JPH0646108B2 - Wind pressure open / close type shutter device - Google Patents
Wind pressure open / close type shutter deviceInfo
- Publication number
- JPH0646108B2 JPH0646108B2 JP22258586A JP22258586A JPH0646108B2 JP H0646108 B2 JPH0646108 B2 JP H0646108B2 JP 22258586 A JP22258586 A JP 22258586A JP 22258586 A JP22258586 A JP 22258586A JP H0646108 B2 JPH0646108 B2 JP H0646108B2
- Authority
- JP
- Japan
- Prior art keywords
- shutter plate
- shutter
- opening
- wind pressure
- frame
- 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 - Fee Related
Links
Landscapes
- Air-Flow Control Members (AREA)
Description
【発明の詳細な説明】 (イ)産業上の利用分野 本発明は通気通路の吐出開口や換気扇に組み込んで用い
られる風圧開閉式シャッター装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a wind pressure opening / closing shutter device used by being incorporated in a discharge opening of a ventilation passage or a ventilation fan.
(ロ)従来の技術 本発明に先行する技術として実公昭61-7450号公報に記
載の風圧開閉式シャッター装置がある。シャッター装置
は外枠に開閉回動可能に枢設され送風ファンの駆動によ
る風圧によって開動作しその送風ファンの駆動停止に伴
い自重によって閉動作する複数枚の風圧開放式のシャッ
ターと、これらシャッターを相互に連結し該シャッター
の開及び閉動作に伴って下方及び上方に変位する連結杵
と、この連結杵と前記外枠との間に張設され連結杵を下
方に付勢して前記シャッターに開放方向の扶助力を作用
せしめる引張スプリングとを具備して成るものである。(B) Conventional Technique As a technique prior to the present invention, there is a wind pressure open / close shutter device described in Japanese Utility Model Publication No. 61-7450. The shutter device is pivotally mounted on the outer frame so that it can be opened and closed, and opens by the wind pressure generated by the drive of the blower fan, and closes by its own weight when the blower fan is stopped. A connecting pestle that is connected to each other and that is displaced downward and upward with the opening and closing operations of the shutter, and is stretched between the connecting pestle and the outer frame to urge the connecting pestle downward to the shutter. And a tension spring that exerts a assisting force in the opening direction.
(ハ)発明が解決しようとする問題点 従来の技術において連結杵は引張スプリングにて常に開
放方向に付勢していることで開放時においてはスムーズ
に開くものであるが閉じている時はバタツキが発生し易
く異音が発生するものである。(C) Problems to be Solved by the Invention In the prior art, the connecting pestle always opens in the opening direction by the tension spring, so that it opens smoothly when it is opened, but it flaps when it is closed. Is likely to occur and abnormal noise is generated.
本発明はシャッター板の閉塞時におけるバタツキを防止
し開放時においてはスムーズに開く風圧開閉式シャッタ
ー装置を得ることをその技術的課題とするものである。SUMMARY OF THE INVENTION It is a technical object of the present invention to provide a wind pressure open / close shutter device that prevents fluttering when the shutter plate is closed and opens smoothly when the shutter plate is opened.
(ニ)問題点を解決するための手段 本発明は枠体の吐出側開口に枢支した複数枚のシャッタ
ー板と、シャッター板を連動開閉する連動杆と、連動杵
と枠体間に引張されたバネ体とを備え、シャッター板と
枠体との枢支部及びシャッター板と連動杵との連結部と
を結ぶ作用線とバネ体の引張方向線とがシャッター板閉
塞時は吐出側で交差し、シャッター板開放初期において
吸込側で交差するようにした手段でもって問題点を解決
するものである。(D) Means for Solving the Problems The present invention is directed to a plurality of shutter plates pivotally supported at the discharge side opening of a frame body, an interlocking rod for interlocking opening and closing of the shutter plates, and a pulling force between the interlocking punch and the frame body. A spring body, the line of action that connects the pivotal support between the shutter plate and the frame and the connection between the shutter plate and the interlocking punch, and the pulling direction line of the spring body intersect on the discharge side when the shutter plate is closed. The problem is solved by means of making the suction side intersect at the initial stage of opening the shutter plate.
(ホ)作用 本発明はシャッター板が閉じている時バネ体は連動杵に
対し閉塞方向の力を付与し、シャッター板が風圧にて少
し開くとバネ体は連動杵に対し開放方向の力を付与す
る。(E) Action In the present invention, when the shutter plate is closed, the spring body applies a force in the closing direction to the interlocking pestle, and when the shutter plate is slightly opened by wind pressure, the spring body applies the force in the opening direction to the interlocking pestle. Give.
