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Patent Searching and Data


Title:
PIPE JOINT FOR JACKING METHOD
Document Type and Number:
Japanese Patent JP2002327594
Kind Code:
A
Abstract:

To lay a pipeline having earthquake-resistant pipe joints, using jacking method.

The pipe joint is so formed that pipes are interconnected by inserting a sealing rubber ring 4 between the inner surface of a socket 3 and the outer surface of a spigot 2 inserted into the socket 3. A welding protrusion 10 which is high enough to abut the open end 3b of the socket is formed on the outer surface of the spigot 2 and in a circumferential position which corresponds to the open end 3b of the socket. The jacking force of the pipes is transmitted from the spigot 2 to the open end 3b of the socket via the welding protrusion 10.


Inventors:
ARAKAWA NORIYUKI
ISHIHARA TAKAHIRO
Application Number:
JP2001135650A
Publication Date:
November 15, 2002
Filing Date:
May 07, 2001
Export Citation:
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Assignee:
KUBOTA KK
International Classes:
E21D9/06; F16L1/024; (IPC1-7): E21D9/06; F16L1/024
Attorney, Agent or Firm:
Yoshihiro Morimoto