JP4828616B2 - Ballast screen - Google Patents

Description

  The present invention relates to a ballast screen that covers a ballast that supports railroad rails.

  Conventionally, ballast roadbeds using gravel, crushed stone and other ballasts are widely used on railway tracks. In cold regions, snow or the like may adhere and freeze on the bottom of a railway vehicle, resulting in ice blocks. If this ice block falls on a ballast from a railway vehicle that travels at high speed, the impact of the impacted ice block may cause ballast such as gravel and crushed stones to scatter, which is a problem. In addition, due to the recent increase in speed of railway vehicles, there is a possibility that the ballast is wound up and collides with the vehicle or the like due to the wind generated by the railway vehicles or the vacuum phenomenon generated in the lower part of the vehicle. For this reason, a technique for preventing ballast scattering by covering the ballast surface with a sheet called a rubber ballast screen has been proposed.

  For example, in Patent Document 1, an intermediate net that is placed through a railroad rail on a ballast in an area between sleepers and an outer sleeper that is placed in both areas from both sides of the sleeper. There is disclosed a ballast screen that includes a net and is connected to each other via a connector between edges of the middle net and the outer net arranged side by side, and the outer net is fixed to a track by an anchor.

Japanese Utility Model Publication No. 61-141301

  However, the above technique has a drawback that it takes time to remove and re-lay the ballast screen. That is, when the ballast screen is removed due to track maintenance work such as multiple tie tamper (MTT), the ballast screen will be displayed during the night before the first train passes after the last train passes. It must be restored (combined) to the laid state.

  However, the current ballast screen as described above requires a great deal of time for removal and restoration, and it is difficult to restore it within the night when the construction extension of the railway line is long. In other words, since the ballast screen as described above is large and heavy, it is necessary to remove the ballast screen when exposing the ballast surface in the track maintenance section or to re-cover the ballast screen after the track maintenance has been completed with the ballast screen. The burden on the operator in laying work is large and the work time is also long. Therefore, the actual situation is that there are restrictions on the extension of construction.

  The present invention has been made in consideration of such a situation, and the purpose of the present invention is to perform operations associated with the exposure and re-covering of the ballast surface for track maintenance on a track laid with a ballast screen. The object is to provide a ballast screen that can be facilitated.

  The present invention is a ballast screen that covers a ballast that supports railroad rails, and includes a fixed covering member and a movable covering member that cover the ballast, and the movable covering member is not accompanied by movement of at least a part of the fixed covering member. The ballast screen can expose the ballast in the vicinity of the rail for the railway.

  In track maintenance work using multiple tie tampers, etc., the ballast near the railroad rail, that is, the MTT tool is inserted and the ballast is squeezed, and the ballast is moved under the sleeper to move the railroad rail to the specified height and position. It is sufficient to expose only the ballast surface necessary for the work to be corrected. Therefore, according to this configuration, the movable covering member that covers the ballast can expose the ballast in the vicinity of the rail for the rail without the movement of at least a part of the fixed covering member that covers the ballast. Compared to a conventional ballast screen that needs to be removed and laid again, it is possible to make the work associated with exposing and re-covering the ballast surface for track maintenance easier than before.

  Further, the present invention is a ballast screen that covers the ballast that supports at least two railroad rails that guide the traveling of the railcar vehicle, and an outer covering member that covers the ballast outside the two railroad rails, An inner covering member that covers the inner ballast of the two rails for railroads, the outer covering member includes an outer fixed covering member and an outer movable covering member, and the outer fixed covering member and the outer movable covering member are: It is possible to expose the ballast in the vicinity of the rail for the rail without being accompanied by movement of at least a part of the outer fixed covering member by being bendably connected at the bent portion, and the inner covering member is the inner fixed covering member. And the inner movable cover member, and the inner fixed cover member and the inner movable cover member are connected to bend at the bent portion so that at least one of the inner fixed cover members is formed. Moving a ballast screen it is possible to expose the ballast in the vicinity of the railway rails without the.

  According to this configuration, the outer covering member that covers the outer ballast of the two rails for rails and the inner covering member that covers the ballast on the inner side of the two rails for rails are provided, and the outer covering member is an outer fixed covering. The outer fixed covering member and the outer movable covering member are connected to bendable at a bent portion so that at least a part of the outer fixed covering member is not moved. It is possible to expose the ballast in the vicinity of the rail, and the inner covering member has an inner fixed covering member and an inner movable covering member, and the inner fixed covering member and the inner movable covering member can be bent at the bent portion. Since it is possible to expose the ballast in the vicinity of the railroad rail without moving at least a part of the inner fixed covering member, the outer and inner sides of the railroad rail can be exposed. It is possible to expose the ballast in the vicinity of the railway rail only moving part of the ballast screen. Therefore, compared to conventional ballast screens that require the entire ballast screen to be removed and laid again, it is possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before. It becomes. If necessary, only an outer fixed covering member that can expose the ballast in the vicinity of the railroad rail without exposing at least a part of the outer fixed covering member is employed, and an inner fixed covering member is used. An inner movable covering member, and the inner fixed covering member and the inner movable covering member are connected to bend at a bent portion so that at least a part of the inner fixed covering member is not moved. Only the inner fixed covering member capable of exposing the nearby ballast is employed, and a conventionally known covering method can be employed for the outer or inner covering member combined therewith.

  In this case, the outer movable covering member and the inner movable covering member are detachably connected to each other at the connecting portion, and the connecting portion is preferably located inside the two rails for rail.

  According to this configuration, since the outer movable covering member and the inner movable covering member are detachably connected at the connecting portion, the work associated with the exposure and re-covering of the ballast surface for track maintenance is more than conventional. It can be made easy. Furthermore, since the connecting portion is located inside the two rails for rail, the size of the inner movable covering member and the inner fixed covering member can be reduced, and can be folded smaller inside the two rails. Track maintenance can be further facilitated.

  The present invention also provides a ballast screen that covers a ballast that supports at least two railroad rails that guide the travel of the railroad vehicle, and an outer fixed covering member that covers the ballast outside the two railroad rails. An inner fixed covering member that covers the ballast on the inner side of the two rails for rails, and the movable covering member is connected to one of the outer fixed covering member and the inner fixed covering member so as to be bendable at the bent portion. Accordingly, in at least one of the outer fixed covering member and the inner fixed covering member, the ballast screen can expose the ballast in the vicinity of the rail for the rail without at least partly moving.

  According to this configuration, the outer fixed covering member that covers the outer ballast of the two rails for rails, and the inner fixed covering member that covers the inner ballast of the two rails for rails, the outer fixed covering member and the inner side are provided. At least one of the outer fixed covering member and the inner fixed covering member is not accompanied by at least a part of movement by connecting the movable covering member to any one of the fixed covering members so as to be bent at the bent portion. It is possible to expose the ballast in the vicinity of the rail for the rail, so even if the bent part is only one of the outer fixed covering member and the inner fixed covering member, the rail for rail is only moved by moving the movable covering member. Nearby ballasts can be exposed. Therefore, with a simple configuration with few bent portions, it becomes possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before.

  In this case, the movable cover member that is not connected to the movable cover member at the bent portion in either one of the outer fixed cover member and the inner fixed cover member and the movable cover member are detachably connected at the connection portion. The part is preferably located inside the two rails for rail.

  According to this configuration, the movable covering member that is not connected to the bent portion in either one of the outer fixed covering member and the inner fixed covering member and the movable covering member are detachably connected to each other at the connecting portion. Therefore, it becomes possible to make the operation associated with the exposure and re-covering of the ballast surface for track maintenance easier than before with a simple configuration having a small number of connecting portions. Furthermore, since the connecting portion is positioned inside the two rails for railroads, the size of the inner fixed covering member can be reduced, and track maintenance can be further facilitated.

  In addition, the present invention is a ballast screen that covers a ballast that supports at least two railroad rails that guide the traveling of the railroad vehicle, and a pair of external fixings that respectively cover the ballasts outside the two railroad rails. A covering member and a pair of outer movable covering members that respectively cover the vicinity and inner ballast of the two rails for railroads, and the pair of outer fixed covering members and the outer movable covering member can be bent at bent portions, respectively. By being connected, it is possible to expose the ballast in the vicinity of the rail for the rail without involving at least part of the movement of the outer fixed covering member, and the outer movable covering members are detachably connected at the connecting portion. There is a ballast screen.

  According to this configuration, the pair of outer fixed covering members that respectively cover the outer ballasts of the two railroad rails, and the pair of outer movable covering members that respectively cover the vicinity and inner ballasts of the two railroad rails. The pair of outer fixed covering members and the outer movable covering member are connected to bendable at the bent portions, respectively, so that at least a part of the outer fixed covering member is not moved, and the ballast in the vicinity of the rail for rail is provided. Since it is possible to expose, it is possible to expose the ballast in the vicinity of the rail for railroads only by moving the outer movable covering member, despite a simple configuration consisting of only a pair of outer fixed covering member and outer movable covering member. it can. Therefore, with a simple configuration, it becomes possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before.

  Further, the present invention is a ballast screen that covers a ballast that supports a railroad rail, and includes a movable covering member that covers the ballast near the railroad rail, and a fixed covering member that covers the ballast around the movable covering member, and is movable. The covering member and the fixed covering member are detachably connected to each other at the connecting portion, so that the ballast screen in the vicinity of the rail for the rail can be exposed without at least a part of the movement of the fixed covering member. It is.

  According to this configuration, the movable covering member that covers the ballast in the vicinity of the rail for the rail and the fixed covering member that covers the ballast around the movable covering member are provided, and the movable covering member and the fixed covering member are detachable at the connecting portion. By being connected, it is possible to expose the ballast in the vicinity of the rail for the rail without at least a part of the movement of the fixed covering member. It is possible to expose the ballast in the vicinity of the rail for the rail simply by removing and attaching the rail. Therefore, with a simple configuration having no bent portion, it becomes possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before.

  In these cases, it is preferable that the bent portions are connected so as to be bent by the connection belt.

  According to this configuration, since the bent portion is connected to be bent by the connection belt, the bent portion can be easily bent with a simple configuration, and is not easily damaged even if an ice block or the like collides. It becomes possible to do.

  In this case, the bending portion is inserted into each of the outer fixed covering member, the outer movable covering member, the inner fixed covering member, the inner movable covering member, and the through hole provided in the movable covering member, It is preferable that they are connected by connecting them in an annular shape.

  According to this configuration, the connecting portion is inserted into each of the through holes provided in the outer fixed covering member, the outer movable covering member, the inner fixed covering member, the inner movable covering member, and the movable covering member that are connected to each other. Since the connecting belt is connected by connecting it in an annular shape, it can be bent easily with a simple structure, but it is a bent portion rich in durability and strength that is hard to break even if an ice block collides. It becomes possible.

  The connecting belt is preferably made of woven fabric.

  According to this configuration, since the connection belt is made of a strong and flexible woven fabric, even if an ice block or the like collides, it is difficult to break because it receives an impact, and it is possible to provide a bent portion with high durability. .

  On the other hand, the connecting portion is detachably connected by the connecting member, and the outer movable covering member, the inner movable covering member, the outer fixed covering member, the inner fixed covering member, the movable covering member, and the penetration provided in the fixed covering member that are connected to each other It is preferable that the holes are connected to each other by fitting a pair of protrusions provided on the connecting member with each other.

  According to this configuration, the connecting portion is detachably connected by the connecting member, and is connected to the outer movable covering member, the inner movable covering member, the outer fixed covering member, the inner fixed covering member, the movable covering member, and the fixed covering member. Each of the through-hole portions provided in the connecting member and the pair of protruding portions provided in the connecting member are connected to each other so that the connecting portion can be easily attached and detached with a simple configuration.

  According to the ballast screen of the present invention, it is possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier on the track on which the ballast screen is laid.

It is a perspective view which shows the application state of the ballast screen which concerns on 1st Embodiment. It is a top view which shows the application state of the ballast screen which concerns on 1st Embodiment. It is an expansion perspective view which shows the bending part of a ballast screen. It is an expansion perspective view which shows a plastic stopper. It is an expansion perspective view which shows the connection part connected with the plastic stopper. It is an expansion perspective view which shows the connection part connected with the plastic stopper. (A)-(c) is a perspective view which shows the procedure which exposes the ballast roadbed covered with the ballast screen of 1st Embodiment. It is a top view which shows the application state of the ballast screen which concerns on 2nd Embodiment. It is a top view which shows the application state of the ballast screen which concerns on 3rd Embodiment. It is a top view which shows the state which exposed the ballast road bed of the rail vicinity of the ballast screen which concerns on 3rd Embodiment. It is a top view which shows the application state of the ballast screen which concerns on 4th Embodiment. It is a top view which shows the application state of the ballast screen which concerns on 5th Embodiment. It is a top view showing the state where the ballast roadbed near the rail of the ballast screen concerning a 5th embodiment was exposed.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the ballast screen 100 a of the present embodiment is for covering the surface of the ballast 202 in a track on which a ballast 202, sleeper 204, and railroad rail 206 are installed on a roadbed 200. is there. The ballast screen 100a is made of a rubber plate having a thickness of 10 to 30 mm, more preferably 15 to 25 mm as a whole.

