KR100366691B1 - Vibration Prevention Device of Drum Washing Machine - Google Patents

Vibration Prevention Device of Drum Washing Machine Download PDF

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Publication number
KR100366691B1
KR100366691B1 KR10-1998-0022794A KR19980022794A KR100366691B1 KR 100366691 B1 KR100366691 B1 KR 100366691B1 KR 19980022794 A KR19980022794 A KR 19980022794A KR 100366691 B1 KR100366691 B1 KR 100366691B1
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KR
South Korea
Prior art keywords
balance weight
vibration
fixing tank
washing machine
drum washing
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Application number
KR10-1998-0022794A
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Korean (ko)
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KR20000002191A (en
Inventor
박찬우
Original Assignee
삼성전자 주식회사
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Priority to KR10-1998-0022794A priority Critical patent/KR100366691B1/en
Publication of KR20000002191A publication Critical patent/KR20000002191A/en
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Publication of KR100366691B1 publication Critical patent/KR100366691B1/en

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22Mountings, 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 horizontal axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02Rotary receptacles, e.g. drums
    • D06F37/04Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26Casings; Tubs
    • D06F37/265Counterweights mounted to the tub; Mountings therefor
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26Casings; Tubs
    • D06F37/267Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12Casings; Tubs
    • D06F39/125Supporting arrangements for the casing, e.g. rollers or legs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/022Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

본 발명은 드럼세탁기에 관한 것으로, 더욱 상세하게는 회전조의 회전으로 발생되는 진동을 억제하는 진동 방지장치에 관한 것이다.The present invention relates to a drum washing machine, and more particularly to a vibration preventing device for suppressing the vibration generated by the rotation of the rotating tub.

본 발명에 따른 드럼세탁기의 진동 방지장치는 고정조의 상부에 고정되는 제 1균형추의 상부에 탄성력을 가진 연결부재를 통해 소정간격 이격되게 설치되는 제 2균형추가 마련되었다. 따라서, 고정조에 고정된 제 1균형추의 진동을 제 2균형추가 흡수하게 됨으로써, 고정조의 진동이 크게 감쇠되는 이점이 있다.Vibration preventing device of the drum washing machine according to the present invention was provided with a second balance is provided to be spaced apart a predetermined interval through the connecting member having an elastic force on the upper portion of the first balancing weight fixed to the upper portion of the fixing tank. Therefore, the second balance weight is absorbed by the vibration of the first balance weight fixed to the fixing tank, so that the vibration of the fixing tank is greatly attenuated.

Description

드럼세탁기의 진동 방지장치Vibration Prevention Device of Drum Washing Machine

본 발명은 드럼세탁기에 관한 것으로, 더욱 상세하게는 회전조의 회전으로 발생되는 진동을 억제하는 진동 방지장치에 관한 것이다.The present invention relates to a drum washing machine, and more particularly to a vibration preventing device for suppressing the vibration generated by the rotation of the rotating tub.

일반적으로 드럼세탁기는 드럼형상으로 마련된 회전조의 회전으로 생긴 낙차를 이용하여 세탁물을 세탁하는 장치로, 미리 입력된 프로그램에 따라 세탁과 헹굼, 탈수와 건조 행정을 자동적으로 수행한다. 특히, 드럼세탁기는 세탁물을 빨래방망이로 두드려주는 것과 같은 효과가 발생되어 세탁효과가 크고, 세탁물의 손상이 적은 세탁기이다.In general, a drum washing machine is a device for washing laundry using a drop generated by the rotation of a rotating tub provided in a drum shape, and automatically performs washing and rinsing, dehydration and drying strokes according to a pre-programmed program. In particular, the drum washing machine is a washing machine with the same effect as tapping the laundry with a laundry batter has a large washing effect and less damage to the laundry.

