EP1500736B1 - Waschmaschine - Google Patents

Waschmaschine Download PDF

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Publication number
EP1500736B1
EP1500736B1 EP04250111.4A EP04250111A EP1500736B1 EP 1500736 B1 EP1500736 B1 EP 1500736B1 EP 04250111 A EP04250111 A EP 04250111A EP 1500736 B1 EP1500736 B1 EP 1500736B1
Authority
EP
European Patent Office
Prior art keywords
drum
water
washing machine
tub
end part
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
EP04250111.4A
Other languages
English (en)
French (fr)
Other versions
EP1500736A3 (de
EP1500736A2 (de
Inventor
Jae-Ryong Park
Hyung-Gyoon Kim
Sang-Yeon Pyo
Seon-Woo Park
Hye Soon Yang
Seong Min Oak
Byoung Yull Yang
Hyun Sook Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1500736A2 publication Critical patent/EP1500736A2/de
Publication of EP1500736A3 publication Critical patent/EP1500736A3/de
Application granted granted Critical
Publication of EP1500736B1 publication Critical patent/EP1500736B1/de
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
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined 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
    • 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 
    • D06F23/06—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 an inclined 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • 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
    • 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
    • D06F39/085—Arrangements or adaptations of pumps

Definitions

  • the present invention relates to a drum washing machine including a tub and rotatably mounted drum within the tub to receive laundry to be washed, the drum having first and second end parts spaced from each other by a cylindrical sidewall part.
  • a conventional drum washing machine comprises a cylindrical rotary drum which is rotatably mounted in a water tub within a housing and is rotated to agitate laundry in water to wash the laundry.
  • An example of a conventional drum washing machine is disclosed in Japanese patent laid-open Publication No. 2001-149685 .
  • a conventional drum washing machine includes a rotary water drum, a tub and a heater.
  • the tub contains water therein and the rotary drum has a plurality of perforations in its sidewall.
  • the heater is installed at a predetermined position under the tub so as to heat water to a predetermined temperature.
  • the drum washing machine is operating and both water and detergent are fed into the tub, the drum is rotated in the tub at a low speed.
  • the heater heats water to a predetermined temperature, thereby enhancing the washing effect of the washing machine.
  • a conventional drum washing machine suffers from several problems. Firstly, it is necessary to feed water into the washing machine to a level at which the laundry inside the drum is immersed in the water also allowing for a gap between the perforated rotary drum and the tub. Therefore, a conventional drum washing machine consumes an excessive amount of water. Since a conventional drum washing machine is designed so that water is fed into the tub and flows into the rotary drum through the perforations until the laundry in the rotary drum is immersed in the water, a large amount of water must be fed into the tub. Consumption of the water during the operation of the washing machine is thus excessively increased, leading to an increase in cost.
  • the washing time is further increased as water must be heated to a predetermined temperature by the heater, before the rotary drum starts to rotate to wash the laundry in the heater water. Furthermore, since the large amount of water must be heated to the predetermined temperature by the heater, an excessive amount of electricity is used to heat the water.
  • Another disadvantage is that it is difficult to manufacture the drum as perforations must be formed around its sidewall to allow the water to flow between the tub and the rotary drum and to allow the rotary drum to spin-dry the laundry during a spin-drying operation.
  • Washing machines known in the prior art are disclosed in e.g. US 6,553,594 or US 6,065,312 .
  • a washing machine is characterised in that the drum is mounted for rotation about an axis inclined relative to the horizontal so that the sidewall part is angled downwardly away from the second end part, the first end part and the sidewall part being completely closed to contain water in the drum and a plurality of drain holes being formed in the second end part, to allow water to collect in the drum in a region between the sidewall part and the first end part, beneath the drain holes.
  • a washing machine is characterised in that the drum is mounted for rotation about an axis inclined relative to the horizontal so that the sidewall part is angled downwardly away from the second end part, wherein a plurality of drain holes is formed in the second end part, the first end part and the sidewall part being completely closed to contain water in the drum with the exception of additional drain holes being formed around the edge of the sidewall part adjacent to the second end part, to allow water to collect in the drum in a region between the sidewall part and the first end part, beneath the drain holes.
  • the angle of inclination of the sidewall part relative to the horizontal is different to the angle of inclination of the axis about which the tub rotates so that when the tub rotates, water contained therein is directed toward the drain holes.
  • the angle of inclination of the sidewall part relative to the horizontal is less than the angle of inclination of the axis of rotation of the tub relative to the horizontal.
  • the plurality of drain holes are arranged in a circular pattern in the second end part.
  • the plurality of drain holes in the second end part are arranged in a first circular pattern and at least one further circular pattern concentric with the first circular pattern.
  • the junction between said second end part and the sidewall part is curved and the drain holes are formed in the curved region.
  • a drum washing machine includes a housing 10, a tub 11, and a rotary drum 20.
  • the tub 11 is installed in the housing 10 and receives water therein for washing.
  • the rotary drum 20 is rotatably mounted within the tub 11.
  • the axis of the tub 11 is inclined relative to the horizontal at a predetermined first angle ⁇ of inclination, such that a front part 11a of the tub 11 having an inlet opening 11b is at a position higher than a rear part 11c of the tub 11.
  • the drum 20 is mounted in the tub 11 such that a front part 22 of the rotary drum 20 having an inlet opening 23 is placed at a position higher than a rear part 21 of the rotary drum 20. That is, a rotating axis A of the rotary drum 20 is inclined relative to a horizontal axis at the first angle ⁇ of inclination to allow the front part 22 having the inlet opening 23 to be placed at the position higher than the rear part 21.
  • a rotating shaft 12 which is securely mounted to a centre of the rear part 21 of the rotary drum 20, is rotatably held in a centre of the rear part 11c of the tub 11, thus allowing the drum 20 to rotate relative to the tub 11.
  • the tub 11 is suspended in the housing 10 by a plurality of shock absorbing suspension units (not shown) while being apart from an internal surface of the housing 10.
  • the axis of rotation of the rotary drum 20 is coaxial with the axis of the tub 11.
  • a motor 13 to rotate the rotating shaft 12 of the drum 20 is mounted outside the rear part 11c of the tub 11 and includes a stator 13a mounted to the rear part 11c of the tub 11, a rotor 13b which is rotatably placed around the stator 13a, and a rotary disc 13c which couples the rotor 13b to the stator 13a.
  • the front of the housing 10 has an inlet opening 14 which is aligned with both the inlet opening 11b of the tub 11 and the inlet opening 23 of the rotary drum 20, to enable a user to put laundry into, or remove it from, the rotary drum 20 via the three aligned inlet openings 14,23 and 11b.
  • a door 15 is hingedly mounted to an edge of the inlet opening 14 so as to close the opening 14.
  • a cylindrical bellows 16 extends between the inlet opening 14 of the housing 10 and the inlet opening 11b of the tub 11.
  • a cylindrical guide unit 17 is placed inside the bellows 16 to allow the user to easily put or remove laundry into or from the rotary drum 20.
  • a detergent supply unit 18 and a water supply unit 30 are installed in the housing 10 at positions above the water tub 11 to respectively feed detergent and water into the tub 11.
  • the detergent supply unit 18 is placed at the front part of the housing 10 to allow the user to fill it with detergent.
  • the water supply unit 30 comprises a first water feed pipe 32 which extends from an external water supply pipe 31 to the detergent supply unit 18, a second water feed pipe 33 which extends from the detergent supply unit 18 to the tub 11, and a first control valve 34 which is mounted to an intermediate portion of the first water feed pipe 32 to control a flow of the water to be fed into the tub 11. Due to coupled construction of the detergent supply unit 18 and the water supply unit 30, the water passes through the detergent supply unit 18, prior to reaching the tub 11. Therefore, the detergent contained in the detergent supply unit 18 is dissolved in water prior to being fed into the tub 11.
  • the drum washing machine has a heater 40 in a lower portion of the tub 11 to heat water contained in the tub 11.
  • a heater holding part 41 which is a pan-shaped part, is provided at a lower portion of a sidewall of the tub 11 by drawing or deflecting the lower portion of the sidewall of the tub 11 downward, away from the rotary drum, as shown in Figures 1 , 2 and 3 .
  • the heater 40 is installed in the heater holding part 41 in which a predetermined amount of water is collected so that the heater 40 is submerged in water. Since the heater 40 is placed in the heater holding part 41 the rotary drum 20 can rotate without interfering with the heater 40.
  • the drum washing machine also has a drain unit 50 which discharges water from the tub 11 and a water circulation unit 60 which feeds water, which is heated by the heater 40 in the tub 11, into the rotary drum 20.
  • the drain unit 50 comprises a first drain pipe 51, a drain pump 52 and a second drain pipe 53.
  • the first drain pipe 51 is connected to a drain port 42 in communication with the heater holding part 41 of the lower portion of the tub 11 to allow water to be discharged from the tub 11.
  • the drain pump 52 is mounted to an intermediate portion of the first drain pipe 51 and the second drain pipe 53 extends from an outlet of the drain pump 52.
  • the water circulation unit 60 includes a second control valve 61, a water circulation pipe 62, and a spray nozzle 63.
  • the second control valve 61 is mounted to an intermediate portion of the second drain pipe 53 that extends from the outlet of the drain pump 52.
  • the water circulation pipe 62 extends from the second control valve 61 to the inlet opening 23 of the rotary drum 20.
  • the spray nozzle 63 is mounted to an outlet of the water circulation pipe 62.
  • the second control valve 61 controls a flow direction of the wash water flowing from the outlet of the drain pump 52 so as to drain discharged wash water or to guide discharged wash water into the water circulation pipe 62.
  • a motorized three-way valve may be used as the second control valve 61.
  • the spray nozzle 63 is held by the guide unit 17 adjacent to the inlet opening 23 of the rotary drum 20, thus spraying wash water into the rotary drum 20 through the inlet opening 23.
  • the water which is discharged from the lower portion of the water tub 11 may be drained to the outside of the housing 10 or be sprayed into the rotary drum 20. That is, when the drain pump 52 is operated with the second control valve 61 controlled to guide the discharged water to the water circulation pipe 62, as shown in Figure 1 , the discharged water passes through both the first drain pipe 51 and the water circulation pipe 62 to be sprayed into the rotary drum 20. However, when the drain pump 52 is operated with the second control valve 61 controlled to guide the discharged water to the second drain pipe 53, as shown in Figure 2 , the discharged water is drained to the outside of the housing 10.
  • the rotary drum 20 which is installed in the water tub 11 to be inclined relative to the horizontal axis of the cabinet 10 at the first angle ⁇ of inclination, comprises the front part 22 having the inlet opening 23, the rear part 21 securely coupled to the rotating shaft 12, and a cylindrical sidewall part 24 extending between the front part 22 and the rear part 21.
  • the rear part 21 and the cylindrical sidewall part 24 are completely closed to contain water in the drum 20.
  • the diameter of the rotary drum 20 gradually increases from the rear part 21 to the front part 22 so that the sidewall part 24 of the rotary drum 20 is inclined at an angle ⁇ relative to the rotating axis A of the rotary drum 20 as shown in Figure 5 .
  • a plurality of drain holes 25 are provided along an edge of the inlet opening 23 of the front part 22 to discharge water from the rotary drum 20 when it is rotated at a high speed.
  • the rotary drum 20 also has a plurality of lifters 26 around an internal surface of the cylindrical sidewall part 24 to repeatedly lift the laundry upward along with the water so that it drops from the top to the bottom inside the rotary drum 20 due to gravity, when the rotary drum 20 rotates.
  • a plurality of agitating blades 27 are provided on an internal surface of the rear part 21 of the rotary drum 20 as shown in Figure 3 .
  • a predetermined amount of water is contained in the rotary drum 20 to allow the laundry to be submerged in the water.
  • the water is fed into the rotary drum 20 to reach a level that is not higher than a lowermost drain hole 25 of the rotary drum 20.
  • the first angle ⁇ of inclination of the rotating axis A of the rotary drum 20 relative to the horizontal axis of the housing 10 may be set to approximately 15° in order to contain an appropriate amount of water in the rotary drum 20 and effectively wash the laundry.
  • the sidewall 24 of the rotary drum 20 is inclined relative to the rotating axis A of the rotary drum 20 at the second angle ⁇ of inclination, and the drain holes 25 are provided along the edge of the inlet opening 23 of the front part 22 of the rotary drum 20.
  • water is guided to the drain holes 25 of the rotary drum 20 during rotation of the rotary drum 20. That is, when the rotary drum 20 is rotated at a high speed during a spin-drying operation of the washing machine, water is squeezed out of the laundry in the rotary drum 20 and moves in a radial direction away from the axis A due to centrifugal force.
  • the second angle ⁇ of inclination of the internal surface of the rotary drum 20 relative to the rotating axis A of the rotary drum 20 may be set at 0.5° or higher.
  • Figures 6 and 7 are sectional views of a rotary drum 20, with drain holes provided on the rotary drum 20 according to a first modification and a second modification of the embodiment of Figure 1 , respectively.
  • a plurality of rows of drain holes 25a are provided on the front part 22 of the rotary drum 20 along the edge of the inlet opening 23 and drain holes 25b are provided around an edge of the cylindrical sidewall part 24 adjacent to the front part 22.
  • the rotary drum 20 of Figure 6 more effectively discharges water in comparison with the rotary drum 20 of Figure 4 .
  • the rotary drum 20 is rounded along a junction corner 28 between the front part 22 and the cylindrical sidewall part 24, with a plurality of drain holes 25c being formed along the rounded junction corner 28.
  • this arrangement reduces the water draining effect, in comparison with the rotary drum 20 of Figure 6 , it may desirably contain a large amount of water therein, without enlarging the angle ⁇ of inclination of the rotary drum 20 relative to the horizontal axis of the housing 10.
  • the drum washing machine having the above mentioned construction is operated as follows.
  • the washing machine is turned on after laundry is put into the rotary drum 20 and detergent is added to the detergent supply unit 18 so that the first control valve 34 of the water supply unit 30 opens to feed water into the water tub 11.
  • the water passes through the detergent supply unit 18 prior to reaching the water tub 11, so that the detergent is dissolved in the water.
  • the supply of water into the water tub 11 is stopped.
  • the heater 40 When the predetermined amount of water is completely fed into the water tub 11, the heater 40 is turned on to heat the water. Since the amount of water contained in the tub 11 is reduced, in comparison to the conventional drum washing machine, as described above, it is possible to quickly heat the water within a short period, thereby shortening the washing time and reducing an amount of electricity required to heat the water.
  • the control valve 61 of the water circulation unit 60 is operated to permit the outlet of the drain pump 52 to communicate with the water circulation pipe 62.
  • the drain pump 52 in the above state is operated, the heater water is discharged from the heater holding part 41 to pass through both the first drain pipe 51 and the water circulation pipe 62, thus being fed into the rotary drum 20.
  • an entire part of the laundry contained in the rotary drum 20 is uniformly wet with the water since the spray nozzle 63 sprays the water onto the laundry.
  • the rotary drum 20 is rotated at a low speed by the motor 13 simultaneously with the spraying of the water into the rotary drum 20, thus washing the laundry.
  • the entire laundry contained in the rotary drum 20 is sufficiently wet with the water contained in the rotary drum 20 since the rotary drum 20 is installed in the housing 10 and inclined relative to the horizontal axis of the housing 10 at the first angle ⁇ of inclination, as shown in Figure 1 .
  • the drum washing machine thus smoothly and effectively executes the wash cycle.
  • the level of water in the rotary drum 20 exceeds the height of a lowermost drain hole 25 of the rotary drum 20 water overflows from the rotary drum 20 into the tub 11 through the drain holes 25, prior to returning from the tub 11 to the drum 20 by an operation of the drain pump 52.
  • the circulation of water is continued during the wash cycle.
  • the drum washing machine performs the wash cycle most of the water is continuously fed from the tub 11 into the drum 20, so that the tub 11 contains only a small amount of water therein.
  • the drum washing machine executes a rise cycle to repeatedly rinse and spin-dry the washed laundry.
  • the washed laundry must be primarily spin-dried.
  • the drain pump 52 is operated with the second control valve 61 controlled to permit the outlet of the drain pump 52 to communicate with the second drain pipe 53, and the rotary drum 20 is rotated at a high speed, thus spin-drying the washed laundry.
  • the rotary drum 20 While the rotary drum 20 is rotated at a high speed to spin-dry the laundry, the water is primarily squeezed out of the laundry in the rotary drum 20 and moves in a radially outward direction along the internal surface of the cylindrical sidewall part 24 of the rotary drum 20 due to a centrifugal force, and is secondarily guided to the drain holes 25, since the internal surface of the rotary drum 20 is inclined relative to the rotating axis A of the rotary drum 20 at the second angle ⁇ of inclination, as shown in Figure 2 .
  • the water in the drum 20 is thus discharged to the outside of the rotary drum 20 through the drain holes 25, and the water in the tub 11 is drained to the outside of the housing 10 by the operation of the drain pump 52.
  • new water enters the tub 11 by the operation of the water supply unit 30, and is introduced into the drum 20 by the operation of the water circulation unit 60, in the same manner as that described for the wash cycle, thus rinsing laundry.
  • the spin-drying of the laundry and the feeding of new water into the water tub 11 are repeated several times.
  • the rinse cycle ends with a final spin-drying of the rinsed laundry.
  • the drain pump 52 is operated with the second control valve 61 controlled to permit the outlet of the drain pump 52 to communicate with the second drain pipe 53, and the rotary drum 20 is rotated at a high speed for a predetermined period of time. That is, the final spin-drying of the rinsed laundry is performed in the same manner as an intermediate spin-drying of the laundry during the rinsing operation.
  • the present invention provides a drum washing machine in which a rotary drum is installed in a housing and is inclined relative to a horizontal axis of the housing, and both a rear part and a sidewall part of the rotary drum as well as a junction between the rear part and the sidewall part are completely closed. Water is contained in the rotary drum during a washing operation of the drum washing machine. Therefore, the drum washing machine uses less water to wash laundry, without reducing the washing effect as in a conventional drum washing machine.
  • the drum washing machine feeds a small amount of water from a water tub into the rotary drum after heating the small amount of water by use of a heater, thus reducing the amount of electricity required to heat the water, and reducing washing time.
  • the washing machine quickly feeds and drains the water into and from the tub, thus reducing the overall washing time.
  • the rotary drum does not have perforations on the rear or sidewall part thereof, it has a simple construction.

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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)

Claims (20)

  1. Waschmaschine, umfassend einen Wasserbehälter (11) und eine drehbar montierte Trommel (20) in dem Wasserbehälter (11), um zu waschende Wäsche aufzunehmen, wobei die Trommel (20) einen ersten und einen zweiten Endteil (21,22) aufweist, die durch einen zylindrischen Seitenwandteil (24) voneinander beabstandet sind, dadurch gekennzeichnet, dass die Trommel (20) zur Drehung um eine gegenüber der Horizontalen geneigte Achse montiert ist, sodass der Seitenwandteil (24) von dem zweiten Endteil (22) weg nach unten schräggestellt ist, wobei der erste Endteil (21) und der Seitenwandteil (24) vollständig geschlossen sind, um Wasser in der Trommel (20) einzuschließen und eine Vielzahl von Ablauflöchern (25) in dem zweiten Endteil gebildet ist, um zuzulassen, dass sich Wasser in einer Region zwischen dem Seitenwandteil (24) und dem ersten Endteil (21) unter den Ablauflöchern (25) in der Trommel (20) ansammelt.
  2. Waschmaschine, umfassend einen Wasserbehälter (11) und eine drehbar montierte Trommel (20) in dem Wasserbehälter (11), um zu waschende Wäsche aufzunehmen, wobei die Trommel (20) einen ersten und einen zweiten Endteil (21,22) aufweist, die durch einen zylindrischen Seitenwandteil (24) voneinander beabstandet sind, dadurch gekennzeichnet, dass die Trommel (20) zur Drehung um eine gegenüber der Horizontalen geneigte Achse montiert ist, sodass der Seitenwandteil (24) von dem zweiten Endteil (22) weg nach unten schräggestellt ist, wobei eine Vielzahl von Ablauflöchern (25) in dem zweiten Endteil (22) gebildet ist, wobei der erste Endteil (21) und der Seitenwandteil (24) vollständig geschlossen sind, um Wasser in der Trommel (20) einzuschließen, mit der Ausnahme, dass zusätzliche Ablauflöcher (25b) um den Rand des Seitenwandteils (24) benachbart dem zweiten Endteil (22) gebildet sind, um zuzulassen, dass sich Wasser in einer Region zwischen dem Seitenwandteil (24) und dem ersten Endteil (21) unter den Ablauflöchern (25,25b) in der Trommel (20) ansammelt.
