JP6570920B2 - ATS ground child - Google Patents

Description

  The present invention relates to a ground element of an ATS (Automatic Train Stop Device).

  Conventionally, an ATS (automatic train stop device) has been used as one of safety devices for train operation. In general, the ATS receives a signal from a ground element installed on the ground side along the rail via a vehicle element installed on the train, and based on information obtained from the received signal, And the operation control of the brake device of the train are performed (for example, see Patent Document 1).

  Here, FIG. 7 shows an ATS ground unit 100 as an example of a conventional ATS ground unit. As illustrated, the ATS ground unit 100 includes a ground unit main body 102 having a substantially rectangular shape in plan view, and an installation board 40 for installing the ground unit main body 102 along the rail R. The installation board 40 is positioned and fixed with respect to the rail R by fixing members 80 and 82, and the ground element main body 102 is attached to the upper surface side thereof. The ground element main body 102 includes a plate-like portion 22 configured by incorporating a coil (not shown) or the like in a resin case, for example, and a chamber portion 36 protruding downward from the lower surface of the plate-like portion 22. The bolt 70 is inserted into the bolt insertion hole 24 provided in the plate-like portion 22, and is fixed to the installation board 40 by the bolt 70 and the nut 72. At this time, a space is provided between the plate-like portion 22 and the installation substrate 40, so that the chamber portion 36 protruding downward from the plate-like portion 22 has a U-shape in plan view provided on the installation substrate 40. An annular collar 74, a flat washer 76, and a rubber pad 78 are installed between the plate-like portion 22 and the installation board 40 so as to be disposed in the recess 40a, and a bolt 70 is inserted into the center hole thereof. Yes.

  Further, on the upper surface of the plate-like portion 22, a coil center mark 28 indicating the center position of the built-in coil in the horizontal direction in FIG. 7 and a ground unit tester used for testing the ATS ground unit 100 are guided to the installation position. Guide protrusions 30, nameplates 32, drain holes 34, and the like are provided, and a cable 38 for power supply and the like is connected to the chamber portion 36. In FIG. 7B, the installation substrate 40 and the fixing members 80 and 82 are virtual sections of portions through which fastening members such as bolts 70 are inserted.

JP 2009-171655 A

By the way, for example, when a train traveling in a cold region is subject to snow and ice, the snow and ice may be peeled off while the train is running due to a change in outside air temperature or train vibration. There is. In this case, the snow and ice peeled off from the train fall with energy proportional to the running speed of the train and the weight of the train itself. For this reason, the ATS ground element 100 installed along the rail R laid particularly in a cold region may be damaged by colliding with the above-mentioned snowfall or the like. The case is damaged. Of course, there is a concern that even if only the case is damaged, rainwater or the like enters from the damaged part to reach the internal components such as a coil and damage the function of the ATS ground unit 100, even if the case only is damaged. It was.
The present invention has been made in view of the above problems, and an object thereof is to prevent damage to the ATS ground unit caused by snowfall or the like.

(Aspect of the Invention)
The following aspects of the present invention exemplify the configuration of the present invention, and will be described separately for easy understanding of various configurations of the present invention. Each section does not limit the technical scope of the present invention, and some of the components of each section are replaced, deleted, or further while referring to the best mode for carrying out the invention. Those to which the above components are added can also be included in the technical scope of the present invention.

(1) An ATS ground element including a ground element body having a substantially rectangular shape in plan view and an installation board for installing the ground element body along the rail, wherein at least a part of the surface of the ground element body ATS ground element which protective layer is provided in the region.

  The ATS ground unit described in this section includes a ground unit main body and an installation board. The ground unit main body communicates with the vehicle upper unit installed on the train. It is installed along the rail at a position suitable for communication with the car upper. The ground unit body is provided with a protective layer in at least a part of the surface. The area where the protective layer is provided is arbitrarily set in consideration of the shape, size, installation position, and the like of the ground element body. In other words, because it is installed at a position where it can communicate well with the train's upper arm, a protective layer is provided in any area against the ground child body that is likely to collide with snowfall from the train. Therefore, if a protective layer is provided in an area where snowfall or the like is likely to collide, the impact of the snowfall or the like colliding with the ground unit main body is suppressed. This prevents damage to the ATS ground element caused by snowfall or the like.

