EP2877419A1 - Liftkabine mit wartungsfenster - Google Patents
Liftkabine mit wartungsfensterInfo
- Publication number
- EP2877419A1 EP2877419A1 EP13735297.7A EP13735297A EP2877419A1 EP 2877419 A1 EP2877419 A1 EP 2877419A1 EP 13735297 A EP13735297 A EP 13735297A EP 2877419 A1 EP2877419 A1 EP 2877419A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spacer
- maintenance
- cabin
- lift
- panel
- 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
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 101
- 125000006850 spacer group Chemical group 0.000 claims abstract description 61
- 230000004888 barrier function Effects 0.000 claims abstract description 20
- 238000007689 inspection Methods 0.000 claims abstract 5
- 230000001681 protective effect Effects 0.000 description 18
- 239000000969 carrier Substances 0.000 description 6
- 238000010409 ironing Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 101100494448 Caenorhabditis elegans cab-1 gene Proteins 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
- B66B11/0246—Maintenance features
-
- 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
- B66B5/0043—Devices enhancing safety during maintenance
- B66B5/005—Safety of maintenance personnel
-
- 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
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
Definitions
- the invention relates to a lift cabin with side maintenance window according to the preamble of claim 1.
- Lifts must be regularly inspected and maintained to ensure adequate safety.
- elevator components such as guides of counterweights, guides of the elevator car, trolleys, suspension cables, etc. must also be checked, which often run at least partially in the elevator shaft to the side of the elevator car.
- a lift drive can be arranged laterally next to the elevator car in the elevator shaft.
- a lift fitter can use the maintenance window to access the components on the corresponding side of the elevator shaft from the inside of the cabin
- a corresponding maintenance window is known, for example, from WO 01/79104 AI.
- the lift fitter first drives the elevator car to a desired location and then opens the maintenance window to perform the required maintenance. Often, however, it is advantageous if a ride with the maintenance window open is possible to the
- Lift cabin can be positioned as desired.
- Such revision drives are typically performed at a reduced speed compared to normal travel.
- Such a revision trip involves comparatively great risks for the lift fitter. Elevator components (relative to the elevator car) often pass in close proximity to the maintenance window, so that z. B. clothes of the lift fitter can catch. It is therefore necessary to provide appropriate safety distances of the lift mechanic to the
- WO 2008/074167 A1 describes a lift cabin with maintenance window, in which a barrier is to ensure that the required safety clearances are maintained.
- the maintenance window is closed by a removable panel.
- the panel is parked by the lift fitter after removal on the cabin floor and leaned as a safety barrier to the cabin wall, in which the maintenance window is formed.
- a spacer such as a handrail is provided which determines a distance of the panel from the cabin wall.
- a revision drive is released.
- the security device does not ensure that the barrier is properly located and forms a safety barrier.
- the barrier could fall over during the journey, if they z. B. is not properly hung on the handrail. Since only one position on the panel can be checked via the connection of the cable, the panel can, for. B. may be ajar, so that is fallen below on one side of the safety distance. The lift technician is thus exposed to unnecessary risks, since a revision drive may possibly be feasible with a barrier connected to the safety device, but not correctly arranged.
- This object is solved by the features of claim 1.
- This relates to a lift cabin with a side maintenance window and a panel, which apparently covers an opening of the maintenance window in a normal position.
- a spacer in particular when the maintenance window is open, can be brought into a maintenance position in the maintenance window such that a barrier is provided at a safe distance from passing elevator components.
- a safety device monitors whether the panel is in the normal position and whether the spacer is in the maintenance position.
- the invention is characterized in that the safety device blocks a normal drive and a revision drive the elevator car when the panel is not in the normal position and the spacer is not in the maintenance position.
- a revision drive can only be released by the safety device if the spacer is in the maintenance position.
- the revision drive is automatically released when the spacer is in the maintenance position.
- no further manipulations such as. B. the transfer of a released only in the maintenance position lock switch by the lift mechanic required.
- the inventive solution has the advantage that a revision ride is only released when the spacer is actually in a maintenance position in which there is a barrier with safety distance.
- the spacer z. B. automatically locked.
- the spacer can be locked manually, z.
- the revision ride would be interrupted immediately if the spacer deviates from a maintenance position. It goes without saying that basically also several maintenance positions or a range of maintenance positions can be provided, in which a barrier with a sufficient safety distance is guaranteed.
- the spacer may, for. B. be formed as a separate plate element or bracket element, which in the maintenance position z. B. is inserted from the inside of the cab in corresponding brackets of the elevator car. For this purpose, the spacer z. B. stowed in the elevator car. Likewise, the spacer can be attached to the elevator car and in the maintenance position z. B. be pivoted in the cabin interior. It is understood that the safety distance and a height above the cabin floor of the barrier provided by the spacer can be largely freely selected according to the requirements or the regulations.
- the safety device comprises a first safety contact, which can be activated by bringing the panel into the normal position.
- the safety contact can for example be designed as a switch or as a button, but also be activated magnetically or in another way.
- the safety contact is as simple and robust as possible.
- the first safety contact can be activated directly by the panel, if this comes to the normal position or is arranged in this. Basically, a simple electrical contact button is conceivable, which is closed when inserting the panel in the maintenance window.
- a locking device is also present, via which the panel can be locked in the normal position, such.
- the first safety contact can also be activated only via the locking device when the panel is locked in the normal position or is.
- the panel may be designed, for example, as a one-part or multi-part pivoting wing.
- the panel is designed to be removable for opening, so that an opening of the opened maintenance window is completely released.
- the safety device comprises a second safety contact, which can be activated by the spacer is brought into the maintenance position.
- the second safety contact can be designed largely analogously to the first safety contact.
- the second safety contact is preferably activated directly by the spacer when it enters the maintenance position or is arranged in this. It is understood that instead of a safety contact for both the panel as well as for the spacer otherech achungs devices can be provided. For example, it could also be determined via optical or acoustic sensors whether the panel is in the normal position or the spacer is in the maintenance position.
- the spacer is designed such that it is arranged in the maintenance position largely perpendicular to the cabin wall, on which the maintenance window is formed.
- a size of the spacer can be used to the maximum.
- this can also be arranged at any angle. It is conceivable z. B. arranged below the maintenance window, with an upper edge in the cabin space einschwenkbares further panel.
- an arrangement of the spacer in which the spacer protrudes in the maintenance position through the maintenance window in the cabin interior.
- fastening or holding means can be arranged outside the cabin interior, where they are accessible from the cabin interior only after the opening of the maintenance window.
- the spacer is movably supported on the elevator car. He is in particular from the maintenance position in a rest position can be brought (and vice versa).
- the spacer may be designed extendable, z. B. in the rest position, d. H. in normal operation of the lift, serve as a handrail, which can be pulled in the case of maintenance in longitudinal guides in the cabin interior in the maintenance position.
- the spacer is designed as part of the cabin wall which can be pivoted into the cabin interior, z. B. as another panel.
- the spacer can also be supported so movable that it is fixed in the rest position and the maintenance position each rigidly to the elevator car and is only movable to the transition from one to the other position.
- the spacer between the rest position and the maintenance position is pivotally mounted on the elevator car.
- the spacer is pivotable about a direction substantially parallel to the cabin floor and to the cabin wall. In this way, the spacer in the
- Rest position for example, be particularly space-saving arranged parallel to the cabin wall, while it is pivoted in the service position in the cabin interior.
- the spacer in the rest position is advantageously arranged such that it can be covered by the panel when it is brought into the normal position.
- the spacer can also be designed as a fold-out element of an inner wall lining of the cabin wall, for example as a fold-out bracket.
- the spacer extends at least over the entire width of the clear opening of the maintenance window. Width refers to a dimension in the direction parallel to the cabin wall and the cabin floor. In this way, it is ensured that it is not possible to fall below the safety clearance provided by the spacer from the position of the cabin interior to the maintenance window.
- the spacer can be designed in different ways.
- the spacer comprises a bracket, which is in particular U-shaped.
- the temple can be held on its free arms in pivot bearings on the elevator car.
- the bracket is mounted in a rest position in corresponding supports and arranged with the bracket plane largely parallel to the cabin wall.
- the bracket can be attached via bolts in a maintenance position to a support structure of the elevator car, in which it protrudes largely perpendicular to the cabin wall in the cabin interior.
- B. wing nuts are used, with free ends of the bracket can be angled to provide a good mounting surface.
- the spacer is designed and arranged in the maintenance position such that the safety distance provided by the barrier to the car wall or to the passing elevator components is ensured at a predetermined height above a floor of the elevator car. It is understood that the barrier can extend to the floor at a constant distance and not only ensures the safety distance at a certain height.
- the invention also relates to a lift, z. B. in a building, with a lift cabin as described herein.
- Figure 1 is a sectional view of a lift cabin with maintenance window with a trained as a bracket spacer.
- FIG. 2 is a vertical plan view of a detail of a cabin wall of an elevator cabin according to the invention with a maintenance window with a bracket in a maintenance position; 3 is a view of the arrangement of Figure 2 with a view parallel to the cabin wall and from above perpendicular to the cabin floor ..; Fig. 4 is an analogous view as in Fig. 2, wherein the bracket is in a rest position.
- Figure 1 shows a sectional view of an elevator car 1 with maintenance window 2 with a trained as a bracket 8 spacer.
- "downwards” designates a direction toward a cabin floor of the lift car 1.
- the elevator car 1 is arranged in a lift shaft 17, with 17 different elevator components 18 being located between the elevator car 1 and a wall of the elevator shaft 17.
- the elevator components 18 may comprise cables, rails, drives, counterweights etc. and are presently only indicated as two cables.
- the elevator components 18 are arranged only to one side of the elevator car 1.
- the elevator components 18 are thus accessible through the maintenance window 2, which is formed on a corresponding cabin wall 3.
- an opening 4 of the maintenance window 3 is closed by a panel 5 (not shown).
- the opening 4 is arranged in an opening plane A, which coincides with a plane of the cabin wall 3.
- the maintenance window 2 is apparent, for example, by being completely removable.
- the panel 5 can be parked on a cabin floor or, as shown in FIG. 1, hung on a handrail on the cabin wall 3 (shown in dashed lines).
- a first protective contact 7 is arranged on an upper edge of the opening 4 such that a presence of the panel 5 in the opening 4 can be detected, d. H. when the opening 4 is closed by the panel 5 in a normal position.
- the protective contact 7 can be activated directly by the panel 5 when it closes the opening 4.
- a controller (not shown) of the safety device comprising
- Protective contact 7, z. B. integrated into a control of the elevator car or the lift system or be designed as a separate unit.
- a rest position (shown in dashed lines) formed as a bracket 8 spacers outside the elevator car 1 in the region of the opening 4 is arranged.
- the bracket 8 is, for example, in normal operation of the lift system in the rest position.
- a plane B of the bracket 8 is parallel to an outer side of the cabin wall 3, offset from this outside. The bracket 8 is thus stowed space saving on the outside of the elevator car 1.
- the protective contact 7 is deactivated and thus prevents the elevator car 1 from traveling, as long as there is no safety barrier provided by the bracket 8.
- a lift fitter can now the bracket 8 z. B. move manually in a maintenance position in which the bracket 8 ensures a barrier at a safe distance from the maintenance window 2 and to the elevator components 18.
- the ironing plane B is arranged largely perpendicular to the cabin wall 3, so that the bracket 8 protrudes as far as possible into the cabin interior.
- the bracket 8 outside the lift cab 1 is attached to this essentially pivotable, so that it can be pivoted from the rest position through the opening 4 in the cabin interior in the maintenance position.
- the bracket 8 is designed such that a safety barrier is provided at a distance D from the cabin wall 3.
- Another protective contact 15 of the safety device monitors the position of the bracket 8.
- the protective contact 15 can be activated when the bracket 8 reaches the maintenance position.
- Activation of the protective contact 15 a revision drive is released, for example via the mentioned control of the safety device.
- FIG. 2 shows a vertical plan view of a section of the cabin wall 3 of the elevator cabin 1 according to the invention with the maintenance window 2.
- the viewing direction is directed perpendicular to the cabin wall 3 from the interior of the cabin.
- FIG. 3 shows a view of the arrangement of FIG. 2 with a viewing direction parallel to the cabin wall 3, from above perpendicular to the cabin floor.
- FIGS. 2 and 3 are described together.
- the clear opening 4 of the maintenance window 2 is formed in the plane of the cabin wall 3.
- a lock 6 is centrally located in an upper area, with which the panel 5 can be locked in the opening 4 in a normal position. In the normal position, the panel 5 closes the opening 4. In a region at the upper right corner of the opening 4 of the protective contact 7 is arranged. With the protective contact 7 can be determined whether the panel 5 is in the normal position.
- the designed as a U-shaped bracket 8 spacer is perpendicular to the cabin wall 3 projecting into the cabin interior, fixed to carriers 9 of the elevator car 1.
- the carriers 9 are fixedly arranged in the region of the clear opening 4 on both sides outside the cabin wall 3.
- the carriers 9 each have an opening 4 facing side surface 9.1, to which the bracket 8, each with one of its arms 8.2 is attached.
- the bracket 8 protrudes from the outside arranged carriers 9 through the opening 4 in the cabin interior.
- the bracket 8 spans the opening 4 over its substantially entire width with a connecting section 8.1 connecting the arms 8.2.
