CN101205036A - Lift system - Google Patents
Lift system Download PDFInfo
- Publication number
- CN101205036A CN101205036A CNA2007101865719A CN200710186571A CN101205036A CN 101205036 A CN101205036 A CN 101205036A CN A2007101865719 A CNA2007101865719 A CN A2007101865719A CN 200710186571 A CN200710186571 A CN 200710186571A CN 101205036 A CN101205036 A CN 101205036A
- Authority
- CN
- China
- Prior art keywords
- lift car
- elevator
- load carrier
- rope
- drive wheel
- 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.)
- Pending
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Classifications
-
- 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
- B66B1/46—Adaptations of switches or switchgear
- B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
-
- 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
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Elevator Control (AREA)
Abstract
An elevator system has a lower elevator car, an upper elevator car and a common counterweight in an elevator shaft. A support device has a first support strand and a second support strand. Each of the elevator cars is connected with the two support strands. In addition, a drive for driving the elevator cars is arranged in the elevator shaft. The drive includes four drive pulleys, wherein a first drive pulley and a second drive pulley are associated with the first support strand and the third drive pulley and the fourth drive pulley are associated with the second support strand.
Description
Technical field
The present invention relates to a kind of elevator device as described in the preamble according to claim 1.
Background technology
This kind elevator device for example can be known from EP-1329412 A1.Wherein said elevator device is included in two lift cars in the common elevator hoistways, and each lift car has actuator separately and only has common counterweight.
The shortcoming of the system that this is known especially is, is uneven for the driving or the traction of two lift cars.The result that this may cause load carrier for example to be loaded unevenly, this is undesirable.
Summary of the invention
The objective of the invention is to propose a kind of elevator device of kind described in the preamble as described,, can avoid the defective described in the background technology by described elevator device.
According to the present invention, for the elevator device in kind described in the described preamble, this purpose is realized by the feature of independent claims 1.
Preferred design and details according to elevator device of the present invention are limited by dependent claims.
Description of drawings
Other details of the present invention and advantage are described below in the mode of example and with reference to accompanying drawing, wherein:
Figure 1A is the lateral plan of first example of embodiments of the invention;
Figure 1B is the A-A ' view of the example of the embodiments of the invention shown in Figure 1A;
Fig. 1 C is the section-drawing of the line B-B ' of example in Fig. 1 of the embodiments of the invention shown in Figure 1A;
Lift car under Fig. 1 D illustrates shown in Figure 1A, but this time lift car has the fastening area that is used for the load carrier rope in last car zone;
Fig. 2 illustrates second example of removing outside the additional tightening device with as the identical embodiments of the invention of Figure 1A illustrated embodiment; And
Fig. 3 is the partial enlarged drawing of Figure 1B, and more details is shown.
Following content is applicable to accompanying drawing usually and further describes:
Accompanying drawing is not according to true scale;
Same or analogous composed component, or the composed component with same or analogous function are configured to identical Reference numeral in institute's drawings attached;
Refer to configuration separately in the accompanying drawing such as left and right, upper and lower statement;
Bending roller and turn to auxiliary cylinder to be expressed as black circle with cross-sectional plane substantially perpendicular to its S. A.;
Drive wheel is expressed as round line with the cross-sectional plane perpendicular to its S. A. substantially;
Be arranged on the load carrier rope between a lift car and the last counterweight bending roller or those parts or the extendible portion of tightening device rope, represent by the line of those parts that are different from the load carrier rope that is arranged between another lift car K2 and the last counterweight bending roller or tightening device rope;
Each extendible portion is by common diameter mark and have in Reference numeral 1 and 2 one and additionally point out to relate to one or two load carrier rope or tightening device rope in corresponding position in each case; In addition, point out to relate to which load carrier rope or tightening device rope.
The specific embodiment
Figure 1A, 1B and 1C illustrate first example according to the embodiment of elevator device 10 of the present invention.These are the lateral plan or the section-drawing of meaning property just, and primary element of the present invention makes an explanation based on described lateral plan or section-drawing.
