Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONDUIT TUBE, BRIDGE STRUCTURE, AND METHOD OF MANUFACTURING THE CONDUIT TUBE
Document Type and Number:
Japanese Patent JP2013044343
Kind Code:
A
Abstract:

To provide a conduit tube capable of being installed in a bent state and capable of draining percolating water with the deterioration of the concrete structure after curing while suppressing the outflow of a coagulated component of concrete by controlling the drain during the curing.

The conduit tube 20 includes a base tube 22 which is of a structure such that voids are formed among wire members, and a flow control sheet 24 which is structured with a composite of a resin sheet having multiple fine holes and a fiber sheet and covers the base tube 22. Water that permeates inside the base tube 22 from a concrete structure through the flow control sheet 24 is drained outside. The flow control sheet 24 is structured with a strip-like member. The flow control sheet 24 is wound on the base tube 22 along the axial direction of the base tube 22 with both ends in the width direction of the strip-like member being overlapped mutually.


Inventors:
FUJITA AKIRA
IHARA KOICHIRO
FUJITA KAZUYA
Application Number:
JP2011180480A
Publication Date:
March 04, 2013
Filing Date:
August 22, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KURARAY PLASTICS CO
International Classes:
F16L11/02; D04C1/06; E01D19/08
Domestic Patent References:
JP2009068146A2009-04-02
JP3094202U2003-06-13
JPH1163380A1999-03-05
JP2008025807A2008-02-07
JP2003213776A2003-07-30
Foreign References:
US4153080A1979-05-08
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Tamagushi Yukihisa



 
Previous Patent: BRAKE DISC ROTOR

Next Patent: ROLLING BEARING