JP6576121B2 - Sleeper movement prevention device - Google Patents

Description

  The present invention relates to a sleeper movement preventing apparatus for preventing movement along a rail of a sleeper.

In the ballast track, the sleepers on which the rails are placed are required to be arranged at specified intervals because it is necessary to evenly distribute the load of the railway vehicle.
In recent years, at level crossings, a floor board made of wood or a resin material is becoming widespread as a floor board laid on sleepers. The floor plate made of such a resin material or the like is fixed by using embedded bolts or bolt holes provided on the sleepers.
Therefore, at the level crossing, if the sleepers are not accurately arranged at regular intervals, bolting for fixing the slats cannot be performed, and thus the arrangement intervals of the sleepers are particularly required. It was.

However, in a ballast track, it is necessary to periodically perform a ballast tamping operation using a multiple tie tamper as a maintenance operation for preventing settling of sleepers.
This ballast tamping operation is performed by a tool that descends from the multiple tie tamper body that can move on the track toward the periphery of the rail. By ballast tamping, the ballast is fed to the underside of the sleeper, Prevent sedimentation.
Even at a level crossing, it is necessary to perform ballast tamping work with multiple tie tampers with the floorboard removed in order to prevent the sleepers from sinking. It was inevitable that movement would occur along.
For this reason, after the ballast tamping operation, it is indispensable to return each sleeper to an appropriate interval, which increases the work time and the work load.

  In order to properly maintain the distance in the direction along the rail of such sleepers, as a conventional technique, a rectangular frame-shaped terminal member that surrounds and holds one end of the sleeper and the terminal members are connected at a predetermined interval. And a method of using a flat rod-like extension member (see, for example, Patent Document 1).

JP 2012-87505 A

  However, in the case of the above prior art, since the extension member is arranged in parallel with the rail, each member must be removed in advance when the ballast is tamped by the multiple tie tamper. It was not possible to prevent the movement of sleepers during the hardening operation.

  An object of the present invention is to maintain an appropriate interval between sleepers in a ballast tamping operation.

In order to achieve the above object, the present invention provides
An interval regulating member that is arranged between the opposing surfaces of two adjacent sleepers and regulates the change in the interval between these opposing surfaces;
A pair of support arms extending from both ends of the spacing regulating member and joined to the upper surfaces of the two sleepers;
Each of the support arms, with respect to the space restricting member is provided at a position shifted in a direction perpendicular to the longitudinal direction of the space restricting member, viewed from said space restricting member and the support arm portion The arrangement is such that it does not overlap in the direction orthogonal to the longitudinal direction of the spacing regulating member .

According to the said structure, since the both ends of a space | interval regulation member are arrange | positioned between the opposing surfaces of two adjacent sleepers, the approach of sleepers is prevented effectively. For this reason, when the interval regulating member of the sleeper movement prevention device is arranged between the sleepers arranged in a row, the sleepers are not only approached to each other but also separated from each other, and the mutual movement is effectively prevented. Can be reduced.
Moreover, since the support arm part is provided in the position which shifted | deviated to the direction orthogonal to the longitudinal direction with respect to the space | interval restricting member in the both ends of the space | interval restricting member, the space | interval restricting member was arrange | positioned under the rail. Even in such a case, each supporting arm portion is not arranged so as to be hidden under the rail, and can be placed so as to extend to the upper surface of the sleeper. Therefore, the both ends of the space regulating member are supported by the sleepers via the support arm portions, and settling of the space regulating member can be suppressed.
Further, the spacing regulating member enters the lower side of the rail, and the pair of support arm portions are respectively arranged on the upper surface of the sleepers. To do. Therefore, the ballast tamping operation by the multiple tie tamper that rams the rails and sleepers from above with a tool is not hindered.
Therefore, the ballast tamping operation can be performed with the sleeper movement preventing apparatus attached, and the movement of the sleepers at that time can be effectively suppressed.

Here, the support arm portion is provided with an uneven structure that fits between the sleepers.
According to the said structure, since a support arm part has an uneven | corrugated structure fitted between sleepers, it becomes possible to maintain the attachment position of a sleeper movement prevention apparatus stably.
Moreover, the separation movement of the two sleepers can be restricted by the single sleeper movement preventing device by fitting the support arm portion and the uneven structure of the sleepers.

In addition, the support arm portion is configured such that the top surface of the support arm portion has a height equal to or lower than the uneven structure on the sleeper side in a state where the uneven structure is fitted.
According to the above configuration, the support arm portion is in a state in which the concavo-convex structure is fitted, and the upper surface thereof has a height equal to or lower than the concavo-convex structure on the sleeper side. The thickness of the support arm does not hinder the mounting. Further, it is not necessary to modify the existing base plate to allow the thickness of the support arm portion, and the existing base plate can be used as it is.

Further, a locking portion for fitting the bottom portion of the rail is provided on the opposite side of the support arm portion in the interval regulating member.
According to the above configuration, the locking portion provided on the side opposite to the support arm portion in the spacing regulating member can maintain the mounting position of the spacing regulating member on the supporting arm portion side and the locking portion side, It is possible to effectively reduce positional deviation and settling after mounting.

Moreover, the said latching | locking part is formed with a metal plate.
According to the said structure, since the latching | locking part was formed with the metal plate, the thickness of the latching | locking part itself can be made thin and the swelling of the latching | locking part with respect to a rail is suppressed in planar view. Accordingly, the locking portion does not hinder the ballast tamping operation by the multiple tie tamper, and the removal of the sleeper movement preventing device during the ballast tamping operation can be avoided.

Since the sleeper movement preventing apparatus according to the present invention can perform the ballast tamping operation while being mounted on the rail, it is possible to effectively suppress the movement of the sleepers at that time.
Therefore, even when applied to a place where a floorboard is attached to a sleeper, such as a railroad crossing, the work of restoring the position of the sleeper after the ballast tamping work is unnecessary, and the work time is greatly reduced and the work load is reduced. Is possible.

It is a top view of the track in a level crossing. It is a side view of the track in a level crossing. It is the front view which looked at the sleeper which mounted the rail from the longitudinal direction of the rail. It is a top view of a sleeper. 5A is a plan view of the sleeper movement preventing apparatus, FIG. 5B is a side view, and FIG. 5C is a front view. It is a top view in the state where the sleeper movement prevention device was attached to the sleepers. It is a side view in the state where the sleeper movement prevention device was attached to the sleepers. It is a front view in the state where the sleeper movement prevention device was attached to the sleepers.

[Configuration of track around railroad crossing]
FIG. 1 is a plan view of a track at a crossing, and FIG. 2 is a side view. The track K exemplified here is a so-called ballast track using the ballast as a roadbed. In addition, in FIG.1 and FIG.2, illustration of the sleeper movement prevention apparatus 10 mentioned later is abbreviate | omitted.

  As shown in FIGS. 1 and 2, the track K includes a plurality of sleepers 100 arranged on the road bed at equal intervals, a pair of rails 110 placed in parallel with each sleeper 100, and the inside of the pair of rails 110. A pair of guard rails 120 disposed on the outside of the pair of rails 110 and a plate-like floor plate 130 disposed on the outside of the pair of rails 110 and the inside of the pair of guard rails 120 are provided.

FIG. 3 is a front view of the sleeper 100 on which the rail 110 is placed as viewed from the longitudinal direction of the rail 110. In FIG. 3, the floor plate 130 is not shown.
As shown in FIG. 3, each rail 110 is a general rail including a head 111, an abdomen 112, and a bottom 113.
The rail 110 is fastened and fixed to the sleeper 100 by a bolt 115 via a leaf spring 114 curved in an annular shape at the outer edge of the bottom 113.

  Each guard rail 120 is placed on each sleeper 100 so as to be adjacent to each rail 110 in the railroad crossing area, and has a function of supporting the inside of the rail vehicle wheel to prevent the rail 110 from being removed. is doing. Therefore, the guard rail 120 is disposed close to the rail 110.

As with the rail 110, the guard rail 120 includes a head portion 122, an abdominal portion 123, and a bottom portion 124, and is fastened and fixed to the sleeper 100 by a bolt 126 via a leaf spring 125 at an inner edge of the bottom portion 124. ing.
In addition, the inner edge of the bottom 113 of the rail 110 and the outer edge of the bottom 124 of the guard rail 120 are fastened and fixed to the sleeper 100 by bolts 127 via plate springs 121 for laying them.
Note that the guard rail 120 and the leaf springs 121 and 125 are removed in order to avoid interference with the tool when the ballast is tamped by the multiple tie tamper.

The floor plate 130 has an upper surface that is the same height as the top of the rail 110, and the rail 110 crosses the railroad crossing the rail 110 by leveling the periphery of the rail 110 by spreading the rail 110 and the guard rail 120 around the rail 110. This can prevent the traveling vehicle from being hindered.
Here, the resin plate is illustrated as the floor plate 130, but the floor plate may be made of wood or the like and can be used.

  The floor plate 130 is a rectangular flat plate, and a circular through hole is formed at the center in the longitudinal direction, and semicircular through grooves are formed at both ends. A fitting plug 131 for fixing the floor plate 130 to the sleeper 100 is fitted in these through holes and through grooves. The semicircular through groove forms a through hole integrally with a through groove of another adjacent floor plate 130, and a mounting plug 131 is fitted therein to fix each floor plate 130 to the sleeper 100.

In addition, the base plate 132 located at both ends in the crossing area is formed with a taper that descends toward the outside of the area.
Furthermore, the bottom plate 134 located at both ends in the railroad crossing area and inside the pair of guard rails 120 has a taper and is formed in an isosceles trapezoidal shape in plan view.
Further, the thickness of each of the floor plates 130, 132, and 134 is equal to the height of the rail 110 in terms of their functions.

FIG. 4 is a plan view of the sleeper 100. The sleepers 100 are rod-shaped concrete blocks, and a plurality of sleepers 100 are arranged on the roadbed along the longitudinal direction of the rail 110 at regular intervals. Each sleeper 100 has its longitudinal direction oriented in a direction perpendicular to the longitudinal direction of the rail 110.
And the cross-sectional shape seen from the longitudinal direction of the sleeper 100 is formed in the isosceles trapezoid shape as shown in FIG.
On the upper surface of the sleeper 100, a rail arrangement portion 101 for individually placing the pair of rails 110 is formed somewhat inside the both ends, and a pair of rail arrangement portions 101 are adjacent to each other, A guard rail arrangement portion 102 for individually placing the guard rails 120 is formed.
Further, bolt mounting holes 103 and 104 for fastening and fixing the rail 110 and the guard rail 120 are formed on both sides of the rail placement portion 101 and the guard rail placement portion 102.
Further, mounting grooves 105 for inserting the mounting plugs 131 of the floor plate 130 are formed at a total of four locations, one at each end of the sleeper 100 and two at the center.

  Moreover, the trapezoidal shape as a concavo-convex structure which protrudes from the formation surface of the attachment hole 103 on both sides in the width direction of the sleeper 100 (the direction orthogonal to the longitudinal direction of the sleeper 100) with respect to the attachment hole 103 of each bolt. Two protrusions 106 are formed.

[Sleeper movement prevention device]
The sleeper movement preventing apparatus 10 applied to the track K having the above-described configuration and attached to the rail 110 and the sleeper 100 in order to maintain the sleepers 100 at a constant interval will be described with reference to the drawings. 5 shows the sleeper movement preventing apparatus 10, FIG. 5A is a plan view when the longitudinal direction of the rail 110 is the front, FIG. 5B is a side view, and FIG. 5C is a front view. . 6 is a plan view of the sleeper movement preventing apparatus 10 in an attached state, FIG. 7 is a side view of the attached state, and FIG. 8 is a front view of the attached state.

