Title:
PARTITION-PENETRATING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2017/122793
Kind Code:
A1
Abstract:
In a partition-penetrating structure provided with a sleeve (10) disposed in concrete (5) for forming a partition-penetrating hole (38) and piping or wiring (8) that passes through the sleeve (10), the sleeve (10) is provided with a hollow sleeve body (12) containing a thermally expandable flame-resistant resin material. With regard to the clearance C between the sleeve body (12) and the piping or wiring (8) and the expansion ratio and residual hardness of the sleeve body (12), when general equation S is defined as below, S is in the range of 0-500.
S=1/[{(expansion ratio)×(residual hardness)}/(clearance)2]
(the unit for residual hardness is kgf/cm2, and the unit for clearance is mm)
Inventors:
NAKAJIMA HIDEYASU (JP)
SHIMAMOTO MICHIO (JP)
SHIMAMOTO MICHIO (JP)
Application Number:
PCT/JP2017/001059
Publication Date:
July 20, 2017
Filing Date:
January 13, 2017
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
F16L5/04; E04B1/94
Foreign References:
| JP2008031799A | 2008-02-14 | |||
| JPH0828760A | 1996-02-02 | |||
| JPH08312840A | 1996-11-26 | |||
| JP2007315007A | 2007-12-06 | |||
| US20020096881A1 | 2002-07-25 | |||
| JP2016223279A | 2016-12-28 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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