KR20050022063A - Door unit of drum-type washing machine - Google Patents

Door unit of drum-type washing machine Download PDF

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Publication number
KR20050022063A
KR20050022063A KR1020030059088A KR20030059088A KR20050022063A KR 20050022063 A KR20050022063 A KR 20050022063A KR 1020030059088 A KR1020030059088 A KR 1020030059088A KR 20030059088 A KR20030059088 A KR 20030059088A KR 20050022063 A KR20050022063 A KR 20050022063A
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KR
South Korea
Prior art keywords
door
washing machine
drum
handle
unit
Prior art date
Application number
KR1020030059088A
Other languages
Korean (ko)
Inventor
박상호
홍권기
Original Assignee
엘지전자 주식회사
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020030059088A priority Critical patent/KR20050022063A/en
Publication of KR20050022063A publication Critical patent/KR20050022063A/en

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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
    • D06F37/26—Casings; Tubs
    • D06F37/28—Doors; Security means therefor
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors
    • 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
    • D06F37/10—Doors; Securing means therefor
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • 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
    • D06F2103/40—Opening or locking status of doors
    • 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
    • D06F2105/44—Opening, closing or locking of doors

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

PURPOSE: A door part of a drum-type washing machine is provided to keep the laundry and washing water containing detergent from coming out and making the area around the washing machine dirty by stopping operation through an electrostatic capacitance sensor before the door opens. CONSTITUTION: A door part(500) of a drum-type washing machine is composed of a door case(510) forming a body of the door; a knob(540) formed on a part of the door case to be held by a hand for opening/closing the door; a sensing unit detecting whether a user touches the knob to open the door; and a control unit(MICOM) to cut off all load power by signals from the sensing unit. The sensing unit is composed of a contact unit(550) made of an electroconductive material and an electrostatic capacitance sensor(560) providing the signals into the control unit by sensing the fluctuation of electric charges transmitted from the contact unit. The contact unit is recessed and installed on the inner surface of the knob.

Description

드럼세탁기의 도어부{Door unit of drum-type washing machine}Door unit of drum washing machine {Door unit of drum-type washing machine}

본 발명은 드럼세탁기에 관한 것으로서, 세탁중인 드럼세탁기의 도어를 사용자가 개방하고자 할 때, 센서가 이를 감지하여 세탁과정을 멈출 수 있도록 한 드럼세탁기의 도어부에 관한 것이다.The present invention relates to a drum washing machine, and more particularly, to a door unit of a drum washing machine, which allows a sensor to detect the washing machine and stop the washing process when a user tries to open the door of the washing machine.

일반적으로, 드럼세탁방식은 세제와 세탁수 및 세탁물이 드럼 내에 투입된 상태에서, 모터의 구동력을 전달받아 회전하는 드럼과 세탁물의 마찰력을 이용하여 세탁을 행하는 방식으로서, 세탁물의 포손상이 거의 없고, 세탁물이 서로 엉키지 않으며, 두드리고 비벼 빠는 세탁효과를 낼 수 있는 장점이 있다.In general, the drum washing method is a method of washing by using the friction force of the rotating drum and the laundry by receiving the driving force of the motor in a state in which detergent, washing water and laundry are put in the drum, there is almost no damage to the laundry. Laundry is not tangled with each other, there is an advantage that can produce a laundry effect of pounding and scrubbing.

이하, 종래의 드럼세탁기의 개략적 구조 및 종래 기술장치의 구조에 대해 도를 참조하여 설명하면 다음과 같다.Hereinafter, the schematic structure of the conventional drum washing machine and the structure of the prior art apparatus will be described with reference to the accompanying drawings.

일반적인 드럼세탁기의 구성을 보이는 도 1에 도시한 바와 같이, 세탁기의 외관을 형성하는 외부케이싱(100)의 내부에는 터브(300)가 설치되어 있다. As shown in FIG. 1 showing the structure of a general drum washing machine, the tub 300 is installed inside the outer casing 100 forming the exterior of the washing machine.

그리고, 상기 터브(300)의 내부에는 드럼(200)이 회전 가능하게 설치되어 있다.In addition, the inside of the tub 300, the drum 200 is rotatably installed.