이러한 종래의 드럼세탁기는 도 1에 도시된 바와 같이, 본체(10)의 내부에 세탁수가 채워질 수 있도록 일측이 개구된 원통상의 고정조(11)가 구비되고, 고정조의 내측에는 원통상의 회전조(12)가 설치된다. 회전조(12)는 본체(10)의 저부에 설치된 구동모터(13)에 의해 구동되는데, 회전조(12)의 후방에는 회전조(12)를 회전시키기 위한 풀리(미도시)가 설치되고, 이 풀리는 구동모터(13)와 밸트(16)를 매개로 연결된다. 또한, 회전조(12)는 벽면에 다수의 탈수공이 형성되어 그 내측으로 세탁수의 유입과 유출이 자유롭게 되고, 탈수시에는 이 탈수공을 통해 세탁물에 함유된 수분이 빠져나가게 된다.As shown in FIG. 1, the conventional drum washing machine is provided with a cylindrical fixing tub 11 having one side opened so that washing water can be filled in the main body 10, and a cylindrical rotation is formed inside the fixing tub. The jaw 12 is installed. The rotating tub 12 is driven by the drive motor 13 installed at the bottom of the main body 10, the rear of the rotating tub 12 is provided with a pulley (not shown) for rotating the rotating tub 12, This pulley is connected to the drive motor 13 and the belt 16 via a medium. In addition, the rotating tub 12 has a plurality of dehydration holes are formed on the wall surface, the inflow and outflow of the washing water is free to the inside, and during the dehydration, the moisture contained in the laundry is discharged through the dehydration hole.

또한, 이러한 드럼세탁기는 회전조(12)의 내부에 세탁물이 채워진 상태에서 회전조(12)가 회전을 하게 되므로, 세탁물의 편심으로 인한 진동이 발생되는데, 이러한 진동을 방지하기 위해 진동 방지장치가 마련된다.In addition, since the drum washing machine rotates in the state where the laundry is filled in the inside of the rotating tub 12, the drum washing machine generates vibration due to the eccentricity of the laundry. Prepared.

진동 방지장치로는 고정조(11)를 탄력 지지하는 복수의 현가스프링(14)과, 고정조(11)의 하부에 설치되어 고정조(11)를 완충 지지해주는 완충기(15)가 구비된다. 또한, 고정조(11)의 전면과 상면 외측에는 금속재로 마련된 무거운 균형추 (17,18)가 부착되어 고정조(11)의 진동을 감소시키게 된다.The anti-vibration device includes a plurality of suspension gas springs 14 that elastically support the fixing tank 11, and a shock absorber 15 that is installed at the lower portion of the fixing tank 11 to buffer and support the fixing tank 11. In addition, heavy balance weights (17, 18) made of a metal material is attached to the front and the outer surface of the fixing tank 11 to reduce the vibration of the fixing tank (11).

그러나, 이러한 종래의 진동 방지장치는 고정조(11)에 부착된 균형추(17,18)와 완충기(15) 등에 의해 상당부분 진동이 감쇠되기는 하지만, 균형추(17,18)의 무게와 크기를 크게하여 진동을 감소시키는 것은 한계가 있기 때문에, 세탁기의 용량에 비례하여 균형추(17,18)의 크기를 한정시킬 수밖에 없다. 따라서, 고정조(11)의 진동이 발생되면, 고정조(11)의 외면에 고정된 균형추(17,18)는 고정조(11)와 함께 흔들리게 되기 때문에 균형추(17,18)와 완충기(15)만을 이용하여 진동을 감쇠시키는 데는 한계가 있었다.However, in the conventional vibration preventing device, although the vibration is attenuated in large part by the counterweights 17 and 18 and the shock absorber 15 attached to the fixing tank 11, the weight and size of the counterweights 17 and 18 are greatly increased. There is a limit to reduce the vibration, so the size of the balancing weight (17, 18) is inevitably limited in proportion to the capacity of the washing machine. Therefore, when the vibration of the fixing tank 11 is generated, since the balancing weights 17 and 18 fixed to the outer surface of the fixing tank 11 are shaken together with the fixing tank 11, the balancing weights 17 and 18 and the shock absorber ( There was a limit to damping vibration using only 15).

본 발명은 이와 같은 문제점을 감안하여 안출된 것으로, 본 발명의 목적은 고정조의 외면에 부착되는 균형추에 제 2균형추를 설치함으로써 진동 감쇠효과를 높여주는 드럼세탁기의 진동 방지장치를 제공하는 것이다.The present invention has been made in view of the above problems, and an object of the present invention is to provide a vibration washer preventing device of the drum washing machine to increase the vibration damping effect by installing a second counterweight on the balance weight attached to the outer surface of the fixing tank.

도 1은 종래 드럼세탁기의 내부구성을 보인 사시도이다.1 is a perspective view showing the internal structure of a conventional drum washing machine.

도 2는 본 발명에 따른 드럼세탁기의 내부구성을 보인 사시도이다.2 is a perspective view showing the internal configuration of the drum washing machine according to the present invention.

도 3은 본 발명에 따른 진동 방지장치의 설치구조를 보인 도면이다.3 is a view showing the installation structure of the vibration preventing device according to the present invention.

도 4는 본 발명에 따른 진동 방지장치의 구조를 보인 분해 사시도이다.Figure 4 is an exploded perspective view showing the structure of the vibration preventing device according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

20: 본체, 21: 고정조,20: main body, 21: fixing tank,

22: 회전조, 23: 구동모터,22: rotary tub, 23: drive motor,

24: 현가스프링, 25: 완충기,24: suspension gas spring, 25: shock absorber,

27: 급수밸브, 28: 급수관,27: water supply valve, 28: water supply pipe,

29: 세제용해장치, 30: 배수관,29: detergent dissolving device, 30: drain pipe,

31: 배수펌프, 40,50: 균형추,31: drain pump, 40, 50: counterweight,

51: 제 1균형추, 52: 제 2균형추,51: first balance weight, 52: second balance weight,

53: 연결부재.53: connecting member.

상기의 목적을 달성하기 위한 본 발명은, 본체의 내부에 설치되며 세탁수가 담수되는 고정조와, 상기 고정조의 내부에 회전 가능하게 설치되며 벽면에 다수의 탈수공이 형성된 회전조와, 상기 회전조의 회전시에 발생되는 진동을 감쇠시키도록 상기 고정조의 외면에 고정이 되는 균형추를 구비하는 드럼세탁기에 있어서,The present invention for achieving the above object, the fixing tank is installed in the main body and wash water is installed, the rotating tank rotatably installed in the interior of the fixing tank and a plurality of dewatering holes are formed on the wall, and at the time of rotation of the rotating tank In the drum washing machine having a balance weight that is fixed to the outer surface of the fixing tank to attenuate the generated vibration,

상기 균형추는 상기 고정조의 외면에 고정이 되는 제 1균형추와, 상기 제 1균형추와 소정간격 이격되게 설치되는 제 2균형추와, 상기 제 1균형추와 상기 제 2균형추가 상호 연결되도록 일단부가 상기 제 1균형추에 고정되고 타단부가 상기 제 2균형추에 고정이 되는 연결부재를 포함하는 것을 특징으로 하는 구성이다.The balance weight is a first balance weight which is fixed to the outer surface of the fixing tank, a second balance weight installed to be spaced apart from the first balance weight, the first balance weight and the first balance weight and one end portion so that the first balance weight is connected to each other It is a configuration characterized in that it comprises a connecting member fixed to the balance weight and the other end is fixed to the second balance weight.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다. 도 2는 본 발명에 따른 드럼세탁기의 내부구성을 보인 사시도이고, 도 3은 본 발명에 따른 진동 방지장치의 설치구조를 보인 도면이며, 도 4는 본 발명에 따른 진동 방지장치의 구조를 보인 분해 사시도이다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 2 is a perspective view showing the internal configuration of the drum washing machine according to the invention, Figure 3 is a view showing the installation structure of the vibration preventing device according to the present invention, Figure 4 is an exploded view showing the structure of the vibration preventing device according to the present invention. Perspective view.

본 발명에 따른 드럼세탁기는 이에 도시된 바와 같이, 본체(20)의 내부에 세탁수가 채워지며, 세탁물의 인출이 가능하도록 일측이 개구된 원통상의 고정조(21)가 구비되고, 고정조(21)의 내측에는 원통상으로 마련되며 벽면에 다수의 탈수공이 형성된 회전조(22)가 설치된다. 회전조(22)는 본체(20)의 저부에 설치된 구동모터 (23)에 의해 구동되는데, 회전조(22)의 후방에는 회전조(22)를 회전시키기 위한 풀리(미도시)가 설치되고, 이 풀리는 구동모터(23)와 밸트(26)를 매개로 연결된다.Drum washing machine according to the present invention, as shown in this, the washing water is filled in the inside of the main body 20, the cylindrical fixing tank 21 is provided with one side opened to enable the withdrawal of the laundry, the fixing tank ( The inside of the 21) is provided in a cylindrical shape and the rotating tank 22 is formed with a plurality of dehydration holes on the wall surface. The rotating tub 22 is driven by the drive motor 23 installed at the bottom of the main body 20, the rear of the rotating tub 22 is provided with a pulley (not shown) for rotating the rotating tub 22, This pulley is connected to the drive motor 23 and the belt 26 via a medium.

고정조(21)의 상측에는 고정조(21)가 본체(21)의 내측에 탄력 지지되도록 복수의 현가스프링(24)이 설치되며, 고정조(21)의 하부에는 세탁시의 진동을 흡수하도록 고정조(21)를 완충 지지해 주는 완충기(25)가 설치된다.On the upper side of the fixing tank 21, a plurality of suspension gas springs 24 are installed so that the fixing tank 21 is elastically supported inside the main body 21, and the lower portion of the fixing tank 21 to absorb vibrations during washing. The shock absorber 25 which buffers the fixing tank 21 is provided.

또한, 고정조(21)의 상측에는 고정조(21)의 내부로 세탁수를 공급할 수 있도록 급수밸브(27)와 복수의 급수관(28)으로 구성된 급수장치가 마련되며, 이 급수장치에는 고정조(21)의 내부로 세탁수가 공급될 때 세제를 용해시켜 공급할 수 있도록 세제용해장치(29)가 설치된다.In addition, a water supply device composed of a water supply valve 27 and a plurality of water supply pipes 28 is provided at an upper side of the fixing tank 21 so as to supply washing water to the inside of the fixing tank 21. Detergent dissolving apparatus 29 is installed to dissolve and supply detergent when washing water is supplied into 21.

고정조(21)의 하측에는 행굼과정이나 탈수과정에서 세탁수의 배수가 가능하도록 배수관(30)이 설치되고, 배수관(30)의 단부에는 세탁수를 강제배수 시키는 배수펌프(31)가 설치된다. 여기에서 배수펌프(31)의 토출구와 연결된 배수관(30)은 본체(20)의 내측 상부를 통해 외부로 연장되게 된다.The drainage pipe 30 is installed at the lower side of the fixing tank 21 so as to enable the drainage of the wash water in the rinsing process or the dehydration process, and a drain pump 31 for forcibly draining the wash water is installed at the end of the drain pipe 30. . Here, the drain pipe 30 connected to the discharge port of the drain pump 31 is extended to the outside through the inner upper portion of the main body 20.

또한, 드럼세탁기는 상기 회전조(22)가 회전될 때, 발생되는 고정조(21)의 진동을 감쇠시킬 수 있도록, 고정조(21)의 외면에 무거운 금속재로 마련된 균형추 (40,50)가 설치된다. 이 균형추(40,50)는 고정조의 전면부와 상단부 외측에 볼트 등을 이용해서 고정 설치되며, 고정조(21)의 진동 발생시 진동을 억제하는 효과를 주게 된다.In addition, the drum washing machine has a counterweight (40, 50) provided with a heavy metal material on the outer surface of the fixing tank 21 to attenuate the vibration of the fixing tank 21 generated when the rotating tub 22 is rotated Is installed. The counterweights 40 and 50 are fixed to the front and upper ends of the fixing tank by using bolts and the like, and have an effect of suppressing the vibration when the fixing tank 21 is generated.

한편, 본 발명에 따른 드럼세탁기는 진동 감쇠효과를 더욱 높여 줄 수 있도록, 상단부에 설치된 균형추(50)가 고정조(21)의 외면에 고정이 되는 제 1균형추 (51)와, 제 1균형추(51)에 고정이 되며 제 1균형추(51)로부터 소정거리 이격되게 설치되는 제 2균형추(52)가 마련된다.On the other hand, the drum washing machine according to the present invention, in order to further increase the vibration damping effect, the first balancing weight 51 and the first balancing weight (50) is fixed to the outer surface of the fixing tank 21 is installed on the upper end portion ( The second balance weight 52 is fixed to the 51 and installed to be spaced apart from the first balance weight 51 by a predetermined distance.

