JP3013552U - Identification tool for underground corrugated pipe - Google Patents

Abstract

(57) [Summary] [Purpose] The identification display of communication lines, power lines, other protected objects in pipes, and managers in corrugated pipes is extremely marked on any part of existing corrugated pipes or pipes after completion of piping. Obtain an identification tool that can be easily and stably displayed and will not come off. [Structure] A horizontal width w is set to be a width smaller than one pitch interval W of the corrugations of the pipe wall 1 of the underground buried corrugated pipe P, and a length thereof is a half or more of the outer peripheral diameter of the valley portion 2 of the corrugated pipe. The shape is C-shaped when viewed from the side, and the whole is made of a synthetic resin material having high elasticity.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is attached to an underground buried corrugated pipe that is used by being buried underground such as a water pipe, various fluid transport pipes, and electric wire protection pipes. The present invention relates to an identification tool used for facilitating display and confirmation of.

[0002]

[Prior art]

 Conventionally, these underground buried corrugated pipes are classified into an annular corrugated pipe and a spiral corrugated pipe, but in both cases, the display of the pipe body is made directly on the pipe. It is a common means to print and display, or to use a tape or sheet-shaped display material to attach it using the adhesive that has been previously applied to the back surface, or to apply adhesive to the tube to adhere it. Met.

[0003]

[Problems to be solved by the device]

 However, when printing and displaying directly on the former tube, it is difficult to accurately print and display because the object is a corrugated tube, and when printing in advance at a factory, etc., it can not be diverted to another. However, the printing position becomes a partial position with a specific interval, and it is difficult to check if the printing position is on the side or the lower side of the pipe during piping.Therefore, the piping posture is restricted. I have the problem of receiving it. On the other hand, when a tape or sheet-shaped display material is pasted on the back side using an adhesive that has been pre-applied, or an adhesive is applied to the pipe to adhere it, the adhesive is prone to deterioration over time, and therefore the adhesive The problem is that the tapes and sheets that come off easily fall off.

The object of the present invention is to solve various problems in the display means of the conventional buried pipe at once, and it is extremely easy, easy, and reliable to perform the identification display of the buried corrugated pipe. It is intended to provide an identifying tool for a medium buried corrugated pipe.

[0005]

[Means for Solving the Problems]

 In the construction of the underground buried corrugated pipe identifying device according to the present invention taken to solve this problem, the lateral width w is set to a width smaller than one pitch interval W of the corrugated wall 1 of the underground buried corrugated pipe P. The length of the corrugated pipe P is one-half or more of the outer diameter of the valley portion 2, the side view is C-shaped, and the whole is made of a highly elastic synthetic resin material. It has been configured.

In carrying out the identifying tool according to the present invention, the identifying code 12 such as characters and symbols is displayed on the outer peripheral surface 10 side of the identifying tool R, or the outer peripheral surface 10 is formed into a flat surface. It is preferably carried out as an item. Even if the identification code 12 such as a character or a symbol is not displayed, the color of the identification tool R itself is changed to, for example, identify the communication line, the power line, and other objects protected in the pipe. You can also do it.

As a material for forming the discriminating tool, PVC, PP, PE and other synthetic resin materials which are rich in toughness and elastic restoring force, and which are excellent in water resistance and weather resistance and have little deterioration with time. Is preferred.

[0008]

[Action]

 Since the identifying tool R of the present invention having such a configuration is formed in a C shape in a side view, it has already been installed in the underground corrugated pipe or a pipe body after completion of piping. On the other hand, the C-shaped open end portions 11, 11 may be opened and pushed into the valley portion 2 of the corrugated pipe P to be fitted by utilizing elasticity. The identification tool R fitted in the valley portion 2 of the pipe body in this manner adheres to the pipe body by its own elastic restoring force, and is moved in the pipe axis direction by the side walls 4 on both sides of the valley portion 2. Are blocked and are stable in the fitted position.

[0009]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings. 1 to 3 are views showing a first embodiment of the present invention. FIG. 1 is a diagram showing the overall shape of the identifying tool, and FIGS. 2 and 3 are diagrams showing a state in which it is attached to a synthetic resin pipe P having an outer peripheral surface in a spiral wave shape.

The identifying tool R shown in the embodiment has a shape suitable for use in a spiral corrugated pipe, and as shown in FIG. 1, a semi-rigid synthetic resin material such as PVC is cut. It is a band-shaped material extruded in the shape of a plane "━", has an arc length that is nearly annular in a side view, and is wholly twisted in a spiral direction. The shape is in phase with the axial direction by a length corresponding to.

In other words, the circumferential length of the identifying tool R is, as seen in FIGS. 2 and 3, the outer diameter of the valley portion 2 of the pipe wall 1 of the underground buried spiral corrugated pipe P to be used. Is also a little shorter, and its width w is set to fit in the depression of the valley portion 2. As seen in FIG. , 11 are slightly close to each other in the lateral width w direction, and the whole is formed in a spiral shape.

In the identifying tool R of the embodiment, the identification code 12 including characters and symbols is printed on the outer peripheral surface 10 formed on the flat surface of the identifying tool R, and the corrugated tube P is formed. It is indicated that the object to be protected inside is the cable for cable TV and the administrator is the municipality.

A preferable means for efficiently manufacturing the identifying tool R is to extrude a synthetic resin strip from a synthetic resin extruder onto a circular shaft having a required diameter, and wind the synthetic resin in a spiral shape in order while keeping a gap where they do not abut each other. The coiled helix is rotated to obtain a coiled helix, which is sequentially cut at appropriate positions in the circumferential direction.

The identifying tool R shown in the embodiment has a material having a cross-sectional shape of “━”, but it goes without saying that it is not limited to this shape. As a typical other shape, as shown in FIG. 4, when the outer peripheral surface side is flat, a semi-circular shape Ra, a rear side flat deformed semi-circular shape Rb, a substantially triangular shape Rc, a substantially square shape Rd, etc. There is. However, the outer peripheral surface side does not necessarily have to be a flat surface, and may be circular Re or cylindrical R f.

Although a typical embodiment of the present invention has been described above, the present invention is not necessarily limited to the structure of the embodiment described above, and a plurality of different colors such as two colors and three colors may be used. The present invention may be carried out by appropriately modifying it within the scope of having the above-mentioned constitutional requirements referred to in the present invention, achieving the object referred to in the present invention, and having the effects described below. It is possible.

[0016]

[Effect of device]

 As is apparent from the above description, the present invention has a width that is smaller than one pitch interval of the corrugations of the pipe wall of the underground buried corrugated pipe, and the length is 2 minutes of the outer diameter of the valley portion of the corrugated pipe. The length is 1 or more, the side view shape is C-shaped, and the entire structure is made of a highly elastic synthetic resin material. By displaying identification codes such as letters and symbols on the outer peripheral surface, it is possible to display the identification of communication lines, power lines and other objects protected by objects, managers, etc. To do this, you can simply open both ends of the C-shaped open end and push it into the trough of the corrugated pipe to fit it to any part of the existing corrugated pipe or the pipe body after piping is completed. The fitted identification device adheres to the pipe body by its elastic restoring force, and By being prevented from moving in the tube axis direction, and has the effect of not departing stable Te fitted allowed location odor.

[Brief description of drawings]

FIG. 1 is a perspective view of the overall shape showing a first embodiment.

FIG. 2 is a front view showing a state of being attached to a pipe wall portion.

FIG. 3 is a perspective view showing a state of the lower surface side of FIG.

FIG. 4 is an end view showing a cross-sectional shape of an identification tool according to another embodiment.

[Explanation of symbols]

 1 Pipe Wall 2 Valley 4 Side Wall 10 Outer Surface 11 Open End 12 Identification Code R Identification Tool P Waveform Pipe W Waveform Pitch Interval w Width

Claims (3)

[Scope of utility model registration request] 1. A pipe wall (1) having a width (w) of a corrugated pipe (P) buried underground.
The width is smaller than the one pitch interval (W) of the corrugation, and the length has a length of ½ or more of the outer diameter of the valley portion (2) of the corrugated pipe (P), and the side view shape is C An identification tool for underground corrugated pipes that is formed in a letter shape and is entirely made of elastic synthetic resin material. 2. An identification code of characters, symbols, etc. on the outer peripheral surface (10) side
The identification tool for a buried corrugated pipe according to claim 1, wherein (12) is displayed. 3. The underground buried corrugated pipe identifying device according to claim 1, wherein the outer peripheral surface (10) is formed as a flat surface.