KR20080113617A - Drum type washing machine - Google Patents

Drum type washing machine Download PDF

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Publication number
KR20080113617A
KR20080113617A KR1020070062331A KR20070062331A KR20080113617A KR 20080113617 A KR20080113617 A KR 20080113617A KR 1020070062331 A KR1020070062331 A KR 1020070062331A KR 20070062331 A KR20070062331 A KR 20070062331A KR 20080113617 A KR20080113617 A KR 20080113617A
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KR
South Korea
Prior art keywords
washing machine
tub body
forming
rotating tub
line portion
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Application number
KR1020070062331A
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Korean (ko)
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KR101392423B1 (en
Inventor
김진두
Original Assignee
삼성전자주식회사
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Priority to KR1020070062331A priority Critical patent/KR101392423B1/en
Publication of KR20080113617A publication Critical patent/KR20080113617A/en
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Publication of KR101392423B1 publication Critical patent/KR101392423B1/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
    • D06F37/22—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
    • D06F37/02—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
    • 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
    • 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
    • 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
    • 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
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs
    • 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

Abstract

A drum type washing machine is provided to release the intensity through a shape formed on a body panel of a rotating tub in roll forming process, and thus maintain original shape after the roll forming process. A drum type washing machine includes a rotating tub body(20). The rotating tub body is formed like a cylinder type by roll-forming a sheet where a number of forming part(30) is formed. The forming part includes a horizontal stripe part(32) and a vertical stripe part(31). The horizontal stripe part is formed to the roll forming direction. The vertical stripe part is alternately with the horizontal stripe part. The horizontal stripe part is lower than that of the vertical stripe part.

Description

드럼세탁기{Drum type washing machine}Drum washing machine {Drum type washing machine}

도 1은 본 발명에 따른 드럼세탁기를 개략적으로 나타내는 단면도,1 is a cross-sectional view schematically showing a drum washing machine according to the present invention,

도 2는 본 발명에 따른 드럼세탁기의 회전조 바디의 전개도,2 is an exploded view of a rotating tub body of a drum washing machine according to the present invention;

도 3은 본 발명에 따른 드럼세탁기의 회전조 바디를 개략적으로 나타내는 사시도 및 부분 확대도,3 is a perspective view and a partially enlarged view schematically showing a rotating tub body of the drum washing machine according to the present invention;

도 4a는 도 3의 B-B' 단면도,4A is a cross-sectional view taken along line B-B 'of FIG. 3;

도 4b는 도 3의 c-c' 단면도,4b is a cross-sectional view taken along line c-c 'of FIG.

*도면의 주요부분에 대한 부호 설명** Description of symbols on the main parts of the drawings *

1 : 드럼세탁기 10 : 하우징1: drum washing machine 10: housing

12 : 구동 모터 13 : 급수 장치12: drive motor 13: water supply device

14 : 배수 장치 20 : 회전조 바디14: drainage 20: rotating tub body

21 : 리프터 30 : 포밍부21: lifter 30: forming unit

31 : 세로줄 부 32 : 가로줄 부31: vertical line part 32: horizontal line part

35 : 통공35: through-hole

본 발명은 드럼세탁기 회전조 바디에 관한 것으로, 롤 포밍 공정시 회전조 바디 판재에 형성된 형상에 의한 강도를 완화시켜 롤 포밍 공정 후에도 그 형상을 원형으로 유지하고, 그에 따른 동심도 평탄도를 유지하여 제품의 안정적인 생산과 진동 개선에 탁월한 효과가 있는 드럼세탁기에 관한 것이다.The present invention relates to a drum washing machine rotating bath body, to reduce the strength due to the shape formed on the rotating bath body plate during the roll forming process to maintain the shape in a circular shape even after the roll forming process, thereby maintaining the concentricity flatness product The present invention relates to a drum washing machine having an excellent effect on stable production and vibration improvement.

일반적으로 드럼세탁기는 회전조 바디가 회전할 때 발생하는 세탁물 및 세탁수의 낙차를 이용하여 세탁물이 세탁되도록 마련된 장치로, 외관을 이루는 케이스와, 세탁수가 담수되도록 케이스 내부에 고정되는 터브를 구비하며, 회전조 바디는 이러한 터브 내부에 구동모터에 의해 회전 가능하도록 설치된다.In general, a drum washing machine is a device provided to wash laundry using a drop of laundry and washing water generated when a rotating tub body rotates. The drum washing machine includes a case forming an exterior and a tub fixed inside the case so that washing water is fresh. , The rotating tub body is installed to be rotatable by the drive motor in the tub.

시계 방향과 반시계 방향으로 교번적으로 회전하는 회전조 바디에 의해 세탁물은 세탁수와 함께 회전조 바디의 내주면을 따라 상ㅇ하 방향으로 낙하 운동하고, 그로 인해 발생되는 세탁물과 회전조 바디의 마찰에 의해 세탁이 이루어진다.By rotating the rotating tub body alternately clockwise and counterclockwise, the laundry falls up and down along the inner circumferential surface of the rotating tub body along with the washing water, and the friction between the laundry and the rotating tub body is generated. Washing is done by.

여기서, 회전조 바디 내주면에 축방향 길이에 상응하게 마련된 다수개의 리프터가 구비되어 세탁물의 상승 운동을 도와준다.Here, a plurality of lifters provided on the inner circumferential surface of the rotating tub body corresponding to the axial length are provided to assist the lifting motion of the laundry.

그리고, 세탁력의 가시화 및 강도 향상을 위해 회전조 바디의 내주면에 소정 형상이 주어지며, 이러한 드럼세탁기 회전조 바디에 관한 것으로, 대한민국 공개특허 2002-0093274에는 세탁력이 향상되도록 내면에 세탁돌기가 형성된 드럼세탁기의 회전조 바디에 대해 개시되어 있다.In addition, a predetermined shape is given to the inner circumferential surface of the rotating tub body to visualize the washing force and improve the strength, and relates to the drum washing machine rotating tub body. A rotating tub body of a washing machine is disclosed.

드럼세탁기용 회전조 바디는 직사각형상의 판재를 롤러 사이로 통과시켜 판재가 원통형이 되도록 하는 롤 포밍(roll forming) 공정을 통해 원통 형상의 가공 물이 된다.The rotating tub body for a drum washing machine is a cylindrical workpiece through a roll forming process of passing a rectangular plate between rollers so that the plate becomes cylindrical.

그러나, 이러한 종래의 드럼세탁기 회전조 바디는 롤 포밍 공정시 롤 포밍 방향 즉, 가로측 방향의 힘이 세져 롤 포밍 후 회전조 바디의 형태가 원형이 아니라 삼각형 형상으로 찌그러지고, 그에 따른 작업성이 떨어진다.However, such a conventional drum washing machine rotating tub body has a roll forming direction, that is, a force in the transverse direction is increased during the roll forming process, so that the shape of the rotating tub body after the roll forming is crushed into a triangular shape instead of a circular shape, and thus workability Falls.

또한, 탈수 행정 시, 회전조 바디의 동심도와 평탄도에 문제를 주어 진동을 발생시키고, 진동에 의한 소음 발생의 문제점이 있었다.In addition, during the dehydration stroke, the concentricity and flatness of the rotating tub body gives a problem, causing the vibration, there was a problem of noise generated by the vibration.

본 발명은 상기한 문제점을 해결하기 위하여 안출한 것으로, 롤 포밍 공정 시 회전조 바디 판재에 형성된 형상에 의한 강도를 완화시켜 롤 포밍 공정 후에도 그 형상을 원형으로 유지할 수 있는 드럼세탁기를 제공하는 것을 목적으로 한다.The present invention has been made to solve the above problems, the object of the present invention is to provide a drum washing machine that can maintain the shape in a circular shape after the roll forming process by relieving the strength due to the shape formed on the rotating body body plate during the roll forming process It is done.

상기한 바와 같은 목적을 달성하기 위하여 본 발명은 다수의 포밍부가 형성된 판재를 롤 포밍 하여 원통 형상으로 형성된 회전조 바디를 포함하는 드럼세탁기에 있어서, 상기 포밍부는 롤 포밍 방향으로 형성된 가로줄 부와, 상기 가로줄 부와 교차되게 형성된 세로줄 부를 포함하며, 상기 가로줄 부는 상기 세로줄 부 보다 그 높이가 낮은 것을 특징으로 한다.In order to achieve the above object, the present invention provides a drum washing machine comprising a rotating tubular body formed in a cylindrical shape by roll forming a plate formed with a plurality of forming parts, wherein the forming part comprises a horizontal line part formed in a roll forming direction, and It includes a vertical line portion formed to cross the horizontal line portion, the horizontal line portion is characterized in that its height is lower than the vertical line portion.

상기 포밍부는 상기 회전조 바디의 내주면에 형성된 함몰부와, 상기 회전조 바디의 외주면에 형성된 돌출부를 포함하는 것을 특징으로 한다.The forming part may include a depression formed on an inner circumferential surface of the rotating tub body and a protrusion formed on an outer circumferential surface of the rotating tub body.

상기 세로줄 부의 방향은 롤포링 방향과 수직되는 것을 특징으로 한다.The direction of the vertical line portion is characterized in that perpendicular to the rolling direction.

상기 세로줄 부의 높이는 롤 포밍 면과 동일하게 형성되는 것을 특징으로 한 다.The height of the vertical line portion is characterized in that formed in the same as the roll forming surface.

또한, 다수의 포밍부가 형성된 판재를 롤 포밍 하여 원통 형상으로 형성하는 회전조 바디에 있어서, 상기 포밍부는 롤 포밍 방향으로 형성된 가로줄 부와, 상기 가로줄 부와 교차되게 형성된 세로줄 부를 포함하며, 상기 가로줄 부는 상기 세로줄 부 보다 그 높이가 낮은 것을 특징으로 한다.In addition, in the rotary bath body roll-forming a plate formed with a plurality of forming parts to form a cylindrical shape, the forming portion includes a horizontal line portion formed in the roll forming direction, and a vertical line portion formed to cross the horizontal line portion, the horizontal line portion Its height is lower than that of the vertical stripe.

이하, 본 발명에 따른 실시예를 첨부된 예시 도면을 참고로 하여 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 드럼세탁기를 개략적으로 나타내는 단면도이고, 도 2는 본 발명에 따른 드럼세탁기의 회전조 바디의 전개도이며, 도 3은 본 발명에 따른 드럼세탁기의 회전조 바디를 개략적으로 나타내는 사시도 및 부분 확대도이고, 도 4a는 도 3의 B-B' 단면도이며, 도 4b는 도 3의 c-c' 단면도이다.1 is a cross-sectional view schematically showing a drum washing machine according to the present invention, Figure 2 is an exploded view of the rotating tub body of the drum washing machine according to the present invention, Figure 3 is a schematic representation of the rotating tub body of the drum washing machine according to the present invention 4 is a sectional view taken along line BB 'of FIG. 3, and FIG. 4B is a sectional view taken along line cc' of FIG.

도 1에 도시한 바와 같이, 본 발명에 따른 드럼세탁기(1)는 외관을 형성하는 하우징(10)과, 하우징(10)의 내부에 설치되며 세탁수가 담겨지는 터브(11)와, 터브(11) 내에서 회전 가능하게 배치되며 세탁물이 투입되어 세탁이 이루어지게 하는 회전조 바디(20)와, 회전조 바디(20)을 회전시키도록 하는 구동 모터(12)와, 터브(11) 내측으로 세탁수를 공급하는 급수 장치(13)와, 터브(11)내의 세탁수를 외부로 배출하는 배수장치(14)를 포함하여 이루어진다.As shown in FIG. 1, the drum washing machine 1 according to the present invention includes a housing 10 forming an external appearance, a tub 11 installed inside the housing 10 and containing wash water, and a tub 11. Rotating inside the rotating tub and the laundry is put into the washing tub 20, the drive motor 12 to rotate the tub 20, and the tub 11 to wash inside It comprises a water supply device 13 for supplying water, and a drainage device 14 for discharging the wash water in the tub 11 to the outside.

하우징(10) 내측에는 원통형의 터브(11)가 눕혀진 상태로 터브(11)의 축방향 과 드럼세탁기(1)가 설치되는 공간의 바닥면이 평행하도록 설치되고, 터브(11)의 내측에는 회전조 바디(20)가 구동 모터(12)로 부터 구동력을 전달받아 회전 가능하도록 터브(11)와 동축으로 설치된다.Inside the housing 10, the cylindrical tub 11 is laid down so that the axial direction of the tub 11 and the bottom surface of the space in which the drum washing machine 1 is installed are parallel to each other, and inside the tub 11. The rotating tub body 20 is coaxially installed with the tub 11 so as to be rotated by receiving a driving force from the driving motor 12.

터브(11)와 회전조 바디(20)의 전면은 회전조 바디(20)의 내부로 세탁할 세탁물을 넣거나 세탁이 완료된 세탁물을 꺼낼 수 있도록 개방되어 있으며, 하우징(10)의 전면에는 터브(11)와 회전조 바디(20)의 개방된 전면을 폐쇄하기 위한 도어(15)가 힌지 결합되어 있다.The front of the tub 11 and the rotating tub body 20 is open to put the laundry to be washed into the inside of the rotating tub body 20 or to take out the laundry after the washing is completed, the tub (11) on the front of the housing 10 ) And a door 15 for closing the open front of the rotating tub body 20 is hinged.

따라서, 회전조 바디(20)의 내부에 세탁물을 넣고 동작시키면, 급수 장치(13)로 부터 세제가 용해된 세탁수가 공급되어 세탁을 수행한다.Therefore, when the laundry is put into the inside of the rotating tub body 20, the washing water in which detergent is dissolved from the water supply device 13 is supplied to perform washing.

이때, 구동 모터(12)를 정역 회전시켜 회전조 바디(20)가 스윙운전 하도록 회전조 바디(20)의 중심에 회전축(미도시)이 결합되어, 구동 모터(12)의 회전력을 전달 받는다.At this time, the rotating shaft (not shown) is coupled to the center of the rotating tub body 20 so that the rotating tub body 20 swings by rotating the driving motor 12 forward and backward, and receives the rotational force of the driving motor 12.

구동 모터(12)의 회전에 따라 회전조 바디(20) 내부에 설치된 리프터(21)에 의해 세탁물이 걸려 상승하게 되고 상승한 세탁물은 다시 회전조 바디(20) 하부로 낙하하게 되어 세탁물이 고르게 세탁되도록 한다.As the drive motor 12 rotates, the laundry is caught and lifted by the lifter 21 installed in the rotary tub body 20, and the raised laundry falls back to the rotary tub body 20 so that the laundry is washed evenly. do.

세탁이 완료되면, 배수 장치(14)를 통해 세탁수가 배출된다.When the washing is completed, the washing water is discharged through the drainage device (14).

도 2와 도3에 도시하는 바와 같이, 본 발명에 따른 드럼세탁기(1)의 회전조 바디(20)는 소정 길이 및 폭을 갖는 판재(P)를 롤 포밍(roll forming) 가공하여 양 끝단이 연결되지 않은 원통 형상으로 형성하고, 롤 포밍이 끝난 판재(P)의 양단을 용접과 같은 방법을 통해 서로 연결되도록 성형한다.As shown in Figures 2 and 3, the rotating tub body 20 of the drum washing machine 1 according to the present invention is formed by roll forming a plate (P) having a predetermined length and width to both ends are It is formed in a cylindrical shape that is not connected, and both ends of the roll-formed plate (P) is molded to be connected to each other by a method such as welding.

판재(P)는 알루미늄과 같이 내식성을 갖는 스테인레스(stainless steel) 재질로 형성되며, 세탁물과 판재(P) 사이에 작용하는 마찰력을 증가시켜 세탁력을 향상시키기 위해 다수의 포밍부(30)가 형성된다.The plate P is formed of stainless steel having corrosion resistance, such as aluminum, and a plurality of forming portions 30 are formed to increase the friction force acting between the laundry and the plate P to improve the washing force. .

포밍부(30)는 롤 포밍 방향으로 형성된 가로줄 부(32)와 가로줄 부(32)와 교차되게 형성된 세로줄 부(31)를 포함하며, 후술할 회전조 바디(20)의 내주면에 형성된 함몰부(30a)와 회전조 바디(20)의 외주면에 형성된 돌출부(30b)를 포함한다.The forming unit 30 includes a horizontal line part 32 formed in the roll forming direction and a vertical line part 31 formed to intersect the horizontal line part 32, and includes a depression formed on an inner circumferential surface of the rotating tub body 20 to be described later ( 30a) and a protrusion 30b formed on the outer circumferential surface of the rotating tub body 20.

또한, 판재(P)의 소정 위치, 즉 다수의 포밍부(30) 사이에 리프터(21) 설치를 위한 리프터 설치공(20c)이 형성된 리프터 설치부(20a)가 형성된다.In addition, a lifter mounting portion 20a having a lifter mounting hole 20c for mounting the lifter 21 is formed between a predetermined position of the plate P, that is, the plurality of forming portions 30.

리프터 설치부(20a)는 판재(P)의 포밍부(30) 및 다른 부분보다 상대적으로 강도가 낮아, 리프터 설치부(20a)의 양단에 롤링보조부(20b)를 형성하여 강도를 보강한다.The lifter mounting portion 20a is relatively lower in strength than the forming portion 30 and other portions of the plate material P, thereby forming rolling auxiliary portions 20b at both ends of the lifter mounting portion 20a to reinforce the strength.

판재(P)의 폭 방향 양측 단부에는 판재(P)에 의해 회전조 바디(20)가 형성된 후, 도시되지 않은 전면 커버 및 후면 커버가 고정 설치되는 프레임부(20d)가 형성되어 있다.After the rotary tub body 20 is formed by the plate material P, the frame part 20d in which the front cover and the back cover which are not shown are fixed are formed in the width direction both ends of the plate material P.

판재(P)의 길이 방향으로 서로 이격되게 형성된 다수의 포밍부(30)는 판재(P)의 폭 방향으로 형성된 세로줄 부(31)와, 판재(P)의 길이 방향으로 형성된 가로줄 부(32)를 포함한다.A plurality of forming parts 30 formed spaced apart from each other in the longitudinal direction of the plate (P) has a vertical line portion 31 formed in the width direction of the plate (P), and a horizontal line portion 32 formed in the longitudinal direction of the plate (P) It includes.

포밍부(30)는 회전조 바디(20)의 내면에 형성된 함몰부(30a)와 외면에 형성된 돌출부(30b)를 포함하고, 함몰부(30a)의 가장 하측에 물이 흐를 수 있도록 관통 형성된 통공(35)이 마련된다.The forming unit 30 includes a recess 30a formed on the inner surface of the rotating tub body 20 and a protrusion 30b formed on the outer surface thereof, and a through hole formed so that water flows through the bottom of the recess 30a. 35 is provided.

이때, 세로줄 부(31)의 방향은 판재(P)의 롤 포밍 방향과 수직되는 방향이며, 그 높이는 롤 포밍 면과 동일하고, 가로줄 부(32)의 방향은 판재(P)의 롤 포밍 방향과 동일하고, 그 높이는 세로줄 부(31) 보다 낮다.At this time, the direction of the vertical line part 31 is a direction perpendicular to the roll forming direction of the plate material P, the height is the same as the roll forming surface, and the direction of the horizontal line part 32 is the same as the roll forming direction of the plate material P. The same, and its height is lower than the vertical stripe portion 31.

이러한, 세로줄 부(31)와 가로줄 부(32)가 형성된 판재(P)의 롤 포밍 시, 세로줄 부(31)와 가로줄 부(32)는 판재(P)의 롤링 강성에 영향을 주며, 이때, 롤 포밍 방향과 동일한 방향으로 형성되는 가로줄 부(32)는 상대적으로 판재(P)의 롤링을 방해하게 되고, 롤 포밍 방향에 수직된 세로줄 부(31)는 롤링을 원활하게 한다.In the roll forming of the plate material P on which the vertical line part 31 and the horizontal line part 32 are formed, the vertical line part 31 and the horizontal line part 32 affect the rolling rigidity of the plate material P. In this case, The horizontal line part 32 formed in the same direction as the roll forming direction relatively interferes with the rolling of the plate material P, and the vertical line part 31 perpendicular to the roll forming direction smoothly rolls.

따라서, 세로줄 부(31) 보다 낮게 형성된 가로줄 부(32)는 세로줄 부(31)와 가로줄 부(32) 사이의 높이 차(e)를 형성하고, 이러한 높이 차(e)를 갖는 세로줄 부(31)의 소정 부분은 판재(P)의 롤링을 원활하게 하며, 가로줄 부(32)와 세로줄 부(31) 그리고, 리프터 설치부(20a)가 마련되는 판재(P)의 강도를 완화 시킨다.Accordingly, the horizontal line portion 32 formed lower than the vertical line portion 31 forms a height difference e between the vertical line portion 31 and the horizontal line portion 32, and the vertical line portion 31 having this height difference e. The predetermined portion of) smoothes the rolling of the plate (P), and relaxes the strength of the plate (P) in which the horizontal line portion 32, the vertical line portion 31, and the lifter installation portion (20a) is provided.

도 4a 와 도 4b에 도시한 바와 같이, 본 발명에 의한 회전조 바디(20)를 이루는 판재(P)의 포밍부(30)는 함몰부(30a)와 돌출부(30b)를 포함한다.As shown in Figures 4a and 4b, the forming portion 30 of the plate (P) constituting the rotating tub body 20 according to the present invention includes a depression 30a and a protrusion 30b.

함몰부(30a)는 회전조 바디(20)의 내면에 형성되며, 회전조 바디(20) 내측을 향해 돌출된 세로줄 부(31)에 의해서 하측으로 함몰된 형상을 갖는다. 그 최 하측부에는 소정 직경의 통공(35)이 형성되며, 통공(35)을 통해 세탁수가 배출된다.The depression 30a is formed on the inner surface of the rotating tub body 20 and has a shape recessed downward by the vertical string portion 31 protruding toward the inner side of the rotating tub body 20. The lowermost portion is formed with a through hole 35 having a predetermined diameter, and the wash water is discharged through the through hole 35.

여기서, 세로줄 부(31)는 상측, 즉 회전조 바디(20)의 내측을 향해 돌출되며, 세로줄 부(31) 보다 낮은 위치에 가로줄 부(32)가 돌출되어 있다.Here, the vertical string portion 31 is projected toward the upper side, that is, the inner side of the rotating tub body 20, the horizontal string portion 32 is projected to a lower position than the vertical string portion 31.

가로줄 부(32)는 세로줄 부(31)로 부터 높이차(e) 만큼 하측에 위치하며, 함몰부(30a)의 내면을 이루도록 통공(35) 쪽으로 경사지게 마련된다.The horizontal line part 32 is positioned downward from the vertical line part 31 by the height difference e, and is provided to be inclined toward the through hole 35 to form an inner surface of the recessed part 30a.

그리고, 돌출부(30b)는 회전조 바디(20)의 외면에 형성되며, 회전조 바디(20) 내면의 함몰부(30a)에 대응되게 형성되며, 돌출부(30b) 최 상측 단부에는 세탁수의 배출을 위한 통공(35)이 마련된다.Then, the protrusion 30b is formed on the outer surface of the rotating tub body 20, is formed to correspond to the depression 30a of the inner surface of the rotating tub body 20, discharge of the wash water at the top end of the protrusion (30b) A through hole 35 is provided.

세로줄 부(31)와 가로줄 부(32) 사이에 형성되는 높이차(e)는 가로줄 부(32)의 강성을 완화하는 동시에, 세로줄 부(31)와 리프터 설치부(20a)가 형성된 판재(P) 의 평탄도를 유지하게 한다.The height difference e formed between the vertical string portion 31 and the horizontal string portion 32 relaxes the rigidity of the horizontal string portion 32 and at the same time, the plate member P on which the vertical string portion 31 and the lifter mounting portion 20a are formed. ) Flatness.

따라서, 판재(P)의 포밍부(30)를 이루는 세로줄 부(31)와 가로줄 부(32)에 있어서, 세로줄 부(31)의 높이는 롤 포밍 면과 동일하게 하고, 가로줄 부(32)의 높이를 세로줄 부(31) 보다 낮게 하여, 롤 포밍 시 판재(P)에 적용되는 강성을 평탄하게 유지하고 롤 포밍의 완료 후에, 원형으로 형성되는 회전조 바디(30)의 동심도를 유지하여 진동과, 진동에 따른 소음을 방지한다.Therefore, in the vertical line part 31 and the horizontal line part 32 which form the forming part 30 of the board | plate material P, the height of the vertical line part 31 is made the same as the roll forming surface, and the height of the horizontal line part 32 is provided. To lower than the vertical line part 31, to maintain the rigidity applied to the plate material (P) in the roll forming flat and after the completion of the roll forming, to maintain the concentricity of the rotating tub body 30 formed in a circular shape, vibration, Prevent noise caused by vibration.

이상에서 설명한 바와 같이 상기와 같은 구성을 갖는 본 발명은 회전조 바디를 제작하기 위한 판재에 형성된 포밍부의 가로줄 부를 세로줄 부 보다 낮게 하여 롤 포밍 후, 판재에 형성된 형상에 의한 강도를 완화시켜 판재의 평탄도를 유지하여 원형으로 형성할 수 있는 효과가 있다.As described above, the present invention having the configuration as described above flattens the plate by reducing the strength due to the shape formed on the plate after roll forming by lowering the horizontal line portion of the forming portion formed in the plate for manufacturing the rotating tub body than the vertical line portion. There is an effect that can be formed in a circular shape by maintaining the degree.

또한, 회전조 드럼의 동심도를 유지하여 제품의 안정적인 생산과 진동 개선에 탁월한 효과가 있다.In addition, by maintaining the concentricity of the rotating drum drum has an excellent effect on the stable production of the product and vibration improvement.

Claims (5)

다수의 포밍부가 형성된 판재를 롤 포밍 하여 원통 형상으로 형성된 회전조 바디를 포함하는 드럼세탁기에 있어서,In a drum washing machine comprising a rotating tub body formed in a cylindrical shape by roll forming a plate formed with a plurality of forming parts, 상기 포밍부는 롤 포밍 방향으로 형성된 가로줄 부와, 상기 가로줄 부와 교차되게 형성된 세로줄 부를 포함하며,The forming portion includes a horizontal line portion formed in the roll forming direction, and a vertical line portion formed to cross the horizontal line portion, 상기 가로줄 부는 상기 세로줄 부 보다 그 높이가 낮은 것을 특징으로 하는 드럼세탁기.The horizontal line portion drum washing machine, characterized in that the height is lower than the vertical line portion. 제1항에 있어서,The method of claim 1, 상기 포밍부는 상기 회전조 바디의 내주면에 형성된 포밍부와, 상기 회전조 바디의 외주면에 형성된 돌출부를 포함하는 것을 특징으로 하는 드럼세탁기.The forming unit drum washing machine comprising a forming unit formed on the inner circumferential surface of the rotating tub body, and a protrusion formed on the outer circumferential surface of the rotating tub body. 제1항에 있어서,The method of claim 1, 상기 세로줄 부의 방향은 롤 포밍 방향과 수직되는 것을 특징으로 하는 드럼세탁기.The direction of the vertical strip portion drum washing machine, characterized in that perpendicular to the roll forming direction. 제1항에 있어서,The method of claim 1, 상기 세로줄 부의 높이는 롤 포밍 면과 동일하게 형성되는 것을 특징으로 하는 드럼세탁기.The height of the vertical strip portion drum washing machine, characterized in that formed on the same as the roll forming surface. 다수의 포밍부가 형성된 판재를 롤 포밍 하여 원통 형상으로 형성하는 회전조 바디에 있어서,In the rotary tub body formed by rolling a plate formed with a plurality of forming parts in a cylindrical shape, 상기 포밍부는 롤 포밍 방향으로 형성된 가로줄 부와, 상기 가로줄 부와 교차되게 형성된 세로줄 부를 포함하며,The forming portion includes a horizontal line portion formed in the roll forming direction, and a vertical line portion formed to cross the horizontal line portion, 상기 가로줄 부는 상기 세로줄 부 보다 그 높이가 낮은 것을 특징으로 하는 회전조 바디.The horizontal row portion is a rotating tub body, characterized in that its height is lower than the vertical row portion.
KR1020070062331A 2007-06-25 2007-06-25 Drum type washing machine KR101392423B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101845739A (en) * 2009-03-23 2010-09-29 海尔集团公司 Inner drum of washing machine with high-efficient washing and dehydration structure
CN105063962A (en) * 2015-08-05 2015-11-18 合肥美的洗衣机有限公司 Washing machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3690110B1 (en) 2019-02-01 2021-06-02 LG Electronics Inc. Laundry treating apparatus
KR20200096049A (en) 2019-02-01 2020-08-11 엘지전자 주식회사 Laundry treating apparatus

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Publication number Priority date Publication date Assignee Title
EP1118704B1 (en) 1996-11-02 2003-07-02 Miele & Cie. GmbH & Co. Drum washing machine
JP2004321304A (en) 2003-04-22 2004-11-18 Tosei Denki Kk Washing, spin-drying and drying apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101845739A (en) * 2009-03-23 2010-09-29 海尔集团公司 Inner drum of washing machine with high-efficient washing and dehydration structure
CN101845739B (en) * 2009-03-23 2013-08-07 海尔集团公司 Inner drum of washing machine with high-efficient washing and dehydration structure
CN105063962A (en) * 2015-08-05 2015-11-18 合肥美的洗衣机有限公司 Washing machine

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