JP6909031B2 - Synthetic sleeper integrated ground child - Google Patents

Description

The present invention relates to a synthetic sleeper integrated ground element.

Conventionally, there has been known a technique of installing a variable frequency ground element on the ground side and detecting the ground element on the upper side of a vehicle to control train stop and speed (see, for example, Patent Document 1). ).

Japanese Unexamined Patent Publication No. 2011-031816

By the way, the conventional ground element requires a special mounting bracket for its installation, and is inconvenient to handle because it becomes an obstacle during track maintenance work. Therefore, the present invention has been devised for the purpose of providing a completely new ground element that is easy to handle in terms of construction and maintenance.

The first invention for solving the above problems is
Synthetic sleeper part made of synthetic sleeper material and
With a flat plate-shaped variable frequency or resonant ground element that is attached between the left and right rail installation positions on the upper part of the synthetic sleeper and whose length in the rail direction is at least smaller than that of the synthetic sleeper. ,
It is a synthetic sleeper integrated ground element equipped with.

The resonance type described here is an application method of the variable frequency type. While the variable frequency type is a method of changing the oscillation frequency, the resonance type is a method of increasing the amplitude of the resonance frequency among a plurality of frequencies transmitted to the ground element side (for example, a spread spectrum method or a method of increasing the amplitude of the resonance frequency). It refers to a method that is also called a new variation type). In a broad sense, it is considered that the resonance type can be included in the variable frequency type, but it is described as another term just in case because the variable frequency type may be interpreted in a narrow sense.

According to the first invention, a variable frequency type or resonance type ground element having a length along the rail direction at least in the top view and having a size equal to or less than that of the synthetic sleeper is installed at the left and right rail installation positions above the synthetic sleeper. It is possible to realize a ground element integrated with the synthetic sleepers provided between them. According to this, the ground element can be installed on the ground side by installing the synthetic pillow integrated with the ground element. In addition, since the length of the ground element along the rail direction is less than or equal to that of the synthetic sleepers, it is unlikely to become an obstacle at the feet of workers in track maintenance work or the like. In addition, since the ground child and sleepers are integrated, it is possible to reduce the number of equipment points when managing the ground child and sleepers separately, and to save the labor of management. Therefore, it is possible to provide a completely new ground element that is easy to handle in terms of construction and maintenance.

Further, the second invention is the first invention.
The ground element has a built-in substrate portion on which the conductor pattern of the coil for electromagnetically coupling with the electromagnetic wave from the on-board element is printed.
It is a synthetic sleeper integrated ground element.

According to the second invention, the ground element can be made thinner and the whole can be made lighter. Therefore, the ease of handling related to the installation of the synthetic sleeper integrated ground element can be further enhanced. Further, by configuring the coil as a substrate portion by printing a conductor pattern, it is possible to suppress the manufacturing variation of the ground element and realize a high quality and long life ground element.

Further, the third invention is the first or second invention.
The above-ground element has a thickness of 3 cm or less.
It is a synthetic sleeper integrated ground element.

According to the third invention, the thickness of the above-ground element can be set to 3 cm or less.

Further, the fourth invention is the invention of any one of the first to third aspects.
The upper part of the synthetic sleeper portion has a concave shape for attaching the above-ground child.
The boundary between the upper surface of the synthetic sleeper portion and the upper surface of the ground element is configured to have no step.
It is a synthetic sleeper integrated ground element.

According to the fourth invention, by attaching the ground element to the concave portion of the upper part of the synthetic sleeper portion, the boundary between the upper surface of the synthetic sleeper portion and the upper surface of the ground element can be formed in a stepless manner.

Further, the fifth invention is the fifth invention in any one of the first to fourth inventions.
The ground element was attached by being attached to the synthetic sleeper portion.
It is a synthetic sleeper integrated ground element.

According to the fifth invention, a metal fitting or the like for attaching a ground element is not required. As a result, it is possible to reduce the labor of manufacturing the synthetic sleeper integrated ground element and reduce the weight of the synthetic sleeper integrated ground element as a whole.

Further, the sixth invention is the invention of any one of the first to third aspects.
The synthetic sleeper portion has a long base portion and a set of upper surface constituents attached to the upper surfaces of the left end side and the right end side of the base portion.
The ground element is attached by being attached to the upper surface of the substrate portion between the set of upper surface components.
The boundary between the upper surface of the upper surface structure and the upper surface of the ground element is configured to have no step.
It is a synthetic sleeper integrated ground element.

According to the sixth invention, a set of upper surface constituents is attached to both left and right ends of the upper surface of the base portion to prepare a synthetic sleeper portion, and a ground element is placed on the upper surface of the base portion between the upper surface constituents. By attaching it, the boundary between the upper surface of the synthetic sleeper portion and the upper surface of the ground element can be configured in a stepless manner. A synthetic sleeper integrated ground element can be constructed relatively easily without requiring complicated processing.

Further, the seventh invention is the invention according to any one of the first to sixth aspects.
The ground element was designed to have a design life of at least 30 years.
It is a synthetic sleeper integrated ground element.

So-called "synthetic sleepers" made of synthetic sleeper materials have excellent durability and a long replacement life. Therefore, according to the seventh invention, a ground element having a design life of at least 30 years can be attached to a synthetic sleeper portion having a long life to form a synthetic sleeper integrated ground element. According to this, the synthetic sleeper integrated ground element can be used as a sleeper and a ground element without requiring long-term maintenance.

The figure which shows the outline of the orbit where the synthetic sleeper integrated ground element was installed. The figure which shows the structural example of the synthetic sleeper integrated ground element. Another figure showing a configuration example of a synthetic sleeper integrated ground element.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. It should be noted that the embodiments described below do not limit the present invention, and the embodiments to which the present invention can be applied are not limited to the following embodiments. Further, in the description of the drawings, the same parts are designated by the same reference numerals.

FIG. 1 is a perspective view showing an outline of an orbit in which a synthetic sleeper integrated ground element 1 is installed in the present embodiment. The synthetic sleeper integrated ground element 1 of the present embodiment has a prismatic shape having a rectangular or square short axis cross section, and is partially embedded in ballast (crushed stone or gravel) to form a sleeper (synthetic sleeper). used. For example, as shown in FIG. 1, the synthetic sleeper integrated ground element 1 is installed along a track at a predetermined interval, and a pair of rails 3 and 3 are provided at both left and right ends (rail installation positions) on the upper surface. To support. The synthetic sleeper integrated ground element 1 includes a synthetic sleeper portion 11 and a ground element 13, and the ground element 13 is integrally attached to the upper part of the synthetic sleeper portion 11.

2 and 3 are perspective views showing a configuration example of one synthetic sleeper integrated ground element 1. FIG. 2 shows a state in which the synthetic sleeper portion 11 and the ground element 13 are separated, and FIG. 3 shows a state in which the ground element 13 is attached to the synthetic sleeper portion 11.

The ground element 13 is a variable frequency type or resonance type ground element having a flat outer shape, and has a built-in substrate portion 131 on which a conductor pattern of a coil for electromagnetically coupling with an electromagnetic wave from an on-vehicle element is printed. .. For example, in the case of adopting the variable frequency type, the on-board device electromagnetically couples with the ground element 13 when the on-vehicle element provided on the vehicle body approaches the ground element 13, and the resonance frequency of the on-vehicle element becomes high. It detects that the train has passed the installation position of the ground element 13 by utilizing the change. The resonance type is a method for increasing the amplitude of the resonance frequency among a plurality of frequencies transmitted from the on-board element, and is also called, for example, a spread spectrum method or a new variation type. In a broad sense, it is considered that the resonance type can be included in the variable frequency type, but since the variable frequency type is interpreted in a narrow sense, it is used as a different term here just in case.

In addition, although FIG. 1 shows how the synthetic sleeper integrated ground element 1 provided with the ground element 13 is installed side by side, it is not necessary to make all the sleepers the synthetic sleeper integrated ground element 1, for example. Synthetic sleepers integrated ground elements 1 may be installed every predetermined number of sleepers, and other conventional synthetic sleepers or the like may be used. In addition, the resonance frequency of the synthetic sleeper integrated ground element 1 to be arranged is set with the resonance frequency such that the synthetic sleeper integrated ground element 1 is arranged so that a plurality of resonance frequencies circulate in the order along the orbit. The relationship with the synthetic sleeper integrated ground element 1 to be performed can be arbitrarily set.

The ground element 13 may have a configuration in which the resonance frequency can be switched from a plurality of different frequencies, or a plurality of types of ground elements 13 having a fixed resonance frequency may be prepared with different resonance frequencies.

The ground element 13 is designed so that the length (width) W of the outer shell along at least the directions of the rails 3 and 3 is at least the size of the synthetic sleeper portion 11. In the present embodiment, the length W along the directions of the rails 3 and 3 is the same as the specified width W1 which is the width of the synthetic sleeper portion 11 (the width of the base portion 111 and the set of upper surface components 113 and 113). It is specified by the length. Further, the outer shell of the ground element 13 can be formed of the same synthetic sleeper material as the synthetic sleeper portion 11, and the thickness T of the ground element 13 is 3 cm or less.

The synthetic sleeper portion 11 is formed of a synthetic sleeper material made of a resin foam (fiber reinforced resin) reinforced with long glass fibers, and the rails 3 and 3 are installed on the upper left and right rails. Between the positions, there is a recess 12 for attaching the ground element 13. The recess 12 is provided by combining a plate-shaped body of the synthetic sleeper material. That is, the synthetic sleeper portion 11 has a width of the base portion 111 at both left and right ends of the upper surface of the long base portion 111 formed into the specified width W1 and the specified length L1 defined as the size of the sleepers. It has a structure in which a set of short upper surface components 113, 113 having the same (specified width W1) are bonded together.

Specifically, the length L11 of each of the upper surface constituents 113 and 113 is such that the total length when the ground element 13 is arranged between them is the specified length L1 of the synthetic sleeper integrated ground element 1 (that is, the base portion). It is specified to match the length of 111). Further, the thickness T11 of each of the upper surface components 113 and 113 is defined to be the same thickness T as that of the ground element 13. Then, the thickness of the base portion 111 is specified so that the thickness of the portion where the base portion 111 and the upper surface components 113 and 113 overlap is the specified thickness T1 of the pillow.

Therefore, in the synthetic sleeper integrated ground element 1, the upper surface (upper surface) of the synthetic sleeper portion 11 is provided with the ground element 13 attached to the recess 12 between the pair of upper surface components 113 and 113 at the upper portion thereof. The boundary between the upper surfaces of the constituents 113 and 113) and the upper surface of the ground sleepers 13 is formed in a stepless manner. Further, in the present embodiment, similarly, the boundary between the side surface of the synthetic sleeper portion 11 (the side surface of the base portion 111 and the upper surface components 113 and 113) and the side surface of the ground element 13 is configured to have no step. NS.

In the method of manufacturing the synthetic sleeper integrated ground element 1, first, the upper surface constituents 113 and 113 are adhered and fixed to both ends of the upper surface of the base portion 111 with an adhesive, and the upper portion of the synthetic sleeper portion 11 has a concave shape. To make. Subsequently, an adhesive is applied to the recessed portion (recessed portion 12), and the ground element 13 is placed, attached, and fixed.

As described above, according to the synthetic sleeper integrated ground element 1 of the present embodiment, the ground element integrated with the synthetic sleeper can be realized. According to this, it is possible to provide a ground element that is easy to handle in terms of construction and maintenance.

For example, a conventional ground element has been installed on a pillow, a track bed, or the like via a mounting bracket by fixing it to a dedicated mounting bracket with a bolt. On the other hand, by using the synthetic sleeper integrated ground element 1 of the present embodiment as a sleeper (synthetic sleeper), the ground element 13 can be installed in an orbit. Therefore, the installation of the ground element 13 is completed at the same time as the installation of the pillow, the trouble of separately installing the ground element 13 becomes unnecessary, and the installation cost of the ground element 13 can be reduced. Further, even when the existing sleeper is replaced with the synthetic sleeper integrated ground element 1, the size of the synthetic sleeper integrated ground element 1 is the same as that of the existing sleeper, so that the existing sleeper Since the synthetic sleeper integrated ground element 1 can be installed by making the best use of the concave shape of the surrounding ballast as it is, it is possible to reduce the trouble of removing the ballast, rolling compaction, etc. and easily replace it. can.

Further, by configuring the coil in the ground element 13 as the substrate portion 131 by printing the conductor pattern, it is possible to suppress the manufacturing variation of the ground element 13 and realize a high quality and long life ground element. In addition, since the ground element 13 is a sticking type that does not require a mounting bracket when the ground element 13 is installed, it is not necessary to fix the ground element 13 with bolts, the ground element 13 can be made as thin as possible, and the weight can be reduced. In particular, in the present embodiment, the thickness of the ground element 13 can be set to 3 cm or less. Further, since the synthetic sleeper portion itself formed of the synthetic sleeper material is also light, the overall weight can be reduced.

Further, the ground element 13 can have a length (width) W along the directions of the rails 3 and 3 at least having a size of the composite sleeper portion 11 or less. In the present embodiment, a recess 12 having the same size as the ground element 13 is provided in the upper part of the synthetic sleeper portion 11, and the ground element 13 is attached to the recess 12 so that there is no boundary between the synthetic sleeper portion 11 and the ground element 13. It can be configured in a stepped shape. According to this, since there is no unevenness due to the presence of the ground element 13 on the outer surface of the synthetic sleeper integrated ground element 1, it is possible to prevent the worker from tipping over during track maintenance work and ensure safety, and maintenance is possible. It is possible to improve the ease of handling in terms of surface.

Further, the variable frequency type or resonance type ground element has a simple configuration provided with a coil for electromagnetically coupling with the electromagnetic wave from the on-board element, and has a long replacement life because failure is unlikely to occur. In particular, in this embodiment, the ground element 13 is designed to have a design life of at least 30 years. On the other hand, the material for synthetic sleepers forming the synthetic sleeper portion 11 has excellent durability, and its replacement life is as long as several decades or more. Therefore, according to the synthetic sleeper integrated ground element 1 of the present embodiment, a situation occurs in which either the deterioration of the synthetic sleeper portion 11 or the failure of the ground element 13 occurs and the entire ground element needs to be replaced. It is difficult to use and can be used for a long period of time without the need for maintenance.

In addition, by attaching the ground element 13 to the synthetic sleeper unit 11 and integrating them, it is not necessary to manage the sleepers and the ground element separately, and the number of equipment to be managed can be reduced or managed. It is possible to save the trouble of.

1 Synthetic sleeper integrated ground element, 11 Synthetic sleeper part, 111 base part, 113 upper surface structure, 12 recesses, 13 ground element, 131 board part, 3 rails

Claims (6)

Synthetic sleeper part made of synthetic sleeper material and
With a flat plate-shaped variable frequency or resonant ground element that is attached between the left and right rail installation positions on the upper part of the synthetic sleeper and whose length in the rail direction is at least smaller than that of the synthetic sleeper. ,
Equipped with a,
The synthetic sleeper portion has a long base portion and a set of upper surface constituents attached to the upper surface of the base portion at intervals.
The ground element was attached to the upper surface of the substrate portion between the set of upper surface components.
Synthetic sleeper integrated ground child. The ground element has a built-in substrate portion on which the conductor pattern of the coil for electromagnetically coupling with the electromagnetic wave from the on-board element is printed.
The synthetic sleeper integrated ground element according to claim 1. The above-ground element has a thickness of 3 cm or less.
The synthetic sleeper integrated ground element according to claim 1 or 2. The boundary between the upper surface of the upper surface structure and the upper surface of the ground element is configured to have no step.
The synthetic sleeper integrated ground element according to any one of claims 1 to 3. Wherein the ground element is mounted by being attached to an upper surface of the base portion,
The synthetic sleeper integrated ground element according to any one of claims 1 to 4. The upper surface structure is attached on the upper surface of the left side and right side of the base portion mounted in Rukoto,
The synthetic sleeper integrated ground element according to any one of claims 1 to 5.

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