EP1524355B1 - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
EP1524355B1
EP1524355B1 EP04291476.2A EP04291476A EP1524355B1 EP 1524355 B1 EP1524355 B1 EP 1524355B1 EP 04291476 A EP04291476 A EP 04291476A EP 1524355 B1 EP1524355 B1 EP 1524355B1
Authority
EP
European Patent Office
Prior art keywords
tub
net
washing machine
laundry
machine according
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.)
Expired - Lifetime
Application number
EP04291476.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1524355A2 (en
EP1524355A3 (en
Inventor
Jae Chul Lyu
Sang Kyu Im
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1524355A2 publication Critical patent/EP1524355A2/en
Publication of EP1524355A3 publication Critical patent/EP1524355A3/en
Application granted granted Critical
Publication of EP1524355B1 publication Critical patent/EP1524355B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • 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
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed
    • 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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention relates to a washing machine, and more particularly, to a washing machine that can improve the washing reliability thereof by preventing splash of water that may be caused by collision of the water with laundry during water supplying and permeating washing cycles.
  • the washing machine is an electric apparatus used for removing dirt from laundry such as clothes, sheets and the like using a chemical reaction of the detergent as well as a mechanical action of a pulsator.
  • General washing processes of the washing machine are comprised of an operation mode setting process automatically realized by detecting an amount and kind of laundry, a water supplying process for supplying water to a proper level in accordance with the amount and kind of laundry, and washing, rinsing and spinning processes that are controlled by a control part.
  • the washing machines can be classified into a variety of types according to their operating methods. For example, there are the following methods; a method for rotating a rotational/spinning tub by transmitting rotational power of a driving motor to a pulsator or spinning shaft via a power transmission belt and a pulley; a method for rotating a rotational/spinning tub in a different RPM during the respective washing and spinning processes by controlling an RPM of a BLDC (brushless direct current) motor without using a belt and pulley; a method having a different power transmission path for washing and spinning processes to rotate a pulsator at a low RPM during the washing machine and to rotate the pulsator and spinning tub at a high RPM; and a method for performing a permeating washing by injecting pumped water current into a rotational tub while rotating a rotational tub or pulsator in a direction at a high RPM.
  • BLDC brushless direct current
  • the present invention is directed to the method for performing a permeating washing by injecting pumped water current into a rotational tub while rotating a rotational tub or pulsator in a direction at a high RPM.
  • a washing machine employing the permeating washing method includes a pulsator integrally formed with a rotational tub.
  • the pulsator and rotational tub are rotated at a high speed by driving means.
  • the water in the rotational tub permeates the laundry by centrifugal force generated by the high RPM rotation of the rotational tub, in the course of which dirty is removed from the laundry.
  • the water permeating the laundry is directed to an outer tub through a plurality of holes formed on the rotational tub and ascended along an inner circumference of the outer tub, after which it falls into the rotational tub. While falling into the rotational tub, the water strikes the laundry to perform the washing.
  • JP10323482 which reveals a washing machine comprising :
  • the permeating type washing machine is designed to perform the washing through two stages of a first stage for allowing the water to permeate the laundry and a second stage for allowing the water to strike the laundry, improving the washing efficiency as compared with other types of washing machines.
  • the permeating type washing machine has a drawback in that the water may not be fully introduced into the rotational tub as it is splashed to other directions by colliding with the laundry. This will be generally incurred when the laundry is projected above a tub cover.
  • the laundry when a large amount of laundry is loaded in the rotational tub, the laundry may be projected above the tub cover.
  • a large-sized sheet, a pillow and the like are loaded in the rotational tub, a portion of the laundry may be projected above the tub cover.
  • the pillow since it contains air, it easily floats on the water. Therefore, the water being ascended along the outer tub and supplied to the rotational tub collides with the projected portion of the laundry, thereby splashing to an external side. This is called a "water-splashing phenomenon.”
  • the splashed water may pollute an outer floor around the washing machine and cause the short of washing water, making it difficult to perform the effective washing.