(ヘ)実施例 第1図乃至第5図に示す換気扇1に用いた第1実施例
と、第6図に示す第2実施例に基づき本発明を説明す
る。(F) Embodiment The present invention will be described based on the first embodiment used in the ventilation fan 1 shown in FIGS. 1 to 5 and the second embodiment shown in FIG.
第1図はシャッター板2が閉塞した状態の換気扇1の断
面図、第2図はシャッター板2が風圧にて開き始めた初
期状態における断面図、第3図はシャッター板2が開放
した状態の部分断面図である。1 is a cross-sectional view of the ventilation fan 1 with the shutter plate 2 closed, FIG. 2 is a cross-sectional view of the shutter plate 2 in the initial state where the shutter plate 2 starts to open due to wind pressure, and FIG. 3 is a state in which the shutter plate 2 is open. FIG.
換気扇1は室壁Wに形成した開口に挿入支持される四角
状枠体3と、枠体3内に架設した支持杵4中央に装着す
る電動機5と、電動機5にて駆動される送風羽根6と、
枠体3の吸込側開口縁に張設した鍔部7に弾性装着する
前カバー体8と、枠体3の吐出側開口部に開閉自在に枢
支する複数枚のシャッター板2とを有する。前カバー体
8は合成樹脂にて形成し、送風羽根6を囲む風洞9を形
成している。前カバー体8の下部には油受体10を着脱自
在としている。The ventilation fan 1 has a rectangular frame body 3 inserted and supported in an opening formed in the chamber wall W, an electric motor 5 mounted at the center of a support rod 4 installed in the frame body 3, and a blower blade 6 driven by the electric motor 5. When,
The frame 3 has a front cover 8 elastically attached to a flange 7 stretched on the suction side opening edge, and a plurality of shutter plates 2 pivotably supported in the discharge side opening of the frame 3 so as to be openable and closable. The front cover body 8 is made of synthetic resin and forms a wind tunnel 9 surrounding the blower blades 6. An oil receiver 10 is detachably attached to the lower portion of the front cover body 8.
枠体3の吐出側開口両側にはシャッター板2を枢支する
枢軸11を突設したシャッター支持体12を螺子13にて固定
している。螺子13は枠体3の外側からシャッター支持体
12捩じ込まれ、上側に位置する螺子13の先端はシャッタ
ー支持体12より突出する。シャッター板2の上端部は連
動杵14にて連結され、シャッター板2と連動杵14とはカ
シメンピンにて形成した連結部15にて回動自在に連結さ
れる。枠体3と連動杵14との間にはバネたい5が引張さ
れる。バネ体16の一端は螺子13の突出部に係止され、他
端は連動杵14の係止部17に係止される。バネ体16の引張
力を有効に利用するためにバネ体16は適度の長さに引張
されなければならないため、本実施例は連動杵14の一部
をくの字状に屈曲し、屈曲部分に係止部17を形成してい
る。シャッター支持体12にはシャッター板2が閉じた時
の衝突音を吸収する突起18を形成している。なおシャッ
ター板2をシャッター支持体12を介して枠体2に枢支し
たものであるが、シャッター支持体12は枠体3の一構成
部材であり、シャッター板2を直接枠体3に枢支させて
もよい。但し本実施例では枠体3外面に穴が形成されず
外観上良好となる。On both sides of the discharge side opening of the frame body 3, a shutter support body 12 having a pivot 11 that pivotally supports the shutter plate 2 is fixed by screws 13. The screw 13 is a shutter support from the outside of the frame body 3.
12 is screwed in, and the tip of the screw 13 located on the upper side projects from the shutter support 12. The upper end of the shutter plate 2 is connected by an interlocking pestle 14, and the shutter plate 2 and the interlocking pestle 14 are rotatably connected by a connecting portion 15 formed by a cashmere pin. A spring pad 5 is pulled between the frame 3 and the interlocking punch 14. One end of the spring body 16 is locked to the protruding portion of the screw 13, and the other end is locked to the locking portion 17 of the interlocking punch 14. In order to effectively use the pulling force of the spring body 16, the spring body 16 must be pulled to an appropriate length, so this embodiment bends a part of the interlocking pestle 14 in a dogleg shape, An engaging portion 17 is formed on the. The shutter support 12 is formed with a protrusion 18 that absorbs a collision sound when the shutter plate 2 is closed. The shutter plate 2 is pivotally supported on the frame body 2 via the shutter support body 12. The shutter support body 12 is a component of the frame body 3, and the shutter plate 2 is directly pivoted on the frame body 3. You may let me. However, in this embodiment, no hole is formed on the outer surface of the frame body 3, and the appearance is good.
シャッター板2の開閉に伴ない枢軸11と連結部15とを結
ぶ作用線はA、B、Cと変化し同様にバネ体16の引張方
向線もD、E、Fと変化する。シャッター板2が閉じて
いる状態において作用線Aと引張方向Dは第1図と第5
図に示す如く枠体3に対する吐出側にて交差する。従っ
て連動杵14を介して連結部15に作用する力Fは作用線A
に対し上側に向い作用していることで枢軸11を中心にシ
ャッター板2を閉ざす方向に付勢されている。その結果
シャッター板2は外風によってバタツクことが防止さ
れ、その閉塞は確実なものとなる。送付羽根6の回転に
よりシャッター板2の内側に風圧が作用するとその風圧
はバネ体16による閉鎖力より大きいためシャッター板2
は開き始め、第2図及び第5図に示す如く作用線Bと引
張方向Eは平行となる。この平行となる位置を超えてシ
ャッター板2がさらに風圧にて開放されると、第3図と
第5図に示す如く作用線Cと引張方向線Fは枠体3に対
する吸込側にて交差する。従って連結杵14を介して連結
部15に作用する力Fは作用線Cに対し下側に向い作用し
ていることで枢軸11を中心にシャッター板2を開く方向
に付勢されていることになる。その結果シャッター板2
は風圧にバネ体16による付勢力を加えた力で開放され、
その開放がスムーズに行なわれると共に開放状態におい
て外風がシャッター板2に作用しても安定した開放が維
持できる。またシャッター板2の開放時にバネ体16の力
が開放方向に加えられることでシャッター板2を合成樹
脂、ステンレス、アルミ等の軽量に形成せずともよく板
金にても形成できる。With the opening and closing of the shutter plate 2, the lines of action connecting the pivot 11 and the connecting portion 15 change to A, B and C, and similarly the tension direction line of the spring body 16 also changes to D, E and F. When the shutter plate 2 is closed, the action line A and the pulling direction D are as shown in FIGS.
As shown in the figure, the frame 3 intersects on the discharge side. Therefore, the force F acting on the connecting portion 15 via the interlocking punch 14 is the line of action A.
On the other hand, by acting toward the upper side, the shutter plate 2 is biased about the pivot 11 in the direction of closing the shutter plate 2. As a result, the shutter plate 2 is prevented from fluttering due to the outside air, and its closing is ensured. When wind pressure acts on the inside of the shutter plate 2 due to the rotation of the sending blades 6, the wind pressure is larger than the closing force of the spring body 16, so the shutter plate 2
Starts to open, and the line of action B and the pulling direction E become parallel as shown in FIGS. 2 and 5. When the shutter plate 2 is further opened by the wind pressure beyond the position of being parallel, the action line C and the pulling direction line F intersect on the suction side with respect to the frame body 3 as shown in FIGS. 3 and 5. . Therefore, the force F acting on the connecting portion 15 via the connecting pestle 14 acts downwardly with respect to the line of action C, so that the shutter plate 2 is biased in the direction of opening the shutter plate 2 about the pivot 11. Become. As a result, shutter plate 2
Is released by the force of the spring body 16 added to the wind pressure,
The opening is performed smoothly, and even when outside air acts on the shutter plate 2 in the opened state, the stable opening can be maintained. Further, when the shutter plate 2 is opened, the force of the spring body 16 is applied in the opening direction, so that the shutter plate 2 does not have to be made of synthetic resin, stainless steel, aluminum, or the like, and can be formed of sheet metal.
第6図に示す第2実施例はバネ体16の係止に関するもの
で、シャッター支持体12にバネ体16一端の係止部20を形
成したものである。従って螺子13に兼用させた第1実施
例の如く特別に長い螺子を用いる必要がなく組立時の螺
子止めミスが防止される。The second embodiment shown in FIG. 6 relates to the locking of the spring body 16, in which the locking portion 20 at one end of the spring body 16 is formed in the shutter support 12. Therefore, unlike the first embodiment in which the screw 13 is also used, it is not necessary to use a specially long screw, and a screwing mistake at the time of assembly can be prevented.
本発明は前述の実施例に限定されるものではなくバネ体
16の付勢部分、引張構造、連動杵14の構造等作用線と引
張方向線との関係を変更しない範囲において種々の構造
で実施できるものである。The present invention is not limited to the above-mentioned embodiment, but a spring body
The present invention can be implemented with various structures within a range that does not change the relationship between the action line and the tensile direction line such as the structure of the urging portion 16 of the pulling structure, the interlocking pestle 14, and the like.
(ト)発明の効果 本発明は単一のバネ体を用いシャッター板に対する開閉
各状態における付勢方向を変化させるようにしたことで
確実な開閉、スムーズな開閉を行なえる。(G) Effect of the Invention According to the present invention, since a single spring body is used to change the biasing direction in each state of opening and closing with respect to the shutter plate, reliable opening and closing and smooth opening and closing can be performed.
図は本発明の実施例を示すもので、第1図は換気扇の断
面図、第2図はシャッター板半開き状態の断面図、第3
図はシャッター板開放状態の部分断面図、第4図は連動
杵とバネ体部分の断面図、第5図は開閉動作説明図、第
6図は第2実施例の第4図と同様断面図である。 2……シャッター板、3……枠体、11……枢軸、14……
連動杵、15……連結部、16……バネ体、A、B、C……
作用線、D、E、F……引張方向線。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a sectional view of a ventilation fan, FIG. 2 is a sectional view of a shutter plate in a half-opened state, and FIG.
FIG. 4 is a partial sectional view of the shutter plate opened, FIG. 4 is a sectional view of the interlocking pestle and the spring body portion, FIG. 5 is an explanatory view of opening / closing operation, and FIG. 6 is a sectional view similar to FIG. 4 of the second embodiment. Is. 2 ... Shutter plate, 3 ... Frame, 11 ... Axis, 14 ...
Interlocking pestle, 15 …… Coupling part, 16 …… Spring body, A, B, C ……
Line of action, D, E, F ... Line of tension direction.
Claims (1)
ッター板と、シャッター板を連動開閉する連動杆と、連
動杵と枠体間に引張されたバネ体とを備え、シャッター
板と枠体との枢支部及びシャッター板と連動杵との連結
部とを結ぶ作用線とバネ体の引張方向線とがシャッター
板閉塞時は吐出側で交差し、シャッター板開放初期にお
いて吸込側で交差するようにしたことを特徴とする風圧
開閉式シャッター装置。1. A shutter plate, comprising: a plurality of shutter plates pivotally supported at a discharge side opening of a frame body; an interlocking rod for opening and closing the shutter plate interlockingly; and a spring body tensioned between the interlocking rod and the frame body. When the shutter plate is closed, the line of action connecting the pivotal support between the frame and the frame and the connecting part between the shutter plate and the interlocking punch and the pulling direction line of the spring body intersect on the discharge side, and on the suction side in the initial stage of opening the shutter plate. A wind pressure open / close shutter device characterized by being intersected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22258586A JPH0646108B2 (en) | 1986-09-19 | 1986-09-19 | Wind pressure open / close type shutter device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22258586A JPH0646108B2 (en) | 1986-09-19 | 1986-09-19 | Wind pressure open / close type shutter device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6375433A JPS6375433A (en) | 1988-04-05 |
JPH0646108B2 true JPH0646108B2 (en) | 1994-06-15 |
Family
ID=16784774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22258586A Expired - Fee Related JPH0646108B2 (en) | 1986-09-19 | 1986-09-19 | Wind pressure open / close type shutter device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0646108B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2508150B2 (en) * | 1987-11-02 | 1996-06-19 | 三菱電機株式会社 | Ventilation fan shutter device |
US20120178356A1 (en) * | 2011-01-12 | 2012-07-12 | John Waldner | Attic inlet |
JP5799575B2 (en) * | 2011-05-16 | 2015-10-28 | 株式会社富士通ゼネラル | Blowout grill |
KR101413178B1 (en) * | 2012-07-18 | 2014-06-27 | 주식회사 팬직 | A blower possessing shutters which are operated by wind pressure |
CN110155095B (en) * | 2019-06-06 | 2020-06-19 | 中车株洲电力机车有限公司 | Rail vehicle and air inlet device thereof |
-
1986
- 1986-09-19 JP JP22258586A patent/JPH0646108B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS6375433A (en) | 1988-04-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |