JP2018053442A - Bed plate structure for sleeper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed plate structure for a sleeper which allows a bed plate to be installed and removed in the direction of the track and which allows the arrangement of an insertion type heater.SOLUTION: Provided is a bed plate structure 1 in which an insertion type heater 30 having a plate type heat generating part 31 is arranged on the bed plate 10 of a PC sleeper 100 protruding from a pair of cradles 101 having a fastener 50 mounted to the top face, the bed plate structure comprising: a bed plate body 11 having a long side dimension that can be arranged in the track direction between the pair of cradles and an insertion type heater arrangement part 15 extended in the long side direction; and an adjustable metal fitting 21 arranged at one end of the bed plate body in the long side direction having dimensions that can be adjusted to an overall long side dimension appropriate to the intervals for the pair of cradles based on the long side dimension of the bed plate body. The bed plate main body is provided with a cradle located at a track direction center part at one end of the long side direction and an engaging concave portion along with an engaging part 13 located at the other end of the long side direction which connects to the adjustable metal fitting. The adjustable metal fitting has concave portions on the edge that connects to the engaging part and on the edge in the opposite direction that connects with the cradle on the other end.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sleeper floor plate structure in which a plug heater is attached to a floor plate such as a PC sleeper (prestressed concrete sleeper).

  Conventionally, a snowmelter for preventing freezing or melting snow is attached to a rail branch or the like in a railroad in a cold region. There are two types of snow melters: hot water type and electric type. As an electric snowmelter, there are a hot air type and a direct heating type, and the direct heating type has a heating part of a long wire formed in a linear shape or a heater having a plate-like heating part. There is. Even in the case of direct heating type heaters, in particular, the insertion type heater having a plate-like heat generating part can directly heat a large area of the floor plate by the heat generating part. Is suitable.

  As a prior art of this type, there is one in which the long side and the short side are inserted into the space between the sleeper and the rail to surround the four sides of the floor board, and the electric heater is stored in a storage cylinder integrally formed on the long side ( For example, see Patent Document 1).

  As another prior art, there is one in which a heat generating portion such as a heater cord is embedded in a base material attached to the upper surface of a sleeper (see, for example, Patent Document 2).

JP 2007-154498 A JP 2002-309535 A

  However, in the case of the above-mentioned Patent Document 1, it is difficult to heat a wide area of the floor board at the branching portion because it is structured to heat only from the long side surrounding the floor board. Moreover, in order to heat from the edge of a floor board, much electricity is required and efficiency is bad. Moreover, in the case of the said patent document 2, the wide area of a floor board can be heated. However, it is necessary to attach the heater to the sleeper before laying the rail. Moreover, in order to perform maintenance and inspection, all the rails and the like cannot be removed.

  On the other hand, the plug-in heater having the plate-like heating element may be arranged on the floor plate. However, for example, when a pedestal for a floor plate fastener protrudes from the center of the upper surface in the track direction due to the steel wire provided in the longitudinal direction in the manufacturing stage, such as a PC sleeper, If there is a rail on the upper side, the cradle becomes in the way and the plate-like heat generating part cannot be attached. For this reason, before laying a rail, a heater must be arrange | positioned in an appropriate interior and time is required for arrangement | positioning in a branch part etc. In addition, when it is necessary to replace the heater for maintenance inspection or the like, the plug-in heater cannot be replaced unless the rail is removed from above the sleeper, which requires a lot of time and labor. In particular, at the branch portion, it takes time and labor to remove all the rails and perform maintenance and inspection of the plug-in heater.

  Accordingly, the present invention provides a sleeper floor plate structure in which a plug-in heater can be arranged so that the floor plate can be attached and removed from the track direction even if a base of the floor plate fastener is projected on the upper surface of the sleeper. The purpose is to provide.

