EP2431511B1 - Yarn feeder for circular knitting machine - Google Patents

Yarn feeder for circular knitting machine Download PDF

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Publication number
EP2431511B1
EP2431511B1 EP10774789.1A EP10774789A EP2431511B1 EP 2431511 B1 EP2431511 B1 EP 2431511B1 EP 10774789 A EP10774789 A EP 10774789A EP 2431511 B1 EP2431511 B1 EP 2431511B1
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EP
European Patent Office
Prior art keywords
yarn
movable guide
elastic member
guide
feeding
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP10774789.1A
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German (de)
English (en)
French (fr)
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EP2431511A1 (en
EP2431511A4 (en
Inventor
Jun Tsujigo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Precision Fukuhara Works Ltd
Original Assignee
Precision Fukuhara Works 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.)
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Publication date
Application filed by Precision Fukuhara Works Ltd filed Critical Precision Fukuhara Works Ltd
Publication of EP2431511A1 publication Critical patent/EP2431511A1/en
Publication of EP2431511A4 publication Critical patent/EP2431511A4/en
Application granted granted Critical
Publication of EP2431511B1 publication Critical patent/EP2431511B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices

Definitions

  • the present invention relates to a yarn feeder for a circular knitting machine, particularly a jacquard circular knitting machine and a circular knitting machine provided with a yarn changer.
  • JP-B-61-47777 and JP-A-10-273858 are used to feed yarn according to the amount required by the knitting machine. They are used particularly in circular knitting machines that are provided with a yarn changer for feeding yarn to the knitting machine after switching between multiple colored yarns as necessary.
  • the tape-driven yarn feeder used in these circular knitting machines is provided with an endless tape that runs over a plurality of drive wheels, with the tape normally being driven together with the knitting machine when the knitting machine operates.
  • a yarn feeding pulley integrally formed coaxially with the drive wheels driven by this endless tape has a yarn guiding face around the periphery thereof that is covered with a stretchable resin band such as a rubber band having a friction surface which exerts a relatively large frictional force.
  • a fixed guide that has an introduction hole and an exit hole on a yarn inlet side and a yarn outlet side and a movable guide that has a yarn guide hole for guiding yarn at a tip thereof and that moves in an arc along the surface of the yarn feeding pulley are provided adjacent to the yarn feeding pulley in positions relative to each other.
  • Adjustably attached to this movable guide is an elastic device for moving the movable guide to a non-yarn feeding state by reducing the contact angle of yarn along the surface of the yarn feeding pulley, with the movable guide being moved to a yarn feeding state as the result of a greater force than the elastic force of the elastic device being generated by the tension of yarn selected by the yarn changer of the circular knitting machine.
  • Yarn is fed to the knitting machine at substantially the same speed as the surface peripheral speed of the yarn feeding pulley, by the frictional force of the rubber band on the surface of the yarn feeding pulley.
  • DE 20 2007 013 836 U1 relates to a yarn guide and a yarn feeding device having two meshing pinions and two guide arms having improved properties, which essentially comprise a sensitive but quick thread delivery in real time of different thread tension recorded.
  • GB 694 860 A relates to means for feeding yarns in knitting machines and has for its object to provide improved, simply constructed and efficient means for this purpose adapted so as to control the feeding of a yarn from a wound package, such as a bobbin, cone or the like to the needles of a knitting machine so as to maintain such feed at substantially constant tension.
  • GB 2 115 017 relates to a self-actuating yarn feeding apparatus for circular knitting machines, of the types which feeds yarn positively to the knitting machine in response to and for the time that a demand or call for the yarn is made by knitting action of the needles of the machine.
  • the movable guide moves so as to be in a non-yarn feeding state in which the contact angle of the yarn is reduced, although with a conventional apparatus the yarn is not completely removed from the surface of the yarn feeding pulley and remains partially in contact therewith.
  • the contacting yarn may become wound around the friction surface of the yarn feeding pulley due to friction against the friction surface of the yarn feeding pulley or break due to friction.
