WO2009151250A2 - Porte coulissante - Google Patents

Porte coulissante Download PDF

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Publication number
WO2009151250A2
WO2009151250A2 PCT/KR2009/003074 KR2009003074W WO2009151250A2 WO 2009151250 A2 WO2009151250 A2 WO 2009151250A2 KR 2009003074 W KR2009003074 W KR 2009003074W WO 2009151250 A2 WO2009151250 A2 WO 2009151250A2
Authority
WO
WIPO (PCT)
Prior art keywords
lower housing
slider
housing
slide gate
upper housing
Prior art date
Application number
PCT/KR2009/003074
Other languages
English (en)
Other versions
WO2009151250A3 (fr
Inventor
Hyung Gon Lee
Young Ho Kim
Original Assignee
Chosun Refractories Co. Ltd.
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 Chosun Refractories Co. Ltd. filed Critical Chosun Refractories Co. Ltd.
Priority to JP2011512391A priority Critical patent/JP5149990B2/ja
Priority to CN2009801219259A priority patent/CN102056691B/zh
Publication of WO2009151250A2 publication Critical patent/WO2009151250A2/fr
Publication of WO2009151250A3 publication Critical patent/WO2009151250A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/38—Means for operating the sliding gate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/40—Means for pressing the plates together

Definitions

  • the present invention relates to a slide gate which controls a flow rate of molten steel, and more specifically, the present invention relates to a slide gate in which one pair of overlapped opposite upper and lower valve plates vary an area of a molten steel flow opening for controlling a flow rate of the molten steel.
  • a step is performed in which refined molten steel is transferred from a ladle to a tundish.
  • the slide gate mounted to an underside of the ladle.
  • the slide gate has a molten steel flow opening for transfer of the molten steel.
  • the slide gate is provided with one pair of upper and lower valve plates overlapped with each other oppositely such that the valve plates slide with respect to each other in a state the valve plates are in contact with each other.
  • the slide gate serves as a valve as the one pair of oppositely overlapped valve plates move with respect to each other to vary the area of the molten steel flow opening thereby controlling the flow rate of the molten steel.
  • an elastic member such as a spring
  • the surface pressure on the valve plates is sustained with a plurality of coil springs as the elastic member, the surface pressure is generated or sustained by pressing the valve plate with the coil springs compressed for a predetermined extent.
  • Korean Patent Registration No. 551476 titled A slide gate valve for a molten metal container discloses a related art slide gate in which the surface pressure on the valve plates is sustained with an elastic force of springs.
  • the slide gate valve is provided with a housing 10 fixed to a metal container having an upper valve plate 1 placed therein, a slider unit 20 movably mounted in front/rear/up/down direction together with a lower valve plate 2 placed therein, a roller 40 slidably secured to the housing 10 or the slider unit 20 to slide along a guide track 30 formed in the slider unit 20 or the housing 10, supporting means 50 vertically mounted to the housing 10 or the slider unit 20 and connected to the roller 40, and compression springs 60 mounted to the supporting means 50 for providing a close contact force to refractory valve plates 1 and 2.
  • the guide track 30 has a groove 31 and an opening 32.
  • the roller 40 is in the groove 31. If the roller 40 is in the groove 31, the supporting means 50 moves down to compress the compression springs 60. As a result of this, owing to elastic force of the compression spring 60, the slide unit 20 pushes the lower valve plate 2 toward the upper valve plate 1 strongly to bring the valve plates 2 and 1 brought into close contact with each other, generating a strong surface pressure between the valve plates 1 and 2.
  • the upper and lower valve plates 1 and 2 mounted to the slide gate are consumable parts formed of a refractory material. If use of the slide gate is repeated, the parts are worn or fall off, to replace the parts with new ones. If the parts with new ones, it is required to remove the surface pressure which is maintained constant during operation of the slide gate.
  • the related art slide gate has a structure in which the slider unit 20 moves in front/rear directions as well as up/down directions, a strong external force is applied to the supporting means 50, the compression springs 60 and the roller 40 in a process the slide unit 20 is operated to generate, sustain, or remove the surface pressure.
  • a strong lateral pressure is applied to a connection portion of the supporting means 50 and the roller 40 in front/rear directions, and the lateral pressure is transmitted to the compression springs 60, too. If the lateral pressure is applied to the compression spring 60, the elastic force provided toward the lower valve plate 2 in a vertical direction become reduced or non-uniform, to fail to generate the proper surface pressure.
  • the related art slide gate has a structure in which the slider unit 20 moves in front/rear directions as well as up/down directions, the slide unit 20 and the housing 10 can not be connected to each other for themselves, but are required to be connected through a separate hinge member 70 without fail, and are required to be provided with a locking member 80, such as a hook, on an opposite side of the hinge member 70 for securing to each other. Consequently, a size of the slide gate becomes large, making a structure thereof complicate and opening/closing of the slide gate cumbersome.
  • the related art slide gate always has an inherited danger of an accident caused by negligence of safety that is liable to take place, in which the slider unit 20 slides due to an operator s mistake or malfunction of the apparatus during molten steel discharge operation to cause removal of the surface pressure.
  • an object of the present invention is to provide a slide gate which can improve reliability of sustenance of a surface pressure, has a simple structure and small size, and is easy to open/close.
  • Another object of the present invention is to provide a slide gate which can prevent an accident of a surface pressure removal from taking place during molten steel discharge operation, in advance.
