FR2584039A1 - ARRANGEMENT OF ROLLERS FOR AIR OR CABLE TRANSPORTATION PLANT FOR PERSON OR PRODUCT - Google Patents

Abstract

1. Aerial-rope installation for transporting goods or persons, of the type having one or more carrying-hauling aerial ropes (1) extending between two end stations respectively for loading or embarking (2a) and unloading or disembarking (2b), possibly with one or more intermediate stations, the ropes being held and guided by support rollers and compression rollers (3) carried by one or more generally several pylons (4) which are distributed between the stations (2a) (2b) and with which are associated in fixed or disengageable manner one or more generally several carriers (5), in particular cabins, a pylon (4) having at least one fixed beam (6) carried by at least one support bracket (7), the rollers (3) being mounted on the beam (6), characterized in that the rollers (3) are mounted on the fixed beam (6) along an intermediate reference curve C between the various rope curves corresponding to the different loading states possible, this reference curve C being determined by calculation for each particular placement, the rollers (3) being mounted on the fixed beam (6) totally independently -individually or in groups- of the neighbouring rollers or groups of rollers (3), the spindle (3a) of each roller (3) being fixedly mounted on the beam (6) or else movably mounted on the beam (6) by way of a rocker (8) articulated on the beam (6), which has the function of determining at least partly the path or the limits of the path of the rope (1) with a view to preventing sudden displacement or displacement of large amplitude of the rope (1) when the carriers (5) pass at right angles to a pylon (4) and thus preventing a swinging movement of the carriers.

Description

The invention relates to an orodut or dC = transport installation

people, overhead cable.

  There are known to installations for the transport of products or of people, with overhead cable, of the type comprising one or more carrier aerial platforms, tractors stretching between two end stations, respectively loading or embarkation and unloading or disembarking with possibly one or more intermediate stations, maintained and guided by support rollers and compression rollers carried by one or more generally: their pylons distributed between the stations and to which one or more vehicles are associated in a fixed or unpluggable manner - notamrr; ent des OQ cabins-. These installations are of the pulsed or back and forth type or

any other type.

  Often, the rollers are associated in pairs by being mounted at the two ends of primary pendulums articulated in their middle part at the two ends of secondary pendulums, themselves mounted in the same manner on one or more tertiary pendulums and so on, according to the number of rollers. The last pendulum forms a mounted beam articulated in its middle part to a gallows of the pylon. Such a structure has the advantage of being standardized, of allowing the rollers to follow the path of the cable, whatever its state of charge, to lead to a homogeneous distribution of the load on the rollers. This structure is particularly well suited to a distributed load, as is the case when the cabins have a unit weight of between 300 kg and approximately 1.5 tonnes, two neighboring cabins being spaced apart from each other by a distance between 15 meters and 45 meters approximately (which corresponds to a load

  distributed average of around 30 kilograms per linear meter).

  However, if one considers a concentrated and not distributed load, this structure has serious drawbacks. In this case, the load is on the one hand relatively large - in particular of the order of 1.5 to 2.5 tonnes per linear meter - and on the other hand concentrated over a limited length - in particular of the order of 3 at 6 meters. This occurs with large cabins following each other in close proximity to each other. In this case, and due to the concentration of the load on the cable, the latter can move suddenly and with great amplitude when the vehicles pass in front of a pylon. This leads to a swinging movement of the vehicles, which is always annoying, especially if it is a cabin for passengers, the comfort of which is far from satisfactory. This disadvantage is all the greater the higher the linear speed of the cable. The invention proposes to provide a solution to these drawbacks. To this end, it offers an installation of the type mentioned above in which a pylon comprises at least one fixed beam pcrtée by at least one bracket and on which the rollers are mounted,

  so that the rollers are - individually or in groups -

  completely independent of the rollers or groups of neighboring rollers, which has the function of at least partially imposing the routing or of the limits on the routing of the cable, in order to avoid sudden and large amplitude displacement of the cable when the vehicles pass

in front of a pylon.

  In return, such structures according to the invention cannot be totally standardized, as usually desired by designers and builders, and-must be calculated and adapted to each particular case. Similarly, contrary to the usual wishes of designers and builders, the load is not necessarily

  equally distributed on the rollers.

  The invention will be well understood thanks to the description which follows in

  reference to the accompanying drawings in which: FIG. 1 is a schematic view of an embodiment

  possible installation according to the invention.

  Figure 2 is a partial schematic view, on a larger scale.

  in elevation, of a pylon of an installation according to the invention in this case a train of support rollers, in a possible state of charge. Figure 3 is a schematic side view of the pylon shown in

Figure 2.

  FIG. 4 is an elevation view of a fixed beam of a pylon according to the invention with several possible reference curves,

3 2584039

these are not limiting.

  Figure 5 is a schematic elevational view of the roller train

  shown in Figure 2 in another possible state of charge.

  Reference is now made to FIG. 1 which represents an installation for transporting products or people with overhead cable, of the type comprising one or more overhead cables 1, carriers, tractors, extending between two end stations respectively for loading or d boarding 2a and unloading or disembarking 2b, possibly with one or more intermediate stations (not shown), maintained and guided by support rollers and these compression rollers 3 carried by one or more generally several pylons 4 distributed between the stations and to which are associated, in a fixed or disengageable manner, one or more vehicles 5 in particular cabins. The installation is of the pulsed or back and forth type, or of any other type, subject to what is mentioned below with regard to

  relates to its' concentrated charge character. It has one or ..

  several carrying cables and tractors or several cables each carrying or tractor. In the following text, we speak of 'cable' without further details, which therefore refers to all

possible variants.

  As mentioned above, the installation is of the "concentrated load" type, that is to say that the distribution of the vehicles 5 along the cable 1 and the capacity of the vehicles 5 are such that the load that they exert on the cable 1 is on the one hand relatively large - in particular of the order of 1.5 to 2.5 tonnes per linear meter - and, on the other hand, concentrated over a limited length - in particular of l '' from 3 to 6 meters. The case of a concentrated load installation occurs with several cabins - for example three - following each other in close proximity to each other and

  possibly associated with each other.

  The values indicated are not to be considered strictly, but allow an installation according to the invention to be opposed to installations of the known state of the art, with distributed load (average distributed load of the order of 30 kilograms per meter q. + 2584039 linear cable and vehicles spaced from each other from 15 to 45

about meters).

  Preferably, the installation is also of the rapid scrolling type, the linear scrolling speed of the cable 1 being between 7 and 8 meters per second, in particular equal to or of the order of 7.5

meters per second.

  According to the invention, and as shown in Figures 2 and 3. a pylon 4 has at least one fixed beam 6 carried by at least one bracket 7 and on which the rollers 3 are mounted (support

or compression).

  The rollers 3 are therefore individually or in groups - in particular in pairs as in the example shown - completely independent of the rollers 3 or of the neighboring groups of rollers 3 (this as opposed to the prior art or from one end to the other). other of a train of rollers, the rollers are kinematically associated with each other

  thanks to articulated primary and secondary balancers, etc ...).

  The function of this structure is to impose at least partially the routing or limits on the routing of the cable 1 (this as opposed to the state of the art where it is the routing of the cable which determines the position of the rollers). This structure therefore makes it possible to avoid the sudden and large amplitude displacement of the cable 1,

  when vehicles 5 pass over a pylon 4.

  Thus, thanks to the invention, it is avoided that the vehicles 5 constituting a concentrated load are affected by a swinging movement while passing in line with a pylon 4, even though the vehicles 5

  create a concentrated load on cable 1.

  The rollers 3 are mounted on the fixed beam 6 along a reference curve C. This reference curve C is an intermediate curve between the different curves corresponding to the different possible states of charge. The curve C can, for example, correspond to the state where the cable 1 undergoes the maximum load. Curve C can correspond to a particular or fictitious state of charge between the different possible states of charge, depending on the configuration of the installation. s 2584039 This curve C is determined by calculation for each imrrplar. particular taton. In some cases, this curve C can be at ccncavit-, turned up or down and approach a parabola or a chain. In other cases, it can also have a more complex form. Preferably and for reasons of resistance, the curve C extends in the middle part of the fixed beam 6. For this reason, the fixed beam 6 can have more or less complex shapes depending on

cases.

  The fixed beam 6 can have, in particular, a general form of pseudo circular segment, which allows it to be used with different reference curves. This characteristic which allows a certain standardization is illustrated by FIG. 4 in which we see that the same fixed beam 6 can relate to several - in this case three reference curves C1, C2, C3, etc. ... According to the necessities, the rollers 3 are distributed regularly or not along the reference curve C. According to a possible alternative embodiment, not shown, the axes 3a of the rollers 3 are fixedly mounted on the fixed beam 6. In this case, the rollers 3 do not have only one envelope curve (tangent to the rollers 3). According to another possible alternative embodiment, shown in FIG. 2, the axes 3a of the rollers 3 are mounted mobile on the fixed beam 6. These rollers 3 or some of them then have several possible envelope curves. To this end, the rollers 3 can be carried by pendulums 8 articulated on the fixed beam 6 around axes 8a, parallel to the axes 3a. In one possible embodiment, a balance 8 supports two rollers 3 placed respectively at each of its end parts 8b, the hinge axis 8a of the balance 8 being in its middle part Bc. This arrangement allows a certain standardization while ensuring a minimum of contact between the cable 1 and the rollers 3, in the different states.

possible load of cable 1.