(2) In the above item (1), on the upper surface of the ground unit main body, a convex coil center mark indicating the center position of the coil built in the ground unit main body, and the ground used for the test of the ATS ground unit. A guide protrusion for guiding the child tester to the installation position, and the protective layer is defined by using the coil center mark and the guide protrusion. An ATS ground element provided so as not to affect the positional accuracy of the first aspect (Claim 1).
The ATS ground unit described in this section has a convex coil center mark indicating the center position of a coil built in the ground unit body on the upper surface of the ground unit body, and a ground unit tester used for testing the ATS ground unit. And a guide projection for guiding the lens to the installation position. The protective layer is provided so as not to affect the position accuracy of the ground unit body or the ground unit tester, which is determined by using the coil center mark and the guide protrusion, so that the protective layer can provide snowfall. While the impact due to the collision is suppressed, it does not affect the confirmation of the center position of the coil built in the ground unit body and the installation of the ground unit tester on the ground unit body.

(3) In the above item (2), the protective layer is formed of a polyurea resin coating, and the polyurea resin coating has a thickness capable of confirming the protruding state of the coil center mark and the guide protrusion, An ATS ground element provided from above the coil center mark and the guide projection (claim 2).
The ATS ground element described in this section is provided with a polyurea resin coating as a protective layer in at least a part of the surface of the ground element body. Here, the polyurea resin is a compound mainly composed of urea bonds formed by a chemical reaction between isocyanate and amino group, and has a fast curing time, impact resistance, water resistance, chemical resistance, heat resistance, durability. It has the characteristic that it is excellent in property, adhesiveness, etc. For this reason, by forming a coating film of polyurea resin having excellent impact resistance, the impact of collision such as snowfall is effectively suppressed by the coating film of polyurea resin, and the damage of the ATS ground element is more reliably ensured. It will be prevented. Furthermore, since the polyurea resin is excellent in water resistance, durability, and the like, the water resistance, durability, and the like of the ground element body on which the polyurea resin coating film is formed are improved.

In addition, since the ATS ground element described in this section forms a protective layer with a polyurea resin coating, the thickness of the protective layer is compared with the case where a protective layer is formed by attaching another member to the ground element body. Becomes smaller. For this reason, even when a polyurea resin coating film is formed on almost the entire area of the surface of the ground element body, the change in the size of the ground element body is slight. The impact resistance and water resistance of the ground unit main body are improved with little influence on the accuracy of the installation position of the ground unit tester with respect to the ground unit main body. Furthermore, because it is a configuration in which a coating film of polyurea resin is formed on the surface of the ground unit body, once the coating film is formed, compared to a configuration in which another member is mounted on the surface of the ground unit body, It is not necessary to attach or remove the protective layer, and the ground element body is easy to handle.
Note that the ATS ground element described in this section is not limited to the ATS ground element in which the ground element body in which the polyurea resin coating film is previously formed is installed, but also from the existing ATS ground element. If the main body can be temporarily removed, an existing ATS ground element in which a polyurea resin coating film is formed on the removed ground element body may be included.
Furthermore, the ATS ground element described in this section is such that the polyurea resin coating film is provided on the coil center mark and the guide protrusion so as to confirm the protruding state of the coil center mark and the guide protrusion. . As a result, the impact caused by the collision of snowfall or the like is suppressed without affecting the confirmation of the center position of the coil built in the ground unit main body and the installation of the ground unit tester on the ground unit main body.

(4) In the above item (3), a bolt insertion hole through which a bolt is inserted when the ground unit main body is attached to the installation board is provided in the ground unit main body, and the polyurea resin coating film However, the ATS ground element provided in the area | region except the inner peripheral surface and peripheral part vicinity of the said bolt penetration hole of the surface of the said ground element main body (Claim 3).
In the ATS ground element described in this section, at least the inner peripheral surface and the vicinity of the peripheral edge of the bolt insertion hole provided in the ground element main body are excluded from the surface region of the ground element main body forming the polyurea resin coating film. Is. That is, a bolt for attaching the ground element main body to the installation board is inserted into the bolt insertion hole of the ground element main body, and the head of the bolt for fixing the ground element main body or the periphery of the bolt insertion hole or A nut or washer, a collar or the like for providing a gap between the ground unit main body and the installation board come into contact. For this reason, by excluding the inner peripheral surface and the peripheral edge of the bolt insertion hole where these members are in direct contact from the coating area of the polyurea resin, the influence of the coating film thickness, which was slightly less than the original, is completely eliminated. Thus, the mounting accuracy of the ground unit main body with respect to the installation board, and hence the accuracy of the installation position of the ground unit main body, are ensured in the same manner as when the polyurea resin coating film is not provided.

(5) In the above item (2), the protective layer is a rubber cover attached to the ground element body, and the rubber cover is cut away so as to avoid the coil center mark and the guide protrusion. ATS ground unit (Claim 4).
In the ATS ground element described in this section, a rubber cover is attached as a protective layer to at least a partial region of the surface of the ground element body. That is, by attaching a rubber cover to an arbitrary surface area of the ground element that is likely to collide with snowfall, the impact when impacted by snowfall is absorbed by the elasticity of the rubber, and the ATS ground Damage to the child is prevented. In addition, since the ATS ground element described in this section has a rubber cover attached to an arbitrary surface area of the ground element body, it is molded in advance to cover the arbitrary surface area of the ground element body. If a rubber cover is used, the rubber cover is quickly mounted, and the number of mounting steps is reduced. Moreover, since it has a simple configuration in which a rubber cover is mounted on the ground unit body, the rubber is not only applied to the installed ground unit body but also the ATS ground unit in which the rubber cover is mounted on the ground unit body when newly installed. Even an existing ATS ground element fitted with a cover made will be included in the ATS ground element described in this section.
Further, the ATS ground element described in this section is provided with a notch in the rubber cover so as to avoid the coil center mark and the guide protrusion provided on the upper surface of the ground element body. The impact caused by a collision such as falling snow is suppressed without affecting the confirmation of the center position of the coil built in the main body and the installation of the ground unit tester on the ground unit body. When measuring the installation height of the ground unit, if the measurement gauge ruler is in contact with the coil center mark, the rubber cover will be cut out in consideration of the width of this ruler. It is preferable not to affect the measurement of the installation height of the main body.

(6) In the above item (5), the rubber cover is composed of two long portions having an L-shaped cross section, and the two long portions are on both sides of the ground element main body in the rail extending direction. An ATS ground unit attached to two surface regions from each of the surfaces to a part of the upper surface (Claim 5).
The ATS ground element described in this section has two surfaces of the substantially rectangular ground element body in a plan view in a state of being installed along the rail from two side surfaces in the rail extending direction to a part of the upper surface. Two long portions having an L-shaped cross section of the rubber cover are attached to the region. That is, since the side surface and the upper surface of the ground unit main body are substantially orthogonal, the two surface regions from the side surface to the upper surface of the ground unit main body described above are appropriately covered with two long rubber covers having an L-shaped cross section. It will be. Furthermore, the two surface regions of the above-described ground element main body are considered to be regions where snowfall from the train is particularly likely to collide in consideration of the traveling direction of the train traveling on the rail. For this reason, by attaching the rubber cover only to such a surface region, the ATS ground element is sufficiently prevented from being damaged while suppressing the material cost of the rubber cover.

(7) The ATS ground unit, wherein the rubber cover is attached to the ground unit body by a double-sided tape and a binding band in the above items (5) and (6).
The ATS ground unit described in this section has a rubber cover that is strong because two long portions of the rubber cover are attached to two surface areas of the ground unit body by a double-sided tape and a binding band. The rubber cover is prevented from falling off from the ground unit main body.

  Since the present invention is configured as described above, it is possible to prevent the ATS ground element from being damaged due to snowfall or the like.

