The present invention relates to a cableway having at least two cableway stations and at least one cableway vehicle that can be moved between the cableway stations using a traction cable, the cableway vehicle having a conveying body and a suspension, the conveying body serving to accommodate persons and/or objects, and the conveying body being suspended in a spring-loaded manner on the suspension. The invention also relates to a method for operating a cableway having at least one cableway vehicle that can be moved between the cableway stations using a traction cable.
Cableway systems are used to transport persons and materials between two or more cableway stations. For this purpose, a plurality of cableway vehicles, such as chairs or cable cars, is moved between the cableway stations, either circulating or shuttling back and forth. The cableway vehicles are moved between the cableway stations by means of at least one traction cable. The cableway vehicle can be suspended from at least one fixed cable or from the traction cable (aerial cableways), or can be movably arranged on rails or on the ground (standing cableways), and can be moved with at least one traction cable. However, the cableway vehicle can also be releasably or fixedly clamped to the traction cable and be moved with the traction cable. In the case of circulating cableways, the cableway vehicles are often uncoupled from the traction cable in a cableway station, for example by means of releasable cable clamps, and are moved through the cableway station at a lower speed, in order to make it easier for persons to board or disembark or to make it easier to load or unload material.
A known practice is that of actuating certain functions of cableways—for example, opening or closing a cable clamp, raising or lowering a safety bar or a weather protection hood of a chair, or opening and closing a door of a cable car or gondola in a cableway station—via link controls. For this purpose, a link is arranged so as to be stationary relative to the station, and a contact element on the cableway vehicle contacts the link when it passes through the station. The contact element is arranged on a rotatably mounted lever which is pivoted upon the contact. The specific function is then carried out via a Bowden cable or an arrangement of rods acting on the lever. An example of the opening and closing function of a door can be found in U.S. Pat. No. 3,742,864 A, and EP 1 671 867 B1 shows an example of a safety bar being raised and lowered.
In particular in the case of cable cars or gondolas as cableway vehicles, said cableway vehicle can swing in the cableway station when persons board or disembark because there is play between the platform and the cableway vehicle. The cableway vehicle may also sink or rise in the cableway station due to the weight of the persons boarding or disembarking. Such relative movements of the cableway vehicle relative to the platform can be uncomfortable for persons boarding or disembarking and impair the safety of the cableway operation. Similar problems can also arise in material transport.
EP 3 299 243 B1 discloses a cableway with a cableway station in which a cable car is moved longitudinally between two floor guide rails. To avoid blocking the cable car, the distance between the floor guide rails in the transverse direction is greater than the width of the cable car. This causes the cable car to swing in the transverse direction, in particular when boarding the cable car, which results in the cable car hitting the floor guide rails and in a lack of sense of safety on the part of the passengers. In order to avoid this, EP 3 299 243 B1 proposes that, in the region of the boarding platform, the cable car be blocked by a blocking apparatus in the transverse direction. The blocking apparatus can be designed as a downwardly extending pin which is arranged centrally on the floor of the cable car and cooperates with a clamping rail arranged on the floor of the cableway station. As a result, the cable car is fixed in a central position between the floor guide rails in the transverse direction. However, the blocking apparatus can also be designed as an active slider that is integrated into the boarding platform. The slider can be controlled by an electric motor and can be pressed in the transverse direction against a cable car standing in the region of the platform in order to press the cable car against the opposite floor guide rail. However, this has the disadvantage that this is only possible when the cable car is at a standstill and, in addition, the structural design is very complex.
Based on the prior art, it is therefore an object of the present invention to specify a cableway in which the safety and comfort for persons when loading and unloading the cableway vehicles can be improved as simply and economically as possible.
