EP2512968B1 - Lift facility with double decker - Google Patents

Lift facility with double decker Download PDF

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Publication number
EP2512968B1
EP2512968B1 EP20100784545 EP10784545A EP2512968B1 EP 2512968 B1 EP2512968 B1 EP 2512968B1 EP 20100784545 EP20100784545 EP 20100784545 EP 10784545 A EP10784545 A EP 10784545A EP 2512968 B1 EP2512968 B1 EP 2512968B1
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EP
European Patent Office
Prior art keywords
belt
lift
lift cage
rollers
elevator car
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20100784545
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German (de)
French (fr)
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EP2512968A1 (en
Inventor
Josef Husmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
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Inventio AG
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Filing date
Publication date
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Priority to EP20100784545 priority Critical patent/EP2512968B1/en
Publication of EP2512968A1 publication Critical patent/EP2512968A1/en
Application granted granted Critical
Publication of EP2512968B1 publication Critical patent/EP2512968B1/en
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    • 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
    • B66B11/0206—Car frames
    • 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
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
    • B66B1/42—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings separate from the main drive
    • 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
    • B66B11/0206—Car frames
    • B66B11/0213—Car frames for multi-deck cars
    • B66B11/022—Car frames for multi-deck cars with changeable inter-deck distances

Definitions

  • the invention relates to an elevator installation with at least one elevator car carrier which can accommodate two or more elevator cars.
  • the invention relates to the field of elevator systems, which are designed as so-called biplane elevator systems.
  • the known elevator has a car frame in which two elevator cars are arranged vertically one above the other.
  • the two elevator cars are each on a support with pulleys, which are guided around the pulleys hoisting ropes.
  • a drive unit is provided on the cabin frame, around which the hoisting rope is guided.
  • the object of the invention is to provide an elevator system, which has an improved structure. Specifically, it is an object of the invention to provide an elevator system in which the space remaining for the elevator cars space is optimized and an adjustment of the two elevator cars can be done to each other in an advantageous manner.
  • the elevator cage carrier can be arranged in an elevator shaft in an advantageous manner, wherein a Drive unit is provided which serves to actuate the elevator car carrier.
  • the elevator car carrier can be moved along the intended roadway.
  • the elevator car carrier can be suspended from a traction device connected to the elevator car carrier.
  • the traction means may in this case be guided in a suitable manner via a traction sheave of a drive machine unit.
  • the traction means in addition to the function of transmitting the force or torque of the prime mover unit to the elevator car carrier to actuate the elevator car carrier, also have the function of supporting the elevator car carrier.
  • Actuation of the elevator car carrier here means, in particular, lifting or lowering of the elevator car carrier in the elevator shaft.
  • the elevator car carrier can be guided by one or more guide rails in the elevator shaft.
  • rollers are attached to the first elevator car, around which the belt is guided, that at least one roller is mounted on the elevator car carrier, around which the belt is guided, and that the belt is connected to the rollers mounted on the first elevator car and the attached to the elevator car carrier roller forms a pulley for adjusting the first elevator car.
  • the torque applied by the drive unit for adjusting the first elevator car can be reduced.
  • the required power of the drive unit can be reduced.
  • a multiple suspension with a belt for example, a belt with tension members, which have a diameter of 1.7 mm be realized in combination with a roller effective diameter of 87 mm, wherein the belt height is about 3 mm.
  • a cable results in comparison, for example, a rope diameter of 8 mm and a working diameter of the sheaves of 240 mm.
  • the required space is significantly reduced.
  • the second elevator car is arranged adjustably on the elevator car carrier, that the second elevator car is adjustable by the drive unit by means of the belt relative to the elevator car carrier, and that with an adjustment of the first elevator car and the second elevator car relative to the elevator car carrier the first elevator car and the second elevator car are adjustable in mutually opposite Verstellraumen.
  • rollers are arranged on the elevator car carrier, on which the second elevator car is suspended over the belt.
  • the belt has a first side and a second side facing away from the first side and that the first side serves as a contact side, at which the belt is guided around a drive wheel of the drive unit and around rollers and to which the belt is bent , and that the second side serves as a free rear side, to which the belt is at least substantially not bent.
  • one or more guide rollers may be provided which cooperate to guide the belt to the free rear of the belt.
  • Such a guide roller can be arranged, for example, on the elevator car carrier. Specifically, the same direction guidance of the belt to the drive wheel and the rollers can be realized. This embodiment is particularly advantageous in a profiled belt.
  • a first end of the belt is connected to a cross member of the elevator car carrier.
  • the belt is guided from its first end to at least two rollers attached to the first elevator car. Further, the belt is guided to at least two rollers, which are fixed to the cross member. Further, the belt is guided laterally down the first elevator car. In this case, the belt forms a loop between its first end and the rollers mounted on the cross member, in which the first elevator car is suspended. In such a guide arrangement of the belt, the belt is bent substantially in the same direction around the rollers.
  • two additional rollers are attached to the cross member and two additional rollers are attached to the first elevator car.
  • the first end of the belt is also connected to the cross member and guided as described above to two rollers on the first elevator car and then to two rollers on the cross member, wherein the belt forms a first loop.
  • the belt is guided to the two additional rollers on the first elevator car and from there to the two additional rollers on the cross member. It forms the Belt a second loop in which the first elevator car is suspended.
  • the belt is guided laterally down the first elevator car.
  • the arrangement of the additional rollers on the cross member and on the elevator car are designed so that the two loops of the belt are guided conflict-free. This can be achieved by the additional rollers are arranged horizontally and / or vertically offset on the first elevator car respectively on the cross member. By arranging further rollers on the cross member and on the first elevator car, three or more slings can be realized.
  • the second elevator car can accordingly be suspended in the same direction in one or more loops of the belt at a further cross member.
  • at least two rollers are attached to the second elevator car and a second end of the belt is connected to the further cross member.
  • the belt is guided from its second end to the two rollers on the second elevator car and from there laterally on the second elevator car upwards.
  • a second and further loops can be realized in each case by means of two additional rollers on the further cross member and by means of two additional rollers on the second elevator cage.
  • the belt has a first side and a second side facing away from the first side, that the first side serves as a first contact side on which the belt is guided around a drive wheel of the drive unit and around rollers and to which Belt is bent, and that the second side serves as a second contact side, to which the belt is guided around rollers and to which the belt is bent.
  • This can take up space for the arrangement of the belt and the rollers be optimized within the elevator car carrier.
  • a desired pulley can be realized with a reduced number of roles.
  • this embodiment is suitable for a flat belt or a belt which is profiled on both sides.
  • the belt has at least one rib on at least one contact side.
  • the rib may specifically have a V-shaped profile.
  • a plurality of ribs are configured on the contact side, which are each configured at least approximately V-shaped.
  • Other embodiments of the profile of the rib are possible.
  • the rib may have a trapezoidal profile.
  • a further belt which holds the first and second elevator car down.
  • a first end of the further belt is connected to the elevator car carrier and a second end of the further belt is connected to the elevator car carrier.
  • the ends are each connected to a respective cross member of the elevator car carrier.
  • the further belt holds the first and second elevator car down each on two rollers each attached to an associated elevator car.
  • the further belt thus constitutes a sub-tensioning means, which prevents a hopping of the first and second elevator cars in the event of an abrupt stop. As a result, it is ensured even during an emergency braking that the first and the second elevator car essentially always remain in a stationary position in relation to the elevator car carrier.
  • Fig. 1 shows an elevator system 1 with at least one elevator car carrier 2, which is movable in a provided for a drive of the elevator car carrier 2 driving space 3.
  • the driving space 3 may be provided in an elevator shaft of a building.
  • the elevator car carrier 2 is suspended by a plurality of pulleys 5, 6 on a traction means 8.
  • a traction means 8 For clarity, was in Fig. 1 omitted to represent the course of the traction device 8 between the pulleys 5, 6.
  • the traction means 8 is guided directly from the pulley 5 to the pulley 6.
  • the traction means 8 is also about a traction sheave 9 a Drive machine unit 10 out.
  • the elevator car carrier 2 is moved upwards or downwards through the driving area.
  • a first elevator car 11 and a second elevator car 12 are arranged at the elevator car carrier 2.
  • the two elevator cars 11, 12 relative to the elevator car carrier 2 are adjustable.
  • cross members 13, 14, 15 are formed, which are connected to longitudinal members 16, 17 of the elevator car carrier 2.
  • the pulleys 5, 6 are arranged.
  • a drive unit 18 is attached to the cross member 13.
  • the drive unit 18 is used to drive a belt 19.
  • the belt 19 is guided around a drive wheel 20 of the drive unit 18.
  • One end 21 of the belt 19 is connected to the cross member 13.
  • Another end 22 of the belt 19 is connected to the cross member 14 of the elevator car carrier 2.
  • a longitudinal direction 24 of the elevator car carrier 2 is determined.
  • the longitudinal members 16, 17 of the elevator car carrier 2 are in this case aligned along the longitudinal direction 24.
