JPH01160774A - Cable suspending type railway - Google Patents

Abstract

PURPOSE:To eliminate an excessive deflecting curve from a structure in a span, by coupling a restiffening cable having an upward camber to a hanger suspending a member below a support cable so as to support track rails by the restiffening cable. CONSTITUTION:A restiffening cable 12 having an upward camber is coupled to a hanger 11 coupled to a support cable 10 so that a tension is applied always to the hanger 11, and accordingly, the rigidity of the entire structure is enhanced, resulting in elimination of an excessive deflection. Further, a vehicle 17 is towed by an endless loop cable 30 so that the vehicle can climb a steep slope without hindrance. Further, deceleration and acceleration of the vehicle in the vicinity of a station and conveyance of the vehicle within the station, are made by a drive means other than the loop cable 30, and accordingly, the vehicle 17 is disengaged from the loop cable 30 in the vicinity of the station 17, and is decelerated and stopped by the drive means. Further, upon acceleration, when the speed of the vehicle reaches the speed of the loop cable, a gripping mechanism is actuated so as to engage the vehicle 17 with the loop cable 30.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a track vehicle system, and particularly to a suspended railway using cables as the main structural component to maintain strength and rigidity.

In conventional track vehicle systems, a lightweight track structure is desired from the viewpoint of improving the economic efficiency of construction, and in urban areas, it is desired that overhead structures be as small as possible due to issues such as aesthetics and sunlight. From this point of view, the ropeway seems fit for purpose. In fact, since the cables of ropeways have elasticity, they have the advantage of low noise during running and good riding comfort. However, in a ropeway, the cables hang down between the pylons, so the vehicle rises when passing the pylons and descends between the pylons, causing vertical movement, making it unsuitable for high-speed travel. In addition, since the cable surface, which is the rolling surface of the wheel, is not flat, there is a disadvantage that the contact pressure of the wheel increases locally, resulting in large wear of the wheel. In addition, it is generally difficult to form a curved path in a ropeway, and the track structure is varied only at the terminal end to form a sharply curved reversal line.

Problems to be Solved by the Invention The present invention solves the above-mentioned problems in the conventional cable suspension railway track structure.

That is, the present invention does not lose the advantages of cable structures, such as lightweight track structures, low construction costs, large spans between support towers, good terrain adaptability, and good riding comfort. The main purpose is to eliminate excessive flexure and curvature of the structure between spans, and to provide sufficient vertical elasticity to the rails even in the tower section. Another object of the present invention is to provide a cable suspension railway with excellent climbing performance.

Means for Solving the Problems The structural feature of the present invention is that a stiffening cable having an upward camber is connected to a hanger that hangs something below the support cable, and the tension of the stiffening cable causes the hanger to be suspended. The purpose is to increase the rigidity of the track structure by constantly applying tension and supporting the track by the stiffening cable.

Furthermore, in the present invention, an endless circulation cable is arranged along the track, the circulation cable is driven by ground equipment, and the vehicle is provided with a grasping mechanism for releasably grasping the circulation cable, so that the circulation cable is always The vehicle will be towed by a circulation cable. At appropriate stations along the track, drive means are provided that act on the vehicle to provide acceleration/deceleration and intra-station transport effects to the vehicle.

According to the above structure of the present invention, the stiffening cable having an upward camber is connected to the hanger connected to the support cable, and tension is constantly applied to the hanger, so that the rigidity of the entire structure is increased. is increased, and excessive deflection can be eliminated. Furthermore, since the vehicle is towed by an endless circulation cable, it can climb steep slopes without any problems. Furthermore, acceleration/deceleration at the station and transportation within the station are performed by a drive means separate from the circulation cable, so near the station the vehicle is disconnected from the circulation cable, and the drive means decelerates and stops the vehicle, and when accelerating. In other words, when the vehicle speed reaches the speed of the circulation cable, the grasping mechanism can be actuated to engage the vehicle with the circulation cable, resulting in efficient vehicle operation.

Example FIG. 1 shows a typical embodiment of the invention.

The track structure shown in the figure has a support cable 10 that is passed between the steel towers 21, and the support cable 10 is bent downward between the steel towers 21. Support cable 10
A downwardly extending hanger 11 is connected at appropriate intervals to the hanger 11, and a stiffening cable 12 having an upward camber or an upwardly convex shape is connected to the lower end of the hanger 11. The stiffening cable 12 is stretched between the steel towers 21 with tension, and the tension acts to constantly apply tension to the hanger 11 and the support cable 10. A track 15 is connected to the stiffening cable 12 via a track hanger 16 . A vehicle 17 suspended on a track 15 runs. A circulation cable 30 is arranged below the track 15 and along the track 15. This circulation cable 30 is arranged endlessly along the reciprocating track 15 and is driven in one direction by ground equipment. The vehicle 17 engages with this circulation cable 30 and is towed.

A general structure with such a structure + SL2 is a steel tower 21
A station part N having a station structure 24 is provided at an appropriate position. The station structure 24 of the station part N has support cables 10 for the track structure.
and one end of each of the stiffening cables 12 are coupled, whereby the track structure is supported by the station structure.

FIG. 2 shows the relationship between the track structure and vehicles, and FIG. 3 shows details of the track 15. The track 15 includes two rails 13, each consisting of a steel running rail piece 13a with an I-shaped cross section and a guide rail piece 26 provided on one side of the running rail piece 13a, arranged in parallel and connected to each other by brackets 14. It consists of A lower end of a truck hanger 16 is coupled to this bracket 14. A linear motor reaction rail conductor 27 is attached to the lower surface of each rail 13. Rail 13
The upper surface of constitutes the running surface.

The vehicle 17 consists of a vehicle body 17a and a bogie frame 18 provided on the upper part of the vehicle body ITa, and the bogie frame 18 supports a pair of running wheels 19 and a pair of guide wheels 20. The running wheels 19 are arranged so as to roll on the upper surfaces of each of the pair of running rail pieces 13, and the guide wheels 20 are arranged so as to roll on the guide surfaces formed on the side surfaces of the guide rail pieces 26. . The bogie frame 18 is provided with a primary coil 25 of a linear induction motor that corresponds to a reaction rail conductor 27 attached to the lower surface of the rail 13. As shown in FIG. 3, the circulation cable 30 is disposed below the bracket 14 of the track 15 along the track 15, and the cable ring 31 for preventing the circulation cable 30 from hanging is attached to the cable ring bracket 32. via bracket 1
It is supported by 4. The bogie frame 18 of the vehicle 17 is provided with a repellent mechanism 33 having a structure known in ropeways and the like, and grips and releases the circulation cable 30 in response to commands from ground equipment. When the anorexia mechanism 33 grips the circulation cable 30, the vehicle 17 is pulled and driven by the circulation cable 30.

4 and 5 show details of the tower section M, in which the support cable 1 passes over the top 52 of the steel tower 21 mentioned above.
0 is stretched, and a floating porcelain 22 is placed in the middle part of the steel tower 21.
is provided. A stiffening cable 12 is fixed to the floating wire 22, and the floating wire 22 is further connected to the support cable 10 by a vertically rigid rod 23. In this example, the rod 23 is connected to the support cable 10 and the floating wire 22 at its upper and lower ends, respectively. That is, the support cable 10 is provided with a bracket 50, and the floating beam 22 is provided with a bracket 51, and the upper and lower ends of the rod are coupled to these brackets. The track 15 is connected to the floating beam 22 via a rigid track hanger 53.

In the general structure, the tension of the stiffening cable 12 acts to constantly apply tension to the hanger 11 and the support cable 10. In the tower section M, a component of the tension of the stiffening cable 12 acts on the rod 23 as a compression reaction. By providing such a stiffening cable 12, the rigidity of the general structure can be dramatically increased. In the tower M, rigidity is provided only by the support cables 10. That is, since the floating katana 22 is vertically connected to the support cable 10 by the rigid rod 28, the floating katana 22 is supported with elasticity in the vertical direction by the vertical elasticity of the support cable 10. The track 15 can also be elastically supported in the vertical direction in the tower section.

