JP2004264008A - Blowing-in preventing device - Google Patents

Blowing-in preventing device Download PDF

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Publication number
JP2004264008A
JP2004264008A JP2003103406A JP2003103406A JP2004264008A JP 2004264008 A JP2004264008 A JP 2004264008A JP 2003103406 A JP2003103406 A JP 2003103406A JP 2003103406 A JP2003103406 A JP 2003103406A JP 2004264008 A JP2004264008 A JP 2004264008A
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JP
Japan
Prior art keywords
prevention device
blowing
wind
blow
slits
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.)
Pending
Application number
JP2003103406A
Other languages
Japanese (ja)
Inventor
Hideaki Koya
英明 小屋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2003103406A priority Critical patent/JP2004264008A/en
Publication of JP2004264008A publication Critical patent/JP2004264008A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a blowing-in preventing device capable of eliminating the generation of noise and an interference with an air flow due to the blocking of an air duct, and capable of discharging invading rainwater to the outside. <P>SOLUTION: A plurality of windbreak boards each of which is formed with slits, and arranged fins and a drain port, are attached with positions of the slits alternately arranged. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、換気口の風道内の装置に関する。
【0002】
【従来の技術】
従来の換気口の風道内の吹き込み防止装置は、図3、図4に示すように板状のダンパーが吹き込みの風圧により押された時にダンパーが閉じて風道を塞ぐことにより、吹き込みを防いでいる。
【0003】
【発明が解決しようとする課題】
しかしながら、以上の従来技術によれば、ダンパーが閉じるたびに完全に空気の流れが止まり常時少量づつの吸気を必要とする換気口には不向きであり、且つ、ダンパーが閉まるたびにダンパーと風道本体との衝突音が発生している。
そこで、この発明は、音の発生を無くし、風道を塞いで空気の流れを止めること無く、侵入した雨水も外部へ出す吹き込み防止装置を提供することを課題とする。
【0004】
【課題を解決するための手段】
この発明は、換気口の吹き込み防止装置に関する。
従来の換気口の風道内の吹き込み防止装置は、図3、図4に示すように板状のダンパーが吹き込みの風圧により押された時に閉じることにより
吹き込みを防いでいる。
しかしながら、以上の従来技術によればダンパーが閉じるたびに完全に空気の流れが止まり、常時少量づつの吸気を必要とする換気口には不向きであり、且つ、ダンパーが閉まるたびにダンパーと風道本体との衝突音が発生している。
以上の課題を解決するために、請求項1の発明は、ダンパーの代わりにスリットがついた防風板を、スリットの位置が交互になるように複数枚設けたことを特徴とする吹き込み防止装置である。
また、請求項2の発明は、防風板に外部へ向けて折り返したフィンを設けたことを特徴とする吹き込み防止装置である。
また、請求項3の発明は、防風板の下部に水抜き口を設けたことを特徴とする吹き込み防止装置である。
【0005】
【発明の実施の形態】
この発明の一実施形態を、図1、図2に示す。
この防風板▲2▼は、樹脂又は金属で出来ており複数枚設けられ、防風板▲2▼とスリット▲3▼の位置が交互になっており、防風板▲2▼には外部方向へ折り返したフィン▲4▼がついている、さらに下部に水抜き口▲5▼が設けられている。
【0006】
「実施形態の効果」
この実施形態によれば、外部からの強い吹き込み▲6▼は交互に配置された複数枚の防風板▲2▼に当たり、且つ、フィン▲4▼によって逆方向へむけられ更に防風板に当たる。この繰り返しの妨害により風勢が徐々に弱められ侵入出来なくなる。又、ダンパー▲7▼が無いので風道が閉じられることが無く常時必要吸気量だけ取り入れることが可能になり、音も出ず途中まで風とともに入り込んだ雨水も防風板▲2▼とフィン▲4▼に止められて水抜き口▲5▼から風道の外部への傾斜により外へ排水される。
【0007】
図1、図2の実施形態では、常時吸気であるが逆方向の常時排気の場合でも使用できる。
【0008】
【発明の効果】
以上説明したように、この発明によれば、ダンパーの閉じる音が無く、風道が閉じられることが無いので常時吸気が容易であり、雨水の侵入も防ぐことが出来る。
【0009】
又、強風の地域では、防風板の枚数を増やすことにより特異な強風地域にも対応できる。
【図面の簡単な説明】
【図1】この発明の一実施形態を示す正面図である。
【図2】この発明の一実施形態を示す断面図である。
【図3】従来技術を示す正面図である。
【図4】従来技術を示す断面図である。
【符号の説明】
▲1▼風道本体 ▲2▼防風板本体
▲3▼スリット ▲4▼フィン
▲5▼水抜き口 ▲6▼吹き込み風
▲7▼ダンパー
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device in a ventilation duct.
[0002]
[Prior art]
As shown in FIG. 3 and FIG. 4, the conventional blow-prevention device in the air path of the ventilation opening prevents the blow by closing the air path when the plate-shaped damper is pressed by the blowing wind pressure. I have.
[0003]
[Problems to be solved by the invention]
However, according to the above prior art, the air flow is completely stopped every time the damper is closed, and it is unsuitable for a ventilation port that always requires a small amount of intake air. A collision sound with the main unit is generated.
Accordingly, it is an object of the present invention to provide a blowing prevention device that eliminates generation of sound, blocks an airway, and does not stop the flow of air, and also allows invading rainwater to go outside.
[0004]
[Means for Solving the Problems]
The present invention relates to a blowout prevention device for a ventilation port.
As shown in FIG. 3 and FIG. 4, the conventional blowing prevention device in the air path of the ventilation opening prevents blowing by closing when a plate-shaped damper is pressed by the blowing wind pressure.
However, according to the above prior art, the air flow is completely stopped every time the damper is closed, which is unsuitable for a ventilation port that always requires a small amount of intake, and each time the damper is closed, the damper and the air passage are closed. A collision sound with the main unit is generated.
In order to solve the above problems, the invention according to claim 1 is a blowout prevention device, characterized in that a plurality of windproof plates having slits are provided in place of dampers so that the positions of the slits are alternately arranged. is there.
According to a second aspect of the present invention, there is provided a blow-in prevention device, wherein a fin is provided on the windbreak plate so as to be turned outward.
A third aspect of the present invention is the blow-in prevention device, wherein a drain port is provided below the windbreak plate.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the present invention is shown in FIGS.
The windproof plate (2) is made of resin or metal, and a plurality of the windproof plates (2) are provided. The positions of the windproof plate (2) and the slits (3) are alternately arranged. It has a fin (4) and a drain port (5) at the bottom.
[0006]
"Effects of the embodiment"
According to this embodiment, a strong blow from the outside (6) hits a plurality of alternately arranged wind shields (2), and is directed in the opposite direction by the fins (4) and further hits the wind shields. The wind is gradually weakened by this repeated obstruction, so that the wind cannot be entered. In addition, since there is no damper (7), it is possible to always take in only the required amount of air without closing the wind path, so that there is no sound and the rainwater that has entered along with the wind halfway is also windproof plate (2) and fins (4) It is stopped by ▼ and drained out by the slope of the airway from the drain port ▲ 5 ▼ to the outside.
[0007]
In the embodiment of FIG. 1 and FIG. 2, it is possible to use even in the case of constant intake but always constant exhaust in the opposite direction.
[0008]
【The invention's effect】
As described above, according to the present invention, there is no sound of closing the damper and the wind path is not closed, so that the intake is always easy and the intrusion of rainwater can be prevented.
[0009]
In a strong wind area, it is possible to cope with a unique strong wind area by increasing the number of windshields.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a sectional view showing an embodiment of the present invention.
FIG. 3 is a front view showing a conventional technique.
FIG. 4 is a sectional view showing a conventional technique.
[Explanation of symbols]
(1) Main body of wind path (2) Main body of windbreak board (3) Slit (4) Fin (5) Drain port (6) Blow wind (7) Damper

