Title:
BLIND COVER AND CONSTRUCTION METHOD OF FIREPROOF STRUCTURE
Document Type and Number:
Japanese Patent JP2017053374
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a blind cover capable of blindfolding an open hole even when a pipe body with a different outer diameter is inserted.SOLUTION: A blind cover 1 includes a frame-like substrate 2 arranged so as to surround an open hole on an outer surface of a partition body, and a plurality of covering pieces 3 attached to the substrate 2 so as to enable derricking operation with a base end side as a fulcrum. The covering pieces 3 are formed into a curved surface shape of directing a lengthwise direction and a width direction outward and forming a convex shape, and are consecutively arranged in a circumferential direction of the substrate 2 so that parts of the covering pieces are overlapped with each other.SELECTED DRAWING: Figure 1
Inventors:
NAKAJIMA HIDEYASU
MAKITA YASUKAZU
MAKITA YASUKAZU
Application Number:
JP2015175730A
Publication Date:
March 16, 2017
Filing Date:
September 07, 2015
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
F16L5/00; E04B1/94; F16L5/04
Domestic Patent References:
| JP2014109367A | 2014-06-12 | |||
| JP2009243612A | 2009-10-22 | |||
| JP2014077617A | 2014-05-01 |
Foreign References:
| US5129201A | 1992-07-14 |
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office