EP2855327B1 - Dämpfungseinheit für einen aufzug - Google Patents

Dämpfungseinheit für einen aufzug Download PDF

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Publication number
EP2855327B1
EP2855327B1 EP13724609.6A EP13724609A EP2855327B1 EP 2855327 B1 EP2855327 B1 EP 2855327B1 EP 13724609 A EP13724609 A EP 13724609A EP 2855327 B1 EP2855327 B1 EP 2855327B1
Authority
EP
European Patent Office
Prior art keywords
damping unit
brake shoe
brake
unit according
brake shoes
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.)
Not-in-force
Application number
EP13724609.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2855327A1 (de
Inventor
Hans Kocher
Lorenz ETZWEILER
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP13724609.6A priority Critical patent/EP2855327B1/de
Publication of EP2855327A1 publication Critical patent/EP2855327A1/de
Application granted granted Critical
Publication of EP2855327B1 publication Critical patent/EP2855327B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
    • B66B11/0293—Suspension locking or inhibiting means to avoid movement when car is stopped at a floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/34—Safe lift clips; Keps
    • 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

Definitions

  • the invention relates to a damping unit for an elevator.
  • Lifts contain cabs which are movable via suspension means, for example in the form of suspension ropes or carrying straps, by means of a drive unit in an elevator shaft.
  • suspension means for example in the form of suspension ropes or carrying straps
  • drive unit in an elevator shaft.
  • guide rails are fixed, which specify a linear guide for the elevator car.
  • Persons or goods that enter or leave the elevator car during a car standstill cause undesirable vertical vibrations of the car due to the elasticity of the suspension elements.
  • Such vertical vibrations occur in particular on lifts on suspension straps based on suspension, which enjoy in recent times growing popularity. Since belts have a less favorable vibration behavior compared to steel cables, the vertical vibrations increasingly affect the comfort feeling of the passengers and the operational safety.
  • the device has a brake caliper, which can be pressed against the guide rail via a toggle mechanism. At the front ends of the lever of the brake caliper brake shoes are arranged. This device causes a frictional caused more or less rigid adherence of the car to the guide rails. In practice, however, it has been found that such retaining devices are demanding in terms of the control technology. In particular, it is difficult or expensive to operate the elevator in such a way that after the cabin stoppage the car can start smoothly.
  • a damping unit for the reduction of vertical vibrations of the car in standstill phases shows, for example, the EP 1 424 302 A1 .
  • the damping unit has an approximately half the cabin depth extending lever arm, at the free end of a pivotally mounted brake shoes is arranged.
  • the damping unit is mechanically coupled to a door opening unit of the cabin; this activatable via the door drive damping unit requires a complicated Lever and transmission mechanism, which is why this solution is expensive and prone to failure.
  • the device can not be retrofitted into existing existing older elevator systems. Another disadvantage then is that the damping behavior of the cabin does not meet higher demands in terms of ride comfort and reliability.
  • the damping unit should also be suitable for installation in existing systems. Such a retrofit of the elevator installation should be possible simply and with comparatively low costs.
  • the preferably equipped with two brake shoes damping unit includes brake shoe holder, which are operatively connected to move the brake shoes with an actuator.
  • the brake shoes are movable in a rest position during a cabin ride contactless along a guide rail. After activation of the actuator, which is geared to the brake shoe holders, the brake shoes held by the brake shoe holders are pressed against the guide rail during the car stoppage in an active position.
  • the damping unit further comprises a housing or other support structure (for example in the form of a simple support plate) for the brake shoe holder.
  • the spring device is designed as a bending spring made of metal.
  • the spiral spring can be designed such that it can only be deflected in two dimensions. Bending springs also have the advantage that they are easily connectable both to the support structure and to the cab. Bend springs can also be produced easily and inexpensively. Finally, bending springs can be optimally adapted to the desired degrees of freedom.
