CN104098008B - Machine-room-free elevator device - Google Patents

Machine-room-free elevator device Download PDF

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Publication number
CN104098008B
CN104098008B CN201410117973.3A CN201410117973A CN104098008B CN 104098008 B CN104098008 B CN 104098008B CN 201410117973 A CN201410117973 A CN 201410117973A CN 104098008 B CN104098008 B CN 104098008B
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China
Prior art keywords
elevator
bearing body
machine room
independent bearing
traction
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CN201410117973.3A
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CN104098008A (en
Inventor
邹志文
赵建兵
刘礼
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Yungtay Elevator Equipment China Co Ltd
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Yungtay Elevator Equipment China Co Ltd
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    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/104—Rope or cable structures twisted
    • D07B2201/1056—Rope or cable structures twisted using alternate lay, i.e. the wires or filaments in the strands being oppositely inclined relative to the rope axis
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The invention discloses a machine-room-free elevator device. The machine-room-free elevator device comprises a traction machine, a carriage, a counterweight, at least one guide wheel, a group of traction ropes and a control cabinet, wherein the suspension ratio is 1:1, and the machine-room-free elevator device is characterized in that each traction rope consists of an elastic body forming a traction rope body and a plurality of independent carrier bodies which are arranged in the elastic body and parallel to the traction rope body. By increasing the traction friction coefficient, reducing a wrap angle and reducing the diameter of the traction wheel and the guide wheel, the height of the top layer is reduced as far as possible, so that the 1:1 elevator structure without a machine room has the practical value. In addition, the traction friction coefficient is controlled through the elastic body material on the outer layer of the traction rope, so that the wrap angle is controlled, and the height of the top layer is greatly reduced from two aspects by controlling the structure of the traction rope and controlling the diameter of the traction wheel and the guide wheel.

