EP1255667A1 - Remonte-pente portatif - Google Patents

Remonte-pente portatif

Info

Publication number
EP1255667A1
EP1255667A1 EP01908495A EP01908495A EP1255667A1 EP 1255667 A1 EP1255667 A1 EP 1255667A1 EP 01908495 A EP01908495 A EP 01908495A EP 01908495 A EP01908495 A EP 01908495A EP 1255667 A1 EP1255667 A1 EP 1255667A1
Authority
EP
European Patent Office
Prior art keywords
rope
ski
winch
cable drum
main
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Withdrawn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
EP01908495A
Other languages
German (de)
English (en)
Inventor
Dean Te Wera Thomas
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.)
Te Huruhuru Properties Ltd
Original Assignee
Te Huruhuru Properties Ltd
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 Te Huruhuru Properties Ltd filed Critical Te Huruhuru Properties Ltd
Publication of EP1255667A1 publication Critical patent/EP1255667A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B11/00—Ski lift, sleigh lift or like trackless systems with guided towing cables only
    • B61B11/002—Ski lift, sleigh lift or like trackless systems with guided towing cables only able to be dismantled or removed

Definitions

  • Ski tows for assisting skiers up ski slopes are well known
  • Known ski tows consist essentially of an endless rope loop between a fixed driving station and a fixed slave station
  • the rope passes around a rope drive pulley driven by a winch of the driving station and passes also around a slave pulley of the slave station
  • the driving station and the slave station are appropriately positioned to maintain a desired tension on the endless rope loop
  • the driving station is located at the bottom of the ski run and the slave station is located at the top of the run
  • Both the slave wheel and the winch must be very securely located at a predetermined position so as to maintain adequate tension on the ski rope and to maintain the winch and the slave wheel braced against any movement out of the desired location
  • a ski tow is a comparatively large installation and the manner in which the winch and the slave wheel are located means that once fixed in the desired location, it is rare for the apparatus to be moved to another location
  • United States Patent Specification 5205219 discloses another form of portable ski tow rope mechanism which consists in a mechanism for supporting the extreme ends of an endless loop of a ski tow rope. A series of pulleys are utilised to guide the tow rope about an elongated enclosed path. A motor driven winch is located so the tow rope will pass through the winch at a location which is within the ski rope path and displaced from either extreme end. The winch includes a pinch wheel to ensure the ski rope passes around at least 180° of the circumference of the drive wheel.
  • United States Patent Specification 3739728 discloses a portable winch for a ski tow.
  • a tow rope for the skiers serves also as a control link to enable the winch to be actuated to wind up the cable under power or release the cable.
  • the winch is able to pull itself to the top of the ski run and when anchored, skiers can grasp the rope and be pulled to the top of the hill.
  • the rope can be pulled in a downhill direction either by a weight or it can be pulled downwards by a skier.
  • US Patent application 3874303 includes an endless belt supported by intermediate rollers and by end rollers.
  • the belt includes conveyor means which are resiliently connected to the belt so that skiers can hold the conveyor means between their knees or by their hands to enable the skiers to be pulled up the hill.
  • ski tow rope mechanisms as exemplified in the prior art referred to above are described as 'portable 1 , they are not in fact portable or if they are portable are of insufficient size to make them practical as a viable alternative to fixed ski tow installations.
  • a further disadvantage with known forms of portable ski tow rope mechanisms is that they can generally only be located where a clear run for both the upward and downward legs of the loop of the ski rope can be obtained. This severely restricts the locations and the manner in which the mechanisms can be used.
  • one form of the invention may be said to comprise a portable ski tow mechanism including a first winch having
  • drive means to rotate a cable drum to wind a main ski rope onto the drum, clutch means to connect or to disconnect the drum to the drive means
  • the construction and arrangement being that the winch is adapted to be transported
  • the main ski rope is wound onto the cable drum
  • the clutch is operated to disconnect the drum from the drive means, and the main ski rope is withdrawn from the cable drum by transporting the free end of
  • the clutch is engaged to commence rewinding of the ski rope onto the cable drum to haul the skier or skiers up the ski slope.
  • the winch includes guide means to guide the ski rope onto the drum and brake means to enable rotation of the drum to be retarded when the drum is disconnected
  • the mechanism includes a second winch adapted to be anchored adjacent an end of the ski run, said second winch including
  • clutch means to connect or to disconnect the drum to the drive means, means to initiate operation of the second winch to wind the auxiliary ski rope onto the drum of the second winch and means to disconnect the drum from the drive means to enable the auxiliary ski rope to be withdrawn from the drum
  • the construction and arrangement being that the first and second winches are adapted to be utilised in unison by attaching the free end of the main ski rope to the free end of the auxiliary rope to thereby couple the two winches together and by operating the two winches in a manner that as the main ski rope is being withdrawn from the cable drum of one winch, the auxiliary rope is being wound onto the cable drum of the second winch.
  • the first winch is located adjacent a first end of the ski run
  • the second said winch is located adjacent a second end of the ski run
  • the clutch means of a winch is disengaged to disconnect the cable drum from the drive means
  • the free end of the rope is withdrawn from the disengaged cable drum and transported to the second winch and is connected to the free end of the rope of the second winch
  • the drum of the second winch is disconnected from the drive means and the clutch means of the first winch is engaged to commence re- winding of the rope onto the cable drum and to withdraw the rope from the drum of the second winch.
  • the ski tow mechanism includes a single winch is located adjacent the top of the intended ski run, and in operation the free end of the main ski rope is manually transported to the desired location on the ski run to thereby withdraw the main ski rope from the cable drum and the winch is activated to rewind the main ski rope onto the cable drum to enable the main ski rope to be utilised to haul a skier or skiers up the ski run.
  • the method of operating a ski tow including two winches comprises locating the first winch having a cable drum on which the main ski rope is wound adjacent the top of the intended ski run and locating the second winch having a cable drum on which the auxiliary rope is wound adjacent the bottom of the ski run and releasing the clutch means of one of the winches and withdrawing the rope from the cable drum until it can be connected to the free end of the rope on the cable drum of the second of the two winches and activating the winch having the cable drum to which the main ski rope is connected to wind the main ski rope onto the cable drum and to withdraw the auxiliary ski rope from the cable drum of the second winch.
  • At least one of the winches is controlled remotely.
  • the remote control is by an electronic signal.
  • the first and second winches are situate adjacent each other at one end of the ski run, and the rope is withdrawn from the cable drum of one winch and is passed around pulley means situate at the second end of a ski run and the free end of the rope from the first winch is joined to the free end of the rope from the second winch, the winches being operated so the first winch having the cable drum on which the main ski rope is wound is utilised to haul a skier or skiers up the ski slope and the second winch having the cable drum on which the auxiliary rope is wound is utilised to withdraw the main ski rope from the cable drum of the first winch.
  • the first and second winches are under the control of a single operator.
  • first and second winches share the same motive power.
  • the motive power comprises an engine driving a hydraulic pump and wherein hydraulic lines connect the hydraulic pump to a hydraulic motor for the cable drum of the first winch and to the cable drum of the second winch.
  • Figure 1 is a schematic elevational drawing of one side of a first winch mechanism for the main ski rope.
  • Figure 2 is a schematic elevational drawing of the second side of the winch mechanism illustrated in Figure 1.
  • Figure 3 is a schematic elevational illustration of the front of the winch mechanism
  • Figure 4 is a schematic view of a highly preferred form of the invention utilising a second winch.
  • the apparatus includes a winch mechanism one form of which has a frame 1 to house a rotary power means
  • the engine which may be an internal combustion engine 2.
  • the engine is coupled either to a gear train or chain drive or in a highly preferred form to a hydraulic pump 3.
  • the pump is in turn coupled
  • a hydraulic motor 5 which drives a cable drum 6 through a suitable clutch mechanism 7.
  • the clutch is designed so that when it is released, the cable drum 6 can freely rotate with a minimum of frictional resistance.
  • the cable drum is provided with braking means such as a disc brake 8.
  • the cable drum is of a width and diameter that a considerable length of main ski rope 9 can be wound onto the drum.
  • a suitable rope is formed of polypropylene or other tough
  • the length of the rope 9 will vary as required but preferably the rope
  • the cable drum should have a length of up to 1.5 kilometres and the cable drum must therefore be of a size that such a length of rope can be fully wound onto the drum.
  • the mechanism preferably also includes a known type of cable feeder 10 which can be suitably driven such as by a chain drive 11 from the cable drum.
  • Suitable lifting handles or the like are also provided so that the unit can be transported.
  • the winch mechanism is
  • the mechanism To use the mechanism, it is first transported, such as by ground transport or by a flying machine such as a helicopter to a suitable location where it is firmly secured in
  • the method of this is for a skier to take the rope and ski to the remote location.
  • the free end of the rope can be attached to a harness which can be worn by the skier.
  • the free end of the main ski rope can be transported will preferably be up to 1.5 kilometres, depending upon the length of the rope and the topography of the country.
  • the skier can then disengage if desired from the ski rope and intending skiers can grasp the ski
  • a signal is then sent to the operator to activate the winch to commence winding the main ski rope which will haul the skiers up the ski run.
  • the second operator can if desired grasp also be hauled to the top of the ski run.
  • the signaling to the operator of the first winch can be effected by any known means such as by direct sight, by radio telephony or whatever suitable means it is decided to use.
  • the apparatus preferably also includes a second winch 20 which is of a size that it is highly portable.
  • the ancillary winch includes a drive means to drive a cable drum on which an ancillary rope 21 is wound.
  • the ancillary rope 21 is
  • the second winch will be stationed at or near the bottom of the ski slope or run.
  • the free end of the main ski rope is permanently or temporarily joined to the free end of the auxiliary rope.
  • One means of effecting this comprises the steps of anchoring the
  • first and second winches in position, drawing the main ski rope from the cable drum of the first winch down the ski slope, for instance by a skier or skiers to the location of the second winch.
  • the second winch will already have the auxiliary rope 21 wound onto the cable drum
  • Such attachment can be by a simple knot or by other mechanical means as is known in the art.
  • the second winch is then configured to free the cable drum and the first winch activated to draw the main tow rope up the ski run together with the skiers. Since the auxiliary rope 21
  • the second winch can be either manually controlled or remotely controlled. If it is not
  • the second winch is to be remotely operated, it will not require an operator. Instead all the required functions can be initiated or completed remotely under the control of the operator of the first winch.
  • Such remote control can be by electrical or electronic signals
  • the first and second winches can be situate at one
  • both winch can be under the
  • a pulley means is first anchored adjacent the top of the ski run and the free ends of either or both the main ski rope and the auxiliary ski rope can be transported from the winches to the pulley where one rope is passed around the pulley
  • winches are set so that as the main ski rope is being wound onto the cable drum of the first winch, the auxiliary rope will be withdrawn from the cable drum of the second winch. It will
  • main ski rope is utilised to haul the skiers up the ski slope and the
  • auxiliary rope will be utilised to return the main ski rope back to its start position. While it is
  • one of the winches be smaller than the other and to have an auxiliary rope
  • both winches can have independent motor drive means, inn the configuration where the first and second winch are situate close together, it can be convenient
  • the secondary hydraulic lines cann be connected to the second winch
  • ski tow rope mechanism of the present invention is very portable and does not require complicated anchoring system for the winch or winches.
  • the system also eliminates any problem of having to
  • main ski rope and/or auxiliary rope can be transported by a skier or other means to a location whereby the free end of the two ropes can be joined.
  • the first and second winches can then be released from the anchoring means and transported to the new location where they can be anchored and so ready for operation.
  • a portable ski tow mechanism including a first winch having
  • drive means to rotate a cable drum to wind a main ski rope onto the drum, clutch means to connect or to disconnect the drum to the drive means
  • the winch is adapted to be transported to and anchored adjacent one end of the intended ski slope
  • the main ski rope is wound onto the cable drum
  • the clutch is operated to disconnect the drum from the drive means
  • the main ski rope is withdrawn from the cable drum by transporting the free end of the rope to a distant location whereupon a skier or skiers can grasp the ski rope
  • the clutch is engaged to commence rewinding of the ski rope onto the cable drum to haul the skier or skiers up the ski slope.
  • ski tow mechanism as claimed in claim 1, including a second winch adapted to be anchored adjacent an end of the ski run, said second winch including drive means to rotate a cable drum to wind an auxiliary ski rope onto the drum,
  • first and second winches are adapted to be utilised in unison by attaching the free end of the main ski rope to the free end of the auxiliary rope to thereby couple the two winches together and by operating the two winches in a manner that as the main ski rope is being withdrawn from the cable drum of one winch,
  • the auxiliary rope is being wound onto the cable drum of the second winch.
  • the clutch means of the first winch is engaged to commence re- winding of the rope onto the cable drum and to withdraw the rope from the drum of the second winch.
  • a single winch is located adjacent the top of the intended ski run, the clutch means of the winch is released the free end of the main ski rope is manually transported to the desired location on the ski run to thereby withdraw the main ski rope from the cable drum and
  • the winch is activated to rewind the main ski rope onto the cable drum to enable the main ski rope to be utilised to haul a skier or skiers up the ski run.
  • the winch having a cable drum on which the main ski rope is wound is located adjacent the top of the intended ski run and the second winch having a cable drum on which the auxiliary rope is

Abstract

L'invention concerne un mécanisme de remonte-pente portatif doté d'un premier treuil (1) placé en position adjacente par rapport à l'une des extrémités de la piste. La corde à ski principale (9) est enroulée sur un enrouleur de câble du premier treuil.(1). La corde (9) peut être partiellement retenue et l'extrémité libre amenée jusqu'à un lieu distant. On fait pivoter l'enrouleur de câble de manière à enrouler la corde à ski (9) sur cet enrouleur de câble et à entraîner les skieurs au sommet de la piste. Dans une autre combinaison, un second treuil (20) est utilisé. Le second treuil (20) est doté d'un enrouleur de câble sur lequel une corde auxiliaire (21) est enroulée. L'extrémité libre de la corde auxiliaire (21) est liée (22) à l'extrémité libre de la corde à ski principale (9) et la corde auxiliaire (21) est enroulée sur l'enrouleur de câble du second treuil (20) afin de retenir la corde à ski principale (9) du premier treuil (1). Les deux treuils (1, 20) peuvent être disposés à la même extrémité de la piste ou aux deux extrémités opposées de la piste.
EP01908495A 2000-02-07 2001-02-07 Remonte-pente portatif Withdrawn EP1255667A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ50273300 2000-02-07
NZ50273300 2000-02-07
PCT/NZ2001/000015 WO2001056855A1 (fr) 2000-02-07 2001-02-07 Remonte-pente portatif

Publications (1)

Publication Number Publication Date
EP1255667A1 true EP1255667A1 (fr) 2002-11-13

Family

ID=19927735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01908495A Withdrawn EP1255667A1 (fr) 2000-02-07 2001-02-07 Remonte-pente portatif

Country Status (7)

Country Link
US (1) US20030047107A1 (fr)
EP (1) EP1255667A1 (fr)
JP (1) JP2003521430A (fr)
CN (1) CN1398232A (fr)
AU (1) AU3623701A (fr)
CA (1) CA2398809A1 (fr)
WO (1) WO2001056855A1 (fr)

Families Citing this family (7)

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US20080083363A1 (en) * 2006-10-06 2008-04-10 Hart L Adam Human towing device and sports based on the device
US8590828B2 (en) 2010-02-24 2013-11-26 Robert Marcus Rotocraft
US9987506B2 (en) * 2010-12-15 2018-06-05 Robert Marcus UAV—or personal flying device—delivered deployable descent device
US8511234B2 (en) 2011-06-08 2013-08-20 Leonard Nelson Snow sled towing device
US9573665B2 (en) * 2012-05-15 2017-02-21 Everett Ogden DC motor tow winch
WO2015189820A1 (fr) 2014-06-12 2015-12-17 Aramburo Ernesto Treuil pour sports nautiques et autres applications
EP3911550A4 (fr) 2019-01-15 2022-10-05 Towpro Lifts, LLC Ensemble filneige portable

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Also Published As

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AU3623701A (en) 2001-08-14
WO2001056855A1 (fr) 2001-08-09
CA2398809A1 (fr) 2001-08-09
US20030047107A1 (en) 2003-03-13
CN1398232A (zh) 2003-02-19
JP2003521430A (ja) 2003-07-15

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