JP6126021B2 - PC sleeper - Google Patents

Description

  The present invention relates to a PC sleeper, and more particularly, to a computer equipped with a display unit that displays predetermined contents such as the year of manufacture of the PC sleeper.

  In recent years, as shown in Patent Document 1, PC sleepers that are made of wooden to prestressed concrete play a role in sleepers that support rails on which trains run. PC sleepers are made of prestressed concrete, so they are resistant to repeated train loads and are not easily affected by the natural environment such as the weather, so they have superior life span compared to wooden sleepers. Has features.

  In the Japanese Industrial Standard (JIS), it is obliged to display predetermined contents such as the year of manufacture at an easy-to-see position near the end of the upper surface of the PC sleeper (the surface on which the rail is placed). That is, in the section “11. Display of JIS E 1201-1990”, an easy-to-see position near the upper edge of the sleeper includes (1) a kind symbol, (2) a manufacturer name or its abbreviation, and (3) It is stipulated that the abbreviation of the year of manufacture (the last two digits of the year) must be stamped. The display information stamped on the upper surface of the PC sleeper is used to investigate the cause when the initial deformation of the PC sleeper occurs.

  The marking on the upper surface of a PC sleeper is created by embedding a convex plate printed with a predetermined content such as the year of manufacture in the formwork at the time of sleeper manufacture, and placing concrete in the formwork in that state. It has been broken. For this reason, a predetermined concave content generated corresponding to the convex plate is engraved on the upper surface of the PC sleeper.

JP 2006-214219 A

  However, the conventional PC sleeper has a drawback in that display information attached to the upper surface of the sleeper cannot be determined due to weathering that progresses over time. In other words, the conventional PC sleeper engraving was effective in managing the initial manufacturing history of PC sleepers, but the PC sleepers with the passage of time due to external effects such as rain wind, contact with ballast, collisions, or sand dust. There was a drawback that the surface of the plate was weathered and the contents of the stamp could not be identified. In particular, PC sleepers have been introduced since the 1950s, and there are some that are over 50 years old. However, in such a large PC sleeper, weathering is remarkable and the contents of the stamp can be distinguished. It was difficult.

  Moreover, the deformation of the PC sleeper may occur not only in the initial stage immediately after the production but also with the passage of time such as salt damage, frost damage and alkali aggregate reaction. These deformations may be attributed not only to the environmental conditions in which the rails are laid, but also to the composition and material of the PC sleeper material used during manufacture. In order to investigate the cause of such deformation, it is indispensable to trace the manufacturer of the PC sleeper and investigate the composition and material of the material selected by the manufacturer. However, if the contents of the markings attached to the PC sleepers cannot be identified, there is a risk that the investigation of the cause of the occurrence of the deformation may be hindered.

  Accordingly, the present invention has been made to solve the above-described problems, and provides a PC sleeper that can prevent the display of the stamp from being indistinguishable by providing a display that is unlikely to be weathered over time. It is intended to provide.

  In order to achieve the above object, the PC sleeper according to the present invention is a PC sleeper made of prestressed concrete having a display unit for displaying predetermined information of the sleeper body, and the display unit is different in color. It is composed of a plurality of rod-shaped bodies, and these rod-shaped bodies are arranged side by side in correspondence with predetermined display information, and the end faces of these arranged rod-shaped bodies are arranged on the sleeper body so that they appear on the surface of the sleeper body. It is characterized by being buried.

  Since the PC sleeper according to the above configuration is generated by a plurality of rod-shaped bodies having different colors, the color arrangement can be confirmed even after several decades have passed since the manufacture of the sleeper body. In other words, the color arrangement can be confirmed without changing until the life of the sleeper body is exhausted, and the display information on the display unit can be confirmed regardless of aging. For this reason, there is no possibility that the display portion will be weathered with the passage of time, and it is possible to prevent the display of the stamp from being determined.

  In the PC sleeper according to the present invention, the PC sleeper according to the present invention is characterized in that the rod-shaped body is made of color mortar.

  Since the PC sleeper according to the above configuration is made of color mortar, it can be easily and inexpensively manufactured, and has excellent affinity with the concrete of the sleeper body, adhesion and durability. can do.

  In the PC sleeper according to the above configuration, it is preferable that the rod-shaped body is a rectangular parallelepiped having a predetermined length.

  Since the PC sleeper which concerns on the said structure is a rod-shaped body which consists of a rectangular parallelepiped, it can be stably arranged in parallel with respect to the adjacent rod-shaped body.

  Moreover, in the PC sleeper according to the present invention, it is preferable that the surface of the sleeper main body where the end surfaces of the bar-like bodies arranged side by side are the surfaces that support the rail on which the train travels.

  The PC sleeper according to the above configuration can easily recognize the end surface of the rod-shaped body because the end surface of the bar-shaped body arranged side by side appears on the upper surface supporting the rail.

  According to the PC sleeper of the present invention, it is possible to prevent the marking display from being determined by providing a display that is not likely to weather with age. Therefore, the PC sleeper according to the present invention can contribute not only to the initial stage of deformation immediately after production but also to investigation of the cause of the deformation that occurs with aging such as salt damage.

It is a top view of PC sleeper by embodiment of this invention. It is a front view of PC sleeper shown in FIG. (A) is a perspective view of the 1st display part used for PC sleeper, (b) is a perspective view of a 2nd display part. (A)-(d) is a display example of the 1st display part of PC sleeper. (A), (b) is a display example of the 2nd display part of PC sleeper.

  Hereinafter, embodiments of the PC sleeper according to the present invention will be described with reference to the drawings. The present invention is not limited to this embodiment, and constituent elements in the following embodiments include those that can be easily replaced by those skilled in the art or those that are substantially the same. .

  As shown in FIGS. 1 and 2, the PC sleeper 1 according to the embodiment of the present invention is provided on one side of the surface of the sleeper body 2 that supports the rails 3 a and 3 b on which the train travels (the left side in the illustrated example). The first display unit 10 is provided at an easy-to-see position near the end of (), and the second display unit 20 is provided at an easy-to-see position near the other end of the surface.

  The sleeper main body 2 is not shown in the figure, like the well-known PC sleeper main body, but a PC steel material made of PC steel wire or the like is embedded therein. The sleeper body 2 is made of concrete, like the well-known PC sleeper body. Therefore, the sleeper body 2 has excellent features such as being able to cope with train loads that act repeatedly, being less susceptible to the natural environment such as weather, and extending its life compared to wooden sleepers. doing.

  The first display unit 10 is in an easily visible position near one end of the surface of the sleeper body 2 that supports the rails 3a and 3b on which the train travels, and one end side appears on the surface of the sleeper body 2. It is embedded in the sleeper body 2. That is, these display units 10 and 20 are provided in the same place as a known PC sleeper. Since the “surface” of the sleeper body 2 that supports the rails 3a and 3b on which the train travels faces upward with respect to the ground when the sleeper body 2 is laid, it will be described below as “upper surface”.

  As shown in FIG. 3A, the first display unit 10 is configured by juxtaposing rod-shaped bodies 11 to 14 made of four rectangular parallelepipeds. In this juxtaposition, since the rod-shaped bodies 11 to 14 are formed of a rectangular parallelepiped, they can be stably generated in a single bundle shape. And each rod-shaped body 11-14 is produced | generated with the color mortar which exhibited the same shape. The rectangular parallelepiped shape of each rod-shaped body 11-14 has a square end surface located on the upper surface side of the sleeper body 2, and the length of the portion embedded in the sleeper body 2 (length dimension in the vertical direction) is , It is determined to be a little longer than the length of one side of the square. The specific shape is determined so that the cross-sectional defect of the sleeper body 2 can be minimized even when the rod-shaped bodies 11 to 14 made of four rectangular parallelepipeds are juxtaposed and embedded in the sleeper body 2. . As an example of the dimensions of each rod-shaped body 11 to 14, the length of one side of the square of the end face is 20 mm, and the length of the embedded portion is 30 mm.

  Each rod-shaped body 11-14 is produced | generated so that a color may mutually differ. In the illustrated example, the rod-shaped body 11 is generated in black, the rod-shaped body 12 in yellow, the rod-shaped body 13 in green, and the rod-shaped body 14 in red. 3 to 5, (B) represents black, (Y) represents yellow, (G) represents green, and (R) represents red.

  The arrangement of the rods 11 to 14 made of rectangular parallelepiped color mortar is determined by the display information of the first display unit 10. In the illustrated example, the black rod-shaped body 11 will be mainly described. The black rod-shaped body 11 has a yellow rod-shaped body 12 on the right side, the black rod-shaped body 11 has a green rod-shaped body 13 below, and the black rod-shaped body 11 has a black color. A red rod-like body 14 is disposed on the lower right side of the rod-like body 11 (below the yellow rod-like body 12 and on the right side of the green rod-like body 13). These rod-shaped bodies 11 to 14 are bound and embedded in the sleeper body 2. The contents indicated by the color arrangement will be described later.

  Each rod-shaped body 11-14 which consists of a rectangular parallelepiped-shaped color mortar can be easily manufactured in the way of making a well-known color cement mortar. That is, each rod-like body 11-14 produces | generates a slurry by adding water to the material which mixed cement, sand, and the inorganic pigment of the predetermined color, knead | mixing, and the produced | generated slurry is made into the external shape of each rod-like body 11-14. It can be manufactured by being put into a mold having a corresponding space and cured. Each rod-shaped body 21-26 mentioned later is manufactured similarly.

  As shown in FIG. 3B, the second display unit 20 is configured by juxtaposing rod-shaped bodies 21 to 26 made of six rectangular parallelepipeds. That is, the second display unit 20 includes three rod-like bodies 21 to 23 arranged in parallel in the longitudinal direction of the sleeper body 2 and three rod-like bodies arranged in parallel below the rod-like bodies 21 to 23. It is comprised with the bodies 24-24. For convenience of explanation, the rod-shaped bodies 21 to 23 will be described as the upper bar-shaped body 20a, and the rod-shaped bodies 24 to 24 will be described as the lower bar-shaped body 20b.

  The rod-like bodies 21 to 26 constituting the upper rod-like body 20a and the lower rod-like body 20b are generated with color mortar, similarly to the rod-like bodies 11 to 14 of the first display unit 10 described above. The rectangular parallelepiped shape of each rod-shaped body 21 to 26 is such that the end surface located on the upper surface side of the sleeper body 2 is a rectangle, and the length of the portion embedded in the sleeper body 2 is the length of the long side of the rectangle Is determined to be almost the same. The specific shape is determined so that cross-sectional defects of the sleeper body 2 can be minimized even when the rod-like bodies 21 to 26 made of six rectangular parallelepipeds are juxtaposed and embedded in the sleeper body 2. . As an example of the dimensions of the rod-shaped bodies 21 to 26, the length of the short side of the rectangular end face is 20 mm, the length of the long side is 30 mm, and the length of the embedded portion is 30 mm.

  Each of the rod-like bodies 21 to 23 of the upper rod-like body 20a is generated so that the end surface sides thereof have different colors. In the illustrated example, the rod-shaped body 21 is generated in black, the rod-shaped body 22 in yellow, and the rod-shaped body 23 in green. And these rod-shaped bodies 21-23 are arranged in parallel so that the rectangular short side of the adjacent end surface may contact | connect. In this juxtaposition, since the rod-like bodies 21 to 23 are formed of a rectangular parallelepiped, they can be stably generated in one bundle.

  Each of the rod-like bodies 24 to 26 of the lower rod-like body 20b is also generated so that the end surface sides thereof have different colors. In the illustrated example, the rod-shaped body 24 is generated in green, the rod-shaped body 25 is generated in red, and the rod-shaped body 26 is generated in black. And these rod-shaped bodies 21-23 are arranged side by side so that the short side of the rectangle of an adjacent end surface may contact | connect, and further, the upper side of the lower bar-shaped body 20b is arranged in parallel so that the lower side of the upper bar-shaped body 20a may contact | connect. ing. In this juxtaposition, the rod-like bodies 24 to 26 are formed in a rectangular parallelepiped, so that they can be stably produced in one bundle. Moreover, since the parallel arrangement of the upper rod-shaped body 20a composed of the rod-shaped bodies 21 to 23 and the lower rod-shaped body 20b composed of the rod-shaped bodies 24 to 26 is also composed of a rectangular parallelepiped, it can be stably generated as one bundle. .

  The embedment of the first display unit 10 and the second display unit 20 in the sleeper body 2 described above is manufactured integrally with the sleeper body 2 when the sleeper body 2 is manufactured. That is, the embedding of the first display unit 10 and the second display unit 20 in the sleeper body 2 is performed by the rod-shaped bodies 11 to 14 that form the first display unit 10 at a predetermined position of the mold for manufacturing the sleeper body 2 and It arrange | positions by arrange | positioning the rod-shaped bodies 21-26 which form the 2nd display part 20, respectively, and after that, puts concrete into a formwork. In addition, in arranging the rod-like bodies 11 to 14 of the first display unit 10 and the rod-like bodies 21 to 26 of the display unit 20, the rod-like bodies 11 to 14 are made into one block body using an adhesive or the like in advance. You may make it make the rod-shaped bodies 21-26 into one block body using an adhesive agent.

  Below, each display information of the 1st display part 10 and the 2nd display part 20 is demonstrated using FIG.4 and FIG.5.

  The color arrangement of the first display unit 10 shown in FIG. 4A is the same color arrangement as that of the first display unit 10 shown in FIG. 3A, and this color arrangement is the sleeper body. 2 shows the last three digits of the year of manufacture. Further, when the color arrangement is the same as that of the first display unit 10a shown in FIG. 4B, the last three digits of the manufacturing year different from the first display unit 10 can be shown. Thus, since the color arrangement of the first display units 10 and 10a is composed of the four rod-shaped bodies 11 to 14 having different colors, the display type by the combination of the four rod-shaped bodies 11 to 14 is 44 = Since it is 256, 256 types of display are possible, and it is possible to correspond to the manufacturing year of 256 years.

  The first display unit 10b shown in FIG. 4C and the first display unit 10c shown in FIG. 4D show other examples of the first display unit. These first display portions 10b and 10c are composed of four rod-shaped bodies 11 to 14 shown in FIGS. 4A and 4B, whereas the first display portions 10 and 10a are each two pieces. It is composed of rods with different colors.

  The first display unit 10b shown in FIG. 4C has the same shape as one of the four rod-shaped bodies 11 to 14 of the first display units 10 and 10a described above, and the other One has an L shape with the remaining three rods as one. Also in the first display unit 10b, it is possible to correspond to a plurality of manufacturing years by appropriately selecting colors and arrangements.

  The 1st display part 10c shown by FIG.4 (d) united the two rod-shaped bodies 11 and 12 of the four rod-shaped bodies 11-14 of the 1st display parts 10 and 10a which one mentioned above. It has a shape, and the other one has a shape in which the remaining two rod-like bodies 13 and 14 are combined. Also in the first display unit 10c, it is possible to correspond to a plurality of production years by appropriately selecting colors and arrangements.

  FIG. 5A shows a color arrangement of the upper bar 20a of the second display unit 20, and this color arrangement shows the manufacturer of the sleeper body 2. FIG. As described above, the color arrangement of the upper bar-shaped body 20a is composed of the three bar-shaped bodies 21 to 23 having different colors, so the display type by the combination of the three bar-shaped bodies 21 to 23 is 33 = 64. Display of 64 companies is possible. In addition, there are currently 11 manufacturers of PC sleepers.

  FIG. 5B is a color array of the lower bar-shaped body 20 b of the second display unit 20, and this color array indicates the type of the sleeper body 2. Thus, since the color arrangement of the lower bar-shaped body 20b is composed of the three bar-shaped bodies 24-26 having different colors, the display type by the combination of the three bar-shaped bodies 24-26 is 33 = 64. Therefore, 64 types of display are possible. There are currently 17 types of PC sleepers.

  In the PC sleeper 1 having the above-described configuration, a first display unit 10 including four rod-shaped bodies 11 to 14 having different colors is embedded in an easily viewable position near one end of the upper surface of the sleeper body 2. The year of manufacture of the sleeper body 2 is displayed. And the 2nd display part 20 is embed | buried in the legible position vicinity of the other side edge part of the upper surface of the sleeper main body 2, and it is comprised so that the manufacturer and classification of the sleeper main body 2 may be displayed, respectively. Yes. That is, on the upper side of the second display unit 20, an upper bar-shaped body 20a composed of three bar-shaped bodies 21 to 23 having different colors is embedded so that the manufacturer of the sleeper body 2 is displayed. In addition, a lower bar-shaped body 20b composed of three bar-shaped bodies 24 to 26 having different colors is embedded below the upper bar-shaped body 20a so that the type of the sleeper body 2 is displayed. It is configured.

The effect | action of PC sleeper which consists of the said structure is demonstrated based on drawing.
Since the 1st display part 10 and the 2nd display part 20 of the PC sleeper 1 which consist of the said structure are each produced | generated by the rod-shaped bodies 11-14, 21-26 which consist of color mortars, The display information can obtain the same color scheme regardless of the position of the rod-like body as in the so-called Kintarou. Therefore, even if several decades have passed since the manufacture of the sleeper body 2 and the rod-shaped bodies 11 to 14 and 21 to 26 are weathered and shortened together with the sleeper body 2, the display information on both display units 10 and 20 is clear. Can be confirmed. For this reason, the PC sleeper 1 having the above-described configuration includes a display unit that is not likely to be weathered over time, and it is possible to prevent the marking display from being determined.
Moreover, it can contribute not only to the initial stage deformation immediately after production but also to investigation of the cause of the deformation that occurs with the passage of time such as salt damage.

  Moreover, since the first display unit 10 and the second display unit 20 having the above-described configuration are composed of rod-shaped bodies 11 to 14 and 21 to 26 made of color mortar, they can be manufactured at low cost, and the sleeper body 2 It has the feature that it is excellent in affinity, adhesion and durability with the concrete forming. Of course, these display parts 10 and 20 can also be made of other materials such as colored plastic. However, the color mortar described above is preferable in view of the affinity with the concrete forming the sleeper body 2.

  Reading of display information on the first display unit 10 and the second display unit 20 having the above-described configuration can be visually determined by an operator. Of course, the display information of these display units 10 and 20 is read by a portable terminal equipped with a CCD camera, and the read data and the stored data are collated, and the manufacture year and manufacture of the sleeper body 2 are verified. The manufacturer and type can also be determined.

Moreover, since the 1st display part 10 and the 2nd display part 20 which consist of the said structure are each comprised by arranging the rod-shaped bodies 11-14, 21-26 from which a color differs according to predetermined | prescribed display information, the arrangement | sequence of a color Shows the same data array as QR Code (registered trademark). Therefore, since each display part 10 and 20 can have many information, a display part can also be made into one side.
In addition, since the display unit can have a lot of information, the information to be included in the display unit is not only the year of manufacture, manufacturer and type of sleeper body, but also the material, material, blending ratio, etc. Other information can also be included.

  Although the embodiment of the PC sleeper according to the present invention has been described above, the present invention is not limited to the above embodiment, and can be appropriately changed without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 PC sleeper 2 Sleeper main body 3a, 3b Rail 10, 10a, 10b, 10c 1st display part 11-14 Rod-shaped body 20 2nd display part 20a Upper rod-shaped body 20b Lower rod-shaped body 21-26 Rod-shaped body

Claims (4)

A PC sleeper made of prestressed concrete having a display unit for displaying predetermined information of the sleeper body,
The display unit is composed of a plurality of bar-shaped bodies having different colors, the bar-shaped bodies are arranged side by side corresponding to predetermined display information, and the end faces of the bar-shaped bodies arranged side by side are arranged on the surface of the sleeper body. PC sleeper characterized by being embedded in the sleeper body as shown.   The PC sleeper according to claim 1, wherein the rod-shaped body is made of color mortar.   The PC sleeper according to claim 1 or 2, wherein the rod-shaped body is a rectangular parallelepiped having a predetermined length.   4. The PC sleeper according to claim 1, wherein a surface of the sleeper main body on which an end face of the bar-like bodies arranged side by side is a surface that supports a rail on which a train travels. 5. .

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