JP2010265627A - Sleeper fastening structure of magnetic levitation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sleeper fastening structure of a magnetic levitation system capable of improving the performance absorbing a sleeper displacement which is caused by extension and contraction of a rail due to change of temperature. <P>SOLUTION: This sleeper fastening structure of the magnetic levitation system for fixing the rail 4 on a roadbed 2 through the sleeper 3 having a flange part 12 on at least a lower side is constituted by attaching the flange part 12 of the sleeper 3 on the roadbed 2 through an elastic body 9 on which metallic plates 5, 11 are stuck on both of upper and lower faces, fixing the metallic plate 11 on the upper side of the elastic body 9 on the flange part 12 by fastening means 17, 18, and fixing the metallic plate 5 on the lower side of the elastic body 9 on the roadbed 2 by a fastening means 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a magnetic levitation system such as a magnetic levitation vehicle or a magnetic transfer device, and more particularly to a sleeper fastening structure for a magnetic levitation system that fixes a rail on a roadbed via a sleeper having a flange portion.

Conventionally, as a track of a magnetically levitated vehicle, there is one in which a roadbed extending in the vehicle traveling direction is provided on the ground side, and a rail is fixed on the roadbed via sleepers. In such a magnetically levitated vehicle track, the sleepers may be displaced due to the expansion and contraction of the rail accompanying a change in temperature and the load applied to the rail when the vehicle is passing, which may hinder the stable operation of the vehicle.
For this reason, a sleeper fastening structure configured to absorb the displacement of the sleeper when the sleeper is displaced due to the expansion and contraction of the rail accompanying the temperature change has been proposed (for example, Patent Document 1).

  FIG. 9 shows an example of a conventional sleeper fastening structure 40 for a magnetically levitated vehicle. The sleeper fastening structure 40 is applied to the track of a magnetically levitated vehicle (not shown), and a roadbed 41 made of concrete or the like extending along the vehicle traveling direction is provided on the ground side. On the roadbed 41, a pair of pedestals 42 are placed in the width direction of the roadbed 41.

  As shown in FIG. 9, a base plate 44 is disposed above the pair of pedestals 42 via an adjustment pad 43 made of rubber or the like. A sleeper 45 made of H-shaped steel is arranged so as to bridge the pair of base plates 44. On the upper side of the sleepers 45, rails 46 are arranged so as to extend along the vehicle traveling direction (longitudinal direction of the roadbed 41).

  As shown in FIG. 9, in the conventional sleeper fastening structure 40, the sleepers 45 are arranged on the base plate 44 via the first elastic members 47. A through-hole 49 is provided in the lower flange portion 48 of the sleeper 45. A cylindrical spacer 50 is inserted into the through hole 49, and the second elastic member 51 is disposed between the outer peripheral surface of the spacer 50 and the inner peripheral surface of the through hole 49.

  Further, a washer-shaped third elastic member 52 is disposed above the lower flange portion 48 of the sleeper 45, and a flat washer 53 is disposed above the third elastic member 52. . The fixing bolt 54 is inserted into the flat washer 53, the third elastic member 52, and the spacer 50 and screwed into the base plate 44. Thereby, the lower flange part 48 and the base plate 44 of the sleeper 45 are fastened.

  From the above configuration, in the conventional sleeper fastening structure 40, when a force in the direction of arrow F acts on the sleeper fastening structure 40 due to expansion and contraction of the rail 46 accompanying a temperature change, the sleeper 45 slides with respect to the roadbed 41. Later it rotates in the direction of the arrow. At this time, the displacement of the sleepers 45 is absorbed by the elastic deformation of the first to third elastic members 47, 51, 52.

JP-A-9-268506

  However, in the above-described conventional sleeper fastening structure 40, since the lower flange portion 48 of the sleeper 45 and the base plate 44 are fastened by the fixing bolt 54, a force in the direction of arrow F acts on the sleeper fastening structure 40. The movement of the lower flange portion 48 and the base plate 44 is restricted by the fixing bolt 54, and the elastic deformation effect of the first elastic member 47 sandwiched between them is not fully utilized, and the sleepers There was a problem that the displacement of 45 could not be absorbed sufficiently.

