Classifications

• • 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
  • B61B12/005—Rescue devices for passengers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
  • B61B7/00—Rope railway systems with suspended flexible tracks

Definitions

• the present invention relates to an aerial cableway system, which is particularly suitable for particularly long routes in which a high transport capacity is required and in particular in difficult and difficult to reach terrain.
• Aerial ropeways such as the circulating ropeways and aerial tramways are known, single ropeway facilities or two-ropeway facilities;
• Single rope means a cable car system in which a cable system (consisting of one or more ropes) simultaneously takes over the pulling and carrying functions of the vehicles;
• two-rope means a cable car system in which the pulling and carrying functions of the vehicles are performed by two different cable systems, each consisting of one or more cables.
• the cabins On the aerial tramway, the cabins generally travel back and forth, whereby these cable car systems are equipped with two cabins with a high capacity (up to 200 people), are permanently coupled to the pull rope (single or multiple rope system) and move from one station to another and move back on two separate and parallel routes; the heavy weight of the cabins requires the use of a two-rope system, the vehicles being equipped with wheels that run on a running route consisting of one or more immobile suspension cables.
• these systems can consist of a single cabin or two pairs of cabins (in this case there is an intermediate station exactly halfway); other variants are possible in special cases.
• the aerial tramway can reach high speeds (in the order of 12 m / s, passengers get on and off while the cabin is stationary); nevertheless, the transport performance (number of people transported per hour) is limited by the length of the cable car facilities and the time required to get to the station and to get passengers on and off.
• the vehicles can be permanently coupled to the pull rope or can be uncoupled from the pull rope in the stations;
• the cable car facilities are very simple, but the vehicles pass through the stations at the same speed as that reached on the route.
• the driving speed must enable the passengers to get on and off the vehicle in a safe and comfortable manner and is therefore quite limited (the maximum values today are of the order of 2.0 m / s; 2.5 m / s can only be achieved with special devices ).
• the vehicles can be uncoupled from the pull rope when entering the station, braked by appropriate devices, pass the station at a reduced speed and then accelerated again to the running speed of the pull rope.
• Cable cars of this type are complex and expensive, but the speed of travel is no longer determined by the boarding and disembarkation phases impaired and can therefore be much higher; the speeds achieved today are 6 m / s.
• the orbits can be designed as a single cable or two cable car; According to the general technology, the monorail systems are much more widespread, with the two-cable system being used in special cases; in fact, the two-rope system enables very long spans (even 1000 m and more) to be carried out without intermediate beams.
• the division into two parallel cable car systems also has the advantage that it can be possible to use only one of the two cable car systems with fewer passengers, and to maintain operation with limited transport performance even in the event of a serious defect or extraordinary maintenance.
• the main disadvantage lies in the higher horizontal dimensions of the entire cable car system, which requires a strip that is twice as wide (usually to be cut down) than normal.
• the invention aims to obtain an aerial cableway with a high transport capacity, the rescue work can be carried out in a quick and safe manner with relatively limited use of personnel and equipment in the event of a long standstill, even with inaccessible terrain and high ground-rope distances.
• Another purpose is to achieve greater transport flexibility so as not to use up the full power of the tramway system in moments of low passenger demand.
• What has been described above is obtained simply by dividing the cable car system into two parallel cable car systems, which are characterized in that they are not necessarily identical, but one is arranged above the other and not adjacent. The result is a design that is particularly suitable for single ropeway facilities as a circulating ropeway or intermittent (aerial tramway).
• the horizontal dimensions remain as in the case of a single cable car system, but if one of the two cable car systems comes to a standstill, the intact cable car system can simply be used both for distributing the rescue teams along the cable and for transporting the passengers without having to abseil; because compared to horizontal transfers, a vertical transfer of a few meters from one line to another can be carried out in a simple and safe manner, both for the passengers and for the rescue teams.
• the still functional cable car system is temporarily closed for normal operation and used to transport the rescue teams and the rescue equipment in predetermined positions along the cable, with the vehicle of each team exactly above or positioned under the cabin to be recovered.
• the stationary cable car is the lower one, the teams position themselves above the cabin to be recovered and simply descend to the lower cabin using simple mountaineering equipment. Then, depending on the ground clearance and accessibility of the site, the passengers can simply be lowered to the ground or hoisted into the upper vehicle. If it is the rescue work is carried out in the same way, except for the fact that the first miner reaches the upper cabin using a short light ladder or other device provided.
• a transport system according to the invention provides for the use of two classic single-ropeway systems, the supporting pull rope being mounted on corresponding roller batteries, but these are not supported by normal track supports, but by another "carrying rope" system with their own designated frame in the intermediate position.
• suspension ropes cannot be classified like the normal suspension ropes of the two-cable railway system, since no vehicles run on them and, in reality, perform almost the same function as ropes on a suspension bridge; as a consequence, the safety factor required for these suspension ropes is lower than that for them real suspension ropes, which allows these ropes to be subjected to high tension, with spans of considerable length longer spans than with a classic two-cable car system.
• a cable car system designed in this way usually requires few girders, which in some cases can reach remarkable heights, analogous to the two-cable car facilities; nevertheless, these girders only function as anchoring and for diverting the suspension cables, and consequently do not have to meet the strict requirements for bending and torsional rigidity that are placed on the ordinary gondolas of the cable cars; following the girders, the two single-rope lines can advantageously free themselves from the course of the supporting ropes and use classic supports, albeit with two levels.
• mixed solutions can be used, with some sections of track of classic type and others with suspension.
• Figure 1 shows schematically a section of a cable car system according to the invention.
• the figure shows two known monorail systems 2 and 3, not necessarily identical, one above the other and with a variable vertical distance, usually from 5 to 10 m, preferably 7 m; the cable car facilities include the two support cables 4.5 on which the vehicles 1 are suspended; the top and bottom stations are also arranged one above the other.
• the support rollers (or hold-down rollers) of the support pulling cables 4, 5 are supported in part by solid supports of known and customary type 8 (albeit with two floors), and in part by frames 9, which are held by a support cable system 10, which has end anchors 11 known type is equipped, both on the floor and at the top of the special carrier 12th
• the suspension cables are not interrupted on all special supports 12, but instead continue with the following span by being redirected to known corresponding devices (rope shoes).
• connection of said ropes to said supports is carried out in cooperation with intermediate suspension elements which are able to enable the controlled displacement of the ropes in accordance with the variation in tension.
• the special supports 12 can also advantageously be used to mount fixed roller batteries there as in the normal supports 8.
• Figure 2 shows a design variant, with the end stations 6, 7 being offset longitudinally in order to facilitate the movement of the vehicles and the passengers.
• FIG 3 shows a schematic cross section of a cable car system according to the invention connected to one of the frames 9.
• the suspension cables 21, 22, 23, 24 (which represent the suspension cable system 10 of Figure 1) are in the corner points of a quadrangle, the longitudinal beam 25, 26 guarantee the distance between the ropes, while the horizontal cross members 27, 28 both guarantee the spacing and also support the support arms 29 for the roller batteries 30 on which the support pull cables 4, 5 run;
• the upper cables 21, 22 are not necessarily the same as the lower cables 23, 24 and also the horizontal distance between the cables 21, 22 can be different from that of the cables 23, 24.
• each of the 4 cables can advantageously be of a system of 2 or more parallel ropes are carried and the side members do not necessarily have to be vertical.
• Figure 4 shows a construction variant according to which the longitudinal beams 25, 26 are vertical and have a greater length than the distance between the cross beams 27, 28; they are constructed in such a way that the attachment of the suspension cables and the cross beams at different heights is made possible; in this way, with the use of a standard frame, it is possible and convenient to mount the roller batteries at a different height than the carrying cables, in such a way that the course of the carrying cables is cleared of the natural course of the carrying cables.
• Figure 5 shows a further design variant in which the support arms 29 are hinged to the cross members 27, 28 in such a way that the roller batteries are held in a vertical plane, even in the event of a transverse inclination of the frames, e.g. is caused by an asymmetrical load.
• Figure 6 shows a further design variant in which the articulated support arms 29 are connected to the cross member by a further arm 31 such that the two arms are forced to maintain the same vertical inclination.
• Figure 7 shows a schematic axonometry following one of the special carriers 12; the illustration shows in particular the anchoring 32 or the diversion of the support cables 21, 22, 23, 24 at the top of the supports and the cross supports 27, 28 analogously to the illustrations 3, 4, 5, 6, which are in the lower part of the supports 12 themselves are attached.
• the ropeway system makes it possible to make the distribution of the roller batteries independent of the course of the floor profile and, as a rule, it makes it possible to remove any hold-down device (apart from possibly at the station exit), as a consequence one has a drastic one Reduction of the friction on the route and consequently the force required to set the cable car system in motion, and furthermore a reduction in the cross section of the suspension cable.

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• Engineering & Computer Science (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
• Catalysts (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=11377000

Family Applications (1)

Country Status (3)

Cited By (1)

Citations (3)

• 1997
  • 1997-04-23 IT IT97MI000952A patent/IT1296277B1/it active IP Right Grant
• 1998
  • 1998-04-22 EP EP98919462A patent/EP0910528A1/de not_active Withdrawn
  • 1998-04-22 WO PCT/IT1998/000094 patent/WO1998047752A1/de not_active Application Discontinuation

Patent Citations (3)

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