JP2000073624A - Air-inflated membrane structural body - Google Patents
Air-inflated membrane structural bodyInfo
- Publication number
- JP2000073624A JP2000073624A JP10245230A JP24523098A JP2000073624A JP 2000073624 A JP2000073624 A JP 2000073624A JP 10245230 A JP10245230 A JP 10245230A JP 24523098 A JP24523098 A JP 24523098A JP 2000073624 A JP2000073624 A JP 2000073624A
- Authority
- JP
- Japan
- Prior art keywords
- air
- reinforcing member
- film
- film structure
- main body
- 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.)
- Granted
Links
Landscapes
- Tents Or Canopies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、船舶の修理や塗装
などの工事現場、建築工事現場、仮設展示場、球技場な
どの作業空間全体を覆って、降雪時でも作業が出来るよ
うにすための軽量であって、しかも設営が簡便な空気膜
構造体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to cover the entire work space such as a construction site for repair and painting of a ship, a construction site, a temporary exhibition site, a ballpark, and the like so that work can be performed even during snowfall. The present invention relates to an air film structure which is lightweight and easy to set up.
【０００２】[0002]
【従来の技術】従来より、屋外における作業は、雨天や
降雪の際は作業を中止し、降雨、降雪が止むのを待って
作業を続行している。しかしながら、降雨、降雪の度に
作業を中止していたのでは作業効率が悪い上に、どうし
ても日程を延期することができない作業もある。このた
め、天候に左右されずに、効率的に仕事が行なえるよう
に、例えば、船舶の修理や塗装などの工事現場、建築工
事現場、仮設展示場、球技場等の作業空間及び／又は居
住空間（以下、「作業空間及び／又は居住空間」を単に
「活動空間」と称することとする）を確保するための屋
根状膜構造体が提案されている。このような屋根状構造
物としては、長期間にわたって半恒久的に使用するため
の物もあるが、一定の期間だけ所定の作業空間や居住空
間を確保出来ればよい物もある。2. Description of the Related Art Conventionally, outdoor work has been suspended in rainy weather or snowfall, and continued after rainfall or snowfall has stopped. However, if the work is stopped every time it rains or snowfalls, the work efficiency is low, and there are some works whose schedule cannot be postponed. Therefore, in order to be able to work efficiently without being affected by the weather, for example, a work space and / or a living space such as a construction site for repair or painting of a ship, a construction site, a temporary exhibition hall, a ballpark, etc. A roof-like membrane structure for securing a space (hereinafter, “work space and / or living space” is simply referred to as “active space”) has been proposed. Some of such roof-like structures are intended to be used semi-permanently for a long period of time, while others are only required to secure a predetermined working space or living space for a certain period of time.
【０００３】前記の一定の期間だけ所定の活動空間を確
保出来ればよい屋根状構造物としては、例えばパイプ材
などの仮設用の部材からなる骨組みを形成し、この骨組
みをシートで覆う構造のものがある。しかしながら、広
い空間を覆うことが要求される大型の屋根状構造物とも
なると、パイプ材などの重量が増大して運搬、設営、解
体に費やす労力と時間が多大となるという問題がある。[0003] As a roof-like structure which only needs to be able to secure a predetermined activity space for the above-mentioned fixed period, for example, a structure formed of a temporary member such as a pipe material is formed, and this structure is covered with a sheet. There is. However, when a large roof-like structure is required to cover a large space, there is a problem that the weight of pipes and the like increases, and labor and time spent for transportation, installation, and dismantling are increased.
【０００４】この問題を解決する方法として、本発明者
等は、特開平９−１４６５９２号公報において、空気膜
構造体の設置間口幅と開口間口幅の比、全高と有効高さ
の比、及び有効高さと開口間口幅の比を所定の範囲に収
めることにより剛性を向上させた空気膜構造体が提案さ
れている。しかしながら、この空気膜構造体の場合、風
速１０ｍ／ｓｅｃ以上の強風に耐えることができるもの
の、さらに厳しい環境下での使用を望む市場ニーズは、
年々高まりつつあり、対応できなくなってきた。また、
開口間口方向に垂直に流れる風に対しては、空気膜構造
体が振動、ゆれを生じるため、居住空間内にいる人々に
不安感を与えるという問題も有している。As a method for solving this problem, the present inventors disclosed in Japanese Patent Application Laid-Open No. 9-146592 a ratio of the installation width of the air film structure to the width of the opening, a ratio of the total height to the effective height, and An air film structure having improved rigidity by keeping the ratio between the effective height and the opening width in a predetermined range has been proposed. However, in the case of this air film structure, although it can withstand a strong wind at a wind speed of 10 m / sec or more, market needs for use in a more severe environment are as follows.
It is growing year by year and can no longer be handled. Also,
The air film structure vibrates and shakes with respect to the wind flowing perpendicularly to the opening frontage direction, so that there is also a problem of giving anxiety to people in the living space.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上述のよう
な問題に鑑み、設営、解体、運搬が容易であり、かつ大
きな風圧にも耐えることができる軽量な空気膜構造体を
提供することにある。SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a lightweight air film structure which can be easily set up, dismantled, and transported and can withstand a large wind pressure. It is in.
【０００６】[0006]
【課題を解決するための手段】ここに、本発明によれ
ば、（請求項１） 下面膜、上面膜による二重膜構造を
なし、該下面膜と該上面膜をつなぐリブ状ホホヅエ膜群
とにより空気室が形成され、かつ該リブ状ホホヅエ膜に
は空気が流通自在の連通孔が設けられており、該空気室
に注入された加圧気体により、その両側端部に開口が形
成され、かつ上面膜が屋根状立体形状を有する空気膜構
造体であって、前記の開口の少なくとも上半部には該開
口を塞ぐ防風補強部材が設けられていることを特徴とす
る空気膜構造体、（請求項２） 請求項１記載の空気膜
構造体であって、前記防風補強部材が板状体、膜状体、
網状体、又はこれらの組み合わせによって構成されてい
ることを特徴とする空気膜構造体、（請求項３） 請求
項１又は請求項２記載の空気膜構造体であって、前記防
風補強部材の下端部に補強部材を有することを特徴とす
る空気膜構造体、（請求項４） 請求項１〜３の何れか
一項に記載の空気膜構造体であって、前記防風補強部材
の形状が下記要件を同時に満たすことを特徴とする空気
膜構造体、 ｈ／Ｈ≦０．９５ （１） ｈ≧２（ｍ） （２） Ｈ≧２．５（ｍ） （３） ただし、 Ｈ：空気膜構造体の有効高さ（ｍ） ｈ：防風補強部材の配置高さ（ｍ） （請求項５） 請求項１〜４の何れか一項に記載の空気
膜構造体であって、前記防風補強部材が空気膜構造体の
本体に着脱自在に設けられていることを特徴とする空気
膜構造体が提供される。According to the present invention, there is provided (claim 1) a group of rib-shaped hollow films which form a double film structure of a lower film and an upper film and connect the lower film and the upper film. An air chamber is formed by the above, and a communication hole through which air can flow is provided in the rib-shaped hollow film, and an opening is formed at both end portions by pressurized gas injected into the air chamber. And an upper surface film having a three-dimensional roof-like shape, wherein at least an upper half of the opening is provided with a windproof reinforcing member for closing the opening. (Claim 2) The air membrane structure according to claim 1, wherein the windproof reinforcing member is a plate-like body, a film-like body,
An air film structure characterized by comprising a net-like body or a combination thereof, (Claim 3) The air film structure according to Claim 1 or 2, wherein a lower end of the windproof reinforcing member. (4) The air film structure according to any one of (1) to (3), wherein the windproof reinforcing member has the following shape. An air film structure characterized by satisfying requirements simultaneously, h / H ≦ 0.95 (1) h ≧ 2 (m) (2) H ≧ 2.5 (m) (3) where H: air film Effective height (m) of the structure h: Arrangement height of the windproof reinforcing member (m) (Claim 5) The air film structure according to any one of claims 1 to 4, wherein the windproof reinforcement is provided. An air film structure is provided, wherein the member is detachably provided on a main body of the air film structure. .
【０００７】[0007]
【発明の実施の形態】以上に述べた本発明の実施の形態
について、以下に図面を参照しながら、その作用と共に
詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention described above will be described below in detail with reference to the accompanying drawings.
【０００８】本発明の空気膜構造体は、エアー注入型の
軽量構造体であって、空気を注入することによって屋根
状立体形状を形成し、その基本構造は図１に示すような
ものである。The air film structure of the present invention is a lightweight structure of an air injection type, and forms a roof-like three-dimensional shape by injecting air, and its basic structure is as shown in FIG. .
【０００９】該図において、１は空気膜構造体（単に、
「本体」と称することもある。）であって、該空気膜構
造体１は、上面膜２、下面膜３、リブ状ホホヅエ膜４を
持ち、該リブ状ホホヅエ膜４は連通孔６を有している。
なお、５は本体１が単独で使用される場合には、側面膜
を構成し、実質的に上面膜２又は下面膜３により構成さ
れている。しかしながら、複数の空気膜構造体ユニット
で空気膜構造体を形成する際には、これらの空気膜構造
体ユニット合体圧接するための圧接面となる。また、７
は空気の給排気口、８は防風補強部材をそれぞれ示す。In the figure, 1 is an air film structure (simply,
It may be referred to as the “body”. ), The air film structure 1 has an upper film 2, a lower film 3, and a rib-like film 4, and the rib-like film 4 has a communication hole 6.
Reference numeral 5 designates a side film when the main body 1 is used alone, and is substantially constituted by the upper surface film 2 or the lower surface film 3. However, when the air film structure unit is formed by a plurality of air film structure units, the air film structure unit serves as a pressure contact surface for press-fitting the air film structure units. Also, 7
Denotes an air supply / exhaust port, and 8 denotes a windproof reinforcing member.
【００１０】ここで、本発明の空気膜構造体１は、目付
が３０〜２００ｇ／ｍ2 、通気度が０．１ｃｃ／ｓｅｃ
・ｃｍ2 以下、好ましくは、５０ｇ／ｍ2 以下の目付、
０．０２ｃｃ／ｓｅｃ・ｃｍ2 以下の通気度を有する膜
材を使用する。なお、通気度の試験方法は、１．２７ｃ
ｍ水柱に相当する圧縮空気を織物に負荷して、一定時間
内に試料である織物を通過する単位面積当たりの空気量
を測定することによって求めた（日本工業規格「ＪＩＳ
Ｌ１０９６ 一般織物試験方法」に準拠）。Here, the air membrane structure 1 of the present invention has a basis weight of 30 to 200 g / m 2 and an air permeability of 0.1 cc / sec.
· Cm 2 or less, preferably, 50 g / m 2 or less of the mass per unit area,
A membrane material having an air permeability of 0.02 cc / sec · cm 2 or less is used. In addition, the test method of the air permeability is 1.27 c
Compressed air equivalent to m water columns is applied to the fabric, and the amount of air per unit area that passes through the fabric, which is a sample, within a predetermined time is measured (Japanese Industrial Standard "JIS").
L1096 General textile test method ").
【００１１】本発明の空気膜構造体１では、該膜材を下
面膜３と上面膜２として使用することにより、下面膜３
と上面膜２との間に空気室を形成させた二重構造を採る
構造体を形成させる。この時、二重構造にした部分は、
全面積の３０％以上に構成することが必要である。も
し、３０％未満とすれば、空気室に空気を注入して立ち
上げるにあたり、空気柱部が少なくなって、空気膜構造
体１を屋根状立体構造として立ち上げるのが難しくな
り、好ましくない。また、二重構造部を複数個形成させ
る場合には、二重構造部をそれぞれ独立して存在させる
のではなく、これらの空気室が連通するようにするのが
よい。このようにすることで、形態保持性、安定性、組
み立てあるいは取り外しなどに優れた空気膜構造体１が
提供される。更に、前記の二重構造部には、少なくとも
１以上の空気給排気口７を本体の側面に設け、該空気給
排気口７よりエアーを注入することによって屋根状立体
形状を形成させることができる。なお、この空気給排気
口７の数は、多いほど、畳む際に早く畳めることができ
て好ましいが、その数は二重膜の構造により適宜決める
のがよい。In the air film structure 1 of the present invention, the film material is used as the lower film 3 and the upper film 2 so that the lower film 3 is formed.
A structure having a double structure in which an air chamber is formed between the upper surface film 2 and the upper surface film 2 is formed. At this time, the part with the double structure
It is necessary to make up 30% or more of the total area. If it is less than 30%, when air is injected into the air chamber and activated, the number of air columns decreases, and it becomes difficult to activate the air film structure 1 as a roof-like three-dimensional structure, which is not preferable. When a plurality of double structure portions are formed, it is preferable that these air chambers communicate with each other, instead of having the double structure portions independently. By doing so, the air film structure 1 excellent in shape retention, stability, assembling or detachment, etc. is provided. Further, at least one or more air supply / exhaust ports 7 are provided on the side surface of the main body in the double structure portion, and a three-dimensional roof shape can be formed by injecting air from the air supply / exhaust ports 7. . It is preferable that the number of the air supply / exhaust ports 7 increases as the number of the air supply / exhaust ports 7 increases, so that the number of the air supply / exhaust ports 7 can be appropriately determined depending on the structure of the double membrane.
【００１２】ここで、空気膜構造体１を構成する前記の
膜材の目付が２００ｇ／ｍ2 を超えると、取り付け取り
外しなどが難しく、その作業が面倒で時間を要し、一方
３０ｇ／ｍ2未満であると、強力や通気性に問題があり
安定した使用が難しい。特に、軽量化された大型のもの
に対しては、その目付を３０〜５０ｇ／ｍ2 とするのが
好ましい。また、その通気度に関しては、０．１ｃｃ／
ｓｅｃ・ｃｍ2 を超えると、膜材の表面積が大きくなっ
た場合にその形態保持性がでなくなって好ましくなく、
したがって、０．１ｃｃ／ｓｅｃ・ｃｍ2 以下、特に、
０．０２ｃｃ／ｓｅｃ・ｃｍ2 以下とするのが好まし
く、実質的に０であるのがさらに好ましい。Here, if the basis weight of the above-mentioned film material constituting the air film structure 1 exceeds 200 g / m 2 , it is difficult to mount and remove the film material, and the work is troublesome and time-consuming, while 30 g / m 2. If it is less than this, there is a problem in the strength and air permeability, and it is difficult to use it stably. In particular, it is preferable to set the basis weight to 30 to 50 g / m 2 for a large, lightweight one. Regarding the air permeability, 0.1 cc /
If it exceeds sec · cm 2 , when the surface area of the film material becomes large, its shape retention is lost, which is not preferable.
Therefore, 0.1 cc / sec · cm 2 or less, in particular,
It is preferably 0.02 cc / sec · cm 2 or less, and more preferably substantially 0.
【００１３】また、前記の膜材の材質としては、ポリエ
ステル繊維、ポリアミド繊維、アラミド繊維、炭素繊
維、ポリオレフィン繊維、、ポリアリレート繊維、その
ほか強力合成繊維であれば何でもよいが、好ましくはポ
リエステル繊維、アラミド繊維であり、各繊維で織編さ
れた布帛に、ポリウレタン、アクリルゴム、フッ素ゴ
ム、塩化ビニル系樹脂などの樹脂と複合化し、通気性を
上記のように、０．１ｃｃ／ｓｅｃ・ｃｍ2 以下にした
膜材が使用される。The material of the film material may be any of polyester fibers, polyamide fibers, aramid fibers, carbon fibers, polyolefin fibers, polyarylate fibers, and other strong synthetic fibers. It is an aramid fiber, and a fabric woven and knitted with each fiber is combined with a resin such as polyurethane, acrylic rubber, fluororubber, or vinyl chloride resin, and has a gas permeability of 0.1 cc / sec · cm 2 as described above. The following film materials are used.
【００１４】次に、本発明の空気膜構造体１を特徴づけ
る一つの要素であるリブ状ホホヅエ膜４について述べ
る。このリブ状ホホヅエ膜４に関しては、該リブ状ホホ
ヅエ膜４を上面膜２と下面膜３との間に２０〜１００ｃ
ｍピッチで、上面膜２と下面膜３とを上下に連結するよ
うに、その周方向に並行して入れることが好ましい。こ
の際、該リブ状ホホヅエ膜４の材質としては、前記の二
重膜材（下面膜３及び上面膜２）と同一素材とし、該膜
材の総面積に対して、１／４００〜１／２の面積を占め
る開口部を持った連通孔６群を設けるのがよい。このよ
うにすることで、上面膜２と下面膜３との間をリブ状ホ
ホヅエ膜４で上下に仕切ったとしても、該連通孔６群を
介して空気が空気膜構造体１の空気室内を自由に流通で
きるようになる。ここで、該連通孔６について更に述べ
ると、連通孔６群の開口総面積をリブ状ホホヅエ膜４材
の全面積に対して１／２を超えるようにすると、空気膜
構造体１自体の強度が弱くなってその形状が変形し易
く、また１／４００未満では、空気の注入と排出に時間
がかかる。また、その開口形状（連通孔６形状）として
は、好ましくは、円形、楕円形、タマゴ形などの円形状
のものが好ましい。Next, the rib-shaped hollow film 4, which is one of the elements that characterize the air film structure 1 of the present invention, will be described. With respect to the rib-like film 4, the rib-like film 4 is placed between the upper film 2 and the lower film 3 by 20 to 100 cm.
It is preferable to insert the upper surface film 2 and the lower surface film 3 in parallel with each other at a pitch of m so as to connect the upper surface film 2 and the lower surface film 3 vertically. At this time, the material of the rib-shaped hollow film 4 is the same as that of the double film material (the lower surface film 3 and the upper surface film 2), and is 1/400 to 1/400 of the total area of the film material. It is preferable to provide a group of communication holes 6 having openings occupying the area of 2. In this way, even if the upper film 2 and the lower film 3 are vertically separated by the rib-shaped film 4, air flows through the communication holes 6 into the air chamber of the air film structure 1. It can be freely distributed. Here, the communication holes 6 will be further described. If the total area of the openings of the group of the communication holes 6 is set to be more than に 対 し て of the total area of the rib-shaped hose film 4, the strength of the air film structure 1 itself is improved. And the shape is easily deformed, and if it is less than 1/400, it takes time to inject and discharge air. The opening shape (shape of the communication hole 6) is preferably a circular shape such as a circle, an ellipse, and an egg.
【００１５】次に、大きな開口部を設けた空気膜構造体
１は、開口の縁に沿って強風が吹き付けるとその形状が
不安定となって、屋根状立体形状が保持されないと言う
問題を解決するために設けられた防風補強部材８につい
て図２-(a)及び-(b)を参照しながら説明する。なお、防
風補強部材８の形状としては、図２-(b)のように、本体
１の開口部全面を覆い、出入り口を設置したものでもよ
く、この場合において、出入り口形状も特に限定されな
い。Next, the air film structure 1 provided with a large opening has a problem that when a strong wind blows along the edge of the opening, the shape becomes unstable and the roof-like three-dimensional shape is not maintained. The windproof reinforcing member 8 provided for this purpose will be described with reference to FIGS. 2- (a) and-(b). The shape of the windproof reinforcing member 8 may be such that the entire surface of the opening of the main body 1 is covered and an entrance is provided as shown in FIG. 2- (b). In this case, the shape of the entrance is not particularly limited.
【００１６】該図において、Ｈは空気膜構造体１の有効
高さ、ｈは防風補強部材の有効高さをそれぞれ示す。こ
こで、これらのパラメータは、下記式（１）〜（３）を
同時に満たすことが肝要である。 ｈ／Ｈ≦０．９５ …… （１） ｈ≧２（ｍ） …… （２） Ｈ≧２．５（ｍ） …… （３）In the figure, H indicates the effective height of the air film structure 1, and h indicates the effective height of the windproof reinforcing member. Here, it is important that these parameters simultaneously satisfy the following equations (1) to (3). h / H ≦ 0.95 (1) h ≧ 2 (m) (2) H ≧ 2.5 (m) (3)
【００１７】ここで、実用的な防風補強部材８の形状寸
法範囲においては、ｈ／Ｈ≦０．９５が好ましい。何故
ならば、ｈ／Ｈが０．９５を超える場合は、防風補強部
材８による風の流れの阻害が小さくなることと、トラス
構造としての効果がともに減少するため容易に変形、座
屈を生じるからである。この時、更に、ｈ≧２とするこ
とが必要である。何故ならば、ｈが２未満であれば、人
の出入り及び資材等の搬入、搬出の際、邪魔になるため
好ましくないからである。また、Ｈ≧２．５とすること
も必要である。何故ならば、Ｈが２．５未満であれば、
空気膜構造体１の有効スペースが減少するため実用的で
はなくなるからである。なお、防風補強部材８は、本体
１の両側端の開口部に取り付けられる。Here, in a practical range of the shape and dimensions of the windproof reinforcing member 8, h / H ≦ 0.95 is preferable. If h / H is more than 0.95, the hindrance of the wind flow by the windproof reinforcing member 8 is reduced, and the effect as the truss structure is reduced, so that deformation and buckling easily occur. Because. At this time, it is necessary to further satisfy h ≧ 2. This is because if h is less than 2, it is not preferable because it hinders the entry / exit of people and the loading / unloading of materials and the like. It is also necessary to satisfy H ≧ 2.5. Because if H is less than 2.5,
This is because the effective space of the air film structure 1 is reduced so that it is not practical. Note that the windproof reinforcing members 8 are attached to the openings at both side ends of the main body 1.
【００１８】また、防風補強部材８の形状寸法は、本体
１が加圧気体注入後に形成する立体形状の間口形状に合
致していることが望ましい。何故ならば、一方では、一
般に空気膜構造体１は、加圧気体注入により空気室が膨
張すること、及び、膜材等の自重により、立体形状形成
後の形状寸法は、設計寸法と差異が生じるからである。
また、他方では、防風補強部材８の形状寸法と、立体形
状形成後の本体１の間口形状寸法とが合致していなけれ
ば、本体１に屈曲点を有し、美観を損ねたり、更には、
防風補強部材８に応力集中を発生するため強度上好まし
くないからである。It is desirable that the shape and size of the windproof reinforcing member 8 match the three-dimensional frontage formed by the main body 1 after injection of the pressurized gas. On the other hand, on the other hand, the shape and dimensions of the air film structure 1 after the formation of the three-dimensional shape generally differ from the design size due to the expansion of the air chamber due to the injection of pressurized gas and the weight of the film material. This is because it occurs.
On the other hand, if the shape and dimensions of the windproof reinforcing member 8 do not match the frontage dimensions of the main body 1 after the formation of the three-dimensional shape, the main body 1 has a bending point, which impairs aesthetic appearance, and furthermore,
This is because stress concentration occurs in the windproof reinforcing member 8, which is not preferable in terms of strength.
【００１９】なお、係止部材により脱着可能に本体１と
接続する場合には、該係止部材としては、天然ゴム、合
成ゴムなどの弾性を有する部材を使用することが好まし
い。なぜなら、前述のように本体１の立体形状形成後の
形状寸法と、防風補強部材８の形状寸法とを合致させた
場合においても、本体１は風荷重等の外部荷重を受ける
ことにより若干の変形を生じ、前述同様の問題は生じ
る。そのため、変形による応力集中を緩和するような弾
性材料とすることが好ましいのである。When the main body 1 is detachably connected to the main body 1 by an engaging member, it is preferable to use an elastic member such as natural rubber or synthetic rubber as the engaging member. This is because, even when the shape and dimensions of the main body 1 after the formation of the three-dimensional shape are matched with the shape and dimensions of the windproof reinforcing member 8 as described above, the main body 1 is slightly deformed by receiving an external load such as a wind load. And the same problem as described above occurs. Therefore, it is preferable to use an elastic material that relieves stress concentration due to deformation.
【００２０】次に、防風補強部材８の作用と効果につい
て、図３を用いて詳細に説明する。図３の図(ａ)と(ｂ)
は、防風補強部材８を設けない場合の正断面図と側面図
を示し、図(ｃ)と(ｄ)は、防風補強部材８を設けた場合
の正断面図と側面図をそれぞれ示す。Next, the operation and effect of the windproof reinforcing member 8 will be described in detail with reference to FIG. Figures (a) and (b) in FIG.
Shows a front sectional view and a side view when the windproof reinforcing member 8 is not provided, and FIGS. (C) and (d) show a front sectional view and a side view when the windproof reinforcing member 8 is provided, respectively.
【００２１】図ａにおいて、Ｖ１とＶ２とで示した矢印
は本体１に正面から吹く風の流れを模式的に示したもの
である。ここで、本体１の正面から風が吹く場合、本体
１の上面膜２側の空気の流れＶ１と下面膜３側の空気の
流れＶ２とに分流する。この時、本体１には空気流Ｖ１
の作用により揚力が働く。この本体１に作用する揚力
は、本体１の端部を持ち上げるように作用し、この様に
なると、Ｖ１の流れが少なくなるため、本体１に働く揚
力が減少するとともに、本体１がその弾性により元の形
状へ戻ろうとする。すると、Ｖ２が増加して、本体１を
下方へ引き戻す力が働く。In FIG. A, arrows indicated by V1 and V2 schematically show the flow of wind blowing from the front to the main body 1. Here, when the wind blows from the front of the main body 1, the wind is divided into an air flow V <b> 1 on the upper film 2 side of the main body 1 and an air flow V <b> 2 on the lower film 3 side. At this time, the air flow V1
The lift works due to the action of. The lift acting on the main body 1 acts to lift the end of the main body 1. In this case, the flow of V1 is reduced, so that the lift acting on the main body 1 is reduced, and the elasticity of the main body 1 due to its elasticity is reduced. Try to return to the original shape. Then, V2 increases and a force acts to pull back the main body 1 downward.
【００２２】もし、この時、図(ａ)と(ｂ)とに示すよう
に、防風補強部材８が無いと、本体１の端部が振動を繰
り返すことにより、自励的にその振動は成長し、ついに
本体１は破線の形状を経て座屈を生じることになる。At this time, as shown in FIGS. 9A and 9B, if the windproof reinforcing member 8 is not provided, the vibration of the end of the main body 1 repeats, and the vibration grows in a self-excited manner. Finally, the main body 1 will buckle through the shape of the broken line.
【００２３】しかしながら、図(ｃ)と（ｄ）に示すよう
に、防風補強部材８を使用した場合には、防風補強部材
８により、流れＶ２が阻害されるため、Ｖ１による揚力
が安定的に本体１に作用するため、前述のような振動は
生じない。したがって、防風補強部材８を使用すること
により、前述のように本体１に揚力が安定的に働くこ
と、及び図ｄに示すように本体１は実線の形状を保つト
ラス構造となるなるため、その形状は安定的に保つこと
ができる。また、本体１に積雪等の外部荷重が負荷され
た場合も同様に形状を保つことが出来る。However, as shown in FIGS. 3C and 3D, when the windproof reinforcing member 8 is used, the flow V2 is obstructed by the windproof reinforcing member 8, so that the lift by V1 is stably maintained. Since it acts on the main body 1, the above-described vibration does not occur. Therefore, by using the windproof reinforcing member 8, the lift acts stably on the main body 1 as described above, and the main body 1 has a truss structure that maintains the shape of the solid line as shown in FIG. The shape can be kept stable. Also, when an external load such as snow is applied to the main body 1, the shape can be similarly maintained.
【００２４】また、防風補強部材８として、膜材を使用
することにより、軽量化されるため、その取付け等の作
業が容易になる。ここで、膜材に使用する材質として
は、例えばポリエステル繊維、ポリアミド繊維、アラミ
ド繊維、炭素繊維、ポリオレフィン繊維、及びポリアリ
レート繊維の群から選ばれた少なくとも１種の繊維から
なる織編物又は、該織編物の片面または両面にポリウレ
タン、アクリルゴム、ふっ素ゴム、塩化ビニル系樹脂等
をコーティング加工したものを使用することが出来る。The use of a membrane material as the windproof reinforcing member 8 reduces the weight, and thus facilitates the work such as mounting. Here, as the material used for the film material, for example, a woven or knitted fabric made of at least one fiber selected from the group of polyester fiber, polyamide fiber, aramid fiber, carbon fiber, polyolefin fiber, and polyarylate fiber, or One or both sides of a woven or knitted fabric coated with polyurethane, acrylic rubber, fluorine rubber, vinyl chloride resin or the like can be used.
【００２５】なお、防風補強部材８が受ける風荷重を低
減するとともに、採光性を向上させる場合には、網状体
を使用することが望ましい。この場合、網状体の目開き
は風速、防風補強部材８の大きさ等により適宜選択し使
用できる。また、図２の図（ａ）に示すように、本体１
の側面に風が吹いた場合に、本体１がつぶれないように
補強部材２０を防風補強部材８の下端部に一体に固定す
ることが好ましい。なお、このような補強部材２０とし
ては、金属製、樹脂製、或いは木製のパイプやポール等
を挙げることが出来る。In order to reduce the wind load applied to the windproof reinforcing member 8 and to improve the daylighting property, it is desirable to use a net-like body. In this case, the aperture of the mesh body can be appropriately selected and used depending on the wind speed, the size of the windproof reinforcing member 8, and the like. In addition, as shown in FIG.
It is preferable that the reinforcing member 20 is integrally fixed to the lower end of the windproof reinforcing member 8 so that the main body 1 is not crushed when the wind blows on the side surface of the windproof reinforcing member 8. The reinforcing member 20 may be a metal, resin, or wooden pipe or pole.
