JP6281821B2 - Two block sleepers for railway - Google Patents

Description

  The present invention relates to sleepers used for railway tracks.

  Conventionally, as shown in FIG. 6, as a sleeper used for a ballast track of a railway track, a so-called two-block sleeper in which two reinforced concrete blocks a and a provided at intervals are connected by a steel connecting material b. Was used.

  In addition, the rails c and c are placed on the track pads d and d, and the rails c are fastened with fastening members (not shown), and the lower portions of the fastening members are buried in the reinforced concrete blocks a, and the connecting material It was connected to b.

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  In the conventional example, the electrical insulation of the concrete block itself is not small, a reinforcing bar is disposed in the block, and the two concrete blocks are connected by a steel connecting material, and the rail is fastened. The lower part is embedded in the block and connected to the connecting material b, so that the electrical insulation is small and it is difficult to insulate the left and right rails in order to form a signal circuit.

  Also, the two blocks were made of concrete, so they were hard and had a strong impact with the ballast when passing through the train.

  Furthermore, the concrete sleepers with reinforcing bars are heavy and the workability of installation etc. is poor.

  An object of the present invention is to eliminate the drawbacks of the conventional example.

First means of the invention, filled with a filler having an electrically insulating synthetic resin blocks of the left and right pair of spaced apart, tied technique a block of the pair in steel ties Each of the synthetic resin blocks is welded to the bottom surface of the tie plate, the first steel anchor material, and the second and third steel anchor materials welded to the steel plate attached to the bottom surface of each block. Is embedded at the time of molding, and the first, second, and third anchor materials are spaced apart from the connecting material portions embedded in the respective blocks.

The second means of the present invention is characterized in that, in the first means, each synthetic resin block has a steel plate attached to the bottom surface and an elastic material adhered to the steel plate bottom surface. .

  According to the first aspect of the present invention, since a pair of blocks made of an electrical insulator is filled with a filler having an electrical insulation property, it is possible to take an insulation separation from each of the connecting materials. The signal circuit can be configured by insulating the rail.

  Moreover, it is much lighter, easier to work, cheaper to manufacture, and stronger than a concrete sleeper with steel bars.

In particular , since the tie plate and the bottom steel plate are securely attached, and the various anchor materials embedded in each block and the connecting material portions are spaced apart from each other, there is no problem in electrical insulation.

According to the second aspect of the present invention, in the first aspect of the present invention, the steel plate located on the bottom surface of the left and right blocks further includes a buffering means, and elasticity can be provided between the sleeper bottom surface and the ballast. The impact with the ballast when passing through the train can be avoided.

1 is an overall front view of the present invention. It is the disassembled perspective view which abbreviate | omitted one block of this invention, these attachment members, and the intermediate part of the joining material. It is an AA expanded sectional view which shows the principal part of this invention. It is a BB expanded sectional view same as the above. It is CC expanded sectional drawing same as the above. It is a schematic explanatory drawing of a prior art example.

  A pair of left and right synthetic resin blocks 1 and 1 are provided at intervals. Each block 1 has electrical insulation. The blocks 1 and 1 made of this synthetic resin may or may not have foaming properties. Specific examples include foaming urethane resins and EPDM.

  Each block 1 is filled with, for example, glass fiber as lightweight fillers 2, 2, 2,... Having electrical insulation.

  The pair of blocks 1 and 1 are connected by a connecting material 3. At this time, the connecting material portion 30 which is each end of the connecting material 3 is embedded up to approximately 3/4 position in the longitudinal direction of each block 1. The connecting material 3 is a steel angle in this example, but may be a T-shaped steel material, a steel channel material, or an H-shaped steel material.

  In the figure, reference numeral 11 is a rail, and 12 is a rail fastening bracket, both of which are well known.

  In this figure, the tie plate 4 is shown in the shape shown in the figure, but this is also well known in the art, and detailed description of these members will be omitted. The tie plate 4 may be a flat steel plate.

  As shown in FIGS. 1, 2, and 4, the first anchor members 5, 5, 5, and 5 made of steel are attached to the back surface of the tie plate 4 by welding, and the steel plates 6 that are in contact with the back surface of each block 1 are attached. The second and third anchor members 7, 7, 8, 8 made of steel are attached by welding to the ends in the longitudinal direction.

  The anchor members 5, 5, 5, 5, 7, 7, 8, 8 are crank-shaped and are opposed to each other when embedded in each block 1. The reason for this is to prevent the anchor members 5, 7, 8 from coming into contact with each other without bringing them close to the connecting member 3 in position. Each anchor material may be a bent steel round bar.

  The connecting material portion 30 and the first to third anchor members 5, 7, and 8 are simultaneously formed with the respective blocks 1, and are firmly joined to each other. The tie plate 4 is on the upper surface of each block 1, and the steel plate 6 is Securely fix to the bottom of block 1.

  An elastic material 9 (for example, SBR rubber or various synthetic resins having elasticity) is attached to the steel plate 6.

  Each block 1 body is made of synthetic resin. The inside filler 2 has electrical insulation. Each 1st-3rd anchor material should be spaced apart from a connecting material. The electrical insulation is extremely good, and the right and left rails can be easily insulated to form a signal circuit. Of course, the above configuration avoids a strong impact with the ballast when passing through the train as described above. Good quality is possible.

DESCRIPTION OF SYMBOLS 1 Block 2 Filler 3 Connecting material 4 Tie plate 5 1st anchor material 6 Steel plate 7 2nd anchor material 8 3rd anchor material 9 Elastic material 30 Connecting material part

Claims (2)

Filled with a filler having an electrically insulating synthetic resin blocks of the left and right pair of spaced apart, in a two-block railroad tie for tether rail blocks of said pair with steel ties, Each block made of synthetic resin has a first steel anchor material welded to the bottom surface of the tie plate, and second and third steel anchor materials welded to a steel plate attached to the bottom surface of each block. A two-block sleeper for railways , which is embedded at the time of molding, and wherein the first, second, and third anchor members are spaced apart from the connecting member portion embedded in each block . The two-block sleeper for railways according to claim 1 , wherein each synthetic resin block has a steel plate attached to the bottom surface and an elastic material attached to the bottom surface of the steel plate .

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