  • a slide gate includes an upper housing having an upper valve plate placed in an inner side, a lower housing under the upper housing having a lower valve plate placed in an inner side, one pair of elastic hinge members passed through a right side and a left side of the upper housing or the lower housing vertically to secure the lower housing or the upper housing to the upper housing or the lower housing opposite thereto such that the lower housing or the upper housing is movable up and down elastically and to secure the lower housing to be enable to be opened or closed, a slider in the lower housing for receiving moving force from a driving cylinder in a state the slider supports the lower valve plate to slide in front/rear directions, a guide track mounted on an underside of the slider along a moving direction of the slider having recesses on one side, and one pair of rollers mounted on left/right sides of the lower housing to make rolling contact with the guide track.
  • the elastic hinge member includes one pair of compression shafts respectively mounted to pass through a left side and a right side of the upper housing or the lower housing vertically, one pair of hinge pins respectively mounted to pass through the left side and the right side of the lower housing or the upper housing horizontally, connection blocks for connecting the compression shafts to the hinge pins respectively, and compression springs for pressing down the compression shafts when the compression shafts move down, respectively.
  • the surface pressure is removed as the compression spring is decompressed following moving up of the lower housing in a case the roller is positioned at the recess in the guide track, and the surface pressure is generated and sustained as the compression spring is compressed following moving down of the lower housing in a case the roller moves away from the recess in the guide track.
  • a plurality of the elastic hinge members are arranged in front/rear directions of the upper housing or the lower housing.
  • the slide gate further includes a stopper pin detachably fastened to a shaft of the driving cylinder for making the slider to interfere with the lower housing in a process the driving cylinder pushes the slider, limiting movement of the slider unable to be positioned at the recess in the guide track.
  • the shaft of the driving cylinder includes a plurality of stopper pin fastening pin holes, and a fastening position of the stopper pin to the pin hole varies for making selective interference with the lower housing.
  • the present invention has following advantageous effects.
  • the up/down movable securing of the lower housing to the upper housing by means of the elastic hinge member, the positioning of the slider in the lower housing to support the lower valve plate while moving in front/rear directions, and the mounting of the roller in the lower housing to support the slider permit to make the lower housing only to move up/down, and slider only to move in the front/rear directions in processes the surface pressure is generated and sustained or removed.
  • the slide gate has a simple structure and opening/closing of the slide gate is easy and simple.
  • the stopper pin fastened to the shaft of the driving cylinder which interferes the lower housing so that the roller can not positioned at the recess in the guide track when the driving cylinder pushes the slider permits to prevent the unintended removal of the surface pressure coming from slide of the slider unit caused by operator s mistake or malfunction of the apparatus during molten steel discharge operation.
  • FIG. 1 illustrates a front section showing a service state of a related art slide gate having a surface pressure applied thereto;
  • FIG. 2 illustrates a side section of the state in FIG. 1;
  • FIG. 3 illustrates a side section showing a service state of a related art slide gate having a surface pressure removed therefrom;
  • FIG. 4 illustrates a side section of the state in FIG. 3
  • FIG. 5 illustrates a front section showing a service state of a slide gate in accordance with a preferred embodiment of the present invention having a surface pressure applied thereto;
  • FIG. 6 illustrates a side section of the state in FIG. 5
  • FIG. 7 illustrates a side section showing a service state of a related art slide gate having a surface pressure removed therefrom
  • FIG. 8 illustrates a side section of the state in FIG. 7
  • FIG. 9 illustrates a side section showing a state in which a stopper pin is fastened to a shaft of the driving cylinder so that a roller of the present invention can not be positioned in a recess of a guide track;
  • FIG. 10 illustrates a perspective view of a connection portion of a driving cylinder shaft and a slide showing a fastened state of the stopper pin in FIG. 9;
  • FIG. 11 illustrates a state of service of a slide gate in accordance with another preferred embodiment of the present invention.
  • the slide gate in accordance with a preferred embodiment of the present invention includes an upper housing 110 having an upper valve plate 101 placed in an inner side, a lower housing 120 under the upper housing 110 having a lower valve plate 102 placed in an inner side, one pair of elastic hinge members 130 passed through a right side and a left side of the upper housing 110 or the lower housing 120 vertically to secure the lower housing or the upper housing to the upper housing or the lower housing opposite thereto such that the lower housing or the upper housing is movable up and down elastically and to secure the lower housing 120 to be enable to be opened or closed, a slider 140 in the lower housing 120 for receiving moving force from a driving cylinder C in a state the slider 140 supports the lower valve plate 102 to slide in front/rear directions, a guide track 150 mounted on an underside of the slider 140 along a moving direction of the slider 140 having recesses 151 on one side, and one pair of rollers 160 mounted on left/right sides of the lower housing 120 to make rolling contact with the guide track 150.
  • the upper housing 110 is a square plate having a pass through hole (not shown) formed therein for placing on an outer side of an underside of a molten steel discharge hole of, such as ladle.
  • the upper valve plate 101 is mounted on an inner side of the upper housing 110 for bringing into close contact with an underside of the molten steel discharge hole.
  • the upper valve plate 101 has a molten steel flow hole formed to pass therethrough in conformity with the molten steel discharge hole.
  • the lower housing 120 has a plate shape in conformity with the upper housing 110 for placing on an outer side of a top side of a molten steel inlet hole of, such as tundish.
  • the upper housing 110 and the lower housing 120 are connected with the elastic hinge members 130 to enable opening/closing of the lower housing 120.
  • one pair of the elastic hinge members 130 are respectively mounted on the right side and the left side of the upper housing 110 or the lower housing 120, vertically.
