JP2013028910A - Snow protection fence - Google Patents
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- JP2013028910A JP2013028910A JP2011164146A JP2011164146A JP2013028910A JP 2013028910 A JP2013028910 A JP 2013028910A JP 2011164146 A JP2011164146 A JP 2011164146A JP 2011164146 A JP2011164146 A JP 2011164146A JP 2013028910 A JP2013028910 A JP 2013028910A
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Abstract
Description
本発明は、冬季間の積雪地において、吹雪等によって道路上にできる吹き溜りの防止と、ドライバーや歩行者に対して視界を確保し、地吹雪などによる交通障害を防止するために設置される防雪柵に関するものである。 The present invention is installed in a snowy area during the winter to prevent the accumulation of snow on the road due to snowstorms, to ensure visibility for drivers and pedestrians, and to prevent traffic troubles due to snowstorms and the like. It relates to snow fences.
防雪柵には、吹き止め柵や、吹き払い柵がある。
吹き止め柵は風上側で主に吹雪流を吹き止めて堆雪させ、道路に巻き込んでくる吹雪の低減を図るものであり、冬期間の主風向が道路に対して直角〜４５度程度の範囲において効果があることと、道路から少し離して設置されるため、道路の除雪にも対応でき、積雪の深い地域や、道路幅の比較的広い道路の吹雪障害防止に有効である。
Snow fences include a blow-off fence and a blow-off fence.
Blow fences are intended to reduce the snowstorm that winds up on the windward side mainly by blowing off the snowstorm flow, and the main wind direction in the winter period is in the range of about 45 degrees to 45 degrees. It can be used for removing snow on the road and is effective for preventing snowstorm troubles in areas with heavy snow accumulation and roads with relatively wide roads.
従来の吹き止め柵は、一般に総柵高が最大５ｍ前後、そして柵上端１ｍの柵面が風上側３０度に傾斜した、いわゆる忍び返しを有するものもあり、これらは、吹雪を吹き止めて柵高まで堆雪可能となるけれど、それ以上の堆雪高さになると吹雪の捕捉率は急速に低下する。
吹雪の捕捉率は柵風上側に形成される雪丘の高さに影響されるからである。
その結果、柵を越流した吹雪流が道路内へ巻き込み、視界の悪化と吹き溜りを生じさせる欠点を有する。
Some conventional blowing fences generally have a total fence height of around 5m at maximum, and the fence surface with the upper edge of the fence 1m inclined to 30 degrees on the windward side. Although it is possible to accumulate snow, the snowstorm trapping rate decreases rapidly when the snow level is higher than that.
This is because the snowstorm capture rate is affected by the height of the snow hills formed on the windward side of the fence.
As a result, there is a drawback that the snowstorm flow over the fence gets into the road, causing the visibility to deteriorate and the puddle.
それならば、設置地域に適合する堆積量を持つ柵高とすれば問題は解消するけれど、柵をより高くすることは、ドライバーに与える遮蔽感や圧迫感が大きくなり、構築上の材料強度や基礎部が大きくなって費用負担も増大する。 If this is the case, the problem will be solved if the fence height is high enough to fit the installation area, but higher fences will increase the feeling of shielding and pressure applied to the driver, and the material strength and foundation for construction. The department becomes larger and the cost burden increases.
そこで、防雪板を張設した鉛直部と、残りの上部を風下側に湾曲した円弧翼型誘導板部とで構成された吹き止め式防雪柵が提案されている。
柵風上側の吹雪の吹き止めと堆雪は鉛直部、それ以上の吹雪は柵風上側に堆雪させることなく、円弧翼型誘導板部によって道路風下側に吹き払うものとして上記欠点を解消しようとするものがある。
In view of this, there has been proposed a blown-off type snow fence composed of a vertical part in which a snow prevention board is stretched and an arc wing-type induction board part in which the remaining upper part is curved toward the leeward side.
Let's eliminate the above-mentioned drawbacks by blowing off the snowstorm on the windward side of the fence and accumulating the snow on the vertical part, and blowing off the snowstorm on the fenceward side without using the arcuate wing type guide plate There is something to do.
さらに、防雪板の上方及び下方を無孔の遮蔽板によって構成し、中間部を有孔の通風板によって構成し、支柱の上方に連結される整流部の上端に接続して、該整流部より緩やかな傾斜角度をなし且つ互いに平行な整流板を組合せてなる吹上げ整流部を設けたものもある。 Furthermore, the upper and lower sides of the snow protection plate are constituted by non-perforated shielding plates, the middle part is constituted by a perforated ventilation plate, and connected to the upper end of the rectification unit connected to the upper side of the support column. There is also a type provided with a blowing rectification unit formed by combining rectifying plates that form a gentle inclination angle and are parallel to each other.
従来の吹き止め式防雪柵では、柵風上側の堆雪高さが高くなるにつれて、吹雪の捕捉率が低下して柵を越流した吹雪流は、道路内に巻き込み始めてその機能は低下し、柵全体が堆雪によって埋没すると、柵風上側の大部分の吹雪は道路内に進入し大量の吹き溜りが発生する。 In the conventional snowbreak fence, the snowstorm flow that overflowed the fence as the snow accumulation height on the windward side of the fence increased and the snowstorm flow that overflowed the fence began to get caught in the road, its function decreased, When the entire fence is buried by snow accumulation, most of the snowstorm on the windward side of the fence enters the road and a large amount of snowfall occurs.
一方、下部は吹き止めとし、上部は吹き払いとし、柵風上側の堆雪高さを抑制して、上部の吹雪を柵下へ吹き払う目的の特開２００１−２８８７１５号公報の柵においても、風の巻き込みや、弱い風雪への対応、或いは柵に対しての吹雪流入角が４５度未満の道路には充分な効果は期待できなかった。 On the other hand, in the fence of Japanese Patent Application Laid-Open No. 2001-288715, the lower part is blown off, the upper part is blown off, the height of snow accumulation on the upper side of the fence is suppressed, and the upper blowing is blown down to the bottom of the fence. No sufficient effect could be expected on roads with a windfall snowfall angle of less than 45 degrees.
また、実用新案登録第２５１８５４７号公報では、整流部において風速が高まると同時に圧力も高くなって逆流域が発生すること、又、柵前後の気圧差が大きくなって、柵を超えた道路上で風の巻き込みが生じることが指摘されている。
そこで、本発明は風雪の状態に左右されず、常時有効な柵機能を保持し、道路全体の吹雪障害を防止できる高性能の防雪柵を提供せんとするものである。
In addition, in the utility model registration No. 2518547, the wind speed increases at the same time as the wind speed increases in the rectifying section, and a reverse flow region is generated. Also, the pressure difference between the front and rear of the fence increases, and on the road beyond the fence. It has been pointed out that wind entrainment occurs.
Accordingly, the present invention is intended to provide a high-performance snow fence that can maintain an effective fence function at all times and can prevent a snow blowing failure on the entire road, regardless of wind and snow conditions.
本発明に係る請求項１の防雪柵は、支柱の上端部分を風下側に湾曲又は屈曲した曲部とし、立設した支柱間に防雪板を張設した防雪柵において、曲部の風上側に偏向板を、防雪板とに隙間を設けて並設したこと、防雪板及び偏向板は有孔折板としたことを特徴とするものである。 The snow fence according to claim 1 of the present invention is a snow fence having a curved portion bent or bent at the upper end portion of the support column on the leeward side, and a snow protection plate stretched between the upright support columns. The deflecting plate is provided side by side with a clearance from the snow plate, and the snow plate and the deflecting plate are perforated folded plates.
請求項２の防雪柵の発明は、請求項１の防雪柵において、偏向板を、防雪板との隙間が先端へ行くにしたがって狭くなるように並設したことを特徴とするものである。 The invention of the snow fence according to claim 2 is characterized in that, in the snow fence according to claim 1, the deflecting plate is arranged in parallel so that the gap with the snow plate decreases toward the tip.
請求項３の防雪柵の発明は、請求項１又は２の防雪柵において、防雪板は、支柱の下部を無孔折板で、上部を有孔折板で張設したことを特徴とするものである。 The snow fence according to claim 3 is the snow fence according to claim 1 or 2, characterized in that the snow guard plate is stretched by a non-folded folded plate at the lower part of the column and a perforated folded plate at the upper part. It is.
請求項４の防雪柵の発明は、請求項３の防雪柵において、有孔折板を張設するのは、支柱の１／２から１／３の幅の上部としたことを特徴とするものである。 The snow fence according to claim 4 is the snow fence according to claim 3, characterized in that the perforated folded plate is stretched at an upper portion having a width of 1/2 to 1/3 of the column. It is.
請求項５の防雪柵の発明は、請求項１乃至４のいずれかの防雪柵において、有孔折板とした防雪板及び偏向板の遮蔽率を、７０±２０％としたことを特徴とするものである。 The invention of the snow fence according to claim 5 is characterized in that, in the snow fence according to any one of claims 1 to 4, the shielding ratio of the snow shield plate and the deflector plate as a perforated folded plate is 70 ± 20%. Is.
請求項６の防雪柵の発明は、請求項１乃至５のいずれかの防雪柵において、偏向板の傾斜面と曲部の下端部接線との成す角度を０〜９０度、互いの上端部の隙間を５００mm以下、偏向板の縦幅を２５０mm以上としたことを特徴とするものである。 The invention of the snow fence according to claim 6 is the snow fence according to any one of claims 1 to 5, wherein the angle formed between the inclined surface of the deflecting plate and the tangent to the lower end of the curved portion is 0 to 90 degrees, The gap is 500 mm or less and the vertical width of the deflecting plate is 250 mm or more.
請求項１の発明は、支柱の防雪板を有孔折板としたため、風雪の多くは風下側に吹き払らわれ、風雪の圧力を少し通過させて逃がす事により柵前後の気圧差を緩和して、道路上へ巻き込むのを防止し、減風範囲を広げる効果を発揮するものである。
そして、曲部の風上側に偏向板を、防雪板とに隙間を設けて並設したため、曲部に沿って上昇する風雪がノズル効果により、風雪を道路上空遠方へ吹き飛ばす事が可能となり、柵の風下側の減風範囲が広くなる効果を発揮する。
In the invention of claim 1, since the snow-preventing plate of the support is a perforated folded plate, most of the wind and snow is blown away to the leeward side, and the pressure difference between the front and back of the fence is alleviated by allowing the wind and snow to pass through a little. In this way, it is possible to prevent it from being caught on the road and to widen the wind reduction range.
And since the deflecting plate is installed in parallel with the gap on the windward side of the curved part and the snow protection plate, the wind and snow rising along the curved part can blow away the wind and snow far away on the road by the nozzle effect. The effect of widening the wind reduction range on the leeward side.
また、防雪板及び偏向板を共に有孔折板としたため、通過する風雪の圧力を少し逃がす事により逆流域が発生しない効果を得られると共に、柵前後の気圧差を緩和して、柵上空を通過した風が道路上で巻き込むのを防止し、減風範囲を広げる効果を発揮するものである。 In addition, since both the snow protection plate and the deflecting plate are perforated folded plates, it is possible to obtain the effect that a reverse flow area does not occur by slightly releasing the pressure of the passing wind and snow, and to reduce the pressure difference before and after the fence, It prevents the wind that has passed from getting caught on the road and exerts the effect of widening the wind reduction range.
したがって、広幅員道路（高規格道路）にも容易に対応できる防雪柵となり、ドライバーや歩行者に対して視界を確保し、地吹雪などの交通障害から守る事ができる効果が得られる。
また、従来型と同等の効果を得ることが目的であれば、柵の高さをより低くしても充分であるため、コストダウンとなる効果を得られる。
さらに、飛雪を道路上空遠方へ吹き飛ばす事ができるため、柵の風下側には飛雪が堆雪しなくなり、道路の路肩に柵を設置する事ができる効果を得られる。
Therefore, it becomes a snow fence which can easily cope with wide roads (high standard roads), and it is possible to secure the field of view for drivers and pedestrians and to protect against traffic obstacles such as snowstorms.
Further, if the purpose is to obtain the same effect as that of the conventional type, it is sufficient to lower the height of the fence, so that an effect of reducing the cost can be obtained.
Further, since the flying snow can be blown away over the road, the flying snow does not accumulate on the leeward side of the fence, and the fence can be installed on the shoulder of the road.
そして、飛雪を道路の上空遠方へ吹き飛ばせる事により、柵に対しての風向きが直角から１０度程度までの範囲における斜風方向の風雪に対しても防雪効果が働くようになり、冬期間の防雪対策が必要な道路で風雪の流入角に防雪板の角度を合わせることをしなくても、道路に対して直角から１０度までのあらゆる道路に適用できる格別の効果も発揮するようになる。 And by blowing off the snow to the far distance of the road, the snow prevention effect will be effective against the wind and snow in the slant wind direction when the wind direction with respect to the fence ranges from right angle to about 10 degrees. Even if it is not necessary to adjust the angle of the snow protection plate to the inflow angle of wind and snow on the road where snow protection measures are required, it will also show a special effect that can be applied to any road from right angle to 10 degrees to the road .
請求項２の発明は、請求項１の効果に加えて、曲部の風上側に、防雪板との隙間が先端へ行くにしたがって狭くなるように並設したため、通過する風雪が更なるノズル効果により、より上空遠方へ吹き飛ばす事が可能となり、柵の風下側の減風範囲が広くなる効果を発揮する。 In addition to the effect of claim 1, the invention of claim 2 is arranged in parallel on the windward side of the curved portion so that the gap with the snow protection plate becomes narrower as it goes to the tip. By this, it becomes possible to blow away further to the sky, and the effect of widening the wind reduction range on the leeward side of the fence is exhibited.
請求項３の発明は、請求項１及び２の効果に加え、防雪板は、支柱の下部を無孔折板で、上部を有孔折板で張設したため、防雪柵の下部に当たった風雪の圧力を緩和すると共に、柵風上側での吹き止めとなって柵風上側に堆雪させることができ、上部に当たる風雪は風下側に吹き払らわれる効果を発揮する。 According to the invention of claim 3, in addition to the effects of claims 1 and 2, since the snow protection plate is stretched with a non-perforated folded plate at the bottom and a perforated folded plate at the upper portion, The pressure at the top of the fence can be eased and the snow can be accumulated on the windward side of the fence and snow can be accumulated on the windward side of the fence.
請求項４の防雪柵の発明は、請求項３の防雪柵において、有孔折板を張設するのは、支柱の１／２から１／３の幅の上部としたことにより、また、請求項５の防雪柵の発明は、請求項１乃至４のいずれかの防雪柵において、有孔折板とした防雪板及び偏向板の遮蔽率を、７０±２０％としたことにより、柵上空を通過した風が道路上で巻き込むことなく、道路の上空遠方へ吹き飛ばす効果を顕著とするものである。 The snow fence according to claim 4 is the snow fence according to claim 3, wherein the perforated folded plate is stretched by the upper part having a width of 1/2 to 1/3 of the column. The invention of the snow fence according to Item 5 is the snow fence according to any one of claims 1 to 4, wherein the shielding rate of the snow shield plate and the deflector plate made of a perforated folded plate is 70 ± 20%. The effect of blowing the wind that has passed through the road to the far distance without being caught on the road is remarkable.
請求項６の防雪柵の発明は、請求項１乃至５のいずれかの防雪柵において、偏向板の傾斜面と曲部の下端部接線との成す角度を０〜９０度、互いの上端部の隙間を５００mm以下、偏向板の縦幅を２５０mm以上とすることで、顕著なノズル作用を増大させるもので、飛雪を道路の上空遠方へ吹き飛ばす効果を顕著とするものである。 The invention of the snow fence according to claim 6 is the snow fence according to any one of claims 1 to 5, wherein the angle formed between the inclined surface of the deflecting plate and the tangent to the lower end of the curved portion is 0 to 90 degrees, By making the gap 500 mm or less and the vertical width of the deflecting plate 250 mm or more, the nozzle action is remarkably increased, and the effect of blowing snow to the far distance of the road is remarkable.
本発明の実施の形態を、図面に示した一実施の形態に基づいて説明する。
図１は風下側から見た斜視図、図２は側面図である。
Ｈ形鋼よりなる支柱１は、垂直部２と上端部が柵風下側に湾曲した曲部３に構成され、定間隔に立設した支柱１、１間に防雪板４を張り渡してある。
An embodiment of the present invention will be described based on an embodiment shown in the drawings.
FIG. 1 is a perspective view seen from the leeward side, and FIG. 2 is a side view.
The column 1 made of H-shaped steel is composed of a vertical portion 2 and a curved portion 3 whose upper end is curved to the leeward side of the fence, and a snow prevention plate 4 is stretched between the columns 1 and 1 standing at regular intervals.
支柱１間に張り渡す防雪板４は、金属板を折り曲げて凹凸を形成した折曲板とし、当たる風力を減殺させるものである。
また、下部の垂直部２に張設した防雪板４は、無透孔の折曲板４２として当たる風雪を柵風上側で止め、上部に張設した防雪板４には、透孔を穿設した折曲板４１とし、風を少し逃がし逆流域の発生を防ぐと共に、柵面に沿って上昇する風雪を曲部３によって風下側に吹き払うものとしてある。
さらに、図面での明示はないけれど、下部の垂直部２に張設した防雪板４も透孔を穿設した折曲板４２とし、支柱１間の垂直部において、風力の減殺と吹き止め作用を図るものとしても良い。
The snow-prevention plate 4 stretched between the columns 1 is a bent plate formed by bending a metal plate to form unevenness, and reduces the wind force hit.
In addition, the snow protection plate 4 stretched on the lower vertical portion 2 stops the wind and snow hitting as a non-perforated bent plate 42 on the fence windward side, and the snow protection plate 4 stretched on the upper portion has a through hole. The bent plate 41 is used to allow the wind to escape a little to prevent the generation of a reverse flow area, and to blow the wind and snow rising along the fence surface to the leeward side by the curved portion 3.
Further, although not explicitly shown in the drawings, the snow-preventing plate 4 stretched on the lower vertical portion 2 is also a bent plate 42 having a through hole, and wind force is reduced and blown in the vertical portion between the columns 1. It is good also as what aims at.
図１、図２の実施例では、支柱1の道路側には補助支柱５が立設してあり、連結杆６を渡し、冬季以外には二つ折りして視界を開放するように構成してある。
そのため、支柱１、１間に張設する防雪板４も冬季以外には回収できるように、Ｌ形の連結枠板７に数枚或いは三つ山の防雪板４を纏めて一体化した防雪板体８に分割し、支柱１に昇降可能に上下へ連続して張設（機構の図示は省略する。）した構成としてある。
したがって、支柱１の曲部３においては、防雪板４は曲部３に沿った曲面に張設されず、防雪板体８の張設角度で直線的に角度が変わって行く形態となっている。
In the embodiment of FIGS. 1 and 2, an auxiliary support column 5 is erected on the road side of the support column 1 and is connected to a connecting rod 6 so that it can be folded in two except in winter to open the field of view. is there.
For this reason, the snow-preventing plate 4 integrated between several or three snow-preventing plates 4 is integrated with the L-shaped connecting frame plate 7 so that the snow-preventing plate 4 stretched between the columns 1 and 1 can also be collected except during the winter season. The structure is divided into the body 8 and continuously stretched up and down on the column 1 so as to be movable up and down (illustration of the mechanism is omitted).
Therefore, in the curved portion 3 of the support column 1, the snow protection plate 4 is not stretched on the curved surface along the curved portion 3, and the angle changes linearly according to the stretching angle of the snow protection plate body 8. .
勿論、他の昇降可能な機構、又は着脱自在とする機構にすることで、或いは常時固定的に立設して置く柵であれば、個々の防雪板４を支柱１のＨ型鋼フランジ部にボルトナットで直接固定し、上端部の曲部３においては、曲面に沿って防雪板４を張設することで、曲部３の全体が支柱同様の湾曲線を描く形態となるものである。 Of course, if it is a fence that can be moved up and down, or a mechanism that can be detachably attached or is always fixedly installed, the individual snow-prevention plate 4 is bolted to the H-shaped steel flange portion of the column 1. The bent portion 3 at the upper end portion is directly fixed with a nut, and the snowproof plate 4 is stretched along the curved surface, so that the entire bent portion 3 forms a curved line similar to the support column.
また、曲部３と、有孔折板４１を張設した支柱１の上部範囲とが一致していることは要件で無く、支柱１の上端部である上部の一部を曲部３が占めるものであれば良い。
無孔折板４２及び有孔折板４１は、公知の製品又は構成のものを任意に選択して使用すればよい。
Moreover, it is not a requirement that the curved part 3 and the upper range of the support | pillar 1 which stretched the perforated folded plate 41 correspond, and the curved part 3 occupies a part of upper part which is the upper end part of the support | pillar 1. Anything is fine.
As the non-perforated folded plate 42 and the perforated folded plate 41, any known products or components may be arbitrarily selected and used.
支柱１の曲部３において、風上側に、防雪板４と隙間を設けて偏向板９を並設してある。
偏向板９は、曲部３の上端近傍において、防雪板体８の連結枠板７から突設した側壁１０の先部折曲面１１間に偏向板９を渡設して張設し、側壁１０により防雪板４と偏向板９間に隙間が形成される。
また、支柱１の上部に張設する防雪板４と同様の有孔折板４１を使用しても良い。
In the curved portion 3 of the support column 1, a deflecting plate 9 is provided in parallel on the windward side with a snow-proof plate 4 and a gap.
In the vicinity of the upper end of the curved portion 3, the deflecting plate 9 is stretched by extending the deflecting plate 9 between the front bent surfaces 11 of the side walls 10 protruding from the connection frame plate 7 of the snow protection plate body 8. Thus, a gap is formed between the snowproof plate 4 and the deflection plate 9.
Moreover, you may use the perforated folded plate 41 similar to the snow-proof board 4 stretched on the upper part of the support | pillar 1. FIG.
したがって、曲部３において防雪板４と並設した偏向板９及び側壁１０によって周囲を囲まれたノズル状の空間が形成され、上昇して来た風雪及び曲部３に当たる風雪は曲面３に沿って上昇して風下側に吹き払われ、その際に、形成されたノズル状の空間が通過する風雪のガイド作用及びノズル作用をなす。
また、穿設した透孔で風を少し逃がして逆流域の発生を防いで、風雪を道路上空より遠方へ吹き飛ばして、柵の風下側の減風範囲を広くする作用を呈するのである。
Accordingly, a nozzle-like space surrounded by the deflecting plate 9 and the side wall 10 arranged in parallel with the snow-preventing plate 4 is formed in the curved portion 3, and the rising wind snow and the wind snow hitting the curved portion 3 follow the curved surface 3. It rises and is blown off to the leeward side, and at that time, a wind-snow guide action and a nozzle action through which the formed nozzle-like space passes are performed.
In addition, the perforated holes make a little wind escape to prevent the occurrence of a reverse flow area, and blow wind and snow away from the sky above the road, thereby widening the wind reduction range on the lee side of the fence.
図面では、側壁１０により防雪板４と偏向板９が平行に配置し、形成される隙間が一定と成っているけれど、防雪板４との隙間が先端へ行くにしたがって狭くなるように側壁１０を形成することで、通過する風雪へのノズル作用が大きくなって、風雪を道路上空のより遠方へ吹き飛ばす事が可能となり、柵の風下側の減風範囲をより広くする作用を奏する。 In the drawing, the snow plate 4 and the deflection plate 9 are arranged in parallel by the side wall 10 and the formed gap is constant, but the side wall 10 is so narrow that the gap with the snow plate 4 becomes narrower toward the tip. By forming, the nozzle action to the passing wind and snow becomes larger, it becomes possible to blow the wind and snow further away on the road, and the effect of widening the wind reduction range on the lee side of the fence is exhibited.
また、個々の防雪板４を、支柱１のＨ型鋼のフランジ部にボルトナットで直接固定して、上端部の曲部３に沿った曲面に防雪板４を張設する場合は、支柱１との関係では、側壁１０や偏向板９を張設する先部折曲面１１は、支柱１から直接突設した形態となる。
更に、偏向板９は、曲部３の全範囲に対応させことまでは要せず、曲部３の上端近傍において並設すれば足り、また、偏向板９の上端は柵の曲部３より上方へ延伸し、又は同じ高さ、或いは低い位置に設置しても良い（図４）。
In addition, when the individual snow protection plate 4 is directly fixed to the flange portion of the H-shaped steel of the support column 1 with a bolt and nut, and the snow protection plate 4 is stretched on the curved surface along the curved portion 3 of the upper end portion, In this relationship, the front folding surface 11 on which the side wall 10 and the deflecting plate 9 are stretched is directly projected from the support column 1.
Furthermore, the deflection plate 9 does not need to correspond to the entire range of the curved portion 3, and it is sufficient to arrange the deflecting plate 9 in the vicinity of the upper end of the curved portion 3, and the upper end of the deflecting plate 9 is more than the curved portion 3 of the fence. It may be extended upward or installed at the same height or low position (FIG. 4).
図５の解析ソフトによる風速分布の比較表、及び図６の解析ソフトによる再付着点の比較表に示すように、有孔折板４１を張設する範囲は、支柱１の１／２から１／３の幅の上部とするのが好ましい。
また、有孔折板４１とした防雪板４及び偏向板９の遮蔽率を、７０±２０％とすることで、柵上空を通過する風が道路上に巻き込むことを防止でき、道路の上空遠方へ吹き飛ばす効果を顕著に得られる。
As shown in the comparison table of the wind speed distribution by the analysis software in FIG. 5 and the comparison table of the reattachment points by the analysis software in FIG. 6, the range in which the perforated folded plate 41 is stretched is 1/2 to 1 of the column 1. It is preferable that the upper portion has a width of / 3.
In addition, by setting the shielding rate of the snow protection plate 4 and the deflection plate 9 as the perforated folded plate 41 to 70 ± 20%, it is possible to prevent the wind passing over the fence from being caught on the road, and far away on the road The effect of blowing off is remarkably obtained.
さらに、偏向板９の傾斜面と曲部３の下端部接線との成す角度（図３符号θ）を０〜９０度、互いの上端部の隙間を５００mm以下、偏向板９の縦幅を２５０mm以上とすることで、顕著なノズル作用を増大させ、飛雪を道路の上空遠方へ吹き飛ばす効果を顕著とするものである。 Further, the angle (reference numeral θ in FIG. 3) formed by the inclined surface of the deflecting plate 9 and the tangent to the lower end portion of the curved portion 3 is 0 to 90 degrees, the gap between the upper end portions is 500 mm or less, and the vertical width of the deflecting plate 9 is 250 mm. By setting it as the above, the remarkable nozzle effect | action is increased and the effect which blows off a snowfall to the far sky of a road becomes remarkable.
図７は斜風時における風洞可視化実験写真の比較表であり、飛雪を道路の上空遠方へ吹き飛ばせる事により、柵に対しての風向きが直角から１０度程度までの範囲における斜風方向の風雪に対しても防雪効果が働くようになり、冬期間の防雪対策が必要な道路で風雪の流入角に防雪板の角度を合わせることをしなくても、道路に対して直角から１０度までのあらゆる道路に適用できることを示している。 Fig. 7 is a comparison table of wind tunnel visualization experiment photos during a slant wind. By blowing snow to the far distance of the road, the direction of the slant wind direction in the range of the wind direction from the right angle to about 10 degrees is measured. Snow protection is effective against wind and snow, and from the right angle to 10 degrees with respect to the road without adjusting the angle of the snow protection plate to the inflow angle of wind and snow on roads that require snow prevention measures in winter. It can be applied to any road.