It is the top view and front view which show typically the ATS ground unit concerning the 1st Embodiment of this invention. FIG. 3 is a three-side view showing a ground unit body of the ATS ground unit of FIG. 1. FIG. 3 is a three-sided view of the ground element main body showing a masking portion when the ground element main body of FIG. 2 is coated with polyurea resin. It is the top view and front view which show typically the ATS ground unit concerning the 2nd Embodiment of this invention. FIG. 5 is a three-side view of one rubber cover shown in FIG. 4. FIG. 5 is a three-side view of the other rubber cover shown in FIG. 4. It is the top view which shows the conventional ATS ground unit typically, and the front view partially shown with the cross section.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. Here, parts that are the same as or equivalent to those of the prior art are denoted by the same reference numerals, and detailed description thereof is omitted.
As shown in FIG. 1, the ATS ground unit 10 according to the first embodiment of the present invention includes a ground plane main body 20 having a substantially rectangular plane, and an installation for installing the ground unit main body 20 along the rail R. And substrate 40 for use. The ATS ground unit 10 is substantially the same as the ATS ground unit 100 except that the ground unit body 20 is different from the ground unit body 102 of FIG. 7 as compared with the conventional ATS ground unit 100 shown in FIG. have.

  When the configuration of the ground unit main body 20 is specifically confirmed, as shown in FIG. 2, the ground unit main body 20 is, for example, a resin case with a coil (not shown) or the like, similar to the ground unit main body 102 of FIG. Is included, and a chamber portion 36 that protrudes downward from the lower surface of the plate portion 22 is included. On the upper surface 20a of the ground unit main body 20, coil center marks 28A and 28B indicating the center position of the built-in coil in the left-right direction in FIG. 2A and the ground unit tester used for testing the ATS ground unit 10 are set to the installation position. And guide projections 30A to 30C for guiding and a nameplate 32 are provided. The ground element main body 20 is provided with four bolt insertion holes 24 through which bolts 70 (see FIG. 1) are inserted when the ground element main body 20 is attached to the installation board 40. A hole 24 is drilled from the bottom surface of the concave portion 22 a of the plate-like portion 22 to the lower surface of the plate-like portion 22, and the remaining two bolt insertion holes 24 extend from the upper surface 20 a of the ground element body 20 to the countersink portion 26. The bottom surface of the plate-like portion 22 is drilled. Further, the plate-like portion 22 of the ground unit main body 20 is provided with four drain holes 34 penetrating from the bottom surface of the concave portion 22 a of the plate-like portion 22 to the lower surface of the plate-like portion 22. A cable 38 for power supply or the like is connected.

  In addition, the ground element body 20 of the ATS ground element 10 according to the first embodiment of the present invention has a polyurea resin coating 52 (colored in FIGS. 1 and 2) as a protective layer 50 on a part of the surface. Is formed). In the example of FIG. 2, the coating film 52 of the polyurea resin includes the vicinity of the inner peripheral surface 24 a and the peripheral edge portion 24 b of the four bolt insertion holes 24, the nameplate 32, and the chamber portion 36 among the surface of the ground element body 20. It is provided in an area excluding the connection portion of the cable 38. In the case of forming such a polyurea resin coating film 52, for example, the areas shown by hatching in FIG. 3 (in the vicinity of the inner peripheral surface 24a and the peripheral portion 24b of the four bolt insertion holes 24, the nameplate 32, the chamber portion 36). In this state, the polyurea resin may be sprayed or applied to the entire surface of the ground element main body 20 in a state where the cable connecting portion and the cable 38) are masked. At this time, the cable 38 may be removed from the chamber portion 36 and the vicinity of the cable connecting portion of the chamber portion 36 may be masked. In the example of FIG. 2, a polyurea resin coating 52 is also formed on the inner peripheral surface of the counterbore 26 and the inner peripheral surface of the drain hole 34.

  Further, the film thickness of the polyurea resin coating film 52 is not limited to this, for example, but if the film thickness is about 1 to 5 mm, the impact resistance is sufficient to sufficiently protect the ground element body 20. Has been confirmed to be obtained. The film thickness of the polyurea resin coating film 52 may be constant over the entire surface. For example, in the surface area of the ground unit main body 20, snow fall from a train is considered to be particularly likely to collide. The film thickness of the polyurea resin coating film 52 to be formed is made larger than the film thickness of the polyurea resin coating film 52 to be formed in other areas, and the film thickness of the polyurea resin coating film 52 is changed as necessary. You may let them.

  Now, referring to FIG. 1 again, the installation board 40 is positioned and fixed with respect to the rail R by fixing members 80 and 82, and the ground element body 20 is attached to the upper surface side thereof. . In the ground element main body 20, the bolt 70 is inserted into each of the four bolt insertion holes 24 provided in the plate-like portion 22 from the installation board 40 side in the example of FIG. 40 is fixed. Therefore, the shaft portion of the bolt 70 is in contact with or close to the inner peripheral surface 24a (see FIG. 2) of the bolt insertion hole 24, and the bolt insertion hole 24 has a recess 22a side or a countersink portion 26 side. In the vicinity of the peripheral edge 24b, a nut 72 or a washer disposed between the nut 72 and the peripheral edge 24b is in contact. On the other hand, a space is provided between the plate-like portion 22 and the installation substrate 40 at a position directly below the four bolt insertion holes 24 between the plate-like portion 22 of the ground element main body 20 and the installation substrate 40. For this purpose, an annular collar 74, a flat washer 76, and a rubber pad 78 are installed, and a bolt 70 is inserted into the center hole thereof. Therefore, the collar 74 is in contact with the vicinity of the peripheral edge 24b (see FIG. 2) on the lower surface side of the plate-like portion 22 of the bolt insertion hole 24.

  In addition, the right end of the installation board 40 in the drawing is divided into two forks as in the installation board 40 shown in FIG. 7, and a U-shaped recess 40a in plan view is formed between them. Is provided. The ground element body 20 has a chamber part 36 that protrudes downward from the plate-like part 22 so that the upper surface 20a of the ground element body 20 is located at a predetermined distance H in the height direction from the upper end of the rail R. The positioning substrate 40 is positioned and fixed so as to be disposed in the recess 40 a of the installation substrate 40. The predetermined distance H in the height direction is, for example, 70 mm in the example of FIG. 1, and a tolerance of ± 10 mm is provided. For this reason, when the film thickness of the coating film 52 of the polyurea resin is, for example, 1 to 5 mm, the installation accuracy of the ground unit main body 20 is not affected at all. Even if the polyurea resin coating 52 is formed in the vicinity of the inner peripheral surface 24a and the peripheral edge 24b of the four bolt insertion holes 24 provided in the ground child body 20, the ground child body 20 The installation position is within a tolerance of a predetermined distance H.

  Now, according to the first embodiment of the present invention configured as described above, the following operational effects can be obtained. That is, the ATS ground unit 10 according to the first embodiment of the present invention includes a ground unit main body 20 and an installation board 40 as shown in FIG. The ground base body 20 is installed along the rail R at a position suitable for communication with the vehicle top using the installation board 40. As shown in FIG. 2, the ground unit body 20 is provided with a protective layer 50 in at least a part of the surface. The region where the protective layer 50 is provided is arbitrarily set in consideration of the shape, size, installation position, and the like of the ground unit main body 20. That is, since it is installed at a position where it can communicate well with the train upper part of the train, a protective layer 50 is provided in an arbitrary area with respect to the ground child body 20 which is highly likely to collide with snowfall from the train. Therefore, if the protective layer 50 is provided in an area where snowfall or the like is likely to collide, the impact of the snowfall or the like on the ground child body 20 can be suppressed. Thereby, it becomes possible to prevent the ATS ground element 10 from being damaged due to snowfall or the like.

  The ATS ground unit 10 according to the first embodiment of the present invention is provided with a polyurea resin coating film 52 as a protective layer 50 in at least a part of the surface of the ground unit body 20. Here, the polyurea resin is a compound mainly composed of urea bonds formed by a chemical reaction between isocyanate and amino group, and has a fast curing time, impact resistance, water resistance, chemical resistance, heat resistance, durability. It has the characteristic that it is excellent in property, adhesiveness, etc. For this reason, since the coating film 52 of polyurea resin excellent in impact resistance is formed, the impact of collision such as snowfall can be effectively suppressed by the coating film 52 of the polyurea resin. Can be more reliably prevented. Furthermore, since the polyurea resin is also excellent in water resistance, durability, and the like, it is possible to improve the water resistance, durability, and the like of the ground element main body 20 on which the polyurea resin coating film 52 is formed.

Furthermore, since the ATS ground element 10 according to the first embodiment of the present invention forms the protective layer 50 with the polyurea resin coating film 52, a separate member is attached to the ground element body 20 to form the protective layer 50. Compared with the case where it does, the thickness of the protective layer 50 becomes small. For this reason, even when the polyurea resin coating film 52 is formed on the substantially entire region of the surface of the ground child body 20, the size of the ground child body 20 is little changed, and the position of the ground child body 20 itself is set. The impact resistance and water resistance of the ground unit main body 20 can be improved without substantially affecting the accuracy of the above and the accuracy of the installation position of the ground unit tester with respect to the ground unit main body 20. Furthermore, since the polyurea coating film 52 is formed on the surface of the ground unit body 20, once the coating film is formed, it is compared with a configuration in which another member is mounted on the surface of the ground unit body 20. Thus, it is not necessary to attach or detach the protective layer 50, and the ground child body 20 can be easily handled.
The ATS ground unit 10 according to the first embodiment of the present invention is not limited to the ATS ground unit in which the ground unit main body 20 on which the polyurea resin coating film 52 is previously formed is installed and constructed. If the ground unit main body 20 can be temporarily removed from the existing ATS ground unit, the existing ATS ground unit having a polyurea resin coating film 52 formed on the removed ground unit main body 20 can be included. is there.

  The ATS ground unit 10 according to the first embodiment of the present invention is provided in the ground unit body 20 in the example of FIG. 2 from the surface region of the ground unit body 20 that forms the polyurea resin coating film 52. Further, the vicinity of the inner peripheral surface 24a and the peripheral edge portion 24b of the four bolt insertion holes 24, the nameplate 32, and the vicinity of the cable 38 connection portion of the chamber portion 36 are excluded. That is, as can be seen in FIG. 1, a bolt 70 for attaching the ground element body 20 to the installation board 40 is inserted into the bolt insertion hole 24 of the ground element body 20, and the peripheral edge 24 b of the bolt insertion hole 24 is inserted. Are in contact with a nut 72 or a washer for fixing the ground element main body 20 and a collar 74 for providing a space between the ground element main body 20 and the installation board 40. For this reason, by removing the vicinity of the inner peripheral surface 24a and the peripheral edge portion 24b of the bolt insertion hole 24 with which these members are in direct contact with each other from the coating range of the polyurea resin, the thickness of the coating film 52 that was slightly smaller than the original is obtained. The installation accuracy of the ground child body 20 with respect to the installation board 40, and the installation position of the ground child body 20 (for example, the height from the upper end of the rail R to the upper surface 20a of the ground child body 20) The accuracy of the installation position such that the distance in the vertical direction is the predetermined distance H) can be ensured equivalent to the case where the polyurea coating film 52 is not provided.

  Next, an ATS ground unit 10 'according to a second embodiment of the present invention will be described with reference to FIGS. 4 to 6, the same or corresponding parts as those of the ATS ground unit 10 according to the first embodiment of the present invention or the conventional ATS ground unit 100 shown in FIG. It is attached. Note that only the difference between the ATS ground unit 10 'according to the first embodiment of the present invention and the ATS ground unit 10' according to the second embodiment of the present invention will be described. The description of the configuration and operation of the same parts as those of the ATS ground unit 10 according to the first embodiment will be omitted.

  As shown in FIG. 4, the ATS ground unit 10 ′ according to the second embodiment of the present invention has a protection provided on the surface of the ground unit main body 20 ′ in comparison with the ATS ground unit 10 shown in FIG. As the layer 50, rubber covers 56 and 58 are attached instead of the polyurea resin coating film 52. More specifically, the rubber cover 56 is attached to a region of the surface of the ground element main body 20 ′ from the side surface 20b on the upper side of FIG. 4A of the ground element main body 20 ′ to a part of the upper surface 20a. The rubber cover 58 is attached to a region extending from the lower side surface 20c of FIG. 4A to a part of the upper surface 20a. For this reason, as can be confirmed in FIGS. 5C and 6C, the rubber covers 56 and 58 both have an L-shaped cross section in the longitudinal direction.

  Each of the rubber covers 56 and 58 is fixed to the ground unit main body 20 ′ by a double-sided tape attached to two surfaces that come into contact with the ground unit main body 20 ′, and further, by three binding bands 60, It is bound and fixed to the ground element body 20 ′ and the installation board 40. In the example of FIG. 4, the binding band 60 passes through the lower side of the installation board 40 and is bound. However, the binding band 60 is passed between the ground unit body 20 ′ and the installation board 40. The rubber covers 56 and 58 may be fixed only to the ground element main body 20 ′ by binding.

  As can be seen in FIGS. 4 and 5, the rubber cover 56 has a coil center mark 28A and a guide protrusion 30A provided on the upper surface 20a of the ground element main body 20 ′ in a state of being attached to the ground element main body 20 ′. , 30B, and notches 56a to 56d are formed so as to avoid the counterbore 26. Specifically, the notch 56a corresponds to the guide protrusion 30A, the notch 56b corresponds to the coil center mark 28A, the notch 56c corresponds to the guide protrusion 30B, and the notch 56d corresponds to the counterbore 26. 4 and 6, the rubber cover 58 has a notch 58a for avoiding the coil center mark 28B and the guide protrusion 30C, and a notch 58b for avoiding the countersink 26. As shown in FIG. Is formed.

  Here, the rubber covers 56 and 58 are formed by, for example, extrusion molding. Examples of rubber used for the rubber covers 56 and 58 include chloroprene rubber. Further, in the examples of FIGS. 4 to 6, the thickness of the rubber covers 56 and 58 is about 5 mm, but considering the assumed impact force such as snowfall, the manufacturing cost of the rubber covers 56 and 58, and the like. Other thick rubber covers 56 and 58 may be used. In the example of FIG. 4, the ground element main body 20 ′ does not take into account the thickness of the rubber covers 56, 58, and the upper surface 20 a of the ground element main body 20 ′ is predetermined in the height direction from the upper end of the rail R. It is positioned and fixed with respect to the installation substrate 40 so as to be located at a distance H (for example, 70 mm ± 10 mm).

  According to the second embodiment of the present invention configured as described above, the following operational effects can be obtained. That is, as shown in FIG. 4, the ATS ground unit 10 ′ according to the second embodiment of the present invention has a rubber cover as a protective layer 50 in at least a part of the surface of the ground unit body 20 ′. 56 and 58 are attached. That is, by attaching rubber covers 56 and 58 to an arbitrary surface region of the ground element main body 20 ′ that is considered to be likely to collide with snowfall or the like, the impact when it is collided with snowfall or the like is caused by the elasticity of the rubber. Can be absorbed, and damage to the ATS ground unit 10 'can be prevented. In addition, since the ATS ground unit 10 'has rubber covers 56 and 58 attached to any surface region of the ground unit main body 20', it covers any surface region of the ground unit main body 20 'in advance. If the rubber covers 56 and 58 formed into a shape are used, the rubber covers 56 and 58 can be quickly mounted, and the number of mounting work steps can be reduced. In addition, since the rubber covers 56 and 58 are mounted on the ground unit main body 20 ′, not only the ATS ground unit in which the rubber covers 56 and 58 are mounted on the ground unit main body 20 ′ when newly installed, Even the existing ATS ground unit in which the rubber covers 56 and 58 are attached to the installed ground unit body 20 'is included in the ATS ground unit 10' according to the second embodiment of the present invention. It will be.

  In addition, the ATS ground element 10 'according to the second embodiment of the present invention includes two ground element bodies 20' having a substantially rectangular shape in plan view in a state of being installed along the rail R, in the two directions in the rail R extending direction. Two long rubber covers 56 and 58 having an L-shaped cross section are attached to two surface regions extending from each of the side surfaces 20b and 20c to a part of the upper surface 20a. That is, since the side surfaces 20b and 20c of the ground child main body 20 ′ are substantially orthogonal to the upper surface 20a, the two surface regions from the side surfaces 20b and 20c of the ground child main body 20 ′ to the upper surface 20a are L-shaped in cross section. The two long rubber covers 56 and 58 are appropriately covered. Furthermore, considering the traveling direction of the train traveling on the rail R, the two surface regions of the above-described ground element main body 20 ′ are considered to be regions where snowfall from the train is particularly likely to collide. For this reason, by attaching the rubber covers 56 and 58 only to such a surface area, it is possible to sufficiently prevent the ATS ground unit 10 'from being damaged while suppressing the material cost of the rubber covers 56 and 58. Can do.

