KR19980049713U - Balance weight structure of washing machine - Google Patents

Balance weight structure of washing machine Download PDF

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Publication number
KR19980049713U
KR19980049713U KR2019960062878U KR19960062878U KR19980049713U KR 19980049713 U KR19980049713 U KR 19980049713U KR 2019960062878 U KR2019960062878 U KR 2019960062878U KR 19960062878 U KR19960062878 U KR 19960062878U KR 19980049713 U KR19980049713 U KR 19980049713U
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KR
South Korea
Prior art keywords
washing
tank
balance weight
water
washing machine
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KR2019960062878U
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Korean (ko)
Inventor
박관철
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배순훈
대우전자 주식회사
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Priority to KR2019960062878U priority Critical patent/KR19980049713U/en
Publication of KR19980049713U publication Critical patent/KR19980049713U/en

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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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
    • D06F37/245—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
    • 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
    • D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

본 고안은 세탁기의 밸런스웨이트구조에 있어서, 세탁조 상단의 밸런스웨이트구조를 개선하여 탈수시 세탁물이 세탁조 상단으로 이탈되어 수조와 세탁조 사이에 끼는 현상을 방지함으로서 세탁물의 손상 및 세탁기의 파손을 방지한 세탁기의 밸런스웨이트구조를 제공하기 위하여, 수조 내부에 교반날개와 세탁조가 설치되고 상기 수조 저면에 설치된 동력절환부재에 의해 상기 교반날개 및 세탁조가 선택적으로 회전됨에 있어서, 상기 세탁조의 상단 내주면에 원형테로 형성된 밸런스웨이트와, 상기 밸런스웨이트의 내주면을 따라 상단으로 돌출된 리브가 형성됨을 특징으로 한다.The present invention improves the balance weight structure of the washing machine in the balance weight structure of the washing machine to prevent the laundry from being separated between the water tank and the washing tank when dewatering to prevent the phenomenon of laundry and damage to the washing machine. In order to provide a balanced weight structure, the stirring blade and the washing tank is installed inside the tank and the stirring blade and the washing tank are selectively rotated by a power switching member installed on the bottom of the tank, the upper inner peripheral surface of the washing tank formed in a circular frame A balance weight and ribs protruding upward along the inner circumferential surface of the balance weight are formed.

Description

세탁기의 밸런스웨이트구조Balance weight structure of washing machine

본 고안은 세탁기의 밸런스웨이트구조에 관한 것으로서, 보다 상세하게는 세탁조 상단의 밸런스웨이트구조를 개선하여 탈수시 세탁물이 세탁조 상단으로 이탈되어 수조와 세탁조 사이에 끼는 현상을 방지함으로서 세탁물의 손상 및 세탁기의 파손을 방지한 세탁기의 밸런스웨이트구조에 관한 것이다.The present invention relates to a balance weight structure of a washing machine, and more particularly, to improve the balance weight structure of the upper end of the washing tank to prevent the laundry from being separated to the upper end of the washing tank to prevent the phenomenon between the water tank and the washing tank when dewatering, the damage of the laundry and the washing machine. The balance weight structure of the washing machine which prevented damage.

도 1은 종래 세탁기의 개략적인 단면도로서, 직사각형의 본체(1)와, 내부에 일정량의 세탁수가 담수되는 수조(2)가 구비된다.1 is a schematic cross-sectional view of a conventional washing machine, which has a rectangular main body 1 and a water tank 2 in which a certain amount of washing water is fresh.

상기 수조(2)는 본체(1) 상단의 수직하부로 형성된 걸이봉(7a)에 의해 내부에 매달려 설치되고, 상기 수조(2) 내부에 원통형의 세탁조(3)가 회전 가능한 상태로 설치되며, 상기 세탁조(3)는 측벽을 관통하는 다수의 구멍(3a)이 형성된다.The water tank 2 is installed hanging inside by a hook rod (7a) formed in the vertical lower portion of the upper end of the main body 1, the cylindrical washing tank 3 is installed in the water tank (2) in a rotatable state, The washing tub 3 is formed with a plurality of holes 3a passing through the side wall.

