EP2792566A2 - Cable catchment device for single cable cableways - Google Patents

Abstract

A rope catching device for monorail systems for lateral attachment in the area of rope support roller rockers (19) has a first rope catcher (3 ') attachable to a luffing support beam (18), in which the suspension cable (1) of the monocarpet is trappable in a derailment of the rope support rollers (20) , The first rope catcher (3 ') is formed at the free end of a carrier trunk (2). In installation position, a second rope catcher (3 ") is below the first rope catcher (3 ') arranged in the direction of fall of the support cable (1) of the Seiltragrollenwippe (19) further out.

Description

The present invention relates to a cable trapping device for monorail webs for lateral attachment in the field of Seiltragrollenwippen on a rocker beam, with a first rope trap, in which the support cable of the monocable is trappable in a derailment of the rope support rollers, wherein the first cable tray has a carrier trunk on the free End of the first rope catcher is formed.

Under ropeways are meant ropeways, at the single, circumferential rope, the transport are held clamped. According to the means of transport such cable cars are referred to as gondola or chairlifts. These in turn are subdivided into couplable and fixed gondola or chairlifts. In all versions, the gondolas or armchairs are clamped to the circulating rope. In the case of the couplable cable cars, the means of transport in the area of the valley and mountain stations are each detached from the circulating cable. As a result, the relative speed of the gondolas, or armchairs for boarding the passengers is reduced.

Despite built-in safety measures, funicular ropeways are unfortunately always recurrent. These occur in particular during rocking movements of the gondolas or armchairs. These rocking movements can occur due to strong crosswinds or caused by the passengers rocking movements. Accordingly, these derailments do not happen in the area of the valley or mountain stations, but in the area of the pylons, where the circulating rope on the rope rollers running. These rope carrying rollers are held in rope roller bearings. Derailed the circulating rope from the rope rollers, so a full braking of the rotating rope is triggered. So that the circulating rope does not fall to the ground, are on the side of the rocker support beams of the rope roller bearings on the Removed from the support pole side ropes mounted on the derailed circumferential rope falls.

However, it has been proven that it is by no means certain that the derailed rope in the mentioned first rope catcher also remains lying. In the derailment and the jerky voltage change, together with the superposition of the rapid braking of the support cable, it comes in the support cable in addition to the lateral vibrations by the oscillating gondolas, or armchairs to a superimposed vertical vibration by the forces mentioned. Due to this superimposition of the vibrations, it also happens time and again that the circulating rope jumps out of the first rope catcher. Solving this problem can not be achieved with obvious means. Just by the shape of the first rope catcher can be achieved a certain improvement, but this would hardly be enough. A significant increase in the rope catcher is not possible in the given space. From the rope clamp, which runs in a certain arc, the support arm, on which the gondola, or the chair hangs, projects in a predetermined inclination outwards and downwards. Since a certain pendulum movement of the nacelle, or armchair is always given and must also be approved accordingly, it must be ensured that within this range of permissible oscillation of the arm does not hit the rope catcher. Corresponding constructions are also designed so that a deflection of 0.35 rad from the normal position in the direction of the supporting pulleys is allowed. However, as always with such systems, a safety margin is included. In most cases, an impact of the support arm on the rope catcher will occur only at a swing of above 0.35 rad.

Rope catching devices for single-cable cars according to the preamble of claim 1, are known in the market and belong to the standard equipment practically in all single-cable cars.

The common rope trays of the known rope catching devices are due to the above-mentioned space and regulations to be complied relatively small and trough-shaped from the shape her with rounded support surface.