以上、本発明を実施の形態を図面に基づき具体的に説明したが、本発明は上記の実施形態に限定されるものではなく、発明の思想を逸脱することない範囲の他の実施の形態にも適用可能である。 The embodiments of the present invention have been specifically described with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and other embodiments can be used without departing from the spirit of the invention. Is also applicable.
１ 支柱
２ 垂直部
３ 曲部
４ 防雪板
５ 補助支柱
６ 連結杆
７ 連結枠板
８ 防雪板体
９ 偏向板
１０ 側壁
１１ 先部折曲面
４１ 有孔折板
４２ 無孔折板
DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Vertical part 3 Curved part 4 Snowproof board 5 Auxiliary support pillar 6 Connection rod 7 Connection frame board 8 Snowproof board body 9 Deflection board 10 Side wall 11 Front part curved surface 41 Perforated folded plate 42 Non-perforated folded plate
Claims (6)
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| JP2011164146A JP5791413B2 (en) | 2011-07-27 | 2011-07-27 | Snow fence |
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| JP2011164146A JP5791413B2 (en) | 2011-07-27 | 2011-07-27 | Snow fence |
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| JP5791413B2 JP5791413B2 (en) | 2015-10-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016183548A (en) * | 2015-03-26 | 2016-10-20 | 理研興業株式会社 | Overflow strengthening type blowing-stopping system snow protection fence |
| CN107747275A (en) * | 2017-11-21 | 2018-03-02 | 湖南科技大学 | A kind of railroad bridge Combined anti-wind barrier |
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| JPH0577310U (en) * | 1992-03-27 | 1993-10-22 | 英夫 安岡 | Snow fence |
| JP2000345518A (en) * | 1999-06-09 | 2000-12-12 | Kawada Industries Inc | Windbreak device-attached vehicle guard fence |
| JP2005232957A (en) * | 2004-01-23 | 2005-09-02 | Tokyo Seiko Co Ltd | Oblique wind coping type snow preventive fence |
| JP3115624U (en) * | 2005-08-09 | 2005-11-10 | 村上 正幸 | Blown snow fence |
| JP3138408U (en) * | 2007-10-19 | 2007-12-27 | 株式会社日本パーツセンター | Protective fence |
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|---|---|---|---|---|
| JPS5961312U (en) * | 1982-10-15 | 1984-04-21 | 安岡 英夫 | Snow fence with current plate |
| JPS63121610U (en) * | 1987-01-27 | 1988-08-08 | ||
| JPH0577310U (en) * | 1992-03-27 | 1993-10-22 | 英夫 安岡 | Snow fence |
| JP2000345518A (en) * | 1999-06-09 | 2000-12-12 | Kawada Industries Inc | Windbreak device-attached vehicle guard fence |
| JP2005232957A (en) * | 2004-01-23 | 2005-09-02 | Tokyo Seiko Co Ltd | Oblique wind coping type snow preventive fence |
| JP3115624U (en) * | 2005-08-09 | 2005-11-10 | 村上 正幸 | Blown snow fence |
| JP3138408U (en) * | 2007-10-19 | 2007-12-27 | 株式会社日本パーツセンター | Protective fence |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016183548A (en) * | 2015-03-26 | 2016-10-20 | 理研興業株式会社 | Overflow strengthening type blowing-stopping system snow protection fence |
| CN107747275A (en) * | 2017-11-21 | 2018-03-02 | 湖南科技大学 | A kind of railroad bridge Combined anti-wind barrier |
| CN107747275B (en) * | 2017-11-21 | 2019-02-22 | 湖南科技大学 | A kind of railroad bridge Combined anti-wind barrier |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5791413B2 (en) | 2015-10-07 |
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