EP1424302B2 - Elevator device - Google Patents

Elevator device Download PDF

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Publication number
EP1424302B2
EP1424302B2 EP01949992.0A EP01949992A EP1424302B2 EP 1424302 B2 EP1424302 B2 EP 1424302B2 EP 01949992 A EP01949992 A EP 01949992A EP 1424302 B2 EP1424302 B2 EP 1424302B2
Authority
EP
European Patent Office
Prior art keywords
door
car
vibration damping
car door
passenger car
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.)
Expired - Lifetime
Application number
EP01949992.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1424302B1 (en
EP1424302A4 (en
EP1424302A1 (en
Inventor
Takenobu Honda
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.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11737550&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1424302(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1424302A1 publication Critical patent/EP1424302A1/en
Publication of EP1424302A4 publication Critical patent/EP1424302A4/en
Application granted granted Critical
Publication of EP1424302B1 publication Critical patent/EP1424302B1/en
Publication of EP1424302B2 publication Critical patent/EP1424302B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00Hoistway equipment
    • B66B17/34Safe lift clips; Keps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02Cages, i.e. cars
    • B66B11/026Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
    • B66B11/0266Passive systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/06Door or gate operation of sliding doors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/06Door or gate operation of sliding doors
    • B66B13/08Door or gate operation of sliding doors guided for horizontal movement

