JP3617005B2

JP3617005B2 - Snowfall prevention device

Info

Publication number: JP3617005B2
Application number: JP2002167520A
Authority: JP
Inventors: 敏道小林; 司苫米地
Original assignee: 敏道小林
Priority date: 2002-06-07
Filing date: 2002-06-07
Publication date: 2005-02-02
Anticipated expiration: 2022-06-07
Also published as: JP2004011302A

Description

【０００１】
【発明の属する技術分野】
本発明は、建造物の上縁部分に設置する雪庇発生防止装置に関する。
【０００２】
【従来の技術】
【０００３】
降雪地域では、降雪時に風があると、建造物風下側の上縁部分に屋上の積雪が迫り出してきて雪庇が発生する。この雪庇は、屋上を吹き越す風がその建造物の風下側で風速を落として下方に向かって巻き込む渦となったときに、運ばれてきた雪がその粘着性によって屋上の積雪に付着することにより風下に向かって成長してゆく。大きく成長した雪庇は、自重によって落下するので、通行人に危害を与えたり建造物に損害を与えることがある。
【０００４】
そのような雪庇による危害・損害を防止するための装置として、たとえば、本発明者らの提案した特許第２８８２９８８号公報に記載の雪庇発生防止装置がある。
【０００５】
それは、図５に示すように、建造物屋上の風下側のパラペット１上に、断面直角三角形状の本体２を、垂直板３を該建造物の外側（風下側）に向け、傾斜板４を内側（風上側上方）に向けて沿設するとともに、該本体２の頂部に雪切板５を垂直に起立固着させてなるものである。
この雪庇発生防止装置は傾斜板４によって、該建造物を吹き越す風の向きをスムーズに上向きに変えるとともに、その風速を増加させることにより、建造物の風下側で発生する渦の位置をその壁面から遠くへ離し、雪庇の発生を防止するものである。
【０００６】
【発明が解決しようとする課題】
しかしながら、傾斜板４の全体が積雪６に埋まっている場合、この傾斜板４によって風向をスムーズに上向きに変えることができない。しかも、積雪６の上面から突出した雪切板５が風をせき止めることにより、運ばれてきた雪は、風の流れから離れ、雪切板５の風上側の領域７に徐々に溜まってゆく。そして結局、屋上の積雪の上面８が雪切板５の頂部のところまで上昇することとなるので、この雪切板５の高さの分だけ屋上の積雪量を増やし、建造物への雪荷重の負担を大きくすることとなっていた。
しかも、ほぼ水平となった積雪の上面８に沿って吹く風９は建造物の風下側で下方に巻き込まれ、渦を形成するので、雪庇１０が発生してしまう。
そこで、本発明は、傾斜板が積雪で埋まった場合にも、建造物の雪荷重負担を大きくせず、雪庇を発生させない雪庇発生防止装置を提供することを目的とする。
【０００７】
【課題を解決するための手段】
【０００８】
請求項１記載の本発明雪庇発生防止装置は、傾斜板を風上側上方に向けて取り付けた本体の頂部に雪切板を備えてなる雪庇発生防止装置において、その雪切板ｃが横長のアルミ板を横長中心線に沿って二つ折りにして、その折り目を含む上半部を密接させるとともに、そこに透孔ｄ……を所要の間隔で複数開設して突出部４１とし、下半部を分離させて上記本体ａの頂部１８に嵌合する二股取付部４１’とした断面略逆Ｙ字状で、その二股取付部４１’を、上記本体ａの頂部１８に嵌合乗載するようにしてなる。
【０００９】
請求項２記載の本発明は、上記透孔ｄ……を、横長楕円形状、縦長楕円形状または円形状とした請求項１記載の雪庇発生防止装置である。
【００１０】
請求項３記載の本発明は、雪切板ｃを、本体ａの上記頂部１８に所要の取付手段により交換可能に取り付けてなる請求項１または２記載の雪庇発生防止装置である。
【００１１】
請求項４記載の本発明は、本体ａが、直角三角形状の蓋板１１，１１を左右に立設するとともに、それらの間に、同じく直角三角形状の補強板１２……を複数枚立設し、それら各板１１，１１，１２……それぞれの直角を挟む２辺に形成したフランジに、直角に折曲成形した外装板１３の、該直角を挟んで連続する底板部１４と垂直板部１５を張架・固定することにより、全一体化され、かつ、頂部１８を断面逆Ｖ字状にするとともに、上記各板１１，１１，１２……の斜辺側に開口部１９を形成してなる請求項１，２または３記載の雪庇発生防止装置である。
【００１２】