Since the support cable IO is fixed to the top 52 of the steel tower 21, its movement in the lateral direction is restrained, but the floating beam 22 is not restrained in the lateral direction. Therefore, a means is required to prevent excessive lateral displacement of the floating cap 22. In this embodiment, as shown in FIG.
9, one end of a transverse rod 28 is pin-coupled to this arm 29, and the other end of the rod 28 is pin-coupled to the steel tower 21. With this configuration, the displacement of the floating rice cake 22 in the vertical direction is not restricted, but the displacement in the lateral direction can be restricted. If the rod 28 is long enough, the floating rod 22 in the length direction of the track can be
displacement can be sufficiently tolerated.

FIG. 6 is a plan view showing an example of a track arrangement. In this example, a pair of tracks 15 are arranged in parallel to form a double track. In the station part N, the track 15 has a circular arc shape with a relatively small radius and forms a turning part. Circulation cable 30
is an endless arrangement that is turned back at the station part N. As mentioned above, the circulation cable 30 is arranged below the track 15, but in FIG. 6, the circulation cable 30 is shown next to the track 15 to make the arrangement easier to understand. Although the circulation cable 30 is arranged along the track 15 in places other than the station part N, the track 15 is curved away from the circulation cable 30 in the station part N.

The reaction rail conductor 27 shown in FIG.
They are not provided along the entire length of the vehicle 5, but are provided only at locations where acceleration, deceleration, and transportation of the vehicle 17 are necessary. That is, as shown in FIG. 6, in the station part N of the turning section, the reaction rails 27 are provided along the entrance and exit parts of the station part N and the track 15 inside the station part N. In addition, a station part N' is provided between the station parts N at both ends, and a reaction rail 27 is arranged along the track 15 also in this station part N'.

Figure 7 shows details of station area N. The circulation cable 30 is looped around a drive wheel 34, which is driven by a ground power plant (not shown). Orbit 15
, a reaction rail 27 of a linear motor is arranged in the section of the station N from point P to point P'. Therefore, the vehicle 17 enters the station area N in the direction of the arrow and points P.
When reaching this point, the anorexia mechanism 33 is released and the circulation cable 30
The engagement is released, and deceleration is applied by the operation of the linear motor. The vehicle 17 stops at an appropriate position at the station mN, for example at a position indicated by S, and allows passengers to get on and off. Then, by linear and one-turn operation, the vehicle is transported along an arcuate reverse curved trajectory and enters the opposite lane. In the opposite lane, vehicle 17 is accelerated by a linear motor and reaches point P
The speed of the circulation cable 30 is reached before reaching the position '. The anorexia mechanism 33 is then actuated to engage the vehicle 17 with the circulation cable 30.

After that, the vehicle 17 is pulled and driven by the circulation cable 30. In order to enable the vehicle 17 to pass through an inverted curve trajectory with a relatively small radius of curvature, it is desirable that the vehicle 17 has a bendable structure as disclosed in Japanese Patent Laid-Open No. 62-244954.

FIG. 8 is a front view showing the arrangement of the receiving cable ring 31 at a position where the track 15 enters an upward slope in the station premises.

Since the circulation cable 30 is bent downward and maintained in its shape, the receiving ring 31 is positioned above the circulation cable 30 and pushes the circulation cable 30 downward. The anorexia mechanism 33 is in a released state and does not interfere with the receiving ring 31.

FIG. 9 shows the middle part of the gradient inside the station. The receiving ring 31 is located below the circulation cable 30 and prevents the circulation cable from hanging down. FIG. 10 shows the arrangement of the receiving cable ring 31 at the transition from an uphill slope to a horizontal road. The receiving ring 31 is located at a high position and supports the upward bending point of the circulation cable 30.

Figure 11 shows the shape of a curved road, and this curved road is
Two curved rails 13 are connected by brackets 14 to form an integrated rail 15, and a pillar 6 is installed above it from the ground.
A curved girder 61, which is a rigid member supported at 0, is provided, and the extension of the support cable 10, which was used as the main structural member on the straight road, is stretched into a polygonal shape (see Fig. 4) that almost matches the curve, and the curved girder 61 is The apex of the polygon is connected to the tip 62 of a swinging member 63 that is pivotally mounted to be swingable only in the tangential direction of the curve,
The intermediate portion A of the side of the polygon formed by the support cable 10 supports the track 15 via the track hanger 16. Further, a receiving ring 31 is supported on the bracket 14 at an appropriate position on the track 15, and the circulation cable 31 is supported on the bracket 14.
0 is guided and supported along the curved path by this cable ring 31. In addition, on a curved road, a reaction rail of a linear motor may be provided on the rail 13, and the vehicle 17 may be driven through the curved road by the linear motor by releasing the anti-erosion mechanism 33.

Effects As described above, in the present invention, a stiffening cable having an upwardly convex camber is coupled to a hanger coupled to a support cable, and arranged so as to constantly apply tension to the hanger and the support cable. As a result, the rigidity of the cable structure, which bears both dead and live loads, is dramatically increased compared to conventional devices, making it possible for vehicles to operate at high speeds. Furthermore, most of the track is traction driven by circulation cables, so it is possible to climb steep slopes without any trouble.

[Brief explanation of the drawing]

FIG. 1 is a side view of a cable suspension railway showing an embodiment of the present invention, FIG. 2 is a front view showing the relationship between the track and the vehicle in the embodiment of the present invention, and FIG. 3 is a track FIG. 4 is a front view showing the details of the structure, FIG. 4 is a side view showing the track structure in the tower section, FIG. 5 is a front view of the part shown in FIG. 4, and FIG. 6 is a plan view showing an example of the track arrangement. Figure 7 is a plan view showing details of the station section in the layout of Figure 6, Figure 8 is a sectional view taken along the line ■-■ in Figure 7, and Figure 9yA is a sectional view taken along the line IX-IX in Figure 7. The sectional view, FIG. 10, is the sectional view taken along the line x-X of FIG.
The figure is a perspective view showing an example of the structure of a curved road. lO...Support cable, 11...Hanger, 12...Stiffening cable, 13...
・Rail, 14...Bracket, 15...
・Trajectory, 16...Truck hanger, 17...
... Vehicle, 21 ... Steel tower, 30 ...
・Circulation cable, 31...Cable ring, 33...
...anorexia mechanism. Figure 2 Figure 8 Figure 9 Figure 17a: Single unit 17a - Single unit

Claims (5)

[Claims] (1) A support cable that is stretched like a catenary between the towers arranged at intervals and supports both dead load and live load, a hanger that hangs things below the support cable, and a hanger that is connected to the hanger and that and a track supported by a track hanger hanging from the stiffening cable, the track having a camber of A vehicle is provided to run along the track, an endless circulation cable driven from the ground is disposed along the track in the track structure, and the vehicle has a grip that releasably grips the circulation cable. 1. A cable suspension railway, characterized in that a station provided along the track is provided with drive means acting on the vehicle to accelerate and decelerate the vehicle and transport the vehicle within the station. (2) The cable system suspension railway according to claim (1), wherein the track has inverted curved tracks at both ends, and the entire cable system suspension railway is configured in a closed loop shape. (3) In the cable suspension railway according to claim (1) or 2, the circulation cable is disposed below the track and along the track, and the circulation cable is provided with a cable to prevent drooping of the circulation cable. Cable suspension railway with wheels. (4) The cable suspension railway according to any one of claims (1) to (3), wherein the drive means is a linear motor device. (5) In the cable suspension railway according to any one of claims (1) to (4), the track is provided with a curved road, and the receiving cable ring is provided along the curved road. is arranged, and the track is provided with a second driving means that acts on the vehicle to drive the vehicle also on the curved road portion.