Description

A kind of elevator without machine room
Technical field
The present invention relates to lift appliance, particularly to a kind of machine room 1:1 elevator device, more particularly to a kind of tool There is the machine room 1:1 lift appliance of the circular hoist ropes of parallel supporting body structure.
Background technology
Now widely used elevator device, it comprises a traction machine, a car and corresponding counterweight, and It is suspended on supporting on traction machine and drive the hoist ropes of more than two of car and counterweight.According to gb7588, " rule installed by elevator Model " requirement, traction calculates needs to meet Euler's formula:
t 1 t 2 ≤ e f α ;
Wherein, t1, t2For the tension force of traction sheave both sides, f is equlvalent coefficient of friction, and α is traction cornerite.In general, work as adopting During with steel wire rope as hoist ropes, the coefficient of friction under its various operating mode between 0.1～0.2, according to different grooveds and operating mode Under the conditions of equlvalent coefficient of friction, its traction cornerite is typically between 150 °～200 °.
For machine-roomless lift, due to the requirement of driving wheel cornerite, need to increase directive wheel to realize big traction Cornerite, this virtually increased headroom height.Therefore, Machineroom-less elevator system is generally hung ratio and cannot be adopted 1:1, otherwise by pole Big increase hoistway headroom height, causes greatly to build peace cost.
Secondly as the theoretical restriction of Fatigue Life of Steel Wire Rope, gb7588-2003 specify elevator traction sheave diameter d and The diameter d ratio (d/d ratio) minimum 40 of steel wire rope used.In the steel wire rope using minimum diameter 8mm, traction wheel diameter d is Little for 320mm.When using 1:1 hang than when, well headroom due to guide wheel diameter factor, also can increase more than 400mm Overhead, also have significant impact to headroom height.Therefore, Machineroom-less elevator system generally adopts the tracting structure of 2:1.
Suspension ratio with respect to 1:1, the elevator device of the suspension ratio of 2:1 increased 2-3 directive wheel, often runs a row Cheng Douhui bends 2-3 time than the elevator device of 1:1 more, and therefore, life-span of hoist ropes is by only the 1/4～1/3 of 1:1.Greatly Increased the repair and maintenance cost of elevator customer.
Meanwhile, the elevator device of the suspension ratio of 2:1 increased diversion sheave, elevator device weight in car top and counterweight top The presence that amount increases and diversion sheave rubs, elevator device energy consumption increases, and Operating ettectiveness declines.
Secondly, it is arranged on the diversion sheave of car top, cause the noise of car to increase, vibration increases, and impact passenger takes easypro Suitable sense.
Notification number is in the patent " lift appliance " of cn100341763c, discloses a kind of suspension than the machine room for 1:1 Lift appliance.Traction machine is arranged on hoistway bottom by this elevator, and multiple reverse rope sheaves are contained in beyond well headroom cage projection face Position, traction rope is passed through these pulleys and is connected car and counterweight with the hang of 1:1, thus completing transporting of elevator.Should Although device achieves the suspension ratio of 1:1, the diversion sheave quantity being connected to the hawser process of car both sides is unequal, makes Become two parts cable life inconsistent；Simultaneously as the presence of the frictional resistance of reverse rope sheave, asymmetric rope sheave layout, meeting Lead to the imbalance of elevator structure, affect elevator riding quality.
Notification number is a kind of patent " machine-roomless lift " of cn2626110y, discloses a kind of suspension ratio inorganic for 1:1 Machine room-free elevator, traction machine and directive wheel are arranged on well headroom by this elevator, by after-combustion mode, wire rope roll are wound on traction sheave On directive wheel, two ends connect car and counterweight, one of this two pulley of device in the perspective plane of car, due to adopting Traditional steel wire rope, its traction sheave and reverse wheel diameter are all larger.Therefore lead to dramatically increasing of well headroom bulk, greatly Improve and build peace cost.
Content of the invention
The technical problem to be solved is for the problems of existing machine room 1:1 elevator device to carry For a kind of machine room 1:1 lift appliance of the circular hoist ropes with parallel supporting body structure, this lift appliance is draged by increase Draw coefficient of friction, reduce cornerite, and reduce the diameter of traction sheave and directive wheel so that headroom height reduces so that no as far as possible Machine room 1:1 elevator structure has the value of practicality.In addition this lift appliance controls traction by hoist ropes elastic body outer material Coefficient of friction, thus controlling cornerite, by controlling hoist ropes structure control traction sheave and guiding wheel diameter, great in terms of two Reduce headroom height.
The technical problem to be solved can be realized by the following technical programs:
A kind of elevator without machine room, including a traction machine, a car, a counterweight, at least one directive wheel, one group of traction Rope and switch board, its hang than for 1:1 it is characterised in that described hoist ropes, by an elastomer constituting hoist ropes body and many Root is arranged at internal and parallel with the hoist ropes body independent bearing body of described elasticity and constitutes.
The section of described hoist ropes is circle.
The described elastomer constituting hoist ropes body is made up of non-metal elastomers material, it is preferred to use polyurethane rubber, Neoprene, hydrogenated nitrile-butadiene rubber or the enhanced neoprene of nylon short fibre are made.