  • a plurality of the elastic hinge members 130 may be mounted in front/rear directions of the upper housing 110 and the lower housing 120.
  • FIGS. 5 to 10 illustrate the elastic hinge members 130 mounted to the upper housing 110 vertically
  • FIG. 11 illustrates the elastic hinge members 130 mounted to the lower housing 120, vertically.
  • the elastic hinge member 130 includes one pair of compression shafts 131 respectively mounted to pass through the left side and the right side of the upper housing 110 vertically, one pair of hinge pins 132 respectively mounted to pass through the left side and the right side of the lower housing 120 horizontally, connection blocks 133 for connecting the compression shafts to the hinge pins 132 respectively, and compression springs 134 for pressing down the compression shafts 131 when the compression shafts move down, respectively.
  • the upper housing 110 has compression shaft mounting holes 111 formed in both sides thereof.
  • the lower housing 120 can move up/down elastically in a state the lower housing 120 is connected to the upper housing 110 with the elastic hinge members 130. That is, as shown in FIGS. 5 and 6, if the compression shaft 131 moves down by external force while compressing the compression spring 134, the lower housing 120 moves down following the compression shaft 131, and, as shown in FIGS. 7 and 8, if the external force is removed from the compression shaft 131, the lower housing 120 moves up following the compression shaft 131 which moves up to an original position owing to the elastic force of the compression spring 134.
  • the slide gate 100 is opened as the lower housing 120 swings down round the other side hinge pin 132.
  • both hinge pins 132 are removed at a time, the lower housing 120 can be separated from the connection blocks 133, wholly.
  • the slider 140 is in the lower housing 120.
  • the slider 140 has an end connected to a driving cylinder C mounted to an outside of the slide gate, for sliding in the front/rear directions by a sliding force from the driving cylinder C.
  • the slider 140 has guide tracks 150 mounted on an underside in a moving direction of the slider 140, and the lower housing 120 has rollers 160 mounted to left and right sides of the lower housing 120 matched to the guide tracks 150, respectively.
  • the rollers 160 assist secure movement of the slider 140 within the guide tracks 150 when the slider 140 is moved.
  • An unexplained reference numeral 161 denotes a rotation shaft of the roller 160 secured to the lower housing 120.
  • the guide track 150 has recesses 151 in an inner side. Accordingly, if the slider 140 moves such that the rollers 160 are positioned at the recesses 151 in the guide track 150, the compression shafts 131 move up to decompress the compression springs 134, thereby removing the surface pressure. If the slider 140 moves such that the rollers 160 move away from the recesses 151 in the guide track 150, the compression shafts 131 move down to compress the compression springs 134, thereby generating or sustaining the surface pressure.
  • the driving cylinder C may have a stopper pin 170 detachably fastened to a shaft thereof. If the driving cylinder C pushes the slider 140 in a state the stopper pin 170 is fastened to the shaft of the driving cylinder C, the stopper pin 170 moves toward the slider 140 along the shaft of the driving cylinder C until the stopper pin 170 interferes with one side of the lower housing 120.
  • the shaft of the driving cylinder C can push the slider no more, stopping movement of the slider 140. If the movement of the slider 140 stops, making positioning of the roller 160 at the recesses 151 in the guide track 150 impossible, the accident of unintended removal of the surface pressure can be prevented in advance owing to limitation of the movement of the slider 140 such that the roller 160 can not be positioned at the recesses 151 in the guide track 150, even if the slider 140 unit slides due to mistake of an operator or malfunction of the apparatus during molten steel discharge operation.
  • first pin holes 180 for limiting movement of the slider 140 to enable the roller 160 to be positioned at the recesses 151 in the guide track
  • second pin holes 190 for limiting movement of the slider 140 such that the roller 160 is unable to be positioned at the recesses 151 in the guide track.
  • the operator can prevent the accident by positioning the stopper pin 170 at the second pin hole 190 during operation.
  • a connection bar 200 may be secured to the slider 140 for assembling/disassembling the driving cylinder C and the slider 140 by means of the connection bar 200. That is, holding slots 201 and 202 are formed in the connection bar 200 in conformity with the first pin hole 180 and the second pin hole 190 formed in the shaft of the driving cylinder C, so that the driving cylinder C is connected to the slider 140 with the stopper pin 170 during operation, and the driving cylinder C is disconnected from the slider 140 by removing the stopper pin 170 during maintenance.
  • the state the roller 160 is positioned at the recess 151 of the guide track 150 is an initial state when no surface pressure acts, in which the upper housing 110 and the lower housing 120 are connected with the elastic hinge members 130, no additional fastening means, such as a hook, is required for connecting the upper housing 110 to the lower housing 120 like in the related art.
  • the driving cylinder C is operated to push the slider 140 to position the roller 160 at the recess 151 in the guide track 150. If the roller 160 is positioned at the recess 151, the roller 160 moved down thus moves up, making the compression shaft 131 to move up as much as a move down distance of the roller 160 while decompressing the compression spring 134, thereby removing the surface pressure.
  • both side hinge pins 132 may be removed at a time, to open the slide gate 100. That is, if both side hinge pins 132 are removed at a time, the lower housing 120 is separated from the connection blocks 133, falling off the upper housing 110.
  • the operator can make very convenient opening of the slide gate 100 for replacing the refractory parts, such as the valve plates.
  • FIG. 11 illustrates a slide gate in accordance with another preferred embodiment of the present invention, wherein the elastic members 130 are mounted to the lower housing 120 vertically, which can be compared to the foregoing embodiment such that the embodiment is identical to the foregoing embodiment fully except that configurations and operations are opposite. Accordingly, detailed description of the embodiment will be omitted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

La présente invention se rapporte à une porte coulissante qui régule un débit d'acier en fusion, et la présente invention se rapporte de manière plus spécifique à une porte coulissante dans laquelle deux plaques-vannes supérieure et inférieure opposées qui se chevauchent font varier une zone d'une ouverture d'écoulement d'acier en fusion pour réguler un débit d'acier en fusion. La porte coulissante comprend un logement supérieur 110 comportant une plaque-vanne supérieure 101 placée dans un côté intérieur, un logement inférieur 120 sous le logement supérieur 110 comportant une plaque-vanne inférieure 102 placée dans un côté intérieur, deux éléments d'articulation élastiques 130 traversant un côté droit et un côté gauche du logement supérieur 110 ou du logement inférieur 120 verticalement afin de fixer le logement inférieur au logement supérieur qui y est opposé ou le logement supérieur au logement inférieur qui y est opposé de sorte que le logement inférieur ou le logement supérieur puisse monter et descendre élastiquement et afin de fixer le logement inférieur 120 pour permettre son ouverture ou sa fermeture, un coulisseau 140 dans le logement inférieur 120 pour recevoir une force de déplacement provenant d'un cylindre d'entraînement C dans un état où le coulisseau 140 soutient la plaque-vanne inférieure 102 pour coulisser dans les directions avant/arrière, une voie de guidage 150 montée sur un dessous du coulisseau 140 le long d'une direction de déplacement du coulisseau 140 comportant des évidements 151 sur un côté, et deux rouleaux 160 montés sur les côtés gauche/droit du logement inférieur 120 afin que les rouleaux entrent en contact avec la voie de guidage 150.
PCT/KR2009/003074 2008-06-12 2009-06-09 Porte coulissante WO2009151250A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011512391A JP5149990B2 (ja) 2008-06-12 2009-06-09 スライドゲート
CN2009801219259A CN102056691B (zh) 2008-06-12 2009-06-09 滑动门

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080054916A KR100959071B1 (ko) 2008-06-12 2008-06-12 슬라이드 게이트
KR10-2008-0054916 2008-06-12

Publications (2)

Publication Number Publication Date
WO2009151250A2 true WO2009151250A2 (fr) 2009-12-17
WO2009151250A3 WO2009151250A3 (fr) 2010-10-21

Family

ID=41417229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/003074 WO2009151250A2 (fr) 2008-06-12 2009-06-09 Porte coulissante

Country Status (4)

Country Link
JP (1) JP5149990B2 (fr)
KR (1) KR100959071B1 (fr)
CN (1) CN102056691B (fr)
WO (1) WO2009151250A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2979777A4 (fr) * 2013-03-27 2016-11-16 Krosakiharima Corp Dispositif à buse coulissante

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6194269B2 (ja) * 2013-03-27 2017-09-06 黒崎播磨株式会社 スライディングノズル装置
JP6122371B2 (ja) * 2013-09-26 2017-04-26 黒崎播磨株式会社 スライディングノズル装置
CN104646654A (zh) * 2015-01-16 2015-05-27 长兴正发热电耐火材料有限公司 一种中间包滑动水口控流结构
CN105665690B (zh) * 2016-03-03 2017-12-08 无锡双木机械科技有限公司 一种安全高效门式自动加压滑动水口机构
JP6510466B2 (ja) * 2016-06-15 2019-05-08 東京窯業株式会社 スライディングゲート
CN108856692A (zh) * 2016-11-15 2018-11-23 贾海亮 一种匀建压的钢包滑动水口机构
KR20180057414A (ko) * 2016-11-22 2018-05-30 주식회사 대주기공 슬라이드 게이트의 하부노즐 프레임
CN110722147B (zh) * 2019-10-15 2021-05-25 佟长功 一种防侧漏滑板水口组件

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JPH0335481Y2 (fr) * 1984-09-11 1991-07-26
EP0277146B2 (fr) * 1986-08-20 1993-07-14 Stopinc Aktiengesellschaft Fermeture coulissante sur le bec de coulee d'une cuve contenant un bain de fusion
JP3066710B2 (ja) * 1994-10-28 2000-07-17 住友重機械鋳鍛株式会社 スライドゲ−トの面圧負荷装置
DE59601634D1 (de) 1995-02-17 1999-05-20 Stopinc Ag Schieberverschluss-system für einen Metallschmelze enthaltenden Behälter
AU756819B2 (en) 1998-07-26 2003-01-23 Stopinc Ag Slide gate for a container containing molten metal
KR100624830B1 (ko) * 2001-05-01 2006-09-18 구로사키 하리마 코포레이션 슬라이딩 노즐 장치
JP3614817B2 (ja) * 2001-12-28 2005-01-26 品川白煉瓦株式会社 スライドバルブの面圧負荷装置
DE602004012901T2 (de) * 2004-09-07 2009-04-02 Co.Me.Ca Costruzioni Meccaniche Carpenteria S.P.A. Ausgabevorrichtung für den stahlguss u. ä.
JP4216244B2 (ja) * 2004-11-11 2009-01-28 品川白煉瓦株式会社 鋳造設備におけるスライドバルブ装置
EP1944106B1 (fr) * 2006-10-26 2016-09-07 Yueqin Liu Porte coulissante destinée à un contenant en acier fondu
CN200988101Y (zh) * 2006-12-29 2007-12-12 鞍山热能滑动机械有限责任公司 钢水罐滑动水口开闭装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2979777A4 (fr) * 2013-03-27 2016-11-16 Krosakiharima Corp Dispositif à buse coulissante

Also Published As

Publication number Publication date
JP2011522703A (ja) 2011-08-04
KR20090128928A (ko) 2009-12-16
WO2009151250A3 (fr) 2010-10-21
CN102056691A (zh) 2011-05-11
CN102056691B (zh) 2012-12-26
KR100959071B1 (ko) 2010-05-20
JP5149990B2 (ja) 2013-02-20

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