JP2010037753A - Track structure - Google Patents

Abstract

In railroad crossings, rail fastening means are unnecessary, and there are injuries caused by pedestrian feet and bicycle wheels fitted in the recesses of the track foundation on which the rails are laid, and trees in the recesses. Accidents such as obstruction of trains caused by obstacles such as branches can be prevented in advance, and noise due to rail vibration during train travel can be reduced. Provided is a track structure that can be easily performed as compared with the case of filling.
In a track structure formed by laying rails 3 in recesses 2 formed in a track foundation 1, a space in the recesses 2 where the rails 3 are placed is blocked by a block block 4 and blocked. The block 4 includes a rail surface side block 4A in the inter-gauge space, a rail surface side block 4B in the inter-gauge space, a concave surface side block 4C in the inter-gauge space, and a concave surface side block 4D in the external space.
[Selection] Figure 1

Description

  The present invention eliminates the need for rail fastening means in a track structure, in particular, at a railroad crossing, etc., and injuries caused by the pedestrian's feet or bicycle wheels being fitted in the recesses of the track foundation on which the rails are laid. Accidents such as train disturbance caused by obstacles such as tree branches entering the recess can be prevented, and noise due to rail vibration during train travel can be reduced. The present invention relates to a track structure that can be easily performed as compared with the case where the entire space in the recess is filled with resin.

  A track structure such as a railroad crossing consists of a rail laid in a recess formed in a track foundation. An example of this (hereinafter referred to as a conventional track structure A) will be described with reference to the drawings. explain.

  FIG. 7 is a cross-sectional view showing a conventional track structure A. As shown in FIG.

  In FIG. 7, reference numeral 1 denotes a track foundation made of concrete pavement or the like. A recess 2 is formed on the upper surface of the track foundation 1, and a rail 3 is laid in the center of the recess 2. The rail 3 is fastened by a rail fastening means 8 on a tie plate 7 via a track pad 5 made of a rubber plate or the like. The track pad 5 has a function of adjusting the height of the rail 3, a function of absorbing vibration of the rail 3 by the wheel (W), a function of distributing the load of the wheel (W), and the like. The tie plate 7 is fixed in the recess 2 by a bolt 10 and a nut 11 via a coil spring 9. The rail fastening means 8 includes a V spring 12, a clip 13, a bolt 14, and a nut 15. The clip 13 is applied to the bottom 3 </ b> A of the rail 3 and the tie plate 7, and the nut 15 is screwed into the bolt 14 via the V spring 12. The rail 3 is fastened on the tie plate 7 via the track pad 5. The in-orbit space of the recess 2 is closed by a rubber chute 16, and the off-orbit space of the recess 2 is closed by a rubber cushioning material 17. In addition, the space in the track and the space outside the track in the recess 2 may be blocked by asphalt.

  According to the conventional track structure A, the rail 3 is firmly fastened to the track foundation 1 by the rail fastening means 8, but since the number of parts is large, a large amount of cost, time and labor are required for fastening the rail 3. To do. Moreover, since most of the rail 3 is exposed, it tends to corrode. Furthermore, there is a lot of noise from the rail 3.

  Patent Document 1 (Japanese Patent No. 3824948) discloses a track structure as shown below. Hereinafter, this track structure is referred to as a conventional track structure B and will be described with reference to the drawings.

  FIG. 8 is a cross-sectional view showing the conventional track structure B. As shown in FIG.

  As shown in FIG. 8, the conventional track structure B is provided in the recess 2 in order to lay the rail 3 through the track pad 5 in the recess 2 formed on the upper surface of the track foundation 1 made of concrete pavement or the like. The polyurethane resin 18 is filled and cured. In the figure, reference numeral 19 denotes a pipe embedded in the polyurethane resin 18 so that a signal cable or the like can be passed through the pipe 19.

  According to the conventional track structure B, the rail 3 is firmly fixed in the recess 2 by filling the polyurethane resin 18 in the recess 2 in which the rail 3 is accommodated, and curing the polyurethane resin 18. No rail fastening means is required, and the number of parts can be greatly reduced. Accordingly, the laying operation of the rail 3 is facilitated, and further, once the polyurethane resin 18 is cured, the rail 3 is not displaced and maintenance and inspection are facilitated. Furthermore, since most of the rail 3 is covered with the polyurethane resin 18, the problem of corrosion of the rail 3 is small and the noise is small.