  • the cross members 13 to 15 are arranged perpendicular to the longitudinal direction 24 between the longitudinal members 16, 17.
  • the belt 19 is reciprocated several times between the cross member 13 and the first elevator car 11.
  • the belt 19, starting from the fixed end 21, is initially guided counter to the longitudinal direction 24 to a roller 26 fastened to the first elevator car 11.
  • Belt 19 is guided around the roller 26 and in the longitudinal direction 24 to a roller 27 fastened to the cross member 13.
  • the belt 19 is then again guided against the longitudinal direction 24 to a roller 28 attached to the first elevator car 11. From the roller 28, the belt 19 is guided transversely to the longitudinal direction 24 to a further roller 29 fastened to the first elevator car 11.
  • the belt 19 is first in the longitudinal direction 24 to a roller 30 fixed to the cross member 13, then opposite to the longitudinal direction 24 to a fixed to the first elevator car 11 roller 31 and then along the longitudinal direction 24 to the drive wheel 20 of the drive unit 18 led.
  • the belt 19 is bent both to its first side 32 and to its second side 33.
  • the first side 32 of the belt 19 rests on the drive wheel 20 of the drive unit 18, while the second side 33 is remote from the drive wheel 20 in the region of the drive wheel 20.
  • the first elevator car 11 is arranged on a first carrier 34, which is guided in the longitudinal direction 24 on the elevator car carrier 2.
  • the second elevator car 12 is arranged on a second carrier 35, which is guided in the longitudinal direction 24 on the elevator car carrier 2.
  • the belt 19 runs from the drive wheel 20 of the drive unit 18 against the longitudinal direction 24 to a guide roller 36. Further, the belt 19 is guided around the guide roller 36, and further guide rollers 37, 38. The guide rollers 36 to 38 are connected to the elevator car carrier 2. From the guide roller 38 of the belt 19 is further guided to a guide roller 39, which with the Cross member 14 is connected.
  • the belt 19 is guided several times in and counter to the longitudinal direction 24.
  • the belt 19 between the cross member 14 and the second elevator car 12 is reciprocated.
  • the belt 19 of the guide roller 39 runs opposite to the longitudinal direction 24 to a roller 41 which is connected to the second elevator car 12, then in the longitudinal direction 24 to a roller 42 connected to the cross member 14 and then against the longitudinal direction 24 to a
  • the belt 19 is guided transversely to the longitudinal direction 24 along the second elevator car 12 from the roller 43 to a roller 44 connected to the second elevator car 12.
  • the belt 19 is guided in the longitudinal direction 24 to a roller 45 connected to the cross member 14, then opposite to the longitudinal direction 24 to a roller 46 connected to the second elevator car 12 and then again in the longitudinal direction 24 to the cross member 14, wherein the end 22 is connected to the cross member 14.
  • a further belt 50 is provided in this embodiment, which is designed according to the belt 19.
  • one end 51 of the belt 50 is connected to the cross member 14.
  • Another end 52 of the belt 50 is connected to the cross member 15.
  • the belt 50 in this embodiment has the function of holding the first elevator car 11 and the second elevator car 12 from below. In this way, for example, when an emergency braking is triggered, while the elevator car carrier 2 moves upwards through the driving space 3, a reliable transfer of the braking forces from the elevator car carrier 2 to the two elevator cars 11, 12 is achieved.
  • the belt 50 is guided from its end 51 in the longitudinal direction 24 about a roller 53 connected to the first carrier 34. Then, the belt 50 is guided transversely to the longitudinal direction 24 to another roller 54 connected to the first carrier 34. Of the roller 54 of the belt 50 is guided against the longitudinal direction 24 on the second elevator car 2 laterally over to a roller 55. The roller 55 is in this case connected to the cross member 15. From the roller 55, the belt 50 is guided in the longitudinal direction 24 to a roller 56 connected to the second carrier 35. From the roller 56, the belt 50 is guided transversely to the longitudinal direction 24 to a roller 57. From the roller 57, the belt 50 is guided against the longitudinal direction 24 to the cross member 15, wherein the end 52 is connected to the cross member 15.
  • the two elevator cars 11, 12 are suspended on the belt 19.
  • a pulley for the first elevator car 11 is formed in the area 25.
  • a pulley for the second elevator car 12 is formed in the area 40. Since the two pulleys have the same gear ratios, the adjustment paths with respect to the first elevator car 11 and the second elevator car 12 are the same size.
  • the drive unit 18 is effectively arranged between the two pulley assemblies. A shortening of the length of the belt 19 in the region 25 thus leads to an extension of the belt 19 in the region 40 and vice versa.
  • the second elevator car 12 is adjusted counter to the adjustment direction 24 relative to the elevator car carrier 2.
  • the elevator cars 11, 12 are always adjusted in straight opposite directions.
  • the rollers 27, 30 of the pulley assembly in the area 25 are fixedly arranged on the elevator car carrier 2 and that the rollers 42, 45 are also arranged on the cross member 14 fixed to the elevator car carrier 2.
  • a vote on the belt 50 is thus ensured, since a shortening of the belt 50 between the end 52 and the roller 55 just the required extension between the roller 55 and the end 51 results. In this way, in particular, it can be achieved that a predetermined tension of the belt 50 is always maintained.
  • the roller 55 may be acted upon by a spring element 58.
  • the belt 19 and the belt 50 serve different functions, so that they can be subjected to different loads. This can be done in different ways an adaptation to the particular application.
  • a parallel guide of four belts 19 may be provided.
  • a parallel guide of two belts 50 may be configured.
  • the belts 19, 50 can in this case be guided over correspondingly broad rollers 26 to 31, 41 to 46, 53 to 57 and guide rollers 36 to 39.
  • belt 19, 50 uniformly configured belt can be used.
  • the belt 19 is bent both to its first side 32 and to its second side 33.
  • the belt 19 on the roller 31 is bent to the second side 33 while being bent on the roller 30 to the first side 32.
  • the elevator cars 11, 12 are respectively clamped between the belts 19, 50, a high stability of the elevator car carrier 2 with the elevator cars 11, 12 can be achieved.
  • the first elevator car 11 has a relatively high height and / or that the second elevator car 12 has a relatively high height.
  • the extensions of the elevator cars 11, 12 in the longitudinal direction 24 can be set relatively large.
  • a lateral distance of the elevator cars 11, 12 can be reduced to the side rails 16, 17.
  • the belt 19 or the belt 50 can be guided close to the longitudinal members 16, 17, whereby the space remaining for the elevator cars 11, 12 is further increased.
  • a large part of the available shaft cross-section in the driving space 3 can be used by the elevator cars 11, 12.
  • Fig. 2 shows the in Fig. 1 labeled II section of the elevator system 1 according to a second embodiment in a schematic representation.
  • a further roller 60 is arranged in addition to the rollers 26, 28 on the first elevator car 11.
  • a further roller 61 is arranged next to the rollers 29, 31 on the first elevator car 11.
  • a further roller 62 is arranged next to the roller 27 on the cross member 13.
  • a further roller 63 is arranged.
  • this embodiment is a alternative guidance of the belt 19 shown in the area 25 for the realization of a pulley.
  • the belt 19 is clockwise from its end 21 about the roller 60, then the roller 61, the roller 63, the roller 62, the roller 28, the roller 29, the roller 30, the roller 27, the roller 26, the roller 31, a arranged on the cross member 13 guide roller 64 and then a guide roller 65, which is also arranged on the cross member 13, out.
  • the guide roller 65 the belt 19 is then guided against the longitudinal direction 24 laterally along the first elevator car 11 down.
  • a pulley arrangement is realized in which the belt 19 always rests with its first side 32 on the individual rollers 26, 27, 28, 29, 30, 31, 60, 61, 62, 63, 64, 65.
  • the belt 19 is always bent toward its first side 32. Counter bends are prevented or at least substantially avoided.
  • the belt 19 may also abut against individual guide rollers 36 with its second side 33 and thus also be slightly bent to the second side 33.
  • the guide roller 64 may also be replaced by the drive wheel 20 of the drive unit 18.
  • the belt 19 may be guided only on the first side 32 serving as the front side 32, wherein the second side 33 serves as a free back 33. Depending on the configuration of the belt 19, a load on the belt 19 can thereby be reduced.
  • a pulley arrangement can be realized in a corresponding manner.
  • Fig. 3 shows a profile of the belt 19 according to a possible embodiment in a schematic representation.
  • the belt 19 may be configured as a V-ribbed belt and have a plurality of ribs 70, 71, 72.
  • each of the ribs 70 to 72 may have an approximately V-shaped cross-section.
  • the embodiment with ribs 70 to 72 is provided on the first side 32.
  • the second side 33 is configured flat.
  • the belt 19 is profiled on one side, namely on the first side 32.
  • the first side 32 serves as a contact side.
  • Such a belt comes for example in the basis of the Fig. 2 illustrated second embodiment for use.
  • the belt 19 may also be profiled on both sides 32, 33.
  • ribs 70 to 72 may also be configured on the second side 33.
  • Such a belt 19 is preferably in the basis of the Fig. 1 described first embodiment used.
  • a belt 19 configured as a flat belt 19 it is also possible for a belt 19 configured as a flat belt 19 to be used.
  • the first side 32 is designed flat.
  • the first side 32 is then corresponding to the second side 33, as shown in the Fig. 3 is illustrated, designed.
  • a certain surface structure may be provided in order to improve a friction during the interaction with the drive wheel 20 of the drive unit 18.
  • one of the sides 32, 33 or both sides 32, 33 serve as contact pages.
  • the belt 19 may also be configured as a toothed belt 19.
  • a belt 19 which is designed flat on at least one of its sides 32, 33, the flat side 32, 33 is preferably guided over a cambered roller or the like.
  • the guide surface of the cambered roller is configured convexly curved. Furthermore, the convex guide surface is preferably bounded by lateral shoulders for guiding the belt 19.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Aufzuganlage mit zumindest einem Aufzugkabinenträger, der zwei oder mehr Aufzugkabinen aufnehmen kann. Speziell betrifft die Erfindung das Gebiet der Aufzuganlagen, die als sogenannte Doppeldecker-Aufzuganlagen ausgestaltet sind.The invention relates to an elevator installation with at least one elevator car carrier which can accommodate two or more elevator cars. Specifically, the invention relates to the field of elevator systems, which are designed as so-called biplane elevator systems.

Stand der TechnikState of the art

Aus der JP 2007-331871 A ist ein Doppeldecker-Aufzug bekannt. Der bekannte Aufzug weist einen Kabinenrahmen auf, in dem zwei Aufzugkabinen vertikal übereinander angeordnet sind. Die beiden Aufzugkabinen stehen jeweils auf einem Träger mit Seilrollen, wobei um die Seilrollen Hubseile geführt sind. Außerdem ist an dem Kabinenrahmen eine Antriebseinheit vorgesehen, um die das Hubseil geführt ist. Durch Betätigen des Hubseils mittels der Antriebseinheit können die so aufgehängten Aufzugkabinen relativ zu dem Kabinenrahmen angehoben und abgesenkt werden. Hierdurch können die beiden Aufzugkabinen innerhalb des Kabinenrahmens unterschiedlich positioniert werden.From the JP 2007-331871 A is a double-decker elevator known. The known elevator has a car frame in which two elevator cars are arranged vertically one above the other. The two elevator cars are each on a support with pulleys, which are guided around the pulleys hoisting ropes. In addition, a drive unit is provided on the cabin frame, around which the hoisting rope is guided. By operating the hoisting rope by means of the drive unit, the elevator cars suspended in this way can be raised and lowered relative to the car frame. As a result, the two elevator cars can be positioned differently within the cabin frame.

Der aus der JP 2007-331871 A bekannte Doppeldecker-Aufzug hat den Nachteil, dass der für die Aufhängung und Verstellung der Aufzugkabinen vorgesehene Mechanismus einen relativ großen Platzbedarf hat. Beispielsweise benötigen die Seilrollen der oberen Aufzugkabine, an denen die obere Aufzugkabine aufgehängt ist, einen gewissen Bauraum, der bei vorgegebenem Bauraum des Kabinenrahmens den verbleibenden Raum für die Aufzugkabine sowohl vertikal als auch horizontal einschränkt. Dies gilt auch für die untere Aufzugkabine. Somit ergibt sich speziell in Bezug auf die architektonisch vorgegebenen Schachtabmessungen eine Reduzierung des für die Aufzugkabinen verbleibenden Querschnitts, was kleinere Aufzugkabinen zur Folge hat. Außerdem wird auch der Platzbedarf in vertikaler Richtung vergrößert, was zusätzliche Anforderungen an die Ausgestaltung des Aufzugschachtes bezüglich seiner Endbereiche erfordert.The from the JP 2007-331871 A known double-decker elevator has the disadvantage that provided for the suspension and adjustment of the elevator cars mechanism a relatively large Has space requirements. For example, the pulleys of the upper elevator car, to which the upper elevator car is suspended, require a certain amount of installation space, which restricts the remaining space for the elevator car both vertically and horizontally for a given installation space of the car frame. This also applies to the lower elevator car. This results in a reduction of the remaining for the elevator cabins cross section, especially with respect to the architecturally predetermined manhole dimensions, resulting in smaller elevator cabins result. In addition, the space requirement in the vertical direction is increased, which requires additional requirements for the design of the elevator shaft with respect to its end portions.

Aus WO 2007 074206 ist eine Aufzugsanlage nach dem Oberbegriff von Anspruch 1 bekannt.Out WO 2007 074206 an elevator installation according to the preamble of claim 1 is known.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, eine Aufzuganlage zu schaffen, die einen verbesserten Aufbau aufweist. Speziell ist es eine Aufgabe der Erfindung, eine Aufzuganlage zu schaffen, bei der der für die Aufzugkabinen verbleibende Raum optimiert ist und eine Verstellung der beiden Aufzugkabinen zueinander in vorteilhafter Weise erfolgen kann.The object of the invention is to provide an elevator system, which has an improved structure. Specifically, it is an object of the invention to provide an elevator system in which the space remaining for the elevator cars space is optimized and an adjustment of the two elevator cars can be done to each other in an advantageous manner.

Die Aufgabe wird durch eine erfindungsgemäße Aufzuganlage mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by an elevator system according to the invention with the features of claim 1.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterführungen der im Anspruch 1 angegebenen Aufzuganlage möglich.The measures listed in the dependent claims advantageous developments of the elevator system specified in claim 1 are possible.

Bei der Ausgestaltung der Aufzuganlage kann der Aufzugkabinenträger in vorteilhafter Weise in einem Aufzugschacht angeordnet sein, wobei eine Antriebsmaschineneinheit vorgesehen ist, die zum Betätigen des Aufzugkabinenträgers dient. Dadurch kann der Aufzugkabinenträger entlang der vorgesehenen Fahrbahn verfahren werden. Hierbei kann der Aufzugkabinenträger an einem mit dem Aufzugkabinenträger verbundenen Zugmittel aufgehängt sein. Das Zugmittel kann hierbei in geeigneter Weise über eine Treibscheibe einer Antriebsmaschineneinheit geführt sein. Hierbei kann das Zugmittel neben der Funktion des Übertragens der Kraft oder des Moments der Antriebsmaschineneinheit auf den Aufzugkabinenträger, um den Aufzugkabinenträger zu betätigen, auch die Funktion haben, den Aufzugkabinenträger zu tragen. Unter einer Betätigung des Aufzugkabinenträgers ist hierbei insbesondere ein Heben oder Senken des Aufzugkabinenträgers in dem Aufzugschacht zu verstehen. Dabei kann der Aufzugkabinenträger durch eine oder mehrere Führungsschienen in dem Aufzugschacht geführt sein.In the embodiment of the elevator system, the elevator cage carrier can be arranged in an elevator shaft in an advantageous manner, wherein a Drive unit is provided which serves to actuate the elevator car carrier. As a result, the elevator car carrier can be moved along the intended roadway. In this case, the elevator car carrier can be suspended from a traction device connected to the elevator car carrier. The traction means may in this case be guided in a suitable manner via a traction sheave of a drive machine unit. Here, the traction means, in addition to the function of transmitting the force or torque of the prime mover unit to the elevator car carrier to actuate the elevator car carrier, also have the function of supporting the elevator car carrier. Actuation of the elevator car carrier here means, in particular, lifting or lowering of the elevator car carrier in the elevator shaft. In this case, the elevator car carrier can be guided by one or more guide rails in the elevator shaft.

Vorteilhaft ist es, dass an der ersten Aufzugkabine Rollen angebracht sind, um die der Riemen geführt ist, dass an dem Aufzugkabinenträger zumindest eine Rolle angebracht ist, um die der Riemen geführt ist, und dass der Riemen mit den an der ersten Aufzugkabine angebrachten Rollen und der an dem Aufzugkabinenträger angebrachten Rolle einen Flaschenzug zum Verstellen der ersten Aufzugkabine bildet. Hierdurch kann das von der Antriebseinheit zum Verstellen der ersten Aufzugkabine aufgebrachte Moment reduziert werden. Hierdurch kann die erforderliche Leistung der Antriebseinheit reduziert werden.It is advantageous that rollers are attached to the first elevator car, around which the belt is guided, that at least one roller is mounted on the elevator car carrier, around which the belt is guided, and that the belt is connected to the rollers mounted on the first elevator car and the attached to the elevator car carrier roller forms a pulley for adjusting the first elevator car. As a result, the torque applied by the drive unit for adjusting the first elevator car can be reduced. As a result, the required power of the drive unit can be reduced.

Durch die Zusammenwirkung des Riemens mit den Rollen ist eine optimierte Ausgestaltung möglich. Bei einer Mehrfachaufhängung mit einem Riemen kann beispielsweise ein Riemen mit Zugträgern, die einen Durchmesser von 1.7 mm aufweisen, in Kombination mit einem Rollenwirkdurchmesser von 87 mm realisiert werden, wobei die Riemenhöhe etwa 3 mm beträgt. Bei der Ausgestaltung mit einem Seilzug ergibt sich im Vergleich beispielsweise ein Seildurchmesser von 8 mm und ein Wirkdurchmesser der Seilscheiben von 240 mm. Somit ist der benötigte Bauraum erheblich reduziert.The interaction of the belt with the rollers an optimized design is possible. In a multiple suspension with a belt, for example, a belt with tension members, which have a diameter of 1.7 mm be realized in combination with a roller effective diameter of 87 mm, wherein the belt height is about 3 mm. In the embodiment with a cable results in comparison, for example, a rope diameter of 8 mm and a working diameter of the sheaves of 240 mm. Thus, the required space is significantly reduced.

Vorteilhaft ist es, dass die zweite Aufzugkabine verstellbar an dem Aufzugkabinenträger angeordnet ist, dass die zweite Aufzugkabine von der Antriebseinheit mittels des Riemens relativ zu dem Aufzugkabinenträger verstellbar ist und dass bei einer Verstellung der ersten Aufzugkabine und der zweiten Aufzugkabine relativ zu dem Aufzugkabinenträger die erste Aufzugkabine und die zweite Aufzugkabine in zueinander entgegengesetzte Verstellrichtungen verstellbar sind. Hierbei ist es ferner vorteilhaft, dass an dem Aufzugkabinenträger Rollen angeordnet sind, an denen die zweite Aufzugkabine über den Riemen aufgehängt ist. Somit kann durch Antreiben des Riemens eine gleichzeitige Verstellung der beiden Aufzugkabinen zueinander erfolgen. Da die Verstellrichtungen der beiden Aufzugkabinen entgegengesetzt zueinander sind, addiert sich die Geschwindigkeit der Verstellbewegungen der beiden Aufzugkabinen in Bezug auf eine Änderung des Abstands der beiden Aufzugkabinen zueinander.It is advantageous that the second elevator car is arranged adjustably on the elevator car carrier, that the second elevator car is adjustable by the drive unit by means of the belt relative to the elevator car carrier, and that with an adjustment of the first elevator car and the second elevator car relative to the elevator car carrier the first elevator car and the second elevator car are adjustable in mutually opposite Verstellrichtungen. In this case, it is also advantageous that rollers are arranged on the elevator car carrier, on which the second elevator car is suspended over the belt. Thus, by driving the belt, a simultaneous adjustment of the two elevator cars to each other. Since the adjustment directions of the two elevator cars are opposite to each other, the speed of the adjustment movements of the two elevator cars is added to each other with respect to a change in the distance between the two elevator cars.

Vorteilhaft ist es, dass der Riemen eine erste Seite und eine von der ersten Seite abgewandte zweite Seite aufweist und dass die erste Seite als Kontaktseite dient, an der der Riemen um ein Antriebsrad der Antriebseinheit und um Rollen geführt ist und zu der der Riemen gebogen ist, und dass die zweite Seite als freie Rückseite dient, zu der der Riemen zumindest im Wesentlichen nicht gebogen ist. Hierdurch können Gegenbiegungen in dem Riemen zumindest weitgehend vermieden sein. Allerdings können eine oder mehrere Führungsrollen vorgesehen sein, die zum Führen des Riemens mit der freien Rückseite des Riemens zusammenwirken. Solch eine Führungsrolle kann beispielsweise an dem Aufzugkabinenträger angeordnet sein. Speziell kann eine gleichsinnige Führung des Riemens um das Antriebsrad und die Rollen realisiert sein. Diese Ausgestaltung ist speziell bei einem profilierten Riemen von Vorteil.It is advantageous that the belt has a first side and a second side facing away from the first side and that the first side serves as a contact side, at which the belt is guided around a drive wheel of the drive unit and around rollers and to which the belt is bent , and that the second side serves as a free rear side, to which the belt is at least substantially not bent. This allows counterbending in the belt at least largely avoided be. However, one or more guide rollers may be provided which cooperate to guide the belt to the free rear of the belt. Such a guide roller can be arranged, for example, on the elevator car carrier. Specifically, the same direction guidance of the belt to the drive wheel and the rollers can be realized. This embodiment is particularly advantageous in a profiled belt.

Insbesondere ist bei einer gleichsinnigen Führung des Riemens ein erstes Ende des Riemens mit einem Querträger des Aufzugkabinenträgers verbunden. Der Riemen ist von seinem ersten Ende zu mindestens zwei Rollen geführt, die an der ersten Aufzugkabine befestigt sind. Weiter ist der Riemen zu mindestens zwei Rollen geführt, die am Querträger befestigt sind. Weiter ist der Riemen seitlich entlang der ersten Aufzugkabine nach unten geführt. Dabei bildet der Riemen zwischen seinem ersten Ende und den am Querträger angebrachten Rollen eine Schlinge, in der die erste Aufzugkabine aufgehängt ist. Bei einer solchen Führungsanordnung des Riemens ist der Riemen im wesentlichen gleichsinnig um die Rollen gebogen.In particular, when the belt is guided in the same direction, a first end of the belt is connected to a cross member of the elevator car carrier. The belt is guided from its first end to at least two rollers attached to the first elevator car. Further, the belt is guided to at least two rollers, which are fixed to the cross member. Further, the belt is guided laterally down the first elevator car. In this case, the belt forms a loop between its first end and the rollers mounted on the cross member, in which the first elevator car is suspended. In such a guide arrangement of the belt, the belt is bent substantially in the same direction around the rollers.

In einer weiteren Ausführung einer gleichsinnigen Führung des Riemens sind zwei zusätzliche Rollen am Querträger sowie zwei zusätzliche Rollen an der ersten Aufzugkabine befestigt. Hierbei ist das erste Ende des Riemens ebenfalls mit dem Querträger verbunden und wie zuvor beschrieben zu zwei Rollen an der ersten Aufzugkabine und dann zu zwei Rollen am Querträger geführt, wobei der Riemen eine erste Schlinge bildet. Weiter ist der Riemen zu den zwei zusätzlichen Rollen an der ersten Aufzugkabine und von dort zu den zwei zusätzlichen Rollen am Querträger geführt. Dabei bildet der Riemen eine zweite Schlinge, in der die erste Aufzugkabine aufgehängt ist. Schliesslich ist der Riemen seitlich entlang der ersten Aufzugkabine nach unten geführt. Die Anordnung der zusätzlichen Rollen am Querträger und an der Aufzugkabine sind so ausgelegt, dass die beiden Schlingen des Riemens konfliktfrei geführt sind. Dies ist erreichbar indem die zusätzlichen Rollen an der ersten Aufzugkabine respektive am Querträger horizontal und/oder vertikal versetzt angeordnet sind. Mittels Anordnung weiterer Rollen am Querträger und an der ersten Aufzugkabine sind drei oder mehr Schlingen realisierbar.In a further embodiment of the same directional guidance of the belt, two additional rollers are attached to the cross member and two additional rollers are attached to the first elevator car. Here, the first end of the belt is also connected to the cross member and guided as described above to two rollers on the first elevator car and then to two rollers on the cross member, wherein the belt forms a first loop. Further, the belt is guided to the two additional rollers on the first elevator car and from there to the two additional rollers on the cross member. It forms the Belt a second loop in which the first elevator car is suspended. Finally, the belt is guided laterally down the first elevator car. The arrangement of the additional rollers on the cross member and on the elevator car are designed so that the two loops of the belt are guided conflict-free. This can be achieved by the additional rollers are arranged horizontally and / or vertically offset on the first elevator car respectively on the cross member. By arranging further rollers on the cross member and on the first elevator car, three or more slings can be realized.

Die zweite Aufzugkabine kann entsprechend in einer oder mehreren Schlingen des Riemens an einem weiteren Querträger gleichsinnig aufgehängt sein. Dazu sind mindestens zwei Rollen an der zweiten Aufzugkabine befestigt und ein zweites Ende des Riemens mit dem weiteren Querträger verbunden. Der Riemen ist von seinem zweiten Ende zu den beiden Rollen an der zweiten Aufzugkabine und von dort seitlich an der zweiten Aufzugkabine nach oben geführt. Eine zweite und weitere Schlingen sind jeweils mittels zwei zusätzlicher Rollen am weiteren Querträger sowie mittels zwei zusätzlicher Rollen an der zweiten Aufzugkabine realisierbar.The second elevator car can accordingly be suspended in the same direction in one or more loops of the belt at a further cross member. For this purpose, at least two rollers are attached to the second elevator car and a second end of the belt is connected to the further cross member. The belt is guided from its second end to the two rollers on the second elevator car and from there laterally on the second elevator car upwards. A second and further loops can be realized in each case by means of two additional rollers on the further cross member and by means of two additional rollers on the second elevator cage.

Allerdings ist es auch vorteilhaft, dass der Riemen eine erste Seite und eine von der ersten Seite abgewandte zweite Seite aufweist, dass die erste Seite als erste Kontaktseite dient, an der der Riemen um ein Antriebsrad der Antriebseinheit und um Rollen geführt ist und zu der der Riemen gebogen ist, und dass die zweite Seite als zweite Kontaktseite dient, zu der der Riemen um Rollen geführt ist und zu der der Riemen gebogen ist. Hierdurch kann ein Platzbedarf für die Anordnung des Riemens und der Rollen innerhalb des Aufzugkabinenträgers optimiert werden. Gegebenenfalls kann auch ein gewünschter Flaschenzug mit einer reduzierten Anzahl an Rollen realisiert werden. Speziell eignet sich diese Ausgestaltung bei einem Flachriemen oder bei einem Riemen, der beidseitig profiliert ist.However, it is also advantageous that the belt has a first side and a second side facing away from the first side, that the first side serves as a first contact side on which the belt is guided around a drive wheel of the drive unit and around rollers and to which Belt is bent, and that the second side serves as a second contact side, to which the belt is guided around rollers and to which the belt is bent. This can take up space for the arrangement of the belt and the rollers be optimized within the elevator car carrier. Optionally, a desired pulley can be realized with a reduced number of roles. Specifically, this embodiment is suitable for a flat belt or a belt which is profiled on both sides.

Vorteilhaft ist es, dass der Riemen an zumindest einer Kontaktseite zumindest eine Rippe aufweist. Hierbei kann die Rippe speziell ein V-förmiges Profil aufweisen. Vorzugsweise sind mehrere Rippen an der Kontaktseite ausgestaltet, die jeweils zumindest näherungsweise V-förmig ausgestaltet sind. Auch andere Ausgestaltungen des Profils der Rippe sind möglich. Beispielsweise kann die Rippe ein trapezförmiges Profil aufweisen.It is advantageous that the belt has at least one rib on at least one contact side. Here, the rib may specifically have a V-shaped profile. Preferably, a plurality of ribs are configured on the contact side, which are each configured at least approximately V-shaped. Other embodiments of the profile of the rib are possible. For example, the rib may have a trapezoidal profile.

Vorteilhaft ist es auch, dass ein weiterer Riemen vorgesehen ist, der die erste und zweite Aufzugkabine nach unten hält. Hierbei ist ein erstes Ende des weiteren Riemens mit dem Aufzugkabinenträger verbunden und ein zweites Ende des weiteren Riemens mit dem Aufzugkabinenträger verbunden. Insbesondere sind die Enden jeweils mit je einem Querträger des Aufzugkabinenträgers verbunden. Der weitere Riemen hält die erste und zweite Aufzugkabine jeweils an zwei Rollen, die je an einer zugeordneten Aufzugkabine befestigt sind, nach unten. Der weitere Riemen stellt also ein Unterspannmittel dar, das ein Hüpfen der ersten und zweiten Aufzugkabine bei einem abrupten Stopp verhindert. Dadurch ist selbst bei einer Notbremsung gewährleistet, dass die erste und die zweite Aufzugkabine im Wesentlichen stets in einer stationären Position in Relation zum Aufzugkabinenträger bleiben.It is also advantageous that a further belt is provided, which holds the first and second elevator car down. In this case, a first end of the further belt is connected to the elevator car carrier and a second end of the further belt is connected to the elevator car carrier. In particular, the ends are each connected to a respective cross member of the elevator car carrier. The further belt holds the first and second elevator car down each on two rollers each attached to an associated elevator car. The further belt thus constitutes a sub-tensioning means, which prevents a hopping of the first and second elevator cars in the event of an abrupt stop. As a result, it is ensured even during an emergency braking that the first and the second elevator car essentially always remain in a stationary position in relation to the elevator car carrier.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Bevorzugte Ausführungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung anhand der beigefügten Zeichnungen, in denen sich entsprechende Elemente mit übereinstimmenden Bezugszeichen versehen sind, näher erläutert. Es zeigt:

  • Fig. 1 eine Aufzuganlage in einer schematischen Darstellung entsprechend einem ersten Ausführungsbeispiel der Erfindung;
  • Fig. 2 den in Fig. 1 mit II bezeichneten Ausschnitt einer Aufzuganlage entsprechend einem zweiten Ausführungsbeispiel in einer schematischen Darstellung und
  • Fig. 3 das Profil eines Riemens für eine Aufzuganlage in einer schematischen Darstellung entsprechend einer möglichen Ausgestaltung.
Preferred embodiments of the invention are explained in more detail in the following description with reference to the accompanying drawings, in which corresponding elements are provided with corresponding reference numerals. It shows:
  • Fig. 1 an elevator system in a schematic representation according to a first embodiment of the invention;
  • Fig. 2 the in Fig. 1 With II designated section of an elevator system according to a second embodiment in a schematic representation and
  • Fig. 3 the profile of a belt for an elevator system in a schematic representation according to a possible embodiment.