Because elastomer allows for effectively mitigating the pressure between adjacent independent bearing body and Relative sliding, therefore Should possess certain between the surface of hoist ropes body must being made up of elastomer and nearest independent bearing body surface face and close The thickness s of reason.The determination of this thickness s is also contemplated that the requirement of hoist ropes bearing capacity, structural stability and economy.Comprehensively examine Consider, between the surface of elastomer of composition hoist ropes and nearest independent bearing body surface face, thickness s is in 0.3mm-1.5mm scope Interior.
Described hoist ropes, its independent bearing body is made up of metal wire, in one embodiment of the invention, described independence Supporting body is by being made up of high intensity carbon steel wire.
Described hoist ropes, its independent bearing body is made up of the steel wire rope with helical structure of twisting.
Described hoist ropes, its many independent bearing bodies are in uniform way circumferentially in the described bullet constituting hoist ropes body In gonosome, described each independent bearing body is separate, there is certain interval to avoid independence between adjacent independent bearing body Friction and wear between supporting body；The circle distribution of independent bearing body makes hoist ropes have the characteristic of isotropic, is easy to Install.
Described hoist ropes, its many independent bearing bodies, from have s twist with the fingers to Steel cord thread independent bearing body Quantity and from have z twist with the fingers to Steel cord thread independent bearing body quantity equal, and all have s twist with the fingers to steel Cord core thread independent bearing body and all from have z twist with the fingers to Steel cord thread independent bearing body in same circle Uniform interleaved arrangement on week.As s-z-s-z-s ... through this arrangement, form centrosymmetry in the plane.Traction Rope in tension, s twist with the fingers to the supporting body left-hand torque and the z that produce twist with the fingers to the right-hand torque of supporting body generation mutually balance, Hoist ropes will not produce rotation in tension.
The section of described independent bearing body is circle, and its diameter is in 0.5mm～3.5mm.
In a preferred embodiment of the invention, in the described elastomer constituting hoist ropes body, all of independence Supporting body adopts one layer of circle spacing uniform.
In a preferred embodiment of the invention, in described elastomer, all of independent bearing body is radially carried out Multilayer concentric circle distribution, every layer of independent bearing body is uniform in the same circle spacing, and the wherein outer layer same circle spacing is uniform Often two neighboring independent bearing body in independent bearing body is centrally formed a trough, internal layer same circle spacing with elastomer Uniform independent bearing body respectively falls in these troughs.
In a preferred embodiment of the invention, every layer of independent bearing body quantity is all equal.
In a preferred embodiment of the invention, uniform each independent bearing body diameter of same circle spacing is homogeneous Deng, but the diameter of internal layer same circle spacing uniform independent bearing body is less than adjacent outward layer same circle spacing uniform independence The diameter of supporting body.
Described traction sheave, its diameter d is by the maximum gauge d of independent bearing body in described hoist ropesmaxDetermine, meet Relational expression: d >=40dmax.
According to the maximum gauge of independent bearing body in existing hoist ropes, directive wheel controlled diameter system is in below 140mm.
Described traction sheave, its race grooved is u-shaped, and angular aperture is at 35 °～45 °.Because hoist ropes employs coat, Coefficient of friction larger it is not necessary to V-shaped or uc type traction groove.
In order to reduce overhead as far as possible, the coefficient of friction between described traction sheave and hoist ropes controls 0.3～0.6 Between.Coefficient of friction is the important parameter determining traction relation, and coefficient of friction is too small, traction cornerite can be made excessive so that inorganic Room 1:1 hang does not enable.Coefficient of friction is excessive, then may lead to can not to meet under the cornerite of structure more optimization stagnant Stay working condition requirement.
Described lift appliance, its traction cornerite is 70 °～120 °, reduces headroom height, cornerite in order to minimum degree Preferably at 80 °～90 °.According to existing traction condition, traction cornerite can be controlled in 70 °～120 °, but in order to reduce as far as possible Headroom height, the optimal case being placed in the directive wheel placement of well headroom is the limit near well headroom, the level of its minimum point Face is not less than the horizontal plane of traction sheave minimum point.
In an example, in order to adjust suitable traction cornerite, an adjustment cornerite guide wheel is arranged on below traction machine, institute The race stating adjustment cornerite guide wheel is consistent with the race direction of traction sheave.
Described traction machine is fixed on car guide rail, and is connected to hoistway wall by auxiliary stand, in order to reduce to hoistway The vibration of wall, is completely cut off using rubber between auxiliary stand and wall of well.
The lift appliance of the present invention passes through to increase traction coefficient of friction, reduces cornerite, and reduces traction sheave and directive wheel Diameter is so that headroom height reduces as far as possible so that machine room 1:1 elevator structure has the value of practicality.In addition this elevator dress Put and traction coefficient of friction is controlled by hoist ropes elastic body outer material, thus controlling cornerite, by controlling traction rope structure control Traction sheave processed and guiding wheel diameter, greatly reduce headroom height in terms of two.
Brief description
Fig. 1 is the lift appliance structural representation of the embodiment of the present invention 1
Fig. 2 is the lift appliance hoist ropes structural representation of the embodiment of the present invention 1.
Fig. 3 is the lift appliance hoist ropes structural representation of the embodiment of the present invention 2.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the invention are elaborated, but protection scope of the present invention be not limited to following Embodiment.
Embodiment 1
As shown in figure 1, the machine room 1:1 lift appliance shown in figure, in hoistway 1, traction machine 2 is arranged on the sedan-chair of side On railway carriage or compartment guide rail 7, pass through in auxiliary stand 8 connection and hoistway wall 1b simultaneously.In order to reduce the vibration to hoistway wall 1b, auxiliary Completely cut off using rubber between support 8 and hoistway wall 1b.
Car 3 and counterweight 4 are linked together by hoist ropes 6 and hang on traction sheave 2a and directive wheel 5.Hoist ropes 6 with Traction cornerite between traction sheave 2a is passed through adjustment traction sheave 2a and is realized with directive wheel 5, controls at 70～120 °, in order to Little degree reduces headroom height, and traction cornerite is preferably at 80 °～90 °.In order to reduce hoistway headroom height as far as possible, directive wheel 5 leads to Cross support to be arranged on well headroom 1a, and make its limit make the minimum point level of this directive wheel 5 near well headroom 1a simultaneously Face is higher than the minimum point horizontal plane of traction sheave 2a.
Adjust traction cornerite, below traction machine 2, above counterweight 4, mounting and adjusting bag in order to more easily small range Angle guide wheel 9, and make hoist ropes 6 pass through to adjust cornerite guide wheel 9.Adjustment cornerite guide wheel 9 and traction machine 2 are distributed in the two of hoist ropes 6 Side.The race of adjustment cornerite guide wheel 9 is consistent with the race direction of traction sheave 2a.The race grooved of traction sheave 2a is u-shaped, angular aperture At 35 °～45 °.Because hoist ropes 6 employs coat, coefficient of friction larger it is not necessary to V-shaped or uc type traction groove.
As shown in Fig. 2 shown in figure for lift appliance hoist ropes 6, it is by the elasticity constituting hoist ropes body Body 1 and 6 independent bearing bodies 2 are formed, and the section of its hoist ropes 6 is circle, and the elastomer 1 constituting hoist ropes body is using non- Metal elastic elastomer material, specially polyurethane rubber are made.Can certainly be using neoprene, hydrogenation nitrile rubber or nylon The neoprene of short fiber reinforced is made.
6 independent bearing bodies 2 directly engage in elastomer 1, and are configured elastomer 1 institute of hoist ropes body completely Cover.In view of traction rope structure isotropism and structural compactness, 6 independent bearing bodies 2 are distributed on same circumference, adjacent The center of independent bearing body 2 is 60 ° with the angle of the center of circle o line formation of the elastomer 1 constituting hoist ropes body.
Every independent bearing body 2 is all made using metal material, and specifically every independent bearing body 2 is to adopt high strength carbon Plain steel wire is twisted into the steel wire rope of diameter 0.5mm-3.5mm, and specially 1+9+9 watt woods gulps down formula structure.
The moment of torsion producing for balance rope twisting, 6 independent bearing bodies 2 are divided into right-laid (s twist with the fingers to) and left-hand lay (z sth. made by twisting To) two kinds, the two quantity is equal, and it is distributed on same circumference with certain spacing in the way of being spaced, adjacent two Interval t between independent bearing body 2 is 0.2～2mm.The center of each independent bearing body 2 is to the center of circle of elastomer 1 apart from d2Phase Deng such hoist ropes shows as no torsion.
In order to provide preferable support and wearability, the outermost circular surfaces of elastomer 1 constituting hoist ropes body are away from nearest Independent bearing body 2 between thickness s be 0.3-1.5mm.
The diameter d of traction sheave 2a is by the maximum gauge d of the independent bearing body 2 in hoist ropes 6maxDetermine, meet relational expression: d ≥40dmax.
According to the maximum gauge of independent bearing body 2 in existing hoist ropes 6, directive wheel controlled diameter system is in below 140mm.
In order to reduce overhead as far as possible, the coefficient of friction between traction sheave 2a and hoist ropes 6 control 0.3～0.6 it Between.Coefficient of friction is the important parameter determining traction relation, and coefficient of friction is too small, traction cornerite can be made excessive so that machine room 1:1 hang does not enable.Coefficient of friction is excessive, then may lead to can not meet delay under the cornerite of structure more optimization Working condition requirement.
Embodiment 2
The difference of the machine room 1:1 lift appliance of this embodiment is that the structure of hoist ropes 6 is different, and remaining structure is homogeneous With.
For the support increasing hoist ropes Fracture Force and provide the independent bearing body 2 to outer layer, as shown in Fig. 2 this is real Apply example all of independent bearing body and radially carry out in the elastomer 1 that two-layer concentric circular is distributed in composition hoist ropes body, every layer Independent bearing body the same circle spacing uniform it is contemplated that structural compactness, the diameter of the independent bearing body 3 of internal layer is less than outer The diameter of the independent bearing body 2 of layer, the often two neighboring independent bearing in outer layer same circle spacing uniform independent bearing body 3 Body 3 forms a trough with the center of circle o in elastomer 1 section constituting hoist ropes body, internal layer same circle spacing uniform only Vertical supporting body 2 respectively falls in these troughs.
The center of internal layer same circle spacing uniform each independent bearing body 2 is to the elastomer 1 constituting hoist ropes body The center of circle o in section apart from d3Equidistantly.The center of outer layer same circle spacing uniform each independent bearing body 3 is to elastomer 1 The center of circle in section apart from d3Equidistantly.Between uniform adjacent two piece independent bearing body 2,3 of inside and outside layer same circle spacing Interval t, t1For 0.2～2mm.

Claims (22)

1. a kind of elevator without machine room, including switch board, a traction machine, a car, a counterweight, one group of hoist ropes and at least Individual directive wheel, the suspension of described elevator without machine room constitutes hoist ropes by one than for 1:1 it is characterised in that described hoist ropes The elastomer of body is arranged at internal and parallel with the hoist ropes body independent bearing body of described elasticity with Duo Gen and constitutes；
Each described independent bearing body is separate, there is certain interval between adjacent independent bearing body；
In described elastomer, all of independent bearing body radially carries out the distribution of two-layer concentric circular, every layer of independent bearing body Uniform in the same circle spacing, often two neighboring independent bearing body in outer layer same circle spacing uniform independent bearing body with Elastomer be centrally formed a trough, internal layer same circle spacing uniform independent bearing body respectively falls in these troughs.
2. elevator without machine room as claimed in claim 1 is it is characterised in that the section of described hoist ropes is circle.
3. elevator without machine room as claimed in claim 1 it is characterised in that described composition hoist ropes body elastomer by Non-metal elastomers material is made.
4. elevator without machine room as claimed in claim 1 is it is characterised in that the elastomer of described composition hoist ropes body is adopted Made with polyurethane rubber, neoprene or hydrogenated nitrile-butadiene rubber.
5. elevator without machine room as claimed in claim 1 is it is characterised in that the elastomer of described composition hoist ropes body Between surface and nearest independent bearing body surface face, thickness (s) is in the range of 0.3mm-1.5mm.
6. elevator without machine room as claimed in claim 1 is it is characterised in that described independent bearing body is made up of metal wire.
7. elevator without machine room as claimed in claim 1 is it is characterised in that described independent bearing body is by high intensity carbon Steel wire is made.
8. elevator without machine room as claimed in claim 1 is it is characterised in that described independent bearing body has spiral shell by twisting The steel wire rope of rotation structure is made.
9. elevator without machine room as claimed in claim 1 is it is characterised in that uniform only of described outer layer same circle spacing Vertical supporting body, from have s twist with the fingers to Steel cord thread independent bearing body and from have z twist with the fingers to steel wire rope heart yearn make Independent bearing body constitute, from have s twist with the fingers to Steel cord thread independent bearing body and from have z twist with the fingers to steel wire rope The quantity of core thread independent bearing body is equal, and all have s twist with the fingers to Steel cord thread independent bearing body and All from have z twist with the fingers to the uniform interleaved arrangement on the same circumference of outer layer of Steel cord thread independent bearing body.
10. elevator without machine room as claimed in claim 1 it is characterised in that described independent bearing body section be circle, Its a diameter of 0.5mm～3.5mm.
11. elevator without machine room as claimed in claim 1 are it is characterised in that every layer of independent bearing body quantity is all equal.
12. elevator without machine room as claimed in claim 1 are it is characterised in that uniform each independence of same circle spacing Supporting body diameter is all equal, but the diameter of internal layer same circle spacing uniform independent bearing body is less than the same circumference of adjacent outward layer The diameter of independent bearing body uniformly at intervals.
13. elevator without machine room as claimed in claim 1 it is characterised in that traction sheave in described traction machine straight Footpath d is by the maximum gauge d of the independent bearing body in described hoist ropesmaxDetermine, meet relational expression:
d≥40dmax.
14. elevator without machine room as claimed in claim 13 are it is characterised in that described directive wheel diameter control is in 140mm Below.
15. elevator without machine room as claimed in claim 13 are it is characterised in that the race grooved of described traction sheave is u Type, angular aperture is between 35 °～45 °.
16. elevator without machine room as claimed in claim 13 are it is characterised in that between described traction sheave and hoist ropes Coefficient of friction controls between 0.3～0.6.
17. elevator without machine room as claimed in claim 13 are it is characterised in that draging between described hoist ropes and traction sheave Draw cornerite and be 70 °～120 °.
18. elevator without machine room as claimed in claim 13 are it is characterised in that draging between described hoist ropes and traction sheave Draw cornerite and be 80 °～90 °.
19. elevator without machine room as claimed in claim 13 are it is characterised in that described directive wheel is placed on the limit near well Road top, and the horizontal plane of minimum point is not less than the position of the horizontal plane of traction sheave minimum point.
20. elevator without machine room as described in claim 17 or 18 are it is characterised in that install in the lower section of described traction machine There is an adjustment cornerite directive wheel, the race of described adjustment cornerite directive wheel is consistent with the race direction of traction sheave.
21. elevator without machine room as claimed in claim 1 it is characterised in that described traction machine is fixed on car guide rail, And be connected on hoistway wall by auxiliary stand.
22. elevator without machine room as claimed in claim 21 are it is characterised in that between described auxiliary stand and wall of well Completely cut off using rubber.
CN201410117973.3A 2014-03-26 2014-03-26 Machine-room-free elevator device Active CN104098008B (en)

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Application Number Priority Date Filing Date Title
CN201410117973.3A CN104098008B (en) 2014-03-26 2014-03-26 Machine-room-free elevator device

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CN104098008B true CN104098008B (en) 2017-01-25

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104229593A (en) * 2014-03-14 2014-12-24 永大电梯设备（中国）有限公司 Elevator with small driving sheave wrap angle

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CN2651218Y (en) * 2003-09-29 2004-10-27 上海爱登堡电梯有限公司 Elevator without engine room
CN101384768A (en) * 2006-02-15 2009-03-11 株式会社普利司通 Steel cord, rubber-steel cord composite and tire
CN101977834A (en) * 2008-01-18 2011-02-16 通力股份公司 Rope for a hoisting device, elevator and use
CN102869596A (en) * 2010-04-12 2013-01-09 因温特奥股份公司 Supporting means for an elevator system
CN203333104U (en) * 2013-05-28 2013-12-11 日立电梯（中国）有限公司 Pulling rope elevator

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Publication number Priority date Publication date Assignee Title
JPH07197388A (en) * 1993-12-28 1995-08-01 Kokoku Kousensaku Kk Steel cord and rubber composite using the same
JP2004001915A (en) * 2002-05-30 2004-01-08 Otis Elevator Co Elevator device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2651218Y (en) * 2003-09-29 2004-10-27 上海爱登堡电梯有限公司 Elevator without engine room
CN101384768A (en) * 2006-02-15 2009-03-11 株式会社普利司通 Steel cord, rubber-steel cord composite and tire
CN101977834A (en) * 2008-01-18 2011-02-16 通力股份公司 Rope for a hoisting device, elevator and use
CN102869596A (en) * 2010-04-12 2013-01-09 因温特奥股份公司 Supporting means for an elevator system
CN203333104U (en) * 2013-05-28 2013-12-11 日立电梯（中国）有限公司 Pulling rope elevator

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