Japanese Patent No. 3824948

  However, the conventional track structure B has the following problems.

  (1) In order to firmly fix the rail 3, it is necessary to fill the entire concave portion 2 of the track base 1 with the polyurethane resin 18 without any gaps, but the polyurethane resin 18 may not reach the details. In this case, there is a gap between the rail 3 and the polyurethane resin 18, and not only the rail 3 cannot be firmly fixed but also causes noise due to vibration.

  (2) When there is a gap between the rail 3 and the polyurethane resin 18 when the rail 3 is replaced or after a long period of use, it is necessary to remove the polyurethane resin 18 from the recess 2. Takes a lot of time and effort.

  (3) Since the entire recess portion 2 is filled with the polyurethane resin 18, a large amount of resin is required.

  (4) Since a clip or the like for fixing the rail 3 is not used, it cannot be used until the polyurethane resin 18 is completely cured, and is unsuitable for construction for a short time.

  Therefore, the inventors of the present application have obtained the following knowledge as a result of intensive studies to solve the above-mentioned problems of the conventional track structure B.

  (A) Rather than filling the recess of the track foundation with a blocking material such as resin and curing it, a blocking block that matches the shape of the recess is made in advance, and this blocking block is placed in the recess to If closed, the rail can be laid in a short time without using the rail fastening means, and the blocking material can be easily removed from the recess when the rail is replaced.

  (B) If the block is divided into a plurality of blocks, the block can be easily placed in the recess. Further, if the block is bonded with an injection resin, the block can be firmly fixed without gaps. As a result, the problem of noise caused by vibration does not occur.

  (C) If a protrusion is formed on the contact surface of the block with the rail and the recess, a gap is formed between the block and the rail and the recess, so that the resin for bonding the block to the rail and the recess Injection is easy.

  The present invention has been made on the basis of the above-described knowledge, and does not require rail fastening means at a railroad crossing or the like, and a pedestrian's foot or a wheel such as a bicycle fits in a recess of a track foundation on which the rail is laid. Can prevent accidents such as train running obstruction due to injuries caused by entanglement and obstacles such as tree branches entering the recess, and noise due to rail vibration during train running can be reduced. Furthermore, it is an object of the present invention to provide a track structure in which rail replacement can be easily performed as compared with a case where resin is filled in the entire space in the recess.

  The present invention has been made to achieve the above-described object, and is characterized by the following.

  The invention according to claim 1 is a track structure comprising a rail laid in a recess formed in a track foundation, and in the space in the recess where the rail is placed, the space between the rails and the space between the rails Each outer space is characterized by being blocked by a plurality of closed blocks.

  The invention according to claim 2 is the invention according to claim 1, wherein the closing block includes a rail surface side block of the inner space, a rail surface side block of the outer space, a concave surface side block of the inner space, and It is characterized by comprising a concave surface side block in the outer space between the gauges.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the rail surface side block of the inner space between the rails, the rail surface side block and the rail of the outer space between the rails, and the concave surface side of the inner space between the rails. The block and the concave surface side block and the concave portion of the outer space between the rails, the rail surface side block of the inner space between the rails and the concave surface side block of the inner space between the rails, and the rail surface side block and the outer surface of the outer space between the rails The concave surface side block of the space is characterized in that it is bonded with an injected resin.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the rail surface side block of the inner space between the rails and the rail surface side block of the outer space between the rails are connected to the rails. A plurality of protrusions are formed on the contact surface and the contact surface with the recess of the recess surface side block of the inner space and the recess surface side block of the outer space. Is.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, characterized in that the rail is placed on a track pad.

  A sixth aspect of the invention is characterized in that, in the invention according to any one of the first to fifth aspects, the blocking block is made of a resin.

  According to the present invention, rail fastening means is not required at a railroad crossing or the like, and an injury caused by a pedestrian's foot or a wheel of a bicycle or the like being fitted in a concave portion of a track foundation on which the rail is laid or in the concave portion. Can prevent accidents such as train obstruction due to obstacles such as tree branches entering the door, and can reduce noise caused by rail vibration during train travel. This is easier than in the case where the entire space in the recess is filled.

  Next, one embodiment of the track structure of the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view showing the track structure of the present invention, and FIG. 2 is an explanatory view of the space inside the gauge and the space outside the gauge.

  In FIG. 1, reference numeral 1 denotes a track foundation made of concrete pavement or the like. A recess 2 is formed on the upper surface of the track foundation 1, and a rail 3 is fixed to the center of the recess 2 by a block 4. Has been. The closing block 4 is made of a resin such as polyurethane, and is installed in the inner space 2A and the outer space 2B of the recess 2 as shown in FIG. Under the bottom 3A of the rail 3, a track pad 5 made of a rubber plate or the like bonded with an adhesive is laid. The track pad 5 has a function of adjusting the height of the rail 3, a function of absorbing vibration of the rail 3 by the wheel (W), a function of distributing the load of the wheel (W), and the like.

  The closed block 4 includes a rail surface side block 4A in the space between the rails as shown in FIG. 3, a rail surface side block 4B in the space outside the rails as shown in FIG. 5, and a rail inside block as shown in FIG. It consists of a concave surface side block 4C in the space and a concave surface side block 4D in the space outside the gauge as shown in FIG.

  One surface of the rail surface side block 4A (the surface in contact with the inner surface of the rail 3) of the rail inner space is curved so as to be in close contact with the upper surface of the bottom 3A, the abdomen 3B, and the lower surface of the head 3C of the rail 3, and the other The surface is flat. One surface of the rail surface side block 4B (the surface in contact with the outer surface of the rail 3) in the outer space between the rails is curved so as to be in close contact with the upper surface of the bottom portion 3A, the abdominal portion 3B, the lower surface and the side surface of the head portion 3C. The other surface is a flat surface.

  The concave surface side block 4C in the inner space has a rectangular parallelepiped shape, and the height thereof is equal to the height of the rail surface side block 4A in the inner space. The concave surface side block 4D in the outer space between the rails is a rectangular parallelepiped, and the height thereof is equal to the height of the rail surface side block 4B in the outer space between the rails. The concave surface side block 4C in the inner space is inserted between the rail surface side block 4A in the inner space and the inner surface of the concave portion 2, and the concave surface side block 4D in the outer space is the rail surface of the outer space. It is inserted between the side block 4B and the outer surface of the recess 2.

  The contact surface of the rail surface side block 4A in the rail inner space and the rail surface side block 4B in the outer rail space with the rail 3, the concave surface side block 4C in the inner rail space, and the concave surface side block 4D in the outer rail space. A plurality of protrusions 6 are formed on the contact surface with the recess 2 at intervals. By forming the projections 6 in this way, the rail surface side block 4A in the inner space and the rail surface side block 4B and rail 3 in the outer space, and the concave surface side block 4C and the outer space in the inner space are provided. A gap is formed between the concave surface side block 4D and the concave portion 2, so that the resin can be easily injected into the adhesive surface.

  Further, between the rail surface side block 4A in the gauge inner space and the recess surface side block 4C in the gauge inner space, and between the rail surface side block 4B in the outer gauge space and the recess surface side block 4D in the outer gauge space. However, there is a gap so that the resin can be easily injected.

  As a result, the rail surface side block 4A in the inner space, the rail surface side block 4B and the rail 3 in the outer space, the concave surface side block 4C in the inner space, the concave surface side block 4D and the outer space 2 in the outer space, and the gap The rail surface side block 4A of the inner space, the concave surface side block 4C of the inner space between the rails, and the rail surface side block 4B of the outer space between the rails and the concave surface side block 4D of the outer space between the rails are firmly bonded to each other, 3 is securely fixed.

  In order to construct the track structure of the present invention configured as described above, the track pad 5 is laid on the center of the recess 2 of the track foundation 1 with an adhesive, and the rail 3 is placed on the track pad 5. Place it and position the rail 3.

  Next, the rail surface side block 4A of the inner space between the rails and the rail surface side block 4B of the outer space between the rails are respectively installed on the rails 3, and thereafter the concave surface side block 4C of the inner space between the rails is connected to the rail surface side block of the inner space. 4A and the inner surface of the recess 2 are inserted, and the recess surface side block 4D in the outer space between the rails is inserted between the rail surface side block 4B in the outer space and the outer surface of the recess 2. At this time, the rail surface side block 4A in the inner space, the rail surface side block 4B and the rail 3 in the outer space, the concave surface side block 4C in the inner space, the concave surface side block 4D and the outer space 2 in the outer space. A gap is formed by the protrusion 6. Further, between the rail surface side block 4A in the gauge inner space and the recess surface side block 4C in the gauge inner space, and between the rail surface side block 4B in the outer gauge space and the recess surface side block 4D in the outer gauge space. A gap is also formed.

  In this way, when all the blocking blocks 4 are installed in the recesses 2, the resin (P) is injected into the gaps and cured. The insertion of the block 4 and the resin injection operation may be performed on each side of the rail 3.

  In this way, the rails 3 are firmly fixed to the track foundation 1 by bonding the respective blocking blocks 4.

  The present invention can be applied to a track structure of a tram other than a railroad crossing. Further, the present invention can be applied to a curved track as well as a straight track. In the case of a curved track, each block 4 may be curved or divided into a predetermined length according to the curvature of the rail. Furthermore, the length of the closing block 4 in the axial direction is appropriately adjusted in consideration of workability. The closed block 4 divided into a predetermined length may be finally bonded to one, but may be kept divided.

  As described above, according to the present invention, since the rail is fixed by the closing block at a railroad crossing or the like, the rail fastening means is not required, so that the rail laying operation can be easily performed. In addition, since the concave portion of the track foundation on which the rail is laid is closed, an injury such as a pedestrian's foot or a bicycle wheel fitted in the concave portion or an obstacle such as a tree branch in the concave portion. It is possible to prevent accidents such as obstruction of train running due to entering. In addition, noise caused by rail vibration during train traveling is absorbed by the block, and therefore further reduced by a synergistic effect with the vibration absorption effect of the track pad. Further, when the rail is replaced, the operation of removing the blocking block from the concave portion can be easily performed as compared with the case where the blocking material is blocked and the resin is filled and cured.

It is sectional drawing which shows the track | orbit structure of this invention. It is explanatory drawing of the space between gauges, and the space outside a gauge. It is a fragmentary perspective view which shows the rail surface side block of the space between gauges. It is a fragmentary perspective view which shows the recessed surface side block of the space between gauges. It is a fragmentary perspective view which shows the rail surface side block of the space outside a gauge. It is a fragmentary perspective view which shows the recessed surface side block of the outer space between gauges. It is sectional drawing which shows the conventional track structure A. It is sectional drawing which shows the conventional track structure B.

Explanation of symbols

1: Track base 2: Recess 3: Rail 3A: Bottom 3B: Abdomen 3C: Head 4: Blocking block 4A: Rail surface side block 4B in the space between the rails 4B: Rail surface side block 4C in the space outside the rails: Space in the rails Recessed surface side block 4D: Recessed surface side block of the space outside the gauge 5: Track pad 6: Protrusion 7: Tie plate 8: Rail fastening means 9: Coil spring 10: Bolt 11: Nut 12: V spring 13: Clip 14: Bolt 15: Nut 16: Rubber sheet 17: Buffer material 18: Polyurethane resin 19: Pipe

Claims (6)

In the track structure consisting of a rail laid in a recess formed in the track foundation,
A track structure, wherein in the space in the recess in which the rail is placed, the space between the rails and the space outside the rails are respectively closed by a plurality of blocking blocks.   The closed block is composed of a rail surface side block of the inner space, a rail surface side block of the outer space, a concave surface side block of the inner space, and a concave surface side block of the outer space. The track structure according to claim 1.   Rail surface side block of the inter-gauge space, rail surface side block and the rail of the inter-gauge space, concave surface side block of the inter-gauge space, concave surface side block of the inter-gauge space, the concave portion, and the inter-gauge space The rail surface side block of the rail and the concave surface side block of the inner space between the rails, and the rail surface side block of the outer space between the rails and the concave surface side block of the outer space between the rails are respectively bonded by an injection resin. The track structure according to claim 1, wherein the track structure is characterized.   The contact surface with the rail of the rail surface side block of the inner space and the rail surface side block of the outer space, and the concave surface side block of the inner space and the concave surface side block of the outer space. The track structure according to any one of claims 1 to 3, wherein a plurality of protrusions are formed on each contact surface with the recess.   The track structure according to claim 1, wherein the rail is placed on a track pad.   The track structure according to any one of claims 1 to 5, wherein the blocking block is made of resin.

Images