도 3과 도 4를 참조하여 설명하면, 제 2균형추(52)는 제 1균형추(51)보다 작은 크기와 질량을 가지도록 마련되며, 제 2균형추(52)가 제 1균형추(51)와 소정거리 이격된 상태로 고정이 될 수 있도록 이들을 연결해 주는 연결부재(53)가 마련된다.Referring to FIG. 3 and FIG. 4, the second balance weight 52 is provided to have a smaller size and mass than the first balance weight 51, and the second balance weight 52 is predetermined with the first balance weight 51. Connection members 53 are provided to connect them so that they can be fixed at a distance.

연결부재(53)는 소정의 길이를 가진 연결부(53a)와, 연결부(53a)의 양단부에 각각 형성되어 제 1균형추(51)의 상면과 제 2균형추(52)의 하면에 고정이 되는 고정판(53b,53c)으로 구성된다. 그리고, 고정판(53b,53c)에는 체결용볼트(55)를 통해 연결부재(53)를 각 균형추(51,52)와 고정시킬 수 있도록 복수의 결합공(54)이 형성되고, 제 1균형추(51)와 제 2균형추(52)에는 연결부재(53)의 고정판에 형성된 결합공(54)과 대응이 되도록 복수의 나사공(56)이 형성된다.The connecting member 53 is formed on each of the connecting portion 53a having a predetermined length and both ends of the connecting portion 53a and is fixed to the upper surface of the first balancing weight 51 and the lower surface of the second balancing weight 52 ( 53b, 53c). In addition, a plurality of coupling holes 54 are formed in the fixing plates 53b and 53c to fix the connecting member 53 with the counterweights 51 and 52 through the fastening bolt 55, and the first balance weight ( 51 and the second balance weight 52 are formed with a plurality of screw holes 56 to correspond to the coupling hole 54 formed in the fixed plate of the connecting member 53.

여기에서, 상기 연결부재의 연결부(53a)는 제 2균형추(52)가 제 1균형추(51)의 운동방향과는 별도로 자유롭게 움직여 사방으로 휘어질 수 있도록 고무처럼 탄성력을 가진 탄성부재로 마련되는 것이 바람직하다. 그리고, 고정판(53b,53c)은 연결부(53a)와 각 균형추(51,52)가 견고한 결합을 이룰 수 있도록 경질의 판재나, 철판 등으로 구성되는 것이 바람직하다.Here, the connecting portion 53a of the connecting member is provided with an elastic member having elasticity such as rubber so that the second balance weight 52 can be bent in all directions freely moving independently of the movement direction of the first balance weight 51. desirable. In addition, the fixing plates 53b and 53c are preferably made of a hard plate, an iron plate, or the like so that the connecting portion 53a and the counterweights 51 and 52 can form a firm coupling.

이러한 구성으로 이루어진 균형추(50)는, 진동을 감쇠시키는 장치로 강제 진동을 받는 주진동체에 보조진동체인 다이내믹 댐퍼(dynamic damper)를 부착시킴으로써, 보조진동체가 강제 진동을 흡수하여 진동을 하게 되고, 주진동체는 진동하지 않는 동흡진기(dynamic vibration reducer)의 원리가 적용된 것이다.The balance weight 50 having such a structure is a device for damping vibration, and by attaching a dynamic damper, which is an auxiliary vibration body, to the main vibration body subjected to forced vibration, the auxiliary vibration body vibrates by absorbing the forced vibration, and the main vibration The fuselage is based on the principle of a dynamic vibration reducer that does not vibrate.

즉, 여기에서는 제 1균형추(51)가 주진동체가 되고, 제 2균형추(52) 및 연결부재(53)가 보조진동체가 되어 진동을 흡수함으로써, 제 1균형추(51)의 진동이 크게 감쇠되어 고정조(21)의 진동이 방지되게 된다.That is, in this case, the first balance weight 51 becomes the main vibrating body, and the second balance weight 52 and the connecting member 53 become the auxiliary vibrating body to absorb vibrations, so that the vibration of the first balance weight 51 is greatly attenuated and fixed. Vibration of the bath 21 is prevented.

다음은 이와 같이 구성된 본 발명에 따른 드럼세탁기의 작동을 설명한다.The following describes the operation of the drum washing machine according to the present invention configured as described above.

본체(20)의 하부에 마련된 구동모터(23)가 정방향과 역방향으로 번갈아 회전되면, 이 회전력은 밸트(26)를 통해 회전조(22)로 전달되어 회전조의 회전이 이루어지게 된다. 이때, 회전조(22)의 내부에 있는 세탁물은 뒹굴거나 낙하가 되면서 세탁이 수행되게 된다.When the drive motor 23 provided in the lower portion of the main body 20 is rotated alternately in the forward and reverse directions, the rotational force is transmitted to the rotating tank 22 through the belt 26 to rotate the rotating tank. At this time, the laundry in the interior of the rotating tub 22 is rolled or dropped while washing is performed.

그리고, 탈수행정 중에는 회전조(22)의 고속회전에 의해 발생되는 원심력에의해 세탁물에 함유된 물기의 탈수가 된다. 탈수된 물은 회전조(22)의 탈수공을 통해 고정조(21)쪽으로 빠져나가 고정조(21)의 하부에 연결된 배수관(30)을 통해 본체(20)의 외부로 배출되게 된다.Then, during the dehydration stroke, the water contained in the laundry is dehydrated by the centrifugal force generated by the high speed rotation of the rotating tank 22. The dewatered water is discharged toward the fixing tank 21 through the dehydration hole of the rotating tank 22 and is discharged to the outside of the main body 20 through the drain pipe 30 connected to the lower portion of the fixing tank 21.

이처럼 세탁행정과 탈수행정이 이루어지는 동안, 고정조(21)는 회전조(22)의 회전과 세탁물의 유동 및 편심에 의해 진동이 발생되고, 이 진동은 고정조(21)의 상부에 설치된 현가스프링(24)과 고정조(21)의 하부를 지지하는 완충기(25)를 통해 감쇠되며, 또한 고정조(21)의 전면부 및 상단부에 설치된 균형추(40,50)에 의해 감쇠되게 된다.As such, while the washing stroke and the dehydration stroke are performed, the fixed tub 21 is vibrated by the rotation of the rotary tub 22 and the flow and eccentricity of the laundry, and the vibration is a current gas spring installed on the top of the fixed tub 21 ( 24 and attenuated through the shock absorber 25 supporting the lower part of the fixing tank 21, and is also attenuated by the balance weights (40, 50) provided in the front and the upper end of the fixing tank (21).

특히, 고정조(21)의 상단부에 마련되는 균형추(50)는 제 1균형추(51)의 상부에 연결부재(53)를 통해 연결된 제 2균형추(52)가 마련됨으로 해서 진동감쇠 효과를 더욱 높여주게 된다. 이를 상세히 설명하면, 고정조(21)에 발생되는 진동은 고정조(21)의 상부에 고정이 된 제 1균형추(51)에 의해 상당부분 감쇠되지만, 고정조 (21)와 함께 제 1균형추(51)가 흔들리기 때문에 진동은 여전히 존재하게 된다. 이때 제 1균형추(51)의 상부에 설치되는 제 2균형추(52)는 탄성력을 가진 연결부재 (53)에 의해 고정되기 때문에, 제 1균형추(51)의 진동방향과 상반되는 방향으로 진동을 하게 됨으로써 제 1균형추(51)의 진동을 흡수하게 된다.In particular, the balance weight 50 provided at the upper end of the fixing tank 21 is provided with a second balance weight 52 connected to the upper portion of the first balance weight 51 through the connecting member 53 to further increase the vibration damping effect. Given. In detail, the vibration generated in the fixing tub 21 is attenuated by the first balancing weight 51 fixed to the upper portion of the fixing tub 21, but the first balancing weight (with the fixing tank 21) 51) the vibration still exists because it is shaken. In this case, since the second balance weight 52 installed on the upper portion of the first balance weight 51 is fixed by the connecting member 53 having elastic force, the second balance weight 52 vibrates in a direction opposite to the vibration direction of the first balance weight 51. As a result, the vibration of the first balance weight 51 is absorbed.

즉, 제 1균형추(51)의 진동을 제 2균형추(52)가 흡수하게 됨으로써, 제 2균형추(52)만 흔들리게 되고, 제 1균형추(51)는 흔들리지 않으려는 성질이 커지게 되어 고정조(21)의 진동이 크게 감쇠되게 되는 것이다.That is, since the second balance weight 52 absorbs the vibration of the first balance weight 51, only the second balance weight 52 is shaken, and the first balance weight 51 is not shaken. The vibration of 21 is to be greatly attenuated.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 드럼세탁기의 진동 방 지장치는 고정조의 상부에 고정되는 제 1균형추의 상부에 탄성력을 가진 연결부재를 통해 소정간격 이격되게 설치되는 제 2균형추가 마련되었다. 따라서, 고정조에 고정된 제 1균형추의 진동을 제 2균형추가 흡수하게 됨으로써, 고정조의 진동이 크게 감쇠되는 이점이 있다.As described above in detail, the vibration preventing device of the drum washing machine according to the present invention was provided with a second balance is installed at a predetermined interval spaced through the connecting member having an elastic force on the upper portion of the first balancing weight fixed to the upper portion of the fixing tank. Therefore, the second balance weight is absorbed by the vibration of the first balance weight fixed to the fixing tank, so that the vibration of the fixing tank is greatly attenuated.

Claims (2)

본체(20)의 내부에 설치되며 세탁수가 담수되는 고정조(21)와, 상기 고정조의 내부에 회전 가능하게 설치되며 벽면에 다수의 탈수공이 형성된 회전조(22)와, 상기 회전조의 회전시에 발생되는 진동을 감쇠시키도록 상기 고정조(21)의 외면에 고정이 되는 균형추(50)를 구비하는 드럼세탁기에 있어서,A fixing tank 21 installed inside the main body 20 to wash the fresh water, and a rotating tank 22 rotatably installed inside the fixing tank and having a plurality of dehydration holes formed on a wall thereof. In the drum washing machine having a counterweight (50) which is fixed to the outer surface of the fixing tank 21 to damp the generated vibrations, 상기 균형추(50)는 상기 고정조(21)의 외면에 고정이 되는 제 1균형추(51)와, 상기 제 1균형추와 소정간격 이격되게 설치되는 제 2균형추(52)와, 상기 제 1균형추와 상기 제 2균형추가 상호 연결되도록 일단부가 상기 제 1균형추에 고정되고 타단부가 상기 제 2균형추에 고정이 되는 연결부재(53)를 포함하는 것을 특징으로 하는 드럼세탁기의 진동 방지장치.The balance weight 50 includes a first balance weight 51 fixed to an outer surface of the fixing tank 21, a second balance weight 52 installed to be spaced apart from the first balance weight by a predetermined interval, and the first balance weight And a connecting member (53) having one end fixed to the first balance weight and the other end fixed to the second balance weight such that the second balance weight is interconnected. 제 1항에 있어서,The method of claim 1, 상기 연결부재(53)는 상기 제 2균형추(52)가 상기 제 1균형추(51)의 진동 방향과 상반되게 진동되어 상기 제 1균형추(51)의 진동을 흡수할 수 있도록 탄성력을 가진 탄성부재로 마련된 것을 특징으로 하는 드럼세탁기의 진동 방지장치.The connecting member 53 is an elastic member having an elastic force such that the second balance weight 52 is vibrated opposite to the vibration direction of the first balance weight 51 to absorb the vibration of the first balance weight 51. Vibration preventing device of a drum washing machine characterized in that provided.
KR10-1998-0022794A 1998-06-17 1998-06-17 Vibration Prevention Device of Drum Washing Machine KR100366691B1 (en)

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KR20080042604A (en) * 2006-11-10 2008-05-15 엘지전자 주식회사 Washing machine
KR100798780B1 (en) * 2006-11-23 2008-01-29 삼성전자주식회사 Vibration absorber and washing machine having the same
KR101443627B1 (en) * 2008-01-24 2014-09-23 엘지전자 주식회사 Drum type washing machine and control method thereof
JP5269871B2 (en) * 2010-12-24 2013-08-21 ヤマウチ株式会社 Vibration absorber for washing machine
TR201706613A3 (en) * 2017-05-05 2018-12-21 Arcelik As A DYNAMIC VIBRATION ABSORBER AND WASHING MACHINE
TR201706654A2 (en) * 2017-05-05 2018-11-21 Arcelik As A DYNAMIC VIBRATION ABSORBER AND WASHING MACHINE

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