EP2617672A1 - Régulateur de vitesse pour ascenseur - Google Patents

Régulateur de vitesse pour ascenseur Download PDF

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Publication number
EP2617672A1
EP2617672A1 EP10857275.1A EP10857275A EP2617672A1 EP 2617672 A1 EP2617672 A1 EP 2617672A1 EP 10857275 A EP10857275 A EP 10857275A EP 2617672 A1 EP2617672 A1 EP 2617672A1
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EP
European Patent Office
Prior art keywords
sheave
stopper
fly
speed
weight
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.)
Granted
Application number
EP10857275.1A
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German (de)
English (en)
Other versions
EP2617672B1 (fr
EP2617672A4 (fr
Inventor
Akihide Shiratsuki
Takeshi Niikawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2617672A1 publication Critical patent/EP2617672A1/fr
Publication of EP2617672A4 publication Critical patent/EP2617672A4/fr
Application granted granted Critical
Publication of EP2617672B1 publication Critical patent/EP2617672B1/fr
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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
    • B66B5/02—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
    • 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 governor.
  • an overspeed detection mechanism set so as to be adapted to the descent speed of the car operates also during the ascent of the car. For this reason, it is impossible to perform overspeed detection adapted to each of the ascent speed and the descent speed of the car.
  • Patent Document 1 Japanese Patent Laid-Open No. 2000-327241
  • the present invention was made to solve the problems described above, and the object of the invention is to provide an elevator governor capable of achieving, with a simple configuration, an overspeed detection mechanism to which rotation dependence is added while preventing a decrease in reliability due to the generation of vibrations and noises and the wear of parts.
  • An elevator governor of the present invention includes a sheave on which a rope moving in response to the movement of an ascending and descending body of an elevator is wound, and which changes the rotation speed in one direction in response to the ascent speed of the ascending and descending body and changes the rotation speed in the other direction in response to the descent speed of the ascending and descending body; a fly-weight which is provided on a side surface of the sheave and increases and decreases a moving quantity to a radial outer side of the sheave in response to an increase and decrease in the rotation speed of the sheave; a detector which performs overspeed detection of the sheave when the fly-weight has moved to the radial outer side by a predetermined quantity; a stopper which is provided in the sheave and performs a rotational movement with respect to the sheave so as to be arranged to the radial outer side of the fly-weight in the case where the sheave rotates in a predetermined direction which is either of the two rotational directions, thereby preventing the
  • the shaft of an elevator is formed from a space extending in the vertical direction through the floors of a building.
  • a machine room is provided in the upper part of the haft.
  • a traction machine is provided in the machine room.
  • a hoisting rope is wound on the traction machine.
  • a car of the elevator is suspended at an end of the hoisting rope.
  • a weight is suspended at the other end of the hoisting rope.
  • the rotation of the traction machine is controlled by a controller. The car and the weight ascend and descend at a set speed by responding to the rotation of the traction machine.
  • a safety gear device is provided in the lower part of the car.
  • An endless governor rope is connected to the safety gear device via an arm.
  • a curved portion at the lower end of the governor rope is wound on a tension pulley.
  • a curved portion at the upper end of the governor rope is wound on a sheave of the governor provided in the machine room and the like.
  • FIG 1 is a front view of an elevator governor in Embodiment 1 of the present invention.
  • Figure 2 is a sectional view taken along line A-A of Figure 1 .
  • reference numeral 1 denotes a governor.
  • the governor 1 is provided with a sheave 2.
  • the sheave 2 is pivotally supported on a main shaft 3.
  • a governor rope 4 is wound on the sheave 2.
  • the governor rope 4 is attached to a car in an endless manner.
  • the governor rope 4 moves in response to the movement of the car.
  • the governor rope 4 rotates the sheave 2 in response to the ascent and descent of the car. That is, the sheave 2 changes the rotation speed in one direction according to the ascent speed of the car and changes the rotation speed in the other direction according to the descent speed of the car.