The following lift car K1 of new elevator device 10 and last lift car K2 in common elevator hoistways 11 one on another, be provided with.Common counterweight 12 also is set in the elevator hoistways 11.Counterweight 12 is suspended on counterweight bending roller device 12.1 places with so-called 2: 1 hangs.Have more than the roller device of one cylinder and also can be understood by term " counterweight bending roller ".The speed of following lift car K1 is represented that by v1 the speed of last lift car K2 is represented by v2, and the speed of counterweight 12 is represented by v3.
The actuating device that is used to drive two lift cars is set on the upper area or actual elevator hoistways 11 tops.Actuating device comprises first device that is used for following lift car K1 and second actuating device that is used for lift car K2.
First actuating device relevant with following lift car K1 comprises the first motor M .A1 and the second motor M .B1.Motor M .A1 and M.B1 are synchronous (for example with electric means or synchronous in the electronics mode).The first motor M .A1 links to each other with the first drive wheel 13.A1.The second motor M .B1 links to each other with the second drive wheel 13.B1.
Second actuating device relevant with last lift car K2 comprises the 3rd drive motor M.AB21.The 3rd motor M .AB2 links to each other with 4 wheel driven driving wheel 13.B2 with the 3rd drive wheel 13.A2 by common axle, promptly in the preferred form of this embodiment, is provided for driving the common motor M .AB2 of two drive wheel 13.A2 and 13.B2.Yet, also can use two independent motors at this.
In this example of embodiment, the first drive wheel 13.A1 and the second drive wheel 13.A2 are associated with the first load carrier rope TA, and the 3rd drive wheel 13.B1 and 4 wheel driven driving wheel 13.B2 are associated with the second load carrier rope TB.
Being used for down, motor M .A1 and the drive wheel 13.A1 of lift car K1 are set at first height.Being used for down, motor M .B1 and the drive wheel 13.B1 of lift car K1 are set at second height similarly.Be used for the motor M .AB2 of lift car K2 and drive wheel 13.A2 and 13.B2 and be set at second height similarly.Second highly is positioned under first height.This layout is preferred, but not necessarily.
In addition, new elevator device 10 comprises a plurality of bending rollers, in this example, new elevator device 10 comprises the first bending roller 14.A1 and the second bending roller 14.A2 that is used for the first load carrier rope TA, the 4th bending roller 14.A3, the 14.B2 that is used for the 3rd bending roller 14.B1 of the second load carrier rope TB and is used for two load carrier rope TA and TB.
Following lift car K1 car area B 1 under it has the opposite side that first fastening area 15.1 and second fastening area, 15.11, the first fastening areas 15.1 and second fastening area 15.11 laterally are arranged on lift car K1.
Last lift car K2 car zone thereon has the 3rd fastening area 15.2 and the 4th fastening area 15.22, the 3rd fastening area 15.2 and the 4th fastening area 15.22 are similar at least and are provided with at the center and in this example of embodiment, in fact overlap at the 15.2/15.22 place.For the reason of drawings clear, their no horizontal compartment of terrains in Figure 1A illustrate.
Load carrier rope TA, TB are fixed on down the horizontal fastening area 15.1,15.11 of lift car K1 and the center fastening point 15.2/15.22 of last lift car K2, and each elevator K1 and K2 hang on load carrier rope TA and TB like this.Discussed in more detail below, lift car K1 and K2 hang on load carrier rope TA and TB with so-called 1: 1 hang.The first load carrier rope TA extends to down lift car K1 from first fastening area 15.1, and wherein the first load carrier rope TA upwards also directly is fastened to the first drive wheel 13.A1 by its first end.The first load carrier rope TA for example extends downwardly into counterweight bending roller 12.1 via the first bending roller 14.A1 and the second bending roller 14.A2 from the first drive wheel 13.A1.The first actuating device rope TA upwards extends to the center fastening area 15.2/15.22 that from then on the 3rd drive wheel 13.A2 also directly extends to lift car K2 via bending roller 14.A3 again from last counterweight bending roller 12.1, at center fastening area 15.2/15.22, the first load carrier rope TA is fastening by its second end.
