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Title:
WATER STOP MEMBER FOR SHIELD SEGMENT
Document Type and Number:
WIPO Patent Application WO/2019/117087
Kind Code:
A1
Abstract:
The present invention simplifies a water-stopping operation of a joint between segment rings and shortens the work time for said operation. A water stop member (1) used in a joint between segment rings of a shield segment, the water stop member (1) being configured from an elastic body comprising a water discharge part (2) that forms a water discharge flow channel in the joint, a first seal part (3) that attaches tightly to an inner wall of the joint, and hollow sections (6).

Inventors:
IDA TSUYOSHI (JP)
KOMATSU RYOHEI (JP)
SAKO YOSHIO (JP)
Application Number:
PCT/JP2018/045333
Publication Date:
June 20, 2019
Filing Date:
December 10, 2018
Export Citation:
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Assignee:
TOGAWA RUBBER CO LTD (JP)
International Classes:
E21D11/38; E21D11/04
Foreign References:
JPS52101221U1977-08-01
JP2003514208A2003-04-15
JPS5198131A1976-08-28
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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