EP0456588A1 - Aufstiegshilfe für kleine Fahrzeuge vom Typ Schlitten - Google Patents

Aufstiegshilfe für kleine Fahrzeuge vom Typ Schlitten Download PDF

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Publication number
EP0456588A1
EP0456588A1 EP91420146A EP91420146A EP0456588A1 EP 0456588 A1 EP0456588 A1 EP 0456588A1 EP 91420146 A EP91420146 A EP 91420146A EP 91420146 A EP91420146 A EP 91420146A EP 0456588 A1 EP0456588 A1 EP 0456588A1
Authority
EP
European Patent Office
Prior art keywords
sledge
track
clamp
jaws
cable
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Withdrawn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
EP91420146A
Other languages
English (en)
French (fr)
Inventor
Christian Bertrand
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.)
Les Plastiques De Bourgogne A Responsabilite Ltee Ste
Original Assignee
Les Plastiques De Bourgogne A Responsabilite Ltee Ste
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 Les Plastiques De Bourgogne A Responsabilite Ltee Ste filed Critical Les Plastiques De Bourgogne A Responsabilite Ltee Ste
Publication of EP0456588A1 publication Critical patent/EP0456588A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B9/00—Tramway or funicular systems with rigid track and cable traction
    • 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
    • B61B11/004—Means connecting load and cable
    • B61B11/008—Means connecting load and cable the load being a sleigh

Definitions

  • the present invention relates to a mechanical lift device for small vehicles, of the sledge or roller type, which run on a track with a concave transverse profile.
  • this invention relates to leisure facilities, particularly intended for winter sports resorts but usable during the summer season, facilities in which light single-seater vehicles having the appearance of sleds descend under the effect of gravity along adapted artificial slopes, of more or less steep slope.
  • the present invention aims to provide such a device, particularly simple, rational and safe, in which the traction means of the sleds for their ascent are directly incorporated into the track, which makes it possible to get rid of any other ski lift installation.
  • each sledge has a clamp which automatically grasps a drive cable when this sledge is at the bottom of the ascending part of the track, and which also separates automatically from the cable when the same sledge arrives at the top of the ascending part of the track, the sled being then released and being able to slide or roll on the descending part of the track, to return to its lower starting point where it can again be dragged by the cable to the top of the track, the ascending and descending parts of the track together forming a closed circuit.
  • the ascending strand of the drive cable is advantageously located in the median plane of the ascending track part, at a relatively short distance from the bottom of this track part, while the traction clamp of each sledge is fixed under this sled and is intended to open from its lower part.
  • the return, descending strand of the drive cable preferably passes under the descending or ascending track portion. Pulleys are provided, in suitable number and arrangement, for positioning, guiding and driving said cable.
  • the traction clamp of each sledge has two symmetrical jaws articulated by their apex to a common support plate fixed under the sledge, the simultaneous pivoting of the two jaws towards the rear accompanied by their spacing, while spring means are provided to return the two jaws forward while causing them to tighten.
  • This effect can be obtained in particular by arranging the respective axes of articulation of the two jaws on the support plate in directions forming one with the other at an angle.
  • the return means can be constituted by a single spring, one end of which is attached to the support plate and the other end of which is linked to a stirrup which couples the two jaws.
  • the control means for closing and opening this clamp consist, according to another aspect of the invention, by at least one first fixed ramp provided at the bottom of the ascending track part, and cooperating with the lower ends of the two jaws to cause them to pivot backwards and to separate them, before releasing them so that they tighten on the traction cable under the effect of the spring of reminder, as well as by at least a second fixed ramp provided towards the top of the ascending track part and also cooperating with the lower ends of the two jaws to again cause them to pivot backwards and their spacing, so as to unhook the cable clamp.
  • the second ramp is formed on an already slightly descending track portion, so as to facilitate the stall, and it is provided that at the height of this second ramp the drive cable is erased under said track pressure.
  • the device ensures self-tightening of the tension clamps on the cable, during the entire ascending path of the sleds, the clamping of the jaws on the cable being all the more energetic that the slope is steeper and that the weight of the user, seated on the sledge, is higher.
  • FIG. 1 shows a track for small vehicles of the toboggan type, and more particularly the ascending part of track 1, used for the ascent of the sledges reached at the bottom of the descending track part, not shown here, the ascending and descending track parts together forming a closed circuit.
  • the track 1 has a concave transverse profile, with a bottom 2 of very open "V" profile, and flanks 3 raised, in the manner of a chute.
  • each small vehicle 4 more simply called “sledge” comprises two pairs of rollers 5, respectively a front pair and a rear pair, by which it rests and rolls on the lane 1, in a known manner which will not be described here in more detail.
  • each sledge 4 Under its front part, each sledge 4 carries a traction clamp 6, designed to temporarily hang on an endless drive cable 7.
  • the drive cable 7 follows the track and it includes, in particular, an ascending strand which is present over the entire length of the ascending track part 1; the ascending strand of the cable 7, guided by pulleys 8, is located in the median plane of the track part 1, and it flows at a relatively small distance from the bottom 2 of the track.
  • the cable 7 can pass under the track or follow any other path, and motorized means (not shown) are also provided for driving this cable 7, in the direction indicated by a arrow F, at a chosen speed of, for example, between 0.4 meters / second and 2 meters / second.
  • the traction clamp 6 has two symmetrical jaws 9, articulated by their apex, around respective axes 10, to a common support plate 11 which is itself fixed under the bottom of the sledge 4.
  • the two jaws 9 are generally turned downwards, each jaw 9 having towards its lower free end a groove 12 of semicircular section, located opposite the corresponding groove of the other jaw.
  • the respective articulation axes 10 of the two jaws 9 each form an angle A with respect to the transverse direction of the sledge 4, so that the directions of these two axes 10 form, with each other, an angle 2A - see Figure 6.
  • the two jaws 9 pivot backwards while rising, they move away from each other simultaneously which corresponds to the opening of the traction clamp 6.
  • the two jaws 9 pivot forward, they tighten simultaneously which corresponds to the closure of the traction clamp 6.
  • the two jaws 9 are recalled in the advanced position of closing of the clamp by a helical spring 13, working in traction.
  • One end of the return spring 13 is attached to the support plate 11 by means of a small ring 14; the other end of the spring 13 is linked to a stirrup 15 which couples the two jaws 9. It should be noted that in the advanced closed position, the two jaws 9 tightened with the clamp 6 are inclined forward, the direction longitudinal of these jaws 9 forming an angle B relative to a direction perpendicular to the support plate 11.
  • the ramps 16 and 17 are arranged so as to be on the path of the jaws 9 belonging to the sleds 4 which circulate on the track 1.
  • Each sledge 4 is thus driven upwards, by the cable 7, while rolling on the part of ascending track 1, and this up to the top of this part of track 1.
  • the longitudinal profile of the track forms a rounded shape and there is thus a portion of track 18 already slightly descending, for example with a slope of the order of 10 °, on which is formed the second ramp 17 which causes the opening of the traction clamps 6, still by action on the jaws 9.
  • the sledge 4 no longer exerts traction on the jaws 9 of its clamp 6 when it reaches this portion of track 18.
  • the sledge 4 begins to descend by gravity and its speed exceeds that of the cable 7.
  • the opening of the clamp 6 is practically without resistance, only the limited force of the return spring 13 still to be overcome.
  • the clamp 6 When opening, the clamp 6 releases the sledge 4 from the traction cable 7, which disappears under the portion of track 18 at the height of the second ramp 17. Once the second ramp 17 has passed, the clamp 6 is closed by to its return spring 13.
  • the sledge 4 can then descend by gravity to the bottom of the descending part of the track, which is its normal use, kinetic retarders acting on its rear pair of rollers 5 during the descent. Once at the foot of the track, the sledge 4 again meets the first ramp 16 which opens its clamp 6, and this clamp 6 closes again on the drive cable 7 which reappears under said first ramp 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
EP91420146A 1990-05-10 1991-05-02 Aufstiegshilfe für kleine Fahrzeuge vom Typ Schlitten Withdrawn EP0456588A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9006487 1990-05-10
FR9006487A FR2661880B1 (fr) 1990-05-10 1990-05-10 Dispositif de remontee mecanique pour petits vehicules, du genre luges.