Claims (3)

換気口の風道内にスリット設けた防風板を、スリットの位置が交互になるように複数枚設けたことを特徴とする吹き込み防止装置。A blowout prevention device comprising a plurality of windproof plates provided with slits in an air passage of a ventilation opening so that slit positions are alternately provided. 風道内の防風板の部分に外部側へ向けて折り返したフィンを設けることを特徴とする請求項1記載の吹き込み防止装置。2. The blow-in prevention device according to claim 1, wherein a fin folded back toward the outside is provided at a portion of the windbreak plate in the wind path. 風道内の防風板の下部に水抜き口を設けることを特徴とした
請求項1記載の吹き込み防止装置。
2. The blow-in prevention device according to claim 1, wherein a drain port is provided below the windbreak plate in the air path.
JP2003103406A 2003-03-03 2003-03-03 Blowing-in preventing device Pending JP2004264008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003103406A JP2004264008A (en) 2003-03-03 2003-03-03 Blowing-in preventing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003103406A JP2004264008A (en) 2003-03-03 2003-03-03 Blowing-in preventing device

Publications (1)

Publication Number Publication Date
JP2004264008A true JP2004264008A (en) 2004-09-24

Family

ID=33127752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003103406A Pending JP2004264008A (en) 2003-03-03 2003-03-03 Blowing-in preventing device

Country Status (1)

Country Link
JP (1) JP2004264008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021081162A (en) * 2019-11-22 2021-05-27 株式会社日立産機システム Air shower device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021081162A (en) * 2019-11-22 2021-05-27 株式会社日立産機システム Air shower device

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