The second load carrier rope TB extends up to down lift car K1 and directly extends to the second drive wheel 13.B1 from second fastening area 15.11.The second load carrier rope TA extends to counterweight bending roller 12.1 via the 4th bending roller 14.B1 downwards from the second drive wheel 13.B1.The second actuating device rope TB upwards extends to 4 wheel driven driving wheel 13.B2 via bending roller 14.B2 again from last counterweight bending roller 12.1, and from then on directly extends to the center fastening point 15.2/15.22 at lift car K2 place.
Two load carrier rope TA and TB extend to counterweight bending roller 12.1 respectively abreast and leave from this.
How Fig. 1 C shows load carrier rope TA and the TB directed force by being used for lift car K1.Fig. 1 D illustrates the alternative form about above-mentioned guidance mode.
Figure 1A, 2 and 3 is illustrated in drive wheel 13.A1, the 13.B1 in the uppermost region of elevator hoistways 11, the favourable configuration of 13.A2,13.B2.As shown in Figure 3, drive wheel 13.A1,13.B1,13.A2,13.B2 are provided with vertically, promptly have horizontal shaft.Be used for vertically guiding the guiding device of car K1 and K2 to comprise two fixing guide rails 19.1 and 19.11 at elevator hoistways 11, guide rail 19.1 and 19.11 opposite sides along elevator hoistways 11 extend vertically, and are anchored on elevator hoistways 11 in a not shown manner.Guiding device also comprises the guide body (not shown).Two guide body that cooperate with each guide rail 19.1 and 19.11 preferably are installed in the both sides of each car K1 and K2 with the arrangement that vertically aligns.Guide body in the side of car K1, K2 is preferably installed with the interval on the height of maximum possible.Guide rail 19.1 and 19.11 with respect to counterweight 12 tiltedly to being provided with.
The other guide piece that has two guide rails 19.2,19.22 be set at counterweight 12 narrow limit the zone and be used to guide counterweight 12.
The first load carrier rope TA that stretches out from first fastening point 15.1 of following lift car K1 extends along a side of the elevator hoistways 11 identical with a side of guide rail 19.1.The second load carrier rope TB that stretches out from second fastening point 15.11 of following lift car K1 extends along a side of the elevator hoistways 11 identical with a side of guide rail 19.11.
Fig. 1 C illustrates together lift car K1 once, but has the fastening point 15.1 and 15.11 in the car zone.
Fig. 2 illustrates second example of embodiments of the invention.Elevator device comprises the whole composed components described at Figure 1A, 1B and 1C and other device, so that fastening better load carrier rope TA and TB and guide lift car K1 better and K2 and counterweight 12.
For this purpose, the elevator device 10 according to Fig. 2 comprises the following counterweight bending roller 12.2 that hangs on counterweight 12.Lower area B1 at following lift car K1 is provided with the 5th fastening area 15.3 and the 6th fastening area 15.33 that in fact overlaps at the 15.3/15.33 place at the center.
The 7th fastening point 15.4 and the 8th fastening point 15.44 laterally are arranged on the opposite side of lift car K2, the lower area B2 of last lift car K2.In this example of embodiment, the 7th fastening point 15.4 and the 8th fastening point 15.44 be set at elevator hoistways 11, guide rail 19.1,19.11 extend sides near.
Alternatively, the 7th and the 8th fastening point 15.4,15.44 is set at the upper area of lift car K2.
Flexible tightening device SA, SB are made up of the first tightening device rope SA and the second tightening device rope SB basically.Each has first end and second end tightening device rope SA and SB.Preferably, each forms (for example forming by two belts or two hawsers) by two or more parallel tightening device elements among tightening device rope SA and the SB.Yet each tightening device rope SA and SB only also can comprise a belt or hawser.The carrying structure of these tightening device rope SA and SB is preferably made by steel, aramid fibre or h (Vectran).
First and second fastening areas 15.1,15.11 and the 5th and the 6th fastening area 15.3,15.33 are co-located in the lower area B 1 of car K1 or lower area B 1 or the upper area that each all is positioned at car K1.If first and second fastening areas 15.1,15.11 are positioned at the upper area of car K1, advantage is to use shorter load carrier rope TA, TB so.If first and second fastening areas 15.1,15.11 and the 5th and the 6th fastening area 15.3,15.33 are co-located in the lower area B1 of car K1, advantage is the simple structure of car K1 so.At this moment, power introducing structure is made of simple beam basically.
Similar viewpoint also is applicable to the 3rd, the 4th, the 7th and the 8th fastening area 15.2,15.22,15.4,15.44, these fastening areas or be positioned at the upper area of car K2 jointly or lay respectively at upper area or the lower area B2 of car K2.If the 7th and the 8th fastening area 15.4,15.44 is positioned at the lower area B2 of car K2, advantage is to use short tightening device rope SA, SB so.If the 7th and the 8th fastening area 15.4,15.44 and third and fourth fastening area 15.2,15.22 are positioned at the upper area of car K2 jointly, advantage is the simple structure of car K1 so.At this moment, power introducing structure is made of simple beam basically.
In addition, a plurality of bending rollers are set at the lower area of elevator hoistways 11.Two belt tensioning drum 16.B1,16.B2 being provided for two belt tensioning drum 16.A1, the 16.A2 of the first tightening device rope TA and being used for the second tightening device rope TB.In addition, be provided for two auxiliary cylinder 17.A1 and the 17.A2 of the first tightening device rope TA and two auxiliary cylinder 17.B1,17.B2 that are used for the second tightening device rope TB.In addition, provide pre-tensioning device 16.
The first tightening device rope SA is secured to down the fastening area 15.3/15.33 at the center of lift car K1 by its first end, and from fastening area 15.3/15.33 around belt tensioning drum 16.A1 and 16.A2 extend to down counterweight bending roller 12.2.The first tightening device rope SA extends to the 7th fastening area 15.4 of lift car K2 from following counterweight bending roller 12.2 via bending roller 17.A1 and 17.A2, and 15.4, the first tightening device rope SA are fastening by its second end at the 7th fastening area.
The second tightening device rope SB is fastened to down the fastening area 15.3/15.33 place at the center of lift car K1 by its first end, and extends to down counterweight bending roller 12.2 from the fastening area 15.3/15.33 at center around belt tensioning drum 16.B1 and 16.B2.The second tightening device rope SB extends to the 8th fastening area 15.44 of lift car K2 from following counterweight bending roller 12.2 via bending roller 17.B1 and 17.B2, and 15.44, the second tightening device rope SB are fastening by its second end at the 8th fastening area.
Fig. 3 is the enlarged drawing of Figure 1B, wherein shows the details that does not illustrate or be not clearly shown that in Fig. 1 C.Especially, show the first vertical centre plane E1, the second vertical centre plane E2, the first vertical diagonal line plane D1 and the second vertical diagonal line plane D2.
First fastening area 15.1 and second fastening area 15.11 be arranged in down car zone, opposite side, the opposite side of the first vertical centre plane E1 and the opposite side of the second vertical centre plane E2 of lift car K1 down, is introduced into lift car K1 (can not know and find out) so that guarantee (being balance) power of approximate centre symmetry in Fig. 3.The introducing of the power of this balance has the advantage of the less friction and wear of on guide rail appearance.In addition, the collision that maybe can become aware of that can hear that occurs in operational process significantly reduces.
Fastening area 15.2/15.22 is positioned at the center in the last car zone of lift car K1, so that also be introduced into (can not know and find out) in Fig. 3 at the center in this power.
At least three motor M .AB2, M.A1, the M.B1 that is used to drive four drive wheel 13.A, 13.A2,13.B1,13.B2 and provides additionally is provided Fig. 3.In the unshowned here alternative configuration, elevator device 10 additionally has the 4th motor that drives this drive wheel 13.B2.Therefore, in this configuration that substitutes, motor and each drive wheel 13.A, 13.A2,13.B1,13.B2 link.Elevator device by the routine that is associated with each lift car with motor compares, and is assigned to each car K1, K2 to two motor M .AB2, M.A1, M.B1 at most in the example shown.Therefore, single motor must produce the torque capacity that is equivalent to half, and can be designed to be much smaller thus.The advantage of this configuration is motor M .AB2, the M.A1 in the upper area of elevator hoistways 11, the extremely flexible and saving space, location of M.B1.
By bending roller 14.A1,14.A2,14.A3,14.B1,14.B2, load carrier rope TA, TB are directed to the rear side of elevator hoistways 11 respectively by drive wheel 13.A, 13.A2,13.B1, the 13.B2 of lift car K2 top, and from then on laterally turn over lift car K1, K2 to the direction of counterweight 12.These additional bending rollers make it possible to use littler drive wheel 13.A, 13.A2,13.B1,13.B2.Little drive wheel has the advantage that running elevator device 10 needs less driving torque.Even can adopt littler motor therefore.Thus can be in the upper area of elevator hoistways 11 more flexible and save ground, space positioning motor, drive wheel and bending roller.
In addition, because drive wheel 13.A, 13.A2,13.1,13 size are little, these drive wheels can be arranged to become leaning angle with respect to centre plane E2.In the example shown, drive wheel 13.A1,13.B1 are configured to become toward each other leaning angle and cooperate with relevant bending roller 14.A1,14.A2,14.B1, make it possible to correspondingly guide obliquely towards the projection of last counterweight bending roller 12.1 load carrier rope TA, the TB of lift car K2 top.The advantage of this guidance mode that extends together with leaning angle is to adopt littler last counterweight bending roller 12.1.
Because car K1, K2 only link to each other with counterweight 12 only by common load carrier TA, TB and because car K1, K2 1: 1 hangs and the particular form of suspension in 2: 1 of counterweight 12, depend on each running condition and obtain different speed v 1, v2 and v3.Car K2 is static if car K1 moves up with speed v 1, and counterweight 12 moves downward with v3=v1/2 so.Car K1 is static if car K2 moves downward with speed v 2, and counterweight 12 is with the v3=v2/2 upward movement so.If car K1, K2 are with identical speed v 1=v2 move toward one another, v3=0 so.If car K1 moves downward with identical speed v 1=v2 with car K2, counterweight 12 is with the v3=v1=v2 upward movement so.
Claims (12)
1. an elevator device has
Following lift car;
Last lift car;
Common counterweight;
Be used to carry down the load carrier of lift car and last lift car;
Be used to drive down the actuating device of lift car and last lift car, described actuating device is arranged in the hoistway;
And in common elevator hoistways, in described common elevator hoistways, last lift car and following lift car be vertical motion independently of each other, it is characterized in that,
Load carrier comprises first load carrier rope that has first and second ends and the second load carrier rope that has first and second ends,
Wherein, actuating device comprises four drive wheels, and described drive wheel is set,
Win drive wheel and second drive wheel are associated also with the first load carrier rope
Make the 3rd drive wheel and the four or two drive wheel be associated with the second load carrier rope.
2. elevator device according to claim 1, it is characterized in that, following lift car hangs at the state of two independent fastening areas respect to one another with balance, first end of the wherein said first load carrier rope is fixed to territory, first lateral areas, and first end of the wherein said second load carrier rope is fixed to second fastening area.
3. elevator device according to claim 1 and 2 is characterized in that, last lift car tightens on second end that the zone hangs on second end of the first load carrier rope and the second load carrier rope common center.
4. according to claim 1,2 or 3 described elevator devices, it is characterized in that described actuating device comprises four motors, i.e. motor of each drive wheel.
5. according to claim 1,2 or 3 described elevator devices, it is characterized in that described actuating device comprises first motor that is used to drive first drive wheel, the 3rd motor that is used to drive second motor of the 3rd drive wheel and is used for driving with common axle second drive wheel and 4 wheel driven driving wheel.
6. elevator device according to claim 3 is characterized in that, described fastening area respect to one another is set at down in the following car zone of elevator hoistways.
7. elevator device according to claim 3 is characterized in that, described fastening area respect to one another is set at down in the last car zone of elevator hoistways.
8. according to claim 3,6 or 7 described elevator devices, it is characterized in that the fastening area at described center is set at the last car zone of lift car.
9. according to each described elevator device in the claim of front, it is characterized in that, be provided with tightening device, described tightening device is applied to down downward pulling force on lift car and the last lift car, and links to each other with counterweight by one or more counterweight bending rollers down.
10. elevator device according to claim 9 is characterized in that, described tightening device comprises the biasing device that has two belt tensioning drums that are used for the first tightening device rope and have two other belt tensioning drum that is used for the second tightening device rope.
11. elevator device according to claim 10 is characterized in that, described tightening device rope is made by hawser or belt.
12., it is characterized in that described load carrier rope is made by hawser or belt according to each described elevator device in the claim of front.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06126175.6 | 2006-12-14 | ||
| EP06126175 | 2006-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205036A true CN101205036A (en) | 2008-06-25 |
Family
ID=37998351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101865719A Pending CN101205036A (en) | 2006-12-14 | 2007-12-12 | Lift system |
Country Status (7)
| Country | Link |
|---|---|
| KR (1) | KR20080055705A (en) |
| CN (1) | CN101205036A (en) |
| BR (1) | BRPI0705028A (en) |
| ES (1) | ES2365173T3 (en) |
| HK (1) | HK1122780A1 (en) |
| MY (1) | MY146187A (en) |
| SG (1) | SG144080A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105579378A (en) * | 2013-07-26 | 2016-05-11 | 智能电梯有限责任公司 | Elevators and counterweights moving independently in hoistway |
| CN105819305A (en) * | 2016-05-06 | 2016-08-03 | 广东铃木电梯有限公司 | Compensation transmission device of balancing weights of twin elevator |
| CN107531456A (en) * | 2015-04-27 | 2018-01-02 | 通力股份公司 | Equipment for the rate of tension of elevator traction component to be adjusted |
| CN110817654A (en) * | 2019-11-22 | 2020-02-21 | 山东富士制御电梯有限公司 | Single-shaft double-car elevator |
-
2007
- 2007-11-15 MY MYPI20072022A patent/MY146187A/en unknown
- 2007-12-07 ES ES07122665T patent/ES2365173T3/en active Active
- 2007-12-12 CN CNA2007101865719A patent/CN101205036A/en active Pending
- 2007-12-13 BR BRPI0705028-3A patent/BRPI0705028A/en not_active IP Right Cessation
- 2007-12-13 KR KR1020070129990A patent/KR20080055705A/en not_active Application Discontinuation
- 2007-12-13 SG SG200718678-6A patent/SG144080A1/en unknown
-
2008
- 2008-12-19 HK HK08113825.6A patent/HK1122780A1/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105579378A (en) * | 2013-07-26 | 2016-05-11 | 智能电梯有限责任公司 | Elevators and counterweights moving independently in hoistway |
| CN107531456A (en) * | 2015-04-27 | 2018-01-02 | 通力股份公司 | Equipment for the rate of tension of elevator traction component to be adjusted |
| CN107531456B (en) * | 2015-04-27 | 2019-12-20 | 通力股份公司 | Device for adjusting the tightness of an elevator traction means |
| CN105819305A (en) * | 2016-05-06 | 2016-08-03 | 广东铃木电梯有限公司 | Compensation transmission device of balancing weights of twin elevator |
| CN105819305B (en) * | 2016-05-06 | 2018-11-09 | 广东铃木电梯有限公司 | A kind of elevator balanced heavy compensation transmission device of Shuangzi |
| CN110817654A (en) * | 2019-11-22 | 2020-02-21 | 山东富士制御电梯有限公司 | Single-shaft double-car elevator |
| CN110817654B (en) * | 2019-11-22 | 2021-03-02 | 山东富士制御电梯有限公司 | Single-shaft double-car elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080055705A (en) | 2008-06-19 |
| ES2365173T3 (en) | 2011-09-23 |
| HK1122780A1 (en) | 2009-05-29 |
| BRPI0705028A (en) | 2008-08-12 |
| MY146187A (en) | 2012-07-13 |
| SG144080A1 (en) | 2008-07-29 |
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