  • the present invention is directed to a washing machine that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide a washing machine that can prevent laundry from projecting above a tub cover to thereby prevent water from splashing.
  • Another object of the present invention is to provide a washing machine that can prevent water from splashing by detecting a projection of the laundry above a tub cover and controlling a washing cycle in response to the detected signal.
  • a washing machine comprising: an outer case; an outer tub disposed in the outer case to receive washing water; a rotational tub disposed in the outer tub and selectively rotatable; a pulsator rotating in the rotational tube to generate forced water current; a tub cover formed on an upper portion of the outer tub to guide the washing water to an inside of the rotational tub when the rotational tub and/or the pulsator rotate; a net formed inwardly extending from an inner end of the tub cover; and a motor for transmitting driving force to the rotational tub and/or the pulsator.
  • a washing machine comprising: a case; an outer tub disposed in the case to receive washing water; a rotational tub disposed in the outer tub and selectively rotatable; a pulsator rotating in the rotational tube to generate forced water current; a tub cover formed on an upper portion of the outer tub; a net formed inwardly extending from an inner circumference of the tub cover; an electrode sensor formed on an inner end portion of the net; a control part for receiving a signal from the electrode sensor when laundry contacts the electrode sensor and determining that the laundry rises; and a motor controlled by the control part to transmit driving force to the rotational tub and/or the pulsator.
  • a washing machine comprising: an outer tub for receiving washing water; a rotational tube rotatably installed in the outer tub; a tub cover coupled on an upper portion of the outer tub; a net formed inwardly extending from an inner circumference of the tub cover to prevent laundry from rising above the tub cover by the washing water; and a protecting cover for protecting an inner surface of the net.
  • a washing machine comprising: an outer tub; a tub cover formed on an upper portion of the outer tub; and a net formed inwardly extending from an inner circumference of the tub cover and having a plurality of passing holes, for preventing laundry from rising while allowing washing water to pass through the passing holes.
  • the laundry since the net is formed on the tub cover, the laundry cannot be projected above the tub cover, thereby preventing the water from splashing out during the water supplying and washing cycles. Therefore, any inadvertent accident that may be caused by the splashed water can be avoided.
  • the detecting member detects the fact to control the RPM of the driving motor, thereby preventing the splash of the water.
  • the protecting cover prevents the net from wearing, the laundry contacting the net is not easily damaged.
  • Fig. 1 shows a washing machine according to a first embodiment of the present invention.
  • a washing machine comprises an outer case 1 forming an outer appearance of the washing machine, an outer tub 2 disposed in the outer case 1 to receive washing water, a rotational tub 3 rotatably disposed in the outer tub 2, the rotational tub 3 being provided with a plurality of holes through which washing water can be directed to the outer tub 2, a pulsator 4 integrally formed on a center of the rotational tub 3 to rotate together with the rotational tub 3, a tub cover 5 coupled on an upper portion of the outer tub 2, a washing water supplying tube 8 on which a water supplying valve 9 is mounted to properly supply the washing water to the rotational tub 3, a washing water drain tube 6 on which a water drain valve 7 is mounted to properly drain the washing water, and a motor 13 for transmitting driving force to the rotational tub 3.
  • a net 11 for preventing the laundry from projecting above the tub cover 5 is formed on an inner circumference of the tub cover 5.
  • the washing machine further comprises a plurality of tub supports 12 for supporting the outer tub 2.
  • the outer tub 2 is formed in a cylindrical shape having an opened top through which the laundry is loaded in the rotational tub 3.
  • the rotational tub 3 is installed in the outer tub 2 and is rotated in clockwise and counterclockwise directions.
  • the washing water stored in the rotational tub 3 can be directed to the outer tub 2 through the holes 10 formed on the rotational tub 3.
  • the holes 10 functions to allow the water permeating the laundry to be drained during a spinning cycle and to allow for the circulation of water between the rotational tub 3 and the outer tub 2 during a permeating washing cycle.