Definitions

  • This invention relates to a vibration damping apparatus for damping vibration/shaking of a passenger car of an elevator system, and more particularly the invention is concerned with an elevator system equipped with the vibration damping apparatus mounted on the passenger car.
  • FIG 7 is a sectional view showing an elevator shaft structure of a conventional elevator system known heretofore such as disclosed, for example, in Japanese Patent Application Laid-Open Publications No. 18577/1991 ( JP-A-03 018 577 ).
  • Figure 8 is a view showing an outer appearance of a passenger car of a conventional elevator system.
  • a passenger car 1 and a counterweight 2 are movable within an elevator shaft not shown, being guided by upstanding guide rails 5 disposed vertically through the medium of respective guide shoes 4.
  • the car 1 is connected to ropes 3 at one ends thereof, while the counterweight 2 is connected to the other ends of the ropes 3.
  • the ropes 3 are wound around a drive sheave 6 mounted internally of a machine room which is installed at a top portion of the elevator shaft although it is omitted from illustration.
  • the drive sheave 6 Upon operation of the elevator system, the drive sheave 6 is rotated and the passenger car 1 is moved up and down in accompanying the rotation of the drive sheave.
  • a traction system in which a driving force is transmitted under the action of friction acting between the drive sheave 6 and the ropes 3, as shown in Fig. 7
  • a winding drum system in which the ropes 3 suspending the passenger car 1 is simply wounded around a drum, although not shown.
  • the present invention can effectively be applied to both the systems.
  • Fig. 8 passengers can get on and off the car by opening and closing a car door 8 suspended by a door opening/closing unit 7 which is installed at a top portion of the passenger car 1.
  • the vibration damping apparatus provided for the passenger car 1 includes a mechanism for pressing or pushing the guide rails 5 from the passenger car 1 to thereby suppress displacement of the passenger car 1 while suppressing vibration or shaking thereof.
  • the present invention has been made with a view to solve the problem described above and contemplates as an object thereof to provide an elevator system capable of solving the above problem satisfactorily with a structure which can be realized inexpensively in light weight without requiring a large space while allowing the elevator system to be realized with significant reduction of the cost.
  • FIG. 1 is an outer appearance view of an elevator system according to a first embodiment of this invention and shows a portion thereof, being enlarged.
  • a cam 8a is mounted on a top portion of a car door 8 at an outer end thereof.
  • the cam 8a pushes upwardly one end portion of a lever 9a constituting a part of a link mechanism 9.
  • the lever 9a is rotatably supported on a bracket 9c.
  • a vibration damping member 9e is pressed against a guide rail 5.
  • a frictionally slidable member capable of producing friction increasingly is fixedly secured onto a surface of the vibration damping member 9e which oppositely faces the guide rail 5 although illustration of the frictionally slidable member is omitted.
  • the vibration damping apparatus is operatively combined with a door opening/closing unit of the passenger car and so arranged as to operate in accompanying the opening/closing operation of the car door 8 to press the vibration damping members 9e against the guide rail serving as a lift path member for thereby suppressing the vibration or shaking of the cage.
  • the vibration damping apparatus includes the link mechanism 9 arranged to press against the guide rail 5 the frictionally slidable member provided on the vibration damping member 9e disposed between the car door 8 and the guide rail 5 to thereby suppress the shaking of the passenger car.
  • the vibration damping apparatus is operatively coupled to the door opening/closing unit of the passenger car which is intrinsically provided in the elevator system and so arranged as to operate in accompanying the opening/closing operation of the car door 8 to press the vibration damping member 9e against the lift path member for thereby suppressing the shaking of the passenger car.
  • the vibration damping apparatus does not require a large space for the installation thereof and can be implemented inexpensively in low weight.
  • the elevator system can be realized with significant reduction of the cost.
  • Figure 2 is a front view showing a door opening/closing unit of an elevator system according to a second embodiment of this invention.
  • Figure 3 is a front view of a hall door unit.
  • Figure 4 is an enlarged top-side view showing engaging members for causing a car door and a hall door to engage with each other.
  • the door opening/closing unit 7 is mounted at a front top portion of a passenger car.
  • the car door 8 suspended by a suspension member 7a is adapted to be opened and closed by means of an electric motor 7c which is operatively connected to the car door 8 through the medium of an interlink rope 7b.
  • a car door engaging member 8b serving as the vibration damping member is disposed at the position corresponding to a hall door unit 10.
  • the car door engaging member 8b is implemented in a substantially C-like cross-section and extends in the up/down direction of the passenger car.
  • the hall door unit 10 is mounted at a front top portion of a hall.
  • a suspension rail 10e is so disposed as to be sandwiched between a roller 10c and a roller 10d while a hall door 10b suspended on the suspension rail 10e is adapted to be movable in the left/right direction along the suspension rail 10e.
  • a hall door engaging member 10a serving as the vibration damping member is disposed at the position corresponding to the door opening/closing unit 7.
  • the hall door engaging member 10a is implemented in a substantially C-like cross-section and extends in the up/down direction of the passenger car.
  • the car door engaging member 8b and the hall door engaging member 10a face in opposition to each other and engage with each other, as can be seen in Fig. 4 .
  • the hall door 10b is also opened/closed in linkage with the movement of the car door 8.
  • the driving force of the electric motor 7c is intensified to an appropriate magnitude. Accordingly, the driving force of the door opening/closing unit 7, i.e., the driving force of the electric motor 7c, is transmitted to the hall door 10b defining the lift path by way of the engaging members 8b and 10a. In this manner, shaking of the passenger car can be suppressed.
  • a frictionally slidable members 8c are provided between the car door engaging member 8b and the hall door engaging member 10a for increasing the frictional force. More specifically, the frictionally slidable member 8c is provided on a surface 8b1 of the car door engaging member 8b implemented substantially in a C-like cross-section which surface is pushed against the hall door engaging member upon opening of the car door and a surface 8b2 which is pushed upon closing of the car door.
  • the frictional force of the engaging members 8b and 10a increases, whereby the vibration of the passenger car is further damped.
  • vibration of the passenger car can be attenuated even in the course of opening or closing the door or in the state in which the door is held fully opened.
  • the frictionally slidable members 8c may be provided in combination with either the car door engaging member 8b or the hall door engaging member 10a.
  • the car door engaging member 8b is shorter than the hall door engaging member 10a, it is preferred to provide the frictionally slidable member 8c for the car door engaging member 8b because then the frictionally slidable member 8c can be formed in a reduced size inexpensively.
  • the vibration damping apparatus for the elevator system there can be expected no more than the vibration damping effectuated by the frictional force equivalent to the door weight of the car door and the hall door in the course of operation for opening the doors.
  • the pushing force in the state where the door is fully opened can be regulated with high degree of freedom by adjusting the driving force of the electric motor 7c.
  • each of the car door and the hall door includes a plurality of rollers which are so arrayed as to sandwich the suspension rail in the vertical direction.
  • vibration of the passenger car in the state where the car door engaging member 8b and the hall door engaging member 10a engage with each other will cause the doors to move within the range delimited by the gap, giving rise to jolting, vibration and noise while possibly involving damage to the life of the machinery.
  • the rollers by disposing the rollers on and under the rail for guiding the door upon opening/closing thereof while sandwiching the rail between the rollers, there can be realized the structure in which the gap is blocked up.
  • FIG. 5 is a front view showing a door opening/closing unit of the elevator system according to a third embodiment.
  • Figure 6 is a front view of a hall door unit.
  • a car door 8 is provided with a fixed clamping member 8d and a movable clamping member 8e which cooperate to constitute a clamping device or unit.
  • the distance between the fixed clamping member 8d and the movable clamping member 8e changes in dependence on the opening condition of the car door 8.
  • a frictionally slidable member not shown is provided on each of the opposite surfaces of the fixed clamping member 8d and the movable clamping member 8e.
  • the hall door engaging member 10f includes a row of rollers arrayed along the up/down direction of the passenger car.
  • both the clamping members 8d and 8e are still opened or separated widely at the beginning of the door opening operation.
  • the movable clamping member 8e is forced to move toward the fixed clamping member 8d by means of a cam 8f till the hall door engaging member 10f is fixedly held by the fixed clamping member and the movable clamping member, being sandwiched therebetween.
  • the shape of the cam 8f is so determined that the holding force exerted by the movable clamping member 8e remains constant even when the car door 8 is completely opened.
  • the cam 8f can move in accompanying the opening/closing operation of the car door 8 owing to a link 8h by means of which a pin 7d provided on the door opening/closing unit 7 and a pin 8g provided on the car door 8 are linked to each other. Further, owing to this arrangement, the cam 8f can produce a clamping or gripping force of appropriate magnitude.
  • the clamping unit may be provided on the side of the elevator hall or the elevator shaft.
  • the hall door engaging member 10f is implemented in the form of the roller array, it goes without saying that similar action and effect can be achieved even when a flat plate is employed instead of the rollers.
  • the frictionally slidable member is formed of a polyurethane resin. Since the polyurethane resin exhibits enhanced friction characteristic and is excellent in respect to the abrasion resistance as well, sufficient vibration damping effect can be expected even when the opening force of the door opening/closing unit is small. Thus, not only miniaturization of the machinery can be realized but also use over an extended period can be ensured. Besides, because hardness of the frictionally slidable member can be selected with high degree of freedom, the action for buffering collision noise generated at the engaging portion can be regulated with high degree of freedom, whereby enhanced vibration damping effect and silentness feature can compatibly be realized.
  • the frictionally slidable member may be formed of a macromolecular polyethylene resin.
  • the macromolecular polyethylene resin is capable of exhibiting stabilized vibration damping characteristic because of substantially no significant difference between the static friction characteristic and the dynamic friction characteristic.
  • the macromolecular polyethylene resin is excellent in the abrasion resistance and thus can be used over an extended period. Although the coefficient of friction is not excessively large, the macromolecular polyethylene resin can ensure an excellent silentness feature.
  • the macromolecular polyethylene resin is also advantageously suited for use in the vibration damping apparatus installed at a location in the vicinity of the elevator hall where many passengers come and go.
  • the present invention has proposed the elevator system includes the elevator shaft having elevator halls and guide rails, the passenger car disposed within the elevator shaft so as to be reciprocatively moved up and down by means of the hoisting machine through the medium of ropes, being guided by the guide rails, and the vibration damping apparatus operatively coupled to the door opening/closing unit of the passenger car and so arranged as to operate in accompanying opening/closing operation of the car door to press the vibration damping member to the elevator shaft to thereby suppress shaking of the passenger car.
  • the vibration damping apparatus is composed of the link mechanism disposed between the car door and the guide rail and designed for pressing against the guide rail the frictionally slidable member provided on the vibration damping member to thereby suppress shaking of the passenger car.
  • the vibration damping apparatus can be realized with a simplified structure while ensuring operation with high reliability. Additionally, because the vibration damping apparatus can be implemented in light weight, the passenger car can be protected from increasing in weight.
  • the vibration damping apparatus can alternatively be composed of engaging members disposed between the car door and the hall door to serve as the vibration damping members for causing the car door and the hall door to engage with each other upon opening/closing of the car door of the passenger car for transmitting the driving force of the door opening/closing unit to the hall door to thereby suppress shaking of the passenger car.
  • the structure of the vibration damping apparatus can be simplified and thus the weight of the passenger car can be prevented from increasing excessively.
  • the engaging members are composed of the car door engaging member provided on the car door and the hall door engaging member provided on the hall door, wherein the frictionally slidable member is disposed between the engaging members.
  • the car door engaging member is so implemented as to have the substantially C-like cross-section and extends in the up/down direction of the passenger car while the hall door engaging member is so implemented as to have the substantially C-like cross-section and disposed to face in opposition to the car door engaging member so as to be engageable therewith, wherein the frictionally slidable member is provided on the surface of the car door engaging member or the hall door engaging member of the substantially C-like cross-section, which surface is pushed upon opening/closing of the car door.
  • the frictionally slidable member is provided on the car door engaging member.
  • the frictionally slidable member can be formed in a reduced size inexpensively.
  • the vibration damping apparatus can be composed of the clamping unit installed on one of the passenger car and the elevator hall and designed for operating in accompanying opening/closing operation of the car door, and the clamped member installed on the other of the passenger car and the elevator hall to be clamped by the clamping unit.
  • the vibration or shaking due to change of the load imposed on the passenger car can be prevented with high reliability.
  • the clamping unit is provided with the frictionally slidable member for increasing friction acting between the clamping unit and the clamped member.
  • the vibration or shaking of the passenger car can positively be suppressed.
  • the car door and the hall door include a plurality of rollers, respectively, for holding respective suspension rails each in the state sandwiched between the rollers in the up/down direction. Owing to this arrangement, jolting, vibration and noise can be suppressed, ensuring extended life for the machinery.
  • the frictionally slidable member is formed of a polyurethane resin. Since the polyurethane resin exhibits enhanced abrasion resistance and is excellent in respect to the friction characteristic as well, sufficient vibration damping effect can be expected even when the opening force of the door opening/closing unit is small. Thus, not only miniaturization of the machinery can be realized but also use over an extended period can be ensured. Besides, because hardness of the frictionally slidable member can be selected with high degree of freedom, the action for buffering collision noise generated at the engaging portion can be regulated with high degree of freedom, whereby enhanced vibration damping effect and silentness feature can compatibly be realized.
  • the frictionally slidable member can be formed of a macromolecular polyethylene resin.
  • the macromolecular polyethylene resin is capable of exhibiting stabilized vibration damping characteristic because of substantially no significant difference between the static friction characteristic and the dynamic friction characteristic.
  • the macromolecular polyethylene resin is excellent in the abrasion resistance and thus can be used over an extended period. Further, the macromolecular polyethylene resin can ensure an excellent silentness feature.
  • the macromolecular polyethylene resin is advantageously suited for use in the vicinity of the elevator hall where many passengers come and go.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Elevator Door Apparatuses (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP01949992.0A 2001-07-16 2001-07-16 Elevator device Expired - Lifetime EP1424302B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/006133 WO2003008319A1 (fr) 2001-07-16 2001-07-16 Dispositif ascenseur

Publications (4)

Publication Number Publication Date
EP1424302A1 EP1424302A1 (en) 2004-06-02
EP1424302A4 EP1424302A4 (en) 2010-02-17
EP1424302B1 EP1424302B1 (en) 2010-10-27
EP1424302B2 true EP1424302B2 (en) 2015-09-23

Family

ID=11737550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01949992.0A Expired - Lifetime EP1424302B2 (en) 2001-07-16 2001-07-16 Elevator device

Country Status (6)

Country Link
EP (1) EP1424302B2 (zh)
JP (1) JP4975234B2 (zh)
KR (1) KR100520927B1 (zh)
CN (1) CN1264741C (zh)
DE (1) DE60143366D1 (zh)
WO (1) WO2003008319A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10288135B2 (en) 2016-02-22 2019-05-14 Otis Elevator Company Brake for elevator and a replacement method of damper of the brake for elevator
US11834300B2 (en) 2021-08-10 2023-12-05 Tk Elevator Innovation And Operations Gmbh Stabilizing assemblies and methods of use thereof

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009120315A (ja) * 2007-11-14 2009-06-04 Mitsubishi Electric Corp エレベータのドア装置
KR101153123B1 (ko) * 2008-06-16 2012-06-04 미쓰비시덴키 가부시키가이샤 엘리베이터의 엘리베이터칸 도어로크장치
KR101043228B1 (ko) * 2010-10-12 2011-06-21 서울대학교산학협력단 주사기
JP5804695B2 (ja) * 2010-11-30 2015-11-04 東芝エレベータ株式会社 エレベータのかご振動抑制装置
JP5319712B2 (ja) * 2011-01-21 2013-10-16 日本オーチス・エレベータ株式会社 エレベータの戸開走行防止装置
JP2012218897A (ja) * 2011-04-11 2012-11-12 Toshiba Elevator Co Ltd エレベータ
EP2607287A1 (de) 2011-12-19 2013-06-26 Inventio AG Vorrichtung für einen Aufzug und Verfahren zum Betreiben eines Aufzugs
EP2607288A1 (de) * 2011-12-19 2013-06-26 Inventio AG Anordnung für einen Aufzug
EP2855328B1 (de) 2012-05-24 2016-05-25 Inventio AG Dämpfungseinheit für einen aufzug
RU2014152249A (ru) 2012-05-24 2016-07-20 Инвенцио Аг Демпферное устройство лифта
CN104981423A (zh) * 2013-02-12 2015-10-14 因温特奥股份公司 对电梯设备的电梯轿厢的竖向振动的缓冲
CN103449282B (zh) * 2013-08-20 2016-04-20 佛山甬大电梯部件有限公司 一种带有油压减震装置的电梯轿厢
WO2016096764A1 (de) * 2014-12-17 2016-06-23 Inventio Ag Dämpfereinheit für einen aufzug
CN107108171B (zh) * 2014-12-17 2020-05-29 因温特奥股份公司 用于电梯的减振单元
US10906782B2 (en) 2015-01-20 2021-02-02 Otis Elevator Company Passive elevator car
JP6081530B2 (ja) * 2015-06-24 2017-02-15 東芝エレベータ株式会社 ランニングクリアランス閉塞装置
WO2017017119A1 (de) 2015-07-29 2017-02-02 Inventio Ag Dämpfereinheit für einen aufzug
WO2017182383A1 (de) 2016-04-21 2017-10-26 Inventio Ag Aufzugsanlage
CN111377338B (zh) * 2018-12-29 2021-10-08 上海三菱电梯有限公司 轿厢减振装置
US12071325B2 (en) * 2020-03-12 2024-08-27 Inventio Ag Method for forming a guide structure for guiding an elevator car in an elevator shaft

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723772A (ja) 1993-07-12 1995-01-27 Kureha Chem Ind Co Ltd 加熱処理菌糸体

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Publication number Priority date Publication date Assignee Title
JPH0318577A (ja) * 1989-06-13 1991-01-28 Mitsubishi Electric Corp エレベータ装置
JP2503741B2 (ja) * 1990-08-06 1996-06-05 三菱電機株式会社 エレベ―タ―のドア装置
JPH04164797A (ja) * 1990-10-29 1992-06-10 Toshiba Corp エレベータ
JPH0748080A (ja) * 1993-08-06 1995-02-21 Toshiba Corp エレベータのドア
JPH09249365A (ja) * 1996-03-13 1997-09-22 Home Elevator Kk エアバッグエレベータのかご戸の開放と連動するかごの落下係止機構
JP3905613B2 (ja) * 1997-10-22 2007-04-18 東芝エレベータ株式会社 エレベータ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723772A (ja) 1993-07-12 1995-01-27 Kureha Chem Ind Co Ltd 加熱処理菌糸体

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10288135B2 (en) 2016-02-22 2019-05-14 Otis Elevator Company Brake for elevator and a replacement method of damper of the brake for elevator
US11834300B2 (en) 2021-08-10 2023-12-05 Tk Elevator Innovation And Operations Gmbh Stabilizing assemblies and methods of use thereof

Also Published As

Publication number Publication date
KR100520927B1 (ko) 2005-10-17
EP1424302B1 (en) 2010-10-27
JPWO2003008319A1 (ja) 2004-11-04
EP1424302A4 (en) 2010-02-17
WO2003008319A1 (fr) 2003-01-30
KR20030028842A (ko) 2003-04-10
JP4975234B2 (ja) 2012-07-11
DE60143366D1 (de) 2010-12-09
CN1458901A (zh) 2003-11-26
CN1264741C (zh) 2006-07-19
EP1424302A1 (en) 2004-06-02

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