JP2000104202A - Structure and method for installing under-track crossing cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure and a method for installing a under-track crossing cable allowing easy and low cost installation on a standard sleeper. SOLUTION: This structure is provided with two sleeper end supporting members 3, 3 supported by the sleeper end and including partially circular engaging recess parts 31c, 32c and also with a first pipe-shaped member 1, which is composed of a synthetic resin or the like, formed in a pipe shape, arranged to extend in the longitudinal direction of a sleeper, and near both ends being supported by respectively fitting into engaging recess parts 31c, 32c of respective sleeper end supporting members 3, 3. The structure is also provided with a second pipe-shaped member 2, which is composed of a steel or the like, formed in a pipe shape, inserted into the interior of the first pipe- shaped member 1, and composed so that a cable C can be inserted into the interior.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an under-rail crossing cable mounting structure for mounting a under-rail crossing cable extending under a rail of a railway on a sleeper, and a method of mounting the under-rail crossing cable. It is.

[0002]

2. Description of the Related Art In a railway, in order to wire impedance bonds provided at both ends of a track circuit, a cable (hereinafter, referred to as "under the track") traverses under the rail of the railway in a direction substantially perpendicular to the track direction. Crossing cable ”). In addition to the impedance bond, when wiring a railroad crossing control device provided at a railroad crossing, it is necessary to arrange a crossing cable under the track.

In such a case, conventionally, as shown in FIG. 9, a special sleeper 60 called a "PC sleeper for cable protection" has been used. In this cable protection PC sleeper 60, the shoulder portion of the sleeper is recessed (hereinafter, referred to as a shoulder).
It is referred to as “cable housing recess”. ) 60a, 60b so that the cable C can be inserted into the cable accommodating recesses 60a, 60b.

[0004] In the cable sleeper PC sleeper 60, bolt embedding plugs 60c are embedded at several places during manufacture of the sleeper. Thus, the cover mounting bolts 65, 66 are formed by using the cable protection covers 62, 63, 64 formed of a steel plate or the like so as to have a substantially “U” cross section and having the bolt insertion holes (not shown) opened. , 67, etc., are screwed into the bolt plugs 60c through bolt insertion holes of the cable protection covers 62 to 64, etc., so that the cable protection covers 62 to 64, etc.
0 can be attached.

[0005] The cable protection covers 62 to 64 and the like are attached in the vicinity of a place where a track maintenance machine such as a multiple tie tamper frequently performs work, so that the cable C is not damaged or cut by the machine or the like during such work. Is considered.

[0006]

However, the conventional cable protection PC sleeper 60 described above has a problem in that the material cost is high since it has a special structure. Furthermore, when replacing a sleeper, it is a special thing different from other standard sleepers, so that there is a problem that the work is different from the standard sleeper and maintenance work cost is expensive.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an under-rail crossing cable mounting structure which can be easily and inexpensively mounted on a standard sleeper. And a method of attaching a crossing cable under track.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the under-rail crossing cable mounting structure according to the present invention comprises a sleeper supporting a rail of a railway, and a sleeper longitudinal end perpendicular to the rail longitudinal direction. Two sleeper end support members supported by each sleeper end and having a partially circular engagement recess, formed of a flexible material and formed in a tubular shape and extending in the longitudinal direction of the sleeper A first tubular member, which is disposed in such a manner that both ends thereof are fitted and supported in the respective engaging recesses of the respective sleeper end supporting members, and which is formed of a hard material and formed in a tubular shape, A second tubular member that is inserted inside the member and that allows a cable to be inserted therein is provided.

[0009] In the above-described under-track crossing cable mounting structure, preferably, the sleeper end support member is capable of pressing a first pressure-receiving surface, which is one of surfaces near the sleeper end. A first supporting member having a second pressing member capable of pressing a second pressed surface, which is another surface of the surface near the end of the sleeper, and a first pressing member. A supporting bolt for supporting the first support member and the second support member to the end of the sleeper by pressing the first pressed surface and pressing the second pressed surface by the second pressing surface; Has a nut.

In the above-mentioned under-track cable mounting structure, preferably, the first pressing portion presses the first pressed surface and the second pressing surface presses the second pressed portion. It has an urging member for urging.

In the above-described under-track crossing cable mounting structure, preferably, the pressing of the first pressed surface by the first pressing portion is provided between the first pressing portion and the first pressed surface. A first pressing auxiliary member that assists, and a second pressing auxiliary member that is interposed between the second pressing portion and the second pressed surface and assists pressing of the second pressed surface by the second pressing portion. .

In the above-mentioned under-track crossing cable mounting structure, preferably, the third support is attached to a lower portion of the first support member or the second support member and abuts a bottom surface of the end of the sleeper from below. It has a member.

In the above-mentioned under-track crossing cable mounting structure, preferably, a lower portion of the first support member and a lower portion of the third support member, or a lower portion of the second support member and a lower portion of the third support member. And a penetration portion inserted into the ballast crushed stone to prevent horizontal displacement of the sleeper due to the pressure of the surrounding ballast crushed stone.

Further, according to the method of mounting a crossing cable under a track according to the present invention, two sleeper end supporting members having partially circular engaging concave portions are provided in a sleeper supporting a rail of a railway so as to be perpendicular to a rail longitudinal direction. A first step of attaching to the two sleeper ends which are to be the longitudinal ends of the sleeper, and then extending a first tubular member made of a flexible material and formed into a tube in the longitudinal direction of the sleeper And a second step of bending the first tubular member to fit and support the vicinity of both ends of the first tubular member into the respective engagement recesses of the respective sleeper end support members, and
Next, a third step of inserting a second tubular member made of a hard material and formed in a tubular shape into the inside of the first tubular member, and then passing a cable through the inside of the second tubular member so as to extend under the track. And a fourth step of traversing.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway front view showing the structure of a cable connecting structure under a track according to an embodiment of the present invention. FIG. 2 is a diagram showing a more detailed configuration of the under-track crossing cable mounting structure shown in FIG. 1, and FIG.
FIG. 2 is an enlarged top view of the end of the sleeper in FIG.
(B) has shown the enlarged side view of the end of the sleeper in FIG. 1 (A), respectively. FIG. 3 is a view showing a configuration of a first support member which is a component of the under-track crossing cable mounting structure shown in FIG. 1, and FIG.
3B shows a side view, and FIG. 3C shows a front view. 4 is a diagram showing a configuration of a second support member which is a component of the under-track crossing cable mounting structure shown in FIG. 1, FIG. 4 (A) is a top view, and FIG. 4 (B) is a front view. FIG. 4C shows a side view. FIG. 5 is a diagram showing a configuration of a second support member which is a component of the under-track crossing cable mounting structure shown in FIG. 1, wherein FIG. 4 (A) is a top view and FIG. 4 (B) is a front view. Fig. 4
(C) has shown the side view, respectively. FIG.
6A and 6B are diagrams showing configurations of a biasing spring and a supporting bolt which are components of the under-rail crossing cable mounting structure shown in FIG. 1. FIG. 6A is a side view of the biasing spring. (B) has shown the side view of the support bolt, respectively. Also,
FIG. 7 is an enlarged view of the first pressing auxiliary member in the under-track crossing cable mounting structure according to one embodiment of the present invention.

As shown in FIG. 1, the under-track crossing cable mounting structure 100 is provided with a sleeper end support member 3, a first tubular member 1, and a second tubular member 2.

The sleeper end support member 3 is supported by a sleeper end, which is an end in the sleeper longitudinal direction perpendicular to the rail longitudinal direction in the sleeper 50, by a bolt or the like described later. Further, the first tubular member 1 is disposed so as to extend in the sleeper longitudinal direction perpendicular to the rail longitudinal direction, and both ends thereof are supported by two sleeper end support members 3. In addition, the second tubular member 2 includes the first tubular member 1.
It is inserted inside.

The sleeper end support member 3 includes a first support member 31, a second support member 32,
A third support member 33 and two support bolts 35, 35;
, Two support nuts 36, 36 and a biasing spring 34.
And two third support member mounting bolts 37, 37;
Three third support member mounting nuts 38, four flat washers 39, 39, 39, 39, and a first pressing auxiliary member 41.
And a second pressing auxiliary member 42. In the above, the biasing spring 34 corresponds to a biasing member.

