JPH0558277A - Mobile aerial cableway - Google Patents

Abstract

PURPOSE:To clarify the construction of an aerial cableway relating to a big- scaled mobile aerial cableway proposed as a new transportation system particularly relating to an aerial cableway for making a carrier mobile at high speed and moreover safely under suspension, and particularly to a mobile aerial cableway which can freely carry out absorption of vibration by crosswind, etc., prevention of sharp bend in a path and a branch/change/confluence, etc., of a path. CONSTITUTION:A mobile aerial cableway is characterized in provision of supporting towers 10 set at fixed intervals main cables 20 more than two pieces stretched parallel between these supporting towers 10, connecting beams 30 attached nearly perpendicularly to these main cables 20 through damping mechanisms at fixed intervals and continuously, a carrier 50 suspended, and plural tracks 40 arranged on the lower surface of the connecting beams 30, and also characterized in that the connecting beams 30 are suspended by stiffening cables 22 hanging from the main cables 20, near the supporting towers 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-scale self-propelled aerial cableway proposed as a new transportation system, and in particular, an aerial cableway for allowing a carrier to be self-propelled in a suspended state at high speed and safely. Is to clarify the structure of.

[0002]

2. Description of the Related Art The movement of people and goods over long distances is increasing day by day, but it is very difficult to construct new highways and railways due to rising land prices and environmental problems. It has become. Therefore, a new transportation system that replaces the conventional railways and motorways is being sought. Among them, there is an idea of a new transportation system with an aerial cableway, in which support towers are set up at regular intervals and the support towers are connected by cables as a transportation means.

Conventionally, ropeways, ski lifts, etc. are widely known as aerial cableways, and a ropeway suspends a carrier (car) from a cable (branch) laid between support towers, and another cable is used. It is a method of towing with a lift, and a lift is a method of carrying by directly hanging a carrier on an overhead cable (supporting line) that makes a circular motion, but it is used for leveling land and building bridges like roads and railroads. It is not necessary, and it is suitable as a transportation system on steep slopes, but the main purpose was to transport between relatively short fixed points, so it could be used as a large-scale new transportation system connecting cities. There are various obstacles and it is difficult to transfer technology.

Therefore, JP-A-62-244902 and 63-501 are used.
No. 63-502, No. 63-503, JP-A No. 1-160774, No. 1-
A new transportation system using an aerial cableway is proposed in Japanese Patent No. 164671 and the like.

[0005]

[Problems to be Solved by the Invention] When the overhead cableway is used as a transportation system for a long distance, the construction cost is
Many problems such as measures against wind and vibration, high-speed running performance, branching of cableway and change of running path must be solved, and not all of them have been solved by the technology described in the above publication.

For example, Japanese Patent Laying-Open No. 1-164671 (see FIG. 5) proposes a structure in which a stiffening cable is suspended from a support cable by a hanger, and a track is suspended from the stiffening cable. Lateral stiffening of the track itself becomes necessary, and the weight of the entire track becomes heavy. Also, when lateral rigidity cannot be expected for the track itself, resistance to external stress, especially cross wind, etc. However, the track becomes deformed, twisted, and vibrated greatly, and a large amount of tension is applied to the track itself, which leaves serious problems for its durability and safety.

Furthermore, in the support tower portion, a cable (track)
Since the lateral movement of the cable is restricted, if the cable (track) bends in either direction by the external force from the lateral direction, the track will be broken at the support tower, and the track will continue. As a result, the high speed running may be difficult.

In addition, it is difficult to curve the track,
Since one track is provided by one support cable, it is weak against cross winds, it is not possible to branch or join the tracks in the air, and vertical reinforcement is more than necessary because the external force concentrates on the member to restrain the deformation of the cable. There is a problem that the weight of the cable becomes heavy, the method of tensioning the cable and the method of suspending the track are complicated and construction is difficult, etc., and the aerial cableway is realized as a new transportation system. There are many problems to be solved.

In view of the above, the present invention aims to realize an aerial cableway as a new transportation system connecting long distances.
The main purpose is to solve some of the problems described above.

[0010]

The self-propelled aerial cableway according to the present invention includes support towers arranged at regular intervals, two or more main cables stretched in parallel between the support towers, and A connecting beam that is continuously attached to the main cable at a constant interval in a substantially right angle state via a damping mechanism, and a plurality of tracks that are used to suspend the carrier and that are arranged on the lower surface of the connecting beam. , Or in the vicinity of the support tower, the connecting beam is suspended by a stiffening cable suspended from the main cable.

[0011]

DETAILED DESCRIPTION OF THE INVENTION The present invention described above will be described in more detail with reference to the embodiments shown in the accompanying drawings.

In FIG. 1, 10 is a support tower, and 20
Is a main cable laid between the support towers 10, 30 is a connecting beam attached to the main cable 20, 40 is a track fixed to the lower surface of the connecting beam 30, and 50 is a carrier.

The main cable 20 has a plurality of two or more arranged in parallel, and the connecting beam 30 is attached to the main cable 20 at a right angle. Connection beam 3
The part where 0 and the main cable 20 are in contact with each other has a pin-jointed damping mechanism so that the moment is not transmitted from the main cable 20 to the connecting beam 30.

The track 40 is arranged in parallel with the main cable 20 with the connecting beam 30 as a fulcrum, but in the span between the connecting beams 30, the track 40 itself has sufficient strength and rigidity against a dynamic load. .. Note that the rigidity of the track 40 in the length direction is smaller than the rigidity of the main cable 20 in the length direction, or the rigidity of the main cable 20 in the length direction is
It is assumed that the rigidity is greater than the rigidity of the track 40 in the length direction, and the track 40 does not bend and yield due to the deflection of the cable due to a dynamic load or the like.

The tracks 40 connecting the connecting beams 30 do not necessarily need to be continuously fixed to each other at the portions of the connecting beams 30. In such a mode, the carrier 5
For smooth running of 0, it is also preferable to interpose an independent track connecting member at the connecting portion of the track 40.

As shown in FIG. 2, the connecting beam 30 is directly attached to the main cable 20 at an intermediate portion between the supporting towers 10, but as shown in FIG. In order to maintain the continuity of the above, the stiffening cable 22 is suspended from the main cable 20 by the suspension cable 21, and the connecting beam 30 is supported thereby. With this configuration, in the vicinity of the support tower 10, the vertical and horizontal displacements of the connecting beam 30 are suppressed by the stiffening cable 22, and the track 40 attached to the connecting beam 30 has an upward convex arch. It is fixed by applying tension so that it becomes a linear shape of the mold, and continuity is maintained as a track that allows continuous running. Further, since the stiffening cable 22 bears the tension due to the external force such as the side wind, the tension of the side wind is not directly applied to the track 40.

Assuming that an external stress due to a crosswind or the like is applied to the entire length of the main cable 20, its dynamic model is as shown in FIG. The stress applied to each cross section of the main cable 20 is
The resultant force Y of the own weight W and the lateral wind stress P is the angle formed by Y with the vertical line, which is the rotation angle of the entire main cable 20 about the straight line X connecting the cable support points at the top of the support tower 10. When the main cable 20 having a flexure receives a cross wind, each main cable 20 makes an oscillating motion about X in the above model, but the main cables 20 pin-joined to the connecting beam 30 are always the same. Since the phase is displaced, the connecting beam 30 is always kept horizontal. Also, the resultant force Y with cross wind
Since the tension of the main cable 20 bears, the track 40 is not stressed.

Further, regarding the bending of the main cable 20 in the left-right direction, the curve of the track 40 having an upwardly convex camber in the support tower 10 section is Since the connecting beam 30 is not constrained in the horizontal left-right direction, the track 40 can ensure a gentle curve.

Further, even if the horizontal deflection of the main cable 20 on the next side across the support tower 10 is in the opposite direction, the suspension cable 21 follows the movement thereof, so that the track 40 secures a gentle curve. be able to.

The above-described movement (vibration) of the main cable 20.
In order to correspond to the above, the joint portion between the connecting beam 30 and the main cable 20 is rotated about the line parallel to the straight line X passing through the intersection and connecting the supporting point of the main cable 20 in the supporting tower 10. It has a pin-joint structure that has a damping function against movement. An example of such a joint structure is shown in FIGS. 5 and 6, and the connecting beam 30 and the main cable 20 are rotatably fixed like a so-called bearing mechanism. That is, 31
Is a cover band that is attached to the main cable 20 in a state of being fitted therein, and has a mechanism that is arranged inside a rotary cylinder 32 fixed to the connecting beam 30 side through a damper member 33 such as grease. .. Of course, a bearing structure in which a bearing is enclosed may be adopted, and various mechanisms can be adopted.

The damping mechanism described above suppresses periodic vibrations of the entire track due to crosswinds and earthquakes, and also has a damping function for local vibrations and independent vibrations and vibrations of the main cable 20, It becomes possible to secure the stability of the orbit.

If the main cable 20 is extremely bent on one side and the main cable 20 is not rotatable about the connecting beam 30, the connecting beam 30 will have a twisting moment. Therefore, in order to absorb such a twisting moment, it is conceivable that the rotational movement of the main cable 20 around the connecting beam 30 is not restricted. As a concrete mechanism, the connecting beam 3
The rotation hinge may be provided on one side, both ends, or the center of 0. Further, if a damping function is added also to this rotary hinge portion, the damping ability of the entire cableway against vibration etc. is further improved. On the other hand, it is conceivable that the rotary hinge as described above is not provided, and the moment about the connecting beam 30 is received by the rigidity of the connecting beam 30 and the main cable 20 to prevent the track 40 from being deformed.

In the conventional cableway, since the main cable itself is a running path (track), the tension for supporting the entire load is applied to the cross section of the main cable. Therefore, it was impossible to branch or join the runway (orbit) that requires cutting of the cable, or to curve or meander the runway.

On the other hand, in the cableway of the present invention, the track is arranged on the connecting beam 30 attached to the main cable 20,
Since the track itself is not loaded with the tension that supports the cableway, the track can be cut and joined freely. Therefore, the bending and meandering of the track can be freely performed within the range of the connecting beam 30, and the change, branching, switching, and joining of the running paths can be freely performed.

Further, if the track 40 is not only directly attached to the lower surface of the connecting beam 30 but also is attached in a suspended state by an auxiliary cable or an auxiliary member, the aerial cableway at a high position and the ground general road can be connected. Will also be possible.

Further, the track 40 is suspended on the main cable 20 via the connecting beam 30 in the middle, but in the vicinity of the support tower 10, as described above, the connecting cable 30 is connected by the hanging cable 21. By adopting not only the structure for suspending the vehicle but also the structure for suspending from the support tower 10 itself or the auxiliary tower, it is possible to configure a traveling route changing portion such as an interchange on a highway.

Although various modes can be adopted as the carrier 50, the necessary structure includes a suspension mechanism, a driving means,
Examples include control or control means, storage areas for people and goods, and safety mechanisms. In addition, the suspension mechanism of the carrier 50 uses the track 4
Although it is associated with a specific configuration of 0, various designs are possible. As the driving means, it is possible to adopt a system using an internal combustion engine, a system using an electric motor, a magnetic system, or the like. Further, the carrier 50 can be designed in various ways, from a so-called basket for placing a person at the center such as a gondola of a conventional cable car to one for accommodating or suspending an ordinary passenger car etc. Is.

[0028]

EFFECTS OF THE INVENTION According to the present invention, the absorption of vibrations due to cross winds is good, and there is no sharp break in the track (orbit) near the support tower, so stable high-speed running is possible. It is guaranteed, and because it is configured to freely branch, change, merge, etc. of the track (track), it contributes to the realization of an aerial cableway as a new transportation system, The problems mentioned above will be solved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing the whole of the present invention.

FIG. 2 is a schematic sectional view of an intermediate portion.

FIG. 3 is a schematic cross-sectional view in the vicinity of a supporting tower section.

[Fig. 4] Stress model diagram

FIG. 5 is a sectional view of a damping mechanism.

FIG. 6 is a sectional view of a damping mechanism.

[Explanation of symbols]

 10-Support tower 20-Main cable 21-Suspension cable 22-Stiffening cable 30-Connecting beam 31-Cover band 32-Rotating part cylinder 33-Damper member 40-Track 50-Carrier

Claims (2)

[Claims] 1. A support tower arranged at a constant interval, two or more main cables stretched in parallel between the support towers, and a substantially right-angled state with respect to the main cable via a damping mechanism. A self-propelled aerial cableway, which comprises a connecting beam continuously attached at a fixed interval, and a plurality of tracks on which a carrier is suspended and which is arranged on the lower surface of the connecting beam. 2. The self-propelled aerial cableway according to claim 1, wherein the connection beam is suspended near the support tower by a stiffening cable suspended from the main cable.