JPH0332564Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a level crossing installed at the intersection of a railway track and a road.

Conventional technology A variety of structures are used for railroad crossings depending on the width of the road, the size of passing vehicles, etc., but the most commonly used structure nationwide is sleepers with rails tied together. Pavement boards made of wood, concrete, plastic, etc. are laid on top, and these are fixed to the sleepers with nails, bolts, etc. to integrate them. This conventional structure has the advantage that the members are lightweight, no machinery such as a crane is required, and anyone can carry out the construction easily and quickly. However, with this conventional structure, as the amount of automobile traffic increases, the nails and bolts that fasten the pavement boards become loose, causing the entire structure to wobble, resulting in a lack of safety and the need for frequent maintenance work, making it uneconomical. There was a drawback.

Problems to be Solved by the Invention The purpose of the invention is to provide a level crossing that eliminates the above-mentioned drawbacks of conventional level crossings.

Means for Solving the Problem This proposal has a space on the sleeper between the rails and on the outside of the rail, in which the rail fastening device can be inserted on the lower surface, and the length is such that both ends coincide with the center of the sleeper in the rail direction. One or more main pavement boards and a short end pavement board having the above-mentioned void space and touching the outermost end of the main pavement board are arranged in a double row so that their upper surfaces are substantially flush with the rail and are in contact with each other in the rail direction. The anchors are installed in a line and are embedded and fixed in the center of the sleepers supporting both ends of each main pavement board in each row in the direction of the rails.The protruding parts of the anchors on the sleepers have an L-shaped opening in the lower part in the direction perpendicular to the rails. holes are provided in the main pavement board and the end pavement board, and vertical holes are provided in the main pavement board and the end pavement board that are aligned in the rail direction within the alignment vertical plane of the upper edge of the L-shaped hole in the alignment and laying state, and each main pavement board and the end pavement A condition in which a notch with a side wall sufficiently far away from the anchor protruding part in the rail direction is provided at the bottom of the joint surface of the plate, a vertical hole is opened in the side wall, and the upper edge of the L-shaped hole is lowered by a predetermined amount than the lower surface of the opening. A railroad crossing is constructed by applying sufficient tension to a wire rope inserted through all the vertical holes and the L-shaped hole to fix the pavement board to the sleepers, and securing it with clips to the outer end surface of the end pavement board. shall be.

Function Anchors for fixing the main pavement board and end pavement board are embedded in advance in the sleepers, and wire ropes are inserted into the vertical holes of the end pavement board and main pavement board, and the anchors are inserted at the joints of the pavement boards. The pavement boards are inserted into the L-shaped holes and sequentially aligned and laid on the sleepers along the rail. At the pavement board joint, the wire rope is bent into a V-shape and inserted into the L-shaped hole from the vertical hole. After completing the alignment and laying of the required number of main pavement boards and end pavement boards at both ends, attach a clip to one end of the wire rope to prevent it from coming off, and by pulling the other end moderately, the wire rope can be bent in a V-shape. The pavement board is pressed onto the sleeper by means of the vertical force generated in the section. Next, attach a clip to the other end of the wire rope to secure the wire rope.

When the wire rope is pulled, the wire rope will slightly slide inside the vertical hole and the L-shaped hole, so the lower edge of the opening of the vertical hole and the upper edge of the L-shaped hole should be rounded to make it easier to slide, and the angle of the V-shaped hole should be rounded. It is preferable to make the angle obtuse to increase the vertical component force when the wire rope is pulled.

By removing the clips, the pavement board can be easily separated from the sleepers.

Example In the figure, 1 and 1 are rails, 2 are sleepers laid at approximately regular intervals in the rail direction (hereinafter referred to as the longitudinal direction), and 3a is a sleeper 2 above the rails 1 and 1 between the rails 1 and 1 in the part that becomes the road of the railroad crossing. The main pavement boards 3b are laid on the sleepers 2 in two rows of three in front and in front of each other, and the main pavement boards 3b are also in contact with the outside of the rail 1 and are laid on the sleepers 2 at the same longitudinal position as the main pavement boards 3a. It is. In this embodiment, the main pavement boards 3a, 3b have a length twice as long as the sleeper interval, but generally the length can be set to an appropriate integral multiple. Main pavement board 3
The upper surfaces of a and 3b are almost flush with the rail, and the side surfaces of the two rows of main pavement boards 3a are in contact with each other, and the side in contact with the rail 1 has a cutout groove 4 that serves as a passage for the wheel flange.
are formed, and the lower portions of the main pavement boards 3a, 3b fit into the rail flange 1a at the notched grooves 5.

The front and rear ends of the main pavement boards 3a and 3b are both located at the center of the sleeper 2 in the longitudinal direction, and the main pavement board 3a and End pavement boards 3c and 3d having the same notch grooves 4 and 5 as 3b abut, respectively. Each pavement board 3a,
3b, 3c, and 3d are provided with a cavity 6 on the lower surface into which the rail fastening device can fit, and can make good contact with the upper surface of the sleeper 2. Main pavement board 3a, 3
b and the end pavement boards 3c and 3d are each made of plastic, concrete, wood, or the like.

