JPS6052856U

JPS6052856U - fire shutter

Info

Publication number: JPS6052856U
Application number: JP14392583U
Authority: JP
Inventors: 小坂　正美; 栄作橘
Original assignee: 日新電機株式会社
Priority date: 1983-09-16
Filing date: 1983-09-16
Publication date: 1985-04-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図および第２図は従来例の平面図、第３図はこの考
案の第１の実施例の側面図、第４図はその動作を示す側
面図、第５図は同じくその正面図、第６図は第２の実施
例の側面図、第７図のＡ、　Ｂは夫々他の形態の側面図
、第８図は第３の′実施例の正面図である。１１・・・通路、１３・・・天井、１５・・・取付具、
１６・・・シート状シャッタ本体、１７・・・開口部、
１８・・・上枠。1 and 2 are plan views of the conventional example, FIG. 3 is a side view of the first embodiment of this invention, FIG. 4 is a side view showing its operation, and FIG. 5 is a front view thereof. 6 is a side view of the second embodiment, A and B in FIG. 7 are side views of other embodiments, and FIG. 8 is a front view of the third embodiment. 11... Passage, 13... Ceiling, 15... Fixture,
16... sheet-like shutter body, 17... opening,
18...Top frame.

Claims

[Scope of utility model registration request]

A fixture fixed to the ceiling of the passageway or the upper frame of the opening, and one end of which is attached to the fixture and has a size approximately equal to the cross-sectional area of the passageway or opening area, and cannot be folded or rolled up at room temperature. A fire prevention shutter comprising a sheet-like shutter body made of a shape memory alloy that maintains a concentrated shape near the fixture and memorizes an expanded shape that closes the passage or the opening or mouth in a high temperature state.