EP2020399A1 - Elément de fixation pour un cable d'ascenseur - Google Patents

Elément de fixation pour un cable d'ascenseur Download PDF

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Publication number
EP2020399A1
EP2020399A1 EP08380233A EP08380233A EP2020399A1 EP 2020399 A1 EP2020399 A1 EP 2020399A1 EP 08380233 A EP08380233 A EP 08380233A EP 08380233 A EP08380233 A EP 08380233A EP 2020399 A1 EP2020399 A1 EP 2020399A1
Authority
EP
European Patent Office
Prior art keywords
rope
ropes
elevator
fixing element
polymer material
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.)
Withdrawn
Application number
EP08380233A
Other languages
German (de)
English (en)
Inventor
Miguel Angel Madoz
Izaro Zulaika
Xabier Elizegi
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.)
Orona S Coop
Original Assignee
Orona S Coop
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Orona S Coop filed Critical Orona S Coop
Publication of EP2020399A1 publication Critical patent/EP2020399A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings

Definitions

  • the object of the present invention relates to a compact fixing element for ropes, specifically steel ropes coated with a polymer material for the suspension and movement of the car of the elevator and of the counterweight.
  • Conventional elevators are made up of a car and a counterweight, supported by ropes which are pulled by friction by a sheave driven by an engine.
  • the ends of the ropes are fixed to different elements of the installation.
  • a suspension called 1:1 the car and the counterweight hang directly from the ends of the ropes
  • a suspension called 2:1 the car and the counterweight are supported by respective sheaves assembled on the car and counterweight on which the ropes pass, their ends being fixed in a framing arranged in the machine room of the elevator immediately above the shaft through which the car and the counterweight move.
  • the conventional fixing element for fixing the ends of the ropes consists of a rope securing device which in its configuration is basically formed by three parts: the body, the wedge and the rod.
  • a threaded rod is assembled and/or fixed on the rope securing device body, which rod will be useful for fixing the assembly of the rope securing device to the fixing point in the installation.
  • the rope securing devices further have a spring in the rod which is useful for regulating the load supported by the rope in comparison with the rest of the ropes, seeking a uniform distribution of the load which they support.
  • This rope securing device has as an advantage optimizing the space in the horizontal projection necessary for fixing the ends of the ropes, but on the other hand it has as a drawback the impossibility of independently regulating the tension of each rope since all of them are secured to the intermediate part, from which a threaded rod which is secured by intermediation of a spring regulating the tension for supporting the ropes starts.
  • Rope securing device solutions with a reduced projection as in Japanese patent JP11037224 , European patent EP-0619443 , etc...., have been adopted, which solutions are adapted to bare ropes without a polymer coating and which force the end of the rope against the rope securing device body and it is the plastic deformation between both which achieves removably securing these ends of the ropes to the rope securing device body.
  • the compact fixing element for elevator ropes proposed by the present invention solves all the previously indicated problems shown by the state of the art since it provides individual fixing means for each elevator rope significantly reducing the plan projection with respect to traditional systems, thereby preventing the fleet angle of the ropes and therefore the premature wear thereof, at the same time being made up of an easy to assemble and disassemble element facilitating the maintenance operations of the ropes coated with polymer.
  • Another aspect of the invention consists of the approximately straight fixing of the terminal end of each rope without the necessary curvature as occurs in traditional wedge systems, thereby preventing permanent deformations of the ropes, the coatings or both, in addition to reducing the plan projection given that there is no free end of the rope and therefore it does not require assembling any clip for fixing this free end to the rest of the rope.
  • An object of the invention is that the ends of the ropes are secured by means of pressure, which will allow an easy assembly and disassembly of the ends of the rope from the rope securing device and the possible reuse of the ropes and/or rope securing devices on a number of occasions.
  • the rope used for these rope securing devices will be made of steel and preferably of high strength steel and with a polymer coating, more specifically an elastomer or thermoplastic material and preferably polyurethane.
  • the rope used will have a diameter equal to or less than 6 mm, said rope being formed by steel wires with a diameter equal to or less than the 0.5 mm, high strength steel wires being used, such as wires with resistance to breaking equal to or greater than 2000 N/mm 2 .
  • the compact fixing element proposed by the invention comprises:
  • the plan projection of the fixing element is such that the distance between the centers of the section of the ropes corresponding to every two adjacent fixing elements is less than or equal to three times the distance between contiguous grooves of the traction and/or deviation sheaves, preferably approximately equal to the distance between contiguous grooves, thereby achieving a passing of the ropes with a very small angle with respect to the grooves of the sheaves or even the ropes being parallel at the height of the fixing element and preventing the fleet angle in any of the cases and thereby a premature wear of the ropes since such ropes do not fall on the grooves of the sheaves with a pronounced angle.
  • the purpose of the first end body for fixing the rope is to be secured to the fixing point of the shaft of the elevator chosen for it, either directly or through a spring regulating the tension of the rope, the rope assembly and the securing parts forming which has been called a "rope landing".
  • This fixing point can consist of a metal part directly secured to the walls of the shaft of the elevator or a support which is fixed to the counterweight guides and/or elevator guides, or it can also be secured directly to the car and/or counterweight in the 1:1 suspension configuration.
  • This first body is further useful as a support for the rest of the components of the fixing element.
  • the second body is inserted or joined to the first of the bodies described and the end section of rope to be secured by this rope securing device enters therein, adopting an approximately straight position.
  • This second element is capable of trapping the end of the rope, for which it can be constructed in the form of several sections adjustable in relation to one another between which there are adjustment stops limiting the constriction of the rope inserted between these sections. This construction causes the approximation of these elements forming the second body and therefore achieves the clamping of the rope on the rope securing device preventing the separation thereof.
  • the friction force between the polymer coating of the rope and the second fixing body is at least 80% of the breaking load of the rope, such that the contact length between the end of the rope with polymer coating and the second body clamping the rope must be such that it achieves fixing the rope on the rope securing device and the friction force between both is maintained within the previously indicated values.
  • the contact surface between the second body and the polymer coating of the rope have a high friction, which can be achieved in several ways, such as for example by knurling the inner body of the second part, or providing a surface treatment increasing the friction force, or making the contact surface of the second body rough, or including protrusions such as teeth, or including a chip coating, etc...., i.e., means increasing the friction between the second rope securing device body and the end of the rope preventing the slipping between both and thereby the rope securing device being separated from the rope.
  • the fixing element comprises pressure means for achieving the necessary friction force, which means apply pressure on the second body and therefore on the rope clamped therein.
  • these pressure means can be screws which are screwed on the first of the bodies and tightened against the rope to the second of the bodies.
  • a locking element is arranged to prevent pressure from being involuntarily lost, for example by means of the loosening thereof.
  • the second rope securing device body can be formed by a wedge-shaped arrangement and a threaded element which tightens second body on the rope, aided by the wedge shape, in which case the threaded element for tightening the wedge can have a lock nut element preventing the pressure loss of the rope on the rope securing device, or it can have a screw-shaped retention element preventing the involuntary pressure loss thereof.
  • the first body for fixing the rope is generally carried out in a single part, although it could be formed in two or more parts, which allow rotation in relation to one another and therefore the auto-orientation of the ropes, thereby preventing stress or turning torques in the ropes themselves or in the coupling, which are not exclusively the actual tensile stress exerted by the ropes when supporting the elevator.
  • the elevator apparatus incorporating at least one fixing element for ropes as previously defined is also an object of the invention.
  • Figures 1 to 3 depict the state of the art and the problems which the rope securing device currently used in elevators have.
  • Figure 1 thus shows a rope securing device of the type normally used, formed by a main body or rope securing device body (1) in which a wedge body (2) is inserted, between which wedge the rope (3) is trapped and retained.
  • the rod (5) is joined to this rope securing device body through the rotating pin (4), which rod is secured at the fixed joining point to the shaft of the elevator through a spring (6) regulating the tension of the rope, its compression run being limited by means of respective nuts and lock nuts.
  • This joining point can be the walls or the ceiling of the elevator shaft, or the guides, either counterweight guides and/or guides of the elevator itself, or directly the actual car and/or counterweight.
  • the width of the body (1) is influenced by the curvature that the rope (3) may have, but what is unquestionable is the large width occupied by this rope securing device above all when it is combined with other rope securing devices of a traction system of the elevator with multiple ropes, as shown in Figure 2 .
  • FIG. 2 shows a "rope landing" of a conventional elevator. This figure depicts the support (7) of the rope landing to which all the rods (5) are secured through the corresponding springs (6) regulating the tension of the ropes. These rods are secured to the bodies (1) of the different rope securing devices and these will secure the ropes (3).
  • Figure 4 depicts a first embodiment of the object of the rope securing device of the invention, said rope securing device formed by means of:
  • the fundamental purpose sought in addition to its being a safe element for securing the ropes, is that the plan projection of the fixing element is such that the distance between the centers of the section of the ropes corresponding to every two adjacent fixing elements is less than or equal to three times the distance between contiguous grooves of the traction and/or deviation sheaves, whereby preventing a fleet angle between ropes and sheaves prematurely deteriorating the ropes.
  • the first body (9) forms what is the rope securing device body and from it the rod (5) projects at the upper part, on which the spring regulating the tension of the rope will be fixed.
  • This first body (9) has a central orifice (12) in which the second body (10) is inserted and within such second body, the rope (3).
  • This second body (10) can be divided into two halves or be in a single part with an open groove, for the purpose of allowing the constriction of the central orifice through which the rope (3) of the elevator is introduced.
  • the groove or grooves will define the contact between the parts of the second body and will be the maximum tightening stop of the second body.
  • a retention nut (14) is arranged which prevents the fall during the assembly or disassembly of the second body (10) and which will be joined by means of screwing to the first body.
  • Figure 5 depicts an embodiment variant of the rope securing device of the invention formed in this by means of:
  • the second body (10) is a longitudinally open body with a groove (15), in one of which sections it has a threaded area in which the pressure means consisting of a third body (11), in this case carried out as a nut, are inserted.
  • the second body (10) is cone-shaped and the more the third body (11), i.e., the nut, is introduced, the more the groove (15) closes and therefore the more the second body (10) tightens against the rope, is a relevant feature.
  • a second nut is introduced acting as a lock nut and by means of tightening the nut and lock nut the loosening of the retention system of the ropes is prevented.
  • Figure 6 depicts an alternative solution for the rope securing device which shows the first body (9) for fixing the rope securing device, the second body (10) of the rope securing device formed by a cylindrical body open on the side and projecting in respective side flanges (17), such that when such flanges are tightened in relation to one another by means of the third body (11) or third bodies, the cylindrical area tightens the rope (3) against itself.
  • FIG. 7 depicts another alternative solution of the rope securing device of the invention.
  • This solution shows the first body (9) for fixing the rope securing device having a cone-shaped extension and inside which the end of the rope (3) for supporting the elevator is introduced.
  • the second body (10) there is arranged an inner cone-shaped body which, together with the cone shape of the first body (9), causes a relative movement between both bodies reducing the diameter of the central orifice in which the end of the rope (3) is inserted.
  • This second body (10) has a longitudinal grooving which, when said grooving is closed, presses the rope located therein and secures the rope, preventing the rope from coming out of said rope securing device.
  • the third body (11) In order to compress the second body (10) against the rope (3) the third body (11) is used, which body literally pushes said second body (10) against the first body (9) and the cone shape of both of them compresses the rope, fixing it with respect to the rope securing device.
  • the means preventing the loosening of the third body (11) against the second body (10) can be made using the configuration of the first body (9) as observed in the attached figure.
  • Figure 8 depicts another solution of the rope securing device of the invention.
  • This solution shows the first body (9) for fixing the rope securing device and on this device the second body (10) is joined, which body has a cylindrical shape inside which the rope (3) is placed, that body (10) having a hollow cone-shaped protrusion arranged on one side, inside which the third wedge-shaped body (11) is arranged, which the more it penetrates, the more secure the rope (3) is against the walls of the second body (10).
  • a threaded ring (19) which could be a nut, is arranged to prevent this third body (11) from coming out, preventing the backwards movement of the wedge-shaped third body (11) in charge of retaining the rope.
  • Figure 9 depicts a version of the rope securing device of the invention similar to that of Figure 4 , in which the first body (9) is divided into two sections, one which blocks the rope securing device and the second hollow one in which the elevator rope is introduced therein.
  • the second body (10) is cylindrical and clamps the elevator rope and can be divided into two halves or be a single part with an open groove for the purpose of allowing the constriction of the central orifice through which the rope (3) of the elevator is introduced.
  • This body (10) traps the rope (3) as a result of the action of the third body (11), formed in this case by three screws compressing the second body (10) against the rope (3) of the elevator.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP08380233A 2007-08-03 2008-07-30 Elément de fixation pour un cable d'ascenseur Withdrawn EP2020399A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200702195A ES2341930B1 (es) 2007-08-03 2007-08-03 Elemento de fijacion compacto para cables de elevadores y aparato elevador que incorpora dichos elementos de fijacion.

Publications (1)

Publication Number Publication Date
EP2020399A1 true EP2020399A1 (fr) 2009-02-04

Family

ID=39930666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08380233A Withdrawn EP2020399A1 (fr) 2007-08-03 2008-07-30 Elément de fixation pour un cable d'ascenseur

Country Status (2)

Country Link
EP (1) EP2020399A1 (fr)
ES (1) ES2341930B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749520A2 (fr) * 2012-12-30 2014-07-02 Kone Corporation Ensemble de borne de câble et élévateur
EP2851325A1 (fr) * 2013-09-24 2015-03-25 Kone Corporation Ensemble de borne de câble et un élévateur
EP3199482A1 (fr) 2016-02-01 2017-08-02 Kone Corporation Dispositif et arrangement de terminal de câble et ascenseur
US10843903B2 (en) 2018-03-23 2020-11-24 Otis Elevator Company Drive belt for a people conveyor
CN115285818A (zh) * 2022-08-01 2022-11-04 昆明高金金马机电设备有限公司 一种前卸式斜井箕斗

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB203531A (en) * 1922-09-18 1923-09-13 Frederick Arthur Bullivant An improved rope stopper
US2518699A (en) * 1948-04-08 1950-08-15 Andrew J Lucas Safety device for elevators
FR1178528A (fr) * 1957-06-11 1959-05-12 Heuer Hammer Schwerschmieden B Perfectionnements apportés aux dispositifs de serrage pour relier un câble de levage à une plate-forme établie dans un puits de mine
EP0619443A1 (fr) 1993-04-20 1994-10-12 Brugg Drahtseil AG Pièce de jonction à l'extrémité d'un câble métallique
DE19708029C1 (de) * 1997-02-27 1998-09-17 Jakob Ag Verfahren zum Herstellen einer zugfesten Verbindung an einem Drahtseil durch Befestigen eines Anschlussstückes an einem Drahtseilende
JPH1137224A (ja) 1997-07-18 1999-02-12 Mitsubishi Electric Corp ロープ端末装置及びその製造方法
EP1026115A1 (fr) * 1999-02-05 2000-08-09 Michael Schmitt Dispositif de maintien de câble pour ascenseurs
JP2001139259A (ja) 1999-11-11 2001-05-22 Hitachi Building Systems Co Ltd エレベーター
EP1140689A1 (fr) 1998-12-31 2001-10-10 Otis Elevator Company Terminaison de type pince clavette pour element de tension d'ascenseur
EP1254069A1 (fr) 2000-01-11 2002-11-06 Otis Elevator Company Dispositif embout de cable de tension plat et souple
EP1748104A1 (fr) * 2004-05-10 2007-01-31 Coop, Orona S. Cable et courroie pour limitateur de vitesses d'ascenseurs et poulies associees

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB203531A (en) * 1922-09-18 1923-09-13 Frederick Arthur Bullivant An improved rope stopper
US2518699A (en) * 1948-04-08 1950-08-15 Andrew J Lucas Safety device for elevators
FR1178528A (fr) * 1957-06-11 1959-05-12 Heuer Hammer Schwerschmieden B Perfectionnements apportés aux dispositifs de serrage pour relier un câble de levage à une plate-forme établie dans un puits de mine
EP0619443A1 (fr) 1993-04-20 1994-10-12 Brugg Drahtseil AG Pièce de jonction à l'extrémité d'un câble métallique
US5513923A (en) * 1993-04-20 1996-05-07 Brugg Drahtseil Ag Connection piece on the end of a wire cable
DE19708029C1 (de) * 1997-02-27 1998-09-17 Jakob Ag Verfahren zum Herstellen einer zugfesten Verbindung an einem Drahtseil durch Befestigen eines Anschlussstückes an einem Drahtseilende
JPH1137224A (ja) 1997-07-18 1999-02-12 Mitsubishi Electric Corp ロープ端末装置及びその製造方法
EP1140689A1 (fr) 1998-12-31 2001-10-10 Otis Elevator Company Terminaison de type pince clavette pour element de tension d'ascenseur
EP1026115A1 (fr) * 1999-02-05 2000-08-09 Michael Schmitt Dispositif de maintien de câble pour ascenseurs
JP2001139259A (ja) 1999-11-11 2001-05-22 Hitachi Building Systems Co Ltd エレベーター
EP1254069A1 (fr) 2000-01-11 2002-11-06 Otis Elevator Company Dispositif embout de cable de tension plat et souple
EP1748104A1 (fr) * 2004-05-10 2007-01-31 Coop, Orona S. Cable et courroie pour limitateur de vitesses d'ascenseurs et poulies associees

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749520A2 (fr) * 2012-12-30 2014-07-02 Kone Corporation Ensemble de borne de câble et élévateur
EP2749520A3 (fr) * 2012-12-30 2014-10-08 Kone Corporation Ensemble de borne de câble et élévateur
US9422134B2 (en) 2012-12-30 2016-08-23 Kone Corporation Rope terminal assembly and an elevator
EP2851325A1 (fr) * 2013-09-24 2015-03-25 Kone Corporation Ensemble de borne de câble et un élévateur
CN105579379A (zh) * 2013-09-24 2016-05-11 通力股份公司 绳索端头组件和电梯
US10081516B2 (en) 2013-09-24 2018-09-25 Kone Corporation Rope terminal assembly and an elevator
EP3199482A1 (fr) 2016-02-01 2017-08-02 Kone Corporation Dispositif et arrangement de terminal de câble et ascenseur
US10843903B2 (en) 2018-03-23 2020-11-24 Otis Elevator Company Drive belt for a people conveyor
CN115285818A (zh) * 2022-08-01 2022-11-04 昆明高金金马机电设备有限公司 一种前卸式斜井箕斗
CN115285818B (zh) * 2022-08-01 2024-04-19 昆明高金金马机电设备有限公司 一种前卸式斜井箕斗

Also Published As

Publication number Publication date
ES2341930A1 (es) 2010-06-29
ES2341930B1 (es) 2011-05-25

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