US20140033772A1 - Washing machine - Google Patents
Washing machine Download PDFInfo
- Publication number
- US20140033772A1 US20140033772A1 US13/955,634 US201313955634A US2014033772A1 US 20140033772 A1 US20140033772 A1 US 20140033772A1 US 201313955634 A US201313955634 A US 201313955634A US 2014033772 A1 US2014033772 A1 US 2014033772A1
- Authority
- US
- United States
- Prior art keywords
- drum
- inner frame
- water flow
- washing machine
- rib
- 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.)
- Abandoned
Links
Images
Classifications
-
- 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
- D06F37/14—Ribs or rubbing means forming part of the receptacle
- D06F37/145—Ribs or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
-
- 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
- D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
-
- 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
-
- 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
-
- 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
-
- 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
- D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
- D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
-
- 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
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
-
- 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
Definitions
- Embodiments of the present disclosure relate to a frame structure of a washing machine.
- a washing machine is an appliance that washes laundry using electric power.
- a washing machine comprises a tub to store wash water, a drum rotatably mounted in the tub, a pulsator rotatably mounted to a bottom portion of the drum, and a motor and a clutch to rotate the drum and the pulsator.
- a washing machine generally performs a washing process to remove dirt from laundry, and a dehydration process to remove water from the laundry.
- a washing process is performed by rotating a pulsator in a state of laundry and wash water being in a drum, in order to agitate the laundry with the wash water, thereby removing dirt from the laundry.
- a dehydration process is performed by rotating the drum in order to remove water from the laundry.
- a washing machine includes a cabinet including an outer frame defining an appearance and an inner frame at least partially connected to an inner surface of the outer frame, and a drum having a cylindrical shape and rotatably disposed in the inner frame.
- the inner frame includes a water flow disturbing part to disturb water flow generated in a space formed between the drum and the inner frame when the drum is rotated.
- the water flow disturbing part has a shape that at least a portion of the inner frame protrudes outwardly along a periphery of the inner frame so that a length of at least one gap between an inner surface of the inner frame and an outer circumferential surface of the drum is different from a length of another gap.
- the water flow disturbing part may be provided at two or more portions of the inner frame along the periphery of the inner frame.
- the water flow disturbing part may include at least one first water flow disturbing rib which protrudes from an inner surface of the water flow disturbing part toward the outer circumferential surface of the drum.
- the first water flow disturbing rib may include at least one vertical rib which is formed longitudinally in an axial direction of the drum.
- the first water flow disturbing rib may include at least one horizontal rib which is formed in a ring shape in a circumferential direction of the drum.
- the first water flow disturbing rib may include a connecting rib which connects the vertical rib to a bottom surface of the inner frame.
- the water flow disturbing part may include at least one second water flow disturbing rib which has a shape that a portion of the water flow disturbing part protrudes inwardly and extends in an axial direction of the drum.
- the water flow disturbing part may include a first slanted surface and a second slanted surface which are slanted with respect to the inner surface of the inner frame adjacent thereto in an outward direction of the inner frame.
- An angle of the first slanted surface with respect to the inner surface of the inner frame adjacent thereto and an angle of the second slanted surface with respect to the inner surface of the inner frame adjacent thereto may be different from each other.
- the water flow disturbing part may include at least one first water flow disturbing rib which protrudes from an inner surface of the water flow disturbing part toward the outer circumferential surface of the drum, and the first water flow disturbing rib may be provided at either or both of the first slanted surface and the second slanted surface.
- the water flow disturbing part may include a second water flow disturbing rib which has a shape that a portion of the water flow disturbing part protrudes inwardly and extends in an axial direction of the drum.
- a washing machine in accordance with another aspect of the present disclosure, includes an outer frame, an inner frame at least partially connected to an inner surface of the outer frame, and a drum having a cylindrical shape and rotatably disposed in the inner frame.
- the inner frame includes at least one first portion defining a first gap with the drum, and at least one second portion defining a second gap with the drum in order to disturb water flow generated in the first gap, the second gap being larger than the first gap.
- the second portion may be provided at two or more portions of the inner frame along a periphery of the inner frame.
- the second portion may be arranged at an angle of approximately 90 degrees along the periphery of the inner frame.
- the inner frame may include a third portion which is provided between the first portion and the second portion and slantedly connected to the first portion and the second portion.
- the inner frame may include at least one rib which protrudes from an inner surface of the third portion toward an outer circumferential surface of the drum.
- the rib may include at least one first rib which is formed longitudinally in an axial direction of the drum.
- the rib may include at least one second rib which is formed in a ring shape in a circumferential direction of the drum.
- the rib may include a third rib which connects the first rib to a bottom surface of the inner frame.
- the second portion may include a first surface and a second surface which are stepped from each other.
- the second surface may be connected to the bottom surface of the inner frame.
- the inner frame may have a shape capable of disturbing water flow generated in a space formed between the drum and the inner frame, vibration of the drum may be reduced and accordingly the drum may be stably rotated in a dehydration process.
- FIG. 1 is a sectional view showing a washing machine according to an embodiment of the present disclosure
- FIG. 2 is a perspective view showing the washing machine according to an embodiment of the present disclosure
- FIG. 3 is a sectional view taken along line I-I in FIG. 2 ;
- FIG. 4 is a sectional view taken along line II-II in FIG. 2 ;
- FIG. 5 is a perspective view showing an inner frame according to a first embodiment of the present disclosure
- FIG. 6 is a plan view showing the inner frame according to the first embodiment of the present disclosure.
- FIG. 7 is a perspective view showing an inner frame according to a second embodiment of the present disclosure.
- FIG. 8 is a plan view showing the inner frame according to the second embodiment of the present disclosure.
- FIG. 9 is a perspective view showing an inner frame according to a third embodiment of the present disclosure.
- FIG. 10 is a plan view showing the inner frame according to the third embodiment of the present disclosure.
- FIG. 11 is a perspective view showing an inner frame according to a fourth embodiment of the present disclosure.
- FIG. 12 is a plan view showing the inner frame according to the fourth embodiment of the present disclosure.
- FIG. 13 is a perspective view showing an inner frame according to a fifth embodiment of the present disclosure.
- FIG. 14 is a plan view showing the inner frame according to the fifth embodiment of the present disclosure.
- FIG. 15 is a perspective view showing an inner frame according to a sixth embodiment of the present disclosure.
- FIG. 16 is a plan view showing the inner frame according to the sixth embodiment of the present disclosure.
- FIG. 1 is a sectional view showing a washing machine according to an embodiment of the present disclosure.
- a washing machine 1 includes a cabinet 10 defining an appearance thereof, a drum 30 rotatably mounted in the cabinet 10 , and a driving unit mounted below the drum 30 to rotate the same.
- An upper frame 15 is disposed at a top surface of the cabinet 10 .
- the upper frame 15 is formed with an opening 14 through which a user places laundry into the drum 30 .
- a door 16 is provided at the upper frame 15 to open and close the opening 14 .
- a lower frame 18 is disposed at a bottom surface of the cabinet 10 .
- the lower frame 18 is coupled with legs 19 to support the washing machine 1 on the ground.
- Suspension members 21 (refer to FIG. 2 ) to suspend the drum 30 from the cabinet 10 are connected to the top surface of the cabinet 10 .
- the drum 30 is rotatably mounted in the cabinet 10 , and is formed with a plurality of through-holes 36 at an upper peripheral wall of the drum 30 .
- a pulsator 35 is rotatably mounted on a bottom portion of the drum 30 .
- the pulsator 35 serves to agitate laundry introduced into the drum 30 with wash water.
- a water supply device 50 is mounted above the drum 30 in order to supply wash water to the drum 30 .
- the water supply device 50 includes a water supply valve 53 to control water supply, and a water supply pipe 51 to connect the water supply valve 53 to a detergent supply device 60 .
- One end portion of the water supply pipe 51 is connected to an external water supply source (not shown), and the other end portion of the water supply pipe 51 is connected to the detergent supply device 60 .
- the detergent supply device 60 includes a case 61 disposed in the upper frame 15 , and a detergent container 63 detachably attached to the case 61 and serving to contain a detergent.
- the case 61 is formed with an outlet hole 65 at a bottom surface thereof, through which detergent-dissolved wash water flows out of the case 61 .
- the water supplied through the water supply pipe 51 is fed into the drum 30 together with a detergent via the detergent supply device 60 .
- a first drain hose 82 and a second drain hose 84 are disposed below the drum 30 , in order to discharge wash water from the cabinet 10 after a washing or dehydration process is completed.
- the driving unit includes a clutch 120 to selectively rotate the drum 30 and the pulsator 35 , a driving motor 150 to drive the clutch 120 , a flange member 140 connecting a driving shaft 124 of the clutch 120 to a bottom wall 32 of the drum 30 to transmit rotational force of the driving shaft 124 to the drum 30 , and a base plate 160 to which the clutch 120 and the driving motor 150 are fixed.
- FIG. 2 is a perspective view showing the washing machine according to an embodiment of the present disclosure
- FIG. 3 is a sectional view taken along line I-I in FIG. 2
- FIG. 4 is a sectional view taken along line II-II in FIG. 2 .
- the drum 30 is disposed in the cabinet 10 with a predetermined gap from the cabinet 10 . Therefore, a space to additionally store wash water is formed between the cabinet 10 and the drum 30 .
- the cabinet 10 includes an outer frame 10 a forming an appearance of the washing machine 1 , and an inner frame 10 b at least partially connected to an inner surface of the outer frame 10 a.
- the inner frame 10 b has a substantially cylindrical shape.
- An outer circumferential surface of the inner frame 10 b may be connected to the inner surface of at least a portion of the outer frame 10 a using ribs (not shown) or the like, or may be in contact with the inner surface of at least a portion of the outer frame 10 a.
- the inner frame 10 b has a side wall which is slanted in such a manner that a radius thereof is gradually increased from the bottom portion to the top portion. Most of the water discharged from the drum 30 through the through-holes 36 during the dehydration process flows down an inner circumferential surface of the inner frame 10 b, and flows into a drain recess 22 . Because the side wall of the inner frame 10 b is slanted, the water discharged from the drum 30 slowly flows along the slanted surface of the inner frame 10 b. Accordingly, the water flowing into the drain recess 22 is prevented from splashing out of the drain recess 22 .
- the side wall of the inner frame 10 b may have the same slanted angle as a slanted angle ⁇ of a side wall 34 of the drum 30 so as to be in parallel therewith. While the drum 30 is rotated, the drum 30 may vibrate in a radial direction thereof as well as in a vertical direction. In order to prevent interference with the inner frame 10 b of the cabinet 10 due to vibration of the drum 30 in the radial direction, a gap is provided between the drum 30 and the inner frame 10 b. For example, since the inner frame 10 b and the side wall 34 of the drum 30 are disposed in parallel with each other, the gap may be uniformly maintained therebetween and utilization of space in the cabinet 10 may be maximized.
- the outer frame 10 a and the inner frame 10 b may be integrally formed by injection molding.
- the cabinet 10 including the outer frame 10 a and the inner frame 10 b may be made of a material, such as Acrylonitrile Butadiene Styrene (ABS), Poly Propylene (PP) or the like.
- ABS Acrylonitrile Butadiene Styrene
- PP Poly Propylene
- the cabinet 10 may be formed by injection molding to reinforce the strength of the cabinet 10 because the cabinet 10 includes the outer frame 10 a and the inner frame 10 b. That is, the cabinet 10 may not be damaged in the injection molding processes of injection of a material, such as ABS, PP or the like, into a mold, coagulation and separation of the mold.
- the outer frame 10 a and the inner frame 10 b may be separately made of different materials, and may be coupled to each other later.
- the outer frame 10 a may be made of a metal material for strength reinforcement
- the inner frame 10 b may be made of a plastic material.
- the cabinet 10 may be formed by coupling the separately manufactured outer frame 10 a and inner frame 10 b to each other.
- the inner frame 10 b is provided with the drain recess 22 at a lower end portion thereof.
- the drain recess 22 is formed in a bent shape along the periphery of the inner frame 10 b.
- the drain recess 22 includes a first bent portion 22 a which is bent toward a central portion of the inner frame 10 b from the lower end portion of the inner frame 10 b, and a second bent portion 22 b which is bent upwardly and perpendicularly to the ground from the end portion of the first bent portion 22 a.
- the first bent portion 22 a serves to receive the water directly dropping thereon or flowing down the outer circumferential surface of the drum 30 or the inner circumferential surface of the inner frame 10 b after being discharged from the drum 30 through the through-holes 36 during the dehydration process.
- the second bent portion 22 b serves to form a water passage with the inner circumferential surface of the lower end portion of the inner frame 10 b, in order to temporarily store the water flowing down to the first bent portion 22 a and discharge the water.
- the first bent portion 22 a is formed with a drain hole 24 at a portion thereof.
- the drain hole 24 communicates with the drain recess 22 , and discharges the water stored in the drain recess 22 out of the drain recess 22 .
- the second drain hose 84 is connected to an end portion of the drain hole 24 . The water passing through drain hole 24 is finally discharged from the cabinet 10 through the second drain hose 84 and the first drain hose 82 connected to the second drain hose 84 .
- the drum 30 disposed in the inner frame 10 b may rotate about a vertical axis.
- the drum 30 includes a bottom wall 32 and a side wall 34 connected to the bottom wall 32 to define a wash water storage space.
- the bottom wall 32 of the drum 30 is provided with a plurality of ribs 32 a.
- the plurality of ribs 32 a serve to generate centrifugal force acting in the radial direction of the drum 30 (i.e., a direction toward the inner frame 10 b of the cabinet 10 from the center of the drum 30 ) when the drum 30 is rotated. Accordingly, the water flowing down the outer circumferential surface of the drum 30 is prevented from moving toward the center portion of the drum 30 , near which the clutch 120 and the driving motor 150 are disposed, along the bottom wall 32 of the drum 30 .
- the side wall 34 of the drum 30 is slanted such that a diameter of the drum 30 is gradually increased from the bottom wall 32 to the top of the drum 30 .
- the drum 30 rotates at a high speed of approximately 280 rpm or more in the dehydration process.
- the water removed from laundry moves to the side wall 34 of the drum 30 by centrifugal force, and smoothly moves to the upper portion of the drum 30 on the inner circumferential surface of the slanted side wall 34 .
- the slanted angle ⁇ of the side wall 34 with respect to a line I perpendicular to the bottom wall 32 may be in the range of approximately 2° to approximately 10°. If the slanted angle ⁇ is too small, below 2°, the water may not smoothly move to the upper portion of the drum 30 on the inner circumferential surface of the side wall 34 , which causes deterioration of dehydration performance. Conversely, if the slanted angle ⁇ is too large, above 10°, the diameter of the upper portion of the drum 30 may become large, which causes increase in overall width of the cabinet 10 .
- the side wall 34 of the drum 30 is formed with at least one or more through-holes 36 through which the water removed from laundry is discharged from the drum 30 .
- the through-holes 36 are arranged on the peripheral surface of the side wall 34 in a circumferential direction.
- the through-holes 36 may be located at an upper half of the drum 30 so as to prevent outflow of wash water from the drum 30 through the through-holes 36 during the washing process.
- the water discharged from the drum 30 through the through-holes 36 flows down the outer circumferential surface of the drum 30 or the inner circumferential surface of the inner frame 10 b or directly drops through a discharge passage 33 defined by the side wall 34 and the inner circumferential surface of the inner frame 10 b, and flows into the drain recess 22 .
- the drum 30 may further include guide ribs 38 to guide movement of the water discharged from the drum 30 through the through-holes 36 to the drain recess 22 .
- the guide ribs 38 are positioned between the second bent portion 22 b of the drain recess 22 and the inner circumferential surface of the inner frame 10 b.
- the guide ribs 38 extend from the lower end portion of the side wall 34 so as to prevent the water flowing down the outer circumferential surface of the drum 30 from moving toward the center portion of the drum 30 , near which the clutch 120 and the driving motor 150 are disposed, along the bottom wall 32 of the drum 30 and also to ensure smooth flow of the water to the drain recess 22 .
- An interference-prevention recess 39 is defined between a side surface of the bottom wall 32 and the guide ribs 38 .
- the interference-prevention recess 39 has a predetermined depth so as to prevent interference between the drum 30 and the second bent portion 22 b due to vertical vibration of the drum 30 during operation of the washing machine 1 .
- the depth of the interference-prevention recess 39 or the length of the guide ribs 38 extending from the lower end portion of the side wall 34 is related to a vertical vibration width of the drum 30 during the washing or dehydration process. As the vertical vibration width of the drum 30 increases, the depth of the interference-prevention recess 39 increases, however, the extension length of the guide ribs 38 decreases.
- the overall height of the cabinet 10 may be reduced by positioning the guide ribs 38 between the second bent portion 22 b and the inner circumferential surface of the inner frame 10 b and positioning the second bent portion 22 b in the interference-prevention recess 39 . That is, in consideration of the vertical vibration width of the drum 30 , the washing machine 1 may be designed such that the guide ribs 38 are temporarily received in the drain recess 22 and the second bent portion 22 b is temporarily received in the interference-prevention recess 39 , thereby reducing the height of the cabinet 10 by an overlapping length between the guide ribs 38 and the second bent portion 22 b.
- the driving unit is mounted below the drum 30 in order to drive the drum 30 or the pulsator 35 disposed in the drum 30 .
- the driving unit includes a clutch 120 to selectively rotate the drum 30 and the pulsator 35 , a driving motor 150 to drive the clutch 120 , a flange member 140 connecting a driving shaft 124 of the clutch 120 to a bottom wall 32 of the drum 30 to transmit rotational force of the driving shaft 124 to the drum 30 , and a base plate 160 to which the clutch 120 and the driving motor 150 are fixed.
- the bottom wall 32 of the drum 30 is provided with a shaft-coupling part 31 at the center thereof.
- the shaft-coupling part 31 is coupled with the flange member 140 and fixedly supports the flange member 140 .
- the shaft-coupling part 31 includes a shaft-coupling wall 31 a protruding downwardly from the bottom wall 32 outside the drum 30 , and a shaft-inserting hole 31 b defined by the shaft-coupling wall 31 a so that an end portion of the flange member 140 is inserted into the drum 30 through the shaft-inserting hole 31 b.
- a portion of the flange member 140 coupling the driving shaft 124 to the drum 30 is fixedly inserted into the shaft-inserting hole 31 b.
- the flange member 140 includes a first penetration hole 142 formed at the center thereof, into which the driving shaft 124 is fitted, and a second penetration hole 144 formed around the first penetration hole 142 in a circumferential direction.
- the second penetration hole 144 serves as a passage through which the wash water in the drum 30 moves out of the drum 30 when the washing process is completed.
- the clutch 120 includes a housing 122 and a driving shaft 124 rotatably coupled to a center of the housing 122 .
- the housing 122 accommodates bearings to rotatably support the driving shaft 124 and speed reducers to reduce a speed of the driving shaft 124 .
- the driving shaft 124 is inserted through the first penetration hole 142 of the flange member 140 , and is connected to the drum 30 and the pulsator 35 .
- the driving shaft 124 includes a first connecting part 124 a fitted into the first penetration hole 142 , and a second connecting part 124 b extending from the first connecting part 124 a and coupled to the pulsator 35 .
- the first connecting part 124 a and the second connecting part 124 b may rotate simultaneously or separately from each other according to the washing or dehydration process.
- the second connecting part 124 b rotates, and thus only the pulsator 35 coupled to the second connecting part 124 b rotates.
- the first connecting part 124 a and the second connecting part 124 b rotate at the same time, and thus the drum 30 and the pulsator 35 also rotate at the same time.
- the other end portion of the driving shaft 124 is coupled with a pulley 134 to transmit rotational force of the driving motor 150 to the clutch 120 using a drive belt 135 .
- a base plate cover 162 is coupled between the flange member 140 and the base plate 160 .
- the base plate 160 and the base plate cover 162 define a space 161 communicating with the second penetration hole 144 so that the water flowing in the space 161 through the second penetration hole 144 may move to a drain case 174 .
- sealing members 164 are inserted between the flange member 140 and the base plate cover 162 and between the base plate cover 162 and the base plate 160 .
- the drain case 174 is coupled below the base plate 160 .
- the drain case 174 stores the wash water flowing therein via the space 161 defined by the base plate cover 162 and the base plate 160 .
- a drain pipe 176 is provided at an end portion of the drain case 174 in order to discharge the wash water from the drain case 174 .
- the drain pipe 176 is connected with the first drain hose 82 to discharge the wash water from the cabinet 10 .
- the drain pipe 176 is provided with a valve 178 to selectively discharge the wash water from the drain case 174 during the washing process.
- the wash water used in the washing or rinsing process flows in the space 161 between the base plate cover 162 and the base plate 160 through the second penetration hole 144 of the flange member 140 , and is discharged from the cabinet 10 through the drain case 174 and the first drain hose 82 .
- the wash water removed from laundry in the dehydration process moves out of the drum 30 through the through-holes 36 , flows down the outer circumferential surface of the drum 30 or the inner circumferential surface of the inner frame 10 b to be received in the drain recess 22 , and is discharged from the cabinet 10 through the drain hole 24 and the second drain hose 84 connected to the drain hole 24 .
- the base plate 160 is coupled to a lower portion of the cabinet 10 by the suspension members 21 .
- At least two or more suspension members 21 are coupled to corner portions of the cabinet 10 including the quadrangular-shaped outer frame 10 a and the cylindrical-shaped inner frame 10 b, in order to support the drum 30 .
- the corner portions of the cabinet 10 are provided with coupling ribs 10 c to which end portions of the suspension members 21 are coupled.
- the coupling ribs 10 c may be formed integrally with the outer frame 10 a and the inner frame 10 b by injection molding.
- Connecting brackets 180 are coupled between the base plate 160 and the suspension members 21 .
- Each of the connecting brackets 180 is provided with an interference-prevention recess 181 which is bent downwardly so as to prevent interference with the drain recess 22 during operation of the washing machine.
- the base plate 160 and the connecting brackets 180 may be formed integrally with each other.
- the drum 30 Since the drum 30 is connected to the clutch 120 and the base plate 160 fixing the clutch 120 below the drum 30 and the base plate 160 is coupled to the lower portion of the cabinet 10 by the suspension members 21 , load applied to the drum 30 is transmitted to the suspension members 21 through the base plate 160 , and the suspension members 21 absorb vibration due to the load applied to the drum 30 .
- the cabinet 10 since the cabinet 10 has a two part structure including the outer frame 10 a and the inner frame 10 b, the cabinet 10 has sufficient strength to bear weights of the drum 30 , the clutch 120 and the driving motor 150 connected thereto by the suspension members 21 .
- the cabinet may have more than two part structure including a plurality of frames.
- a damping device 200 connects the base plate 160 to the lower frame 18 , and serves to absorb vibration generated in rotation of the drum 30 .
- the damping device 200 includes a supporting bracket 210 coupled to the bottom surface of the base plate 160 , and a plurality of dampers 220 and 240 , each of which has an end portion connected to the supporting bracket 210 and the other end portion connected to the lower frame 18 .
- Both end portions of the dampers 220 and 240 are respectively pivotably coupled to the supporting bracket 210 and the lower bracket 18 , so as to absorb vibration generated in rotation of the drum 30 . Accordingly, rotation of the drum 30 is stabilized, and the drum 30 is prevented from colliding with the inner frame 10 b.
- the dampers 220 and 240 may be radially arranged about a rotation center axis Lc of the drum 30 .
- the inner frame 10 b may have, for example, a shape capable of decreasing vibration due to eccentric rotation of the drum 30 by disturbing water flow formed between the inner frame 10 b and the drum 30 when the drum 30 is rotated.
- FIG. 5 is a perspective view showing an inner frame according to a first embodiment of the present disclosure
- FIG. 6 is a plan view showing the inner frame according to the first embodiment of the present disclosure.
- the inner frame 10 b may have, for example, a shape capable of disturbing water flow formed in the space formed between the drum 30 and the inner frame 10 b when the drum 30 is rotated.
- the inner frame 10 b includes at least one first portion 111 spaced from the drum 30 to define a first gap G 1 , at least one second portion 112 spaced from the drum 30 to define a second gap G 2 , which is larger than the first gap G 1 , in order to disturb water flow formed in the first gap G 1 , and third portions 113 a and 113 b disposed between the first portion 111 and the second portion 112 and slantedly connected to the same.
- the second portion 112 and the third portions 113 a and 113 b connected to both end portions of the second portion 112 form a water flow disturbing part 110 .
- the water flow disturbing part 110 may have, for example, a shape that a portion of the inner frame 10 b protrudes outwardly along the periphery of the inner frame 10 b so that a length of the gap between the inner surface of the inner frame 10 b and the outer circumferential surface of the drum 30 different from a length of another gap. Therefore, the distance between the inner frame 10 b the drum 30 may not be uniform.
- the third portions 113 a and 113 b of the water flow disturbing part 110 include a first slanted surface 115 and a second slanted surface 116 , respectively, which are slanted with respect to the inner surface of the inner frame 10 b adjacent thereto in an outward direction of the inner frame 10 b.
- the water flow disturbing part 110 may include at least one edge portion 114 a, 114 b which is bent toward the drum 30 .
- a plurality of edge portions 114 a and 114 b are formed at the junctions of the third portions 113 a and 113 b, the first portion 111 and the second portion 112 .
- the edge portions 114 a and 114 b are formed between the second portion 112 and the third portion 113 a or 113 b so that the second portion is depressed toward the drum 30 .
- the edge portions may be bent toward the drum 30 , the edge portions may be separately manufactured and assembled together with the second and third portions.
- the water flow generated in the space formed between the drum 30 and the inner frame 10 b is changed in speed and direction at the third portions 113 a and 113 b slantedly connected to the first portion 111 and the second portion 112 .
- the first slanted surface 115 and the second slanted surface 116 of the third portions 113 a and 113 b guide the water flow generated in the space formed between the drum 30 and the inner frame 10 b to an inner surface 112 a of the second portion 112 and the edge portions 114 a and 114 b. Accordingly, the water collides with the inner surface 112 a of the second portion 112 and the edge portions 114 a and 114 b. As a result, the speed and direction of water flow are changed, and thus the water flow is disturbed.
- the second gap G 2 serves as a section in which a width of the flow passage is relatively large. Therefore, the speed of water flow is reduced, and the pressure is increased in the area of the second gap G 2 . That is, the force applied to the drum 30 by water flow in the area of the second gap G 2 is larger than the force in other areas. In addition, the force F applied to the drum 30 by water flow in the area of the second gap G 2 is directed toward the center of the drum 30 .
- a plurality of water flow disturbing parts 110 may be radially arranged at an angle of approximately 90 degrees along the periphery of the inner frame 10 b.
- all of the forces F 1 , F 2 , F 3 and F 4 acting on the drum 30 by water flow in each area of the second gap G 2 are directed toward the center of the drum 30 . Accordingly, vibration due to eccentric rotation of the drum 30 is reduced.
- the inner frame may include one or more water flow disturbing parts.
- the drum 30 rotates eccentrically, and an area R (hereinafter referred to as a first area), in which the gap between the outer circumferential surface of the drum 30 and the inner surface of the inner frame 10 b becomes smaller than the gap in the other areas, may be generated. Since the first area R serves as a section in which a width of the flow passage formed in the space formed between the drum 30 and the inner frame 10 b becomes relatively small, the speed of water flow is increased, and the pressure is decreased. Accordingly, force Fr is applied to the drum 30 in such a direction that the gap of the first area R is further reduced.
- the water flow disturbing parts 110 located adjacent to both side portions of the first area R reduce vibration due to eccentric rotation of the drum 30 in such a manner that a resultant force of the pressures F 1 and F 2 acting on the drum 30 eliminates the force Fr acting on the drum 30 in a direction of reducing the gap of the first area R.
- the water flow disturbing parts 110 disturb the water flow generated in the space formed between the drum 30 and the inner frame 10 b, and reduce vibration due to eccentric rotation of the drum 30 by eliminating the force acting on the drum 30 in an eccentric direction of the drum 30 , thereby preventing collision between the drum 30 and the inner frame 10 b in advance.
- FIG. 7 is a perspective view showing an inner frame according to a second embodiment of the present disclosure
- FIG. 8 is a plan view showing the inner frame according to the second embodiment of the present disclosure.
- an inner frame 210 b includes at least one vertical rib 211 which protrudes from the inner surface of the water flow disturbing part 110 toward the outer circumferential surface of the drum 30 .
- the vertical rib 211 is formed longitudinally in an extension direction of the rotation center axis Lc of the drum 30 , and protrudes from the first slanted surface 115 and the second slanted surface 116 of the third portions 113 a and 113 b toward the outer circumferential surface of the drum 30 by a predetermined length.
- the water flow generated in the space formed between the drum 30 and the inner frame 210 b is guided to the vertical rib 211 by the first slanted surface 115 and the second slanted surface 116 of the third portions 113 a and 113 b. Accordingly, the water collides with the vertical rib 211 , and the speed and direction of the water flow are changed.
- the vertical rib 211 disturbs the water flow generated in the space formed between the drum 30 and the inner frame 210 b, and changes the magnitude and direction of the force of the water flow acting on the drum 30 , thereby reducing vibration due to eccentric rotation of the drum 30 .
- FIG. 9 is a perspective view showing an inner frame according to a third embodiment of the present disclosure
- FIG. 10 is a plan view showing the inner frame according to the third embodiment of the present disclosure.
- an inner frame 310 b includes a connecting rib 311 to connect the vertical rib 211 to a bottom portion of the inner frame 310 b.
- the connecting rib 311 may have, for example, a shape that a width thereof is gradually decreased from the bottom portion to the top portion in an extension direction of the rotation center axis Lc of the drum 30 .
- the water flow generated in the space formed between the drum 30 and the inner frame 310 b is guided to the connecting rib 311 by the first slanted surface 115 and the second slanted surface 116 of the third portions 113 a and 113 b. Accordingly, the water collides with the connecting rib 311 , and the speed and direction of the water flow are changed.
- the connecting rib 311 and the vertical rib 211 disturb the water flow generated in the space formed between the drum 30 and the inner frame 310 b, and change the magnitude and direction of the force of the water flow acting on the drum 30 , thereby reducing vibration due to eccentric rotation of the drum 30 .
- FIG. 11 is a perspective view showing an inner frame according to a fourth embodiment of the present disclosure
- FIG. 12 is a plan view showing the inner frame according to the fourth embodiment of the present disclosure.
- an inner frame 410 b includes at least one water flow disturbing rib 411 , which is formed in an extension direction of the rotation center axis Lc of the drum 30 and may have, for example, a shape that a portion of the water flow disturbing part 110 protrudes inwardly so that a length of the gap between the inner surface of the water flow disturbing part 110 and the outer circumferential surface of the drum 30 is different from a length of another gap. Therefore, the distance between the inner frame 410 b and the drum 30 may not be uniform.
- the water flow disturbing rib 411 includes a stepped rib surface 422 which is provided at a lower portion of the water flow disturbing part 110 and is stepped from the inner surface of the water flow disturbing part 110 , a first stepped surface 431 to connect the inner surface of the water flow disturbing part 110 to the stepped rib surface 422 in a longitudinal direction of the water flow disturbing rib 411 , and second stepped surfaces 432 to connect the inner surface of the inner frame 410 b to the stepped rib surface 422 in a width direction of the water flow disturbing rib 411 .
- the water flow disturbing rib 411 is disposed between the first slanted surface 115 and the second slanted surface 116 of the third portions 113 a and 113 b, and disturbs the water flow.
- the water flow generated in the space formed between the drum 30 and the inner frame 410 b is guided to the water flow disturbing rib 411 by the first slanted surface 115 and the second slanted surface 116 . Accordingly, the water collides with the second stepped surfaces 432 , and the speed and direction of the water flow are changed.
- the first stepped surface 431 changes the speed and direction of the water flow in a vertical direction of the water flow disturbing rib 411 .
- the water flow disturbing rib 411 disturbs the water flow generated in the space formed between the drum 30 and the inner frame 410 b using the first stepped surface 431 and the second stepped surfaces 432 , and changes the magnitude and direction of the force of the water flow acting on the drum 30 , thereby reducing vibration due to eccentric rotation of the drum 30 .
- FIG. 13 is a perspective view showing an inner frame according to a fifth embodiment of the present disclosure
- FIG. 14 is a plan view showing the inner frame according to the fifth embodiment of the present disclosure.
- an inner frame 510 b includes at least one horizontal rib 511 which protrudes from an inner surface of the inner frame 510 b toward the outer circumferential surface of the drum 30 .
- the horizontal rib 511 has a ring shape formed in a peripheral direction of the drum 30 .
- the horizontal rib 511 disturbs the water flow generated in the space formed between the drum 30 and the inner frame 510 b, and changes the magnitude and direction of the force of the water flow acting on the drum 30 , thereby reducing vibration due to eccentric rotation of the drum 30 .
- FIG. 15 is a perspective view showing an inner frame according to a sixth embodiment of the present disclosure
- FIG. 16 is a plan view showing the inner frame according to the sixth embodiment of the present disclosure.
- an inner frame 610 b includes sawtooth-shaped water flow disturbing parts 610 which are arranged spaced apart from each other along a periphery of the inner frame 610 b.
- the water flow disturbing parts 610 may have, for example, a shape that a portion of the inner frame 610 b protrudes outwardly along the periphery of the inner frame 610 b so that a length of the gap between the inner surface of the inner frame 610 b and the outer circumferential surface of the drum 30 is different from a length of another gap. Therefore, the distance between the inner frame 610 b and the drum 30 may not be uniform.
- Each of the water flow disturbing parts 610 includes a first slanted surface 615 and a second slanted surface 616 which are slanted outwardly from the inner frame 610 b at slanted angles r 1 and r 2 .
- the slanted angle r 1 of the first slanted surface 615 with respect to the inner surface of the inner frame 610 b and the slanted angle r 2 of the second slanted surface 616 with respect to the inner surface of the inner frame 610 b may be different from each other.
- the water flow generated in the space formed between the drum 30 and the inner frame 610 b collides with the first slanted surface 615 and the second slanted surface 616 , and the speed and direction thereof are changed.
- the water flow disturbing parts 610 disturb the water flow generated in the space formed between the drum 30 and the inner frame 610 b using the first slanted surface 615 and the second slanted surface 616 , and change the magnitude and direction of the force of the water flow acting on the drum 30 , thereby reducing vibration due to eccentric rotation of the drum 30 .
Abstract
Description
- This application claims the priority benefit of Korean Patent Application No. 10-2012-0085147, filed on Aug. 3, 2012 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
- 1. Field
- Embodiments of the present disclosure relate to a frame structure of a washing machine.
- 2. Description of the Related Art
- A washing machine is an appliance that washes laundry using electric power. In general, a washing machine comprises a tub to store wash water, a drum rotatably mounted in the tub, a pulsator rotatably mounted to a bottom portion of the drum, and a motor and a clutch to rotate the drum and the pulsator.
- A washing machine generally performs a washing process to remove dirt from laundry, and a dehydration process to remove water from the laundry.
- A washing process is performed by rotating a pulsator in a state of laundry and wash water being in a drum, in order to agitate the laundry with the wash water, thereby removing dirt from the laundry. A dehydration process is performed by rotating the drum in order to remove water from the laundry.
- When the drum is rotated at a high speed in the dehydration process, water flow is generated in a space formed between the drum and the frame. The water flow exerts force upon the drum in a variable direction. In the dehydration process, because the drum is rotated in a state of the wash water used in the washing process being discharged from the drum, vibration due to eccentric rotation of the drum may occur when the laundry accumulates at one side portion of the drum. The vibration due to eccentric rotation of the drum may be increased by force acting on the drum by the water flow generated in a space between the drum and the frame. Collision between the drum and the frame may also occur.
- It is an aspect of the present disclosure to provide a washing machine having an improved structure capable of stably rotating a drum in a dehydration process while preventing collision with a frame.
- Additional aspects of the disclosure will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the disclosure.
- In accordance with an aspect of the present disclosure, a washing machine includes a cabinet including an outer frame defining an appearance and an inner frame at least partially connected to an inner surface of the outer frame, and a drum having a cylindrical shape and rotatably disposed in the inner frame. The inner frame includes a water flow disturbing part to disturb water flow generated in a space formed between the drum and the inner frame when the drum is rotated. The water flow disturbing part has a shape that at least a portion of the inner frame protrudes outwardly along a periphery of the inner frame so that a length of at least one gap between an inner surface of the inner frame and an outer circumferential surface of the drum is different from a length of another gap.
- The water flow disturbing part may be provided at two or more portions of the inner frame along the periphery of the inner frame.
- The water flow disturbing part may include at least one first water flow disturbing rib which protrudes from an inner surface of the water flow disturbing part toward the outer circumferential surface of the drum.
- The first water flow disturbing rib may include at least one vertical rib which is formed longitudinally in an axial direction of the drum.
- The first water flow disturbing rib may include at least one horizontal rib which is formed in a ring shape in a circumferential direction of the drum.
- The first water flow disturbing rib may include a connecting rib which connects the vertical rib to a bottom surface of the inner frame.
- The water flow disturbing part may include at least one second water flow disturbing rib which has a shape that a portion of the water flow disturbing part protrudes inwardly and extends in an axial direction of the drum.
- The water flow disturbing part may include a first slanted surface and a second slanted surface which are slanted with respect to the inner surface of the inner frame adjacent thereto in an outward direction of the inner frame.
- An angle of the first slanted surface with respect to the inner surface of the inner frame adjacent thereto and an angle of the second slanted surface with respect to the inner surface of the inner frame adjacent thereto may be different from each other.
- The water flow disturbing part may include at least one first water flow disturbing rib which protrudes from an inner surface of the water flow disturbing part toward the outer circumferential surface of the drum, and the first water flow disturbing rib may be provided at either or both of the first slanted surface and the second slanted surface.
- The water flow disturbing part may include a second water flow disturbing rib which has a shape that a portion of the water flow disturbing part protrudes inwardly and extends in an axial direction of the drum.
- In accordance with another aspect of the present disclosure, a washing machine includes an outer frame, an inner frame at least partially connected to an inner surface of the outer frame, and a drum having a cylindrical shape and rotatably disposed in the inner frame. The inner frame includes at least one first portion defining a first gap with the drum, and at least one second portion defining a second gap with the drum in order to disturb water flow generated in the first gap, the second gap being larger than the first gap.
- The second portion may be provided at two or more portions of the inner frame along a periphery of the inner frame.
- The second portion may be arranged at an angle of approximately 90 degrees along the periphery of the inner frame.
- The inner frame may include a third portion which is provided between the first portion and the second portion and slantedly connected to the first portion and the second portion.
- The inner frame may include at least one rib which protrudes from an inner surface of the third portion toward an outer circumferential surface of the drum.
- The rib may include at least one first rib which is formed longitudinally in an axial direction of the drum.
- The rib may include at least one second rib which is formed in a ring shape in a circumferential direction of the drum.
- The rib may include a third rib which connects the first rib to a bottom surface of the inner frame.
- The second portion may include a first surface and a second surface which are stepped from each other.
- The second surface may be connected to the bottom surface of the inner frame.
- As is apparent from the above description, since the inner frame may have a shape capable of disturbing water flow generated in a space formed between the drum and the inner frame, vibration of the drum may be reduced and accordingly the drum may be stably rotated in a dehydration process.
- In addition, durability of the washing machine may be improved.
- These and/or other aspects of the disclosure will become apparent and more readily appreciated from the following description of embodiments, taken in conjunction with the accompanying drawings of which:
-
FIG. 1 is a sectional view showing a washing machine according to an embodiment of the present disclosure; -
FIG. 2 is a perspective view showing the washing machine according to an embodiment of the present disclosure; -
FIG. 3 is a sectional view taken along line I-I inFIG. 2 ; -
FIG. 4 is a sectional view taken along line II-II inFIG. 2 ; -
FIG. 5 is a perspective view showing an inner frame according to a first embodiment of the present disclosure; -
FIG. 6 is a plan view showing the inner frame according to the first embodiment of the present disclosure; -
FIG. 7 is a perspective view showing an inner frame according to a second embodiment of the present disclosure; -
FIG. 8 is a plan view showing the inner frame according to the second embodiment of the present disclosure; -
FIG. 9 is a perspective view showing an inner frame according to a third embodiment of the present disclosure; -
FIG. 10 is a plan view showing the inner frame according to the third embodiment of the present disclosure; -
FIG. 11 is a perspective view showing an inner frame according to a fourth embodiment of the present disclosure; -
FIG. 12 is a plan view showing the inner frame according to the fourth embodiment of the present disclosure; -
FIG. 13 is a perspective view showing an inner frame according to a fifth embodiment of the present disclosure; -
FIG. 14 is a plan view showing the inner frame according to the fifth embodiment of the present disclosure; -
FIG. 15 is a perspective view showing an inner frame according to a sixth embodiment of the present disclosure; and -
FIG. 16 is a plan view showing the inner frame according to the sixth embodiment of the present disclosure. - Reference will now be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like components throughout.
-
FIG. 1 is a sectional view showing a washing machine according to an embodiment of the present disclosure. - As shown in
FIG. 1 , awashing machine 1 includes acabinet 10 defining an appearance thereof, adrum 30 rotatably mounted in thecabinet 10, and a driving unit mounted below thedrum 30 to rotate the same. - An
upper frame 15 is disposed at a top surface of thecabinet 10. Theupper frame 15 is formed with anopening 14 through which a user places laundry into thedrum 30. Adoor 16 is provided at theupper frame 15 to open and close theopening 14. - A
lower frame 18 is disposed at a bottom surface of thecabinet 10. Thelower frame 18 is coupled withlegs 19 to support thewashing machine 1 on the ground. - Suspension members 21 (refer to
FIG. 2 ) to suspend thedrum 30 from thecabinet 10 are connected to the top surface of thecabinet 10. - The
drum 30 is rotatably mounted in thecabinet 10, and is formed with a plurality of through-holes 36 at an upper peripheral wall of thedrum 30. - A
pulsator 35 is rotatably mounted on a bottom portion of thedrum 30. Thepulsator 35 serves to agitate laundry introduced into thedrum 30 with wash water. - A
water supply device 50 is mounted above thedrum 30 in order to supply wash water to thedrum 30. Thewater supply device 50 includes awater supply valve 53 to control water supply, and awater supply pipe 51 to connect thewater supply valve 53 to adetergent supply device 60. - One end portion of the
water supply pipe 51 is connected to an external water supply source (not shown), and the other end portion of thewater supply pipe 51 is connected to thedetergent supply device 60. - The
detergent supply device 60 includes acase 61 disposed in theupper frame 15, and adetergent container 63 detachably attached to thecase 61 and serving to contain a detergent. Thecase 61 is formed with anoutlet hole 65 at a bottom surface thereof, through which detergent-dissolved wash water flows out of thecase 61. - The water supplied through the
water supply pipe 51 is fed into thedrum 30 together with a detergent via thedetergent supply device 60. - A
first drain hose 82 and asecond drain hose 84 are disposed below thedrum 30, in order to discharge wash water from thecabinet 10 after a washing or dehydration process is completed. - The driving unit includes a clutch 120 to selectively rotate the
drum 30 and thepulsator 35, a drivingmotor 150 to drive the clutch 120, aflange member 140 connecting a drivingshaft 124 of the clutch 120 to abottom wall 32 of thedrum 30 to transmit rotational force of the drivingshaft 124 to thedrum 30, and abase plate 160 to which the clutch 120 and the drivingmotor 150 are fixed. -
FIG. 2 is a perspective view showing the washing machine according to an embodiment of the present disclosure,FIG. 3 is a sectional view taken along line I-I inFIG. 2 , andFIG. 4 is a sectional view taken along line II-II inFIG. 2 . - As shown in
FIGS. 2 through 4 , thedrum 30 is disposed in thecabinet 10 with a predetermined gap from thecabinet 10. Therefore, a space to additionally store wash water is formed between thecabinet 10 and thedrum 30. - The
cabinet 10 includes anouter frame 10 a forming an appearance of thewashing machine 1, and aninner frame 10 b at least partially connected to an inner surface of theouter frame 10 a. - The
inner frame 10 b has a substantially cylindrical shape. An outer circumferential surface of theinner frame 10 b may be connected to the inner surface of at least a portion of theouter frame 10 a using ribs (not shown) or the like, or may be in contact with the inner surface of at least a portion of theouter frame 10 a. - The
inner frame 10 b has a side wall which is slanted in such a manner that a radius thereof is gradually increased from the bottom portion to the top portion. Most of the water discharged from thedrum 30 through the through-holes 36 during the dehydration process flows down an inner circumferential surface of theinner frame 10 b, and flows into adrain recess 22. Because the side wall of theinner frame 10 b is slanted, the water discharged from thedrum 30 slowly flows along the slanted surface of theinner frame 10 b. Accordingly, the water flowing into thedrain recess 22 is prevented from splashing out of thedrain recess 22. - The side wall of the
inner frame 10 b may have the same slanted angle as a slanted angle α of aside wall 34 of thedrum 30 so as to be in parallel therewith. While thedrum 30 is rotated, thedrum 30 may vibrate in a radial direction thereof as well as in a vertical direction. In order to prevent interference with theinner frame 10 b of thecabinet 10 due to vibration of thedrum 30 in the radial direction, a gap is provided between thedrum 30 and theinner frame 10 b. For example, since theinner frame 10 b and theside wall 34 of thedrum 30 are disposed in parallel with each other, the gap may be uniformly maintained therebetween and utilization of space in thecabinet 10 may be maximized. - In order to improve productivity, the
outer frame 10 a and theinner frame 10 b may be integrally formed by injection molding. In this case, thecabinet 10 including theouter frame 10 a and theinner frame 10 b may be made of a material, such as Acrylonitrile Butadiene Styrene (ABS), Poly Propylene (PP) or the like. Thecabinet 10 may be formed by injection molding to reinforce the strength of thecabinet 10 because thecabinet 10 includes theouter frame 10 a and theinner frame 10 b. That is, thecabinet 10 may not be damaged in the injection molding processes of injection of a material, such as ABS, PP or the like, into a mold, coagulation and separation of the mold. - The
outer frame 10 a and theinner frame 10 b may be separately made of different materials, and may be coupled to each other later. For example, theouter frame 10 a may be made of a metal material for strength reinforcement, and theinner frame 10 b may be made of a plastic material. Thecabinet 10 may be formed by coupling the separately manufacturedouter frame 10 a andinner frame 10 b to each other. - The