  In order to achieve the above object, the sleeper floor plate structure according to the present invention has a plate-like heat generating portion on a sleeper floor plate in which a pair of pedestals for attaching a floor plate fastener to a predetermined position on the upper surface is projected. A floor plate structure in which a plug-in heater is arranged, which is formed to have a long side dimension that can be arranged from a track direction between a pair of cradles, and the plug-in heater arrangement portion is formed to extend in the long side direction. The floor plate body is arranged at one end in the long side direction of the floor plate body, and is formed to have an adjustment dimension that is an overall dimension in the long side direction suitable for the distance between the pair of cradles depending on the long side dimension of the floor plate body. The floorboard body has a recess that engages with one of the cradle at the center in the track direction at one end in the long side direction, and contacts the adjustment metal at the other end in the long side direction. An adjusting portion, and the adjustment fitting contacts the engaging portion. The end opposite direction to the end, has a recess for the other engaging the pedestal. In the specification and claims, the direction in which the main rail extends that intersects the longitudinal direction of the sleeper is referred to as the track direction. Further, the “floor board” in the specification and claims includes a “floor board body” and an “adjustment fitting”.

  With this configuration, even when the pedestal of the floor plate fastener protrudes from the upper surface of the sleeper and there is a rail above the floor plate, the floor plate body can be removed from between the pair of pedestals in the track direction by removing the adjustment bracket. it can. Place the plug-in heater on the floor plate main body that has been removed, place the floor plate main body on the top of the sleeper from the track direction, and place an adjustment bracket on one end of the long side of the floor board main body to secure it to the sleeper. Thus, it is possible to attach and detach the plug-in heater having the plate-like heat generating portion from the track direction from the track direction.

  In addition, the adjustment metal fitting has all the dimensions in the long side direction by an end portion in contact with the engaging portion, a presser portion in contact with an upper surface of the engaging portion, and an end portion of the engaging portion in contact with the receiving base. And an adjusting unit that adjusts. If comprised in this way, the engaging part of a floor board main body will be clamped by a holding part from the upper part, and the long side direction total dimension by the long side dimension of a floor board main body and the dimension of an adjustment part will be suitable between a pair of cradles. Dimensions can be achieved with a simple structure.

  The floor board main body may have a slide portion extending in a horizontal direction from a fixed position of the main rail, and may extend in a long side direction of the slide portion to form the plug-in heater arrangement portion. If comprised in this way, the wide range of a slide part can be heated appropriately by the insertion type heater arrange | positioned at the arrangement | positioning part.

  Moreover, you may have an insulating pad between the lower surface of the said floor board main body and the said adjustment metal fitting, and the upper surface of the said sleeper. If comprised in this way, between the sleeper board and the floor board main body which arrange | positions a plug-in type heater, and an adjustment metal fitting can be insulated appropriately with an insulation pad.

  Further, the concave portion of the floor board body and the concave portion of the adjustment metal fitting have an insulator at a portion in contact with the floor board fastener, and the floor board main body and the adjustment metal fitting are sleepered by the floor plate fastener via the insulator. It may be configured to be fixed to. If comprised in this way, since a floor board main body and an adjustment metal fitting are fixed to a sleeper with a floor board fastener via an insulator, insulation between a sleeper, a floor board main body, and an adjustment metal fitting can be maintained stably. it can.

  The sleeper may be a PC sleeper. If comprised in this way, it will be easy to attach and detach the floor board main body which arranges the plug-type heater which has a plate-like exothermic part in the direction of a track in PC sleeper where a cradle is projected on the upper surface. it can.

  According to the present invention, even when a pedestal for a floor plate fastener projects from the upper surface of the sleeper, the floor plate body in which the plug-in heater having the plate-like heat generating portion is arranged can be inserted between the pair of pedestals. It can be easily installed and removed in the direction of the track and arranged appropriately.

