CN101927939A - Apparatus of passenger conveyor - Google Patents
Apparatus of passenger conveyor Download PDFInfo
- Publication number
- CN101927939A CN101927939A CN2010102834743A CN201010283474A CN101927939A CN 101927939 A CN101927939 A CN 101927939A CN 2010102834743 A CN2010102834743 A CN 2010102834743A CN 201010283474 A CN201010283474 A CN 201010283474A CN 101927939 A CN101927939 A CN 101927939A
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- Prior art keywords
- framework
- zone
- machine room
- backhaul
- crossbeam
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Abstract
The object of the present invention is to provide a kind of apparatus of passenger conveyor, its stair structure that does not need to comprise wheel is designed to special construction, just can dwindle the height dimension of framework centre portion.In the present invention, in the length direction centre portion (4C, 4D, 4E, 4c) of framework (4), recess (21,22,31) is formed at the bottom at the crossbeam (14) relative with the step of backhaul side, and the part of the step of backhaul side is walked by this recess is interior.By adopting above structure, the run trace that can make backhaul side step is near the run trace side of removing journey side step, thereby the stair structure that does not need to comprise wheel is designed to special construction, just can dwindle the height dimension of the centre portion of lengths of frame direction.
Description
The application is to be on January 23rd, 2008 applying date, and application number is 200810008503.8, and denomination of invention is divided an application for the patent application of " apparatus of passenger conveyor ".
Technical field
The present invention relates to a plurality of pedals that a kind of passenger of transmission uses can form the electronic passage that can not form difference of height between the escalator of difference of height and the adjacent pedal etc. in tilting zone apparatus of passenger conveyor, especially relate to a kind of apparatus of passenger conveyor that can suitably be arranged in stair and the passage.
Background technology
In the ordinary course of things, when in stair and passage etc., apparatus of passenger conveyor being set,, preferably reduce the height dimension of framework as much as possible for the excavation amount with step and passage etc. is reduced to Min..For this reason, for example open and disclose a kind of apparatus of passenger conveyor in the 2001-10775 communique the patent of invention spy of Japan of patent documentation 1, the walking position that goes journey side and backhaul side that it changes by the trailing wheel of pedal pivot supporting makes these repeat on above-below direction at the trailing wheel that goes journey side and backhaul skidding to walk.By being arranged to said structure, instant pedal is close in following direction, goes the trailing wheel of journey side pedal and the trailing wheel of backhaul side pedal also can not produce interference, for this reason, can dwindle the height dimension of framework.
Patent documentation 1: TOHKEMY 2001-10775 communique (Fig. 1 to Fig. 8)
In above-mentioned prior art, the pivot suspension structure of pedal trailing wheel must be designed to special shape, and, if when this technology is applied to the centre portion of lengths of frame direction, owing to go the pedal trailing wheel of journey side and backhaul side on above-below direction, to repeat, can't go to guarantee between journey side and the backhaul side that crossbeam is provided with the problem in space so exist.For this reason, when crossbeam is set, there is the problem that must strengthen the frame height size.
Summary of the invention
The object of the present invention is to provide a kind of apparatus of passenger conveyor, its stair structure that does not need to comprise wheel is designed to special construction, just can dwindle the height dimension of framework centre portion.
To achieve these goals, in apparatus of passenger conveyor of the present invention, the centre portion of lengths of frame direction relative with backhaul side step to the crossbeam bottom be formed with recess, and the part of backhaul side step is walked in this recess.
The invention effect
By apparatus of passenger conveyor is designed to said structure, the run trace that can make backhaul side step is near the run trace side of removing journey side step, so can be designed to dwindle the height dimension of the centre portion of lengths of frame direction under the situation of special construction at the stair structure that does not need to comprise wheel.
Description of drawings
Fig. 1 is the side-looking schematic partial cross-sectional view of escalator of first embodiment of expression apparatus of passenger conveyor of the present invention;
Fig. 2 is the amplification sectional view along the A-A line of Fig. 1;
Fig. 3 is the variation of Fig. 2;
Fig. 4 is the side-looking schematic partial cross-sectional view of the application examples of expression apparatus of passenger conveyor of the present invention;
Fig. 5 is the side-looking schematic partial cross-sectional view of electronic passage of second embodiment of expression apparatus of passenger conveyor of the present invention;
Fig. 6 is the amplification sectional view along the D-D line of Fig. 5.
