JPS585884Y2 - damper - Google Patents
damperInfo
- Publication number
- JPS585884Y2 JPS585884Y2 JP5500374U JP5500374U JPS585884Y2 JP S585884 Y2 JPS585884 Y2 JP S585884Y2 JP 5500374 U JP5500374 U JP 5500374U JP 5500374 U JP5500374 U JP 5500374U JP S585884 Y2 JPS585884 Y2 JP S585884Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- shaped
- damper
- duct
- rectangular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Lift Valve (AREA)
- Air-Flow Control Members (AREA)
Description
【考案の詳細な説明】
空調用ダクトの途中にダンパーを設け、火災発生時に、
このダンパーを閉じて延焼の防止と煙の蔓延を防ぐこと
が従来より行なわれている。[Detailed explanation of the idea] A damper is installed in the middle of the air conditioning duct, and in the event of a fire,
Conventionally, this damper is closed to prevent the spread of fire and smoke.
このような従来のダンパーは、第１図に示すように、ダ
クト１の内側に、互いに羽根２の厚みだけ位置をずらせ
てリーク防止用ストッパー縁３１．３２を設け、羽根２
を回動させて、羽根２がダクト１と平行な位置で開放状
態、羽根２がストッパー縁３１．３２に接している位置
で閉鎖状態とするものである。As shown in FIG. 1, such a conventional damper has leak-preventing stopper edges 31 and 32 provided inside the duct 1 and spaced apart by the thickness of the blades 2.
is rotated so that the blade 2 is in an open state in a position parallel to the duct 1, and in a closed state in a position where the blade 2 is in contact with the stopper edge 31, 32.
このようなダンパーにおいては、羽根２を回動させる軸
４が、羽根２と同一平面上にありそのために、羽根２の
周縁のうちで軸４の近傍の部分３３．３４にすき間がで
きて気密性が悪くなるという欠点があった。In such a damper, the shaft 4 for rotating the blade 2 is on the same plane as the blade 2, and therefore, a gap is created in a portion 33, 34 of the periphery of the blade 2 near the shaft 4, so that the blade 2 is not airtight. The disadvantage was that it made the sex worse.
また、ストッパー３１．３２にダクト内の塵埃がたまり
羽根２の閉鎖時における気密性を損うなどの欠点があっ
た。Further, there is a drawback that dust in the duct accumulates on the stoppers 31 and 32, impairing airtightness when the blade 2 is closed.
そこで、この考案はこのような欠点を除くために考えら
れたものであって、第２図および第３図に示すように、
角形ダクト１の断面よりやや小さい角形の羽根２を設け
、この羽根２は、軸４によって回動させられ、そして、
羽根２の周縁には、バッキングとしての役割を果す気密
手段が設けられている。Therefore, this invention was devised to eliminate such drawbacks, and as shown in Figures 2 and 3,
A rectangular blade 2 that is slightly smaller in cross section than the rectangular duct 1 is provided, and this blade 2 is rotated by a shaft 4, and
The periphery of the blade 2 is provided with airtight means that serves as a backing.
この気密手段は、断面形状がＵ字形であって、長゛穴８
を有するＵ字形金具５と、板バネ６とからなり、長穴８
と係合する頭付きピン７によって羽根２に取り付けられ
ている。This airtight means has a U-shaped cross section and has a long hole 8.
It consists of a U-shaped metal fitting 5 having a
It is attached to the vane 2 by a headed pin 7 which engages with the vane 2.
そして、Ｕ字形金具５は、通常、バネ６によって角形ダ
クト１内面に圧着されて羽根２と角形ダクト１の内面と
の間の隙間をなくシ、良好な気密性を保つのである。The U-shaped fitting 5 is usually pressed against the inner surface of the rectangular duct 1 by a spring 6 to eliminate the gap between the vane 2 and the inner surface of the rectangular duct 1, thereby maintaining good airtightness.
このＵ字形金具５にステンレスの薄板を用いると、耐火
性が良くなり、かつ、回動時の摩擦も比較的少なくする
ことができる。If a thin stainless steel plate is used for this U-shaped metal fitting 5, fire resistance will be improved, and friction during rotation can be relatively reduced.
第１図は、従来のダンパーの断面図、第２図はこの考案
のダンパーの正面図、第３図は、第２図の線ＩＩＩ−Ｉ
ＩＩにおいて切断して示した断面図であり各図を通じて
同一部分は同一符号で表わされている。
１・・・・・・ダクＩ・、２・・・・・・羽根、３１．
３２・・・・・・ストッパー縁、４・・・・・・回動軸
、５・・・・・・Ｕ字形金具、６・・・・・・板バネ、
７・・・・・・頭付きピン、８・・・・・・長穴。FIG. 1 is a sectional view of a conventional damper, FIG. 2 is a front view of the damper of this invention, and FIG. 3 is a line III-I in FIG.
This is a sectional view taken through II, and the same parts are designated by the same reference numerals throughout each figure. 1...Dak I, 2...Blade, 31.
32... Stopper edge, 4... Rotating shaft, 5... U-shaped metal fitting, 6... Leaf spring,
7... Headed pin, 8... Long hole.
Claims (1)
を回動させる軸と、上記羽根の周縁に取り付けられた断
面がＵ字形金具と、該Ｕ字形金具を上記角形ダクト内面
にほぼ垂直に圧着させるバネとを具備し、上記Ｕ字形金
具はそれにあけられた長穴と係合する頭付きピンによっ
て上記羽根に取り付けられていることを特徴とするダン
パーA rectangular blade that is slightly smaller in cross section than the rectangular duct, a shaft for rotating the blade, a metal fitting with a U-shaped cross section attached to the periphery of the blade, and the U-shaped metal fitting is crimped almost perpendicularly to the inner surface of the rectangular duct. the U-shaped fitting is attached to the vane by a headed pin that engages with an elongated hole drilled in the U-shaped fitting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5500374U JPS585884Y2 (en) | 1974-05-16 | 1974-05-16 | damper |
| US05/541,160 US3980272A (en) | 1974-05-16 | 1975-01-15 | Fire smoke damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5500374U JPS585884Y2 (en) | 1974-05-16 | 1974-05-16 | damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50144455U JPS50144455U (en) | 1975-11-28 |
| JPS585884Y2 true JPS585884Y2 (en) | 1983-02-01 |
Family
ID=28206574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5500374U Expired JPS585884Y2 (en) | 1974-05-16 | 1974-05-16 | damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585884Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565715Y2 (en) * | 1976-11-11 | 1981-02-06 |
-
1974
- 1974-05-16 JP JP5500374U patent/JPS585884Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50144455U (en) | 1975-11-28 |
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