JP7007314B2 - Rail support device - Google Patents

Description

The present disclosure relates to a rail support device.

Conventionally, a railroad track, that is, a track, has a structure in which sleepers are arranged on a roadbed on a roadbed and rails are laid on the pillows. In recent years, long rails made by welding a plurality of rails in the longitudinal direction into one are widely adopted from the viewpoint of improving riding comfort and reducing maintenance costs. In the case of a long rail, the amount of expansion and contraction due to temperature changes becomes large, so an expansion and contraction seam that can absorb expansion and contraction is widely adopted as a tongue rail with a sharp end of the rail (for example, Patent Documents). See 1.).

Japanese Unexamined Patent Publication No. 07-294453

However, in the above-mentioned conventional technique, since the tongue rail obtained by processing the end portion of the rail into a sharp shape is used, the cost becomes high.

Here, in order to solve the problems of the conventional technique, a clearance is set at the joint between the long rail and the standard rail, and the long rail is attached to one of a pair of adjacent pillows so as to be displaceable in the longitudinal direction. On the other hand, a rail support device capable of effectively absorbing the expansion and contraction of a long rail is provided by making a standard rail non-displaceable in the longitudinal direction and having a simple structure and low cost. The purpose is.

Therefore, the rail support device includes a rail breath and a rail support member attached to each of the pair of rails adjacent to each other, and a joint between the standard rail and the long rail between one and the other of the rails. A standard rail is laid on one of the pillows so that a gap is located, a long rail is laid on the other of the pillows, and the rail breath and the rail support member attached to one of the pillows are The rail breath and the rail support member, which are arranged so as to face each other, sandwich the standard rail from both sides and support the standard rail in a non-displaceable manner in the longitudinal direction, and are attached to the other side of the pillow, face each other. The long rail is sandwiched from both sides to support the long rail so as to be displaceable in the longitudinal direction.

In other rail support devices, the rail support member further supports a derailment prevention guard disposed facing the entire range of the seam gap.

In still other rail support devices, the derailment prevention guard is further fixed to the standard rail.

In yet another rail support device, the rail breath and the rail support member are further attached to a floor plate attached to the upper surface of the pillow, and the rail breath is adjustable in distance from the opposite rail support member. It is attached to the floor board as described above.

In yet another rail support device, the floorboard is further attached to the upper surface of the pillow, straddling both of the pair of pillows.

In yet another rail support device, the rail support member further includes a substrate mounted on the top surface of the floorboard, at the tip of the substrate at one end in the width direction of the bottom of the standard rail and / or long rail. A rail bottom pusher is formed to hold the rail.

In still other rail support devices, the rail bottom pusher further covers a notch recess into which one end of the bottom of the standard rail and / or long rail in the width direction can enter, and an eave that covers the upper side of the notch recess. Including the part.

In yet another rail support device, the pair of sleepers are integrally connected to each other.

According to the present disclosure, the rail support device sets a clearance between the long rail and the standard rail, and attaches the long rail to one of a pair of adjacent pillows so as to be displaceable in the longitudinal direction, and also to the other. Install the shaku rail in the longitudinal direction so that it cannot be displaced. As a result, it is possible to effectively absorb the expansion and contraction of the long rail while having a simple structure and low cost.

It is a top view which shows the rail support device in 1st Embodiment. It is a perspective view which shows the rail support device in 1st Embodiment. It is sectional drawing of the rail support device in 1st Embodiment. It is an enlarged view of the main part of the rail support device in 1st Embodiment. It is an enlarged view of the main part in a state where a part of the rail support device in the 1st Embodiment is omitted. It is a top view which shows the rail support device in 2nd Embodiment. It is a perspective view which shows the rail support device in 2nd Embodiment. It is sectional drawing of the rail support device in 2nd Embodiment. It is a perspective view which shows the rail support device in 3rd Embodiment.

Hereinafter, embodiments will be described in detail with reference to the drawings.

