JPS58221091A - Pipe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a so-called flexible pipe that allows fluid to flow through it.

Conventional flexible pipes are typically soft negative vinyl chloride pipes, but in order to connect a pipe of a desired length that has been cut at a desired point to a mating end such as a connector, it is necessary to press the gasket because it is soft. However, it is common practice to use a solvent-based adhesive between the pipe and the connector to prevent shallow water. Such flexible pipes have the drawback of requiring time for the solvent-based adhesive to solidify, which reduces workability.

The present invention has been made in view of these drawbacks, and will be described below with reference to the embodiments shown in FIGS. 1 and 2.

In the figure, (1) is an inner pipe (2) made of soft PVC pipe.
), and an outer tube (8), (3)... group consisting of hard negative PVC pipes coated on the inner tube (2) at desired intervals, and an inner tube. Bind the tube (2) only part to the flexible tube section (la), (1a)... and separate the inner tube (2) and outer tube (
Split the double pipe (8) part of 3) into circular pipe parts (1b), (1b)
...and so on. The continuous pipe (1), which is a long pipe when shipped from the factory, is cut to the desired length at the construction site (the split pipe part (1b) is selected as the cutting position), and the end for pipe connection (
This constitutes a pipe (4) having four ridges. and the pipe (
4) has its tube connecting end (4a) connected to the connector (5). That is, the cap nut (5C) is screwed into the male screw part (5b) provided at the end of the tubular connector main body (5a) into which the pipe connection end (4a) is inserted.
The gasket (5a) held between the end face of the connector body (5a) and the gasket (5C) is compressed, and the gasket (5b) comes into contact with the split pipe part (1b) to prevent water leakage and tighten the tube. The connecting end (4a) is connected to the connector (5).In addition, the pipe (4) maintains the performance of the continuous pipe (1) shown in FIG. Of course, it can also be used as a flexible pipe.

In the above embodiment, the flexible tube part (1a) and the split circular tube part (1b) are formed by a combination of the inner tube (2) and the outer tube (8), but the present invention is not limited to this. It goes without saying that this is an example.

As described above, the pipe of the present invention is characterized in that a continuous pipe is formed by alternately arranging flexible tube portions and split circular tube portions, and a desired split circular tube portion is cut to form an end portion for pipe connection. This has the following effects.

(1) As with conventional flexible tubes, the continuous tube can be cut at desired points and used.

(2) The pipe connection end has high rigidity and can withstand the pressure of the packing like a non-flexible pipe while maintaining the performance of a flexible pipe. can.

[Brief explanation of drawings]

Figures 1 and 2 show embodiments of the present invention.
Prisoner 81 is a front view of the continuous pipe in a curved state, which is the source of the pipe.
FIG. 2 is a partially sectional top view showing the connected state of the pipe connector. Patent applicant Matsushita Electric Works Co., Ltd. Representative patent attorney Toshimaru Takemoto (and 2 others)

Claims (1)

[Claims] (1) A pipe characterized in that a desired split pipe part of a continuous pipe formed by alternately arranging flexible pipe parts and split pipe parts is cut to form an end for pipe connection.