JPH0516802U - Cable sleepers - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a sleeper for storing cables capable of preventing damage to the cable due to a tie tamper or the like during track work such as ballast compaction during maintenance work. [Claim 1] A cable storage sleeper in which a hollow hole is provided so as to penetrate therethrough in the longitudinal direction, the cable storage sleeper having an opening above the end of the hollow hole.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cable storage sleeper used in a railway.

[0002]

[Prior Art]

 Signal / communication cables and lighting / working power cables may be installed between the tracks. In this case, there is a case where the cable is simply laid under the rail and randomly laid on the ballast, but there is a case where the cable is processed into a sleeper to store the cable. is there.

For example, FIG. 5 shows a sleeper that has been processed to accommodate the cable 3A. In this case, a cutout portion 4A is formed in the upper shoulder along the longitudinal direction, and the cable 3A is housed in the cutout portion 4A. A band 5A is fixed to the sleeper by bolts 6A to prevent the cable 3A from falling off. There is also a method of covering with a cover instead of the band 5A.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional sleepers for storing cables, for example, when a band is used to prevent the cables from falling off, and when the ballast is tampered with a tie tamper, the portion close to the side of the sleepers should be pushed as much as possible. Since it needs to be hardened, there is a risk of damaging the cable in the exposed area. Moreover, there is a risk that the cable will be damaged due to the fact that many other track maintenance work is performed at night. In addition, the method of covering with a cover reduces the risk of cable damage compared to the method of applying a cover, but the risk of damaging the cable with the cover still remains. Therefore, it is possible to avoid this danger by making the cover considerably strong, but the cover becomes expensive and becomes heavy in weight, so the work of attaching and detaching the cover is done. It becomes economically disadvantageous due to the deterioration of sex.

In view of the drawbacks of the conventional sleepers for storing cables as described above, the present applicant has proposed, as a sleeper for storing cables 1A, capable of protecting the cables so that the cables will not be damaged during track work. We devised the one shown in FIG. That is, the hollow hole 2A is provided so as to penetrate therethrough in the longitudinal direction. However, it has been found that there is room for improvement in the above sleepers in practical use as well.

As shown in FIG. 7, when there is a large amount of extra ballast (B) at the end or when the end is filled up, the cable 3A is built in the hollow hole 2A. However, it is not easy to find out from the outside, and there is a risk of damaging the cable by driving dog nails, nail nails, etc. into the sleeper 1A during subsequent maintenance and maintenance work, or by re-tapping. There was found.

An object of the present invention is to provide a sleeper for storing cables that does not have the above-mentioned drawbacks.

[0008]

[Means for Solving the Problems]

 The gist of the present invention is a cable storage sleeper having a hollow hole penetrating at least along the longitudinal direction inside thereof, wherein the upper end of the hollow hole is opened. There is a sleeper for cable storage.

[0009]

[Action]

 As described above, the cable storage sleeper of the present invention is provided with the hollow hole 2 penetrating at least in the longitudinal direction inside thereof, and the opening 10A is provided above the end of the hollow hole 2. Since the cable (or cable duct) 3a housed in the hollow hole 2 can be easily identified from the outside as shown in FIG. It is possible to prevent the cable 3a from being damaged when the ballast (B) of the portion is tamped.

[0010]

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a cable storage tie of the present invention, and FIG. 2 is a side view showing a state where the cable of the tie is stored.

The cable storage sleeper 1 of the above-mentioned embodiment is provided with a hollow hole 2 penetrating the inside thereof along the longitudinal direction. The hollow hole 2 is provided over the entire length in the longitudinal direction of the sleeper 1, and has a rectangular cross section. As shown in FIG. 2, two cables, large and small, can be stored. In the present invention, the upper ends of the hollow holes 2 are cut out at both ends 10 and 10 of the sleeper 1 to form openings 10A.

The sleeper 1 has a central portion partially cut out along the longitudinal direction of the two plates, and one of the wooden plates 1 has further cutouts at both ends, and the cutout portions are separated from each other. It is made by adhering two plates facing each other with an adhesive.

The hollow hole 2 has a width and a depth larger than the outer diameters of the cables 3a and 3b to be housed therein, and may have a shape capable of being cut out on the upper surface, and the bottom is not flat. Good. For example, the cross-sectional shape of the hollow hole 2 may be circular, elliptical, square, semicircular, or the like. 3 (A) to 3 (F) show modified examples of the hollow hole 2. FIG. 3 (A) is circular, FIG. 3 (B) is semicircular, and FIG. 3 (C) is double circular. 3 (d) is fan-shaped, FIG. 3 (e) is elliptical, and FIG. 3 (f) is rectangular. Of these, the hollow hole 2c of FIG. 3C is formed to have a large size and a small size according to the outer diameter of each cable so that the two large and small cables can be accommodated independently. The hollow hole 2 may be a combination of two or more kinds of holes having different shapes. Further, the position where the hollow hole 2 is provided is preferably the central portion in the width direction of the sleeper 1, but if it is within the width of the sleeper 1, it is not necessarily the central portion inside the sleeper 1.

The sleeper 1 is preferably made of a hard foam resin reinforced with long fibers in the longitudinal direction. In the case of this sleeper made of hard foamed resin, the strength is high, so even if a hollow hole that penetrates inside is provided, there is no practical problem and it is easy to manufacture. Water and dust are retained in the hollow hole. Even so, there is no fear of corrosion from the hollow holes, and no cracks occur even after repeated wet and dry.

The type of hard foam resin used is not particularly limited, but from the viewpoint of heat resistance required as a structural material and the ease of manufacturing a plate-shaped material, for example, urethane resin, Thermosetting resins such as epoxy resin, vinyl ester resin, unsaturated polyester resin and phenol resin are preferred.

Further, in order to improve the compressive strength of the sleeper 1 and to reduce the cost, the hard foamed resin is added to the inorganic fillers such as calcium carbonate, gypsum, talc, aluminum hydroxide and clay, silas balun and pearlite. Alternatively, a lightweight bone agent such as glass balloon may be added. Further, as the long fibers, for example, any of long fibers such as an inorganic material such as glass fiber, carbon fiber and metal fiber, and an organic material such as natural fiber and synthetic fiber may be used, but the strength and the economical efficiency are long. From the surface, glass fiber is suitable. Examples of the glass fiber include roving, roving cloth, mat, and chopped strand mat. The long fibers may be used alone or may be used by stacking two or more layers. Moreover, you may mix and use a short fiber in a long fiber.

Next, the operation of the embodiment will be described. Since the cable storage sleeper 1 of the above-mentioned embodiment is provided with a hollow hole 2 penetrating the inside thereof along the longitudinal direction, the cables 3a and 3b are stored along the hollow hole 2. Thus, the cables 3a and 3b can be prevented from being exposed on the side surface of the sleeper 1. That is, it is possible to prevent the cables 3a and 3b from being damaged during track work, for example, when the ballast in the portion close to the side surface of the sleeper 1 is tamped with a tie tamper. If the width and depth of the hollow hole 2 are formed to be larger than the outer diameter of the cable to be accommodated, when the cable 3 is accommodated in the hollow hole 2, the cable is inserted from the upper surface of the sleeper 1. Since the cable 3 does not project, the safety of preventing damage to the cable 3 is further enhanced.

In the case of the above-mentioned embodiment, since the cable storage sleeper 1 is made of a hard foam resin reinforced with long fibers in the longitudinal direction, it has the above-mentioned features (1) to (3). Since the hollow hole 2 is formed inside, there is almost no decrease in strength, and there is no problem in practical use, and it can be used. FIG. 4 is a perspective view showing another example of the present invention. In this case, the hollow hole 20 is formed in an L-shape inside the sleeper 10. In this case, for example, it is effective when there is another cable connection terminal near the end of the hollow hole 20.

[0019]

[Effect of the device]

 As described above, the sleeper for storing the cable of the present invention can store the cable in the hollow hole that is provided penetrating in the inner longitudinal direction. Since it can be easily identified from the outside through the opening above the end of the cable, it is possible to prevent the cable from being damaged by a tie tamper during track work such as compaction of ballast during maintenance work.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a sleeper for storing a cable of the present invention.

FIG. 2 is a side view showing the cable storage state of the sleeper of FIG.

3A to 3F are cross-sectional views showing modified examples of hollow holes.

FIG. 4 is a perspective view showing a modified example of the present invention.

FIG. 5 is a perspective view showing a use state of a conventional sleeper for storing cables.

FIG. 6 is a perspective view showing a sleeper for storing cables, which the applicant of the present invention has previously filed.

FIG. 7 is a reference view showing a use state of the cable storage sleepers shown in FIG.

FIG. 8 is a reference view showing a use state of the cable storage sleeper shown in FIG.

[Explanation of symbols]

 1, 10 cable storage sleepers 2 hollow holes 3a, 3b cables, 10 end portion 10A opening

Claims (1)

[Scope of utility model registration request] 1. A cable storage sleeper provided with a hollow hole penetrating at least along a longitudinal direction inside thereof, wherein an upper end of the hollow hole is opened. Sleepers for storing cables.