Publications (1)

Publication Number Publication Date
EP0456588A1 true EP0456588A1 (de) 1991-11-13

Family

ID=9396915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420146A Withdrawn EP0456588A1 (de) 1990-05-10 1991-05-02 Aufstiegshilfe für kleine Fahrzeuge vom Typ Schlitten

Country Status (3)

Country Link
EP (1) EP0456588A1 (de)
JP (1) JPH0623150A (de)
FR (1) FR2661880B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1346756A1 (de) * 2001-07-23 2003-09-24 Josef Ermer Verfahren zum gerichteten Abgleiten oder Abfahren von Hanggelände
US10723368B2 (en) 2015-10-19 2020-07-28 Innova Patent Gmbh Clamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942452A (en) * 1969-10-03 1976-03-09 Alpine Valley Resort, Inc. Ski lift
EP0130897A2 (de) * 1983-06-24 1985-01-09 Les Plastiques de Bourgogne Société à Responsabilité Limitée: Vorrichtung zum mechanischen Anheben von kleinen Fahrzeugen
DE2760186C2 (de) * 1977-08-16 1985-06-13 Josef 6419 Rasdorf Wiegand Geländerutschbahn mit Rollschlitten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942452A (en) * 1969-10-03 1976-03-09 Alpine Valley Resort, Inc. Ski lift
DE2760186C2 (de) * 1977-08-16 1985-06-13 Josef 6419 Rasdorf Wiegand Geländerutschbahn mit Rollschlitten
EP0130897A2 (de) * 1983-06-24 1985-01-09 Les Plastiques de Bourgogne Société à Responsabilité Limitée: Vorrichtung zum mechanischen Anheben von kleinen Fahrzeugen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1346756A1 (de) * 2001-07-23 2003-09-24 Josef Ermer Verfahren zum gerichteten Abgleiten oder Abfahren von Hanggelände
US10723368B2 (en) 2015-10-19 2020-07-28 Innova Patent Gmbh Clamp

Also Published As

Publication number Publication date
FR2661880A1 (fr) 1991-11-15
JPH0623150A (ja) 1994-02-01
FR2661880B1 (fr) 1992-08-07

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