  The ATS ground element 10 'according to the second embodiment of the present invention avoids the coil center marks 28A and 28B and the guide protrusions 30A to 30C provided on the upper surface 20a of the ground element main body 20'. The rubber cover 56 is provided with notches 56a to 56d, and the rubber cover 58 is provided with notches 58a and 58b. As a result, it is possible to suppress the impact caused by a collision such as snowfall without affecting the confirmation of the center position of the coil built in the ground element main body 20 ′ and the installation of the ground element tester with respect to the ground element main body 20 ′. it can. When measuring the installation height of the ground element main body 20 ′ (predetermined distance H shown in FIG. 4), when the ruler of the measurement gauge is brought into contact with the coil center marks 28A and 28B, the width of this ruler is taken into consideration. By providing the rubber covers 56 and 58 with the notches 56b and 58a, it is possible to prevent the installation height of the ground element main body 20 'from being affected.

Furthermore, the ATS ground element 10 'according to the second embodiment of the present invention has long rubber covers 56, 58, which are provided with two surface areas of the ground element body 20' by a double-sided tape and a binding band 60. The rubber covers 56 and 58 are firmly fixed, so that the rubber covers 56 and 58 can be prevented from falling off from the ground element main body 20 ′.
The ATS ground unit 10 ′ according to the second embodiment of the present invention may be any type as long as a rubber cover is attached as a protective layer 50 to any surface region of the ground unit body 20 ′. The shape and configuration of the cover made are not limited to the rubber covers 56 and 58 shown in FIGS. For example, the rubber cover used in the ATS ground element 10 'is L-shaped in cross section, which is attached to the area extending from all the side surfaces of the ground element body 20' to a part of the upper surface in the surface area of the ground element body 20 '. An annular rubber cover may be used.

10, 10 ': ATS ground element, 20, 20': Ground element body, 20a: Upper surface of the ground element body, 20b, 20c: Side surface of the ground element body, 24: Bolt insertion hole, 24a: Inner circumference of the bolt insertion hole Surface, 24b: bolt insertion hole peripheral portion, 28 (28A, 28B): coil center mark, 30 (30A-30C): guide protrusion, 40: installation substrate, 50: protective layer, 52: polyurea resin coating film, 56, 58: Rubber cover, 56a to 56d, 58a, 58b: Notch, 70: Bolt, R: Rail

Claims (5)

An ATS ground element including a ground element body having a substantially rectangular shape in plan view and an installation board for installing the ground element body along the rail,
A protective layer is provided on at least a part of the surface of the ground unit body ;
On the upper surface of the ground unit main body, a convex coil center mark indicating the center position of the coil built in the ground unit main body and a ground unit tester used for testing the ATS ground unit are guided to the installation position. And a guide protrusion for
The ATS ground is characterized in that the protective layer is provided so as not to affect the positional accuracy of the ground unit main body or the ground unit tester defined by using the coil center mark and the guide protrusion. Child. The protective layer is formed of a polyurea resin coating ;
The coating film of the polyurea resin is provided from above the coil center mark and the guide protrusion so as to have a thickness that allows the protruding state of the coil center mark and the guide protrusion to be confirmed . ATS ground child. The ground element body is provided with a bolt insertion hole through which a bolt is inserted when the ground element body is attached to the installation board.
3. The ATS ground according to claim 2, wherein the polyurea resin coating film is provided in a region of the surface of the ground element main body excluding at least the inner peripheral surface of the bolt insertion hole and the vicinity of the peripheral edge portion. Child. The protective layer is, Ri rubber cover der attached to said ground unit body,
2. The ATS ground element according to claim 1 , wherein the rubber cover is provided with a notch so as to avoid the coil center mark and the guide protrusion .   The rubber cover is composed of two long portions having an L-shaped cross section, and the two long portions are formed from each of the both sides of the rail extending direction to a part of the upper surface of the ground unit main body. The ATS ground unit according to claim 4, wherein the ATS ground unit is mounted on two surface regions.