상기 드럼(200)은 회전에 의하여 세탁물의 세탁을 실질적으로 수행하는 부분이고, 상기 터브(300)는 세탁을 위하여 회전하는 드럼(200)의 회전을 안내하면서 지지하는 기능을 수행하게 되는 것으로, 그 내부 하측에는 세탁을 위한 물이 차게 된다.The drum 200 is a portion for substantially washing the laundry by the rotation, the tub 300 is to perform the function of supporting while guiding the rotation of the rotating drum 200 for washing, The lower part of the interior is filled with water for washing.

상기 드럼(200)은, 구동장치(400)에서 전달되는 동력에 의하여 회전하게 되는데, 이러한 구동장치(400)는, 모터(440)와, 상기 모터(440)에서의 동력을 전달하기 위한 벨트(430)와, 상기 벨트(430)가 걸린 상태로 동력을 전달받는 풀리(420) 그리고, 상기 드럼에 결합되며, 상기 풀리(420)의 회전에 연동하는 구동축(410) 등을 포함하여 구성된다.The drum 200 is rotated by the power transmitted from the driving device 400. The driving device 400 includes a motor 440 and a belt for transmitting power from the motor 440. 430, a pulley 420 that receives power while the belt 430 is engaged, and a drive shaft 410 coupled to the drum and interlocked with the rotation of the pulley 420.

이러한 구동장치(400)에서 발생하는 회전동력이 상기 드럼(200)에 전달되면서, 드럼(200)이 회전하게 되고, 이러한 회전에 의하여 세탁물의 세탁이 수행되는 것이다. As the rotational power generated by the driving device 400 is transmitted to the drum 200, the drum 200 is rotated, and the laundry is washed by the rotation.

그리고, 이러한 드럼세탁기는 상기 외부케이스(100) 전면에 세탁물 투입 및 인출을 위한 도어부(500)가 구비된다.In addition, the drum washing machine is provided with a door part 500 for loading and withdrawing laundry on the front of the outer case 100.

도 2 및 도 3에 도시된 바와 같이, 종래의 도어부(500)는 도어의 본체를 이루는 도어케이스(510)와, 상기 드럼세탁기 본체의 래치홀더(530)와 결합 및 탈거되는 래치(520))와, 상기 도어케이스(510) 일측에 구비되며, 도어가 개폐되도록 조작되는 손잡이(540)로 구성된다.As shown in FIGS. 2 and 3, the conventional door part 500 includes a door case 510 constituting the main body of the door, and a latch 520 coupled to and removed from the latch holder 530 of the drum washing machine main body. And a handle 540 provided on one side of the door case 510 and operated to open and close the door.

상기와 같이 구성된 도어부(500)의 작동을 간략히 설명하면, 사용자가 도어를 개방하고자 할 때, 도어케이스(510) 전면 일측에 형성된 손잡이(540)를 조작함으로써, 상기 도어가 회동을 하게 되고, 상기 도어의 회동에 따라 도어 닫힘시 결합되었던 상기 래치(520)가 래치홀더(530)로부터 탈거되면서 도어가 열리게 된다.Briefly describing the operation of the door unit 500 configured as described above, when the user wants to open the door, by operating the handle 540 formed on one side of the front of the door case 510, the door is rotated, As the door is rotated, the latch 520, which is coupled when the door is closed, is removed from the latch holder 530, thereby opening the door.

상기한 바와 같이 구성된 드럼세탁기의 운전 중에 사용자가 도어를 개방했을 때, 이미 도어는 개방된 상태이지만, 드럼(200)은 그 관성에 의해 바로 멈추지 못하고 도어가 개방된 후 수초 뒤에 멈추게 된다.When the user opens the door during operation of the drum washing machine configured as described above, the door is already open, but the drum 200 does not stop immediately by its inertia but stops a few seconds after the door is opened.

이로 인해, 드럼 내의 세제ㆍ세탁수ㆍ세탁물이 빠져 나와 주변을 더럽히게 되는 문제점이 있다.For this reason, there exists a problem that the detergent, the washing water, and the washing | cleaning thing in a drum come out and become dirty.