inner frame 10 b is provided with thedrain recess 22 at a lower end portion thereof. Thedrain recess 22 is formed in a bent shape along the periphery of theinner frame 10 b. - The
drain recess 22 includes a firstbent portion 22 a which is bent toward a central portion of theinner frame 10 b from the lower end portion of theinner frame 10 b, and a secondbent portion 22 b which is bent upwardly and perpendicularly to the ground from the end portion of the firstbent portion 22 a. - The first
bent portion 22 a serves to receive the water directly dropping thereon or flowing down the outer circumferential surface of thedrum 30 or the inner circumferential surface of theinner frame 10 b after being discharged from thedrum 30 through the through-holes 36 during the dehydration process. The secondbent portion 22 b serves to form a water passage with the inner circumferential surface of the lower end portion of theinner frame 10 b, in order to temporarily store the water flowing down to the firstbent portion 22 a and discharge the water. - The first
bent portion 22 a is formed with adrain hole 24 at a portion thereof. Thedrain hole 24 communicates with thedrain recess 22, and discharges the water stored in thedrain recess 22 out of thedrain recess 22. Thesecond drain hose 84 is connected to an end portion of thedrain hole 24. The water passing throughdrain hole 24 is finally discharged from thecabinet 10 through thesecond drain hose 84 and thefirst drain hose 82 connected to thesecond drain hose 84. - The
drum 30 disposed in theinner frame 10 b may rotate about a vertical axis. - The
drum 30 includes abottom wall 32 and aside wall 34 connected to thebottom wall 32 to define a wash water storage space. - The
bottom wall 32 of thedrum 30 is provided with a plurality of ribs 32 a. The plurality of ribs 32 a serve to generate centrifugal force acting in the radial direction of the drum 30 (i.e., a direction toward theinner frame 10 b of thecabinet 10 from the center of the drum 30) when thedrum 30 is rotated. Accordingly, the water flowing down the outer circumferential surface of thedrum 30 is prevented from moving toward the center portion of thedrum 30, near which the clutch 120 and the drivingmotor 150 are disposed, along thebottom wall 32 of thedrum 30. - The
side wall 34 of thedrum 30 is slanted such that a diameter of thedrum 30 is gradually increased from thebottom wall 32 to the top of thedrum 30. Thedrum 30 rotates at a high speed of approximately 280 rpm or more in the dehydration process. The water removed from laundry moves to theside wall 34 of thedrum 30 by centrifugal force, and smoothly moves to the upper portion of thedrum 30 on the inner circumferential surface of the slantedside wall 34. - The slanted angle α of the
side wall 34 with respect to a line I perpendicular to thebottom wall 32 may be in the range of approximately 2° to approximately 10°. If the slanted angle α is too small, below 2°, the water may not smoothly move to the upper portion of thedrum 30 on the inner circumferential surface of theside wall 34, which causes deterioration of dehydration performance. Conversely, if the slanted angle α is too large, above 10°, the diameter of the upper portion of thedrum 30 may become large, which causes increase in overall width of thecabinet 10. - The
side wall 34 of thedrum 30 is formed with at least one or more through-holes 36 through which the water removed from laundry is discharged from thedrum 30. - The through-
holes 36 are arranged on the peripheral surface of theside wall 34 in a circumferential direction. The through-holes 36 may be located at an upper half of thedrum 30 so as to prevent outflow of wash water from thedrum 30 through the through-holes 36 during the washing process. - The water discharged from the
drum 30 through the through-holes 36 flows down the outer circumferential surface of thedrum 30 or the inner circumferential surface of theinner frame 10 b or directly drops through adischarge passage 33 defined by theside wall 34 and the inner circumferential surface of theinner frame 10 b, and flows into thedrain recess 22. - The
drum 30 may further includeguide ribs 38 to guide movement of the water discharged from thedrum 30 through the through-holes 36 to thedrain recess 22. - The
guide ribs 38 are positioned between the secondbent portion 22 b of thedrain recess 22 and the inner circumferential surface of theinner frame 10 b. Theguide ribs 38 extend from the lower end portion of theside wall 34 so as to prevent the water flowing down the outer circumferential surface of thedrum 30 from moving toward the center portion of thedrum 30, near which the clutch 120 and the drivingmotor 150 are disposed, along thebottom wall 32 of thedrum 30 and also to ensure smooth flow of the water to thedrain recess 22. - An interference-
prevention recess 39 is defined between a side surface of thebottom wall 32 and theguide ribs 38. The interference-prevention recess 39 has a predetermined depth so as to prevent interference between thedrum 30 and the secondbent portion 22 b due to vertical vibration of thedrum 30 during operation of thewashing machine 1. - The depth of the interference-
prevention recess 39 or the length of theguide ribs 38 extending from the lower end portion of theside wall 34 is related to a vertical vibration width of thedrum 30 during the washing or dehydration process. As the vertical vibration width of thedrum 30 increases, the depth of the interference-prevention recess 39 increases, however, the extension length of theguide ribs 38 decreases. - The overall height of the
cabinet 10 may be reduced by positioning theguide ribs 38 between the secondbent portion 22 b and the inner circumferential surface of theinner frame 10 b and positioning the secondbent portion 22 b in the interference-prevention recess 39. That is, in consideration of the vertical vibration width of thedrum 30, thewashing machine 1 may be designed such that theguide ribs 38 are temporarily received in thedrain recess 22 and the secondbent portion 22 b is temporarily received in the interference-prevention recess 39, thereby reducing the height of thecabinet 10 by an overlapping length between theguide ribs 38 and the secondbent portion 22 b. - The driving unit is mounted below the
drum 30 in order to drive thedrum 30 or thepulsator 35 disposed in thedrum 30. - The driving unit includes a clutch 120 to selectively rotate the
drum 30 and thepulsator 35, a drivingmotor 150 to drive the clutch 120, aflange member 140 connecting a drivingshaft 124 of the clutch 120 to abottom wall 32 of thedrum 30 to transmit rotational force of the drivingshaft 124 to thedrum 30, and abase plate 160 to which the clutch 120 and the drivingmotor 150 are fixed. - The
bottom wall 32 of thedrum 30 is provided with a shaft-coupling part 31 at the center thereof. The shaft-coupling part 31 is coupled with theflange member 140 and fixedly supports theflange member 140. The shaft-coupling part 31 includes a shaft-coupling wall 31 a protruding downwardly from thebottom wall 32 outside thedrum 30, and a shaft-insertinghole 31 b defined by the shaft-coupling wall 31 a so that an end portion of theflange member 140 is inserted into thedrum 30 through the shaft-insertinghole 31 b. - A portion of the
flange member 140 coupling the drivingshaft 124 to thedrum 30 is fixedly inserted into the shaft-insertinghole 31 b. - The
flange member 140 includes afirst penetration hole 142 formed at the center thereof, into which the drivingshaft 124 is fitted, and asecond penetration hole 144 formed around thefirst penetration hole 142 in a circumferential direction. - The
second penetration hole 144 serves as a passage through which the wash water in thedrum 30 moves out of thedrum 30 when the washing process is completed. - The clutch 120 includes a
housing 122 and a drivingshaft 124 rotatably coupled to a center of thehousing 122. - The
housing 122 accommodates bearings to rotatably support the drivingshaft 124 and speed reducers to reduce a speed of the drivingshaft 124. - The driving
shaft 124 is inserted through thefirst penetration hole 142 of theflange member 140, and is connected to thedrum 30 and thepulsator 35. - The driving
shaft 124 includes a first connectingpart 124 a fitted into thefirst penetration hole 142, and a second connectingpart 124 b extending from the first connectingpart 124 a and coupled to thepulsator 35. The first connectingpart 124 a and the second connectingpart 124 b may rotate simultaneously or separately from each other according to the washing or dehydration process. In the washing process, the second connectingpart 124 b rotates, and thus only thepulsator 35 coupled to the second connectingpart 124 b rotates. In the dehydration process, the first connectingpart 124 a and the second connectingpart 124 b rotate at the same time, and thus thedrum 30 and thepulsator 35 also rotate at the same time. The other end portion of the drivingshaft 124 is coupled with apulley 134 to transmit rotational force of the drivingmotor 150 to the clutch 120 using adrive belt 135. - A
base plate cover 162 is coupled between theflange member 140 and thebase plate 160. Thebase plate 160 and thebase plate cover 162 define aspace 161 communicating with thesecond penetration hole 144 so that the water flowing in thespace 161 through thesecond penetration hole 144 may move to adrain case 174. In order to prevent wash water leakage, sealingmembers 164 are inserted between theflange member 140 and thebase plate cover 162 and between thebase plate cover 162 and thebase plate 160. - The
drain case 174 is coupled below thebase plate 160. Thedrain case 174 stores the wash water flowing therein via thespace 161 defined by thebase plate cover 162 and thebase plate 160. Adrain pipe 176 is provided at an end portion of thedrain case 174 in order to discharge the wash water from thedrain case 174. Thedrain pipe 176 is connected with thefirst drain hose 82 to discharge the wash water from thecabinet 10. Thedrain pipe 176 is provided with avalve 178 to selectively discharge the wash water from thedrain case 174 during the washing process. - The wash water used in the washing or rinsing process flows in the
space 161 between thebase plate cover 162 and thebase plate 160 through thesecond penetration hole 144 of theflange member 140, and is discharged from thecabinet 10 through thedrain case 174 and thefirst drain hose 82. The wash water removed from laundry in the dehydration process moves out of thedrum 30 through the through-holes 36, flows down the outer circumferential surface of thedrum 30 or the inner circumferential surface of theinner frame 10 b to be received in thedrain recess 22, and is discharged from thecabinet 10 through thedrain hole 24 and thesecond drain hose 84 connected to thedrain hole 24. - The
