JPH101903A - Branching device for girder type track - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a branching device which eliminates the need for an auxiliary girder and which is simple in structure and easy to change over main line connection and branch line connection. SOLUTION: This invention relates to a branching device which is provided to transfer vehicles between two parallel tracks and is provided with four movable girder 2, 3, 10 and 11 which are rotatable like the shape of a fan in the plane with the ends of four fixed girder 1, 4, 9 and 12 of the parallel two tracks communicated to the joint areas forming the center of their rotation respectively and crank/lever mechanisms K1, K2, K3 and K4 which can rotate each of these movable girders in the horizontal surface. Each of the movable girders 2, 3, 10 and 11 is provided so that they may be changed over between the main line connection state and the branch line connection state. The positions of the main line connection and the branch line connection to which each of the movable girders 2, 3, 10 and 11 are changed over, are set to a related position which is linearly symmetrical to the line which binds the paired rotary center of each parallel line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branching device for a girder type track used in a straddle type or suspension type monorail, a magnetic levitation type railway, and the like.

[0002]

2. Description of the Related Art The prior art of the present invention will be described by taking a so-called monorail as an example. In general, in order to transfer a vehicle between two-track tracks in which two parallel tracks (double tracks) are laid in parallel, it is necessary to use these tracks. A branching device such as a shissus cross (crossover line) type is provided between the double tracks.

[0003] A conventional shissus cross type branching device is composed of a fixed track and a branch track provided in the middle of the fixed track, and is capable of horizontally turning within a fixed angle range around a fixed girder end of the fixed track as a turning center. A movable girder for orbital branching connected to the vehicle. This movable girder has a state in which movable girder on both sides are continuous so as to form a straight line of one line (main line continuous state), and one movable girder of one line and an opposite side of another line for changing tracks. The movable girder can be switched between a state in which each of the movable girders is turned inward to be continuous (a branch line (transfer line) continuous state). In the art, the continuation of the main line is generally called “localization”, and the continuation of the branch line is generally called “inversion”.

[0004] In the case of the above-mentioned shissus cross type branching device, the track length is different between the continuous state of the main line and the continuous state of the branch line, so that a gap is generated between a pair of movable girders when the branch line is continuous. FIG. 14 illustrates this gap. The branching device provided on the double track orbits M and N is now described.
M1, M3, N1, and N3 are composed of movable girders 201, 202, 203, and 204 having the same orbital length as the center of rotation, and have a linear state (main line continuous state) and an oblique cross state ( (Branch line continuous state). And M in the main line continuous state
The mechanical clearance required to prevent the movement of the apparatus at the position of the N2 point is 2n, and the rotating clearance 2m generated at the point O1 when the vehicle is turned into the continuous state of the branch line is 2m +
Based on the relationship between 2n and the allowable clearance when the vehicle passes, it is possible to consider the appropriateness of the vehicle passing when the branch line is continuous.

The turning gap 2m can be made as small as possible by making the orbital length of the movable girder sufficiently long. However, in an actual apparatus, since a heavy girder structure is to be moved, it is desirable that the orbital length of the movable girder is as short as possible. Therefore, the turning gap 2m is not always small.

If the gap 2m + 2n at the time when the branch line is continuous is large, it is not appropriate to secure a safe and comfortable vehicle to travel. For example, Japanese Patent Application Laid-Open No. Sho 61-242202 discloses that the gap at the time when the branch line is continuous is increased. To compensate, it has been proposed to provide a relatively short pivoting auxiliary girder at the center of the intersection of the chassis cross type branch. In addition, a proposal has been made to provide a movable auxiliary girder that fills the gap by entraining a movable girder that moves to make the branch line continuous (Japanese Patent Application Laid-Open No. Hei 8-20902).
Also, there is a proposal of providing a fork-type gap adjuster (Japanese Utility Model Publication No. 46-14244).

[0007]

However, the conventional sheath cross type branching device described above has the following problems.

For example, a branching device provided with a turning type or movable type auxiliary girder has a complicated structure and operation, frequently causes a failure of the control device, and places a heavy burden on maintenance and inspection. Further, since the position of the auxiliary girder is attached to the track itself or located at the center of the intersection, there is a problem that when maintenance and inspection are required, the work is dangerous.

Further, the Hawk type gap adjuster has a mechanical problem that the gap cannot be sufficiently filled when the length of the gap is large due to the linearity of the track.

An object of the present invention is to solve these conventional problems and to provide a branching device which has a simple structure since no auxiliary girder is required and which can easily switch between continuous main line and continuous branch line.

Another object of the present invention is to provide a branching device capable of improving the traveling speed of a vehicle in both a main line continuous state and a branch line continuous state by making a movable girder constituting a branching device extendable. Is to provide.

[0012]

SUMMARY OF THE INVENTION The features of the invention of the present invention of a branching device for a girder track which achieves the above object are as described in each claim of the claims.

The invention of a branching device for a girder track according to claim 1 of the present application is a branching device provided for a vehicle to switch between parallel two-tracks, and comprises four parallel two-tracks connected to a branch portion. The movable girder is provided with four sets of movable girders that can make a sectoral swing in a horizontal plane with each end of the fixed girder as a center of rotation, and movable girder turning means for swinging each of these movable girders in a horizontal plane. It is provided so that the position can be switched between the main line continuation state and the branch line continuation state by turning, and the position of the main line continuation and the branch line continuation at which each movable girder is switched is determined by connecting the pair of turning centers of the parallel lines. Is set to a line symmetrical relation position with respect to.

In the above description, the parallel two-track trajectory is a trajectory forming a so-called double track. Although the movable girder turning means is not limited, for example, the movable girder may be a rocker (follower).
Can be exemplified.

[0015] The main line connection state means the above-mentioned two lines (double lines).
The normal state in which is formed, the continuous state of the branch line is 2
It refers to the state when the vehicle changes from one line (double track) to the other.

According to the present invention, since the position of the continuation of the main line and the position of the continuation of the branch line are set in a line-symmetric relationship, the trajectory lengths of the two lines (main line and branch line) in the continuous state are the same. There is an advantage that an auxiliary girder required for producing a difference in track length as in the related art becomes unnecessary.

According to a second aspect of the present invention, there is provided a branching device provided for a vehicle to change between parallel two-tracks, wherein ends of four fixed girders of the parallel two-track are connected to a branch portion. Each of the movable girders includes four sets of movable girders capable of rotating in a horizontal plane as a center of rotation, and movable girder turning means for rotating each movable girder in a horizontal plane.
The above-mentioned girder elements are connected so as to be able to bend around the vertical axis, and are provided so that the position can be switched between the continuous state of the main line and the continuous state of the branch line by the turning, and furthermore, the main line continuity in which each movable girder is switched. And the position of the continuation of the branch line is set to a position symmetrical with respect to a line connecting the pair of the turning centers of the parallel lines.

According to the present invention, the movable girder is constituted by a plurality of girder elements which can be bent around the vertical axis, so that the turning part can be limited to a part directly connected to the fixed girder of the movable girder. This has the advantage that the refraction angle of the portion where the movable girders are continuous can be limited to a small value, and abrupt turning of the vehicle direction can be suppressed.

According to a third aspect of the present invention, in the movable girder constituted by the plurality of girder elements, a parallel movement guide means for moving and guiding other girder elements other than the girder element directly connected to the fixed girder is provided. It is characterized by having.

According to the present invention, when the girder element directly connected to the fixed girder is turned, the other girder elements always move in parallel along a fixed route, so that the orbit switching is stabilized.

According to a fourth aspect of the present invention, in the above configuration, the magnitude of the turning angle of the movable movable girder is set to be equal in all four sets of movable girder.

By doing so, the four sets of movable girders and the associated peripheral mechanisms such as turning means can be shared.

According to a fifth aspect of the present invention, in the above-mentioned structure, a pair of concave portions and a pair of convex portions are provided so as to be fitted into the leading ends of a pair of movable girders and a pair of movable girders. The movable girder having either the concave portion or the convex portion is bent upward so that the concave-convex fitting can be attached and detached.

According to the present invention, the position of the continuation of the main line and the position of the continuation of the branch line are set in a line-symmetric relationship, so that the lengths of both orbits in the continuous state of both lines (main line and branch line) are the same. The continuous movable girder can be continued without any gap between the track lines due to the uneven fitting of the tip of the movable girder, and gives an unpleasant vibration to the vehicle when traveling when passing over the track joint etc. Nothing.

