KR101267339B1 - Hinge device of door for washing machine - Google Patents

Hinge device of door for washing machine Download PDF

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Publication number
KR101267339B1
KR101267339B1 KR1020120017844A KR20120017844A KR101267339B1 KR 101267339 B1 KR101267339 B1 KR 101267339B1 KR 1020120017844 A KR1020120017844 A KR 1020120017844A KR 20120017844 A KR20120017844 A KR 20120017844A KR 101267339 B1 KR101267339 B1 KR 101267339B1
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KR
South Korea
Prior art keywords
door
housing
washing machine
cam
opened
Prior art date
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KR1020120017844A
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Korean (ko)
Inventor
변용근
Original Assignee
주식회사 이피텍
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Priority to KR1020120017844A priority Critical patent/KR101267339B1/en
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Publication of KR101267339B1 publication Critical patent/KR101267339B1/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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/10—Doors; Securing means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/28—Doors; Security means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/312—Application of doors, windows, wings or fittings thereof for domestic appliances for washing machines or laundry dryers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • 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

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

Abstract

PURPOSE: A hinge apparatus of a door for washing machine is provided to improve the stability of a product and the operation reliability by making the door to be closed slowly and smoothly and opened easily. CONSTITUTION: A front side of a housing(10) is opened. Inside the housing, a cylinder for storing the fluid is formed. A flange(11) is formed on a side of the housing to fix one side of a door opened/closed in an upper part of a washing machine. A cover(12) which forms a penetration hole in the front of the opened cylinder is closely combined and a guide groove(a) is formed in the cylinder inner circumferential surface in a shaft direction. A shock-absorbing slider(20) elastically supports a rear surface on springs(21,22) which are mounted inside the housing, a rubber ring(23) for sealing is combined in the outer periphery and a fluid path(b) is penetrated in a front and back axis direction. An operating cam(30) forms a protrusion(31) in the outer periphery in which moves straightly in the axis direction along the guide groove of the housing, forms a plurality of cams protruded to front along a circular perimeter in the front, and closely attaches the front side of the shock-absorbing slider to the back side. A fixed cam(40) forms the cams connected to the cam of the operating cam to be able to slide to be protruded backward along a rear surface circular perimeter and forms a key groove(c) in the front side. A hinge shaft(50) inserts a back end to the key groove of the fixed cam. A front end penetrates a penetration hole of the cover and is fixed to one upper side of the washing machine in which the door is attached.

Description

세탁기 도어의 힌지장치{HINGE DEVICE OF DOOR FOR WASHING MACHINE}Hinge DEVICE OF DOOR FOR WASHING MACHINE

본 발명은 세탁기 도어를 본체에 회전 가능하게 연결하는 힌지장치에 관한 것으로, 보다 상세하게는 도어를 닫을 때는 부드럽게 천천히 닫히도록 하고 도어를 열 때는 쉽게 열리도록 하여 제품의 안정성 및 작동 신뢰성이 향상되도록 한 세탁기 도어의 힌지장치에 관한 것이다.The present invention relates to a hinge device for rotatably connecting the washing machine door to the main body, and more particularly, to close the door gently and slowly, and to open easily when opening the door to improve the stability and operation reliability of the product. The hinge device of the washing machine door.

