JP5589807B2 - Protective fence - Google Patents

Description

  The present invention relates to a protective fence for avalanches, falling rocks and the like.

  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.

  In addition, a holding release device for holding the rope material is provided, and this holding release device is used for the intermediate rope material as an intermediate strut for a relatively small lateral force that acts constantly or for a long time such as snow pressure of snow. When the holding force is maintained and a lateral force greater than snow pressure is applied, such as when a falling rock collides, the holding of the intermediate rope material is released and the intermediate rope material is moved away from the collision object such as falling rock. There is a protective fence (for example, Patent Document 2) that allows a large movement toward the opposite side.

  Further, a rope shock absorber (for example, Patent Document 3) that holds a horizontal rope material provided between struts and absorbs the tension applied to the horizontal rope material by frictional sliding of the horizontal rope material has been proposed. Has a U-bolt, and a connecting portion for connecting the U-bolt is provided on the support column.

JP-A-7-197423 Japanese Patent Laid-Open No. 2007-077772 JP 2003-313828 A

  As described above, the rope material is provided in multiple stages between the struts, and both ends of the rope material are fixed to the terminal struts. There is a risk that the fallen stones will pass due to the material rolling up.

  Moreover, even if the horizontal rope member is connected to the intermediate strut by the rope shock absorber, when the horizontal rope member frictionally slides on the shock absorber, the horizontal rope material is bent, and there is a possibility that the falling rocks may similarly pass.

  Then, in view of the problem mentioned above, an object of this invention is to provide the guard fence which can prevent the passage of the falling rock in the lower stage of a support | pillar.

In order to achieve the above object, the invention according to claim 1 is characterized in that three or more struts are provided at predetermined intervals on the left and right sides, a horizontal rope material is provided in multiple stages between the struts , and the lower horizontal rope material is provided in the lower stage. In the guard fence fixed to three or more struts among the struts, a fixing rope member is provided on an intermediate strut for fixing the lower horizontal rope member, and the fixing rope member is provided in the middle of the lower horizontal rope member. It is characterized by being fixed .

The invention according to claim 2 is provided with three or more struts at predetermined intervals on the left and right sides , a plurality of horizontal rope members between the struts, and three or more of the lower horizontal rope members among the struts. In the protective fence fixed to the support pillar of the above, the divided horizontal rope material is formed by dividing the lower horizontal rope material between the support posts fixing the lower horizontal rope material, and the end of the divided horizontal rope material is It is fixed to the column .

The invention according to claim 3, characterized in that the horizontal rope material of the lower fixed to each post.

The invention according to claim 4 is characterized in that the divided horizontal rope member in the lower stage is fixed to each of the columns.

The invention according to claim 5, the connecting portion is provided in the middle of the column, characterized by being connected to each said fixed rope material left of the connecting portion.

  The invention according to claim 6 is characterized in that an end of the divided horizontal rope member is fixed to the support column by a position adjusting means.

  The invention according to claim 7 is characterized in that an end portion of the divided horizontal rope member is fixed to the column by a connector, and the connectors on both sides of the column are connected by a connecting rope member.

  Moreover, the invention which concerns on Claim 8 fixed the edge part of the said division | segmentation horizontal rope material to the said support | pillar with a connection tool, and connected the said connection tool and the said support | pillar of the said one support | pillar side with the connection rope material. And

According to the structure of Claim 1 and 2 of this invention, by fixing the lower horizontal rope material to three or more support | pillars, it can prevent that a lower horizontal rope material rolls up at the time of falling rock, and a fall rock passes. .

According to the third and fourth aspects of the present invention, by fixing the lower horizontal rope member to each column, it is possible to prevent the lower horizontal rope member from rolling up and falling rocks when falling.

Further, according to the first aspect of the present invention, fixed in the middle of the horizontal rope materials through a fixing rope materials can be fixed to the intermediate pillars, the middle of the column without dividing the horizontal rope materials can do.