According to a sixth aspect of the present invention, there is provided a branching device provided for a vehicle to change between parallel two-tracks, wherein the ends of four fixed girders of the parallel two-tracks connected to the branch portion are connected. Each comprising four sets of movable girders capable of turning in a horizontal plane as a turning center, and movable girder turning means for turning each of these movable girders to switch the position between a main line continuous state and a branch line continuous state; The movable girder is configured by sequentially connecting at least three or more girder elements via a concave / convex fitting portion capable of adjusting the depth of the concave / convex fitting along the orbital direction. Characterized in that a fitting length equalizing means for equalizing is provided.

According to the present invention, when there is a difference between the track lengths in the continuous state of the main line and the branch line, when a gap is generated between the tips of the movable girders that are continuous when the branch line is continuous, Since three or more girder elements are sequentially connected via the concave / convex fitting portion and their concave / convex fitting lengths are equalized by the fitting length equalizing means, the gap is slightly reduced at each concave / convex fitting portion. The trajectory is absorbed one by one and a substantially continuous orbital state can be secured.

[0027] The invention of claim 7 of the present application is provided with a turning retreat means for retreating the other of the parallel movable girders in the direction away from the continuous branch line when one of the parallel movable girders is continuous. It is characterized by the following.

According to the present invention, it is possible to effectively prevent the movable girder in the discontinuous state from interfering with the traveling vehicle when the vehicle travels on the track in the continuous state of the branch line. The separation width can be reduced accordingly.

The invention according to claim 8 of the present application is characterized in that the turning and retreating means is constituted as turning linking means for linking and turning a pair of movable girders in parallel, thereby simplifying and avoiding the mechanism. The reliability of the operation can be increased.

The branching device for a girder track of the present invention is suitably used for a straddle-type or suspension type monorail, a similar straddle-type or suspension type magnetic levitation railway, and the like. 9. The movable girder in the discontinuous state according to claim 7, particularly in a straddle type monorail and a magnetic levitation type railway, since the vehicle body may be relatively large in the width direction of the track and interfere with an adjacent device or the like. The branching device having a configuration in which the vehicle is retracted so as not to interfere with the traveling vehicle is preferably employed.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the drawings.

Embodiment 1 FIGS. 1 to 3 show an example of a schematic configuration of a branching device according to a first embodiment of the present invention. In this drawing, a pair of parallel double-track (two-track) tracks A, In B, each of these orbits has a movable girder 2 and a movable girder 2 constituting a branching device, with each end of the fixed girder 1, 4 (for the A orbit) and 9, 12 (for the B orbit) of the fixed orbit being the turning center. 3 (for A track), 1
0, 11 (for the B orbit) are within a predetermined angle range (2
θ) is provided so as to be able to turn. The connecting portions of the movable girders 2, 3, 10, and 11 with the fixed girders include a connecting structure for rotatably connecting the movable girders about a vertical axis (not shown) with respect to the fixed girders, and a track. Connecting discs 5, 8, 13, 16 for providing a smooth continuous surface are provided, which are provided in a structure which fits into the semicircular recesses of the fixed and movable girders (FIG. 1). A1, A3, B
1, see B3).

Each of the movable girders 2, 3, 10, 11
Are provided with the same orbital length. Of these, the tips of a pair of movable girders 3 and 11 on one side are
15 is provided so as to be able to jump around the hinges 17 and 20, and connecting pins 7 a and 20 a which are fitted to the movable girders 2 and 10 to be described later are provided at the tips of the jumping portions 7 and 15, respectively. The connecting discs 6 and 14 for smoothly continuing the raceway surface are provided.

On the other hand, the other parallel pair of movable girders 2 and 1
At the leading end of the connector 0, connecting pin grooves 7b and 20b which are fitted to the connecting pins 7a and 20a in a concave and convex manner, and a semicircle which is fitted to the connecting discs 6 and 14 for smoothly continuing the raceway surfaces. Fitting portions 18 and 19 are provided.

Each of the movable girders 2, 3, 10, and 11 is provided with a corresponding one of the elongated holes G1 to G4 in the orbital direction provided on each movable girder.
The movable pins 2, 3, 10, 11 are rotated by a predetermined angle (2θ) by rotation of the crank arm by forming a crank / lever mechanism in which the tip pins of the rotary crank arms K1 to K4 are fitted as shown in the drawing. It is provided to be able to.

In this example, A1, A2, and A2 shown in FIG.
The positions of the movable girders that are continuous at points A3 (B1, B2, B3) to form a continuous main line state are points A1 and A3 (point B1).
And B3) (lines A1-A3, B1-B3) are set as symmetrical lines to form an angle θ. Further, the position of the movable girder forming the continuous state of the branch line continuous at the points B1, (A2, B2) and A3 shown in FIG. 2 is determined by the line symmetry line (A1-A3 line, B1-B3 line). ) Is one of the features. As a result, the movable girders 2, 3 (10, 11) are symmetrical with respect to the line of symmetry (the lines A1-A3 and B1-B3) when the main line is continuous and the position when the branch line is continuous. Will make a relationship. Therefore, assuming that the track interval of the double track is L, in the present example apparatus having a movable girder of the same track length, the position for continuous branch line (see FIG. 2) is such that the tip of the movable girder is L / 2 in the middle of the double track. The angle θ is determined so as to be at the position (point P in FIG. 2), and accordingly, the position when the main line is continuous is also determined.

When the continuous orbital state is switched from the state shown in FIG. 1 to the state shown in FIG. 2, the tip jumping parts 7, 15 of the movable girders 3, 11 are flipped up by a flipping mechanism (not shown), and then the movable The girder 3 and the movable girder 10 each have an angle of 2
θ, the flip-up mechanism is returned to the initial state, thereby returning the tip flip-up section 7 of the movable girder 3 to a horizontal position.
The operation is performed so as to secure the continuous state of the movable girders 10 and 3.

For example, in the state where the movable girder 3 is continuous with the movable girder 2 (main line continuous state) and the state where the movable girder 3 is continuous with the movable girder 10 (branch line continuous state), the tip of the jumping-up portion is connected. The angles at which the pins 7a, 20a fit into the connecting pin grooves 7b, 20b of the movable girders 2, 10 differ by 2θ as shown in FIG.
Preferably, b is provided so that the pins 7a, 7a can be received at any of the angles described above to ensure a continuous state, and that the continuity of the raceway surface is ensured by the connecting disk 6. By doing so, the operating part and operating device necessary for switching the movable girder can be limited to the turning and flipping means.

The switching operation of the branching device having such a configuration will be described as a case where the branching device in the continuous state of the main line in FIG. 1 is switched to the continuous state of the branch line in FIG. The flip-up portions 7, 15 are flipped up by a flip-up mechanism (not shown) to disconnect the movable girder (2 and 3, and 10 and 11) in a continuous state on the main line. Next, the movable girders 2 and 11 are not turned, but the movable girders 3 and 10 are turned inward by the rotation of the crank / lever mechanisms K2 and K3 by an angle 2θ, and the flip-up unit 7 of the movable girder 3 is returned to the horizontal posture. The movable beams 3 and 10 are connected (see FIG. 2) to form a continuous branch line in the direction of arrow D in FIG. As a result, the vehicle can transfer from the fixed girder 9 to the fixed girder 4 via the movable girder 3 and 10. In order to change vehicles in the direction of arrow C in FIG. 2, the movable girders 2 and 11 may be turned so as to make the movable girders 2 and 11 continuous in the same manner. In order to return, an operation reverse to the above procedure may be performed.

According to the branching device of the present embodiment having the above-described configuration, the trajectory in the continuous state (localization) of the main line has a linear shape slightly expanding to the outside of the trajectory, but has a bent portion (for example, a continuous portion at the tip of the movable beam). A smooth vehicle traveling state can be ensured only by designing the track length of the movable girder and the magnitude of the turning angle θ so as not to hinder the traveling of the vehicle.

Embodiment 2 In the present embodiment shown in FIGS. 4 and 5, each movable girder connected to a fixed girder so as to be pivotable is constituted by two girder elements connected so as to be able to bend around a vertical axis. This shows an example of a configuration outline of a branching device according to the second aspect of the present invention, which has a structure in which a girder element (a girder element that is not directly connected to a fixed girder) is moved in parallel.

The present embodiment has a different configuration in the above point, but since the basic principle is the same as that of the first embodiment, detailed description of the common members and their functions will be omitted.

4 and 5, 30, 41, 44,
55 is a fixed girder forming a fixed track, and its end (E
1, E5, F1, F5), the turning girder elements 32, 39, 46, 53 of the movable girder about the turning center are connected,
Through the ends (E2, E4, F2, F4) of the turning girder elements, the girder elements 34, 37, 48, 51 that move in parallel are connected rotatably about a vertical axis. A movable girder is constituted by these turning girder elements (for example, 32) and translation girder elements (for example, 34). 31, 33, 38, 4
0, 45, 47, 52 and 54 are the same as those in the first embodiment.
This is the same connection disk as the connection disk 5 described in (1).

