JP2009228242A - Reinforcing method for guard fence - Google Patents

Reinforcing method for guard fence Download PDF

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JP2009228242A
JP2009228242A JP2008072538A JP2008072538A JP2009228242A JP 2009228242 A JP2009228242 A JP 2009228242A JP 2008072538 A JP2008072538 A JP 2008072538A JP 2008072538 A JP2008072538 A JP 2008072538A JP 2009228242 A JP2009228242 A JP 2009228242A
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shock absorber
horizontal rope
support
protective fence
rope member
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JP4310812B1 (en
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Yasuo Watanabe
康夫 渡辺
Yoshihisa Murata
佳久 村田
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Nihon Samicon Co Ltd
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Nihon Samicon Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a guard fence which is excellent in energy absorption effect, and which facilitates the attachment of a buffering implement to a support. <P>SOLUTION: The plurality of supports 2 and 2 are provided at predetermined spacings, and a horizontal rope material 3 is provided between the supports 2 and 2. The buffering implement 4 is fixed to an outer surface of a flange portion 11 of the support 2 by means of the buffering implement 4 for holding the horizontal rope material 3. The direct fixation of the buffering implement 4 to the outer surface of the flange portion 11 of the support 2 simplifies a mounting structure of the buffering implement 4, and brings about the inexpensive guard fence excellent in rock fall energy absorbing effect. Additionally, the plurality of rope materials 3 and 3 can be attached to the support 2 by means of the single buffering implement 4. Furthermore, the use of the buffering implement in the repair of the existing guard fence can make the rock fall energy absorbing effect greater than before the repair. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、雪崩・落石等における防護柵とその改修方法に関する。   The present invention relates to a protective fence for avalanches, falling rocks, etc. and a method for repairing the same.

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、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２）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。
特開平７−１９７４２３号公報 特開２００３−３１３８２８号公報 In addition, a rope shock absorber (for example, Patent Document 2) 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.
JP-A-7-197423 JP 2003-313828 A

上記特許文献２のようは緩衝具を備えた防護柵は、その緩衝作用により落石などのエネルギー吸収効果に優れたものとなるが、Ｕボルトと把持具を備えた緩衝具を用いるため、防護柵の構造が複雑になる面がある。   Although the protection fence provided with the shock absorber as in Patent Document 2 has an excellent energy absorption effect such as falling rocks due to the buffer action, the protection fence is used because the shock absorber provided with the U bolt and the gripping tool is used. There are aspects that make the structure complicated.

また、上記特許文献１に記載の防護柵において、金網などが損傷し、補修工事を行なったとしても、現状を維持するだけで、エネルギー吸収効果を向上することはできない。そこで、補修工事の際に緩衝具を取付けることが考えられるが、Ｈ鋼などの支柱に直接緩衝具を連結することはできないため、支柱に連結部を取付け、或いは支柱を加工する必要が生じ、補修工事において簡単に改造することができない。   Moreover, in the guard fence of the said patent document 1, even if a metal mesh etc. are damaged and repair work is performed, an energy absorption effect cannot be improved only by maintaining the present condition. Therefore, it is conceivable to install a shock absorber during repair work, but since it is not possible to directly connect the shock absorber to a support such as H steel, it is necessary to attach a connecting part to the support or to process the support, It cannot be easily modified during repair work.

そこで、本発明は、エネルギー吸収効果に優れ、支柱への緩衝具の取付けが簡単な防護柵を提供することを目的とし、また、補修により簡便にエネルギー吸収効果を向上することができる防護柵の補修方法を提供することを目的とする。   Therefore, the present invention aims to provide a protective fence that has an excellent energy absorption effect and that allows easy mounting of a shock absorber on a support column, and that a protective fence that can easily improve the energy absorption effect by repair. The purpose is to provide repair methods.

請求項１の発明は、所定の間隔で複数の支柱を設け、前記支柱間に横ロープ材を設けた防護柵において、前記横ロープ材を把持する緩衝具を用い、この緩衝具を前記支柱の外板の外面に設けたものである。   In the first aspect of the present invention, in the protective fence in which a plurality of support pillars are provided at predetermined intervals and a horizontal rope member is provided between the support posts, a shock absorber that grips the horizontal rope member is used, and the shock absorber is attached to the support rod. It is provided on the outer surface of the outer plate.

また、請求項２の発明は、所定の間隔で複数の支柱を設け、前記支柱間に横ロープ材を設けた防護柵において、前記横ロープ材を複数把持する緩衝具を用い、この緩衝具を前記支柱の外板の外面に設けたものである。   The invention of claim 2 is a protective fence in which a plurality of struts are provided at a predetermined interval, and a horizontal rope member is provided between the struts. It is provided on the outer surface of the outer plate of the support column.

また、請求項３の発明は、前記緩衝具と前記外板とを挿通したボルトにより前記緩衝具を前記支柱に固定したものである。   According to a third aspect of the present invention, the shock absorber is fixed to the column with a bolt inserted through the shock absorber and the outer plate.

また、請求項４の発明は、前記外面の平面部に前記緩衝具を固定したものである。   According to a fourth aspect of the present invention, the buffer is fixed to the flat portion of the outer surface.

また、請求項５の発明は、前記緩衝具により前記支柱の両側に配置した前記横ロープ材を把持したものである。   In the invention according to claim 5, the horizontal rope member disposed on both sides of the support column is gripped by the buffer.

また、請求項６の発明は、前記緩衝具により前記支柱の一側に配置した前記複数の横ロープ材を把持したものである。   Moreover, invention of Claim 6 hold | gripped the said some horizontal rope material arrange | positioned on the one side of the said support | pillar with the said buffer.

また、請求項７の発明は、前記横ロープ材の端部に前記緩衝具に係止するストッパを設けたものである。   According to a seventh aspect of the present invention, a stopper is provided at the end of the horizontal rope member so as to be engaged with the shock absorber.

また、請求項８の発明は、前記支柱間に木質の杆を設けたものである。   In the invention according to claim 8, a wooden fence is provided between the columns.

また、請求項９の発明は、前記横ロープ材にループ部を設け、このループ部の重合部を前記緩衝具により把持したものである。   According to a ninth aspect of the present invention, a loop portion is provided on the horizontal rope member, and the overlapping portion of the loop portion is held by the buffer.

また、請求項１０の発明は、前記横ロープ材を把持する緩衝具を前記支柱間に設けたものである。   According to a tenth aspect of the present invention, a shock absorber for gripping the horizontal rope member is provided between the columns.

また、請求項１１の発明は、所定の間隔で配置した複数の支柱を備えた既設の防護柵の改修方法において、横ロープ材を複数把持する緩衝具を用い、この緩衝具を前記支柱の外板の外面に固定して前記支柱間に横ロープ材を設ける補修方法である。   According to an eleventh aspect of the present invention, there is provided a method for repairing an existing protective fence provided with a plurality of struts arranged at a predetermined interval, wherein a shock absorber that grips a plurality of lateral rope members is used, and the shock absorber is attached to the outside of the strut. This is a repair method in which a lateral rope material is provided between the support columns fixed to the outer surface of the plate.

請求項１の構成によれば、支柱の外板の外面に直接設けることにより、緩衝具の取付構造を簡略化し、安価にして落石エネルギー吸収効果に優れた防護柵が得られる。   According to the configuration of the first aspect, by providing directly on the outer surface of the outer plate of the support column, it is possible to simplify the mounting structure of the shock absorber, and to obtain a protective fence that is inexpensive and excellent in falling rock energy absorption effect.

また、請求項２の構成によれば、１つの緩衝具により複数の横ロープ材を支柱に取り付けることができる。   Moreover, according to the structure of Claim 2, a some horizontal rope material can be attached to a support | pillar with one buffer.

また、請求項３の構成によれば、ボルトを用いて緩衝具を簡便に取り付けることができる。   Moreover, according to the structure of Claim 3, a shock absorber can be simply attached using a volt | bolt.

また、請求項４の構成によれば、取り付け易いものとなる。   Moreover, according to the structure of Claim 4, it becomes easy to attach.

また、請求項５の構成によれば、１つの緩衝具で、その緩衝具を取り付けた支柱の両側に横ロープ材を設けることができる。   Moreover, according to the structure of Claim 5, a horizontal rope material can be provided in the both sides of the support | pillar which attached the buffer with one buffer.

また、請求項６の構成によれば、１つの緩衝具で、その緩衝具を取り付けた支柱の一側に、複数段に横ロープ材を設けることができる。   Moreover, according to the structure of Claim 6, a horizontal rope material can be provided in multiple steps | paragraphs by the side of the support | pillar which attached the buffer with one buffer.

また、請求項７の構成によれば、横ロープ材が摩擦摺動した後、緩衝具にストッパが係止して摺動が停止する。   Moreover, according to the structure of Claim 7, after a horizontal rope material carries out friction sliding, a stopper latches to a buffer and a sliding stops.

また、請求項８の構成によれば、木質の杆により落石などの衝撃を吸収できる。そして、杆を介して、落石の衝撃力を、上下多段に設けた横ロープ材に伝達することができ、衝撃力を分散させることができる。   Moreover, according to the structure of Claim 8, impacts, such as falling rocks, can be absorbed by the wooden fence. And the impact force of a falling rock can be transmitted to the horizontal rope material provided in the upper and lower multistages through the cage, and the impact force can be dispersed.

また、請求項９の構成によれば、ループ部が縮小する際、重合部の横ロープ材が緩衝具に摩擦摺動する。   Moreover, according to the structure of Claim 9, when a loop part shrink | contracts, the horizontal rope material of a superposition | polymerization part frictionally slides to a buffer.

また、請求項１０の構成によれば、支柱の間に設けた緩衝具によっても落石などの衝撃を吸収できる。   Moreover, according to the structure of Claim 10, shocks, such as falling rocks, can also be absorbed with the buffer provided between the support | pillars.

また、請求項１１の構成によれば、既設の防護柵を改修して落石エネルギー吸収効果を向上することができる。   Moreover, according to the structure of Claim 11, the existing guard fence can be repaired and the falling rock energy absorption effect can be improved.

本発明における好適な実施の形態について、添付図面を参照しながら詳細に説明する。なお、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。各実施例では、従来とは異なる新規な防護柵を採用することにより、従来にない防護柵が得られ、その防護柵について記述する。   Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention. In each embodiment, an unprecedented protective fence is obtained by adopting a new protective fence different from the conventional one, and the protective fence will be described.

以下、本発明の実施例を添付図面を参照して説明する。図１〜図４は本発明の実施例１を示し、同図に示すように、衝撃吸収柵である落石防護柵は、斜面あるいは斜面に並んで基礎たるコンクリート基礎１を設け、このコンクリート基礎１に複数の支柱２…を立設する。前記支柱２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Ｈ型鋼を用い、その下端を前記コンクリート基礎１に固着している。前記支柱２間には横ロープ材３，３が上下段に設けられ、この横ロープ材３の端部を把持する緩衝具４が前記支柱２の前面に設けられ、支柱２，２の間は金網５により遮蔽されている。尚、支柱２は上記のように基礎に固定してもよいし、下部を地中に建て込んで固定してもよいし、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。   Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment of the present invention. As shown in FIG. 1, a rock fall protection fence that is an impact absorbing fence is provided with a concrete foundation 1 that is a foundation alongside a slope or a slope. A plurality of columns 2 are erected on the side. The column 2 is made of H-shaped steel, concrete column, steel pipe, concrete-filled steel pipe, or the like. In this example, H-shaped steel is used and its lower end is fixed to the concrete foundation 1. Horizontal rope members 3 and 3 are provided in the upper and lower stages between the support columns 2, and a shock absorber 4 that holds an end of the horizontal rope material 3 is provided on the front surface of the support columns 2. It is shielded by the wire mesh 5. In addition, the support | pillar 2 may be fixed to a foundation as mentioned above, a lower part may be built and fixed in the ground, a lower part may be fixed to a slope etc. It may be fixed by a material.

前記支柱２は、前後のフランジ部11，11をウエブ部12で連結した断面Ｈ型をなし、それら前後のフランジ部11，11の前後の外面には、平面部13，13が形成されている。また、フランジ部11の内面には前記緩衝具４の取付位置に対応して、金属製などからなる補強プレート14が配置される。   The support column 2 has an H-shaped cross section in which front and rear flange portions 11 and 11 are connected by a web portion 12, and flat portions 13 and 13 are formed on front and rear outer surfaces of the front and rear flange portions 11 and 11, respectively. . A reinforcing plate 14 made of metal or the like is disposed on the inner surface of the flange portion 11 corresponding to the mounting position of the shock absorber 4.

前記緩衝具４は、前記横ロープ材３を所定の摩擦力で把持する一対の把持体21，21を備え、これら把持体21，21の合せ面に、横ロープ材３に嵌合する一対の嵌合溝22，22を形成し、両把持体21，21は、ボルト23とナット24を備えた締付固定手段23，23により締め付けられ、且つ前記支柱２に上下方向多段に固定される。   The shock absorber 4 includes a pair of gripping bodies 21 and 21 for gripping the horizontal rope member 3 with a predetermined frictional force, and a pair of mating surfaces of the gripping bodies 21 and 21 that are fitted to the horizontal rope member 3. The fitting grooves 22 and 22 are formed, and both the gripping bodies 21 and 21 are fastened by fastening fixing means 23 and 23 including a bolt 23 and a nut 24, and are fixed to the column 2 in multiple stages in the vertical direction.

前記把持体21は、支柱２の高さ方向に長い略矩形のブロック状をなし、使用状態で、横方向をなす前記嵌合溝22，22が上下に並ぶ。また、使用状態で、前記嵌合溝22，22を挟んだ把持体21，21の上下には、前記ボルト23を挿通する挿通孔23Ａ，23Ａが穿設され、この挿通孔23Ａ，23Ａに対応して、前記フランジ部11に挿通孔23Ｂ，23Ｂを穿設すると共に、前記補強プレート14に挿通孔23Ｂ，23Ｂを穿設している。尚、前記横ロープ材３の端部には、前記緩衝具４の把持体21，21に係止するストッパ６が固着されている。   The gripping body 21 is formed in a substantially rectangular block shape that is long in the height direction of the support column 2, and the fitting grooves 22, 22 that form a lateral direction are arranged vertically when in use. In use, insertion holes 23A and 23A through which the bolts 23 are inserted are formed above and below the gripping bodies 21 and 21 with the fitting grooves 22 and 22 interposed therebetween, and correspond to the insertion holes 23A and 23A. The flange portion 11 is provided with insertion holes 23B and 23B, and the reinforcing plate 14 is provided with insertion holes 23B and 23B. A stopper 6 is fixed to the end of the horizontal rope member 3 so as to be engaged with the gripping bodies 21 and 21 of the shock absorber 4.

現場での取付け作業においては、図１に示すように、複数並んだ支柱２，２…に対して所定間隔で前記緩衝具４を取り付け、各支柱２には、上下方向に間隔をおいて前記緩衝具４を多段に取り付ける。この場合、緩衝具４における上側の嵌合溝22に上側の横ロープ材３の端部側を配置すると共に、下側の嵌合溝22に下側の横ロープ材３の端部側を配置し、把持体21，21の挿通孔23Ａ，23Ａに挿通したボルト23を、フランジ部11の挿通孔23Ｂに挿通し、そのボルト23の先端にナット24を螺合することにより、嵌合溝22により横ロープ材３を所定の把持力で把持すると共に、緩衝具４をフランジ部11の平面部13に固定する。尚、この例では、フランジ部11の左側11Ｌと右側11Ｒの何れかに緩衝具４を固定する。   In the on-site mounting operation, as shown in FIG. 1, the shock absorbers 4 are attached to a plurality of support columns 2, 2... At a predetermined interval. The shock absorber 4 is attached in multiple stages. In this case, the end side of the upper horizontal rope member 3 is arranged in the upper fitting groove 22 of the shock absorber 4, and the end side of the lower horizontal rope member 3 is arranged in the lower fitting groove 22. Then, the bolt 23 inserted through the insertion holes 23A and 23A of the gripping bodies 21 and 21 is inserted into the insertion hole 23B of the flange portion 11, and the nut 24 is screwed into the tip of the bolt 23, whereby the fitting groove 22 is obtained. Thus, the horizontal rope member 3 is gripped with a predetermined gripping force, and the shock absorber 4 is fixed to the flat surface portion 13 of the flange portion 11. In this example, the shock absorber 4 is fixed to either the left side 11L or the right side 11R of the flange portion 11.