  Further, in the above-described conventional sleeper fastening structure 40, when a force in the direction of arrow F is applied to the sleeper fastening structure 40, elastic deformation occurs at three locations of the first to third elastic members 47, 51, 52. It was difficult to predict how the sleepers 45 would be displaced. For this reason, it is difficult to predict the load load or the like received by each elastic body 47, 51, 52 at the design stage, and the performance of each elastic body 47, 51, 52 cannot be set according to the load load or the like. . Accordingly, there is a problem that the displacement of the sleepers 45 caused by the expansion and contraction of the rail accompanying the temperature change cannot be sufficiently absorbed.

  The present invention has been made in view of such circumstances, and the purpose thereof is a sleeper of a magnetic levitation system capable of further improving the absorbability of sleeper displacement caused by rail expansion and contraction accompanying temperature change. It is to provide a fastening structure.

  In order to solve the above-described problems of the prior art, according to an embodiment of the present invention, in the sleeper fastening structure of a magnetic levitation system for fixing a rail on a roadbed via a sleeper having a flange portion at least on the lower side, The flange part of the sleeper and the roadbed are attached via an elastic body with metal plates bonded to both upper and lower surfaces, and the upper metal plate of the elastic body is fixed to the flange part by fastening means, and the elastic A metal plate on the lower side of the body is fixed to the roadbed by fastening means.

  According to another embodiment of the present invention, the lower metal plate is composed of a first metal plate and a second metal plate arranged one above the other, and the first metal plate is While being adhered to the elastic body, it is fixed to the second metal plate by fastening means, and the second metal plate is fixed to the roadbed by fastening means.

  According to another embodiment of the present invention, the lower metal plate is provided with a stopper extending to a position above the flange portion of the sleeper, and the stopper is provided with the flange portion. Is restricted from moving upward.

  According to another embodiment of the present invention, the flange portion and the upper metal plate are formed with tap holes that pass through the flange portion and extend to the inside of the upper metal plate, The flange portion and the upper metal plate are fastened by inserting bolts into the tap holes from the upper surface of the flange portion.

  According to another embodiment of the present invention, a track of a magnetic levitation system including the sleeper fastening structure is provided.

Further, according to the sleeper fastening structure of the magnetic levitation system according to the present invention, in the sleeper fastening structure of the magnetic levitation system for fixing the rail on the roadbed via the sleeper having the flange portion at least on the lower side, the flange of the sleeper And the base plate are attached via an elastic body having metal plates bonded to both upper and lower surfaces, and the upper metal plate of the elastic body is fixed to the flange portion by fastening means, and the lower side of the elastic body Since the metal plate is fixed to the roadbed by the fastening means, the space between the flange portion and the lower metal plate is supported only by the elastic body, and the sleepers are caused by the expansion and contraction of the rail accompanying the temperature change. When a force is applied to the fastening structure, the elastic deformation of the elastic body is not limited by a fastening means such as a fixing bolt as in the prior art, and the elastic body can be elastically deformed more flexibly with respect to the displacement of the sleepers. Thereby, the load and vibration which arise by the displacement of a sleeper can be absorbed more compared with the past.
Furthermore, when force is applied to the sleeper fastening structure due to the expansion and contraction of the rail accompanying temperature change, the elastic deformation has occurred in three places in the past, whereas in the present invention, the elastic deformation occurs in only one place. Therefore, it becomes easy to predict the displacement of sleepers. Thereby, it becomes easy to predict the load load or the like received by the elastic body at the design stage, the performance of the elastic body can be set according to the predicted load load, and the absorbency against the load and vibration generated in the sleeper fastening structure is further improved. .
In addition, since only one elastic body is used as compared with the prior art, the number of parts can be reduced and the cost can be reduced.

Further, according to the sleeper fastening structure of the magnetic levitation system according to the present invention, the lower metal plate is composed of a first metal plate and a second metal plate arranged above and below, and the first metal plate A metal plate is bonded to the elastic body and fixed to the second metal plate by fastening means, and the second metal plate is fixed to the roadbed by fastening means. When assembled on a roadbed, a structure in which sleepers, an elastic body, and a first metal plate are integrated, and a second metal plate are separately manufactured at a factory or the like, and each is separately transported to the roadbed. be able to. When the lower metal plate has a single structure, it is necessary to transport all the members as a unit, which increases the size of the structure to be transported, but the lower metal plate has two metal plates. The size of the first metal plate bonded to the elastic body can be set small, and as a result, the size of the structure to be transported is reduced. Thereby, conveyance to a roadbed becomes easy.
In addition, when assembling the sleeper fastening structure on the roadbed, first, after assembling only the second metal plate on the roadbed, the structure in which the sleeper, the elastic body, and the first metal plate are integrated is the first. 2 metal plate. Thus, as compared with the case where the lower metal plate has a single structure, not only the individual size to be assembled is reduced, but also the assembly work on the roadbed can be performed separately. Attaching work becomes easy, and as a result, assembling accuracy improves.

  According to the sleeper fastening structure of the magnetic levitation system according to the present invention, the lower metal plate is provided with a stopper extending to a position above the flange portion of the sleeper, and the stopper is Since the upward movement of the flange part is regulated, when a vertical upward load is applied to the sleeper in the event of an abnormality such as an earthquake or a typhoon, the flange part will hit the stopper, Can be prevented. As a result, even when an earthquake or typhoon occurs, the vehicle can be stably operated.

  Further, according to the sleeper fastening structure of the magnetic levitation system according to the present invention, the flange portion and the upper metal plate are formed with tap holes that pass through the flange portion and extend to the inside of the upper metal plate. And the flange portion and the upper metal plate are fastened by inserting bolts into the tap holes from the top surface of the flange portion. After overlapping the upper metal plate, the bolt can be inserted from the upper surface of the flange portion in that state, and the fastening operation is facilitated. Thereby, workability | operativity in a factory can be improved.

  In addition, according to the present invention, since the track of the magnetic levitation system provided with the sleeper fastening structure is provided, the same effect as the sleeper fastening structure described above can be obtained.

It is sectional drawing of the vehicle running direction in the sleeper fastening structure for magnetic levitation vehicles concerning a 1st embodiment of the present invention. It is the sectional view on the AA line of FIG. It is sectional drawing of the vehicle running direction in the sleeper fastening structure for magnetically levitated vehicles which concerns on 2nd Embodiment of this invention. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is sectional drawing of the vehicle running direction in the sleeper fastening structure for magnetically levitated vehicles which concerns on 3rd Embodiment of this invention. It is the sectional view on the AA line of FIG. It is sectional drawing of the vehicle running direction in the sleeper fastening structure for magnetically levitated vehicles which concerns on 4th Embodiment of this invention. It is the sectional view on the AA line of FIG. It is sectional drawing of the vehicle running direction in the conventional sleeper fastening structure for magnetic levitation vehicles.

[First Embodiment]
Hereinafter, a sleeper fastening structure for a magnetically levitated vehicle according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view in the vehicle traveling direction in the sleeper fastening structure according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA in FIG.

  The sleeper fastening structure 1 according to the present embodiment is applied to a track of a magnetically levitated vehicle (not shown), and a roadbed 2 made of concrete or the like extending along the vehicle traveling direction is provided on the ground side. ing.

  As shown in FIGS. 1 and 2, a pair of sleeper fastening structures 1 are provided on the roadbed 2 in the width direction of the roadbed 2 (direction orthogonal to the vehicle traveling direction). A plurality of the pair of sleeper fastening structures 1 are arranged at regular intervals along the longitudinal direction of the roadbed 2 (vehicle traveling direction). The sleepers 3 are arranged so as to bridge the pair of sleeper fastening structures 1, and the sleepers 3 extend along the width direction of the roadbed 2. The rail 4 for a magnetically levitated vehicle is fixed on the sleeper 3 so as to extend along the longitudinal direction of the roadbed 2.

  As shown in FIG. 1, a rectangular base plate 5 (lower metal plate) is disposed on the roadbed 2. The base plate 5 is provided with a pair of insertion holes 6 in the longitudinal direction of the roadbed 2. The roadbed 2 and the base plate 5 are fastened by inserting the anchor bolts 7 into the respective insertion holes 6 and screwing them into the roadbed 2.

  As shown in FIG. 1, an elastic body 9 is disposed on the upper surface 5 a of the base plate 5 via a first adhesive layer 8. A metal plate 11 (upper metal plate) is disposed on the upper surface 9 a of the elastic body 9 via the second adhesive layer 10. And the sleeper 3 which consists of H-shaped steel is mounted in the upper surface 11a of this metal plate 11, This sleeper 3 is arrange | positioned so that the flange parts 12 and 13 may be located up and down.

  As shown in FIG. 1, a pair of through holes 15 are provided in the lower flange portion 12 of the sleeper 3 so as to face each other with the web portion 14 of the sleeper 3 interposed therebetween. The metal plate 11 is also provided with bolt holes 16 at positions corresponding to the through holes 15. The lower flange portion 12 of the sleeper 3 and the metal plate 11 are fastened by a fixing bolt 17. The fixing bolt 17 is inserted into the bolt hole 16 and the through hole 15 from the lower side of the metal plate 11 and is screwed to a nut 18 disposed on the lower flange portion 12 of the sleeper 3.

  As shown in FIG. 1, a recess 9 b is provided on the upper surface 9 a of the elastic body 9 at a position corresponding to the bolt hole 16 of the metal plate 11. A head 17 a of the fixing bolt 17 is embedded in the recess 9 b in a state where the elastic body 9 and the metal plate 11 are bonded via the second adhesive layer 10.

  Moreover, as shown in FIG. 1, the rail 4 is arrange | positioned so that it may extend along the longitudinal direction of the roadbed 2 on the upper surface 13a of the upper side flange part 13 of the sleeper 3, and the rail 4 is fastening means, such as a volt | bolt. (Not shown) is fixed to the upper flange portion 13 of the sleeper 3.

  Next, a procedure for assembling the sleeper fastening structure 1 according to the present embodiment will be described.

In the present embodiment, first, the lower flange portion 12 of the sleeper 3 and the metal plate 11 are overlapped. Then, the fixing bolt 17 is inserted into the bolt hole 16 and the through hole 15 from the lower side of the metal plate 11 and screwed into a nut 18 disposed on the lower flange portion 12 of the sleeper 3.
Next, the metal plate 11 and the upper surface 9 a of the elastic body 9 are bonded via the second adhesive layer 10. At this time, the head 17 a of the fixing bolt 17 is embedded in the recess 9 b of the elastic body 9.
Thereafter, the upper surface 5 a of the base plate 5 and the lower surface 9 c of the elastic body 9 are bonded via the first adhesive layer 8. The procedure so far is performed in a factory or the like, and transported onto the roadbed 2 in a state of a structure in which the sleepers 3, the elastic body 9, the base plate 5, and the like are integrated.
Finally, a structure in which the sleepers 3, the elastic body 9, the base plate 5, and the like are integrated is disposed on the roadbed 2. At this time, the anchor bolt 7 is inserted into each insertion hole 6 of the base plate 5 and screwed into the road bed 2 to fasten the road bed 2 and the base plate 5.
Thus, the procedure for assembling the sleeper fastening structure 1 is completed.

  According to the sleeper fastening structure 1 for a magnetically levitated vehicle according to the present embodiment, the lower flange portion 12 and the roadbed 2 of the sleeper 3 have the metal plate 11 bonded to the upper side and the base plate 5 bonded to the lower side. The metal plate 11 on the upper side of the elastic body 9 is fastened to the lower flange portion 12 of the sleeper 3 with fixing bolts 17 and nuts 18, and the base plate 5 on the lower side of the elastic body 9 is attached. Since it is fastened to the roadbed 2 by the anchor bolt 7, the space between the lower flange portion 12 of the sleeper 3 and the base plate 5 is supported only by the elastic body 9, and due to the expansion and contraction of the rail 4 accompanying the temperature change, etc. When force is applied to the sleeper fastening structure 1, the elastic deformation of the elastic body 9 is not limited by a fastening means such as a fixing bolt as in the prior art, and the elastic body 9 is elastically deformed more flexibly with respect to the displacement of the sleeper 3. It is possible . Thereby, the load and vibration which arise by the displacement of the sleeper 3 can be absorbed more compared with the past.

Furthermore, according to the sleeper fastening structure 1 for a magnetically levitated vehicle according to the present embodiment, when a force is applied to the sleeper fastening structure 1 due to expansion and contraction of the rail 4 accompanying a temperature change, conventionally, elastic deformation occurs at three locations. In contrast, in the present invention, since the elastic deformation occurs only at one location of the elastic body 9, the displacement of the sleepers 3 can be easily predicted. Thereby, it becomes easy to predict the load load or the like that the elastic body 9 receives in the design stage, the performance of the elastic body 9 can be set according to the predicted load load, and the absorbency with respect to the load and vibration generated in the sleeper fastening structure 1 is improved. More improved.
In addition, since only one elastic body 9 is used, the number of parts can be reduced and the cost can be reduced.

[Second Embodiment]
Hereinafter, a sleeper fastening structure for a magnetically levitated vehicle according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a cross-sectional view in the vehicle traveling direction in the sleeper fastening structure according to the second embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along line AA of FIG. In addition, about the part similar to what was demonstrated by embodiment mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  As shown in FIGS. 3 and 4, in the present embodiment, the base plate 5 includes a first plate (first metal plate) 19 and a second plate (second metal plate) 20 that are arranged one above the other. It is composed of

  As shown in FIG. 3, the first plate 19 is formed so that the length in the longitudinal direction of the roadbed 2 is shorter and the thickness is thinner than the second plate 20. A pair of bolt insertion holes 21 are provided in the first plate 19 so as to face each other with the elastic body 9 interposed therebetween.

  As shown in FIG. 3, the upper surface 19 a of the first plate 19 is bonded to the lower surface 9 c of the elastic body 9 via the first adhesive layer 8. The first plate 19 and the second plate 20 are fastened by fastening bolts 22. The fastening bolt 22 is inserted into the bolt insertion hole 21 from the upper side of the first plate 19 and screwed into the second plate 20.

  As shown in FIG. 3, the second plate 20 has a pair of insertion holes 23 in the longitudinal direction of the roadbed 2. The roadbed 2 and the second plate 20 are fastened by inserting the anchor bolts 24 into the respective insertion holes 23 and screwing them into the roadbed 2.

  Next, a procedure for assembling the sleeper fastening structure 1 according to the present embodiment will be described.

In the present embodiment, first, the lower flange portion 12 of the sleeper 3 and the metal plate 11 are overlapped. Then, the fixing bolt 17 is inserted into the bolt hole 16 and the through hole 15 from the lower side of the metal plate 11 and screwed into a nut 18 disposed on the lower flange portion 12 of the sleeper 3.
Next, the metal plate 11 and the upper surface 9 a of the elastic body 9 are bonded via the second adhesive layer 10. At this time, the head 17 a of the fixing bolt 17 is embedded in the recess 9 b of the elastic body 9.
Thereafter, the upper side of the first plate 19 and the lower surface 9 c of the elastic body 9 are bonded via the first adhesive layer 8. The procedure so far is performed in a factory or the like, and the structure in which the sleepers 3, the metal plate 11, the elastic body 9, and the first plate 19 are integrated is transported onto the roadbed. At this time, the second plate 20 is transported separately from the structure.
Then, the second plate 20 is disposed on the roadbed 2. At this time, the anchor bolt 24 is inserted into the insertion hole 23 of the second plate 20 and screwed into the roadbed 2 to fasten the second plate 20 and the roadbed 2.
Finally, the above-described structure is disposed on the second plate 20. At this time, the fastening bolt 22 is inserted into the bolt insertion hole 21 and screwed into the second plate 20 to fasten the first plate 19 and the second plate 20.
Thus, the procedure for assembling the sleeper fastening structure 1 is completed.

  As described above, according to the sleeper fastening structure 1 for a magnetically levitated vehicle according to the present embodiment, the base plate 5 includes the first plate 19 and the second plate 20 arranged above and below, and the first plate 19 The plate 19 is bonded to the elastic body 9 through the first adhesive layer 8 and is fixed to the second plate 20 by fastening bolts 22, and the second plate 20 is fixed to the roadbed 2 by anchor bolts 24. Therefore, when the sleeper fastening structure 1 is assembled on the roadbed 2, the structure in which the sleeper 3, the elastic body 9, and the first plate 19 are integrated with each other and the second plate 20 are separated in a factory or the like. Can be separately transported to the roadbed 2. When the base plate 5 has a single structure, it is necessary to transport all the members as one body, which increases the size of the structure to be transported. However, the base plate 5 is composed of two plates 19 and 20. Thus, the size of the first plate 19 bonded to the elastic body 9 can be set small, and as a result, the size of the structure to be transported is reduced. Thereby, conveyance to the roadbed 2 becomes easy.

  Moreover, according to the sleeper fastening structure 1 for a magnetically levitated vehicle according to the present embodiment, when the sleeper fastening structure 1 is assembled on the roadbed 2, first, only the second plate 20 is assembled on the roadbed 2. The structural body in which the sleepers 3, the elastic body 9, and the first plate 19 are integrated is fastened to the second plate 20. Thus, as compared with the case where the single base plate 5 is configured, not only the individual size to be assembled is reduced, but also the assembly work on the roadbed 2 can be performed separately. As a result, the assembly accuracy is improved.

[Third Embodiment]
Hereinafter, a sleeper fastening structure for a magnetically levitated vehicle according to a third embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a cross-sectional view in the vehicle traveling direction in the sleeper fastening structure according to the third embodiment of the present invention, and FIG. 6 is a cross-sectional view along the line AA in FIG. In addition, about the part similar to what was demonstrated by embodiment mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  As shown in FIGS. 5 and 6, in this embodiment, a stopper 25 is provided on the upper surface 5 a of the base plate 5. The stopper 25 includes a flange portion 26 positioned on the upper surface 5 a of the base plate 5, a standing portion 27 standing upward from the flange portion 26, and a lower flange portion 12 of the sleeper 3 from the upper end 27 a of the standing portion 27. And an extending portion 28 extending to a position above the.

  As shown in FIGS. 5 and 6, a fixing hole 29 is provided in the flange portion 26 of the stopper 25. Here, the anchor bolt 7 is inserted into the fixing hole 29 of the stopper 25 and the insertion hole 6 of the base plate 5 and is screwed into the roadbed 2. Thereby, the stopper 25 is fixed to the upper surface 5 a of the base plate 5, and the base plate 5 is fastened to the roadbed 2.

  As described above, according to the sleeper fastening structure 1 for a magnetically levitated vehicle according to the present embodiment, the upper surface 5a of the base plate 5 includes the extending portion 28 that extends to a position above the lower flange portion 12 of the sleeper 3. Since the stopper 25 regulates the upward movement of the lower flange portion 12 of the sleeper 3, the stopper 25 is vertically upward on the sleeper 3 when there is an abnormality such as an earthquake or a typhoon. When a load is applied, the lower flange portion 12 comes into contact with the stopper 25, and an abnormal rise of the sleepers 3 can be prevented. As a result, even when an earthquake or typhoon occurs, the vehicle can be stably operated.

[Fourth Embodiment]
Hereinafter, a sleeper fastening structure for a magnetically levitated vehicle according to a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a cross-sectional view in the vehicle traveling direction in the sleeper fastening structure according to the fourth embodiment of the present invention, and FIG. 8 is a cross-sectional view taken along line AA in FIG. In addition, about the part similar to what was demonstrated by embodiment mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  As shown in FIGS. 7 and 8, in the present embodiment, the metal plate 11 is formed thicker than the first embodiment. Here, in the lower flange portion 12 and the metal plate 11 of the sleeper 3, a tap hole 30 that penetrates the lower flange portion 12 and extends to the inside of the metal plate 11 is formed. The lower flange portion 12 of the sleeper 3 and the metal plate 11 are fastened by inserting the bolt 31 into the tap hole 30 from the upper surface 12a of the lower flange portion 12 of the sleeper 3.

Thus, according to the sleeper fastening structure 1 for a magnetically levitated vehicle according to the present embodiment, the lower flange portion 12 and the metal plate 11 of the sleeper 3 penetrate the lower flange portion 12 and the metal plate 11 A tap hole 30 extending to the inside is formed, and the lower flange portion 12 and the metal plate 11 of the sleeper 3 are fastened by inserting a bolt 31 from the upper surface 12a of the lower flange portion 12 into the tap hole 30. Therefore, when the sleeper fastening structure 1 is assembled, after the lower flange portion 12 of the sleeper 3 and the metal plate 11 are overlapped, the bolt 31 may be inserted from above the lower flange portion 12 in that state. That is, when the lower flange portion 12 of the sleeper 3 and the metal plate 11 are fastened, the fastening operation is easier than in the first embodiment in which the fixing bolt 17 is inserted from the lower side of the metal plate 11. Become. Thereby, workability | operativity in a factory can be improved.
In the case of the first embodiment, since the fixing bolt 17 is inserted from the lower side of the metal plate 11, it is necessary to provide the concave portion 9 b in which the head 17 a of the fixing bolt 17 is embedded in the upper surface 9 a of the elastic body 9. However, in the present embodiment, it is not necessary to perform such processing on the elastic body 9 and the elastic body 9 may be manufactured in a rectangular shape, so that processing work in a factory or the like is facilitated.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Sleeper fastening structure 2 Roadbed 3 Sleeper 4 Rail 5 Base plate 5a Upper surface 6,23 Insertion hole 7,24 Anchor bolt 8 First adhesive layer 9 Elastic body 9a Upper surface 9b of elastic body Recess 9c of elastic body Lower surface of elastic body DESCRIPTION OF SYMBOLS 10 2nd contact bonding layer 11 Metal plate 11a Upper surface 12,13 of metal plate Flange part 12a of sleeper, 13a Upper surface of flange part 14 Sleeper web part 15 Through hole 16 Bolt hole 17 Fixing bolt 17a Fixing bolt head 18 Nut 19 First plate 20 Second plate 21 Bolt insertion hole 22 Fastening bolt 25 Stopper 26 Stopper flange portion 27 Stopper standing portion 27 a Upper end portion 28 Stopper extension portion 29 Fixing hole 30 Tap hole 31 Bolt 40 (Conventional) Sleeper fastening structure 41 (Conventional) Roadbed 42 (Conventional) Base 43 (Conventional) Adjustment pad 4 4 (Conventional) Base plate 45 (Conventional) Sleeper 46 (Conventional) Rail 47 (Conventional) First elastic material 48 (Conventional) Lower flange portion 49 of the sleeper (Conventional) Through hole 50 (Conventional) Spacer 51 (Conventional) Second Elastic material 52 (conventional) third elastic material 53 (conventional) flat washer 54 (conventional) fixing bolt

Claims (5)

In a sleeper fastening structure of a magnetic levitation system that fixes a rail on a roadbed via a sleeper having a flange part at least on the lower side,
The flange part of the sleeper and the roadbed are attached via an elastic body having metal plates bonded to both upper and lower surfaces, and the upper metal plate of the elastic body is fixed to the flange part by fastening means, A sleeper fastening structure for a magnetic levitation system, wherein a lower metal plate of an elastic body is fixed to the roadbed by fastening means.   The lower metal plate is composed of a first metal plate and a second metal plate arranged above and below, and the first metal plate is bonded to the elastic body and is fastened by fastening means. The sleeper fastening structure for a magnetic levitation system according to claim 1, wherein the sleeper is fastened to a second metal plate, and the second metal plate is fastened to the roadbed by fastening means.   The lower metal plate is provided with a stopper extending to a position above the flange portion of the sleeper, and the stopper regulates the upward movement of the flange portion. The sleeper fastening structure for a magnetic levitation system according to claim 1 or 2.   The flange portion and the upper metal plate are formed with tap holes that pass through the flange portion and extend to the inside of the upper metal plate, and the flange portion and the upper metal plate are connected to the flange. The sleeper fastening structure for a magnetic levitation system according to any one of claims 1 to 3, wherein the fastening is performed by inserting a bolt into the tap hole from an upper surface of a part. The track | orbit of the magnetic levitation system provided with the sleeper fastening structure as described in any one of Claims 1 thru | or 4.

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