DOUBLE TUBE JOINT FOR PENETRATION OF BASE, DUCT LINE CONSTRUCTION METHOD AND DUCT LINE RENEWAL METHOD

Japanese Patent JP2016065630

A

SOLUTION: A double tube joint 10 for penetration of base is a joint for constructing a discharging pipe penetrating a foundation of building. The joint comprises an inner tube 12 and a sheath tube 14. The inner tube comprises an elbow part 20 curved in a prescribed angle and a lateral tube part 22 having a larger axial length than a thickness of a rising part of the foundation. In addition, the sheath tube comprises a lateral opening part 30 opened in a lateral direction, a curved part 32 curved upwardly from a base end part of the lateral opening part, and an upper opening part 34 opened upwardly and having such a size enabling the inner tube to be pulled or inserted.EFFECT: To have a superior construction characteristic and facilitate renewal of a discharging tube since all the connection works for the discharging tube are also facilitated.SELECTED DRAWING: Figure 1

JP2587977	[Title of the Invention] A method for piping a fluid pipe, a terminal fixing device for the fluid pipe used for the piping method, and a joint for fixing the terminal.
JP6935300	Underground burial box pipe connection part Anti-termite structure, anti-termite pipe terminal, and anti-termite pipe connection

NAGATA YUKI
KOBAYASHI TAKAHIRO

JP2014195957A

April 28, 2016

September 26, 2014

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KUBOTA-C I CO LTD

F16L5/00; E03C1/12; F16L13/10

JPH04285219A	1992-10-09
JP2009102929A	2009-05-14
JP2012246709A	2012-12-13

Yoshito Yamada

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