본 발명은 상기한 종래의 문제를 해결하기 위해 안출한 것으로서, 드럼세탁기가 운전 중에, 사용자가 도어를 개방하고자 할 때, 도어가 개방되기 전에 미리 드럼세탁기의 작동을 멈추게 하여, 세제ㆍ세탁수ㆍ세탁물이 빠져 나와 주변을 더럽히게 됨을 사전에 방지할 수 있도록 한 드럼세탁기의 도어부를 제공하는데 그 목적이 있다.DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problem, and when the user tries to open the door while the drum washing machine is in operation, the operation of the washing machine is stopped before the door is opened, and the detergent, washing water, It is an object of the present invention to provide a door of the drum washing machine to prevent the laundry from coming out and dirty the surroundings.

상기의 목적을 달성하기 위하여, 본 발명은 도어의 본체를 이루는 도어케이스와, 상기 도어케이스 일측에 구비되어 도어를 개폐하도록 조작하는 손잡이와, 상기 손잡이에 인체가 접촉됨을 감지하는 감지장치 그리고, 상기 감지장치로부터 감지신호가 전달될 경우 각종 부하의 전원을 차단하도록 구성된 제어부가 포함됨을 특징으로 하는 드럼세탁기의 도어부를 제공한다.In order to achieve the above object, the present invention is a door case constituting the main body of the door, the handle is provided on one side of the door case to operate to open and close the door, a sensing device for detecting the human body in contact with the handle, and When the detection signal is transmitted from the sensing device provides a door unit of the drum washing machine, characterized in that the control unit is configured to cut off the power of various loads.

이하, 본 발명의 실시예에 대하여 첨부도면 도 4 및 도 5를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, FIGS. 4 and 5.

참고로 본 발명의 구성을 설명하기에 앞서, 설명의 중복을 피하기 위하여 종래의 기술과 일치하는 부분에 대해서는 종래 도면 부호를 그대로 인용하기로 한다.For reference, prior to describing the configuration of the present invention, in order to avoid duplication of description, the same reference numerals as those of the prior art will be referred to.

먼저, 도 4는 본 발명에 따른 정정용량센서가 구비된 도어부의 작동원리를 개략적으로 나타낸 개략도이고, 도 5는 정전용량센서가 구비된 도어부의 제어를 나타낸 구성도이다.First, Figure 4 is a schematic diagram showing the operating principle of the door unit with a capacitance sensor according to the present invention, Figure 5 is a block diagram showing the control of the door unit with a capacitive sensor.

즉, 본 발명에 따른 드럼세탁기의 도어부(500)는 도어의 본체를 이루는 도어케이스(510)와, 상기 도어케이스(510) 일측에 구비되며, 도어를 열고 닫을 수 있도록 형성된 손잡이(540)와, 사용자가 도어를 개방하기 위해 상기 손잡이(540)에 손을 접촉했을 때, 이를 감지하도록 구비된 감지장치를 가진다.That is, the door part 500 of the drum washing machine according to the present invention includes a door case 510 constituting the main body of the door, a handle 540 provided at one side of the door case 510, and formed to open and close the door. When the user touches the hand with the handle 540 to open the door, it has a sensing device provided to detect this.

또한, 상기 감지장치로부터 감지신호를 전달받아 각종 부하의 전원이 차단되도록 구성된 제어부(MICOM)가 더 포함된다.In addition, the control unit (MICOM) is configured to receive the detection signal from the detection device is cut off the power of various loads.

여기서, 상기 감지장치는 도전성재질로 형성된 접촉부(550)와, 상기 접촉부(550)로부터 전달되는 전하의 변동을 감지하여, 상기 제어부로 감지신호를 제공하는 정전용량센서(560)를 포함하여 구성된다.Here, the sensing device includes a contact portion 550 formed of a conductive material, and a capacitive sensor 560 for detecting a change in charge transferred from the contact portion 550 and providing a detection signal to the controller. .

여기서, 상기 도전성재질은 미세한 전하량에도 감지할 수 있도록 도전성이 높은 금속 혹은, 도전성 플라스틱 재질로 형성됨이 바람직하다.Here, the conductive material is preferably formed of a highly conductive metal or a conductive plastic material so that even a small amount of charge can be detected.

또한, 상기 손잡이(540)에는 상기 접촉부(550)를 수용하기 위해, 도어를 열기 위한 사람의 손가락이 굽어져 닿는 면 즉, 손잡이의 배면에 장착 고정될 수 있도록 안착홈(551)이 구비며, 상기 접촉부(550)는 손잡이(540)를 잡는 사람의 손과 반드시 접촉할 수 있는 넓이(W)로 형성됨이 바람직하다.In addition, the handle 540 is provided with a seating groove 551 so as to accommodate the contact portion 550, a person's finger for opening the door is bent and touched, that is, fixed to the back of the handle, The contact portion 550 is preferably formed in a width (W) that can be in contact with the hand of the person holding the handle 540.

또한, 상기 정전용량센서(560)는 접촉부(550)와 같이 상기 손잡이(540) 배면에 구비될 수도 있지만, 상기 도어의 개폐 작용으로 인한 충격으로 고장의 우려가 있기 때문에, 상기 도어 내부의 적절한 곳에 위치하는 것이 바람직하다.In addition, the capacitive sensor 560 may be provided on the rear surface of the handle 540 like the contact portion 550, but may be damaged due to an impact caused by the opening / closing action of the door. Preferably located.

상기 제어부는 상기 도어를 개방전 감지장치의 감지신호에 의해 에러메세지가 발생되도록 한 것을 특징으로 하며, 상기 발생된 메세지는 드럼세탁기 본체의 액정표시판(미도시)에 표시되어, 사용자에게 에러를 알린 후 상기 드럼세탁기의 각종 부하의 전원을 차단하도록 구성됨을 특징으로 한다.The control unit is characterized in that an error message is generated by the detection signal of the sensor before opening the door, the generated message is displayed on the liquid crystal panel (not shown) of the drum washing machine main body to inform the user of the error After characterized in that configured to cut off the power of the various loads of the drum washing machine.

다음은 본 발명에 따른 드럼세탁기의 도어부에 대한 실시예를 통하여 동작원리를 설명하면 다음과 같다.Next will be described the principle of operation through the embodiment of the door of the drum washing machine according to the present invention.

사용자가 도어를 개방하고자 할 때, 손잡이를 당기게 되는데, 이때, 인체의 손은 손잡이(540) 배면에 형성된 접촉부(550)에 닿게 된다.When the user intends to open the door, the user pulls the handle. At this time, the human hand touches the contact portion 550 formed on the rear surface of the handle 540.

이때, 도전성 재질의 상기 접촉부(550)와 인체 사이에 전하의 이동이 발생되며, 상기 접촉부(550)에 연결된 상기 정전용량센서(560)가 이 전하의 변동량을 감지한다.At this time, the movement of the charge is generated between the contact portion 550 and the human body of the conductive material, the capacitance sensor 560 connected to the contact portion 550 detects the amount of change in the charge.

상기 정전용량센서(560)로부터 감지된 감지신호는 상기 정전용량센서(560)와 연결된 상기 제어부로 제공되며, 상기 감지신호를 제공받은 제어부는 사용자가 도어를 개방하기전 즉, 상기 사용자의 손이 상기 손잡이(540)의 접촉부(550)에 닿는 순간 각종 부하의 전원을 차단하여 드럼세탁기의 작동을 멈추게 한다.The detection signal detected from the capacitive sensor 560 is provided to the control unit connected to the capacitive sensor 560, the control unit provided with the detection signal is before the user opens the door, that is, the user's hand The moment of touching the contact portion 550 of the handle 540 cuts off the power of various loads to stop the operation of the drum washing machine.

또한, 전술한 실시예에서는 손잡이(540) 배면에 도전성재질의 접촉부(550)가 별도로 설치되었으나, 손잡이(540)의 재질이 도전성재질로 이루어지면, 상기와 같은 별도의 도전성재질의 접촉부(550)를 설치할 필요 없이, 상기 도전성재질로 이루어진 손잡이(540)의 일측에 정전용량센서(560)를 결합하여 구성할 수도 있다.In addition, in the above-described embodiment, the contact portion 550 of the conductive material is separately installed on the back of the handle 540, but if the material of the handle 540 is made of the conductive material, the contact portion 550 of the separate conductive material as described above. Without the need to install, the capacitive sensor 560 may be coupled to one side of the handle 540 made of the conductive material.

전술한 바와 같이, 드럼세탁기가 운전 중에 상기 도어가 개방될 때, 상기 진술한 정전용량센서(560)가 작동되어, 상기 도어가 개방되기 전에 각종 부하가 멈춤으로써, 드럼세탁기 내의 세제ㆍ세탁수ㆍ세탁물이 빠져 나와 주변을 더럽히게 됨을 사전에 방지할 수 있다.As described above, when the door is opened while the drum washing machine is in operation, the above-mentioned capacitive sensor 560 is operated, and various loads are stopped before the door is opened, whereby the detergent, washing water and the like in the drum washing machine are stopped. You can prevent laundry from coming out and soiling the surroundings.

이상에서와 같이, 본 발명은 드럼세탁기가 운전 중에 사용자가 도어를 개방하고자 할 때, 정전용량센서가 작동하여 도어가 개방되기 전에 이를 미리 감지함으로써, 세제ㆍ세탁수ㆍ세탁물이 빠져 나와 주변을 더럽히게 됨을 사전에 방지할 수 있는 효과가 있다.As described above, according to the present invention, when the user attempts to open the door while the drum washing machine is in operation, the capacitive sensor operates in advance to detect the door before the door is opened. There is an effect that can be prevented in advance.

도 1은 일반적인 드럼세탁기의 구성을 간략히 나타낸 단면도1 is a cross-sectional view briefly showing the configuration of a general drum washing machine

도 2는 종래의 드럼세탁기의 도어가 개방된 상태를 간략히 나타낸 개략도Figure 2 is a schematic diagram showing a simplified state of the door of the conventional drum washing machine open

도 3은 종래의 드럼세탁기의 도어가 닫혀진 상태를 간략히 나타낸 개략도Figure 3 is a schematic diagram showing a simplified state of the door of the conventional drum washing machine

도 4는 본 발명에 따른 정정용량센서가 구비된 도어부의 작동원리를 개략적으로 나타낸 개략도Figure 4 is a schematic diagram showing the operating principle of the door unit with a capacitance correction sensor according to the present invention

도 5는 본 발명에 따른 정전용량센서가 구비된 도어부의 제어를 나타낸 구성도.Figure 5 is a block diagram showing the control of the door unit with a capacitive sensor according to the present invention.

* 도면의 주요 부분에 대한 주요 설명 *Major description of the main parts of the drawing

100: 외부케이싱 200: 드럼100: outer casing 200: drum

300: 터브 400: 구동장치300: Tub 400: Drive

410: 구동축 420: 풀리410: drive shaft 420: pulley

430: 벨트 440: 모터430: belt 440: motor

500: 도어부 510: 도어케이스500: door part 510: door case

520: 래치 530: 래치홀더520: latch 530: latch holder

540: 손잡이 550: 접촉부540: handle 550: contact

560: 정전용량센서560 capacitive sensor

Claims (3)

도어의 본체를 이루는 도어케이스와;A door case constituting the main body of the door; 상기 도어케이스 일측에 구비되어 도어를 개폐하도록 조작하는 손잡이와;A handle provided at one side of the door case and configured to open and close the door; 상기 손잡이에 인체가 접촉됨을 감지하는 감지장치; 그리고,A sensing device that detects contact of the human body with the handle; And, 상기 감지장치로부터 감지신호가 전달될 경우 각종 부하의 전원을 차단하도록 구성된 제어부:가 포함됨을 특징으로 하는 드럼세탁기의 도어부.And a control unit configured to cut off power of various loads when a detection signal is transmitted from the detection device. 제 1항에 있어서, The method of claim 1, 상기 감지장치는 도전성재질의 접촉부; 그리고,The sensing device includes a contact portion of a conductive material; And, 상기 접촉부로부터 전달되는 전하의 변동을 감지하여 상기 제어부로 감지신호를 제공하는 정전용량센서가 포함됨을 특징으로 하는 드럼세탁기의 도어부.And a capacitive sensor for detecting a change in electric charge transmitted from the contact unit and providing a detection signal to the control unit. 제 2항에 있어서,The method of claim 2, 상기 접촉부는 손잡이의 내측면에 요입 장착됨을 특징으로 하는 드럼세탁기의 도어부.The contact portion of the door of the drum washing machine, characterized in that the inlet is mounted on the inner surface of the handle.
KR1020030059088A 2003-08-26 2003-08-26 Door unit of drum-type washing machine KR20050022063A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104711825A (en) * 2015-04-03 2015-06-17 惠而浦（中国）股份有限公司 Roller washing machine door cover with color screen display and touch control functions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104711825A (en) * 2015-04-03 2015-06-17 惠而浦（中国）股份有限公司 Roller washing machine door cover with color screen display and touch control functions

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