Nomenclature
1,26 escalators
2 upper floor floors
3 bottom floors
4 frameworks
Zone, Machine Room, 4A top
Zone, Machine Room, 4B bottom
The 4C zone line
4D inclination zone line
The horizontal zone line of 4E
Zone, 4a first Machine Room
Zone, 4b second Machine Room
The 4c zone line
5 steps
The 5A front-wheel
The 5B trailing wheel
6 railings
7 moving hand-rails
8 actuating devices
9 drive sprockets
Machine Room, 10 top
11 driven sprockets
Machine Room, 12 bottom
13 body side frames
14 crossbeams
The 14A horizontal member
The 14B vertical member
15 base plates
15A oil storage dish
16A, 16 gangway base plates
17 chains
18A removes journey side front-wheel guide rail
18B backhaul side front-wheel guide rail
19A removes journey side trailing wheel guide rail
19B backhaul rear flank wheel guide rail
21,22,31 grooves
27 electronic passages
28A removes journey side wheel guide rail
28B backhaul sidecar wheel guide rail
29,29a, 29b pedal
30 wheels
The specific embodiment
Escalator shown in below seeing figures.1.and.2 describes first embodiment of apparatus of passenger conveyor of the present invention.
Described framework 4 comprises: zone, Machine Room, the bottom 4B that is formed with Machine Room, the top zone 4A of the Machine Room, top 10 that is used to be provided with actuating device 8 and drive sprocket 9 etc. and is formed with the Machine Room, bottom 12 that is used to be provided with driven sprocket 11 and not shown step clearing apparatus etc. in the two end portions of length direction, be formed with zone line 4C between zone, this Machine Room, top 4A and zone, Machine Room, bottom 4B, the described step 5 of formation removes Cheng Tongdao and backhaul passage in this zone line 4C.In addition, from the cross section of described framework 4, have the body side frame 13 of pair of right and left, the base plate 15 that connects the crossbeam 14 of this left and right sides framework 13 and be used to cover the end portion of left and right sides framework 13 and have oil storage dish 15A in the inboard.Body side frame 13 has: the length direction of framework 4 extend on chord member 13A, be arranged on chord member 13A on this below and with this on chord member lower chord member 13B spaced apart, will be somebody's turn to do the longitudinal 13C that chord member 13A and lower chord member 13B couple together.In addition, in Machine Room, described top zone 4A and zone, Machine Room, bottom 4B, also be provided with floor, gangway 16A, the 16B that flushes with described upper floor floor 2 and bottom floor 3.
Described step 5 has the pedal that allows the passenger stand, and is provided with front-wheel 5A and trailing wheel 5B with pivot suspension in the front and back of working direction.And the chain 17 by ring-type connects the axletree of front-wheel 5A, and this chain 17 around being arranged on described drive sprocket 9 and the driven sprocket 11, and is driven drive sprockets 9 by described actuating device 8, and the circulation that makes described pedal 5 carry out ring-type is moved.
In addition, the front-wheel 5A of step 5 and trailing wheel 5B along be arranged on the journey side and form step 5 run trace go journey side front-wheel with guide rail 18A with go journey side trailing wheel to walk with guide rail 19B with guide rail 18B and backhaul rear flank wheel with guide rail 19A and the backhaul side front-wheel that is arranged on the backhaul side and forms the run trace of step 5.
Going the journey side, going journey side front-wheel with guide rail 18A and go journey side trailing wheel to constitute by integrally formed product, and be supported in body side frame 13 sides of described crossbeam 14 with guide rail 19A.On the other hand, in the backhaul side, backhaul side front-wheel forms separately with guide rail 19B with guide rail 18B and backhaul rear flank wheel, and is bearing in respectively on the described longitudinal 13C by each support 20A, 20B.
