EP1491417A1 - Safety device for preventing the cable of a transportation system from derailing - Google Patents

Safety device for preventing the cable of a transportation system from derailing Download PDF

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Publication number
EP1491417A1
EP1491417A1 EP03405460A EP03405460A EP1491417A1 EP 1491417 A1 EP1491417 A1 EP 1491417A1 EP 03405460 A EP03405460 A EP 03405460A EP 03405460 A EP03405460 A EP 03405460A EP 1491417 A1 EP1491417 A1 EP 1491417A1
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EP
European Patent Office
Prior art keywords
retaining elements
lateral retaining
cable
polygonal section
shaft
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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.)
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EP03405460A
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German (de)
French (fr)
Inventor
Daniel Vuille
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Individual
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Individual
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Priority to EP03405460A priority Critical patent/EP1491417A1/en
Publication of EP1491417A1 publication Critical patent/EP1491417A1/en
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    • 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
    • B61B12/06—Safety devices or measures against cable fracture

Definitions

  • the present invention relates to a safety device, intended to prevent a cable of a transport system with drive and suspension by cable comprising at least one transport device connected by means of fixing to said cable, from leaving laterally from less a guide and suspension pulley, comprising lateral retaining elements, integral with a shaft pivotally mounted on a frame for moving, when said fixing means meet one of said lateral retaining elements, around the longitudinal axis of said shaft between two limit positions, in which said lateral retaining elements are brought alternately in a lateral position to the path of said cable and elastic return means for exerting on said lateral retaining elements a force constantly tending to bring them back into one of said limit equilibrium positions.
  • the object of the present invention is to remedy, at least in part, these drawbacks, so as to make its operation smoother, by reducing the accelerations of the safety device, thus making it less noisy, also making it possible to use means of simpler and more effective elastic recall.
  • This device also makes it possible to manufacture the lateral retaining elements simpler and cheaper while improving their mechanical strength.
  • the present invention relates to a security device according to claim 1.
  • FIG. 1 illustrates the safety device 1 according to the present invention associated with a yoke of pulleys 2, carrying two pairs of guide pulleys 3, only one of which is shown in this figure, as well as a traction and / or suspension 4, to which is attached a fixing member 5 of a transport device (not shown).
  • This transport device can be of any type with cable drive and suspension, such as a ski lift, a cable car, a cable car, which is driven by cable 4 in the direction of arrow F.
  • the safety device 1 comprises two lateral retaining elements 6a, 6b secured to a shaft 7 pivotally mounted in a horizontal part 8a of a support in the form of a bracket 8.
  • the two ends 7a, 7b of the pivot shaft 7 have respective polygonal sections, in this example, substantially square.
  • the end 7b is engaged in a complementary opening of a tubular connecting member 9 of the lateral retaining elements 6a, 6b.
  • the end 7a of the pivot shaft is engaged in a tubular portion 10a of section having a shape complementary to the elastic return means 10.
  • These elastic return means are formed by at least this tubular portion in which the end is engaged 7a of the pivot shaft.
  • This tubular portion 10a is engaged in a second tubular portion of polygonal section 10b secured to the support 8, having the same number of sides as the polygonal section the end 7a of the pivot shaft 7.
  • the angles of the polygonal section of the tubular portion 10a secured to the pivot shaft 7 are adjacent to the middle of the sides of the second tubular portion of polygonal section 10b secured to the support 8.
  • Elements of elastic compressible material 11 arranged in the four spaces formed between the two tubular portions 10a, 10b of polygonal section, constitute elastic return means constantly tending to maintain the two tubular portions 10a, 10b in the position illustrated by Figures 1 and 2, which corresponds to the limit equilibrium position of the safety device.
  • this elastic return device 10 allows a limited angular displacement of the pivot shaft 7, which must in no case exceed 40 °, preferably 30 °.
  • the retaining element 6a which is called upon to come into contact with the fixing member 5 has for this purpose a front edge 6c which forms an angle of approximately 30 ° with the direction F of the path of the cable 4. in the position limit of equilibrium illustrated by FIG. 1, the lower edge 6d of the second lateral retaining element 6b is itself substantially parallel to this path of the cable 4.
  • the rear edge 6e of the lateral retaining element 6a has a reverse symmetrical inclination to that of the front edge 6c, to allow the controlled return of the lateral retaining elements 6a, 6b after the passage of the fixing member 5 of the transport device.
  • the small angle between the front edge 6c and the path of the cable 4 very significantly reduces the acceleration communicated to the lateral retaining elements 6a, 6b and therefore makes the safety device much less noisy.
  • FIG. 3 illustrates a preferred embodiment of the lateral retaining elements 6a, 6b intended to obtain an optimum resistance to deformation weight ratio.
  • these lateral retaining elements 6a, 6b constitute a single hollow part formed by two identical stainless steel plates 6F and 6G which each have slots 6H.
  • These two plates 6F, 6G are joined by a series of spacers 6I whose edges have assembly tabs 6J positioned and dimensioned so as to be able to penetrate into the slots 6H of the plates 6F, 6G, after which they are folded back to fix the plates 6F, 6G to each other.
  • some of the spacers which come into contact with the fixing member 5 of the transport device are covered with 6K plastic pads, intended to absorb shock, as well as friction .
  • 6k pads in Teflon® or coated with this material or an equivalent material are suitable in this case.
  • the hollow design of the lateral retaining elements 6a, 6b makes the device lighter, improves the rigidity of the lateral retaining elements 6a, 6b and reduces the manufacturing cost of these lateral retaining elements.