한편, 세탁조(3)의 내부 바닥에 교반날개(4)가 회전 가능토록 설치되고, 상단에는 원주면을 따라 내부에 액체가 내장된 밸런스웨이트(3b)가 형성된다.On the other hand, the stirring blade 4 is rotatably installed on the inner bottom of the washing tank 3, the upper end is formed with a balance weight (3b) is built in the liquid along the circumferential surface.

수조(2)의 저면 중앙에 모터(5)로 회전되는 동력절환부재(6)가 설치된다. 상기 동력절환부재(6)는 상부에 세탁축(6a)과 탈수축(6b)이 형성되며 세탁축(6a)은 교반날개(4)와 결합되고 탈수축(6b)은 세탁조(3)의 저면에 결합된다.In the center of the bottom surface of the water tank 2, a power switching member 6 rotated by the motor 5 is installed. The power switching member 6 has a washing shaft (6a) and a dewatering shaft (6b) is formed on the upper side, the washing shaft (6a) is combined with the stirring blade (4) and the dewatering shaft (6b) is the bottom of the washing tank (3) Is coupled to.

본체(1)의 일측 하부에 필터(9a)가 설치되고 수조(2) 상단에 상기 필터(9a)를 거친 세탁수를 세탁조(3) 내부로 살수하는 살수관(8)이 형성된다. 또한, 수조(2) 저면과 필터(9a)가 호스(9b)로 연결되며 필터(9a)와 살수관(8)사이에 펌프(9)가 설치되고, 상기 펌프(9) 후방에 배수밸브(9c)가 설치된다.A filter 9a is installed at one lower side of the main body 1, and a sprinkling pipe 8 for sprinkling the washing water passing through the filter 9a into the washing tank 3 is formed at the top of the water tank 2. Further, the bottom of the water tank 2 and the filter 9a are connected by a hose 9b, and a pump 9 is installed between the filter 9a and the sprinkling pipe 8, and a drain valve behind the pump 9 is provided. 9c) is installed.

이처럼 구성된 종래의 세탁기는 세탁조(3) 내부에 빨랫감이 담기고 세탁수가 급수된 상태에서 모터(5)가 정역회전되면 이의 회전력이 동력절환부재(6)로 전달되고 동력절환부재(6)에서 감속된 다음 그 회전력이 세탁축(6a)을 통하여 교반날개(4) 쪽으로 전달된다.In the conventional washing machine configured as described above, when the motor 5 is reversely rotated in the state in which the laundry is contained in the washing tub 3 and the washing water is supplied, the rotational force thereof is transmitted to the power switching member 6 and the power reduction member 6 is decelerated. Then, the rotational force is transmitted to the stirring blade 4 through the washing shaft (6a).

따라서, 교반날개(4)가 정역회전되면 세탁수가 회전수류를 일으키게 되고 회전수류에 의해 빨랫감이 서로 비벼지면서 세탁이 진행된다.Therefore, when the stirring blade 4 is rotated forward and reverse, the washing water causes a rotational water flow, and the washing progresses while the laundry is rubbed against each other by the rotational water flow.

또한, 세탁과정에서 세탁수의 일부가 세탁조(3) 상부의 살수관(8) 쪽으로 펌핑되고 펌핑된 세탁수가 세탁조(3) 내부로 살수된다. 즉 펌프(9)가 작동되면 수조(2) 하단과 연결된 호스(9b)를 통하여 세탁수가 필터(9a)를 거쳐 이 물질이 걸러진 후 살수관(8) 쪽으로 펌핑되고 펌핑된 세탁수가 세탁조(3) 내부로 살수되면서 세탁성이 향상된다.In addition, in the washing process, a part of the washing water is pumped toward the sprinkling pipe 8 above the washing tank 3, and the pumped washing water is sprayed into the washing tank 3. That is, when the pump 9 is operated, the wash water is filtered through the filter 9a through the hose 9b connected to the bottom of the water tank 2, and then the pumped wash water is pumped toward the water spray pipe 8, and the pumped wash water 3 It can be sprayed inside to improve washability.