The first support member 31 is shown in FIGS.
As shown in FIG. 3 (B) and FIG. 3 (C), it is made of a steel material and has a rectangular plate-shaped vertical portion 31a and a first pressing portion 31b.
The first pressing portion 31b is formed so as to bend from the upper portion of the vertical portion 31a by making a cut or the like in one plate member and bending the plate member, or by welding two plate members. The plate surface of the first pressing portion 31b is formed to be perpendicular to the plate surface of the vertical portion 31a.

An engagement recess 31c for supporting a first tubular member 1 described later is formed in the upper part of the vertical portion 31a. The engagement recess 31c is a notch having a shape that forms a part of a circle (hereinafter, referred to as a “partially circular shape”; a shape of approximately a semicircle). Further, a bolt hole 31d for attaching a third support member 33 to be described later with a bolt is formed below the vertical portion 31a.

On the other hand, near the center of the first pressing portion 31b,
A bolt hole 31e is provided for attaching a support bolt 35 described later. At the lower part of the first pressing portion 31b, mounting holes 31f and 31g for mounting a first pressing auxiliary member 41 described later are formed.

The second support member 32 is shown in FIGS.
(B), As shown in FIG. 4 (C), it is made of steel and has a vertical portion 32a and a second pressing portion 32b in a rectangular plate state. The second pressing portion 32b is formed so as to bend from the upper portion of the vertical portion 32a by making a cut or the like in one plate member and bending the plate member, or by welding the two plate members. The plate surface of the second pressing portion 32b is formed to be perpendicular to the plate surface of the vertical portion 32a.

An engagement recess 32c for supporting a first tubular member 1 described later is formed in an upper portion of the vertical portion 32a. The engagement recess 32c is a partially circular notch similar to the engagement recess 31c. Further, a bolt hole 32d for attaching a third support member 33 to be described later with a bolt is formed below the vertical portion 32a.

On the other hand, near the center of the second pressing portion 32b,
A bolt hole 32e is provided for attaching a support bolt 35 described later. At the lower part of the second pressing portion 32b, mounting holes 32f and 32g for mounting a second pressing auxiliary member 42 described later are formed.

The first support member 31 and the second support member 3
2 are symmetrical to each other, with the vertical portion 31a corresponding to the vertical portion 32a, and the first pressing portion 31b corresponding to the second pressing portion 32b. In addition, the engaging recess 31c corresponds to the engaging recess 32c. Also, bolt holes 31d, 3
1e corresponds to the bolt holes 32d and 32e, respectively, and the mounting holes 31f and 31g correspond to the mounting holes 32f. 32g each.

The third support member 33 is shown in FIGS.
(B), As shown in FIG. 5 (C), it is made of steel and has a vertical portion 33a and a horizontal portion 33b in a rectangular plate state. The third support member 33 is formed by bending one plate member, or by integrally forming such as rolling. Also, the plate surface of the horizontal portion 33b is
The third support member 33 has a substantially “L” -shaped cross section. The first support member 3 described above is provided on the vertical portion 33a.
Oval holes 33c, 33d for bolts for attaching to the first and second support members 32 by bolts are provided. The third support member mounting bolt 37 is a bolt made of a steel material. The third support member mounting nut 38 is
It is a nut made of steel and formed in a hexagonal shape. The flat washer 39 is a disk-shaped nut made of steel.

As shown in FIG. 6A, the biasing spring 34 is a spring made of a linear spring steel material and formed in a coil shape (corrugated shape).

As shown in FIG. 6B, the supporting bolt 35 is made of steel and has a cylindrical shaft portion 35a, a spring fitting portion 35b, and a male screw portion 35c. The spring fitting portion 35b has a spiral groove. For this reason, the spring fitting portion 35b is connected to the end 34a or 34b of the biasing spring 34.
When screwed into the inside, the spiral groove fits inside the end 34a or 34b of the biasing spring 34. Support nut 3
Reference numeral 6 denotes a hexagonal nut made of steel.

