WO2013157069A1 - エレベータ装置 - Google Patents
エレベータ装置 Download PDFInfo
- Publication number
- WO2013157069A1 WO2013157069A1 PCT/JP2012/060244 JP2012060244W WO2013157069A1 WO 2013157069 A1 WO2013157069 A1 WO 2013157069A1 JP 2012060244 W JP2012060244 W JP 2012060244W WO 2013157069 A1 WO2013157069 A1 WO 2013157069A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- car
- suspension means
- emergency stop
- governor
- force
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
Definitions
- the present invention relates to an elevator apparatus in which a car is emergency-stopped in the event of an abnormality such as breakage of a suspension means or failure of a control device.
- the first overspeed Vos (operating speed of the operation stop switch) is set to about 1.3 times the rated speed Vo
- the second overspeed Vtr (emergency stop operating speed) is set. It is set to about 1.4 times the rated speed Vo.
- the first overspeed Vos operating speed of the operation stop switch
- the second overspeed Vtr discharge stop operating speed
- the car speed may reach the bottom of the hoistway before it rises to the first overspeed Vos or the second overspeed Vtr.
- the car is decelerated and stopped by the shock absorber.
- the buffer requires a longer buffer stroke as the speed to be decelerated is higher, and the length of the buffer is determined according to the first overspeed Vos and the second overspeed Vtr.
- a car position switch is provided near the terminal floor, and when the car position switch is operated, an abnormality is detected at the terminal overspeed Vts lower than the first overspeed Vos, and power is supplied to the hoisting machine.
- a method of blocking is also proposed.
- the collision speed Vs Vts + g ⁇ Ts It is. If the collision speed Vs is lower than the second overspeed Vtr of the governor, the buffer stroke of the shock absorber can be shortened accordingly.
- the structure of the governor becomes complicated in order to reduce the first overspeed Vos and the second overspeed Vtr in the vicinity of the terminal floor.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an elevator apparatus capable of saving a hoistway with a simple configuration.
- An elevator apparatus is mounted on a car, a suspension means for suspending the car, a drive device for raising and lowering the car via the suspension means, a car guide rail for guiding the raising and lowering of the car, and engaging with the car guide rail. And an emergency stop device for emergency stop of the car, and a mass body that operates in relation to the movement of the car. When acceleration exceeding a preset value occurs in the car, it occurs in the mass body.
- An abnormal acceleration detection mechanism that activates the emergency stop device using inertial force, a break detection unit that detects breakage of the suspension means, and activates the emergency stop device when no breakage of the suspension means is detected by the breakage detection means
- a resistance adding device is provided that applies a resistance force to the mechanism for causing the suspension means to decrease and reduces the resistance force when the breakage detecting means detects the breakage of the suspension means.
- the elevator apparatus has a simple configuration without complicating the structure of the governor because the braking apparatus is operated by the abnormal acceleration detection mechanism when an acceleration exceeding a preset set value occurs in the car.
- the resistance adding device gives a resistance force to the mechanism for operating the emergency stop device when no breakage of the suspension means is detected, and reduces the resistance force when the suspension means breakage is detected.
- the settable range of the force required to operate the emergency stop device can be widened, the force required to operate the emergency stop device can be adjusted more easily, and the inertia of the mass body An increase in cost for adjusting the mass can be suppressed.
- FIG. 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
- a machine room 2 is provided in the upper part of the hoistway 1.
- a hoisting machine (driving device) 3 In the machine room 2, a hoisting machine (driving device) 3, a deflecting wheel 4, and a control device 5 are installed.
- the hoisting machine 3 includes a drive sheave 6, a hoisting machine motor that rotates the driving sheave 6, and a hoisting machine brake (electromagnetic brake) that brakes the rotation of the driving sheave 6.
- the hoisting machine brake includes a brake wheel (drum or disk) coupled coaxially with the drive sheave 6, a brake shoe that contacts and separates from the brake wheel, a brake spring that presses the brake shoe against the brake wheel and applies a braking force, And an electromagnetic magnet that releases the braking force by releasing the brake shoe from the brake wheel against the brake spring.
- Suspension means 7 is wound around the drive sheave 6 and the deflecting wheel 4. As the suspension means 7, a plurality of ropes or a plurality of belts are used. A car 8 is connected to the first end of the suspension means 7. A counterweight 9 is connected to the second end of the suspension means 7.