Below be specifically described.As shown in Figure 2, the step 5b of backhaul side is with respect to the step 5a that goes the journey side, and its trailing wheel 5B is at the position walking of topmost, so the most close crossbeam 14 of trailing wheel 5B.On the other hand, the body side frame 13 about crossbeam 14 connects collapses to prevent them, and bears and going journey side front-wheel with guide rail 18A and step 5a that goes the journey side that goes journey side trailing wheel to walk on guide rail 19A and passenger's load etc.For this reason, it is the section bar of L shaped shape that the crossbeam 14 of present embodiment has used the cross section that is made of horizontal member 14A and vertical member 14B, wherein horizontal member 14A is the anti-member that collapses, it has the intensity that the body side frame 13 about can preventing collapses, and vertical member 14B is a supporting member, and it has the intensity of the load that can bear journey side pedal 5a.But, when obtaining to prevent the intensity that body side frame 13 collapses required, crossbeam 14 there is no need all to adopt the cross section on whole length be the section bar of L shaped shape, adopts horizontal member (the anti-member that the collapses) 14A of small bore just enough.Therefore, it is the section bar of L shaped shape that supporting in the crossbeam 14 goes the part of journey side step 5a and passenger's load etc. to adopt the cross section that is made of horizontal member (the anti-member that collapses) 14A and vertical member (supporting member) 14B, and be bearing in cantilevered fashion on the longitudinal 13C of body side frame 13, and other parts are owing to only rely on horizontal member 14A (anti-collapse member) just can fully guarantee to prevent the body side frame 13 required intensity of collapsing, so for the left and right sides trailing wheel 5B of the step 5b that makes the backhaul side guarantee and horizontal member 14A between have under the situation of minimal safety gap C2 as far as possible near horizontal member 14A, on vertical member 14B, formed each groove 21 respectively.And after forming for fear of groove 21, the step 5b of backhaul side produces interference near crossbeam 14, also about groove 21 between vertical member 14B on cut and formed groove 22.
By as above forming crossbeam 14, can make the step 5b of backhaul side when side direction is seen, pass the vertical member 14B walking of crossbeam 14, that is to say, the part in the direction of travel cross section of step 5b is walked in groove 21 and groove 22, consequently compare, can dwindle the height dimension H2 of the zone line 4C of framework 4 with present height dimension H1.That is, the height dimension H2 of framework 4 equals to play from the top of framework 4 clearance C 1 till the step 5a top of journey side, play the height dimension h1 till crossbeam 14 tops from the top of the step 5a that goes the journey side, the gauge t of crossbeam 14 horizontal member 14A, safe spacing C2 between the trailing wheel 5B of the bottom of horizontal member 14A and backhaul side step 5b, play the height dimension h3 till the step 5b bottom from the top of the trailing wheel 5B of backhaul side step 5b, the summation of the safe spacing C3 between the bottom of pedal 5b and the oil storage dish 15A and the height dimension h4 of oil storage dish 15A and base plate 15.In other words, compare with present height dimension H1, the trailing wheel 5B that height dimension H2 has dwindled backhaul side step 5b enters the size H of groove 21 under the situation of guaranteeing safe spacing C2
0, that is to say that height dimension H2 has dwindled the size H that trailing wheel 5B enters groove 21
0The size of+safe spacing C2.
In contrast to this, the height dimension H1 that does not form the escalator of the prior art of groove 21 equals to play from the top of framework 4 the spacing C1 till the step 5a of journey side, play the height dimension h1 till the crossbeam 14 from the top of the step 5a that goes the journey side, the height dimension h2 of crossbeam 14, safe spacing C2 ' between the trailing wheel 5B of the bottom of crossbeam 14 and backhaul side step 5b (=C2), play from the top of the trailing wheel 5B of backhaul side step 5b height dimension h3 ' till the step 5b bottom (=h3), safety gap C3 ' between the bottom of step 5b and the oil storage dish 15A (=C3) and the height dimension h4 ' of oil storage dish 15A and base plate 15 (=h4) summation, described height dimension is h2=t+C2+H
0, compare with present embodiment, increased size H
0+ C2.
So, according to present embodiment, the structure that does not need to comprise the pedal ( step 5,5a, 5b) of wheel (front-wheel A and trailing wheel 5B) is designed to special construction, just can dwindle the height dimension H2 of the zone line 4C of framework 4, so, when stair and passage etc. are provided with escalator 1, can make the excavation amount of stair and passage etc. be reduced to Min..
