KR20000020454A - Device for reducing vibration of drum washing machine - Google Patents

Device for reducing vibration of drum washing machine Download PDF

Info

Publication number
KR20000020454A
KR20000020454A KR1019980039065A KR19980039065A KR20000020454A KR 20000020454 A KR20000020454 A KR 20000020454A KR 1019980039065 A KR1019980039065 A KR 1019980039065A KR 19980039065 A KR19980039065 A KR 19980039065A KR 20000020454 A KR20000020454 A KR 20000020454A
Authority
KR
South Korea
Prior art keywords
vibration
cylinder
tub
friction ring
washing machine
Prior art date
Application number
KR1019980039065A
Other languages
Korean (ko)
Inventor
하종훈
강경석
Original Assignee
구자홍
엘지전자 주식회사
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 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019980039065A priority Critical patent/KR20000020454A/en
Publication of KR20000020454A publication Critical patent/KR20000020454A/en

Links

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
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
    • 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
    • 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
    • D06F37/22—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 horizontal 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
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • 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
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

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

Abstract

PURPOSE: A device for reducing the vibration of a drum washing machine is provided to increase the reducing efficiency of whole vibration by increasing the reducing efficiency of vertical vibration using a pair of cushion members to reduce the vertical vibration. CONSTITUTION: A vertical vibration among vibrations generated according to the rotation of a washing tub(2) is reduced with each supporting spring(4) by connecting the upside of the outer circumference of a tub(3) and the upper face of a main body(1) with plural supporting springs(4), and reduced with each cushion member(5) by connecting the lower face of the outer circumference of the tub(3) and the lower face of the main body(1) with a pair of cushion members(5). The cushion members(5) comprise of a cylinder(50), a hollowed hole(52), a piston(53) and a rubbing ring(55).

Description

드럼 세탁기의 진동 감쇠장치Vibration Damping Device of Drum Washing Machine

본 발명은 드럼 세탁기 분야에 관련된 것으로써, 더욱 상세하게는 터브 내에 설치된 드럼이 회전하면서 세탁물을 세탁하거나 탈수할 때 상기 드럼의 회전에 의한 진동력을 감쇠하여 주도록 한 드럼 세탁기의 진동 감쇠장치에 관한 것이다.The present invention relates to the field of drum washing machines, and more particularly, to a vibration damping device of a drum washing machine for damping the vibration force caused by the rotation of the drum when the drum installed in the tub to wash or dehydrate the laundry while rotating. will be.

일반적으로 드럼 세탁기는 본체(1) 내에 설치된 원통형상의 세탁조(2)가 눕혀진 상태로 회전하면서 세탁 및 탈수를 수행하도록 한 세탁기로써, 세탁조가 세워진 상태로 회전하는 펄세이터 세탁기에 비해 전체 높이를 줄일 수 있으면서도 오히려 세탁용량은 더 늘릴 수 있고, 포꼬임 등의 문제가 거의 발생되지 않으므로 인해 그 수요가 점점 더 늘어나고 있는 추세에 있다.In general, a drum washing machine is a washing machine that performs washing and dehydration while rotating in a state in which a cylindrical washing tank 2 installed in the main body 1 is laid down, and reduces the overall height compared to a pulsator washing machine that rotates in a standing state. In addition, the washing capacity can be increased, and the demand is increasing due to little problems such as poking.

상기한 드럼 세탁기의 세탁조(2)는 역시 원통형상으로된 터브(3) 내에 설치되어 있고, 상기 터브는 진동 감쇠장치에 의해 진동력 감쇠가 가능한 상태로 본체(1)에 설치되어 있다.The washing tub 2 of the drum washing machine is provided in the tub 3 which is also cylindrical in shape, and the tub is installed in the main body 1 in a state capable of damping vibration force by the vibration damping device.

따라서 세탁조(2) 내로 세탁하고자 하는 세탁물과 세제를 넣은 상태에서 콘트롤부에 구비된 세탁버튼을 선택하면 세탁행정→ 헹굼행정→ 탈수행정이 연속적으로 이루어지면서 세탁이 완료된다.Therefore, if you select the washing button provided in the control unit in the state to put the laundry and detergent to be washed into the washing tank (2), the washing stroke → rinsing stroke → dehydration stroke is made continuously and the washing is completed.

즉 세탁버튼이 선택되면, 급수수단이 작동하여 터브(3) 내에 회전가능하게 설치되어 있는 세탁조(2) 내로 세탁에 사용될 물을 급수하고, 상기 급수된 물이 적정수위 만큼 채워지고 나면 급수는 중단됨과 동시에 모터(도시는 생략함)가 정,역구동을 반복적으로 행한다.That is, when the washing button is selected, the water supply means operates to supply water to be washed into the washing tank 2 which is rotatably installed in the tub 3, and the water supply is stopped after the supplied water is filled to an appropriate level. At the same time, the motor (not shown) repeatedly performs forward and reverse driving.