- the car 8 and the counterweight 9 are suspended in the hoistway 1 by the suspension means 7 and are raised and lowered in the hoistway 1 by the hoisting machine 3.
- the control device 5 moves the car 8 up and down at a set speed by controlling the rotation of the hoisting machine 3.
- a pair of car guide rails 10 that guide the raising and lowering of the car 8 and a pair of counterweight guide rails 11 that guide the raising and lowering of the counterweight 9 are installed.
- a car buffer 12 that buffers the collision of the car 8 with the hoistway bottom and a counterweight buffer 13 that buffers the collision of the counterweight 9 with the hoistway bottom are installed. ing.
- an emergency stop device 17 is mounted as a braking device that engages with the car guide rail 10 to stop the car 8 in an emergency.
- a progressive emergency stop is used (generally, an emergency emergency stop is used in an elevator device having a rated speed exceeding 45 m / min).
- the emergency stop device 17 is provided with an operating lever 18 for operating the emergency stop device 17.
- the machine room 2 is provided with a governor 19 that detects an overspeed (abnormal speed) of the car 8.
- the governor 19 includes a governor sheave, an overspeed detection switch, a rope catch, and the like.
- An endless governor rope 20 is wound around the governor sheave.
- the governor rope 20 is laid in a ring shape in the hoistway 1.
- the governor rope 20 is wound around a tension wheel 21 arranged at the lower part of the hoistway 1.
- the governor rope 20 is connected to the operating lever 18. Thus, when the car 8 is raised and lowered, the governor rope 20 is circulated, and the governor sheave is rotated at a rotational speed corresponding to the traveling speed of the car 8. Further, the mass body 22 of the first embodiment includes a governor 19, a governor rope 20, and a tension wheel 21.
- the governor 19 mechanically detects that the traveling speed of the car 8 has reached an overspeed. As the overspeed to be detected, a first overspeed Vos higher than the rated speed Vo and a second overspeed Vtr higher than the first overspeed are set.
- the overspeed detection switch When the traveling speed of the car 3 reaches the first overspeed Vos, the overspeed detection switch is operated. When the overspeed detection switch is operated, the power supply to the hoisting machine 3 is cut off, and the car 8 is suddenly stopped by the hoisting machine brake.
- FIG. 2 is a configuration diagram showing the car 8 in FIG. 1 in an enlarged manner.
- the swinging shaft of the operating lever 18 is provided with a torsion spring 23 that applies a torque in the direction opposite to the direction in which the safety device 17 is operated (clockwise in the figure) to the operating lever 18.
- the spring force of the torsion spring 23 is set so that the emergency stop device 17 does not operate in a normal lifting state.
- the abnormal acceleration detection mechanism 24 of the first embodiment has a mass body 22 and a torsion spring 23.
- the emergency stop device 17 is provided with an electromagnetic actuator 31 as a resistance force adding device that applies a resistance force to a mechanism for operating the emergency stop device 17.
- the electromagnetic actuator 31 has a solenoid coil 32, an operating piece 33, and a shoe 34 fixed to the tip of the operating piece 33.
- the car 8 has a car frame 14 and a car room 15 supported by the car frame 14.
- the car frame 14 has an upper beam 14 a disposed horizontally above the car room 15.
- the first end of the suspension means 7 is connected to the upper beam 14a.
- a terminal member 35 is attached to the first end portion of the suspension means 7.
- a push spring 36 is provided between the terminal member 35 and the lower surface of the upper beam 14a. The push spring 36 is pressed with a force corresponding to the weight of the car 8 and applies tension to the suspension means 7.
- a break detection switch 37 is provided as a break detection means for detecting breakage of the suspension means 7.
- two or more break detection switches 37 are arranged corresponding to each terminal member 35.
- the breakage detection switch 37 is connected to the solenoid coil 32 via the wiring 38. If the suspension means 7 is broken for any reason, the tension of the suspension means 7 is lost and the push spring 36 is extended as shown in FIG. As a result, the terminal member 35 moves downward with respect to the car 8 and the breakage detection switch 37 is operated.
- the break detection switch 37 When the break detection switch 37 is operated by the terminal member 35, the energization to the solenoid coil 32 is cut off. When the break detection switch 37 is not operated, the solenoid coil 32 is energized.