A screw plug 7 is embedded and fixed in the vertical center of the sleeper 2 where the ends of the main pavement boards 3a, 3b are located and in a horizontal position close to the empty space 6, and the anchor 8 is screwed into the center screw hole. The protruding part 9 on the sleeper has an opening 1 at the bottom with a vertically long elongated hole.
An L-shaped hole 11 having a diameter of 0 is formed.

On the other hand, a notch 14 having a side wall 13 which is higher than the anchor protruding portion 9 and sufficiently spaced apart in the longitudinal direction is provided at the lower part of the joint surface 12 of each pavement board 3a, 3b, 3c, 3d. Vertical holes 15 opening in the side wall 13 are provided so as to be aligned in the vertical direction in the aligned vertical plane. The vertical hole 15 is formed by embedding a tube 16 as necessary. The L-shaped hole 11 is surrounded by front and rear notches 14, and the vertical hole 15 is provided at a height such that its lower surface is higher than the upper edge 17 of the L-shaped hole 11.

To form the proposed railway crossing, wire ropes 18 are inserted into the vertical holes 15 in the longitudinal arrangement order of the pavement boards in each row shown in FIG. The sequential pavement boards 3a and 3c are laid at predetermined positions on the sleepers 2, with the wire ropes 18 being inserted into the L-shaped holes 11 at the ends of each main pavement board, with the wire ropes 18 being fixed to the end faces through washers 20 to prevent them from coming off. ,
After all the pavement boards 3a, 3c of the row have been laid, the wire rope 1 is pressed forward while pressing the rear pavement section 3c.
8 to the rear, and the other end of the wire rope 18 is fixed with the washer 20 and the clip 19 so as not to come off.

At that time, the wire rope 18 is inserted into the notch 14.
are bent into a V-shape as shown in FIG.
c are pressed against each other in the longitudinal direction and fixed to the sleeper 2 as a unit. The above operations are performed for the other rows of pavement boards to form the railroad crossing.

The angle of the V shape is an obtuse angle, and in practical terms, the upper edge of the L-shaped hole 11 is 1 to 2 cm from the lower inner surface of the vertical hole 15.
It may be selected so that the distance between the opposing side walls 13 is about 10 cm.

Effects of the invention This invention has the above-mentioned configuration, in which the pavement boards in each row of the railroad crossing are integrally connected by the tensile force of one wire rope, and at the same time, both ends of each pavement board are fixed to the sleepers. Since no nails, bolts, etc. are used, there is no loosening caused by these, maintenance work and installation work are extremely simple, and there is an effect that the level crossing can be constructed economically.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view;
Figure 2 is a sectional view taken along the line A-A in Figure 1, Figure 3 is a side view, Figure 4 is an enlarged sectional view taken along the line B-B in Figure 1, and Figure 5 is an enlarged sectional view taken along the line B-B in Figure 1.
6 are an elevational view and a side view, respectively, of the anchor. 1...Rail, 2...Sleepers, 3a, 3b...
...Main pavement board, 3c, 3d... End pavement board, 6...
Blank space, 8...Anchor, 9...Protruding part, 10...
...Opening, 11...L-shaped hole, 12...Joint surface, 13
... Side wall, 14 ... Notch, 15 ... Vertical hole, 17
...Top edge, 18...Wire rope, 19...Clip.

Claims (1)

[Scope of utility model registration request] One or more main pavement boards having a cavity on the lower surface into which a rail fastening device can be inserted between the rails and on the outside of the rail, and whose lengths coincide with the center of the sleeper in the rail direction, and the cavity; A short end pavement board that is in contact with the outermost end of the main pavement board and a short end pavement board that is in contact with the outermost end of the main pavement board are arranged in double rows with their upper surfaces almost flush with the rail and in contact with each other in the rail direction, and each main pavement board is laid in two rows in each row. An L-shaped hole with a lower notch opening perpendicular to the rail is provided in the protruding part of the anchor embedded and fixed in the center of the sleeper in the rail direction of the sleeper supporting both ends of the board, and the main pavement board and end pavement are Vertical holes are provided in the boards that are aligned in the rail direction within the alignment vertical plane of the upper edge of the L-shaped hole in the aligned and laid state, and anchor protruding portions are provided at the bottom of the joint surface of each main pavement board and end pavement board. A vertical hole is opened in the side wall by providing a notch with a side wall that is higher and sufficiently far away in the rail direction, and with the upper edge of the L-shaped hole lowered by a predetermined amount than the lower surface of the opening, a full vertical hole and an L-shaped hole are formed. A railroad crossing in which sufficient tension is applied to a wire rope inserted through the bridge to fix the pavement board to the sleepers, and the wire rope is secured to the outer end surface of the end pavement board with a clip.