【００２６】更に、図３の図(ｂ)と(ｄ)とに示すよう
に、本体１の側面に風が吹いた場合の本体１の変形形状
は破線のように、開口部の幅が狭くなる形状を経て座屈
にいたる。しかしながら、補強部材２０が、前記のよう
な変形に対して抵抗になり、トラス構造となるため実線
の形状を保つことが出来る。ここで、トラス構造の効果
をより大きくするためには、防風補強部材８に板状体を
使用することもできる。なお、板状体としては例えば、
金属製、樹脂製、木製の平板、及びパンチングプレート
が使用できる。Further, as shown in FIGS. 3B and 3D, when the wind blows on the side surface of the main body 1, the deformed shape of the main body 1 has a narrow opening as shown by a broken line. It becomes buckled through a shape. However, since the reinforcing member 20 becomes resistant to the above-described deformation and has a truss structure, the shape of the solid line can be maintained. Here, in order to further increase the effect of the truss structure, a plate-like body can be used for the windproof reinforcing member 8. In addition, as a plate-like body, for example,
Metal, resin, wooden flat plates and punching plates can be used.
【００２７】また、本体１への防風補強部材８の固定に
ついては、特に限定することはなく、例えば縫製、融着
により本体１と一体に固定してもよく、外側リブ５又は
下面膜体３などを延長したものとしても良い。しかしな
がら、本体１と防風部材を着脱可能にし、必要に応じ
て、容易に開口を大きくできるような態様とすることが
より好ましい。このようにすることで、微風時等の空気
膜構造体１がその形状を安定的に維持できる場合には取
り外すことができ、採光性を向上させることができる。
また、防風補強部材８が破損した場合には該防風補強部
材８の交換のみでよいため経済性にも優る。このような
着脱自在を具現化するためには、例えばフック、ファス
ナー等の係止部材（図示せず）を予め該防風補強部材８
及び／又は本体１に設けて簡易接続が可能な構造とした
ものや、鳩目孔を防風補強部材８及び本体１に設け、お
互いを紐、ロープ、或いはバンド等で脱着可能とした構
造のものが挙げられる。The fixing of the windproof reinforcing member 8 to the main body 1 is not particularly limited, and may be fixed integrally with the main body 1 by, for example, sewing or fusion. May be extended. However, it is more preferable to make the main body 1 and the windproof member detachable so that the opening can be easily enlarged as necessary. By doing so, the air film structure 1 can be removed when the shape thereof can be stably maintained at the time of a light wind or the like, and the lighting property can be improved.
In addition, when the windproof reinforcing member 8 is damaged, only the windproof reinforcing member 8 needs to be replaced, which is economical. In order to realize such detachability, for example, a locking member (not shown) such as a hook, a fastener or the like is previously provided with the windproof reinforcing member 8.
And / or a structure in which eyelets are provided in the windproof reinforcing member 8 and the body 1 so that they can be detachably attached to each other with a string, a rope, a band, or the like. No.
【００２８】以上に述べた脱着自在に本体１と接続する
係止部材としては、天然ゴム、合成ゴムなどの弾性を有
する部材が使用できる。このとき、その破断伸度が５０
％〜２００％であることが好ましい。何故ならば、５０
％未満であれば、防風補強部材８の形状寸法と立体形状
形成後の本体の間口形状寸法が合致していない場合、前
記の通り、本体１に屈曲点が生じたり、防風補強部材８
に応力集中を生じるからである。他方、２００％を超え
ると、風や積雪等の外部荷重に対して、容易に本体１が
変形するため形状保持性の観点から好ましくない。な
お、破断伸度の測定方法はＪＩＳ Ｌ１０９６ 一般織
物試験方法に従い測定した。As the above-described locking member detachably connected to the main body 1, an elastic member such as natural rubber or synthetic rubber can be used. At this time, the breaking elongation is 50
% To 200%. Because 50
%, When the shape and size of the windproof reinforcing member 8 do not match the frontage size of the main body after the formation of the three-dimensional shape, as described above, a bending point occurs in the main body 1 or the windproof reinforcing member 8
This is because stress concentration occurs in the On the other hand, if it exceeds 200%, the main body 1 is easily deformed by an external load such as wind or snow, which is not preferable from the viewpoint of shape retention. The elongation at break was measured according to JIS L1096 General Textile Test Method.
【００２９】以上に述べたように、本発明の空気膜構造
体は、防風補強部材８を使用することにより、流体力学
的及び材料力学的に安定な構造を採ることができること
を一大特徴とする。As described above, the air film structure of the present invention has a major feature in that the use of the windproof reinforcing member 8 enables the adoption of a structure that is hydrodynamically and materially stable. I do.
【００３０】[0030]
【発明の効果】以上に述べた本発明によれば、風雨は勿
論、降雪時でも積雪荷重による空気膜構造体の倒壊を引
き起こすことなく安定に使用でき、しかも、構成が簡単
かつ軽量なため、設営、解体、運搬等の作業が容易であ
る空気膜構造体を提供できる、という格別顕著な効果を
奏する。According to the present invention described above, the air film structure can be stably used without causing the collapse of the air film structure due to the snow load, not to mention the wind and rain, but also the snowfall, and the structure is simple and lightweight. An extremely remarkable effect is provided that an air film structure that can be easily set up, dismantled, and transported can be provided.
【図１】本発明の空気膜構造体を例示した一部に断面を
含む斜視図である。FIG. 1 is a perspective view, partially including a cross section, illustrating an air film structure of the present invention.
【図２】本発明の空気膜構造体に付設する防風補強部材
を例示した側面図であって、図(a)と図(b)は２つのの実
施態様例を示している。FIG. 2 is a side view illustrating a windproof reinforcing member attached to the air film structure of the present invention, and FIGS. 2 (a) and 2 (b) show two embodiments.
【図３】図(a)と図(b)とは空気膜構造体に防風補強部材
を設けない場合の強風による座屈状況を説明した正断面
図と側面図であり、図(c)と図(d)とは防風補強部材を設
けた場合の座屈状況を説明した正断面図と側面図であ
る。FIGS. 3 (a) and 3 (b) are a front sectional view and a side view illustrating a buckling situation due to a strong wind when a windbreak reinforcing member is not provided in an air film structure, and FIGS. FIG. 3D is a front sectional view and a side view illustrating a buckling situation when a windproof reinforcing member is provided.
１ 空気膜構造体本体 ２ 外側膜体 ３ 内側膜体 ４ リブ状ホホヅエ膜 ６ 開口部 ７ 空気給排気口 ８ 防風補強部材 ２０ 補強部材 DESCRIPTION OF SYMBOLS 1 Air film structure main body 2 Outer film body 3 Inner film body 4 Rib-shaped hoe film 6 Opening 7 Air supply / exhaust port 8 Windproof reinforcement member 20 Reinforcement member
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2E141 AA01 BB01 CC05 DD00 DD01 DD02 DD03 DD06 EE00 EE04 EE07 EE12 EE21 GG04 GG11 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E141 AA01 BB01 CC05 DD00 DD01 DD02 DD03 DD06 EE00 EE04 EE07 EE12 EE21 GG04 GG11
Claims (5)
し、該下面膜と該上面膜をつなぐリブ状ホホヅエ膜群と
により空気室が形成され、かつ該リブ状ホホヅエ膜には
空気が流通自在の連通孔が設けられており、該空気室に
注入された加圧気体により、その両側端部に開口が形成
され、かつ上面膜が屋根状立体形状を有する空気膜構造
体であって、前記の開口の少なくとも上半部には該開口
を塞ぐ防風補強部材が設けられていることを特徴とする
空気膜構造体。1. An air chamber is formed by a lower film and a upper film, and an air chamber is formed by a group of rib-like films connecting the lower film and the upper film, and air is formed in the rib-like film. An air film structure in which a communication hole that is freely circulated is provided, openings are formed at both end portions by pressurized gas injected into the air chamber, and the upper surface film has a three-dimensional roof shape. An air film structure, wherein a windproof reinforcing member for closing the opening is provided in at least an upper half of the opening.
前記防風補強部材が板状体、膜状体、網状体、又はこれ
らの組み合わせによって構成されていることを特徴とす
る空気膜構造体。2. The air film structure according to claim 1, wherein:
The air film structure, wherein the windproof reinforcing member is formed of a plate, a film, a net, or a combination thereof.
体であって、前記防風補強部材の下端部に補強部材を有
することを特徴とする空気膜構造体。3. The air film structure according to claim 1, wherein a reinforcing member is provided at a lower end portion of the windproof reinforcing member.
膜構造体であって、前記防風補強部材の形状が下記要件
を同時に満たすことを特徴とする空気膜構造体。 ｈ／Ｈ≦０．９５ （１） ｈ≧２（ｍ） （２） Ｈ≧２．５（ｍ） （３） ただし、 Ｈ：空気膜構造体の有効高さ（ｍ） ｈ：防風補強部材の配置高さ（ｍ）4. The air film structure according to claim 1, wherein the shape of the windproof reinforcing member satisfies the following requirements at the same time. h / H ≦ 0.95 (1) h ≧ 2 (m) (2) H ≧ 2.5 (m) (3) where H: Effective height of the air film structure (m) h: Windproof reinforcing member Placement height (m)
膜構造体であって、前記防風補強部材が空気膜構造体の
本体に着脱自在に設けられていることを特徴とする空気
膜構造体。5. The air film structure according to claim 1, wherein the windproof reinforcing member is detachably provided on a main body of the air film structure. Air film structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24523098A JP3678588B2 (en) | 1998-08-31 | 1998-08-31 | Air membrane structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24523098A JP3678588B2 (en) | 1998-08-31 | 1998-08-31 | Air membrane structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000073624A true JP2000073624A (en) | 2000-03-07 |
| JP3678588B2 JP3678588B2 (en) | 2005-08-03 |
Family
ID=17130602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24523098A Expired - Fee Related JP3678588B2 (en) | 1998-08-31 | 1998-08-31 | Air membrane structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3678588B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539498A (en) * | 2020-11-27 | 2021-03-23 | 杭州意能电力技术有限公司 | Automatic control interlocking logic for differential pressure of gas film coal yard |
-
1998
- 1998-08-31 JP JP24523098A patent/JP3678588B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539498A (en) * | 2020-11-27 | 2021-03-23 | 杭州意能电力技术有限公司 | Automatic control interlocking logic for differential pressure of gas film coal yard |
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