JP3065065U - Iron sleeper insulation joint device - Google Patents

Abstract

(57) [Summary] In an iron sleeper insulation joint device employing a central insulation method, a structure is provided which can be installed even in a place where a space between rails to be laid (space between rails) is narrow. A pair of iron sleepers provided with end plates are provided.
The end plates 21 and 22 are arranged so as to face each other,
When the insulating plate 31 is interposed between the end face plates and the insulating plate and each of the end face plates are connected by the connecting means 40, the end face plate at the upper surface position of the iron sleeper is formed low, and the connecting means 40 is connected to the iron pillow. End plates 21 and 22 provided at side positions
To the top of the iron sleeper, end plates 21 and 22
In addition, the structure is such that the insulating plate 31 does not protrude significantly and can be installed even in a place where the distance between the rails is narrow.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a device for insulating an iron sleeper used for a railway line from a signal track circuit, and more particularly, to a structure of a central insulation type iron sleeper insulating joint device for insulating the center of the iron sleeper.

[0002]

[Prior art]

 In recent years, iron sleepers are being used as sleepers laid under the rails of railway tracks from the viewpoint of durability and the like. On the other hand, in the case of railroad tracks, track circuits are formed with the rails as part of the circuit for signal equipment.If left and right rails are laid on iron sleepers, the rails are electrically connected. When using an iron sleeper, it was necessary to provide an insulating structure for the railroad circuit, which would cause a short circuit.

[0003] As insulation systems for iron sleepers, there are an under-rail insulation system and a central insulation system. The under-rail insulation system is a structure in which insulating members are inserted and arranged along the left and right rails between the iron sleeper and the track to be laid. According to this method, since the insulating member is located below the rail, the force received from the vehicle wheels passing on the rail acts directly, and there is a problem with the durability of the insulating member, and the insulating member moves. Yes phenomenon occurs. In addition, since there is an insulating member under the rail, the insulating position is unclear, which hinders maintenance and cannot maintain a good insulating state.

On the other hand, in the central insulation system, as shown in FIGS. 3 and 4, an iron sleeper on which the left and right rails 101 and 102 are laid is divided at a central portion thereof, and the left and right iron sleepers 11 and 11 are separated. 12, an insulating plate 31 is inserted between the flanged end plates 21 and 22 of the left and right iron sleepers, and the left and right iron sleeper end plates 21 and 22 and the insulating plate 31 are positioned around the end plates. It is a structure that is fixed by a plurality of connecting means 40. According to the iron sleeper insulated joint device employing this method, the insulation position is clear, maintenance for replacing the insulating plate 31 is easy, and a good insulation state can be maintained. Also, there is an advantage that the insulation area by the insulating plate 31 can be greatly reduced as compared with the under-rail insulation system in which the entire lower surface of the rail has an insulation area.

[0005]

[Problems to be solved by the invention]

 The central insulation method can eliminate the disadvantages of the under-rail insulation method, but it is necessary to fasten and fix the insulating plate 31 between the left and right iron sleepers 11 and 12 by the connecting means 40. Therefore, after the rails 101 and 102 are laid on the iron sleepers 11 and 12, when the connection portions are released at the time of replacing the insulating plate 31 or the like, the end plates 21 and 22 of the iron sleepers 11 and 12 are removed. For the connecting means 40 'located at the upper part of the rail, the laying rails 101 and 102 may become an obstacle when the fastening bolt 41 is pulled out.

That is, as shown in FIG. 4, in the connecting means 40 ′ located above the iron sleepers 11 and 12, a space (space in the direction of the arrow) for releasing (pulling out) the fastening bolt 41 has a rail. It becomes necessary between 101 and 102. The space formed between the rails 101 and 102 becomes extremely narrow at the insertion position of the insulating plate 31 in the branch line peripheral area A as shown in the layout of the iron sleepers and the laid rails in the entire branching device in FIG. In some cases, it was not possible to install a central insulation type insulation device.

Further, in the iron sleeper insulating joint device having the above structure, the end plates 21 and 22 and the insulating plate 31 form projections with respect to the upper surfaces of the iron sleepers 11 and 12. When snow falls on the connecting means 40 or the insulating plate 31 mounted on the upper part of the vehicle, there is a problem that the height of the snow is increased and the removal work is hindered.

[0008] The present invention has been made in view of the above-mentioned circumstances, and in an iron sleeper insulated joint device employing a central insulation method, it is installed even in a place where the distance between rails to be laid (space between rails) is narrow. It is an object of the present invention to provide an iron sleeper insulation coupling device having a structure that can be easily removed from snow.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the invention of claim 1 arranges a pair of iron sleepers having a substantially U-shaped cross section and a flange-like end plate provided at one end side so that the end plate faces each other. An iron sleeper insulated joint device for connecting the insulating plate and each of the end plates with an insulating plate interposed between the end surface plates, characterized by including the following configuration. The insulating plate and each end plate are connected by a plurality of connecting means mounted so as to fix them. The protrusion of the end face plate at the upper surface position with respect to the iron sleeper is formed to be low, and the connecting means are provided only on the end face plate at the side position of the iron sleeper.

According to a second aspect of the present invention, in the iron sleeper insulated joint device according to the first aspect, an insulating resin is applied so as to cover a portion where the insulating plate and each of the end face plates are connected. And

[0011] According to the present invention, the end plate at the upper surface position of the iron sleeper is formed low, and each connecting means is provided only on the end plate at the side surface position of the iron sleeper. A structure in which the face plate and the insulating plate do not protrude significantly can be provided.

Further, since the insulating resin is applied so as to cover a portion where the insulating plate and each end face plate are connected, even if a rod-shaped conductive member is present on the connecting portion, for example, The insulation state is maintained without short-circuiting between the end plates.

[0013]

[Embodiment of the invention]

 An example of an embodiment of the present invention will be described with reference to the drawings. FIGS. 1A and 1B show the structure of the insulating part of the iron sleeper joint device of the present invention. FIG. 1A is a side view, FIG. 1B is a plan view, and FIG. 1C is a front view.

The iron sleeper insulating joint device 10 includes a pair of iron sleepers 11, 12 having a substantially U-shaped cross section and having flange-like end plates 21, 22 formed on one end side. They are arranged so that they face each other, and are connected and fixed by connecting means 40 with an insulating plate (insulating member) 31 interposed between the end face plates 21 and 22 for insulating between the iron sleepers. . The end plates 21 and 22 are formed in a substantially rectangular shape, and iron sleepers 11 and 12 are welded and connected to their center positions. The end face plates 21 and 22 are extended to the side surfaces of the iron sleepers 11 and 12 and are formed low on the upper surface sides of the iron sleepers 11 and 12. The insulating plate 31 is formed of a material having an insulating property, and is formed of a flat plate slightly larger than the end plates 21 and 22.

The structure of the connecting portion is such that an insulating plate 31 is interposed between the end face plates 21 and 22, and fastening bolts 41 penetrate through holes provided in the end face plates 21 and 22, the insulating plate 31 and the end face plate. Are connected by two connecting means 40. Each connecting means 40 is provided at two positions only on the left and right end face plates 21 and 22 at the side surface positions of the iron sleepers 11 and 12, respectively.

As shown in FIGS. 1B and 3, the detailed structure of the connecting means 40 is a tube having a cylindrical portion 42 a and a flange portion 42 b with respect to the end face plate 21, the insulating plate 31 and the end face plate 22. A shaft 42b of a fastening bolt 41 having a head 41a and a shaft 41b is inserted into the tube 42 from one end via a disk-shaped washer 43. From the other end side, a disk-shaped round seat 44 is inserted into the cylindrical portion 42a of the tube 42, a disk-shaped washer 45 is provided on the shaft portion 41b of the fastening bolt 41, and a locking nut washer 46 having a notch portion. And tighten them with the fastening nut 47. The tube 42, washers 43 and 45, and round seat 44 are each formed of an insulating member so that the fastening nut 41 is completely insulated from the end plates 21 and 22 of the iron sleepers 11 and 12.

A paste-like insulating resin 51 is applied to a connecting portion where the insulating plate 31 and each of the end face plates 21 and 22 are connected. The insulating resin 51 is applied so as to cover at least the insulating plate 31 and the end plates 21 and 22 on the iron sleepers 11 and 12. In this example, the coating is applied to the upper and both sides of the connecting portion where the insulating plate 31 and the end plates 21 and 22 are connected.

According to the iron sleeper insulating joint device 10 having the above structure, each connecting means 40 for connecting the insulating plate 31 and each of the end face plates 21 and 22 is provided at a side position with respect to the iron sleepers 11 and 12. Since it is mounted only on the side of the end plates 21 and 22 provided, the connecting and connecting means 40 is not located between the rails laid on the iron sleepers, and the fastening bolts 41 are not hindered by the rails. The insulating plate 31 can be installed even in an area where the space between the rails is small, and the rail can be easily replaced.

Each connecting means 40 for connecting the insulating plate 31 and each of the end plates 21 and 22 is attached only to the end plates 21 and 22 provided at the side surfaces of the iron sleepers 11 and 12. Therefore, a large convex portion is not formed above the iron sleepers 11 and 12, and even when snow is deposited thereon, the removing operation can be easily performed.

Further, since the upper end of the insulating plate 31 does not protrude from the iron sleepers 11 and 12, the conductive member happens to fly in compared with the conventional example, so that a short circuit occurs in this portion. It is easy to happen. In the present embodiment, as a preventive measure, the insulating member 51 is applied so as to cover a portion where the insulating plate 31 and each of the end face plates 21 and 22 are connected, so that the conductive member exists on the connecting portion. Even in such a case, the insulated state can be reliably maintained without short-circuiting between the end face plates 21 and 22.

[0021]

[Effect of the Invention] According to the present invention, in the iron sleeper insulated joint device, the end plate at the upper surface position of the iron sleeper is formed low, and each connecting means is provided only on the end plate provided at the side position of the iron sleeper. Therefore, it is possible to adopt a structure in which the end face plate and the insulating plate do not protrude significantly from the upper surface of the iron sleeper, and install the insulating plate even in a region where the distance between the rails laid on the iron sleeper is narrow. This makes it possible to obtain an insulating structure. Further, since the shape does not protrude significantly from the upper surface of the iron sleeper, it is possible to obtain a structure that can easily remove snow.

Further, since the insulating resin is applied so as to cover a portion where the insulating plate and each end face plate are connected, even when a rod-shaped conductive member is present on the connecting portion, for example, It is possible to reliably maintain the insulation state without short-circuiting between the end face plates.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of an iron sleeper insulated joint device according to the present invention, wherein (a) is a side view of an insulated joint portion, (b) is a plan view of an insulated joint portion, and (c). () Is an explanatory front view of the insulating joint portion.

FIG. 2 is a laying line explanatory diagram for explaining a layout of iron sleepers and laying rails in the entire branching device.

FIG. 3 is an explanatory perspective view of an insulating structure portion of the iron sleeper insulating joint device.

FIG. 4 is an explanatory front view of the entire iron sleeper insulated joint device in a state where rails are laid.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Iron sleeper insulating joint device, 11, 12 ... Iron sleeper, 21, 22 ... End plate, 31 ... Insulating plate, 40 ... Connection means, 41 ... Fastening bolt, 41a ... Head, 41b ... Shaft, 47 ... fastening nut, 51 ... insulating resin, 101,
102 ... Rail

Claims (2)

[Utility model registration claims] 1. A pair of iron sleepers each having a substantially U-shaped cross section and a flange-shaped end plate provided on one end side thereof are arranged so that the end plate plates face each other, and an insulating plate is provided between the end plate plates. A joint device for connecting the insulating plate and each of the end face plates by interposing the same, wherein the insulating plate and each of the end face plates are connected by a plurality of connecting means mounted so as to fix them, and the iron An insulated iron sleeper joint device, wherein the protrusion of the end face plate at the upper surface position with respect to the sleeper is formed low, and the connecting means are provided only on the end face plate at the side position of the iron sleeper. 2. The iron sleeper insulation joint device according to claim 1, wherein an insulating resin is applied so as to cover a portion where the insulating plate and each of the end face plates are connected.