This object is achieved according to the invention in that at least one vehicle-fixed contact rail which extends in the direction of movement of the cableway vehicle is arranged on the conveying body, and in that at least one guiding portion having at least one stationary first guiding device which extends in the direction of movement of the cableway vehicle is provided in at least one cableway station, the first guiding device cooperating with the contact rail of the cableway vehicle, at least during the movement of the cableway vehicle through the guiding portion, in order to generate a guiding force, the guiding force shifting the conveying body relative to the suspension from a rest position, in which the cableway vehicle can be moved outside of the guiding portion, into a guidance position, in which the cableway vehicle can be moved through the guiding portion. As a result, on the one hand, lateral pendulum movements of the conveying body in the region of the loading and unloading regions can be reduced, in particular prevented, as a result of which the safety of the passengers when boarding and disembarking the cableway vehicle can be increased. In addition, pendulum movements of the conveying body in the direction of movement of the cableway vehicle can be reliably reduced. The spring-loaded suspension of the conveying body is therefore deliberately used in order to shift the conveying body from the rest position into a guidance position relative to the suspension. Due to the fact that, in the guidance position, a restoring force acts on the cableway vehicle which wants to move the cableway vehicle back into the rest position against the guiding force and the guides that work together and prevent the return, a stabilization of the cableway vehicle takes place in the transverse and longitudinal directions.
It can be advantageous if at least two vehicle-fixed contact rails which extend in the direction of movement of the cableway vehicle and are spaced apart from one another transversely to the direction of movement are arranged on the conveying body, and that at least two stationary first guiding devices are provided in at least one guiding portion, in each case one of the first guiding devices cooperating with a contact rail in order to generate the guiding force. As a result, the guiding force acts on the conveying body in the transverse direction at a plurality of points, as a result of which a purely vertical shifting of the conveying body relative to the suspension can substantially be achieved.
It is advantageous if at least one first guiding device is designed as a ceiling guide rail which is arranged on a stationary structure in the upper region of the cableway station and that the corresponding contact rail is arranged in an upper lateral region on the cableway vehicle. This arrangement is advantageous because the contact rail and the ceiling guide rail cooperate in a region that is not easily accessible to passengers and staff. As a result, safety can be increased for passengers and staff.
Preferably, at least one guiding portion is provided with at least one stationary second guiding device which extends in the direction of movement of the cableway vehicle, with the conveying body being deflected in the direction of the second guiding device by means of the guiding force in the region of the guiding portion, with the second guiding device cooperating with a part of the cableway vehicle in the region of the guiding portion in order to guide the cableway vehicle, at least one second guiding device preferably being designed as a floor guide rail which is arranged on a stationary structure in the lower region of the cableway station. As a result, the cableway vehicle is guided on both sides, as a result of which the stabilization of the cableway vehicle in the transverse direction can be further improved.
At least one first guiding device and/or at least one second guiding device is/are advantageously designed as a slide rail and/or a plurality of rotatably mounted rollers is arranged one behind the other in the direction of movement of the cableway vehicle on at least one first guiding device and/or on at least one second guiding device. As a result, the friction between the ceiling guide rail and the contact rail can be reduced, and the cableway vehicle can be guided smoothly.
At least one first guiding device and/or at least one second guiding device preferably has a damping apparatus and/or the at least one contact rail has a damping apparatus. As a result, impacts on the cableway vehicle that can occur, for example, when driving into the guiding portion, can be cushioned and dampened.
The conveying body is preferably designed as a cable car. As a result, the invention can be advantageously used in a gondola cableway.
Furthermore, the object is achieved with a method for operating a cableway in that the cableway vehicle is moved into a guiding portion of a cableway station, with a stationary first guiding device of the cableway station, which guiding device extends in the direction of movement of the cableway vehicle, cooperating, during the movement of the cableway vehicle through the guiding portion, with a vehicle-fixed contact rail, which is arranged on the conveying body and which extends in the direction of movement of the cableway, in order to generate a guiding force, the conveying body being moved, during the movement through the guiding portion, relative to the suspension from a rest position, in which the cableway vehicle is moved outside of the guiding portion, into a guidance position, in which the cableway vehicle is moved through the guiding portion, by means of the guiding force.
