JP2020033690A - In-track cable protection plate - Google Patents

Abstract

To provide an in-track cable protection plate capable of properly preventing a cable arranged so as to cross a track from being damaged or disconnected even if an ice and snow mass falls from a railway vehicle.SOLUTION: In-track cable protection plates 1, 10 for protecting a cable 200 arranged to cross between a pair of rails 104, are made of solid rubber and include inclined surfaces 1A, 10A facing upward in a traveling direction A of a railway vehicle. Grooves or holes 1B, 10B for inserting the cable 200 at the bottom are provided, and vertical bolt insertion holes 1C, 10C are formed in a part that does not intersect with the groove or hole 1B. The plates are fixed to track beds 101, 102, 103 between the pair of rails 104 with bolts 2, 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an in-track cable protection plate that protects a crossing cable between a pair of rails from damage.

In some cases, a cable is provided on a railroad track so as to cross between a pair of rails.
When snow and ice masses (mass of snow and ice) attached to the railway vehicle fall during the operation of the railway vehicle and collide with the cable, the impact damages or breaks the cable.

Therefore, for example, Patent Literature 1 discloses a technique of disposing a rubber protection plate on the front side in the traveling direction of a railway vehicle, such as a cable.
An inclined surface portion is provided on the front side of the protective plate in the traveling direction of the railway vehicle, and the ice and snow mass falling from the railway vehicle is received by the inclined surface portion so that the ice and snow mass does not collide with the cable or the like. It has been proposed to prevent the occurrence of damage and disconnection.

JP 2012-144922 A

However, according to the technology described in Patent Document 1, since the cable is exposed on the back side of the protection plate in the traveling direction of the railway vehicle, the ice and snow lump falling from the railway vehicle is connected to the cable with a certain probability. Collisions could not be prevented.
For this reason, it has not been possible to reliably prevent the problem that the cable is damaged or disconnected due to ice and snow masses dropped from the railway vehicle.

  The present invention has been made in view of the above-mentioned problems, and even if ice and snow masses fall from a railway vehicle, the cable arranged to cross the track is damaged or disconnected. It is an object of the present invention to provide an in-orbit cable protection plate capable of accurately preventing the occurrence of a cable.

In order to achieve the above object, a first invention of the present application provides:
An in-track cable protection plate for protecting a cable disposed so as to cross between a pair of rails,
Made of solid rubber,
Equipped with an upward slope on the front side in the traveling direction of the railway vehicle,
A groove or hole for inserting the cable is provided at the bottom, and a vertical bolt insertion hole is formed at a portion that does not intersect with the groove or hole,
It is designed to be fixed with bolts on the roadbed between the pair of rails.
According to the above-mentioned cable protection plate in the track, even if ice and snow mass falls between the rails from the railcar, it properly prevents the cable arranged so as to cross the track from being damaged or broken. can do.

Preferably, the slab track is fixed to the slab protrusion of the slab track by the bolt, and a spacer can be interposed between the bottom and the upper surface of the slab protrusion.
Thus, even if the height of the slab track and the slab surface of the slab track are different, the cable protection plate in the track can be properly attached to them and properly attached to the slab track.

Furthermore, desirably, the front side and the back side in the traveling direction of the railway vehicle are respectively fixed by the bolts,
The groove or the hole is provided between the bolt on the near side and the bolt on the back side in the traveling direction of the railway vehicle.
As a result, the cable protection plate in the track is fixed to the slab protrusion on the front side and the back side in the traveling direction of the groove or hole, respectively, so that the cable does not protrude from the groove or hole, and the cable is properly inserted into the cable protection plate in the track. To protect the cable.

Alternatively, the in-track cable protection plate is fixed to the slab inlet provided in the slab mat of the slab track by the bolt.
As a result, the cable protection plate in the track can be properly attached to the slab mat and the slab filling port by properly attaching it to the slab track, and bolts are screwed to the slab mat to use the existing slab filling port on the slab mat. There is no need to provide a new hole for the opening.

Preferably, the bolt insertion hole is a long hole elongated in a direction perpendicular to the traveling direction of the railway vehicle.
Thereby, even if the interval between the pair of slab inlets is slightly changed, the two bolts can be properly inserted into the bolt insertion holes and screwed, and the cable protection plate in the track can be properly inserted into the slab mat or the like. Can be fixed to the slab inlet.

  ADVANTAGE OF THE INVENTION According to this invention, even if the ice and snow mass falls from a railroad vehicle, the effect that the cable arrange | positioned so that it may cross a track | truck can be prevented exactly from being damaged or disconnected. is there.

It is a top view showing the composition of the cable protection board in a track concerning a 1st embodiment. It is sectional drawing which follows the XX line in FIG. When the angle between the slab surface and the inclined surface of the in-track cable protection plate is θ, the figure explaining that the energy at the time of the collision of the ice and snow mass against the in-track cable protection plate becomes sinθ times the kinetic energy of the ice and snow mass. is there. It is a sectional view showing how to attach a cable protection board in a track to a slab projection when a slab projection is (A) higher than a slab surface, and (B) lower. It is a top view showing the composition of the cable protection board in a track concerning a 2nd embodiment. It is sectional drawing which follows the YY line in FIG.

Hereinafter, an embodiment of a cable protection plate in a track according to the present invention will be described in detail.
In the present invention, the cable is disposed so as to cross between the pair of rails. The in-track cable protection plate protects the cable.
The in-track cable protection plate is made of solid rubber, has an upwardly inclined surface on the front side in the traveling direction of the railway vehicle, and has a groove or hole for inserting a cable at the bottom thereof. Alternatively, a vertical bolt insertion hole is formed in a portion that does not intersect with the hole, and is fixed on the roadbed between the pair of rails with a bolt.

Hereinafter, a specific description will be given with reference to some embodiments.
In the following, a case where the track of the railway vehicle is a slab track will be described. However, the present invention can also be applied to, for example, a ballast track having a concrete roadbed.

[First Embodiment]
FIG. 1 is a plan view illustrating a configuration of a cable protection plate in a track according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line XX in FIG. The arrow A in FIG. 1 indicates the traveling direction of the railway vehicle. In the following, the traveling direction of the railway vehicle is simply referred to as the traveling direction for the sake of simplicity. Further, reference numeral 103 in FIG. 1 denotes a slab injection port.
In this embodiment, the in-track cable protection plate 1 is fixed to the upper surface 101A of the concrete slab protrusion 101 of the slab track 100 with bolts 2. That is, in the present embodiment, the slab protrusion 101 corresponds to the roadbed between the pair of rails described above.

The in-track cable protection plate 1 has a substantially rectangular parallelepiped shape and is made of solid rubber.
If, for example, EPDM (ethylene propylene diene rubber) is used as the rubber material, the in-orbit cable protection plate 1 becomes excellent in weather resistance, cold resistance, aging resistance and the like.

In addition, the in-track cable protection plate 1 has an inclined surface 1A whose side surface on the front side in the traveling direction (the left side in the drawing in FIG. 1 and the like) is an upwardly inclined surface 1A (that is, an inclined surface 1A that becomes higher as the traveling direction advances).
By providing the upward inclined surface 1A on the front side in the traveling direction of the in-track cable protection plate 1 as described above, for example, ice and snow clumps adhering to the railway vehicle fall between the rails 104 and hit the in-track cable protection plate 1. Also, ice and snow chunks are bounced off the inclined surface 1A.
Also, for example, even if the ice and snow mass slides on the slab surface 102A (the upper surface of the slab mat 102) of the slab track 100, if the above-described inclined surface 1A is provided on the cable protection plate 1 in the orbit, the ice and snow mass When it hits the cable protection plate 1 in the track, the ice and snow mass slides up the inclined surface 1A and flies to the far side in the traveling direction from the cable protection plate 1 in the track (right side in FIG. 1 and the like).

If the in-track cable protection plate 1 has a rectangular parallelepiped shape and is not provided with the inclined surface 1A, if an ice or snow mass dropped from the railway vehicle or an ice or snow mass sliding on the slab surface 102A collides with the in-track cable protection plate 1. , The ice and snow collides and stops.
At that time, since a very large force is applied to the cable protection plate 1 in the track to stop the heavy ice and snow blocks, the cable protection plate 1 in the track and the later-described cable 200 included therein are caused by the collision of the ice and snow blocks. Can be damaged or destroyed.

On the other hand, as in the present invention, if an upwardly inclined surface 1A is provided on the near side of the in-track cable protection plate 1, the ice and snow clumps falling from the railcar hit the inclined surface 1A or move on the slab surface 102A. Even if the sliding snow mass hits the slope 1A, the snow mass is jumped off the slope 1A or slides up the slope 1A as described above.
For this reason, even if an ice or snow mass hits the in-track cable protection plate 1, a very large impact is not applied. Therefore, the in-track cable protection plate 1 according to the present invention and the cable 200 included therein are damaged even if the snow and snow mass hits. It is not destroyed.

If the angle θ formed between the slab surface 102A and the inclined surface 1A of the in-track cable protection plate 1 is large, the ice and snow mass dropped from the railroad vehicle and the ice and snow mass sliding on the slab surface 102A as described above are generated in the track. Instead of being bounced off the slope 1A of the cable protection plate 1 or slipping up the slope 1A, the cable protection plate 1 collides with the in-track cable protection plate 1 and stops. Will be added.
Therefore, it is preferable that the angle θ between the slab surface 102A and the inclined surface 1A of the in-track cable protection plate 1 is not so large.

As shown in FIG. 3, assuming that the ice and snow mass moves in the horizontal direction and collides with the inclined surface 1A of the cable protection plate 1 in the track and is bounced off the inclined surface 1A, the snow and snow mass collision with the cable protection plate 1 in the track is assumed. The energy at the time is sin θ times the kinetic energy E of the ice mass (ie, Esin θ). When the angle θ is set to 30 degrees or less, the energy at the time of collision of the ice and snow mass with the intra-orbit cable protection plate 1 can be reduced to less than half the kinetic energy of the ice and snow mass.
Therefore, the angle θ formed between the slab surface 102A and the inclined surface 1A of the in-track cable protection plate 1 is preferably, for example, 30 degrees or less. This is preferable because the energy at the time can be made smaller than half of the kinetic energy of the ice mass.

In the present embodiment, the in-track cable protection plate 1 is provided with a groove or a hole at the bottom thereof for inserting the cable 200.
Although FIG. 2 shows a case where the groove 1B is provided at the bottom of the in-track cable protection plate 1, although not shown, the bottom of the in-track cable protection plate 1 is provided in the traveling direction A. It is also possible to constitute so that a hole may be provided in the orthogonal direction.

In the present embodiment, the cable 200 is disposed in the gap 102B between the two slab mats 102, and is disposed so as to pass under the two rails 104 and cross the track.
Therefore, the cable 200 is located below the slab surface 102A (the upper surface of the slab mat 102) at the portion of the gap 102B of the slab mat 102, but at the portion of the slab projection 101, The slab is placed on the upper side (see FIG. 2) and is exposed above the slab surface 102A.

In the present embodiment, the cable 200 thus positioned on the upper surface 101A of the slab protrusion 101 is inserted into the groove 1B (or hole; the same applies hereinafter) of the in-track cable protection plate 1 so that the in-track cable protection plate. Cover with 1.
Therefore, even if the ice and snow mass hits the in-track cable protection plate 1 as described above, the cable 200 can be properly protected by the in-track cable protection plate 1, and the ice and snow mass may fall from the railway vehicle. However, this makes it possible to properly prevent the cable 200 disposed so as to cross the track from being damaged or broken.

The number of cables 200 inserted into the groove 1B of the in-track cable protection plate 1 (that is, the number of cables 200 arranged so as to cross the track) is not necessarily two as shown in FIGS. The number does not need to be a book, and may be an appropriate number.
In the present embodiment, the width and depth of the groove 1B are arranged so as to traverse the track so that the cable 200 can be securely accommodated in the groove 1B of the in-track cable protection plate 1. The width and the depth are designed so that the thickest cable 200 among the cables 200 to be inserted can be inserted.

