EP1505191A1 - Waschmaschine - Google Patents
Waschmaschine Download PDFInfo
- Publication number
- EP1505191A1 EP1505191A1 EP04011677A EP04011677A EP1505191A1 EP 1505191 A1 EP1505191 A1 EP 1505191A1 EP 04011677 A EP04011677 A EP 04011677A EP 04011677 A EP04011677 A EP 04011677A EP 1505191 A1 EP1505191 A1 EP 1505191A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- washing water
- tub
- water
- washing
- drum
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
- B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
- B05B1/267—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being deflected in determined directions
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/266—Gaskets mounted between tub and casing around the loading opening
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/024—Devices for adding soap or other washing agents mounted on the agitator or the rotating drum; Free body dispensers
-
- 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
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/088—Liquid supply arrangements
Definitions
- the present invention relates to a washing machine, and more particularly to a washing machine provided with an improved nozzle for spraying washing water into a drum at a broadened angle.
- washing machines are apparatuses for removing contaminants from laundry by the action of detergent and water.
- washing machines are divided into agitator-type washing machines, pulsator-type washing machines, and drum-type washing machines.
- the agitator-type washing machine washes laundry placed therein by rotating a rod rising from a central area of a washing tank in both directions.
- the pulsator-type washing machine washes laundry placed therein by means of friction between the laundry and a water current generated by rotating a pulsator having a disk shape installed on a lower portion of a washing tank in both directions.
- the drum-type washing machine washes laundry placed in a drum by rotating the drum including a plurality of lifters protruded from an inner surface thereof and containing water, detergent and the laundry.
- the above-described conventional washing machines such as the agitator-type washing machines, the pulsator-type washing machines, and the drum-type washing machines, are provided with various subsidiary devices for increasing washing efficiency.
- a washing water-circulating device is installed in the washing machines.
- the washing water-circulating device causes water containing detergent or pure and clean water without detergent (hereinafter, referred to as "washing water") to soak into the laundry placed in the drum, thus reducing a quantity of the washing water. Further, the washing water-circulating device increases friction between the laundry and a current of the washing water, thus increasing washing capacity. Accordingly, the washing water-circulating device serves to pump the washing water placed in the lower portion of a tub and to spray the pumped washing water into the drum.
- the washing water-circulating device includes a nozzle for spraying circulating washing water into the drum.
- the circulating washing water sprayed from the nozzle is required to be directed to the inside of the drum at a broadened angle.
- the present invention has been made in view of the above problems, and it is an object of the present invention to provide a washing machine provided with a nozzle for spraying washing water into a drum at a broadened angle, thus improving washing efficiency and rinsing efficiency, and reducing a quantity of the washing water consumed.
- a washing machine comprising a tub for containing washing water, a drum rotatably arranged in the tub for accommodating laundry, a motor for rotating the drum, and a washing water-circulating device for circulating the washing water so that the washing water in the tub is sprayed into the drum, wherein the washing water-circulating device includes a nozzle having a vertical water-spraying angle in the range of 30° to 40°.
- a washing machine comprising a tub for containing washing water, a drum rotatably arranged in the tub for accommodating laundry, a motor for rotating the drum, and a washing water-circulating device for circulating the washing water so that the washing water in the tub is sprayed into the drum, wherein the washing water-circulating device includes a nozzle having a horizontal water-spraying angle in the range of 110° to 130°.
- a washing machine comprising a tub for containing washing water, a drum rotatably arranged in the tub for accommodating laundry, a motor for rotating the drum, and a washing water-circulating device for circulating the washing water so that the washing water in the tub is sprayed into the drum, wherein the washing water-circulating device includes a nozzle having different right and left vertical water-spraying angles.
- a washing machine comprising a tub for containing washing water, a drum rotatably arranged in the tub for accommodating laundry, a motor for rotating the drum, and a washing water-circulating device for circulating the washing water so that the washing water in the tub is sprayed into the drum, wherein the washing water-circulating device includes a nozzle having different right and left horizontal water-spraying angles.