FIG. 1 is a perspective view showing a PC sleeper in which a main rail is fixed to a floor board provided with a floor board structure for sleepers according to an embodiment of the present invention. FIG. 2 is a plan view of the PC sleeper and floor board shown in FIG. 3 is a cross-sectional view taken along the line III-III of the floor board shown in FIG. FIG. 4 is a perspective view of the main rail fixing member and the floor plate fastener removed from the state shown in FIG. FIG. 5 is a perspective view in which an adjustment fitting or the like is removed from the state shown in FIG. 6 is a drawing showing the operation of removing the floorboard body from the state shown in FIG. 5, (A) is a plan view of the operation of horizontally moving the floorboard body in the sleeper longitudinal direction, and (B) is the sleeper body. It is a top view of the operation | movement which carries out horizontal movement to the orbital direction from upper direction. 7A is a plan view of the operation for replacing the plug-in heater from the state shown in FIG. 6B, and FIG. 7B is a plan view of the operation for replacing the insulating pad when the plug-in heater is replaced. It is. FIG. 8 is a plan view showing an example of a branching portion in which a floor board having the sleeper floor board structure shown in FIG. 1 is arranged.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, the sleeper floor board structure 1 applied to the PC sleeper 100 in the branch portion (portion where the tongray is disposed) will be described as an example. Further, one side of the two rails fixed to the PC sleeper 100 will be shown and described. Further, as the floor plate fastener 50 that fixes the floor plate 10 to the PC sleeper 100 and the rail fastener 51 that fixes the main rail 110 to the floor plate main body 11, a wire spring type fastener will be described as an example. Also in the following embodiments, the extending direction of the main rail 110 intersecting the longitudinal direction of the PC sleeper 100 is referred to as a track direction R.

(Configuration of floorboard structure)
FIG. 1 is a perspective view showing a PC sleeper in which a main rail is fixed to a floor board provided with a sleeper floor board structure according to an embodiment. 2 is a plan view of the PC sleeper and the floor board shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line III-III of the floor board shown in FIG.

  As shown in FIGS. 1 and 2, at a predetermined position on the upper surface of the PC sleeper 100, a pair of cradles 101 for attaching a floor plate fastener 50 for fixing the floor plate 10 to the PC sleeper 100 is projected. . The PC sleeper 100 is provided with a steel wire 102 in the inner longitudinal direction at the manufacturing stage. Therefore, the cradle 101 protrudes from the center of the upper surface of the PC sleeper 100 in the track direction R in relation to the position of the steel wire 102.

  The floor board body 11 formed between the pair of cradles 101 is formed to have a long side dimension that can be placed by moving from the track direction R in the horizontal direction without contacting the pair of cradles 101. And an adjustment fitting 21 arranged at one end in the long side direction of the floor board main body 11. The adjustment fitting 21 forms the floor board 10 having all dimensions in the long side direction suitable for the distance between the pair of receiving bases 101 according to the long side dimension of the floor board body 11.

  The floor board main body 11 is provided with a recess 12 located inside one of the receiving bases 101 at the center in the track direction at one end in the long side direction. Moreover, the engaging part 13 engaged with the said adjustment metal fitting 21 is provided in the both ends of the track direction R at the other end part of the long side direction.

  The adjustment fitting 21 is in contact with the engaging portion 13 of the floor plate main body 11, the holding portion 23 in contact with the engaging portion 13, the end surface of the engaging portion 13, and the long side dimension of the floor plate main body 11. And an adjustment part 24 having an adjustment dimension for making the floor board 10 of all dimensions in the long side direction suitable for the interval between the pair of receiving bases 101. In the direction opposite to the end of the adjustment fitting 21 in contact with the engaging portion 13, a recess 22 is provided that is positioned inside the other cradle 101.

  The floor board 10 is composed of a floor board body 11 and an adjustment fitting 21, and the floor board body 11 is set to the long side dimension A and the adjustment fitting 21 is set to the adjustment dimension B, so that the floor board body 11 and the adjustment fitting 21 are PC sleepers. By arranging them side by side between a pair of cradles 101 in the longitudinal direction of 100, the floor plate 10 has a total dimension C in the long side direction suitable for the distance between the pair of cradles 101.

  Further, between the upper surface of the PC sleeper 100 and the lower surface of the floor plate 10 composed of the floor plate main body 11 and the adjusting bracket 21, the PC sleeper 100 and the floor plate 10 on which the plug-in heater 30 is disposed are appropriately insulated. An insulating pad 40 is provided. As the insulating pad 40, a resin pad, a rubber pad, or the like can be used.

  Furthermore, the floor board main body 11 of this embodiment has the slide part 14 of the Tongle rail 115 (FIG. 8) extended in the horizontal direction from the fixed position of the main line rail 110. FIG. The slide portion 14 can be a wear-resistant material (bearing material) having self-lubricating properties. The floor board main body 11 has an arrangement portion 15 in which a plug-in heater 30 having a plate-like heat generating portion 31 is disposed so as to extend in the long side direction of the slide portion 14. As shown in FIG. 3, the arrangement portion 15 of this embodiment is a hole portion in which the plug-in heater 30 is arranged so that the heat generating portion 31 contacts the slide portion 14. In this embodiment, the heat generating portion 31 is urged toward the slide portion 14 by the leaf spring 34. The placement portion 15 is formed between the slide portion 14 and the floorboard body 11. By forming the arrangement portion 15 so that the heat generating portion 31 is in contact with the slide portion 14, the range in which the tongrel 115 slides can be appropriately heated by the plug-in heater 30.

  Further, in the recesses 12 and 22 of the floor board main body 11 and the adjustment fitting 21, insulators 16 and 25 are provided at portions in contact with the floor board fastener 50. As the insulators 16 and 25, rubber members can be used.

  Moreover, the said base 101 of this embodiment can attach the floor board fastener 50 for fixing the said floor board main body 11 and the adjustment metal fitting 21 to the PC sleeper 100. FIG. Thereby, the floor board 10 is attached to the receiving base 101 in a state where the holding part 23 and the adjustment part 24 of the adjustment fitting 21 are engaged with the engagement part 13 of the floor board body 11, so that the floor board 10 is attached to the PC sleeper 100. Can be fixed easily. Moreover, since the floor board fastener 50 fixes the floor board body 11 and the adjustment fitting 21 to the PC sleeper 100 via the insulators 16 and 25, the insulation between the PC sleeper 100 and the floor board body 11 and the adjustment fitting 21 is provided. It can be achieved stably.

  And the insertion type heater 30 is arrange | positioned at the arrangement | positioning part 15 of the said floor board main body 11. FIG. The plug-in heater 30 includes a plate-shaped heat generating part 31, a wiring part 32 for wiring a heater wire to the heat generating part 31, and a wiring 33 for supplying electricity to the wiring part 32. By adopting a structure in which the heat generating part 31 is in the form of a plate and is disposed in the hole of the floor board main body 11, the generated heat of the heat generating part 31 is transmitted to the slide part 14 at almost 100%, and the floor board main body 11 is efficiently consumed with low power consumption. The slide part 14 can be heated.

  As described above, the PC sleeper 100 having the sleeper floor plate structure 1 includes the floor plate body 11 and the adjusting bracket 21 in which the floor plate fastener 50 is attached to the cradle 101 and the plug-in heater 30 is disposed inside. It is fixed to the PC sleeper 100. Then, the main rail 110 is arranged at a predetermined position of the floor board body 11, the fixing bracket 18 is attached to the fixing base 17 provided on the floor board main body 11, the rail fastener 51 is attached to the fixing base 17, and the main line is attached to the fixing base 18. The rail 110 is fixed to the floor board main body 11. In this embodiment, the floor plate fastener 50 and the rail fastener 51 are both wire spring type fasteners, but other fasteners such as fasteners using leaf springs and bolts may be used.

(Replacement procedure for plug-in heater in floorboard structure)
FIG. 4 is a perspective view of the main rail fixing member and the floor plate fastener removed from the state shown in FIG. FIG. 5 is a perspective view in which an adjustment fitting or the like is removed from the state shown in FIG.

  As shown in FIG. 4, from the state shown in FIG. 1, the rail fastener 51 that holds the fixing bracket 18 that fixes the main rail 110 to the floor board body 11 is removed from the fixing base 17. Then, the fixing bracket 18 of the main rail 110 is removed from the fixing base 17. Moreover, the floor board fastener 50 which fixes the floor board main body 11 and the adjustment metal fitting 21 to the PC sleeper 100 is removed. Thereby, the member which has fixed the floor board 10 to the PC sleeper 100 is removed.

  Next, as shown in FIG. 5, the adjustment fitting 21 arranged at one end in the long side direction of the floor board body 11 and the insulator 25 provided in the recess 22 of the adjustment fitting 21 are removed. Moreover, the insulator 16 provided in the recessed part 12 of the floor board main body 11 is also removed.

  6 is a drawing showing the operation of removing the floorboard body from the state shown in FIG. 5, (A) is a plan view of the operation of horizontally moving the floorboard body in the sleeper longitudinal direction, and (B) is the sleeper body. It is a top view of the operation | movement which carries out horizontal movement to the orbital direction from upper direction. 7A is a plan view of the operation for replacing the plug-in heater from the state shown in FIG. 6B, and FIG. 7B is a plan view of the operation for replacing the insulating pad when the plug-in heater is replaced. It is.

  As shown in FIG. 6 (A), by removing the adjustment fitting 21, the floorboard body 11 can be moved in the direction in which the adjustment fitting 21 has been arranged, and the floorboard body 11 is moved in the longitudinal direction of the PC sleeper 100. Move in the direction. For example, by moving the floor board body 11 about 5 to 10 mm in the longitudinal direction of the PC sleeper 100, the recess 12 formed at one end of the floor board body 11 can be shifted in the horizontal direction from the position of the cradle 101. .

  Then, as shown in FIG. 6 (B), the floor board body 11 shifted in the horizontal direction is moved horizontally in the track direction R where the wiring 33 of the plug-in heater 30 comes out. The plug-in heater 30 arranged in the arrangement unit 15 can be shifted in the track direction R from the position of the cradle 101.

  As a result, as shown in FIG. 7A, the plug-type heater 30 in which the heat generating portion 31 is disposed so as to extend in the long side direction of the floorboard body 11 is not brought into contact with the cradle 101 without being brought into contact with the cradle 101. Can be removed in the longitudinal direction. After the plug-in heater 30 is removed, a new plug-in heater 30 can be easily arranged on the arrangement portion 15 of the floor board body 11.

  In the state where the floor heater 11 can be removed from the upper surface of the PC sleeper 100 in the track direction R and the insertion heater 30 can be removed and attached, as shown in FIG. The insulating pad 40 laid between the lower surface of 21 and the upper surface of the PC sleeper 100 can also be removed in the track direction R and easily replaced.

  And the floor board main body 11 after replacing | exchanging the plug-in type heater 30 as mentioned above can be arrange | positioned in an appropriate position by the procedure reverse to an above-described procedure. Specifically, the floor board main body 11 in which the plug-in heater 30 is arranged in the arrangement portion 15 is horizontally moved to the upper surface of the PC sleeper 100, and the PC sleeper 100 is engaged so that the recess 12 is engaged with the cradle 101. Move in the longitudinal direction. Thereafter, the adjustment fitting 21 is arranged at one end of the floorboard body 11, and the adjustment portion 24 of the adjustment fitting 21 is engaged with the engagement portion 13 of the floorboard body 11. And the insulators 16 and 25 are arrange | positioned in each recessed part 12 and 22, and the floor board main body 11 and the adjustment metal fitting 21 are fixed to the PC sleeper 100 by attaching the floor board fastener 50 to the receiving stand 101. FIG.

  Therefore, if the fixing of the main rail 100 fixed to the floor board 10 is released at the branching portion 120 and the fixing of the floor board 10 fixed to the PC sleeper 100 is released, the main rail from above the PC sleeper 100 is released. Without removing 110, the plug-in heater 30 arranged on the floor board 10 can be maintained and inspected. As a result, the time and labor required for maintenance and inspection of the plug-in heater 30 can be greatly reduced.

(Arrangement example of plug-in type heater mounting structure at the branch)
FIG. 8 is a plan view showing an example of a branching portion in which a floor board having the sleeper floor board structure shown in FIG. 1 is arranged. In the branch part 120, a wood sleeper or a synthetic sleeper is usually used, but the sleeper can be a PC sleeper 100 having a high strength. On the upper surface of the PC sleeper 100, a cradle 101 for attaching the floor plate fastener 50 is protruded as described above. If the sleeper floor structure 1 is used for such a branch portion 120, the rail fastener 51 that fixes the main rail 110 to the floor board body 11 is removed, and the floor board body 11 is fixed to the PC sleeper 100. Remove the floor plate fastener 50. Thereby, even when the main rail 110 exists above the PC sleeper 100, the floor plate body 11 can be removed from the upper surface of the PC sleeper 100 in the track direction R by removing the adjusting bracket 21 as described above. it can.

  Therefore, even in a place where a plurality of rails are laid, such as the branch portion 120, the plugs arranged in the floor board main body 11 without affecting the cradle 101 protruding from the upper surface of the PC sleeper 100. Maintenance inspection such as inspection and replacement of the heater 30 can be performed efficiently.

(Summary)
As described above, according to the sleeper floor plate structure 1, the state where the main rail 110 is fixed to the floor plate 10 can be released even with a sleeper in which the receiving base 101 protrudes from the upper surface like the PC sleeper 100. In this case, it is possible to remove and attach the floorboard body 11 by shifting it from the upper surface of the PC sleeper 100 in the track direction R.

  This makes it possible to properly remove the floorboard body 11 from the upper surface of the PC sleeper 100 in the track direction R, such as when inspecting and replacing the plug-in type heater 30 disposed on the floorboard body 11, thereby improving work efficiency. It is possible to perform maintenance and inspection of the plug-in heater 30 well.

  Therefore, even when the stable structure of the track is achieved by using the heavy weight of the PC sleeper 100 at the branch portion 120, which has a complicated structure and is difficult to maintain, maintenance and inspection of the plug-in heater 30 can be performed with high work efficiency. It becomes possible.

  In the above-described embodiment, the PC sleeper 100 has been described as an example. However, for example, an iron sleeper formed of a steel aggregate can be similarly applied, and the sleeper is limited to the above-described embodiment. is not.

  Moreover, in the above-described embodiment, the floor plate in the branching portion 120 has been described as an example. However, in the same manner, the floor plate structure 1 for sleepers can be applied to a place where the plug-in heater 30 is similarly disposed. The place to apply is not limited to the above embodiment.

  Furthermore, the above-described embodiment shows an example, and various modifications can be made without departing from the gist of the present invention, and the present invention is not limited to the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Floor board structure for sleepers 10 Floor board 11 Floor board main body 12 Recess 13 Engagement part 14 Slide part 15 Arrangement part 16 Insulator 21 Adjustment metal fitting 22 Recess 23 Holding part 24 Adjustment part 25 Insulator 30 Plug-in heater 31 Heating part 40 Insulation Pad 50 Floor board fastener 51 Rail fastener 100 PC sleeper 101 Receiving base 110 Main line rail 120 Branch part
A Long side dimension
B Adjustment dimensions
C All long side dimensions
R orbit direction

Claims (6)

A floor board structure in which a plug-type heater having a plate-like heat generating portion is arranged on a sleeper floor board in which a pair of pedestals for attaching a floor board fastener to a predetermined position on the upper surface is provided,
A floor plate body formed in a long side dimension that can be arranged from the track direction between a pair of the cradle, and an arrangement portion of the plug-in heater extending in the long side direction;
An adjustment fitting that is arranged at one end in the long side direction of the floor board main body and is formed in an adjustment dimension that is an overall dimension in the long side direction suitable for the distance between the pair of cradles by the long side dimension of the floor board main body, With
The floorboard body has a recess that engages with one of the cradle at the center in the track direction at one end in the long side direction, and an engaging part that contacts the adjustment fitting at the other end in the long side direction.
The adjustment fitting has a recess that engages with the other of the cradle at an end opposite to an end that contacts the engagement portion.
This is a sleeper floorboard structure. The adjustment metal fitting adjusts the overall dimension in the long side direction by an end portion in contact with the engagement portion, a presser portion in contact with the upper surface of the engagement portion, and an end portion of the engagement portion in contact with the receiving base. And an adjustment unit to
The sleeper floorboard structure according to claim 1. The floor board main body has a slide portion extending in a horizontal direction from a fixed position of the main rail, and extends in a long side direction of the slide portion to form an arrangement portion of the plug-in heater.
The sleeper floorboard structure according to claim 1 or 2. Having an insulating pad between the floor plate body and the lower surface of the adjustment fitting and the upper surface of the sleeper;
The sleeper floorboard structure according to any one of claims 1 to 3. The concave portion of the floor plate main body and the concave portion of the adjustment fitting have an insulator in a portion in contact with the floor plate fastener,
The floor plate body and the adjustment fitting are configured to be fixed to a sleeper with the floor plate fastener via the insulator.
The sleeper floorboard structure according to any one of claims 1 to 4. The sleeper is a PC sleeper,
The sleeper floorboard structure according to any one of claims 1 to 5.

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