WO2012036390A2 - 세탁기 - Google Patents
세탁기 Download PDFInfo
- Publication number
- WO2012036390A2 WO2012036390A2 PCT/KR2011/006289 KR2011006289W WO2012036390A2 WO 2012036390 A2 WO2012036390 A2 WO 2012036390A2 KR 2011006289 W KR2011006289 W KR 2011006289W WO 2012036390 A2 WO2012036390 A2 WO 2012036390A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- friction member
- outer tub
- washing machine
- air cap
- friction
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
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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
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
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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
- D06F37/26—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
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- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/02—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs damping by frictional contact between the spring and braking means
Definitions
- the present invention relates to a washing machine, and more particularly, to a washing machine capable of effectively attenuating vibrations generated during operation of the washing machine.
- a washing machine is an apparatus for washing laundry by emulsifying the detergent, water flow generated by the rotation of the washing tank or the washing blade, and impact action applied by the washing blade.
- washing, rinsing, and / or dehydration processes are performed to remove the contamination on the fabric.
- a conventional washing machine includes a casing forming the exterior of a washing machine, an outer tub accommodated in a form suspended in the casing, and an inner tub rotatably provided in the outer tub.
- the washing machine further includes a suspension for attenuating the outer tub when the inner tub and / or pulsator rotates.
- the suspension is implemented as a structure for damping the vibration generated from the outer tank by using the spring elasticity / restoring force, the viscous force of the fluid.
- such suspension can effectively attenuate the vibration in the steady state where the outer shell vibrates within a certain amplitude range, but there is a limit to attenuate the vibration in the transient vibration state that vibrates with a larger amplitude than the normal vibration state.
- the vibration damping effect is reduced in the normal vibration state with a relatively small amplitude when the general suspension is designed to be optimized for the transient vibration state with a large amplitude.
- vibration damping effects cannot be expected. Therefore, it is necessary to devise a method capable of effectively attenuating vibration in either the normal vibration state or the transient vibration state.
- the problem to be solved by the present invention is first, to provide a washing machine that can effectively attenuate vibration even if the vibration width of the outer shell is changed.
- Washing machine of the present invention is a casing to form an appearance; A support rod having one end connected to the casing; And a suspension that connects the other end of the support rod to the outer tub so that the outer tub is suspended in the casing, and cushions vibration of the outer tub, and the suspension penetrates the other end of the supporting rod and is mounted on an outer periphery of the outer tub.
- the washing machine of the present invention includes a casing forming an appearance; A support rod having one end connected to the casing; An air cap penetrating the other end of the support rod and mounted on an outer circumference of the outer tub to move along the supporting rod during vibration of the outer tub; A first friction member moving relative to the inner surface of the air cap when the vibration width of the outer tub is less than or equal to a predetermined size; And a second friction member that slides along the support bar when the vibration width of the outer tub is equal to or greater than the predetermined size.
- the damping force acts differently according to the vibration width of the outer tub, thereby effectively damping the vibration of the outer tub.
- the washing machine of the present invention can effectively attenuate the vibration of the outer tank not only in the normal vibration state in which the vibration width of the outer tank is within a predetermined range, but also in the transient vibration state in which the outer vibration band is relatively large.
- the washing machine of the present invention can reduce the distance between the outer tub and the inner surface of the casing in consideration of the vibration of the outer tub, there is an advantage in the large capacity of the outer tub without increasing the size of the casing.
- the washing machine of the present invention effectively attenuates the vibration of the outer tub, thereby improving durability and stability and reducing noise.
- FIG. 1 is a side cross-sectional view cut away to reveal the main configuration of a washing machine according to an embodiment of the present invention.
- FIG. 2 is a partial perspective view illustrating a structure in which a suspension is mounted on the outer tub illustrated in FIG. 1.
- FIG. 3 is an enlarged view illustrating a portion A enlarged in FIG. 2.
- FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3.
- FIG. 5 is a cross-sectional view taken along the line C-C shown in FIG. 4.
- FIG. 6 illustrates a process in which the suspension shown in FIGS. 1 to 4 operates in order when the downward displacement of the outer tank gradually increases.
- FIG. 7 illustrates a sequence of operations of the suspensions shown in FIGS. 1 to 4 when the upward displacement of the outer tank gradually increases.
- FIG. 1 is a side cross-sectional view cut away to reveal the main configuration of a washing machine according to an embodiment of the present invention.
- FIG. 2 is a partial perspective view illustrating a structure in which a suspension is mounted on the outer tub illustrated in FIG. 1.
- FIG. 3 is an enlarged view illustrating a portion A enlarged in FIG. 2.
- 4 is a cross-sectional view taken along line B-B of FIG. 3.
- 5 is a cross-sectional view taken along the line C-C shown in FIG. 4.
- a washing machine displays a casing 1 for forming an appearance, operation keys for receiving various control commands from a user, and information on an operating state of the washing machine.
- a control panel 11 including a display to provide a user interface, and a door 7 rotatably provided in the casing 1 to open and close an entrance hall (not shown) through which laundry is entered.
- the outer tub 2 in which the washing water is contained is provided in the form of being suspended in the casing 1 by the supporting rod 15, and the outer tub 2 is rotatably provided with an inner tub 3 for accommodating the laundry.
- the pulsator 4 is rotatably provided at the bottom of 3).
- the inner tank 3 is provided with a plurality of holes through which washing water passes.
- the casing defined in the present invention is sufficient to form the appearance of the washing machine, but in particular, a rigid body fixed without moving so that one end of the supporting rod 15 which suspends the outer tub 2 in the casing can be fixed by the casing. , rigid body).
- the casing 1 mentioned below is merely an example of a configuration for forming the appearance of the washing machine, and the scope of the casing described in the claims of the present application is not necessarily limited thereto.
- the casing 1 includes a main body 12 having an upper side opened, and a top cover 14 provided at an upper side of the main body 12 and having an entrance hole through which laundry enters and exits.
- One end of the support rod 15 may be fixed to either the main body 12 or the top cover 14, and a support means (not shown) for pivoting the support rod 15 when the outer tub 2 vibrates. This may be further provided.
- the suspension 30 connects the supporting rod 15 and the outer tub 2 and attenuates the vibration of the outer tub 2 generated during the washing machine operation.
- the suspension 30 has an air cap 31 which is inserted into the support rod 15 and the air cap 31 interlocked with the outer tub 2 and fixed to the outer circumferential lower portion of the outer tub 2 through the other end of the supporting rod 15.
- the friction damping part 35 disposed in the 31 to damp the vibration of the outer tub 2 by the frictional force generated in the relationship with at least one of the air cap 31 and the supporting rod 15 as the outer tub 2 vibrates. It includes.
- the friction damping part 35 includes a first friction member 32 in contact with the inner surface of the air cap 31 and a second friction member 33 in contact with the support rod 15, wherein the second friction The magnitude of the frictional force acting between the member 33 and the support rod 15 is greater than the magnitude of the frictional force acting between the first friction member 32 and the inner surface of the air cap 31.
- the friction damping unit 35 is inserted into the support rod 15 and disposed in the air cap 31, and the friction member accommodating part 34 accommodates the first friction member 32 and the second friction member 33. It may further include, as shown in Figure 5, the inner side of the friction member receiving portion 34, the second friction member 33 in contact with the support bar 15 is accommodated, the outer air cap 31 The first friction member 32 in contact with the inner side of the housing is accommodated.
- the compression ratios of the first friction member 32 and the second friction member 33 are different from each other.
- the compression ratio of the second friction member 33 is greater than that of the first friction member 32. do.
- the first friction member 32 and the second friction member 33 are made of the same material, the second friction member that is relatively more compressed than the first friction member 32 inside the friction member receiving portion 34.
- Accept 33 at least one of the first friction member 32 and the second friction member may be formed of a fiber structure such as felt.
- the first friction member 32 and the second friction member 33 are formed of felt of the same material, the second friction member 33 is compressed at a compression rate of approximately 30%, and the first friction member
- the reference numeral 32 denotes a frictional force acting between the first friction member 32 and the inner surface of the air cap 31 in a steady state in which the outer shell 2 vibrates with an amplitude of a predetermined size or less under the condition of no compression (hereinafter, Friction force acting between the second friction member 33 and the support bar 15 in a transient vibration state in which the outer tub 2 vibrates above the predetermined size.
- Friction force acting between the second friction member 33 and the support bar 15 in a transient vibration state in which the outer tub 2 vibrates above the predetermined size.
- Sliding oil may be applied to the first friction member 32 so that the first friction member 32 is not worn by the friction acting on the inner surface of the air cap 31 or is fused by frictional heat.
- the sliding oil is a fluid that is used to smooth the operation of the sliding surface contact mechanisms, which is a concept that is distinct from the lubricant, the lubricant is a sprocket or gear While viscous and adhesive force is good for long-term use on the rotating body, the sliding oil is less viscous than lubricating oil, because the viscous oil will interfere with the operation of the mechanism if used too thinly.
- first friction member 32 and the second friction member 33 are made of different materials.
- the second friction member 33 may be made of a material having better adhesion than the first friction member 32.
- the comparison of the close contact force compares the force of the first friction member 32 in close contact with the inner surface of the air cap 31 and the force of the second friction member 33 in close contact with the outer circumference of the support bar 15.
- the second friction member 33 is also made of a material having a lower adhesion than the first friction member 32 It is possible.
- the suspension 30 may further include an elastic member, and the elastic member is compressed when the downward displacement of the air cap 31 increases as the outer tub 2 vibrates.
- the increase in the displacement of the air cap 31 in the downward direction is a case in which the outer tub 2 moves in the same direction substantially as the gravity direction, gravity as well as the impact force caused by vibration.
- the outer tank 2 vibrates violently, such as a section in which the rotation speed of the inner tank 3 rapidly increases or a section in which the inner tank 3 rotates at high speed in a state where the fabric is not evenly distributed
- the air cap 31 The downward displacement of the abruptly increases, the elastic member helps to damp the vibration by the elastic deformation is made when the air cap 31 is increased in the downward direction.
- Spring 36 is an example of the elastic member, is inserted into the support bar (15).
- the suspension 30 may further include a base 37 disposed at the other end of the supporting rod 15 to support the spring 36.
- One end of the spring 36 is supported by the base 37 and the other end is constrained by the air cap 31.
- the air cap 31 is moved to the spring 35. ) Is pushed downward, and the spring 36 is compressed.
- the water supply passage 5 is connected to an external water source such as a faucet to supply water into the outer tank (2) and / or the inner tank (3).
- the water supply valve 6 interrupts the water supply passage.
- the drive part 13 drives the inner tank 3 and / or the pulsator 4.
- the drain passage 9 drains the washing water in the outer tub 2.
- the drain valve 8 interrupts the drain passage 9.
- the drain pump 10 pumps the washing water drained to the drain passage 9 to the outside of the washing machine.
- FIG. 6 illustrates a process in which the suspension shown in FIGS. 1 to 4 operates in order when the downward displacement of the outer tank gradually increases. More specifically, (a), (b) and (c) of FIG. 6 show that the displacement of the outer tub 2 in the downward direction of the outer tub 2, that is, substantially in the direction of gravity, while the outer tub 2 vibrates. As it increases, the course of operation of the suspension 30 is shown in turn.
- the air cap 31 further moves downward from FIG. 6B, and the friction damping part 35 is lowered by the air cap 31 when the movement distance of the air cap 31 is greater than or equal to the predetermined distance. It slides along the support rod 15 while pushing in a direction. In this case, vibration attenuation is achieved by the frictional force acting between the second friction member 33 and the support bar 15.
- 6C illustrates a state in which the friction damping unit 35 is pushed downward by the air cap 31.
- FIG. 7 illustrates a sequence of operations of the suspensions shown in FIGS. 1 to 4 when the upward displacement of the outer tank gradually increases. More specifically, (a), (b) and (c) of FIG. 7 show that the outer tub 2 vibrates in an upward direction of the outer tub 2 while vibrating the outer tub 2, that is, substantially in the direction opposite to gravity. When the displacement of is increased, the operation process of the suspension 30 is shown in turn.
- the spring 36 is compressed when the downward displacement of the outer tub 2 is relatively large. At this time, the length of the spring 36 is c1, and the distance from the base 37 to the friction damping portion 35 is d1.
- the friction damping unit 35 may be moved until the movement distance of the air cap 31 reaches a predetermined distance. The position does not change.
- FIG. 7C illustrates a state in which the air cap 31 moves upward from FIG. 7B, and the friction damping unit 35 is supported by the air cap 31. Is sliding upward). In this case, vibration is attenuated by the frictional force acting between the second friction member 33 and the supporting rod 15.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims (15)
- 외관을 형성하는 케이싱;일단이 상기 케이싱과 연결된 지지봉; 및상기 외조가 상기 케이싱 내에 매달리도록 상기 지지봉의 타단과 상기 외조를 연결하고, 상기 외조의 진동을 완충하는 서스펜션을 포함하고,상기 서스펜션은,상기 지지봉의 타단이 관통하고, 상기 외조의 외주에 장착되어 상기 외조의 진동 시 상기 지지봉을 따라 이동하는 에어캡;상기 지지봉에 삽입된 채로 상기 에어캡 내에 배치되며, 상기 에어캡의 내측면과 접촉하는 제 1 마찰부재; 및상기 지지봉과 접촉하도록 배치되고, 상기 지지봉과의 사이에서 상기 제 1 마찰부재와 상기 에어캡의 내측면 사이에 작용하는 마찰력보다 더 큰 마찰력이 작용하도록하는 제 2 마찰부재를 포함하는 세탁기.
- 제 1 항에 있어서,상기 제 1 마찰부재와 제 2 마찰부재는 압축률이 서로 다른 세탁기.
- 제 1 항에 있어서,상기 제 1 마찰부재와 상기 제 2 마찰부재는 동일한 재질로 형성되되, 상기 제 2 마찰부재의 압축률이 상기 제 1 마찰부재의 압축률보다 큰 세탁기.
- 제 1 항에 있어서,상기 제 1 마찰부재와 제 2 마찰부재는 재질이 서로 다른 세탁기.
- 제 4 항에 있어서,상기 제 2 마찰부재는 상기 제 1 마찰부재보다 밀착력이 큰 세탁기.
- 제 1 항에 있어서,상기 제 1 마찰부재 및 제 2 마찰부재 중 적어도 하나는 섬유 구조로 형성된 세탁기.
- 제 6 항에 있어서,상기 제 1 마찰부재 및 제 2 마찰부재 중 적어도 하나에 습동유가 도포된 세탁기.
- 제 1 항에 있어서,상기 지지봉에 삽입되어 상기 에어캡 내에 배치되고, 상기 제 1 마찰부재를 외측에 수용하고 상기 제 2 마찰부재를 내측에 수용하는 마찰부재 수용부를 더 포함하는 세탁기.
- 제 1 항에 있어서,상기 서스펜션은,상기 에어캡의 하측방향 변위가 증가할 시 압축되는 탄성부재를 더 포함하는 세탁기.
- 제 9 항에 있어서,상기 탄성부재는 상기 지지봉에 삽입되는 스프링을 포함하고,상기 서스펜션은,상기 지지봉의 타단에 배치되어 상기 탄성부재를 지지하는 베이스를 더 포함하는 세탁기.
- 외관을 형성하는 케이싱;일단이 상기 케이싱과 연결된 지지봉;상기 지지봉의 타단이 관통하고, 상기 외조의 외주에 장착되어 상기 외조의 진동 시 상기 지지봉을 따라 이동하는 에어캡;상기 외조의 진동폭이 소정 크기 이하일 시, 상기 에어캡의 내측면에 대해 상대운동 하는 제 1 마찰부재; 및상기 외조의 진동폭이 상기 소정 크기 이상일 시, 상기 지지봉을 따라 습동하는 제 2 마찰부재를 포함하는 세탁기.
- 제 11 항에 있어서,상기 제 1 마찰부재와 상기 에어캡의 내주면 사이에 작용하는 마찰력보다 상기 제 2 마찰부재와 상기 지지봉 사이에 작용하는 마찰력이 더 큰 세탁기.
- 제 12 항에 있어서,상기 제 1 마찰부재와 제 2 마찰부재는 압축률이 서로 다른 세탁기.
- 제 11 항에 있어서,상기 제 1 마찰부재와 상기 제 2 마찰부재는 동일한 재질로 형성되되, 상기 제 2 마찰부재의 압축률이 상기 제 1 마찰부재의 압축률보다 큰 세탁기.
- 제 11 항에 있어서,상기 제 2 마찰부재는,상기 외조의 진동폭이 상기 소정 크기 이상일 시, 상기 에어캡에 의해 밀림으로써 상기 지지봉을 따라 습동하는 세탁기.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN201180044573.9A CN103109010B (zh) | 2010-09-17 | 2011-08-25 | 洗衣机 |
US13/823,673 US9127396B2 (en) | 2010-09-17 | 2011-08-25 | Washing machine having a friction suspension |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR20100091944A KR20120029853A (ko) | 2010-09-17 | 2010-09-17 | 세탁기 |
KR10-2010-0091944 | 2010-09-17 |
Publications (3)
Publication Number | Publication Date |
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WO2012036390A2 true WO2012036390A2 (ko) | 2012-03-22 |
WO2012036390A3 WO2012036390A3 (ko) | 2012-05-31 |
WO2012036390A4 WO2012036390A4 (ko) | 2012-08-09 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/KR2011/006289 WO2012036390A2 (ko) | 2010-09-17 | 2011-08-25 | 세탁기 |
Country Status (4)
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US (1) | US9127396B2 (ko) |
KR (1) | KR20120029853A (ko) |
CN (1) | CN103109010B (ko) |
WO (1) | WO2012036390A2 (ko) |
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KR102133190B1 (ko) * | 2013-11-04 | 2020-07-13 | 엘지전자 주식회사 | 세탁기 및 그 제조방법 |
CN106460287B (zh) * | 2014-03-11 | 2019-11-12 | Lg电子株式会社 | 洗涤物处理装置 |
KR102114306B1 (ko) * | 2014-03-11 | 2020-05-22 | 엘지전자 주식회사 | 세탁물 처리기기 |
KR102203431B1 (ko) * | 2014-03-11 | 2021-01-14 | 엘지전자 주식회사 | 세탁물 처리기기 |
KR102203432B1 (ko) * | 2014-03-11 | 2021-01-14 | 엘지전자 주식회사 | 세탁물 처리기기 |
KR102229297B1 (ko) * | 2014-06-11 | 2021-03-17 | 엘지전자 주식회사 | 세탁기 |
KR102217533B1 (ko) * | 2014-07-11 | 2021-02-18 | 엘지전자 주식회사 | 세탁기 |
US9963814B2 (en) | 2014-07-11 | 2018-05-08 | Lg Electronics Inc. | Washing machine |
CN106195089A (zh) * | 2015-04-30 | 2016-12-07 | 青岛海尔洗衣机有限公司 | 一种可变阻尼减震器及洗衣机 |
KR102448507B1 (ko) * | 2015-05-04 | 2022-09-29 | 삼성전자주식회사 | 댐핑 장치 및 이를 포함하는 세탁기 |
CN106120246B (zh) * | 2015-05-04 | 2021-01-26 | 三星电子株式会社 | 阻尼装置和包括该阻尼装置的洗衣机 |
CN106481723B (zh) * | 2015-09-01 | 2020-03-20 | 青岛海尔智能技术研发有限公司 | 用于波轮洗衣机的可调阻尼吊杆及具有其的波轮洗衣机 |
KR101683402B1 (ko) | 2015-12-24 | 2016-12-06 | 엘지전자 주식회사 | 스태빌라이저 및 이를 구비한 세탁물 처리 기기 |
CN109594294B (zh) * | 2017-09-30 | 2022-10-28 | 无锡小天鹅电器有限公司 | 洗衣机的减震器和具有其的洗衣机 |
KR20210028982A (ko) | 2019-09-05 | 2021-03-15 | 엘지전자 주식회사 | 의류처리장치 |
KR20210030111A (ko) * | 2019-09-09 | 2021-03-17 | 엘지전자 주식회사 | 의류처리장치 |
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KR20000007769A (ko) * | 1998-07-07 | 2000-02-07 | 구자홍 | 세탁기의 댐퍼 |
KR20010036614A (ko) * | 1999-10-11 | 2001-05-07 | 구자홍 | 전자동세탁기용 댐퍼의 하측완충구 구조 |
KR20030004712A (ko) * | 2001-07-06 | 2003-01-15 | 주식회사 엘지이아이 | 세탁기의 현가장치 |
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2011
- 2011-08-25 WO PCT/KR2011/006289 patent/WO2012036390A2/ko active Application Filing
- 2011-08-25 CN CN201180044573.9A patent/CN103109010B/zh active Active
- 2011-08-25 US US13/823,673 patent/US9127396B2/en active Active
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KR200159471Y1 (ko) * | 1997-05-20 | 1999-10-15 | 구자홍 | 세탁기의 댐핑장치 |
KR20000007769A (ko) * | 1998-07-07 | 2000-02-07 | 구자홍 | 세탁기의 댐퍼 |
KR20010036614A (ko) * | 1999-10-11 | 2001-05-07 | 구자홍 | 전자동세탁기용 댐퍼의 하측완충구 구조 |
KR20030004712A (ko) * | 2001-07-06 | 2003-01-15 | 주식회사 엘지이아이 | 세탁기의 현가장치 |
Also Published As
Publication number | Publication date |
---|---|
KR20120029853A (ko) | 2012-03-27 |
US20130247622A1 (en) | 2013-09-26 |
CN103109010B (zh) | 2016-01-20 |
WO2012036390A3 (ko) | 2012-05-31 |
CN103109010A (zh) | 2013-05-15 |
WO2012036390A4 (ko) | 2012-08-09 |
US9127396B2 (en) | 2015-09-08 |
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