JPS648150U

JPS648150U -

Info

Publication number: JPS648150U
Application number: JP10002287U
Authority: JP
Priority date: 1987-07-01
Filing date: 1987-07-01
Publication date: 1989-01-18

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す概略斜視図、
第２図は実施例の主要部を示す正面図及び断面図
である。図において、１０はダクト、１２はダンパーハ
ウジング、１４は回転部、１６はダンパー羽根で
ある。 FIG. 1 is a schematic perspective view showing an embodiment of the present invention;
FIG. 2 is a front view and a sectional view showing the main parts of the embodiment. In the figure, 10 is a duct, 12 is a damper housing, 14 is a rotating part, and 16 is a damper blade.

補正昭６２．９．９実用新案登録請求の範囲を次のように補正する
。Amendment September 9, 1982 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】 (1) 火災等による発熱を検知して、ダクトを瞬
間的に閉鎖するフアイヤダンパーにおいて、前記ダクトに固定設置された外枠部と、該外枠部内に回転可能な状態で設置された回転
部と、一端を上記外枠部に他端を上記回転部に軸着さ
れた複数の絞り羽根手段と、上記回転部に回転動力を与える駆動手段とを具
備したことを特徴とするフアイヤダンパー。 (2) 前記駆動手段は、形状記憶合金によつて成
形されたスプリングであることを特徴とする実用
新案登録請求の範囲第一項記載のフアイヤダンパ
ー。図面の簡単な説明を次のように補正する。明細書第８頁第１５行の「回転部」を「スライ
ド板」と補正する。[Scope of Claim for Utility Model Registration] (1) A fire damper that instantly closes a duct by detecting heat generated by a fire, etc., which includes an outer frame fixedly installed on the duct, and a rotating part inside the outer frame. a rotating part installed in a state in which the rotating part is possible; a plurality of aperture blade means having one end pivoted to the outer frame part and the other end pivoted to the rotating part; and a driving means for applying rotational power to the rotating part. A fire damper characterized by: (2) The fire damper according to claim 1, wherein the driving means is a spring formed of a shape memory alloy. The brief description of the drawing has been amended as follows. "Rotating part" on page 8, line 15 of the specification is corrected to "sliding plate."

Claims

[Scope of Claim for Utility Model Registration] (1) A fire damper that instantly closes a duct by detecting heat generated by a fire, etc., which includes an outer frame fixedly installed on the duct, and a rotating part inside the outer frame. a rotating part installed in a state where the rotating part is possible; a plurality of aperture blade means having one end pivoted to the outer frame part and the other end pivoted to the rotating part; and a driving means for applying rotational power to the rotating part. Fire damper featuring. (2) The fire damper according to claim 1, wherein the driving means is a spring formed of a shape memory alloy.