1 is a plan view showing the rail support device according to the first embodiment, FIG. 2 is a perspective view showing the rail support device according to the first embodiment, and FIG. 3 is a perspective view showing the rail support device according to the first embodiment. A cross-sectional view, FIG. 4 is an enlarged view of a main part of the rail support device in the first embodiment, and FIG. 5 is an enlarged view of a main part in a state where a part of the rail support device in the first embodiment is omitted. In FIG. 3, (a) is a cross-sectional view taken along the line AA in FIG. 1, (b) is a cross-sectional view taken along the line BB in FIG. 1, and (a) is C in FIG. Part enlarged view, (b) is a part D enlarged view in FIG.

In the figure, 11A is a railroad track, that is, a long rail among rails (rails) which are one of the elements constituting the track, and 11B is a standard rail among the rails (rails). The standard rail 11B is a rail shipped from a manufacturer and generally has a length (rail length) of 25 [m], but in the present embodiment, the length is not necessarily limited. It is not necessary and can be set arbitrarily. Further, the long rail 11A is formed by welding a plurality of rails in the longitudinal direction into one, and generally has a length (rail length) of 200 [m] or more. In the form of, the length is not necessarily limited and can be set arbitrarily. Hereinafter, when the long rail 11A and the standard rail 11B are described in an integrated manner, they will be described as the rail 11.

As shown in FIGS. 1 and 2, the rail support device according to the present embodiment includes the long rail 11A and the standard rail 11B in a state where the clearance 12 is set at the joint between the long rail 11A and the standard rail 11B. Support. The dimension of the clearance 12 in the longitudinal direction of the rail 11 is preferably 90 [mm] or less, but in the present embodiment, the dimension is not necessarily limited and can be set arbitrarily. In FIGS. 1 and 2, the portions of the long rail 11A and the standard rail 11B opposite to the seam are not shown.

The joint portion of the long rail 11A and the standard rail 11B is supported by sleepers 15 by a so-called "hanging seam". That is, on a plurality of sleepers 15 arranged in the longitudinal direction of the rail 11, the space 12 is laid between the pair of sleepers 15 adjacent to each other so that the space 12 is located, and the pair of sleepers is located. A long rail 11A is attached to one of the 15 so as to be displaceable in the longitudinal direction, and a standard rail 11B is attached to the other so as to be non-displaceable in the longitudinal direction. Specifically, the long rail 11A and the standard rail 11B are attached to the sleepers 15 via the rail breath 21 and the guard support member 31. Here, a floor plate 41 which is a plate material having a size straddling both of a pair of sleepers 15 adjacent to each other is attached to the upper surface of both sleepers 15, and the rail breath 21 and the guard support member 31 are floor plates. The case where it is attached to the upper surface of 41 will be described. That is, it is assumed that the rail breath 21 and the guard support member 31 are attached to the sleepers 15 via the floor plate 41. The floor plate 41 is, for example, by inserting a mounting bolt (not shown) into a bolt hole 43 which is a through hole formed in a suitable place and screwing the mounting bolt into the sleeper 15 to fix the sleeper. It is attached to the upper surface of 15. As a result, the pair of sleepers 15 are integrated with each other via the floor plate 41.

In this embodiment, it is used to explain the configuration and operation of each part such as the rail 11, sleepers 15, rail breath 21, guard support member 31, floor plate 41, and other members, and the upper, lower, and left sides. , Right, front, rear, etc. are not absolute but relative, and each part such as rail 11, sleepers 15, rail breath 21, guard support member 31, floor plate 41, etc. and others. It is appropriate when the member of is in the posture shown in the figure, but when the posture changes, it should be changed and interpreted according to the change in the posture.

The rail breath 21 is arranged outside the left and right rails 11 to support the rail 11, and the guard support member 31 is arranged outside the left and right rails 11 to support the rail 11. Functions as a member. The guard support member 31 is primarily a member that supports the guard material 13 as a derailment prevention guard grounded along the rail 11.

In the present embodiment, the guard material 13 has a dimension in the longitudinal direction that is at least larger than the dimension of the clearance 12 at the joint between the long rail 11A and the standard rail 11B, and faces the entire range of the clearance 12. Arranged in. Further, the guard material 13 is fixed to the standard rail 11B by a holder (not shown) at a position opposite to the long rail 11A in the longitudinal direction of the rail 11, but is not fixed to the long rail 11A. In FIG. 2, for convenience of illustration, the drawing of the guard material 13 is omitted.