세탁완료 후 배수밸브(9c)가 개방되면 수조(2)저면의 호스(9b)를 통하여 세탁수가 외부로 완전히 배수된 다음 탈수가 진행된다.After the washing is completed, when the drain valve 9c is opened, the washing water is completely drained to the outside through the hose 9b on the bottom of the water tank 2, and then dehydration proceeds.

탈수과정에서 모터(5)가 고속회전되면 동력절환부재(6)에 의해 세탁축(6a)과 함께 탈수축(6b)이 고속회전되고 이에 따라 세탁조(3)가 고속회전된다.When the motor 5 is rotated at high speed in the dehydration process, the dehydration shaft 6b is rotated at high speed together with the washing shaft 6a by the power switching member 6, and the washing tank 3 is rotated at high speed.

따라서, 세탁물의 수분이 구멍(3a)을 통해 수조(2)로 유입되고, 그 하단의 호스(9b)를 거쳐 배수밸브(9c)에 의해 외부로 배수되어 제거됨으로서 모든 세탁에 관련된 수행과정이 종료된다.Therefore, the water of the laundry flows into the water tank 2 through the hole 3a, and is drained to the outside by the drain valve 9c through the hose 9b at the bottom thereof and removed. do.

이때, 상기 세탁조(3) 상단의 밸런스웨이트(3b)는 세탁물의 편중을 보정하여 세탁조(2)가 편심 회전되는 것을 방지한다.At this time, the balance weight (3b) of the upper end of the washing tank 3 corrects the bias of the laundry to prevent the washing tank 2 from being eccentrically rotated.

이와 같은 종래의 세탁기는 세탁조 상단의 밸런스웨이트와 수조의 틈새가 넓어서 탈수시 세탁물이 상기 세탁조 상단으로 이탈되어 수조와 세탁조 사이에 낌으로서 세탁물이 손상되거나 세탁기 자체가 과부하에 의하여 파손되는 문제점이 있었다.Such a conventional washing machine has a problem that the gap between the balance weight of the upper end of the washing tank and the water tank is wide so that the laundry is separated to the upper end of the washing tank when the water is dehydrated and caught between the water tank and the washing tank so that the laundry is damaged or the washing machine itself is broken by an overload.

본 고안은 상기와 같은 문제점을 감안하여 창출한 것으로서 세탁조 상단의 밸런스웨이트구조를 개선하여 탈수시 세탁물이 세탁조 상단으로 이탈되어 수조와 세탁조 사이에 끼는 현상을 방지함으로서 세탁물의 손상 및 세탁기의 파손을 방지한 세탁기의 밸런스웨이트구조를 제공함에 그 목적이 있다.The present invention was created in view of the above problems, and improves the balance weight structure of the upper end of the washing tank to prevent the laundry from being separated to the upper end of the washing tank and being caught between the water tank and the washing tank during dehydration, thereby preventing damage to the laundry and damage to the washing machine. The purpose is to provide a balance weight structure of a washing machine.

도 1은 종래 세탁기를 도시한 단면도.1 is a cross-sectional view showing a conventional washing machine.

도 2는 본 고안 세탁기를 도시한 단면도.Figure 2 is a sectional view showing the subject innovation washing machine.

도 3은 본 고안 세탁기의 밸런스웨이트구조를 도시한 요부사시도.Figure 3 is a yobu perspective view showing a balance weight structure of the subject innovation washing machine.

도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings

2-수조,3-세탁조,2-water bath, 3-wash bath,

4-교반날개,6-동력절환부재,4-stirring wing, 6- power switching member,

10-밸런스웨이트,11-리브.10-balance weight, 11-rib.