- Fig. 1 is a partially exploded perspective view of an embodiment of a washing machine in accordance with the present invention.
- Fig. 2 is a longitudinal-sectional view of the embodiment of the washing machine in accordance with the present invention.
- the washing machine of the present invention comprises a casing 2, a tub 10 located in the casing 2 so that the tub 10 is stably supported by the casing 2 for containing washing water (w), a drum 20 rotatably arranged in the tub 10 for accommodating laundry (m), and a driving motor 30 for rotating the drum 20.
- the casing 2 includes a base 3 provided with a damper 3a connected to the tub 10, a cabinet 4 located on the base 3 for surrounding both side surfaces and a rear surface of the tub 10 and provided with a spring 4a connected thereto for suspending the tub 10 therewith, a cabinet cover 5 arranged in front of the cabinet 4 for covering a front surface of the cabinet 4 and provided with an entrance hole 5a formed at a central area thereof for placing the laundry (m) into the tub 10 therethrough, a top plate 6 for covering an upper surface of the cabinet 4, and a control panel 7 installed on an upper surface of the cabinet cover 5 or the top plate 6 for controlling the washing machine.
- a door 9 for opening and closing the entrance hole 5a is installed on the cabinet cover 5.
- the door 9 includes a door frame 9c provided with an opening at a central area thereof and a locking unit 9b locked with the cabinet cover 5 and provided with one side connected to the cabinet cover 5 by a hinge 9a, and a door glass 9d installed at the opening of the door frame 9c and formed in a convex surface directed to the drum 20.
- the tub 10 includes an opening 12 for allowing the laundry (m) to be put into the drum 20 therethrough, and a gasket 14 provided with a sealing portion, contacting a rear surface of the door frame 9c or the door glass 9d, around the opening 12, thereby preventing the washing water (w) from leaking from the tub 10 and the laundry (m) from being separated from the tub 10.
- the drum 20 includes an entrance hole 21 formed through a front surface thereof for placing the laundry (m) into the drum 20 therethrough, a plurality of through holes 22 formed through a side surface and a rear surface thereof for allowing the washing water (w) to pass through the drum 20 therethrough, and lifters 23 formed on an inner circumference thereof for lifting and dropping the laundry (m).
- a lower portion of the drum 20 is submerged in the washing water (w) in the tub 10.
- the driving motor 30 is installed on the rear surface of the tub 10.
- a rotary shaft 31 of the driving motor 30, which penetrates the rear surface of the tub 10, is supported by the tub 10 and connected to the rear surface of the drum 20.
- a water supply unit is provided on the tub 10 for supplying the washing water (w) into the tub 10.
- the water supply unit includes a water supply valve 41 connected to an external hose 40 for intermittently controlling clean water (w) supplied from the external hose 40, a water supply hose 42 for guiding the water passed through the water supply valve 41, a detergent box 43 including a detergent storing space, a water supply passage and an outlet for causing the water supplied from the water supply hose 42 to be mixed with detergent stored by the detergent storing space and then to be discharged therefrom, and a water supply bellows tube 44 having one end connected to the outlet of the detergent box 43 and the other end connected to an inlet formed at a designated position of the upper surface of the tub 10 for guiding the water or detergent discharged from the detergent box 43 into the tub 10.
- a water supply valve 41 connected to an external hose 40 for intermittently controlling clean water (w) supplied from the external hose 40
- a water supply hose 42 for guiding the water passed through the water supply valve 41
- a detergent box 43 including a detergent storing space, a water supply passage and an outlet for causing the water supplied
- a drainage hole 15 is formed through the lower surface of the tub 10 for discharging the washing water (w) to the outside therethrough, and is connected to a drainage bellows tube 48 for guiding the washing water (w) discharged from the tub 10.
- a pump unit 50 for pumping out or re-circulating into the drum 20 the washing water (w) discharged from the tub 10 through the drainage hole 15 and the drainage bellows tube 48, is connected to the drainage bellows tube 48.
- the pump unit 50 includes a filter case 52, a drainage pump 54, and a circulating pump 56.
- the filter case 52 includes a connector connected to the drainage bellows tube 48, a passage, for passing the washing water (w) therethrough, connected to the drainage pump 54 and the circulating pump 56, and a filter for filtering foreign substances, such as waste pieces of thread, from the washing water (w).
- a drainage hose 55 extended toward the outside of the casing 2 is connected to the drainage pump 54, and serves to discharge the washing water (w) introduced into the pump case 52 to the outside in a drain mode of the washing machine.
- a circulating hose 60 extended toward the upper end of the gasket 14 is connected to the circulating pump 56, and serves to pump out the washing water (w) introduced into the filter case 52 in a wash or rinse mode of the washing machine.
- One end of the circulating hose 60 is adjacent to the upper end of the gasket 14.
- a spraying unit provided with a nozzle for spraying the guided washing water (w) into the drum 20 is connected to the circulating hose 60.
- Fig. 3 is an enlarged longitudinal-sectional view of a first embodiment of a nozzle of the washing machine in accordance with the present invention.
- Fig. 4 is a partially exploded sectional view of the first embodiment of the nozzle, through which washing water is sprayed into a drum, in accordance with the present invention.
- the gasket 14 includes a cylindrical rib 14b, and a through hole 14a formed through the cylindrical rib 14b.
- the spraying unit serves to spray the washing water pumped through the circulating hose 60 from the inside of the gasket 14 to the inside of the drum 20, and includes a cylinder 72 protruded from the upper end of the cylindrical rib 14b, connected to the circulating hose 60 and provided with a through hole 72a, located in the through hole 14a and the cylindrical rib 14b for passing the washing water (w) therethrough, and a nozzle 74 provided on a lower end of the cylinder 72 for spraying the washing water passed through the cylinder 72 into the drum 20 at a broadened angle.
- a protrusion 72b formed in a hook structure, is formed on an outer circumference of the cylinder 72 and caught by an upper portion of the cylindrical rib 14b, thereby preventing the cylinder 72 from coming out from the lower end of the gasket 14 due to a dead weight of the cylinder 72, a water flow and external vibration.
- the cylinder 72 is pushed into the gasket 14 through the through hole 14a.
- the nozzle 74 is formed integrally with the lower end of the cylinder 72, and located on the upper portion of the inside of the gasket 14.
- the nozzle 74 has a vertical spraying angle ( ⁇ ) in the range of 30° to 40° so that the washing water (w) sprayed from the nozzle 74 is directed to the lower portion of the rear surface 26 or the circumferential portion 28 of the drum 20.
- the vertical spraying angle ( ⁇ ) of the nozzle 74 is excessively small, the sprayed washing water (w) is directed only to the upper portion of the rear surface 26 of the drum 20. In case that the vertical spraying angle ( ⁇ ) of the nozzle 74 is excessively large, the sprayed washing water (w) is directed only to the front part of the circumferential portion 28 of the drum 20. Accordingly, the vertical spraying angle ( ⁇ ) of the nozzle 74 is limited to 30° to 40° so that the sprayed washing water (w) is uniformly directed into the drum 20.
- a rear surface of the nozzle 74 facing the rear surface 26 of the drum 20 is opened, and both side surfaces of the nozzle 74 are partially opened.
- the nozzle 74 includes an upper horizontal portion 75 protruded horizontally from the lower end of the cylinder 72, a front vertical portion 76 protruded perpendicularly from the upper horizontal portion 75, and a lower sloping portion 77 extended from a lower end of the front vertical portion 76 and located below the through hole 72a.
- the front vertical portion 76 is bent from a front end of the upper horizontal portion 75.