  The sleeper movement preventing apparatus 10 includes a block-shaped interval regulating member 20 that is long in a predetermined direction, and a pair of support arm portions 30 that are extended from both ends of the interval regulating member 20 in a direction in which the interval regulating member 20 is extended. The locking member 40 is provided with a locking portion 41 for suspending the distance regulating member 20 from the rail 110.

The spacing regulating member 20 is a substantially rectangular parallelepiped made of hard rubber (EB rubber) having a rectangular shape in a plan view, an isosceles trapezoidal shape in which a bottom view is shorter than an upper base, and a rectangular shape in a front view. Note that the pair of support arm portions 30 are integrally formed of the same material as that of the interval regulating member 20.
The end surfaces 21 on both sides in the longitudinal direction of the spacing regulating member 20 are inclined at an angle corresponding to one side surface along the longitudinal direction of the sleeper 100, and the spacing regulating member 20 is disposed between the two sleepers 100. In some cases, the end surface 21 on both sides can be brought into surface contact with one side surface along the longitudinal direction, which is the opposing surface of the two sleepers 100, while maintaining the spacing regulating member 20 horizontal.

  The space regulating member 20 is assumed to be arranged so as to be hidden under the rail 110 when the sleeper movement preventing device 10 is installed between the sleepers 100 and 100. The width of 22 in the short direction is the same as or slightly wider than the width of the bottom 113 of the rail 110.

The pair of support arm portions 30 are individually placed on the upper surfaces of the two sleepers 100 on both sides, and maintain their heights so that the space regulating member 20 does not sink.
Each support arm portion 30 is provided on a vertical plate portion 31 extending from a side surface 23 on one side along the longitudinal direction of the interval restriction member 20 toward the short direction of the interval restriction member 20, and on the upper portion of the vertical plate portion 31. It is mainly composed of a rectangular flat plate portion 32 that is integrally connected and parallel to the upper surface 22 of the interval regulating member 20.

  The vertical plate portion 31 is connected to the end surface 21 of the spacing regulating member 20 and has the same width as that of the spacing regulating member 20 in the vertical direction, thereby ensuring strength for supporting the entire sleeper movement preventing apparatus 10. is doing.

The flat plate portion 32 has a trapezoidal opening 321 as a concave-convex structure penetratingly formed at the center thereof.
The trapezoidal protrusion 106 of the sleeper 100 described above is fitted into the opening 321 from below. In other words, the opening 321 and the protrusion 106 function as a concavo-convex structure formed between the support arm 30 and the sleeper 100 and fitted to each other.
Then, the height of the upper surface of the flat plate portion 32 and the height of the upper surface of the top portion of the projection portion 106 coincide with each other in a state where the projection portion 106 is fitted in the opening portion 321.

  Further, the upper surface 22 of the spacing regulating member 20 is slightly lower than the bottom surface of the bottom of the rail 110 in a state where the projection 106 is fitted in the opening 321. Accordingly, when the openings 321 of the support arms 30 on both sides are fitted to the projections 106 of the sleepers 100 on both sides, as shown in FIG. 6, almost the entire space regulating member 20 is hidden under the rail 110. Can be arranged.

The locking member 40 is a rectangular metal flat plate, and is adhered to the central portion in the longitudinal direction with respect to the upper surface 22 of the interval regulating member 20.
The locking member 40 is shorter than the upper surface 22 in the longitudinal direction of the upper surface 22 of the spacing regulating member 20 and has a length substantially equal to the upper surface 22 in the short direction.
Further, an end opposite to the support arm 30 is bent at a right angle and raised vertically, and an upper end thereof is folded back toward the support arm 30 to form a locking portion 41. In other words, the locking portion 41 is substantially U-shaped when viewed from the longitudinal direction of the interval regulating member 20, and the side edge portion of the bottom portion 113 of the rail 110 can be inserted.
That is, when the sleeper movement preventing device 10 is installed between the sleepers 100 and 100, one end portion in the short direction of the spacing regulating member 20 is supported by the pair of support arm portions 30 and the other end portion is locked. The portion 41 can be supported.

Note that the locking member 40 is not limited to adhesion, and may be attached to the upper surface 22 of the interval regulating member 20 by another method that does not cause a protrusion to be formed upward. Further, the locking member 40 may be attached to the bottom surface of the interval regulating member 20. In that case, the end of the locking member 40 opposite to the support arm 30 is bent and raised at a right angle, and its upper end is higher than the upper surface 22 of the spacing regulating member 20. It needs to be high.

Next, installation of the sleeper movement preventing apparatus 10 will be described.
The sleeper movement preventing apparatus 10 is installed in a state where the floor boards 130, 132, 134 of the track K are not attached in the crossing area.
First, between the sleeper 100 and the sleeper 100, the interval regulating member 20 of the sleeper movement prevention device 10 is inserted below the rail 110, and the locking portion 41 of the locking member 40 is placed on the inner side of the bottom portion 113 of the rail 110. The side edges are locked so that they are inserted.
And the sleeper movement prevention apparatus 10 is made to fit into the opening part 321 of the flat plate part 32 of each support arm part 30 from the bottom separately by the projection part 106 of the sleeper 100 of the both sides from the rail 110 and its both sides It is fixedly installed on the sleeper 100.
In addition, the sleeper movement prevention apparatus 10 is installed in the both ends with respect to all the sleepers 100 of a railroad crossing area.
Moreover, after installation of each sleeper movement prevention apparatus 10, each floor plate 130, 132, 134 is attached to each sleeper 100 from above.

[Technical effects of the embodiment of the invention]
As described above, the sleeper movement preventing apparatus 10 is arranged so that both end portions of the spacing regulating member 20 are individually in contact with the side surface portions that are opposite surfaces of the two sleepers 100 adjacent to each other. Effectively prevent. For this reason, by installing the sleeper movement preventing apparatus 10 between the sleepers 100, it is possible to suppress the movement of the rails 110 in the longitudinal direction of all the sleepers 100.
Moreover, since the support arm part 30 is provided in the position which shifted | deviated to the width direction so that it may not overlap with respect to the said space | interval control member 20 about the longitudinal direction at the both ends of the space | interval control member 20, the space | interval control member 20 is provided. Can be placed on the upper surface of the sleeper 100, while the lower arm 113 is disposed on the lower side of the rail 110. Therefore, both end portions of the space regulating member 20 are supported by the sleepers 100 via the support arm portions 30, and settling of the space regulating member 20 can be suppressed.
Further, since the locking portion 41 of the locking member 40 can be locked to the bottom 113 of the rail 110 on the side opposite to the support arm portion 30 with respect to the spacing regulating member 20, the spacing regulating member 20 One end portion in the short direction is supported by the pair of support arm portions 30, and the other end portion is supported by the locking portion 41. For this reason, it becomes possible to suppress sedimentation of the space | interval control member 20 more effectively.

Further, the sleeper movement preventing apparatus 10 has the distance regulating member 20 under the bottom 113 of the rail 110 and the pair of support arm parts 30 are respectively disposed on the upper surface of the sleeper 100. When viewed visually, most of the sleeper movement preventing apparatus 10 can be superimposed on the sleeper 100 and the rail 110. Accordingly, the ballast tamping work by the multiple tie tamper does not hinder the work.
Therefore, the ballast tamping operation can be executed with the sleeper movement preventing apparatus 10 attached, and the movement of the sleeper 100 at that time can be effectively suppressed.

Moreover, since the flat plate part 32 of a pair of support arm part 30 of the sleeper movement prevention apparatus 10 has the opening part 321 fitted to the projection part 106 provided next to the rail arrangement | positioning part 101 of the sleeper 100 of both sides, a sleeper It is possible to stably maintain the mounting position of the movement preventing device 10.
Moreover, the movement in the direction in which the two sleepers 100 are separated from each other can also be restricted.

  Further, the flat plate portion 32 of the support arm portion 30 is in a state in which the upper surface of the flat plate portion 32 is at the same height as the top portion of the protruding portion 106 in a state where the protruding portion 106 is fitted in the opening 321. Can be prevented from lifting due to the thickness of the flat plate portion 32 of the support arm portion 30 and can be used as it is without being processed to reduce the thickness of the existing base plate 130. It becomes possible to do.

Further, since the entire locking member 40 including the locking portion 41 is formed from a metal plate, the thickness of the locking portion 41 itself can be reduced, and the locking portion 41 bulges against the rail 110 in plan view. Suppress. Thereby, the latching | locking part 41 does not become the hindrance of the ballast tamping operation | work by a multiple tie tamper, and removal of the sleeper movement prevention apparatus at the time of ballast tamping operation | work can be avoided.
In addition, the portion other than the locking portion 41 of the locking member 40 can be made thin overall, and the locking member 40 can be mounted on the upper surface of the interval regulating member 20.

[Others]
The sleeper movement preventing apparatus 10 is made of hard rubber except for the locking member 40, and reduces the burden of installation work and transport work by weight reduction. However, when there is a demand for further strength improvement of the sleeper movement preventing apparatus 10, it is possible to form the sleeper movement preventing device 10 from a material having a higher strength, for example, a metal.

  Further, as described above, when the sleeper movement preventing device 10 is formed of a material having higher strength, the locking portion 41 may also be formed of the same material to be integrated with the interval regulating member 20. Thereby, the locking member 40 can be integrated with the interval regulating member, and the number of parts can be reduced.

  Further, the pair of support arm portions 30 of the sleeper movement preventing apparatus 10 has an upper surface of the flat plate portion 32 that is flush with the upper surface of the top portion of the projection 106 of the sleeper 100, but the upper surface of the flat plate portion 32. May be lower than the upper surface of the top of the protrusion 106. Even in that case, the support arm 30 is not hindered when the floor plate 130 is attached, and the existing floor plate 130 can be used.

  Moreover, although the pair of supporting arm portions 30 of the sleeper movement preventing apparatus 10 illustrated the case where the opening portion 321 of the flat plate portion 32 is fitted to the protrusion portion 106 of the sleeper 100, the sleeper which does not have the protrusion portion 106. In addition, the sleeper movement prevention device 10 can be mounted. In that case, the opening portion 321 may not be formed in the support arm portion 30 of the sleeper movement prevention device 10.

  In addition, although the sleeper 100 is made of concrete, the sleeper movement prevention device 10 can be attached to a sleeper made of other materials.

DESCRIPTION OF SYMBOLS 10 Sleeper movement prevention apparatus 20 Space | interval control member 30 Support arm part 31 Vertical board part 32 Flat plate part 40 Locking member 41 Locking part 100 Sleeper 101 Rail arrangement | positioning part 106 Protrusion part 110 Rail 113 Bottom part 120 Guard rail 130,132,134 Base board 321 Opening K orbit

Claims (5)

An interval regulating member that is arranged between the opposing surfaces of two adjacent sleepers and regulates the change in the interval between these opposing surfaces;
A pair of support arms extending from both ends of the spacing regulating member and joined to the upper surfaces of the two sleepers;
Each of the support arms, with respect to the space restricting member is provided at a position shifted in a direction perpendicular to the longitudinal direction of the space restricting member, viewed from said space restricting member and the support arm portion The sleeper movement preventing apparatus is characterized in that the arrangement is such that it does not overlap in the direction orthogonal to the longitudinal direction of the spacing regulating member .   The sleeper movement preventing apparatus according to claim 1, wherein the support arm portion includes a concavo-convex structure that fits between the sleeper and the sleeper.   The sleeper movement preventing apparatus according to claim 2, wherein the support arm portion has a height equal to or lower than the uneven structure on the sleeper side in a state where the uneven structure is fitted.   The sleeper movement preventing apparatus according to any one of claims 1 to 3, wherein a locking portion for fitting a bottom portion of the rail is provided on the opposite side to the support arm portion in the interval regulating member.   The sleeper movement preventing apparatus according to claim 4, wherein the locking portion is formed of a metal plate.

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