base plate 160 is coupled to a lower portion of thecabinet 10 by thesuspension members 21. At least two ormore suspension members 21 are coupled to corner portions of thecabinet 10 including the quadrangular-shapedouter frame 10 a and the cylindrical-shapedinner frame 10 b, in order to support thedrum 30. The corner portions of thecabinet 10 are provided withcoupling ribs 10 c to which end portions of thesuspension members 21 are coupled. Thecoupling ribs 10 c may be formed integrally with theouter frame 10 a and theinner frame 10 b by injection molding. - Connecting
brackets 180 are coupled between thebase plate 160 and thesuspension members 21. Each of the connectingbrackets 180 is provided with an interference-prevention recess 181 which is bent downwardly so as to prevent interference with thedrain recess 22 during operation of the washing machine. Thebase plate 160 and the connectingbrackets 180 may be formed integrally with each other. - Since the
drum 30 is connected to the clutch 120 and thebase plate 160 fixing the clutch 120 below thedrum 30 and thebase plate 160 is coupled to the lower portion of thecabinet 10 by thesuspension members 21, load applied to thedrum 30 is transmitted to thesuspension members 21 through thebase plate 160, and thesuspension members 21 absorb vibration due to the load applied to thedrum 30. - In addition, since the
cabinet 10 has a two part structure including theouter frame 10 a and theinner frame 10 b, thecabinet 10 has sufficient strength to bear weights of thedrum 30, the clutch 120 and the drivingmotor 150 connected thereto by thesuspension members 21. However, the cabinet may have more than two part structure including a plurality of frames. - A damping
device 200 connects thebase plate 160 to thelower frame 18, and serves to absorb vibration generated in rotation of thedrum 30. The dampingdevice 200 includes a supportingbracket 210 coupled to the bottom surface of thebase plate 160, and a plurality ofdampers bracket 210 and the other end portion connected to thelower frame 18. - Both end portions of the
dampers bracket 210 and thelower bracket 18, so as to absorb vibration generated in rotation of thedrum 30. Accordingly, rotation of thedrum 30 is stabilized, and thedrum 30 is prevented from colliding with theinner frame 10 b. In order to effectively absorb vibration due to eccentric rotation of thedrum 30, thedampers drum 30. - The
inner frame 10 b may have, for example, a shape capable of decreasing vibration due to eccentric rotation of thedrum 30 by disturbing water flow formed between theinner frame 10 b and thedrum 30 when thedrum 30 is rotated. -
FIG. 5 is a perspective view showing an inner frame according to a first embodiment of the present disclosure, andFIG. 6 is a plan view showing the inner frame according to the first embodiment of the present disclosure. - As shown in
FIGS. 5 and 6 , theinner frame 10 b may have, for example, a shape capable of disturbing water flow formed in the space formed between thedrum 30 and theinner frame 10 b when thedrum 30 is rotated. - The
inner frame 10 b includes at least onefirst portion 111 spaced from thedrum 30 to define a first gap G1, at least onesecond portion 112 spaced from thedrum 30 to define a second gap G2, which is larger than the first gap G1, in order to disturb water flow formed in the first gap G1, andthird portions first portion 111 and thesecond portion 112 and slantedly connected to the same. Thesecond portion 112 and thethird portions second portion 112 form a waterflow disturbing part 110. - The water
flow disturbing part 110 may have, for example, a shape that a portion of theinner frame 10 b protrudes outwardly along the periphery of theinner frame 10 b so that a length of the gap between the inner surface of theinner frame 10 b and the outer circumferential surface of thedrum 30 different from a length of another gap. Therefore, the distance between theinner frame 10 b thedrum 30 may not be uniform. Thethird portions flow disturbing part 110 include a firstslanted surface 115 and a secondslanted surface 116, respectively, which are slanted with respect to the inner surface of theinner frame 10 b adjacent thereto in an outward direction of theinner frame 10 b. The waterflow disturbing part 110 may include at least oneedge portion drum 30. For Example, a plurality ofedge portions third portions first portion 111 and thesecond portion 112. As shown inFIG. 6 , theedge portions second portion 112 and thethird portion drum 30. Although the edge portions may be bent toward thedrum 30, the edge portions may be separately manufactured and assembled together with the second and third portions. - The water flow generated in the space formed between the
drum 30 and theinner frame 10 b is changed in speed and direction at thethird portions first portion 111 and thesecond portion 112. The firstslanted surface 115 and the secondslanted surface 116 of thethird portions drum 30 and theinner frame 10 b to aninner surface 112 a of thesecond portion 112 and theedge portions inner surface 112 a of thesecond portion 112 and theedge portions - When the space formed between the
drum 30 and theinner frame 10 b is regarded as a flow passage, the second gap G2 serves as a section in which a width of the flow passage is relatively large. Therefore, the speed of water flow is reduced, and the pressure is increased in the area of the second gap G2. That is, the force applied to thedrum 30 by water flow in the area of the second gap G2 is larger than the force in other areas. In addition, the force F applied to thedrum 30 by water flow in the area of the second gap G2 is directed toward the center of thedrum 30. - As shown in
FIG. 6 , a plurality of waterflow disturbing parts 110 may be radially arranged at an angle of approximately 90 degrees along the periphery of theinner frame 10 b. In this case, all of the forces F1, F2, F3 and F4 acting on thedrum 30 by water flow in each area of the second gap G2 are directed toward the center of thedrum 30. Accordingly, vibration due to eccentric rotation of thedrum 30 is reduced. As a non-limiting example, only four water follow disturbing parts are shown inFIG. 6 , however, a number of the water flow disturbing parts is not limited thereto. For example, the inner frame may include one or more water flow disturbing parts. - If laundry accumulates at one side portion of the
drum 30, thedrum 30 rotates eccentrically, and an area R (hereinafter referred to as a first area), in which the gap between the outer circumferential surface of thedrum 30 and the inner surface of theinner frame 10 b becomes smaller than the gap in the other areas, may be generated. Since the first area R serves as a section in which a width of the flow passage formed in the space formed between thedrum 30 and theinner frame 10 b becomes relatively small, the speed of water flow is increased, and the pressure is decreased. Accordingly, force Fr is applied to thedrum 30 in such a direction that the gap of the first area R is further reduced. At this time, the waterflow disturbing parts 110 located adjacent to both side portions of the first area R reduce vibration due to eccentric rotation of thedrum 30 in such a manner that a resultant force of the pressures F1 and F2 acting on thedrum 30 eliminates the force Fr acting on thedrum 30 in a direction of reducing the gap of the first area R. - As described above, the water
flow disturbing parts 110 disturb the water flow generated in the space formed between thedrum 30 and theinner frame 10 b, and reduce vibration due to eccentric rotation of thedrum 30 by eliminating the force acting on thedrum 30 in an eccentric direction of thedrum 30, thereby preventing collision between thedrum 30 and theinner frame 10 b in advance. - Hereinafter, other embodiments of the inner frame will be explained. The same parts are denoted by the same reference numerals and names and a duplicate description thereof will be omitted.
-
FIG. 7 is a perspective view showing an inner frame according to a second embodiment of the present disclosure, andFIG. 8 is a plan view showing the inner frame according to the second embodiment of the present disclosure. - As shown in
FIGS. 7 and 8 , aninner frame 210 b includes at least onevertical rib 211 which protrudes from the inner surface of the waterflow disturbing part 110 toward the outer circumferential surface of thedrum 30. - The
vertical rib 211 is formed longitudinally in an extension direction of the rotation center axis Lc of thedrum 30, and protrudes from the firstslanted surface 115 and the secondslanted surface 116 of thethird portions drum 30 by a predetermined length. - The water flow generated in the space formed between the
drum 30 and theinner frame 210 b is guided to thevertical rib 211 by the firstslanted surface 115 and the secondslanted surface 116 of thethird portions vertical rib 211, and the speed and direction of the water flow are changed. - As described above, the
vertical rib 211 disturbs the water flow generated in the space formed between thedrum 30 and theinner frame 210 b, and changes the magnitude and direction of the force of the water flow acting on thedrum 30, thereby reducing vibration due to eccentric rotation of thedrum 30. -
FIG. 9 is a perspective view showing an inner frame according to a third embodiment of the present disclosure, andFIG. 10 is a plan view showing the inner frame according to the third embodiment of the present disclosure. - As shown in
FIGS. 9 and 10 , aninner frame 310 b includes a connectingrib 311 to connect thevertical rib 211 to a bottom portion of theinner frame 310 b. - The connecting
rib 311 may have, for example, a shape that a width thereof is gradually decreased from the bottom portion to the top portion in an extension direction of the rotation center axis Lc of thedrum 30. - The water flow generated in the space formed between the
drum 30 and theinner frame 310 b is guided to the connectingrib 311 by the firstslanted surface 115 and the secondslanted surface 116 of thethird portions rib 311, and the speed and direction of the water flow are changed. The connectingrib 311 and thevertical rib 211 disturb the water flow generated in the space formed between thedrum 30 and theinner frame 310 b, and change the magnitude and direction of the force of the water flow acting on thedrum 30, thereby reducing vibration due to eccentric rotation of thedrum 30. -
FIG. 11 is a perspective view showing an inner frame according to a fourth embodiment of the present disclosure, andFIG. 12 is a plan view showing the inner frame according to the fourth embodiment of the present disclosure. - As shown in
FIGS. 11 and 12 , aninner frame 410 b includes at least one waterflow disturbing rib 411, which is formed in an extension direction of the rotation center axis Lc of thedrum 30 and may have, for example, a shape that a portion of the waterflow disturbing part 110 protrudes inwardly so that a length of the gap between the inner surface of the waterflow disturbing part 110 and the outer circumferential surface of thedrum 30 is different from a length of another gap. Therefore, the distance between theinner frame 410 b and thedrum 30 may not be uniform. - The water
flow disturbing rib 411 includes a steppedrib surface 422 which is provided at a lower portion of the waterflow disturbing part 110 and is stepped from the inner surface of the waterflow disturbing part 110, a first steppedsurface 431 to connect the inner surface of the waterflow disturbing part 110 to the steppedrib surface 422 in a longitudinal direction of the waterflow disturbing rib 411, and second steppedsurfaces 432 to connect the inner surface of theinner frame 410 b to the steppedrib surface 422 in a width direction of the waterflow disturbing rib 411. - The water
flow disturbing rib 411 is disposed between the firstslanted surface 115 and the secondslanted surface 116 of thethird portions drum 30 and theinner frame 410 b is guided to the waterflow disturbing rib 411 by the firstslanted surface 115 and the secondslanted surface 116. Accordingly, the water collides with the second steppedsurfaces 432, and the speed and direction of the water flow are changed. The first steppedsurface 431 changes the speed and direction of the water flow in a vertical direction of the waterflow disturbing rib 411. The waterflow disturbing rib 411 disturbs the water flow generated in the space formed between thedrum 30 and theinner frame 410 b using the first steppedsurface 431 and the second steppedsurfaces 432, and changes the magnitude and direction of the force of the water flow acting on thedrum 30, thereby reducing vibration due to eccentric rotation of thedrum 30. -
FIG. 13 is a perspective view showing an inner frame according to a fifth embodiment of the present disclosure, andFIG. 14 is a plan view showing the inner frame according to the fifth embodiment of the present disclosure. - As shown in
FIGS. 13 and 14 , aninner frame 510 b includes at least onehorizontal rib 511 which protrudes from an inner surface of theinner frame 510 b toward the outer circumferential surface of thedrum 30. - The
horizontal rib 511 has a ring shape formed in a peripheral direction of thedrum 30. Thehorizontal rib 511 disturbs the water flow generated in the space formed between thedrum 30 and theinner frame 510 b, and changes the magnitude and direction of the force of the water flow acting on thedrum 30, thereby reducing vibration due to eccentric rotation of thedrum 30. -
FIG. 15 is a perspective view showing an inner frame according to a sixth embodiment of the present disclosure, andFIG. 16 is a plan view showing the inner frame according to the sixth embodiment of the present disclosure. - As shown in
FIGS. 15 and 16 , aninner frame 610 b includes sawtooth-shaped waterflow disturbing parts 610 which are arranged spaced apart from each other along a periphery of theinner frame 610 b. - The water
flow disturbing parts 610 may have, for example, a shape that a portion of theinner frame 610 b protrudes outwardly along the periphery of theinner frame 610 b so that a length of the gap between the inner surface of theinner frame 610 b and the outer circumferential surface of thedrum 30 is different from a length of another gap. Therefore, the distance between theinner frame 610 b and thedrum 30 may not be uniform. Each of the waterflow disturbing parts 610 includes a firstslanted surface 615 and a secondslanted surface 616 which are slanted outwardly from theinner frame 610 b at slanted angles r1 and r2. The slanted angle r1 of the firstslanted surface 615 with respect to the inner surface of theinner frame 610 b and the slanted angle r2 of the secondslanted surface 616 with respect to the inner surface of theinner frame 610 b may be different from each other. - The water flow generated in the space formed between the
drum 30 and theinner frame 610 b collides with the firstslanted surface 615 and the secondslanted surface 616, and the speed and direction thereof are changed. The waterflow disturbing parts 610 disturb the water flow generated in the space formed between thedrum 30 and theinner frame 610 b using the firstslanted surface 615 and the secondslanted surface 616, and change the magnitude and direction of the force of the water flow acting on thedrum 30, thereby reducing vibration due to eccentric rotation of thedrum 30. - Although a few embodiments of the present disclosure have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.
Claims (23)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2012-0085147 | 2012-08-03 | ||
KR1020120085147A KR20140018681A (en) | 2012-08-03 | 2012-08-03 | Washing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140033772A1 true US20140033772A1 (en) | 2014-02-06 |
Family
ID=50024152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/955,634 Abandoned US20140033772A1 (en) | 2012-08-03 | 2013-07-31 | Washing machine |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140033772A1 (en) |
KR (1) | KR20140018681A (en) |
CN (1) | CN103572554A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170002504A1 (en) * | 2015-06-30 | 2017-01-05 | Lg Electronics Inc. | Laundry treatment apparatus |
USD776377S1 (en) * | 2015-06-19 | 2017-01-10 | Lg Electronics Inc. | Washing machine tub |
US10787763B2 (en) * | 2015-05-29 | 2020-09-29 | Qingdao Haier Drum Washing Machine Co., Ltd. | Washing machine and outer drum thereof |
JP2021527450A (en) * | 2018-02-27 | 2021-10-14 | 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. | Washing machine washing tub and its washing machine |
JP2021531065A (en) * | 2018-06-15 | 2021-11-18 | 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co., Ltd. | Washing machine |
US11225748B2 (en) * | 2015-08-25 | 2022-01-18 | Samsung Electronics Co., Ltd. | Laundry machine |
US11274389B2 (en) * | 2017-08-04 | 2022-03-15 | Samsung Electronics Co., Ltd. | Washing machine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101716449B1 (en) | 2015-12-23 | 2017-03-15 | 서정원 | Cervix tight device |
CN108570803A (en) * | 2017-03-10 | 2018-09-25 | 青岛海尔洗衣机有限公司 | A kind of washing machine |
JP2023140899A (en) * | 2022-03-23 | 2023-10-05 | 青島海爾洗衣机有限公司 | Drum-type washing machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110146357A1 (en) * | 2009-12-17 | 2011-06-23 | Alejandro Arzate Silva | Geometric Configuration of Tub |
-
2012
- 2012-08-03 KR KR1020120085147A patent/KR20140018681A/en not_active Application Discontinuation
-
2013
- 2013-07-31 US US13/955,634 patent/US20140033772A1/en not_active Abandoned
- 2013-08-02 CN CN201310334991.2A patent/CN103572554A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110146357A1 (en) * | 2009-12-17 | 2011-06-23 | Alejandro Arzate Silva | Geometric Configuration of Tub |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10787763B2 (en) * | 2015-05-29 | 2020-09-29 | Qingdao Haier Drum Washing Machine Co., Ltd. | Washing machine and outer drum thereof |
USD776377S1 (en) * | 2015-06-19 | 2017-01-10 | Lg Electronics Inc. | Washing machine tub |
US20170002504A1 (en) * | 2015-06-30 | 2017-01-05 | Lg Electronics Inc. | Laundry treatment apparatus |
US10487440B2 (en) * | 2015-06-30 | 2019-11-26 | Lg Electronics Inc. | Laundry treatment apparatus |
US11225748B2 (en) * | 2015-08-25 | 2022-01-18 | Samsung Electronics Co., Ltd. | Laundry machine |
US11274389B2 (en) * | 2017-08-04 | 2022-03-15 | Samsung Electronics Co., Ltd. | Washing machine |
JP2021527450A (en) * | 2018-02-27 | 2021-10-14 | 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. | Washing machine washing tub and its washing machine |
JP7138183B2 (en) | 2018-02-27 | 2022-09-15 | 青島海爾洗衣机有限公司 | washing machine |
JP2021531065A (en) * | 2018-06-15 | 2021-11-18 | 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co., Ltd. | Washing machine |
JP7274080B2 (en) | 2018-06-15 | 2023-05-16 | 海爾智家股▲フン▼有限公司 | washing machine |
Also Published As
Publication number | Publication date |
---|---|
CN103572554A (en) | 2014-02-12 |
KR20140018681A (en) | 2014-02-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20140033772A1 (en) | Washing machine | |
US9428853B2 (en) | Washing machine | |
EP2559799B1 (en) | Washing machine | |
US9328442B2 (en) | Washing machine | |
EP2435612B1 (en) | Laundry machine | |
US9353471B2 (en) | Washing machine having balancer | |
US20110094271A1 (en) | Pulsator device usable with washing machine and washing machine having the same | |
CA2748840C (en) | Laundry machine with tub support | |
US9481958B2 (en) | Washing machine | |
KR20110020364A (en) | Washing machine, inner tub of washing machine and assembling method thereof | |
KR102418217B1 (en) | Washing machine | |
KR20070115295A (en) | Washing machine having balancer | |
US20130269396A1 (en) | Washing machine having damping apparatus | |
US20230265593A1 (en) | Laundry treating apparatus | |
CN107429465B (en) | Washing machine | |
US10538871B2 (en) | Washing machine | |
US11566364B2 (en) | Laundry treating apparatus | |
KR101157835B1 (en) | Clothes Washing Machine Having Balancer | |
US20110047715A1 (en) | Method of controlling washing machine | |
KR100960067B1 (en) | Clothes Washing Machine Having Balancer | |
KR101362369B1 (en) | Clothes Washing Machine Having Balancer | |
US20030115913A1 (en) | Washing machine with an improved water tub | |
US20210277569A1 (en) | Laundry treating apparatus | |
KR101397104B1 (en) | Drum Type Washing Machine | |
KR20230122569A (en) | transit bolt Coupling portion for laundry machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG ELECTRONIC CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JUNG, DONG HA;KANG, DAE UK;KANG, JUNG HOON;AND OTHERS;SIGNING DATES FROM 20151013 TO 20151021;REEL/FRAME:036865/0501 |
|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD, KOREA, REPUBLIC OF Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE THIRD ASSIGNOR'S NAME PREVIOUSLY RECORDED AT REEL: 036865 FRAME: 0501. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNORS:JUNG, DONG HA;KANG, DAE UK;KANG, JEONG HOON;AND OTHERS;SIGNING DATES FROM 20151013 TO 20151021;REEL/FRAME:037023/0135 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |