CN1398232A - Portable-pente ski tow - Google Patents
Portable-pente ski tow Download PDFInfo
- Publication number
- CN1398232A CN1398232A CN01804612.6A CN01804612A CN1398232A CN 1398232 A CN1398232 A CN 1398232A CN 01804612 A CN01804612 A CN 01804612A CN 1398232 A CN1398232 A CN 1398232A
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- Prior art keywords
- capstan winch
- ski
- rope
- cable drum
- cable
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- 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
Abstract
A portable ski tow mechanism utilizing a first winch (1) positioned adjacent one end of the ski run. The main ski rope (9) is wound onto a cable drum of the first winch (1). The rope (9) can be partly withdrawn and the free end transported to a remote location. The cable drum is rotated to wind the ski rope (9) onto the cable drum and to pull the skiers up the ski slope. In a modification, a second winch (20) is utilised. The second winch (20) has a cable drum on which an auxiliary rope (21) is wound. The free end of the auxiliary rope (21) is joined (22) to the free end of the main ski rope (9) and the auxiliary rope (21) is wound onto the cable drum of the second winch (20) to withdrawn the main ski rope (9) from the first winch (1). The two winches (1, 20) can be located at the same end of the ski run or at the opposite ends of the ski run.
Description
Technical field
The skiing drag-line that is used to help the slider to climb up snowbank is known in the art.Existing skiing drag-line is that a closed loop cable between the slave station constitutes by supporting at a fixed drive station and fixedly basically.Cable is walked around from a follow-up pulley of a cable drive pulley and slave station, and drive pulley wherein is that capstan winch by driving station drives.The position of driving station and slave station is configured to suitable distance, has desirable tension force to keep the closed loop cable.General situation is (but being not like this all the time): driving station is positioned at the bottom of sloping course, and slave station is positioned at the top in ramp.Be that flower wheel or capstan winch all must be positioned on the preposition very securely, thereby can make ski rope have enough tensile forces, go back rest simultaneously and capstan winch and flower wheel, they can not moved from desirable position location.
Skiing drag-line normally relatively large facility, and after the positioning form of capstan winch and flower wheel means that also in a single day package unit is fixed on the desired location, just seldom can move to other position.
Background technology
In order to solve above-mentioned this defective, provide a kind of portable ski tow installation in the prior art.In US Patent specification the 4023502nd (patentee is Elsing), disclose a kind of such ski tow installation, this drag-line equipment has one first portable frame assemblies and one second portable frame assemblies, the first portable frame assemblies has a power operated cable wheel, and the second portable frame assemblies then is that the loopback pulley for cable is provided with.Two frame assemblies all have these two assemblies are anchored on ground device.
Another kind of portable-pente ski tow is disclosed in US Patent specification the 4920892nd (patentee is Pesek), this patent documentation discloses a kind of portable skiing drag-line unit, and this unit is made up of a upper station and a next backhaul station.Upper station has a driver element, and it has a drive pulley that is driven by motor and severally is used to guide tow rope to walk around the guide pulley of drive pulley.Rope return station is positioned at the bottom of sloping course, and has an idler pulley, and this idler pulley is being guided tow rope.Article two, cable is continuous closed loop, and this closed loop cable is around between drive pulley and the idler pulley, and the slider can grip the cable of upwards operation and go up the top, slope.The disclosed content of this document mainly is to guarantee that at a kind of cable can walk around the device of drive pulley in the capstan winch well.
Disclose the light skiing tow rope machinery of another kind of form in the US Patent specification 5205219 (franchise is in Groskreutz), this machinery is characterised in that to have such mechanism: this mechanism is used to support the terminal part of a closed loop skiing tow rope.And adopted one group of pulley guiding the closed path of tow rope around a lengthwise.A capstan winch that is driven by motor is configured to like this: tow rope is in the middle of the path of ski rope through the position of this capstan winch, and apart from two terminal parts of turning back of cable certain distance is arranged.Capstan winch comprises a contact roller, and it is used to guarantee that the coiling radian of ski rope on the drive wheel girth is at least 180 degree.
A kind of portable capstan winch that is used in the ski tow installation is disclosed in the US Patent specification 3739728.A tow rope that is provided with for the slider is simultaneously also as the control link, to start capstan winch cable wound up with power or discharges hawser.Capstan winch can be moved himself to the top of ski trail, and when it was lived by anchoring, then the slider can catch cable and be pulled to the top, slope.Can utilize the weight of cable self and cable direction under the mountain is drawn, also can cable be taken under the mountain by the slider.
A closed loop band that is being supported by middle roller and end rollers is disclosed in the U.S. Patent application 3874303.Have feedway on this band, these feedways flexibly are connected on the band, thereby make the slider this feedway can be clipped between two knees or with the hands grasping, and are pulled to the top, slope therefrom.
Although above these typical case's skiing tow rope machineries of the prior art are called as " portable ", but they are actually not light, even or they are light, but their undersize is so that they become the feasible program that substitutes the fixed type ski tow installation in actual applications.Another shortcoming of existing light ski tow mechanism is: they can only be arranged on some position usually, and on these positions, the ascending branch section of ski rope ring and descending section all have spacious stroke passage.This will seriously limit place and mode that this type of machinery can be used.
Summary of the invention
Thereby, the objective of the invention is, a kind of portable skiing tow rope machinery of modified version is provided, it does not need to adopt the tow rope of closed loop, and should only need the work of hoot just can move another position from certain position by machinery, this machinery also be applicable to the tow rope that length is very long.
Correspondingly, a kind of form of implementation of the present invention then can deserve to be called and comprise a portable ski tow mechanism, and this machinery has one first capstan winch, and this capstan winch comprises:
Actuating device, it is used to rotate a cable drum, main ski rope is wound up on this reel;
Clutch equipment, it is used to make reel to be connected or to separate disengagement with actuating device;
Structure and arrange it is such: make capstan winch be suitable for being transported to the adjacent position of predetermined sloping course one termination, and be anchored at this end near;
Main ski rope is winding on the cable drum;
Operated clutch is to throw off reel and actuating device; And
By moving the free end of main ski rope the position of a distant place to and cable being extracted out from cable drum, can make one or more sliders catch this ski rope thus;
Make clutch engagement, begin ski rope is wound up on the cable drum, one or more sliders are pulled on top, skiing slope.
Capstan winch preferably has guiding device and brake equipment, is used to guide ski rope to be wound up into reel, and can apply the slow effect of resistance to the rotation of reel when reel and actuating device disengagement.
Said machinery preferably includes one second capstan winch, and it is suitable for anchoring on the close position of ski trail one end, and said second capstan winch comprises:
Actuating device is used to rotate a cable drum, so that an auxiliary ski rope is wound up on this reel;
Clutch equipment is used for said reel is connected or throws off with actuating device;
In order to starting the device of the second capstan winch work, thereby will assist ski rope to be wound up on the reel of second capstan winch; And
The device that reel and actuating device are thrown off makes auxiliary ski rope be pulled out from reel thus,
Structure and arrange it is such: two capstan winches are linked together thereby be connected to by free end on the free end of auxiliary ski rope with main ski rope; And by operating this two capstan winches by this way: main ski rope is pulled out by the cable drum from one of them capstan winch, guest rope then is winding on the cable drum of second capstan winch, just can be so that first, second capstan winch is suitable for co-operation.
First capstan winch preferably is positioned near first end of ski trail, and said second capstan winch then is positioned near second end of ski trail, and at work, the clutch equipment of one of them capstan winch is separated to be opened, so that cable drum and actuating device disengagement,
The free end of cable is pulled out from the cable drum that separates disengagement, and is pulled to second capstan winch, and is connected on the free end of cable on second capstan winch;
The reel of second capstan winch is thrown off with actuating device, and
The clutch equipment of first capstan winch is closed, thus beginning once more with the cable spooling to cable drum, and pull out cable from the reel of second capstan winch.
Said ski tow mechanism preferably includes only a capstan winch, and it is arranged near the top of predetermined ski trail, and at work:
The free end of main ski rope is manually delivered to certain desirable position in the ski trail, thus main ski rope extracted out from cable drum, and
Start capstan winch main ski rope is wound up on the cable drum again, thereby can utilize main ski rope that one or more sliders are moved on the top, slope of ski trail.
The method that is used to operate the ski tow installation with two capstan winches preferably includes following step: said first capstan winch is arranged in the position at contiguous predetermined ski trail top, and it has a cable drum, and main ski rope is wound on this reel; Position in contiguous ski trail bottom is provided with second capstan winch, and it has a cable drum, and guest rope is wound on this reel; The clutch equipment that separates one of them capstan winch, and cable pulled out from cable drum, till making cable can be connected to the free end of the cable on another capstan winch cable drum; Start the capstan winch that has connected main ski rope on that cable drum, so that main ski rope is wound up on this cable drum, and will assist ski rope to pull out from second capstan winch.
Preferably at least one capstan winch is remote-controlled.
Said remote control is preferably carried out by electronic signal.
First, second capstan winch is preferably being arranged at an end position place of ski trail mutually contiguously, and cable is pulled out by the cable drum from one of them capstan winch, and walk around the pulley gear that is arranged in ski trail second end, the free end of the cable of extracting out from first capstan winch is connected on the free end of the cable of pulling out from second capstan winch, two capstan winches are operated like this: make reeling on the cable drum first capstan winch of main ski rope be used to one or more sliders are pulled on sloping course, second capstan winch of the guest rope of reeling on its cable drum then is used to main ski rope pull from the cable drum of first capstan winch is come out.
First, second capstan winch is preferably controlled by same operating personal.
First, second capstan winch is preferably by same drive power source.
Said propulsion source preferably includes a driving engine, and this engine drive a Hydraulic Pump, and to have many hydraulic power lines to connect Hydraulic Pump to one be the HM Hydraulic Motor that the cable drum of the cable drum of first capstan winch and second capstan winch is provided with.
Description of drawings
Fig. 1 is a schematic front elevation, and it has represented a construction profile for the first capstan winch machinery of main ski rope setting;
Fig. 2 is a schematic front elevation, and it has represented the another side of capstan winch machinery shown in Figure 1;
Fig. 3 is a schematic front elevation, and it has represented the Facad structure of capstan winch machinery shown in Fig. 1,2;
Fig. 4 is a scheme drawing, and it has represented to use among the present invention a kind of highly preferred form of second capstan winch.
The specific embodiment
As Fig. 1 in the accompanying drawing, 2 and shown in Figure 3, equipment comprises a capstan winch machinery, and a kind of form of implementation of this capstan winch machinery is to have a framework 1, and it can be a combustion engine 2 that a rotating type power device one this device has been installed in this framework.Driving engine or be coupled to a gear transmission and fasten, or be coupled on the chain drive mechanism, or be connected to like that on the Hydraulic Pump 3 according to highly preferred form.And Hydraulic Pump connects to a HM Hydraulic Motor 5 by hydraulic power line 4 conversely, and this motor is driving a cable drum 6 by suitable clutch mechanism 7.This power-transfer clutch is designed to like this: when it separated, the friction drag that cable drum 6 is subjected to can freely rotate for minimum.Preferably also be provided with on the cable drum such as pan brake 8 brake equipments such as grade.
The width of cable drum and diameter are designed to allow quite long main ski rope 9 to be winding on this reel.A kind of suitable cable is to make with polypropylene or other tough and tensile non-degradable material, and the intensity of these materials is enough to the load in competent this applied environment.Have been found that: the polypropylene cable that diameter is no more than 6mm can be mentioned the weight up to 1.5 tons, so although the cable of other loading and size also can be used in the required applied environment, above-mentioned cable is suitable for task herein.The length of cable 9 can be according to concrete needs and different, but the length of cable preferably can reach 1.5 kilometers, thereby the size of cable drum must guarantee that the cable of so growing can be wound up on this reel fully.In order to help the most efficiently cable to be wound up on the cable drum, what capstan winch mechanically preferably also had a known forms send cable device 10, and this send the cable device being driven suitably by cable drum by chain gear machinery 11.
Also be provided with suitable lifting handle or allied equipment (not shown), thereby be convenient to the transportation of this unit.In a kind of preferred form, capstan winch machinery is manufactured into and can be walked by the autogyro lifting, thereby it can simply easily be transported to another place from a place.
In order to use this drag-line machinery, at first to it be transported to certain suitable place by flying instruments such as vehicle or helicopters, point place at this point, machinery is securely fixed on the end of sloping course or near it with suitable anchoring piece, and anchoring piece wherein is for example for avenging anchor and pile anchoring.The suitable cable 9 of the length of having reeled on cable drum declutches then, thereby makes cable drum free to rotate.Afterwards, the free end of main ski rope 9 just can be booked and pull to a certain position in a distant place.This draws a kind of method of delivering to a distant place grabbing cable by the slider and slides into said remote location and realize.In a kind of variations, the free end of cable can be connected on the back of the body helmet that a slider wears on one's body.The length that the main ski rope free end can be drawn out preferably can reach 1.5 kilometers, and particular case depends on the length of cable and topographic condition on every side.The slider just can unclamp ski rope as required then, and other will use the slider of this cable just can grip this cable at that time or subsequently according to the wish of oneself.Send a signal with the startup capstan winch to the operator afterwards, thereby begin the main ski rope of reeling, this main ski rope then upwards draws the slider on ski trail.If necessary, second operating personal also can grabbed this cable and be pulled to the top, slope of ski trail.
The process that sends signal to the operator of first capstan winch can be to implement with any known device, for example by direct visual means or by wireless call, or any appropriate device of utilizing other decision to adopt.
As shown in Figure 4, this equipment preferably also comprises one second capstan winch 20, and the size of this capstan winch is the height lighting.This auxiliary capstan comprises an actuating device that is used to drive a cable drum, the guest rope 21 of having reeled on this cable drum.The length of guest rope 21 preferably can be isometric with main ski rope at least, but its structure is then comparatively light-duty.In a kind of method of work, second capstan winch is fixed on bottom or contiguous this bottom of skiing slope or ski trail.In this pattern, the free end of main ski rope forever or provisionally is attached on the free end of guest rope.A kind of method of carrying out this process comprises step: with first, second capstan winch anchoring location; For example the cable drum of main ski rope from first capstan winch pulled out, and the slope that pulls to sloping course arrives down the position at the second capstan winch place by one or more sliders.May reel on the cable drum of second capstan winch and go up guest rope 21, the termination of main ski rope 9 is connected on the free end of auxiliary ski rope then.Can realize the connection of these two cables by simple knotting or other mechanical means as known in the art.Then, second capstan winch is configured to make its cable drum freely to rotate, and first capstan winch then is activated, and so just main ski rope has been moved together to the top, slope of ski trail together with the slider.Because guest rope 21 is connected on the main ski rope 9, so be winding to along with main ski rope 9 on the cable drum of first capstan winch, guest rope can be pulled out by the reel from second capstan winch.
Second capstan winch or manual control, or remote operated.If it is manual, then must be equipped with an operating personal for this capstan winch.In this operation mode, when the main ski rope 9 that Len req is arranged is winding on the reel of first capstan winch, the reel of main capstan winch can be released, and send signal to the operator of second capstan winch by known device, make it can start second capstan winch, sending set wherein for example is the device of phone, wireless call device or other routine of the linear formula of ground communications.This just begins guest rope is wound up on the reel of second capstan winch, thereby main ski rope is pulled down once more to the end, slope, till the cable of pulling out sufficient length from cable drum.The operator disconnects the cable drum institute bonded assembly actuating device of second capstan winch then, so that it can freely rotate, start the work of first capstan winch simultaneously, begin main ski rope is wound up on the reel of first capstan winch, so just begun the slider is dragged the circulation again on top, ski trail slope.
If second capstan winch by remote operated, has not then just needed to be equipped with an operating personal.But all being remote control that start under the first winch-operated personnel's control or complete, all essential functions carry out.Such remote control can be carried out by sending electric signal or electronic signal, and the device that wherein sends signal can be with radio communication or ground communications circuit, also can utilize other device as known in the art.
In another operation mode, first, second capstan winch is disposed in the same end of ski trail-be preferably lower end.In this pattern, two capstan winches are all by same operator's direct control.In order to carry out such setting, at first will be at pulley gear of position anchoring near the ski trail top, and main ski rope and/or auxiliary ski rope are moved to pulley from two capstan winches, at the pulley place, a cable is wherein walked around pulley, and the free end of two cables is connected on together.In order to use such setting in this pattern, two capstan winches are configured to like this: be winding to along with main ski rope on the cable drum of first capstan winch, guest rope will be pulled out by the cable drum from second capstan winch.Be understood that main ski rope is used to the slider is pulled on the top, slope, guest rope then is used for main ski rope is withdrawn into its initial mode of operation.Thereby although two capstan winches can be repacked into the ski rope of coiling same model can utilize ski rope up and down two strands alternately the slider is pulled on slope top, but one of them capstan winch had better be designed to less than another capstan winch, and the guest rope on it is lighter than the grade of main ski rope, thereby the slider is seizing main ski rope to be pulled on top, ski trail slope.
Although in a kind of form of implementation, two capstan winches are to have independently Power Drive Unit, and under the close mutually layout situation in the position of first and second capstan winches, it is very easily that two machines adopt same set of propulsion source.For example, if the engine drive of one of them capstan winch a Hydraulic Pump, then available secondary hydraulic power line connects this Hydraulic Pump provides power to second capstan winch.
The major advantage of ski tow mechanism of the present invention is that this machinery is very light, and does not need for capstan winch (one or more) complicated anchor system to be set.Any problem that can be complementary and bring with the concrete length of closed loop ski rope owing to all machinery all being arranged to has also been eliminated by system of the present invention, thereby machinery of the present invention is applicable to any distance within the extreme length, on the cable drum that is meant one of them capstan winch under the situation that only adopts a capstan winch, can the reel extreme length of cable of extreme length wherein, under the situation that adopts two capstan winches, be meant the cable length overall of on two cable drums, reeling.
If adopted single capstan winch, then the free end of main ski rope normally will be delivered to remote location by the slider.If used two capstan winches, then the free end of main ski rope and/or guest rope is to deliver to a position with slider or other device band, and the free end of two cables is connected on together on this position.Thereby, need the slider after having slided, again main ski rope to be drawn into the slope essentiality at the end because second capstan winch has been eliminated at every turn, and have special synergism.In addition, if the distance of ski trail is quite long, then for without any the slider who helps, it will be difficult under the snowbank that cable is moved to, thereby, increase by one second slider again and the second capstan winch cooperating just can be finished this work like a cork.If the consideration for some reason does not need to be provided with second capstan winch, then as long as take off guest rope just passable from main ski rope simply.
Because this capstan winch machinery is independently to provide for oneself fully, in the time of so this equipment will being moved on to a new place, that must do just separates main ski rope and guest rope (if having adopted second capstan winch), and main ski rope 9 is wound up on the cable drum.Then first, second capstan winch and anchor fitting are separated, and be transported to new place, on new place, they are lived by anchoring, so that restart work.
Preferred form of the present invention is above disclosed, but obviously: can make the change and the variation of various ways to implementing concrete equipment of the present invention and method, and these changes and changing still in basic concept scope of the present invention.These all variations all should be contained by protection scope of the present invention.
Claims (12)
1. portable ski tow mechanism, it comprises one first capstan winch, described first capstan winch has:
Actuating device, it is used to rotate a cable drum, so that a main ski rope is wound up on this reel;
Clutch equipment, it is used to make reel to be connected with actuating device or separates,
Structure and layout are such: make that capstan winch is suitable for being transported near the end of predetermined sloping course, and be anchored near the position of this end;
Main ski rope is winding on the cable drum;
Operated clutch is to throw off reel and actuating device; And
By moving the free end of main ski rope certain position of a distant place to cable is extracted out from cable drum, can be made one or more sliders grip ski rope thus;
Make clutch engagement, begin ski rope is wound up on the cable drum, thereby one or more sliders are pulled on top, skiing slope.
2. portable ski tow mechanism according to claim 1, it is characterized in that also comprising: guiding device and brake equipment, described guiding device is used to guide ski rope to be wound up into reel, and described brake equipment is used for applying the slow effect of resistance when throwing off to the rotation of described reel when described reel separates with described actuating device.
3. portable ski tow mechanism according to claim 1 is characterized in that also comprising one second capstan winch, and it is suitable for anchoring on the position of contiguous ski trail one end, and described second capstan winch comprises:
Actuating device, it is used to rotate a cable drum, so that an auxiliary ski rope is wound up on the described reel;
Clutch equipment, it is used for described reel being connected with described actuating device or separating;
In order to start the device of the described second capstan winch work, be used for described auxiliary ski rope is wound up on the reel of described second capstan winch; And
The device that described reel and described actuating device are thrown off, so that described auxiliary ski rope is pulled out from described reel,
Its structure and layout are such: be connected to by the free end with described main ski rope on the free end of described auxiliary ski rope, thereby two capstan winches are linked together, and by operating this two capstan winches by this way: when described main ski rope is extracted out from the cable drum of a capstan winch, described guest rope then is winding on the cable drum of second capstan winch, makes first, second capstan winch be suitable for common use.
4. one kind is carried out method of operating to the described ski tow mechanism of claim 3, it is characterized in that:
Described first capstan winch is positioned near first end of ski trail, and described second capstan winch then is positioned near second end of ski trail;
The clutch equipment of one of them capstan winch is separated to be opened, so that described cable drum and described actuating device are thrown off;
The free end of described cable pulls out from the cable drum of having separated, and is pulled to described second capstan winch, and is connected on the free end of cable of described second capstan winch;
The reel and the described actuating device of described second capstan winch are thrown off; And
The clutch equipment of described first capstan winch is closed, thus beginning once more with described cable spooling to described cable drum, and pull out described cable from the reel of described second capstan winch.
5. one kind is carried out method of operating to the described ski tow mechanism of claim 1, it is characterized in that:
Near the top, slope of predetermined ski trail, a single capstan winch is set;
Separate the power-transfer clutch of described capstan winch;
The free end of described main ski rope is manually led delivers to certain desirable position in the ski trail, thus described main ski rope is extracted out from described cable drum; And
Start described capstan winch described main ski rope is wound up on the described cable drum again, thereby can utilize described main ski rope that one or more sliders are pulled on the top, slope of ski trail.
6. one kind is carried out method of operating to the described ski tow mechanism of claim 3, it is characterized in that, described first capstan winch is arranged in position at contiguous predetermined ski trail top, described first capstan winch has a cable drum, described main ski rope just is wound on the described reel, and the position in contiguous ski trail bottom is provided with second capstan winch, and it has a cable drum, and described guest rope is wound on this reel; Separate the clutch equipment of one of them capstan winch, and described cable is pulled out from described cable drum, till making cable can be connected to the free end of the cable on second the cable drum in two capstan winches; Start described capstan winch, so that main ski rope is wound up on the described cable drum, and described auxiliary ski rope is pulled out from second capstan winch with the cable drum that links to each other with main ski rope.
7. ski tow mechanism according to claim 3 is characterized in that: at least one capstan winch is by remote operated.
8. ski tow mechanism according to claim 7 is characterized in that: said remote control is carried out by electronic signal.
9. ski tow mechanism according to claim 3, it is characterized in that: first, second capstan winch is positioned at an end of ski trail mutually with adjoining, and described cable is pulled out from the cable drum of one of them capstan winch, and walk around the pulley gear that is positioned at ski trail second end, the free end of the cable of pulling out from first capstan winch is connected on the free end of the cable of pulling out from second capstan winch; And two capstan winch operated like this: make described have by reel first capstan winch of the cable drum on it of main ski rope be used to one or more sliders are pulled on sloping course, and described have by reel second capstan winch of the cable drum on it of guest rope be used to described main ski rope pull from the cable drum of first capstan winch is come out.
10. ski tow mechanism according to claim 9 is characterized in that: first, second capstan winch is controlled by same operating personal.
11. ski tow mechanism according to claim 9 is characterized in that: the shared same propulsion source of first, second capstan winch.
12. ski tow mechanism according to claim 11 is characterized in that: described propulsion source comprises a driving engine, and described engine drive a Hydraulic Pump; And many hydraulic power lines connect Hydraulic Pump the HM Hydraulic Motor that is provided with to the cable drum that is the cable drum of first capstan winch and second capstan winch.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ50273300 | 2000-02-07 | ||
| NZ502733 | 2000-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1398232A true CN1398232A (en) | 2003-02-19 |
Family
ID=19927735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01804612.6A Pending CN1398232A (en) | 2000-02-07 | 2001-02-07 | Portable-pente ski tow |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20030047107A1 (en) |
| EP (1) | EP1255667A1 (en) |
| JP (1) | JP2003521430A (en) |
| CN (1) | CN1398232A (en) |
| AU (1) | AU3623701A (en) |
| CA (1) | CA2398809A1 (en) |
| WO (1) | WO2001056855A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US10377391B2 (en) | 2014-06-12 | 2019-08-13 | Ernesto Aramburo | Winch for water sports and other uses |
| WO2020150198A1 (en) * | 2019-01-15 | 2020-07-23 | Towpro Lifts, LLC | Portable tow rope assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3739728A (en) | 1970-07-31 | 1973-06-19 | J Thompson | Portable ski tow and method of operating same |
| NO131059C (en) | 1971-11-29 | 1975-04-09 | Kjell Andren | |
| US4023502A (en) | 1975-10-02 | 1977-05-17 | John William Elsing | Portable ski tow apparatus |
| DE2703833A1 (en) * | 1977-01-31 | 1978-08-03 | Schwarzkopf Stahl Fahrzeugbau | ENTERTAINMENT TRACK WITH A LOOPING |
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-
2001
- 2001-02-07 US US10/203,157 patent/US20030047107A1/en not_active Abandoned
- 2001-02-07 JP JP2001556720A patent/JP2003521430A/en not_active Withdrawn
- 2001-02-07 WO PCT/NZ2001/000015 patent/WO2001056855A1/en active IP Right Grant
- 2001-02-07 EP EP01908495A patent/EP1255667A1/en not_active Withdrawn
- 2001-02-07 CA CA002398809A patent/CA2398809A1/en not_active Abandoned
- 2001-02-07 CN CN01804612.6A patent/CN1398232A/en active Pending
- 2001-02-07 AU AU36237/01A patent/AU3623701A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2398809A1 (en) | 2001-08-09 |
| AU3623701A (en) | 2001-08-14 |
| EP1255667A1 (en) | 2002-11-13 |
| US20030047107A1 (en) | 2003-03-13 |
| JP2003521430A (en) | 2003-07-15 |
| WO2001056855A1 (en) | 2001-08-09 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |