EP1832490A2 - Pince débrayable pour porteurs d'une installation automatique de transport à câble - Google Patents

Pince débrayable pour porteurs d'une installation automatique de transport à câble Download PDF

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Publication number
EP1832490A2
EP1832490A2 EP06077159A EP06077159A EP1832490A2 EP 1832490 A2 EP1832490 A2 EP 1832490A2 EP 06077159 A EP06077159 A EP 06077159A EP 06077159 A EP06077159 A EP 06077159A EP 1832490 A2 EP1832490 A2 EP 1832490A2
Authority
EP
European Patent Office
Prior art keywords
running cable
cable
jaws
trolley
crossbars
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.)
Granted
Application number
EP06077159A
Other languages
German (de)
English (en)
Other versions
EP1832490B1 (fr
EP1832490A3 (fr
Inventor
Ferruccio Levi
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.)
High Technology Industries SpA
Original Assignee
High Technology Investments BV
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38316693&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1832490(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from ITMI20052336 external-priority patent/ITMI20052336A1/it
Priority claimed from ITMI20060069 external-priority patent/ITMI20060069A1/it
Application filed by High Technology Investments BV filed Critical High Technology Investments BV
Publication of EP1832490A2 publication Critical patent/EP1832490A2/fr
Publication of EP1832490A3 publication Critical patent/EP1832490A3/fr
Application granted granted Critical
Publication of EP1832490B1 publication Critical patent/EP1832490B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/12—Cable grippers; Haulage clips
    • B61B12/122—Cable grippers; Haulage clips for aerial ropeways

Definitions

  • the present invention refers to a binding system for carriers of an automatic cableway installation of the type equipped with two carrying cables and one running cable.
  • the installations of this type are known among technicians with the initials 3S; the two carrying cables are usually parallel and at the same height, with a transverse distance between them typically in the range of 60-100 cm; the running cable is usually in the mid-plane between the two carrying cables, at a slightly lower height.
  • the carriers rest on the carrying cables by means of suitable trolleys, and are bound to the running cable which drives it by moving it at a constant speed (typically 6-8 m/sec); when a carrier reaches a terminal or intermediate station, suitable mechanisms release the trolley from the running cable, to slow the carrier, to stop it or to make it move at low speed at the unloading or loading zone, and then to accelerate it and bind it once again with the running cable.
  • a constant speed typically 6-8 m/sec
  • suitable mechanisms release the trolley from the running cable, to slow the carrier, to stop it or to make it move at low speed at the unloading or loading zone, and then to accelerate it and bind it once again with the running cable.
  • the trolleys of the carrier normally leave the carrying cables and transit on suitably-shaped rigid rails.
  • Cable installations are typically used as ski-lifts on mountain lines with considerable slope; however, for practical reasons, the acceleration and deceleration of the carriers in the stations occurs on rails arranged flat or with little slope; normally, at the exit of at least one of the stations, a more or less accentuated concavity is therefore present which requires the presence of deflection rollers placed atop the running cable to keep it parallel to the carrying cables and to the sliding rails of the carriers.
  • binding means are composed of support trolleys on the carrying cables and connection vices to the running cable; on the other hand, these being installations of heavy type characterised by the presence of carriers of considerable mass (typically 6000 kg), the forces in play for making the trolleys integral with the running cable and for manoeuvring the vices are very high.
  • the trolley moves on the line supports, it is obliged to lift the running cable from its bases on the support, and this generates additional forces in the trolley which can also be much greater than those due to the weight of the loaded carrier.
  • Object of the present invention is that of making binding means of the carriers to the installation equipped with a trolley and vices with suitable characteristics, so to satisfy the contrasting functional needs, permit simplifying the geometry of the terminal stations, and permit reducing the dynamic effects for the passengers and for the structures during the station manoeuvres.
  • the trolley takes best advantage of its advantageous characteristics if it is equipped with vices functioning symmetrically with respect to the running cable plane.
  • One aspect of the present invention refers to a binding system for carriers or telphers of an automatic cableway installation, said installation having at least two carrying cables and at least one running cable, comprising a trolley provided with carrying wheels for the support on the carrying cables, at least one vice for binding the trolley to the running cable, a suspension arm bound to such trolley, in turn connected with a suspension strut for the support of the telpher, characterised in that said at least one vice has two jaws which rotate in a symmetrical manner with respect to the entrance plane of the running cable, which is clamped.
  • the binding means of the carriers to the cableway installation comprise a trolley equipped with connection vices preferably comprising eight carrying wheels 1 intended to slide on carrying cables 12, coupled in four equalisers 2, in turn articulated to the ends of a rigid rectangular frame 3; the articulation of each equaliser with the frame permits a limited rotation in the plane of the wheels, but does not permit a rotation with regard to the horizontal plane (steering).
  • the rigid frame 3 is formed by two longitudinal members 4, two external crossbars 5 and by four internal crossbars 6.
  • the external crossbars 5 are placed near the articulations of the equalisers 2, while the inner crossbars 6 support the mentioned vices 7 of connection to the running cable 11.
  • a suspension arm 8 is articulated between the two more internal crossbars 6, through a pin 9 or an equivalent device placed at a height slightly lower than that of said cables; said two vices are arranged symmetric with respect to said suspension arm, along an axis parallel to the carrying cables.
  • auxiliary wheels 10 are positioned, equipped with only one flange, used to permit the movement of the carrier on the curved station rails.
  • the auxiliary wheels are arranged inside, between the carrying cables, at a height such that the support plane on the rails is slightly lower than the carrying cables and slightly higher than the lower edge of said crossbars.
  • the auxiliary wheels are equipped with flange only on the internal side towards the running cable.
  • the trolley is illustrated at the passage over a line support; in the figure the position is recognised regarding the carrying wheels 1, carrying cables 12, running cable 11, auxiliary wheels 10, and suspension arm 8 in vertical position; the figure then shows the schematisation of a symmetrical vice 7 according to the present invention as illustrated in detail in the subsequent figures and the position of the friction blocks 15, used for dragging the carriers along the rails and the curves of the stations.
  • the particular shape of the trolley according to the invention permits the running cable 11 to pass under the holding rollers 13 without interferences with the vices 7, and to pass over the support rollers 14 with a limited lifting of the same running cable.
  • the trolley is shaped such to permit the transit at rollers placed atop the running cable, without said rollers coming into contact with any part of the trolley or vices installed on the trolley.
  • the geometrical arrangement of the various elements of the trolley permits the insertion of guide elements 18 at the support rollers 14, capable of correctly positioning the running cable 11 in the groove of the rollers 14, also in the case of an irregular lateral movement after the lifting.
  • the running cable 11 is then maintained substantially rectilinear in the section comprised between the external crossbars 5 of the rigid frame 3; when the trolley passes on the line supports and lifts the running cable, the deflection of such cable predominantly occurs on the same crossbars 5, which transmit the corresponding load directly onto the carrying wheels 1, without straining the other elements of the trolley.
  • Said vices are aligned with each other and with said external crossbars so that when the trolley lifts the running cable at the passage over the line supports, said running cable sustains most of the deflection by being based on said two external crossbars and little or no deflection on said four internal crossbars.
  • Figure 4 shows a transverse view of the trolley with the trolley in a terminal station during the manoeuvre of the vice.
  • the running cable 11 necessarily sustains an upward concave curving due to the holding rollers 13;
  • the symmetrical-opening vices 7, preferably functioning without dead centre, are driven by a cam 19 which generates a system of forces in the trolley with no horizontal resultant and with limited and stabilising vertical resultant;
  • the carriers can be moved in the station by means of wheels 20 which act on the friction blocks 15;
  • the shape of the trolley and of the vices permits drawing the mechanical power necessary for the dragging by the same holding rollers 13, for example by means of trapezoidal belts 21.
  • the carrying wheels 1 in the rectilinear path in the stations rest on sliding rails 23 and the auxiliary wheels 10, in the curved paths, rest on auxiliary rails 22.
  • the same auxiliary rails 10 can be used for the paths in the storage rails.
  • the vice 7 is perfectly symmetrical with respect to a vertical plane; it is formed by two jaws 71, each articulated with a fixed structure 76 in a pin 72.
  • the jaws 71 clamp the cable 11 under the action of two elastic systems 75.
  • the pins 72 have axis substantially parallel to the running cable, and are placed near said symmetry plane and axis of the running cable, and are arranged in a substantially symmetric manner with respect to said plane.
  • the clamping force of said jaws on the running cable is provided by two distinct elastic systems, each acting on one of said jaws, arranged in a substantially symmetric manner with respect to said plane of symmetry.
  • each elastic system is articulated in the lower point 74 with the fixed structure 76, and with the jaw 71 in the upper point 73; in the jaw 71, the driving arm of the elastic system 75 with respect to the lower pin 72 is much greater than that of the running cable 11, and therefore the clamping force between the jaws and the cable is much greater than the force generated by the same elastic system.
  • the articulation between the jaws 71 and the fixed structure 76 occurs through the pins 72 and a certain number of auxiliary horizontal connecting rods 77 which receive part of the horizontal reaction of the clamping force, and compensate it between the jaws 71 without affecting the fixed structure 76; moreover, the connecting rods increase the number of cut sections which affect the pins 72, permitting the reduction of the diameter and thus size of the vice below the running cable 11.
  • FIG 7 an embodiment is shown of the present invention in which between the two jaws 71 there is a gear tooth 713 which obliges the jaws to always move symmetrically, even in the presence of an asymmetric load of the two elastic systems 75, for example due to the yielding of a spring.
  • the figure shows a gear tooth with bidirectional functioning; according to an alternative of the invention, not shown in the figures, the single bidirectional gear tooth is substituted by two unidirectional contact surfaces, placed on both sides of the jaw, adjacent to the two ends of the pins 72, made such to activate one contact surface or the other according to the direction of the stress imbalance.
  • Figure 8 shows a variant of the invention, in which the elastic system 75 is connected to the pin 73 of the jaw 71 with the interposition of an intermediate kinematic mechanism capable of resolving the force provided by the elastic system 75 by optimising the variation of the clamping force on the cable 11 as a function of the jaw rotation.
  • the component of the elastic force which does not affect the jaw is discharged on the fixed structure 76.
  • a first resolution system illustrated in the left part of the figure, is obtained with an upper pin 717, in which two connecting rods 714 and 715 converge which connect the elastic system 75 respectively at the jaw 71 through the pin 73 and the fixed body 76 through the pin 716.
  • a second resolution system illustrated in the right part of the figure, is obtained by substituting the connecting rod 715 with a surface of sliding or rolling by direct contact 718, which accomplishes the same function of the connecting rod; other systems, not represented in the figure, can instead foresee the use of sliding or rolling surfaces in place of the connecting rod 714, or at the place of both connecting rods.
  • the elastic system 75 is composed of two systems of helical springs 751 and 752 arranged symmetrically on both sides of each jaw 71.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
EP20060077159 2005-12-06 2006-12-29 Pince débrayable pour porteurs d'une installation automatique de transport à câble Active EP1832490B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20052336 ITMI20052336A1 (it) 2005-12-06 2005-12-06 Morsa speciale per impianto funiviario dotato di due funi portanti e una fune traente
ITMI20060069 ITMI20060069A1 (it) 2006-01-18 2006-01-18 Carrello per impianto funiviario automatico dotato di 2 funi portanti e una fune traente

Publications (3)

Publication Number Publication Date
EP1832490A2 true EP1832490A2 (fr) 2007-09-12
EP1832490A3 EP1832490A3 (fr) 2008-10-08
EP1832490B1 EP1832490B1 (fr) 2011-05-18

Family

ID=38316693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060077159 Active EP1832490B1 (fr) 2005-12-06 2006-12-29 Pince débrayable pour porteurs d'une installation automatique de transport à câble

Country Status (1)

Country Link
EP (1) EP1832490B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2935945A1 (fr) * 2008-09-16 2010-03-19 Pomagalski Sa Installation de telepherique.
IT201700093739A1 (it) * 2017-08-22 2019-02-22 Ferruccio Levi Funivia bifune automatica con doppia fune portante e singola fune traente, di tipo semplificato
CN110588671A (zh) * 2018-06-12 2019-12-20 莱特纳股份公司 用于支撑悬挂在运输系统的导向装置上的运输单元的台车以及包括这样的台车的运输系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2119894A1 (fr) 1970-12-31 1972-08-11 Laurent Roger
EP0283888A2 (fr) 1987-03-25 1988-09-28 Von Roll Transportsysteme AG Installation de téléphérage
EP1227022A2 (fr) 2001-01-29 2002-07-31 High Technology Investments B.V. Téléphérique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131718B (de) * 1962-06-20 Pohlig Ag J Klemmvorrichtung zur seitlichen Aufnahme des Zugseiles, insbesondere fuer Umlaufseilbahnen
CH396073A (de) * 1962-02-14 1965-07-31 Schwermaschinenbau Verlade Und Kuppelapparat für Einseilbahnen
FR2356544A1 (fr) * 1976-06-28 1978-01-27 Laurent Roger Dispositif d'accouplement pour une installation de transport bicable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2119894A1 (fr) 1970-12-31 1972-08-11 Laurent Roger
EP0283888A2 (fr) 1987-03-25 1988-09-28 Von Roll Transportsysteme AG Installation de téléphérage
EP1227022A2 (fr) 2001-01-29 2002-07-31 High Technology Investments B.V. Téléphérique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2935945A1 (fr) * 2008-09-16 2010-03-19 Pomagalski Sa Installation de telepherique.
IT201700093739A1 (it) * 2017-08-22 2019-02-22 Ferruccio Levi Funivia bifune automatica con doppia fune portante e singola fune traente, di tipo semplificato
CN110588671A (zh) * 2018-06-12 2019-12-20 莱特纳股份公司 用于支撑悬挂在运输系统的导向装置上的运输单元的台车以及包括这样的台车的运输系统
CN110588671B (zh) * 2018-06-12 2024-04-05 莱特纳股份公司 用于支撑悬挂在运输系统的导向装置上的运输单元的台车以及包括这样的台车的运输系统

Also Published As

Publication number Publication date
EP1832490B1 (fr) 2011-05-18
EP1832490A3 (fr) 2008-10-08

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