In the moving mechanism for switching the movable girder according to the present embodiment, the parallel moving girder element (for example, 34) is configured such that the tip pins of the crank arms of the two sets of crank / lever mechanisms K5 and K6 move in the orbit direction of the parallel moving girder element 34 The swing girder element 32 is to be indirectly (slavely) swiveled through the movement of the parallel moving girder element 34. K7 to K12 are crank / lever mechanisms provided on the parallel moving girder element of each movable girder;
6 to G8 are the same long holes.

In the branching device of the present embodiment, each set of movable girder composed of each girder element for turning and parallel movement is provided with substantially the same track length, and the crank / lever mechanism is provided at 180 °. One of the features is that by rotating, the position of the main line and the position of the branch line are provided symmetrically with the line connecting E1-E5 and F1-F5 as the line of symmetry.

In the present embodiment, the fitting portion for connecting the ends of the parallel-moving girder elements 34, 37, 48, 51 of the movable girder is such that these girder elements move in parallel. The rectangular convex portions 35b, 49b of the flip-up portions 36, 50 provided at the distal ends of the elements 37, 51 can be fitted into the rectangular concave portions 35a, 49a at the distal ends of the parallel moving girder elements 34, 48. Can be.

The switching operation of the branching device having such a configuration will be described as a case where the branching device in the main line continuous state of FIG. 4 is switched to the branch line continuous state of FIG. , 51 jumping parts 36, 5
0 is jumped up by a jumping-up mechanism (not shown) to disconnect the movable girder from the connection of the main line in a continuous state.

Next, the parallel moving girder elements 34, 5 are rotated by the rotation of the crank / lever mechanisms K5, K6 and K11, K12.
1 is translated to an intermediate position of the double track (see point O). Following this, the turning girder elements 32 and 53 turn.
Thereafter, the flip-up unit 50 is returned to the horizontal posture to be in the connected state, and a continuous state of the branch line in the direction of the arrow U in FIG. 4 is formed (see FIG. 5).

According to the branching device of the present embodiment having the above configuration, both the trajectory in the continuous state of the main line (localization) and the trajectory in the continuation of the branch line (inversion) have slight bending at the part of the turning girder element. In any case, since the portion where the movable girder is continuous becomes a straight line in any case, the speed of the passing vehicle can be improved.

Embodiment 3 The present embodiment shown in FIGS. 6 to 13 is an example of a schematic configuration example of a branching device according to the invention of claim 6 in which each of the turning movable girders has a structure capable of expanding and contracting the track length. It is shown.

This embodiment shows an example of a branching device used in a straddle-type magnetic levitation type railway in which each track of a double track has two rails, and each movable girder 7 in a continuous state of the main line shown in FIG.
Since 2, 84, 90 and 92 have substantially the same structure, one movable beam 72 will be described below as an example.

The movable girder 72 is composed of rails 73, 74, 76 as girder elements connected to each other via concave / convex fitting portions 300, 301 whose fitting length is adjustable in the track direction. , Of which the rail 73 is connected to the connecting disk 7
1, the end of the fixed track 70 to which the fixed rail is fixed is connected to the end of the fixed track 70 so as to be able to turn around the turning center.
Reference numeral 75 denotes a fitting length changing / equalizing device for adjusting and equalizing the fitting length of the uneven fitting portion between the rails 73 and 74 and the uneven fitting portion between the rails 74 and 76. This will be described in detail later. Reference numerals 79, 82, and 85 denote rails as girder elements of the movable girder 84, 83 denotes the same fitting length changing / equalizing device as in 75, 86 denotes the same connection disk as in 71, and 87 denotes the same fixed track as in 70. It is.

FIG. 7 shows an outline when the movable girders 72 and 92 are connected to each other and switched to the continuous state of the branch line in the direction of the arrow J in the figure, and the straddle whose outline is indicated by Z in the figure. In consideration of the fact that the vehicle of the magnetic levitation railway projects relatively large in the lateral direction than the track, in this example, the movable girders 84 and 90 on the non-continuous side are respectively retracted outside than when the main line is continuous. It is designed to be moved.