  Outer fixed covering members 10 a are respectively installed along the outer edges of sleepers 204 on the outer sides of the two rails for rail 206 forming one railroad track. The length of the outer fixed covering member 10a along the longitudinal direction of the rail for rail 206 is such that one outer fixed covering member 10a is installed for every three sleepers 204 installed adjacent to each other. The

  Two outer movable covering members 13a are connected to one outer fixed covering member 10a by a connecting belt 14 at a bent portion 12 so as to be bent. The length of the outer movable covering member 13a along the longitudinal direction of the rail for rail 206 is the distance between the two sleepers 204 installed adjacent to each other. Each of the two outer movable covering members 13 a is connected to the outer fixed covering member 10 a so as to be installed between the two sleepers 204. Each of the two outer movable covering members 13 a is installed between two sleepers 204 and covers the ballast 202 between the two sleepers 204 on the outer side of the rail for rails 206. The tip of each of the two outer movable covering members 13a dives under the railway rail 206 from the outside of the two railway rails 206, and is about 30 to 300 mm, more preferably about 60 to 200 mm inside the railway rail 206. It protrudes.

  The outer fixed covering member 10a and the outer movable covering member 13a have a plurality of substantially square through-hole portions 11 each having a side length of 20 to 40 mm. The through-hole portion 11 can prevent the ballast screen 100a from being lifted by the wind pressure when passing through the railway vehicle.

  An inner fixed covering member 20a is installed between the two sleepers 204. The length of the inner fixed covering member 20a along the longitudinal direction of the rail for rail 206 is the interval between the two sleepers 204 installed adjacent to each other, like the outer movable covering member 13a.

  Two inner movable covering members 23a are connected to both ends of one inner fixed covering member 20a so as to be bent by a connecting belt 24 at a bending portion 32. The length of the inner movable covering member 23a along the longitudinal direction of the rail 206 for railroad is the distance between the two sleepers 204 installed adjacent to each other in the same manner as the outer movable covering member 13a and the inner fixed covering member 20a. The length of the inner movable covering member 23a along the longitudinal direction of the sleeper 204 is the same as the inner fixed covering member 20a or about 10 to 50 mm shorter than the inner fixed covering member 20a so that it can be easily folded. The inner fixed covering member 20 a and the inner movable covering member 23 a are installed between the two sleepers 204 and cover the ballast 202 between the two sleepers 204 inside the two rails 206 for the railway.

  The inner fixed covering member 20a and the inner movable covering member 23a are provided with a plurality of substantially square through-hole portions 21 each having a side length of 20 to 40 mm, and the ballast screen 100a is formed by the wind pressure when passing through the railway vehicle. Prevent floating.

  The outer movable covering member 13a and the inner movable covering member 23a are detachably connected to each other by a plastic stopper 34 at the connecting portion 32. Further, the outer fixed covering members 10 a installed adjacent to each other along the longitudinal direction of the rail for rail 206 are detachably connected by a plastic stopper 34 at the connecting portion 42.

  As shown in FIG. 3, the bent portions 12 that connect the outer fixed covering member 10a and the outer movable covering member 13a so as to be bendable are the through-hole portions 15 provided in the outer fixed covering member 10a and the outer movable covering member 13a, respectively. The connecting belt 14 made of a woven fabric is inserted into the two, and the connecting belt 14 is connected in an annular shape. In the example of FIG. 3, the through-hole portion 11 for preventing the ballast screen 100a from rising and the through-hole portion 15 for inserting the connection belt 14 are provided separately. However, the through-hole portion for inserting the connection belt 14 is provided. It is also possible to use the hole portion as the through hole portion 11 for preventing the ballast screen 100a from floating, and the configuration of the member can be simplified. The bent portion 22 that connects the inner fixed covering member 20a and the inner movable covering member 23a so as to be bendable has the same configuration.

  As shown in FIG. 4, a plastic plastic stopper 34 that removably connects the outer movable covering member 13a and the inner movable covering member 23a in the connecting portion 32 includes a substantially rectangular plate-like cross-linking portion 36 and a cross-linking portion. It has a pair of protrusion part 38 which protrudes in one direction from the both ends of the part 36, respectively. A barb 39 having a larger diameter than the base is provided at the tip of the protrusion 38 to prevent it from being easily detached.

  As shown in FIG. 5, in the connecting portion 32, the outer movable covering member 13a and the inner movable covering member 23a are provided on the outer movable covering member 13a and the inner movable covering member 23a to prevent the ballast screen 100a from rising. Each of the through-hole portions 11 and 21 and the pair of projecting portions 38 provided on the plastic stopper 34 are connected to each other by fitting with each other.

  As shown in FIG. 6, in the connecting portion 42, the outer fixed covering members 10 a are formed of a pair of through holes 11 provided in the outer fixed covering member 10 a for preventing the ballast screen 100 a from rising and a pair provided in the plastic stopper 34. The protrusions 38 are connected to each other by fitting with each other.

  Hereinafter, the operation of the ballast screen 100a of the present embodiment will be described. As shown in FIG. 7A, it is assumed that ballast screens 100a are installed inside and outside the two rails 206 for railroad.

  In this state, when the track maintenance work is performed by a multiple tie tamper or the like, the plastic stopper 34 is detached as shown in FIG. The inner movable covering member 23a is bent at the bent portion 22, and is folded over the inner fixed covering member 20a. Further, the end portion of the outer movable covering member 13a is pulled out from under the rail for rail 206, bent at the bent portion 12, and folded over the outer fixed covering member 10a. As a result, the ballast 202 is exposed at a portion 100 to 500 mm away from both rails in the vicinity of the rail for rail 206 without the movement of the outer fixed cover member 10a and the inner fixed cover member 20a.

  If necessary, as shown in FIG. 7C, the outer fixed covering member 10a and the outer movable covering member 13a can be turned over and separated from the rail for rail 206. When the track maintenance work by the multiple tie tamper or the like is completed and the ballast screen 100a is laid again, the outer movable covering member 13a and the inner movable covering folded at the bent portions 12 and 22 are reverse to the above procedure. The member 23 a is expanded, and the outer movable covering member 13 a and the inner movable covering member 23 a are connected by the plastic stopper 34.

  In track maintenance work using multiple tie tampers or the like, the ballast 202 in the vicinity of the rail for rail 206, that is, the MTT tool is inserted to bolster the ballast 202, and the ballast 202 is moved under the sleeper 204 to move to a specified height and position. In addition, it is sufficient to expose only the ballast surface necessary for the work of correcting the rail 206 for rail. Therefore, according to the present embodiment, the outer movable covering member 13a and the inner movable covering member 23a that cover the ballast 202 are used for the railroad rail without the movement of the outer fixed covering member 10a and the inner fixed covering member 20a that cover the ballast 202. Since it is possible to expose the ballast 202 in the vicinity of 206, the entire ballast screen 100a is removed and the ballast surface is exposed and re-applied for track maintenance as compared with a conventional ballast screen that needs to be laid again. The work associated with the coating can be made easier than before.

  In particular, in the present embodiment, the outer fixed covering member 10a and the outer movable covering member 13a that cover the outer ballast 202 of the two rails 206 for rails are connected to each other at the bent portion 12 so that they can be bent. It is possible to expose the ballast 202 in the vicinity of the railroad rail 206 without moving the covering member 10a, and the inner fixed covering member 20a and the inner movable covering member that cover the inner ballast 202 of the two railroad rails 206. 23a can be bent at the bent portion 22 so that the ballast 202 in the vicinity of the rail for rail 206 can be exposed without the movement of the inner fixed covering member 20a. The ballast 20 in the vicinity of the rails 206 for railroads can be moved only by moving a part of the ballast screen 100a between the outer side and the inner side. It can be exposed. Therefore, compared to conventional ballast screens that require the entire ballast screen to be removed and laid again, it is possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before. It becomes. If necessary, only the outer fixed covering member 10a capable of exposing the ballast 202 in the vicinity of the rail for rail 206 without moving at least a part of the outer fixed covering member 10a is adopted, and the inner side It has a fixed covering member 20a and an inner movable covering member 23a, and the inner fixed covering member 20a and the inner movable covering member 23a are connected so as to be bendable at the bending portion 22, thereby at least one of the inner fixed covering member 20a. Only the inner fixed covering member 20a capable of exposing the ballast 202 in the vicinity of the rail for rail 206 without moving the part is adopted, and the outer or inner covering member combined therewith is conventionally known as a covering method. Can also be adopted.

  Further, according to the present embodiment, the outer movable covering member 13a and the inner movable covering member 23a are detachably connected at the connecting portion 32, so that the ballast surface is exposed and covered again for track maintenance. The accompanying work can be made easier than before. Further, since the connecting portion 32 is positioned inside the two rails 206, the size of the inner movable covering member 23a and the inner fixed covering member 20a can be reduced, and it can be folded smaller inside the rails 206. Track maintenance can be further facilitated.

  Further, according to the present embodiment, since the bent portions 12 and 22 are connected by the connecting belts 14 and 24 so as to be bent, the bent portions 12 and 22 can be easily bent with a simple configuration, but are damaged even if an ice block or the like collides. It becomes possible to make the bent portions 12 and 22 rich in durability which are difficult to do.

  In particular, according to the present embodiment, the bent portions 12 and 22 have through-hole portions 15 provided in the outer fixed covering member 10a, the outer movable covering member 13a, the inner fixed covering member 20a, and the inner movable covering member 23a that are connected to each other. Since the connecting belts 14 and 24 are inserted into the respective belts and connected by connecting the connecting belts 14 and 24 in an annular shape, the belt can be easily bent with a simple structure, but is damaged even if an ice block collides with it. It becomes possible to make the bent portion rich in durability and strength difficult to do.

  Furthermore, according to this embodiment, since the connection belts 14 and 24 are made of a strong and flexible woven fabric, even if an ice block or the like collides, it is hard to break because it receives an impact, and the bent portion 12 is rich in durability. , 22 is possible.

  In addition, according to the present embodiment, the connecting portion 32 is detachably connected by the plastic stopper 34, and the through-hole portions 11 and 21 provided in the outer movable covering member 13a and the inner movable covering member 23a connected to each other, respectively. And the pair of projecting portions 38 provided on the plastic stopper 34 are connected to each other by being fitted to each other, so that the connecting portion 32 can be easily attached and detached with a simple configuration.

  Hereinafter, a second embodiment of the present invention will be described. As shown in FIG. 8, in the ballast screen 100b of the present embodiment, the connecting portion 32 of the outer movable covering member 13b and the inner movable covering member 23b is located on the outer side of the two rails 206 for rails. This is different from the first embodiment. In addition, in the following FIGS. 8-13, illustration is abbreviate | omitted about the through-hole parts 11 and 21 for the simplification. In the longitudinal direction of the sleeper 204, the length of the outer movable covering member 13b is shorter than that of the first embodiment, and the length of the inner movable covering member 23b is longer than that of the first embodiment. The front end of the inner movable covering member 23b dives under the rail for rail 206 from the inside of the two rails for rail 206 and protrudes about 30 to 300 mm, more preferably about 60 to 200 mm, outside the rail for rail 206.

  In the present embodiment, since the connecting portion 32 is positioned outside the two rails 206, the size of the outer movable covering member 13a is reduced, and the outer movable covering member 13a is folded smaller outside the two rails 206. Track maintenance can be further facilitated.

  Hereinafter, a third embodiment of the present invention will be described. As shown in FIG. 9, in the ballast screen 100c of the present embodiment, the inner fixed covering member 20c is not provided with an inner movable covering member or a bent portion, and the connecting portion 32 directly with the outer movable covering member 13c. The point which is connected so that attachment or detachment is possible differs from the said 1st Embodiment. In the longitudinal direction of the sleeper 204, the length of the outer movable covering member 13c is made longer than that of the first embodiment, and the connecting portion 32 is provided at a position 100 to 500 mm away from the inside of the rail for rail 206.

  When track maintenance work is performed using multiple tie tampers or the like, the plastic stopper 34 is detached as shown in FIG. The inner fixed covering member 20c is left installed on the ballast 202. The end of the outer movable covering member 13c is pulled out from under the rail for rail 206, bent at the bent portion 12, and folded over the outer fixed covering member 10c. As a result, the ballast 202 is exposed at a portion 100 to 500 mm away from both rails in the vicinity of the rail for rail 206 without the movement of the outer fixed cover member 10c and the inner fixed cover member 20c.

  In this embodiment, the outer fixed covering member 10c that covers the outer ballast 202 of the two rails 206 and the inner fixed covering member 20c that covers the inner ballast 202 of the two rails 206 are provided, and the outer fixed member is provided. The outer movable covering member 13c is connected to the covering member 10c so that the outer movable covering member 13c can be bent at the bending portion 12, so that at least part of the outer fixed covering member 10c and the inner fixed covering member 20c is not moved. Since the ballast 202 in the vicinity can be exposed, the bent portion 12 is only one of the outer fixed covering members 10c, but the ballast 202 in the vicinity of the rails 206 is simply moved by moving the outer movable covering member 13c. Can be exposed. Therefore, with a simple configuration with few bent portions, it becomes possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before.

  Further, in the present embodiment, the inner fixed covering member 20c and the outer movable covering member 13c are detachably connected to each other at the connecting portion 32, so that the track maintenance is simple with a small number of connecting portions. It becomes possible to make the operation | work accompanying exposure of a ballast surface and a covering again easier than before. Furthermore, since the connecting portion 32 is positioned inside the two rails 206 for railroads, the size of the inner fixed covering member 10c can be reduced, and track maintenance can be further facilitated.

  In the present embodiment, contrary to the mode illustrated in FIGS. 9 and 10, the outer fixed covering member 10c is not provided with an outer movable covering member or a bent portion, and the inner fixed covering member is provided as in the first embodiment. Only the inner movable covering member 20c may be provided, and the inner movable covering member and the outer fixed covering member 10c may be directly and detachably connected at the connecting portion 32.

  The fourth embodiment of the present invention will be described below. As shown in FIG. 11, in the ballast screen 100d of the present embodiment, the inner fixed covering member and the inner movable covering member are not provided, only the outer fixed covering member 10d and the outer movable covering member 13d are provided, and the outer movable covering members 13d are connected to each other. Is different from the first embodiment in that the two are connected at the connecting portion 32. In the longitudinal direction of the sleeper 204, the length of the outer movable covering member 13d is made longer than that in the first and third embodiments, and the connecting portion 32 is provided in the central portion inside the two rails 206 for railroad. .

  According to the present embodiment, the pair of outer fixed covering members 10d that respectively cover the outer ballasts 202 of the pair of rails 206 and the pair of outer movable members that respectively cover the vicinity and the inner ballasts 202 of the pair of rails 206. A pair of outer fixed covering member 10d and outer movable covering member 13d are connected to each other at bendable portion 12 so that they can be bent, so that the outer fixed covering member 10d is not moved. Since it is possible to expose the ballast 202 in the vicinity of the rail 206, the railroad can be obtained only by moving the outer movable covering member 13 d, despite a simple configuration including only the pair of outer fixed covering members 10 d and the outer movable covering member 13 d. The ballast 202 in the vicinity of the rail 206 can be exposed. Therefore, with a simple configuration, it becomes possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before.

  The fifth embodiment of the present invention will be described below. As shown in FIG. 12, in the ballast screen 100e of this embodiment, the outer movable covering member, the inner movable covering member, and the bent portion are not provided, and the outer fixed covering member 10e, the inner fixed covering member 20e, and the movable covering member are provided. 50 is different from the first embodiment in that the movable covering member 50 is detachably connected to the outer fixed covering member 10e and the inner fixed covering member 20e at the connecting portion 32. Each connection part 32 is located in the site | part 100-500 mm away from the rail 206 both sides of the rail 206 vicinity.

  When track maintenance work is performed by multiple tie tampers or the like, the plastic stopper 34 is detached as shown in FIG. The outer fixed covering member 10e and the inner fixed covering member 20e are left installed on the ballast 202. The movable covering member 50 is pulled out from below the rail 206 for rail, and the outer fixed covering member 10e and the inner fixed covering member 20e are removed. As a result, the ballast 202 is exposed at a portion 100 to 500 mm away from both rails in the vicinity of the rail for rail 206 without the movement of the outer fixed cover member 10e and the inner fixed cover member 20e.

  According to the present embodiment, the movable covering member 50 includes the movable covering member 50 that covers the ballast in the vicinity of the rail for rail 206, and the outer fixed covering member 10e and the inner fixed covering member 20e that cover the ballast 202 around the movable covering member 50. 50, the outer fixed covering member 10e and the inner fixed covering member 20e are detachably connected to each other at the connecting portion 32, so that the rail 206 for railroad 206 is not accompanied by the movement of the outer fixed covering member 10e and the inner fixed covering member 20e. Since the ballast 202 in the vicinity can be exposed, the ballast 202 in the vicinity of the rail 206 can be exposed only by detaching the movable covering member 50 in spite of a simple configuration without a bent portion. Therefore, with a simple configuration having no bent portion, it becomes possible to make the work associated with the exposure and re-covering of the ballast surface for track maintenance easier than before.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, two rails 206 constitute one railroad track, and the ballast screens 100a to 100e are mainly described as applied to one railroad track. However, the ballast screens 100a to 100e of the present embodiment can be applied to, for example, a branching unit (point) in which a plurality of railroad tracks exist side by side with three or more railroad rails. is there.

10a to 10e: outer fixed covering member, 11: through-hole portion, 12 ... bent portion, 13a to 13e ... outer movable covering member, 14 ... connection belt, 15 ... through hole portion, 20a to 20c, 20e ... inner fixed covering member 21 ... Through-hole part, 22 ... Bending part, 23a, 23b ... Inner movable covering member, 24 ... Connection belt, 32 ... Connecting part, 34 ... Plastic stopper, 36 ... Bridging part, 38 ... Projection part, 39 ... Return, 42 ... connecting part, 50 ... movable covering member, 100a to 100e ... ballast screen, 200 ... roadbed, 202 ... ballast, 204 ... sleeper, 206 ... rail for rail.

Claims (11)

A ballast screen covering the ballast supporting the rail for the railway,
A fixed covering member and a movable covering member covering the ballast;
The movable covering member is a ballast screen capable of exposing the ballast in the vicinity of the rail for the rail without accompanying at least a part of the fixed covering member. A ballast screen that covers a ballast that supports at least two railroad rails that guide the travel of the railroad vehicle;
An outer covering member that covers the ballast outside the two rails for the railway;
An inner covering member that covers the ballasts inside the two rails for the railway,
With
The outer covering member is
An outer fixed covering member and an outer movable covering member;
The outer fixed covering member and the outer movable covering member are connected so as to be bendable at a bent portion, so that the ballast in the vicinity of the rail for the railway can be moved without moving at least a part of the outer fixed covering member. Can be exposed,
The inner covering member is
An inner fixed covering member and an inner movable covering member;
The inner fixed covering member and the inner movable covering member are connected so as to be bendable at a bent portion, so that the ballast in the vicinity of the rail for the railway can be moved without moving at least a part of the inner fixed covering member. Ballast screen that can be exposed.   3. The ballast screen according to claim 2, wherein the outer movable covering member and the inner movable covering member are detachably connected at a connecting portion, and the connecting portion is positioned inside two railroad rails. . A ballast screen that covers a ballast that supports at least two railroad rails that guide the travel of the railroad vehicle;
An outer fixed covering member that covers the ballast outside the two rails for the rail;
An inner fixed covering member that covers the ballast on the inner side of the two rails for the railway,
With
At least one of the outer fixed covering member and the inner fixed covering member is connected to one of the outer fixed covering member and the inner fixed covering member by a bendable movable covering member at a bent portion. A ballast screen capable of exposing the ballast in the vicinity of the rail for the rail without at least a part of the movement.   Of the outer fixed covering member and the inner fixed covering member, the one where the movable covering member is not connected at the bent portion and the movable covering member are detachably connected at the connecting portion. The ballast screen according to claim 4, wherein the connecting portion is located inside two railroad rails. A ballast screen that covers a ballast that supports at least two railroad rails that guide the travel of the railroad vehicle;
A pair of outer fixed covering members respectively covering the ballast outside the two railroad rails;
A pair of outer movable covering members that respectively cover the vicinity of the two railroad rails and the inner ballast;
With
A pair of the outer fixed covering member and the outer movable covering member are connected to bendable at the bent portions, respectively, so that at least a part of the outer fixed covering member is not moved and the vicinity of the rail for rail It is possible to expose the ballast;
The outer movable covering members are detachably connected to each other at a connecting portion. A ballast screen covering the ballast supporting the rail for the railway,
A movable covering member covering the ballast in the vicinity of the rail for the railway,
A fixed covering member that covers the ballast around the movable covering member;
With
The movable covering member and the fixed covering member are detachably connected at a connecting portion to expose the ballast in the vicinity of the railroad rail without moving at least a part of the fixed covering member. Is possible, ballast screen.   The ballast screen according to any one of claims 2 to 6, wherein the bent portion is connected to be bent by a connection belt.   The bent portion is configured such that the connection belt is inserted into each of the outer fixed covering member, the outer movable covering member, the inner fixed covering member, the inner movable covering member, and the through-hole portions provided in the movable covering member that are connected to each other. The ballast screen according to claim 8, wherein the ballast screens are connected by connecting the connection belts in an annular shape.   The ballast screen according to claim 8 or 9, wherein the connection belt is made of woven fabric.   The connecting portion is detachably connected by a connecting member, and is connected to the outer movable covering member, the inner movable covering member, the outer fixed covering member, the inner fixed covering member, the movable covering member, and the fixed covering. 8. The ballast screen according to claim 3, wherein each of the through-hole portions provided in the member and the pair of projecting portions provided in the connecting member are connected to each other by being fitted to each other. .

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