- the connecting portion 8.1 is spaced at a safety distance D from the cabin wall 3 and from the plane A of the opening 4 inwardly.
- each attachment lug 10 is arranged parallel to the ironing plane B, while the other side wall (side walls 10.2) is oriented perpendicular to the plane B in each case.
- the side walls 10.1 are arranged below the ironing plane B, while the side walls 10.2 are arranged parallel to the side surfaces 9.1 of the carrier 9 and thus also parallel to the cabin wall 3.
- the attachment lugs 10 each have two slots 11 which are open on one side and perpendicular to the two side walls 10.1 and 10.2.
- the slots 11 extend over both side walls 10.1 and 10.2 of the respective attachment lug 10 and are open at one end of an edge of the side walls 10.1.
- the bracket 8 is mounted with the slots 11 at two arranged on the side surfaces 9.1 bolt 12.
- the bracket 8 can be fastened with wing nuts to the bolt 12.
- the side walls 10.2 of the attachment lugs 10 are clamped by the wing nuts on the carrier 9.
- the side walls 10.1 extend in the maintenance position below the bolt 12.
- the bracket 8 is also connected to both arms 8.2 via a respective designed as a safety chain captive 13 with the bolts 10. If the bracket 8 slide off when loosening the wing nuts of the bolts 12, he can not fall into the elevator shaft in this way.
- the side walls 10.1 of the attachment lugs 10 continue in opposite direction of the attachment lugs 10 on the respective arm 8.2 of the bracket 8 also in extensions 14 away.
- a protective contact 15 is arranged below one of the extensions 14, in the view of FIG. 2 on the right side.
- the protective contact 15 has a contact surface for activation.
- the protective contact 15 is arranged on a cross-member 16 spanning the opening 4.
- the right-hand extension 14 contacts the contact surface of the protective contact 15 in the maintenance position and activates it. By the protective contact 15 can thus be determined that the bracket 8 is in the maintenance position.
- Figure 4 shows an analogous view as Figure 2, wherein the spacer is in a rest position.
- the wing nuts of the bolts 12 are detachable. Due to the slots 11 of the bracket 8 can be pivoted with dissolved wing nuts on the bolts 12 pivoted downwards.
- the bolts 12 slide in the slots 11 of the side walls 10.2 in the side walls 10.1.
- the side walls 10.2 are pivoted upwardly and are arranged in the rest position above the bolts 12.
- the bolts 12 are spaced more than the distance D with respect to a lower edge of the opening 4, so that the bracket 8 can be pivoted downwards and through the opening 4 to the outside.
- the ironing plane B is arranged in the rest position outside the cabin wall 3 parallel to the plane A and the side surfaces 9.1 of the carrier 9.
- the side walls 10.1 of the attachment lugs 10 can be clamped to the carriers 9.
- the bracket 8 is thus fixed in the rest position.
- the panel 5 can be inserted into the opening 4 (normal position), wherein the bracket 8 is covered.
- By inserting the panel 5 of the protective contact 7 is activated, whereby a normal drive is released.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13735297.7A EP2877419B1 (de) | 2012-07-27 | 2013-07-11 | Liftkabine mit wartungsfenster |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12178188.4A EP2690050A1 (de) | 2012-07-27 | 2012-07-27 | Liftkabine mit Wartungsfenster |
EP13735297.7A EP2877419B1 (de) | 2012-07-27 | 2013-07-11 | Liftkabine mit wartungsfenster |
PCT/EP2013/064704 WO2014016135A1 (de) | 2012-07-27 | 2013-07-11 | Liftkabine mit wartungsfenster |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2877419A1 true EP2877419A1 (de) | 2015-06-03 |
EP2877419B1 EP2877419B1 (de) | 2016-07-13 |
Family
ID=48782338
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12178188.4A Withdrawn EP2690050A1 (de) | 2012-07-27 | 2012-07-27 | Liftkabine mit Wartungsfenster |
EP13735297.7A Not-in-force EP2877419B1 (de) | 2012-07-27 | 2013-07-11 | Liftkabine mit wartungsfenster |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12178188.4A Withdrawn EP2690050A1 (de) | 2012-07-27 | 2012-07-27 | Liftkabine mit Wartungsfenster |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150246792A1 (de) |
EP (2) | EP2690050A1 (de) |
CN (1) | CN104487372B (de) |
WO (1) | WO2014016135A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2688828A1 (de) * | 2011-03-21 | 2014-01-29 | H. Henseler AG | Lift mit minimaler liftschacht-grubentiefe und mit permanentem schutzraum |
WO2015189652A1 (en) * | 2014-06-11 | 2015-12-17 | Otis Elevator Company | Elevator system |
CN107074479B (zh) * | 2014-07-25 | 2019-08-23 | 奥的斯电梯公司 | 从电梯系统的轿厢内部进行电梯系统维护 |
US10745240B2 (en) | 2015-03-23 | 2020-08-18 | Otis Elevator Company | Elevator operation and service panel |
WO2016162710A1 (en) * | 2015-04-07 | 2016-10-13 | Otis Elevator Company | Locking system for panels of an elevator car and method of controlling access to an elevator shaft from the inside the car |
EP3280673B1 (de) * | 2015-04-10 | 2019-06-05 | Otis Elevator Company | System und verfahren für sicherheitsgetriebeausrichtung für einen aufzug |
US10633222B2 (en) | 2015-06-19 | 2020-04-28 | Otis Elevator Company | Removable elevator car door panel |
AU2016320400B2 (en) * | 2015-09-11 | 2019-08-29 | Inventio Ag | Device and method for monitoring a maintenance mode of an elevator installation |
EP3210926B1 (de) * | 2016-02-23 | 2020-01-01 | Otis Elevator Company | Aufzugswartungskonsole |
EP3269673B1 (de) * | 2016-07-11 | 2020-05-06 | Otis Elevator Company | System zur ermöglichung des zugriffs auf ein laufendes kabeltotend-hitch von innerhalb einer aufzugskabine |
EP3309101B1 (de) * | 2016-10-17 | 2020-06-03 | Otis Elevator Company | Aufzugskabine, aufzugssystem und verfahren zur überprüfung, wartung und/oder reparatur eines aufzugssystems |
CN106629288B (zh) * | 2016-12-27 | 2018-12-04 | 廖忠民 | 具有可收放维修工作台的升降设备 |
CN106629287B (zh) * | 2016-12-27 | 2018-11-27 | 廖忠民 | 齿轮齿条升降设备在轨维修支持装置 |
CN106584408A (zh) * | 2016-12-30 | 2017-04-26 | 廖忠民 | 升降设备无级调距维修工作台 |
EP3564174B1 (de) * | 2018-05-03 | 2021-06-30 | Otis Elevator Company | Zu öffnende wandplatten für aufzugskabine |
EP3747818B1 (de) | 2019-06-05 | 2024-01-17 | Otis Elevator Company | Abnehmbare platte für eine aufzugplattenanordnung |
KR102326761B1 (ko) * | 2019-10-16 | 2021-11-16 | 주식회사 다지트 | 엘리베이터의 핸드레일을 이용한 엘리베이터 짐받이 장치 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000247560A (ja) * | 1999-02-26 | 2000-09-12 | Mitsubishi Electric Corp | エレベーター装置 |
WO2001047798A1 (de) * | 1999-12-27 | 2001-07-05 | Inventio Ag | Inspektionsöffnung in einer aufzugskabine |
WO2001079104A1 (en) | 2000-04-17 | 2001-10-25 | Otis Elevator Company | Elevator in-car maintenance |
JP4963153B2 (ja) * | 2001-06-15 | 2012-06-27 | 三菱電機株式会社 | 機械室レスエレベーター |
CH699369B1 (de) | 2006-12-20 | 2010-02-26 | Henseler H Ag | Liftkabine mit Wartungsfenster. |
CH700929B1 (de) * | 2007-02-06 | 2010-11-15 | Henseler H Ag | Aus der Liftkabine wartbarer Antrieb für eine Liftkabine. |
ES2774946T3 (es) * | 2014-04-02 | 2020-07-23 | Otis Elevator Co | Panel de operación de cabina extraíble |
-
2012
- 2012-07-27 EP EP12178188.4A patent/EP2690050A1/de not_active Withdrawn
-
2013
- 2013-07-11 US US14/417,306 patent/US20150246792A1/en not_active Abandoned
- 2013-07-11 WO PCT/EP2013/064704 patent/WO2014016135A1/de active Application Filing
- 2013-07-11 CN CN201380039293.8A patent/CN104487372B/zh not_active Expired - Fee Related
- 2013-07-11 EP EP13735297.7A patent/EP2877419B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2014016135A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104487372B (zh) | 2016-10-26 |
WO2014016135A1 (de) | 2014-01-30 |
EP2690050A1 (de) | 2014-01-29 |
US20150246792A1 (en) | 2015-09-03 |
EP2877419B1 (de) | 2016-07-13 |
CN104487372A (zh) | 2015-04-01 |
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