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JP4079365B2 - Avalanche prevention suspension fence and method of raising avalanche prevention suspension fence - Google Patents

Avalanche prevention suspension fence and method of raising avalanche prevention suspension fence Download PDF

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Publication number
JP4079365B2
JP4079365B2 JP2003150478A JP2003150478A JP4079365B2 JP 4079365 B2 JP4079365 B2 JP 4079365B2 JP 2003150478 A JP2003150478 A JP 2003150478A JP 2003150478 A JP2003150478 A JP 2003150478A JP 4079365 B2 JP4079365 B2 JP 4079365B2
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Prior art keywords
fence
suspension fence
prevention suspension
avalanche
existing
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JP2004353229A (en
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雪夫 後藤
徳光 岸
昌志 佐藤
久志 今野
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株式会社ケイジーエンジニアリング
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Description

【０００１】
【発明の属する技術分野】
本発明は一般に、雪崩予防吊り柵および雪崩予防吊り柵の嵩上げ方法に関する。より詳細には、本発明は、設計積雪深さの見直し等により既設予防吊り柵の高さが不足するようになった場合であっても、既設予防吊り柵を取り換えずに既設予防吊り柵の高さを嵩上げするための雪崩予防吊り柵、及び雪崩予防吊り柵の嵩上げ方法に関する。
【０００２】
【従来の技術】
積雪地においては、冬期間に雪崩が発生するおそれがある。したがって、道路脇の斜面に雪崩予防吊り柵を設置して、雪崩から道路を防護している。雪崩予防吊り柵は、一般的には、図８に示されるように、道路脇の斜面に鋼製の柵を配置し、斜面上方からワイヤで吊るすことによって固定されている。このような雪崩予防吊り柵の高さは、設置個所における設計積雪深さに応じて設定されている。
【０００３】
【発明が解決しようとする課題】
しかしながら、設計積雪深さの見直し等により既設予防吊り柵の高さが不足するようになると、当該既設予防吊り柵では雪崩に対して効果的に対処することができないため、既設予防吊り柵を取り換えなければならないという課題があった。
【０００４】
したがって、本発明は、設計積雪深さの見直し等により既設予防吊り柵の高さが不足するようになった場合であっても、既設の雪崩予防吊り柵を取り換えることなく、予防吊り柵の高さを嵩上げするための雪崩予防吊り柵および雪崩予防吊り柵の嵩上げ方法を提供することを目的としている。
【０００５】
【課題を解決するための手段】
本願請求項１に記載の１スパン用の雪崩予防吊り柵は、互いに平行に配置された２本の柱部材と、前記柱部材の下端を基点として高さＨの個所から前記柱部材の上端まで所定間隔隔てて前記柱部材間に配置された複数本の水平部材と、前記柱部材の各々の下端に配置された回転支承部分と、雪崩予防吊り柵を既設予防吊り柵と一体化させるためのロープとを備え、前記柱部材の間隔が、雪崩予防吊り柵を既設予防吊り柵と一体化させたとき、雪崩予防吊り柵の柱部材が既設予防吊り柵の柱部材の外側又は内側に位置するように選定されており、雪崩予防吊り柵の適所に一端を結び付けた前記ロープを、既設予防吊り柵の柱部材の上端に取り付けられたガイドローラに掛けて他端を引っ張ることにより、雪崩予防吊り柵を回転支承部分を中心として引き上げ、雪崩予防吊り柵を既設予防吊り柵と一体化させるように構成されていることを特徴とするものである。
【０００６】
