JPS63172082A - Joining section of hume pipe with socket - 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] "Purpose of invention" a　Industrial application field The present invention relates to a joint of a socketed hume pipe.

b. Prior Art As shown in Fig. 3, when joining a socketed hume tube +3 (B-type tube) in which one end of the tube is formed into a socket fil and the other end is formed into a spicot (2), the spicot (2) is used. 2) by fitting the rubber ring (4) onto the spicot (
2) is fitted onto the tapered inner wall (1a) of the socket fl) to achieve watertightness by utilizing the elasticity of the rubber ring (4). Additionally, an expandable rubber ring is fitted to ensure watertightness.

C Problems to be Solved by the Invention When the rubber ring (4) is fitted into the spicot (2) and then fitted into the tapered inner wall (1a) of the socket (1), the rubber ring (4) may be twisted due to frictional resistance. Otherwise, the spicot (2) may be pushed back a little due to its elasticity, which may create a minute gap and cause water leakage, making construction difficult. Furthermore, expansible rubber rings are expensive.

"Structure of the Invention" a. Means for Solving the Problems Water-tightness is obtained by gluing or laminating a water-stopping material having appropriate elasticity on the socket and the spicot, and using the elasticity to press the joint, The purpose is to facilitate construction and form inexpensive joints.

b. Effects and Examples Therefore, according to the present invention, when a spicot on which a water-stopping material such as a vinyl chloride material is glued or laminated is fitted into a socket on which a water-stopping material such as a vinyl chloride material is glued or laminated, both vinyl chloride The entire surface of the spicot is crimped over a wide area of the inner wall of the socket due to the elasticity of the water-stopping material, such as aluminum.

Below, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in Figures and Figure 2, the Hume tube with socket (6
) in the step part (5a) that was created by missing the subicot side,
A water stop material (6) such as a vinyl chloride material having appropriate elasticity in the form of a thin strip having the desired wall thickness is attached to the hume pipe (5) with a socket.
A layer of vinyl chloride material or the like having a desired thickness is laminated on the stepped portion (5a) in a fallow manner. It is important that the water stop material (6) hides the subicosoto angle (5b) formed at the stepped portion (5a), and the end face of the water stop material (6) is missing to facilitate insertion into the socket. . Next, a water-stopping material (6) such as a vinyl chloride material having appropriate elasticity in the form of a strip having a desired wall thickness is adhered to the inner wall surface (5c) on the socket side of the hume pipe (5) with a socket. A layer of vinyl chloride material or the like of a thickness of 100 mL is laminated on the inner wall surface (5) in a fallow manner. It is important that the water stop material (6) hides the socket angle (5d), and the end face of the water stop material (6) is omitted to facilitate insertion of the spicot. Therefore, the water stop material (6) is not limited to vinyl chloride material, and it goes without saying that other inexpensive materials with the same effect can be used instead. In addition, waterproof material (
Applying an adhesive to the surface of 6) will provide even more reliable watertightness.

"Effects of the Invention" Since the present invention is constructed in this manner, a spicot in which the water-stopping material (6) is adhered or laminated to the stepped portion (5a) is similarly attached to the inner wall surface (5c). When fitted to a glued or laminated socket, they are crimped together by the appropriate elasticity of the waterproof material (6), and in the case of a conventional connection using a rubber ring, a very thin rubber ring is crimped to the inner wall of the socket and the outer wall of the spicot. However, according to the present invention, water leakage is completely prevented because the water-stopping materials (6) are pressure-bonded to each other over a wide area. In addition, the rubber ring is twisted due to frictional resistance during joining, or it is difficult to push back the spicot due to its elasticity, but according to the present invention, the water-stopping material (6) is reliably attached as soon as the spicot is fitted into the socket. It adheres closely and is very easy to install and can be done quickly. In addition, there is no error between the outer diameter of the spicot and the inner diameter of the socket, so that the inner diameter surfaces of the socket-equipped hume pipes (6) perfectly match.
There is no step difference in the joint, and there is no risk of a defective joint. In addition, if an adhesive is applied to the surface of the water stop material (6), the joints will be more firmly bonded and a completely watertight structure will be obtained.

As described above, the present invention is a useful invention that has a robust structure, is easy to manufacture, and has good workability.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the central part showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part with notches showing the fitted state, and Fig. 3 is a sectional view of the central part showing an example of conventional joining construction. be.

Claims (3)

[Claims] (1) A joint of a hume pipe with a socket, characterized in that a water-stopping material having appropriate elasticity is adhered or laminated to the socket and the spicot, and the water-stopping materials are crimped together to make the joint watertight. (2) Claim 1 in which the water stop material is made of vinyl chloride material
Joint part of Hume pipe with socket as described in Section 2. (3) A joint portion of a fume pipe with a socket according to claim 1 or 2, which is formed by applying an adhesive to the pressure-bonding surface of the water-stopping material.