JP3434221B2 - Buried sign sheet - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pipe, a sewer pipe,
It relates to a buried sign sheet that can be buried immediately above an underground buried part of a high-voltage power cable or a low-voltage power cable, etc., and that informs the constructor in advance that the pipes and cable ducts have been buried immediately below during excavation work. is there. 2. Description of the Related Art Conventionally, the above-mentioned buried marker sheet is marked with a letter such as "Caution for water pipe", "Be careful when there is a water pipe below, and ask for witness" so that it appears on the upper surface of the synthetic resin strip sheet. Is printed on a printing area of a fixed length as shown in FIG. 8, a folding area at a certain interval is interposed between the printing areas, and the folding area t shown in FIG. Since the three-layered overlapping portion t 'was formed by folding under the interval region T between t and t (FIG. 4 (a)), the above-mentioned marker character caused a blank space between the printing regions as shown in FIG. When excavating the ground with a backhoe and performing the excavation work on the water pipe or cable, the sign sheet caught on the excavation bucket of the backhoe is pulled upward by the bucket and the folding area is extended by the tractive force, and instead the sign character is changed. It is difficult to see the sign characters because they are separated from each other. It became. [0003] The present invention relates to a buried marker sheet in a state in which a three-layer overlapping portion is formed into a fold at regular intervals, that is, in a state after the three-layer overlapping portion is towed and deployed.
It is an object of the present invention to be able to quickly read a sign character along with a related character or a sign of a layer overlapping portion. [0004] In order to achieve the above object, the present invention displays a sign character in a display area of a fixed length so as to be displayed on the upper surface of a synthetic resin strip sheet. , A folding area at a fixed interval is interposed, a character or a symbol related to the sign character is displayed on an upper surface of the folding area, the folding area is folded on a lower surface of the display area, and the folding area is folded. At this time, the related character or symbol is formed in the folded area so that only the sign character appears on the upper surface, and part of the sign character is folded.
Do not hide in the folded area, and
Is constituted by a buried marker sheet in which related symbols are not shown in the display area . DETAILED DESCRIPTION OF THE INVENTION Synthetic resin (for example, polyethylene)
Signs 2 such as "water pipe" and "under the water pipe" are printed and displayed in a display area T of a certain length on the upper surface of the belt-shaped sheet 1 made of Is provided with a folding area t at a constant interval. [0006] On the upper surface of the folding area t, a character 2 'related to the marker character 2 such as a small "water / under this" or "road /
Print "Water pipe" and "Water pipe" (Fig. 1). Further, in place of the related character 2 ', a related symbol such as a horizontal line "-" or a water figure is printed and displayed in the folding area t. The folding area t is folded under the display area T so that a part of the sign character 2 is not hidden in the folded folding area t, and the related character 2 'or related character The symbol is prevented from appearing in the display area T (FIG. 2 shows the state). The display is performed by printing on the upper surface (the lower surface in FIG. 3 but used upside down in FIG. 3) of the stretched band-like sheet 1 (FIGS. 1 and 3) by a printing machine p.
As shown in Fig. 7, it is possible to print on the lower surface of the transparent laminate 1 "on the upper surface of the band-like sheet 1 made of the synthetic resin cloth 1 'so that the sign characters 2 appear on the upper surface of the laminated band-like sheet 1. As shown in FIG. 2, the folded area t is folded to the lower surface of the display area T and held by inserting the heating rod 5 shown in FIG. This is buried just above the buried pipe 3 as shown in Fig. 9. When excavating from the ground with the backhoe 4, the strip-shaped sheet 1 shown in Fig. 2 first appears, and the tip of the club 4 'is shown in Fig. 1 at the tip. As described above, the driver or the work manager of the backhoe 4 can read the related character 2 ′ or the symbol displayed on the folding area t together with the sign character 2 by extending the folding area t.
After knowing that there is a buried pipe 3, a buried cable, etc. under that, the backhoe 4 can be carefully operated to expose the buried pipe 3, etc. Reference numeral 6 in the figure denotes a reciprocating comb-like plate, 7 denotes an elevating cylinder, 8 denotes an elevating press, which raises and lowers the heating rod 5, reciprocates the comb-like plate 6, and elevates the elevating cylinder 7 and the press 8. Is controlled by the control device in accordance with the moving speed of the belt-shaped sheet 1, and the space between the boundaries 9 between the display area T and the folding area t is folded from the center line c. In FIG. 3, 10 is a dryer, 11 is a laminator, and 12 is a slitter cutting line. According to the present invention, the above-mentioned strip-shaped sheet buried along the buried pipe and the buried cable can be used to remove the earth and sand from the ground by a digger such as a backhoe. With the tip blade edge, the sheet is opened in the foldable area, and the display characters and the related characters or symbols displayed in the display area and the foldable characters are both exposed. The subsequent excavation can be performed quickly and carefully, and damage to the buried object can be sufficiently prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a stretched state of a belt-shaped sheet of the present invention. FIG. 2 is a plan view showing a state where a folding area is folded. FIG. 3 is a side view of a printing state. FIG. 4A is a side view of a folded state. (B) is a plan view of the folded state of the belt-shaped sheet in (a). FIG. 5 is a partially enlarged plan view of FIG. FIG. 6 is a plan view of another embodiment of FIG. 2; FIG. 7 is a side view of a laminate sheet in a state where a lower surface is printed. FIG. 8 is a plan view of a conventional belt-shaped sheet. FIG. 9 is a vertical cross-sectional side view of the embedded state of the belt-shaped sheet. [Explanation of Signs] 1 Synthetic resin strip sheet 2 Marker character 2 'Related character T Display area t Folding area

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Claims (1)

(57) [Claims 1] A sign character is displayed in a display area of a fixed length so as to be displayed on the upper surface of the synthetic resin strip-like sheet, and a folding area at a certain interval is provided between the display areas. The upper part of the folding area displays a character or symbol related to the marker character, the folding area is folded on the lower surface of the display area, and at the time of folding, the related character or symbol is displayed. one in the folded folding region formed so as to appear on the upper surface only label character indicator character
Parts are not hidden in the folded area, and
A buried sign sheet that prevents characters or related symbols from appearing in the display area .