また、既設の防護柵においても、金網を張り替える際、金網を取り外し、支柱２のフランジ部11に穿孔機により前記貫通孔23Ｂ，23Ｂを穿設すれば、緩衝具４を簡便に取り付けることができる。尚、既設の防護柵の場合は、支柱２の基礎１から突出する高さは３メートル以下のものが例示される。   Further, even in the existing protective fence, when the wire mesh is replaced, the shock absorber 4 can be easily attached by removing the wire mesh and drilling the through holes 23B and 23B in the flange portion 11 of the support column 2 with a punching machine. it can. In the case of an existing guard fence, the height protruding from the foundation 1 of the column 2 is 3 meters or less.

そして、落石などを受けて、把持体21，21は横ロープ材３，３を所定の摩擦力で把持すると共に、所定以上の張力が作用したとき横ロープ材３の摩擦摺動を許容するものであり、前記横ロープ材３に張力が発生すると、嵌合溝22に対して横ロープ材３の端部が摺動摩擦することにより、落石のエネルギーを吸収することができる。尚、ストッパ６が把持体21，21に係止した後は、横ロープ材３により落石のエネルギーに対抗する。   In response to falling rocks, the gripping bodies 21 and 21 grip the horizontal rope members 3 and 3 with a predetermined frictional force and allow the sliding of the horizontal rope member 3 when a tension exceeding a predetermined level is applied. And when tension | tensile_strength generate | occur | produces in the said horizontal rope material 3, the edge part of the horizontal rope material 3 carries out sliding friction with respect to the fitting groove 22, and can absorb the energy of falling rocks. In addition, after the stopper 6 is locked to the grip bodies 21, 21, the horizontal rope material 3 counteracts the energy of falling rocks.

このように本実施例では、所定の間隔で複数の支柱２，２を設け、支柱２，２間に横ロープ材３を設けた防護柵において、横ロープ材３を把持する緩衝具４を用い、この緩衝具４を支柱２の外板たるフランジ部11の外面に設けたから、支柱２のフランジ部11の外面に直接固定することにより、緩衝具４の取付構造を簡略化し、安価にして落石エネルギー吸収効果に優れた防護柵が得られる。   As described above, in this embodiment, the buffer 4 that holds the horizontal rope material 3 is used in the protective fence in which the plurality of support columns 2 and 2 are provided at predetermined intervals and the horizontal rope material 3 is provided between the support columns 2 and 2. Since the shock absorber 4 is provided on the outer surface of the flange portion 11 which is the outer plate of the support column 2, by directly fixing the shock absorber 4 to the outer surface of the flange portion 11 of the support column 2, the mounting structure of the shock absorber 4 can be simplified and reduced in price. A protective fence with excellent energy absorption can be obtained.

また、このように本実施例では、所定の間隔で複数の支柱２，２を設け、支柱２，２間に横ロープ材３を設けた防護柵において、横ロープ材３を複数把持する緩衝具４を用い、この緩衝具４を支柱２の外板たるフランジ部11の外面に設けたから、１つの緩衝具４により複数の横ロープ材３，３を支柱２に取り付けることができる。   As described above, in the present embodiment, a shock absorber that holds a plurality of horizontal rope members 3 in a protective fence in which a plurality of support columns 2 and 2 are provided at predetermined intervals and the horizontal rope members 3 are provided between the support columns 2 and 2. 4, since the shock absorber 4 is provided on the outer surface of the flange portion 11 which is the outer plate of the support column 2, a plurality of horizontal rope members 3 and 3 can be attached to the support column 2 by one shock absorber 4.

また、このように本実施例では、緩衝具４と外板たるフランジ部11とを挿通したボルト23により緩衝具４を支柱２に固定したから、ボルト23を用いて緩衝具４を簡便に取り付けることができる。   Further, in this embodiment, since the shock absorber 4 is fixed to the support column 2 with the bolt 23 inserted through the shock absorber 4 and the flange portion 11 as the outer plate, the shock absorber 4 is simply attached using the bolt 23. be able to.

また、このように本実施例では、外面の平面部13に緩衝具４を固定したから、取り付け易いものとなる。   Further, in this embodiment, since the shock absorber 4 is fixed to the flat portion 13 on the outer surface, it is easy to attach.

また、このように本実施例では、緩衝具４により支柱２の両側に配置した横ロープ材３，３を把持したから、１つの緩衝具４で、その緩衝具４を取り付けた支柱２の両側に横ロープ材３，３を設けることができる。   Further, in this embodiment, since the horizontal rope members 3 and 3 arranged on both sides of the support column 2 are gripped by the shock absorber 4, the both shock absorbers 4 are attached to both sides of the support column 2 to which the shock absorber 4 is attached. The horizontal rope members 3 and 3 can be provided on the side.

また、このように本実施例では、横ロープ材３の端部に緩衝具４に係止するストッパ６を設けたから、横ロープ材３が摩擦摺動した後、緩衝具４にストッパ６が係止して摺動が停止する。   Further, in this embodiment, since the stopper 6 that engages with the shock absorber 4 is provided at the end of the horizontal rope member 3, the stopper 6 is engaged with the shock absorber 4 after the horizontal rope member 3 is frictionally slid. Stops sliding.

また、このように本実施例では、所定の間隔で配置した複数の支柱２，２を備えた既設の防護柵の改修方法において、横ロープ材３を複数把持する緩衝具４を用い、この緩衝具４を支柱２の外板たるフランジ部11の外面に固定して支柱２，２間に横ロープ材３を設けるから、既設の防護柵を改修して落石エネルギー吸収効果を向上することができる。   As described above, in this embodiment, in the method of repairing the existing protective fence provided with the plurality of support columns 2 and 2 arranged at a predetermined interval, the shock absorber 4 that grips a plurality of the horizontal rope members 3 is used, and this shock absorber is used. Since the tool 4 is fixed to the outer surface of the flange portion 11 which is the outer plate of the support column 2 and the horizontal rope member 3 is provided between the support columns 2 and 2, the existing protective fence can be repaired to improve the rock fall energy absorption effect. .

また、実施例上の効果として、把持体21，21とフランジ部11にボルト23を挿通し、そのボルト23の締め付けにより、横ロープ材３の把持と、把持体21，21の支柱２への取付とを行うことができる。また、少なくともフランジ部11側の把持体21の外面21Ｇが略平面をなすから、安定した取付状態が得られる。   Further, as an effect of the embodiment, a bolt 23 is inserted into the gripping bodies 21 and 21 and the flange portion 11, and by tightening the bolt 23, the lateral rope material 3 is gripped and the gripping bodies 21 and 21 are attached to the column 2. Can be attached. In addition, since at least the outer surface 21G of the gripping body 21 on the flange portion 11 side is substantially flat, a stable mounting state can be obtained.

図５及び図６は本発明の実施例２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と、この例では、支柱２のフランジ部11の左側11Ｌと右側11Ｒとに、それぞれほぼ同じ高さ位置で、緩衝具４，４を取付固定し、支柱２，２…間で隣合う左側11Ｌに固定した緩衝具４と右側に固定した緩衝具４に、２本の横ロープ材３，３の左側端部と右側端部とを把持し、各段で２本の横ロープ材３，３を支柱２，２…間に配置している。尚、１つの緩衝具４における上下の横ロープ３，３の間隔は、上下に隣合う上側の緩衝具４の下側の横ロープ材３と下側の緩衝具４の上側の横ロープ材３との間隔より狭い。尚、１つの支柱２において左側11Ｌの緩衝具４と右側11Ｒの緩衝具４との位置を、横ロープ材３，３の端部が干渉しないように上下に僅かにずらしてもよく、例えば嵌合溝22，22の間隔の２分の１程度ずらすことが好ましい。   5 and 6 show a second embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. In this example, the flange portion of the support column 2 is described. The shock absorbers 4 and 4 are attached and fixed to the left side 11L and the right side 11R of 11 at substantially the same height position, and fixed to the right side and the shock absorber 4 fixed to the adjacent left side 11L between the columns 2, 2,. Hold the left end and right end of the two horizontal rope members 3 and 3 on the shock absorber 4, and place the two horizontal rope members 3 and 3 between the supports 2, 2. Yes. In addition, the space | interval of the upper and lower horizontal ropes 3 in one buffer 4 is the horizontal rope material 3 of the lower side of the upper buffer 4 adjacent to the upper and lower sides, and the horizontal rope material 3 of the upper side of the lower buffer 4 Narrower than the interval. In addition, the position of the shock absorber 4 on the left side 11L and the shock absorber 4 on the right side 11R in one strut 2 may be slightly shifted up and down so that the ends of the horizontal rope members 3 and 3 do not interfere with each other. It is preferable to shift by about one half of the interval between the joint grooves 22 and 22.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、緩衝具４により支柱２の一側に配置した複数の横ロープ材３，３を把持したから、１つの緩衝具４で、その緩衝具４を取り付けた支柱２の一側に、複数段に横ロープ材３，３を設けることができる。   As described above, in this embodiment, the same operations and effects as those of the above-described embodiment are achieved. In this embodiment, a plurality of horizontal rope members 3 and 3 arranged on one side of the column 2 by the shock absorber 4 are provided. Therefore, the horizontal rope members 3 and 3 can be provided in a plurality of stages on one side of the column 2 to which the shock absorber 4 is attached.

図７は本発明の実施例を示し、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と、この例では、上記実施例２において、３つの嵌合溝22，22，22を有する緩衝具４を用いており、各段で３本の横ロープ材３，３，３を支柱２，２…間に配置することができる。そして、このように一対の把持体21，21に、平行に設ける嵌合溝22の数は３個でもよく、４個以上でもよい。   FIG. 7 shows an embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-described embodiments, and detailed description thereof will be omitted. A shock absorber 4 having joint grooves 22, 22, 22 is used, and three horizontal rope members 3, 3, 3 can be arranged between the struts 2, 2. In addition, the number of fitting grooves 22 provided in parallel in the pair of gripping bodies 21 and 21 in this way may be three, or may be four or more.

このように本実施例では、上記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 embodiment are obtained.

図８及び図９は本発明の実施例を示し、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と、この例では、横ロープ材３の途中にループ部31を形成し、このループ部31の重合部32における横ロープ材３，３の部分を前記嵌合溝22，22に配置し、その重合部32における横ロープ材３，３の部分を把持体21，21により所定の力で把持している。また、隣合うループ部31，31・・・同士が交差部33により交差して繋がっている。   8 and 9 show an embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof is omitted. In this example, in the middle of the horizontal rope member 3 The loop portion 31 is formed in the loop portion 31, and the portions of the horizontal rope members 3 and 3 in the overlapping portion 32 of the loop portion 31 are disposed in the fitting grooves 22 and 22, and the portions of the horizontal rope members 3 and 3 in the overlap portion 32 are formed. Is gripped by the gripping bodies 21, 21 with a predetermined force. In addition, adjacent loop portions 31, 31...

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３にループ部31を設け、このループ部31の重合部32を緩衝具４により把持したから、ループ部31が縮小する際、重合部32の横ロープ材３が緩衝具４に摩擦摺動する。   As described above, in this embodiment, the same operations and effects as the above embodiment are achieved. In this embodiment, the loop portion 31 is provided in the horizontal rope member 3 and the overlapping portion 32 of the loop portion 31 is provided. Since it is gripped by the shock absorber 4, when the loop portion 31 is contracted, the lateral rope member 3 of the overlapping portion 32 frictionally slides on the shock absorber 4.

図１０は本発明の実施例を示し、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と、この例では、支柱２，２間において、横ロープ材３，３の前又は後、或いは前後両方に木質の杆41を縦方向の向きで並設し、それら杆41により支柱２，２間を塞ぐようにしており、前記杆41としては、間伐材の丸太，竹や各種の丸太などが例示される。この場合、杆41を、各段の横ロープ材３の前側に配置することが好ましく、このようにすることにより、杆41が落石を受けると、落石の衝撃力が、上下多段に設けた各段の横ロープ材３に伝達され、落石の衝撃力を分散させることができる。   FIG. 10 shows an embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-described embodiments, and detailed description thereof will be omitted. In this example, a horizontal rope is interposed between the columns 2 and 2. Wooden fences 41 are juxtaposed in the vertical direction in front of, behind, or both front and rear of the materials 3 and 3, and the fences 41 are closed by the fences 41. Examples are logs of logs, bamboo and various logs. In this case, it is preferable to arrange the heel 41 on the front side of the horizontal rope member 3 at each stage. By doing so, when the heel 41 receives a falling rock, the impact force of the falling rocks is provided in each of the upper and lower multi-stages. It is transmitted to the horizontal rope material 3 of the step, and the impact force of falling rocks can be dispersed.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、支柱２，２間に木質の杆41を設けたから、木質の杆41により落石などの衝撃を吸収できる。そして、杆41を介して、落石の衝撃力を、上下多段に設けた横ロープ材３に伝達することができ、衝撃力を分散させることができる。   As described above, in this embodiment, the same operations and effects as the above-described embodiment are achieved. In this embodiment, the wooden fence 41 is provided between the support columns 2 and 2, so that the fallen rock is caused by the wooden fence 41. Can absorb shocks. And the impact force of a falling rock can be transmitted to the horizontal rope material 3 provided in the upper and lower multistage through the ridge 41, and an impact force can be disperse | distributed.

図１１は本発明の実施例を示し、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と、この例は既設の防護柵の補修に適したものであり、既設の支柱２の山側上部に控えロープ材51の一端を連結し、その控えロープ材51の他端を山側の地山に固定したアンカー52に固定する。   FIG. 11 shows an embodiment of the present invention. The same reference numerals are given to the same parts as the above-mentioned embodiments, and detailed description thereof is omitted. This example is suitable for repairing an existing protective fence. The one end of the retaining rope member 51 is connected to the upper part of the mountain side of the existing support column 2, and the other end of the retaining rope member 51 is fixed to the anchor 52 fixed to the natural mountain on the mountain side.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、補修により支柱２の強度を向上できる。   Thus, in this embodiment, the same operations and effects as in the above embodiment can be achieved, and the strength of the column 2 can be improved by repair.

図１２は本発明の実施例７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と、この例は既設の防護柵の補修に適したものであり、既設の防護柵のＨ型鋼からなる支柱２を補強するに際して補強体61を用い、その補強体61は、コンクリート基礎１に固定する基礎側部62と支柱２に前側又は後側に添える添接部63とを一体に備え、それら基礎側部62と添接部63とにリブ部64を固着し、支柱２の山側と谷側の前後のフランジ部11，11を挟むように、両側に補強体61，61を配置し、その補強体61は、前記基礎側部62をアンカーボルトなどの固定手段65によりコンクリート基礎１に固定することにより固定される。   FIG. 12 shows Embodiment 7 of the present invention. The same reference numerals are assigned to the same parts as those in the above-mentioned embodiments, and detailed description thereof is omitted. This example is suitable for repairing an existing protective fence. The reinforcing body 61 is used to reinforce the pillar 2 made of H-shaped steel of the existing protective fence, and the reinforcing body 61 is attached to the foundation side 62 and the pillar 2 fixed to the concrete foundation 1 on the front side or the rear side. An attaching part 63 to be attached is integrally provided, a rib part 64 is fixed to the base side part 62 and the attaching part 63, and the front and rear flange parts 11 and 11 on the peak side and the valley side are sandwiched. Reinforcing bodies 61 and 61 are arranged on both sides, and the reinforcing body 61 is fixed by fixing the foundation side portion 62 to the concrete foundation 1 by fixing means 65 such as an anchor bolt.

このように本実施例では、上記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 embodiment are obtained.

図１３は本発明の実施例８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と、この例は両側の支柱２，２に緩衝具４をそれぞれ取り付け、これら支柱２，２間において、前記横ロープ材３を分割して分割端部３Ｔ，３Ｔを形成し、これら分割端部３Ｔ，３Ｔを長さ方向に重合させ、これら分割端部３Ｔ，３Ｔを嵌合溝22，22に配置し、把持体21，21により把持し、支柱２，２の中空に緩衝具４を設けている。また、分割端部３Ｔ，３Ｔの端部にストッパ６，６をそれぞれ設ける。尚、図１３中に右側の支柱２の図示しない右隣の支柱にも緩衝具を設け、これらの支柱の間の中空に緩衝具４を設ける。   FIG. 13 shows an eighth embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-mentioned embodiments, and detailed description thereof will be omitted. 4 is attached, and the horizontal rope member 3 is divided between the support columns 2 and 2 to form divided end portions 3T and 3T, and the divided end portions 3T and 3T are overlapped in the length direction, The portions 3T and 3T are arranged in the fitting grooves 22 and 22 and are held by the holding bodies 21 and 21, and the shock absorber 4 is provided in the hollow of the columns 2 and 2. Further, stoppers 6 and 6 are provided at the end portions of the divided end portions 3T and 3T, respectively. In FIG. 13, a shock absorber is also provided on a right adjacent strut (not shown) of the right strut 2, and a shock absorber 4 is provided in a hollow space between these struts.

したがって、支柱２の緩衝具４及び支柱２，２の間の緩衝具４において横ロープ材３が摺動することにより、衝撃力を吸収することができる。   Therefore, the impact force can be absorbed by the lateral rope member 3 sliding in the buffer 4 of the column 2 and the buffer 4 between the columns 2 and 2.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３を把持する緩衝具８を支柱２，２間に設けたから、支柱２，２の間に設けた緩衝具４によっても落石などの衝撃を吸収できる。   Thus, in this embodiment, there are the same operations and effects as in the above embodiment, and in this embodiment, since the shock absorber 8 for gripping the horizontal rope material 3 is provided between the support columns 2 and 2, Shocks such as falling rocks can also be absorbed by the shock absorber 4 provided between the columns 2 and 2.

図１４は本発明の実施例９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と、この例は、支柱２のウエブ部12に、横ロープ材３の端部を挿通する挿通孔71を形成し、この挿通孔71に横ロープ材３を挿通し、その端部に前記ストッパ６を固着している。また、横ロープ材３の端部側を前記把持体21，21により把持し、前記緩衝具４をウエブ部12の外面に設けている。この場合、横ロープ材３に引張力を加えて、その横ロープ材３に緩衝具４を取り付ければ、その引張力により緩衝具４がウエブ部12の外面に当接する。尚、緩衝具４の取付に必要な引張力は、横ロープ材３が大きく撓まない程度の引張力でもよい。また、図１４では、１本の横ロープ材３を図示しているが、上記の実施例のように、嵌合溝22を複数有する緩衝具４により、横ロープ材３を複数把持するようにしてもよい。   FIG. 14 shows a ninth embodiment of the present invention, where the same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. An insertion hole 71 for inserting the end portion of the horizontal rope member 3 is formed, the horizontal rope member 3 is inserted into the insertion hole 71, and the stopper 6 is fixed to the end portion. Further, the end side of the horizontal rope member 3 is held by the holding bodies 21, 21, and the buffer 4 is provided on the outer surface of the web portion 12. In this case, if a tensile force is applied to the horizontal rope member 3 and the shock absorber 4 is attached to the horizontal rope member 3, the shock absorber 4 comes into contact with the outer surface of the web portion 12 by the tensile force. The tensile force necessary for attaching the shock absorber 4 may be a tensile force that does not cause the horizontal rope member 3 to be greatly bent. Further, in FIG. 14, one horizontal rope member 3 is illustrated, but a plurality of horizontal rope members 3 are gripped by the buffer 4 having a plurality of fitting grooves 22 as in the above embodiment. May be.

そして、落石などにより横ロープ材４の途中に所定以上の引張力が発生すると、ウエブ部12が支持体となって緩衝具４を支持し、この緩衝具４に横ロープ材３が摩擦摺動して落石のエネルギーを吸収することができる。   When a predetermined tensile force or more is generated in the middle of the horizontal rope member 4 due to falling rocks or the like, the web portion 12 serves as a support to support the shock absorber 4, and the horizontal rope member 3 frictionally slides on this shock absorber 4. And can absorb the energy of falling rocks.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３を支柱２に挿通し、挿通した側で横ロープ材３に緩衝具４を取り付け、その横ロープ材３の張力を利用して前記緩衝具４が横ロープ材３の外面に当たるように設けたから、特に横ロープ材３の端部を連結する端末の支柱２に、緩衝具４を簡便に取り付けることができる。   As described above, in this embodiment, the same operation and effect as the above-described embodiment are obtained. In this embodiment, the horizontal rope member 3 is inserted into the support column 2 and the horizontal rope member 3 is inserted on the inserted side. Since the shock absorber 4 is attached and the shock absorber 4 is provided so as to contact the outer surface of the horizontal rope member 3 by using the tension of the horizontal rope member 3, the end of the horizontal rope member 3 is particularly connected to the column 2 of the terminal. The shock absorber 4 can be easily attached.

尚、本発明は、前記実施例に限定されるものではなく、種々の変形実施が可能である。例えば、実施例では、緩衝具を支柱の前側（山側）に設けたが、緩衝具を支柱の後側（反山側）に設けてもよい。また、請求項４以外では、鋼管などの平面部を持たない円形の外面に、緩衝具を固定してもよい。さらに、緩衝具を前記支柱の外板の外面に固定する際、間にスペーサや補強などのために平面部を有するプレートなどを介在してもよい。   In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible. For example, in the embodiment, the shock absorber is provided on the front side (mountain side) of the support column, but the shock absorber may be provided on the rear side (anti-mountain side) of the support column. Moreover, you may fix a buffer to the circular outer surface which does not have flat parts, such as a steel pipe, except for Claim 4. Further, when the shock absorber is fixed to the outer surface of the outer plate of the support column, a plate having a flat surface portion may be interposed between the buffer and the spacer for reinforcement or the like.

本発明の実施例１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 1 of this invention. 同上、支柱の平面図である。It is a top view of a support | pillar same as the above. 同上、緩衝具の正面図である。It is a front view of a shock absorber same as the above. 同上、締付け前の緩衝具の側面図である。FIG. 3 is a side view of the shock absorber before tightening. 本発明の実施例２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 2 of this invention. 同上、支柱の平面図である。It is a top view of a support | pillar same as the above. 本発明の実施例３を示す支柱に取り付けた緩衝具の正面図である。It is a front view of the shock absorber attached to the support | pillar which shows Example 3 of this invention. 本発明の実施例４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 4 of this invention. 同上、要部の正面図である。It is a front view of the principal part same as the above. 本発明の実施例５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 5 of this invention. 本発明の実施例６を示す防護柵の側面図である。It is a side view of the guard fence which shows Example 6 of this invention. 本発明の実施例７を示す支柱下部の側面図である。It is a side view of the lower part of the support | pillar which shows Example 7 of this invention. 本発明の実施例８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 8 of this invention. 本発明の実施例８を示す支柱の平面図である。It is a top view of the support | pillar which shows Example 8 of this invention.

符号の説明Explanation of symbols

１ コンクリート基礎
２ 支柱
３ 横ロープ材
４ 緩衝具
６ ストッパ
11 フランジ部（外板）
11Ｌ 左側
11Ｒ 右側
13 平面部
21 把持体
22 嵌合溝
25 締付固定手段
31 ループ部
32 重合部
33 交差部
41 木質の杆 DESCRIPTION OF SYMBOLS 1 Concrete foundation 2 Support | pillar 3 Horizontal rope material 4 Shock absorber 6 Stopper
11 Flange (outer plate)
11L left side
11R right side
13 Plane section
21 Grasping body
22 Mating groove
25 Tightening means
31 Loop section
32 Superposition part
33 Intersection
41 Wooden fence

本発明は、雪崩・落石等における防護柵の改修方法に関する。 The present invention relates to a method for repairing a protective fence in 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、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２）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。
特開平７−１９７４２３号公報 特開２００３−３１３８２８号公報 In addition, a rope shock absorber (for example, Patent Document 2) 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.
JP-A-7-197423 JP 2003-313828 A

上記特許文献２のようは緩衝具を備えた防護柵は、その緩衝作用により落石などのエネルギー吸収効果に優れたものとなるが、Ｕボルトと把持具を備えた緩衝具を用いるため、防護柵の構造が複雑になる面がある。   Although the protection fence provided with the shock absorber as in Patent Document 2 has an excellent energy absorption effect such as falling rocks due to the buffer action, the protection fence is used because the shock absorber provided with the U bolt and the gripping tool is used. There are aspects that make the structure complicated.

また、上記特許文献１に記載の防護柵において、金網などが損傷し、補修工事を行なったとしても、現状を維持するだけで、エネルギー吸収効果を向上することはできない。そこで、補修工事の際に緩衝具を取付けることが考えられるが、Ｈ鋼などの支柱に直接緩衝具を連結することはできないため、支柱に連結部を取付け、或いは支柱を加工する必要が生じ、補修工事において簡単に改造することができない。   Moreover, in the guard fence of the said patent document 1, even if a metal mesh etc. are damaged and repair work is performed, an energy absorption effect cannot be improved only by maintaining the present condition. Therefore, it is conceivable to install a shock absorber during repair work, but since it is not possible to directly connect the shock absorber to a support such as H steel, it is necessary to attach a connecting part to the support or to process the support, It cannot be easily modified during repair work.

そこで、本発明は、エネルギー吸収効果に優れ、支柱への緩衝具の取付けが簡単な防護柵の改修方法を提供することを目的とし、また、緩衝具の取付けにより簡便にエネルギー吸収効果を向上することができる防護柵の改修方法を提供することを目的とする。 Therefore, the present invention has an object to provide a method for repairing a protective fence that is excellent in energy absorption effect and that allows easy mounting of a shock absorber on a support column, and that the energy absorption effect is simply improved by mounting the shock absorber. The purpose is to provide a method of repairing the protective fence.

請求項１の発明は、所定の間隔で配置した複数の支柱を備えた既設の防護柵の改修方法において、複数の横ロープ材を把持する緩衝具を用い、この緩衝具は、前記横ロープ材を所定の摩擦力で把持すると共に前記横ロープ材に所定以上の張力が作用したとき該横ロープ材の摩擦摺動を許容し、前記緩衝具と前記支柱の外板とを挿通したボルトにより前記緩衝具を前記外板の外面の平面部に固定すると共に前記緩衝具により横ロープ材を把持して前記支柱間に前記横ロープ材を設ける方法である。 The invention of claim 1 is a method of refurbishing an existing protective fence provided with a plurality of support posts arranged at a predetermined interval, and uses a shock absorber for gripping a plurality of horizontal rope members. Is gripped with a predetermined frictional force, and when a predetermined tension or more is applied to the horizontal rope member, the frictional sliding of the horizontal rope member is allowed, and the bolt is inserted through the shock absorber and the outer plate of the column. In this method, the shock absorber is fixed to the flat portion of the outer surface of the outer plate, and the horizontal rope material is gripped by the shock absorber to provide the horizontal rope material between the columns .

また、請求項２の発明は、前記緩衝具により前記支柱の両側に配置した前記横ロープ材を把持する方法である。 Moreover, invention of Claim 2 is the method of hold | gripping the said horizontal rope material arrange | positioned on the both sides of the said support | pillar with the said buffer.

また、請求項３の発明は、前記緩衝具により前記支柱の一側に配置した前記複数の横ロープ材を把持する方法である。 The invention of claim 3 is a method of gripping the plurality of horizontal rope members arranged on one side of the support column by the buffer.

また、請求項４の発明は、前記横ロープ材の端部に前記緩衝具に係止するストッパを設ける方法である。 The invention of claim 4 is a method for the stopper for engaging Ru provided in the bumper to the end of the horizontal rope materials.

また、請求項５の発明は、前記支柱間に間伐材を並設し、これら間伐材により前記支柱間を塞ぐ方法である。 Moreover, invention of Claim 5 is the method of arranging the thinning material in parallel between the said support | pillars, and plugging up between the said support | pillars by these thinning materials .

また、請求項６の発明は、前記横ロープ材を把持する緩衝具を前記支柱間に設ける方法である。 Moreover, invention of Claim 6 is the method of providing the shock absorber which hold | grips the said horizontal rope material between the said support | pillars.

また、請求項７の発明は、前記緩衝具は、前記横ロープ材を所定の摩擦力で把持する一対の把持体を備え、これら一対の把持体には、前記ボルトを挿通する挿通孔が穿設され、この挿通孔に対応して、前記外板に挿通孔を穿設し、前記把持体の挿通孔に挿通した前記ボルトを、前記外板の挿通孔に挿通し、そのボルトにナットを螺合することにより、前記横ロープ材を所定の把持力で把持すると共に、前記緩衝具を前記外板の前記平面部に固定する方法である。 According to a seventh aspect of the present invention, the shock absorber includes a pair of gripping bodies for gripping the horizontal rope member with a predetermined frictional force, and the pair of gripping bodies have insertion holes through which the bolts are inserted. Corresponding to the insertion hole, an insertion hole is formed in the outer plate, the bolt inserted into the insertion hole of the gripper is inserted into the insertion hole of the outer plate, and a nut is inserted into the bolt. By screwing, the lateral rope member is gripped with a predetermined gripping force, and the shock absorber is fixed to the flat portion of the outer plate .

請求項１の構成によれば、支柱の外板の外面に直接設けることにより、緩衝具の取付構造を簡略化し、安価にして落石エネルギー吸収効果に優れた防護柵が得られる。   According to the configuration of the first aspect, by providing directly on the outer surface of the outer plate of the support column, it is possible to simplify the mounting structure of the shock absorber, and to obtain a protective fence that is inexpensive and excellent in falling rock energy absorption effect.

また、請求項１の構成によれば、１つの緩衝具により複数の横ロープ材を支柱に取り付けることができる。 Moreover, according to the structure of Claim 1, a several horizontal rope material can be attached to a support | pillar with one buffer.

また、請求項１の構成によれば、ボルトを用いて緩衝具を簡便に取り付けることができる。 Moreover, according to the structure of Claim 1 , a shock absorber can be simply attached using a volt | bolt.

また、請求項１の構成によれば、取り付け易いものとなる。 Moreover, according to the structure of Claim 1 , it becomes easy to attach.

また、請求項２の構成によれば、１つの緩衝具で、その緩衝具を取り付けた支柱の両側に横ロープ材を設けることができる。 Moreover, according to the structure of Claim 2 , a horizontal rope material can be provided in the both sides of the support | pillar which attached the buffer with one buffer.

また、請求項３の構成によれば、１つの緩衝具で、その緩衝具を取り付けた支柱の一側に、複数段に横ロープ材を設けることができる。 Moreover, according to the structure of Claim 3 , a horizontal rope material can be provided in multiple steps | paragraphs by the side of the support | pillar which attached the buffer with one buffer.

また、請求項４の構成によれば、横ロープ材が摩擦摺動した後、緩衝具にストッパが係止して摺動が停止する。 Moreover, according to the structure of Claim 4 , after a horizontal rope material carries out friction sliding, a stopper latches to a buffer and a sliding stops.