상기와 같은 목적을 달성하기 위하여 본 고안은 수조 내부에 교반날개와 세탁조가 설치되고 상기 수조 저면에 설치된 동력절환부재에 의해 상기 교반날개 및 세탁조가 선택적으로 회전됨에 있어서, 상기 세탁조의 상단 내주면에 원형테로 형성된 밸런스웨이트와, 상기 밸런스웨이트의 내주면을 따라 상단으로 돌출된 리브가 형성됨을 특징으로 한다.In order to achieve the above object, the present invention has a stirring blade and a washing tank installed inside the tank, and the stirring blade and the washing tank are selectively rotated by a power switching member installed on the bottom of the tank, the upper inner peripheral surface of the washing tank is circular A balance weight formed of a frame and ribs protruding upward along the inner circumferential surface of the balance weight are formed.

이하 본 고안의 바람직한 일실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 고안 세탁기를 도시한 단면도이고, 도 3은 본 고안 세탁기의 밸런스웨이트구조를 도시한 요부사시도로서 도 1과 동일한 구성요소는 동일부호를 사용하여 설명한다.FIG. 2 is a cross-sectional view showing a washing machine of the present invention, and FIG. 3 is a main part perspective view showing a balance weight structure of the washing machine of the present invention, and the same components as in FIG. 1 will be described using the same reference numerals.

직사각형의 본체(1)가 구비되고, 내부에 일정량의 세탁수가 담수되는 수조(2)가 상기 본체(1) 상단으로부터 수직하부로 형성된 걸이봉(7a)에 의해 상기 본체(1)의 내부에 매달려 설치된다.A rectangular main body 1 is provided, and a water tank 2 in which a certain amount of washing water is freshly suspended is suspended inside the main body 1 by a hook rod 7a formed vertically downward from an upper end of the main body 1. Is installed.

상기 수조(2) 내부에 원통형의 세탁조(3)가 회전 가능한 상태로 설치되며, 상기 세탁조(3)는 측벽을 관통하는 다수의 구멍(3a)이 형성되어 세탁조(3) 내부로 공급되는 세탁수를 수조(2) 쪽으로 흘려 보내 세탁조(3)와 수조(2)의 수위를 일치시키고 또한, 이들 구멍(3a)은 탈수과정에서 젖은 빨랫감으로부터 발생되는 세탁수를 수조(2) 쪽으로 배출한다.The cylindrical washing tub 3 is rotatably installed in the water tank 2, and the washing tub 3 is formed with a plurality of holes 3a penetrating through sidewalls, and the washing water is supplied into the washing tub 3. Flows toward the water tank 2 to match the water level of the washing tank 3 and the water tank 2, and these holes 3a discharge the washing water generated from the wet clothes during the dewatering process toward the water tank 2.

한편, 세탁조(3)의 상단 내주면에 원형테의 밸런스웨이트가(10)가 구비되고 상기 밸런스웨이트(10)의 상단에 리브(11)가 구비되어 세탁물의 외부 이탈이 방지된다.On the other hand, the balance weight 10 of the circular frame is provided on the inner peripheral surface of the upper end of the washing tank 3 and the rib 11 is provided on the upper end of the balance weight 10 to prevent the external departure of the laundry.

또한, 세탁조(3)의 내부 바닥에 교반날개(4)가 회전 가능토록 설치된다. 교반날개(4)는 세탁과정에서 정역회전되는 것으로서, 세탁조(3) 내부로 급수된 세탁수를 휘저어 회전수류를 일으킨다.In addition, the stirring blade 4 is rotatably installed on the inner bottom of the washing tank (3). Stirring blade (4) is to be rotated forward and reverse in the washing process, to stir the wash water supplied into the washing tank (3) to generate a rotary water flow.