  3. Waschmaschine nach Anspruch 1 oder Anspruch 2, wobei der Neigungswinkel des Seitenwandteils (24) gegenüber der Horizontalen vom Neigungswinkel der Achse, um die sich die Trommel (20) dreht, verschieden ist, sodass, wenn sich die Trommel (20) dreht, darin enthaltenes Wasser zu den Ablauflöchern (25) geleitet wird.
  4. Waschmaschine nach Anspruch 3, wobei der Neigungswinkel des Seitenwandteils (24) gegenüber der Horizontalen kleiner ist als der Neigungswinkel der Drehachse der Trommel (20) gegenüber der Horizontalen.
  5. Waschmaschine nach einem der vorangehenden Ansprüche, wobei die Vielzahl von Ablauflöchern (25) in einem Kreismuster in dem zweiten Endteil (22) angeordnet sind.
  6. Waschmaschine nach Anspruch 5, wobei die Vielzahl von Ablauflöchern (25) in dem zweiten Endteil (22) in einem ersten Kreismuster und mindestens einem weiteren, mit dem ersten Kreismuster konzentrischen Kreismuster angeordnet sind.
  7. Waschmaschine nach Anspruch 2, wobei die Verbindung zwischen dem zweiten Endteil (22) und dem Seitenwandteil (24) gekrümmt ist und die Ablauflöcher (25) in der gekrümmten Region gebildet sind.
  8. Waschmaschine nach einem der vorangehenden Ansprüche, umfassend eine Einlassöffnung (23), die in dem zweiten Endteil (22) der Trommel (20) gebildet ist, um nach oben und nach vorne gerichtet zu sein, eine Antriebseinheit (13) zum Antreiben der Trommel (20) und eine Wasserumwälzeinheit (60) zum Einspeisen des Wassers von dem Wasserbehälter (11) in die Trommel (20).
  9. Waschmaschine nach Anspruch 8, weiter umfassend eine in einem unteren Abschnitt des Wasserbehälters (11) vorgesehene Heizvorrichtung (40), die das Wasser erwärmt.
  10. Waschmaschine nach Anspruch 8 oder Anspruch 9, weiter umfassend eine Ablaufeinheit (50), die eine mit dem unteren Abschnitt des Wasserbehälters (11) verbundene Ablaufleitung (51,53) und eine an einem mittleren Abschnitt der Ablaufleitung (51) montierte Ablaufpumpe (52) aufweist.
  11. Waschmaschine nach einem der Ansprüche 8 bis 10, wobei die Wasserumwälzeinheit (60) Folgendes umfasst: ein Steuerventil (61), das an einer Stelle um einen Auslass der Ablaufpumpe (52) an der Ablaufleitung (51) der Ablaufeinheit (50) montiert ist, um eine Strömungsrichtung des von der Ablaufpumpe (52) fließenden Wassers zu steuern, eine Wasserumwälzleitung (62), das sich von dem Steuerventil (61) zu der Einlassöffnung (23) der Trommel (20) erstreckt und eine Sprühdüse (63), die an einem Auslass der Wasserumwälzleitung (62) montiert ist, um das Wasser in die Trommel (20) zu sprühen.
  12. Waschmaschine nach einem der Ansprüche 8 bis 11, wobei der erste Endteil (21) die Trommel (20) schließt und an eine Drehwelle (12) an einer Mitte des ersten Endteils (21) gekoppelt ist, wobei die Einlassöffnung (23) an einem mittleren Abschnitt des zweiten Endteils (22) vorgesehen ist und wobei ein Innendurchmesser des Seitenwandteils (24) entlang einer Richtung von dem ersten Endteil (21) zu dem nach oben gerichteten zweiten Endteil (22) zunimmt, um zuzulassen, dass eine innere Oberfläche des Seitenwandteils (24) geneigt ist.
  13. Waschmaschine nach einem der Ansprüche 8 bis 12, weiter umfassend eine Waschmittel-Zufuhreinheit (18) und eine Wasserzufuhreinheit (30), die in einem Gehäuse (10) über dem Wasser installiert sind, um jeweils ein Waschmittel bzw. Wasser in den Wasserbehälter (11) einzuspeisen.
  14. Waschmaschine nach Anspruch 13, wobei die Waschmittel-Zufuhreinheit (18) in einem vorderen Teil des Gehäuses (10) platziert ist, um zuzulassen, dass der Benutzer das Waschmittel in den Wasserbehälter (11) einspeist.
  15. Waschmaschine nach Anspruch 13 oder Anspruch 14, wobei die Wasserzufuhreinheit (30) Folgendes umfasst: eine erste Wasserspeiseleitung (32), die sich von einer externen Wasserzufuhrleitung zur Waschmittel-Zufuhreinheit (18) erstreckt, eine zweite Wasserspeiseleitung (33), die sich von der Waschmittel-Zufuhreinheit (18) zu dem Wasserbehälter (11) erstreckt und ein Steuerventil (34), das an einem mittleren Abschnitt der ersten Wasserspeiseleitung (32) montiert ist, um einen Fluss des in den Wasserbehälter (11) einzuspeisenden Wassers zu steuern.
  16. Waschmaschine nach Anspruch 9, wobei die Heizvorrichtung (40) in einem Heizvorrichtungs-Halteteil (41) installiert ist, in dem eine vorherbestimmte Wassermenge auf ein Niveau gesammelt wird, um zuzulassen, dass die Heizvorrichtung (40) in das Wasser eingetaucht wird.
  17. Waschmaschine nach Anspruch 16, wobei der Heizvorrichtungs-Halteteil (41) eine wannenförmige Erscheinung aufweist.
  18. Waschmaschine nach Anspruch 10, wobei die Ablaufleitung (51) eine erste Ablaufleitung (51), die mit einem an einem unteren Abschnitt des Wasserbehälters (11) vorgesehenen Ablaufanschluss (42) verbunden ist und eine zweite Ablaufleitung (53), die sich von einem Auslass der Ablaufpumpe (52) erstreckt und zulässt, dass Wasser zu einem Äußeren eines Gehäuses (10) abgelassen wird, umfasst.
  19. Waschmaschine nach Anspruch 1, wobei die Trommel (20) durch Verwendung einer Drehwelle (12) in dem Wasserbehälter (11) installiert ist und der Seitenwandteil (24) gegenüber der Drehachse der Trommel (20) geneigt ist, sodass ein Innendurchmesser der Trommel (20) entlang einer Richtung von dem ersten an die Drehwelle gekoppelten Endteil (21) zu dem eine Einlassöffnung (23) aufweisenden zweiten Endteil (22) zunimmt, wobei die Trommel (20) um den Seitenwandteil (24) geschlossen ist und ein Ablaufloch (25,25b) an einer Stelle benachbart der Einlassöffnung (23) an der Trommel (20) vorgesehen ist.
  20. Waschmaschine nach Anspruch 1, wobei die Trommel (20) in dem Wasserbehälter (11) beinhaltet ist, um geneigt zu sein, sodass der eine Einlassöffnung (23) aufweisende zweite Endteil (22) der Trommel (20) dazu positioniert ist, höher zu sein als der an eine Drehwelle (12) gekoppelte erste Endteil (21) der Trommel (20) und der Seitenwandteil (24) der Trommel (20) geneigt ist, sodass ein Innendurchmesser der Trommel (20) entlang einer Richtung von dem ersten Endteil (21) zu dem zweiten Endteil (22) zunimmt und wobei ein Ablaufloch an einer Stelle benachbart der Einlassöffnung (23) des zweiten Endteils (22) an der Trommel (20) vorgesehen ist, eine Antriebseinheit (13) zum Antreiben der Trommel (20) und eine Wasserumwälzeinheit (60) zum Einspeisen des Wassers von dem Wasserbehälter (11) in die Trommel (20).
EP04250111.4A 2003-07-23 2004-01-12 Waschmaschine Expired - Lifetime EP1500736B1 (de)

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KR100716255B1 (ko) 2007-05-08
US20050015892A1 (en) 2005-01-27
KR20050011515A (ko) 2005-01-29
EP1500736A2 (de) 2005-01-26

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