On the other hand, in the present embodiment, as described above, the in-track cable protection plate 1 is fixed to the concrete slab protrusion 101 with the bolts 2. In the embodiment, it is possible to securely fix the slab on the slab protrusion 101).
Further, if the cable protection plate 1 in the track is displaced when the snow and snow mass hits, the cable 200 may be damaged or disconnected due to the displacement. However, in the present embodiment, the cable 200 in the track as described above is used. Since the protection plate 1 is securely fixed on the roadbed (the slab protrusion 101), the position of the cable protection plate 1 in the track is prevented from being displaced even when an ice and snow mass hits, and the cable 200 is damaged or disconnected. This can be accurately prevented.

In the present embodiment, the in-track cable protection plate 1 is fixed to the slab protrusion 101 by bolts 2 (two on the front side and two on the back side) on the front side and the back side in the traveling direction, respectively. A groove 1B is provided between the bolt 2 on the front side in the traveling direction and the bolt 2 on the back side.
Therefore, the in-track cable protection plate 1 is fixed to the slab protrusion 101 on the front side and the back side in the traveling direction of the groove 1B, respectively, so that the cable 200 does not protrude from the groove 1B and is inserted into the in-track cable protection plate 1. Can be properly accommodated to protect the cable 200.

In this embodiment, as shown in FIGS. 1 and 2, a vertical bolt insertion hole 1C is formed in a portion of the track protection plate 1 that does not intersect with the groove 1B, and the bolt 2 is inserted therethrough. Then, the in-track cable protection plate 1 is fixed to the slab protrusion 101. If rainwater or the like accumulates in the upper opening of the bolt insertion hole 1C of the in-track cable protection plate 1 or if snow melts and accumulates water, problems such as the rust of the bolt 2 may occur.
Therefore, in the present embodiment, a through hole is formed obliquely downward from the opening of the bolt insertion hole 1C, and a drain hole 1D for draining water accumulated in the opening is provided. The drain hole 1D at the opening of the bolt insertion hole 1C on the front side in the traveling direction is opened in the groove 1B, and the drain hole 1D at the opening of the bolt insertion hole 1C on the rear side in the traveling direction is the cable protection plate 1 in the track. The side is open.

In addition, if the end of the in-gauge cable protection plate 1 on the front side in the traveling direction (the left end portion of the in-gauge cable protection plate 1 in FIGS. 1 and 2) is not in contact with the slab surface 102A, the railway vehicle travels during traveling. The in-gauge cable protection plate 1 rises due to wind pressure.
Therefore, in the present embodiment, as shown in FIG. 2, a recess 1 </ b> E is provided on the bottom surface of the in-track cable protection plate 1, and the end of the in-rail cable protection plate 1 on the near side in the traveling direction is lower than the recess 1 </ b> E. The in-gauge cable protection plate 1 is configured such that the end on the front side in the traveling direction surely contacts the slab surface 102A.

In the slab track 100, the height of the upper surface 101A of the slab protrusion 101 and the height of the slab surface 102A (the upper surface of the slab mat 102) are not always the same.
In the present embodiment, the front side in the traveling direction of the in-track cable protection plate 1 fixed on the upper surface 101A of the slab protrusion 101 extends on the slab surface 102A. If the height is different from the height of the slab surface 102A (if there is a difference in height), there is a possibility that the cable protection plate 1 in the track cannot be properly attached to the slab track 100.

Therefore, in the present embodiment, as shown in FIG. 2, the spacer 3 can be interposed between the bottom of the in-track cable protection plate 1 (for example, the above-described recessed portion 1E) and the upper surface 101A of the slab protrusion 101. It is configured as follows.
The spacer 3 is formed in a plate shape, and the thickness (height) of the spacer 3 is changed by changing the number of spacers 3 interposed between the bottom of the in-track cable protection plate 1 and the upper surface 101A of the slab protrusion 101. You can do it.