도 1 내지 도 3은 본원이 특허출원 제10-2010-50281호로 선출원한 세탁기용 도어의 힌지장치를 도시한 것으로서, 세탁기 본체에 고정시킬 수 있도록 고정부(1)가 형성된 하우징(2)과, 하우징(2)의 내부에 삽입되어 있는 제1스프링(3)과, 제1스프링(3)의 가운데에 위치되도록 삽입된 제2스프링(4)과, 제1, 2스프링(3, 4)의 상부에 위치되도록 하우징(2)에 삽입됨과 아울러 하우징(2)과의 사이에 형성된 승강수단에 의해 승강 운동하도록 형성되고 상부에 제1캠(5)이 형성된 하부캠(6)과, 하부캠(6)의 제1캠(5)과 맞물리도록 하부에 제2캠(7)이 형성되어 회전 시 하부캠(6)이 승강 운동하도록 하는 상부캠(8)과, 상부캠(8)과 연동하도록 결합수단에 의해 결합되고 외부로 노출되어 세탁기의 상부커버와 연결되는 힌지축(9)과, 힌지축(9)을 하우징(2)에 수납시키도록 하우징(2)에 고정설치되는 커버(10)로 이루어져 있다.1 to 3 illustrate a hinge device for a door for a washing machine, the application of which is filed with the patent application No. 10-2010-50281, the housing 2 in which the fixing part 1 is formed to be fixed to the washing machine body, and Of the first spring 3 inserted into the housing 2, the second spring 4 inserted into the center of the first spring 3, and the first and second springs 3 and 4. The lower cam 6 and the lower cam, which are inserted into the housing 2 so as to be positioned in the upper part, and are moved up and down by the lifting means formed between the housing 2 and the first cam 5 are formed on the upper part. The second cam 7 is formed in the lower portion to be engaged with the first cam 5 of 6) so that the upper cam 8 and the upper cam 8 move upward and downward during rotation. The hinge shaft 9 coupled by the coupling means and exposed to the outside and connected to the upper cover of the washing machine, and the hinge shaft 9 is fixed to the housing 2 to accommodate the housing 2. It consists of a cover 10 to be installed.

상기 승강수단은 하우징(2)의 내측면에 하나 이상 형성된 수직홈(11)과, 상기한 수직홈(11)에 삽입되어 하부캠(6)이 승강 가능하면서 회전하지 않도록 하부캠(6)에 형성된 수직돌기(12)로 이루어져 있다.The elevating means is inserted into the vertical groove 11 and one or more vertical grooves 11 formed on the inner surface of the housing 2, the lower cam 6 is lowered to the lower cam 6 so that the lower cam 6 can be raised and lowered. It consists of a vertical projection (12) formed.

즉, 상부캠(8)에 의해 하부캠(6)이 밀리게 되면 하부캠(6)이 수직홈(11) 및 수직돌기(12)를 타고 승강 운동하도록 구성된 것이다.That is, when the lower cam 6 is pushed by the upper cam 8, the lower cam 6 is configured to move up and down on the vertical groove 11 and the vertical protrusion 12.

또한, 상기 결합수단은 상부캠(8)의 상면 중심에 형성된 각형의 결합돌기(13)와, 결합돌기(13)와 결합되도록 힌지축(9)의 저면에 형성된 결합홈(14)으로 이루어져 있는바, 결합돌기(13)와 결합홈(14)에 의해 동력이 전달되는 것이다.In addition, the coupling means is composed of a rectangular coupling protrusion 13 formed in the center of the upper surface of the upper cam (8), the coupling groove 14 formed on the bottom surface of the hinge shaft (9) to be coupled to the coupling protrusion (13). Bar, the coupling projection 13 and the coupling groove 14 is to transmit power.

특히, 상부캠(8)에 형성된 하나 이상의 보조돌기(15)와, 보조돌기(15)가 끼워지도록 힌지축(9)에 형성된 보조홈(16)이 형성되어 상부캠(8)과 힌지축(9)의 결합력이 더욱더 견고해지고, 회전시 하중이 분산되도록 된다.In particular, one or more auxiliary protrusions 15 formed on the upper cam 8 and the auxiliary grooves 16 formed on the hinge shaft 9 are formed so that the auxiliary protrusions 15 are fitted to the upper cam 8 and the hinge shafts ( The coupling force of 9) becomes more firm and the load is distributed during rotation.

그러나 상기와 같이 이루어지는 종래 세탁기 도어의 힌지장치는 도어의 회전시 스프링의 탄발력에 의해 하중을 분산시켜 도어가 천천히 닫히도록 하였으나 스프링의 탄발력이 불안정하여 도어의 닫히는 속도가 일정하지 않을 뿐 아니라 도어의 반복 작동에 의해 스프링의 탄발력이 저하되어 도어의 개폐가 원활히 이루어지지 않는 문제점이 있었다.However, the hinge device of the conventional washing machine door made as described above distributes the load by the spring force when the door rotates so that the door is closed slowly, but the closing speed of the door is not constant because the spring force is unstable. Due to the repetitive operation of the spring elasticity is reduced, there was a problem that the opening and closing of the door is not made smoothly.

따라서, 본 발명의 목적은 상기한 문제점을 해결하기 위한 것으로서, 스프링의 탄발력과 완충 슬라이더의 댐핑 작용에 의해 세탁기 도어가 열릴 때는 쉽게 열리고, 도어가 닫힐 때는 부드럽게 천천히 닫히도록 하여 소음이 방지되고 제품의 안정성 및 작동 신뢰성이 향상되도록 한 세탁기 도어의 힌지장치를 제공함에 있다.Accordingly, an object of the present invention is to solve the above problems, by the spring's elasticity and the damping action of the buffer slider to open easily when the washing machine door is opened, to close the door gently gently when the door is closed to prevent noise and products The hinge and the washing machine door to improve the stability and operation reliability of the.

상기한 목적을 실현하기 위하여 본 발명은 전방이 개방되고 유체가 저장되는 실린더로 형성되고, 세탁기의 상부에 개폐되는 도어 일측에 고정되며, 개방된 실린더 전방에 관통구멍이 형성되는 커버가 기밀하게 결합되고, 실린더 내주면에 안내 홈이 축 방향으로 형성되는 하우징과; 하우징의 내부에 장착되는 스프링에 후면이 탄지되도록 되고, 외주면에 기밀용 고무링이 결합되며, 유로가 전후 축 방향으로 관통되는 완충 슬라이더와; 하우징의 안내 홈을 따라 이동이 제어되도록 하는 돌기가 외주면에 형성되고, 전면에 원둘레를 따라 전방으로 돌출되는 복수 개의 캠이 형성되며, 완충 슬라이더의 전면에 후면이 밀착되는 작동캠과; 작동캠의 캠에 미끄럼 가능하게 접촉되는 캠들이 후면 원둘레를 따라 후방으로 돌출되게 형성되는 고정캠과; 고정캠에 후단부가 삽입되고, 선단부가 커버의 관통구멍을 관통하여 도어가 부착되는 세탁기의 상부 일측에 고정되는 힌지축으로 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention is formed of a cylinder in which the front is opened and the fluid is stored, is fixed to one side of the door to be opened and closed at the top of the washing machine, the cover is formed in the through-hole in the front of the open cylinder is hermetically coupled A housing in which the guide groove is formed in the axial direction on the inner circumferential surface of the cylinder; A cushioning slider having a rear surface being supported by a spring mounted inside the housing, having an airtight rubber ring coupled to an outer circumferential surface thereof, and having a flow passage penetrating in the front and rear axial directions; An actuating cam formed on an outer circumferential surface thereof to control movement along the guide groove of the housing, a plurality of cams protruding forward along a circumference at a front surface thereof, and an actuating cam closely contacting a rear surface of the buffer slider; A fixed cam formed to protrude rearwardly along the rear circumference of the cams slidably contacting the cams of the operation cams; The rear end portion is inserted into the fixed cam, the front end portion is characterized in that the hinge shaft is fixed to the upper side of the washing machine to which the door is attached through the through hole of the cover.

이러한 본 발명은 스프링의 탄발력과 완충 슬라이더의 댐핑 작용에 의해 도어와 함께 회전하는 힌지장치에 억제력이 작용하여 세탁기 도어가 열릴 때는 쉽게 열리고, 도어가 닫힐 때는 부드럽게 천천히 닫히도록 하여 제품의 안정성 및 작동 신뢰성이 향상되는 이점이 있다.The present invention is a damping force of the spring and the damping action of the damping slider to act as a restraining force to the hinge device that rotates with the door to be opened easily when the washing machine door is opened, gently closed slowly when the door is closed, the stability and operation of the product There is an advantage that the reliability is improved.

도 1은 종래 세탁기 도어의 힌지장치를 나타내는 분해 사시도
도 2는 종래 세탁기 도어의 힌지장치를 나타내는 단면도
도 3은 종래 세탁기 도어의 힌지축의 배면 사시도
도 4는 본 발명 세탁기 도어의 힌지장치를 나타내는 분해 사시도
도 5는 본 발명 세탁기 도어의 힌지장치를 나타내는 사시도
도 6은 본 발명 세탁기 도어의 열린 상태를 나타내는 힌지장치 단면도
도 7은 본 발명 세탁기 도어의 닫힌 상태를 나타내는 힌지장치 단면도
도 8은 본 발명의 완충 슬라이더를 나타내는 사시도
도 9는 본 발명의 완충 슬라이더를 나타내는 단면도
도 10은 본 발명이 적용된 세탁기를 나타내는 사시도1 is an exploded perspective view showing a hinge device of a conventional washing machine door
2 is a cross-sectional view showing a hinge device of a conventional washing machine door.
3 is a rear perspective view of the hinge shaft of a conventional washing machine door;
Figure 4 is an exploded perspective view showing a hinge device of the washing machine door of the present invention
5 is a perspective view showing a hinge device of the washing machine door of the present invention;
Figure 6 is a hinge cross-sectional view showing an open state of the washing machine door of the present invention.
Figure 7 is a hinge cross-sectional view showing a closed state of the washing machine door of the present invention
Figure 8 is a perspective view of the buffer slider of the present invention
9 is a cross-sectional view showing a buffer slider of the present invention.
10 is a perspective view showing a washing machine to which the present invention is applied.

본 발명은 도 4 내지 도 10에 도시되는 바와 같이, 전방이 개방되고 내부에 유체가 저장되는 실린더로 형성되고, 세탁기(1)의 개방부 상부에 개폐되는 도어(2) 일측에 고정되도록 플랜지(11)가 측면에 형성되며, 개방된 실린더 전방에 관통구멍이 형성되는 커버(12)가 기밀하게 결합되고, 실린더 내주면에 안내 홈(a)이 축 방향으로 형성되는 하우징(10)과; 하우징(10)의 내부에 장착되는 스프링(21,22)에 후면이 탄지되도록 되고, 외주면에 기밀용 고무링(23)이 결합되며, 유로(b)가 전후 축 방향으로 관통되는 완충 슬라이더(20)와; 하우징(10)의 안내 홈(a)을 따라 축 방향으로 직선 운동하도록 하는 돌기(31)가 외주면에 형성되고, 전면에 원둘레를 따라 전방으로 돌출되는 복수 개의 캠이 형성되며, 완충 슬라이더(20)의 전면에 후면이 밀착되는 작동캠(30)과; 작동캠(30)의 캠에 미끄럼 가능하게 접촉되는 캠들이 후면 원둘레를 따라 후방으로 돌출되게 형성되고, 전면에 키홈(c)이 형성되는 고정캠(40)과; 고정캠(40)의 키홈(c)에 후단부가 삽입되고, 선단부가 커버(12)의 관통구멍을 관통하여 도어(2)가 부착되는 세탁기(1)의 상부 일측에 고정되는 힌지축(50)으로 이루어지는 것을 그 기술적 구성상의 기본 특징으로 한다. 4 to 10, the front is opened and formed into a cylinder in which the fluid is stored therein, the flange (to be fixed to one side of the door 2, which is opened and closed on top of the opening of the washing machine 1) A housing (10) having a side surface (11) formed in the side, and a cover (12) having a through hole formed in front of the open cylinder in an airtight manner, and a guide groove (a) formed in the axial direction on the inner circumferential surface of the cylinder; The rear surface is supported by the springs 21 and 22 mounted inside the housing 10, the airtight rubber ring 23 is coupled to the outer circumferential surface, and the buffer slider 20 through which the flow path b penetrates in the front and rear axial directions. )Wow; A projection 31 for linearly moving in the axial direction along the guide groove a of the housing 10 is formed on the outer circumferential surface, and a plurality of cams protruding forward along the circumference is formed on the front surface thereof, and the buffer slider 20 is formed. An operation cam 30 in close contact with the front of the front; A fixed cam 40 which is formed to protrude rearwards along the rear circumference of the cams slidably contacting the cam of the operation cam 30 and has a key groove c formed on the front surface thereof; Hinge shaft 50 is fixed to the upper side of the washing machine 1, the rear end is inserted into the key groove (c) of the fixed cam 40, the front end is penetrated through the through hole of the cover 12, the door 2 is attached It consists of the basic features on the technical configuration.

이와 같이 구성되는 본 발명은 힌지축(50)과 고정캠(40)이 세탁기(1)에 고정된 상태로 있어, 도어(2)를 열거나 닫으면, 하우징(10)과 함께 작동캠(30)이 상대적으로 회전 운동을 하게 된다.According to the present invention constituted as described above, the hinge shaft 50 and the fixed cam 40 are fixed to the washing machine 1, and when the door 2 is opened or closed, the operation cam 30 together with the housing 10 is provided. This is a relatively rotational motion.

작동캠(30)은 하우징(10)과 함께 회전 이동할 때 전면의 캠이 고정캠(40)의 캠 곡선을 따라 미끄러지게 되는데, 캠이 상사점을 향할 때 하우징(10)의 안내 홈(a)을 따라 후방으로 이동하게 되어 접해 있는 완충 슬라이더(20)가 스프링(21,22)과 유체를 가압하며 함께 후방으로 이동하게 되며, 캠이 하사점을 향할 때 압축되었던 스프링(21,22)의 탄발력에 의해 완충 슬라이더(20)와 함께 전방으로 이동하게 된다.When the operation cam 30 rotates with the housing 10, the front cam slides along the cam curve of the fixed cam 40, and the guide groove a of the housing 10 when the cam faces the top dead center. The shock absorbing slider 20, which is in contact with the rear side, moves backward along with the springs 21 and 22, and presses the fluid, and the shot of the springs 21 and 22 that were compressed when the cam is directed toward the bottom dead center. The force moves forward with the buffer slider 20.

완충 슬라이더(20)가 후방으로 이동할 때 실린더 후방 공간에 있던 유체는 완충 슬라이더(20)에 형성된 유로(b)들을 통해 전방으로 이동하게 되는데, 실린더의 단위 체적보다 단위 체적이 적은 유로(b)를 통과하므로 저항이 증가하게 된다.When the buffer slider 20 moves rearward, the fluid in the cylinder rear space moves forward through the flow paths b formed in the buffer slider 20. The flow path b having a unit volume smaller than the unit volume of the cylinder is moved. As it passes, the resistance increases.

즉, 스프링(21,22)의 반발력과 유체 유동에 따른 유체 저항으로 말미암아 하우징(10)의 회전이 느려져 함께 회전하는 도어(2)가 세탁기(1) 드럼의 개방부에 천천히 닫히게 된다.That is, the rotation of the housing 10 is slowed by the repulsive force of the springs 21 and 22 and the fluid resistance according to the fluid flow, so that the door 2 which rotates together is slowly closed to the opening of the drum of the washing machine 1.

한편, 세탁기(1)의 도어(2)를 열면, 즉 하우징(10)을 반대 방향으로 회전시키면, 압축되었던 스프링(21,22)의 복원력이 완충 슬라이더(20)를 통해 작동캠(30)에 작용하므로 도어(2)가 쉽게 열리게 된다.On the other hand, when the door 2 of the washing machine 1 is opened, that is, when the housing 10 is rotated in the opposite direction, the restoring force of the compressed springs 21 and 22 is transmitted to the operation cam 30 through the buffer slider 20. The door 2 is easily opened.

여기에서, 하우징(10)은 전면부에 나사 체결구멍들이 형성되어 커버(12)가 상기 나사 체결구멍에 체결되는 고정나사(13)들에 의해 결합되며, 커버(12)는 후면에 관통구멍 동심원상으로 원통 연장부가 형성되고 원통 연장부 외주면에 요홈이 형성되어 내주면으로 힌지축(50)이 관통되고, 원통 연장부 외주면 요홈에 고무링(14)이 끼워진다.Here, the housing 10 is coupled by fixing screws 13 formed with screw fastening holes in the front part and the cover 12 is fastened to the screw fastening hole, and the cover 12 is concentric with a through hole in the rear surface. A cylindrical extension is formed on the upper surface, and a groove is formed on the outer circumferential surface of the cylindrical extension, the hinge shaft 50 penetrates through the inner circumferential surface, and the rubber ring 14 is fitted into the outer circumferential surface of the cylindrical extension portion.

완충 슬라이더(20)는 하우징(10)의 실린더 내부에서 축 방향으로 이동 가능하도록 원통형으로 형성되고, 선단부 외주면에 안내 돌기(d)들이 형성되어 안내 돌기(d)들이 하우징(10)의 실린더 내주면에 형성된 안내 홈(a)을 따라 축 방향으로 미끄럼 이동하도록 되고, 후단부 외주면에 요홈이 형성되고 상기 요홈에 기밀용 고무링(23)이 끼워져 이동 중에도 실린더 내벽 사이에 기밀을 유지하도록 되며, 전면에서 후면으로 관통되고 후방으로 가면서 점차 내경이 크게 되는 유로(b)가 복수 개 형성된다. The buffer slider 20 is formed in a cylindrical shape to move in the axial direction in the cylinder of the housing 10, guide protrusions (d) are formed on the outer peripheral surface of the tip portion so that the guide protrusions (d) on the cylinder inner circumferential surface of the housing (10) It is to slide in the axial direction along the guide groove (a) formed, the groove is formed in the outer peripheral surface of the rear end and the airtight rubber ring 23 is fitted in the groove to maintain the airtight between the cylinder inner wall during the movement, from the front A plurality of flow paths (b) passing through the rear surface and gradually increasing inwardly are formed.

완충 슬라이더(20)의 후면에 탄력적으로 밀착되는 스프링(21,22)은 직경이 큰 코일스프링(21) 안쪽에 직경이 비교적 작은 코일스프링(22)이 장착되는 2중 압축스프링 구조로 된다.The springs 21 and 22 that are elastically in close contact with the rear surface of the buffer slider 20 have a double compression spring structure in which a coil spring 22 having a relatively small diameter is mounted inside the coil spring 21 having a large diameter.

이러한 완충 슬라이더(20)는 하우징(10)의 실린더 내부 공간을 전후로 나누고 유로(b)를 통해 실린더 전후 공간이 통하도록 되어, 실린더의 전후 축 방향으로 이동하면 비교적 단위 체적이 적은 유로(b)로 유체가 이동하므로 인해 저항이 커져 이동이 억제되게 된다.The buffer slider 20 divides the inner space of the cylinder of the housing 10 back and forth, and the front and rear space of the cylinder passes through the flow path b, and moves to a flow path b having a relatively small unit volume when moved in the front and rear axial direction of the cylinder. As the fluid moves, the resistance increases and the movement is suppressed.

즉 하우징(10)과 함께 회전 이동하는 도어(2)의 개폐가 완충 슬라이더(20)의 댐핑 작용으로 부드럽게 열리고 닫히게 된다.That is, opening and closing of the door 2 which rotates with the housing 10 is smoothly opened and closed by the damping action of the buffer slider 20.

1 : 세탁기 2 : 도어
10 : 하우징 11 : 플랜지
12 : 커버 13 : 고정나사
14, 23 : 고무링 20 : 완충 슬라이더
21,22 : 스프링 30 : 작동캠
31 : 돌기 40 : 고정캠
50 : 힌지축1: washing machine 2: door
10 housing 11 flange
12 cover 13 fixing screw
14, 23: rubber ring 20: buffer slider
21,22: Spring 30: Operation Cam
31: projection 40: fixed cam
50: hinge axis

Claims (1)

전방이 개방되고 유체가 저장되는 실린더로 형성되고, 세탁기(1)의 상부에 개폐되는 도어(2) 일측에 고정되며, 개방된 실린더 전방에 관통구멍이 형성되는 커버(12)가 기밀하게 결합되고, 실린더 내주면에 안내 홈(a)이 축 방향으로 형성되는 하우징(10)과; 하우징(10)의 내부에 장착되는 스프링에 후면이 탄지되도록 되고, 외주면에 기밀용 고무링(23)이 결합되며, 유로(b)가 전후 축 방향으로 관통되는 완충 슬라이더(20)와; 하우징(10)의 안내 홈(a)을 따라 이동이 제어되도록 하는 돌기(31)가 외주면에 형성되고, 전면에 원둘레를 따라 전방으로 돌출되는 복수 개의 캠이 형성되며, 완충 슬라이더(20)의 전면에 후면이 밀착되는 작동캠(30)과; 작동캠(30)의 캠에 미끄럼 가능하게 접촉되는 캠들이 후면 원둘레를 따라 후방으로 돌출되게 형성되는 고정캠(40)과; 고정캠(40)에 후단부가 삽입되고, 선단부가 커버(12)의 관통구멍을 관통하여 도어(2)가 부착되는 세탁기(1)의 상부 일측에 고정되는 힌지축(50)으로 이루어지는 것을 특징으로 하는 세탁기 도어의 힌지장치.The front is opened and formed into a cylinder in which the fluid is stored, is fixed to one side of the door 2 to be opened and closed at the top of the washing machine 1, the cover 12 is formed in the through-hole in front of the open cylinder is hermetically coupled A housing 10 having a guide groove a formed in the axial direction on an inner circumferential surface of the cylinder; A cushioning slider 20 in which a rear surface is supported by a spring mounted inside the housing 10, an airtight rubber ring 23 is coupled to an outer circumferential surface thereof, and the flow path b penetrates in the front and rear axial directions; A protrusion 31 for controlling movement along the guide groove a of the housing 10 is formed on the outer circumferential surface thereof, and a plurality of cams protruding forward along the circumference is formed on the front surface thereof, and the front surface of the buffer slider 20 is provided. An operation cam 30 in close contact with the back; A fixed cam 40 formed to protrude rearwardly along the rear circumference of the cams slidably contacting the cams of the operation cam 30; The rear end portion is inserted into the fixed cam 40, the front end portion of the hinge shaft 50 is fixed to the upper side of the washing machine 1 to which the door 2 is attached by passing through the through hole of the cover 12 Hinge of the washing machine door.
KR1020120017844A 2012-02-22 2012-02-22 Hinge device of door for washing machine KR101267339B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101654916B1 (en) * 2016-03-15 2016-09-06 주식회사 이피텍 Device of door hinge for washing machine
KR101691149B1 (en) * 2016-10-27 2016-12-29 주식회사 이피텍 Device of door hinge for washing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101654916B1 (en) * 2016-03-15 2016-09-06 주식회사 이피텍 Device of door hinge for washing machine
KR101691149B1 (en) * 2016-10-27 2016-12-29 주식회사 이피텍 Device of door hinge for washing machine
WO2018080134A1 (en) * 2016-10-27 2018-05-03 주식회사 이피텍 Hinge device for washing machine door
US20200063327A1 (en) * 2016-10-27 2020-02-27 Eptech Co., Ltd. Hinge device for washing machine door
US10941600B2 (en) 2016-10-27 2021-03-09 Eptech Co., Ltd. Hinge device for washing machine door

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