また、請求項５の構成によれば、支柱間を塞ぐ間伐材により落石などの衝撃を吸収できる。そして、間伐材を介して、落石の衝撃力を、上下多段に設けた横ロープ材に伝達することができ、衝撃力を分散させることができる。 Moreover, according to the structure of Claim 5 , impacts, such as falling rocks, can be absorbed with the thinning material which block | closes between support | pillars . And the impact force of falling rocks can be transmitted to the horizontal rope material provided in the upper and lower stages through the thinned wood, and the impact force can be dispersed.

また、請求項６の構成によれば、支柱の間に設けた緩衝具によっても落石などの衝撃を吸収できる。 Moreover, according to the structure of Claim 6 , impacts, such as falling rocks, can also be absorbed with the buffer provided between the support | pillars.

また、請求項１の構成によれば、既設の防護柵を改修して落石エネルギー吸収効果を向上することができる。 Moreover, according to the structure of Claim 1 , the existing guard fence can be repaired and the falling rock energy absorption effect can be improved.

また、請求項７の構成によれば、把持体と外板にボルトを挿通し、そのボルトの締め付けにより、横ロープ材の把持と、把持体の支柱への取付とを行うことができる。  Moreover, according to the structure of Claim 7, a bolt can be penetrated to a holding body and an outer plate | board, and the holding | grip of a horizontal rope material and the attachment to the support | pillar can be performed by the bolt tightening.

本発明における好適な実施の形態について、添付図面を参照しながら詳細に説明する。なお、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。各実施例では、従来とは異なる新規な防護柵を採用することにより、従来にない防護柵が得られ、その防護柵について記述する。   Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention. In each embodiment, an unprecedented protective fence is obtained by adopting a new protective fence different from the conventional one, and the protective fence will be described.

以下、本発明の実施例を添付図面を参照して説明する。図１〜図４は本発明の実施例１を示し、同図に示すように、衝撃吸収柵である落石防護柵は、斜面あるいは斜面に並んで基礎たるコンクリート基礎１を設け、このコンクリート基礎１に複数の支柱２…を立設する。前記支柱２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Ｈ型鋼を用い、その下端を前記コンクリート基礎１に固着している。前記支柱２間には横ロープ材３，３が上下段に設けられ、この横ロープ材３の端部を把持する緩衝具４が前記支柱２の前面に設けられ、支柱２，２の間は金網５により遮蔽されている。尚、支柱２は上記のように基礎に固定してもよいし、下部を地中に建て込んで固定してもよいし、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。   Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment of the present invention. As shown in FIG. 1, a rock fall protection fence that is an impact absorbing fence is provided with a concrete foundation 1 that is a foundation alongside a slope or a slope. A plurality of columns 2 are erected on the side. The column 2 is made of H-shaped steel, concrete column, steel pipe, concrete-filled steel pipe, or the like. In this example, H-shaped steel is used and its lower end is fixed to the concrete foundation 1. Horizontal rope members 3 and 3 are provided in the upper and lower stages between the support columns 2, and a shock absorber 4 that holds an end of the horizontal rope material 3 is provided on the front surface of the support columns 2. It is shielded by the wire mesh 5. In addition, the support | pillar 2 may be fixed to a foundation as mentioned above, a lower part may be built and fixed in the ground, a lower part may be fixed to a slope etc. It may be fixed by a material.

前記支柱２は、前後のフランジ部11，11をウエブ部12で連結した断面Ｈ型をなし、それら前後のフランジ部11，11の前後の外面には、平面部13，13が形成されている。また、フランジ部11の内面には前記緩衝具４の取付位置に対応して、金属製などからなる補強プレート14が配置される。   The support column 2 has an H-shaped cross section in which front and rear flange portions 11 and 11 are connected by a web portion 12, and flat portions 13 and 13 are formed on front and rear outer surfaces of the front and rear flange portions 11 and 11, respectively. . A reinforcing plate 14 made of metal or the like is disposed on the inner surface of the flange portion 11 corresponding to the mounting position of the shock absorber 4.

前記緩衝具４は、前記横ロープ材３を所定の摩擦力で把持する一対の把持体21，21を備え、これら把持体21，21の合せ面に、横ロープ材３に嵌合する一対の嵌合溝22，22を形成し、両把持体21，21は、ボルト23とナット24を備えた締付固定手段23，23により締め付けられ、且つ前記支柱２に上下方向多段に固定される。   The shock absorber 4 includes a pair of gripping bodies 21 and 21 for gripping the horizontal rope member 3 with a predetermined frictional force, and a pair of mating surfaces of the gripping bodies 21 and 21 that are fitted to the horizontal rope member 3. The fitting grooves 22 and 22 are formed, and both the gripping bodies 21 and 21 are fastened by fastening fixing means 23 and 23 including a bolt 23 and a nut 24, and are fixed to the column 2 in multiple stages in the vertical direction.

前記把持体21は、支柱２の高さ方向に長い略矩形のブロック状をなし、使用状態で、横方向をなす前記嵌合溝22，22が上下に並ぶ。また、使用状態で、前記嵌合溝22，22を挟んだ把持体21，21の上下には、前記ボルト23を挿通する挿通孔23Ａ，23Ａが穿設され、この挿通孔23Ａ，23Ａに対応して、前記フランジ部11に挿通孔23Ｂ，23Ｂを穿設すると共に、前記補強プレート14に挿通孔23Ｂ，23Ｂを穿設している。尚、前記横ロープ材３の端部には、前記緩衝具４の把持体21，21に係止するストッパ６が固着されている。   The gripping body 21 is formed in a substantially rectangular block shape that is long in the height direction of the support column 2, and the fitting grooves 22, 22 that form a lateral direction are arranged vertically when in use. In use, insertion holes 23A and 23A through which the bolts 23 are inserted are formed above and below the gripping bodies 21 and 21 with the fitting grooves 22 and 22 interposed therebetween, and correspond to the insertion holes 23A and 23A. The flange portion 11 is provided with insertion holes 23B and 23B, and the reinforcing plate 14 is provided with insertion holes 23B and 23B. A stopper 6 is fixed to the end of the horizontal rope member 3 so as to be engaged with the gripping bodies 21 and 21 of the shock absorber 4.

現場での取付け作業においては、図１に示すように、複数並んだ支柱２，２…に対して所定間隔で前記緩衝具４を取り付け、各支柱２には、上下方向に間隔をおいて前記緩衝具４を多段に取り付ける。この場合、緩衝具４における上側の嵌合溝22に上側の横ロープ材３の端部側を配置すると共に、下側の嵌合溝22に下側の横ロープ材３の端部側を配置し、把持体21，21の挿通孔23Ａ，23Ａに挿通したボルト23を、フランジ部11の挿通孔23Ｂに挿通し、そのボルト23の先端にナット24を螺合することにより、嵌合溝22により横ロープ材３を所定の把持力で把持すると共に、緩衝具４をフランジ部11の平面部13に固定する。尚、この例では、フランジ部11の左側11Ｌと右側11Ｒの何れかに緩衝具４を固定する。   In the on-site mounting operation, as shown in FIG. 1, the shock absorbers 4 are attached to a plurality of support columns 2, 2... At a predetermined interval. The shock absorber 4 is attached in multiple stages. In this case, the end side of the upper horizontal rope member 3 is arranged in the upper fitting groove 22 of the shock absorber 4, and the end side of the lower horizontal rope member 3 is arranged in the lower fitting groove 22. Then, the bolt 23 inserted through the insertion holes 23A and 23A of the gripping bodies 21 and 21 is inserted into the insertion hole 23B of the flange portion 11, and the nut 24 is screwed into the tip of the bolt 23, whereby the fitting groove 22 is obtained. Thus, the horizontal rope member 3 is gripped with a predetermined gripping force, and the shock absorber 4 is fixed to the flat surface portion 13 of the flange portion 11. In this example, the shock absorber 4 is fixed to either the left side 11L or the right side 11R of the flange portion 11.

また、既設の防護柵においても、金網を張り替える際、金網を取り外し、支柱２のフランジ部11に穿孔機により前記貫通孔23Ｂ，23Ｂを穿設すれば、緩衝具４を簡便に取り付けることができる。尚、既設の防護柵の場合は、支柱２の基礎１から突出する高さは３メートル以下のものが例示される。   Further, even in the existing protective fence, when the wire mesh is replaced, the shock absorber 4 can be easily attached by removing the wire mesh and drilling the through holes 23B and 23B in the flange portion 11 of the support column 2 with a punching machine. it can. In the case of an existing guard fence, the height protruding from the foundation 1 of the column 2 is 3 meters or less.

そして、落石などを受けて、把持体21，21は横ロープ材３，３を所定の摩擦力で把持すると共に、所定以上の張力が作用したとき横ロープ材３の摩擦摺動を許容するものであり、前記横ロープ材３に張力が発生すると、嵌合溝22に対して横ロープ材３の端部が摺動摩擦することにより、落石のエネルギーを吸収することができる。尚、ストッパ６が把持体21，21に係止した後は、横ロープ材３により落石のエネルギーに対抗する。   In response to falling rocks, the gripping bodies 21 and 21 grip the horizontal rope members 3 and 3 with a predetermined frictional force and allow the sliding of the horizontal rope member 3 when a tension exceeding a predetermined level is applied. And when tension | tensile_strength generate | occur | produces in the said horizontal rope material 3, the edge part of the horizontal rope material 3 carries out sliding friction with respect to the fitting groove 22, and can absorb the energy of falling rocks. In addition, after the stopper 6 is locked to the grip bodies 21, 21, the horizontal rope material 3 counteracts the energy of falling rocks.

このように本実施例では、所定の間隔で配置した複数の支柱２，２を備えた既設の防護柵の改修方法において、複数の横ロープ材３，３を把持する緩衝具４を用い、この緩衝具４は、横ロープ材３を所定の摩擦力で把持すると共に横ロープ材３に所定以上の張力が作用したとき該横ロープ材３の摩擦摺動を許容し、緩衝具４と支柱３の外板たるフランジ部11とを挿通したボルト23により緩衝具４をフランジ部23の外面の平面部13に固定すると共に緩衝具４により横ロープ材３を把持して支柱２，２間に横ロープ材３を設ける方法であるから、支柱２のフランジ部11の外面に直接固定することにより、緩衝具４の取付構造を簡略化し、安価にして落石エネルギー吸収効果に優れた防護柵が得られる。 Thus, in this embodiment, in the repair method of existing safety barrier having a plurality of struts 2 and 2 arranged at a predetermined interval, using the bumper 4 for gripping a plurality of horizontal rope materials 3,3, this The shock absorber 4 grips the horizontal rope material 3 with a predetermined frictional force and allows the horizontal rope material 3 to frictionally slide when a predetermined tension or more acts on the horizontal rope material 3. The shock absorber 4 is fixed to the flat surface portion 13 on the outer surface of the flange portion 23 by the bolt 23 inserted through the flange portion 11 which is the outer plate of the outer plate, and the horizontal rope material 3 is gripped by the shock absorber 4 to be horizontally between the columns 2 and 2. Since the rope material 3 is provided , by directly fixing the rope member 3 to the outer surface of the flange portion 11 of the support column 2, the mounting structure of the shock absorber 4 can be simplified, and a protective fence excellent in the rock fall energy absorption effect can be obtained at a low cost. .

また、このように本実施例では、所定の間隔で複数の支柱２，２を設け、支柱２，２間に横ロープ材３を設けた防護柵において、横ロープ材３を複数把持する緩衝具４を用い、この緩衝具４を支柱２の外板たるフランジ部11の外面に設けたから、１つの緩衝具４により複数の横ロープ材３，３を支柱２に取り付けることができる。   As described above, in the present embodiment, a shock absorber that holds a plurality of horizontal rope members 3 in a protective fence in which a plurality of support columns 2 and 2 are provided at predetermined intervals and the horizontal rope members 3 are provided between the support columns 2 and 2. 4, since the shock absorber 4 is provided on the outer surface of the flange portion 11 which is the outer plate of the support column 2, a plurality of horizontal rope members 3 and 3 can be attached to the support column 2 by one shock absorber 4.

また、このように本実施例では、緩衝具４と外板たるフランジ部11とを挿通したボルト23により緩衝具４を支柱２に固定したから、ボルト23を用いて緩衝具４を簡便に取り付けることができる。   Further, in this embodiment, since the shock absorber 4 is fixed to the support column 2 with the bolt 23 inserted through the shock absorber 4 and the flange portion 11 as the outer plate, the shock absorber 4 is simply attached using the bolt 23. be able to.

また、このように本実施例では、外面の平面部13に緩衝具４を固定したから、取り付け易いものとなる。   Further, in this embodiment, since the shock absorber 4 is fixed to the flat portion 13 on the outer surface, it is easy to attach.

また、このように本実施例では、緩衝具４により支柱２の両側に配置した横ロープ材３，３を把持したから、１つの緩衝具４で、その緩衝具４を取り付けた支柱２の両側に横ロープ材３，３を設けることができる。   Further, in this embodiment, since the horizontal rope members 3 and 3 arranged on both sides of the support column 2 are gripped by the shock absorber 4, the both shock absorbers 4 are attached to both sides of the support column 2 to which the shock absorber 4 is attached. The horizontal rope members 3 and 3 can be provided on the side.

また、このように本実施例では、横ロープ材３の端部に緩衝具４に係止するストッパ６を設けたから、横ロープ材３が摩擦摺動した後、緩衝具４にストッパ６が係止して摺動が停止する。   Further, in this embodiment, since the stopper 6 that engages with the shock absorber 4 is provided at the end of the horizontal rope member 3, the stopper 6 is engaged with the shock absorber 4 after the horizontal rope member 3 is frictionally slid. Stops sliding.

また、このように本実施例では、所定の間隔で配置した複数の支柱２，２を備えた既設の防護柵の改修方法において、横ロープ材３を複数把持する緩衝具４を用い、この緩衝具４を支柱２の外板たるフランジ部11の外面に固定して支柱２，２間に横ロープ材３を設けるから、既設の防護柵を改修して落石エネルギー吸収効果を向上することができる。   As described above, in the present embodiment, in the method of repairing the existing protective fence provided with the plurality of support columns 2 and 2 arranged at a predetermined interval, the shock absorber 4 that grips a plurality of the horizontal rope members 3 is used, and this buffer is used. Since the tool 4 is fixed to the outer surface of the flange portion 11 which is the outer plate of the support column 2 and the horizontal rope material 3 is provided between the support columns 2 and 2, the existing protective fence can be repaired to improve the falling rock energy absorption effect. .

また、このように本実施例では、緩衝具４は、横ロープ材３を所定の摩擦力で把持する一対の把持体21，21を備え、これら一対の把持体21，21には、ボルト23を挿通する挿通孔23Ａ，23Ａが穿設され、この挿通孔23Ａ，23Ａに対応して、外板たるフランジ部11に挿通孔23Ｂ，23Ｂを穿設し、把持体21の挿通孔23Ａに挿通したボルト23を、フランジ部11の挿通孔23Ｂに挿通し、そのボルト23の先端にナット24を螺合することにより、横ロープ材３を所定の把持力で把持すると共に、緩衝具４をフランジ部11の平面部13に固定する方法であり、把持体とフランジ部11にボルト23を挿通し、そのボルト23の締め付けにより、横ロープ材３の把持と、把持体21，21の支柱２への取付とを行うことができる。 As described above, in this embodiment, the shock absorber 4 includes a pair of gripping bodies 21 and 21 that grip the horizontal rope member 3 with a predetermined frictional force, and the pair of gripping bodies 21 and 21 includes a bolt 23. Insertion holes 23A, 23A are formed, and insertion holes 23B, 23B are formed in the flange portion 11 corresponding to the outer plate corresponding to the insertion holes 23A, 23A, and are inserted into the insertion holes 23A of the gripper 21. The bolt 23 is inserted into the insertion hole 23B of the flange portion 11, and the nut 24 is screwed into the tip of the bolt 23, whereby the lateral rope member 3 is gripped with a predetermined gripping force and the shock absorber 4 is flanged. It is a method of fixing to the flat portion 13 of the portion 11, by inserting a bolt 23 into the gripping body and the flange portion 11, and tightening the bolt 23 to grip the horizontal rope material 3 and to the support 2 of the gripping bodies 21 and 21. Can be attached.