本願請求項２に記載の２スパン用の雪崩予防吊り柵は、互いに平行に配置された３本の柱部材と、前記柱部材の下端を基点として高さＨの個所から前記柱部材の上端まで所定間隔隔てて前記柱部材間に配置された複数本の水平部材と、前記柱部材の各々の下端に配置された回転支承部分と、雪崩予防吊り柵を既設予防吊り柵と一体化させるためのロープとを備え、前記柱部材の間隔が、雪崩予防吊り柵を既設予防吊り柵と一体化させたとき、雪崩予防吊り柵の左右の柱部材が既設予防吊り柵の左右の柱部材の外側又は内側に位置し、雪崩予防吊り柵の中央の柱部材が既設予防吊り柵の中央の柱部材の左側又は右側に位置するように選定されており、雪崩予防吊り柵の適所に一端を結び付けた前記ロープを、既設予防吊り柵の柱部材の上端に取り付けられたガイドローラに掛けて他端を引っ張ることにより、雪崩予防吊り柵を回転支承部分を中心として引き上げ、雪崩予防吊り柵を既設予防吊り柵と一体化させるように構成されていることを特徴とするものである。
【０００８】
本願請求項３に記載の既設予防吊り柵の高さを嵩上げするための方法は、前記請求項１又は２に記載の雪崩予防吊り柵を準備する段階と、前記雪崩予防吊り柵の各柱部材の下端に設けられた前記回転支承部分の内壁面を前記既設予防吊り柵の最下段の水平部材に引っ掛ける段階と、前記雪崩予防吊り柵の適所に一端が結び付けられたロープを、前記既設予防吊り柵の柱部材と前記雪崩予防吊り柵の柱部材が側面から見て一致するまで、前記既設予防吊り柵の柱部材の上端に取付けられたガイドローラに掛けて引っ張る段階と、前記雪崩予防吊り柵にブレースを取付けるとともに、前記既設予防吊り柵の水平部材と前記雪崩予防吊り柵の柱部材とをＵボルトで連結する段階とを含むことを特徴とするものである。
【０００９】
【発明の実施の形態】
次に図面を参照して、本発明の好ましい実施の形態に係る雪崩予防吊り柵について詳細に説明する。図１は本発明の第１の実施の形態に係る雪崩予防吊り柵の正面図、図２は側面図である。
【００１０】
図１及び図２において全体として参照符号１０で示される本発明の第１の実施の形態に係る雪崩予防吊り柵は、互いに平行に配置された２本の柱部材１２と、柱部材１２の下端を基点として高さＨの個所から柱部材１２の上端まで所定間隔隔てて柱部材１２間に配置された複数本の水平部材１４とを備えている。水平部材１４は好ましくは、円形鋼管で形成されている。なお、柱部材１２間の内幅Ｗは、後述する既設予防吊り柵の柱部材間の外幅Ｗ0 よりも広くなるように選定されており、高さＨは、既設予防吊り柵の全体高さとほぼ等しい高さとなるように選定されている。ここで、外幅とは、左側の柱部材１２の外縁と右側の柱部材１２の外縁との間の距離のことを意味し、内幅とは、左側の柱部材１２の内縁と右側の柱部材１２の内縁との間の距離のことを意味する（図５（ｄ）参照）。
【００１１】
各柱部材１２の下端には、内壁面１６ａが円弧状になった回転支承部分１６が設けられている。なお、内壁面１６ａの径は、後述する既設予防吊り柵の水平部材（図３において破線で図示）を構成する円形鋼管の外径とほぼ等しくなるように選定されている。
【００１２】
次に、図５を参照して、以上のように構成された本発明の第１の実施の形態に係る雪崩予防吊り柵１０を用いて、既設の雪崩予防吊り柵を嵩上げする方法について説明する。
【００１３】
まず、嵩上げしようとする既設予防吊り柵の柱部材の上端に、図４に示されるようなガイドローラ２０を取付ける。次いで、図５（ａ）に示されるように、既設予防吊り柵が設置されている個所の下方の斜面に、雪崩予防吊り柵１０を置き、雪崩予防吊り柵１０の各柱部材１２の下端に設けられた回転支承部分１６の内壁面１６ａを既設予防吊り柵の最下段の水平部材に引っ掛ける。
【００１４】
次いで、ロープの一端を雪崩予防吊り柵１０の適所に結び付けた後、ロープをガイドローラ２０に掛けて、ロープの他端を人力又は（ウィンチ等の）機械力で引っ張る。すると、雪崩予防吊り柵１０は、回転支承部分１６を中心として回転して引き上げられ（図５（ｂ）参照）、ついには既設予防吊り柵の柱部材と雪崩予防吊り柵１０の柱部材１０が側面から見て一致するようになる（図５（ｃ）参照）。
【００１５】
最後に、図５（ｄ）に示されるように、既設予防吊り柵の水平部材と雪崩予防吊り柵１０の柱部材１２とをＵボルト等で連結することによって、既設予防吊り柵と雪崩予防吊り柵１０とを強固に一体化させるとともに、雪崩予防吊り柵１０にブレースを取付け、更にワイヤで斜面に固定する。
【００１６】
図６は、本発明の第２の実施の形態に係る雪崩予防吊り柵を示した正面図である。図６において全体として参照符号２０で示される本発明の第２の実施の形態に係る雪崩予防吊り柵は、柱部材が３本ある２スパンの既設予防吊り柵の嵩上げに用いられる点を除いて、第１の実施の形態に係る雪崩予防吊り柵１０と実質的に同一の構成を有している。
【００１７】
すなわち、雪崩予防吊り柵２０は、互いに平行に配置された３本の柱部材２２と、柱部材２２の下端を基点として高さＨの個所から柱部材２２の上端まで所定間隔隔てて各柱部材２２間に配置された複数本の水平部材２４とを備え、各柱部材２２の下端には、内壁面が円弧状になった回転支承部分２６が設けられている。左側の柱部材２２の内縁と中央の柱部材２２の左縁との間の距離Ｗ1 は、既設予防吊り柵の左側の柱部材と中央の柱部材の間の外幅Ｗ1 ′よりも広くなるように選定されており、中央の柱部材２２の右縁と右側の柱部材２２の内縁との間の距離Ｗ2 は、既設予防吊り柵の中央の柱部材と右側の柱部材の間の内幅Ｗ2 ′よりも広くなるように選定されている（図７参照）。これにより、雪崩予防吊り柵２０を既設予防吊り柵と一体化させたとき、雪崩予防吊り柵２０の左右の柱部材２２が既設予防吊り柵の左右の柱部材の外側に位置し、雪崩予防吊り柵２０の中央の柱部材２２が既設予防吊り柵の中央の柱部材の左側又は右側に位置することになる。
【００１８】
本発明は、以上の発明の実施の形態に限定されることなく、特許請求の範囲に記載された発明の範囲内で、種々の変更が可能であり、それらも本発明の範囲内に包含されるものであることはいうまでもない。
【００１９】
なお、前記第１の実施の形態では、雪崩予防吊り柵１０を既設予防吊り柵と一体化させたとき、雪崩予防吊り柵１０の柱部材１２が既設予防吊り柵の柱部材の外側に位置するように、柱部材１２の間隔が選定されているが、既設予防吊り柵の柱部材の内側に位置するように、柱部材１２の間隔を選定してもよい。
【００２０】
また、前記第２の実施の形態でも、雪崩予防吊り柵２０を既設予防吊り柵と一体化させたとき、雪崩予防吊り柵２０の左右の柱部材２２が既設予防吊り柵の左右の柱部材の外側に位置するように、左右の柱部材２２の間隔が選定されているが、既設予防吊り柵の左右の柱部材の内側に位置するように、左右の柱部材２２の間隔を選定してもよい。
【００２１】
【発明の効果】
本発明により、設計積雪深さの見直し等により既設予防吊り柵の高さが不足するようになった場合であっても、既設予防吊り柵を取り換えることなく、予防吊り柵の高さを容易に嵩上げすることができるので、工事コスト及び労力の低減を図ることが可能となる。
【図面の簡単な説明】
【図１】 本発明の第１の実施の形態に係る雪崩予防吊り柵を示した正面図である。
【図２】 図１の雪崩予防吊り柵の側面図である。
【図３】 図１の雪崩予防吊り柵の柱部材の下端に取付けられる回転支承部分を示した図である。
【図４】 （ａ）は既設予防吊り柵の柱部材の上端に取付けられるガイドローラを示した図、（ｂ）は（ａ）の線４ｂ−４ｂに沿った側面図である。
【図５】 図１の雪崩予防吊り柵を用いて、既設の雪崩予防吊り柵を嵩上げする方法の手順を示した一連の図である。
【図６】 本発明の第２の実施の形態に係る雪崩予防吊り柵を示した正面図である。
【図７】 図６の雪崩予防吊り柵を用いて、既設の雪崩予防吊り柵を嵩上げする状態を示した図である。
【図８】 従来の雪崩予防吊り柵を示した図である。
【符号の説明】
１０、２０ 雪崩予防吊り柵
１２、２２ 柱部材
１４、２４ 水平部材
１６、２６ 回転支承部分
２０ ガイドローラ[0001]
BACKGROUND OF THE INVENTION
The present invention generally relates to an avalanche prevention suspension fence and a method for raising an avalanche prevention suspension fence. More specifically, the present invention relates to the construction of the existing preventive suspension fence without replacing the existing preventive suspension fence even when the height of the existing preventive suspension fence becomes insufficient due to a review of the design snow depth, etc. The present invention relates to an avalanche prevention suspension fence for raising the height and a method for raising an avalanche prevention suspension fence.
