EP2072447A1 - Agencement de moyens de portage pour une installation d'ascenseur, installation d'ascenseur dotée d'un tel agencement de moyens de portage, ensemble de moyens de portage pour une telle installation de moyens de portage et procédé de fabrication d'un tel agencement de moyens de portage - Google Patents

Agencement de moyens de portage pour une installation d'ascenseur, installation d'ascenseur dotée d'un tel agencement de moyens de portage, ensemble de moyens de portage pour une telle installation de moyens de portage et procédé de fabrication d'un tel agencement de moyens de portage Download PDF

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Publication number
EP2072447A1
EP2072447A1 EP07123885A EP07123885A EP2072447A1 EP 2072447 A1 EP2072447 A1 EP 2072447A1 EP 07123885 A EP07123885 A EP 07123885A EP 07123885 A EP07123885 A EP 07123885A EP 2072447 A1 EP2072447 A1 EP 2072447A1
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EP
European Patent Office
Prior art keywords
belt
support means
suspension
elevator
cable
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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.)
Withdrawn
Application number
EP07123885A
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German (de)
English (en)
Inventor
Guntram Begle
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Inventio AG
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Inventio AG
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Publication date
Application filed by Inventio AG filed Critical Inventio AG
Priority to EP07123885A priority Critical patent/EP2072447A1/fr
Publication of EP2072447A1 publication Critical patent/EP2072447A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts

Definitions

  • the present invention relates to a suspension element arrangement for an elevator installation with a plurality of suspension elements, an elevator installation with such a suspension element arrangement, a set of suspension elements for producing such a suspension element arrangement and a method for producing such a suspension arrangement.
  • An elevator installation typically includes at least one elevator car or platform for transporting people and / or goods, a propulsion system having at least one prime mover for moving the at least one elevator car or platform along a roadway and a suspension means assembly for supporting the at least one elevator car or platform and transmitting the forces from the at least one prime mover to the at least one elevator car or platform. It is customary to use suspension arrangements with several support means.
  • Belt-like support means are generally constructed of a belt-like molding of an elastomer, in which a plurality of tensile carriers are embedded.
  • the manufacturer of the elevator installation uses several such support belts which can run on common or parallel traction sheaves and deflecting disks.
  • the suspension element arrangement is oversized with the available belt-type suspension elements, which is very cost-intensive.
  • the provision of different design support straps is also not a viable alternative for cost reasons.
  • an elevator installation with a suspension element arrangement which comprises a plurality of cable-like support means, wherein both support ropes made of synthetic fibers and, for safety reasons, support ropes made of steel, which have a higher heat resistance, are used in parallel.
  • a suspension element arrangement for an elevator installation with the features of claim 1 is provided.
  • Advantageous developments and refinements of this invention are the subject of the dependent claims 2 to 14.
  • the suspension element arrangement for an elevator installation with several suspension elements contains at least one belt-like suspension element and at least one cable-like suspension element.
  • the suspension element arrangement for the elevator installation contains at least one belt-like suspension element (hereinafter often simply referred to as “suspension belt”) and at least one cable-like suspension element (hereinafter often simply referred to as “suspension cable”)
  • the safety requirements of the elevator installation eg the load capacity required by the elevator installation
  • a number of belt-like support means and an additional number of inexpensive rope-like support means without over-dimensioning the support means arrangement with too many expensive belt-like support means.
  • the suspension element assembly includes a plurality of similar belt-like support means and / or a plurality of similar rope-like support means.
  • the at least one belt-like support means and the at least one cable-like support means are designed such that they can be guided on common traction sheaves and / or deflecting pulleys of an elevator installation.
  • the at least one belt-like support means on a belt-like molded body, in which at least one tension member is embedded wherein the belt-like molded body of the at least one belt-like support means may be formed from one or more layers.
  • the at least one belt-like support means is formed on one or both main sides with at least one longitudinally extending rib, which is preferably in the form of a V-rib having a flank angle, for example between 60 ° and 120 °, in particular between about 80 ° and about 100 °, and in cross section is preferably formed substantially triangular or trapezoidal.
  • the ratio of the overall height of the at least one belt-like support means to its total width is greater than 1.
  • this ratio may be about 1 or the belt-like support means may be in the form of a flat belt in which this ratio is less than 1.
  • the at least one cable-like suspension element of the suspension element arrangement can have a plurality of supporting strands made of steel, plastic, a synthetic composition, aramid or cylon, which are preferably surrounded by a jacket.
  • the at least one cable-like support means of the suspension element arrangement can also be designed in the manner of a cross-strike cable, a dc rope or a cable stripping cable.
  • the elevator installation comprises at least one elevator car or platform for conveying persons and / or goods, a drive system with at least one drive machine for moving the at least one elevator car or platform along a roadway and a suspension means arrangement for supporting the at least one elevator car or platform and transmitting the forces of the at least one prime mover on the at least one elevator car or platform.
  • This suspension element arrangement of the elevator installation is preferably designed in the manner described above.
  • common traction sheaves and / or deflection pulleys are provided for guiding the at least one belt-type suspension element and the at least one cable-like suspension element of the suspension element arrangement. It is advantageous if the common traction sheaves and / or deflection pulleys are designed so that they ensure the same support means speeds for the guided by them belt-like support means and rope-like support means.
  • the elevator installation is particularly suitable for drive systems with a traction sheave drive.
  • a set of support means for producing a suspension element arrangement for an elevator installation with the features of claim 21 is provided.
  • Advantageous developments and refinements of this invention are the subject of the dependent claims 22 to 35.
  • the set of suspension elements for producing a suspension element arrangement for an elevator installation comprises a plurality of belt-type suspension elements and a plurality of rope-type suspension elements.
  • the manufacturer of the elevator installation can select a number of belt-type suspension elements and additionally a number of cable-like suspension elements, which are usually less expensive than the belt-type suspension elements, without the suspension element arrangement of the elevator installation with too many belt-type suspension elements to oversize.
  • the set of suspension means comprises a plurality of similar belt-like suspension means and / or a plurality of similar rope-like suspension means.
  • the belt-like support means and the rope-like support means of the set are designed such that they can be guided on common traction sheaves and / or deflection pulleys of an elevator installation.
  • the belt-like support means of the set each have a belt-like molded body in which at least one tension member is embedded.
  • the belt-like shaped body of the belt-like support means may be formed from one or more layers.
  • the belt-like support means of the set are each formed on one or both main sides with at least one longitudinally extending rib, which is preferably in the form of a V-rib and, for example, a flank angle between 60 ° and 120 ° , in particular between about 80 ° and about 100 °, and / or may be formed in cross-section substantially triangular or trapezoidal.
  • the belt-like support means of the set each have a ratio of their total height to their total width greater than 1, without the present invention being limited to this embodiment.
  • the belt-like suspension means in the form of a flat belt, in which this ratio is less than 1.
  • the rope-type suspension elements of the set each have a plurality of supporting strands made of steel, plastic, a synthetic composition, aramid or cylon, which are preferably surrounded by a sheathing.
  • the rope-like support means of the set are each formed in the manner of a funnelschlagseils, a dovetail rope or a Jardinschlagseils.
  • a method for producing a suspension element arrangement for an elevator installation with the features of claim 36 is provided.
  • the method for producing a suspension means assembly for an elevator installation comprises the steps of providing a set of suspension means comprising a plurality of belt-like support means and a plurality of cable-like support means and selecting a plurality of suspension means from the set of suspension means for a suspension means such that the suspension means arrangement comprises so many belt-like ones Suspension means and so many rope-type suspension means contain that they meet the safety requirements of the elevator installation.
  • the provided set of suspension means is preferably a set of suspension means formed in the manner described above.
  • An elevator installation according to the present invention can be designed as a passenger elevator for transporting persons and possibly also goods or as a goods lift for the exclusive transport of goods.
  • the following description of the individual elevator components is in each case based on a configuration as Elevator; However, the teaching of the invention is basically transferable to goods lifts.
  • the elevator installation according to the invention has at least one elevator cage or alternatively one or more movable platforms which are movable between fixed access points (in particular between floors of a building) in the vertical direction and are guided at least in sections along their lanes.
  • the elevator car can be moved with the aid of a drive system, wherein the drive system has one or more drive machines, which may optionally be operated independently of each other.
  • the elevator car is optionally designed to be movable in the horizontal direction or along a curved curved path.
  • the present invention relates in particular to elevator systems with a traction sheave drive as the drive system, but hydraulic drive systems with a suspension element arrangement according to the invention can also be realized.
  • the elevator installation comprises an elevator car 10, which is movable upwards and downwards in an elevator shaft 12.
  • the elevator car 10 serves to accommodate persons and goods; In particular, it comprises a steel frame scaffold, which is formed by a floor frame and a support frame, and corresponding wall and ceiling components. Elevator cars are generally made with a rectangular or square footprint, but other cabin shapes, for example, with a round footprint and the like are possible.
  • One or more accesses to the elevator car 10 are provided. In most cases, the entrances to the elevator car 10 can be closed with a car door, without the present invention being restricted to this embodiment of an elevator car.
  • the elevator car 10 may also be provided with an evacuation device.
  • the elevator car 10 is guided along vertical guide rails (not shown), for example, on the walls of the elevator shaft 12. According to the invention, the elevator car 10 is arranged in an elevator shaft 12 of a building, whereby it goes without saying that the elevator system described here can also be used on larger mobile units such as ships or in mines.
  • the elevator shaft 12 is a space bounded on several sides by vertical walls, in which the carriageway of the elevator car 10 is located. Belonging to the elevator shaft 12 are also a shaft head in the upper end region and a shaft pit in the lower end region of the elevator shaft 12 vorsehbar to provide any desired Studentsfahrwege and shelters.
  • the pit is, for example, designed as part of the elevator shaft 12 between the upper edge of the door sill of a lowermost stop and the shaft bottom. Shaft head and pit are outside the operating end positions of the elevator car 10 on the road.
  • essentially rigid guide rails for the elevator car 10 are arranged on the side walls of the elevator shaft 12 in order to guide the elevator car 10 safely and accurately on its carriageway in the elevator shaft 12.
  • the guide rails in the elevator shaft 12 have the task of guiding the elevator car 10 in the lane assigned to it, in particular during a vertical movement. At the same time serve the guide rails to create the safety gear in the catching process.
  • Guide rails for elevator systems often consist of a T-profile, optionally also of an angle profile, which is attached to a side wall of the elevator shaft 12.
  • a fixed guide for example in the form of guide sliding shoes and / or rollers, with which it is guided on the guide rails in the elevator shaft 12.
  • the safety catch is permitted only up to a certain operating speed, while the safety brake device is suitable for elevator systems with higher operating speeds.
  • Both types of safety gear are fixedly connected to the elevator car 10 and usually mounted under the elevator car 10, but without the safety gears must be limited to this position. They usually consist of two catch housings with the catch organs (and indeed one catch housing for each of the two opposite guide rails), the transmission organs and the connection organs for the release of the safety gear.
  • Both types of catch are triggered by a speed limiter / governor when a predetermined trip speed is exceeded.
  • a speed limiter a distinction is made between two types: the pendulum controllers and the centrifugal governors.
  • a drive machine 14 For moving the elevator car 10, a drive machine 14 is provided which in particular has a traction sheave 26 or traction sheave shaft driven by a motor 16 and a control (not shown).
  • the person skilled in the art distinguishes between gearless drive machines and drive machines with a gearbox.
  • the essential components of the drive machines are a motor 16, a brake, a traction sheave 26 and possibly a transmission.
  • the motor, the brake and possibly the gear are preferably constructed for the purpose of precise alignment and low-noise operation as an integral unit, for example, on a common base plate.
  • the motor 16 of the elevator drive machine 14 is usually an electric motor which can be adjusted to the desired parameters such as acceleration values, travel speeds, payload size, noise conditions, switching frequencies and Duty cycle is adjusted.
  • the motors must be very robust and overloadable in their electrical and mechanical parts.
  • the motors used in elevator systems are most often three-phase motors with one or more speeds, sometimes even DC motors. At higher speeds or special demands on the stopping accuracy pole-changing three-phase motors can be used with two speeds.
  • For electric motor speed control of DC motors can be found in the elevator systems general frequency converter.
  • the brake of a drive machine 14 for an elevator system works in particular as a holding brake and possibly also as a driving brake.
  • a holding brake it must hold the elevator car 10 at the desired holding position
  • a driving brake it has the task to bring the elevator car safely (and both in the loaded and unloaded state) at the desired stop position to stop.
  • the brake generally only has the task of a mechanical parking brake, which is combined with an electric engine braking.
  • Brake delays caused by the prime mover can be achieved by pole reversal in the case of corresponding three-phase motors or by mechanical brakes (for example, shoe brake, double-shoe brake).
  • the brake disk is arranged on the traction sheave shaft, in drive units with gearbox, the braking takes place on the transmission shaft.
  • a common material for the brake disc is gray cast iron.
  • a worm gear can be used for drive machines 14 of elevator systems.
  • the worm gear can transmit high power with large translations and is characterized by compact design and quiet running. With the same center distance, the translations can be varied within a wide range, so that a machine type can be used for lifts of various services.
  • the suspension element arrangement 20 For carrying the elevator car 10 and for transmitting the forces from the engine 14 to the elevator car 10, a suspension element arrangement 20 is provided.
  • the suspension element arrangement 20 comprises a plurality of parallel suspension elements, the two free ends of which are fastened in or on the elevator shaft 12 at attachment points 28a and 28b.
  • the support means initially run along the elevator shaft 12 down, loop around a counterweight washer 30 to which a counterweight 32 depends, and run back up towards the traction sheave 26 of the prime mover 14th
  • a counterweight 32 is often used to control traction generation between the suspension element and the traction sheave.
  • an antidote 32 also reduces the power consumption of the drive system.
  • the weight of the counterweight 32 is usually at most equal to the sum of the weight of the elevator car 10 and half of the maximum payload of the elevator installation. The full compensation, in which the drive energy is applied mainly to overcome the frictional resistance in the system, so there is load of the elevator car with half payload.
  • the shape of the counterweight is preferably adapted to the shape and size of the counterweight raceway provided within or separate from the hoistway 12 for the elevator car 10.
  • the counterweight 32 in the elevator shaft is preferably guided on suitable guide rails.
  • the support means After wrapping the traction sheave 26, the support means extend down again and wrap around the elevator car 10, which has for this purpose on its underside two Kabinentragharin 34a and 34b, which are respectively wrapped by the support means by about 90 °. Subsequently, the suspension elements run along the elevator shaft 12 upwards again to the second attachment point 28b.
  • the traction sheave 26 transmits the forces generated by the motor 16 to the suspension element arrangement 20, which is coupled both to the elevator cage 10 and to the counterweight 32. In this case, move the traction sheave 26, the elevator car 10 and the counterweight 32 by the support means in opposite directions in the rotation of the traction sheave Elevator shaft 12 up and down.
  • Fig. 1A shows the elevator car 10 in its lower operating end position (ie, the counterweight 32 in its upper position)
  • Fig. 1 B shows the elevator car 10 in its upper operating end position (ie, the counterweight 32 in its lower position).
  • a significant advantage of the traction sheave drive is the possibility to make do with relatively low engine torques of the engine 14 due to the provided counterweight 32.
  • the counterweight 32 is also routed along vertical guide rails, for example, on the walls of the elevator shaft 12.
  • buffers 38 for the elevator car 10 and buffer 40 for the counterweight 32 are usually arranged.
  • a plurality of buffers 38, 40 are provided in the region of the shaft pit, for example in the event of a failure of the brake of the drive system or when passing through the operating end positions of the elevator car 10, an overly hard placing of the elevator car 10 or counterweight 32 on the ground to prevent the pit.
  • the buffers 38, 40 can be implemented either as springs (energy-storing buffers) or hydraulically acting (energy-buffers).
  • the present invention is basically applicable to elevator systems of any types, numbers and arrangements of buffers.
  • FIGS. 1A and 1B While in FIGS. 1A and 1B the elevator car 10 and the counterweight 32 are arranged together in the elevator shaft 12, it is also possible to provide for the counterweight 32 its own counterweight shaft, which is separated from the elevator shaft 12 by a partition wall or the like.
  • FIGS. 1A and 1B below the cabin floor of the elevator car 10 on both sides of two car washers 34a, 34b provided so that the Elevator car 10 is guided by the support means.
  • the counterweight washer 30 may be mounted below it, rather than at the top of the counterweight 32, such that the suspension means undermine the counterweight 32.
  • the numbers of the support disks are not limited to only one counterweight support disk 30 and the two car washers 34a, 34b.
  • FIGS. 1A and 1B For example, a 1: 2 suspension of the elevator car 10 is illustrated by the suspension means assembly 20. But there are also other arrangements such as 1: 4 suspension, 1: 8 suspension, etc. possible, in which the area driven by the drive machine 14 of the support means four, eight, etc. times faster than the elevator car 10 moves ,
  • An elevator system with a 1: 4 suspension is for example in the WO 2006/005215 A2 The applicant describes in detail which document is therefore incorporated herein by reference in its entirety to the structure and operation of a 1: 4 suspension.
  • the prime mover 14 is in FIGS. 1A and 1B arranged in a machine room 22 above the elevator shaft 12, wherein the machine room 22 is separated from the elevator shaft 12 by a shaft ceiling 24, a cross member, a bridge or the like.
  • the prime mover 14 may alternatively be arranged below the elevator shaft 12 or next to this.
  • the prime mover 14 may also be mounted on the guide rails for the elevator car 10 and / or the counterweight 32.
  • the fastening points 28a, 28b for the free ends of the suspension elements are not necessarily positioned in the upper region of the elevator shaft 12. They can also be arranged in the lower region of the elevator shaft 12 or at any intermediate heights, with a correspondingly adapted course of the suspension elements. Also, the two attachment points 28a, 28b need not be arranged at approximately the same height, they may also be provided at different height positions.
  • the free ends of the support means can also be fixed directly to the counterweight 32 and to the elevator car 10.
  • compensating means are generally used in addition to the suspension means 20 described above. They are stretched over a located in the pit 36 deflection pulley between the cabin floor and underside counterweight 32 or optionally freely suspended between the elevator car 12 and counterweight 32. In this way, they should balance the weights of the upper support means and prevent a "jumping" of the elevator car 10 or the counterweight 32 when the counterweight 32 or the elevator car 10 touches or catches.
  • the traction sheave 26 is an integral part of the traction sheave drive machine 14. In each case, the traction sheave 26 must be optimally adapted to the type of support means arrangement 20 used for the elevator installation. Thus, the forces generated by the motor 16 of the prime mover 14, for example, in rope-like or belt-like support means are transmitted by traction from the traction sheave 26 on the support means 20, while in a chain-like support means, the traction sheave 26, however, is formed with a sprocket.
  • the traction effect achieved depends very much on the exact construction of the rope or belt-like suspension means and the associated traction sheave 26; an essential factor is, for example, the groove shape of the traction sheave 26.
  • the following groove shapes are used: half-round groove and V-groove, each with and without undercut.
  • the prime mover 14 generally includes a plurality of parallel traction sheaves 26 or a traction sheave 26 having a plurality of parallel power transmission sections, the number of which corresponds to that of the parallel support means of the suspension element assembly 20 of the elevator system.
  • FIGS. 2A and 2B show the structure of the support means assembly 20 for the elevator installation described above in more detail.
  • Fig. 2A comprises the suspension element assembly 20 a total of two belt-like support means (hereinafter also referred to as "support strap") 42 and two rope-like support means (hereinafter also referred to as "support cables”) 44.
  • support strap belt-like support means
  • support cables rope-like support means
  • the support means 20 includes only three support strap 42, but no support cables 44. Possible structures of the support strap 42 and the support cables 44 will be described later with reference to Fig. 3 to 9 explained in more detail.
  • the support means 42, 44 are each guided on a traction sheave 26 which is driven by a motor 16.
  • a drive shaft in particular a drive shaft designed in one piece with the motor shaft, can also be used for the suspension elements 42, 44.
  • the traction sheave 26 is designed so that both the belt-like support means 42 and the rope-like support means 44 can be performed together on her.
  • this set of support means includes only similar support straps 42 and similar support straps 44; but it is also possible to provide several different support strap 42 and / or support cables 44 in the set of support means.
  • the manufacturer of the elevator installation selects a number of belt-like suspension elements 42 and additionally a number of cable-like suspension elements 44 from the available set of suspension elements. He proceeds in such a way that in a first step he selects so many carrying straps 42 that the safety requirements of the elevator installation would be exceeded with another carrying strap 42. If the safety requirements of the elevator installation alone, for example, have not yet been met with the selected number of support straps 42, then the manufacturer additionally selects a number of support cables 44, so that the sum of the support straps 42 and the support cables 44 then meets the safety requirements.
  • the carrying straps 42 and carrying ropes 44 are selected by way of example such that the carrying capacity of a carrying strap 42 corresponds approximately to the carrying capacity of three carrying ropes 44.
  • Fig. 2A were chosen by the manufacturer of the elevator system two strap 42 and two support cables 44, since a total of three support strap 42 would mean unnecessary oversizing. Since the support straps 42 are generally also much more expensive than support cables 44, the in Fig. 2A shown Tragstoffan Aunt 20 with two strap 42 and two support cables 44 also significantly cheaper than the oversizing with three carrying strap 42nd
  • the manufacturer can increase the carrying capacity of the suspension element assembly 20 in principle by an additional support cable 44 so that the support means assembly would include a total of two support strap 42 and three support cables 44.
  • the carrying capacity of a carrying belt 42 corresponds to that of three carrying cables 42, it is more favorable in terms of assembly and manufacturing cost to replace the three carrying cables 42 with a carrying belt 44, so that the selected suspension means arrangement a total of only three carrying strap 42 contains.
  • the traction sheave 26 is in the example of FIGS. 2A and 2B designed so that they can in principle even more carrying strap 42 and support cables 44 can lead to increase the carrying capacity of the suspension element assembly 20 on.
  • the support straps 42, the support cables 44 and the traction sheave 26 are preferably designed so that the plurality of support straps 42 and support cables 44 can be guided on a common traction sheave 26 and that for the support belt 42 and the support cables 44, the same support means speeds can be ensured.
  • Decisive for this are in particular the groove shape of the traction sheave 26 and the wedge shape of the support belt 42nd
  • the support means assembly 20 may, of course, in principle include any number of belt-like support means 42 and rope-like support means 44, the factor of the load capacity between the belt-like and the rope-like support means 42, 44 may in principle be arbitrary and in particular must not represent an integer multiple.
  • tensile carrier in particular a plurality of rope-like tension members 46 in a belt-like molded body (belt body) 48 embedded.
  • Rope-type tension members 46 in the context of the present invention are, in particular, cables, strands, cords or braids made of metal wires, steel, plastic fibers, mineral fibers, glass fibers, carbon fibers and / or ceramic fibers.
  • the rope-like tension members 46 can each be formed from one or more single elements or from mono- or multi-stranded elements.
  • each tension member 46 comprises a two-ply core strand with a core wire (eg, 0.19 mm diameter) and two wire layers (eg, 0.17 mm diameter) wound around it, and single ply outer strands arranged around the core strand with a core wire (eg 0 , 17 mm diameter) and a beaten around this wire layer (eg 0.155 mm diameter).
  • a core wire eg, 0.19 mm diameter
  • two wire layers eg, 0.17 mm diameter
  • a beaten around this wire layer eg 0.155 mm diameter
  • the two wire layers of the core strand on the same impact angle while a wire layer of the outer strands is beaten against the direction of impact of the core strand and the outer strands are beaten against the direction of impact of their own wire layer around the core strand.
  • the present invention is not limited to tension members 46 having this particular tension member structure.
  • rope-like tension members 46 (sometimes referred to as cords) with small diameters or thicknesses transverse to the longitudinal extent of the support belt 42 allows traction sheaves 26 or drums 18 and pulleys 30, 34a, 34b use with small diameters.
  • the diameter of the tension members 46 is preferably in the range of 1.5 to 4 mm.
  • the support belt 42 has a molded body 48 in which a Switzerlandtownan extract is arranged with a total of four rope-like tension members 46.
  • the first main side 50 of the molded body 48 is provided for contact with the traction sheave 26. It has for this purpose two driving ribs in the form of V-ribs 52, which engage in associated grooves of the traction sheave 26 and are guided by these laterally, so that increase the contact pressure and thus the traction of the drive.
  • the material for the shaped body 48 of the support belt 42 is selected, for example, from an elastomer.
  • an elastomer For example, polyurethane (PU), polyamide (PA), polyethylene terephthalate (PET), polypropylene (PP), polybutylene terephthalate (PBT), polyethylene (PE), polychloroprene (CR), polyethersulfone (PES), polyphenylsulfide (PPS), polytetrafluoroethylene (PTFE ), Polyvinyl chloride (PVC), ethylene-propylene-diene rubber (EPDM) and the like may be used for the molded article 48, without the invention being restricted to said materials.
  • the storage of other tissues, tissue fibers or other fillers is possible.
  • the second main side 54 of the molded body 48 is provided for contact with the deflecting pulleys 30, 34a, 34b and has for this purpose a guide rib in the form of a wedge rib 56, which engages in an associated role of the deflecting plates 30, 34a, 34b and is laterally guided by them ,
  • the contact surfaces of the shaped body 48 which cooperate with the traction sheave 26, ie, the first or the second main side 50, 54, with so-called (wedge) ribs, which extend as elongated elevations in the direction of the longitudinal extent of the support belt 42 and preferably with correspondingly shaped grooves on the running surface of the traction sheave 26 engage.
  • the V-ribs ensure the V-ribs with their engagement in the grooves of the traction sheave 26 lateral guidance of the support belt 42 on the traction sheave 26th
  • the two main sides 50, 54 of the support belt 42 over its entire length or only in corresponding sections, in which they come into contact with the driving letter 26 and the various support and deflection plates 30, 34 a, 34 b of the elevator installation, with a special Be provided surface property, which in particular affects the sliding properties of the support belt 42.
  • the main side 50, 54 of the support belt 42 meshing with the traction surface of the traction sheave 26 may be provided with a traction-reducing coating, surface structure or the like.
  • the strap 42 may also be clad on one or both of the major sides 50, 54 with a fabric or the like to affect the properties of the strap surface.
  • the overall height of the support belt 42 is sized larger than its overall width.
  • the flexural rigidity of the support belt 42 is increased about its transverse axis and thus counteracts jamming in the grooves of the traction sheave 26 and the deflection pulleys 30, 34a, 34b.
  • the ratio is about 0.90.
  • the flank angle ⁇ of the driving ribs 52 of the first main side 50 is defined as an internal angle between the two flanks of a driving rib 52 and is in the embodiment about 90 ° (generally between 60 ° and 120 °, in particular between about 80 ° and about 100 °).
  • the correspondingly defined flank angle ⁇ of the guide rib 56 of the second main side 54 in this example is about 80 ° (generally between 60 ° and 100 °, in particular between about 80 ° and about 100 °).
  • the flank height of the guide rib 56 is greater than the flank height of the two driving ribs 52.
  • the guide rib 56 deeper in a corresponding groove of the guide pulleys 30, 34a, 34b dive than the driving ribs 52 and the associated grooves of the traction sheave 26 the case is.
  • the edge width of the guide rib 56 is greater than that of the two driving ribs 52. Due to the larger edge width of the guide rib 56 of the support belt 42 is guided on its second main page 54 over a wider range in the transverse direction.
  • the V-ribs 52, 56 each have a flattened tip (in cross-section substantially trapezoidal V-ribs) with a certain width which is at least as large as the minimum distance of the corresponding counter flanks of the grooves of the discs 26, 30, 34a, 34b.
  • the edge formed in these counter flanks does not touch the flanks of the V-ribs 52, 56, so that they are protected from a corresponding notch effect.
  • the first main side 50 may have a coating with a PA foil or the like, at least in the regions of the V-ribs 52 which frictionally engage the flanks of the traction sheave 26. It is also possible to provide a V-rib 52 with a friction-reducing and / or noise-reducing coating.
  • This in Fig. 4 illustrated second embodiment of a support belt 42 differs from the example described above in that instead of the two V-ribs 52 on the first main side 50 of the molding 48, only one V-rib 52 is formed. Also, this one V-rib 52 has a flank angle ⁇ of about 90 ° (generally between 60 ° and 120 °, in particular between about 80 ° and about 100 °) and a flattened tip. Overall, results in this strap 42 both on the first and on the second main side 50, 54 a V-profile.
  • first main side 50 of the shaped body 48 it is also possible for the first main side 50 of the shaped body 48 to be rounded overall.
  • the present invention comprises both support strap 42, in which the height is greater than the width ( Fig. 5A ), as well as carrying strap 42, in which the width is greater than the height ( Fig. 5B ).
  • both rectangular and square cross-sectional shapes for the strap 42 are conceivable.
  • the ratio of the total width to the overall height of the support belt 42 is in the range between 0.8 and 1.2, more preferably in the range between 0.9 and 1.1.
  • the shaped body 48 of the support belt 42 is basically possible to form from two or more layers.
  • the same material with the same properties in each case the same material with different properties or different materials can be used for the different belt layers.
  • the properties of the material (s) for the molded body 48 include in particular the hardness, the flowability, the consistency, the connection properties with the cable-like tension members 46, the color and the like.
  • FIGS. 6 and 7 show two further embodiments of a usable for the suspension element assembly according to the invention belt-like support means 42, which is designed substantially as a V-ribbed belt in the form of a flat belt.
  • the flat belt 42 in 6 and 7 each contain in its longitudinal direction oriented tension members 46, which consist of metallic strands (eg steel strands) or non-metallic strands (eg of synthetic fibers / chemical fibers) as in the above embodiments.
  • the tension members 46 provide the support belt 42 with the required tensile strength and / or longitudinal rigidity.
  • the wedge ribs 52 and the grooves have a substantially triangular cross-section, in the embodiment according to FIG Fig. 7 a substantially trapezoidal.
  • the existing between the flanks of a V-rib 52 or a groove angle (flank angle ⁇ ) affects the operating characteristics of the V-ribbed belt (in particular its smoothness and its traction).
  • flank angle ⁇ is in a range of about 80 ° to about 100 °.
  • An optimum compromise between the conflicting requirements is achieved with V-ribbed belts having a flank angle ⁇ of about 90 °.
  • the V-ribbed belt 42 has, in addition to the substantially trapezoidal V-ribs 52 and grooves in its longitudinal direction, also transverse grooves 57. These transverse grooves 57 improve the bending flexibility of the support belt 42, so that it can also interact with traction sheaves, support and deflection rollers, which have extremely small diameter.
  • Fig. 8 shows a section through a support cable 44 and Fig. 9 11 shows a perspective view of the support cable 44.
  • the support cable 44 basically comprises an inner strand layer 58 of a plurality of supporting strands 60 disposed about a core strand 61 and an outer strand layer 62 of a plurality of supporting strands 64.
  • the supporting strands 60, 64 are each turned or beaten from individual fibers of steel, plastic, a synthetic composition, aramid or Zylon.
  • Each individual strand 60, 64 is preferably treated with an impregnating agent (eg polyurethane solution) to protect its fibers.
  • an impregnating agent eg polyurethane solution
  • a friction-reducing intermediate casing 68 is provided between the outer strand layer 58 and the inner strand layer 62.
  • the gaps and voids between the individual strands 60 may additionally be provided by means of filling strands 70, for example made of plastic such as polyamide, against the supporting strands 60 supportive, are filled to achieve a nearly circular inner strand layer 58.
  • the rope-type suspension element 44 of the suspension element arrangement 20 can in principle be designed in the manner of a cross-strike rope, a dorsal rope or a cable sling rope. While in 8 and 9 a support cable 44 is shown with sheath 66, as an alternative, sheathless support cables 44 can be used. 8 and 9 show a support cable 44 with two strand layers 58 and 62; But it can also be used as supporting cables 44 with only one or more than two Litzenlagen.

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP07123885A 2007-12-20 2007-12-20 Agencement de moyens de portage pour une installation d'ascenseur, installation d'ascenseur dotée d'un tel agencement de moyens de portage, ensemble de moyens de portage pour une telle installation de moyens de portage et procédé de fabrication d'un tel agencement de moyens de portage Withdrawn EP2072447A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07123885A EP2072447A1 (fr) 2007-12-20 2007-12-20 Agencement de moyens de portage pour une installation d'ascenseur, installation d'ascenseur dotée d'un tel agencement de moyens de portage, ensemble de moyens de portage pour une telle installation de moyens de portage et procédé de fabrication d'un tel agencement de moyens de portage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07123885A EP2072447A1 (fr) 2007-12-20 2007-12-20 Agencement de moyens de portage pour une installation d'ascenseur, installation d'ascenseur dotée d'un tel agencement de moyens de portage, ensemble de moyens de portage pour une telle installation de moyens de portage et procédé de fabrication d'un tel agencement de moyens de portage

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EP2072447A1 true EP2072447A1 (fr) 2009-06-24

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EP07123885A Withdrawn EP2072447A1 (fr) 2007-12-20 2007-12-20 Agencement de moyens de portage pour une installation d'ascenseur, installation d'ascenseur dotée d'un tel agencement de moyens de portage, ensemble de moyens de portage pour une telle installation de moyens de portage et procédé de fabrication d'un tel agencement de moyens de portage

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2688827A1 (fr) * 2011-03-21 2014-01-29 Otis Elevator Company Elément de tension d'ascenseur
EP3403977B1 (fr) * 2017-04-20 2021-06-02 Otis Elevator Company Élément tendeur de courroie pour système d'ascenseur
CN114867678A (zh) * 2019-12-20 2022-08-05 因温特奥股份公司 具有多个不同吊具的电梯设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1325881A1 (fr) 2000-10-10 2003-07-09 Mitsubishi Denki Kabushiki Kaisha Dispositif d'elevateur
EP1391413A2 (fr) * 1998-02-26 2004-02-25 Otis Elevator Company Systeme d'ascenseur
EP1428927A1 (fr) 2002-12-04 2004-06-16 Inventio Ag Cable synthétique renforcé pour ascenseurs
WO2006005215A2 (fr) 2004-07-12 2006-01-19 Inventio Ag Ascenseur et ensemble de poulies pour un ascenseur
EP1795483A1 (fr) * 2004-09-30 2007-06-13 Mitsubishi Denki Kabushiki Kaisha Ascenseur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391413A2 (fr) * 1998-02-26 2004-02-25 Otis Elevator Company Systeme d'ascenseur
EP1325881A1 (fr) 2000-10-10 2003-07-09 Mitsubishi Denki Kabushiki Kaisha Dispositif d'elevateur
EP1428927A1 (fr) 2002-12-04 2004-06-16 Inventio Ag Cable synthétique renforcé pour ascenseurs
WO2006005215A2 (fr) 2004-07-12 2006-01-19 Inventio Ag Ascenseur et ensemble de poulies pour un ascenseur
EP1795483A1 (fr) * 2004-09-30 2007-06-13 Mitsubishi Denki Kabushiki Kaisha Ascenseur

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2688827A1 (fr) * 2011-03-21 2014-01-29 Otis Elevator Company Elément de tension d'ascenseur
EP2688827A4 (fr) * 2011-03-21 2014-11-19 Otis Elevator Co Elément de tension d'ascenseur
EP3403977B1 (fr) * 2017-04-20 2021-06-02 Otis Elevator Company Élément tendeur de courroie pour système d'ascenseur
US11427439B2 (en) 2017-04-20 2022-08-30 Otis Elevator Company Tension member for elevator system belt
AU2018202597B2 (en) * 2017-04-20 2023-11-16 Otis Elevator Company Tension member for elevator system belt
CN114867678A (zh) * 2019-12-20 2022-08-05 因温特奥股份公司 具有多个不同吊具的电梯设备
US11891277B2 (en) 2019-12-20 2024-02-06 Inventio Ag Elevator system comprising a plurality of differing support means

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