請求項５記載の本発明は、本体ａが、外周縁にフランジを形成した直角三角形状の蓋板１１，１１を左右に立設するとともに、それらの間に、同じく外周縁にフランジを形成した直角三角形状の補強板１２……を複数枚立設し、それら各板１１，１１，１２……それぞれの直角を挟む２辺の上記フランジに、直角に折曲成形した外装板１３の、該直角を挟んで連続する底板部１４と垂直板部１５を所要の固定手段で張架・固定することにより、全一体化され、かつ、上記底板部１４の前側端に折曲形成した下部起立部１６を、上記各板１１，１１，１２……の斜辺の上記フランジの下側部に、また、上記垂直板部１５の上側端に折曲形成した上部垂下部１７を上記各板１１，１１，１２……の斜辺の上記フランジの上側部に、各々所要の固定手段で張架・固定し、頂部１８を断面逆Ｖ字状とするとともに、上記下部起立部１６と上部垂下部１７との間に横長方形の開口部１９を形成し、この開口部１９に上記各板１１，１１，１２……の斜辺のフランジを臨ませた、断面直角三角形状の請求項１，２または３記載の雪庇発生防止装置である。
【００１３】
請求項６記載の本発明は、あらかじめ一体に組み立てられた本体ａを、該本体ａの高さ、および長手方向に直交する水平方向の位置を、現場の状況に応じて一定範囲内で適宜調整して、補強板１２……のボルト挿通横長孔２０，２０と、柱脚２４の芯板２６のボルト挿通縦長孔２６’，２６’とが交差した箇所に固定用ボルト３７，３７を挿通し、ナットを螺合・緊締することにより、建造物の上縁部分に取り付けるようにしてなる請求項４または５記載の雪庇発生防止装置である。
【００１４】
請求項７記載の本発明は、請求項４，５または６記載の雪庇発生防止装置の複数台を長手方向に列設配置し、それらの互いに隣り合う本体ａの、対向する蓋板１１同士を連結ボルト４５，４５およびナットで緊締し、雪切板ｃ同士の接続部分には、突出部４１の密接させたアルミ板の間に、板状のジョイナー４６を挟み込んで、連結してなる雪庇発生防止装置である。
【００１５】
【発明の実施の形態】
以下、本発明に係る雪庇発生防止装置の一実施形態について図１〜４を参照し詳しく述べる。
【００１６】
ａは、断面直角三角形状のアルミ製の本体で、それは、外周縁にフランジを形成した直角三角形状の蓋板１１，１１を左右に立設するとともに、それらの間に、同じく外周縁にフランジを形成した直角三角形状の補強板１２……を複数枚立設し、それら各板１１，１１，１２……それぞれの直角を挟む２辺の上記フランジに、直角に折曲成形した外装板１３の、該直角を挟んで連続する底板部１４と垂直板部１５を溶接、ビス、リベット等の固定手段で張架・固定し、全一体化してなるものである。
上記底板部１４の前側端には下部起立部１６を折曲形成してあり、それを上記各板１１，１１，１２……の斜辺の上記フランジの下側部に、また、上記垂直板部１５の上側端には、上部垂下部１７を折曲形成してあり、それを上記各板１１，１１，１２……の斜辺の上記フランジの上側部に、各々所要の固定手段で張架・固定している。
これによって、本体ａは、頂部１８を断面逆Ｖ字状とするとともに、上記下部起立部１６と上部垂下部１７との間に横長方形の開口部１９を形成し、この開口部１９に上記各板１１，１１，１２……の斜辺のフランジを臨ませている。
【００１７】
また、上記補強板１２……には、該本体ａを後記する柱脚２４の芯板２６に固定するためのボルト挿通横長孔２０，２０を開設し、上記底板部１４の上記補強板１２……に対応する位置には該芯板２６を下方から挿入するための芯板挿通孔２１……を開設している。
【００１８】
２２は、建造物の上縁部分であって、かつ、風下側のパラペット、２３……は、このパラペット上面に所要間隔をおいて植設されたアンカーボルトである。２４……は、柱脚で、それは、長孔２５’，２５’を開設したベースプレート２５に、ボルト挿通縦長孔２６’，２６’を開設した芯板２６を設立してなるものである。この柱脚２４……は、上記長孔２５’，２５’をアンカーボルト２３，２３に嵌合し、適宜位置の調整をして、ナット２７……を緊締することによってパラペット２２の上面に設立・固定されている。
２９は、笠木で、それは、上記柱脚２４……の芯板２６……を長孔３０……に挿通させて、上記パラペット２２の上面に笠木取付用ホルダー３１によって固定されている。
【００１９】
３２は、上記笠木２９の長孔３０から突出させた上記芯板２６を、中央の窓孔３３に貫通させて、該笠木２９に乗載・固定した柱脚カバーである。この柱脚カバー３２は、その外周壁３４の下辺縁を内方に折曲成形して、下部外周に外周溝３５を形成している。この外周溝３５には、上記笠木２９との間に水が入り込まないようにシーリング材３６を充填している。また、芯板２６……を貫通させた上記窓孔３３の間隙にもシーリング材を充填してあり、柱脚カバー３２内部に水が入り込まないようになっている。
【００２０】
上記本体ａは、建造物の上縁部分に、すなわち、例えば上記パラペット２２上に、垂直板部１５を該建造物の外側（風下側）に向け、開口部１９を該建造物の内側（風上側上方）に向けて取り付けられる。
さらに詳しくは、あらかじめ組み立てた上記本体ａを、その芯板挿通孔２１……を上記柱脚２４……の芯板２６……に上方から嵌合させて下ろし、該本体ａの高さ、および長手方向に直交する水平方向の位置を、現場の状況に応じて一定範囲内で適宜調整する。その後、補強板１２……のボルト挿通横長孔２０，２０と、芯板２６のボルト挿通縦長孔２６’，２６’とが交差する箇所に固定用ボルト３７，３７を挿通し、ナットを螺合・緊締する。
【００２１】
ｂは、平坦面３８の一側に湾曲面３８’を連続させてなる傾斜板である。上記本体ａと、この傾斜板ｂの対応する箇所にはビス挿通孔３９……および４０……を開設している。この傾斜板ｂは、上記ビス挿通孔３９……，４０……にビスを挿通することにより、上記本体ａに、それの開口部１９を塞いで、平坦面３８を風上側上方に向けた傾斜状態で取り付けられる。
【００２２】
この傾斜板ｂは、建造物を吹き越す風の向きを上方へ向けるとともにその風速を速め、該建造物の風下で発生する渦の位置を壁面から離し、雪庇の発生を防ぐもので、その傾斜は、４５°以上とするのが好ましく、特に５５°〜６０°前後とするのが雪庇発生防止に最適である。
【００２３】
ｃは、横長のアルミ板を横長中心線に沿って二つ折りにして、その折り目を含む上半部を密接させるとともに、そこに横長楕円形状の透孔ｄ……を所要の間隔で複数開設して突出部４１とし、下半部を分離させて上記本体ａの頂部１８に嵌合する二股取付部４１’とした断面略逆Ｙ字状の雪切板である。上記透孔ｄ……の形状は横長楕円形状に限られるものではなく、縦長楕円形状や円形状等、任意の形状とすることができる。
この雪切板ｃは、上記二股取付部４１’を上記頂部１８に嵌合乗載させた状態で、所要の取付手段により上記本体ａの頂部１８に交換可能に取り付けられている。
具体的には、この雪切板ｃの二股取付部４１’と上記本体ａの頂部１８のそれぞれ対応する箇所に取付孔４２……と４３……を開設してあり、雪切板ｃは、それら取付孔４２……，４３……にビス４４……を螺合・緊締することによって取り付けられている。
【００２４】
風は、雪切板ｃに開設した上記透孔ｄ……を、風圧を高め、風速を増して通過するので、建造物の風下側に発生する渦の位置を、従来の雪庇発生防止装置による場合よりも遠くに離し、より確実に雪庇発生を防止することができる。
また、透孔ｄ……を開設してあるので、傾斜板ｂの全体が積雪に埋まっている場合であっても、その積雪面から突出した雪切板ｃが風をせき止めることがなく、そこに雪が溜まってしまうことがない。
すなわち、風により運ばれる雪は透孔ｄ……を通過するから、雪切板ｃが積雪により埋まってしまうことが少なくなり、したがって、その分だけ、屋上の積雪量を増加させず、建造物にかかる雪荷重の負担を増加させない。
【００２５】
また、雪切板ｃの突出部４１は板状をなしているので、雪が該雪切板ｃの頂部を超えて積もった場合でも、その積雪が時間の経過とともに自重により嵩を減らす（圧密沈降）のに伴って、該雪切板ｃの外方の余分な雪を切断し、雪庇が成長する前に落下させる。
【００２６】
さらに、雪切板ｃは、その透孔ｄ……を通して反対側が見えるようになっているから、雪庇発生防止装置全体の高さも低く感じられ、建造物の外観を損なうことがないとともに、複数の透孔ｄ……を所要の間隔で設けることにより、装飾としての効果も高く、意匠性に富むものとなる。
【００２７】
上記のように、雪切板ｃは交換可能に取り付けられているので、本体ａを一定の寸法のものに製作しておき、雪切板ｃだけを適宜の大きさのものに交換することにより、設置場所の気象状況や屋根の形状・面積等に応じて全体の高さを簡単に調整できる。すなわち、設置場所にかかわらず、一定の高さに製作しておいた本体ａを使用できるので装置の製作費用が低減される。
また、設置後の気象状況の変化により屋上の積雪が想定した量を超えるおそれがある場合や雪切板ｃが破損した場合等にもその雪切板ｃを交換するだけで雪庇発生防止機能を発揮させることができ、本体ａ自体の交換の必要がないので経済的である。
【００２８】
さらに、本体ａの建造物の上縁部分（パラペット２２）への取付けは、上記のように、開口部１９を、その建造物の内側に向けて行うことができ、その本体ａへの傾斜板ｂと雪切板ｃの取付けも、同様にして、いずれも屋上側から容易に行えるので、建造物の外側に足場を組むことなく設置作業が安全であり、また、設置工事費を削減することができる。
【００２９】
上記雪庇発生防止装置の複数台を、長手方向に列設配置する場合には、図４に示すように、互いに隣り合う本体ａの、対向する蓋板１１同士を連結ボルト４５……およびナットで緊締して接続する。上記本体ａは、内部に補強板１２……を配設しているので十分な強度を持っているが、長手方向に連続して接続することにより、全体としてさらに強度を上げることができる。
また、雪切板ｃ同士の接続部分には、突出部４１の密接させた二重のアルミ板の間に、板状のジョイナー４６を挟み込んで接続する。これによって、雪切板ｃ同士のずれを防ぎ、見映えよく仕上げることができる。
【００３０】
【発明の効果】
以上述べたところから明らかなように、請求項１および２記載の本発明雪庇発生防止装置によれば次の効果を奏する。
【００３１】
雪切板に透孔を所要の間隔で複数開設したので、風は、その透孔を風圧を高め、風速を増して通過する。これによって、建造物の風下側に発生する渦の位置を、従来の雪庇発生防止装置によるよりも遠くに離し、したがって確実に雪庇発生を防止することができる。