また、実施例上の効果として、少なくともフランジ部11側の把持体21の外面21Ｇが略平面をなすから、安定した取付状態が得られる。 Further, as an effect on the embodiment, even without least the outer surface 21G of the gripper 21 of the flange portion 11 side from a substantially flat, stable attachment state can be obtained.

図５及び図６は本発明の実施例２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と、この例では、支柱２のフランジ部11の左側11Ｌと右側11Ｒとに、それぞれほぼ同じ高さ位置で、緩衝具４，４を取付固定し、支柱２，２…間で隣合う左側11Ｌに固定した緩衝具４と右側に固定した緩衝具４に、２本の横ロープ材３，３の左側端部と右側端部とを把持し、各段で２本の横ロープ材３，３を支柱２，２…間に配置している。尚、１つの緩衝具４における上下の横ロープ３，３の間隔は、上下に隣合う上側の緩衝具４の下側の横ロープ材３と下側の緩衝具４の上側の横ロープ材３との間隔より狭い。尚、１つの支柱２において左側11Ｌの緩衝具４と右側11Ｒの緩衝具４との位置を、横ロープ材３，３の端部が干渉しないように上下に僅かにずらしてもよく、例えば嵌合溝22，22の間隔の２分の１程度ずらすことが好ましい。   5 and 6 show a second embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. In this example, the flange portion of the support column 2 is described. The shock absorbers 4 and 4 are attached and fixed to the left side 11L and the right side 11R of 11 at substantially the same height position, and fixed to the right side and the shock absorber 4 fixed to the adjacent left side 11L between the columns 2, 2,. Hold the left end and right end of the two horizontal rope members 3 and 3 on the shock absorber 4, and place the two horizontal rope members 3 and 3 between the supports 2, 2. Yes. In addition, the space | interval of the upper and lower horizontal ropes 3 in one buffer 4 is the horizontal rope material 3 of the lower side of the upper buffer 4 adjacent to the upper and lower sides, and the horizontal rope material 3 of the upper side of the lower buffer 4 Narrower than the interval. In addition, the position of the shock absorber 4 on the left side 11L and the shock absorber 4 on the right side 11R in one strut 2 may be slightly shifted up and down so that the ends of the horizontal rope members 3 and 3 do not interfere with each other. It is preferable to shift by about one half of the interval between the joint grooves 22 and 22.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、緩衝具４により支柱２の一側に配置した複数の横ロープ材３，３を把持したから、１つの緩衝具４で、その緩衝具４を取り付けた支柱２の一側に、複数段に横ロープ材３，３を設けることができる。   As described above, in this embodiment, the same operations and effects as those of the above-described embodiment are achieved. In this embodiment, a plurality of horizontal rope members 3 and 3 arranged on one side of the column 2 by the shock absorber 4 are provided. Therefore, the horizontal rope members 3 and 3 can be provided in a plurality of stages on one side of the column 2 to which the shock absorber 4 is attached.

図７は本発明の実施例を示し、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と、この例では、上記実施例２において、３つの嵌合溝22，22，22を有する緩衝具４を用いており、各段で３本の横ロープ材３，３，３を支柱２，２…間に配置することができる。そして、このように一対の把持体21，21に、平行に設ける嵌合溝22の数は３個でもよく、４個以上でもよい。   FIG. 7 shows an embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-described embodiments, and detailed description thereof will be omitted. A shock absorber 4 having joint grooves 22, 22, 22 is used, and three horizontal rope members 3, 3, 3 can be arranged between the struts 2, 2. In addition, the number of fitting grooves 22 provided in parallel in the pair of gripping bodies 21 and 21 in this way may be three, or may be four or more.

このように本実施例では、上記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 embodiment are obtained.

図８及び図９は本発明の実施例を示し、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と、この例では、横ロープ材３の途中にループ部31を形成し、このループ部31の重合部32における横ロープ材３，３の部分を前記嵌合溝22，22に配置し、その重合部32における横ロープ材３，３の部分を把持体21，21により所定の力で把持している。また、隣合うループ部31，31・・・同士が交差部33により交差して繋がっている。   8 and 9 show an embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof is omitted. In this example, in the middle of the horizontal rope member 3 The loop portion 31 is formed in the loop portion 31, and the portions of the horizontal rope members 3 and 3 in the overlapping portion 32 of the loop portion 31 are disposed in the fitting grooves 22 and 22, and the portions of the horizontal rope members 3 and 3 in the overlap portion 32 are formed. Is gripped by the gripping bodies 21, 21 with a predetermined force. In addition, adjacent loop portions 31, 31...

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３にループ部31を設け、このループ部31の重合部32を緩衝具４により把持したから、ループ部31が縮小する際、重合部32の横ロープ材３が緩衝具４に摩擦摺動する。   As described above, in this embodiment, the same operations and effects as the above embodiment are achieved. In this embodiment, the loop portion 31 is provided in the horizontal rope member 3 and the overlapping portion 32 of the loop portion 31 is provided. Since it is gripped by the shock absorber 4, when the loop portion 31 shrinks, the lateral rope member 3 of the overlapping portion 32 frictionally slides on the shock absorber 4.

図１０は本発明の実施例を示し、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と、この例では、支柱２，２間において、横ロープ材３，３の前又は後、或いは前後両方に木質の杆41を縦方向の向きで並設し、それら杆41により支柱２，２間を塞ぐようにしており、前記杆41としては、間伐材の丸太，竹や各種の丸太などが例示される。この場合、杆41を、各段の横ロープ材３の前側に配置することが好ましく、このようにすることにより、杆41が落石を受けると、落石の衝撃力が、上下多段に設けた各段の横ロープ材３に伝達され、落石の衝撃力を分散させることができる。   FIG. 10 shows an embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-described embodiments, and detailed description thereof will be omitted. In this example, a horizontal rope is interposed between the columns 2 and 2. Wooden fences 41 are juxtaposed in the vertical direction in front of, behind, or both front and rear of the materials 3 and 3, and the fences 41 are closed by the fences 41. Examples are logs of logs, bamboo and various logs. In this case, it is preferable to arrange the heel 41 on the front side of the horizontal rope member 3 at each stage. By doing so, when the heel 41 receives a falling rock, the impact force of the falling rocks is provided in each of the upper and lower multi-stages. It is transmitted to the horizontal rope material 3 of the step, and the impact force of falling rocks can be dispersed.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、支柱２，２間に、杆41である間伐材を並設し、これら間伐材により支柱２，２間を塞ぐから、間伐材により落石などの衝撃を吸収できる。そして、間伐材を介して、落石の衝撃力を、上下多段に設けた横ロープ材３に伝達することができ、衝撃力を分散させることができる。 As described above, in this embodiment, the same operations and effects as the above embodiment are achieved. In this embodiment, the thinning material that is the ridge 41 is arranged in parallel between the columns 2 and 2 , and these thinning operations are performed. Since the space between the columns 2 and 2 is blocked by the material , the impact of falling rocks and the like can be absorbed by the thinned material . And the impact force of falling rocks can be transmitted to the horizontal rope material 3 provided in the upper and lower stages through the thinned wood, and the impact force can be dispersed.

図１１は本発明の実施例を示し、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と、この例は既設の防護柵の補修に適したものであり、既設の支柱２の山側上部に控えロープ材51の一端を連結し、その控えロープ材51の他端を山側の地山に固定したアンカー52に固定する。   FIG. 11 shows an embodiment of the present invention. The same reference numerals are given to the same parts as the above-mentioned embodiments, and detailed description thereof is omitted. This example is suitable for repairing an existing protective fence. One end of the retaining rope member 51 is connected to the upper part of the mountain side of the existing support column 2, and the other end of the retaining rope member 51 is fixed to an anchor 52 fixed to a natural mountain on the mountain side.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、補修により支柱２の強度を向上できる。   Thus, in this embodiment, the same operations and effects as in the above embodiment can be achieved, and the strength of the column 2 can be improved by repair.

図１２は本発明の実施例７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と、この例は既設の防護柵の補修に適したものであり、既設の防護柵のＨ型鋼からなる支柱２を補強するに際して補強体61を用い、その補強体61は、コンクリート基礎１に固定する基礎側部62と支柱２に前側又は後側に添える添接部63とを一体に備え、それら基礎側部62と添接部63とにリブ部64を固着し、支柱２の山側と谷側の前後のフランジ部11，11を挟むように、両側に補強体61，61を配置し、その補強体61は、前記基礎側部62をアンカーボルトなどの固定手段65によりコンクリート基礎１に固定することにより固定される。   FIG. 12 shows Embodiment 7 of the present invention. The same reference numerals are assigned to the same parts as those in the above-mentioned embodiments, and detailed description thereof is omitted. This example is suitable for repairing an existing protective fence. The reinforcing body 61 is used to reinforce the pillar 2 made of H-shaped steel of the existing protective fence, and the reinforcing body 61 is attached to the foundation side 62 and the pillar 2 fixed to the concrete foundation 1 on the front side or the rear side. An attaching part 63 to be attached is integrally provided, a rib part 64 is fixed to the base side part 62 and the attaching part 63, and the front and rear flange parts 11 and 11 on the peak side and the valley side are sandwiched. Reinforcing bodies 61 and 61 are arranged on both sides, and the reinforcing body 61 is fixed by fixing the foundation side portion 62 to the concrete foundation 1 by fixing means 65 such as an anchor bolt.

このように本実施例では、上記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 embodiment are obtained.

図１３は本発明の実施例８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と、この例は両側の支柱２，２に緩衝具４をそれぞれ取り付け、これら支柱２，２間において、前記横ロープ材３を分割して分割端部３Ｔ，３Ｔを形成し、これら分割端部３Ｔ，３Ｔを長さ方向に重合させ、これら分割端部３Ｔ，３Ｔを嵌合溝22，22に配置し、把持体21，21により把持し、支柱２，２の中空に緩衝具４を設けている。また、分割端部３Ｔ，３Ｔの端部にストッパ６，６をそれぞれ設ける。尚、図１３中に右側の支柱２の図示しない右隣の支柱にも緩衝具を設け、これらの支柱の間の中空に緩衝具４を設ける。   FIG. 13 shows an eighth embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-mentioned embodiments, and detailed description thereof will be omitted. 4 is attached, and the horizontal rope member 3 is divided between the support columns 2 and 2 to form divided end portions 3T and 3T, and the divided end portions 3T and 3T are overlapped in the length direction, The portions 3T and 3T are arranged in the fitting grooves 22 and 22 and are held by the holding bodies 21 and 21, and the shock absorber 4 is provided in the hollow of the columns 2 and 2. Further, stoppers 6 and 6 are provided at the end portions of the divided end portions 3T and 3T, respectively. In FIG. 13, a shock absorber is also provided on a right adjacent strut (not shown) of the right strut 2, and a shock absorber 4 is provided in a hollow space between these struts.

したがって、支柱２の緩衝具４及び支柱２，２の間の緩衝具４において横ロープ材３が摺動することにより、衝撃力を吸収することができる。   Therefore, the impact force can be absorbed by the lateral rope member 3 sliding in the buffer 4 of the column 2 and the buffer 4 between the columns 2 and 2.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３を把持する緩衝具８を支柱２，２間に設けたから、支柱２，２の間に設けた緩衝具４によっても落石などの衝撃を吸収できる。   Thus, in this embodiment, there are the same operations and effects as in the above embodiment, and in this embodiment, since the shock absorber 8 for gripping the horizontal rope material 3 is provided between the support columns 2 and 2, Shocks such as falling rocks can also be absorbed by the shock absorber 4 provided between the columns 2 and 2.

図１４は本発明の実施例９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と、この例は、支柱２のウエブ部12に、横ロープ材３の端部を挿通する挿通孔71を形成し、この挿通孔71に横ロープ材３を挿通し、その端部に前記ストッパ６を固着している。また、横ロープ材３の端部側を前記把持体21，21により把持し、前記緩衝具４をウエブ部12の外面に設けている。この場合、横ロープ材３に引張力を加えて、その横ロープ材３に緩衝具４を取り付ければ、その引張力により緩衝具４がウエブ部12の外面に当接する。尚、緩衝具４の取付に必要な引張力は、横ロープ材３が大きく撓まない程度の引張力でもよい。また、図１４では、１本の横ロープ材３を図示しているが、上記の実施例のように、嵌合溝22を複数有する緩衝具４により、横ロープ材３を複数把持するようにしてもよい。   FIG. 14 shows a ninth embodiment of the present invention, where the same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. An insertion hole 71 for inserting the end portion of the horizontal rope member 3 is formed, the horizontal rope member 3 is inserted into the insertion hole 71, and the stopper 6 is fixed to the end portion. Further, the end side of the horizontal rope member 3 is held by the holding bodies 21, 21, and the buffer 4 is provided on the outer surface of the web portion 12. In this case, if a tensile force is applied to the horizontal rope member 3 and the shock absorber 4 is attached to the horizontal rope member 3, the shock absorber 4 comes into contact with the outer surface of the web portion 12 by the tensile force. The tensile force necessary for attaching the shock absorber 4 may be a tensile force that does not cause the horizontal rope member 3 to be greatly bent. Further, in FIG. 14, one horizontal rope member 3 is illustrated, but a plurality of horizontal rope members 3 are gripped by the buffer 4 having a plurality of fitting grooves 22 as in the above embodiment. May be.

そして、落石などにより横ロープ材４の途中に所定以上の引張力が発生すると、ウエブ部12が支持体となって緩衝具４を支持し、この緩衝具４に横ロープ材３が摩擦摺動して落石のエネルギーを吸収することができる。   When a predetermined tensile force or more is generated in the middle of the horizontal rope member 4 due to falling rocks or the like, the web portion 12 serves as a support to support the shock absorber 4, and the horizontal rope member 3 frictionally slides on this shock absorber 4. And can absorb the energy of falling rocks.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３を支柱２に挿通し、挿通した側で横ロープ材３に緩衝具４を取り付け、その横ロープ材３の張力を利用して前記緩衝具４が横ロープ材３の外面に当たるように設けたから、特に横ロープ材３の端部を連結する端末の支柱２に、緩衝具４を簡便に取り付けることができる。   As described above, in this embodiment, the same operation and effect as the above-described embodiment are obtained. In this embodiment, the horizontal rope member 3 is inserted into the support column 2 and the horizontal rope member 3 is inserted on the inserted side. Since the shock absorber 4 is attached and the shock absorber 4 is provided so as to contact the outer surface of the horizontal rope member 3 by using the tension of the horizontal rope member 3, the end of the horizontal rope member 3 is particularly connected to the column 2 of the terminal. The shock absorber 4 can be easily attached.

尚、本発明は、前記実施例に限定されるものではなく、種々の変形実施が可能である。例えば、実施例では、緩衝具を支柱の前側（山側）に設けたが、緩衝具を支柱の後側（反山側）に設けてもよい。また、緩衝具を前記支柱の外板の外面に固定する際、間にスペーサや補強などのために平面部を有するプレートなどを介在してもよい。 In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible. For example, in the embodiment, the shock absorber is provided on the front side (mountain side) of the support column, but the shock absorber may be provided on the rear side (anti-mountain side) of the support column. Also, loose when the fixing to the outer surface of the outer plate of the strut衝具, plate or the like may be interposed with a flat portion for such a spacer and reinforcement between.