  • the amount of yarn fed from the yarn feeder may differ from the amount required by the knitting machine depending on the pattern, causing the yarn to slacken and become wound around the friction surface of the yarn feeding pulley. This may result in a decrease in the availability of the knitting machine or a decrease in the quality of the knitted fabric.
  • the present invention has been made to solve these problems with the conventional technology, and has as its object to provide a yarn feeder that is provided with yarn feeding functions compatible with both striped knitting and jacquard knitting.
  • a yarn feeder for a circular knitting machine of the present invention includes at least one yarn feeding pulley, a fixed guide at least two movable guides, and a base supporting the movable guides being provided adjacent to the yarn fooding pulley, the fixed guide having an introduction hole on a yarn inlet side and an exit hole on a yarn outlet side, the movable guides being composed of a first movable guide and a second movable guide, and each of the movable guides having a yarn guide hole for guiding yarn at a tip thereof, and moving in an arc along a surface of the yarn feeding pulley, around a pivot shaft that is offset from a central shaft of the yarn feeder.
  • the first movable guide has a first swing member that moves in an arc and the second movable guide has a second swing member that moves in an arc, and the first swing member has disposed thereon a first elastic member so as to generate a resistance force to a feeding tension of yarn, and the second swing member has disposed thereon a second elastic member so as generate a resistance force to a feeding tension of yarn.
  • the base and the second swing member are coupled by the second elastic member, and the second swing member and the first swing member are coupled by a second shaft and the first elastic member.
  • the second movable guide is set so as to move in a travel direction of yarn with a weaker force than the first movable guide.
  • the resistance force generated by the second elastic member corresponding to the second movable guide that moves the second movable guide in a counter-travel direction of yarn is set to be weaker than the resistance force generated by the first elastic member corresponding to the first movable guide that moves the first movable guide in the counter-travel direction of yarn.
  • the second elastic member and the first elastic member are set to cause at least one of the following (a) to (e), that is: (a) yarn passing through the first movable guide, the second movable guide and the exit hole from the introduction hole to be held without contacting a yarn guiding face with the yarn feeder in a non-yarn feeding state; (b) the second movable guide to move from the non-yarn feeding state to a movement start state together with the first movable guide while maintaining the interval therebetween, in a case where a force generated by the feeding tension of yarn passing through the yarn guide hole that moves the second movable guide in the travel direction of yarn is stronger than the resistance force generated by the second elastic member corresponding to the second movable guide that moves the second movable guide in the counter-travel direction of yarn; (c) the first movable guide to move from the movement start state to a yarn feeding state, in a case where a force generated by the feeding tension of yarn passing through the yarn guide hole that moves the first movable guide in the travel
  • an elastic force adjustment device is provided such that an elastic force of the second elastic member or the first elastic member is adjustable.
  • a plurality of selectable pins provided on the base can be used, which are capable of changing a terminal setting position of the second elastic member, or a combination of a plurality of selectable holes provided in the base and a swingable lever having at one end a protrusion that is engageable with the holes can be used.
  • the lever is a leaf spring, and the protrusion is pushed into the holes by the spring force thereof.
  • the elastic force adjustment device is not limited to the above, and may be a mechanism that allows the lever to stop freely within the range of movement of the lever.
  • Preferably means for regulating an angle of the arc movement of both the second swing member and the first swing member is provided.
  • a combination of a third pin of one swing member and a link groove of the other swing member, or a positioning member provided on one of the second swing member and the first swing member can be used, for example.
  • a stopper for restricting the revolution of the movable guides is provided to restrict the range of movement of the first movable guide and the second movable guide.
  • the stopper is, for example, composed of a vertical portion that abuts against the second movable guide 17 and an arc-shaped holding portion provided above the vertical portion, with an arc-shaped groove corresponding to the holding portion being provided in a housing of the yarn feeder, and the vertical portion being held so as to be moveable in an arc circumferentially around the yarn feeding pulley.