【００３２】
請求項３記載の本発明は、雪切板が交換可能に取り付けられているので、本体を一定の寸法のものに製作しておき、雪切板だけを適宜の大きさのものに交換することにより、設置場所の気象状況や屋根の形状・面積等に応じて全体の高さを簡単に調整できる。すなわち、設置場所にかかわらず、一定の高さに製作しておいた本体を使用できるので装置の製作費用が低減される。
さらに、設置後の気象状況の変化により屋上の積雪が想定した量を超えるおそれがある場合や雪切板が破損した場合等にも雪切板の交換だけ行えばよく、本体自体の交換の必要がないので経済的である。
【００３３】
請求項４および５記載の本発明雪庇発生防止装置は、本体が補強板を備えているから十分な強度を有する。
【００３４】
請求項６記載の本発明雪庇発生防止装置は、本体があらかじめ一体に組み立てられているので簡単に取り付けることができる。また、芯板のボルト挿通縦長孔と、補強板のボルト挿通横長孔とにより、本体の位置を簡単に調整して固定することができる。
【００３５】
請求項７記載の本発明雪庇発生防止装置は、互いに隣り合う本体の、対向する蓋板同士をボルト・ナットで緊締して接続するとともに、雪切板同士の接続部分には、突出部の密接させたアルミ板の間に、ジョイナーを挟み込んで接続しているので、強度が高く、しかも見映えがよい。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る雪庇発生防止装置の斜視図である。
【図２】同上のＸ−Ｘ線拡大断面図である。
【図３】同上の分解斜視図である。
【図４】上記雪庇発生防止装置を長手方向に列設配置する状態を示した斜視図である。
【図５】従来の雪庇発生防止装置の断面図である。
【符号の説明】
ａ本体
ｂ傾斜板
ｃ雪切板
ｄ透孔
１１蓋板
１２補強板
１３外装板
１４底板部
１５垂直板部
１６下部起立部
１７上部垂下部
１８頂部
１９開口部
２０ボルト挿通横長孔
２４柱脚
２６芯板
２６’ ボルト挿通縦長孔
３７固定用ボルト
４１突出部
４１’ 二股取付部
４５連結ボルト
４６ジョイナー[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for preventing the occurrence of a snowfall installed at an upper edge portion of a building.
[0002]
[Prior art]
[0003]
In a snowfall area, if there is a wind during snowfall, the snow on the roof will come out to the upper edge of the leeward side of the building, and a snowfall will occur. This snow leopard is created when the wind blown over the roof turns into a vortex that winds down on the lee side of the building and winds downward, and the carried snow adheres to the snow on the roof due to its stickiness. Grows toward the leeward. Largely grown snow caskets fall by their own weight, which can harm passersby and damage buildings.
[0004]
As a device for preventing such damage and damage caused by a snowfall, for example, there is a snowfall prevention device described in Japanese Patent No. 2888288 proposed by the present inventors.
[0005]
As shown in FIG. 5, the main body 2 having a right-angled triangular cross section is placed on the leeward parapet 1 on the roof of the building, the vertical plate 3 is directed to the outside (leeward side) of the building, and the inclined plate 4 is placed. Along with the inner side (upwardly upward), a snow-cut plate 5 is vertically fixed to the top of the main body 2.
This apparatus for preventing the generation of snow squirts changes the direction of the wind blowing over the building smoothly by the inclined plate 4 and increases the speed of the wind so that the position of the vortex generated on the lee side of the building is changed to the wall surface. It is far away from the snow and prevents the occurrence of snow storm.
[0006]
[Problems to be solved by the invention]
However, when the entire inclined plate 4 is buried in the snow 6, the inclined plate 4 cannot smoothly change the wind direction upward. Moreover, when the snow-cutting plate 5 protruding from the upper surface of the snow cover 6 blocks the wind, the carried snow leaves the wind flow and gradually accumulates in the region 7 on the windward side of the snow-cutting plate 5. Eventually, the top surface 8 of the snow on the roof rises to the top of the snow plate 5, so the amount of snow on the roof is increased by the height of the snow plate 5 and the snow load on the building is increased. It was supposed to increase the burden of.
In addition, the wind 9 blowing along the substantially horizontal upper surface 8 of the snow is drawn downward on the leeward side of the building and forms a vortex, so that a snowfall 10 is generated.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an apparatus for preventing the occurrence of a snowfall that does not increase the load of the snow load on the building and does not generate a snowfall even when the inclined plate is buried with snow.
[0007]
[Means for Solving the Problems]
[0008]
According to a first aspect of the present invention, there is provided a snowfall prevention device according to the first aspect of the present invention, in which the snowcut plate c is a horizontally long aluminum plate. The plate is folded in two along the horizontally long center line, and the upper half including the fold is brought into close contact therewith, and a plurality of through holes d... The bifurcated mounting portion 41 ′ is separated into a bifurcated mounting portion 41 ′ which is fitted to the top portion 18 of the main body a, and the bifurcated mounting portion 41 ′ is fitted and mounted on the top portion 18 of the main body a. It becomes.
[0009]
According to a second aspect of the invention, the through hole d ......, a horizontally long elliptical shape, cornice prevention device according to claim 1, wherein the vertically long elliptical shape or a circular shape.
[0010]
A third aspect of the present invention is the snow pail occurrence preventing apparatus according to the first or second aspect , wherein the snow cutting plate c is attached to the top portion 18 of the main body a in a replaceable manner by a required attachment means.
[0011]
In the present invention according to claim 4 , the main body a has right-angled triangular lid plates 11 and 11 erected on the left and right sides, and a plurality of right-angled triangular reinforcing plates 12. Each of the plates 11, 11, 12... Has a bottom plate portion 14 and a vertical plate portion that are continuous at the right angle of the exterior plate 13 that is bent at right angles to the flanges formed on two sides of the right angle. 15 is stretched and fixed so that it is fully integrated, and the top portion 18 has an inverted V-shaped cross section, and an opening 19 is formed on the oblique side of each of the plates 11, 11, 12. The snow scum occurrence prevention device according to claim 1, 2 or 3 .
[0012]
In the present invention according to claim 5 , the main body a is provided with right and left triangular lid plates 11 and 11 each having a flange formed on the outer peripheral edge thereof, and a flange is also formed on the outer peripheral edge therebetween. A plurality of right-angled triangular reinforcing plates 12... Are erected, and each of the plates 11, 11, 12... A lower standing part formed by bending and forming the bottom plate part 14 and the vertical plate part 15 which are continuous across the right angle by being stretched and fixed by a required fixing means and being bent at the front end of the bottom plate part 14. 16 is formed on the lower side of the flange on the oblique side of each of the plates 11, 11, 12..., And the upper hanging portion 17 is bent at the upper end of the vertical plate 15. , 12... Are fixed to the upper part of the flange on the hypotenuse. It is stretched and fixed in steps, and the top portion 18 has an inverted V-shaped cross section, and a horizontal rectangular opening portion 19 is formed between the lower standing portion 16 and the upper hanging portion 17. 4. The apparatus for preventing snow scum from occurring according to claim 1, 2 or 3 , which has a right-angled triangular cross section facing the flange of the hypotenuse of each plate 11, 11, 12 .
[0013]
According to the present invention of claim 6 , the main body a assembled in advance is adjusted as appropriate within a certain range in accordance with the height of the main body a and the position in the horizontal direction perpendicular to the longitudinal direction. Then, the fixing bolts 37, 37 are inserted through the portions where the bolt insertion horizontal long holes 20, 20 of the reinforcing plate 12 and the bolt insertion vertical long holes 26 ', 26' of the column base 24 intersect. 6. The apparatus for preventing snow sag occurrence according to claim 4 or 5, wherein the device is attached to the upper edge portion of the building by screwing and tightening the nut.
[0014]
A seventh aspect of the present invention is the arrangement of a plurality of the snowfall prevention devices according to the fourth, fifth or sixth aspect in the longitudinal direction, and the opposing cover plates 11 of the main bodies a adjacent to each other. A device for preventing the formation of a snow skein which is joined by sandwiching a plate-like joiner 46 between the aluminum plates in close contact with the protruding portions 41 at the connecting portions between the snow cutting plates c and tightening them with connecting bolts 45 and 45 and nuts. It is.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the snow scum occurrence prevention device according to the present invention will be described in detail with reference to FIGS.
[0016]
a is an aluminum main body having a right-angled triangular cross section, which has right-angled triangular lid plates 11 and 11 having flanges formed on the outer peripheral edge, and a flange on the outer peripheral edge between them. A plurality of right-angled triangular reinforcing plates 12... Are erected, and each of the plates 11, 11, 12... The bottom plate portion 14 and the vertical plate portion 15 that are continuous across the right angle are stretched and fixed by fixing means such as welding, screws, rivets or the like, and are all integrated.
A lower upright portion 16 is bent at the front end of the bottom plate portion 14, and is formed on the lower side of the flange on the oblique side of each of the plates 11, 11, 12... And the vertical plate portion. An upper hanging portion 17 is bent at the upper end of 15, and is stretched on the upper portion of the flange on the oblique side of each of the plates 11, 11, 12. It is fixed.
As a result, the main body a has a top portion 18 having an inverted V-shaped cross section, and a horizontal rectangular opening portion 19 is formed between the lower standing portion 16 and the upper hanging portion 17. The flanges on the hypotenuses of the plates 11, 11, 12,.
[0017]
Further, the reinforcing plate 12 is provided with bolt insertion lateral long holes 20 and 20 for fixing the main body a to the core plate 26 of the column base 24 to be described later, and the reinforcing plate 12 of the bottom plate portion 14 is provided. Are provided with core plate insertion holes 21... For inserting the core plate 26 from below.
[0018]
Reference numeral 22 denotes an upper edge portion of the building and the leeward side parapet, 23... Are anchor bolts planted on the upper surface of the parapet with a predetermined interval. 24... Is a column base, which is formed by establishing a core plate 26 having bolt insertion longitudinally long holes 26 ′, 26 ′ on a base plate 25 having elongated holes 25 ′, 25 ′. The column bases 24... Are established on the upper surface of the parapet 22 by fitting the long holes 25 ′ and 25 ′ to the anchor bolts 23, 23, adjusting the positions as appropriate, and tightening the nuts 27.・ It is fixed.
Reference numeral 29 denotes a headboard, which is fixed to the upper surface of the parapet 22 by a headboard mounting holder 31 through the core plate 26 of the column base 24.
[0019]
Reference numeral 32 denotes a column base cover in which the core plate 26 protruded from the long hole 30 of the headboard 29 is passed through the central window hole 33 and mounted on and fixed to the headboard 29. The column base cover 32 is formed by bending the lower edge of the outer peripheral wall 34 inward to form an outer peripheral groove 35 on the lower outer periphery. The outer circumferential groove 35 is filled with a sealing material 36 so that water does not enter between the headboard 29. Further, the gap between the window holes 33 through which the core plates 26 are passed is filled with a sealing material so that water does not enter the column base cover 32.
[0020]
The main body a is directed to the upper edge of the building, that is, for example, on the parapet 22, with the vertical plate portion 15 facing the outside (leeward side) of the building and the opening 19 inside the building (windward). (Upper upper side).
More specifically, the main body a assembled in advance is lowered by fitting the core plate insertion hole 21... Into the core plate 26 of the column base 24. The position in the horizontal direction perpendicular to the longitudinal direction is appropriately adjusted within a certain range according to the situation at the site. Thereafter, fixing bolts 37 and 37 are inserted into the portions where the bolt insertion horizontal long holes 20 and 20 of the reinforcing plate 12 and the bolt insertion vertical long holes 26 'and 26' of the core plate 26 intersect, and the nuts are screwed together.・ Tighten.
[0021]
b is an inclined plate having a curved surface 38 ′ continuous with one side of the flat surface 38. Screw insertion holes 39... And 40... Are opened at corresponding portions of the main body a and the inclined plate b. The inclined plate b is inclined by inserting screws into the screw insertion holes 39..., 40. Installed in a state.
[0022]
This inclined plate b directs the direction of the wind blowing over the building upwards and increases the speed of the wind so that the position of the vortex generated in the lee of the building is separated from the wall surface to prevent the occurrence of a snowfall. Is preferably 45 ° or more, and particularly preferably around 55 ° to 60 ° is the most suitable for preventing the occurrence of snowfall.
[0023]
c. Fold a horizontally long aluminum plate along the center line of the horizontally long shape, close the upper half including the fold, and open a plurality of horizontally long elliptical holes d ... at the required intervals. The projecting portion 41 is a snow-cut plate having a substantially inverted Y-shaped cross section that is a bifurcated mounting portion 41 ′ that is separated from the lower half portion and fits into the top portion 18 of the main body a. The shape of the through hole d is not limited to a horizontally long elliptical shape, but may be any shape such as a vertically long elliptical shape or a circular shape.
This snow-cut plate c is replaceably attached to the top portion 18 of the main body a by a required attachment means in a state where the bifurcated attachment portion 41 ′ is fitted and mounted on the top portion 18.
Specifically, mounting holes 42... And 43... Are opened at corresponding positions on the bifurcated mounting portion 41 ′ of the snow cutting plate c and the top portion 18 of the main body a. The mounting holes 42... 43 are attached by screwing and tightening screws 44.
[0024]
Since the wind passes through the above-mentioned through holes d... Opened in the snow cut plate c, increasing the wind pressure and increasing the wind speed, the position of the vortex generated on the leeward side of the building is determined by the conventional snow leopard generation prevention device. It is possible to prevent the generation of a snowfall more reliably by moving away from the case.
Further, since the through hole d is opened, even if the entire inclined plate b is buried in the snow, the snow cutting plate c protruding from the snow surface does not block the wind. Snow never accumulates.
That is, since the snow carried by the wind passes through the through holes d..., The snow cut plate c is less likely to be buried by the snow, and accordingly, the amount of snow on the roof is not increased by that much, and the building is increased. Do not increase the burden of snow load on
[0025]
In addition, since the protruding portion 41 of the snow cut plate c has a plate shape, even when snow accumulates beyond the top of the snow cut plate c, the accumulated snow reduces its bulk with time (consolidation sedimentation). ), The excess snow on the outside of the snow cut plate c is cut and dropped before the snow ridge grows.
[0026]
Further, since the opposite side of the snow cutting plate c can be seen through the through hole d..., The overall height of the snow scum occurrence prevention device is felt low, and the appearance of the building is not impaired. By providing the through holes d... At a required interval, the effect as a decoration is high and the design is rich.
[0027]
As described above, since the snow-cutting plate c is attached so as to be replaceable, the main body a is manufactured to a certain size, and only the snow-cutting plate c is replaced with an appropriate size. The total height can be easily adjusted according to the weather conditions at the installation location and the shape and area of the roof. That is, the manufacturing cost of the apparatus can be reduced because the main body a manufactured at a certain height can be used regardless of the installation location.
Also, when there is a risk that the amount of snow on the roof may exceed the expected amount due to changes in the weather conditions after installation, or when the snow-cutting plate c is damaged, the function to prevent the occurrence of snow scum can be achieved by simply replacing the snow-cutting plate c. This is economical because the main body a itself does not need to be replaced.
[0028]
Further, the attachment of the main body a to the upper edge portion (parapet 22) of the building can be performed with the opening 19 facing the inside of the building, as described above, and the inclined plate to the main body a. b and snow-cutter c can be installed in the same way from the roof side, so installation work is safe without building a scaffold outside the building, and installation costs are reduced. Can do.
[0029]
In the case where a plurality of the above-described devices for preventing snow scum are arranged in the longitudinal direction, as shown in FIG. 4, the opposing cover plates 11 of the adjacent main bodies a are connected to each other with connecting bolts 45 and nuts. Tighten the connection. The main body a has a sufficient strength because the reinforcing plates 12 are disposed inside, but the strength can be further increased as a whole by continuously connecting in the longitudinal direction.
In addition, a plate-like joiner 46 is sandwiched and connected between the connection portions of the snow-cut plates c between the double aluminum plates in which the protruding portions 41 are in close contact. As a result, the snow cut plates c can be prevented from being displaced and finished with a good appearance.
[0030]
【The invention's effect】
As is apparent from the above description, the snow scum occurrence prevention device according to the first and second aspects of the present invention has the following effects.
[0031]
Since a plurality of through holes are provided in the snow-cut plate at a required interval, the wind passes through the through holes with increasing wind pressure and increasing wind speed. Thus, the position of the vortex generated on the leeward side of the building is separated further than that by the conventional snow squirrel prevention device, and therefore the snow squirt can be surely prevented.
[0032]
According to the third aspect of the present invention, since the snow-cutting plate is attached so as to be replaceable, the main body is manufactured to have a certain size, and only the snow-cutting plate is replaced with an appropriate size. Thus, the overall height can be easily adjusted according to the weather conditions of the installation location, the shape and area of the roof, and the like. That is, the manufacturing cost of the apparatus is reduced because the main body manufactured at a certain height can be used regardless of the installation location.
Furthermore, if there is a risk that the amount of snow on the rooftop may exceed the expected amount due to changes in the weather conditions after installation, or if the snowboard is damaged, it is only necessary to replace the snowboard, and the body itself needs to be replaced. It is economical because there is no.
[0033]
According to the fourth and fifth aspects of the present invention, the main body of the present invention is provided with a reinforcing plate, so that it has sufficient strength.
[0034]
According to the sixth aspect of the present invention, the apparatus for preventing snow scum occurrence can be easily attached because the main body is assembled in advance. Further, the position of the main body can be easily adjusted and fixed by the bolt insertion vertical elongated hole of the core plate and the bolt insertion lateral elongated hole of the reinforcing plate.
[0035]
According to a seventh aspect of the present invention of the present invention, the apparatus for preventing occurrence of snow scum is formed by connecting the opposing cover plates of the main bodies adjacent to each other with bolts and nuts. Since a joiner is sandwiched and connected between the aluminum plates, the strength is high and the appearance is good.
[Brief description of the drawings]
FIG. 1 is a perspective view of an apparatus for preventing snow scum occurrence according to an embodiment of the present invention.
FIG. 2 is an enlarged sectional view taken along the line XX of the above.
FIG. 3 is an exploded perspective view of the above.
FIG. 4 is a perspective view showing a state in which the snow scum occurrence prevention devices are arranged and arranged in the longitudinal direction.
FIG. 5 is a cross-sectional view of a conventional snow leopard prevention device.
[Explanation of symbols]
a body b inclined plate c snow cutting plate d through-hole 11 lid plate 12 reinforcing plate 13 exterior plate 14 bottom plate portion 15 vertical plate portion 16 lower standing portion 17 upper hanging portion 18 top portion 19 opening portion 20 bolt insertion horizontal long hole 24 column base 26 Core plate 26 'Bolt insertion vertically long hole 37 Fixing bolt 41 Protruding portion 41' Forked mounting portion 45 Connecting bolt 46 Joiner

Claims

In the snow squirrel prevention device comprising a snow cut plate on the top of the main body with the inclined plate facing upward on the windward side, the snow cut plate folds the horizontally long aluminum plate along the horizontally long center line, A cross section in which the upper half including the crease is brought into close contact with each other, and a plurality of through holes are provided at a predetermined interval to form a projecting portion, and the lower half is separated to fit into the top of the main body. An apparatus for preventing the occurrence of a snow pail having a substantially inverted Y shape, wherein the bifurcated mounting portion is fitted on the top of the main body.

Said through hole is horizontally long elliptical shape, cornice prevention apparatus according to claim 1, characterized in that the longitudinally long elliptical shape or a circular shape.

Snow Setsuban, cornice prevention device according to claim 1 or 2, characterized by comprising attached interchangeably with the required attachment means to the top of the body.

The main body has a right-angled triangular lid plate standing on the left and right, and a plurality of right-angled triangular reinforcing plates are erected between them, and flanges formed on two sides sandwiching the right angle of each plate Further, the bottom plate portion and the vertical plate portion that are continuous with the right angle sandwiched between the bottom plate portion and the vertical plate portion of the exterior plate that is bent at a right angle are stretched and fixed, and the top portion has an inverted V-shaped cross section. An apparatus for preventing the occurrence of snow pail according to claim 1, 2 or 3 , wherein an opening is formed on the hypotenuse side of each plate.

The body has a right triangle-shaped lid plate with a flange formed on the outer peripheral edge, and a plurality of right-angled triangular reinforcement plates with a flange formed on the outer peripheral edge between them. The bottom plate portion and the vertical plate portion of the exterior plate bent at right angles are stretched and fixed to the two flanges sandwiching the right angle of each plate with the required fixing means. The lower upright portion that is fully integrated and bent at the front side end of the bottom plate portion is folded at the lower side portion of the flange on the oblique side of each plate and at the upper end of the vertical plate portion. The bent upper part is suspended and fixed to the upper part of the flange on the oblique side of each plate by required fixing means, and the top part has an inverted V-shaped cross section, and the lower standing part and the upper part are suspended. A horizontal rectangular opening is formed between the opening and each of the above openings. Of to face the oblique sides of the flange, cornice prevention device according to claim 1, 2 or 3, wherein a is of like cross-section a right-angled triangle.

Adjust the height of the main body and the horizontal position orthogonal to the longitudinal direction as appropriate within a certain range according to the situation at the site. The bolts on the column base of the column base intersect with the vertically long holes, and the fixing bolts are inserted into the upper edge of the building by screwing and tightening the nuts. The apparatus for preventing the occurrence of snowfall as claimed in claim 4 or 5 .

A plurality of snow leopard occurrence prevention devices according to claim 4, 5 or 6 are arranged in a row in the longitudinal direction, and the opposing cover plates of the mutually adjacent main bodies are fastened with connecting bolts and nuts, An apparatus for preventing the occurrence of a snow skein, characterized in that a plate-like joiner is sandwiched between and connected to each other at a connecting portion between aluminum plates with closely projecting portions.