  • a pair of disk type fly-weights 5 is rotatably provided on a side surface of the sheave 2 via a pin 6. Both of the fly-weights 5 increase and decrease the moving quantity to the radial outer side of the sheave 2 along the side surface of the sheave 2 as a result of an increase and decrease in the rotation speed of the sheave 2. Both of the fly-weights 5 are connected by a link 7. As a result of this, the two fly-weights 5 have the same rotational angle.
  • a balance spring 9 is provided at an end of one of the fly-weights 5 via a link 8. This balance spring 9 constantly urges either of the fly-weights 5 to the center side of the sheave 2.
  • a spring force adjusting nut 10 is provided in the link 8. The spring force adjusting nut 10 adjusts the urging force of the balance spring 9.
  • a dog 11 is provided at an end of the other fly-weight 5 in such a manner as to be directed to the radial outer side of the sheave 2.
  • An actuating cam 12 is provided in proximity to the side of one side portion of the sheave 2.
  • the actuating cam 12 is provided in a governor switch 13.
  • the governor switch 13 comes into action when the actuating cam 12 moves up and down.
  • a rope catch 14 is provided in proximity to the governor rope 4 on the side where the car is mounted.
  • the rope catch 14 is suspended by being caught by the lower end of a hook 15.
  • This hook 15 is pivotally supported in the center via a pin 16.
  • a fixed shoe 17 is provided on a side opposed to the rope catch 14. As a result of this, the governor rope 4 is surrounded by the rope catch 14 and the fixed shoe 17 below one side portion of the sheave 2.
  • a stopper 18 is provided.
  • the main body of this stopper 18 is rotatably provided in the main shaft 3.
  • a pair of locking notched portions 19 is provided in the main body of the stopper 18.
  • the end portions of the locking notched portions 19 on the center side of the sheave 2 are connected by a connecting notched portion 20.
  • the connecting notched portion 20 is formed in the shape of a circular arc, with the main shaft 3 serving as the center.
  • One end 22 of a lever 21 is inserted in such a manner as to be freely movable along the connecting notched portion 20.
  • the other end 23 of the lever 21 is pivotally supported by the sheave 2.
  • a pin 24 is provided in the sheave 2 in such a manner as to protrude to the stopper 18 side. Also in the lever 21, a pin 25 is provided in such a manner as to protrude to the sheave 2 side. Between the pins 24 and 25, there is provided a helical tension spring 26. The helical tension spring 26 constantly urges the lever 21 to the center side of the sheave 2.
  • Figures 3 to 5 are front views showing the essential parts of the elevator governor in Embodiment 1 of the present invention.
  • the dog 11 at the forward end of the fly-weight 5 abuts against the actuating cam 12.
  • This abutment causes the governor switch 13 to operate. That is, the actuating cam 12 and the governor switch 13 function as a detector which performs the overspeed detection of the sheave 2 when the fly-weight 5 has moved to the outer side by a predetermined quantity regardless of the ascent and descent of the car.
  • the power to the traction machine and brake of the elevator is interrupted by the operation of the governor switch 13. Usually, the car stops due to this interruption.
  • the mass of the lever 21 and the spring constant of the helical tension spring 26 are determined so that the lever 21 moves to the radial outer side of the sheave 2 when the rotation speed of the sheave 2 has exceeded a predetermined threshold value.
  • the stopper 18 is pressed against one end 22 of the lever 21 in the rotational direction of the sheave 2. As a result of this, the stopper 18 rotates together with the sheave 2.
  • the ascent direction exceeds the rated speed and the fly-wheel 2 is almost about to move to the radial outer side of the sheave 5.
  • a protruding end of the stopper 18 is arranged on the radial outer side of the sheave 2 with respect to the fly-weight 5. For this reason, the fly-weight 5 interferes with the protruding end of the stopper 18 when the fly-weight 5 moves outside more than the predetermined quantity.
  • the fly-weight 5 can scarcely move to the radial outer side of the sheave 2. That is, even when the ascent speed of the car has reached a first overspeed detection speed, the dog 11 at the forward end of the fly-weight 5 does not abut against the actuating cam 12. For this reason, the governor switch 13 does not operate, either.
  • the stopper 18 is almost about to rotate at an almost constant speed by the law of inertia even when the sheave 2 has decelerated. For this reason, as shown in Figure 4 , the stopper 18 rotates relatively with respect to the sheave 2. Subsequently, when the car has accelerated in the descent direction, the stopper 18 is pressed by one end 22 of the lever 21. As a result of this, the stopper 18 rotates together with the sheave 2.
  • Figure 6 is a block diagram of a malfunction detection device which is used in the elevator governor in Embodiment 1 of the present invention.
  • an encoder 27 is provided in the vicinity of the main shaft 3 of the governor 1.
  • the encoder 27 functions as rotational position detection means which outputs a pulse signal responding to the rotational direction of the sheave 2 when the sheave 2 has moved to a prescribed rotational position.
  • the pulse signal is inputted to a malfunction detection device 28.
  • the malfunction detection device 28 is provided with a proximity sensor 29 and a stopper position detection part 30.
  • the proximity sensor 29 is arranged just above the sheave 2.
  • the proximity sensor 29 is formed from a distance sensor of the eddy current type, the optical type, and the electrostatic capacity type and the like.
  • an area in a prescribed range below the proximity sensor 29 is the detection region.
  • the proximity sensor 29 functions as object detection means which outputs a detection signal in the case where an object is present in the detection region.
  • Angular position information of the stopper 18 during the rotation of the governor 1 in the ascent direction is stored beforehand in the stopper position detection part 30.
  • Angular position information of the stopper 18 during the rotation of the governor 1 in the descent direction is stored beforehand in the stopper position detection part 30.
  • the stopper position detection part 30 functions as determination means which makes a determination as to whether or not the stopper 18 is in a prescribed position on the basis of the rotational position of the sheave 2 during the detection of the stopper 18 by the proximity sensor 29.
  • the stopper 18 prevents the fly-weight 5 from moving to the radial outer side of the sheave 2 more than the predetermined quantity while the sheave 2 is rotating in a predetermined direction which is either of the two rotational directions. For this reason, it is possible to provide an elevator governor capable of achievineg, with a simple configuration, an overspeed detection mechanism to which rotation dependence is added while preventing a decrease in reliability due to the generation of vibrations and noises and the wear of parts.
  • the main body of the stopper 18 is held by the lever 21. on the radial outer side of the sheave 2 with respect to the fly-weight 5.
  • the main body of the stopper 18 is held by the lever 21 on the radial outer side of the sheave 2 with respect to the fly-weight 5.
  • the threshold value of the rotation speed of the sheave 2 for which one end 22 of the lever 21 moves to the radial outer side of the sheave 2 be set beforehand to the order of a half of the rated speed of the ascent and descent speeds of the car, whichever is lower. In this case, it is possible to effectively prevent unintended overspeed detection. Performing overspeed detection only when the car is running in the ascent direction of the car, can be accomplished by configuring the stopper 18 so that the movement of the fly-weight 5 is not prevented while the sheave 2 is rotating in the ascent direction of the car.
  • the malfunction detection device 28 makes a determination on the position of the stopper 18. For this reason, it is possible to detect malfunctions of the stopper 18.
  • FIG. 7 is a block diagram of a malfunction detection device used in an elevator governor in Embodiment 2 of the present invention. Incidentally, parts which are the same as in Embodiment 1 or similar to those of Embodiment 1 bear the same reference characters and descriptions of such parts are omitted.
  • a disk of the sheave 2 of Embodiment 2 is provided with reference plates 31a, 31b.
  • the reference plates 31a, 31b are arranged in positions shifted 180 degrees from the center of the sheave 2 as the standard.
  • a stopper 18a which operated correctly is arranged in a position shifted 30 degrees from the reference plate 31a (in a position shifted 150 degrees form the reference plate 3 1b), with the center of the sheave 2 serving as the standard.
  • a stopper 18b which operated correctly is arranged in a position shifted 30 degrees from the reference plate 31b (in a position shifted 150 degrees form the reference plate 31a), with the center of the sheave 2 serving as the standard
  • the stopper 18a which operated correctly is arranged in a position shifted 60 degrees from the reference plate 31a (in a position shifted 120 degrees form the reference plate 31 b), with the center of the sheave 2 serving as the standard.
  • the stopper 18b which operated correctly is arranged in a position shifted 60 degrees from the reference plate 3 1b (in a position shifted 120 degrees form the reference plate 31a), with the center of the sheave 2 serving as the standard.
  • a malfunction detection device 32 of Embodiment 2 is provided with a proximity sensor part 33, a stopper position detection part 34, and a stopper position determination part 35.
  • the proximity sensor part 33 detects the stoppers 18a, 18b and the reference plates 31 a, 31 b.
  • the stopper position detection part 34 detects the positions of the stoppers 18a, 18b with respect to the sheave 2.
  • the stopper position determination part 35 makes a determination on the rotational direction of the sheave 2.
  • the stopper position determination part 35 makes a determination as to whether or not the stoppers 18a, 18b are in correct positions with respect to the rotational direction of the sheave 2.
  • Figure 8 is a diagram to explain an example of signal output of the encoder 27 used in the elevator governor in Embodiment 2 of the present invention.
  • the abscissa of Figure 8 indicates time.
  • the ordinate of Figure 8 indicates the output of the proximity sensor part 33.
  • Figure 8 shows the case where the sheave 2 is rotating in the decent direction.
  • the reference plate 31a is detected.
  • the time interval at this time is denoted by t0.
  • the stopper 18b is detected.
  • the time interval at this time is denoted by t1.
  • the sheave 2 has rotated 60 degrees by taking time t0
  • the reference plate 31 b is detected.
  • the stopper 18a is detected again.
  • Embodiment 2 a determination is made as to whether or not the stoppers 18a, 18b are in correct positions on the basis of the rotational position and rotational direction of the sheave 2 during the detection of the stoppers 18a, 18b. For this reason, it is possible to positively detect malfunctions of the stoppers 18a, 18b.
  • the number of times of object detection by the proximity sensor part 33 during one rotation of the sheave 2 is uniquely determined by the installed number of the stoppers 18a, 18b and the reference plates 31a, 31b. Using this fact, it is possible to provide signal output means which outputs a malfunction signal in the case where the number of times of object detection by the proximity sensor part 33 during one rotation of the sheave 2 is different from a total number of the stoppers 18a, 18b and the reference plates 31a, 31b. It is possible to make a determination, from a malfunction signal, that a malfunction, of the proximity sensor part 33 and an abnormal operation of the governor 1 occurred.
  • prohibition means which prohibits a determination on the positions of the stoppers 18a, 18b in the case where the rotation speed of the sheave 2 is lower than the speed at which the fly-weight 5 is moved to the radial outer side by a prescribed quantity. In this case, it is possible to suppress an unnecessary detection action.
  • signal output means which outputs a malfunction signal in the case where the rotation speed of the sheave 2 is higher than the speed at which the fly-weight 5 is moved to the radial outer side by a prescribed quantity and the stoppers 18a, 18b are not in correct positions. It is possible to make a determination, from a malfunction signal, that a malfunction of the stoppers 18a, 18b and a wrong detection of the malfunction detection device 32 occurred.
  • a malfunction signal may include information for bringing a brake installed in the traction machine driving the elevator into action. If a control device of the elevator brings the brake into action on the basis of a malfunction signal, it is possible to stop the elevator. As a result of this, it is possible to improve the safety of the elevator.
  • Figure 9 is a front view showing the essential part of an elevator governor in Embodiment 3 of the present invention. Incidentally, parts which are the same as in Embodiment 1 or corresponding pats bear like numerals and descriptions of these parts are omitted.
  • Embodiment 1 all of the locking notched portion 19 of the stopper 18, the connecting notched 20, the lever 21, the pins 24, 25, and the helical tension spring 26 are provided in a quantity of one.
  • Embodiment 3 all of the locking notched portion 19 of the stopper 18, the connecting notched 20, the lever 21, the pins 24, 25, and the helical tension spring 26 are provided symmetrically with respect to the main shaft 3 in a plurality of numbers.
  • Figure 10 is a front view of an elevator governor in Embodiment 4 of the present invention.
  • Figure 11 is a sectional view taken along line B-B of Figure 10 .
  • parts which are the same as in Embodiment 1 or similar to those of Embodiment 1 bear the same reference characters and descriptions of such parts are omitted.
  • the governor 1 of Embodiment 4 differs from the governor of Embodiment 1 in the configuration of the fly-weight, the shape of the stopper 18 and the like.
  • the governor 1 of Embodiment 4 will be described below.
  • reference numeral 36 denotes a pair of linear motion bearings.
  • the linear motion bearings 36 are each attached to a side surface of the sheave 2 via a fixed portion 37.
  • a fly-weight 38 is inserted into the linear motion bearing 36.
  • the linear motion bearing 36 may be a sliding bearing using sliding friction or a ball and roller bearing using the frictions of balls and rollers.
  • a spring force adjusting nut 39 is provided in the fly-weight 38.
  • a balance spring 40 is provided between the spring force adjusting nut 39 and the fixed portion 37. The balance spring 40 constantly urges the fly-weight 38 to the center side of the sheave 2.
  • the fly-weight 38 receives a centrifugal force responding to the rotation speed of the sheave 2. While the car is ascending and descending within a rated speed, the force by the balance spring 40 is larger than the centrifugal force applied to the fly-weight 38. For this reason, the relative position of the fly-weight 38 and the sheave 2 does not change from the initial set state.
  • the forward end of the fly-weight 38 abuts against the actuating cam 12.
  • This abutment causes the governor switch 13 to operate. That is, the actuating cam 12 and the governor switch 13 function as a detector which performs the overspeed detection of the sheave 2 when the fly-weight 38 has moved to the outer side by a predetermined quantity regardless of the ascent and descent of the car.
  • the power to the traction machine and brake of the elevator is interrupted by the operation of the governor switch 13. Usually, the car stops due to this interruption.
  • Embodiment 4 described above it is possible to achieve an overspeed detection mechanism having the same effect as in Embodiment 1 to which rotation dependence is added even when the disk type fly-weights 5 are not used.
  • Figure 12 is a view of an elevator governor in Embodiment 5 of the present invention, which is equivalent to Figure 11 .
  • parts which are the same as in Embodiment 4 or corresponding pats bear like numerals and descriptions of these parts are omitted.
  • Embodiment 4 one overspeed detection mechanism is provided, whereas in Embodiment 5 two overspeed detection mechanisms are provided.
  • the overspeed detection mechanisms operate independently from each other.
  • the governor 1 of Embodiment 5 will be described with the aid of Figure 9 .
  • reference numeral 41 denotes a rotary body.
  • the rotary body 41 is fixed to one side surface of the sheave 2. That is, the rotary body has the function of rotating together with the sheave 2.
  • One overspeed detection mechanism is provided on the other side surface.
  • One overspeed detection mechanism is provided with a stopper 18 similar to that of Embodiment 3.
  • the other overspeed detection mechanism is provided on one side surface of the rotary body 41.
  • the other overspeed detection mechanism is not provided with a stopper 18.
  • One overspeed detection mechanism is set to match a rated speed in the descent direction of the car.
  • One overspeed detection mechanism is such that the operation thereof is limited by the stopper 18 during the ascent of the car before the speed becomes higher than the rated speed in the descent direction of the car.
  • the other overspeed detection mechanism is set to match a rated speed in the ascent direction of the car.
  • This governor 1 is provided in an elevator in which the ascent direction of the car is higher than the descent speed.
  • Embodiment 5 in an elevator in which the ascent direction of the car is higher than the descent speed, it is possible to perform overspeed detection adapted to each of the ascent speed and the descent speed.
  • the detection speed of the overspeed detection mechanism whose operation is limited by the stopper 18 is set to match a rated speed in the ascent direction of the car, and the governor 1 whose operation is not limited by the stopper 18 is set to be adaptable to a rated speed in the descent direction of the car.
  • Embodiments 1 to 5 the description was given of the configurations in which the stopper 18 is provided in the car-side governor 1. However, the same effect as in Embodiments 1 to 5 is obtained even when the stopper 18 is provided in the weight-side governor 1.
  • the elevator governor of the present invention can be used in an elevator in which, with a simple configuration, is achieved an overspeed detection mechanism to which rotation dependence is added while preventing a decrease in reliability due to the generation of vibrations and noises and the wear of parts.
EP10857275.1A 2010-09-17 2010-09-17 Régulateur de vitesse pour ascenseur Active EP2617672B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/066126 WO2012035641A1 (fr) 2010-09-17 2010-09-17 Régulateur de vitesse pour ascenseur

Publications (3)

Publication Number Publication Date
EP2617672A1 true EP2617672A1 (fr) 2013-07-24
EP2617672A4 EP2617672A4 (fr) 2018-01-24
EP2617672B1 EP2617672B1 (fr) 2018-11-28

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EP10857275.1A Active EP2617672B1 (fr) 2010-09-17 2010-09-17 Régulateur de vitesse pour ascenseur

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EP (1) EP2617672B1 (fr)
JP (1) JP5472473B2 (fr)
KR (1) KR101398725B1 (fr)
CN (1) CN103118965B (fr)
WO (1) WO2012035641A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11034546B2 (en) 2018-06-28 2021-06-15 Otis Elevator Company Elevator governor

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CN106132860B (zh) * 2014-04-16 2018-08-03 株式会社日立制作所 电梯装置
JP6092344B1 (ja) * 2015-11-02 2017-03-08 東芝エレベータ株式会社 エレベータのガバナ装置
JP6552954B2 (ja) * 2015-12-10 2019-07-31 株式会社日立製作所 エレベーター装置
CN114961371A (zh) * 2022-06-11 2022-08-30 北京首嘉钢结构有限公司 一种垂直升降类立体车库的限速装置
CN115140627B (zh) * 2022-07-27 2024-01-19 苏州富士精工电梯有限公司 一种电梯限速器测量装置
CN115285810A (zh) * 2022-09-30 2022-11-04 江苏顺捷机电工程有限公司 电梯运行预警方法及应用该方法的人体互通电梯系统

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JP4306014B2 (ja) * 1999-05-17 2009-07-29 三菱電機株式会社 調速装置
CN100569619C (zh) * 2004-10-07 2009-12-16 三菱电机株式会社 电梯用限速器
JP4836437B2 (ja) * 2004-11-19 2011-12-14 東芝エレベータ株式会社 エレベータの調速機。
WO2006090453A1 (fr) * 2005-02-24 2006-08-31 Mitsubishi Denki Kabushiki Kaisha Regulateur pour ascenseur
JP4905360B2 (ja) * 2006-05-22 2012-03-28 三菱電機株式会社 エレベータ用調速機
CN101522554B (zh) * 2006-10-18 2011-11-23 三菱电机株式会社 电梯限速装置以及电梯装置
CN102131726B (zh) * 2008-08-28 2013-05-22 三菱电机株式会社 电梯用限速器

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11034546B2 (en) 2018-06-28 2021-06-15 Otis Elevator Company Elevator governor

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Publication number Publication date
JP5472473B2 (ja) 2014-04-16
KR20130103533A (ko) 2013-09-23
EP2617672B1 (fr) 2018-11-28
WO2012035641A1 (fr) 2012-03-22
EP2617672A4 (fr) 2018-01-24
KR101398725B1 (ko) 2014-05-27
CN103118965B (zh) 2015-03-25
JPWO2012035641A1 (ja) 2014-01-20
CN103118965A (zh) 2013-05-22

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