  • the stopper can be provided with an adjustment mechanism for adjusting a contact area between the yarn and the yarn feeding pulley depending on the type of yarn.
  • the adjustment mechanism is, for example, a plurality of notches provided in the holding portion, a ball disposed on the housing so as to correspond to the notches, and a hole provided in an upper portion of the ball and in which a spring and a screw are disposed.
  • the first swing member can be omitted from the first movable guide, and the first movable guide can itself be replaced by a single leaf spring.
  • the first movable guide and the second movable guide are movable in tandem between the introduction hole and the exit hole, around the yarn guiding face. Further, the first movable guide and the second movable guide move to the yarn feeding position as a result of the contact angle of the yarn with the yarn guiding face increasing and to the non-yarn feeding position as a result of the contact angle of the yarn with the yarn guiding face decreasing, with the feeding tension of yarn increasing or decreasing according to the desired knitting pattern.
  • the second movable guide moves so as to approach the exit hole, following an increase in the feeding tension.
  • the first movable guide moves in tandem with the second movable guide so as to approach the exit hole while maintaining the interval between the first movable guide and the second movable guide at the non-yarn feeding position.
  • the first movable guide moves to the maximum position allowed. At this time, the contact angle of the yarn with the yarn guiding face is maximized.
  • FIG. 4 is a side view showing a device 1 for feeding yarn to a circular knitting machine.
  • This yarn feeder 1 has a housing 2, and this housing 2 is attached by a screw 3 to a circular support ring 4.
  • a front portion of the housing 2 is, as shown in FIG. 7 , provided with a shaft 6 that is supported by ball bearings 5.
  • a drive means 7 At an upper portion of the shaft 6 is provided a drive means 7.
  • the drive means 7 is composed of two drive wheels 7a and 7b, and these wheels are fixed to the shaft 6 by a screw 8.
  • a large number of yarn feeders 1 are provided on the circular support ring 4, and endless tapes 9 extend circumscribedly around all of the drive wheels 7a and 7b thereof. These endless tapes 9 are the same as known endless tape, and are driven in synchronization with operation of the circular knitting machine.
  • a clutch 12 that is movable in a vertical direction and can be set to three positions.
  • the rotation of the first drive wheel 7a on the upper side is transmitted to a yarn feeding pulley 10 when this clutch 12 is moved to the upper position
  • the rotation of the second drive wheel 7b on the lower side is transmitted to the yarn feeding pulley 10 when the clutch 12 is moved to the lower position.
  • a neutral position in which the rotation of the drive wheels 7a and 7b is not transmitted to the yarn feeding pulley 10 is achieved when the clutch 12 is moved to the intermediate position.
  • a plurality of yarn feeding pulleys 10 which are yarn feeding means that are rotatable at the same speed as the drive means 7 and each have at least one yarn guiding face. These yarn pulleys 10 are fixed to the shaft 6 by a screw 11.
  • a fixed guide 15 and at least two movable guides, namely, a first movable guide 16 and a second movable guide 17, are provided adjacent to the yarn feeding pulley 10.
  • the fixed guide 15 has an introduction hole 15a and an exit hole 15b on a yarn inlet side and a yarn outlet side.
  • the first movable guide 16 and the second movable guide 17 are movable in tandem between the introduction hole 15a and the exit hole 15b, around a yarn guiding face 10a.
  • the tips of the first movable guide 16 and the second movable guide 17 are respectively provided with a first yarn guide hole 16a and a second yarn guide hole 17a for guiding yarn.
  • a wear-resistant material such as a porcelain or a ceramic that is not readily worn by friction against yarn is preferably used for the first yarn guide hole 16a and the second yarn guide hole 17a.
  • first movable guides 16 and second movable guides 17 are provided in correspondence to the positions of the plurality of yarn feeding pulleys 10.
  • FIG. 5 is a partial enlarged view of FIG. 2 .
  • first swing member 21 and a second swing member 19 are axially supported rotatably around a second shaft 22.
  • the shaft portions of the first swing member 21 and the second swing member 19 are preferably provided with bearings.
  • the first swing member 21 has secured thereto the first movable guide 16, and the second swing member 19 has secured thereto the second movable guide 17.
  • These swing members and movable guides may be integrated by resin molding.
