Title:
SHEATH CONDUIT STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2014/203313
Kind Code:
A1
Abstract:
The purpose of the present invention is, in a sheath conduit in which a PC steel member is inserted and that is filled with grout, to prevent corrosion of the PC steel member caused by bleed water by isolating the bleed water, which is produced inside the conduit when the grout cures, or allowing the same to escape. This sheath conduit (1) comprises connection sites (12) where ends of sheaths (10) are coupled and fixed via a joint member (11). In the connection site (12), a connecting tube (21) of the joint member (11) is fit around and fixed to the end of the sheath (10) by screwing together a ridge (15) of the sheath (10) and a projection (25) of the joint member (11) while the outer peripheral face (16) of the ridge (15) and the inner circumferential face (26) of the projection (25) are in partial contact with each other, and a water discharge channel (30) for guiding bleed water, which is produced inside the conduit when grout (4) cures, to the exterior of the conduit is formed between the end of the sheaths (10) and the connecting tubes (21) of the joint members (11).
Inventors:
KIKUMORI YASUHIRO (JP)
NABA TSUNEHIRO (JP)
NABA TSUNEHIRO (JP)
Application Number:
PCT/JP2013/066617
Publication Date:
December 24, 2014
Filing Date:
June 17, 2013
Export Citation:
Assignee:
TOTAKU IND (JP)
International Classes:
E04C5/10; E01D1/00
Foreign References:
| JP4404933B2 | 2010-01-27 |
Attorney, Agent or Firm:
AKIYAMA SHIGEO (JP)
Shigeo Akiyama (JP)
Shigeo Akiyama (JP)
Download PDF:
Previous Patent: COOLING APPARATUS FOR ENGINE SYSTEM AND CONTROL METHOD THEREFOR
Next Patent: ENCODER, MOTOR PROVIDED WITH ENCODER, AND SERVO SYSTEM
Next Patent: ENCODER, MOTOR PROVIDED WITH ENCODER, AND SERVO SYSTEM