In addition, in the above-described embodiment, adopting integrally formed cross section with crossbeam 14 is that the section bar of L shaped shape is that example is described, but also can adopt the crossbeam 14 in the variation shown in Figure 3, also can obtain identical effect.In Fig. 3, the part identical with Fig. 1 and Fig. 2 adopts identical symbolic representation, and omits the detailed description that repeats.
Promptly, in this variation, crossbeam 14 is by being used to prevent that member that body side frame 13 collapses from being that member that the horizontal member 23 of rectangle small bore and being used to supports the step 5a of journey side and passenger's etc. load is that the vertical member 24 of square-section constitutes, and this vertical member 24 is connected with the Width end one of horizontal member 23 by known methods of attachment such as welding.
And, in vertical member 24, being formed with otch (recess) 25, the trailing wheel 5B of the step 5b of backhaul side guarantees between with respect to described horizontal member 23 to have under the situation of safe spacing by this otch.Walk in the space that forms by this otch 25 by the trailing wheel 5B that makes backhaul side step 5b, the step 5b of backhaul side is close with horizontal member 23 on all, consequently can dwindle the height dimension of the zone line 4C of framework 4.
In the above-described embodiment, be that example is described with the escalator 1 that is obliquely installed, but the present invention also go for special escalator 26 shown in Figure 4.In addition, in the application examples of Fig. 4, the part identical with Fig. 1 adopts identical symbolic representation, and omits the detailed description that repeats.
That is, the framework 4 of this escalator 26 is made of the Machine Room, top of the two end portions that is formed on length direction zone 4A and zone, Machine Room, bottom 4B, the inclination zone line 4D that removes Cheng Tongdao and backhaul passage that has been obliquely installed step 5 that links to each other with zone, Machine Room, top 4A and the horizontal zone line 4E that forms between this inclination zone line 4D and the regional 4B in Machine Room, described bottom.
In the escalator 26 that so constitutes, the structure in the cross section at the cross section at the B-B line place of inclination zone line 4D and the C-C line place of horizontal zone line 4E is formed as Fig. 2 or structure shown in Figure 3, thereby can dwindle the height dimension of framework 4.
Followingly the second embodiment of the present invention is described with reference to Fig. 5 and Fig. 6.In Fig. 1 to Fig. 4, as apparatus of passenger conveyor, the escalator 1,26 that is arranged on tilting zone is described, second embodiment is that example describes with the electronic passage 27 that is arranged on horizontal zone then.
The basic structure of electronic passage 27 is identical with escalator 1,26.Identical part adopts identical symbolic representation, and omits its detailed description.
Electronic passage 27 is arranged side by side on the GL of the footway of level, perhaps be arranged on mild tilting zone, and linearly extended framework 4 is by at first Machine Room zone 4a that is formed with the first Machine Room 10A and the second Machine Room 12A respectively of length direction two end portions and zone, second Machine Room 4b, constitute at the zone line 4c that forms between this zone, first Machine Room 4a and the regional 4b in second Machine Room.In the inside of this framework 4, go journey side wheel guide rail 28A and backhaul sidecar wheel guide rail 28B to be supported on the body side frame 13 by crossbeam 14 and support 20.
On the other hand, around being connected with a plurality of pedals 29 (29a, 29b) on the chain 17 that is arranged on the drive sprocket 9 that drives by actuating device 8 and the ring-type on the driven sprocket 11.And, at the front and back pivot suspension of the direction of travel of each pedal 29 wheel 30 of pair of right and left being arranged, each wheel 30 is walked under described guiding of removing journey side wheel guide rail 28A and backhaul sidecar wheel guide rail 28B.
In the electronic passage 27 that has as above-mentioned structure, form groove (recess) 31 at vertical member 14B crossbeam 14 and backhaul side pedal 29b subtend, walk in this groove 31 by the wheel 30 that makes backhaul side pedal 29b, the pedal 29b that can make the backhaul side is near the pedal 29a side of going the journey side, height dimension that consequently can reduced side framework 13, in other words, can dwindle the height dimension of the zone line 4c of framework 4.
Therefore, identical with first embodiment, the structure that does not need to comprise the pedal 29 of wheel 30 is designed to special construction, just can dwindle the height dimension of the zone line 4C of framework 4, so, when electronic passage 27 is set in existing passage, the excavation amount that has passage now can be limited in the Min..
In addition, the electronic passage 27 of second embodiment shown in Figure 5 is that example is described with the situation on the footway GL that is arranged on level, but self-evident, when on the footway of gentle slope electronic passage being set, also can adopt the present invention.
Claims (5)
1. apparatus of passenger conveyor has:framework, and this framework is arranged in the building structure, and is provided with the floor, gangway in the two end portions of length direction; A plurality of steps; These a plurality of steps connect into ring-type; In this framework, be directed and carry out loopy moving between journey side and the backhaul side going between the floor, described gateway; Described framework is made of zone, Machine Room and zone line; This zone, Machine Room is formed with the Machine Room in the two end portions of length direction; This zone line is positioned at the mid portion in zone, described Machine Room; And described framework by about body side frame and the crossbeam that the body side frame about described is coupled together consist of; Described apparatus of passenger conveyor is characterised in that
The bottom of the described crossbeam of in described zone line and step subtend described backhaul side is formed with recess, the part of the step by making described backhaul side is positioned at this recess, and the run trace of step that makes described backhaul side is near described run trace side of removing the step of journey side.
2. apparatus of passenger conveyor has: framework, and this framework is arranged in the building structure, and is provided with the floor, gangway in the two end portions of length direction; A plurality of steps, these a plurality of steps connect into ring-type, in this framework, be directed and circulate mobile between journey side and the backhaul side going between the floor, described gangway, described framework is made of zone, Machine Room and zone line, this zone, Machine Room is formed with the Machine Room in the two end portions of length direction, this zone line is positioned at the centre portion in zone, described Machine Room, and described framework by about body side frame and the crossbeam that the body side frame about described is coupled together constitute, go the load of the step of journey side to bear by described crossbeam, described apparatus of passenger conveyor is characterised in that
The described crossbeam of described zone line is made of anti-member and the supporting member of collapsing, the member that should anti-collapse has the intensity that can prevent that the body side frame about described from collapsing, near the body side frame of this supporting member about this anti-member that collapses described towards below outstanding the setting, have and to bear described intensity of removing the load of journey side step, thereby form recess by bottom at described crossbeam, make the part of the step of described backhaul side be positioned at this recess, and be close with the described anti-member that collapses, the run trace of step that makes described backhaul side is near described run trace side of removing the step of journey side.
3. apparatus of passenger conveyor has:framework, and this framework is arranged in the building structure, and is provided with the floor, gangway in the two end portions of length direction; A plurality of steps; These a plurality of steps connect into ring-type; In this framework, be directed and carry out loopy moving between journey side and the backhaul side going between the floor, described gateway; Described framework is made of zone, Machine Room and zone line; This zone, Machine Room is formed with the Machine Room in the two end portions of length direction; This zone line is positioned at the mid portion in zone, described Machine Room; And described framework by about body side frame and the crossbeam that the body side frame about described is coupled together consist of; Described apparatus of passenger conveyor is characterised in that
The bottom of the described crossbeam of in described zone line and step subtend described backhaul side is formed with recess, the part in the direction of travel cross section of the step by making described backhaul side is positioned at this recess, and the run trace of step that makes described backhaul side is near described run trace side of removing the step of journey side.
4. apparatus of passenger conveyor has: framework, and this framework is arranged in the building structure, and is provided with the floor, gangway in the two end portions of length direction; A plurality of steps, these a plurality of steps connect into ring-type, in this framework, be directed and circulate mobile between journey side and the backhaul side going between the floor, described gangway, described framework is made of zone, Machine Room and zone line, this zone, Machine Room is formed with the Machine Room in the two end portions of length direction, this zone line is positioned at the centre portion in zone, described Machine Room, and described framework by about body side frame and the crossbeam that the body side frame about described is coupled together constitute, go the load of the step of journey side to bear by described crossbeam, described apparatus of passenger conveyor is characterised in that
The described crossbeam of described zone line is made of anti-member and the supporting member of collapsing, the member that should anti-collapse has the intensity that can prevent that the body side frame about described from collapsing, near the body side frame of this supporting member about this anti-member that collapses described towards below outstanding the setting, have and to bear described intensity of removing the load of journey side step, thereby form recess by bottom at described crossbeam, make the part in direction of travel cross section of the step of described backhaul side be positioned at this recess, and be close with the described anti-member that collapses, the run trace of step that makes described backhaul side is near described run trace side of removing the step of journey side.
5. apparatus of passenger conveyor, has the framework that is arranged in the building structure, ring-type connects and the mobile a plurality of steps that circulate in this framework inside, guiding is by the wheel of described step pivot suspension and be arranged on and remove journey side rails and backhaul side rails in the described framework, described framework is by the zone, Machine Room that is formed with the Machine Room in the length direction two end portions, and the zone line that is positioned at the centre portion in zone, described Machine Room constitutes, and described framework by about body side frame, and the crossbeam that connects described left and right sides framework constitutes, the described position of going the journey side rails to be supported in the close described body side frame of described crossbeam, described apparatus of passenger conveyor is characterised in that
Be constituted as in the bottom of the described crossbeam of described zone line and step subtend described backhaul side and be formed with recess, the part of trailing wheel of step that makes described backhaul side is by in this recess, so that the run trace of the step of described backhaul side is near described run trace side of removing the step of journey side.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007060190A JP4426595B2 (en) | 2007-03-09 | 2007-03-09 | Passenger conveyor |
| JP2007-060190 | 2007-03-09 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100085038A Division CN101259935B (en) | 2007-03-09 | 2008-01-23 | Passenger conveying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101927939A true CN101927939A (en) | 2010-12-29 |
| CN101927939B CN101927939B (en) | 2012-11-28 |
Family
ID=39841405
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102834743A Active CN101927939B (en) | 2007-03-09 | 2008-01-23 | Passenger conveyor |
| CN2008100085038A Active CN101259935B (en) | 2007-03-09 | 2008-01-23 | Passenger conveying device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100085038A Active CN101259935B (en) | 2007-03-09 | 2008-01-23 | Passenger conveying device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4426595B2 (en) |
| CN (2) | CN101927939B (en) |
| HK (2) | HK1119641A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5298053B2 (en) * | 2010-03-15 | 2013-09-25 | 株式会社日立製作所 | Passenger conveyor |
| CN102485628B (en) * | 2010-12-02 | 2014-04-16 | 上海三菱电梯有限公司 | Passenger transporting device without metal truss structure as well as installation method and installation tool thereof |
| CN113029175B (en) * | 2021-03-11 | 2021-09-10 | 东莞职业技术学院 | Fast path planning method considering two-way multi-path points |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS582913B2 (en) * | 1976-04-09 | 1983-01-19 | 株式会社日立製作所 | man conveyor |
| AU737547B2 (en) * | 1997-06-17 | 2001-08-23 | Hitachi Building Systems Co., Ltd. | Passenger Transportation conveyor apparatus |
| JP4368178B2 (en) * | 2003-10-10 | 2009-11-18 | 東芝エレベータ株式会社 | Passenger conveyor |
-
2007
- 2007-03-09 JP JP2007060190A patent/JP4426595B2/en active Active
-
2008
- 2008-01-23 CN CN2010102834743A patent/CN101927939B/en active Active
- 2008-01-23 CN CN2008100085038A patent/CN101259935B/en active Active
- 2008-11-20 HK HK08112715.1A patent/HK1119641A1/en unknown
- 2008-11-20 HK HK11102254.4A patent/HK1148255A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP4426595B2 (en) | 2010-03-03 |
| CN101259935A (en) | 2008-09-10 |
| JP2008222340A (en) | 2008-09-25 |
| HK1119641A1 (en) | 2009-03-13 |
| HK1148255A1 (en) | 2011-09-02 |
| CN101927939B (en) | 2012-11-28 |
| CN101259935B (en) | 2011-01-26 |
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