- the force Fs [N] required for operating the emergency stop device 17 varies depending on the presence or absence of the rotational resistance force applied from the electromagnetic actuator 31 to the operating lever 18. That is, the force necessary to operate the emergency stop device 17 when the suspension means 7 is not broken is Fs1 [N], and the force necessary to operate the emergency stop device 17 when the suspension means 7 is broken. Is Fs2 [N], Fs2 ⁇ Fs1.
- the mass of the governor rope 20 is Mr [kg]
- the inertia mass at the diameter around which the governor rope 20 of the governor 19 is wound is Mg [kg]
- the governor rope of the tension wheel 21 Assuming that the inertial mass at the diameter around which 20 is wound is Mh [kg]
- the speed at which the car 8 is emergency braked by detecting the abnormal acceleration can be made smaller than the abnormal speed detected by the governor 19, so that the buffer stroke of the car shock absorber 12 can be shortened.
- the cost of the car shock absorber 12 can be reduced.
- the dimension of the bottom part of the hoistway 1 which installs the car buffer 12 can be shortened. That is, space saving of the hoistway 1 can be achieved with a simple configuration without complicating the structure of the governor 19.
- Vio can be set to an arbitrary size. Become.
- the force Fs [N] necessary for operating the emergency stop device 17 can be set.
- the range becomes narrow, and it takes time and effort to adjust the force Fs [N] at the factory, and the cost increases.
- the inertial mass Mt [kg] of the mass body 22 may be increased.
- the force Fs [N] required to operate the emergency stop device 17 is also increased, and this time the speed governor 19 is in the second overspeed Vtr (usually about 1.4 times the rated speed Vo). ) Is detected, it is necessary to increase the gripping force Fg [N] applied to the suspension means 7. For this reason, it is necessary to enlarge the governor 19 as well, and the cost increases with an increase in the inertial mass Mt [kg] of the mass body 22.
- the force Fs2 [N] necessary for operating the emergency stop device 17 when the electromagnetic actuator 31 is not provided is adjusted. Thereafter, the electromagnetic actuator 31 is assembled to the emergency stop device 17, and the shoe 34 is pressed against the rotation base of the operating lever 18.
- force Fs2 is set so that Formula (2) and Formula (7) may be satisfy
- the settable range of Fs2 [N] is widened by the amount Fsx [N] of the rotational resistance force of the electromagnetic actuator 31 compared to the condition of Expression (5). That is, when the suspension means 7 is broken, the magnitude of the inertial force necessary for operating the emergency stop device 17 can be reduced. For this reason, adjustment of force Fs2 [N] required in order to operate the emergency stop apparatus 17 in a factory can be performed more simply.
- the car 8 is stopped when the first overspeed is detected by the speed governor 19 as in the past, and the speed governor 19 and the speed governor rope 20 are used as the mass body 22 when the car 8 is dropped.
- the emergency stop device 17 can be operated. For this reason, a separate mass body is not required, and the system configuration can be simplified.
- the torsion spring 23 is used to adjust the force Fs necessary for operating the safety device 17.
- a spring or the like is not necessarily added. It does not have to be, and when added, it is not limited to a torsion spring.
- the break detection means is not limited to the break detection switch 37, and the installation position thereof is not limited to the upper part of the cab 15.
- the configuration of the mass body and the resistance applying device is not limited to the first embodiment.
- the type of elevator apparatus to which the present invention is applied is not limited to the type shown in FIG.
- the roping method is not limited to this, and the present invention can be applied to, for example, a 2: 1 roping elevator device.
- the present invention can be applied to a machine room-less elevator, a multi-car type elevator device, a double deck elevator, or the like.
Abstract
Description
Vs=Vts+g×Ts
である。この衝突速度Vsが調速機の第2過速度Vtrよりも低ければ、その分だけ緩衝器の緩衝ストロークを短縮することが可能である。
実施の形態1.