By changing the thickness of the spacer 3, the height of the in-track cable protection plate 1 with respect to the upper surface 101A of the slab protrusion 101 can be adjusted.
Therefore, in the in-track cable protection plate 1 according to the present embodiment, by changing the number of the spacers 3 of the in-track cable protection plate 1 and changing the thickness of the spacers 3, the in-track cable protection plate with respect to the upper surface 101A of the slab protrusion 101. By appropriately adjusting the height of the slab track 100, the height of the cable protection plate 1 in the track can be appropriately mounted and fixed on the floor of the slab track 100.

Hereinafter, a specific description will be given.
In the present embodiment, the in-track cable protection plate 1 is, as shown in FIG. 2, a bottom surface of the in-track cable protection plate 1 located above the upper surface 101 </ b> A of the slab protrusion 101 (hereinafter, referred to as a slab protrusion side bottom surface). The height of the portion is formed so as to be slightly higher than the height of the bottom portion (hereinafter, referred to as a slab surface side bottom surface) located on the slab surface 102A, and the above-described concave portion 1E is provided.

  Therefore, for example, as shown in FIG. 2, when the height of the upper surface 101A of the slab protrusion 101 and the height of the slab surface 102A are the same, the bottom of the in-track cable protection plate 1 (the bottom surface on the slab protrusion side) and the slab protrusion A predetermined number of spacers 3 are interposed between the upper surface 101A of the slab 101 and the upper surface 101A of the slab track 100 (i.e., the same applies to the recesses 1E). Can be mounted properly.

  That is, the bottom surface of the cable protection plate 1 in the track is not in a state where the bottom surface on the slab protrusion side is lifted from the upper surface 101A of the slab protrusion 101 or the spacer 3, or the state in which the bottom surface of the slab side is raised from the slab surface 102A. 1 with the slab protrusion side bottom surface properly abutting on the upper surface 101A of the slab protrusion 101 via the spacer 3 and the slab surface side bottom surface properly abutting on the slab surface 102A. Can be properly mounted on the roadbed.

  Also, as shown in FIG. 4A, when the height of the upper surface 101A of the slab protrusion 101 is higher than the height of the slab surface 102A, the bottom surface of the in-track cable protection plate 1 on the slab protrusion side and the upper surface of the slab protrusion 101 To reduce the thickness of the spacers 3 by reducing the number of spacers 3 interposed between the spacers 101A and 101A, and to fix the in-track cable protection plate 1 to the slab protrusion 101 with the bolts 2 without the spacers 3 interposed therebetween. Thus, the in-track cable protection plate 1 can be appropriately mounted on the roadbed of the slab track 100.

  Further, as shown in FIG. 4B, when the height of the upper surface 101A of the slab protrusion 101 is lower than the height of the slab surface 102A, the bottom surface of the in-track cable protection plate 1 on the slab protrusion side and the upper surface of the slab protrusion 101 By fixing the in-track cable protection plate 1 to the slab protrusion 101 with the bolts 2 in a state where the thickness of the spacer 3 is increased by increasing the number of spacers 3 interposed between the cable protection plate and the in-track cable protection plate. 1 can be appropriately mounted on the bed of the slab track 100.

  As described above, in the in-track cable protection plate 1 according to the present embodiment, the number of the spacers 3 interposed between the bottom of the in-track cable protection plate 1 and the upper surface 101A of the slab protrusion 101 is changed, or the like. By changing the thickness (height), even if the height of the upper surface 101A of the slab protrusion 101 and the height of the slab surface 102A are the same or there is a height difference, the cable protection plate in the track with respect to the upper surface 101A of the slab protrusion 101. 1 can be appropriately adjusted, and the in-track cable protection plate 1 can be appropriately mounted and fixed on the track bed of the slab track 100.

[Second embodiment]
FIG. 5 is a plan view showing a configuration of an intra-track cable protection plate according to a second embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along line YY in FIG.
The arrow A in FIG. 5 indicates the traveling direction (the traveling direction of the railway vehicle), as in the case of FIG.

In the present embodiment, the in-track cable protection plate 10 is fixed to a slab injection port 103 provided in a slab mat 102 of the slab track 100 with bolts 11. That is, in the present embodiment, the slab injection port 103 and the slab mat 102 correspond to the roadbed between the pair of rails described above.
In the present embodiment, as shown in FIG. 6, the female screw portion 12 is embedded in the slab injection port 103, and the bolt 11 is screwed to the female screw portion 12 and fixed.

Also in this embodiment, the in-track cable protection plate 10 has a substantially rectangular parallelepiped shape, is solid, and is made of rubber such as EPDM.
In addition, the in-track cable protection plate 10 has an inclined surface 10A whose front side in the traveling direction is upward. The effect of providing the inclined surface 10A is the same as that of the first embodiment, and even if an ice or snow clump hits the in-track cable protection plate 10, the in-track cable protection plate 10 and the cable 200 contained therein may be damaged. Destruction is prevented. The angle θ formed between the slab surface 102A and the inclined surface 10A of the in-track cable protection plate 10 is also the same as in the first embodiment, and a description thereof will be omitted.

Also in the present embodiment, the in-track cable protection plate 10 is provided with a groove or hole at the bottom thereof for inserting the cable 200.
Although FIG. 6 shows a case in which the groove 10B is provided at the bottom of the in-track cable protection plate 10, although not shown, the bottom of the in-track cable protection plate 10 is provided in the traveling direction A. It is also possible to constitute so that a hole may be provided in the orthogonal direction.

On the other hand, in the present embodiment, the cable 200 is disposed along the rail 104, and a part thereof is disposed so as to pass over the slab mat 102 and cross the track. Therefore, the cable 200 is exposed on the slab mat 102.
In the present embodiment, a portion of the cable 200 traversing the slab mat 102 is inserted into the groove 10B (or hole; the same applies hereinafter) of the in-track cable protection plate 10 and covered with the in-track cable protection plate 10. .

Therefore, even if the snow and snow mass hits the in-track cable protection plate 10 as described above, the cable 200 can be properly protected by the in-track cable protection plate 10, and the snow and snow mass may fall off the railroad vehicle. However, this makes it possible to properly prevent the cable 200 disposed so as to cross the track from being damaged or broken.
Note that the number of cables 200 inserted into the groove 10B of the in-track cable protection plate 10 (that is, the number of cables 200 arranged so as to cross the track) is not necessarily one as shown in FIGS. The number does not need to be a book, and may be an appropriate number.

In the first embodiment, since the portion of the cable 200 exposed above the slab surface 102A is only the portion provided on the upper surface 101A of the slab projection 101, the cable protection plate 1 in the track has the cable 200 Need only cover the portion exposed on the slab protrusion 101.
However, in this embodiment, since the cable 200 is exposed on the slab surface 102A over the entire area between the left and right rails 104, the length of the in-track cable protection plate 10 in the left and right direction (that is, perpendicular to the traveling direction A). It is desirable to form the cable 200 as long as possible so that the cable 200 traversing the track (ie, the cable 200 between the left and right rails 104) covers the widest possible area with the cable 200 in the track.

Therefore, in the present embodiment, the length of the in-track cable protection plate 10 in the left-right direction is set to 1110 mm, which is longer.
When the in-track cable protection plate 10 is installed between the left and right rails 104 and the length of the in-track cable protection plate 10 in the left-right direction is too long, the in-track cable protection plate 10 is made of rubber. Therefore, it can be installed by cutting the left and right ends.

On the other hand, in the present embodiment, as described above, the cable protection plate 10 in the track is fixed to the female screw portion 12 buried in the slab injection port 103 provided in the slab mat 102 of the slab track 100 with the bolt 11 or the like. To the slab injection port 103).
Therefore, it is possible to securely fix the cable protection plate 10 in the track on the roadbed between the pair of rails (that is, in the present embodiment, the slab mat 102 and the slab inlet 103).

In addition, if the cable protection plate 10 in the track is displaced when the snow and ice mass hits, the cable 200 may be damaged or disconnected.
However, in the present embodiment, the in-track cable protection plate 10 is securely fixed on the track bed (the slab mat 102 and the slab injection port 103) as described above. Of the cable 200 is prevented from being shifted, and it is possible to accurately prevent the cable 200 from being damaged or disconnected.

Further, in the present embodiment, the in-track cable protection plate 10 is fixed to the slab inlet 103 provided in the slab mat 102 with the bolt 11 as described above.
Therefore, there is no need to newly provide a hole for screwing the bolt 11 in the slab mat 102, and the bolt 11 can be screwed using the slab injection port 103 already provided. There is also.

At that time, as shown in FIG. 5, the slab injection ports 103 are usually formed on the left and right sides of the slab mat 102 in pairs. For this reason, in the present embodiment, the in-track cable protection plate 10 is provided with bolt insertion holes 10 </ b> C into which the bolts 11 are respectively inserted at two places corresponding to the two left and right slab injection ports 103. Note that the bolt insertion hole 10C is formed in a vertical direction at a portion that does not intersect with the above-described groove 10B.
However, there are many cases where the interval between the pair of slab injection ports 103 provided on the left and right sides of the slab mat 102 is slightly longer or shorter than a specified interval.

Therefore, in this embodiment, as shown in FIG. 5, the bolt insertion hole 10C is a long hole that is long in the left and right directions (that is, long in the direction orthogonal to the traveling direction A).
With such a configuration, even if the interval between the pair of slab injection ports 103 is slightly longer or shorter than the prescribed interval, the two bolt insertion holes 10C are elongated, so that two bolts are formed. The distance between the bolts 11 can be changed in accordance with the distance between the pair of slab inlets 103.
Therefore, even if the interval between the pair of slab injection ports 103 is slightly changed, the two bolts 11 can be properly inserted into the bolt insertion holes 10C and screwed, and the in-track cable protection plate 10 can be properly inserted. It can be fixed to the slab mat 102 or the slab inlet 103.

In the present embodiment, the bolt insertion hole 10C is an elongated hole as described above, and a gap is formed between the bolt insertion hole 10C and the bolt 11 inserted therethrough, so that even if it rains or snow melts, Water flows through the gap and flows below the cable protection plate 10 in the track.
Therefore, in the present embodiment, it is not necessary to provide the drain hole 1D (see FIGS. 1 and 2) as in the first embodiment.

  It is needless to say that the present invention is not limited to the above embodiment, and can be appropriately changed without departing from the spirit of the present invention.

1, 10 In-track cable protection plate 1A, 10A Inclined surface 1B, 10B Groove (groove or hole)
1C, 10C Bolt insertion hole 2, 11 Bolt 3 Spacer 100 Slab track 101 Slab protrusion (roadbed)
101A Upper surface of slab protrusion 102 Slab mat (roadbed)
103 Slab injection port
104 Rail 200 Cable A Travel direction (travel direction of railway vehicle)

Claims (5)

An in-track cable protection plate for protecting a cable disposed so as to cross between a pair of rails,
Made of solid rubber,
Equipped with an upward slope on the front side in the traveling direction of the railway vehicle,
A groove or hole for inserting the cable is provided at the bottom, and a vertical bolt insertion hole is formed at a portion that does not intersect with the groove or hole,
An in-track cable protection plate, which is fixed on a roadbed between the pair of rails with bolts.   The slab track of the slab track is fixed to the slab protrusion by the bolt, and a spacer is interposed between the bottom and the upper surface of the slab protrusion. In-track cable protection plate. It is fixed by the bolts on the front side and the back side in the traveling direction of the railway vehicle, respectively,
The in-track cable protection plate according to claim 2, wherein the groove or the hole is provided between the bolt on the near side and the bolt on the back side in the traveling direction of the railway vehicle.   The in-track cable protection plate according to claim 1, wherein the bolt is fixed to a slab injection port provided in a slab mat of the slab track.   The in-track cable protection plate according to claim 4, wherein the bolt insertion hole is a long hole elongated in a direction orthogonal to the traveling direction of the railway vehicle.

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