However, because the vibrations occurring in the event of a derailment are very complex superimposed spatial oscillations that occur as a result of already existing natural oscillations caused by wind gusts and / or passenger movements in connection with the jerky stopping due to an emergency stop, this is by no means always true Ensures that the derailed suspension rope also remains as desired in the designated rope trays quiet and safe. It is quite possible that the catching rope to be caught falls initially as intended in the trough-shaped bearing surface of the cable tray, but it performs more or less uncontrollable further sliding movements and even jumps out again because of the rounded support surface. Simulations have shown that the occurring or expected vibrations can last a relatively long time, because no fast effective and sufficient damping is available. An effective vibration damping would, of course, mean that the amplitudes of the vibrations occurring decay rapidly, or at least fall rapidly below dangerously appearing limit values. Of course, it goes without saying that a complete vibration damping, at least as long as individual vibration-triggering causes, such as wind gusts, stop, is not achievable.

In any case, it is clear that an effective vibration damping of the suspension rope in the case of derailment is still a serious problem. The well-known rule-compliant rope trays seem to make a particularly effective contribution to vibration damping in the event of derailment.

It is therefore the object of the present rope catching device to show a solution that realizes increased security to catch the derailed Umlauftragseil as safe as possible at a rope derailment even when the vibrations described above, and to achieve improved vibration damping.

This object is achieved by a rope catching device of the type mentioned above in that, in addition to the first rope catcher, there is at least one second rope catcher, which is arranged further outwards and downwards in the direction of fall of the rope from the cable take-up roll rocker.

The increased safety is achieved by the introduction of the second rope catcher. With further constructive measures, in particular by the introduction of a spring-mounted attachment, it is achieved that Ausspendelungen the nacelle, even if it is in the range of the rope catching device, are not hindered by the second rope catcher.

The likewise desired improvement of the vibration damping behavior is achieved by the special shaping of the first and the second cable tray. Both are namely formed in a respective catching area such that in the event of derailment a lateral three-point support of the carrying cable can take place.

Further advantageous embodiments of the subject invention will become apparent from the dependent claims and their meaning and effect will be explained in the following description with reference to the accompanying drawings.

Fig. 1

eine Frontansicht einer Seilfangschale nach dem bekannten Stand der Technik,

Fig. 2

die Seilfangschale von Fig. 1 in einer Seitenansicht,

Fig. 3

eine bevorzugte Ausführungsform der erfindungsgemässen Seilfangvorrichtung in einer Seitenansicht,

Fig. 4

die Seilfangvorrichtung von Fig. 3 in einer Frontansicht,

Fig. 5

die zweite Seilfangschale der Seilfangvorrichtung von Fig. 3 in einer Draufsicht,

Fig. 6

zeigt die am Wippentragbalken angebrachte Seilfangvorrichtung von Fig. 3 bei Anwesenheit einer Gondel im Wippentragbalkenbereich während des Normalbetriebes,

Fig. 7

zeigt die Situation von Fig. 6 während des Normalbetriebs aber bei einer masteinwärtsseitigen Pendelbewegung der Gondel,

Fig. 8

zeigt die am Wippentragbalken angebrachte Seilfangvorrichtung von Fig. 3 bei Anwesenheit einer Gondel im Wippentragbalkenbereich während eines Entgleisungsfalles, bei dem das entgleiste Tragseil in die erste Seilfangschale gesprungen und dort gehalten ist.

In the drawing, an embodiment of the inventive rope catching device is shown in detail and shown in different stages of operation. It shows:

Fig. 1

a front view of a rope trap according to the known prior art,

Fig. 2

the rope catcher of Fig. 1 in a side view,

Fig. 3

a preferred embodiment of the inventive rope catching device in a side view,

Fig. 4

the rope catching device of Fig. 3 in a front view,

Fig. 5

the second rope catcher of the rope catching device of Fig. 3 in a plan view,

Fig. 6

shows the attached to the rocker beam barring device of Fig. 3 in the presence of a gondola in the rocker support area during normal operation,

Fig. 7

shows the situation of Fig. 6 during normal operation but with a masteinwärtsseitige pendulum movement of the nacelle,

Fig. 8

shows the attached to the rocker beam barring device of Fig. 3 in the presence of a gondola in the trough support beam area during a derailment case in which the derailed suspension rope jumped into the first rope catcher and held there.

