JP2007051475A - Sleeper connecting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sleeper connecting structure which can reduce a risk that a bolt or a nut may be loosened or damaged even if a force acts in the direction of the vertical separation of sleeper connecting members, when sleepers are connected to one another by means of the sleeper connecting member. <P>SOLUTION: In this sleeper connecting structure 1, the sleepers are connected to one another by means of a pair of the sleeper connecting members 10a and 10b which are provided with flat plate-like horizontal plates 16 and 18, respectively. The sleeper 81 is connected in a state of being sandwiched between the horizontal plates 16 and 18. The members 10a and 10b are provided with vertical plates 17 and 19, respectively, and the vertical plates 17 and 19 are fixed to each other. Thus, even if a force acts on the horizontal plates 16 and 18 in the direction of vertical separation of them, the motion of them in the direction can be regulated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sleeper tree connection structure that connects a plurality of sleeper trees.

The sleepers generally used have a long shape in which the length in the longitudinal direction is longer than that between the gauges, the longitudinal direction is arranged substantially perpendicular to the rail direction, and each sleeper is fastened to two rails.
And when a train passes on a rail, the same sleeper receives the force which receives from the wheel of both sides via each rail.

  At the rail joints and branching parts, the bending rigidity of the rails is lower than at other parts. Therefore, in the case of a ballast roadbed or the like, ballast consolidation tends to proceed due to the train load. As consolidation progresses, vertical movement (so-called tilting phenomenon) tends to occur when the train passes, and when such vertical movement occurs, the ride comfort deteriorates and there is a problem of track management.

  Therefore, according to the method disclosed in Patent Document 1 and the like, the sleepers are connected to each other so that the load of the train passing over the sleepers is distributed to a plurality of sleepers to take measures against the above problem. .

In the method of Patent Document 1, at least a pair of connecting members each having a flat plate portion are used, and a plurality of sleepers arranged side by side are arranged so as to be sandwiched from above and below by the plate portions, and the plate portion and the sleepers are arranged. It is fixed through a bolt inserted through the through-hole and a nut screwed into the bolt.
JP 2001-98502 A

When using what connected the sleeper tree by the method etc. which were described in patent document 1, a force may be applied to the direction which the two plate parts arrange | positioned so that it may pinch | interpose vertically.
For example, when a part of the connected sleepers receives a large load due to passage of a train or the like, the sleepers are lowered by a relatively small amount relative to other sleepers. Then, since the plate portion of the connecting member that is in a horizontal state is slightly inclined, the relationship between the two plate portions and the sleeper is relatively rotated with the long direction of the sleeper as the central axis. A force acts in a direction in which the part is separated in the vertical direction.

In the connection structure of the sleeper of Patent Document 1, when a force acts in a direction in which the two plate portions are separated in the vertical direction, the connection state is maintained by fastening bolts and nuts. Therefore, when a force is repeatedly applied in such a direction, the bolt or nut may be loosened, and a tensile force may be generated on the bolt to cause deformation or damage.
In addition, in order to increase the fastening force, there is a limit to adopting larger bolts and nuts or increasing the number of bolts and nuts to be fastened.

  Therefore, it is an object to provide a sleeper connection structure that can reduce the risk of loosening and damage of bolts and nuts even when a force acts in a direction away from the vertical direction.

  In order to achieve the above-mentioned object, the invention according to claim 1 is arranged such that a pair of sleeper connecting members having a flat horizontal plate is disposed so that the horizontal plates are positioned above and below a plurality of sleeper trees arranged side by side. In the sleeper tree connecting structure for fixing the sleeper tree connecting members and the sleeper trees and connecting the plurality of sleeper trees, each of the pair of sleeper link connecting members has a vertical plate, and the vertical plates are on the upper side or the lower side. A sleeper linking structure characterized in that it is fixed in a state where the vertical plates are joined together.

  According to invention of Claim 1, a sleeper is connected by a pair of sleeper connecting members, each of the pair of sleeper connecting members has a vertical plate, and the vertical plate is on the upper side or the lower side. Since it extends and is fixed in a state where the vertical plates are aligned, it can be fixed in a state where the pair of vertical plates are aligned with each other. Even in the case of action, the movement in this direction can be restricted.

  The invention according to claim 2 is the sleeper link structure according to claim 1, wherein the pair of vertical plates are arranged so as to extend in the same direction.

  According to invention of Claim 2, since it arrange | positions so that a pair of perpendicular | vertical board may extend in the same direction, it is easy to fix.

  According to a third aspect of the present invention, a spacer is provided on the upper side of the lower horizontal plate disposed below the pair of horizontal plates, and the spacer is disposed between the sleeper and the lower horizontal plate. The sleeper tree connection structure according to claim 1, wherein the sleeper tree is fixed in a state of being closed.

  According to the invention described in claim 3, since the sleeper is fixed in a state where the spacer is arranged between the sleeper and the lower horizontal plate, the height can be adjusted by the spacer.

  According to a fourth aspect of the present invention, the spacer is provided with a space that opens in the vertical direction, and a nut fixed to the lower horizontal plate is disposed in the space, and is formed on the sleeper to be connected. 4. The sleeper tree connection structure according to claim 3, wherein the sleeper tree connection member and each sleeper tree are fixed by screwing the bolts inserted into the through holes and the nuts.

  According to the fourth aspect of the present invention, the spacer is provided with a space that opens in the vertical direction, and the nut is fixed to the lower horizontal plate in the space. It can be on the upper side of the plate, and wear due to the nut coming into contact with the ballast is less likely to occur.

  The invention according to claim 5 is the sleeper tree connection structure according to claim 4, wherein the spacer is formed by filling the space with a liquid resin and solidifying the liquid resin.

  According to the invention described in claim 5, since the liquid resin is filled in the space of the spacer and the liquid resin is solidified, the gap between the spacer and the sleeper can be filled with the liquid resin. , Play can be reduced.

  According to the sleeper connection structure of the present invention, even when a force acts in the direction in which the two horizontal plates of the sleeper connection member are separated in the vertical direction, the risk of loosening or damage of the bolts and nuts can be reduced.

Hereinafter, specific examples of the present invention will be described.
FIG. 1 is a perspective view of a sleeper tree coupling structure according to the first embodiment of the present invention. It is a disassembled perspective view of the sleeper tree connection structure of FIG. 2, FIG. FIG. 3 is a view of the sleeper tree connection structure of FIG. 1 as viewed from the rail direction. FIG. 4 is an exploded perspective view of the sleeper tree connection structure according to the second embodiment of the present invention. FIG. 5 is a perspective view of the sleeper coupling member shown in FIG. 4 as viewed from the back side. FIGS. 6-8 is sectional drawing which showed the middle of the sleeper tree connection structure shown in FIG. 9 is a cross-sectional view showing the sleeper tree connection structure shown in FIG. FIG. 10 is a perspective view showing a modification example of the sleeper coupling member and the spacer. FIG. 11 is a perspective view of the sleeper tree connection structure according to the third embodiment of the present invention. FIG. 12 is an exploded perspective view of the sleeper tree connection structure of FIG. 11.

  The sleeper tree connection structure 1 according to the first embodiment of the present invention is shown in FIGS. 1 to 3, and a sleeper tree 81 arranged on the lower side of the rail 80 is connected using a sleeper tree connection member 10. It is what. The sleeper tree connecting members 10 are arranged at both ends of the sleeper tree 81 in the longitudinal direction, and the sleeper trees 81 are connected at two locations.

  In this embodiment, among the sleepers 81 arranged on the lower side of the rail 80, there are two sleepers 81 to be connected, and these sleepers 81 are arranged so as to sandwich the joint portion 82 of the rail 80. It is what.

  The material of the sleeper tree 81 is not limited, but it is possible to use a material obtained by laminating a foam obtained by reinforcing a hard urethane resin with long glass fibers (product name: Eslon Neo Lumber FFU, manufactured by Sekisui Chemical Co., Ltd.).

The sleeper tree connecting member 10 is an L-shaped steel having an elongated L-shaped cross section. In the sleeper tree connecting structure 1, two are used at each of the two ends of the sleeper 81, for a total of four. ing. The two sleeper coupling members 10 have horizontal plates 16 and 18, respectively. And the horizontal boards 16 and 18 are arrange | positioned at the upper and lower sides of the pillow 81, the sleeper connecting member 10a which has the upper horizontal board 16 located in the upper side, and the lower horizontal board 18 located in the lower side is 10b. And are provided.
The sleeper coupling member 10a and the sleeper coupling member 10b are both L-shaped in cross section, but as will be described later, the vertical plates 17 and 19 have different widths and different shapes.

The sleeper coupling member 10 a located on the upper side has an upper horizontal plate 16 and a vertical portion 17. Further, the sleeper coupling member 10 b located on the lower side includes a lower horizontal plate 18 and a vertical portion 19.
The horizontal plates 16 and 18 and the vertical plates 17 and 19 are long flat plate shapes. The lengths of the horizontal plates 16 and 18 and the vertical plates 17 and 19 are the same as the outer width of the sleeper 81 to be connected, and are the same length between them.
The width of the vertical plate 19 of the sleeper connecting member 10b located on the lower side is larger than the width of the vertical plate 17 of the sleeper connecting member 10a located on the upper side, and the height of the sleeper 81 (length in the vertical direction). Is also big.

The sleeper tree connecting member 10 a is arranged so that the upper horizontal plate 16 is positioned above the upper surface 30 of the sleeper tree 81, the vertical plate 17 is positioned above the upper horizontal plate 16, and extends upward. It is in the state which forms the substantially same plane as the front end 31 of the wood.
Further, the sleeper tree connecting member 10b is arranged such that the lower horizontal plate 18 positioned on the lower side is positioned on the lower side of the lower surface 32 of the sleeper tree 81 and extends upward, and the vertical plate 19 is positioned on the mouth of the sleeper tree 81. It arrange | positions so that it may be located in the outer side of the surface 31. FIG.
Therefore, the pair of vertical plates 10a and 10b used in the sleeper tree connection structure 1 are arranged to extend in the same direction.

Further, when the sleeper connecting member 10a and the sleeper connecting member 10b are arranged, the vertical plate 17 and the vertical plate 19 are in a state of being overlapped with each other. By fixing the vertical plate 17 and the vertical plate 19, The sleeper link member 10a and the sleeper link member 10b are fixed.
Further, the vertical plate 19 of the sleeper connecting member 10b can cover the front end 31 of the sleeper 81.
The sleeper 81 is sandwiched between the upper horizontal plate 16 of the sleeper connecting member 10a located on the upper side and the lower horizontal plate 18 of the sleeper connecting member 10b located on the lower side.

Through holes 16 a and 18 a are formed in the horizontal plates 16 and 18. The positions of the through holes 16a and 18a are adjusted to the positions of the through holes 81a provided in the sleeper 81, the through holes 16a, 18a and 81a can be communicated, and bolts 12 which will be described later can be inserted.
The vertical plates 17 and 19 are formed with through holes 17a and 19a. The positions of the through-holes 17a and 19a are provided at positions where the sleeper-tree connecting members 10a and 10b communicate with each other, and the bolts 37 can be inserted with the through-holes 17a and 19a communicated. Then, the nut 37a is screwed into the inserted bolt 37, and the sleeper connecting member 10a and the sleeper connecting member 10b are fixed.

The sleeper tree connection structure 1 is formed by arranging a sleeper tree connection member 10 a and a sleeper tree connection member 10 b at the end of the sleeper tree 81. next,
The sleeper connecting member 10a, the sleeper connecting member 10b, and the sleeper 81 are connected by the bolt 12 and the nut 15, and the sleeper connecting member 10a and the sleeper connecting member 10b are connected by the bolt 37 and the nut 37a.
Specifically, the through holes 81a of the sleeper tree 81 and the through holes 16a and 18a of the sleeper tree connecting members 10a and 10b are aligned, the bolts 12 are inserted, and the through holes of the lower horizontal plate 18 of the sleeper connecting member 10b. The bolt 12 is screwed into the nut 15 fixed to the lower side of 18a. Further, bolts 37 are inserted into the through holes 17a and 19a of the sleeper coupling members 10a and 10b and screwed into the nuts 37a. The nuts 15 and 37a can be fixed by welding or the like.
In this way, the sleeper tree 81 is connected and the sleeper tree connecting members 10a and 10b are prevented from coming off.
In addition, although the sleeper 81 formed beforehand may be used for the through-hole 81a of the sleeper 81, you may perforate when forming the sleeper connection structure 1.

  The operation of connecting the sleeper trees 81 as in the sleeper connection structure 1 can be performed by removing as many ballasts (not shown) as necessary while being arranged below the rails 80. However, the sleeper trees 81 are removed from the rails 80. The sleeper tree 81 can be connected in the state, and the sleeper tree 81 can be connected to the lower side of the rail 80.

And as shown in FIG. 1, the both ends of the two pillows 81 are connected, and the sleeper connection structure 1 is completed. Since the sleeper tree connection structure 1 is provided at the joint portion 82 of the rail 80, consolidation of the ballast can be reduced by the train load, and the occurrence of the so-called tilt phenomenon can be reduced.
Further, even when a force is applied in the direction in which the sleeper coupling members 10a and 10b are separated in the vertical direction, the vertical plates 17 and 19 are fixed, so that the two horizontal plates 16 and 18 are outside in the vertical direction. , The distance between the sleeper coupling members 10a and 10b is maintained to prevent a large force from being applied to the bolt 12, and the loosening of the bolt 12 and the nut 15 can be prevented.

  Furthermore, even if the bolt 12 is loosened, the sleeper coupling members 10a and 10b do not come off. That is, since the bolt 12 is inserted from above, even if the bolt 12 becomes loose, the sleeper tree connecting members 10a and 10b and the through holes 16a, 18a and 81a of the sleeper 81 are maintained inserted. The members 10a and 10b do not leave the sleeper tree 81.

Next, the sleeper connection structure 2 in the second embodiment of the present invention will be described. The sleeper tree connection structure 2 is shown in FIG. 4, and the sleeper tree connection member 10 is different from the sleeper tree connection structure 1 described above.
Specifically, the sleeper connecting member 10b having the lower horizontal plate 18 disposed below the sleeper 81 in the sleeper connecting member 10 is different, and the lower horizontal plate 18 disposed on the lower side is different. A spacer 50 is provided on the upper side.

  As shown in FIGS. 4 and 5, the spacer 50 of the sleeper connection member 10 of the sleeper connection structure 2 is formed with a space 50 b that opens upward and downward. Unlike the above-described embodiment, the nut 15 is disposed in the space 50b and fixed to the upper side of the lower horizontal plate 18 disposed on the lower side by welding or the like.

  As for the outer shape of the spacer 50, the width (length in the rail 80 direction) is substantially the same as the width of the sleeper 81, and the depth (length in the longitudinal direction of the sleeper 81) is substantially the same as the width of the lower horizontal plate 18. It is. Moreover, the height of the surrounding board 50 is the same in any place, and the distance between the upper end 50a of the spacer 50 and the upper horizontal board 16 is substantially equal to the height of the sleeper 81.

The sleeper tree connection structure 2 is formed by connecting the sleeper tree 81 with the sleeper tree connection member 10 as in the case of the above-described embodiment.
Specifically, as shown in FIG. 6, sleeper coupling members 10 a and 10 b are arranged on the end 31 of the sleeper 81. Then, the sleeper coupling members 10a and 10b are fixed by inserting bolts 37 into the through holes 17a and 19a and screwing them together with the nuts 37a.

  Next, the sleeper 81 is drilled from the through hole 16a with a drill (not shown) to form the through hole 81a, which is in the state shown in FIG. In addition, what formed the through-hole 81a in the sleeper 81 previously may be used.

Further, a liquid resin is poured from the through hole 16a, and the space 50b of the spacer 50 is filled with the liquid resin. At this time, since the liquid resin leaks from the through hole 18a of the lower horizontal plate 18, the liquid resin is prevented from leaking with a seal tape or the like.
After filling an appropriate amount of liquid resin, before the liquid resin is solidified, the bolts 12 are inserted and screwed into the nut 15. Thereafter, the liquid resin is solidified to become the resin solidified portion 51, and the sleeper tree connection structure 2 is completed.

  Since the liquid resin enters and solidifies when there is a gap, when there is a gap between the spacer 50 and the sleeper 81, the liquid resin can be solidified to fill the gap, and the sleeper coupling member 10b and the sleeper 81 The backlash can be reduced. Moreover, since the nut 15 is being fixed to the upper side of the lower horizontal board 18, the nut 15 and the front-end | tip part of the volt | bolt 12 become difficult to wear with a ballast.

  The shape of the space 50b of the spacer 50 of the sleeper link structure 2 is rectangular, but other shapes can be used as long as the nut 15 can be disposed. For example, a circular shape as shown in FIG. 10 can be used.

  Next, the sleeper tree connection structure 3 shown in FIGS. 11 and 12 will be described. The sleeper tree connection structure 3 is connected using the sleeper tree connection member 10 in the same manner as the sleeper tree connection structures 1 and 2 described above, but the vertical plate 17 of the sleeper connection member 10a having the upper horizontal plate 16 is located below. It is arranged to extend to the side.

The vertical plate 19 of the sleeper coupling member 10a having the lower horizontal plate 18 is arranged so as to extend upward. Further, the vertical plates 17 and 19 overlap each other in the vicinity of the cuff surface 31 of the sleeper tree 81, and the bolts 37 are inserted into the through holes 17 a and 19 a formed in the vertical plates 17 and 19. The sleeper connecting member 10a and the sleeper connecting member 10b are fixed by screwing the nuts 37a to each other.
Further, the nut 37 a may be fixed inside the vertical plate 19.

  In the above sleeper tree connection structures 1, 2, and 3, there are two sleeper trees 81 to be connected, but three or more sleeper trees may be connected.

It is a perspective view of the sleeper tree connection structure in the 1st embodiment of the present invention. It is a disassembled perspective view of the sleeper tree connection structure of FIG. It is the figure which looked at the sleeper tree connection structure of FIG. 1 from the rail direction. It is a disassembled perspective view of the sleeper tree connection structure in the 2nd Embodiment of this invention. It is the perspective view which looked at the pillow connection member shown in FIG. 4 from the back side. It is sectional drawing which showed the middle of the sleeper tree connection structure shown in FIG. It is sectional drawing which showed the middle of the sleeper tree connection structure shown in FIG. It is sectional drawing which showed the middle of the sleeper tree connection structure shown in FIG. It is sectional drawing which showed the sleeper tree connection structure shown in FIG. It is the perspective view which showed the sleeper connection member and the modification of a spacer. It is a perspective view of the sleeper tree connection structure in the 3rd embodiment of the present invention. It is a disassembled perspective view of the sleeper tree connection structure of FIG.

Explanation of symbols

1, 2, 3 Sleeper tree connection structure 10, 10a, 10b Sleeper tree connection member 12 Bolt 15 Nut 16, 18 Horizontal plate 16a, 18a Through hole 50 Spacer 80 Rail 81 Sleeper tree 81a Through hole

Claims (5)

A plurality of sleeper coupling members having a flat horizontal plate are arranged so that horizontal plates are positioned above and below a plurality of sleeper trees arranged in parallel, and the plurality of sleeper coupling members and each sleeper are fixed, In the sleeper tree connection structure that connects the sleeper trees,
Each of the pair of sleeper connecting members has a vertical plate, the vertical plate extends upward or downward, and is fixed in a state in which the vertical plates are combined with each other. Linked structure.   The sleeper link structure according to claim 1, wherein the pair of vertical plates are arranged so as to extend in the same direction.   Among the pair of horizontal plates, a spacer is provided on the upper side of the lower horizontal plate arranged on the lower side, and the sleeper is fixed in a state where the spacer is arranged between the sleeper and the lower horizontal plate. The sleeper tree connection structure according to claim 1 or 2, characterized in that   The spacer is provided with a space that opens in the vertical direction, and a nut fixed to the lower horizontal plate is disposed in the space, and a bolt inserted into a through-hole formed in the sleeper to be connected; The sleeper tree coupling structure according to claim 3, wherein the sleeper tree coupling member and each sleeper tree are fixed by screwing the nut.   The sleeper link structure according to claim 4, wherein the space is formed by filling a liquid resin into a space of the spacer and solidifying the liquid resin.

Images