The rail breath 21 has a main body portion 22 and a push portion 24, and further has a guide protrusion 25 protruding downward from the lower surface of the main body portion 22 as shown in FIGS. 3 and 4. The lower end portion 24b of the push portion 24 presses the upper surface of the bottom portion 11c of the rail 11, and the tip portion 24a of the push portion 24 presses the side surface of the abdomen 11b connecting the bottom portion 11c of the rail 11 and the head portion 11a. Fix the rail 11. Then, the guide protrusion 25 is slidably inserted into the breath guide groove 42 formed in the floor plate 41. Further, a bolt guide groove 23 penetrating from the upper surface to the lower surface is formed in the main body portion 22, and a breath guide bolt 27 whose lower end is fixed to the floor plate 41 is inserted in the bolt guide groove 23. As shown in FIG. 1, the breath guide groove 42 and the bolt guide groove 23 are parallel to each other and are inclined with respect to the longitudinal direction of the rail 11. Therefore, the distance between the rail breath 21 and the rail 11 can be adjusted by sliding the rail breath 21 of the floor plate 41 in the longitudinal direction of the rail 11 along the breath guide groove 42 and the bolt guide groove 23. become. By tightening the breath stop nut 26 screwed to the upper end of the breath guide bolt 27, the rail breath 21 can be fixed to the floor plate 41 at a predetermined position.

The guard support member 31 is attached so as to diagonally connect the flat plate-shaped substrate 32, the vertical plate 33 vertically erected on the upper surface of the substrate 32, and the back surface of the vertical plate 33 and the upper surface of the substrate 32. It has a pair of slanted plates 34. In FIG. 2, for convenience of illustration, the drawing of the guard support member 31 is simplified. Then, as shown in FIGS. 3 and 4, a guard material 13 made of a steel material having an L-shaped cross section is attached to the guard support member 31 so as to cover the top of the vertical plate 33 and the front surface in the vicinity of the top. Be supported. Further, the substrate 32 is fixed to the upper surface of the floor plate 41 by a fixing means such as a bolt (not shown).

In the present embodiment, the guard support member 31 also functions as a rail support member for supporting the rail 11. Specifically, one end in the width direction of the bottom portion 11c of the rail 11 is attached to the tip of the substrate 32. A rail bottom pressing portion 32a for pressing is formed. As shown in FIG. 5, the rail bottom push portion 32a has a notched recess 32a1 in which the lower surface side of the tip of the substrate 32 is recessed in a notch shape, and an eaves portion 32a2 that covers the upper side of the notch recess 32a1. Includes. Then, as shown in FIGS. 3 and 4, the substrate 32 is placed on the upper surface of the floor plate 41 in a state where one end in the width direction of the bottom portion 11c of the rail 11 mounted on the upper surface of the floor plate 41 has entered the notch recess 32a1. By fixing, the tip of the bottom portion 11c that has entered the notch recess 32a1 is pressed from above by the eaves portion 32a2, so that the bottom portion 11c of the rail 11 is fixedly supported. As shown in FIG. 5, the rail mounting surface 41a, which is the place where the bottom portion 11c of the rail 11 is placed on the upper surface of the floor plate 41, is recessed downward from other places on the upper surface of the floor board 41. May be.

Further, in the present embodiment, the rail breath 21 attached to the sleepers 15 on the standard rail 11B side of the pair of sleepers 15 adjacent to each other via the floor plate 41 has a distance from the standard rail 11B. That is, the mounting position is adjusted so that the distance from the facing guard support member 31 is shortened, so that the tip portion 24a and the lower end portion 24b of the push portion 24 of the rail breath 21 are formed on the standard rail 11B. Strongly press the side surface of the abdomen 11b and the upper surface of the bottom 11c. Therefore, the standard rail 11B is sandwiched and firmly supported from both sides by the rail breath 21 and the guard support member 31 that cooperates with the rail breath 21, and is firmly supported not only in the lateral direction but also in the longitudinal direction. It is attached to the sleeper 15 in a non-displaceable state.

On the other hand, the rail breath 21 attached to the sleepers 15 on the long rail 11A side of the pair of sleepers 15 adjacent to each other via the floor plate 41 is at a distance from the long rail 11A, that is, the guard support member 31 facing each other. The mounting position is adjusted so that the distance from the rail breath 21 is relatively long, so that the tip portion 24a and the lower end portion 24b of the push portion 24 of the rail breath 21 are the side surface and the bottom portion 11c of the abdomen portion 11b of the long rail 11A. The upper surface of the abdomen 11b is loosely pressed, or as shown in FIG. 4A, the side surface of the abdomen 11b and / or the upper surface of the bottom portion 11c is not contacted. Therefore, since the long rail 11A is loosely sandwiched and loosely supported from both sides by the rail breath 21 and the guard support member 31 that cooperates with the rail breath 21, it is almost non-displaceable in the lateral direction. However, it is attached to the sleeper 15 in a state where it can be displaced in the longitudinal direction.

As described above, the rail support device in the present embodiment includes a rail breath 21 and a guard support member 31 attached to each of the pair of sleepers 15 adjacent to each other. Then, the standard rail 11B is laid on one of the pillows 15 so that the gap 12 between the standard rail 11B and the long rail 11A is located between one of the pillows 15 and the other. A long rail 11A is laid on the other side of the hook 15, and the rail breath 21 and the guard support member 31 attached to one side of the pillow 15 are arranged so as to face each other, and the standard rail 11B is sandwiched from both sides. The standard rail 11B is non-displaceable in the longitudinal direction, and the rail breath 21 and the guard support member 31 attached to the other side of the pillow 15 are arranged so as to face each other, and the long rail 11A is sandwiched from both sides. Supports the long rail 11A so that it can be displaced in the longitudinal direction.

As a result, the expansion and contraction of the long rail 11A can be effectively absorbed while having a simple structure and low cost.

Further, the guide support member 31 supports the guard material 13 arranged so as to face the entire range of the gap 12 of the seam. This makes it possible to reliably prevent the derailment of the railway vehicle at the seam.

Further, the guard material 13 is fixed to the standard rail 11B. As a result, the guard material 13 does not need to be fixed to the long rail 11A and does not hinder the expansion and contraction of the long rail 11A.

Further, the rail breath 21 and the guard support member 31 are attached to the floor plate 41 attached to the upper surface of the sleeper 15, and the rail breath 21 is attached to the floor plate 41 so that the distance from the opposite guard support member 15 can be adjusted. Attached to. As a result, the distance between the rail breath 21 attached to the sleeper 15 on the standard rail 11B side via the floor plate 41 and the guard support member 31 is shortened, and the standard rail 11B is provided by the rail breath 21 and the guard support member 31. Is supported from both sides so that it cannot be displaced in the longitudinal direction, and the distance between the rail breath 21 attached to the sleeper 15 on the long rail 11A side via the floor plate 41 and the guard support member 31 is relatively long. The long rail 11A can be loosely sandwiched from both sides by the rail breath 21 and the guard support member 31, and can be supported so as to be displaceable in the longitudinal direction.

Further, the floor plate 41 is attached to the upper surface of the sleepers 15 straddling both of the pair of sleepers 15. As a result, the distance between the pair of sleepers 15 is stably maintained, and the rail breath 21 and guard support member 31 attached to the sleepers 15 on the standard rail 11B side and the sleepers 15 on the long rail 11A side The distance between the attached rail breath 21 and the guard support member 31 is also stably maintained.

Further, the guard support member 31 includes a substrate 32 attached to the upper surface of the floor plate 41, and a rail bottom pressing portion 32a for pressing one end of the bottom portion 11c of the rail 11 in the width direction is formed at the tip of the substrate 32. The rail bottom push portion 32a includes a notch recess 32a1 into which one end of the bottom 11c of the rail 11 in the width direction can enter, and an eaves portion 32a2 that covers the upper side of the notch recess 32a1. As a result, the bottom portion 11c of the rail 11 is reliably supported by the guard support member 31.

Next, the second embodiment will be described. For those having the same structure as that of the first embodiment, the description thereof will be omitted by assigning the same reference numerals. Further, the description of the same operation and the same effect as that of the first embodiment will be omitted.

6 is a plan view showing the rail support device according to the second embodiment, FIG. 7 is a perspective view showing the rail support device according to the second embodiment, and FIG. 8 is a perspective view showing the rail support device according to the second embodiment. It is a cross-sectional view. 8A is a cross-sectional view taken along the line EE in FIG. 6, and FIG. 8B is a cross-sectional view taken along the line EF in FIG.

In the present embodiment, the sleeper 15 that supports the joint portion between the long rail 11A and the standard rail 11B is a so-called "synthetic sleeper", which is a composite material composed of long glass fibers and hard foamed urethane. It is made by accumulating several plates to form a sleeper shape. The sleepers 15 are formed shorter than the sleepers 15 in the first embodiment.

Further, the pair of sleepers 15 adjacent to each other are integrally connected by the connecting portion 15a. As a result, the distance between the pair of sleepers 15 is stably maintained.

In FIG. 1 of the first embodiment, the long rail 11A is drawn so as to be located on the right side of the seam gap 12, and the standard rail 11B is drawn so as to be located on the left side of the seam gap 12. In FIG. 6 of the present embodiment, the long rail 11A is drawn so as to be located on the left side of the gap 12 of the seam, and the standard rail 11B is drawn so as to be located on the right side of the space 12 of the seam.

Further, since the configurations, actions and effects of other points are the same as those of the first embodiment, the description thereof will be omitted.

Next, a third embodiment will be described. As for those having the same structure as those of the first and second embodiments, the same reference numerals are given and the description thereof will be omitted. Further, the description of the same operation and the same effect as those of the first and second embodiments will be omitted.

FIG. 9 is a perspective view showing the rail support device according to the third embodiment.

In the present embodiment, the floor board 41 is not large enough to straddle a pair of sleepers 15 adjacent to each other, but is large enough to be attached to the upper surface of each of the pair of sleepers 15. It is a plate material.

Since the configurations, actions, and effects of other points are the same as those of the second embodiment, the description thereof will be omitted.

The disclosure herein also describes features relating to suitable and exemplary embodiments. Various other embodiments, modifications and modifications within the scope and purpose of the claims attached herein can be naturally conceived by those skilled in the art by reviewing the disclosure of the present specification. be.

The present disclosure can be applied to rail support devices.

11A Long rail 11B Standard length rail 11c Bottom 12 Clearance 13 Guard material 15 Sleepers 21 Rail breath 31 Guard support member 32 Board 32a Rail bottom push part 32a1 Notch recess 32a2 Eaves 41 Floor plate

Claims (8)

It has a rail breath and rail support members that can be attached to each of a pair of pillows that are adjacent to each other.
A standard rail is laid on one of the pillows so that the gap between the standard rail and the long rail is located between one of the pillows and the other, and the long rail is placed on the other of the pillows. Is laid,
The rail breath and the rail support member attached to one of the pillows are arranged so as to face each other, and the standard rail is sandwiched from both sides to support the standard rail in the longitudinal direction in a non-displaceable manner.
The rail breath and the rail support member attached to the other side of the pillow are arranged so as to face each other, and the long rail is sandwiched from both sides to support the long rail in a displaceable manner in the longitudinal direction. Rail support device. The rail support device according to claim 1, wherein the rail support member supports a derailment prevention guard disposed so as to face the entire range of the gap between the seams. The rail support device according to claim 2, wherein the derailment prevention guard is fixed to the standard rail. The rail breath and the rail support member are attached to a floor plate attached to the upper surface of the pillow, and the rail breath is attached to the floor plate so that the distance from the opposite rail support member can be adjusted. The rail support device according to any one of 3. The rail support device according to claim 4, wherein the floor plate straddles both of the pair of pillows and is attached to the upper surface of the pillow. The rail support member includes a substrate attached to the upper surface of the floor plate, and a rail bottom push portion that presses one end in the width direction of the bottom of the standard rail and / or a long rail is formed at the tip of the substrate. The rail support device according to claim 4 or 5. The rail according to claim 6, wherein the rail bottom push portion includes a notched recess into which one end of the bottom of the standard rail and / or the long rail in the width direction can enter, and an eaves portion covering the upper side of the notched recess. Support device. The rail support device according to any one of claims 1 to 7, wherein the pair of sleepers are integrally connected to each other.

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