[0002]
[Prior art]
In snowy areas, avalanches may occur during the winter. Therefore, an avalanche prevention suspension fence is installed on the slope beside the road to protect the road from the avalanche. As shown in FIG. 8, the avalanche prevention suspension fence is generally fixed by placing a steel fence on a slope beside a road and suspending it with a wire from above the slope. The height of such an avalanche prevention suspension fence is set according to the designed snow depth at the installation location.
[0003]
[Problems to be solved by the invention]
However, if the height of the existing preventive suspension fence becomes insufficient due to revision of the design snow depth, etc., the existing preventive suspension fence cannot effectively cope with avalanches, so the existing preventive suspension fence is replaced. There was a problem that had to be done.
[0004]
Therefore, even if the height of the existing preventive suspension fence becomes insufficient due to a review of the design snow depth, the present invention increases the height of the preventive suspension fence without replacing the existing avalanche prevention suspension fence. An object of the present invention is to provide an avalanche prevention suspension fence for raising the height and a method for raising an avalanche prevention suspension fence.
[0005]
[Means for Solving the Problems]
The 1-span avalanche prevention suspended fence according to claim 1 of the present invention is composed of two pillar members arranged in parallel to each other, and a position of height H from the lower end of the pillar member as a base point to the upper end of the pillar member. For integrating a plurality of horizontal members disposed between the pillar members at a predetermined interval, a rotating support portion disposed at a lower end of each of the pillar members, and an avalanche prevention suspension fence with an existing prevention suspension fence. The avalanche prevention suspension fence is located outside or inside the pillar member of the existing prevention suspension fence when the avalanche prevention suspension fence is integrated with the existing prevention suspension fence. The avalanche prevention suspension fence is hung on the guide roller attached to the upper end of the pillar member of the existing prevention suspension fence, and the other end is pulled. Rotating the fence around the center Pulling Te, and is characterized in that it is configured to avalanche prevention hanging fences so as to be integrated with existing prevention hanging fence.
[0006]
The two-span avalanche prevention suspended fence according to claim 2 of the present invention includes three column members arranged in parallel to each other, and a position having a height H from the lower end of the column member as a base point to the upper end of the column member. For integrating a plurality of horizontal members disposed between the pillar members at a predetermined interval, a rotating support portion disposed at a lower end of each of the pillar members, and an avalanche prevention suspension fence with an existing prevention suspension fence. And when the avalanche prevention suspension fence is integrated with the existing prevention suspension fence, the left and right pillar members of the avalanche prevention suspension fence are outside of the left and right pillar members of the existing prevention suspension fence. It is located on the inside, the central pillar member of the avalanche prevention suspended fence is selected to be located on the left or right side of the central pillar member of the existing preventive suspension fence, and one end is connected to the appropriate place of the avalanche prevention suspended fence Attach the rope to the upper end of the pillar member of the existing preventive suspension fence. Characterized by pulling the other end over the Tagged guide rollers, pulling the avalanche prevention hanging fence around the rotation supporting portion, that the avalanche prevention hanging rail is configured to be integrated with existing prevention hanging fence It is what.
[0008]
The method for raising the height of the existing preventive suspension fence according to claim 3 of the present application includes the steps of preparing the avalanche prevention suspension fence according to claim 1 or 2 and each pillar member of the avalanche prevention suspension fence. A step of hooking an inner wall surface of the rotating support portion provided at a lower end of the rotary support portion to a horizontal member at a lowermost stage of the existing preventive suspension fence, and a rope having one end tied to a proper position of the avalanche prevention suspension fence. A step of hanging on a guide roller attached to an upper end of the pillar member of the existing preventive suspension fence until the pillar member of the fence and the pillar member of the avalanche prevention suspension fence coincide with each other when viewed from the side, and the avalanche prevention suspension fence And a step of connecting a horizontal member of the existing preventive suspension fence and a column member of the avalanche preventive fence with a U-bolt.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an avalanche prevention suspension fence according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of an avalanche prevention suspension fence according to the first embodiment of the present invention, and FIG. 2 is a side view thereof.
[0010]
1 and 2, the avalanche prevention suspension fence according to the first embodiment of the present invention generally indicated by reference numeral 10 includes two column members 12 arranged in parallel to each other, and the lower ends of the column members 12. And a plurality of horizontal members 14 disposed between the pillar members 12 at a predetermined interval from a position having a height H to the upper end of the pillar member 12. The horizontal member 14 is preferably formed of a circular steel pipe. The inner width W between the column members 12 is selected to be wider than the outer width W 0 between the column members of the existing preventive suspension fence described later, and the height H is the overall height of the existing preventive suspension fence. Is selected to be approximately the same height. Here, the outer width means the distance between the outer edge of the left column member 12 and the outer edge of the right column member 12, and the inner width means the inner edge of the left column member 12 and the right column. This means the distance between the inner edge of the member 12 (see FIG. 5D).
[0011]
At the lower end of each column member 12, a rotation support portion 16 having an inner wall surface 16a formed in an arc shape is provided. The diameter of the inner wall surface 16a is selected so as to be substantially equal to the outer diameter of a circular steel pipe constituting a horizontal member (illustrated by a broken line in FIG. 3) of an existing preventive suspension fence described later.
[0012]
Next, a method of raising an existing avalanche prevention suspension fence using the avalanche prevention suspension fence 10 according to the first embodiment of the present invention configured as described above will be described with reference to FIG. .
[0013]
First, the guide roller 20 as shown in FIG. 4 is attached to the upper end of the pillar member of the existing preventive suspension fence to be raised. Next, as shown in FIG. 5 (a), the avalanche prevention suspension fence 10 is placed on the slope below the place where the existing prevention suspension fence is installed, and at the lower end of each column member 12 of the avalanche prevention suspension fence 10. The inner wall surface 16a of the provided rotary support portion 16 is hooked on the lowest horizontal member of the existing preventive suspension fence.
[0014]
Next, after one end of the rope is tied to an appropriate position of the avalanche prevention suspension fence 10, the rope is hung on the guide roller 20, and the other end of the rope is pulled by human power or mechanical force (such as a winch). Then, the avalanche prevention suspension fence 10 is rotated about the rotation support portion 16 and pulled up (see FIG. 5B). Finally, the pillar member of the existing prevention suspension fence and the pillar member 10 of the avalanche prevention suspension fence 10 are provided. It becomes in agreement when viewed from the side (see FIG. 5C).
[0015]
Finally, as shown in FIG. 5 (d), the existing preventive suspension fence and the avalanche prevention suspension are connected by connecting the horizontal member of the existing prevention suspension fence and the column member 12 of the avalanche prevention suspension fence 10 with U bolts or the like. The fence 10 is firmly integrated, and a brace is attached to the avalanche prevention suspension fence 10 and further fixed to the slope with a wire.
[0016]
FIG. 6: is the front view which showed the avalanche prevention suspension fence which concerns on the 2nd Embodiment of this invention. The avalanche prevention suspension fence according to the second embodiment of the present invention indicated by reference numeral 20 as a whole in FIG. 6 is used for raising a two-span existing prevention suspension fence having three pillar members. The avalanche prevention suspension fence 10 according to the first embodiment has substantially the same configuration.
[0017]
That is, the avalanche prevention suspension fence 20 includes three pillar members 22 arranged in parallel to each other, and each pillar member at a predetermined interval from a height H to the upper end of the pillar member 22 with the lower end of the pillar member 22 as a base point. A plurality of horizontal members 24 disposed between the two members 22 are provided, and a lower end of each column member 22 is provided with a rotation support portion 26 whose inner wall surface is arcuate. The distance W 1 between the inner edge of the left column member 22 and the left edge of the center column member 22 is wider than the outer width W 1 ′ between the left column member and the center column member of the existing preventive suspension fence. The distance W 2 between the right edge of the central pillar member 22 and the inner edge of the right pillar member 22 is between the central pillar member and the right pillar member of the existing preventive suspension fence. The inner width W 2 ′ is selected so as to be wider (see FIG. 7). Thereby, when the avalanche prevention suspension fence 20 is integrated with the existing prevention suspension fence 20, the left and right pillar members 22 of the avalanche prevention suspension fence 20 are located outside the left and right pillar members of the existing prevention suspension fence, and the avalanche prevention suspension fence is provided. The column member 22 at the center of the fence 20 is positioned on the left side or the right side of the column member at the center of the existing preventive suspension fence.
[0018]
The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.
[0019]
In the first embodiment, when the avalanche prevention suspension fence 10 is integrated with the existing prevention suspension fence 10, the pillar member 12 of the avalanche prevention suspension fence 10 is positioned outside the pillar member of the existing prevention suspension fence. Thus, although the space | interval of the column member 12 is selected, you may select the space | interval of the column member 12 so that it may be located inside the column member of the existing preventive suspension fence.
[0020]
Also in the second embodiment, when the avalanche prevention suspension fence 20 is integrated with the existing prevention suspension fence 20, the left and right pillar members 22 of the avalanche prevention suspension fence 20 are the left and right pillar members of the existing prevention suspension fence. The interval between the left and right column members 22 is selected so as to be located outside, but the interval between the left and right column members 22 is selected so as to be positioned inside the left and right column members of the existing preventive suspension fence. Good.
[0021]
【The invention's effect】
According to the present invention, even if the height of the existing preventive suspension fence becomes insufficient due to a review of the design snow depth, etc., the height of the preventive suspension fence can be easily increased without replacing the existing preventive suspension fence. Since it can be raised, construction costs and labor can be reduced.
[Brief description of the drawings]
FIG. 1 is a front view showing an avalanche prevention suspension fence according to a first embodiment of the present invention.
FIG. 2 is a side view of the avalanche prevention suspension fence of FIG.
3 is a view showing a rotation support portion attached to a lower end of a pillar member of the avalanche prevention suspension fence of FIG. 1. FIG.
4A is a view showing a guide roller attached to the upper end of a pillar member of an existing preventive suspension fence, and FIG. 4B is a side view taken along line 4b-4b of FIG. 4A.
FIG. 5 is a series of diagrams showing a procedure of a method of raising an existing avalanche prevention suspension fence using the avalanche prevention suspension fence of FIG. 1;
FIG. 6 is a front view showing an avalanche prevention suspension fence according to a second embodiment of the present invention.
7 is a view showing a state in which an existing avalanche prevention suspension fence is raised using the avalanche prevention suspension fence of FIG. 6. FIG.
FIG. 8 is a view showing a conventional avalanche prevention suspension fence.
[Explanation of symbols]
10, 20 Avalanche prevention suspension fences 12, 22 Pillar members 14, 24 Horizontal members 16, 26 Rotating support part 20 Guide roller

Claims (3)

円形鋼管製の水平部材を有する高さＨの１スパンの既設予防吊り柵の高さを嵩上げするのに用いる雪崩予防吊り柵であって、
互いに平行に配置された２本の柱部材と、
前記柱部材の下端を基点として高さＨの個所から前記柱部材の上端まで所定間隔隔てて前記柱部材間に配置された複数本の水平部材と、
前記柱部材の各々の下端に配置された回転支承部分と、
雪崩予防吊り柵を既設予防吊り柵と一体化させるためのロープとを備え、
前記柱部材の間隔が、雪崩予防吊り柵を既設予防吊り柵と一体化させたとき、雪崩予防吊り柵の柱部材が既設予防吊り柵の柱部材の外側又は内側に位置するように選定されており、
雪崩予防吊り柵の適所に一端を結び付けた前記ロープを、既設予防吊り柵の柱部材の上端に取り付けられたガイドローラに掛けて他端を引っ張ることにより、雪崩予防吊り柵を回転支承部分を中心として引き上げ、雪崩予防吊り柵を既設予防吊り柵と一体化させるように構成されていることを特徴とする雪崩予防吊り柵。An avalanche prevention suspended fence used for raising the height of an existing preventive suspension fence with a height of 1 span having a horizontal member made of a circular steel pipe,
Two column members arranged parallel to each other;
A plurality of horizontal members disposed between the column members at a predetermined interval from a position of height H from the lower end of the column member to the upper end of the column member;
A rotation support portion disposed at the lower end of each of the column members ;
A rope for integrating the avalanche prevention suspension fence with the existing prevention suspension fence ,
The interval between the pillar members is selected such that when the avalanche prevention suspension fence is integrated with the existing prevention suspension fence, the pillar member of the avalanche prevention suspension fence is located outside or inside the pillar member of the existing prevention suspension fence. And
The rope with one end tied to the appropriate position of the avalanche prevention suspension fence is hung on the guide roller attached to the upper end of the pillar member of the existing prevention suspension fence, and the other end is pulled, so that the avalanche prevention suspension fence is centered on the rotating support part. An avalanche prevention suspension fence characterized by being configured to pull up and integrate the avalanche prevention suspension fence with the existing prevention suspension fence. 円形鋼管製の水平部材を有する高さＨの２スパンの既設予防吊り柵の高さを嵩上げするのに用いる雪崩予防吊り柵であって、
互いに平行に配置された３本の柱部材と、
前記柱部材の下端を基点として高さＨの個所から前記柱部材の上端まで所定間隔隔てて前記柱部材間に配置された複数本の水平部材と、
前記柱部材の各々の下端に配置された回転支承部分と、
雪崩予防吊り柵を既設予防吊り柵と一体化させるためのロープとを備え、
前記柱部材の間隔が、雪崩予防吊り柵を既設予防吊り柵と一体化させたとき、雪崩予防吊り柵の左右の柱部材が既設予防吊り柵の左右の柱部材の外側又は内側に位置し、雪崩予防吊り柵の中央の柱部材が既設予防吊り柵の中央の柱部材の左側又は右側に位置するように選定されており、
雪崩予防吊り柵の適所に一端を結び付けた前記ロープを、既設予防吊り柵の柱部材の上端に取り付けられたガイドローラに掛けて他端を引っ張ることにより、雪崩予防吊り柵を回転支承部分を中心として引き上げ、雪崩予防吊り柵を既設予防吊り柵と一体化させるように構成されていることを特徴とする雪崩予防吊り柵。An avalanche prevention suspended fence used for raising the height of an existing preventive suspension fence with a height of 2 span having a horizontal member made of a circular steel pipe,
Three column members arranged parallel to each other;
A plurality of horizontal members disposed between the column members at a predetermined interval from a position of height H from the lower end of the column member to the upper end of the column member;
A rotation support portion disposed at the lower end of each of the column members ;
A rope for integrating the avalanche prevention suspension fence with the existing prevention suspension fence ,
When the avalanche prevention suspension fence is integrated with the existing prevention suspension fence, the left and right pillar members of the avalanche prevention suspension fence are located outside or inside the left and right pillar members of the existing prevention suspension fence. The central pillar member of the avalanche prevention suspension fence is selected to be located on the left or right side of the central pillar member of the existing prevention suspension fence,
The rope with one end tied to the appropriate position of the avalanche prevention suspension fence is hung on the guide roller attached to the upper end of the pillar member of the existing prevention suspension fence, and the other end is pulled, so that the avalanche prevention suspension fence is centered on the rotating support part. An avalanche prevention suspension fence characterized by being configured to pull up and integrate the avalanche prevention suspension fence with the existing prevention suspension fence. 円形鋼管製の柱部材を有する高さＨの既設予防吊り柵の高さを嵩上げするための方法であって、
前記請求項１又は２に記載の雪崩予防吊り柵を準備する段階と、
前記雪崩予防吊り柵の各柱部材の下端に設けられた前記回転支承部分の内壁面を前記既設予防吊り柵の最下段の水平部材に引っ掛ける段階と、
前記雪崩予防吊り柵の適所に一端が結び付けられたロープを、前記既設予防吊り柵の柱部材と前記雪崩予防吊り柵の柱部材が側面から見て一致するまで、前記既設予防吊り柵の柱部材の上端に取付けられたガイドローラに掛けて引っ張る段階と、
前記雪崩予防吊り柵にブレースを取付けるとともに、前記既設予防吊り柵の水平部材と前記雪崩予防吊り柵の柱部材とをＵボルトで連結する段階と、
を含むことを特徴とする方法。A method for raising the height of an existing preventive suspension fence with a height H having a column member made of a circular steel pipe,
Preparing an avalanche preventing suspension fence according to claim 1 or 2,
Hooking the inner wall surface of the rotating support portion provided at the lower end of each pillar member of the avalanche prevention suspension fence to the horizontal member at the bottom of the existing prevention suspension fence;
A rope member having one end tied to a proper position of the avalanche prevention suspension fence until the pillar member of the existing prevention suspension fence and the pillar member of the avalanche prevention suspension fence coincide with each other when viewed from the side. And pulling on a guide roller attached to the upper end of the
Attaching a brace to the avalanche prevention suspension fence and connecting a horizontal member of the existing prevention avalanche fence and a pillar member of the avalanche prevention suspension fence with a U bolt;
A method comprising the steps of:
JP2003150478A 2003-05-28 2003-05-28 Avalanche prevention suspension fence and method of raising avalanche prevention suspension fence Expired - Fee Related JP4079365B2 (en)

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