The first pressing auxiliary member 41 is made of a synthetic resin material or a rubber material, as shown in FIGS.
A wedge portion 41a having a triangular prism shape, two protrusion-shaped fitting portions 41b, 41b provided on the plane side of the wedge portion 41a,
It has a holding portion 41c. The inclination angle of the inclined surface of the wedge portion 41a is set to a value equal to the inclination angle of the front and rear side surfaces of the sleeper 50 (the front surface or the rear surface with respect to the rail longitudinal direction). Further, the bottom surface shape of the pressing portion 41c is formed in a curved surface shape similar to the curved surface of the shoulder portion of the sleeper 50. As shown in FIG. 2B, the second pressing auxiliary member 42 is made of a synthetic resin material or a rubber-based material, and has a configuration similar to that of the first pressing auxiliary member 41.

As shown in FIGS. 1, 2A and 2B, the first tubular member 1 is made of a synthetic resin material, FRP (Fiber).
It is made of a flexible material such as Reinforced Plastics (fiber reinforced plastic) and is formed into a pipe with a circular cross section, and has a through cavity with a circular cross section inside.
As the first tubular member 1, a commercially available construction material or the like can be used.

As shown in FIGS. 1, 2A and 2B, the second tubular member 1 is made of steel, hard plastic, FR or the like.
It is made of a material having strength, especially cut resistance, such as P (Fiber Reinforced Plastics), and is formed in a pipe shape with a circular cross section, and has a through cavity with a circular cross section inside. As the second tubular member 1, a commercially available construction material such as a steel pipe can be used.

Next, the above-mentioned sleeper end supporting members 3, 3
Attach to both sleeper ends of sleeper 50, first
The tubular member 1 and the second tubular member 2 are connected to a sleeper end support member 3,
A method of attaching the third mounting member will be described.

First, the sleeper end supporting member 3 is attached to the sleeper end of a predetermined sleeper 50. For this reason, the bedrock crushed stone (ballast) at the end of the sleeper 50 to be attached is scraped out, and a space where the sleeper end support member 3 can be attached to the side and the lower part of the sleeper end of the sleeper 50 is provided. create.

In parallel with the above operation, a part of the sleeper end supporting member 3 is assembled in advance. First, the bolt hole 33c of the third support member 33 is matched with the bolt hole 31d of the first support member 31, and the third support member 33 is similarly formed.
After the bolt hole 33d of the second support member 32 is aligned with the bolt hole 32d of the second support member 32, the bolts 33, the third support member mounting nuts 38, and the flat washers 39 are used. , The third support member 33 is connected to the first support member 31 and the second support member 33.
It is attached to the support member 32. At this time, the third support member 33
Since the bolt holes 33c and 33d are oval holes, it is possible to handle various types of sleepers 50 having different cross-sectional dimensions.

In this case, the vertical portion 31 of the first support member 31
a and the lower end of the vertical portion 33a of the third support member 33 are set to coincide with each other, and similarly, the lower end of the vertical portion 32a of the second support member 32 and the vertical portion 33 of the third support member 33 are set.
It is set so that the lower end of “a” coincides with the lower end. Thereby, the first support member 31, the second support member 32, and the third support member 33
As shown in FIG. 2 (B), when viewed from the side of the sleeper 50, it becomes a substantially “U” shaped member. As shown in FIG. 1, when viewed from the front of the sleeper 50, It has an "F" -shaped structure.

The first pressing portion 31 of the first support member 31
2 (C), the fitting portions 41b, 41b of the first pressing auxiliary member 41 are pushed into and fitted into the mounting holes 31f, 31g of the first supporting member 31. The first pressing auxiliary member 41 is attached as shown in FIG. Similarly, the second support member 32 has a second pressing portion 32b inside the second pressing portion 32b.
The pressing auxiliary member 42 is attached.

Next, of the part of the sleeper end support member 3 formed by the above-described assembly, the upper surface of the horizontal portion 33b of the third support member 33 is moved to the lower surface of the sleeper end of the sleeper 50. 1 and 2 (B) from below. At the same time, the first pressing auxiliary member 41
The inclined surface of the wedge portion 41a is, as shown in FIG. 2B and FIG. 7, an inclined surface S1 (hereinafter, referred to as a "first pressure surface") corresponding to an upper shoulder on the front and rear side surfaces of the sleeper 50. ). Similarly, also for the second pressing auxiliary member 42, the inclined surface of the wedge portion (not shown) is equivalent to the inclined surface S <b> 2 (hereinafter, “second pressed surface”) corresponding to the upper shoulder of the front and rear side surfaces of the sleeper 50. (See FIG. 2B).

In parallel with the above operation, the spring fitting portion 35b of one of the two supporting bolts 35 is screwed into one end 34a of the biasing spring 34, and the spring fitting portion The spiral groove 35b is fitted to the inner wall of the end 34a of the biasing spring 34. Similarly, the spring fitting portion 35b of the other one of the two supporting bolts 35 is screwed into the inside of the other end 34b of the biasing spring 34 so that the spiral groove of the spring fitting portion 35b is formed. The other end 34 of the biasing spring 34
b. Thus, the supporting bolts 35, 35 are attached to both ends 34a, 34b of the biasing spring 34, and a spring-loaded bolt is formed.

Next, as shown in FIGS. 2 (A) and 2 (B), one end of the male screw portion 35c which is the end of the spring-loaded bolt formed as described above abuts on the sleeper 50. The first support member 31 is inserted into the bolt hole 31e of the first pressing portion 31b, and the other end of the male screw portion 35c serving as the end of the bolt with spring is brought into contact with the sleeper 50. After inserting the flat washer 39 into the bolt hole 32e of the second pressing portion 32b of the second support member 32 and inserting the flat washer 39, the supporting nut 36 is screwed and tightened to each.

This bolt tightening force acts on the first pressed surface S1 of the upper shoulder of the front and rear side surfaces of the sleeper 50 from the first pressing portion 31b of the first support member 31 via the first pressing auxiliary member 41, The first pressure surface S1 is tightened. On the other hand,
The bolt tightening force is applied to the second pressing portion 32 b of the second support member 32.
Through the second pressing auxiliary member 42 and acts on the second pressed surface S2 of the upper shoulder of the front and rear side surfaces of the sleeper 50, and the second pressed surface S
2 is tightened. By this tightening action, the sleeper end support member 3 is fixed to and supported by the sleeper end of the sleeper 50. In this way, as shown in FIG. 1, the sleeper end supporting members 3 are attached to one end of the sleeper 50 and the other end of the sleeper 50, respectively.

In this manner, the sleeper end support members 3, 3
When attached to each sleeper end of the sleeper 50,
As shown in FIG. 1, the lower portion of the vertical portion 31a of the first support member 31 and the lower portion of the vertical portion 33a of the third support member 33 are integrated by a third support member mounting bolt 37 or the like, and the ballast crushed stone B Is inserted into. For this reason, this part receives the pressure from the surrounding ballast crushed stone B, and this pressure prevents the sleeper 50 from shifting in the horizontal direction. Similarly, a lower portion of the vertical portion 32a of the second support member 32,
The lower part of the vertical portion 33a of the third support member 33 is integrated by a third support member mounting bolt 37 or the like, inserted into the ballast crushed stone B, and the portion is subjected to pressure from the surrounding ballast crushed stone B to form a pillow. The hook 50 is prevented from shifting in the horizontal direction. Here, the lower part of the vertical part 31a of the integrated first support member 31 and the lower part of the vertical part 33a of the third support member 33 constitute a root part. Similarly,
The integrated lower part of the vertical part 32a of the second support member 32 and the lower part of the vertical part 33a of the third support member 33 constitute a root part.

The steps so far correspond to the first step.

Next, the first tubular member 1 is made to extend in the longitudinal direction of the sleeper, the first tubular member 1 is flexed by utilizing flexibility, and the vicinity of both ends of the first tubular member 1 is moved. The respective engagement recesses 31c, 31c of the respective sleeper end support members 3, 3 are fitted respectively. Thereby, the vicinity of both ends of the first tubular member 1 is supported by the engaging recesses 31c, 31c (see FIGS. 1, 2A, and 2B). In this case, the first
The tubular member 1 is slightly bent (bently deformed) as a whole, and is pressed and fitted to each of the engagement recesses 31c at two points by elastic repulsion (see FIG. 8). This step corresponds to the second step.

Next, the second tubular member 2 is connected to the first tubular member 1.
(See FIGS. 1, 2A and 2B). In this case, since the second tubular member 1 has high strength and high rigidity, it is hardly bent (hardly deformed by bending), and the first tubular member 1 is hardly bent.
It is substantially straight inside the tubular member 1 (see FIG. 8). This step corresponds to the third step.

Next, the cable C is inserted inside the second tubular member 2.
Can be crossed under the track, and a cable crossing under the track can be configured (see FIG. 8).
This step corresponds to the fourth step.

The below-track crossing cable mounting structure 100 of the present embodiment configured as described above has the following advantages.

(1) Sleeper 5 for attaching cable C
Since 0 may be a standard sleeper, material (product) costs can be significantly reduced as compared to conventional cable protective PC sleepers.

(2) Since the sleeper 50 for attaching the cable C may be a standard sleeper, the work of replacing the sleeper can be performed uniformly, and the maintenance work cost can be reduced.

(3) The mechanism for supporting the first tubular member 1 on the sleeper end supporting member 3 is an elastic repulsive force of the first tubular member 1, which is very simple, and causes an accident or failure due to loosening. There is no certainty. Further, when the first tubular member 1 is damaged or the like, it can be easily replaced and the replacement cost is very low.

(4) The sleeper end support member 3 has a structure that can be easily attached to and detached from the sleeper end, thereby improving the efficiency of maintenance work.

(5) The final protection function of the cable C is fulfilled by the second tubular member 2, and the second tubular member 2 has a high strength. When the tamping tool inserted into the crushed stone is erroneously brought into contact with the second tubular member 2
Is safe and does not break.

(6) Even if the second tubular member 2 is made of a steel pipe, if the first tubular member 1 for housing the second tubular member 2 is made of an insulating material such as a synthetic resin material, short-circuiting between rails will occur. Can be prevented, and a signal failure or the like can be reliably prevented.

(7) The sleeper end support member 3 can be attached to the sleeper 50 by tightening the sleeper 50 by the tightening force of the support bolt 35. No work such as cutting is required, the mounting work is easy, and the strength of the mounted sleeper 50 is not reduced.

(8) A biasing spring 34 is attached to the support bolts 35, 35, and the respective support bolts 35, 35
A tensile force is applied to 35 by the elastic action of the biasing spring 34. Thereby, the sleeper 50 is moved from the first pressing portion 31b of the first support member 31 via the first pressing auxiliary member 41.
Is pressed to press the first pressed surface S1 of the sleeper 50 from the second pressing portion 32b of the second support member 32 via the second pressing auxiliary member 42, The inner surface of the support nut 36 is constantly pressed against the outer surface of the first pressing portion 31b of the first support member 31 and the outer surface of the second pressing portion 32b of the second support member 32. Therefore, the support nut 36 is prevented from loosening due to train vibration or the like.

(9) Under-track crossing cable mounting structure 1
Each member of 00 is very convenient because it can use a steel material, a steel plate, a coil spring, a bolt, a nut, a steel pipe, a plastic pipe, and the like that are widely used as civil engineering and building materials. In addition, since no special processing is required for processing each member, the manufacturing cost is low.

(10) In the under-track crossing cable mounting structure 100, the portion projecting from the bedrock crushed stone in the middle of the sleeper 50 and the sleeper 50 is a support nut 36.
Because of the degree, it does not interfere with the operation of the track maintenance machine.

The present invention is not limited to the above embodiment. The above embodiment is an exemplification, and has substantially the same configuration as the technical idea described in the scope of the claims of the present invention. It is included in the technical scope of the invention.

For example, in the above-described embodiment, the configuration in which the coil-shaped spring is used as the urging member has been described as an example. However, the present invention is not limited to this, and the configuration does not use the urging member. You may.

When the biasing member is used, the spring is not limited to the coil spring, but may be a leaf spring, a bamboo shoot spring, or the like. The compression spring is not limited to the tension spring, and may be a compression spring. When the compression spring is used as the biasing member, for example, the first pressing portion 31b and the second pressing portion 3
2b, the first pressing portion 31b and the second pressing portion 3
What is necessary is just to comprise so that a compression force may be provided to 2b.

In the above-described embodiment, the first and second pressure surfaces have been described by taking as an example the inclined surfaces of the upper shoulders at the front and rear sides of the end of the sleeper. However, the present invention is not limited thereto. The other surfaces of the sleeper are not limited to the first pressure surface and the second
The surface to be pressed may be pressed and tightened. For example, the upper surface and the lower surface of the end of the sleeper may be pressed and tightened as the first pressure surface or the second pressure surface. In this case, the first pressing portion or the second pressing portion is disposed at a position facing the upper or lower surface of the sleeper end, and the biasing member is disposed in the vertical direction.

As another form, the vicinity of the center of the slope of the front and rear side surfaces of the end of the sleeper is pressed and tightened as the first and second pressed surfaces, or the lower part of the slope of the front and rear side surfaces of the end of the sleeper is pressed. The vicinity may be pressed and tightened as a first pressed surface and a second pressed surface. In this case, the first pressing portion or the second pressing portion is disposed near the center outside the end face of the sleeper end or near the lower portion on the end face side of the sleeper end, and the biasing member is It is arranged horizontally outside the end face of the end.

In the above embodiment, a hard member having a cylindrical cross section has been described as an example of the second tubular member. However, the present invention is not limited to this. It may be a tubular member, for example, a second tubular member having a cross-sectional shape such as a rectangular shape, a polygonal shape, and an elliptical shape.

Further, in the above embodiment, members having a triangular cross section have been described as examples of the first pressing auxiliary member and the second pressing auxiliary member. However, the present invention is not limited to this. A member having another configuration, for example, a member having a trapezoidal cross section may be used.

[0065]

As described above, according to the present invention,
Two sleeper end support members supported by the sleeper end and having a partially circular engagement recess; and formed of a flexible material and formed in a tubular shape and arranged to extend in the longitudinal direction of the sleeper. A first tubular member which is provided to be fitted and supported in each of the engagement recesses of each of the sleeper end supporting members, and a tubular member formed of a hard material and inserted into the first tubular member. And a second tubular member configured so that a cable can be inserted therein,
It has the advantage that it can be easily and inexpensively attached to standard sleepers.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a configuration of a below-track crossing cable mounting structure according to an embodiment of the present invention.

2 is a diagram showing a more detailed configuration of the under-track crossing cable mounting structure shown in FIG. 1; FIG. 2 (A) is FIG. 1 (A);
2B shows an enlarged top view of the end of the sleeper, and FIG. 2B shows an enlarged side view of the end of the sleeper in FIG.

FIG. 3 is a view showing a configuration of a first support member which is a component of the under-track crossing cable mounting structure shown in FIG. 1;
3A is a top view, FIG. 3B is a side view, and FIG.
Shows front views.

FIG. 4 is a view showing a configuration of a second support member which is a component of the under-track crossing cable mounting structure shown in FIG. 1;
4A is a top view, FIG. 4B is a front view, and FIG.
Shows side views, respectively.

FIG. 5 is a view showing a configuration of a third support member which is a component of the under-track crossing cable mounting structure shown in FIG. 1;
5A is a top view, FIG. 5B is a side view, and FIG.
Shows front views.

6A and 6B are diagrams showing a configuration of an urging spring and a supporting bolt which are components of the under-rail crossing cable mounting structure shown in FIG. 1; FIG. 6A is a side view of the urging spring; FIG. 6 (B)
Shows side views of the supporting bolt.

FIG. 7 is an enlarged view of a first pressing auxiliary member in the under-track crossing cable mounting structure according to one embodiment of the present invention.

FIG. 8 is a diagram illustrating a method of attaching a crossing cable under a track by a cross section cable mounting structure under a track according to an embodiment of the present invention.

FIG. 9 is a diagram showing a configuration of a track at a conventional under-track crossing cable location, and FIG. 9 (A) shows a cable protection PC;
9 (B) is a partial front view of the cable protection PC sleeper, and FIG. 9 (C) is FIG. 9 (A).
Respectively show AA sectional views.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st tubular member 2 2nd tubular member 3 sleeper end support member 31 1st support member 31a perpendicular part 31b 1st press part 31c engaging recessed part 31d, 31e Bolt hole 31f, 31g Mounting hole 32 Second support member 32a vertical portion 32b second pressing portion 32c engaging concave portion 32d, 32e bolt hole 32f, 32g mounting hole 33 third support member 33a vertical portion 33b horizontal portion 33c, 33d bolt hole 34 biasing spring 34a, 34b end Part 35 Support Bolt 35a Shaft 35b Spring Fitting 35c Male Thread 36 Support Nut 37 Third Support Member Attachment Bolt 38 Third Support Member Attachment Nut 39 Plain Washer 40 Nuts for Attachment of Sleeper Joint 41 Pressing assisting member 41a Wedge portion 41b Fitting portion 41c Holding portion 42 Second pressing assisting member 43 Horizontal portion 44 Side wall portion 0 PC sleeper 60 Cable sleeper PC sleeper 60a, 60b Cable receiving recess 60c Bolt plug 62-64 Cable protection cover 65-67 Cover mounting bolt 100 Under-track crossing cable mounting structure B Ballast crushed stone C Cable R Rail S1 First pressed surface S2 Second pressed surface

Continuing on the front page (72) Inventor Shunichi Komuro Hokkaido, Sapporo-shi, Chuo-ku, Kita 11 Jo Nishi 18-chome JR Part 303-103 (72) Inventor Takeji Fukuda 1428-20 Takagasaka, Machida-shi, Tokyo (72) Inventor off Keisuke Shiki 1-525, Higashi-Dainicho, Omiya City, Saitama Prefecture

Claims (7)

[Claims] 1. A sleeper supporting railroad rails, the two sleepers being supported at each sleeper end which is a sleeper longitudinal end perpendicular to the rail longitudinal direction and having a partially circular engaging recess. A bridge end support member, formed of a flexible material and formed in a tubular shape, disposed so as to extend in the longitudinal direction of the sleeper, and both ends near the engagement recesses of the respective sleeper end support members. A first tubular member fitted and supported; a second tubular member formed of a hard material and formed in a tubular shape, inserted into the first tubular member, and configured to allow a cable to be inserted therein. A cable crossing structure under a track, comprising: 2. The undertrack crossing cable mounting structure according to claim 1, wherein the sleeper end support member is capable of pressing a first pressure-receiving surface that is one of surfaces near the sleeper end. A first support member having a pressing portion, and a second surface which is another surface of the surface near the end of the sleeper
A second support member having a second pressing portion capable of pressing the pressed surface; and a second pressing member pressing the first pressed surface by the first pressing portion and pressing the second pressed surface by the second pressing surface. 1. A crossroad cable mounting structure under a track, comprising: a support bolt and a support nut for fixing the first support member and the second support member to the end of the sleeper. 3. The under-track crossing cable mounting structure according to claim 2, wherein the first pressing portion presses the first pressed surface and the second pressing surface presses the second pressed portion. An under-track crossing cable mounting structure comprising a biasing member for biasing. 4. The under-track crossing cable mounting structure according to claim 2, wherein the first pressing portion is interposed between the first pressing portion and the first pressed surface to press the first pressed surface by the first pressing portion. The first to assist
A pressing auxiliary member; and a second pressing auxiliary member interposed between the second pressing portion and the second pressed surface to assist the pressing of the second pressed surface by the second pressing portion. Crossing cable mounting structure under the track. 5. The under-rail crossing cable mounting structure according to claim 2, wherein the third support is attached to a lower portion of the first support member or the second support member and abuts a bottom surface of the sleeper end from below. A cross section cable mounting structure under a track, comprising a member. 6. The under-rail crossing cable mounting structure according to claim 5, wherein a lower portion of the first support member and a lower portion of the third support member, or a lower portion of the second support member and a lower portion of the third support member. A cable insertion structure under a track, which has a root portion inserted into ballast crushed stone to prevent horizontal displacement of the sleeper due to pressure of the surrounding ballast crushed stone. 7. A sleeper supporting railroad rails, wherein two sleeper end support members having partially circular engagement recesses are used as two sleepers which are end portions in the sleeper longitudinal direction perpendicular to the rail longitudinal direction. A first step of attaching to the end portion, and then extending a first tubular member made of a flexible material and formed into a tube in the longitudinal direction of the sleeper, and bending the first tubular member. By doing so, a second step of fitting and supporting the vicinity of both ends of the first tubular member with the respective engaging recesses of the respective sleeper end supporting members, and then forming a second tube made of a hard material and formed into a tube. A third step of inserting the two tubular members into the inside of the first tubular member; and a fourth step of inserting a cable through the inside of the second tubular member so as to cross under the track. line How to install crossing cables.