수조(2)의 저면 중앙에 모터(5)로 회전되는 동력절환부재(6)가 설치된다. 상기 동력절환부재(6)는 상부에 세탁축(6a)과 탈수축(6b)이 형성되며 세탁축(6a)은 교반날개(4)와 결합되고 탈수축(6b)은 세탁조(3)의 저면에 결합된다.In the center of the bottom surface of the water tank 2, a power switching member 6 rotated by the motor 5 is installed. The power switching member 6 has a washing shaft (6a) and a dewatering shaft (6b) is formed on the upper side, the washing shaft (6a) is combined with the stirring blade (4) and the dewatering shaft (6b) is the bottom of the washing tank (3) Is coupled to.

본체(1)의 일측 하부에 필터(9a)가 설치되고 수조(2) 상단에 상기 필터(9a)를 거친 세탁수를 세탁조(3) 내부로 살수하는 살수관(8)이 형성된다. 또한, 수조(2) 저면과 필터(9a)가 호스(9b)로 연결되며 필터(9a)와 살수관(8)사이에 펌프(9)가 설치되고, 상기 펌프(9) 후방에 배수밸브(9c)가 설치되어 세탁수를 외부로 배수시킨다.A filter 9a is installed at one lower side of the main body 1, and a sprinkling pipe 8 for sprinkling the washing water passing through the filter 9a into the washing tank 3 is formed at the top of the water tank 2. Further, the bottom of the water tank 2 and the filter 9a are connected by a hose 9b, and a pump 9 is installed between the filter 9a and the sprinkling pipe 8, and a drain valve behind the pump 9 is provided. 9c) is installed to drain the wash water to the outside.

상기와 같이 구성된 본 고안의 작용을 상세히 설명하면 다음과 같다.Referring to the operation of the subject innovation configured as described above in detail.

이처럼 구성된 본 고안은 모터(5)에 의해 회전되는 동력절환부재(6)의 작동으로 교반날개(4)가 정역회전되면 수류가 발생되고 수류에 의해 세탁물이 상호 충돌되면서 세탁이 진행되고, 살수관(8)으로부터 세탁수가 살수되어 세탁력이 향상된다.The present invention configured as described above is a water flow is generated when the stirring blade (4) is reversed by the operation of the power switching member 6 rotated by the motor (5) and the washing proceeds as the laundry collides with each other by the water flow, the sprinkling pipe Washing water is sprinkled from (8), and washing power is improved.

그리고, 세탁이 완료되면 호스(9b)를 거쳐 배수밸브(9c)로 세탁수가 배수된 다음 탈수가 진행된다.When the washing is completed, the washing water is drained to the drain valve 9c via the hose 9b, and then dehydration proceeds.

초기 탈수시 세탁조(3) 내부에 세탁물이 불규칙하게 놓여진다.In the initial dehydration, the laundry is placed irregularly in the washing tank (3).

따라서, 동력절환부재(5)의 작동으로 세탁조(3)가 고속회전되면 불규칙하게 놓여진 세탁물에 의해 세탁조(3)가 진동하게 된다.Therefore, when the washing tub 3 is rotated at a high speed by the operation of the power switching member 5, the washing tub 3 vibrates due to the irregularly placed laundry.

특히 세탁조(3)는 하부의 동력절환부재(5)를 중심으로 회전됨에 따라 세탁조(3)의 상부가 하부에 비하여 진동 폭이 커진다. 이때 세탁조(3) 상부의 밸런스웨이트(10) 내부에 내장된 액체가 회전됨에 따라 편심이 보정된다.In particular, as the washing tub 3 is rotated around the power switching member 5 in the lower portion, the upper portion of the washing tub 3 is larger in width than the lower portion. At this time, the eccentricity is corrected as the liquid contained in the balance weight 10 inside the washing tank 3 is rotated.

한편, 이와 같은 고속회전시 세탁조(3) 상단의 세탁물이 원심력에 의해 세탁조(3)의 외측으로 쌓이게 되어 상기 세탁조(3)의 상단으로 이탈될 우려가 발생한다.On the other hand, the laundry at the upper end of the washing tank (3) at such a high speed rotation accumulates to the outside of the washing tank (3) by the centrifugal force, there is a fear that the upper side of the washing tank (3).