  • the second swing member 19 has an extension, and at the end of this extension is provided a first pin 20 for fastening an elastic member (see FIG. 5 ).
  • first swing member 21 is provided with a link groove 21a in order to regulate the angle of arc movement.
  • a third pin 23 that is secured to the second swing member 19 is fitted into this link groove 21.
  • the second movable guide 17 has attached thereto in an elastic force adjustable manner a second elastic member 24, in order to move the second movable guide 17 to the non-yarn feeding state by reducing the contact angle of yarn along the surface of the yarn feeding pulley 10.
  • the second elastic member 24 preferably is a tension spring, and one end thereof is supported by the base 18 while the other end is supported by the second swing member 19.
  • on the base 18 is provided a plurality of pins 26, and the elastic force of the second elastic member 24 is adjustable by selectively moving the end of the second elastic member 24 on the base side to any of these pins 26.
  • the first movable guide 16 has attached thereto a first elastic member 25, in order to move the first movable guide 16 to the non-yarn feeding state by reducing the contact angle of yarn along the surface of the yarn feeding pulley 10.
  • the first elastic member 25 preferably is a tension spring, and one end thereof is fastened by the first pin 20 of the second swing member 19 while the other end is fastened by the first swing member 21.
  • the elastic force of the first elastic member 25 can also be configured to be adjustable similarly to the second elastic member. For example, the elastic force of the spring can be adjusted by replacing the spring with springs of different elastic forces.
  • the second elastic member 24 and the first elastic member 25 are set to satisfy the following relationship. That is, the total force calculated by multiplying the distance from the point of force to the point of application by the elastic force of the elastic member is set to be weaker for the second elastic member 24 than the first elastic member 25.
  • FIG. 2 illustrates (a) the non-yarn feeding state, (b) the movement start state, and (c) the yarn feeding state of the yarn feeder 1.
  • the second movable guide 17 moves from the non-yarn feeding state to the movement start state together with the first movable guide 16 while maintaining the interval therebetween (Movement A).
  • the second movable guide 17 moves to the non-yarn feeding position together with the first movable guide 16 while maintaining the interval therebetween (Movement D).
  • yarn can be fed to the knitting machine while maintaining the feeding tension of yarn by repeating the operations of movements B and C and feeding the amount of yarn required by the knitting machine.
  • a stopper 27 abuttable against the second movable guide 17 is provided, in order to restrict the range of the arc movement of the second movable guide 17 when transitioning from the non-yarn feeding state to the yarn feeding state, according to the frictional resistance between the yarn guiding face and the yarn (see FIG. 9 ).
  • the stopper 27 is composed of a vertical portion 27a that abuts against the second movable guide 17 and an arc-shaped holding portion 27b provided above the vertical portion 27a.
  • the housing 2 of the yarn feeder 1 is provided with an arc-shaped groove corresponding to the holding portion 27b, and the vertical portion 27a is held so as to be movable in an arc around the yarn feeding pulleys 10.
  • the stopper 27 is provided with an adjustment mechanism 2a, 27d for adjusting the contact area between the yarn and the yarn feeding pulleys depending on the type of yarn.
  • This adjustment mechanism is composed of a plurality of notches 27d provided in the holding portion 27b and a ball disposed on the housing 2 so as to correspond to these notches 27d.
  • An upper portion of the ball is provided with a hole 2a in which a spring and a screw are disposed, enabling the ball to be held by the plurality of notches 27d.
  • shaft portions 16b and 17b of the first and second movable guides 16 and 17 can be fixed in place by being hooked into L-shaped grooves 27c provided in the vertical portion 27a of the stopper. While L-shaped grooves are provided in order to fix the movable guides in place, the fixing means are not limited to L-shaped grooves.
  • the top of the base 18 in FIGS. 2 and 5 is covered with a cover so as to prevent lint or the like produced from the knitting yarn from sticking to the swing members and elastic members.
  • the schematic of the yarn feeder is similar to the first embodiment (see [0027] to [0034]), and thus a description of this portion is omitted.
  • FIG. 3 and FIG. 6 is a partial enlarged view of FIG. 3 .
  • a base 118 At the other end of this base 118, a second swing member 119 is pivotally supported so as to be movable in an arc around a fourth pin 100.
  • the second movable guide 117 is secured to this second swing member 119.
  • a first swing member 121 is pivotally supported so as to be movable in an arc around a second shaft 122.
  • the first movable guide 116 is secured to this first swing member 121.
  • the base 118 and the first swing member 121 are not directly connected.
  • the second swing member 119 is provided with a first positioning member 119a and a second positioning member 119b in order to regulate the angle of the arc movement of the first movable guide 116.
  • the second movable guide 117 has attached thereto a second elastic member 124, in order to move the second movable guide 117 to the non-yarn feeding state by reducing the contact angle of yarn along the surface of the yarn feeding pulley 10.
  • the second elastic member 124 is preferably a tension spring, and one end thereof is fastened by the base 118 while the other end is fastened by a first pin 120 that is attached to a central portion of the second swing member 119.
  • the second elastic member 124 is attached in a manner that enables the elastic force thereof to be adjusted.
  • a lever 126 is swingably supported on the base 118 by a fulcrum 126a provided at a central portion thereof, and a protrusion 127 is provided at one end of the lever 126.
  • the protrusion 127 moves in an arc as a result of swinging the other end of the lever 126.
  • a plurality of holes 118a engageable with the protrusion 127 are provided on the arc.
  • the end of the second elastic member 124 on the base side is supported between the fulcrum of the lever and the protrusion 127.
  • the elastic force of the second elastic member 124 is adjustable by selectively moving the protrusion 127 among the plurality of holes 118a.
  • the lever 126 is a leaf spring and the protrusion 127 is pushed into the holes 118a by the spring force thereof.
  • the elastic force adjustment device is not limited to the above, and may be a mechanism that allows the lever to stop freely within the range of movement of the lever.
  • the first movable guide 116 has attached thereto a first elastic member 125, in order to move the first movable guide 116 to the non-yarn feeding state by reducing the contact angle of yarn along the surface of the yarn feeding pulley 10.
  • the first elastic member 125 preferably is a torsion spring, and one end thereof is supported by the first pin 120 attached to a central portion of the second swing member 119 while the other end is wrapped around the center of the first swing member 121.
  • the second movable guide 17,117 is set so as to move in the travel direction of yarn with a weaker force than the first movable guide 16, 116.
  • the resistance force generated by the second elastic member 24, 124 corresponding to the second movable guide 17, 117 that acts to move the second movable guide 17, 117 in the counter-travel direction of yarn is set to be weaker than the resistance force generated by the first elastic member 25, 125 corresponding to the first movable guide 16, 116 that acts to move the first movable guide 16, 116 in the counter-travel direction of yarn.
  • Table 1 Frequency of yarn winding around friction surface of yarn feeding pulley per garment Winding Conventional Technology ⁇ Embodiment 1 ⁇ Embodiment 2 ⁇ ⁇ : 0 times ⁇ : Less than 10 times ⁇ : 10 times or more
  • the present invention enables the availability and knitted fabric quality of a knitting machine to be improved. Moreover, the horizontal space required to install the yarn feeder in a circular knitting machine is similar to the past.
  • FIGS. 10 and 11 show a third embodiment not falling under the scope of the claims
  • the third embodiment differs from the second embodiment in that the first swing member is omitted, and the first movable guide 216 is itself replaced by a single leaf spring.
  • the hundreds digit in the second embodiment is changed from "1" to "2" for components in the third embodiment that correspond to the second embodiment, and a detailed description thereof is omitted.
  • the operation and effect of the third embodiment are substantially the same as the first and second embodiments.
  • the present invention is a yarn feeder for feeding yarn in a circular knitting machine, particularly a jacquard circular knitting machine and a circular knitting machine provided with a yarn changer, and is suitable for ameliorating the problem of yarn becoming wound around the friction surface of the yarn feeding pulley or breaking due to friction against the rubber band of the yarn feeding pulley depending on the type of yarn.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP10774789.1A 2009-05-13 2010-04-01 Yarn feeder for circular knitting machine Active EP2431511B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009116438 2009-05-13
JP2010065720A JP2010285734A (ja) 2009-05-13 2010-03-23 丸編機における糸送り装置
PCT/JP2010/056005 WO2010131530A1 (ja) 2009-05-13 2010-04-01 丸編機における糸送り装置

Publications (3)

Publication Number Publication Date
EP2431511A1 EP2431511A1 (en) 2012-03-21
EP2431511A4 EP2431511A4 (en) 2013-12-18
EP2431511B1 true EP2431511B1 (en) 2016-08-31

Family

ID=43084909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10774789.1A Active EP2431511B1 (en) 2009-05-13 2010-04-01 Yarn feeder for circular knitting machine

Country Status (5)

Country Link
EP (1) EP2431511B1 (zh)
JP (1) JP2010285734A (zh)
CN (1) CN102378836B (zh)
TW (1) TWI518220B (zh)
WO (1) WO2010131530A1 (zh)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
CN102127838B (zh) * 2011-04-06 2013-02-13 泉州精准机械有限公司 电脑横机单轴积极送纱器
CN102864570B (zh) * 2011-07-04 2014-12-31 陈仁惠 多臂导纱装置
CN103161018A (zh) * 2011-12-09 2013-06-19 佰龙机械厂股份有限公司 圆型针织机送纱系统
KR101625613B1 (ko) * 2014-05-26 2016-05-30 양진석 편물기용 실 공급장치
CN105463684B (zh) * 2014-08-26 2018-06-29 陈仁惠 双臂双导纱眼的导纱装置
TWI611058B (zh) * 2014-11-19 2018-01-11 Po Lin Chen 雙臂撥紗導紗裝置
CN105671775B (zh) * 2014-11-20 2017-12-26 陈伯霖 双臂拨纱导纱装置
TWI623661B (zh) * 2014-12-29 2018-05-11 Po Lin Chen Yarn feeding wheel
EP4019683A1 (de) * 2020-12-23 2022-06-29 KARL MAYER STOLL R&D GmbH Wirk- oder strickmaschine mit mindestens einem fadenführer zur zuführung von einem oder mehreren separaten fäden
US20230193532A1 (en) * 2021-12-22 2023-06-22 Nike, Inc. Tensioning device

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US2658367A (en) * 1950-05-09 1953-11-10 Mellor Bromley & Co Ltd Means for feeding yarns in knitting machines
GB694860A (en) * 1950-05-09 1953-07-29 Mellor Bromley & Co Ltd Improvements in or relating to means for feeding yarns in knitting machines
JPS58135066A (ja) 1982-02-05 1983-08-11 Fukuhara Seiki Seisakusho:Kk 編機における積極型の糸送り装置
JPS6147777A (ja) 1984-08-13 1986-03-08 Kanegafuchi Chem Ind Co Ltd 太陽電池用保護フイルム
ES2113806B1 (es) * 1995-03-17 1999-01-01 Satortex S L Dispositivo alimentador de hilo en maquinas textiles provistas de dispositivos listadores.
DE19637556C1 (de) * 1996-09-14 1998-01-08 Memminger Iro Gmbh Fadenliefervorrichtung
DE19712739A1 (de) 1997-03-26 1998-10-01 Sipra Patent Beteiligung Fadenliefereinrichtung für intermittierenden Fadenverbrauch
JPH1143851A (ja) * 1997-07-17 1999-02-16 Fukuhara Seiki Seisakusho:Kk 丸編機における積極型の糸送り装置
DE10006599A1 (de) * 2000-02-15 2001-08-23 Memminger Iro Gmbh Friktionsfournisseur mit Vibrationsanregung
TW200900549A (en) * 2007-06-22 2009-01-01 Jen-Hui Chen Yarn-guiding device with synchronously operated two arms
CN201082915Y (zh) * 2007-07-26 2008-07-09 陈仁惠 双臂同步运作的导纱装置

Also Published As

Publication number Publication date
EP2431511A1 (en) 2012-03-21
EP2431511A4 (en) 2013-12-18
JP2010285734A (ja) 2010-12-24
TW201043743A (en) 2010-12-16
CN102378836B (zh) 2013-12-25
WO2010131530A1 (ja) 2010-11-18
CN102378836A (zh) 2012-03-14
TWI518220B (zh) 2016-01-21

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