本発明の実施例１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 1 of this invention. 同上、支柱の平面図である。It is a top view of a support | pillar same as the above. 同上、緩衝具の正面図である。It is a front view of a shock absorber same as the above. 同上、締付け前の緩衝具の側面図である。FIG. 3 is a side view of the shock absorber before tightening. 本発明の実施例２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 2 of this invention. 同上、支柱の平面図である。It is a top view of a support | pillar same as the above. 本発明の実施例３を示す支柱に取り付けた緩衝具の正面図である。It is a front view of the shock absorber attached to the support | pillar which shows Example 3 of this invention. 本発明の実施例４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 4 of this invention. 同上、要部の正面図である。It is a front view of the principal part same as the above. 本発明の実施例５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 5 of this invention. 本発明の実施例６を示す防護柵の側面図である。It is a side view of the guard fence which shows Example 6 of this invention. 本発明の実施例７を示す支柱下部の側面図である。It is a side view of the lower part of the support | pillar which shows Example 7 of this invention. 本発明の実施例８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 8 of this invention. 本発明の実施例８を示す支柱の平面図である。It is a top view of the support | pillar which shows Example 8 of this invention.

符号の説明Explanation of symbols

１ コンクリート基礎
２ 支柱
３ 横ロープ材
４ 緩衝具
６ ストッパ
11 フランジ部（外板）
11Ｌ 左側
11Ｒ 右側
13 平面部
21 把持体
22 嵌合溝
23 ボルト
23Ａ 挿通孔（把持体の挿通孔）
23Ｂ 挿通孔（外板の挿通孔）
24 ナット
25 締付固定手段
31 ループ部
32 重合部
33 交差部
41 木質の杆（間伐材） DESCRIPTION OF SYMBOLS 1 Concrete foundation 2 Support | pillar 3 Horizontal rope material 4 Shock absorber 6 Stopper
11 Flange (outer plate)
11L left side
11R right side
13 Plane section
21 Grasping body
22 Mating groove
23 volts
23A Insertion hole (insertion hole for gripper)
23B insertion hole (outer plate insertion hole)
24 nuts
25 Tightening means
31 Loop section
32 Superposition part
33 Intersection
41 Wood firewood (thinned wood)

本発明は、雪崩・落石等における防護柵の補強方法に関する。 The present invention relates to a method for reinforcing a protective fence in an avalanche or falling rock.

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、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２）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。
特開平７−１９７４２３号公報 特開２００３−３１３８２８号公報 In addition, a rope shock absorber (for example, Patent Document 2) 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.
JP-A-7-197423 JP 2003-313828 A

上記特許文献２のようは緩衝具を備えた防護柵は、その緩衝作用により落石などのエネルギー吸収効果に優れたものとなるが、Ｕボルトと把持具を備えた緩衝具を用いるため、防護柵の構造が複雑になる面がある。   Although the protection fence provided with the shock absorber as in Patent Document 2 has an excellent energy absorption effect such as falling rocks due to the buffer action, the protection fence is used because the shock absorber provided with the U bolt and the gripping tool is used. There are aspects that make the structure complicated.

また、上記特許文献１に記載の防護柵において、金網などが損傷し、補修工事を行なったとしても、現状を維持するだけで、エネルギー吸収効果を向上することはできない。そこで、補修工事の際に緩衝具を取付けることが考えられるが、Ｈ鋼などの支柱に直接緩衝具を連結することはできないため、支柱に連結部を取付け、或いは支柱を加工する必要が生じ、補修工事において簡単に改造することができない。   Moreover, in the guard fence of the said patent document 1, even if a metal mesh etc. are damaged and repair work is performed, an energy absorption effect cannot be improved only by maintaining the present condition. Therefore, it is conceivable to install a shock absorber during repair work, but since it is not possible to directly connect the shock absorber to a support such as H steel, it is necessary to attach a connecting part to the support or to process the support, It cannot be easily modified during repair work.

そこで、本発明は、エネルギー吸収効果に優れ、支柱への緩衝具の取付けが簡単な防護柵を提供することを目的とし、また、緩衝具の取付けにより簡便にエネルギー吸収効果を向上することができる防護柵の補強方法を提供することを目的とする。 Then, this invention aims at providing the protection fence which is excellent in energy absorption effect, and is easy to attach the shock absorber to the support, and can improve the energy absorption effect simply by attaching the shock absorber. It aims at providing the reinforcement method of a protection fence.

請求項１の発明は、所定の間隔で配置した複数の支柱を備えた既設の防護柵の補強方法において、複数の横ロープ材を把持する緩衝具を用い、この緩衝具は、前記横ロープ材の端部を所定の摩擦力で把持する一対の把持体を備えると共に前記横ロープ材に所定以上の張力が作用したとき該横ロープ材の摩擦摺動を許容し、前記一対の把持体と前記支柱の外板とを挿通したボルトにより前記一対の把持体を前記外板の外面の平面部に固定すると共に前記一対の把持体により横ロープ材を把持して前記支柱間に前記横ロープ材を設け、前記一対の把持体には、前記ボルトを挿通する挿通孔が穿設され、この挿通孔に対応して、前記外板に挿通孔を穿設し、前記一対の把持体の挿通孔に挿通した前記ボルトを、前記外板の挿通孔に挿通し、そのボルトにナットを螺合することにより、前記横ロープ材の端部を所定の把持力で把持すると共に、前記一対の把持体を前記外板の前記平面部に固定する方法である。 The invention of claim 1 is a method of reinforcing an existing guard fence provided with a plurality of support posts arranged at a predetermined interval, and uses a shock absorber for gripping a plurality of horizontal rope members. the end allows frictional sliding of lateral rope materials when predetermined or more tensile force is applied to the horizontal rope materials provided with a pair of grippers for gripping a predetermined frictional force, the said pair of grippers The pair of gripping bodies are fixed to the flat portion of the outer surface of the outer plate by bolts inserted through the outer plates of the columns, and the horizontal rope members are held between the columns by holding the horizontal rope members by the pair of holding members. The pair of gripping bodies are provided with insertion holes through which the bolts are inserted. Corresponding to the insertion holes, through holes are formed in the outer plate, and the insertion holes of the pair of gripping bodies are formed. Insert the inserted bolt through the insertion hole of the outer plate, By screwing the nut, while gripping the ends of the horizontal rope materials with a predetermined gripping force, a method of fixing the pair of gripping members on the planar portion of the outer plate.

また、請求項２の発明は、前記緩衝具により前記支柱の両側に配置した前記横ロープ材を把持する方法である。   Moreover, invention of Claim 2 is the method of hold | gripping the said horizontal rope material arrange | positioned on the both sides of the said support | pillar with the said buffer.

また、請求項３の発明は、前記緩衝具により前記支柱の一側に配置した前記複数の横ロープ材を把持する方法である。   The invention of claim 3 is a method of gripping the plurality of horizontal rope members arranged on one side of the support column by the buffer.

また、請求項４の発明は、前記横ロープ材の端部に前記緩衝具に係止するストッパを設ける方法である。   Moreover, invention of Claim 4 is the method of providing the stopper latched to the said buffer tool in the edge part of the said horizontal rope material.

また、請求項５の発明は、前記支柱間に間伐材を並設し、これら間伐材により前記支柱間を塞ぐ方法である。   Moreover, invention of Claim 5 is the method of arranging the thinning material in parallel between the said support | pillars, and plugging up between the said support | pillars by these thinning materials.

請求項１の構成によれば、支柱の外板の外面に直接設けることにより、緩衝具の取付構造を簡略化し、安価にして落石エネルギー吸収効果に優れた防護柵が得られる。   According to the configuration of the first aspect, by providing directly on the outer surface of the outer plate of the support column, it is possible to simplify the mounting structure of the shock absorber, and to obtain a protective fence that is inexpensive and excellent in falling rock energy absorption effect.

また、請求項１の構成によれば、１つの緩衝具により複数の横ロープ材を支柱に取り付けることができる。   Moreover, according to the structure of Claim 1, a several horizontal rope material can be attached to a support | pillar with one buffer.

また、請求項１の構成によれば、ボルトを用いて緩衝具を簡便に取り付けることができる。   Moreover, according to the structure of Claim 1, a shock absorber can be simply attached using a volt | bolt.

また、請求項１の構成によれば、取り付け易いものとなる。   Moreover, according to the structure of Claim 1, it becomes easy to attach.

また、請求項２の構成によれば、１つの緩衝具で、その緩衝具を取り付けた支柱の両側に横ロープ材を設けることができる。   Moreover, according to the structure of Claim 2, a horizontal rope material can be provided in the both sides of the support | pillar which attached the buffer with one buffer.

また、請求項３の構成によれば、１つの緩衝具で、その緩衝具を取り付けた支柱の一側に、複数段に横ロープ材を設けることができる。   Moreover, according to the structure of Claim 3, a horizontal rope material can be provided in multiple steps | paragraphs by the side of the support | pillar which attached the buffer with one buffer.

また、請求項４の構成によれば、横ロープ材が摩擦摺動した後、緩衝具にストッパが係止して摺動が停止する。   Moreover, according to the structure of Claim 4, after a horizontal rope material carries out friction sliding, a stopper latches to a buffer and a sliding stops.

また、請求項５の構成によれば、支柱間を塞ぐ間伐材により落石などの衝撃を吸収できる。そして、間伐材を介して、落石の衝撃力を、上下多段に設けた横ロープ材に伝達することができ、衝撃力を分散させることができる。   Moreover, according to the structure of Claim 5, impacts, such as falling rocks, can be absorbed with the thinning material which block | closes between support | pillars. And the impact force of falling rocks can be transmitted to the horizontal rope material provided in the upper and lower stages through the thinned wood, and the impact force can be dispersed.

また、請求項１の構成によれば、既設の防護柵を補強して落石エネルギー吸収効果を向上することができる。 Moreover, according to the structure of Claim 1, the existing guard fence can be reinforced and the falling rock energy absorption effect can be improved.

また、請求項１の構成によれば、把持体と外板にボルトを挿通し、そのボルトの締め付けにより、横ロープ材の把持と、把持体の支柱への取付とを行うことができる。 Moreover, according to the structure of Claim 1 , a bolt can be penetrated to a holding body and an outer plate | board, and a horizontal rope material can be hold | gripped and the attachment to a support | pillar can be performed by the bolt tightening.

本発明における好適な実施の形態について、添付図面を参照しながら詳細に説明する。なお、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。各実施例では、従来とは異なる新規な防護柵を採用することにより、従来にない防護柵が得られ、その防護柵について記述する。   Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention. In each embodiment, an unprecedented protective fence is obtained by adopting a new protective fence different from the conventional one, and the protective fence will be described.

以下、本発明の実施例を添付図面を参照して説明する。図１〜図４は本発明の実施例１を示し、同図に示すように、衝撃吸収柵である落石防護柵は、斜面あるいは斜面に並んで基礎たるコンクリート基礎１を設け、このコンクリート基礎１に複数の支柱２…を立設する。前記支柱２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Ｈ型鋼を用い、その下端を前記コンクリート基礎１に固着している。前記支柱２間には横ロープ材３，３が上下段に設けられ、この横ロープ材３の端部を把持する緩衝具４が前記支柱２の前面に設けられ、支柱２，２の間は金網５により遮蔽されている。尚、支柱２は上記のように基礎に固定してもよいし、下部を地中に建て込んで固定してもよいし、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。   Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment of the present invention. As shown in FIG. 1, a rock fall protection fence that is an impact absorbing fence is provided with a concrete foundation 1 that is a foundation alongside a slope or a slope. A plurality of columns 2 are erected on the side. The column 2 is made of H-shaped steel, concrete column, steel pipe, concrete-filled steel pipe, or the like. In this example, H-shaped steel is used and its lower end is fixed to the concrete foundation 1. Horizontal rope members 3 and 3 are provided in the upper and lower stages between the support columns 2, and a shock absorber 4 that holds an end of the horizontal rope material 3 is provided on the front surface of the support columns 2. It is shielded by the wire mesh 5. In addition, the support | pillar 2 may be fixed to a foundation as mentioned above, a lower part may be built and fixed in the ground, a lower part may be fixed to a slope etc. It may be fixed by a material.

前記支柱２は、前後のフランジ部11，11をウエブ部12で連結した断面Ｈ型をなし、それら前後のフランジ部11，11の前後の外面には、平面部13，13が形成されている。また、フランジ部11の内面には前記緩衝具４の取付位置に対応して、金属製などからなる補強プレート14が配置される。   The support column 2 has an H-shaped cross section in which front and rear flange portions 11 and 11 are connected by a web portion 12, and flat portions 13 and 13 are formed on front and rear outer surfaces of the front and rear flange portions 11 and 11, respectively. . A reinforcing plate 14 made of metal or the like is disposed on the inner surface of the flange portion 11 corresponding to the mounting position of the shock absorber 4.

前記緩衝具４は、前記横ロープ材３を所定の摩擦力で把持する一対の把持体21，21を備え、これら把持体21，21の合せ面に、横ロープ材３に嵌合する一対の嵌合溝22，22を形成し、両把持体21，21は、ボルト23とナット24を備えた締付固定手段23，23により締め付けられ、且つ前記支柱２に上下方向多段に固定される。   The shock absorber 4 includes a pair of gripping bodies 21 and 21 for gripping the horizontal rope member 3 with a predetermined frictional force, and a pair of mating surfaces of the gripping bodies 21 and 21 that are fitted to the horizontal rope member 3. The fitting grooves 22 and 22 are formed, and both the gripping bodies 21 and 21 are fastened by fastening fixing means 23 and 23 including a bolt 23 and a nut 24, and are fixed to the column 2 in multiple stages in the vertical direction.

前記把持体21は、支柱２の高さ方向に長い略矩形のブロック状をなし、使用状態で、横方向をなす前記嵌合溝22，22が上下に並ぶ。また、使用状態で、前記嵌合溝22，22を挟んだ把持体21，21の上下には、前記ボルト23を挿通する挿通孔23Ａ，23Ａが穿設され、この挿通孔23Ａ，23Ａに対応して、前記フランジ部11に挿通孔23Ｂ，23Ｂを穿設すると共に、前記補強プレート14に挿通孔23Ｂ，23Ｂを穿設している。尚、前記横ロープ材３の端部には、前記緩衝具４の把持体21，21に係止するストッパ６が固着されている。   The gripping body 21 is formed in a substantially rectangular block shape that is long in the height direction of the support column 2, and the fitting grooves 22, 22 that form a lateral direction are arranged vertically when in use. In use, insertion holes 23A and 23A through which the bolts 23 are inserted are formed above and below the gripping bodies 21 and 21 with the fitting grooves 22 and 22 interposed therebetween, and correspond to the insertion holes 23A and 23A. The flange portion 11 is provided with insertion holes 23B and 23B, and the reinforcing plate 14 is provided with insertion holes 23B and 23B. A stopper 6 is fixed to the end of the horizontal rope member 3 so as to be engaged with the gripping bodies 21 and 21 of the shock absorber 4.

現場での取付け作業においては、図１に示すように、複数並んだ支柱２，２…に対して所定間隔で前記緩衝具４を取り付け、各支柱２には、上下方向に間隔をおいて前記緩衝具４を多段に取り付ける。この場合、緩衝具４における上側の嵌合溝22に上側の横ロープ材３の端部側を配置すると共に、下側の嵌合溝22に下側の横ロープ材３の端部側を配置し、把持体21，21の挿通孔23Ａ，23Ａに挿通したボルト23を、フランジ部11の挿通孔23Ｂに挿通し、そのボルト23の先端にナット24を螺合することにより、嵌合溝22により横ロープ材３を所定の把持力で把持すると共に、緩衝具４をフランジ部11の平面部13に固定する。尚、この例では、フランジ部11の左側11Ｌと右側11Ｒの何れかに緩衝具４を固定する。   In the on-site mounting operation, as shown in FIG. 1, the shock absorbers 4 are attached to a plurality of support columns 2, 2... At a predetermined interval. The shock absorber 4 is attached in multiple stages. In this case, the end side of the upper horizontal rope member 3 is arranged in the upper fitting groove 22 of the shock absorber 4, and the end side of the lower horizontal rope member 3 is arranged in the lower fitting groove 22. Then, the bolt 23 inserted through the insertion holes 23A and 23A of the gripping bodies 21 and 21 is inserted into the insertion hole 23B of the flange portion 11, and the nut 24 is screwed into the tip of the bolt 23, whereby the fitting groove 22 is obtained. Thus, the horizontal rope member 3 is gripped with a predetermined gripping force, and the shock absorber 4 is fixed to the flat surface portion 13 of the flange portion 11. In this example, the shock absorber 4 is fixed to either the left side 11L or the right side 11R of the flange portion 11.

また、既設の防護柵においても、金網を張り替える際、金網を取り外し、支柱２のフランジ部11に穿孔機により前記貫通孔23Ｂ，23Ｂを穿設すれば、緩衝具４を簡便に取り付けることができる。尚、既設の防護柵の場合は、支柱２の基礎１から突出する高さは３メートル以下のものが例示される。   Further, even in the existing protective fence, when the wire mesh is replaced, the shock absorber 4 can be easily attached by removing the wire mesh and drilling the through holes 23B and 23B in the flange portion 11 of the support column 2 with a punching machine. it can. In the case of an existing guard fence, the height protruding from the foundation 1 of the column 2 is 3 meters or less.

そして、落石などを受けて、把持体21，21は横ロープ材３，３を所定の摩擦力で把持すると共に、所定以上の張力が作用したとき横ロープ材３の摩擦摺動を許容するものであり、前記横ロープ材３に張力が発生すると、嵌合溝22に対して横ロープ材３の端部が摺動摩擦することにより、落石のエネルギーを吸収することができる。尚、ストッパ６が把持体21，21に係止した後は、横ロープ材３により落石のエネルギーに対抗する。   In response to falling rocks, the gripping bodies 21 and 21 grip the horizontal rope members 3 and 3 with a predetermined frictional force and allow the sliding of the horizontal rope member 3 when a tension exceeding a predetermined level is applied. And when tension | tensile_strength generate | occur | produces in the said horizontal rope material 3, the edge part of the horizontal rope material 3 carries out sliding friction with respect to the fitting groove 22, and can absorb the energy of falling rocks. In addition, after the stopper 6 is locked to the grip bodies 21, 21, the horizontal rope material 3 counteracts the energy of falling rocks.

このように本実施例では、所定の間隔で配置した複数の支柱２，２を備えた既設の防護柵の補強方法において、複数の横ロープ材３，３を把持する緩衝具４を用い、この緩衝具４は、横ロープ材３を所定の摩擦力で把持すると共に横ロープ材３に所定以上の張力が作用したとき該横ロープ材３の摩擦摺動を許容し、緩衝具４と支柱３の外板たるフランジ部11とを挿通したボルト23により緩衝具４をフランジ部23の外面の平面部13に固定すると共に緩衝具４により横ロープ材３を把持して支柱２，２間に横ロープ材３を設ける方法であるから、支柱２のフランジ部11の外面に直接固定することにより、緩衝具４の取付構造を簡略化し、安価にして落石エネルギー吸収効果に優れた防護柵が得られる。 As described above, in this embodiment, in the reinforcing method of the existing protective fence provided with the plurality of support columns 2 and 2 arranged at a predetermined interval, the shock absorber 4 that holds the plurality of horizontal rope members 3 and 3 is used. The shock absorber 4 grips the horizontal rope material 3 with a predetermined frictional force and allows the horizontal rope material 3 to frictionally slide when a predetermined tension or more acts on the horizontal rope material 3. The shock absorber 4 is fixed to the flat surface portion 13 on the outer surface of the flange portion 23 by the bolt 23 inserted through the flange portion 11 which is the outer plate of the outer plate, and the horizontal rope material 3 is gripped by the shock absorber 4 to be horizontally between the columns 2 and 2. Since the rope material 3 is provided, by directly fixing the rope member 3 to the outer surface of the flange portion 11 of the support column 2, the mounting structure of the shock absorber 4 can be simplified, and a protective fence excellent in the rock fall energy absorption effect can be obtained at a low cost. .

また、このように本実施例では、所定の間隔で複数の支柱２，２を設け、支柱２，２間に横ロープ材３を設けた防護柵において、横ロープ材３を複数把持する緩衝具４を用い、この緩衝具４を支柱２の外板たるフランジ部11の外面に設けたから、１つの緩衝具４により複数の横ロープ材３，３を支柱２に取り付けることができる。   As described above, in the present embodiment, a shock absorber that holds a plurality of horizontal rope members 3 in a protective fence in which a plurality of support columns 2 and 2 are provided at predetermined intervals and the horizontal rope members 3 are provided between the support columns 2 and 2. 4, since the shock absorber 4 is provided on the outer surface of the flange portion 11 which is the outer plate of the support column 2, a plurality of horizontal rope members 3 and 3 can be attached to the support column 2 by one shock absorber 4.

また、このように本実施例では、緩衝具４と外板たるフランジ部11とを挿通したボルト23により緩衝具４を支柱２に固定したから、ボルト23を用いて緩衝具４を簡便に取り付けることができる。   Further, in this embodiment, since the shock absorber 4 is fixed to the support column 2 with the bolt 23 inserted through the shock absorber 4 and the flange portion 11 as the outer plate, the shock absorber 4 is simply attached using the bolt 23. be able to.

また、このように本実施例では、外面の平面部13に緩衝具４を固定したから、取り付け易いものとなる。   Further, in this embodiment, since the shock absorber 4 is fixed to the flat portion 13 on the outer surface, it is easy to attach.

また、このように本実施例では、緩衝具４により支柱２の両側に配置した横ロープ材３，３を把持したから、１つの緩衝具４で、その緩衝具４を取り付けた支柱２の両側に横ロープ材３，３を設けることができる。   Further, in this embodiment, since the horizontal rope members 3 and 3 arranged on both sides of the support column 2 are gripped by the shock absorber 4, the both shock absorbers 4 are attached to both sides of the support column 2 to which the shock absorber 4 is attached. The horizontal rope members 3 and 3 can be provided on the side.

また、このように本実施例では、横ロープ材３の端部に緩衝具４に係止するストッパ６を設けたから、横ロープ材３が摩擦摺動した後、緩衝具４にストッパ６が係止して摺動が停止する。   Further, in this embodiment, since the stopper 6 that engages with the shock absorber 4 is provided at the end of the horizontal rope member 3, the stopper 6 is engaged with the shock absorber 4 after the horizontal rope member 3 is frictionally slid. Stops sliding.

また、このように本実施例では、所定の間隔で配置した複数の支柱２，２を備えた既設の防護柵の補強方法において、横ロープ材３を複数把持する緩衝具４を用い、この緩衝具４を支柱２の外板たるフランジ部11の外面に固定して支柱２，２間に横ロープ材３を設けるから、既設の防護柵を補強して落石エネルギー吸収効果を向上することができる。 As described above, in this embodiment, in the reinforcement method of the existing protective fence provided with the plurality of support columns 2 and 2 arranged at a predetermined interval, the buffer 4 that grips a plurality of the horizontal rope members 3 is used, and this buffer is used. Since the tool 4 is fixed to the outer surface of the flange portion 11 that is the outer plate of the support column 2 and the horizontal rope member 3 is provided between the support columns 2 and 2, the existing protective fence can be reinforced to improve the rock fall energy absorption effect. .

また、このように本実施例では、緩衝具４は、横ロープ材３を所定の摩擦力で把持する一対の把持体21，21を備え、これら一対の把持体21，21には、ボルト23を挿通する挿通孔23Ａ，23Ａが穿設され、この挿通孔23Ａ，23Ａに対応して、外板たるフランジ部11に挿通孔23Ｂ，23Ｂを穿設し、把持体21の挿通孔23Ａに挿通したボルト23を、フランジ部11の挿通孔23Ｂに挿通し、そのボルト23の先端にナット24を螺合することにより、横ロープ材３を所定の把持力で把持すると共に、緩衝具４をフランジ部11の平面部13に固定する方法であり、把持体とフランジ部11にボルト23を挿通し、そのボルト23の締め付けにより、横ロープ材３の把持と、把持体21，21の支柱２への取付とを行うことができる。   As described above, in this embodiment, the shock absorber 4 includes the pair of gripping bodies 21 and 21 that grip the lateral rope member 3 with a predetermined frictional force, and the pair of gripping bodies 21 and 21 includes a bolt 23. Insertion holes 23A, 23A are formed, corresponding to the insertion holes 23A, 23A, the insertion holes 23B, 23B are formed in the flange portion 11 which is the outer plate, and the insertion holes 23A of the gripper 21 are inserted. The bolt 23 is inserted into the insertion hole 23B of the flange portion 11, and the nut 24 is screwed onto the tip of the bolt 23, whereby the lateral rope member 3 is gripped with a predetermined gripping force and the shock absorber 4 is flanged. It is a method of fixing to the flat portion 13 of the portion 11, by inserting a bolt 23 into the gripping body and the flange portion 11, and tightening the bolt 23 to grip the lateral rope material 3 and to the support 2 of the gripping bodies 21 and 21. Can be attached.

また、実施例上の効果として、少なくともフランジ部11側の把持体21の外面21Ｇが略平面をなすから、安定した取付状態が得られる。   Further, as an effect on the embodiment, since at least the outer surface 21G of the gripping body 21 on the flange portion 11 side is substantially flat, a stable mounting state can be obtained.

図５及び図６は本発明の実施例２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と、この例では、支柱２のフランジ部11の左側11Ｌと右側11Ｒとに、それぞれほぼ同じ高さ位置で、緩衝具４，４を取付固定し、支柱２，２…間で隣合う左側11Ｌに固定した緩衝具４と右側に固定した緩衝具４に、２本の横ロープ材３，３の左側端部と右側端部とを把持し、各段で２本の横ロープ材３，３を支柱２，２…間に配置している。尚、１つの緩衝具４における上下の横ロープ３，３の間隔は、上下に隣合う上側の緩衝具４の下側の横ロープ材３と下側の緩衝具４の上側の横ロープ材３との間隔より狭い。尚、１つの支柱２において左側11Ｌの緩衝具４と右側11Ｒの緩衝具４との位置を、横ロープ材３，３の端部が干渉しないように上下に僅かにずらしてもよく、例えば嵌合溝22，22の間隔の２分の１程度ずらすことが好ましい。   5 and 6 show a second embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. In this example, the flange portion of the support column 2 is described. The shock absorbers 4 and 4 are attached and fixed to the left side 11L and the right side 11R of 11 at substantially the same height position, and fixed to the right side and the shock absorber 4 fixed to the adjacent left side 11L between the columns 2, 2,. Hold the left end and right end of the two horizontal rope members 3 and 3 on the shock absorber 4, and place the two horizontal rope members 3 and 3 between the supports 2, 2. Yes. In addition, the space | interval of the upper and lower horizontal ropes 3 in one buffer 4 is the horizontal rope material 3 of the lower side of the upper buffer 4 adjacent to the upper and lower sides, and the horizontal rope material 3 of the upper side of the lower buffer 4 Narrower than the interval. In addition, the position of the shock absorber 4 on the left side 11L and the shock absorber 4 on the right side 11R in one strut 2 may be slightly shifted up and down so that the ends of the horizontal rope members 3 and 3 do not interfere with each other. It is preferable to shift by about one half of the interval between the joint grooves 22 and 22.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、緩衝具４により支柱２の一側に配置した複数の横ロープ材３，３を把持したから、１つの緩衝具４で、その緩衝具４を取り付けた支柱２の一側に、複数段に横ロープ材３，３を設けることができる。   As described above, in this embodiment, the same operations and effects as those of the above-described embodiment are achieved. In this embodiment, a plurality of horizontal rope members 3 and 3 arranged on one side of the column 2 by the shock absorber 4 are provided. Therefore, the horizontal rope members 3 and 3 can be provided in a plurality of stages on one side of the column 2 to which the shock absorber 4 is attached.

図７は本発明の実施例を示し、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と、この例では、上記実施例２において、３つの嵌合溝22，22，22を有する緩衝具４を用いており、各段で３本の横ロープ材３，３，３を支柱２，２…間に配置することができる。そして、このように一対の把持体21，21に、平行に設ける嵌合溝22の数は３個でもよく、４個以上でもよい。   FIG. 7 shows an embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-described embodiments, and detailed description thereof will be omitted. A shock absorber 4 having joint grooves 22, 22, 22 is used, and three horizontal rope members 3, 3, 3 can be arranged between the struts 2, 2. In addition, the number of fitting grooves 22 provided in parallel in the pair of gripping bodies 21 and 21 in this way may be three, or may be four or more.

このように本実施例では、上記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 embodiment are obtained.

図８及び図９は本発明の実施例を示し、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と、この例では、横ロープ材３の途中にループ部31を形成し、このループ部31の重合部32における横ロープ材３，３の部分を前記嵌合溝22，22に配置し、その重合部32における横ロープ材３，３の部分を把持体21，21により所定の力で把持している。また、隣合うループ部31，31・・・同士が交差部33により交差して繋がっている。   8 and 9 show an embodiment of the present invention. The same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof is omitted. In this example, in the middle of the horizontal rope member 3 The loop portion 31 is formed in the loop portion 31, and the portions of the horizontal rope members 3 and 3 in the overlapping portion 32 of the loop portion 31 are disposed in the fitting grooves 22 and 22, and the portions of the horizontal rope members 3 and 3 in the overlap portion 32 are formed. Is gripped by the gripping bodies 21, 21 with a predetermined force. In addition, adjacent loop portions 31, 31...

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３にループ部31を設け、このループ部31の重合部32を緩衝具４により把持したから、ループ部31が縮小する際、重合部32の横ロープ材３が緩衝具４に摩擦摺動する。   As described above, in this embodiment, the same operations and effects as the above embodiment are achieved. In this embodiment, the loop portion 31 is provided in the horizontal rope member 3 and the overlapping portion 32 of the loop portion 31 is provided. Since it is gripped by the shock absorber 4, when the loop portion 31 is contracted, the lateral rope member 3 of the overlapping portion 32 frictionally slides on the shock absorber 4.

図１０は本発明の実施例を示し、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と、この例では、支柱２，２間において、横ロープ材３，３の前又は後、或いは前後両方に木質の杆41を縦方向の向きで並設し、それら杆41により支柱２，２間を塞ぐようにしており、前記杆41としては、間伐材の丸太，竹や各種の丸太などが例示される。この場合、杆41を、各段の横ロープ材３の前側に配置することが好ましく、このようにすることにより、杆41が落石を受けると、落石の衝撃力が、上下多段に設けた各段の横ロープ材３に伝達され、落石の衝撃力を分散させることができる。   FIG. 10 shows an embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-described embodiments, and detailed description thereof will be omitted. In this example, a horizontal rope is interposed between the columns 2 and 2. Wooden fences 41 are juxtaposed in the vertical direction in front of, behind, or both front and rear of the materials 3 and 3, and the fences 41 are closed by the fences 41. Examples are logs of logs, bamboo and various logs. In this case, it is preferable to arrange the heel 41 on the front side of the horizontal rope member 3 at each stage. By doing so, when the heel 41 receives a falling rock, the impact force of the falling rocks is provided in each of the upper and lower multi-stages. It is transmitted to the horizontal rope material 3 of the step, and the impact force of falling rocks can be dispersed.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、支柱２，２間に、杆41である間伐材を並設し、これら間伐材により支柱２，２間を塞ぐから、間伐材により落石などの衝撃を吸収できる。そして、間伐材を介して、落石の衝撃力を、上下多段に設けた横ロープ材３に伝達することができ、衝撃力を分散させることができる。   As described above, in this embodiment, the same operations and effects as the above embodiment are achieved. In this embodiment, the thinning material that is the ridge 41 is arranged in parallel between the columns 2 and 2, and these thinning operations are performed. Since the space between the columns 2 and 2 is closed by the material, the impact of falling rocks can be absorbed by the thinned material. And the impact force of falling rocks can be transmitted to the horizontal rope material 3 provided in the upper and lower stages through the thinned wood, and the impact force can be dispersed.

