CUT-OFF MATERIAL FOR LAYING GAP

Title:

CUT-OFF MATERIAL FOR LAYING GAP

Document Type and Number:

Japanese Patent JP3418830

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a cut-off material for laying gap with an expansion part hardly bending in a vertical direction.
SOLUTION: This cut-off material for the laying gap used being bonded between end face T, T forming the laying gap, is formed by stacking an upper side protective layer 56, a middle cut-off material layer 4 and a lower side support material layer 1 in order and integrally bonding them. The support material layer 1 as a pair of longitudinal closed call foam parts 2 and an expansion part 3 integrated being stuck between the closed cell foam part 2, 2. The expansion part 3 is constituted by bonding to integrate a plurality of open cell foam bodies 30 and a column member 21 hardly changing volume, and the column member 31 is received by a receiving member 6 fitted to the end faces T.

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Inventors:

Yukihiko Ishibashi
Hiroshi Yamauchi

Application Number:

JP2000354324A

Publication Date:

June 23, 2003

Filing Date:

November 21, 2000

Export Citation:

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Assignee:

Nitta Corporation
Asahi Kako Co., Ltd.

International Classes:

E01C11/02; E01D19/06; E04B1/62; E04B1/684; E01D101/40; (IPC1-7): E04B1/62; E01C11/02; E01D19/06

Domestic Patent References:

JP7331758A
JP2296904A

Attorney, Agent or Firm:

Kazuyoshi Tsujimoto

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