  • the spring device is formed by a cross-sectionally approximately C-shaped box-like profile.
  • a C-profile With such a C-profile, the desired two-dimensionally resilient mounting of the support structure can be achieved in an advantageous manner.
  • the C-shaped profile can be arranged or positioned in the damping unit such that the profile longitudinal direction of the C-profile runs parallel to the braking surfaces of the brake shoes.
  • a further advantage of such a spring device is that the cavity predetermined by the C can be used to completely or partially accommodate a guide shoe, as a result of which compact elevator cars with comparatively low overall heights can be realized.
  • the spring device may have a fastening section on or resting on the carrier structure for fastening the carrier structure and two side walls which are opposite each other and preferably adjoin the attachment section approximately at right angles. Next can connect to the side walls in each case parallel to the attachment portion extending end portions, via which the damping unit can be fastened to the cabin.
  • the end portions may have attachment means for attaching the spring unit to the cabin, for example in the form of holes for receiving screws.
  • each brake shoe is supported in each case via at least one spring element resiliently on the respective brake shoe holder.
  • the additional cushioning of the brake shoes results in a further optimized behavior of the cabin during standstill phases.
  • spring elements are in particular metallic spring means.
  • the spring element may be a helical compression spring.
  • the damping unit may have one, two or even a plurality of helical compression springs per brake shoe.
  • the brake shoes are arranged limitedly displaceable on the brake shoe holders.
  • To limit the displacement of the brake shoe holder may be equipped with appropriate stops.
  • the brake shoes can be attached to support elements or rest on these.
  • the support elements may be made of a metallic material, for example made of steel.
  • the spring elements can abut the support elements on one side.
  • the spring elements can abut on one side on the brake shoe holders and on the other side on the support elements.
  • the actuator comprises a preferably electrically driven motor.
  • This motor can be configured, for example, as a stepping motor with which the desired pressing force for reducing the vertical vibrations of the cabin can be adjusted with high precision.
  • the damping unit for moving both brake shoes has a common motor with which the brake shoe holder are preferably simultaneously, but in the opposite direction movable.
  • the damping unit may have a carrier structure formed, for example, by a housing, on which the brake shoe holders are arranged and preferably mounted displaceably. In the latter case, the direction of displacement would be transverse to the running or driving direction of the cabin.
  • the damping unit may comprise an eccentric arrangement, via which the brake shoes are movable back and forth. Thanks to the eccentric arrangement can be adjusted in a particularly simple and efficient way, the rest position and active position of the brake shoe holder.
  • the eccentric mechanism allows precise and at the same time simple loading of the braking surface with a pressing force with high power transmission to reduce the vertical vibrations of the elevator car in standstill phases, which small actuators (eg electric motor) can be used.
  • An advantageous geared connection between brake shoe holders and actuator results when the actuator is connected via a gear transmission with the brake shoe holders.
  • the gear transmission may be formed, for example, as a spur gear and have a subsequent to a drive shaft of the motor and rotatably connected thereto central drive gear. Further, the gear transmission may have two eccentric gears, each associated with an eccentric gear each having a brake shoes. Depending on the rotational position of the centrally via the drive gear driven eccentric gears, the rest position or active position for the brake shoes can be specified.
  • the eccentric gears may have eccentrically arranged trunnions (i.e., each eccentric gear each has a journal) which respectively engage in bearing seats of the brake shoes for moving the brake shoe holders.
  • the journals indicate the rest position or the active position.
  • the invention may further be directed to an elevator with a cabin and with at least one damping unit in the manner of the previously described damping unit.
  • the spring unit is arranged between the support structure and the cabin and to a certain extent forms a resilient interface of the damping unit to the cabin.
  • FIG. 1 shows an elevator with a vertically movable up and down cabin 2 for the transport of persons or goods.
  • a support means for moving the car 2 are exemplary configured as a belt or ropes support means 34.
  • the elevator system has two in the vertical direction z extending guide rails 3.
  • Each guide rail 3 has three guide surfaces extending in the direction of travel of the car.
  • At the cabin 2 are in FIG. 1 attached as an example as roller guide shoes designed guide shoes.
  • the damping unit designated 1 unwanted vertical vibrations of the cabin can be reduced during a standstill. Such vertical vibrations occur when people enter or leave the cabin 2.
  • the change in load causes the car 2 to vibrate. This phenomenon is particularly pronounced in sling-based elevators with high shaft heights.
  • With z the direction is indicated, in which the guide rail extends, the arrow z also indicates the direction of travel of the car 2 at.
  • the elevator installation has damping units 1 arranged on both sides of the cabin 2.
  • the two damping units 1 can be controlled via a (not shown) control device.
  • the control device sends a control command to the damping units as soon as the car stops, for example, or when the car door opens. Activation will usually take so long maintained until the doors are closed again and thus no significant load changes are possible. During activation, the controller may continue to send control commands to the damping units.
  • the damping units 1 are mounted at the top of the car 2, being placed separately from the upper guide shoes 14.
  • the guide shoes and damping units can also be combined or arranged with each other in other ways.
  • the at least one damping unit could also be mounted at the bottom of the cabin.
  • the damping unit may be attached to a console that includes the guide shoe 15 in whole or in part.
  • the mentioned console is designed as designated 6 and explained in more detail below spring means.
  • the exemplified as a sliding guide shoe and shown with dotted lines guide shoe 15 is evidently enclosed by the "C" forming device 6.
  • a damping unit 1 is shown in a lateral front view.
  • the damping unit 1 includes two opposing brake shoes 7, wherein each brake shoe in each case one of the plane-parallel guide surfaces of the (not shown here) guide rail faces.
  • Each brake shoe 7 is held by a designated 8 brake shoe holder.
  • the brake shoe holders 8 are guided laterally on binding elements 16 and can be moved towards or away from the guide rail. Arrows s indicate the respective directions of movement.
  • the individual guide elements 16 are fastened via screw connections 36 to a housing 20.
  • the brake shoes 7 are mounted together with support elements 9 resiliently on the brake shoe holders 8.
  • the brake shoes 7 give in contacting the respective guide surfaces of the guide rail and move relative to the brake shoe holder 8 in the b-direction back.
  • this additional springy storage is not necessarily mandatory. Tests have shown that with damping units that were equipped with designed as a bending springs spring devices in which, however, the brake shoes are more or less rigidly connected to the brake shoe holders, ie have no resiliently mounted by means of mechanical springs brake shoes, already satisfactory Results in terms of ride comfort and reliability are achievable.
  • a C-shaped, box-like profile is arranged in the region of an upper side of the housing 20, in the region of an upper side of the housing 20, a C-shaped, box-like profile is arranged.
  • This C-profile forms a spring device 6, thanks to which the housing 20 with the brake shoes 7 and brake shoe holders 8 arranged thereon is mounted resiliently on the cabin indicated by 2.
  • the spring device 6, which is formed from a sheet metal by bending processes, has a fastening section 21, side walls 22 adjoining it at right angles thereto and end sections 23 connecting at right angles to the side walls.
  • the C-profile for the spring device 6 is preferably made of a blank made of sheet steel. Particular preference is given to using a spring steel.
  • the spring device 6 is thus obviously designed as a metal bending spring.
  • the spring travel created by the spring device 6 resilient mounting is indicated by a double arrow v.
  • the special configuration of the spring device 6 results in a parallelogram configuration which allows an approximately linear parallel displacement of the housing 20 to the underside of the car
  • the end portions 23 of the spring device 6 are flat on a part of the cabin 2 and are fixedly connected thereto via a screw 37.
  • the mentioned cabin part can be formed for example by a cabin floor, a supporting frame of the cabin or by another part associated with the cabin.
  • the guide rail 3 is shown.
  • the brake shoes 7 can travel without contact along the guide rail 3 during the cabin ride.
  • the brake shoe holder 8 are pushed together with the brake shoe 7 disposed thereon against the guide rail 3.
  • the pressed against the respective guide surfaces of the guide rails 3 brake shoes 7 cause a reduction in the vertical vibrations of the cabin caused by load changes.
  • the activation can be triggered, for example, by the door opening or possibly already before (eg as soon as the car is stationary).
  • a designated 4 electric motor As a drive for moving the brake shoe holder 8 is used in the present case a designated 4 electric motor. In principle, however, other actuators would be such as lifting drives imaginable.
  • the electric motor 4 is geared to the brake shoe holders 8.
  • the geared connection comprises a gear transmission 10 and an eccentric arrangement for converting the rotational movement into the linear movement in the s direction.
  • the gear transmission 10 in this case has a central, with the drive axis of the electric motor 4 connected to the drive gear 11 which drives the 12 and 12 'designated gears. How out FIG. 3 as well as from the following FIG. 4 shows, the gear transmission 10 is designed as a spur gear. Of course, other gear-transmission types would be conceivable.
  • the respective eccentric gears 12, 12 'are rotatably connected to axle parts 18, to the end side of the bearing pin 13 are formed.
  • FIG. 4 Details of the arrangement and operation of the gear transmission 10 of the damping unit shows FIG. 4 ,
  • the drivers eg feather keys
  • FIG. 4 Details of the arrangement and operation of the gear transmission 10 of the damping unit shows FIG. 4 ,
  • the drivers eg feather keys
  • FIG. 5 the individual components of the damping unit can be seen.
  • the side of rail-like guide members 16 transverse to the direction of travel or profile longitudinal direction the guide rails are movable back and forth.
  • a separate assembly is in FIG. 5 recognizable at the bottom right, wherein the brake shoes and brake shoe holder have been designated here 7 'and 8'.
  • the support structure is designed substantially in three parts and consists of a GeHouseGermanteil 26, a housing upper part 25 and a cross-section or in plan view U-shaped housing part 27.
  • the guide members 16 ' are by means of screws 36.2 and nuts 36.1 attached to the housing part 27.
  • the gear transmission 10 can be preassembled on a formed from a sheet metal rear side wall 24, which is installed in the final assembly in the rest of the housing.
  • the spring device 6 designed as a spiral spring in C-shape has end sections 23 directed toward one another, which have holes 30 for screw connections for fastening the spring device 6 to the cab (not shown here). Using screws 33, the spring device 6 is screwed in the region of the upper side 25 with the housing of the damping unit and fixed so.
  • FIGS. 6 and 7 show an assembly (or brake shoe unit) with brake shoe holder 8 and brake shoe 7.
  • the brake shoe 7 may be made of a metallic material.
  • the brake shoe 7 may also consist of a plastic material or a material mixture.
  • Advantageous braking surfaces for the desired reduction of the vertical vibrations of the cabin arise, for example, when the known at least in the automotive industry under the names "semi-metallic", “Organic” or “low-metallic” brake pads for the brake shoes.
  • the brake shoe 7 rests on a comparatively rigid support element 9 made of steel. Supported on the support member 9 brake shoes 7 is resiliently supported by two helical compression springs 5 on the brake shoe holder 8.
  • the arrow w indicates the direction of movement in which the brake shoes 7 are moved back when the guide rail is acted on.
  • the brake shoe 7 is arranged limitedly displaceable on the brake shoe holder 8 together with the associated support member by means of screws 31 and nuts 32. Depending on requirements, the inner and front nuts 32 can be tightened so far that the brake shoe 7 is biased.
  • the outer and rear nuts serve as counter nuts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Braking Arrangements (AREA)
  • Vibration Dampers (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Springs (AREA)
EP13724609.6A 2012-05-24 2013-05-24 Dämpfungseinheit für einen aufzug Not-in-force EP2855327B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13724609.6A EP2855327B1 (de) 2012-05-24 2013-05-24 Dämpfungseinheit für einen aufzug

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12169299 2012-05-24
PCT/EP2013/060791 WO2013175001A1 (de) 2012-05-24 2013-05-24 Dämpfungseinheit für einen aufzug
EP13724609.6A EP2855327B1 (de) 2012-05-24 2013-05-24 Dämpfungseinheit für einen aufzug

Publications (2)

Publication Number Publication Date
EP2855327A1 EP2855327A1 (de) 2015-04-08
EP2855327B1 true EP2855327B1 (de) 2016-05-25

Family

ID=48483099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13724609.6A Not-in-force EP2855327B1 (de) 2012-05-24 2013-05-24 Dämpfungseinheit für einen aufzug

Country Status (15)

Country Link
US (1) US9718645B2 (enrdf_load_stackoverflow)
EP (1) EP2855327B1 (enrdf_load_stackoverflow)
JP (1) JP2015517447A (enrdf_load_stackoverflow)
KR (1) KR20150013330A (enrdf_load_stackoverflow)
CN (1) CN104334488B (enrdf_load_stackoverflow)
AU (1) AU2013265155B2 (enrdf_load_stackoverflow)
BR (1) BR112014029136A2 (enrdf_load_stackoverflow)
CA (1) CA2874368A1 (enrdf_load_stackoverflow)
MX (1) MX351844B (enrdf_load_stackoverflow)
NZ (1) NZ702052A (enrdf_load_stackoverflow)
PH (1) PH12014502592A1 (enrdf_load_stackoverflow)
RU (1) RU2014152249A (enrdf_load_stackoverflow)
SG (1) SG11201408283XA (enrdf_load_stackoverflow)
WO (1) WO2013175001A1 (enrdf_load_stackoverflow)
ZA (1) ZA201409521B (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3070043A1 (de) * 2015-03-18 2016-09-21 Inventio AG Spanneinrichtung bei Aufzugsanlagen
CN104803254B (zh) * 2015-05-20 2017-03-15 南通中尧特雷卡电梯产品有限公司 一种机械式电梯减震装置
CN107098286B (zh) 2016-02-22 2021-05-11 奥的斯电梯公司 电梯制动器和电梯制动器的减震垫更换方法
DE202016103895U1 (de) * 2016-07-19 2017-10-20 Wittur Holding Gmbh Betätigungsorgan für eine Aufzugs-Bremseinrichtung
CN108285081B (zh) 2017-01-10 2021-08-03 奥的斯电梯公司 升降机轿厢的稳定装置及其控制方法、升降机系统
EP3569548A1 (en) * 2018-05-18 2019-11-20 Otis Elevator Company Elevator safety gear assembly
CN108821054B (zh) * 2018-08-27 2024-03-19 博众精工科技股份有限公司 轿厢防坠装置及轿厢升降系统
CN111237363A (zh) * 2018-11-28 2020-06-05 奥的斯电梯公司 制动装置、用于电梯的制动系统和电梯系统
CN109748172B (zh) * 2019-03-08 2023-11-24 兰州交通大学 一种应用在垂直提升电梯上的防坠落装置

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US1839235A (en) * 1928-12-12 1932-01-05 See Elevator Company Inc Ab Safety device for elevators
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US5209325A (en) * 1991-04-12 1993-05-11 Eaton-Kenway, Inc. Braking apparatus and method for storage and retrieval vehicles
JPH04365772A (ja) * 1991-06-13 1992-12-17 Toshiba Corp エレベータ用制動装置
ATE175946T1 (de) 1993-10-18 1999-02-15 Inventio Ag Bremssicherheitseinrichtung für eine aufzugskabine
JP3390578B2 (ja) 1995-07-26 2003-03-24 三菱電機株式会社 エレベータ調速機
EP0899231B1 (de) 1997-08-21 2002-10-23 Aufzugstechnologie Schlosser GmbH Bremsfangvorrichtung
JP2000302357A (ja) * 1999-04-22 2000-10-31 Otis Elevator Co セフティブロック一体型ローラガイド
JP2001019292A (ja) * 1999-06-25 2001-01-23 Inventio Ag 鉛直搬送装置の荷重支持手段の鉛直方向変位と鉛直方向振動とを防止する装置および方法
WO2003008319A1 (fr) 2001-07-16 2003-01-30 Mitsubishi Denki Kabushiki Kaisha Dispositif ascenseur
FR2852588B1 (fr) * 2003-03-20 2006-04-14 Thyssenkrupp Elevator Mfg F Parachute-guide pour ascenseur, ainsi que l'ascenseur ainsi equipe
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JP2008162767A (ja) * 2006-12-28 2008-07-17 Toshiba Elevator Co Ltd エレベータの非常止め装置
JP5390988B2 (ja) * 2009-08-19 2014-01-15 日本オーチス・エレベータ株式会社 エレベータ装置
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JP5501946B2 (ja) * 2010-12-15 2014-05-28 株式会社日立製作所 エレベータ

Also Published As

Publication number Publication date
NZ702052A (en) 2016-07-29
KR20150013330A (ko) 2015-02-04
US20150151949A1 (en) 2015-06-04
EP2855327A1 (de) 2015-04-08
AU2013265155B2 (en) 2016-07-28
CN104334488A (zh) 2015-02-04
BR112014029136A2 (pt) 2017-06-27
MX351844B (es) 2017-10-31
JP2015517447A (ja) 2015-06-22
CN104334488B (zh) 2016-12-07
HK1206321A1 (en) 2016-01-08
US9718645B2 (en) 2017-08-01
RU2014152249A (ru) 2016-07-20
MX2014014198A (es) 2015-06-04
PH12014502592A1 (en) 2015-01-26
AU2013265155A1 (en) 2014-12-18
SG11201408283XA (en) 2015-02-27
WO2013175001A1 (de) 2013-11-28
ZA201409521B (en) 2016-08-31
CA2874368A1 (en) 2013-11-28

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