  • the pulsator 4 is integrally formed on a bottom of the rotational tub 3 to rotate together with the rotational tub 3.
  • the tub cover 5 is coupled on the upper portion of the outer tub 2 to function to guide the water supplied from the rotational tub 3 to the outer tub 2 to be redirected into the rotational tub 3.
  • the net 11 formed on the inner circumference of the tub cover 5 functions to suppress the projection of the laundry above the tub cover 5.
  • the net 11 is disposed under the water supplying pipe 8 to further function to prevent the water from directly colliding with the laundry. That is, since the laundry can be elevated above the net 11, even when the water is supplied to right above the net 11, the washing water is not directly collide with the laundry. Accordingly, the water is not splashed out over the tub cover.
  • the pulsator 4 and the rotational tub 3 that are integrally formed rotate at a high RPM by the motor 13.
  • the washing water in the rotational tub 3 permeates the laundry to remove dirty from the laundry by the centrifugal force generated by the high RPM rotation of the rotational tub 3.
  • the water permeating the laundry is directed to the outer tub 2 through the holes 11 of the rotational tub 3.
  • the water directed to the outer tub 2 ascends along an inner circumference of the outer tub 2 by the centrifugal force. By the centrifugal force, the water stored in the rotational tub 3 rises in a U-shape as shown in the drawing.
  • the rise of the water is stopped by the tub cover 5 installed on the upper portion of the outer tub 2.
  • a portion where vertical and horizontal surfaces of the tub cover 5 meet each other can be formed in a gentle curve.
  • the water colliding with the tub cover 5 can be redirected into the rotational tub 3 to generate powerful water current colliding with the laundry, thereby removing dirt from the laundry.
  • the inventive washing machine includes a first washing process for allowing the water to permeate the laundry by the centrifugal force and a second washing process for allowing the water to collide with the laundry while falling into the rotational tub 3.
  • the first and second washing processes are repeatedly performed as a series of cycles.
  • the washing can be further performed as the pulsator 4 collides with the laundry while rotating.
  • Fig. 2 shows a bottom view of the tub cover depicted in Fig. 1 .
  • the tub cover 5 is provided at a bottom with a structure for effectively directing the water supplied from the outer tub 2 to the rotational tub 3.
  • the tub cover 5 is provided at a bottom with first directional ribs 151 and second directional ribs 152.
  • the first and second directional ribs 51 are formed in a symmetrical arrangement.
  • the rotational tub 3 is designed to rotate clockwise and counterclockwise, it is preferable that the first and second directional ribs 152 are formed to be inclined in an opposite direction to each other.
  • the tub cover 5 is further provided with a water falling guide rib 55 for directing the water converted in its direction by the first directional ribs 51 toward the laundry loaded in the rotational tub 3.
  • the water falling guide rib 55 is formed along an inner circumference of the tub cover 5.
  • the tub cover 5 is further provided at a bottom with a dispersion preventing ribs 54 for preventing the water directed to the first directional ribs 151 and the falling guide rib 55 from dispersing.
  • the tub cover 5 is further provided with first holes 56.
  • the first holes 56 are formed on portions where the first directional ribs 151 meet the falling guide rib 55.
  • the tub cover 5 is further provided with second holes 57.
  • the second holes 57 are formed on portions where the second directional ribs 152 meet the falling guide rib 55.
  • the tub cover 5 may be further provided with a plurality of reinforcing ribs connecting the first and second directional ribs 151 and 152.
  • the net 11 is formed under the water supplying tube to prevent the laundry from projecting above the tub cover 5.
  • the net 11 is disposed in an inside area of the tub cover 5.
  • An opened space 14 is defined between the net 11 and the tub cover 5 so as to prevent water from overflowing the net 11 even when a large amount of water is supplied in a moment. That is, during the water supplying cycle or the permeating washing cycle, even when a large amount of water is supplied toward the net 11 at a moment to overflow the net, the water does not overflow the tub cover 5 but falls into the outer tub 2 through the opened space 14.
  • FIG. 3 shows an enlarged view of a major portion of the washing machine depicted in Fig. 1 .
  • FIG. 3 there are shown the rotational tub 3 and the tub cover 5 formed on the upper portion of the rotational tub 3.
  • the net 11 is formed across an opening of the tub cover 5.
  • the opened space 14 is defined between the net 11 and the inner circumference of the tub cover 5 to prevent the washing water from overflowing.
  • the net 11 is designed to allow the water to pass through a plurality of meshes formed on the net 11.
  • the net 11 suppresses the laundry not to project above the tub cover 5.
  • the net 11 is preferably disposed right under the water supplying tube 8.
  • the net 11 is integrally formed with the tub cover 5, the present invention is not limited thereto.
  • the net 11 can be formed as a separated component and assembled with any one of the tub cover 5, the rotational tub 3 and the outer tub 2. However, it is most preferable that the net 11 is assembled on the inner circumference of the tub cover 5 so that the net 11 can be disposed right under the water supplying tube 8.
  • each mesh of the net 11 is small enough for the laundry not to project above the tub cover but large enough for the water not to splash out.
  • Fig. 4 shows a washing machine according to a second embodiment of the present invention.
  • This embodiment is identical to the first embodiment except for a structure of the net.
  • a net 21 of this embodiment is also formed extending from an inner circumference of the tub cover 5 and is disposed under the water supplying tube 8.
  • Each mesh of the net 21 is relatively large-sized as compared with that of the first embodiment. Therefore, the washing water is prevented from overflowing without the opened space (see 14 of Fig. 3 ) proposed in the first embodiment.
  • Fig. 5 shows a washing machine according to a third embodiment of the present invention.
  • this embodiment is identical to the first embodiment except for a structure of the net.
  • a net of the embodiment is designed such that meshes are defined by plurality of bars arranged in an identical direction, that is, one of lateral or longitudinal directions while the net of the first embodiment is designed such that the meshes are formed in a matrix shape by a plurality of bars arranged in both lateral and longitudinal directions.
  • An opened space 34 is also provided to prevent the overflow of the water.
  • Fig. 6 shows a washing machine according to a fourth embodiment of the present invention.
  • the washing machine of this embodiment is provided with a rotational tub 3, a net 41 and an opened space 44 like the washing machine of the first embodiment. Further, the washing machine includes first and second electrode sensors 42 and 43 formed on a net 41. When the laundry contacts the first and second electrode sensors 42 and 43, the first and second electrode sensors 42 and 43 are electrically connected to each other, by which it is detected that the laundry ascends to a level of the net 41. When the ascending of the laundry to the level of the net 41 is detected, the RPM of the rotational tub 3 is lowered or the rotation of the rotational tub 3 is temporarily stopped, thereby preventing the water from splashing out.
  • the first and second electrode sensors 42 and 43 may be electrically connected to each other when the washing water irregularly rises or fluctuates during the water supplying or washing cycle or when the laundry contacts the longitudinal sides of the net 41.
  • the electrode sensors 42 and 43 are designed not to detect a small amount of washing water contacting a small area of the net 41 but to detect only the washing water continuously contacting a large area of the net 41. That is, the electrode sensors 42 and 43 detects the laundry when the laundry projected above the tub cover 5 contacts an enough large portion of the longitudinal sides of the net 41 for a predetermined time enough to change a resistance value.
  • the electrode sensors 42 and 43 are provided to prevent the washing water from splashing out by detecting the laundry projected above the tub cover 5.
  • the washing water collides with the laundry, not splashing out.
  • the washing water collies with the laundry ascending above a predetermined level. In this case, since the water may splash out, the ascending of the laundry should be detected so that the RPM of the washing machine can controlled to prevent the splash of the water.
  • Fig. 7 shows a block diagram illustrating the operation of the fourth embodiment.
  • a detecting part 45 defined by the electrode sensors 42 and 43 formed on one of the longitudinal sides is provided.
  • a detecting signal generated by the detecting part 45 is transmitted to a control part 46.
  • the control part 46 determines if the laundry ascends above a predetermined level in accordance with the detecting signal transmitted from the detecting part 45.
  • a motor driving part 47 lowers the RPM or stops the washing cycle.
  • the detecting part 45 generates a detecting signal and transmits the same to the control part 46.
  • the control part 46 determines if the laundry ascends above a predetermined level in accordance with the detecting signal transmitted from the detecting part 45. When it is determined that the laundry ascends above the predetermined level, the control part 46 controls the motor driving part 47 such that it can lower the RPM of the motor or stops the rotation of the motor, thereby preventing the splash of the water.
  • Fig. 8 shows a state where the laundry contacts the longitudinal side of the net.
  • the laundry 48 contacts the sensors 42 and 43 formed on the longitudinal side of the net 41 so that a predetermined detecting signal is transmitted to the control part.
  • the control part controls the driving part in response to the detecting sensor such that the rotational force of the washing machine can be reduced, thereby preventing the splash of the water.
  • the control part may stop the rotation of the rotational tub 3 in order for a user to rearrange the laundry not to be projected above the tub cover 5.
  • the friction with the laundry may easily wear an inner surface of the net 41. That is, since the inner surface of the net 41 rubs with the laundry during the washing cycle, it is worn as the washing machine is used for a long time. When the inner surface of the net 41 is worn, it becomes rough, causing damage of the laundry.
  • the surface of the net 41 is preferably coated with a metal material to have a smooth metal surface as protecting means.
  • the protecting means may be a metal tape or be specially prepared and assembled on the net 41.
  • This embodiment is identical to the fourth embodiment except that a structure for preventing damage of the net as well as the laundry is further provided.
  • Fig. 9 is a perspective view of a tub cover of a washing machine according to a fifth embodiment of the present invention
  • Fig. 10 is a sectional view taken along the line A-A' of Fig. 9 .
  • a net 51 is formed on a portion of an inner circumference of the tub cover.
  • a protecting cover 60 for protecting the inner end of the net 51 covers an inner end of the net 51, which frequently contacts the laundry.
  • the protecting cover 60 is snap-fitted on the inner end 52 of the net 51. That is, the protecting cover 60 is fitted in the inner end 52 while being elastically deformed. Therefore, the protecting cover 60 is preferably formed of an elastic material.
  • the protecting cover 60 may be coupled on thee inner end 52 by a screw or a hook member. In this case, the screw or the hook member may however deteriorates an appearance and cause the laundry from being damaged during the washing cycle while deteriorating the outer appearance. Therefore, it is preferable that the protecting cover 60 is coupled on the inner end 52 through a snap fitting.
  • the protecting cover 60 includes an upper fixing portion 61 for coupling on an upper end portion of the inner end 52, a coupling portion 62 for coupling on a lower end portion of the inner end 52, and an insertion end portion 63 gently curved to allow the coupling portion 62 to be easily inserted in the lower end portion 52.
  • the protecting cover 60 is formed of the elastic material such as an elastic plastic, a stainless steel, and an elastic rubber.
  • the protecting cover 60 When the protecting cover 60 is formed of the elastic plastic or the elastic rubber, it may be worn. In this case, the elastic cover is replaced with a new one. Therefore, it is most preferable that the stainless steel is used for the protecting cover.
  • the inner end 52 of the net 51 includes a first hook jaw 53 on which the fixing portion 61 is coupled, a second hook jaw 54 on which the coupling portion 62 is coupled, and a third hook jaw 55 formed adjacent to the first hook jaw 53 to prevent the protecting cover 60 from being separated.
  • the fixing portion 61 is first coupled on the first hook jaw 53, and the coupling portion 62 is coupled on the second hook jaw 54 through the snap fitting. At this point, since the insertion end portion 63 is gently curved, the coupling portion 62 is elastically deformed and fitted on the second hook jaw 53. In addition, the third hook jaw 55 supports the fixing portion 61 not to be separated from the first hook portion 53.
  • Fig. 11 is a perspective view of the protecting cover shown in Fig. 9 .
  • the fixing portion 61 bent in a round shape is formed at an upper end portion of the protecting cover 60 so as to be fixed to the upper side of the inner end 52 of the net 51.
  • the coupling portion 62 that can be elastically deformed is formed so as to be fixed to the lower side of the inner end 52 of the net 51.
  • the insertion end portion 63 is gently curved to allow the coupling portion 62 to be easily inserted in the lower end portion 52. Also, the insertion end portion 63 prevents the occurrence of scratch when the protecting cover 60 is inserted into the net 51.
  • the sixth embodiment is identical to the fifth embodiment in many parts except that the structure of the inner end portion of the net. In other words, the construction of the inner end portion of the net is changed to prevent foreign substances from being accumulated.
  • Fig. 12 is a sectional view of the net for illustrating that the protecting cover is fixed to the inner end portion of the net according to a sixth embodiment of the present invention.
  • a first hook jaw 73 is formed on an upper portion of an inner end portion 72 of a net 71 and a second hook jaw 74 is formed on a lower portion of the inner end portion 72 of the net 71.
  • a protecting cover 60 has an identical construction to that of the fifth embodiment.
  • the first hook jaw 73 is positioned such that a fixing portion is hooked on the first hook jaw 73 and then a coupling portion 62 is coupled to the second hook jaw 74 in a snap-fitting way.
  • the laundry since the net is formed on the tub cover, the laundry cannot be projected above the tub cover, thereby preventing the water from splashing out during the water supplying and washing cycles. Therefore, any inadvertent accident that may be caused by the splashed water can be avoided.
  • the detecting member detects the fact to control the RPM of the driving motor, thereby preventing the splash of the water.
  • the protecting cover prevents the net from wearing, the laundry contacting the net is not easily damaged.
  • each corners of the protecting cover is gently curved to prevent the laundry from being damaged.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP04291476.2A 2003-10-17 2004-06-11 Washing machine Expired - Lifetime EP1524355B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2003072630 2003-10-17
KR1020030072630A KR100720574B1 (ko) 2003-10-17 2003-10-17 세탁기

Publications (3)

Publication Number Publication Date
EP1524355A2 EP1524355A2 (en) 2005-04-20
EP1524355A3 EP1524355A3 (en) 2006-12-13
EP1524355B1 true EP1524355B1 (en) 2016-08-31

Family

ID=34374294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04291476.2A Expired - Lifetime EP1524355B1 (en) 2003-10-17 2004-06-11 Washing machine

Country Status (7)

Country Link
US (1) US20050081574A1 (ko)
EP (1) EP1524355B1 (ko)
JP (1) JP2005118535A (ko)
KR (1) KR100720574B1 (ko)
CN (1) CN1609330B (ko)
AU (1) AU2004201876B2 (ko)
ES (1) ES2597836T3 (ko)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1441056A1 (en) * 2003-01-22 2004-07-28 Whirlpool Corporation Washing machine
JP4713392B2 (ja) * 2006-04-19 2011-06-29 日立アプライアンス株式会社 洗濯機
US8490440B2 (en) * 2007-05-07 2013-07-23 Whirlpool Corporation Timing control and timed wash cycle for an automatic washer
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ES2597836T3 (es) 2017-01-23
EP1524355A2 (en) 2005-04-20
EP1524355A3 (en) 2006-12-13
AU2004201876A1 (en) 2005-05-05
CN1609330B (zh) 2010-06-16
JP2005118535A (ja) 2005-05-12
US20050081574A1 (en) 2005-04-21
KR100720574B1 (ko) 2007-05-22
KR20050037182A (ko) 2005-04-21
AU2004201876B2 (en) 2005-12-08
CN1609330A (zh) 2005-04-27

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