The Figures 1 and 2 show in a schematic representation of a cable tray for single-cable cars according to the known prior art, namely in a front view and in a side view. Rope trays of this type become laterally in the area of rope roller bearings on a rocker beam attached and they serve to catch the suspension rope 1 in case of derailment and to hold. This is in the Fig. 1 shown schematically. Here, the actual rope catcher 3 is formed on a support trunk 2, which in turn is pivotally connected to the rocker support beam (not shown).

The other figures relate to the present invention.

The Fig. 3 shows a preferred embodiment of the inventive rope catching device with a first and a second rope catcher 3 ', 3 "in a side view.Also here, the first rope catcher on a support trunk 2', at its free upper end, the first rope catcher 3 'is formed , So as shown, below the first rope catcher 3 ', the second rope catcher 3 "is arranged, which in the direction of fall of the rope from the Seiltragrollenwippe further out (see also the Fig. 6-8 ).

The second rope catcher 3 "is pivotally mounted on the support trunk 2 'on a support member 4. In fact, both rope catchers 3', 3" are pivotally connected to the rocker support beam via a bolt connection 5, the pivot axis being substantially horizontal and perpendicular to the direction of travel of the support cable.

The second cable tray 3 "is linearly displaceable and arranged on the support member 4, wherein the linear displacement direction V is substantially horizontal and perpendicular to the direction of the support cable 1. In this case, the second cable tray 3" is screwed onto a slide bearing piece 6, in the direction of displacement in the support member 4 is guided linearly and is cushioned by a compression spring 7.

For clarification is in the Fig. 3 the supporting cable 1 is shown in positions in which, in the case of derailment, it is in the first or the second cable trays 3 ', Due to the shapes (chamfers) of the first and the second cable trays 3 ', 3 ", it is to be expected that this takes place in the illustrated catching areas 8', 8" the support cable 1 is in each case in a three-point support in the respective cable tray (see also the comments below).

Furthermore, from the Fig. 3 it can be seen that a vertically projecting protective rail 9 is attached to the first cable tray 3 'below the catch area 8' for the cable 1. In addition, the second cable tray 3 "has an outwardly and downwardly inclined guide surface 10", which protrudes in the non-deflected state of the second cable tray 3 "into an area which lies under the protective rail 9. In fact, the protective rail 9 and Guide surface 10 "dimensioned so that the maximum distance A between the guard rail 9 and the guide surface 10" prevents passage of the support rope 1 in case of derailment 'Can be maintained, the carrying cable can not penetrate into the space, because otherwise a nondestructive passage through a rope clamp (to which the support arm is attached to the gondola) would no longer be possible.

Furthermore, from the Fig. 3 It can also be seen that the first and the second cable trays 3 ', 3 "each have an approximately vertical outer stop wall 11', 11" with an upper and inwardly directed bend 12 ', 12 ", such that each cable tray 3', 3 "in cooperation with a) of the respective support surface 13 ', 13" for the support cable 1, b) of the stop wall 11', 11 "and c) of the bend 12 ', 12" respectively forms a three - point support for the support cable first rope catcher 3 'corresponding support points 14 of the three-point support are located.

Finally is from the Fig. 3 it can be seen that the outer stop wall 11 "of the second cable tray 3" is inclined more inwardly than the outer stop wall 11 'of the first cable tray 3'. This should be better taken into account when touching the suspension with the support arm 21, because the contact is more flat (see also Fig. 7 ). Both stop walls 11 ', 11 "but are designed so that the height of the stop wall projects beyond the diameter of the supporting cable 1 in a slight but defined measure.

In accordance with the regulations, cable lugs must be designed in such a way that it is possible to pass through terminals through good insertion and favorable position of the cable in the cable catch. By suitable shaping and dimensioning of lateral guide surfaces 15 and lateral guide cheeks 16 (partially visible in FIGS FIGS. 4 and 5 ) this is ensured, however, this subject is not the subject of the present invention and will therefore not be further elaborated below. The same applies to cases in which the gondola deflections occur during normal operation of the monorail and where the laterally projecting second rope trays 3 '' must not constitute an obstacle to the traveling motion of the gondolas This is also made possible by suitable shaping and dimensioning of the lateral guide surfaces 15 with chamfers (FIGS. see also Fig. 5 ), but also this subject matter is not the subject of the present invention and will therefore not be further elaborated below.

The Fig. 4 shows the rope catching device of Fig. 3 in a front view. In principle, it can be seen that the two rope trays 3 ', 3 "are of the same shape as far as the guiding and supporting surfaces for the carrying cable are concerned, and both are also rotatable about the previously mentioned bolt connection 5. For clarification, the protective rail 9 is in FIG omitted from this illustration.

The Fig. 5 shows the second rope catcher of the rope catching device of Fig. 3 respectively. Fig. 4 alone in a plan view. To further clarify the sliding bearing piece 6 and the position of the compression spring 7 are located. In addition, the distance between the second catching pan 3 "can be positioned by the support arm 21 of the suspension by means of an adjusting bolt 17. Thus, it can be determined with the adjusting bolt 17 how far the second catching pan 3" laterally protrudes from the supporting mast. Furthermore, both the first and the second catch tray 3 ', 3 "be provided with suitable recesses 23 to reduce the weight, however, without affecting the required strength.

The following figures serve to illustrate different operating situations.

The Fig. 6 shows the attached to a rocker beam 18 rope catching device of Fig. 3 in the presence of a nacelle in the rocker support area during normal operation. The support cable 1 is properly on rope support rollers 20 which in turn are arranged on a Seiltragrollenwippe 19 on a rocker support beam 18. The rope catching device with the first and the second catching bowl 3 ', 3 "is arranged laterally adjacent to the cable carrying rollers 20 and pivotally connected to the rocker support bar 18 by means of said bolt connection 5. In this installation position, therefore, the second rope catcher 3 is below the first rope catcher 3'"arranged, in such a way that the second rope catcher 3" (in derailment case) in the direction of fall of the rope from the Seiltragrollenwippe further out.This is to ensure that even a falling out of the first rope catcher 3 'supporting rope 1 still collected safely can be.

In this state, ie in the presence of a gondola in the rocker support during normal operation in which no or only slight oscillations or Ausstoßelungen the nacelle take place, the space is always such that the support arm 21 to which the nacelle hangs, with distance and non-contact can slip past the rope catching device. In the example shown, it is a detachable circulating cable car, so a monocable in which the gondolas or chairs with a (each at the valley and top station) detachable cable clamping device 22 are attached to the support cable 1.

The Fig. 7 shows the situation of Fig. 6 during normal operation but with a masteinwärtsseitige pendulum movement of the gondola of about 0.35 rad. This pendulum motion is relative to the position according to Fig. 6 to see. It can be clearly seen here that the support arm 21 touches the stop wall 11 "of the second rope catcher 3" at a contact point K. Because the second rope catcher 3 "but in the direction of displacement V is linearly displaceable and resiliently arranged on the support member 4, the second cable tray 3" is thereby pressed only resilient masteinwärts and can then return under the influence of the compression spring 7 back to the initial state. Thus, no damage occurs and nevertheless an increased safety in derailment cases can be achieved by the presence of a second rope catcher 3. Thus, the regulations for single-web lifts are met, namely that a deflection of 0.20 rad on the rope support rollers 21 and on the other hand a Stabilization of 0.35 rad between the rope rollers is always guaranteed.

The Fig. 8 Finally shows the attached to the rocker beam barring device of Fig. 3 in the presence of a nacelle in the trough support beam area during a derailment case, in a situation in which the derailed suspension cable 1 has fallen into the first cable trays 3 'and held there. It is assumed here only in addition that occurred at the derailment vibrations of the supporting rope have come to rest again. However, it is clearly recognizable that even continued pendulum movements of the nacelle in this situation should no longer pose a problem in terms of space.

Basically, the specific solution with the linearly displaceable and einfedernd arranged on the support member rope catcher course also be used in single-web, where between the support arm and the rope rollers only very little space is available, or where the available space only for a single rope catcher sufficient. Even in such cases, the collection area available in the event of derailment can be increased, which, of course, also improves safety here. Likewise, in these cases, the principle can be applied with the three-point support in the rope catcher.

List of reference numerals:

1

supporting cable

2

carrier strain

3

Rope catcher

3 ', 3 "

first and second rope catcher

4

supporting part

5

bolt connection

6

sliding bearing piece

7

compression spring

8 ', 8 "

first and second catch area

9

guard rail

10 ', 10 "

guide surfaces

11 ', 11 "

stop walls

12 ', 12 "

offsets

13 ', 13 "

support surfaces

14

Support points (the three-point support)

15

lateral guide surfaces

16

lateral guide cheeks

17

adjusting

18

Rocker stringers

19

Cable carrying sheave rocker

20

Cable carrying sheave

21

Beam

22

Cable clamp

23

recesses

A

distance

K

contact point

V

shift direction

Claims (12)

Rope catching device for monorail webs for lateral attachment in the area of rope support roller rockers (19) on a luffing support beam (18), with a first rope catcher (3 '), in which the carrying cable (1) of the monocable is trappable in a derailment of the rope support rollers (20), wherein the first cable tray (3 ') has a carrier trunk (2), on the free end of the first cable tray (3') is formed, characterized in that in installation position below the first cable tray (3 ') at least one second cable tray (3 "). ) is arranged, which is in the direction of fall of the support cable (1) of the Seiltragrollenwippe (19) further out. Rope catching device according to claim 1, characterized in that the second rope catcher (3 ") on a support member (4) is pivotally mounted on the carrier trunk (2), wherein the pivot axis extends substantially horizontally and at right angles to the direction of the support cable (1). Rope catching device according to claim 2, characterized in that the second rope catcher (3 ") is arranged linearly displaceable and springing on the support part (4), wherein the linear displacement direction (V) extends substantially horizontally and at right angles to the direction of the support cable (1). Rope catching device according to claim 3, characterized in that the second rope catcher (3 ") is screwed onto a slide bearing piece (6) which is linearly guided in the direction of displacement (V) in the supporting part (4) and cushioned by a compression spring (7). Rope catching device according to one of the claims 1 to 4, characterized in that on the first rope catcher (3 ') below a catching area (8') for the supporting cable (1) a vertically projecting protective rail (9) is mounted. Rope catching device according to claim 5, characterized in that the second rope catcher (3 ") has an outwardly and downwardly inclined guide surface (10") which protrudes in the non-deflected state of the second rope catcher into an area under the protective rail (10). 9). Rope catching device according to claim 5 and 6, characterized in that the protective rail (9) and the guide surface (10 ") are dimensioned so that the maximum distance (A) between the protective rail (9) and the guide surface (10") is a passage of the Tragseils (1) impossible in the event of derailment. Rope catching device according to one of the claims 1 to 7, characterized in that the first and the second cable trays (3 ', 3 ") have an approximately vertical outer stop wall (11', 11") with an upper and inwardly directed bend (12 ', 12 "), such that each cable tray (3 ', 3") in cooperation with the support surface (13', 13 ") for the support cable, the stop wall (11 ', 11") and the bend (12', 12 ") in each case forms a three-point support with support points (14) for the supporting cable (1). Rope catching device according to claim 8, characterized in that the outer stop wall (11 ") of the second cable tray (3") is inclined more inwardly than the outer stop wall (11 ') of the first cable tray (3'). Rope catching device according to claim 8 or 9, characterized in that the height of the stop wall (11 ', 11 ") projects beyond the diameter of the carrying cable (1) to a defined extent. Rope catching device according to claim 3 or 4, characterized in that the second rope catcher (3 ") in the displacement direction (V) by means of an adjusting bolt (17) is positionable. Rope catching device according to one of the claims 1 to 11, characterized in that the cable trays (3 ', 3 ") have recesses (23).

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