Abstract

The device has lateral retention units (6a, 6b) integrated with a shaft mounted pivotally in a horizontal part of a support (8). The retention units move around longitudinal axis of the shaft between two limit positions during joining of transport devices fixation units (5) with the retention units. An elastic returning unit limits angle between the limit positions such that angle is lower than 40 degrees.

Description

La présente invention se rapporte à un dispositif de sécurité, destiné à empêcher un câble d'un système de transport à entraînement et suspension par câble comprenant au moins un dispositif de transport relié par des moyens de fixation audit câble, de sortir latéralement d'au moins une poulie de guidage et de suspension, comportant des éléments de retenue latérale, solidaires d'un arbre monté pivotant sur un bâti pour se déplacer, lors de la rencontre desdits moyens de fixation avec un desdits éléments de retenue latérale, autour de l'axe longitudinal dudit arbre entre deux positions limites, dans lesquelles lesdits éléments de retenue latérale sont amenés alternativement dans une position latérale à la trajectoire dudit câble et des moyens de rappel élastiques pour exercer sur lesdits éléments de retenue latérale une force tendant constamment à les ramener dans l'une desdites positions limites d'équilibre.The present invention relates to a safety device, intended to prevent a cable of a transport system with drive and suspension by cable comprising at least one transport device connected by means of fixing to said cable, from leaving laterally from less a guide and suspension pulley, comprising lateral retaining elements, integral with a shaft pivotally mounted on a frame for moving, when said fixing means meet one of said lateral retaining elements, around the longitudinal axis of said shaft between two limit positions, in which said lateral retaining elements are brought alternately in a lateral position to the path of said cable and elastic return means for exerting on said lateral retaining elements a force constantly tending to bring them back into one of said limit equilibrium positions.

Un tel dispositif a déjà été proposé dans le WO 02/051684. Bien que ce dispositif réponde aux conditions de sécurités requises, il présente certains inconvénients, aussi bien du point de vue de son fonctionnement qu'en ce qui concerne la résistance mécanique et les coûts de fabrication.Such a device has already been proposed in WO 02/051684. Although this device meets the required safety conditions, it has certain drawbacks, both from the point of view of its operation and with regard to mechanical strength and manufacturing costs.

Le but de la présente invention est de remédier, au moins en partie à ces inconvénients, de manière à rendre son fonctionnement plus doux, en diminuant les accélérations du dispositif de sécurité, le rendant ainsi moins bruyant, permettant également d'utiliser des moyens de rappel élastiques plus simples et plus efficaces. Ce dispositif permet aussi de rendre la fabrication des éléments de retenue latérale plus simple et moins chère tout en améliorant leur résistance mécanique.The object of the present invention is to remedy, at least in part, these drawbacks, so as to make its operation smoother, by reducing the accelerations of the safety device, thus making it less noisy, also making it possible to use means of simpler and more effective elastic recall. This device also makes it possible to manufacture the lateral retaining elements simpler and cheaper while improving their mechanical strength.

A cet effet, la présente invention a pour objet un dispositif de sécurité selon la revendication 1.To this end, the present invention relates to a security device according to claim 1.

Le dessin annexé illustre, schématiquement et à titre d'exemple, une forme d'exécution du dispositif de sécurité objet de la présente invention.

  • La figure 1 est une vue en élévation de ce dispositif;
  • la figure 2 est une vue en perspective éclatée du dispositif illustré par la figure 1;
  • la figure 3 est une vue en perspective éclatée des éléments de retenue latérale illustré par les figures précédentes;
  • la figure 4 est une vue en perspective du dispositif vu du côté opposé à la figure 1 lorsque les éléments de retenue latérale sont déplacés de leur position limite d'équilibre.
The appended drawing illustrates, schematically and by way of example, an embodiment of the security device which is the subject of the present invention.
  • Figure 1 is an elevational view of this device;
  • Figure 2 is an exploded perspective view of the device illustrated in Figure 1;
  • FIG. 3 is an exploded perspective view of the lateral retaining elements illustrated by the preceding figures;
  • Figure 4 is a perspective view of the device seen from the side opposite to Figure 1 when the lateral retaining elements are moved from their limit equilibrium position.

La figure 1 illustre le dispositif de sécurité 1 selon la présente invention associé à une chape de poulies 2, portant deux paires de poulies de guidage 3, dont une seule est représentée sur cette figure, ainsi qu'un câble de traction et/ou de suspension 4, auquel est accroché un organe de fixation 5 d'un dispositif de transport (non représenté). Ce dispositif de transport peut être de n'importe quel type à entraînement et à suspension par câble, tel qu'un remonte-pente, une télécabine, un téléphérique, qui est entraîné par le câble 4 dans le sens de la flèche F.FIG. 1 illustrates the safety device 1 according to the present invention associated with a yoke of pulleys 2, carrying two pairs of guide pulleys 3, only one of which is shown in this figure, as well as a traction and / or suspension 4, to which is attached a fixing member 5 of a transport device (not shown). This transport device can be of any type with cable drive and suspension, such as a ski lift, a cable car, a cable car, which is driven by cable 4 in the direction of arrow F.

Comme illustré par les figures 1 et 2, le dispositif de sécurité 1 selon l'invention comporte deux éléments de retenue latérale 6a, 6b solidaires d'un arbre 7 monté pivotant dans une partie horizontale 8a d'un support en forme de potence 8. Les deux extrémités 7a, 7b de l'arbre de pivotement 7 ont des sections respectives polygonales, dans cet exemple, sensiblement carrées. L'extrémité 7b est engagée dans une ouverture complémentaire d'un organe de liaison tubulaire 9 des éléments de retenue latérale 6a, 6b. L'extrémité 7a de l'arbre de pivotement est engagée dans une portion tubulaire 10a de section ayant une forme complémentaire des moyens de rappel élastique 10. Ces moyens de rappel élastiques sont formés par au moins cette portion tubulaire dans laquelle est engagée l'extrémité 7a de l'arbre de pivotement. Cette portion tubulaire 10a est engagée dans une seconde portion tubulaire de section polygonale 10b solidaire du support 8, présentant le même nombre de côtés que la section polygonale l'extrémité 7a de arbre de pivotement 7. Les angles de la section polygonale de la portion tubulaire 10a solidaire de l'arbre de pivotement 7 sont adjacents aux milieux des côtés de la seconde portion tubulaire de section polygonale 10b solidaire du support 8. Des éléments en matériau compressible élastique 11 disposés dans les quatre espaces ménagés entre les deux portions tubulaires 10a, 10b de section polygonale, constituent des moyens de rappel élastiques tendant constamment à maintenir les deux portions tubulaires 10a, 10b dans la position illustrée par les figures 1 et 2, qui correspond à la position limite d'équilibre du dispositif de sécurité.As illustrated by FIGS. 1 and 2, the safety device 1 according to the invention comprises two lateral retaining elements 6a, 6b secured to a shaft 7 pivotally mounted in a horizontal part 8a of a support in the form of a bracket 8. The two ends 7a, 7b of the pivot shaft 7 have respective polygonal sections, in this example, substantially square. The end 7b is engaged in a complementary opening of a tubular connecting member 9 of the lateral retaining elements 6a, 6b. The end 7a of the pivot shaft is engaged in a tubular portion 10a of section having a shape complementary to the elastic return means 10. These elastic return means are formed by at least this tubular portion in which the end is engaged 7a of the pivot shaft. This tubular portion 10a is engaged in a second tubular portion of polygonal section 10b secured to the support 8, having the same number of sides as the polygonal section the end 7a of the pivot shaft 7. The angles of the polygonal section of the tubular portion 10a secured to the pivot shaft 7 are adjacent to the middle of the sides of the second tubular portion of polygonal section 10b secured to the support 8. Elements of elastic compressible material 11 arranged in the four spaces formed between the two tubular portions 10a, 10b of polygonal section, constitute elastic return means constantly tending to maintain the two tubular portions 10a, 10b in the position illustrated by Figures 1 and 2, which corresponds to the limit equilibrium position of the safety device.

Pour pouvoir utiliser le dispositif de rappel élastique 10, il est nécessaire de limiter le déplacement angulaire des deux éléments de retenue latérale 6a, 6b lors du passage de l'organe de fixation 5 du dispositif de transport sur le poulies de guidage 3. En effet, ce dispositif de rappel élastique 10 permet un déplacement angulaire limité de l'arbre de pivotement 7, qui ne doit en aucun cas excéder 40°, de préférence 30°. L'élément de retenue 6a qui est appelé à entrer en contact avec l'organe de fixation 5 présente à cet effet un bord avant 6c qui forme un angle d'environ 30° avec la direction F de la trajectoire du câble 4. dans la position limite d'équilibre illustrée par la figure 1, le bord inférieur 6d du second élément de retenue latérale 6b est lui sensiblement parallèle à cette trajectoire du câble 4. Le bord arrière 6e de l'élément de retenue latéral 6a présente une inclinaison symétrique inverse à celle du bord avant 6c, pour permettre le retour contrôlé des éléments de retenue latérale 6a, 6b après le passage de l'organe de fixation 5 du dispositif de transport.To be able to use the elastic return device 10, it is necessary to limit the angular displacement of the two lateral retaining elements 6a, 6b during the passage of the fixing member 5 of the transport device over the guide pulleys 3. Indeed , this elastic return device 10 allows a limited angular displacement of the pivot shaft 7, which must in no case exceed 40 °, preferably 30 °. The retaining element 6a which is called upon to come into contact with the fixing member 5 has for this purpose a front edge 6c which forms an angle of approximately 30 ° with the direction F of the path of the cable 4. in the position limit of equilibrium illustrated by FIG. 1, the lower edge 6d of the second lateral retaining element 6b is itself substantially parallel to this path of the cable 4. The rear edge 6e of the lateral retaining element 6a has a reverse symmetrical inclination to that of the front edge 6c, to allow the controlled return of the lateral retaining elements 6a, 6b after the passage of the fixing member 5 of the transport device.

Outre le fait que l'angle de pivotement des éléments de retenue latérale 6a, 6b du dispositif de sécurité est limité en raison des moyens de rappel élastiques 10, le faible angle entre le bord avant 6c et la trajectoire du câble 4 réduit très sensiblement l'accélération communiquée aux éléments de retenue latérale 6a, 6b et donc permet de rendre le dispositif de sécurité beaucoup moins bruyant.In addition to the fact that the pivoting angle of the lateral retaining elements 6a, 6b of the safety device is limited due to the elastic return means 10, the small angle between the front edge 6c and the path of the cable 4 very significantly reduces the acceleration communicated to the lateral retaining elements 6a, 6b and therefore makes the safety device much less noisy.

La figure 3 illustre une forme de réalisation préférée des éléments de retenues latérales 6a, 6b destinée à obtenir un rapport poids résistance à la déformation optimum. A cet effet, ces éléments de retenue latérale 6a, 6b constituent une seul pièce creuse formée par deux plaques d'acier inoxydable identiques 6F et 6G qui présentent chacune des fentes 6H. Ces deux plaques 6F, 6G sont réunies par une série d'entretoises 6I dont les bords présentent des languettes d'assemblage 6J positionnées et dimensionnées pour pouvoir pénétrer dans les fentes 6H des plaques 6F, 6G, après quoi elles sont repliées pour fixer les plaques 6F, 6G l'une à l'autre.FIG. 3 illustrates a preferred embodiment of the lateral retaining elements 6a, 6b intended to obtain an optimum resistance to deformation weight ratio. To this end, these lateral retaining elements 6a, 6b constitute a single hollow part formed by two identical stainless steel plates 6F and 6G which each have slots 6H. These two plates 6F, 6G are joined by a series of spacers 6I whose edges have assembly tabs 6J positioned and dimensioned so as to be able to penetrate into the slots 6H of the plates 6F, 6G, after which they are folded back to fix the plates 6F, 6G to each other.