FIG. 8 shows the details of the structure of the fitting length changing / equalizing device 75, in which the leading rail 76 moves back and forth along the guide rail 78 fixed on the movable girder 72 in the track direction. The left and right rails 76
Are provided so as to be moved forward and backward by the operation of a double-acting cylinder device 77 (fixed on a movable girder) in which the tip of the piston is connected to a left and right connecting plate 76a integrating the above. Further, the intermediate rail 74 is integrated by a left and right connecting plate 101, and one end of a short link 75a rotatably supported by a vertical shaft erected on the left and right connecting plate 101 and one end of the rail 76. Along with connecting the tip of the bracket 76b with the long link 75b, the other end of the short link 75a and the tip of the bracket 70a of the rail 70 fixed to the movable girder are connected with the long link 75c of the same length as above. A fitting length changing / equalizing device 75 of the present example is configured.

With such a configuration, the rail 76 at the tip is
Is advanced, the rail 74 advances by half the amount of advance, thereby extending the movable girder rail composed of the rails 70, 74, 76 while equalizing the fitting length of the concave and convex fitting portions 300, 301. Will be. Also rail 76
Is reversed, the concavo-convex fitting portion 30 is reversed.
Rails 70, 7 while equalizing the fitting lengths of 0, 301
The rail of the movable girder composed of 4,76 is shortened.

In this example, a pair of movable girders 7
2 and 90 have a concave portion at the end, while a pair of movable girders 84 and 92 have a rail 79 at the end.
However, having a convex portion at the distal end allows the protrusion and recess to be fitted when they advance.

FIGS. 9 to 11 are for explaining the change in the expansion / contraction of the rail of the movable girder performed by the fitting length changing / equalizing device 75. FIG. In order to switch to the above, the rails 76, 79 are moved backward, and the fitting relationship between the rails 76, 79 in a state in which the concave and convex fittings 300, 301 are fitted without any gap is shown.
In the figure, the two rails 76, 79 are separated by leaving a gap 2n so as not to hinder the switching operation. In the figure, the two rails 76, 79 are advanced by moving the rails 76, 79 forward.
Are shown in a state in which the concave and convex are fitted to each other.

FIG. 10 shows the fitting relationship between the movable girder 72 switched to the continuation side of the branch line and the tip rails 76 and 102 of the movable girder 92 similarly switched to the continuation side of the branch line. The state when the rails 76 and 102 are switched most backward and switched is shown in the figure.
The state when 02 is advanced by a predetermined amount is shown in the figure. As can be seen from FIG. 10, in the state on the branch line continuation side, the gap between the pair of rails 76, 102 is equal to the gap 2n (supposedly 4 m) that is enlarged with the rail turning. In addition, it becomes "4m + 2n".

FIG. 11 shows each of the concave and convex fitting portions 30 when the rails 76 and 102 are advanced by a predetermined amount (ie, in FIG. 10).
FIG. 4 is a view for explaining the state of the concave and convex fitting of the leading end of the rails 76 and 102 so as to give a fitting length of 2n to the concave and convex fitting of the rails 76 and 102, respectively. The fitting lengths of the concave and convex fitting portions 300 and 301 are uniformly shortened by “m + n”, and the continuity of the rails of the entire movable girder is secured.

FIGS. 12 and 13 illustrate a turning mechanism for turning each movable girder. A movable girder side pivotally connected between a pair of movable girder 72, 90 and 84, 92 in parallel. A connecting structure in which a connecting member 95 is provided between a pair of movable girders in parallel via the portions 94 and 96 is provided in each pair, and both ends of the connecting member 95 of the pair of connecting structures are connected to the connecting member 95, respectively. A frame member 97 pivotally attached to 95 and having a roller guide box 98 parallel to the movable girder is provided. And this roller guide box 98
The roller 9 at the tip of the arm of the crank / lever mechanism 100
9, the crank arm is moved to the movable girders 72 and 90 at positions W4, W5 and W6 in the drawing, and the movable girders 8 and
4, 4 and 92, the rotation mechanism is formed so as to be able to stop rotation at each position of W1, W2, W3 in the figure.

FIG. 12 shows a continuous state of the main line in which the crank arm of the turning mechanism is stopped at the positions of W1 and W4.
FIG. 13 shows that the rollers are moved to W2 and W by rotating the crank arm.
The state of the continuation of the branch line stopped at the position 6 is shown.

According to the present embodiment configured as described above, it is possible to switch between continuous main line and continuous branch line of the movable girder only by rotating the two sets of crank / lever mechanisms, and at the same time, to switch the non-continuous side. There is an advantage that the movable girder can be retracted to a position that does not hinder the traveling of the vehicle Z.

[0063]

As described above, according to the invention described in each claim of the present application, the following effects can be obtained.

According to the first aspect of the present invention, since the position of the continuation of the main line and the position of the continuation of the branch line are set in a line-symmetric relationship, the orbit lengths in the continuous state of the main line and the branch line can be made the same. This has the effect of eliminating the need for an auxiliary girder or the like, which was required to cause a difference in track length as in the prior art.

The movable girder is composed of a plurality of girder elements which can be bent around a vertical axis.
According to the invention, the turning part can be limited to a part directly connected to the fixed girder of the movable girder, whereby the refraction angle of the part where the movable girder is continuous can be limited to a small value, and the vehicle can be steered sharply. An effect is obtained that turning can be suppressed.

Further, the movable girder is composed of a plurality of girder elements, and has parallel movement guide means for moving and guiding other girder elements except for the girder element directly connected to the fixed girder. According to the above, when the girder element directly connected to the fixed girder is turned, the other girder elements always move in parallel along a fixed route, so that the orbit switching is stabilized.

Further, according to the fourth aspect of the present invention in which the magnitude of the turning angle of the movable movable girder is set to be equal in all four sets of movable girder, four sets of movable girder and associated turning means are provided. The effect that the peripheral mechanism such as the above can be shared and the apparatus can be reduced in cost can be obtained.

According to the fifth aspect of the present invention, a pair of concave portions and a pair of convex portions are provided on one end of a pair of parallel movable girders and the other end of a parallel pair of movable girders. Since the distal end of the movable girder having any one of these concave portions and convex portions is configured to be bent upward, the concave-convex fitting can be detached, so that the position of the main line continuation and the position of the branch line continuation are line-symmetric. Both lines set in the relationship (main line, branch line)
Can be secured without any gaps, and the vehicle does not give unpleasant vibrations when passing over a track joint or the like during traveling.

According to the sixth aspect of the present invention, there is provided a branching device in which there is a difference between the track lengths in the continuous state of the main line and the branch line, and a gap is formed between the ends of the movable girders which are continuous when the branch line is continuous. Since three or more girder elements are sequentially connected via the concave and convex fitting portions and the fitting length of each concave and convex fitting portion can be equalized, the gap is gradually absorbed by each concave and convex fitting portion. As a result, the gap between the concave and convex fitting portions and the tip of the movable girder can be eliminated so that a substantially continuous state of the track can be ensured, and an effect that unpleasant vibration is not given to the traveling vehicle is exhibited.

According to a seventh aspect of the present invention, there is provided a turning retracting means for retracting the other of the parallel movable girders in a direction away from the continuous branch line when one of the parallel movable girders is continuous. When a vehicle travels on a track with a continuous branch line, it is possible to effectively prevent a movable girder in a discontinuous state from interfering with a traveling vehicle. Can be reduced accordingly.

According to the eighth aspect of the present invention, the turning and retracting means is constituted so that a pair of movable girders in parallel are turned together by turning linking means for linking, thereby simplifying and avoiding the mechanism. The effect that the reliability of operation can be improved is produced.

According to the seventh and eighth aspects of the present invention, in a straddle type monorail and a magnetic levitation type railway, the vehicle body may be relatively large in the width direction of the track and may interfere with an adjacent device. Since the movable girder in the discontinuous state is retracted, there is an effect that it is effective in narrowing the width of the track between the two lines while solving the problem of interference.

[Brief description of the drawings]

FIG. 1 is a plan view showing an outline of a configuration of a first embodiment of a branching device according to the present invention in a main line continuous state.

FIG. 2 is a plan view showing the branching device in a branch line continuous state.

FIG. 3 is a diagram for explaining a continuity relationship between movable girder tips in a branch line continuation state of FIG. 2;

FIG. 4 is a plan view showing an outline of a configuration of a branching device according to a second embodiment of the present invention in a main line continuous state.

FIG. 5 is a plan view showing the branching device in a branch line continuous state.

FIG. 6 is a plan view showing an outline of the configuration of a third embodiment of the branching device according to the present invention in a main line continuous state.

FIG. 7 is a plan view showing the branching device in a branch line continuous state.

FIG. 8 is a plan view showing an outline of a fitting length changing / equalizing device of the branching device.

FIG. 9 is an enlarged view showing a state of a fitting length changing / equalizing device when the branching device is switched from a main line continuous position to a branch line continuous position.

FIG. 10 is an enlarged view showing a state of a fitting length changing / equalizing device when the branching device is switched to a branch line continuous position.

FIG. 11 is an enlarged view showing a state of a fitting length changing / equalizing device when the tipping rails are fitted to each other with concave and convex by switching the branching device to a branch line continuous position.

FIG. 12 is a plan view showing the configuration of a turning mechanism for switching the branching device between a main line continuous position and a branch line continuous position when the turning device is at the main line continuous position.

FIG. 13 is a plan view showing a configuration of a turning mechanism in the branching device when the turning mechanism is at a branch line continuous position.

FIG. 14 is a view for explaining a relationship of a gap generated between successive movable girders in the movable gird turning type branching device.

[Explanation of symbols]

 1, 4, 9, 12 ... fixed girder 2, 3, 10, 11 ... movable girder 5, 8, 13, 16 ... connection disk 6, 14 ... connection disk 7, 15 ... Flip-up parts 17,20 ... Hinges 18,19 ... Semicircular fitting parts

Claims (8)

[Claims] 1. A branching device provided for a vehicle to switch between parallel two-tracks, wherein the ends of four fixed girders of the parallel two-tracks connected to the branching part are respectively defined as turning centers in a horizontal plane. The movable girder includes four sets of movable girders capable of turning in a sector shape, and movable girder turning means for rotating each of these movable girders in a horizontal plane. Each of the movable girders is switched between a main line continuous state and a branch line continuous state by the rotation. In addition to being provided so that the position can be switched, the positions of the main line continuation and the branch line continuation where each movable girder is switched are set to line symmetric relation positions with respect to a line connecting the pair of turning centers of the parallel lines. Branching device for girder tracks. 2. A branching device provided for a vehicle to change between parallel two-tracks, wherein the ends of four fixed girders of the parallel two-tracks connected to the branching part are respectively defined as turning centers in a horizontal plane. The movable girder includes four sets of movable girders, and movable girder turning means for rotating each movable girder in a horizontal plane. Each movable girder connects at least two or more girder elements so as to be able to bend around a vertical axis. In addition to the above configuration, it is provided so that the position can be switched between the main line continuous state and the branch line continuous state by the turning, and furthermore, the position of the main line continuous and the branch line continuous where each movable girder is switched is determined by a pair of the parallel lines. A branching device for a girder track, wherein the branching device is set at a position symmetrical with respect to a line connecting a turning center. 3. The parallel moving guide means according to claim 2, further comprising, among a plurality of girder elements forming each movable girder, a girder element other than the girder element directly connected to the fixed girder. Branching device for girder tracks. 4. The branch for a girder track according to claim 1, wherein the magnitude of the turning angle of the movable movable girder is set to be equal in the four sets of movable girder. apparatus. 5. The pair of movable girder ends according to claim 1, wherein the pair of movable girder ends and the other pair of movable girder ends are provided with a pair of concave and concave portions which are fitted to each other. The top of the movable girder provided with any one of the above-mentioned projections and having any one of these recesses or projections is configured to be bent upward so that the concave-convex fitting can be attached and detached. Bifurcation device for track type. 6. A branching device provided for a vehicle to switch between parallel two-tracks, wherein the ends of four fixed girders of the parallel two-tracks connected to the branching part are respectively defined as turning centers in a horizontal plane. Four sets of movable girders capable of turning, and movable girder turning means for turning each movable girder to switch the position between a main line continuous state and a branch line continuous state, wherein each movable girder is at least three or more. Are sequentially connected via a concave / convex fitting portion that can adjust the depth of the concave / convex fitting along the track direction, and a fitting length for equalizing the fitting length of the plurality of concave / convex fitting portions. A branching device for a girder track, wherein equalizing means is provided. 7. A revolving retracting means according to claim 6, wherein when one branch line of the parallel movable girder is continuous, the other of the parallel movable girder is retracted in a direction away from the continuous branch line. Characteristic branching device for girder tracks. 8. A branching device for a girder-type track according to claim 7, wherein said turning and retreating means is turning linking means for linking and turning a pair of movable girders in parallel.