- the lower sloping portion 77 has an excessively small nozzle height (H), which is a distance from the lower end of the through hole 72a to the lower sloping portion 77, it is difficult to efficiently spray the washing water (w).
- the lower sloping portion 77 has an excessively large nozzle height (H)
- the lower sloping portion 77 interferes with the door glass 9d and a spraying length of the washing water (w) directed to the inside of the drum 20 is reduced.
- the lower sloping portion 77 has a nozzle height (H) in the range of 2mm to 4mm.
- the lower sloping portion 77 has a length (L) limited to the range of 20mm to 25mm so as to sufficiently guide the washing water (w) and prevent the interference with the door glass 9d located around the lower sloping portion 77.
- the through hole 72a of the cylinder 72 has a reduced diameter (d)
- the water spraying length of the lower sloping portion 77 is increased and a passage loss is increased.
- the vertical spraying angle ( ⁇ ) of the nozzle 74 is in the range of 30° to 40°
- the diameter (d) of the through hole 72a of the cylinder 70 is 0.4 to 0.65 times as large as the diameter (D) of the nozzle 74.
- the laundry (m) is put into drum 20, and the door 9 is closed into the cabinet cover 5. Thereafter, the washing machine is operated. Then, the lower portion of the tub 10, the drainage bellows tube 48 and the filter case 52 are filled with the washing water (w) supplied from the water supply bellows tube 44, and the laundry (m) in the drum 20 is submerged in the washing water (w) introduced thereinto through the through holes 22.
- the driving motor 30 is operated so as to rotate the drum 20, and the laundry (m) in the drum 20 is lifted and then dropped by the lifters 23, thereby being cleaned by the action of the detergent and the water.
- the circulating pump 56 is operated so as to pump out the washing water (w) within the filter case 52.
- the washing water (w) pumped by the circulating pump 56 is guided to the upper portion of the gasket 14 through the circulating hose 60, passes through the through hole 72a of the cylinder 72, and is then dropped.
- the washing water (w) dropped through the through hole 72a of the cylinder 72 collides with the upper surface of the lower sloping portion 77, and is then sprayed onto the lower portion of the rear surface 26 or the circumferential portion 28 of the drum 20, thereby uniformly soaking the laundry (m).
- the laundry (m) is lifted up to the upper portion of the inside of the drum 20, and is then dropped.
- a part of the laundry (m) is lifted up to a middle portion of the inside of the drum 20 and is then dropped, and the washing water (w) sprayed by the nozzle 72 is directed broadly to the lower portion of the rear surface 26 or the circumferential portion 28 of the drum 20. Therefore, the washing water (w) directly soaks the part of the laundry (m), which is lifted up to the middle portion of the inside of the drum 20 and is then dropped.
- the washing machine of the present invention reduces a quantity of the supplied washing water (w) at the same washing capacity and improves washing efficiency at the same quantity of the washing water (w) consumed.
- contaminated water remains in the lower portion of the tub 10, the drainage bellows tube 48 and the filter case 52. Such contaminated water is discharged to the outside through the drainage hose 55 when the drainage pump 54 is operated.
- the washing machine is operated in a rinse mode, in which clean washing water (w) is supplied into the tub 10 so as to rinse soap bubbles out of the laundry (m).
- a rinse mode in which clean washing water (w) is supplied into the tub 10 so as to rinse soap bubbles out of the laundry (m).
- the washing water (w) supplied from the water supply bellows tube 44 is contained in the lower portion of the tub 10, the drainage bellows tube 48 and the filter case 52, the motor 30 is driven so as to rotate the drum 20 for rinsing the laundry (w), and the laundry (m) in the drum 20 is lifted by the lifters 23 and is then dropped. Thereby, soap bubbles are rinsed out of the laundry (m) by the washing water (w).
- the circulating pump 56 is operated in the same manner as in the wash mode of the washing machine, and the washing water (w) passed through the nozzle 74 is broadly sprayed onto the lower portion of the rear surface 26 or the circumferential portion 28 of the drum 20 at a vertical spraying angle ( ⁇ ) of the lower sloping portion 77 in the range of 30° to 40°, thus uniformly soaking the laundry (m).
- the washing machine of the present invention reduces a quantity of the supplied washing water (w) at the same rinsing capacity and improves rinsing efficiency at the same quantity of the washing water (w).
- the rinsing efficiency is directly proportional to the quantity of the washing water and the square of the number of times of rinse mode, it is preferable to repeat the rinse mode several times using a small quantity of the washing water (w) in order to obtain the same rinsing capacity. Since the washing water (w) sprayed by the nozzle 74 uniformly contacts the laundry (m), the number of times, that the rinse mode is performed, is increased in order to reduce the quantity of the washing water (w) while maintaining the rinsing capacity.
- contaminated water remains in the lower portion of the tub 10, the drainage bellows tube 48 and the filter case 52. Such contaminated water is discharged to the outside through the drainage hose 55 when the drainage pump 54 is operated.
- the drum 20 is rotated at a high speed so that the laundry (m) is centrifugally dehydrated.
- Fig. 5 is a cross-sectional view of a second embodiment of the nozzle of the washing machine in accordance with the present invention.
- the nozzle 74 of this embodiment has a horizontal spraying angle in the range of 110° to 130° so that the sprayed washing water is not spread over sides of the nozzle 74 and is directed concentrically to the inside of the drum 20.
- Other elements, such as the circulating device, in the second embodiment except for the nozzle 74 are substantially the same as those in the first embodiment and thus denoted by the same reference numerals even though they are depicted in different drawings. Thus, a detailed description of such elements in the second embodiment will be omitted because it is considered to be unnecessary.
- the washing water (w) sprayed by the nozzle 74 tends to gradually get bent inwardly.
- the nozzle 74 has an opened rear surface and an angle between both side surfaces of the nozzle 74 in the range of 130° to 140° in order to obtain the horizontal spraying angle of the nozzle 74 in the range of 110° to 130°.
- the nozzle 74 includes the upper horizontal portion protruded horizontally from the lower end of the cylinder, the front vertical portion 76 protruded perpendicularly from the upper horizontal portion, the lower sloping portion 77 extended from the lower end of the front vertical portion 76, and side vertical portions 78 and 79 located between both sides of the upper horizontal portion and the lower sloping portion 77 at a horizontal sloping angle in the range of 130° to 140°.
- the washing water (w) colliding with the upper surface of the lower sloping portion 77 is collected by the side vertical portions 78 and 79, and concentrically sprayed into the drum 20.
- Fig. 6 is a rear view of a third embodiment of the nozzle of the washing machine in accordance with the present invention.
- Fig. 7 is a partially exploded sectional view of the third embodiment of the nozzle, through which washing water is sprayed into the drum, in accordance with the present invention.
- the nozzle 74 of this embodiment has left and right vertical spraying angles having different degrees.
- Other elements, such as the circulating device, in the third embodiment except for the nozzle 74 are substantially the same as those in the first or second embodiment and thus denoted by the same reference numerals even though they are depicted in different drawings. Thus, a detailed description of such elements in the third embodiment will be omitted because it is considered to be unnecessary.
- the nozzle 74 includes the upper horizontal portion 75 protruded horizontally from the lower end of the cylinder 72, the front vertical portion 76 protruded perpendicularly from the upper horizontal portion 75, and the lower sloping portion 77 extended from the lower end of the front vertical portion 76 and located to be opposite to the through hole of the cylinder 72.
- one side of the lower sloping portion 77 has a vertical spraying angle in the range of 5° to 20°
- the other side of the lower sloping portion 77 has a vertical spraying angle in the range of 30° to 50°.
- the washing water collides with the upper surface of the lower sloping portion 77 of the nozzle 74, and is then sprayed from both sides of the lower sloping portion 77 at different vertical spraying angles.
- a part of the washing water guided to one portion 77a, having a larger vertical spraying angle, of the nozzle 74 is sprayed onto the circumferential portion 28 of the drum 20, and the other part of the washing water guided to the other portion 77b, having a smaller vertical spraying angle, of the nozzle 74 is sprayed onto the rear surface 26 of the drum 20.
- Fig. 8 is a cross-sectional view of a fourth embodiment of the nozzle of the washing machine in accordance with the present invention.
- the nozzle 74 of this embodiment has horizontal spraying angles ( ⁇ 1, ⁇ 2) of different degrees.
- Other elements, such as the circulating device, in the fourth embodiment except for the nozzle 74 are substantially the same as those in the first, second or third embodiment and thus denoted by the same reference numerals even though they are depicted in different drawings. Thus, a detailed description of such elements in the fourth embodiment will be omitted because it is considered to be unnecessary.
- the nozzle 74 includes the upper horizontal portion protruded horizontally from the lower end of the cylinder, the front vertical portion 76 protruded perpendicularly from the upper horizontal portion, the lower sloping portion 77 extended from the lower end of the front vertical portion 76 and located to be opposite to the through hole of the cylinder, and the side vertical portions 78 and 79, located between both sides of the upper horizontal portion and the lower sloping portion 77, having difference horizontal sloping angles.
- one side of the lower sloping portion 77 has a horizontal spraying angle in the range of 30° to 50°
- the other side of the lower sloping portion 77 has a horizontal spraying angle in the range of 60° to 80°.
- the nozzle 74 has an opened rear surface, and one side vertical portion 78 of the side vertical portions 78 and 79 has a comparatively small horizontal spraying angle ( ⁇ 1 ), thereby allowing washing water, which collides with the lower sloping portion 77 and is guided along the side vertical portion 78, to be directed to the rear surface of the drum. Further, the other side vertical portion 79 of the side vertical portions 78 and 79 has a comparatively large horizontal spraying angle ( ⁇ 2 ), thereby allowing washing water, which collides with the lower sloping portion 77 and is guided along the side vertical portion 79, to be directed to the circumferential portion of the drum.
- ⁇ 1 horizontal spraying angle
- ⁇ 2 horizontal spraying angle
- the washing machine of the present invention has advantages as follows.
- the washing machine comprises a nozzle having a vertical spraying angle in the range of 30° to 40° so that washing water sprayed from the nozzle is directed to a lower portion of a rear surface or a circumferential portion of a drum and uniformly directed to laundry in the drum, thereby improving washing and rinsing efficiency and reducing a quantity of the washing water consumed.
- a washing machine comprises a nozzle having a horizontal spraying angle in the range of 110° to 130° so that washing water sprayed from the nozzle is concentrically directed to the drum in order to minimize washing water leakage through a gap between the drum and the tub, thereby improving washing and rinsing efficiency and reducing a quantity of the washing water consumed.
- a washing machine comprises a nozzle having different left and right vertical spraying angles so that a part of washing water guided to a portion of the nozzle having a comparatively small vertical spraying angle is directed to a rear surface of a drum and the part of washing water guided to a portion of the nozzle having a comparatively large vertical spraying angle is directed to a circumferential portion of the drum, thus allowing the washing water to be uniformly directed to laundry in the drum, thereby improving washing and rinsing efficiency and reducing a quantity of the washing water consumed.
- a washing machine comprises a nozzle having different left and right horizontal spraying angles so that a part of washing water guided to a portion of the nozzle having a comparatively small horizontal spraying angle is directed to a rear surface of a drum and the part of washing water guided to a portion having a comparatively large horizontal spraying angle is directed to a circumferential portion of the drum, thus allowing the washing water to be uniformly directed to laundry in the drum, thereby improving washing and rinsing efficiency and reducing a quantity of the washing water consumed.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020030054629A KR100688160B1 (ko) | 2003-08-07 | 2003-08-07 | 프론트 로딩 타입 드럼 세탁기 |
KR2003054629 | 2003-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1505191A1 true EP1505191A1 (de) | 2005-02-09 |
Family
ID=33550325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04011677A Withdrawn EP1505191A1 (de) | 2003-08-07 | 2004-05-17 | Waschmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050028564A1 (de) |
EP (1) | EP1505191A1 (de) |
KR (1) | KR100688160B1 (de) |
CN (1) | CN100392171C (de) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1679401A3 (de) * | 2005-01-10 | 2006-09-06 | LG Electronics, Inc. | Trommelwaschmaschine |
EP1700943A1 (de) * | 2006-06-14 | 2006-09-13 | V-Zug AG | Waschmaschine mit Einspritzdüse |
US7568366B2 (en) | 2004-07-20 | 2009-08-04 | Lg Electronics Inc. | Drum-type washing machine and bearing housing structure thereof |
US7827834B2 (en) | 2005-09-30 | 2010-11-09 | Lg Electronics Inc. | Bearing housing assembly of drum-type washing machine and drum-type washing machine with the same |
US20100281927A1 (en) * | 2009-04-03 | 2010-11-11 | Lg Electronics Inc. | Washing machine |
US7841220B2 (en) | 2005-09-30 | 2010-11-30 | Lg Electronics Inc. | Drum-type washing machine |
WO2009125917A3 (en) * | 2008-04-08 | 2010-12-02 | Lg Electronics Inc. | Washing machine |
EP2271800A2 (de) * | 2008-04-08 | 2011-01-12 | LG Electronics Inc. | Waschmaschine |
EP2305872A2 (de) * | 2008-05-06 | 2011-04-06 | Daewoo Electronics Corporation | Restwasserablassbetriebsverfahren für waschmaschine |
US7930910B2 (en) | 2002-12-27 | 2011-04-26 | Lg Electronics Inc. | Drum type washing machine |
EP2348152A1 (de) | 2010-01-20 | 2011-07-27 | Miele & Cie. KG | Waschmaschine mit Umfluteinrichtung |
US8087267B2 (en) | 2002-12-27 | 2012-01-03 | Lg Electronics Inc. | Drum type washing machine |
CN102454091A (zh) * | 2010-10-20 | 2012-05-16 | 松下电器产业株式会社 | 滚筒式洗衣机 |
EP2471992A1 (de) * | 2009-08-27 | 2012-07-04 | Panasonic Corporation | Trommelwaschmaschine |
AU2010226942B2 (en) * | 2005-03-15 | 2012-07-05 | Happy Co., Ltd | Washing Apparatus and Method |
USRE43625E1 (en) | 2006-03-29 | 2012-09-04 | Lg Electronics Inc. | Drum type washing machine |
EP2496754A2 (de) * | 2009-11-02 | 2012-09-12 | LG Electronics Inc. | Waschmaschine und waschverfahren mit einer sprühdüse zum sprühen von wirbelwasser in die trommel |
EP2698466A2 (de) * | 2011-04-14 | 2014-02-19 | Lg Electronics Inc. | Unterlegscheibe |
EP2728057A1 (de) * | 2011-11-02 | 2014-05-07 | Daewoo Electronics Corporation | Wasserzufuhrvorrichtung für eine waschmaschine |
WO2014131452A1 (en) * | 2013-02-28 | 2014-09-04 | Arcelik Anonim Sirketi | Washing machine washing and rinsing system having an improved efficiency |
EP2808435A1 (de) * | 2013-05-29 | 2014-12-03 | Samsung Electronics Co., Ltd | Waschmaschine mit Einspritzdüse |
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Also Published As
Publication number | Publication date |
---|---|
US20050028564A1 (en) | 2005-02-10 |
CN100392171C (zh) | 2008-06-04 |
KR100688160B1 (ko) | 2007-03-02 |
KR20050015692A (ko) | 2005-02-21 |
CN1580374A (zh) | 2005-02-16 |
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