JPH10204804A - Structure of longitudinal sleeper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make installation work easier by providing a linkage U-groove of tie rod to be fastened to the side face of other longitudinal sleeper facing in pair the side face of a metal sleeper as a metal sleeper having a longitudinal box shape with the bottom opened and having a rail fixing portion at the top plate. SOLUTION: A longitudinal sleeper 1 is made of metal, has a rail fixing portion 3 at a top plate 2, and is formed to a longitudinal box shape with an opened bottom portion 4. At the side face of a sleeper 1, provided is a linking U-groove 5 for a tie rod 6 fastened to the side face of other longitudinal sleeper 1 which faces and forms a pair. When laying the longitudinal sleeper 1 connecting the longitudinal sleepers 1 together, the tie rod 6 with built-in parts required such as nuts 7, insulation packing 9 and the like is inserted to a linking U-grooves 5, 5 between the sleepers and then the setting of the tie rod 6 is completed and then only additional tightening of the nut 7 is required. Therefore, the fitting of the tie rod becomes easier compared to the conventional insertion and also pull-out can be prevented after the fastening.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an improved structure for a vertical sleeper.

[0002]

2. Description of the Related Art As an alternative to the conventional wooden sleepers and concrete sleepers, box-shaped metal sleepers having an open bottom have been proposed. Since this box-shaped metal sleeper is hollow, the inside is extremely light, and since it is made of cast iron or the like, an extremely strong sleeper can be provided.

Conventionally, sleepers have been generally arranged in a direction perpendicular to the rails. However, in this arrangement, in the case of long rails which are frequently used in recent years, there is a problem that the track bed lateral resistance, that is, the bed floor resistance per one side of the rail in a direction perpendicular to the track is not sufficiently obtained. In order to solve such a problem, the present applicant has proposed a vertical sleeper structure in which the sleepers are arranged in a direction along the rail (for example, Japanese Patent Laid-Open No. 5-255902).

[0004] With this proposal, the lateral resistance of the roadbed has been dramatically increased, and it has become possible to use it suitably as a sleeper in a long rail section. However, since the vertical sleepers independently support a pair of rails, it is necessary to connect the rails so that the distance between the two rails does not fluctuate. For this reason, the vertical sleepers have an H shape or a T shape in plan view. (For example, JP-A-5-255901).

[0005]

However, the sleeper having the above-mentioned shape has a drawback that it is difficult to handle because it has a complicated contour shape, and it is difficult to handle it, such as taking up space for transportation and storage after the manufacture.

Further, slacks are provided at the curved portions of the rails to widen the interval between the rails.
In the case of a mold sleeper, the position of the fastener must be adjusted because the sleeper interval is constant, and there is a drawback that the mounting adjustment work is troublesome.

[0007] However, such a problem can be solved if the vertical sleepers are fastened with tie rods, so that the interval between them can be easily adjusted. However, the tie rods are inserted into the insertion holes formed in the side surfaces of the vertical sleepers and the nuts are screwed. Since the fitting and the fastening are performed, it takes much time compared with the fastening work of, for example, snap-fitting. That was a problem of inefficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has been made to provide a structure of a vertical sleeper which can be easily manufactured and can be easily mounted. It is.

[0009]

That is, the structure of the vertical sleeper of the present invention is a metal sleeper having a vertical box shape having a rail fastening portion on a top plate and an open bottom. The metal sleeper is characterized in that a side surface of the sleeper is provided with a U-groove for engaging a tie rod to be fastened to another vertical sleeper side facing the pair.

Another invention is a vertical box-shaped metal sleeper having a rail fastening portion on a top plate and an open bottom, wherein a U-hole is provided on a side surface of the metal sleeper. On both sides of the opening of the U-hole, protrusions for preventing a nut from being screwed into a tie rod are provided.

[0011]

Next, an embodiment of the present invention will be described. FIG. 1 is a plan view showing an embodiment of the present invention, and FIG.
3 is a side view of the main part, FIG. 3 is an enlarged plan view of the main part, and FIG. 4 is a sectional view taken along line XX of FIG.

The structure of the vertical sleeper according to the present invention is as follows.
A metal sleeper 1 in the form of a vertical box having a rail fastening portion 3 and an open bottom 4, and another vertical sleeper facing a side surface of the metal sleeper 1 in a pair. Gi 1 side 1
An engagement U-groove 5 of a tie rod 6 to be fastened to A is provided.

The engaging U-shaped groove 5 has an opening width d into which the tie rod 6 can be fitted and through which the nut 7 cannot pass. In the above description, the shape of the U groove 5 is such that the bracket 1 is provided on the bottom side surface of the metal sleeper 1 as shown in FIG.
1B are integrally formed and provided on the brackets 1B... 1B so as to open upward.

The position of the U-groove 5 is not limited to the above-mentioned bracket, and may be directly provided on the side of the metal sleeper 1 as shown in FIG. And the outer surface may be a fastening surface.

Therefore, when the vertical sleepers 1 are laid and the opposing vertical sleepers 1 are connected to each other, the tie rods 6 incorporating necessary parts such as nuts 7 and washers and insulating packings 9 are connected to the sleepers. The fitting of the tie rods 6 is completed by fitting them into the joint U-grooves 5, 5, and after that, the tightening of the nuts 7 only needs to be performed and the operation is greatly simplified.

In the drawing, L indicates a rail. Next, an embodiment of another vertical sleeper structure will be described. A metal sleeper 1 having a vertical box shape having a rail fastening portion 3 on a top plate 2 and an open bottom 4, and a U groove 5 is provided on a side surface of the metal sleeper 1. On both sides of the opening of the groove 5, protrusions 8 and 8 for preventing the nut 7 from being screwed into the tie rod 6 are provided.

The nut retaining projections 8 provided on both side surfaces of the U-groove 5 only need to prevent the nut 7 or the insulating packing 9 fastened to the tie rod 6 from coming off.
Therefore, it is not always necessary to have a height capable of abutting the entire nut 7, but it is sufficient if the nut 7 is hooked.

The tie rod 6 is attached to the vertical sleeper.
Tie rod 6 in which insulating packing 9 and nut 7 are screw-fitted is fitted from the opening surface of U-groove 5 in accordance with the spacing of vertical sleepers 1 arranged according to the rail spacing. When the tie rod 6 is located at the bottom, the temporary fixing of the tie rod 6 is completed.

If the nut 7 is tightened and tightened, the vertical sleepers 1 and 1 are securely fastened to each other, and even if vibrations or the like are applied, the nut 7 is prevented from coming out of the tie rod 6 by the retaining projection 8. You.

When the protrusion for retaining is provided directly on the side surface of the metal sleeper 1 as shown in FIG. 5, the rib 8A formed at the opening edge can also be used.

[0021]

As described above, according to the present invention, since the U-groove is formed on the side surface of the vertical sleeper and the retaining protrusion is provided on the opening side surface, the fitting of the tie rod can be performed by the conventional insertion. It is very easy as compared with that of the first embodiment, and has an effect of preventing slipping out even after fastening.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a main part side view showing the embodiment of the present invention.

FIG. 3 is an enlarged plan view of a main part of FIG. 1;

FIG. 4 is a sectional view taken along line XX of FIG. 3;

FIG. 5 is a side view of a main part of another embodiment.

FIG. 6 is a cross-sectional view of still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Vertical sleeper 2 ... Top plate 3 ... Rail fastening part 4 ... Bottom part 5 ... U groove 6 ... Tie rod 7 ... Nut 8 ... Retaining projection 9 ... Insulation packing

Claims (2)

[Claims] 1. A metal sleeper having a rail-fixing portion on a top plate and a bottom-opening vertical box-shaped metal sleeper having a rail-fixing portion on the top plate and an open bottom portion. A metal tie comprising a U-groove for engagement of a tie rod to be fastened to a side surface of the other metal sleeper, which is formed in a pair, on a side surface of the metal sleeper. Vertical sleeper structure. 2. A vertical box-shaped metal sleeper having a rail fastening portion on a top plate and an open bottom, wherein a U-hole is provided on a side surface of the metal sleeper. A structure of a vertical sleeper, wherein projections for retaining a nut screwed to a tie rod are provided on both side surfaces of the opening.