JP3076133B2 - Labor saving elastic sleeper directly connected track structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track structure for supporting a rail on a roadbed of a railway track.

[0002]

2. Description of the Related Art Conventionally, various track structures have been provided on railway tracks in order to support rails and improve mitigation of noise and vibration during running on the rails. For example, in an elastic sleeper direct-coupled track structure, the sleeper is covered with an elastic material and fixed to the roadbed with a filler. According to this structure, the up-down, left-right, and front-rear load of the sleeper due to receiving the load from the rail are alleviated by the elastic material, and noise and vibration are reduced.

[0003]

However, as shown in FIG. 5 (a is a plan view, and b is a cross-sectional view taken along the line AA) of this elastic sleeper directly connected track structure, a concrete frame previously cast is used. In the crib 10, the sleepers 12 covered with the elastic material 11 are positioned one by one at regular intervals, and the fillers 14 are provided up to the upper surface position of the elastic material 11 so that the sleeper 12 is 16, it is difficult to arrange the sleepers 12 accurately.
Workability was not very good. On the other hand, the slab track as shown in FIG. 6 is such that the track slab 20 is installed on the roadbed 22 and the filler 2 is placed between the track slab 20 and the roadbed 22.
4 is injected. In this structure, since the track slab has a certain length, positioning at the time of laying can be relatively easily performed. However, even if an elastic material is laid on the bottom surface of the track slab under load, very good vibration isolation performance cannot be expected due to the bending rigidity of the track slab.

An object of the present invention is to provide a labor-saving elastic sleeper direct-coupled track structure that is easy to construct while maintaining good vibration isolation performance.

[0005]

According to the present invention, a labor-saving elastic sleeper direct-coupled track structure includes a sleeper, a filler material for fixing the sleeper to a roadbed, and a sleeper and the filler material. An elastic member disposed between the elastic member and the balance.
A track girder provided between the lumbers and supporting the sleeper;
The elastic sleepers direct trajectory Structures wherein the or
The sleeper projects approximately perpendicular to the adjacent sleeper
Protrusions are provided at both left and right ends, and the track girder is
With the left and right end faces open, put the sleeper
It has a cross-shaped fitting portion that fits with the projection .

[0006] In the abbreviated elastic sleeper direct-coupled track structure of the present invention having the above structure , the sleeper has left and right end faces open.
Is supported by the track girder in the
Rainwater stays between track girder and sleeper
Can be prevented. Also, open the left and right end faces of the sleeper
The length of the track girder in the horizontal direction
And the girder becomes compact. And this
The left and right end faces of the sleeper are open like
However, the sleepers are not
Can be positioned easily
You.

In the present invention, the track girder comprises left and right rails.
It is preferable that a pair is provided along. Also ammunition
The material is adapted to the shape of the end of the sleeper with projections
Preferably, it is formed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the configuration and effect of the present invention described above, a preferred embodiment of a labor-saving elastic sleeper directly connected track structure of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a labor-saving elastic sleeper directly connected track structure as one embodiment of the present invention. The labor-saving elastic sleeper direct connection track structure of the present embodiment includes a sleeper 3 provided on a roadbed 1, a track girder 5 for supporting the same, a filling concrete 7 for fixing the track girder 5, and a sleeper 3 And track girder 5
And an elastic rubber 9 disposed on the joint surface with the elastic rubber 9. FIG.
Is a perspective view showing the sleeper 3, and FIG.
FIG. 4 is a perspective view showing the elastic rubber 9.

The sleeper 3 has a shape in which a rectangular parallelepiped main body 3a is provided with a rectangular parallelepiped protrusion 3b projecting perpendicularly to both adjacent sleepers, two at each end 3c, that is, a total of four. Have. The track girder 5 is a rectangular parallelepiped extending long, and has a single fitting groove 5 having the same width as the sum of the width of the protrusion 3b and the thickness of the elastic rubber 9c on both sides in the longitudinal direction of the upper surface 5a.
b, in the short direction, leaving a space between the parallel sleepers,
A plurality of fitting grooves 5c having the same width as the sleeper width plus the thickness of the elastic rubbers 9b on both sides are provided. The fitting groove 5b and the fitting groove 5c intersect each other vertically.
The track girder 5 is provided at each of both ends 3c of the on-orbit sleeper 3, and the end 3c is inserted into the fitting groove 5b and the fitting groove 5c in a state orthogonal to the end 3c of the line-up sleeper 3, respectively.
c is fitted. Since the sleeper 3 is supported by being fitted to the track girder 5, its main body 3a restrains displacement of the sleeper 3 in the front-rear direction, and its protrusion 3b restrains displacement in the left-right direction. . The positioning of the sleeper 3 is performed by fitting it to the track girder 5, but this operation is extremely easy. That is, it is possible to position these sleepers 3 by a very easy operation of fitting them through the elastic members 9 to the track girder 5 having a certain length.

An elastic rubber 9 is arranged on the joint surface of the sleeper 3 and the track girder 5. As shown in FIG. 4, the elastic rubber 9 includes a rectangular bottom portion 9 a, a front-rear side surface portion 9 b rising vertically from the bottom portion 9 a, and a front-rear direction side portion 9.
b, and a left-right side surface portion 9c that bends vertically. The bottom surface 9a is between the track girder 5 and the bottom 3d of the end 3c of the sleeper 3, the front-rear side surface 9b is between the track girder 5 and the side surface 3e of the end 3c, and Right and left side 9
c is disposed between the track girder 5 and the side surface 3f of the projection 3b, and supports the sleeper 3 with required elasticity in the vertical, front, rear, left and right directions. As a result, the load received from the rail is reduced, and good vibration isolation performance is obtained.

Further, on the bottom surface of the track girder 5, a filling concrete 7 is provided. The track girder 5 is fixed to the roadbed 1 by the filling concrete 7. According to this embodiment, the workability is improved, and the work is performed quickly and accurately by further providing the track girder 5 which fits well with the portion of the sleeper 3 where the elastic rubber 9 is arranged. It becomes possible. That is, the sleeper 3 can be laid with high accuracy by each easy operation including the following steps (in any order). a) The elastic rubber 9 is arranged on the joint surface between the sleeper 3 and the track girder 5, and the sleeper 3 is fitted to the track girder 5 via the elastic rubber 9; b) The track girder 5 is positioned; c) Track girder 5 by filling concrete 7
Is fixed to the roadbed 1. Note that this work procedure can be arbitrarily selected as needed.

[0012] Also, because of the assembly type, replacement of parts is advantageous. Further, since the sleeper support area is reduced, the amount of expensive rubber used can be reduced.
By releasing the end surface of the sleeper 3, it is possible to prevent stagnation of rainwater or the like even in a section with a cant.

The sleeper 3 and the track girder 5 are preferably made of a high-strength member formed of a concrete member having a PC or RC structure, but are not limited thereto, and various high-strength materials such as steel, Wood, synthetic resin materials,
And a combination thereof. The elastic rubber 9 can be of various hardnesses, but is preferably a soft plate-like highly durable rubber body. The elastic material is not limited to the above-mentioned elastic rubber, and may be urethane foam or the like, and a material having particularly high durability is preferable. The shape may be an integral structure as shown in FIG. 4 or may be composed of a single plate rubber. Further, in the present embodiment, the same type of concrete material as the sleeper 3 is used as the protrusion 3b, but the present invention is not limited to this, and various high-strength concretes and bars can be used.

In this embodiment, the protrusions 3b are provided on the side of the sleeper 3 adjacent to the track direction. However, if the protrusion 3b is fitted to the track girder 5 to restrict the displacement of the sleeper 3, the protrusion 3b may be moved in any direction. It may protrude, and the shape is arbitrary. Although concrete is used as the filler, the material is not limited as long as the track girder 5 can be fixed, and examples thereof include resin and mortar. Further, a reinforcing bar can be provided for reinforcement.

Furthermore, crushed stones and the like can be arranged inside and outside of these members as needed to enhance the sound absorbing effect. Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments at all, and it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention.

[0016]

As described in detail above, according to the labor-saving elastic sleeper direct-coupled track structure of the present invention, it is easy to arrange the sleepers with high accuracy, while maintaining good vibration isolation performance. It has an excellent effect that the workability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a labor-saving elastic sleeper direct-coupled track structure of the present embodiment.

FIG. 2 is a perspective view illustrating a sleeper according to the present embodiment.

FIG. 3 is a perspective view illustrating a track girder of the present embodiment.

FIG. 4 is a perspective view showing an elastic rubber of this embodiment for elastically covering a sleeper.

FIG. 5 is an explanatory view showing a conventional elastic sleeper directly connected track structure, wherein (a) is a plan view thereof, and (b) is a transverse sectional view thereof.

FIG. 6 is a perspective view illustrating a slab track structure.

[Explanation of symbols]

1 ... roadbed, 3 ... sleepers, 5 ... track girder, 7 ... filling concrete, 9 ... elastic rubber.

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Claims (3)

(57) [Claims] 1. A sleeper, a filler material for fixing the sleeper to a roadbed, an elastic material disposed between the sleeper and the filler material, and the elastic material and the filler material. Provided between the sow
And a track girder supporting a sleeper , wherein the sleeper is directly connected to an adjacent sleeper.
Protruding protrusions are provided at both left and right ends, and the track girder is a state in which the left and right end surfaces of the sleeper are opened.
In the state, the sleeper fits with the protrusion
A labor-saving elastic sleeper direct-coupled track structure having a fitting portion . 2. The track girder is aligned with right and left rails.
2. The labor-saving device according to claim 1, wherein a pair is provided.
Elastic sleeper direct connection track structure. 3. The pillow provided with the elastic member,
It is characterized by being formed according to the shape of the end of the hook
3. The labor-saving elastic sleeper direct connection track according to claim 1 or 2.
Structure.