Pour réduire encore le niveau sonore du fonctionnement du dispositif de sécurité, certaines des entretoises qui entrent en contact avec l'organe de fixation 5 du dispositif de transport sont recouvertes de patins en matière plastique 6K, destinés à amortir le choc, ainsi que le frottement. Des patins 6k en Teflon® ou revêtus de cette matière ou d'un matière équivalente sont appropriés dans ce cas.To further reduce the noise level of the operation of the safety device, some of the spacers which come into contact with the fixing member 5 of the transport device are covered with 6K plastic pads, intended to absorb shock, as well as friction . 6k pads in Teflon® or coated with this material or an equivalent material are suitable in this case.

La conception creuse des éléments de retenue latérale 6a, 6b d'alléger le dispositif, d'améliorer la rigidité des éléments de retenue latérale 6a, 6b et de réduire le coût de fabrication de ces éléments de retenue latérale.The hollow design of the lateral retaining elements 6a, 6b makes the device lighter, improves the rigidity of the lateral retaining elements 6a, 6b and reduces the manufacturing cost of these lateral retaining elements.

Claims (5)

Dispositif de sécurité, destiné à empêcher un câble d'un système de transport à entraînement et suspension par câble comprenant au moins un dispositif de transport relié par des moyens de fixation (5) audit câble (4), de sortir latéralement d'au moins une poulie de guidage et de suspension (3), comportant des éléments de retenue latérale (6a, 6b), solidaires d'un arbre (7) monté pivotant sur un support (8) pour se déplacer, lors de la rencontre desdits moyens de fixation (5) avec un desdits éléments de retenue latérale (6a, 6b), autour de l'axe longitudinal dudit arbre (7) entre deux positions limites, dans lesquelles lesdits éléments de retenue latérale (6a, 6b) sont amenés alternativement dans une position latérale à la trajectoire dudit câble (4) et des moyens de rappel élastiques (10) pour exercer sur lesdits éléments de retenue latérale (6a, 6b) une force tendant constamment à les ramener dans l'une desdites positions limites d'équilibre, caractérisé en ce que lesdits éléments de retenue latérale (6a, 6b) sont conformés pour que l'angle entre lesdites positions limites soit inférieur à 40°.Safety device, intended to prevent a cable from a cable-driven and suspended transport system comprising at least one transport device connected by fixing means (5) to said cable (4), from leaving laterally at least a guide and suspension pulley (3), comprising lateral retaining elements (6a, 6b), integral with a shaft (7) pivotally mounted on a support (8) to move, when meeting said means of fixing (5) with one of said lateral retaining elements (6a, 6b), around the longitudinal axis of said shaft (7) between two limit positions, in which said lateral retaining elements (6a, 6b) are brought alternately into a lateral position in the path of said cable (4) and elastic return means (10) for exerting on said lateral retaining elements (6a, 6b) a force constantly tending to bring them back into one of said limit equilibrium positions, charac rised in that said lateral retaining elements (6a, 6b) are shaped so that the angle between said limit positions is less than 40 °. Dispositif selon la revendication 1, dans lequel chacun desdits éléments de retenue latérale (6a, 6b) comporte deux plaques homologues parallèles (6F, 6G), reliées l'une à l'autre par des entretoises de fixation (6I).Device according to claim 1, in which each of said lateral retaining elements (6a, 6b) comprises two parallel homologous plates (6F, 6G), connected to each other by fixing spacers (6I). Dispositif selon la revendication 1, dans lequel deux plaques homologues parallèles (6F, 6G) reliées l'une à l'autre par des entretoises de fixation (6I) forment lesdits éléments de retenue latérale (6a, 6b) et sont traversées par ledit arbre de pivotement (7).Device according to claim 1, in which two parallel homologous plates (6F, 6G) connected to each other by fixing spacers (6I) form said lateral retaining elements (6a, 6b) and are crossed by said shaft pivot (7). Dispositif selon l'une des revendication précédentes, dans lequel lesdits moyens de rappel élastiques (10) sont formés par au moins une portion de section polygonale (10a) solidaire dudit arbre de pivotement (7) engagée dans une ouverture de section polygonale (10b) solidaire dudit support (8) présentant le même nombre de côtés que la section polygonale (10a) solidaire dudit arbre de pivotement (7), les angles de la section polygonale (10a) solidaire de cet arbre de pivotement (7) étant adjacents aux milieux des côtés de la section polygonale (10b) de ladite ouverture, des éléments en matériau compressible élastique (11) étant disposés dans les espaces ménagés entre ladite portion de section polygonale (10a) solidaire dudit arbre de pivotement (7) et ladite ouverture de section polygonale (10b) et constituant lesdits moyens de rappel élastiques.Device according to one of the preceding claims, in which said elastic return means (10) are formed by at least one portion of polygonal section. (10a) secured to said pivot shaft (7) engaged in an opening of polygonal section (10b) secured to said support (8) having the same number of sides as the polygonal section (10a) secured to said pivot shaft (7) angles of the polygonal section (10a) integral with this pivot shaft (7) being adjacent to the midpoints of the sides of the polygonal section (10b) of said opening, elements of elastic compressible material (11) being arranged in the spaces provided between said polygonal section portion (10a) integral with said pivot shaft (7) and said polygonal section opening (10b) and constituting said elastic return means. Dispositif selon l'une des revendications précédentes, dans lequel celui desdits éléments de retenue latérale (6a, 6b) disposé dans la trajectoire desdits moyens de fixation (5) par lesdits moyens de rappel élastiques (10), comporte deux surfaces de contact (6c, 6e) avec lesdits moyens de fixation qui forment deux angles respectifs aigus et d'inclinaisons opposées avec la trajectoire desdits moyens de fixation (5), une surface (6c) pour déplacer l'autre desdits éléments de retenue latérale (6a, 6b) latéralement à la trajectoire dudit câble (4) et l'autre surface (6e) pour que lesdits moyens de rappel élastiques (10) ramènent progressivement lesdits éléments de retenue latérale (6a, 6b) dans ladite position limite d'équilibre.Device according to one of the preceding claims, in which that of said lateral retaining elements (6a, 6b) disposed in the path of said fixing means (5) by said elastic return means (10), comprises two contact surfaces (6c , 6e) with said fixing means which form two respective acute angles and opposite inclinations with the path of said fixing means (5), a surface (6c) for moving the other of said lateral retaining elements (6a, 6b) laterally to the path of said cable (4) and the other surface (6e) so that said elastic return means (10) gradually return said lateral retaining elements (6a, 6b) to said limit equilibrium position.
EP03405460A 2003-06-25 2003-06-25 Safety device for preventing the cable of a transportation system from derailing Withdrawn EP1491417A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2228277A3 (en) * 2009-03-06 2011-11-09 Joannis Sykamiotis Safety device for funiculars, to avoid derailment of the cable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR817506A (en) * 1936-02-10 1937-09-04 Hoteliere Et Touristique Du Re Improvements to the ski lifts
FR1441428A (en) * 1964-10-07 1966-06-10 Further training in ski lift pulleys for skiers
FR1488224A (en) * 1965-10-14 1967-07-13 Pomagalski Jean Sa Device for supporting and guiding the cable of air carriers
US4226187A (en) * 1978-10-23 1980-10-07 Sdi Welding Corporation Ski lift apparatus and safety device
EP0745526A1 (en) * 1995-05-29 1996-12-04 Girak Garaventa GmbH Mechanical protection against cable derailment
WO2002051684A1 (en) * 2000-12-22 2002-07-04 Daniel Vuille Safety device for preventing a cable from derailing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR817506A (en) * 1936-02-10 1937-09-04 Hoteliere Et Touristique Du Re Improvements to the ski lifts
FR1441428A (en) * 1964-10-07 1966-06-10 Further training in ski lift pulleys for skiers
FR1488224A (en) * 1965-10-14 1967-07-13 Pomagalski Jean Sa Device for supporting and guiding the cable of air carriers
US4226187A (en) * 1978-10-23 1980-10-07 Sdi Welding Corporation Ski lift apparatus and safety device
EP0745526A1 (en) * 1995-05-29 1996-12-04 Girak Garaventa GmbH Mechanical protection against cable derailment
WO2002051684A1 (en) * 2000-12-22 2002-07-04 Daniel Vuille Safety device for preventing a cable from derailing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2228277A3 (en) * 2009-03-06 2011-11-09 Joannis Sykamiotis Safety device for funiculars, to avoid derailment of the cable

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