図１１は本発明の実施例を示し、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と、この例は既設の防護柵の補修に適したものであり、既設の支柱２の山側上部に控えロープ材51の一端を連結し、その控えロープ材51の他端を山側の地山に固定したアンカー52に固定する。   FIG. 11 shows an embodiment of the present invention. The same reference numerals are given to the same parts as the above-mentioned embodiments, and detailed description thereof is omitted. This example is suitable for repairing an existing protective fence. The one end of the retaining rope member 51 is connected to the upper part of the mountain side of the existing support column 2, and the other end of the retaining rope member 51 is fixed to the anchor 52 fixed to the natural mountain on the mountain side.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、補修により支柱２の強度を向上できる。   Thus, in this embodiment, the same operations and effects as in the above embodiment can be achieved, and the strength of the column 2 can be improved by repair.

図１２は本発明の実施例７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と、この例は既設の防護柵の補修に適したものであり、既設の防護柵のＨ型鋼からなる支柱２を補強するに際して補強体61を用い、その補強体61は、コンクリート基礎１に固定する基礎側部62と支柱２に前側又は後側に添える添接部63とを一体に備え、それら基礎側部62と添接部63とにリブ部64を固着し、支柱２の山側と谷側の前後のフランジ部11，11を挟むように、両側に補強体61，61を配置し、その補強体61は、前記基礎側部62をアンカーボルトなどの固定手段65によりコンクリート基礎１に固定することにより固定される。   FIG. 12 shows Embodiment 7 of the present invention. The same reference numerals are assigned to the same parts as those in the above-mentioned embodiments, and detailed description thereof is omitted. This example is suitable for repairing an existing protective fence. The reinforcing body 61 is used to reinforce the pillar 2 made of H-shaped steel of the existing protective fence, and the reinforcing body 61 is attached to the foundation side 62 and the pillar 2 fixed to the concrete foundation 1 on the front side or the rear side. An attaching part 63 to be attached is integrally provided, a rib part 64 is fixed to the base side part 62 and the attaching part 63, and the front and rear flange parts 11 and 11 on the peak side and the valley side are sandwiched. Reinforcing bodies 61 and 61 are arranged on both sides, and the reinforcing body 61 is fixed by fixing the foundation side portion 62 to the concrete foundation 1 by fixing means 65 such as an anchor bolt.

このように本実施例では、上記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 embodiment are obtained.

図１３は本発明の実施例８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と、この例は両側の支柱２，２に緩衝具４をそれぞれ取り付け、これら支柱２，２間において、前記横ロープ材３を分割して分割端部３Ｔ，３Ｔを形成し、これら分割端部３Ｔ，３Ｔを長さ方向に重合させ、これら分割端部３Ｔ，３Ｔを嵌合溝22，22に配置し、把持体21，21により把持し、支柱２，２の中空に緩衝具４を設けている。また、分割端部３Ｔ，３Ｔの端部にストッパ６，６をそれぞれ設ける。尚、図１３中に右側の支柱２の図示しない右隣の支柱にも緩衝具を設け、これらの支柱の間の中空に緩衝具４を設ける。   FIG. 13 shows an eighth embodiment of the present invention. The same reference numerals are given to the same parts as those of the above-mentioned embodiments, and detailed description thereof will be omitted. 4 is attached, and the horizontal rope member 3 is divided between the support columns 2 and 2 to form divided end portions 3T and 3T, and the divided end portions 3T and 3T are overlapped in the length direction, The portions 3T and 3T are arranged in the fitting grooves 22 and 22 and are held by the holding bodies 21 and 21, and the shock absorber 4 is provided in the hollow of the columns 2 and 2. Further, stoppers 6 and 6 are provided at the end portions of the divided end portions 3T and 3T, respectively. In FIG. 13, a shock absorber is also provided on a right adjacent strut (not shown) of the right strut 2, and a shock absorber 4 is provided in a hollow space between these struts.

したがって、支柱２の緩衝具４及び支柱２，２の間の緩衝具４において横ロープ材３が摺動することにより、衝撃力を吸収することができる。   Therefore, the impact force can be absorbed by the lateral rope member 3 sliding in the buffer 4 of the column 2 and the buffer 4 between the columns 2 and 2.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３を把持する緩衝具４を支柱２，２間に設けたから、支柱２，２の間に設けた緩衝具４によっても落石などの衝撃を吸収できる。 As described above, in this embodiment, there are the same operations and effects as in the above embodiment, and in this embodiment, the shock absorber 4 for gripping the lateral rope member 3 is provided between the support columns 2 and 2. Shocks such as falling rocks can also be absorbed by the shock absorber 4 provided between the columns 2 and 2.

図１４は本発明の実施例９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と、この例は、支柱２のウエブ部12に、横ロープ材３の端部を挿通する挿通孔71を形成し、この挿通孔71に横ロープ材３を挿通し、その端部に前記ストッパ６を固着している。また、横ロープ材３の端部側を前記把持体21，21により把持し、前記緩衝具４をウエブ部12の外面に設けている。この場合、横ロープ材３に引張力を加えて、その横ロープ材３に緩衝具４を取り付ければ、その引張力により緩衝具４がウエブ部12の外面に当接する。尚、緩衝具４の取付に必要な引張力は、横ロープ材３が大きく撓まない程度の引張力でもよい。また、図１４では、１本の横ロープ材３を図示しているが、上記の実施例のように、嵌合溝22を複数有する緩衝具４により、横ロープ材３を複数把持するようにしてもよい。   FIG. 14 shows a ninth embodiment of the present invention, where the same reference numerals are given to the same portions as those of the above-described embodiments, and detailed description thereof will be omitted. An insertion hole 71 for inserting the end portion of the horizontal rope member 3 is formed, the horizontal rope member 3 is inserted into the insertion hole 71, and the stopper 6 is fixed to the end portion. Further, the end side of the horizontal rope member 3 is held by the holding bodies 21, 21, and the buffer 4 is provided on the outer surface of the web portion 12. In this case, if a tensile force is applied to the horizontal rope member 3 and the shock absorber 4 is attached to the horizontal rope member 3, the shock absorber 4 comes into contact with the outer surface of the web portion 12 by the tensile force. The tensile force necessary for attaching the shock absorber 4 may be a tensile force that does not cause the horizontal rope member 3 to be greatly bent. Further, in FIG. 14, one horizontal rope member 3 is illustrated, but a plurality of horizontal rope members 3 are gripped by the buffer 4 having a plurality of fitting grooves 22 as in the above embodiment. May be.

そして、落石などにより横ロープ材４の途中に所定以上の引張力が発生すると、ウエブ部12が支持体となって緩衝具４を支持し、この緩衝具４に横ロープ材３が摩擦摺動して落石のエネルギーを吸収することができる。   When a predetermined tensile force or more is generated in the middle of the horizontal rope member 4 due to falling rocks or the like, the web portion 12 serves as a support to support the shock absorber 4, and the horizontal rope member 3 frictionally slides on this shock absorber 4. And can absorb the energy of falling rocks.

このように本実施例では、上記実施例と同様な作用，効果を奏し、また、このように本実施例では、横ロープ材３を支柱２に挿通し、挿通した側で横ロープ材３に緩衝具４を取り付け、その横ロープ材３の張力を利用して前記緩衝具４が横ロープ材３の外面に当たるように設けたから、特に横ロープ材３の端部を連結する端末の支柱２に、緩衝具４を簡便に取り付けることができる。   As described above, in this embodiment, the same operation and effect as the above-described embodiment are obtained. In this embodiment, the horizontal rope member 3 is inserted into the support column 2 and the horizontal rope member 3 is inserted on the inserted side. Since the shock absorber 4 is attached and the shock absorber 4 is provided so as to contact the outer surface of the horizontal rope member 3 by using the tension of the horizontal rope member 3, the end of the horizontal rope member 3 is particularly connected to the column 2 of the terminal. The shock absorber 4 can be easily attached.

尚、本発明は、前記実施例に限定されるものではなく、種々の変形実施が可能である。例えば、実施例では、緩衝具を支柱の前側（山側）に設けたが、緩衝具を支柱の後側（反山側）に設けてもよい。また、緩衝具を前記支柱の外板の外面に固定する際、間にスペーサや補強などのために平面部を有するプレートなどを介在してもよい。   In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible. For example, in the embodiment, the shock absorber is provided on the front side (mountain side) of the support column, but the shock absorber may be provided on the rear side (anti-mountain side) of the support column. In addition, when the shock absorber is fixed to the outer surface of the outer plate of the support column, a plate having a flat surface portion may be interposed for spacers or reinforcement.

本発明の実施例１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 1 of this invention. 同上、支柱の平面図である。It is a top view of a support | pillar same as the above. 同上、緩衝具の正面図である。It is a front view of a shock absorber same as the above. 同上、締付け前の緩衝具の側面図である。FIG. 3 is a side view of the shock absorber before tightening. 本発明の実施例２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 2 of this invention. 同上、支柱の平面図である。It is a top view of a support | pillar same as the above. 本発明の実施例３を示す支柱に取り付けた緩衝具の正面図である。It is a front view of the shock absorber attached to the support | pillar which shows Example 3 of this invention. 本発明の実施例４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 4 of this invention. 同上、要部の正面図である。It is a front view of the principal part same as the above. 本発明の実施例５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 5 of this invention. 本発明の実施例６を示す防護柵の側面図である。It is a side view of the guard fence which shows Example 6 of this invention. 本発明の実施例７を示す支柱下部の側面図である。It is a side view of the lower part of the support | pillar which shows Example 7 of this invention. 本発明の実施例８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 8 of this invention. 本発明の実施例８を示す支柱の平面図である。It is a top view of the support | pillar which shows Example 8 of this invention.

１ コンクリート基礎
２ 支柱
３ 横ロープ材
４ 緩衝具
６ ストッパ
11 フランジ部（外板）
11Ｌ 左側
11Ｒ 右側
13 平面部
21 把持体
22 嵌合溝
23 ボルト
23Ａ 挿通孔（把持体の挿通孔）
23Ｂ 挿通孔（外板の挿通孔）
24 ナット
25 締付固定手段
31 ループ部
32 重合部
33 交差部
41 木質の杆（間伐材）
DESCRIPTION OF SYMBOLS 1 Concrete foundation 2 Support | pillar 3 Horizontal rope material 4 Shock absorber 6 Stopper
11 Flange (outer plate)
11L left side
11R right side
13 Plane section
21 Grasping body
22 Mating groove
23 volts
23A Insertion hole (insertion hole for gripper)
23B insertion hole (outer plate insertion hole)
24 nuts
25 Tightening means
31 Loop section
32 Superposition part
33 Intersection
41 Wood firewood (thinned wood)

Claims (11)

所定の間隔で複数の支柱を設け、前記支柱間に横ロープ材を設けた防護柵において、前記横ロープ材を把持する緩衝具を用い、この緩衝具を前記支柱の外板の外面に設けたことを特徴とする防護柵。 In a protective fence in which a plurality of support columns are provided at predetermined intervals and a horizontal rope material is provided between the support columns, a shock absorber that grips the horizontal rope material is used, and the shock absorber is provided on the outer surface of the outer plate of the support column. A protective fence characterized by that. 所定の間隔で複数の支柱を設け、前記支柱間に横ロープ材を設けた防護柵において、前記横ロープ材を複数把持する緩衝具を用い、この緩衝具を前記支柱の外板の外面に設けたことを特徴とする防護柵。 In a protective fence in which a plurality of support columns are provided at predetermined intervals and a horizontal rope member is provided between the support columns, a shock absorber that grips a plurality of the horizontal rope members is used, and the shock absorber is provided on the outer surface of the outer plate of the support column. Guard fence characterized by that. 前記緩衝具と前記外板とを挿通したボルトにより前記緩衝具を前記支柱に固定したことを特徴とする請求項２記載の防護柵。 The protective fence according to claim 2, wherein the shock absorber is fixed to the support column by a bolt inserted through the shock absorber and the outer plate. 前記外面の平面部に前記緩衝具を固定したことを特徴とする請求項２又は３記載の防護柵。 The protective fence according to claim 2 or 3, wherein the shock absorber is fixed to a flat portion of the outer surface. 前記緩衝具により前記支柱の両側に配置した前記横ロープ材を把持したことを特徴とする請求項２又は３記載の防護柵。 The protective fence according to claim 2 or 3, wherein the lateral rope material disposed on both sides of the support column is gripped by the shock absorber. 前記緩衝具により前記支柱の一側に配置した前記複数の横ロープ材を把持したことを特徴とする請求項２又は３記載の防護柵。 4. The protective fence according to claim 2, wherein the plurality of horizontal rope members disposed on one side of the support are gripped by the buffer. 前記横ロープ材の端部に前記緩衝具に係止するストッパを設けたことを特徴とする請求項２〜６のいずれか１項に記載の防護柵。 The protective fence according to any one of claims 2 to 6, wherein a stopper that locks the shock absorber is provided at an end of the horizontal rope member. 前記支柱間に木質の杆を設けたことを特徴とする請求項１〜７のいずれか１項に記載の防護柵。 The protective fence according to any one of claims 1 to 7, wherein a wooden fence is provided between the columns. 前記横ロープ材にループ部を設け、このループ部の重合部を前記緩衝具により把持したことを特徴とする請求項１〜７のいずれか１項に記載の防護柵。 The protective fence according to any one of claims 1 to 7, wherein a loop portion is provided on the horizontal rope member, and a superposed portion of the loop portion is gripped by the shock absorber. 前記横ロープ材を把持する緩衝具を前記支柱間に設けたことを特徴とする請求項１〜８のいずれか１項に記載の防護柵。 The protective fence according to any one of claims 1 to 8, wherein a buffer for gripping the horizontal rope member is provided between the support columns. 所定の間隔で配置した複数の支柱を備えた既設の防護柵の改修方法において、横ロープ材を複数把持する緩衝具を用い、この緩衝具を前記支柱の外板の外面に固定して前記支柱間に横ロープ材を設けることを特徴とする防護柵の改修方法。 In a method of repairing an existing protective fence provided with a plurality of struts arranged at a predetermined interval, a shock absorber that grips a plurality of lateral rope members is used, and the shock absorber is fixed to the outer surface of the outer plate of the strut. A method of repairing a protective fence, characterized in that a horizontal rope material is provided between them.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101188845B1 (en) 2010-06-23 2012-10-08 (주) 대광이앤씨 A falling rock prevention pense of a moving type
TWI512214B (en) * 2013-03-20 2015-12-11 Kanamori Co Ltd Wire rope gripping metal part and impact absorbing structure using such metal part
KR102054381B1 (en) * 2019-03-07 2019-12-10 (주)타이가 Wind-break fence
KR20200111429A (en) * 2019-03-19 2020-09-29 육종현 Rope fixing device for anti-rocking

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101188845B1 (en) 2010-06-23 2012-10-08 (주) 대광이앤씨 A falling rock prevention pense of a moving type
TWI512214B (en) * 2013-03-20 2015-12-11 Kanamori Co Ltd Wire rope gripping metal part and impact absorbing structure using such metal part
KR102054381B1 (en) * 2019-03-07 2019-12-10 (주)타이가 Wind-break fence
KR20200111429A (en) * 2019-03-19 2020-09-29 육종현 Rope fixing device for anti-rocking
KR102262043B1 (en) * 2019-03-19 2021-06-08 육종현 Rope fixing device for anti-rocking

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