Bevorzugte Ausführungsformen der ErfindungPreferred embodiments of the invention

Fig. 1 zeigt eine Aufzuganlage 1 mit zumindest einem Aufzugkabinenträger 2, der in einem für eine Fahrt des Aufzugkabinenträgers 2 vorgesehenen Fahrraum 3 verfahrbar ist. Beispielsweise kann der Fahrraum 3 in einem Aufzugschacht eines Gebäudes vorgesehen sein. Fig. 1 shows an elevator system 1 with at least one elevator car carrier 2, which is movable in a provided for a drive of the elevator car carrier 2 driving space 3. For example, the driving space 3 may be provided in an elevator shaft of a building.

Der Aufzugkabinenträger 2 ist über mehrere Seilrollen 5, 6 an einem Zugmittel 8 aufgehängt. Aus Gründen der Übersichtlichkeit wurde in Fig. 1 verzichtet, den Verlauf des Zugmittels 8 zwischen den Seilrollen 5, 6 darzustellen. In einer gängigen Ausführung ist das Zugmittel 8 direkt von der Seilrolle 5 zur Seilrolle 6 geführt. Das Zugmittel 8 ist außerdem um eine Treibscheibe 9 einer Antriebsmaschineneinheit 10 geführt. Entsprechend einer momentanen Drehrichtung der Treibscheibe 9 wird der Aufzugkabinenträger 2 nach oben oder nach unten durch den Fahrraum verfahren.The elevator car carrier 2 is suspended by a plurality of pulleys 5, 6 on a traction means 8. For clarity, was in Fig. 1 omitted to represent the course of the traction device 8 between the pulleys 5, 6. In a common embodiment, the traction means 8 is guided directly from the pulley 5 to the pulley 6. The traction means 8 is also about a traction sheave 9 a Drive machine unit 10 out. In accordance with a momentary direction of rotation of the traction sheave 9, the elevator car carrier 2 is moved upwards or downwards through the driving area.

An dem Aufzugkabinenträger 2 sind eine erste Aufzugkabine 11 und eine zweite Aufzugkabine 12 angeordnet. Hierbei sind die beiden Aufzugkabinen 11, 12 gegenüber dem Aufzugkabinenträger 2 verstellbar.At the elevator car carrier 2, a first elevator car 11 and a second elevator car 12 are arranged. Here, the two elevator cars 11, 12 relative to the elevator car carrier 2 are adjustable.

An dem Aufzugkabinenträger 2 sind Querträger 13, 14, 15 ausgebildet, die mit Längsträgern 16, 17 des Aufzugkabinenträgers 2 verbunden sind. An dem Querträger 13 sind die Seilrollen 5, 6 angeordnet. Ferner ist an dem Querträger 13 eine Antriebseinheit 18 angebracht. Die Antriebseinheit 18 dient zum Antreiben eines Riemens 19. Hierfür ist der Riemen 19 um ein Antriebsrad 20 der Antriebseinheit 18 geführt. Ein Ende 21 des Riemens 19 ist mit dem Querträger 13 verbunden. Ein anderes Ende 22 des Riemens 19 ist mit dem Querträger 14 des Aufzugkabinenträgers 2 verbunden. Entsprechend einer Fahrrichtung 24 ist eine Längsrichtung 24 des Aufzugkabinenträgers 2 bestimmt. Die Längsträger 16, 17 des Aufzugkabinenträgers 2 sind hierbei entlang der Längsrichtung 24 ausgerichtet. Die Querträger 13 bis 15 sind senkrecht zu der Längsrichtung 24 zwischen den Längsträgern 16, 17 angeordnet.On the elevator car carrier 2, cross members 13, 14, 15 are formed, which are connected to longitudinal members 16, 17 of the elevator car carrier 2. At the cross member 13, the pulleys 5, 6 are arranged. Further, a drive unit 18 is attached to the cross member 13. The drive unit 18 is used to drive a belt 19. For this purpose, the belt 19 is guided around a drive wheel 20 of the drive unit 18. One end 21 of the belt 19 is connected to the cross member 13. Another end 22 of the belt 19 is connected to the cross member 14 of the elevator car carrier 2. Corresponding to a direction of travel 24, a longitudinal direction 24 of the elevator car carrier 2 is determined. The longitudinal members 16, 17 of the elevator car carrier 2 are in this case aligned along the longitudinal direction 24. The cross members 13 to 15 are arranged perpendicular to the longitudinal direction 24 between the longitudinal members 16, 17.

In einem Bereich 25 zwischen dem Querträger 13 und der ersten Aufzugkabine 11 ist der Riemen 19 zwischen dem Querträger 13 und der ersten Aufzugkabine 11 mehrmals hin- und hergeführt. Hierbei ist der Riemen 19 ausgehend von dem festen Ende 21 zunächst entgegen der Längsrichtung 24 zu einer an der ersten Aufzugkabine 11 befestigten Rolle 26 geführt. Dann ist der Riemen 19 um die Rolle 26 und in der Längsrichtung 24 zu einer an dem Querträger 13 befestigten Rolle 27 geführt. Ferner ist der Riemen 19 dann wieder entgegen der Längsrichtung 24 zu einer an der ersten Aufzugkabine 11 befestigten Rolle 28 geführt. Von der Rolle 28 ist der Riemen 19 zu einer weiteren an der ersten Aufzugkabine 11 befestigten Rolle 29 quer zu der Längsrichtung 24 geführt. Von der Rolle 29 ist der Riemen 19 zunächst in der Längsrichtung 24 zu einer an dem Querträger 13 befestigten Rolle 30, dann entgegen der Längsrichtung 24 zu einer an der ersten Aufzugkabine 11 befestigten Rolle 31 und dann entlang der Längsrichtung 24 zu dem Antriebsrad 20 der Antriebseinheit 18 geführt. Hierbei ist der Riemen 19 sowohl zu seiner ersten Seite 32 als auch zu seiner zweiten Seite 33 gebogen. Die erste Seite 32 des Riemens 19 liegt hierbei an dem Antriebsrad 20 der Antriebseinheit 18 an, während die zweite Seite 33 im Bereich des Antriebsrads 20 von dem Antriebsrad 20 abgewandt ist.In a region 25 between the cross member 13 and the first elevator car 11, the belt 19 is reciprocated several times between the cross member 13 and the first elevator car 11. In this case, the belt 19, starting from the fixed end 21, is initially guided counter to the longitudinal direction 24 to a roller 26 fastened to the first elevator car 11. Then that is Belt 19 is guided around the roller 26 and in the longitudinal direction 24 to a roller 27 fastened to the cross member 13. Furthermore, the belt 19 is then again guided against the longitudinal direction 24 to a roller 28 attached to the first elevator car 11. From the roller 28, the belt 19 is guided transversely to the longitudinal direction 24 to a further roller 29 fastened to the first elevator car 11. From the roller 29, the belt 19 is first in the longitudinal direction 24 to a roller 30 fixed to the cross member 13, then opposite to the longitudinal direction 24 to a fixed to the first elevator car 11 roller 31 and then along the longitudinal direction 24 to the drive wheel 20 of the drive unit 18 led. Here, the belt 19 is bent both to its first side 32 and to its second side 33. The first side 32 of the belt 19 rests on the drive wheel 20 of the drive unit 18, while the second side 33 is remote from the drive wheel 20 in the region of the drive wheel 20.

In diesem Ausführungsbeispiel ist die erste Aufzugkabine 11 auf einem ersten Träger 34 angeordnet, der in der Längsrichtung 24 an dem Aufzugkabinenträger 2 geführt ist. Ferner ist die zweite Aufzugkabine 12 auf einem zweiten Träger 35 angeordnet, der in der Längsrichtung 24 an dem Aufzugkabinenträger 2 geführt ist.In this exemplary embodiment, the first elevator car 11 is arranged on a first carrier 34, which is guided in the longitudinal direction 24 on the elevator car carrier 2. Furthermore, the second elevator car 12 is arranged on a second carrier 35, which is guided in the longitudinal direction 24 on the elevator car carrier 2.

Der Riemen 19 läuft von dem Antriebsrad 20 der Antriebseinheit 18 entgegen der Längsrichtung 24 zu einer Führungsrolle 36. Ferner ist der Riemen 19 um die Führungsrolle 36, und weitere Führungsrollen 37, 38 geführt. Die Führungsrollen 36 bis 38 sind mit dem Aufzugkabinenträger 2 verbunden. Von der Führungsrolle 38 ist der Riemen 19 weiter zu einer Führungsrolle 39 geführt, die mit dem Querträger 14 verbunden ist.The belt 19 runs from the drive wheel 20 of the drive unit 18 against the longitudinal direction 24 to a guide roller 36. Further, the belt 19 is guided around the guide roller 36, and further guide rollers 37, 38. The guide rollers 36 to 38 are connected to the elevator car carrier 2. From the guide roller 38 of the belt 19 is further guided to a guide roller 39, which with the Cross member 14 is connected.

In einem Bereich 40 ist der Riemen 19 mehrmals in und entgegen der Längsrichtung 24 geführt. Hierbei ist der Riemen 19 zwischen dem Querträger 14 und der zweiten Aufzugkabine 12 hin- und hergeführt. Dabei läuft der Riemen 19 von der Führungsrolle 39 entgegen der Längsrichtung 24 zu einer Rolle 41, die mit der zweiten Aufzugkabine 12 verbunden ist, dann in der Längsrichtung 24 zu einer mit dem Querträger 14 verbundenen Rolle 42 und dann entgegen der Längsrichtung 24 zu einer mit der zweiten Aufzugkabine 12 verbundenen Rolle 43. Ferner ist der Riemen 19 quer zu der Längsrichtung 24 entlang der zweiten Aufzugkabine 12 von der Rolle 43 zu einer mit der zweiten Aufzugkabine 12 verbundenen Rolle 44 geführt. Von der Rolle 44 ist der Riemen 19 in der Längsrichtung 24 zu einer mit dem Querträger 14 verbundenen Rolle 45, dann entgegen der Längsrichtung 24 zu einer mit der zweiten Aufzugkabine 12 verbundenen Rolle 46 und dann wieder in der Längsrichtung 24 zu dem Querträger 14 geführt, wobei das Ende 22 mit dem Querträger 14 verbunden ist.In a region 40, the belt 19 is guided several times in and counter to the longitudinal direction 24. Here, the belt 19 between the cross member 14 and the second elevator car 12 is reciprocated. In this case, the belt 19 of the guide roller 39 runs opposite to the longitudinal direction 24 to a roller 41 which is connected to the second elevator car 12, then in the longitudinal direction 24 to a roller 42 connected to the cross member 14 and then against the longitudinal direction 24 to a Furthermore, the belt 19 is guided transversely to the longitudinal direction 24 along the second elevator car 12 from the roller 43 to a roller 44 connected to the second elevator car 12. From the roller 44, the belt 19 is guided in the longitudinal direction 24 to a roller 45 connected to the cross member 14, then opposite to the longitudinal direction 24 to a roller 46 connected to the second elevator car 12 and then again in the longitudinal direction 24 to the cross member 14, wherein the end 22 is connected to the cross member 14.

Außerdem ist in diesem Ausführungsbeispiel ein weiterer Riemen 50 vorgesehen, der entsprechend dem Riemen 19 ausgestaltet ist. Hierbei ein Ende 51 des Riemens 50 mit dem Querträger 14 verbunden. Ein anderes Ende 52 des Riemens 50 ist mit dem Querträger 15 verbunden. Der Riemen 50 hat in diesem Ausführungsbeispiel die Funktion, die erste Aufzugkabine 11 und die zweite Aufzugkabine 12 von unten zu halten. Hierdurch wird beispielsweise beim Auslösen einer Notbremsung, während sich der Aufzugkabinenträger 2 nach oben durch den Fahrraum 3 bewegt, ein zuverlässiges Übertragen der Bremskräfte von dem Aufzugkabinenträger 2 auf die beiden Aufzugkabinen 11, 12 erreicht.In addition, a further belt 50 is provided in this embodiment, which is designed according to the belt 19. In this case, one end 51 of the belt 50 is connected to the cross member 14. Another end 52 of the belt 50 is connected to the cross member 15. The belt 50 in this embodiment has the function of holding the first elevator car 11 and the second elevator car 12 from below. In this way, for example, when an emergency braking is triggered, while the elevator car carrier 2 moves upwards through the driving space 3, a reliable transfer of the braking forces from the elevator car carrier 2 to the two elevator cars 11, 12 is achieved.

Der Riemen 50 ist ausgehend von seinem Ende 51 in der Längsrichtung 24 um eine mit dem ersten Träger 34 verbundene Rolle 53 geführt. Dann ist der Riemen 50 quer zu der Längsrichtung 24 zu einer weiteren mit dem ersten Träger 34 verbundenen Rolle 54 geführt. Von der Rolle 54 ist der Riemen 50 entgegen der Längsrichtung 24 an der zweiten Aufzugkabine 2 seitlich vorbei bis zu einer Rolle 55 geführt. Die Rolle 55 ist hierbei mit dem Querträger 15 verbunden. Von der Rolle 55 ist der Riemen 50 in der Längsrichtung 24 zu einer mit dem zweiten Träger 35 verbundenen Rolle 56 geführt. Von der Rolle 56 ist der Riemen 50 quer zu der Längsrichtung 24 zu einer Rolle 57 geführt. Von der Rolle 57 ist der Riemen 50 entgegen der Längsrichtung 24 zu dem Querträger 15 geführt, wobei das Ende 52 mit dem Querträger 15 verbunden ist.The belt 50 is guided from its end 51 in the longitudinal direction 24 about a roller 53 connected to the first carrier 34. Then, the belt 50 is guided transversely to the longitudinal direction 24 to another roller 54 connected to the first carrier 34. Of the roller 54 of the belt 50 is guided against the longitudinal direction 24 on the second elevator car 2 laterally over to a roller 55. The roller 55 is in this case connected to the cross member 15. From the roller 55, the belt 50 is guided in the longitudinal direction 24 to a roller 56 connected to the second carrier 35. From the roller 56, the belt 50 is guided transversely to the longitudinal direction 24 to a roller 57. From the roller 57, the belt 50 is guided against the longitudinal direction 24 to the cross member 15, wherein the end 52 is connected to the cross member 15.

Bei dieser Anordnung sind die beiden Aufzugkabinen 11, 12 an dem Riemen 19 aufgehängt. Hierbei ist im Bereich 25 ein Flaschenzug für die erste Aufzugkabine 11 ausgebildet. Außerdem ist im Bereich 40 ein Flaschenzug für die zweite Aufzugkabine 12 ausgebildet. Da die beiden Flaschenzüge die gleichen Übersetzungsverhältnisse aufweisen, sind auch die Verstellwege bezüglich der ersten Aufzugkabine 11 und der zweiten Aufzugkabine 12 gleich groß. Ferner ist die Antriebseinheit 18 gewissermaßen zwischen den beiden Flaschenzuganordnungen angeordnet. Eine Verkürzung der Länge des Riemens 19 im Bereich 25 führt somit zu einer Verlängerung des Riemens 19 im Bereich 40 und umgekehrt. Wird die erste Aufzugkabine 11 durch die Flaschenzuganordnung im Bereich 25 in der Längsrichtung 24 relativ zu dem Aufzugkabinenträger 2 verstellt, dann wird somit die zweite Aufzugkabine 12 relativ zu dem Aufzugkabinenträger 2 entgegen der Verstellrichtung 24 verstellt. Entsprechendes gilt im umgekehrten Fall. Somit werden die Aufzugkabinen 11, 12 immer in gerade entgegengesetzten Richtungen verstellt. Hierbei ist anzumerken, dass die Rollen 27, 30 der Flaschenzuganordnung im Bereich 25 ortsfest an dem Aufzugkabinenträger 2 angeordnet sind und dass die Rollen 42, 45 über den Querträger 14 ebenfalls ortsfest an dem Aufzugkabinenträger 2 angeordnet sind. Außerdem ist somit eine Abstimmung auf den Riemen 50 gewährleistet, da eine Verkürzung des Riemens 50 zwischen dem Ende 52 und der Rolle 55 gerade die erforderliche Verlängerung zwischen der Rolle 55 und dem Ende 51 ergibt. Hierdurch kann insbesondere erreicht werden, dass eine vorgegebene Zugspannung des Riemens 50 stets aufrechterhalten ist. Hierfür kann die Rolle 55 über ein Federelement 58 beaufschlagt sein.In this arrangement, the two elevator cars 11, 12 are suspended on the belt 19. Here, a pulley for the first elevator car 11 is formed in the area 25. In addition, a pulley for the second elevator car 12 is formed in the area 40. Since the two pulleys have the same gear ratios, the adjustment paths with respect to the first elevator car 11 and the second elevator car 12 are the same size. Furthermore, the drive unit 18 is effectively arranged between the two pulley assemblies. A shortening of the length of the belt 19 in the region 25 thus leads to an extension of the belt 19 in the region 40 and vice versa. If the first elevator car 11 is adjusted relative to the elevator car carrier 2 by the pulley arrangement in the region 25 in the longitudinal direction 24, then the second elevator car 12 is adjusted counter to the adjustment direction 24 relative to the elevator car carrier 2. The same applies in reverse case. Thus, the elevator cars 11, 12 are always adjusted in straight opposite directions. It should be noted that the rollers 27, 30 of the pulley assembly in the area 25 are fixedly arranged on the elevator car carrier 2 and that the rollers 42, 45 are also arranged on the cross member 14 fixed to the elevator car carrier 2. In addition, a vote on the belt 50 is thus ensured, since a shortening of the belt 50 between the end 52 and the roller 55 just the required extension between the roller 55 and the end 51 results. In this way, in particular, it can be achieved that a predetermined tension of the belt 50 is always maintained. For this purpose, the roller 55 may be acted upon by a spring element 58.

Der Riemen 19 und der Riemen 50 dienen für unterschiedliche Funktionen, so dass diese unterschiedlichen Belastungen ausgesetzt sein können. Hierbei kann in unterschiedlicher Weise eine Anpassung an den jeweiligen Anwendungsfall erfolgen. Beispielsweise kann anstelle eines einzelnen Riemens 19 eine parallele Führung von vier Riemen 19 vorgesehen sein. Außerdem kann anstelle eines einzelnen Riemens 50 eine parallele Führung von zwei Riemen 50 ausgestaltet sein. Die Riemen 19, 50 können hierbei über entsprechend breit ausgestaltete Rollen 26 bis 31, 41 bis 46, 53 bis 57 und Führungsrollen 36 bis 39 geführt sein. Hierdurch können als Riemen 19, 50 einheitlich ausgestaltete Riemen zum Einsatz kommen. Bei dieser Ausgestaltung wird der Riemen 19 sowohl zu seiner ersten Seite 32 als auch zu seiner zweiten Seite 33 gebogen. Beispielsweise wird der Riemen 19 an der Rolle 31 zu der zweiten Seite 33 gebogen, während er an der Rolle 30 zu der ersten Seite 32 gebogen ist. Somit tritt in den Flaschenzuganordnungen in den Bereichen 25, 40 eine Biegung zu beiden Seiten 32, 33 auf. Dies bedeutet, dass eine Biegung und eine Gegenbiegung des Riemens 19 bei der Riemenführung auftreten. Allerdings kann hierbei eine Optimierung des zur Verfügung stehenden Platzes und der insgesamt benötigten Länge des Riemens 19 erzielt werden.The belt 19 and the belt 50 serve different functions, so that they can be subjected to different loads. This can be done in different ways an adaptation to the particular application. For example, instead of a single belt 19, a parallel guide of four belts 19 may be provided. In addition, instead of a single belt 50, a parallel guide of two belts 50 may be configured. The belts 19, 50 can in this case be guided over correspondingly broad rollers 26 to 31, 41 to 46, 53 to 57 and guide rollers 36 to 39. As a result, as belt 19, 50 uniformly configured belt can be used. In this embodiment, the belt 19 is bent both to its first side 32 and to its second side 33. For example, the belt 19 on the roller 31 is bent to the second side 33 while being bent on the roller 30 to the first side 32. Thus occurs in the pulley assemblies in the areas 25, 40th a bend on both sides 32, 33 on. This means that a bend and a counterbending of the belt 19 occur in the belt guide. However, in this case an optimization of the available space and the total required length of the belt 19 can be achieved.

Da die Aufzugkabinen 11, 12 jeweils zwischen den Riemen 19, 50 eingespannt sind, kann eine große Stabilität des Aufzugkabinenträgers 2 mit den Aufzugkabinen 11, 12 erzielt werden. Hierdurch ist es auch möglich, dass die erste Aufzugkabine 11 eine relativ große Höhe aufweist und/oder dass die zweite Aufzugkabine 12 eine relativ große Höhe aufweist. Somit können die Erstreckungen der Aufzugkabinen 11, 12 in der Längsrichtung 24 relativ groß vorgegeben sein. Außerdem kann ein seitlicher Abstand der Aufzugkabinen 11, 12 zu den Längsträgern 16, 17 reduziert werden. Hierbei ist es auch von Vorteil, dass der Riemen 19 beziehungsweise der Riemen 50 nahe an den Längsträgern 16, 17 geführt sein können, wodurch sich der für die Aufzugkabinen 11, 12 verbleibende Platz weiter vergrößert. Somit kann ein großer Teil des zur Verfügung stehenden Schachtquerschnitts im Fahrraum 3 von den Aufzugkabinen 11, 12 genutzt werden.Since the elevator cars 11, 12 are respectively clamped between the belts 19, 50, a high stability of the elevator car carrier 2 with the elevator cars 11, 12 can be achieved. As a result, it is also possible that the first elevator car 11 has a relatively high height and / or that the second elevator car 12 has a relatively high height. Thus, the extensions of the elevator cars 11, 12 in the longitudinal direction 24 can be set relatively large. In addition, a lateral distance of the elevator cars 11, 12 can be reduced to the side rails 16, 17. In this case, it is also advantageous that the belt 19 or the belt 50 can be guided close to the longitudinal members 16, 17, whereby the space remaining for the elevator cars 11, 12 is further increased. Thus, a large part of the available shaft cross-section in the driving space 3 can be used by the elevator cars 11, 12.

Fig. 2 zeigt den in Fig. 1 mit II bezeichneten Ausschnitt der Aufzuganlage 1 entsprechend einem zweiten Ausführungsbeispiel in einer schematischen Darstellung. In diesem Ausführungsbeispiel ist neben den Rollen 26, 28 an der ersten Aufzugkabine 11 eine weitere Rolle 60 angeordnet. Ferner ist neben den Rollen 29, 31 an der ersten Aufzugkabine 11 eine weitere Rolle 61 angeordnet. Außerdem ist neben der Rolle 27 an dem Querträger 13 eine weitere Rolle 62 angeordnet. Ferner ist neben der Rolle 30 an dem Querträger 13 eine weitere Rolle 63 angeordnet. In diesem Ausführungsbeispiel ist eine alternative Führung des Riemens 19 im Bereich 25 zur Verwirklichung eines Flaschenzuges dargestellt. Bei dieser Flaschenzuganordnung ist der Riemen 19 im Uhrzeigersinn von seinem Ende 21 aus um die Rolle 60, dann die Rolle 61, die Rolle 63, die Rolle 62, die Rolle 28, die Rolle 29, die Rolle 30, die Rolle 27, die Rolle 26, die Rolle 31, eine an dem Querträger 13 angeordnete Führungsrolle 64 und dann eine Führungsrolle 65, die ebenfalls an dem Querträger 13 angeordnet ist, geführt. Von der Führungsrolle 65 ist der Riemen 19 dann entgegen der Längsrichtung 24 seitlich an der ersten Aufzugkabine 11 entlang nach unten geführt. Somit ist im Bereich 25 eine Flaschenzuganordnung realisiert, bei der der Riemen 19 stets mit seiner ersten Seite 32 an den einzelnen Rollen 26, 27, 28, 29, 30, 31, 60, 61, 62, 63, 64, 65 anliegt. Somit ist der Riemen 19 stets zu seiner ersten Seite 32 hin gebogen. Gegenbiegungen sind dadurch verhindert oder zumindest im Wesentlichen vermieden. Allerdings kann der Riemen 19 auch an einzelnen Führungsrollen 36 mit seiner zweiten Seite 33 anliegen und somit auch etwas zu der zweiten Seite 33 gebogen sein. Die Führungsrolle 64 kann auch durch das Antriebsrad 20 der Antriebseinheit 18 ersetzt sein. Fig. 2 shows the in Fig. 1 labeled II section of the elevator system 1 according to a second embodiment in a schematic representation. In this embodiment, in addition to the rollers 26, 28 on the first elevator car 11, a further roller 60 is arranged. Furthermore, a further roller 61 is arranged next to the rollers 29, 31 on the first elevator car 11. In addition, a further roller 62 is arranged next to the roller 27 on the cross member 13. Further, in addition to the roller 30 on the cross member 13, a further roller 63 is arranged. In this embodiment is a alternative guidance of the belt 19 shown in the area 25 for the realization of a pulley. In this pulley arrangement, the belt 19 is clockwise from its end 21 about the roller 60, then the roller 61, the roller 63, the roller 62, the roller 28, the roller 29, the roller 30, the roller 27, the roller 26, the roller 31, a arranged on the cross member 13 guide roller 64 and then a guide roller 65, which is also arranged on the cross member 13, out. Of the guide roller 65, the belt 19 is then guided against the longitudinal direction 24 laterally along the first elevator car 11 down. Thus, in the area 25 a pulley arrangement is realized in which the belt 19 always rests with its first side 32 on the individual rollers 26, 27, 28, 29, 30, 31, 60, 61, 62, 63, 64, 65. Thus, the belt 19 is always bent toward its first side 32. Counter bends are prevented or at least substantially avoided. However, the belt 19 may also abut against individual guide rollers 36 with its second side 33 and thus also be slightly bent to the second side 33. The guide roller 64 may also be replaced by the drive wheel 20 of the drive unit 18.

Somit kann der Riemen 19 nur an der als Vorderseite 32 dienenden ersten Seite 32 geführt sein, wobei die zweite Seite 33 als freie Rückseite 33 dient. Je nach Ausgestaltung des Riemens 19 kann hierdurch eine Belastung des Riemens 19 verringert werden.Thus, the belt 19 may be guided only on the first side 32 serving as the front side 32, wherein the second side 33 serves as a free back 33. Depending on the configuration of the belt 19, a load on the belt 19 can thereby be reduced.

Im Bereich 40 der zweiten Aufzugkabine 12 kann in entsprechender Weise eine Flaschenzuganordnung realisiert werden.In the area 40 of the second elevator car 12, a pulley arrangement can be realized in a corresponding manner.

Fig. 3 zeigt ein Profil des Riemens 19 entsprechend einer möglichen Ausgestaltung in einer schematischen Darstellung. Der Riemen 19 kann als Keilrippenriemen ausgestaltet sein und mehrere Rippen 70, 71, 72 aufweisen. Hierbei kann jede der Rippen 70 bis 72 einen näherungsweise V-förmigen Querschnitt aufweisen. In diesem Ausführungsbeispiel ist an der ersten Seite 32 die Ausgestaltung mit Rippen 70 bis 72 vorgesehen. Die zweite Seite 33 ist flach ausgestaltet. Somit ist der Riemen 19 einseitig profiliert, nämlich an der ersten Seite 32. Die erste Seite 32 dient hierbei als Kontaktseite. Solch ein Riemen kommt beispielsweise bei dem anhand der Fig. 2 veranschaulichten zweiten Ausführungsbeispiel zum Einsatz. Fig. 3 shows a profile of the belt 19 according to a possible embodiment in a schematic representation. The belt 19 may be configured as a V-ribbed belt and have a plurality of ribs 70, 71, 72. Here, each of the ribs 70 to 72 may have an approximately V-shaped cross-section. In this embodiment, the embodiment with ribs 70 to 72 is provided on the first side 32. The second side 33 is configured flat. Thus, the belt 19 is profiled on one side, namely on the first side 32. The first side 32 serves as a contact side. Such a belt comes for example in the basis of the Fig. 2 illustrated second embodiment for use.

Alternativ kann der Riemen 19 auch an beiden Seite 32, 33 profiliert sein. Entsprechend den Rippen 70 bis 72 können hierbei auch Rippen an der zweiten Seite 33 ausgestaltet sein. Solch ein Riemen 19 kommt vorzugsweise bei dem anhand der Fig. 1 beschriebenen ersten Ausführungsbeispiel zum Einsatz.Alternatively, the belt 19 may also be profiled on both sides 32, 33. Corresponding to the ribs 70 to 72, ribs may also be configured on the second side 33. Such a belt 19 is preferably in the basis of the Fig. 1 described first embodiment used.

Außerdem ist es auch möglich, dass ein als Flachriemen 19 ausgestalteter Riemen 19 zum Einsatz kommt. Bei solch einem Flachriemen 19 ist auch die erste Seite 32 flach ausgestaltet. Hierbei ist die erste Seite 32 dann entsprechend der zweiten Seite 33, wie sie in der Fig. 3 veranschaulicht ist, ausgestaltet. Hierbei kann allerdings eine gewisse Oberflächenstruktur vorgesehen sein, um eine Reibung beim Zusammenwirken mit dem Antriebsrad 20 der Antriebseinheit 18 zu verbessern. Somit können bei dieser Ausgestaltung wahlweise eine der Seiten 32, 33 oder auch beide Seiten 32, 33 als Kontaktseiten dienen.Moreover, it is also possible for a belt 19 configured as a flat belt 19 to be used. In such a flat belt 19 and the first side 32 is designed flat. Here, the first side 32 is then corresponding to the second side 33, as shown in the Fig. 3 is illustrated, designed. In this case, however, a certain surface structure may be provided in order to improve a friction during the interaction with the drive wheel 20 of the drive unit 18. Thus, in this embodiment optionally one of the sides 32, 33 or both sides 32, 33 serve as contact pages.

Außerdem kann der Riemen 19 auch als Zahnriemen 19 ausgestaltet sein.In addition, the belt 19 may also be configured as a toothed belt 19.

Bei einem Riemen 19, der an zumindest einer seiner Seiten 32, 33 flach ausgestaltet ist, wird die flache Seite 32, 33 vorzugsweise über eine bombierte Rolle oder dergleichen geführt. Die Führungsfläche der bombierten Rolle ist hierbei konvex gebogen ausgestaltet. Ferner ist die konvexe Führungsfläche vorzugsweise durch seitliche Schultern zur Führung des Riemens 19 begrenzt.In a belt 19, which is designed flat on at least one of its sides 32, 33, the flat side 32, 33 is preferably guided over a cambered roller or the like. The guide surface of the cambered roller is configured convexly curved. Furthermore, the convex guide surface is preferably bounded by lateral shoulders for guiding the belt 19.

Die Erfindung ist nicht auf die beschriebenen Ausführungsbeispiele beschränkt.The invention is not limited to the described embodiments.

Claims (13)

  1. Lift installation (1) with at least one lift cage support (2), which is movable in a travel space (3) provided for travel of the lift cage support (2), a first lift cage (11), which is adjustably arranged at the lift cage support (2), at least one second lift cage (12), which is arranged at the lift cage support (2), a drive unit (18), which is arranged at the lift cage support (2), and at least one belt (19), wherein at least the first lift cage (11) is adjustable by the drive unit (18) relative to the lift cage support (2) by means of the belt (19), characterised in that a further belt (50) is provided, that one end (51) of the belt (50) is connected with the lift cage support (2) and that another end (52) of the belt (50) is connected with the lift cage support (2), wherein the belt (50) holds down the first and second lift cages (11, 12).
  2. Lift installation according to claim 1, characterised in that mounted on the first lift cage (11) are rollers (26, 28, 29, 31, 60, 61) around which the belt (19) is guided, that mounted on the lift cage support (2) is at least one roller (27, 30, 62, 63), around which the belt (19) is guided, and that the belt (19) together with the rollers (27, 28, 39, 31, 60, 61) mounted on the first lift cage (11) and the roller (27, 30, 62, 63) mounted on the lift cage support (2) form a block-and-tackle for adjustment of the first lift cage (11).
  3. Lift installation according to claim 1 or 2, characterised in that the second lift cage (12) is adjustably arranged at the lift cage support (2), that the second lift cage (12) is adjustable by the drive unit (18) relative to the lift cage support (2) by means of the belt (19) and that when adjustment of the first lift cage (11) and the second lift cage (12) relative to the lift cage support (2) takes place the first lift cage (11) and the second lift cage (12) are adjustable relative to one another in opposite sense.
  4. Lift installation according to claim 3, characterised in that rollers (42, 45) at which the second lift cage (12) is suspended by way of the belt (19) are arranged at the lift cage support (2).
  5. Lift installation according to any one of claims 1 to 4, characterised in that the belt (19) has a first side (32) and a second side (33) remote from the first side (32) and that the first side (32) serves as a contact side (32), at which the belt (19) is guided around a drive wheel (20) of the drive unit (18) and around rollers and towards which the belt (19) is bent, and that the second side (33) serves as a free rear side (33), with respect towards which the belt (19) at least substantially is not bent.
  6. Lift installation according to claim 5, characterised in that a first end (21) of the belt (19) is connected with a crossbeam (13) of the lift cage support (2), that the belt (19) is led from its first end (21) to at least two rollers (26, 31), which are fastened to the first lift cage (11), that the belt (19) is further led to at least two rollers (64, 65), which are fastened to the crossbeam (13), that the belt is further led downwardly laterally along the first lift cage (11) and that the belt (19) between its first end (21) and the rollers (64, 65) mounted on the crossbeam (13) forms a loop in which the first lift cage (11) is suspended, wherein the belt (19) is bent in substantially the same sense around the rollers (26, 31, 64, 65).
  7. Lift installation according to claim 5 or 6, characterised in that at least one guide roller (16), which for guidance of the belt (19) co-operates with the free rear side (33) of the belt (19), is provided.
  8. Lift installation according to any one of claims 1 to 4, characterised in that the belt (19) has a first side (32) and a second side (33) remote from the first side (32), that the first side (32) serves as a first contact side (32), at which the belt (19) is guided around a drive wheel (20) of the drive unit (18) and around rollers and towards which the belt (19) is bent, and that the second side (33) serves as a second contact side (33), at which the belt (19) is guided around rollers and towards which the belt (19) is bent.
  9. Lift installation according to any one of claims 5 to 8, characterised in that the belt (19) has at least one rib (70, 71, 72) at at least one contact side (32, 33).
  10. Lift installation according to claim 9, characterised in that the rib (70, 71, 72) has an at least approximately V-shaped profile.
  11. Lift installation according to any one of claims 1 to 8, characterised in that the belt (19) is formed as a flat belt.
  12. Lift installation according to claim 1, characterised in that the belt (50) starting from its end (51) is led upwardly to the rollers (53, 54), which are fastened to the first lift cage (11), that the belt (50) is further led laterally along the second lift cage (12) downwardly to a roller (55), which is fastened to the crossbeam (15), that the belt (50) is further led upwardly to two rollers (56, 57), which are fastened to the second lift cage (12), and that the belt is further led to its other end (52), wherein the first and second lift cages (11, 12) are each held down in a respective movement of the belt (50).
  13. Lift installation according to claim 12, characterised in that the roller (55) is loaded by way of a spring element (58), wherein a predetermined tensile stress of the belt (50) is maintained.
EP20100784545 2009-12-15 2010-12-01 Lift facility with double decker Not-in-force EP2512968B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100784545 EP2512968B1 (en) 2009-12-15 2010-12-01 Lift facility with double decker

Applications Claiming Priority (3)

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EP09179246 2009-12-15
EP20100784545 EP2512968B1 (en) 2009-12-15 2010-12-01 Lift facility with double decker
PCT/EP2010/068597 WO2011073030A1 (en) 2009-12-15 2010-12-01 Elevator system having a double-decker

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EP (1) EP2512968B1 (en)
CN (1) CN102741144B (en)
ES (1) ES2543885T3 (en)
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SG115739A1 (en) * 2004-03-17 2005-10-28 Inventio Ag Equipment for fine positioning of the cages of a multi-stage cage for a lift
FI118335B (en) * 2004-07-30 2007-10-15 Kone Corp Elevator
ATE556020T1 (en) * 2004-12-29 2012-05-15 Otis Elevator Co BALANCING IN AN ELEVATOR SYSTEM WITH MULTIPLE CABINS IN A SINGLE SHAFT
FI119240B (en) * 2005-12-29 2008-09-15 Kone Corp Elevator system and equipment for adjusting the spacing of the double-deck elevator
FI118081B (en) * 2005-12-29 2007-06-29 Kone Corp Procedure and apparatus for monitoring the front opening of the doors in a double basket lift
WO2007129385A1 (en) * 2006-05-01 2007-11-15 Mitsubishi Denki Kabushiki Kaisha Elevator device
JP2007331871A (en) * 2006-06-14 2007-12-27 Mitsubishi Electric Corp Double-deck elevator
ES2407981T3 (en) * 2006-06-14 2013-06-17 Inventio Ag Elevator
US7661513B2 (en) * 2006-12-14 2010-02-16 Inventio Ag Dual-car elevator system with common counterweight
US7913818B2 (en) * 2006-12-22 2011-03-29 Inventio Ag Elevator installation in a building with at least one transfer floor
US8439167B2 (en) * 2007-12-21 2013-05-14 Inventio Ag Spacing control for two elevator cars in a common shaft
EP2444352A1 (en) * 2010-10-25 2012-04-25 Inventio AG Lift assembly
KR101494583B1 (en) * 2011-06-27 2015-02-17 미쓰비시덴키 가부시키가이샤 Double-deck elevator
CN104583106B (en) * 2012-08-14 2016-08-31 三菱电机株式会社 Double-deck elevator

Also Published As

Publication number Publication date
EP2512968A1 (en) 2012-10-24
US9132991B2 (en) 2015-09-15
CN102741144B (en) 2016-02-10
CN102741144A (en) 2012-10-17
ES2543885T3 (en) 2015-08-25
US20120318614A1 (en) 2012-12-20
WO2011073030A1 (en) 2011-06-23

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