  It is clear that a balance 8 can receive a number of different rollers. The fixed beam 6 can, for its part, receive any and appropriate number of rollers 3 ranging from a few - eight for example - to several tens - thirty for example - the length

  of the fixed beam 6 is therefore adapted accordingly.

  In the case of several parallel cables 1, several fixed beams 6 are provided joined by spacers or a single fixed beam having in cross-section a V-shaped profile (or in inverted V>. The installation may include, if necessary , means forming a stop limiting] e pivoting of the pendulums 8 or even conventional return means urging the pendulums 8 towards their position

reference.

  In FIG. 5 is represented - as a fictitious case and by way of illustration only - the train of rollers 3 of FIG. 2 (in a different configuration respectively when empty in FIG. 5, and under load in FIG. 2). Some or all of the pendulums 8 have moved in a rolling fashion around the axes 8a; inducing pne 'new curve

  envelope - corresponding to the cable routing 1-.

  In this situation, some rollers 3 are in contact with the cable

  1 - and moreover with a more or less significant variable pressure -

  while other rollers 3 are inactive because they are spaced from cable 1.

  This provision is accepted, as a counterpart to the absence

  This sudden movement and significant amplitude of the cable 1.

Claims (7)

  1 / Installation for transporting products or people with aerial training, in particular of the type comprising one or more carrying aerial cables, tractors (1), extending between two extrar.mt stations for respectively loading or boarding (2a ) and oe - disembarking or disembarking (2b), with possibly one or more intermediate stations, maintained and guided by support rollers and these compression rollers 13) carried by one or more generally several pylons (;) distributed between the stations 12a) (2b), and with which one or more manager is associated in a fixed or disengageable manner, generally several vehicles t5) -in particular cabins- characterized in that a pylon l;) comprises at least one fixed beam (6) carried by   at least one bracket (7) and on which the rollers (3) are mounted.   so that the rollers (3) are - individually or in groups -   completely independent of the rollers or groups of rollers (3) volins which has the function of imposing at least partially the routing or limits to the routing of the cable (1). in order to avoid sudden and large displacement of the cable {1) when the vehicles (5) pass in front of a pylon (4), creating a movement this vehicle swing.   21 Installation according to claim 1 characterized in that it is a concentrated load. the distribution and the capacity of these vehicles (5) being such that the load which results therefrom is on the one hand relatively large - in particular of the order of 1.5 to 2.5 tonnes per linear meter and on the other hand concentrated on a length   limited in particular of the order of 3 to 6 meters.   3 / Installation according to claims 1 and 2 characterized by the   fact that the rollers (3) are mounted on the fixed beam (6) along a reference curve (C) intermediate between the different   curves corresponding to the different possible states of charge.   4 / Installation according to claims 1 to 3 characterized by   fact that the axes (3a) of the rollers (3) are mounted fixed on the beam fixed (6).   / Installation according to claims I to 3 characterized by the   fact that the axes (3a) of the rollers (3) are mounted mobile on the fixed beam (6).   El Installation according to claim 5 characterized in that the axis (3a) of a roller (3) is carried by a balance (6) mounted articulated on the fixed beam (6) around an axis (Ba) parallel to the axis (3a) of the roller (3).   7 / Installation according to claims 5 and 6 characterized by the   fact that a balance (8) comprises at least two rollers (3), especially in each of its extreme parts * (Bb), the balance (8) étar.t   articulated to the fixed beam [6) in its middle part (8c).   8 / installation according to claim 3 characterized in that the reference curve (C) corresponds at least substantially to the state   o the cable (1) undergoes the maximum load.   9 / Installation according to any one of claims 1 to 8, characterized by   fact that ga) ets (3) are distributed regularly or not along Ce the reference curve (C).   / Installation according to any one of claims 1 to 9, characterized   by the fact that the linear speed of the cable (1) is between 7 and 8   meters per second, in particular equal to or of the order of 7.5 meters per second.   11 / Installation according to any one of claims 1 to 10, characterized   by the fact that it comprises several - in particular three - cabins (5) following each other   in close proximity to each other, associated with each other.