이와같이 모터가 정,역구동을 행하면, 이 모터의 구동력은 감속수단을 통해 감속된 상태로 하여 세탁조(2)로 전달되므로 상기 세탁조가 정,역회전함에 따라 수류의 발생으로 인해 세탁물이 세탁조(2)와의 마찰력 및 세제의 분해력 등에 의해 세탁이 된다.When the motor performs forward and reverse driving as described above, the driving force of the motor is transmitted to the washing tank 2 in a state in which it is decelerated through the deceleration means. Washing due to frictional force with) and the decomposition force of detergent.

상기 세탁행정이 완료되고 나면, 세탁행정시와 동일한 과정을 거치면서 헹굼을 수행하고, 헹굼행정이 완료되고 나면 곧바로 탈수행정이 수행되는데, 상기 탈수행정시에는 배수수단이 작동하여 세탁조(2) 내에 채워져 있는 물을 완전히 배수한 다음 모터가 구동하고, 이 모터의 구동력은 감속되지 않은 상태 그대로 상기 세탁조(2)로 전달되므로 세탁조가 고속으로 회전함에 따라 원심력에 의해 세탁물에 함유된 수분이 빠져나오면서 탈수가 수행된다.After the washing stroke is completed, the rinsing is performed while going through the same process as the washing stroke, and after the rinsing stroke is completed, a dehydration stroke is performed immediately. In the dehydrating stroke, the drainage means operates in the washing tank 2. After the filled water is completely drained, the motor is driven, and the driving force of the motor is transmitted to the washing tank 2 as it is not decelerated, so as the washing tank rotates at high speed, the moisture contained in the laundry is drained by centrifugal force. Is performed.

한편 상기한 과정에 의해 세탁조(2)가 회전하면서 세탁 및 탈수를 수행할 때는 진동력이 발생되고, 이 진동력은 그대로 터브(3)로 전달되므로 상기 터브가 진동될려고 하는데, 상기 터브는 진동 감쇠장치에 의해 진동력 감쇠가 가능한 상태로 본체(1) 내에 설치되어 있으므로 터브(3)까지 전달된 진동력은 상기 진동 감쇠장치에 의해 대부분 흡수되면서 감쇠됨에 따라 결국 본체(1) 까지 전달되는 진동력은 극히 일부에 지나지 않게되어 상기 본체가 흔들리거나 하면서 발생되는 소음이 대폭적으로 줄어들게 됨은 이해 가능하다.On the other hand, when the washing tank 2 is rotated by the above process while washing and dehydration is performed, a vibration force is generated, and the vibration force is transmitted to the tub 3 as it is, so that the tub is about to be vibrated. Since the vibration force attenuated by the device is installed in the main body 1, the vibration force transmitted up to the tub 3 is absorbed and absorbed by the vibration damping device, and thus the vibration force transmitted to the main body 1 eventually. It is understood that the noise generated while shaking the main body is only a small portion, and the noise is greatly reduced.

상기한 바와같은 드럼 세탁기에서 세탁 및 탈수시 세탁조(2)의 회전에 따른 진동력을 감쇠시켜 주는 역할을 하는 진동 감쇠장치의 종래 구조는 첨부된 도 1 내지 도2와 같이 터브(3)의 외측둘레면 상부와 본체(1)의 상부면이 복수개의 지지스프링(4)으로 연결되어 세탁조(2)의 회전에 따라 발생되는 진동력중 수평진동력이 상기 각 지지스프링(4)에 의해 감쇠되도록 하고, 상기 터브(3)의 외측둘레면 하부와 본체(1)의 하부면이 좌우로 각각 하나씩 한쌍의 쿠션부재(5)로써 연결되어 세탁조(2)의 회전에 따라 발생되는 진동력중 수직진동력이 상기 각 쿠션부재(5)에 의해 감쇠되도록 한다.Conventional structure of the vibration damping device that serves to dampen the vibration force due to the rotation of the washing tank 2 during washing and dehydration in the drum washing machine as described above is the outer side of the tub 3 as shown in Figs. The upper periphery of the circumferential surface and the upper surface of the main body 1 are connected to the plurality of support springs 4 so that the horizontal vibration force generated from the rotation of the washing tub 2 is attenuated by the respective support springs 4. The lower surface of the outer periphery of the tub 3 and the lower surface of the main body 1 are connected to each other by a pair of cushion members 5 one by one to the left and right, and the vertical vibration of the vibration force generated by the rotation of the washing tub 2 is applied. Power is attenuated by each of the cushion members 5.

상기 쿠션부재(5)는 하부가 개방된 상태로 중공부(51)를 가지며 상단이 터브(3)에 형성되어 있는 터브 연결편(3a)에 회동가능하게 힌지결합된 실린더(50)와, 상기 실린더의 상단에 형성되어 공기의 이동 통로 역할을 하는 통공(52)과, 개방부를 통해 상기 실린더(50)의 중공부(51)로 삽입되고 하단이 본체(1)에 형성되어 있는 본체 연결편(1a)에 회동가능하게 힌지결합된 피스톤(53)과, 상기 피스톤의 외측둘레면중 실린더(50)의 중공부(51) 삽입부분 외측둘레에 원주방향으로 형성된 복수개의 요입홈(54)과, 상기 각 요입홈에 끼워져 외측둘레면이 실린더(50)의 중공부(51) 둘레에 접촉된 마찰링(55)으로 구성되어 있다.The cushion member 5 includes a cylinder 50 having a hollow portion 51 having a lower portion thereof open and hinged rotatably to a tub connecting piece 3a having an upper end formed on the tub 3, and the cylinder. A through hole 52 formed at an upper end of the cylinder 50 to serve as a moving passage of air, and inserted into the hollow part 51 of the cylinder 50 through an opening part, and a lower end of the main body connecting piece 1a formed at the main body 1; And a plurality of concave inlet grooves 54 formed in a circumferential direction on an outer circumference of the piston 53 rotatably hinged to the outer circumferential surface of the piston, and an insertion portion of the hollow portion 51 of the cylinder 50, It consists of a friction ring 55 which is fitted in the recessed groove and whose outer peripheral surface is in contact with the circumference of the hollow part 51 of the cylinder 50.

이와같이 구성된 종래 진동 감쇠장치에 의해 진동력을 감쇠시키는 일련의 과정을 설명하면 다음과 같다.Referring to a series of processes for damping the vibration force by the conventional vibration damping device configured as described above are as follows.

세탁 및 탈수시 세탁조(2)가 회전하면, 이 회전력에 의해 진동력이 발생되므로 터브(3)가 상기 발생된 진동력 만큼 수평 및 수직방향으로 진동을 하는데, 이때 상기 터브(3)의 수평진동은 터브의 외측둘레면 상부와 본체(1)의 상부면을 연결하고 있는 복수개의 지지스프링(4)의 탄성력에 의해 대부분 흡수되어 감쇠되고, 상기 터브(3)의 수직진동은 터브의 외측둘레면 하부와 본체(1)의 하부면을 연결하고 있는 한쌍의 쿠션부재(5)의 쿠션력에 의해 대부분 흡수되어 감쇠되므로 결국 터브(3)의 전체 진동이 감쇠된다.When the washing tank 2 rotates during washing and dehydration, the vibration force is generated by the rotational force, so the tub 3 vibrates in the horizontal and vertical directions by the generated vibration force, in which the horizontal vibration of the tub 3 occurs. Is mostly absorbed and attenuated by the elastic force of the plurality of support springs 4 connecting the upper outer peripheral surface of the tub and the upper surface of the main body 1, and the vertical vibration of the tub 3 is the outer peripheral surface of the tub. Most of the damping is absorbed and attenuated by the cushioning force of the pair of cushioning members 5 connecting the lower surface and the lower surface of the main body 1, so that the entire vibration of the tub 3 is attenuated.

이하 상기 진동 감쇠 과정중 쿠션부재(5)의 쿠션력에 의해 수직진동이 감쇠되는 과정을 좀더 구체적으로 설명하면 다음과 같다.Hereinafter, a process in which vertical vibration is attenuated by the cushion force of the cushion member 5 during the vibration damping process will be described in more detail.

터브(3)에 수직진동이 작용하면, 상단이 터브에 형성된 터브 연결편(3a)에 힌지결합되어 있는 실린더(50)가 수직방향으로 이동력을 가지므로 본체(1)에 형성된 본체 연결편(1a)에 하단이 회동가능하게 힌지결합되어 있는 피스톤(53)이 상기 실린더(50)의 중공부(51) 내로 삽입되어 있고, 상기 피스톤(53)의 외측둘레면중 실린더(50)의 중공부(51) 삽입부분 외측둘레에는 원주방향으로 복수개의 요입홈(54)이 형성되어 있으며, 상기 각 요입홈에는 실린더(50)의 중공부(51) 둘레에 접촉된 상태로 마찰링(55)이 끼워져 있음을 감안할 때 피스톤(53)이 실린더(50)의 중공부(51) 내에서 축방향으로 상,하이동하는 상태가 되므로 상기 각 마찰링(55)이 실린더(50)의 중공부(51) 둘레면과 접촉된 상태로 슬립이 일어나면서 마찰저항이 생기게 됨에 따라 이 마찰저항으로 인해 쿠션력이 생기게 되어 터브(3)의 수직진동이 감쇠되는 것이다.When the vertical vibration is applied to the tub (3), the main body connecting piece (1a) formed in the main body (1) because the cylinder 50, which is hinged to the tub connecting piece (3a) formed on the tub has a moving force in the vertical direction The piston 53, the lower end of which is hinged rotatably, is inserted into the hollow part 51 of the cylinder 50, and the hollow part 51 of the cylinder 50 of the outer circumferential surface of the piston 53. The outer periphery of the insertion portion is formed with a plurality of concave grooves 54 in the circumferential direction, each of the concave grooves is fitted with a friction ring 55 in contact with the circumference of the hollow 51 of the cylinder 50 In view of this, since the piston 53 is moved up and down in the axial direction in the hollow part 51 of the cylinder 50, the friction rings 55 are surrounded by the hollow part 51 of the cylinder 50. As the friction occurs as the slip occurs in contact with the surface, the frictional force Causing is to be a vertical vibration of the tub (3) attenuation.

한편 터브(3)에 수직진동이 작용함에 따라 실린더(50)가 수직방향으로 이동력을 가지는 것은, 상기 실린더(50)의 상단에 형성된 통공(52)을 통해 외부 공기가 실린더(50)의 중공부(51)로 들어가거나 중공부로 들어간 공기가 상기 통공(52)을 통해 다시 외부로 빠져나오므로 가능한데, 만약 실린더(50)의 중공부(51)로 공기가 들어가지 않거나 빠져나오지 않게된다면 상기 중공부(51)의 상부분이 항상 진동상태가 유지되므로 실린더(50)가 터브(3)의 수직진동력 만큼 수직방향으로 이동력을 가지지 못하게 되고, 이에따라 피스톤(53)의 각 요입홈(54)에 끼워져 있는 마찰링(55)이 상기 피스톤(53)의 중공부(51) 둘레면과 접촉된 상태로 슬립이되면서 일어나는 마찰저항이 거의 생기지 않게 되어 결국 쿠션력 또한 생기지 않게된다.Meanwhile, as the vertical vibration acts on the tub 3, the cylinder 50 has a moving force in the vertical direction, so that the outside air is hollowed out through the through hole 52 formed at the upper end of the cylinder 50. This is possible because the air entering or exiting the part 51 enters the outside through the through hole 52 again. If the air does not enter or exit the hollow part 51 of the cylinder 50, Since the upper portion of the part 51 is always maintained in a vibration state, the cylinder 50 does not have a moving force in the vertical direction as much as the vertical vibration force of the tub 3, and accordingly, each recess groove 54 of the piston 53 is provided. As the friction ring 55 fitted in the slip is brought into contact with the circumferential surface of the hollow part 51 of the piston 53, the frictional resistance that is generated hardly occurs, and thus the cushioning force does not occur.

그러나 종래 이와같은 진동 감쇠장치는 한쌍의 쿠션부재가 피스톤의 각 요입홈에 끼워진 마찰링의 마찰저항에 의해서만 쿠션력을 가지면서 수직진동을 감쇠시켜 주는 역할을 함에 따라 쿠션력이 그만큼 감소되므로 인해 수직진동력의 감쇠효율이 낮아져 결국 전체 진동력 감쇠효율이 낮아지고, 이로인해 세탁 및 헹굼시에 발생되는 소음이 크게 줄어들지 못하는 문제점이 있었다.However, such a vibration damping device in the related art has a cushioning force as a pair of cushioning members have a cushioning force only by the frictional resistance of the friction ring fitted into each recessed groove of the piston, thereby reducing the vertical vibration. As the damping efficiency of the linear power is lowered, the overall damping efficiency is lowered, and thus, noise generated during washing and rinsing cannot be greatly reduced.

본 발명은 상기한 종래의 문제점을 해결하기 위하여 안출한 것으로써, 수직진동력의 감쇠역할을 하는 한쌍의 쿠션부재가 마찰저항에 의해 쿠션력을 가질 때 공기저항도 함께 받도록 일부 구조를 달리하여 쿠션력이 증대되도록 함에 따라 수직진동력의 감쇠효율을 높여 결국 전체 진동력 감쇠효율을 높이고자 하는데 그 목적이 있다.The present invention has been made in order to solve the above-mentioned conventional problems, the cushioning by varying some structures so that a pair of cushion members that act as a damping of the vertical vibration force also receives the air resistance when the cushioning force by the friction resistance As the force is increased, the damping efficiency of the vertical vibration force is increased to increase the overall damping efficiency.

상기 목적을 달성하기 위한 본 발명 형태에 따르면, 쿠션부재를 구성하는 피스톤의 외측둘레면중 실린더의 중공부 삽입부분 외측둘레에 원주방향으로 복수개의 요입홈이 형성되고, 상기 각 요입홈에는 외측둘레면이 실린더의 중공부 둘레에 접촉된 상태로 마찰링이 끼워진 것에 있어서, 상기 각 마찰링의 적소에 양단이 이격된 상태에서 서로 마주보도록 슬릿부를 형성하여서 된 드럼세탁기의 진동 감쇠장치가 제공된다.According to the present invention for achieving the above object, a plurality of concave grooves in the circumferential direction is formed in the outer peripheral portion of the hollow portion insertion portion of the cylinder of the outer peripheral surface of the piston constituting the cushion member, each of the concave grooves When the friction ring is fitted with the surface in contact with the circumference of the hollow part of the cylinder, a vibration damping device for a drum washing machine is formed by forming slits so as to face each other in a state where both ends are spaced apart in each of the friction rings.

도 1은 드럼 세탁기의 전체 구조를 개략적으로 나타낸 종단면도1 is a longitudinal sectional view schematically showing the overall structure of a drum washing machine

도 2는 종래 진동 감쇠장치의 요부 구성을 나타낸 분해사시도Figure 2 is an exploded perspective view showing the main configuration of the conventional vibration damping device

도 3은 종래 진동 감쇠장치의 요부 구성을 나타낸 종단면도Figure 3 is a longitudinal sectional view showing the main part configuration of a conventional vibration damping device

도 4는 본 발명 진동 감쇠장치의 요부 구성을 나타낸 분해사시도Figure 4 is an exploded perspective view showing the main configuration of the vibration damping device of the present invention

도 5는 본 발명 진동 감쇠장치의 요부 구성을 나타낸 종단면도5 is a longitudinal sectional view showing the main part configuration of the vibration damping device of the present invention;

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

5. 쿠션부재 50. 실린더5. Cushion member 50. Cylinder

51. 중공부 53. 피스톤51.Hollow Part 53.Piston

54. 요입홈 55. 마찰링54. Recessed groove 55. Friction ring

56. 슬릿부 57. 보강밴드56. Slit part 57. Reinforcement band

이하 본 발명을 일 실시예로 도시한 첨부된 도 4 내지 도 5를 참고로 하여 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the attached FIGS. 4 to 5 as an embodiment.

첨부된 도 4는 본 발명 진동 감쇠장치의 요부 구성을 나타낸 분해사시도이고, 도 5는 본 발명 진동 감쇠장치의 요부 구성을 나타낸 종단면도로써, 본 발명은 터브(3)의 외측둘레면 상부와 본체(1)의 상부면이 복수개의 지지스프링(4)으로 연결되어 세탁조(2)의 회전에 따라 발생되는 진동력중 수평진동력이 상기 각 지지스프링(4)에 의해 감쇠되도록 하고, 상기 터브(3)의 외측둘레면 하부와 본체(1)의 하부면이 좌우로 각각 하나씩 한쌍의 쿠션부재(5)로써 연결되어 세탁조(2)의 회전에 따라 발생되는 진동력중 수직진동력이 상기 각 쿠션부재(5)에 의해 감쇠되도록 한다.4 is an exploded perspective view showing the main configuration of the vibration damping device of the present invention, Figure 5 is a longitudinal cross-sectional view showing the main configuration of the vibration damping device of the present invention, the present invention is the outer peripheral surface top of the tub 3 and the main body The upper surface of (1) is connected to the plurality of support springs (4) so that the horizontal vibration force of the vibration force generated by the rotation of the washing tank (2) is attenuated by the respective support springs (4), the tub ( The lower side of the outer periphery of 3) and the lower side of the main body 1 are connected to each other by a pair of cushion members 5 one by one, and the vertical vibration force of the vibration force generated by the rotation of the washing tank 2 is the respective cushions. To be attenuated by the member (5).

상기 쿠션부재(5)는 하부가 개방된 상태로 중공부(51)를 가지며 상단이 터브(3)에 형성되어 있는 터브 연결편(3a)에 회동가능하게 힌지결합된 실린더(50)와, 상기 실린더의 상단에 형성되어 공기의 이동 통로 역할을 하는 통공(52)과, 개방부를 통해 상기 실린더(50)의 중공부(51)로 삽입되고 하단이 본체(1)에 형성되어 있는 본체 연결편(1a)에 회동가능하게 힌지결합된 피스톤(53)과, 상기 피스톤의 외측둘레면중 실린더(50)의 중공부(51) 삽입부분에 원주방향으로 형성된 복수개의 요입홈(54)과, 상기 각 요입홈에 끼워져 외측둘레면이 실린더(50)의 중공부(51) 둘레에 접촉된 마찰링(55)으로 구성되어 있다.The cushion member 5 includes a cylinder 50 having a hollow portion 51 having a lower portion thereof open and hinged rotatably to a tub connecting piece 3a having an upper end formed on the tub 3, and the cylinder. A through hole 52 formed at an upper end of the cylinder 50 to serve as a moving passage of air, and inserted into the hollow part 51 of the cylinder 50 through an opening part, and a lower end of the main body connecting piece 1a formed at the main body 1; A piston 53 rotatably hinged to the plurality of recesses, a plurality of recesses 54 formed in a circumferential direction at the insertion portion of the hollow portion 51 of the cylinder 50 of the outer circumferential surface of the piston; The outer peripheral surface is composed of a friction ring 55 which is fitted in contact with the circumference of the hollow part 51 of the cylinder 50.

또한 쿠션부재(5)를 구성하는 각 마찰링(55)의 적소에는 양단이 이격된 상태에서 서로 마주보도록 슬릿부(56)를 형성하여 각 마찰링(55)이 실린더(50)의 중공부(51) 둘레와 접촉되면서 마찰저항을 받을 때 공기가 상기 슬릿부(56)를 통해 이동하도록 함에 따라 공기저항도 함께 받도록 하고, 상기 마찰링(55)이 끼워진 피스톤(53)의 각 요입홈(54)은 그 높이차(t1)(t2)(t3)를 각기 달리하여 수직진동력에 따라 마찰링(55)에 의한 마찰저항값이 각각 달라지도록 하며, 상기 마찰링(55)의 안쪽 둘레면에는 금속재로된 보강밴드(57)를 일체화하여 장기간 사용시에도 마찰링(55)의 안쪽 둘레면이 소성변형되지 않도록 한다.In addition, in place of each friction ring 55 constituting the cushion member 5, the slit portion 56 is formed so as to face each other in a state where both ends are spaced apart, so that each friction ring 55 is a hollow portion of the cylinder 50 ( 51) As the air moves through the slit part 56 when it receives frictional resistance while being in contact with the circumference, it also receives air resistance, and each recess groove 54 of the piston 53 into which the friction ring 55 is fitted is provided. ) Is different from the height difference (t 1 ) (t 2 ) (t 3 ) so that the frictional resistance value by the friction ring 55 is varied according to the vertical vibration force, respectively, and the inner side of the friction ring 55 The reinforcing band 57 made of metal is integrated on the circumferential surface so that the inner circumferential surface of the friction ring 55 is not plastically deformed even in the long term use.

상기에서 각 마찰링(55)에 형성된 슬릿부(56)는 그 위치를 수직방향에 대해 서로 엇갈리게 하여 상기 슬릿부에 의한 공기저항이 커지도록 한다.The slits 56 formed in the friction rings 55 are staggered in position with respect to the vertical direction so that the air resistance by the slits increases.

이와같이 구성된 본 발명 진동 감쇠장치에 의해 진동력을 감쇠시키는 일련의 과정중 수평방향 진동을 감쇠시켜 주는 과정은 기 설명된 종래 과정과 동일하므로 생략하고, 이하에서는 수직방향 진동을 감쇠시켜 주는 과정에 대해서만 구체적으로 설명하면 다음과 같다.The attenuation of the horizontal vibration in the series of attenuation of the vibration force by the vibration damping device configured as described above is omitted because it is the same as the conventional process described above, and hereinafter only for the process of attenuating the vertical vibration. Specifically, it is as follows.

터브(3)에 수직진동이 작용하면, 상단이 상기 터브(3)에 형성된 터브 연결편(3a)에 힌지결합되어 있는 실린더(50)가 수직방향으로 이동력을 가지므로 본체(1)에 형성된 본체 연결편(1a)에 하단이 회동가능하게 힌지결합되어 있는 피스톤(53)이 상기 실린더(50)의 중공부(51) 내로 삽입되어 있고, 상기 피스톤(53)의 외측둘레면중 실린더(50)의 중공부(51) 삽입부분에는 원주방향으로 복수개의 요입홈(54)이 형성되어 있으며, 상기 각 요입홈에는 외측둘레면이 상기 실린더(50)의 중공부(51) 둘레에 접촉된 상태로 마찰링(55)이 끼워져 있음을 감안할 때 피스톤(53)이 실린더(50)의 중공부(51) 내에서 축방향으로 상,하이동하는 상태가 됨에 따라 상기 각 마찰링(55)이 피스톤(53)의 중공부(51) 둘레면과 접촉된 상태로 슬립이 일어나면서 마찰저항을 받게 되는데, 상기 각 마찰링(55)의 적소에는 양단이 이격된 상태에서 서로 마주보도록 슬릿부(56)가 형성되어 있으므로 상기 각 마찰링(55)이 실린더(50)의 중공부(51) 둘레와 접촉되면서 마찰저항을 받을 때 실린더(50) 내의 공기가 상기 슬릿부(56)를 통해 상,하로 이동함에 따라 공기저항도 함께 받게되고 이로인해 쿠션부재(5)의 쿠션력은 더욱 커지게 되어 터브(3)의 수직진동이 큰 폭으로 감쇠되는 것이다.When the vertical vibration is applied to the tub (3), the main body formed in the main body (1) because the upper end of the cylinder (50) hinged to the tub connecting piece (3a) formed in the tub (3) has a moving force in the vertical direction A piston 53, the lower end of which is hinged to the connecting piece 1a, is rotatably inserted into the hollow part 51 of the cylinder 50, and the piston 50 of the outer peripheral surface of the piston 53 A plurality of concave grooves 54 are formed in the circumferential direction in the hollow portion 51 insertion portion, and each concave groove has a frictional state in which the outer circumferential surface is in contact with the circumference of the hollow portion 51 of the cylinder 50. In view of the fact that the ring 55 is fitted, the friction ring 55 is moved to the piston 53 as the piston 53 is moved up and down in the axial direction in the hollow part 51 of the cylinder 50. Slip occurs in contact with the circumferential surface of the hollow part 51) and receives frictional resistance. Since the slit portions 56 are formed to face each other in the state where both ends are spaced apart from each other, the friction rings 55 may receive frictional resistance while being in contact with the circumference of the hollow 51 of the cylinder 50. When the air in the cylinder 50 moves up and down through the slit part 56, air resistance is also received, thereby increasing the cushioning force of the cushion member 5 so that the vertical vibration of the tub 3 occurs. This is a big damping.

상기에서 각 마찰링(55)에 형성된 슬릿부(56)에 의해 공기저항을 닫을 때 상기 각 마찰링(55)의 슬릿부(56) 위치가 축방향으로 서로 엇갈리게 되어 있으므로 상기 슬릿부를 통해 상,하로 이동하는 공기유로가 매우 복잡한 상태가 되고, 이 경우에는 공기저항을 더욱 많이 받게됨은 이해 가능하다.When the air resistance is closed by the slit portion 56 formed in each friction ring 55 in the above, since the position of the slit portions 56 of each friction ring 55 are mutually staggered in the axial direction, It is understood that the air flow path moving downward becomes a very complicated state, in which case more air resistance is received.

한편, 피스톤(53)에 형성되어 마찰링(55)이 각각 끼워져 있는 각 요입홈(54)은 그 높이차(t1)(t2)(t3)가 각기 달라져 있으므로 상기 각 마찰링(55)의 높이는 모두 동일함을 감안할 때 세탁시와 같이 수직진동력이 약할 때에는 각 마찰링중 어느 하나의 마찰링 만이 실린더(50)의 중공부(51) 둘레에 기밀접촉되면서 마찰저항을 일으키고 나머지 마찰링은 실린더(50)의 중공부(51) 둘레면 약간만 접촉되면서 마찰저항을 일으키지 않지만, 탈수시와 같이 수직진동력이 강할 때에는 각 마찰링(55) 모두가 실린더(50)의 중공부(51) 둘레에 순차적으로 기밀접촉되면서 마찰저항을 일으키는데, 이는 수직진동력이 약해 하나의 마찰링에 의한 마찰저항으로도 진동감쇠가 가능할 경우 그외 나머지 마찰링은 마찰저항을 직접적으로 일으키지 않도록 하여 수직진동력의 강약에 따라 마찰저항값이 그에 비례된 만큼 달라지도록 하기 위함에 있다.On the other hand, each of the recessed grooves 54 formed in the piston 53 and the friction ring 55 is fitted therein is different in height difference t 1 (t 2 ) (t 3 ), so that the respective friction rings 55 Considering that the heights of the same) are the same, when the vertical vibration force is weak, such as when washing, only one of the friction rings is in a gas tight contact around the hollow part 51 of the cylinder 50, causing frictional resistance and remaining friction. The ring does not cause frictional resistance while only slightly contacting the circumferential surface of the hollow part 51 of the cylinder 50, but when the vertical vibration force is strong, such as when dewatering, all of the friction rings 55 are hollow part 51 of the cylinder 50. ) In order to achieve frictional resistance as the airtight contact sequentially, the vertical vibration force is weak so that the vibration attenuation is possible even with the frictional resistance of one friction ring, so that the other friction ring does not directly generate frictional resistance. In strength and weakness Therefore, the frictional resistance value is to be changed in proportion to it.

한편 각 마찰링(55)의 안쪽둘레면인 피스톤(53) 접촉면에는 금속재로된 보강밴드(57)가 일체화되어 있으므로 상기 각 마찰링(55)에 의해 마찰저항이 일어날 때 프라스틱 몰드물인 상기 마찰링의 안쪽 둘레가 보강밴드(57)에 의해 소성변형되지 않음은 이해 가능하다.On the other hand, since the reinforcing band 57 made of metal is integrated in the contact surface of the piston 53, which is an inner circumferential surface of each friction ring 55, the friction ring, which is a plastic mold, when friction resistance occurs by the friction rings 55. It is understood that the inner circumference of is not plastically deformed by the reinforcing band 57.

이하 본 발명에서 설명되지 않은 작용은 기 설명된 종래의 작용을 참고하면 이해 가능하리라 생각된다.Actions not described in the present invention below are considered to be understandable with reference to the conventional actions described above.

그러므로 본 발명은 수직진동력의 감쇠 역할을 하는 한쌍의 쿠션부재가 마찰저항에 의해 쿠션력을 가질 때 공기저항도 함께 받으므로 쿠션력이 상기 공기저항력 만큼 증대됨에 따라 수직진동력의 감쇠효율이 높아져 결국 전체 진동력 감쇠효율이 높아지고, 이로인해 세탁 및 헹굼시에 발생되는 소음이 크게 줄어드는 효과가 있다.Therefore, the present invention receives the air resistance when the pair of cushion members, which act as attenuation of the vertical vibration force, has a cushioning force by frictional resistance, so that the damping efficiency of the vertical vibration force increases as the cushioning force is increased by the air resistance force. As a result, the overall vibration force attenuation efficiency is increased, thereby reducing the noise generated during washing and rinsing.

Claims (4)

쿠션부재를 구성하는 피스톤의 외측둘레면중 실린더의 중공부 삽입부분 외측둘레에 원주방향으로 복수개의 요입홈이 형성되고, 상기 각 요입홈에는 외측둘레면이 실린더의 중공부 둘레에 접촉된 상태로 마찰링이 끼워진 것에 있어서, 상기 각 마찰링의 적소에 양단이 이격된 상태에서 서로 마주보도록 슬릿부를 형성하여서 됨을 특징으로 하는 드럼세탁기의 진동 감쇠장치.A plurality of concave grooves are formed in the circumferential direction on the outer circumference of the hollow portion insertion portion of the cylinder among the outer circumferential surfaces of the piston constituting the cushion member, and the outer circumferential surface is in contact with the circumference of the hollow portion of the cylinder. In the friction ring is fitted, the vibration damping device of the drum washing machine, characterized in that the slit portion is formed so as to face each other in the state in which both ends are spaced apart. 제 1 항에 있어서,The method of claim 1, 각 마찰링에 형성된 슬릿부의 위치를 수직방향에 대해 서로 엇갈리게 하여 상기 슬릿부에 의한 공기저항이 커지도록 함을 특징으로 하는 드럼세탁기의 진동 감쇠장치.Vibration damping device of the drum washing machine, characterized in that the air resistance by the slit portion is increased by staggering the position of the slit portion formed in each friction ring in the vertical direction. 제 1 항에 있어서,The method of claim 1, 피스톤에 형성된 각 요입홈의 높이차를 각기 달리하여 상기 각 요입홈에 끼워진 마찰링의 마찰저항값이 수직진동력에 따라 각각 달라지도록 함을 특징으로 하는 드럼세탁기의 진동 감쇠장치.Vibration damping device of the drum washing machine, characterized in that the frictional resistance value of the friction ring fitted in the respective recessed grooves are different depending on the vertical vibration force by varying the height difference of each recessed groove formed in the piston. 제 1 항에 있어서,The method of claim 1, 각 마찰링의 안쪽 둘레면에 금속재로된 보강밴드를 일체화하여 장기간 사용시에도 프라스틱 몰드물인 상기 각 마찰링의 안쪽 둘레면이 소성변형되지 않도록 함을 특징으로 하는 드럼세탁기의 진동 감쇠장치.A vibration damping device for a drum washing machine, characterized by integrating a reinforcing band made of metal on the inner circumferential surface of each friction ring so that the inner circumferential surface of each friction ring, which is a plastic mold, is not plastically deformed even after long-term use.
KR1019980039065A 1998-09-21 1998-09-21 Device for reducing vibration of drum washing machine KR20000020454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980039065A KR20000020454A (en) 1998-09-21 1998-09-21 Device for reducing vibration of drum washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980039065A KR20000020454A (en) 1998-09-21 1998-09-21 Device for reducing vibration of drum washing machine

Publications (1)

Publication Number Publication Date
KR20000020454A true KR20000020454A (en) 2000-04-15

Family

ID=19551359

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980039065A KR20000020454A (en) 1998-09-21 1998-09-21 Device for reducing vibration of drum washing machine

Country Status (1)

Country Link
KR (1) KR20000020454A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195089A (en) * 2015-04-30 2016-12-07 青岛海尔洗衣机有限公司 A kind of variable-damp vibration damper and washing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195089A (en) * 2015-04-30 2016-12-07 青岛海尔洗衣机有限公司 A kind of variable-damp vibration damper and washing machine

Similar Documents

Publication Publication Date Title
KR100437062B1 (en) The suspension apparatus of washing machine
KR20000020454A (en) Device for reducing vibration of drum washing machine
KR101033564B1 (en) Multiple damping device for washer
KR100423981B1 (en) Washing Machine
KR100269380B1 (en) Device for proventing deformation of upper corner in washing machine
KR100272584B1 (en) Damping device of washing machine
KR100488046B1 (en) Suspension apparatus of top-loading washer
KR200233841Y1 (en) Device for damping in washing-machine
KR101079082B1 (en) 2 Dual damping device for washer
KR200291279Y1 (en) Damping apparatus of washing machine
KR101033563B1 (en) Dual damping device for washer
KR100556493B1 (en) device for preventing rubbing-noise from between upper pivot &suspension bar for washing machine
KR20040018752A (en) Drum type washing machine
KR0127622Y1 (en) Detecting apparatus of weight of laundry for a washing machine
KR200142966Y1 (en) Damping apparatus of a washer
KR0169350B1 (en) Device of preventing vibration for a washing machine
KR200141501Y1 (en) Damper apparatus of a washing machine
KR100348266B1 (en) A damper for drum type washers
KR950003682Y1 (en) Equilibrium apparatus for washing machine
KR0138907Y1 (en) A vibration decreasing apparatus of a washing machine
KR19980020959U (en) washer
KR100229661B1 (en) The silence apparatus of a washing machine
KR19990041366U (en) Upper corner deformation preventing device of washing machine
KR20010001147U (en) Connecting structure of suspend pole of washer
KR19990080207A (en) Damping device for washing machine

Legal Events

Date Code Title Description
N231 Notification of change of applicant
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid