JP2012052404A

JP2012052404A - Guard fence

Info

Publication number: JP2012052404A
Application number: JP2010267672A
Authority: JP
Inventors: Sachio Nakamura; 佐智夫中村; Takeharu Namigata; 武晴波形; Masashi Abe; 雅詩安部
Original assignee: Nihon Samicon Co Ltd
Current assignee: Nihon Samicon Co Ltd
Priority date: 2010-08-06
Filing date: 2010-11-30
Publication date: 2012-03-15
Anticipated expiration: 2030-11-30
Also published as: JP5589807B2

Abstract

PROBLEM TO BE SOLVED: To provide a guard fence capable of preventing the passing of falling rocks in a column lower stage.SOLUTION: In the guard fence including three or more columns 2A at prescribed intervals on left and right and horizontal rope materials in multiple stages between the columns 2A, since the horizontal rope materials 7 of the lower stage are fixed to the columns 2A, the horizontal rope materials 7 of the lower stage are prevented from being turned up and letting falling rocks pass through. Also, since the column 2A in the middle is provided with a rope material 22 for fixation, the rope material 22 for fixation is attached to the middle of the horizontal rope materials 7 of the lower stage, and both rope materials 22 and 7 are fixed by a plurality of clips 23 disposed at intervals, the middle of the horizontal rope materials 7 is fixed to the column 2A in the middle through the rope material 22 for fixation. The interval of the horizontal rope materials 7 of the lower stage is set to be narrower than the interval of the horizontal rope materials vertically adjacent on the upper stage side.

Description

本発明は、雪崩・落石等における防護柵に関する。 The present invention relates to a protective fence for avalanches, falling rocks and the like.

従来、この種の防護柵として、地上に間隔を置き建て込んだ端末パイプ支柱及び中間パイプ支柱に複数段のケーブルとともに金網を張設したものや、適宜の間隔を置き建て込んだＨ型鋼の端末支柱及び中間支柱と、これら支柱間に張設した複数段のケーブル及び金網とを備えた防護柵（例えば特許文献１）が知られている。 Conventionally, as this kind of protective fence, terminal pipe struts built on the ground at intervals and intermediate pipe struts with wire mesh stretched together with multiple stages of cables, and H-shaped steel terminals built at appropriate intervals 2. Description of the Related Art A protective fence (for example, Patent Document 1) including a column and an intermediate column, and a plurality of cables and wire nets stretched between the columns is known.

また、ロープ材を保持する保持解除装置を備え、この保持解除装置は、常時または積雪の雪圧のような長期間にわたって作用する比較的小さい横力に対しては、中間ロープ材を中間支柱に保持した状態を維持し、かつ落石が衝突した時のような雪圧より大きい横力が作用した場合には中間ロープ材の保持を解除して中間ロープ材を落石等の衝突物の進入側と反対側に向けた大きな移動を許容する防護柵（例えば特許文献２）がある。 In addition, a holding release device for holding the rope material is provided, and this holding release device is used for the intermediate rope material as an intermediate strut for a relatively small lateral force that acts constantly or for a long time such as snow pressure of snow. When the holding force is maintained and a lateral force greater than snow pressure is applied, such as when a falling rock collides, the holding of the intermediate rope material is released and the intermediate rope material is moved away from the collision object such as falling rock. There is a protective fence (for example, Patent Document 2) that allows a large movement toward the opposite side.

また、支柱間に設ける横ロープ材を把持し、該横ロープ材に加わる張力を横ロープ材の摩擦摺動により吸収するロープ用緩衝具（例えば特許文献３）が提案されており、この緩衝具はＵボルトを備え、このＵボルトを連結する連結部を、前記支柱に設けている。 Further, a rope shock absorber (for example, Patent Document 3) that holds a horizontal rope material provided between struts and absorbs the tension applied to the horizontal rope material by frictional sliding of the horizontal rope material has been proposed. Has a U-bolt, and a connecting portion for connecting the U-bolt is provided on the support column.

特開平７−１９７４２３号公報JP-A-7-197423 特開２００７−０７７６７２号公報Japanese Patent Laid-Open No. 2007-077772 特開２００３−３１３８２８号公報JP 2003-313828 A

上記のように支柱間にロープ材を複数段に設け、前記ロープ材の両端を端末支柱に固定し、中間支柱においてはスライドを許容する防護柵では、下方に落石を受けると、最下段のロープ材が捲れあがったりして落石が通過する虞がある。 As described above, the rope material is provided in multiple stages between the struts, and both ends of the rope material are fixed to the terminal struts. There is a risk that the fallen stones will pass due to the material rolling up.

また、中間支柱にロープ用緩衝具により横ロープ材を連結するものでも、横ロープ材が緩衝具に摩擦摺動すると、横ロープ材が撓むため、同様に落石が通過する虞がある。 Moreover, even if the horizontal rope member is connected to the intermediate strut by the rope shock absorber, when the horizontal rope member frictionally slides on the shock absorber, the horizontal rope material is bent, and there is a possibility that the falling rocks may similarly pass.

そこで、本発明は上述した問題点に鑑み、支柱下段における落石の通過を防止することができる防護柵を提供することを目的とする。 In view of the above-described problems, an object of the present invention is to provide a protective fence capable of preventing the falling rocks from passing through the lower stage of the support column.

上記目的を達成するために、請求項１に係る発明は、左右に所定の間隔で３本以上の支柱を設け、前記支柱間に横ロープ材を多段に設けた防護柵において、下段の前記横ロープ材を前記支柱のうち３本以上の支柱に固定したことを特徴とする。 In order to achieve the above object, the invention according to claim 1 is a protective fence in which three or more struts are provided at predetermined intervals on the left and right sides, and a horizontal rope member is provided in multiple stages between the struts. The rope material is fixed to three or more struts among the struts.

また、請求項２に係る発明は、下段の前記横ロープ材を前記各支柱に固定したことを特徴とする。 The invention according to claim 2 is characterized in that the lower side rope member is fixed to each of the columns.

また、請求項３に係る発明は、中間の前記支柱に固定用ロープ材を設け、この固定用ロープ材に前記下段の横ロープ材の途中を固定したことを特徴とする。 The invention according to claim 3 is characterized in that a fixing rope member is provided on the intermediate strut, and a middle portion of the lower horizontal rope member is fixed to the fixing rope member.

また、請求項４に係る発明は、中間の支柱に連結部を設け、この連結部の左右に前記固定用ロープ材をそれぞれ連結したことを特徴とする。 The invention according to claim 4 is characterized in that a connecting portion is provided in an intermediate strut, and the fixing rope members are connected to the left and right of the connecting portion, respectively.

また、請求項５に係る発明は、前記横ロープ材を前記支柱間ごとに分割した分割横ロープ材を形成し、前記分割横ロープ材の端部を前記支柱に固定したことを特徴とする。 Moreover, the invention which concerns on Claim 5 formed the division | segmentation horizontal rope material which divided | segmented the said horizontal rope material for every said support | pillar, and fixed the edge part of the said division | segmentation horizontal rope material to the said support | pillar.

また、請求項６に係る発明は、前記分割横ロープ材の端部を位置調整手段により前記支柱に固定したことを特徴とする。 The invention according to claim 6 is characterized in that an end of the divided horizontal rope member is fixed to the support column by a position adjusting means.

また、請求項７に係る発明は、前記分割横ロープ材の端部を連結具により前記支柱に固定し、前記支柱両側の前記連結具を連結ロープ材により連結したことを特徴とする。 The invention according to claim 7 is characterized in that an end portion of the divided horizontal rope member is fixed to the column by a connector, and the connectors on both sides of the column are connected by a connecting rope member.

また、請求項８に係る発明は、前記分割横ロープ材の端部を連結具により前記支柱に固定し、前記支柱一側の前記連結具と前記支柱とを連結ロープ材により連結したことを特徴とする。 Moreover, the invention which concerns on Claim 8 fixed the edge part of the said division | segmentation horizontal rope material to the said support | pillar with a connection tool, and connected the said connection tool and the said support | pillar of the said one support | pillar side with the connection rope material. And

本発明の請求項１の構成によれば、下段の横ロープ材を３本以上の支柱に固定することにより、落石時に下段の横ロープ材が捲れ上がって落石が通過することを防止できる。 According to the configuration of the first aspect of the present invention, by fixing the lower horizontal rope member to three or more columns, it is possible to prevent the lower horizontal rope member from rolling up and falling rocks at the time of falling rock.

また、本発明の請求項２の構成によれば、下段の横ロープ材を各支柱に固定することにより、落石時に下段の横ロープ材が捲れ上がって落石が通過することを防止できる。 Moreover, according to the structure of Claim 2 of this invention, by fixing the lower horizontal rope material to each support | pillar, it can prevent that a lower horizontal rope material rolls up at the time of a rock fall, and a rock fall passes.

また、本発明の請求項３の構成によれば、固定用ロープ材を介して横ロープ材の途中を中間支柱に固定することができ、横ロープ材を分割せずに中間支柱に固定することができる。 Moreover, according to the structure of Claim 3 of this invention, the middle of a horizontal rope material can be fixed to an intermediate support | pillar via a fixing rope material, and it fixes to an intermediate support | pillar without dividing a horizontal rope material. Can do.

また、本発明の請求項４の構成によれば、左右の固定用ロープ材に横ロープ材の途中を連結して中間支柱に固定することができる。 Moreover, according to the structure of Claim 4 of this invention, the middle of a horizontal rope material can be connected to the right and left fixing rope material, and it can fix to an intermediate support | pillar.

また、本発明の請求項５の構成によれば、分割横ロープ材を支柱間毎に固定することができる。 Moreover, according to the structure of Claim 5 of this invention, a division | segmentation horizontal rope material can be fixed for every support | pillar.

また、本発明の請求項６の構成によれば、端部の位置を調整して分割横ロープ材を所定の張力で張設することができる。 Moreover, according to the structure of Claim 6 of this invention, the position of an edge part can be adjusted and the division | segmentation horizontal rope material can be tensioned by predetermined tension.

また、本発明の請求項７の構成によれば、連結具の取付部分などの破損による部材の飛散および落石の通過を防止することができる。 Moreover, according to the structure of Claim 7 of this invention, scattering of the member by the damage of the attachment part of a coupling tool, etc. and the passage of falling rocks can be prevented.

また、本発明の請求項８の構成によれば、連結具の取付部分などの破損による部材の飛散および落石の通過を防止することができる。 Moreover, according to the structure of Claim 8 of this invention, the scattering of the member by the damage of the attachment part of a coupling tool, etc. and the passage of falling rocks can be prevented.

本実施例の実施例１を示す防護柵の側面図である。It is a side view of the protection fence which shows Example 1 of a present Example. 同上、防護柵の正面図である。It is a front view of a protection fence same as the above. 同上、中間支柱の平断面図である。FIG. 3 is a plan sectional view of the intermediate support column. 同上、挟持具の分解正面図である。It is an exploded front view of a clamping tool same as the above. 同上、端末支柱の正面図である。It is a front view of a terminal support | pillar same as the above. 同上、端末支柱の平断面図である。It is a plane sectional view of a terminal support | pillar same as the above. 同上、衝撃吸収装置の要部の平面図である。It is a top view of the principal part of an impact-absorbing device same as the above. 本実施例の実施例２を示す中間支柱の断面図である。It is sectional drawing of the intermediate | middle support | pillar which shows Example 2 of a present Example. 同上、連結部の要部の正面図である。It is a front view of the principal part of a connection part same as the above. 本実施例の実施例３を示す防護柵の正面図である。It is a front view of the protection fence which shows Example 3 of a present Example. 同上、防護柵の平面図である。It is a top view of a protection fence same as the above. 同上、中間支柱の縦断面図である。It is a longitudinal cross-sectional view of an intermediate | middle support | pillar same as the above. 同上、中間支柱の平断面図である。FIG. 3 is a plan sectional view of the intermediate support column. 同上、端末支柱の縦断面図である。It is a longitudinal cross-sectional view of a terminal support | pillar same as the above. 同上、端末支柱の平断面図である。It is a plane sectional view of a terminal support | pillar same as the above. 本実施例の実施例４を示す防護柵の説明正面図である。It is a description front view of the protection fence which shows Example 4 of a present Example. 同上、下段の横ロープ材に５箇所の固定箇所を設けた防護柵の説明正面図である。It is a description front view of the protection fence which provided the five fixing | fixed location in the lower horizontal rope material same as the above. 同上、下段の横ロープ材に３箇所の固定箇所を設けた防護柵の説明正面図である。It is a description front view of the protection fence which provided the 3 fixed location in the horizontal rope material of the lower stage same as the above. 本実施例の実施例５を示す中間支柱の縦断面図である。It is a longitudinal cross-sectional view of the intermediate | middle support | pillar which shows Example 5 of a present Example. 同上、中間支柱の平断面図である。FIG. 3 is a plan sectional view of the intermediate support column. 同上、取付体を示し、図２１（Ａ）は取付体の側面図、図２１（Ｂ）は一部切欠き平面図である。FIG. 21A is a side view of the mounting body and FIG. 21B is a partially cutaway plan view. 同上、連結ロープ材の正面図である。It is a front view of a connection rope material same as the above. 同上、端末支柱の縦断面図である。It is a longitudinal cross-sectional view of a terminal support | pillar same as the above. 同上、端末支柱の平断面図である。It is a plane sectional view of a terminal support | pillar same as the above. 同上、連結ロープ材の斜視図である。It is a perspective view of a connection rope material same as the above.

以下、図面を参照して、本発明の防護柵の実施例１について説明する。 Hereinafter, Embodiment 1 of the guard fence of the present invention will be described with reference to the drawings.