The present invention is described in greater detail below with reference to
The structure and function of a cableway system is well known, which is why it is only briefly explained with reference to
If the cableway 1 is not equipped with cableway vehicles 5 that are permanently clamped to the traction cable 4, a cableway vehicle 5 of the cableway 1 entering the cableway station 2 is decoupled from the traction cable 4, usually by means of a releasable cable clamp 10 (FIG.
2), and moved along a guide rail 7 through the cableway station 2, usually at a significantly lower speed than in the portion of the travel between the cableway stations 2. A conveyor 8 is provided along the guide rail 7, said conveyor moving the cableway vehicle 5 in the cableway station 2. The conveyor 8 is designed, for example, in the form of driven conveyor wheels 9 arranged in the cableway station 2, which wheels cooperate with a friction lining 11 on the cableway vehicle 5 in the cableway station 2. When the cableway vehicle 5 exits the cableway station 2, the cableway vehicle 5 is accelerated via the conveyor 8 at the exit and then coupled back to the traction cable 4, for example by means of a cable clamp 10.
The cableway 1 can be designed, for example, as a cable car transport system or cable gondola transport system in which cableway vehicles 5 have cable cars or gondolas that are guided along a platform 6. Passengers in the cableway station 2 can board or disembark from conventional cableway vehicles 5 via the platform 6. The cableway vehicle 5 could of course also be used for loading and unloading objects to be transported, for example winter sports equipment, bicycles, strollers, etc. A loading/unloading region is usually provided along a fixed portion of the platform 6 for persons to board or disembark and/or generally for loading/unloading. The loading/unloading region can, for example, be specially marked and separated from the rest of the region of the cableway station 2, for example by barriers 18, in which region access is not permitted for unauthorized persons.
For example, a common loading/unloading region could be provided in which both boarding/loading and disembarking/unloading take place. Usually, however, a separate loading region E and unloading region A are provided, which are separated from one another, as indicated in
In
Of course, other configurations of a cableway 1 and/or a cableway vehicle 5 are also conceivable; for example, a cableway 1 having cableway vehicles 5 permanently clamped to the traction cable 4 or having fixed cables to which the cableway vehicle 5 is attached via a traveling mechanism 13 and is moved by at least one traction cable 4. Likewise, the cableway 1 can be designed as a pendulum cableway with or without a fixed cable; i.e. with a traction cable 4 which travels back and forth, rather than a circulating traction cable 4. However, the specific design of the cableway 1 is irrelevant to the invention.
The cableway 1 shown is designed as a circulating cableway in the form of a cable car transport system, i.e. the conveying body K is a cable car in this case. Doors 19 are often only arranged in each case on one side of the cable cars of a cable car transport system, since the loading/unloading, for example the boarding/disembarking of persons via the platform 6, usually only takes place from one side. For example, in a mountain station of a circulating cableway, an unloading region A can first be provided, in which the passengers can disembark from the cable car, usually during the movement of the cableway vehicle 5, as shown in
In a pendulum cableway, doors 19 are generally usually provided on both sides of the cable car. However, boarding and/or disembarking takes place usually only from one side. For example, in the case of a pendulum cableway, the door 19 on one side is often opened first for disembarking and the opposite door 19 is opened with a delay for boarding. The cableway vehicles 5 are therefore usually loaded on one side and off-center in the transverse direction when persons board and disembark, regardless of the specific design of the cableway (circulating cableway or pendulum cableway). The load also depends heavily on the number, weight and movement of the persons or the material and is therefore very irregular. So far, this has led to the cableway vehicle 5 being set into a pendulum movement in the transverse direction (indicated by the double arrow in
In the example shown, a plurality of spring units 20 is provided between the suspension 17 and the conveying body K of the cableway vehicle 5, e.g. the cable car, with which spring units the conveying body K of the cableway vehicle 5 is spring-loaded, i.e. attached to the suspension 17 so that it is able to swing, as shown schematically in
The invention is intended to increase the safety of passengers when boarding or disembarking and, in general, to increase safety when loading/unloading the cableway vehicle 5 by reducing the pendulum movement of a cableway vehicle 5 in the transverse and longitudinal directions, at least in the region of the loading/unloading regions.
According to the invention, it is therefore provided that at least one vehicle-fixed contact rail 23 which extends in the direction of movement of the cableway vehicle 5 is arranged on the conveying body K and that at least one guiding portion FA having at least one stationary first guiding device 22 which extends in the direction of movement of the cableway vehicle 5 is provided in at least one cableway station 2 of the cableway 1. The first guiding device 22 cooperates, at least during the movement of the cableway vehicle 5 through the guiding portion FA, with the contact rail 23 of the cableway vehicle 5 arranged on the conveying body
K in order to generate a guiding force. As a result, the guiding force shifts the conveying body K relative to the suspension 17 from a rest position, in which the cableway vehicle 5 can be moved outside of the guiding portion FA, into a guidance position, in which the cableway vehicle 5 can be moved through the guiding portion FA. The spring-loaded arrangement of the conveying body K on the suspension 17 of the cableway vehicle 5 is therefore deliberately used in order to shift the conveying body K from the rest position into a guidance position relative to the suspension 17 during the movement through the guiding portion FA. In the guidance position, due to the spring force of the spring unit(s) and/or due to gravity, a restoring force acts on the cableway vehicle 5, as a result of which the cableway vehicle 5 strives to return into the rest position. As a result, the stability of the cableway vehicle 5 in the transverse direction and in the longitudinal direction can be increased, as a result of which lateral swinging as well as swinging back and forth of the cableway vehicle 5, in particular of the conveying body K, can be reduced.
In a circulating cableway, as shown in
At least one first guiding device 22 is preferably designed as a ceiling guide rail 22a which is arranged on a stationary structure in the upper region of the cableway station 2, as can be seen in
Furthermore, for improved stabilization of the cableway vehicle 5 in the transverse direction, at least one stationary second guiding device 21 which extends in the direction of movement of the cableway vehicle 5 can be provided in the guiding portion FA. The second guiding device 21 is arranged in such a way that the cableway vehicle 5 is deflected in the direction of the second guiding device 21 by means of the guiding force in the region of the guiding portion FA. The second guiding device 21 thereby cooperates with a part of the cableway vehicle 5 in the region of the guiding portion FA in order to guide the cableway vehicle 5, for example by the cableway vehicle 5 making contact with the second guiding device 21. At least one second guiding device 21 is preferably designed as a floor guide rail 21a which is arranged on a stationary structure in the lower region of the cableway station 2, as shown in
In the example according to
When driving through the cableway station 2, the contact rail 23 of the cableway vehicle 5 cooperates with the ceiling guide rail 22a in the region of the guiding portion FA, for example by the contact rail 23 being in contact with the ceiling guide rail 22a. The ceiling guide rail 22a and the contact rail 23 are designed in such a way that the conveying body K is pressed vertically downward in the region of the guiding portion FA by the ceiling guide rail 22a (shown on the right in
In the example shown in
However, two vehicle-fixed contact rails 23 which extend in the direction of movement of the cableway vehicle 5 and are spaced apart from one another transversely to the direction of movement could also be arranged on the conveying body K. For example, a contact rail 23 could be arranged in each case on the conveying body K on both sides of the cableway vehicle 5 (continuous lines on the right and dashed lines on the left in
A first guiding portion FA could be assigned to the unloading region A, for example, which first guiding portion presses the cableway vehicle 5 in the direction of the platform 6 of the unloading region (to the left), and the subsequent loading region E could be provided with a second guiding portion FA having the floor guide rail 21a in a reverse arrangement relative to the first guiding portion FA and the ceiling guide rail 22a, which second guiding portion presses the cableway vehicle 5 toward the platform 6 of the loading region E (to the right). This embodiment could, for example, be advantageously provided at a middle station of a cableway 1 arranged between the mountain station and the valley station, since the cableway vehicles 5 do not turn in this station, but rather pass through on two sides (upward and downward journey). If contact rails 23 are arranged (seen in the direction of travel) on both sides of the cableway vehicle 5 (
However, a combination of both variants would also be conceivable, in which a floor guide rail 21a and a ceiling guide rail 22a are arranged on both sides in each case. In this case, however, only one contact rail 23 would be provided on the conveying body K (in this case, for example, above the door 19 of the cable car), which contact rail then, for example, only cooperates with the ceiling guide rail 22a above the platform 6 in order to press the cableway vehicle 5 against the opposite floor guide rail 21a (in this case in dashed lines). In this case, however, the contact rail 23 could also be arranged on the opposite side in the upper lateral region (in this case on the right) of the conveying body K (in this case, for example, on the roof of the cable car). The contact rail 23 would then cooperate with the ceiling guide rail 22a on the opposite side of the platform 6 and press the cableway vehicle 5 in the direction of the floor guide rail 21a arranged on the platform 6. As a result, different cableway vehicles 5 could be used, in which the contact rail 23 is arranged either on the side facing the platform 6 in the upper region of the conveying body K (in
The embodiment shown in
In a lower region of the cableway vehicle 5, a spacer element 24 which cooperates with the second guiding device 21 in the region of the guiding portion FA is preferably also arranged, for example is in contact with the floor guide rail 21a, as shown on the left in
According to a further embodiment of the invention, it can be provided that at least two vehicle-fixed contact rails 23 which extend in the direction of movement of the cableway vehicle 5 and are spaced apart from one another transversely to the direction of movement are arranged on the conveying body K, and that at least two stationary first guiding devices 22 are additionally provided in at least one guiding portion FA. In each case, one of the first guiding devices 22 interacts with a corresponding contact rail 23 to generate the guiding force. The contact rails 23 could be arranged, for example, in the transverse direction on both sides of the cableway vehicle 5 in each case in the upper region of the conveying body K, in this case on the roof of the cable car, as shown in
In contrast to the previously described embodiments, the conveying body K is loaded in this case simultaneously at two positions in the transverse direction by the first guiding devices 22. The effect of this is that the conveying body K is pressed vertically downward on both sides in each case in the region of the contact rails 23 relative to the suspension 17 against the spring force or restoring force of the spring units 20. The restoring forces of the spring units 20 counteract this shifting, as a result of which the conveying body K is in a stable position. The swinging capacity of the conveying body K caused by the spring-loaded arrangement of the conveying body K on the suspension 17 (which is desired outside of the guiding portion FA) is deliberately limited as much as possible in the region of the guiding portion FA, in particular completely suppressed. As a result, lateral pendulum movements of the conveying body K are reliably reduced, preferably avoided. Due to the fact that the contact rails 23 cooperate with the corresponding first guiding device 22 over a relatively long range in the direction of movement, pendulum movements of the conveying body K in the direction of movement (swinging back and forth) are reliably reduced, preferably largely avoided. The second (double) embodiment has the advantage over the first (one-sided) embodiment that substantially no lateral deflection of the conveying body K takes place in the guiding portion FA. As a result, for example, the floor of a cable car can be aligned substantially parallel to the platform 6 during the movement of the cableway vehicle 5 through the guiding portion FA, as a result of which comfort when boarding or disembarking can be further increased.
Irrespective of the embodiment variant, at least one first guiding device 22 and/or at least one second guiding device 21 is preferably designed as a slide rail. Alternatively or additionally, a plurality of rotatably mounted rollers 25 could also be arranged one behind the other in the direction of movement of the cableway vehicle 5 on at least one first guiding device 22 and/or on at least one second guiding device 21. As a result, the friction between the cableway vehicle 5 and the corresponding guiding device 21, 22 can be reduced during the passage of the cableway vehicle 5 through the guiding portion FA.
In the example shown in
The rollers would then roll on the cableway vehicle 5, preferably on the spacer element 24 arranged thereon. In order to reduce the mechanical loads on the cableway vehicle 5 and/or on a guiding device 21, 22 and to increase comfort for the passengers, a damping apparatus (not shown) may be provided, according to a further advantageous embodiment of the invention, on at least one first guiding device 22 and/or on at least one second guiding device 21. Alternatively or additionally, a damping apparatus 26 could also be provided on at least one contact rail 23. In a known manner, the damping apparatus can comprise, for example, a mechanical spring or gas spring and a mechanical, pneumatic or hydraulic damper. In the simplest case, for example, a suitable buffer element such as a rubber buffer could also be provided. The damping apparatus 26 shown in
As a result, hard impacts on the cableway vehicle 5 caused by the contact rail 23 hitting the ceiling guide rail 22a hard can be avoided. In a similar way, a damping apparatus (not shown) could of course also be arranged on the floor guide rail 21a alternatively or additionally, in order to cushion and dampen horizontal movements of the cableway vehicle 5 in the region of the guiding portion FA. The damping apparatus 26 should have a sufficiently soft damping characteristic so that impacts are reliably absorbed, but should also be sufficiently hard so that pendulum swinging motions of the cableway vehicle 5 are reliably suppressed. Any damping apparatuses 26 on contact rails 23 and/or on the guiding devices 21, 22 should therefore be designed to be relatively rigid in comparison to the spring-loaded suspension (e.g. the spring units 20) of the conveying body K on the suspension 17. A sliding lining that has certain spring/damping properties could also be used for the slide rail.
As shown in
As has already been explained, the conveying body K of the cableway vehicle 5 is spring-loaded, for example by means of at least one suspension 20, i.e. is attached to the suspension 17 so that it is able to swing, in order to increase the comfort for the passengers during the journey. In the example shown, four spring units 20 are arranged between the suspension 17 and the conveying body K (the cable car), as can be seen in
In the one-sided variant, the conveying body K is pressed downward on one side relative to the suspension 17 by the cooperation of the contact rail 23 with the first guiding device 22 of the cableway station 2. As a result, the spring units 20 are decompressed on the corresponding side and thereby prestressed. The spring units 20 on the corresponding other side are correspondingly compressed because the conveying body K on this side moves upward relative to the suspension 17 due to a torque generated by the guiding force. In the example shown according to
In the two-sided variant, the conveying body K is pressed downward on both sides relative to the suspension 17 by the cooperation of the contact rails 23 with the ceiling guide rails 22a of the cableway station 2, said contact rails being spaced apart in the transverse direction. As a result, the spring units 20 are decompressed on both sides and thereby prestressed. The ceiling guide rails 22a and the contact rails 23 in
A first guiding portion FAa is provided in the unloading region A, and a second guiding portion FAb is provided in the loading region E. The guiding portions FAa, FAb are designed in this case according to the first embodiment, i.e. each have a one-sided stationary first guiding device 22 and a stationary second guiding device 21 arranged on one side, as explained with reference to
A plurality of rollers 25 is arranged in each case one behind the other in the direction of movement on both ceiling guide rails 22a.1, 22a.2, which rollers cooperate with the contact rail 23 of the cableway vehicle 5 located in the corresponding guiding portion FAa, FAb, in particular rolls thereon. As a result, the corresponding cableway vehicle 5 is pressed in the direction of or against the floor guide rail 21a.1, 21a.2, as described. The ceiling guide rails 22a.1, 22a.2 run parallel to the corresponding platform 6, with the first ceiling guide rail 22a.1 extending into the curved region and correspondingly having a curvature. As indicated by the dashed line between the two ceiling guide rails 22a.1, 22a.2 in
The embodiments described with reference to
Number | Date | Country | Kind |
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A50140/2020 | Feb 2020 | AT | national |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2021/054484 | 2/24/2021 | WO |