그러나 본 고안은 상기 밸런스웨이트(10) 상단에 리브(11)가 설치되어 세탁조(3) 상단의 높이를 더 높게 하여 보강함으로서 상기 세탁물의 이탈을 방지하는 것이다.However, the present invention is to prevent the departure of the laundry by reinforcing the height of the upper end of the washing tank (3) is installed to the top of the balance weight (10).

따라서, 세탁조(3) 내부의 수분이 구멍(3a)을 통하여 수조(2)쪽으로 배출되고 이후, 수조(2)저면의 호스(9b)를 통하여 외부로 배출되어 탈수행정이 완료된다.Therefore, the water in the washing tank 3 is discharged to the water tank 2 through the hole 3a, and then discharged to the outside through the hose 9b of the bottom of the water tank 2, and the dehydration process is completed.

본 고안은 상기 일실시예에서 설명된 내용에 국한하지 않으며, 본 고안의 사상과 원리에 벗어남이 없이 실용신안등록청구의범위에 기재된 내용에 포함되는 모든 수정, 변형 및 개량을 이에 포함하고자 한다.The present invention is not limited to the contents described in the embodiment, it is intended to include all modifications, variations and improvements included in the contents of the utility model registration claims without departing from the spirit and principles of the present invention.

본 고안은 세탁조 상단의 밸런스웨이트구조를 개선하여 탈수시 세탁물이 세탁조 상단으로 이탈되어 수조와 세탁조 사이에 끼는 현상을 방지함으로서 세탁물의 손상 및 세탁기의 파손을 방지하는 효과가 있다.The present invention improves the balance weight structure of the upper end of the washing tank to prevent the laundry from being separated to the upper end of the washing tank when dehydration is caught between the water tank and the washing tank to prevent damage to the laundry and breakage of the washing machine.

또한, 상기 세탁조의 높이가 더 높게 보강됨으로서 세탁조의 저장용량이 증가하는 다른 효과도 있다.In addition, there is another effect that the storage capacity of the washing tank is increased by the height of the washing tank is reinforced.

Claims (1)

수조(2) 내부에 교반날개(4)와 세탁조(3)가 설치되고 상기 수조(2) 저면에 설치된 동력절환부재(6)에 의해 상기 교반날개(4) 및 세탁조(2)가 선택적으로 회전됨에 있어서, 상기 세탁조(3)의 상단 내주면에 원형테로 형성된 밸런스웨이트(10)와, 상기 밸런스웨이트(10)의 내주면을 따라 상단으로 돌출된 리브(11)가 형성됨을 특징으로 하는 세탁기의 밸런스웨이트구조.The stirring blade 4 and the washing tank 3 are installed in the water tank 2, and the stirring blade 4 and the washing tank 2 are selectively rotated by the power switching member 6 installed on the bottom of the water tank 2. The weight balance of the washing machine, characterized in that the balance weight 10 formed in a circular frame on the upper inner circumferential surface of the washing tank 3 and the rib 11 protruding upward along the inner circumferential surface of the balance weight 10 are formed. rescue.
KR2019960062878U 1996-12-30 1996-12-30 Balance weight structure of washing machine KR19980049713U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10494750B2 (en) 2015-06-30 2019-12-03 Samsung Electronics Co., Ltd. Washing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10494750B2 (en) 2015-06-30 2019-12-03 Samsung Electronics Co., Ltd. Washing machine
US11306425B2 (en) 2015-06-30 2022-04-19 Samsung Electronics Co., Ltd. Washing machine
US11326296B2 (en) 2015-06-30 2022-05-10 Samsung Electronics Co., Ltd. Washing machine
US11814773B2 (en) 2015-06-30 2023-11-14 Samsung Electronics Co., Ltd. Washing machine
US11905639B2 (en) 2015-06-30 2024-02-20 Samsung Electronics Co., Ltd. Washing machine

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