図１〜図７に示すように、同図に示すように、衝撃吸収柵である落石防護柵は、設定場所である斜面下部の地面１に複数の支柱２，２Ａ，２Ａ，２を立設する。尚、端末支柱２，２の間に複数の中間支柱２Ａ，２Ａが配置されている。前記支柱２，２Ａは、Ｈ型鋼，コンクリート柱，鋼管あるいはコンクリート充填鋼管などからなり、この例では鋼管を用い、その下端を前記地面１に建て込んで固定している。 As shown in FIG. 1 to FIG. 7, as shown in FIG. 1, the rockfall protection fence that is an impact absorbing fence is provided with a plurality of support columns 2, 2 A, 2 A, and 2 standing on the ground 1 at the lower part of the slope that is a setting place. To do. A plurality of intermediate struts 2A and 2A are arranged between the terminal struts 2 and 2. The struts 2 and 2A are made of H-shaped steel, concrete columns, steel pipes or concrete-filled steel pipes. In this example, steel pipes are used and their lower ends are built into the ground 1 and fixed.

前記支柱２，２Ａ，２Ａ，２間には横ロープ材３，３が上下段に設けられている。また、支柱２，２Ａ，２Ａ，２の間は金網９により遮蔽されている。また、金網９は結合コイルなどの結合材により横ロープ材３，７に結合されている。また、横ロープ材３，７を縦方向の間隔保持材10にそれぞれ係止し、この間隔保持材10により落石が衝突した場合でも、上下のロープ材の間隔が開いて落石が通過しないようになっている。尚、支柱２，２Ａ，２Ａ，２は上記のように下部を地中に建て込んで固定してもよいし、コンクリート基礎等に固定してもよいし、下部を斜面などに位置固定すると共に、山側と谷側の控えロープ材により固定してもよい。また、中間支柱２Ａには、前記ロープ材３を係止する係止部４が設けられ、前記係止部４は、横ロープ材３を係止する係止用フックなどにより構成され、横ロープ材３の長さ方向の移動を許容する。 Between the said support | pillars 2, 2A, 2A, 2, the horizontal rope materials 3 and 3 are provided in the up-and-down stage. Also, the space between the supports 2, 2A, 2A, 2 is shielded by the wire mesh 9. Further, the wire mesh 9 is coupled to the horizontal rope members 3 and 7 by a coupling material such as a coupling coil. Moreover, even if the horizontal rope members 3 and 7 are respectively locked to the vertical interval holding member 10 and the falling rock collides with the interval holding member 10, the interval between the upper and lower rope members is widened so that the falling rocks do not pass. It has become. The columns 2, 2A, 2A, 2 may be fixed with the lower part built into the ground as described above, or may be fixed to a concrete foundation, etc. Alternatively, it may be fixed by a rope material on the mountain side and the valley side. Further, the intermediate strut 2A is provided with a locking portion 4 for locking the rope material 3, and the locking portion 4 is constituted by a hook for locking the horizontal rope material 3, and the like. The material 3 is allowed to move in the length direction.

前記横ロープ材３は、その両端を前記端末支柱２に連結し、その途中を前記中間の支柱２Ａに横方向移動可能に係止している。具体的には、前記横ロープ材３の端部３Ｔに連結具５により横杆６を連結し、この横杆６を衝撃吸収装置11により前記端末支柱２に連結している。図５〜図７に示すように、前記衝撃吸収装置11は、鋼管などからなるリング材12と、このリング材12を外周両側から挟むように配置される載荷部材たる載荷板13，13と、それら載荷板13，支柱２，リング材12及び載荷板13に挿通する前記横杆６と、この横杆６に設ける端末定着具たるナット14とを備え、前記横杆６にはナット14を螺合する雄ねじ部が形成されている。尚、前記載荷板13，13のリング材12の外周に当接する側の面が、載荷面13Ｍ，13Ｍであり、前記載荷面13Ｍは、前記リング材12の長さ方向の幅とほぼ同一の幅を有し、又は大きな幅を有し、一方、リング材12の長さ方向の幅Ｗは、該リング材12の直径Ｄ寸法より小さい。また、前記リング材12はその中心軸を縦方向に向けているから、上下にスペースを取らずに配置することができる。また、前記端末支柱２内には前記横杆６を挿通する管材15が設けられ、この管材15には鋼管などが用いられ、その管材15の端部を溶接などにより端末支柱２に固着している。 Both ends of the horizontal rope member 3 are connected to the terminal column 2, and the middle is locked to the intermediate column 2A so as to be movable in the lateral direction. Specifically, a horizontal bar 6 is connected to the end 3T of the horizontal rope member 3 by a connector 5, and the horizontal bar 6 is connected to the terminal column 2 by an impact absorbing device 11. As shown in FIG. 5 to FIG. 7, the impact absorbing device 11 includes a ring material 12 made of a steel pipe and the like, and loading plates 13 and 13 as loading members arranged so as to sandwich the ring material 12 from both sides of the outer periphery. The horizontal plate 6 inserted through the loading plate 13, the support column 2, the ring material 12 and the loading plate 13 and a nut 14 as a terminal fixing device provided on the horizontal plate 6 are provided. A mating male screw portion is formed. The surfaces of the load plates 13 and 13 that are in contact with the outer periphery of the ring material 12 are the load surfaces 13M and 13M, and the load surface 13M is substantially the same as the width of the ring material 12 in the length direction. The ring material 12 has a width or a large width. On the other hand, the width W in the length direction of the ring material 12 is smaller than the diameter D of the ring material 12. Further, since the center axis of the ring material 12 is directed in the vertical direction, the ring material 12 can be arranged without taking up and down space. Further, a pipe 15 for inserting the horizontal rod 6 is provided in the terminal column 2, and a steel pipe or the like is used for the tube 15, and the end of the tube 15 is fixed to the terminal column 2 by welding or the like. Yes.

そして、横ロープ材３に引張力が発生し、ナット14が支柱２側に移動すると、載荷面13Ｍ，13Ｍによりリング材12が押し潰され、これにより衝撃エネルギーを吸収し、対向する内面が当接するまでリング材12が潰れた後は、横ロープ材３が伸びることにより衝撃エネルギーを吸収することができる。 Then, when a tensile force is generated in the lateral rope member 3 and the nut 14 moves to the support column 2 side, the ring member 12 is crushed by the loading surfaces 13M and 13M, thereby absorbing the impact energy and the opposing inner surface is hit. After the ring material 12 is crushed until it comes into contact, impact energy can be absorbed by the lateral rope material 3 extending.

前記支柱２，２Ａ，２Ａ，２の下段には、横ロープ材７が２段に設けられ、前記横ロープ材７の両端は端末支柱２，２に固定されている。図１に示したように、下段の前記横ロープ材７，７の間隔Ｋは、上段側で上下に隣合う前記横ロープ材３，３の間隔Ｋ１より狭く設定されている（Ｋ＜Ｋ１）。また、前記横ロープ材７の上部に位置する２段の前記横ロープ材３，３の間隔Ｋ２と上下に隣合う前記横ロープ材３，７の間隔Ｋ３は略等しく、且つ前記間隔Ｋ１より狭く、前記間隔Ｋより広く設定されている（Ｋ＜Ｋ２＝Ｋ３＜Ｋ１）。さらに、最下段の横ロープ材７は、前記間隔Ｋより狭い間隔で地面１と近接して配置されている。 Two horizontal rope members 7 are provided below the support columns 2, 2 A, 2 A, 2, and both ends of the horizontal rope material 7 are fixed to the terminal support columns 2, 2. As shown in FIG. 1, the interval K between the horizontal rope members 7 and 7 in the lower stage is set to be narrower than the interval K1 between the horizontal rope members 3 and 3 adjacent to each other on the upper stage side (K <K1). . Further, the interval K2 between the two horizontal rope members 3 and 3 positioned on the upper side of the horizontal rope member 7 and the interval K3 between the horizontal rope members 3 and 7 adjacent in the vertical direction are substantially equal and narrower than the interval K1. , Wider than the interval K (K <K2 = K3 <K1). Further, the lowermost horizontal rope member 7 is arranged close to the ground 1 at an interval narrower than the interval K.

次に、前記中間支柱２Ａにおける前記横ロープ材７の固定構造について説明する。図３に示すように、前記中間支柱の前部に連結部21を設け、この連結部21に固定用ロープ材22の略中央を固定し、この固定用ロープ材22の両側を前記横ロープ材７の途中に固定し、この固定に用いる挟持具は、図４に示すように、間隔をおいて設けた複数のクリップ23が用いられる。尚、横ロープ材７を固定用ロープ材22の略全長に添わせ、両者を複数のクリップ23により挟着固定している。前記クリップ23は、開口部を有するＵボルト23Ａと、このＵボルト23Ａの両端を挿通する本体23Ｂと、前記Ｕボルト23Ａの両端に螺合するナット23Ｃを備え、前記Ｕボルト23Ａ内に前記ロープ材７，22を挿入し、前記Ｕボルト23Ａの両端を本体23Ｂの挿通孔23Ｄに挿通し、ナット23Ｃを締めることにより、前記ロープ材７，22をＵボルト23Ａと本体23Ｂにより挟着固定する。この場合、複数のクリップ23を用いて、現場で簡便に横ロープ材７の途中を中間支柱２Ａに固定することができる。 Next, the fixing structure of the horizontal rope member 7 in the intermediate strut 2A will be described. As shown in FIG. 3, a connecting portion 21 is provided at the front portion of the intermediate strut, and the approximate center of the fixing rope material 22 is fixed to the connecting portion 21, and both sides of the fixing rope material 22 are connected to the horizontal rope material. As shown in FIG. 4, a plurality of clips 23 provided at intervals are used as a holding tool that is fixed in the middle of 7. The horizontal rope member 7 is made to follow the substantially entire length of the fixing rope member 22, and both are clamped and fixed by a plurality of clips 23. The clip 23 includes a U bolt 23A having an opening, a main body 23B that is inserted through both ends of the U bolt 23A, and nuts 23C that are screwed into both ends of the U bolt 23A. The materials 7 and 22 are inserted, both ends of the U bolt 23A are inserted into the insertion holes 23D of the main body 23B, and the nut 23C is tightened, whereby the rope materials 7 and 22 are clamped and fixed by the U bolt 23A and the main body 23B. . In this case, using the plurality of clips 23, the middle of the horizontal rope member 7 can be easily fixed to the intermediate strut 2A at the site.

このように本実施例では、請求項１に対応して、左右に所定の間隔で３本以上の支柱２，２Ａ，２を設け、支柱２，２Ａ，２間に横ロープ材３，７，７を多段に設けた防護柵において、下段の横ロープ材７，７を支柱２，２Ａ，２のうち３本以上の支柱２，２Ａ，２に固定したから、落石時に下段の横ロープ材７，７が捲れ上がって落石が通過することを防止できる。 Thus, in this embodiment, in correspondence with claim 1, three or more struts 2, 2A, 2 are provided at predetermined intervals on the left and right, and the horizontal rope members 3, 7, Since the lower horizontal rope members 7 and 7 are fixed to the three or more struts 2, 2A, 2 of the struts 2, 2A, 2 in the multi-stage guard fences, the lower horizontal rope member 7 when the rock falls 7 can be prevented from rising and falling rocks passing through.

また、このように本実施例では、請求項２に対応して、下段の横ロープ材７，７を各支柱２，２Ａ，２に固定したから、落石時に下段の横ロープ材７，７が捲れ上がって落石が通過することを防止できる。 Further, in this embodiment, in accordance with claim 2, the lower horizontal rope members 7, 7 are fixed to the respective columns 2, 2A, 2, so the lower horizontal rope members 7, 7 It can prevent the falling rocks from passing through.

また、このように本実施例では、請求項３に対応して、中間の支柱２Ａに固定用ロープ材22を設け、この固定用ロープ材22に下段の横ロープ材７，７の途中を固定したから、固定用ロープ材22を介して横ロープ材７，７の途中を中間支柱２Ａに固定することが、横ロープ材７を分割せずに中間支柱２Ａに固定することができる。 In this way, in this embodiment, corresponding to claim 3, the fixing rope member 22 is provided on the intermediate support 2A, and the middle portion of the lower horizontal rope members 7, 7 is fixed to the fixing rope member 22. Therefore, fixing the middle of the horizontal rope members 7 and 7 to the intermediate strut 2A via the fixing rope member 22 can fix the horizontal rope member 7 to the intermediate strut 2A without dividing.

また、実施例上の効果として、横ロープ材７を固定用ロープ材22の略全長に添わせ、両者を固定具たる複数のクリップ23により挟着固定したから、現場での作業を簡便に行うことができる。 Further, as an effect of the embodiment, the horizontal rope member 7 is made to follow the substantially entire length of the fixing rope member 22, and the both are clamped and fixed by a plurality of clips 23 serving as fixtures, so that the work at the site is easily performed. be able to.

図８及び図９は、本発明の実施例２を示し、上記実施例１と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、左右の固定用ロープ材22Ｌ，22Ｒを備え、これら左右の固定用ロープ材22Ｌ，22Ｒの端部には、輪部24が設けられている。また、連結部25は平面略Ｔ字型をなし、その連結部25の左右両端に、コ字型の受け部26を設け、この受け部26に前記輪部24を挿入し、これら受け部26と輪部24に連結軸たるボルト27を挿通し、このボルト27にナット28を螺合して連結部に固定用ロープ材22Ｌ，22Ｒを連結する。 8 and 9 show a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In this example, left and right fixing rope members 22L and 22R are provided, and ring portions 24 are provided at ends of the left and right fixing rope members 22L and 22R. Further, the connecting portion 25 is substantially T-shaped in a plane, and U-shaped receiving portions 26 are provided at both left and right ends of the connecting portion 25, and the ring portion 24 is inserted into the receiving portion 26. Then, a bolt 27 as a connecting shaft is inserted into the ring portion 24, and a nut 28 is screwed into the bolt 27 to connect the fixing rope members 22L and 22R to the connecting portion.

そして、間隔をおいて設けた複数のクリップ23により、左右の固定用ロープ材22Ｌ，22Ｒと横ロープ材７の途中を挟着固定する。 The right and left fixing rope members 22L and 22R and the horizontal rope member 7 are sandwiched and fixed by a plurality of clips 23 provided at intervals.

このように本実施例では、請求項４に対応して、中間の支柱２Ａに連結部25を設け、この連結部25の左右に固定用ロープ材22，22をそれぞれ連結したから、左右の固定用ロープ材に横ロープ材の途中を連結して中間支柱に固定することができる。 As described above, in this embodiment, corresponding to claim 4, the connecting portion 25 is provided in the intermediate strut 2A, and the fixing rope members 22, 22 are connected to the left and right of the connecting portion 25, respectively. It can be fixed to the intermediate strut by connecting the middle of the horizontal rope material to the rope material.

図１０〜図１５は、本発明の実施例３を示し、上記各実施例と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、前記横ロープ材７を前記支柱２，２Ａ，２Ａ，２の間隔に対応して複数の分割横ロープ材８，８，８，８を形成し、この分割横ロープ材８の両端部に輪部８Ｗ，８Ｗを設ける。 FIGS. 10-15 shows Example 3 of this invention, attaches | subjects the same code | symbol to the same part as said each Example, the detailed description is abbreviate | omitted and explained in full detail. In this example, the horizontal rope member 7 is formed with a plurality of divided horizontal rope members 8, 8, 8, 8 corresponding to the intervals between the support columns 2, 2 A, 2 A, 2. Ring portions 8W and 8W are provided in the portion.

図１２及び図１３に示すように、前記中間支柱２Ａにおける固定構造は、前記中間支柱２Ａに横杆31を左右方向に貫通して設け、この横杆31はねじ棒などからなり、前記横杆31は、前後方向中央より前側（山側）に位置し、中間支柱２Ａから外部に出た端部31Ｔに、テーパライナ32を挿通すると共に、ナット33を螺合して中間支柱２Ａに横杆31を固定する。尚、前記中間支柱２Ａ内には前記横杆31を挿通する管材38が設けられ、この管材38には鋼管などが用いられ、その管材38の端部を溶接などにより中間支柱２Ａに固着している。
また、前記テーパライナ32は前記中間支柱２Ａの外面に係合する湾曲状の内面を有する。 As shown in FIGS. 12 and 13, the fixing structure of the intermediate strut 2A is provided with a horizontal bar 31 penetrating in the left and right direction in the intermediate strut 2A, and the horizontal bar 31 is composed of a screw rod or the like. 31 is located on the front side (mountain side) from the center in the front-rear direction, and the taper liner 32 is inserted into the end 31T that protrudes to the outside from the intermediate strut 2A, and the nut 33 is screwed into the intermediate strut 2A. Fix it. In addition, a pipe 38 for inserting the horizontal rod 31 is provided in the intermediate strut 2A. A steel pipe or the like is used for the pipe 38, and the end of the pipe 38 is fixed to the intermediate strut 2A by welding or the like. Yes.
The taper liner 32 has a curved inner surface that engages with the outer surface of the intermediate strut 2A.

前記横杆31の端部31Ｔには、取付体34が左右方向位置決め可能に設けられている。この取付体34は、前後方向の板材からなる横杆連結部35と左右方向の板材からなるロープ材連結部36とを一体に備え、平面略Ｌ字形をなし、その横杆連結部35に前記横杆31を挿通する挿通孔35Ａを穿設し、この挿通孔35Ａの上下位置で前記ロープ材連結部36に連結孔36Ａ，36Ａをそれぞれ穿設してなる。また、前記取付体34の前記ロープ材連結部36に前記２段の分割横ロープ材８，８を連結する。この連結には、連結具たるシャックル37が用いられる。このシャックル37は、端部に開口部を有するＵ字型の本体37Ａと、この本体37Ａの開口部に着脱自在に設けるボルト37Ｂ，ナット37Ｃを備え、前記本体37Ａを前記輪部８Ｗに係止し、ロープ材連結部36を本体37Ａの端部により挟んだ状態で、ボルト37Ｂを連結孔36Ａに挿通すると共に、ボルト37Ｂを本体37Ａの端部に挿通し、そのボルト37Ｂにナット37Ｃを螺合することにより、取付体34に分割横ロープ材８を回動自在に連結する。このように取付体34に複数本（２本）の分割横ロープ材８，８を連結し、挿通孔35Ａに横杆31の端部31Ｔを挿通し、この端部31Ｔにナット31Ｎを螺合することにより、分割横ロープ材８を中間支柱２Ａに位置調整可能に連結することができる。 A mounting body 34 is provided at the end 31T of the horizontal bar 31 so as to be positioned in the left-right direction. This attachment body 34 is integrally provided with a reed connecting part 35 made of a plate material in the front-rear direction and a rope material connecting part 36 made of a plate material in the left-right direction, and has a substantially plane L shape. An insertion hole 35A for inserting the horizontal rod 31 is formed, and connection holes 36A and 36A are formed in the rope member connection portion 36 at positions above and below the insertion hole 35A, respectively. Further, the two-stage divided horizontal rope members 8 and 8 are connected to the rope member connecting portion 36 of the attachment body 34. For this connection, a shackle 37 as a connecting tool is used. The shackle 37 includes a U-shaped main body 37A having an opening at the end, a bolt 37B and a nut 37C that are detachably provided in the opening of the main body 37A, and the main body 37A is locked to the ring portion 8W. Then, with the rope member connecting portion 36 sandwiched between the end portions of the main body 37A, the bolt 37B is inserted into the connecting hole 36A, the bolt 37B is inserted into the end portion of the main body 37A, and the nut 37C is screwed into the bolt 37B. By combining, the split horizontal rope member 8 is rotatably connected to the attachment body 34. In this way, a plurality of (two) split horizontal rope members 8, 8 are connected to the mounting body 34, the end 31T of the horizontal rod 31 is inserted into the insertion hole 35A, and the nut 31N is screwed into the end 31T. By doing so, the division | segmentation horizontal rope material 8 can be connected with the intermediate support | pillar 2A so that position adjustment is possible.

図１４及び図１５に示すように、前記端末支柱２の固定構造は、前記端末支柱２に前記横杆31を左右方向に貫通して設け、前記横杆31は、前後方向中央に位置し、端末支柱２から防護柵の外部に出た端部31Ｔに、座板41を挿通し、この座板41を端末支柱２に溶着し、その端部31Ｔに前記ナット31Ｎを螺合している。一方、端末支柱２から防護柵の内部に出た端部31Ｔには、前記取付体34を連結し、これにより２段の分割横ロープ材８，８の端部を端末支柱２に連結する。 As shown in FIGS. 14 and 15, the fixing structure of the terminal support 2 is provided in the terminal support 2 by penetrating the horizontal bar 31 in the left-right direction, and the horizontal bar 31 is located at the center in the front-rear direction, A seat plate 41 is inserted into an end portion 31T protruding from the terminal support column 2 to the outside of the protective fence, the seat plate 41 is welded to the terminal support column 2, and the nut 31N is screwed to the end portion 31T. On the other hand, the attachment body 34 is connected to the end portion 31T protruding from the terminal support column 2 into the inside of the protective fence, whereby the end portions of the two-stage split horizontal rope members 8 and 8 are connected to the terminal support column 2.

このように本実施例では、上記各実施例と同様な作用・効果を奏する。 As described above, in this embodiment, the same operations and effects as the above-described embodiments are obtained.

このように本実施例では、請求項５に対応して、横ロープ材８を支柱２，２Ａ，２間ごとに分割した分割横ロープ材８を形成し、分割横ロープ材８の端部を支柱２，２Ａ，２に固定したから、分割横ロープ材８を支柱２，２Ａ，２間毎に固定することができる。 As described above, in this embodiment, corresponding to claim 5, the divided horizontal rope material 8 is formed by dividing the horizontal rope material 8 between the supports 2, 2A, 2, and the end of the divided horizontal rope material 8 is formed. Since it fixed to the support | pillars 2, 2A, 2, the division | segmentation horizontal rope material 8 can be fixed for every support | pillar 2, 2A, 2 space | interval.

このように本実施例では、請求項６に対応して、分割横ロープ材８の端部を位置調整手段たる取付体34により支柱２，２Ａ，２に固定したから、端部の位置を調整して分割横ロープ材８を所定の張力で張設することができる。 In this way, in this embodiment, in correspondence with claim 6, the end of the split horizontal rope member 8 is fixed to the support columns 2, 2A, 2 by the mounting body 34 as the position adjusting means, so the position of the end is adjusted. Thus, the divided horizontal rope member 8 can be stretched with a predetermined tension.

また、実施例上の効果として、取付体34に複数本の分割横ロープ材８，８を連結したから、複数本の分割横ロープ材８，８の中間支柱２Ａへの固定構造を簡略化することができる。 Further, as an effect of the embodiment, since the plurality of divided horizontal rope members 8, 8 are connected to the attachment body 34, the structure for fixing the plurality of divided horizontal rope members 8, 8 to the intermediate strut 2A is simplified. be able to.

図１６〜図１８は、本発明の実施例４を示し、上記各実施例と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。同図は、下段の横ロープ材７を３本以上の支柱に固定する例を示し、前記横ロープ材３の端部３Ｔは連結手段81により端末支柱２に連結され、前記連結手段81には、落石のエネルギーを吸収する前記衝撃収集装置11や、端部３Ｔを端末支柱２に固定するものなどが用いられる。 FIGS. 16-18 shows Example 4 of this invention, attaches | subjects the same code | symbol to the same part as said each Example, the detailed description is abbreviate | omitted and explained in full detail. The figure shows an example in which the lower horizontal rope member 7 is fixed to three or more struts, and the end 3T of the horizontal rope member 3 is connected to the terminal strut 2 by connecting means 81, The impact collecting device 11 that absorbs the energy of falling rocks, or the one that fixes the end 3T to the terminal column 2 is used.

図１６では、右側の端末支柱２と、この端末支柱２と１本の中間支柱２Ａを間に置いた中間支柱２Ａと、この中間支柱２Ａと１本の中間支柱２Ａを間に置いた中間支柱２Ａに横ロープ材７を固定し、これにより横ロープ材７を４本の支柱２，２Ａ，２Ａ，２に固定している。尚、符号82は固定箇所を示し、上記各実施例で示した固定構造や他の固定構造を採用できる。そして、このように落石が横ロープ材７を捲り上げて通過することのない範囲で固定箇所82の間隔を大きくすることにより、横ロープ材７における落石エネルギーの吸収効果を高めることができる。 In FIG. 16, the right terminal column 2, the intermediate column 2 A having the terminal column 2 and one intermediate column 2 A in between, and the intermediate column 2 A having the intermediate column 2 A and one intermediate column 2 A in between. The horizontal rope member 7 is fixed to 2A, and thereby the horizontal rope member 7 is fixed to the four columns 2, 2A, 2A, 2. Reference numeral 82 denotes a fixing location, and the fixing structure shown in each of the above embodiments or other fixing structures can be adopted. And the absorption effect of the rock fall energy in the horizontal rope material 7 can be heightened by enlarging the space | interval of the fixed location 82 in the range which a rock fall does not climb up the horizontal rope material 7 in this way.

図１７では、隣り合う５本の中間支柱２Ａ，２Ａ，２Ａ，２Ａ，２Ａに横ロープ材７を固定している。この図１７では、端末支柱２側が落石を受けない場合に適する。 In FIG. 17, the horizontal rope member 7 is fixed to five adjacent intermediate struts 2A, 2A, 2A, 2A, 2A. This FIG. 17 is suitable when the terminal column 2 side does not receive a falling rock.

図１８では、１本の中間支柱２Ａを間に置いた中間支柱２Ａ，２Ａ，２Ａに横ロープ材７を固定しており、これら図１６〜図１８に示すように、適宜３本以上の支柱を組み合わせて横ロープ材７を固定することができる。 In FIG. 18, the horizontal rope member 7 is fixed to the intermediate struts 2A, 2A, 2A with one intermediate strut 2A in between. As shown in FIGS. The horizontal rope member 7 can be fixed in combination.

このように本実施例では、請求項１に対応して、左右に所定の間隔で３本以上である７本の支柱２，２Ａ，２Ａ，２Ａ，２Ａ，２Ａ，２を設け、支柱２，２Ａ，２Ａ，２Ａ，２Ａ，２Ａ，２間に横ロープ材３，７を多段に設けた防護柵において、下段の横ロープ材７を３本以上の支柱２，２Ａに固定したから、落石時に下段の横ロープ材７が捲れ上がって落石が通過することを防止できる。 Thus, in the present embodiment, corresponding to claim 1, the right and left seven columns 2, 2A, 2A, 2A, 2A, 2A, 2 are provided at predetermined intervals. 2A, 2A, 2A, 2A, 2A, 2 In the protective fence where the horizontal rope members 3, 7 are provided in multiple stages, the lower horizontal rope member 7 is fixed to three or more struts 2, 2A. It is possible to prevent the falling rope from passing due to the lower horizontal rope member 7 being rolled up.

図１９〜図２５は、本発明の実施例５を示し、上記各実施例と同一部分に同一符号を付す。 FIGS. 19-25 shows Example 5 of this invention, and attaches | subjects the same code | symbol to the same part as each said Example.

上記実施例２では、横ロープ材８を支柱２，２Ａ，２間ごとに分割した分割横ロープ材８を形成し、分割横ロープ材８の端部を支柱２，２Ａ，２に固定したから、分割横ロープ材８を支柱２，２Ａ，２間毎に固定することができ、落石時に下段の横ロープ材８が捲れ上がって落石が通過することを防止できる。 In the said Example 2, since the division | segmentation horizontal rope material 8 which divided | segmented the horizontal rope material 8 for every support | pillar 2, 2A, 2 was formed, and the edge part of the division | segmentation horizontal rope material 8 was fixed to the support | pillar 2, 2A, 2. Further, the divided horizontal rope member 8 can be fixed between the support columns 2, 2 A, 2, and it is possible to prevent the lower horizontal rope member 8 from rolling up and falling rocks at the time of falling rocks.

ところで、設計条件を超える落石を分割横ロープ材８が受けると、取付材34などが破損し飛散することや、それにより落石が通過することが想定される。 By the way, when the divided horizontal rope member 8 receives falling rocks exceeding the design conditions, it is assumed that the attachment material 34 and the like are broken and scattered, and the falling rocks thereby pass.

そこで、中間支柱２Ａにおいて、両側のシャックル37，37を連結ロープ材により連結する構成を採用し、以下、連結ロープ材を中心に説明する。 Therefore, in the intermediate strut 2A, a configuration in which the shackles 37 on both sides are connected by a connecting rope material will be described below with a focus on the connecting rope material.

図２０〜図２２に示すように、前記中間支柱２Ａにおける固定構造は、前記中間支柱２Ａに前記横杆31を左右方向に貫通して設け、この横杆31はねじ棒などからなり、前記横杆31は、前後方向中央に位置し、中間支柱２Ａから外部に出た端部31Ｔに、ナット33を螺合して中間支柱２Ａに横杆31を固定する。 As shown in FIGS. 20 to 22, the fixing structure of the intermediate strut 2 A is provided in the intermediate strut 2 A by penetrating the horizontal bar 31 in the left-right direction. The collar 31 is located at the center in the front-rear direction, and a nut 33 is screwed into an end 31T that is exposed to the outside from the intermediate strut 2A to fix the horizontal collar 31 to the intermediate strut 2A.

前記横杆31の左右の端部31Ｔ，31Ｔには、左右の取付体134，134がそれぞれ左右方向位置決め可能に設けられている。この取付体134は、前後方向の板材からなる横杆連結部135と左右方向の板材からなるロープ材連結部136とを一体に備え、前記横連結部135の中央に前記ロープ連結部136を固着して平面略Ｔ字形をなし、また、前記取付体134の上下には、平面略三角形をなす補強リブ137がそれぞれ設けられ、その補強リブ137は横杆連結部135とロープ連結部136に溶着され、さらに、前記取付体134の前側中央には、補強リブ138が設けられ、この補強リブ138は、横杆連結部135の前側とロープ連結部136の前面とに溶着されている。 The left and right end portions 31T, 31T of the horizontal rod 31 are provided with left and right attachment bodies 134, 134, respectively, so that they can be positioned in the left-right direction. The mounting body 134 is integrally provided with a horizontal hook connecting portion 135 made of a plate material in the front-rear direction and a rope material connecting portion 136 made of a plate material in the left-right direction, and the rope connecting portion 136 is fixed to the center of the horizontal connecting portion 135. In addition, a substantially T-shaped flat surface is formed, and reinforcing ribs 137 each having a substantially planar shape are provided on the upper and lower sides of the attachment body 134, and the reinforcing ribs 137 are welded to the lateral link connecting portion 135 and the rope connecting portion 136. Further, a reinforcing rib 138 is provided in the center of the front side of the attachment body 134, and the reinforcing rib 138 is welded to the front side of the horizontal joint connecting portion 135 and the front surface of the rope connecting portion 136.

また、前記横杆連結部135の後方に前記横杆31を挿通する挿通孔135Ａを穿設し、この挿通孔135Ａの上下位置で前記ロープ材連結部136に連結孔136Ａ，136Ａをそれぞれ穿設してなる。また、前記ロープ材連結部136に前記２段の分割横ロープ材８，８を各段２本ずつ連結する。この連結には、連結具たる前記シャックル37が用いられる。 Further, an insertion hole 135A for inserting the horizontal rod 31 is formed behind the horizontal link connecting portion 135, and connection holes 136A and 136A are provided in the rope member connecting portion 136 at positions above and below the insertion hole 135A, respectively. Do it. Further, the two-stage split horizontal rope members 8 and 8 are connected to the rope member connecting portion 136 at two stages. For this connection, the shackle 37 as a connecting tool is used.

このように取付体34に複数本（４本）の分割横ロープ材８，８を連結し、挿通孔135Ａに横杆31の端部31Ｔを挿通し、この端部31Ｔにナット31Ｎを螺合することにより、分割横ロープ材８を中間支柱２Ａに位置調整可能に連結することができる。 In this way, a plurality (four) of the divided horizontal rope members 8, 8 are connected to the mounting body 34, the end 31T of the horizontal rod 31 is inserted into the insertion hole 135A, and the nut 31N is screwed into the end 31T. By doing so, the division | segmentation horizontal rope material 8 can be connected with the intermediate support | pillar 2A so that position adjustment is possible.

前記中間支柱２Ａを挟んだ左右のシャックル37，37は、連結ロープ材101により連結されている。この連結ロープ材101は、両端を連結手段たるアルミニウムクランプ102により加締めて環状に形成されており、前記連結ロープ材101の端部の輪部101Ｗ，101Ｗを左右それぞれのシャックル37，37に挿通し、中間支柱２Ａの前側に沿ってほぼ水平に配置されている。また、上側の左右のクランプ37，37間と、下側の左右のクランプ37，37間にそれぞれ連結ロープ材101，101が設けられ、これら連結ロープ材101，101は、落石を受ける側である山側に設置されている。 The left and right shackles 37, 37 sandwiching the intermediate strut 2 A are connected by a connecting rope material 101. The connecting rope member 101 is formed in an annular shape by caulking both ends with aluminum clamps 102 as connecting means, and the ring portions 101W and 101W at the end of the connecting rope member 101 are inserted into the left and right shackles 37 and 37, respectively. In addition, they are arranged almost horizontally along the front side of the intermediate strut 2A. Further, connecting rope members 101, 101 are provided between the upper left and right clamps 37, 37 and between the lower left and right clamps 37, 37, respectively. It is installed on the mountain side.

図２３〜図２５に示すように、前記端末支柱２の固定構造は、前記端末支柱２に前記横杆31を左右方向に貫通して設け、前記横杆31は、前後方向中央に位置し、端末支柱２から防護柵の内部に出た端部31Ｔに前記取付体134を連結し、中間支柱２Ａと同様にシャックル37，37により２段の分割横ロープ材８，８の端部を各段２本ずつ端末支柱２に連結する。 As shown in FIGS. 23 to 25, the fixing structure of the terminal column 2 is provided by penetrating the terminal rod 31 in the left-right direction in the terminal column 2, and the horizontal rod 31 is located in the center in the front-rear direction, The mounting body 134 is connected to the end 31T that protrudes from the terminal column 2 to the inside of the protective fence, and the end portions of the two split horizontal rope members 8 and 8 are connected to each step by the shackles 37 and 37 in the same manner as the intermediate column 2A. Two pieces are connected to the terminal support 2 at a time.

また、前記連結ロープ材101を端末支柱２に巻き付け、一方の端部の輪部101Ｗに他方の輪部101Ｗを挿通し、この挿通した他方の輪部101Ｗを前記シャックル37に挿通し、端末支柱２とシャックル37とを連結ロープ材101により連結している。 Further, the connecting rope member 101 is wound around the terminal column 2, the other ring portion 101W is inserted into the ring portion 101W at one end, and the inserted other ring portion 101W is inserted into the shackle 37, thereby the terminal column. 2 and the shackle 37 are connected by a connecting rope member 101.

また、このように本実施例では、請求項７に対応して、分割横ロープ材８の端部を連結具たるシャックル37により支柱たる中間支柱２Ａに固定し、中間支柱２Ａ両側のシャックル37を連結ロープ材101により連結したから、シャックル37の取付部分である取体体134などの破損による部材の飛散やそれによる落石の通過を防止することができる。 In this way, in this embodiment, corresponding to claim 7, the end portion of the divided horizontal rope member 8 is fixed to the intermediate strut 2A as a strut by the shackle 37 as a connecting tool, and the shackles 37 on both sides of the intermediate strut 2A are fixed. Since they are connected by the connecting rope member 101, it is possible to prevent scattering of members due to breakage of the body 134, which is an attachment portion of the shackle 37, and passage of falling rocks due thereto.

また、このように本実施例では、請求項８に対応して、分割横ロープ材８の端部を連結具たるシャックルにより支柱たる端部支柱２に固定し、端部支柱２一側のシャックル37と端部支柱２とを連結ロープ材101により連結したから、シャックル37の取付部分である取体体134などのなどの破損による部材の飛散やそれによる落石の通過を防止することができる。 In this way, in this embodiment, corresponding to claim 8, the end of the split horizontal rope member 8 is fixed to the end column 2 as a column by the shackle as a connecting tool, and the shackle on one side of the end column 2 is secured. 37 and the end struts 2 are connected by the connecting rope member 101, so that scattering of members due to breakage of the body 134, etc., which is the attachment portion of the shackle 37, and passage of falling rocks due to the damage can be prevented.

また、実施例上の効果として、連結ロープ材101を環状に形成し、連結状態で環状となる連結具であるャックル37に連結したから、連結作業を簡便に行うことができると共に、強固に連結することができる。さらに、端末支柱２に連結ロープ材37を巻き付けて連結したから、連結作業を容易に行うことができる。また、各段に２本の分割ロープ材８，８を前後に位置して張設したから、一層、分割ロープ材８の捲れ上がりを防止できる。 In addition, as an effect on the embodiment, the connecting rope material 101 is formed in an annular shape and connected to the knuckle 37 which is an annular connecting tool, so that the connecting work can be easily performed and the connection is firmly performed. can do. Further, since the connecting rope member 37 is wound around the terminal support 2 and connected, the connecting work can be easily performed. In addition, since the two split rope members 8, 8 are stretched at the front and rear of each stage, the split rope member 8 can be prevented from further rising.

尚、本発明は、本実施例に限定されるものではなく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、端末支柱に連結する下段の横ロープ材は、下段の横ロープ材の伸び以外は伸びないように連結されることが好ましい。 The present invention is not limited to this embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, it is preferable that the lower horizontal rope member connected to the terminal column is connected so as not to extend except for the extension of the lower horizontal rope member.

１地面（設置場所）
２端末支柱
２Ａ中間支柱
３横ロープ材
７横ロープ材
８分割横ロープ材
21 連結部
22 固定用ロープ材
25 連結部
34 取付体（位置調整手段）
37 シャックル（連結具）
101 連結ロープ材 1 Ground (installation location)
2 Terminal support 2A Intermediate support 3 Horizontal rope material 7 Horizontal rope material 8 Split horizontal rope material
21 Connecting part
22 Rope material for fixing
25 Connecting part
34 Mounting body (position adjustment means)
37 Shackle (connector)
101 Connecting rope material

Claims

左右に所定の間隔で３本以上の支柱を設け、前記支柱間に横ロープ材を多段に設けた防護柵において、下段の前記横ロープ材を前記支柱のうち３本以上の支柱に固定したことを特徴とする防護柵。 Three or more struts are provided at predetermined intervals on the left and right, and the horizontal rope material in the lower stage is fixed to three or more struts of the struts in a protective fence in which horizontal rope members are provided in multiple stages between the struts. Guard fence characterized by.

下段の前記横ロープ材を前記各支柱に固定したことを特徴とする請求項１記載の防護柵。 The protective fence according to claim 1, wherein the horizontal rope member in the lower stage is fixed to each of the columns.

中間の前記支柱に固定用ロープ材を設け、この固定用ロープ材に前記下段の横ロープ材の途中を固定したことを特徴とする請求項１又は２記載の防護柵。 The protective fence according to claim 1 or 2, wherein a fixing rope member is provided on the intermediate strut, and a middle portion of the lower horizontal rope member is fixed to the fixing rope member.

中間の支柱に連結部を設け、この連結部の左右に前記固定用ロープ材をそれぞれ連結したことを特徴とする請求項３記載の防護柵。 4. The protective fence according to claim 3, wherein a connecting portion is provided on an intermediate strut, and the fixing rope members are connected to the left and right of the connecting portion, respectively.

前記横ロープ材を前記支柱間ごとに分割した分割横ロープ材を形成し、前記分割横ロープ材の端部を前記支柱に固定したことを特徴とする請求項１又は２記載の防護柵。 The protective fence according to claim 1 or 2, wherein a divided horizontal rope material is formed by dividing the horizontal rope material between the columns, and an end portion of the divided horizontal rope material is fixed to the column.

前記分割横ロープ材の端部を位置調整手段により前記支柱に固定したことを特徴とする請求項５記載の防護柵。 6. The protective fence according to claim 5, wherein an end portion of the divided horizontal rope member is fixed to the support column by a position adjusting means.

前記分割横ロープ材の端部を連結具により前記支柱に固定し、前記支柱両側の前記連結具を連結ロープ材により連結したことを特徴とする請求項５又は６記載の防護柵。 The protective fence according to claim 5 or 6, wherein an end of the divided horizontal rope member is fixed to the support column by a connecting tool, and the connecting tools on both sides of the support column are connected by a connecting rope member.

前記分割横ロープ材の端部を連結具により前記支柱に固定し、前記支柱一側の前記連結具と前記支柱とを連結ロープ材により連結したことを特徴とする請求項５又は６記載の防護柵。 The protection according to claim 5 or 6, wherein an end portion of the divided horizontal rope member is fixed to the support column by a connecting tool, and the connecting tool on one side of the support column and the support column are connected by a connecting rope material. fence.