Title:
DOUBLE TUBE JOINT AND FOUNDATION PENETRATION PIPING STRUCTURE USING THE SAME
Document Type and Number:
Japanese Patent JP2015075189
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a double tube joint showing a high degree of freedom at the time of work and capable of accommodating for various foundation sizes.SOLUTION: A double tube joint 10 comprises a sheath pipe 12 and an inner pipe 14 inserted into the sheath pipe. An inner pipe elbow 26 of the inner pipe 14 is formed by removably fitting a first elbow member 32 and a second elbow member 34 via a water stop member. The first elbow member 32 is stored in a sheath pipe elbow 16 under a state in which it can be withdrawn from a first sheath pipe straight 18, its one end is formed with a first fitting part opened in elliptical shape, the second elbow member 34 is stored in the sheath pipe elbow 16 under a state in which it can be withdrawn from the second sheath pipe straight 20 and its one end is formed with the second fitting part that is fitted to the first fitting part.
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Inventors:
NAGATA YUKI
Application Number:
JP2013212519A
Publication Date:
April 20, 2015
Filing Date:
October 10, 2013
Export Citation:
Assignee:
KUBOTA C I CO LTD
International Classes:
F16L39/04; E03C1/12; E03C1/122; F16L43/00
Attorney, Agent or Firm:
Yoshito Yamada
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