図1はこの発明の実施の形態1によるエレベータ装置を示す構成図である。図において、昇降路1の上部には、機械室2が設けられている。機械室2には、巻上機(駆動装置)3、そらせ車4、及び制御装置5が設置されている。巻上機3は、駆動シーブ6と、駆動シーブ6を回転させる巻上機モータと、駆動シーブ6の回転を制動する巻上機ブレーキ(電磁ブレーキ)とを有している。
Mt=Mr+Mg+Mh
である。
Fp=Mt×g ・・・(1)
Fs2<Mt×g ・・・(2)
Fe=Mt×α ・・・(3)
Fs>Mt×α ・・・(4)
Mt×α<Fs<Mt×g ・・・(5)
Fs1=Fs2+Fsx ・・・(6)
Fs1(=Fs2+Fsx)>Mt×α ・・・(7)
Mt×α-Fsx<Fs2<Mt×g ・・・(8)
また、実施の形態1では、非常止め装置17を作動させるために必要な力Fsを調整するために捻りばね23を用いたが、適当な力Fsを得ることができれば、必ずしもばね等を追加しなくてもよく、また、追加する場合、捻りばねに限定されるものではない。
さらに、破断検出手段は、破断検出スイッチ37に限定されるものではなく、またその設置位置もかご室15の上部に限定されない。
さらにまた、質量体や抵抗力付加装置の構成も実施の形態1に限定されるものではない。
Claims (5)
- かご、
前記かごを吊り下げる懸架手段、
前記懸架手段を介して前記かごを昇降させる駆動装置、
前記かごの昇降を案内するかごガイドレール、
前記かごに搭載され、前記かごガイドレールに係合して前記かごを非常停止させる非常止め装置、
前記かごの動きに関連して動作する質量体を有しており、予め設定された設定値を超える加速度が前記かごに発生した場合に、前記質量体に発生する慣性力を利用して前記非常止め装置を作動させる異常加速度検出機構、
前記懸架手段の破断を検出する破断検出手段、及び
前記破断検出手段により前記懸架手段の破断が検出されていないときに、前記非常止め装置を作動させるための機構に抵抗力を与え、前記破断検出手段により前記懸架手段の破断が検出されると前記抵抗力を減少させる抵抗力付加装置
を備えているエレベータ装置。 - 前記破断検出手段は、前記懸架手段の破断により操作される破断検出スイッチであり、
前記抵抗力付加装置は、電磁アクチュエータであり、
前記破断検出スイッチが操作されると、前記電磁アクチュエータへの通電が遮断され、前記電磁アクチュエータによる抵抗力が解除される請求項1記載のエレベータ装置。 - 前記非常止め装置には、回動されることにより前記非常止め装置を作動させる作動レバーが設けられており、
前記抵抗力付加装置は、前記作動レバーに回転抵抗力を与える請求項1記載のエレベータ装置。 - 前記質量体は、昇降路内に環状に敷設されたロープと、前記ロープが巻き掛けられた綱車とを有している請求項1記載のエレベータ装置。
- 前記かごの過速度を検出する調速機をさらに備え、
前記ロープが巻き掛けられた綱車は、前記調速機に設けられた調速機シーブであり、
前記ロープは、調速機ロープである請求項4記載のエレベータ装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012006231.0T DE112012006231T5 (de) | 2012-04-16 | 2012-04-16 | Aufzugsvorrichtung |
JP2014510983A JP5726374B2 (ja) | 2012-04-16 | 2012-04-16 | エレベータ装置 |
KR1020147028796A KR101617572B1 (ko) | 2012-04-16 | 2012-04-16 | 엘리베이터 장치 |
PCT/JP2012/060244 WO2013157069A1 (ja) | 2012-04-16 | 2012-04-16 | エレベータ装置 |
US14/380,753 US9637348B2 (en) | 2012-04-16 | 2012-04-16 | Elevator apparatus |
CN201280072398.9A CN104220355B (zh) | 2012-04-16 | 2012-04-16 | 电梯装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2012/060244 WO2013157069A1 (ja) | 2012-04-16 | 2012-04-16 | エレベータ装置 |
Publications (1)
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WO2013157069A1 true WO2013157069A1 (ja) | 2013-10-24 |
Family
ID=49383059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/060244 WO2013157069A1 (ja) | 2012-04-16 | 2012-04-16 | エレベータ装置 |
Country Status (6)
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US (1) | US9637348B2 (ja) |
JP (1) | JP5726374B2 (ja) |
KR (1) | KR101617572B1 (ja) |
CN (1) | CN104220355B (ja) |
DE (1) | DE112012006231T5 (ja) |
WO (1) | WO2013157069A1 (ja) |
Cited By (5)
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US20130220739A1 (en) * | 2010-11-01 | 2013-08-29 | Mitsubishi Electric Corporation | Elevator apparatus |
WO2017103969A1 (ja) * | 2015-12-14 | 2017-06-22 | 三菱電機株式会社 | エレベータ装置 |
CN107074489A (zh) * | 2014-09-22 | 2017-08-18 | 三菱电机株式会社 | 电梯装置 |
KR20180072743A (ko) | 2015-11-26 | 2018-06-29 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터 칸의 비상 멈춤 장치 |
CN113800357A (zh) * | 2021-09-30 | 2021-12-17 | 镇江朝阳机电科技有限公司 | 用于高速梯下行的超速保护装置及其方法 |
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JP6012596B2 (ja) * | 2011-04-01 | 2016-10-25 | 三菱電機株式会社 | エレベータ装置 |
CN104684834B (zh) * | 2012-09-25 | 2017-10-20 | 奥的斯电梯公司 | 低顶部或低底坑电梯的补偿措施 |
CN106103328B (zh) * | 2014-02-21 | 2019-10-08 | 沃泰克电梯产品与服务公司 | 临时电梯装置 |
WO2017094102A1 (ja) * | 2015-12-01 | 2017-06-08 | 三菱電機株式会社 | エレベータ装置 |
KR102250001B1 (ko) * | 2017-01-13 | 2021-05-11 | 미쓰비시덴키 가부시키가이샤 | 파단 검지 장치 |
CN107840217B (zh) * | 2017-09-28 | 2019-06-18 | 快意电梯股份有限公司 | 升降器加速度补偿控制方法及装置 |
CN107601235B (zh) * | 2017-09-28 | 2019-06-18 | 快意电梯股份有限公司 | 升降器加速度补偿控制系统 |
CN107826930A (zh) * | 2017-12-05 | 2018-03-23 | 余廷栋 | 一种电梯防坠落系统 |
US20190234985A1 (en) * | 2018-01-31 | 2019-08-01 | Otis Elevator Company | Magnetic speed detection device |
US11535492B2 (en) * | 2019-01-10 | 2022-12-27 | Safeworks, Llc | Overspeed safety mechanism for lift car |
JP7178590B2 (ja) * | 2019-07-31 | 2022-11-28 | パナソニックIpマネジメント株式会社 | エレベータ装置 |
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- 2012-04-16 US US14/380,753 patent/US9637348B2/en active Active
- 2012-04-16 JP JP2014510983A patent/JP5726374B2/ja active Active
- 2012-04-16 CN CN201280072398.9A patent/CN104220355B/zh active Active
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US20130220739A1 (en) * | 2010-11-01 | 2013-08-29 | Mitsubishi Electric Corporation | Elevator apparatus |
US9505587B2 (en) * | 2010-11-01 | 2016-11-29 | Mitsubishi Electric Corporation | Elevator with acceleration detection |
CN107074489A (zh) * | 2014-09-22 | 2017-08-18 | 三菱电机株式会社 | 电梯装置 |
CN107074489B (zh) * | 2014-09-22 | 2019-03-19 | 三菱电机株式会社 | 电梯装置 |
KR20180072743A (ko) | 2015-11-26 | 2018-06-29 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터 칸의 비상 멈춤 장치 |
DE112015007155T5 (de) | 2015-11-26 | 2018-08-09 | Mitsubishi Electric Corporation | Notfall-stoppvorrichtung für eine aufzugskabine |
WO2017103969A1 (ja) * | 2015-12-14 | 2017-06-22 | 三菱電機株式会社 | エレベータ装置 |
JPWO2017103969A1 (ja) * | 2015-12-14 | 2018-03-29 | 三菱電機株式会社 | エレベータ装置 |
CN113800357A (zh) * | 2021-09-30 | 2021-12-17 | 镇江朝阳机电科技有限公司 | 用于高速梯下行的超速保护装置及其方法 |
Also Published As
Publication number | Publication date |
---|---|
CN104220355A (zh) | 2014-12-17 |
DE112012006231T5 (de) | 2015-01-15 |
KR101617572B1 (ko) | 2016-05-02 |
CN104220355B (zh) | 2016-07-06 |
JP5726374B2 (ja) | 2015-05-27 |
US9637348B2 (en) | 2017-05-02 |
JPWO2013157069A1 (ja) | 2015-12-21 |
US20150041256A1 (en) | 2015-02-12 |
KR20140138938A (ko) | 2014-12-04 |
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