Further, according to the fifth aspect of the present invention, it can be fixed in the middle of the strut connecting the middle of the horizontal rope materials to the left and right fixed rope material.

Moreover, according to the structure of Claim 2 of this invention, a division | segmentation horizontal rope material can be fixed for every support | pillar which fixes a lower horizontal rope material .

  Moreover, according to the structure of Claim 6 of this invention, the position of an edge part can be adjusted and the division | segmentation horizontal rope material can be tensioned by predetermined tension.

  Moreover, according to the structure of Claim 7 of this invention, scattering of the member by the damage of the attachment part of a coupling tool, etc. and the passage of falling rocks can be prevented.

  Moreover, according to the structure of Claim 8 of this invention, the scattering of the member by the damage of the attachment part of a coupling tool, etc. and the passage of falling rocks can be prevented.

It is a side view of the protection fence which shows Example 1 of a present Example. It is a front view of a protection fence same as the above. FIG. 3 is a plan sectional view of the intermediate support column. It is an exploded front view of a clamping tool same as the above. It is a front view of a terminal support | pillar same as the above. It is a plane sectional view of a terminal support | pillar same as the above. It is a top view of the principal part of an impact-absorbing device same as the above. It is sectional drawing of the intermediate | middle support | pillar which shows Example 2 of a present Example. It is a front view of the principal part of a connection part same as the above. It is a front view of the protection fence which shows Example 3 of a present Example. It is a top view of a protection fence same as the above. It is a longitudinal cross-sectional view of an intermediate | middle support | pillar same as the above. FIG. 3 is a plan sectional view of the intermediate support column. It is a longitudinal cross-sectional view of a terminal support | pillar same as the above. It is a plane sectional view of a terminal support | pillar same as the above. It is a description front view of the protection fence which shows Example 4 of a present Example. It is a description front view of the protection fence which provided the five fixing | fixed location in the lower horizontal rope material same as the above. It is a description front view of the protection fence which provided the 3 fixed location in the horizontal rope material of the lower stage same as the above. It is a longitudinal cross-sectional view of the intermediate | middle support | pillar which shows Example 5 of a present Example. FIG. 3 is a plan sectional view of the intermediate support column. FIG. 21A is a side view of the mounting body and FIG. 21B is a partially cutaway plan view. It is a front view of a connection rope material same as the above. It is a longitudinal cross-sectional view of a terminal support | pillar same as the above. It is a plane sectional view of a terminal support | pillar same as the above. It is a perspective view of a connection rope material same as the above.

  Hereinafter, Embodiment 1 of the guard fence of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 7, rockfall fences are shock absorbing fence, erecting a plurality of posts 2, 2A, 2A, 2 to the ground 1 of the lower slope is Installation location. A plurality of intermediate struts 2A and 2A are arranged between the terminal struts 2 and 2. The struts 2 and 2A are made of H-shaped steel, concrete columns, steel pipes or concrete-filled steel pipes. In this example, steel pipes are used and their lower ends are built into the ground 1 and fixed.

Between the support columns 2, 2 </ b> A, 2 </ b> A, 2, horizontal rope members 3 , 3 ,. Also, the space between the supports 2, 2A, 2A, 2 is shielded by the wire mesh 9. Further, the wire mesh 9 is coupled to the horizontal rope members 3 and 7 by a coupling material such as a coupling coil. Moreover, even if the horizontal rope members 3 and 7 are respectively locked to the vertical interval holding member 10 and the falling rock collides with the interval holding member 10, the interval between the upper and lower rope members is widened so that the falling rocks do not pass. It has become. The columns 2, 2A, 2A, 2 may be fixed with the lower part built into the ground as described above, or may be fixed to a concrete foundation, etc. Alternatively, it may be fixed by a rope material on the mountain side and the valley side. The intermediate strut 2A, which is an intermediate strut, is provided with a locking portion 4 for locking the rope material 3, and the locking portion 4 is provided by a locking hook for locking the horizontal rope material 3 or the like. It is comprised and the movement of the length direction of the horizontal rope material 3 is permitted.

The horizontal rope materials 3, connected both ends thereof to said terminal post 2 is a post of the terminal, is engaged laterally movable midway in said Ma支 pillars 2A. Specifically, a horizontal bar 6 is connected to the end 3T of the horizontal rope member 3 by a connector 5, and the horizontal bar 6 is connected to the terminal column 2 by an impact absorbing device 11. As shown in FIG. 5 to FIG. 7, the impact absorbing device 11 includes a ring material 12 made of a steel pipe and the like, and loading plates 13 and 13 as loading members arranged so as to sandwich the ring material 12 from both sides of the outer periphery. The horizontal plate 6 inserted through the loading plate 13, the support column 2, the ring material 12 and the loading plate 13 and a nut 14 as a terminal fixing device provided on the horizontal plate 6 are provided. A mating male screw portion is formed. The surfaces of the load plates 13 and 13 that are in contact with the outer periphery of the ring material 12 are the load surfaces 13M and 13M. The load surface 13M is substantially the same as the width W of the ring material 12 in the length direction. The ring member 12 has a width W in the longitudinal direction smaller than the diameter D of the ring member 12. Further, since the center axis of the ring material 12 is directed in the vertical direction, the ring material 12 can be arranged without taking up and down space. Further, a pipe 15 for inserting the horizontal rod 6 is provided in the terminal column 2, and a steel pipe or the like is used for the tube 15, and the end of the tube 15 is fixed to the terminal column 2 by welding or the like. Yes.

  Then, when a tensile force is generated in the lateral rope member 3 and the nut 14 moves to the support column 2 side, the ring member 12 is crushed by the loading surfaces 13M and 13M, thereby absorbing the impact energy and the opposing inner surface is hit. After the ring material 12 is crushed until it comes into contact, impact energy can be absorbed by the lateral rope material 3 extending.

  Two horizontal rope members 7 are provided below the support columns 2, 2 </ b> A, 2 </ b> A, 2, and both ends of the horizontal rope material 7 are fixed to the terminal support columns 2, 2. As shown in FIG. 1, the interval K between the horizontal rope members 7 and 7 in the lower stage is set to be narrower than the interval K1 between the horizontal rope members 3 and 3 adjacent to each other on the upper stage side (K <K1). . Further, the interval K2 between the two horizontal rope members 3 and 3 positioned on the upper side of the horizontal rope member 7 and the interval K3 between the horizontal rope members 3 and 7 adjacent in the vertical direction are substantially equal and narrower than the interval K1. , Wider than the interval K (K <K2 = K3 <K1). Further, the lowermost horizontal rope member 7 is arranged close to the ground 1 at an interval narrower than the interval K.

  Next, the fixing structure of the horizontal rope member 7 in the intermediate strut 2A will be described. As shown in FIG. 3, a connecting portion 21 is provided at the front portion of the intermediate strut, and the approximate center of the fixing rope material 22 is fixed to the connecting portion 21, and both sides of the fixing rope material 22 are connected to the horizontal rope material. As shown in FIG. 4, a plurality of clips 23 provided at intervals are used as a holding tool that is fixed in the middle of 7. The horizontal rope member 7 is made to follow the substantially entire length of the fixing rope member 22, and both are clamped and fixed by a plurality of clips 23. The clip 23 includes a U bolt 23A having an opening, a main body 23B that is inserted through both ends of the U bolt 23A, and nuts 23C that are screwed into both ends of the U bolt 23A. The materials 7 and 22 are inserted, both ends of the U bolt 23A are inserted into the insertion holes 23D of the main body 23B, and the nut 23C is tightened, whereby the rope materials 7 and 22 are clamped and fixed by the U bolt 23A and the main body 23B. . In this case, using the plurality of clips 23, the middle of the horizontal rope member 7 can be easily fixed to the intermediate strut 2A at the site.

Thus, in this embodiment, in response to claims 1 and 2, three or more struts 2,2A at predetermined intervals in the left-right, 2A, 2 and provided, struts 2,2A, horizontal between 2A, 2 rope materials 3,3, an ... 7,7 in guard fence provided in multiple stages, the lower horizontal rope materials 7,7 strut 2, 2A, 2A, 2 of 3 or more struts 2, 2A, 2A , 2, it is possible to prevent the falling horizontal rope members 7 and 7 from rolling up when the rock falls and the falling rocks pass.

In this way, in this embodiment, corresponding to claim 3 , since the lower horizontal rope members 7, 7 are fixed to the respective supports 2, 2A, 2A, 2, the lower horizontal rope members 7, It is possible to prevent 7 from rolling up and falling rocks.

Further, in the present embodiment in this way, in response to claim 1, the fixing rope materials 22 to Ma支 column 2A in securing the lower horizontal rope materials 7 provided, the lower to the fixed rope member 22 Since the middle of the horizontal rope members 7 and 7 are fixed, the intermediate ropes 7 are not divided by fixing the middle of the horizontal rope members 7 and 7 to the intermediate struts 2A via the fixing rope members 22. Can be fixed to 2A.

  Further, as an effect of the embodiment, the horizontal rope member 7 is made to follow the substantially entire length of the fixing rope member 22, and the both are clamped and fixed by a plurality of clips 23 serving as fixtures, so that the work at the site is easily performed. be able to.

8 and 9 show a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In this example, left and right fixing rope members 22L and 22R are provided, and ring portions 24 are provided at ends of the left and right fixing rope members 22L and 22R. In addition, U-shaped receiving portions 26 are provided at both left and right ends of the connecting portion 25, the ring portion 24 is inserted into the receiving portion 26, and a bolt 27 serving as a connecting shaft is inserted into the receiving portion 26 and the ring portion 24. Then, the nuts 28 are screwed into the bolts 27 and the fixing rope members 22L and 22R are connected to the connecting portion 25 .

  The right and left fixing rope members 22L and 22R and the horizontal rope member 7 are sandwiched and fixed by a plurality of clips 23 provided at intervals.

Thus, in this embodiment, corresponding to claim 5, the connecting portion 25 provided in the middle Ma支 pillars 2A, the fixing rope materials 22 on the left and right of the connecting portion 25 L, 22 R and from linked respectively, The right and left fixing rope members 22L, 22R can be connected to the intermediate strut 2A by connecting the middle portion of the horizontal rope member 7 .

  FIGS. 10-15 shows Example 3 of this invention, attaches | subjects the same code | symbol to the same part as said each Example, the detailed description is abbreviate | omitted and explained in full detail. In this example, the horizontal rope member 7 is formed with a plurality of divided horizontal rope members 8, 8, 8, 8 corresponding to the intervals between the support columns 2, 2 </ b> A, 2 </ b> A, 2. Ring portions 8W and 8W are provided in the portion.

As shown in FIGS. 12 and 13, the fixing structure of the intermediate strut 2A is provided with a horizontal bar 31 penetrating in the left and right direction in the intermediate strut 2A, and the horizontal bar 31 is composed of a screw rod or the like. 31 is located on the front side (mountain) from the front-rear direction center, the end 31T exiting from the intermediate pillar 2A to the outside, as well as through the Teparaina 32, the Yoko杆31 to the intermediate posts 2A screwed a nut 31N Fix it. In addition, a pipe 38 for inserting the horizontal rod 31 is provided in the intermediate strut 2A. A steel pipe or the like is used for the pipe 38, and the end of the pipe 38 is fixed to the intermediate strut 2A by welding or the like. Yes. The taper liner 32 has a curved inner surface that engages with the outer surface of the intermediate strut 2A.

  A mounting body 34 is provided at the end 31T of the horizontal bar 31 so as to be positioned in the left-right direction. This attachment body 34 is integrally provided with a reed connecting part 35 made of a plate material in the front-rear direction and a rope material connecting part 36 made of a plate material in the left-right direction, and has a substantially plane L shape. An insertion hole 35A for inserting the horizontal rod 31 is formed, and connection holes 36A and 36A are formed in the rope member connection portion 36 at positions above and below the insertion hole 35A, respectively. Further, the two-stage divided horizontal rope members 8 and 8 are connected to the rope member connecting portion 36 of the attachment body 34. For this connection, a shackle 37 as a connecting tool is used. The shackle 37 includes a U-shaped main body 37A having an opening at the end, a bolt 37B and a nut 37C that are detachably provided in the opening of the main body 37A, and the main body 37A is locked to the ring portion 8W. Then, with the rope member connecting portion 36 sandwiched between the end portions of the main body 37A, the bolt 37B is inserted into the connecting hole 36A, the bolt 37B is inserted into the end portion of the main body 37A, and the nut 37C is screwed into the bolt 37B. By combining, the split horizontal rope member 8 is rotatably connected to the attachment body 34. In this way, a plurality of (two) split horizontal rope members 8, 8 are connected to the mounting body 34, the end 31T of the horizontal rod 31 is inserted into the insertion hole 35A, and the nut 31N is screwed into the end 31T. By doing so, the division | segmentation horizontal rope material 8 can be connected with the intermediate support | pillar 2A so that position adjustment is possible.

  As shown in FIGS. 14 and 15, the fixing structure of the terminal support 2 is provided in the terminal support 2 by penetrating the horizontal bar 31 in the left-right direction, and the horizontal bar 31 is located at the center in the front-rear direction, A seat plate 41 is inserted into an end portion 31T protruding from the terminal support column 2 to the outside of the protective fence, the seat plate 41 is welded to the terminal support column 2, and the nut 31N is screwed to the end portion 31T. On the other hand, the attachment body 34 is connected to the end portion 31T protruding from the terminal support column 2 into the inside of the protective fence, whereby the end portions of the two-stage split horizontal rope members 8 and 8 are connected to the terminal support column 2.

  As described above, in this embodiment, the same operations and effects as the above-described embodiments are obtained.

Thus, in this embodiment, corresponding to claim 2, the lower horizontal rope materials 7, post 2,2A for fixing the lower horizontal rope materials 7, divided horizontal rope materials each sharing between 2A, 2 8 is formed, the ends of the struts 2,2A divided horizontal rope materials 8, since fixed to 2A, 2, it is possible to fix the divided horizontal rope materials 8 post 2,2A, each between 2A, 2.

  As described above, in this embodiment, the lower split rope member 8 is fixed to each of the columns 2, 2A, 2A, 2 in correspondence with the fourth aspect. It can prevent the falling rocks from passing.

Thus, in this embodiment, in correspondence with claim 6, the end portion of the divided horizontal rope member 8 is fixed to the columns 2, 2A, 2A, 2 by the attachment body 34 serving as the position adjusting means. Can be adjusted to stretch the divided horizontal rope member 8 with a predetermined tension.

  Further, as an effect of the embodiment, since the plurality of divided horizontal rope members 8, 8 are connected to the attachment body 34, the structure for fixing the plurality of divided horizontal rope members 8, 8 to the intermediate strut 2A is simplified. be able to.

FIGS. 16-18 shows Example 4 of this invention, attaches | subjects the same code | symbol to the same part as said each Example, the detailed description is abbreviate | omitted and explained in full detail. The figure shows an example in which the lower horizontal rope member 7 is fixed to three or more struts, and the end 3T of the horizontal rope member 3 is connected to the terminal strut 2 by connecting means 81, The impact absorbing device 11 that absorbs the energy of falling rocks, or the one that fixes the end 3T to the terminal column 2 is used.

In FIG. 16, the right terminal column 2, the intermediate column 2 </ b> A having the terminal column 2 and one intermediate column 2 </ b> A in between, and the intermediate column 2 </ b> A having the intermediate column 2 </ b> A and one intermediate column 2 </ b> A in between. The horizontal rope member 7 is fixed to 2A and the terminal strut 2 on the left side , whereby the horizontal rope member 7 is fixed to the four columns 2, 2A, 2A, 2. Reference numeral 82 denotes a fixing location, and the fixing structure shown in each of the above embodiments or other fixing structures can be adopted. And the absorption effect of the rock fall energy in the horizontal rope material 7 can be heightened by enlarging the space | interval of the fixed location 82 in the range which a rock fall does not climb up the horizontal rope material 7 in this way.

  In FIG. 17, the horizontal rope member 7 is fixed to five adjacent intermediate struts 2A, 2A, 2A, 2A, 2A. This FIG. 17 is suitable when the terminal column 2 side does not receive a falling rock.

  In FIG. 18, the horizontal rope member 7 is fixed to the intermediate struts 2A, 2A, 2A with one intermediate strut 2A in between. As shown in FIGS. The horizontal rope member 7 can be fixed in combination.

Thus, in the present embodiment, seven struts 2,2A is 3 or more at a predetermined interval in the left right, 2A, 2A, 2A, 2A, 2 and provided, struts 2,2A, 2A, 2A, 2A , 2A, 2 in a multi-stage guard fence, the lower horizontal rope material 7 is fixed to three or more struts 2, 2A. It can prevent the falling rocks from passing through.

  FIGS. 19-25 shows Example 5 of this invention, and attaches | subjects the same code | symbol to the same part as each said Example.

In Embodiment 3, the lower horizontal rope materials 7, post 2,2A for fixing the lower horizontal rope materials 7, a split horizontal rope materials 8 each sharing between 2A, 2 are formed, dividing the horizontal rope materials 8 Since the end of the arm is fixed to the support posts 2, 2 A, 2 A , 2, the divided horizontal rope material 8 can be fixed between the support posts 2, 2 A, 2 A, 2, and the lower horizontal rope material 7 is rolled when falling rocks It can prevent the falling rocks from going up.

By the way, when the divided horizontal rope member 8 receives falling rocks exceeding the design conditions, it is assumed that the attachment body 34 and the like are damaged and scattered, and the falling rocks thereby pass.

  Therefore, in the intermediate strut 2A, a configuration in which the shackles 37 on both sides are connected by a connecting rope material will be described below with a focus on the connecting rope material.

  As shown in FIGS. 20 to 22, the fixing structure of the intermediate strut 2 </ b> A is provided in the intermediate strut 2 </ b> A by penetrating the horizontal bar 31 in the left-right direction. The collar 31 is located at the center in the front-rear direction, and a nut 33 is screwed into an end 31T that is exposed to the outside from the intermediate strut 2A to fix the horizontal collar 31 to the intermediate strut 2A.

The left and right end portions 31T, 31T of the horizontal rod 31 are provided with left and right attachment bodies 134, 134, respectively, so that they can be positioned in the left-right direction. The mounting member 134 is provided with a rope member connecting portion 136 where the lateral rod connecting portion 135 composed of a front-rear direction of the plate material consisting of the left and right direction of the plate material together, the transverse rod the the center of the connecting portion 135 rope materials connecting portion 136 The reinforcing ribs 137 having a substantially triangular shape are provided on the upper and lower sides of the attachment body 134, respectively. The reinforcing ribs 137 are provided with the horizontal joint connecting portion 135 and the rope member connecting portion. In addition, a reinforcing rib 138 is provided in the center of the front side of the attachment body 134, and the reinforcing rib 138 is welded to the front side of the horizontal joint connecting portion 135 and the front surface of the rope member connecting portion 136. Yes.

  Further, an insertion hole 135A for inserting the horizontal rod 31 is formed behind the horizontal link connecting portion 135, and connection holes 136A and 136A are provided in the rope member connecting portion 136 at positions above and below the insertion hole 135A, respectively. Do it. Further, the two-stage split horizontal rope members 8 and 8 are connected to the rope member connecting portion 136 at two stages. For this connection, the shackle 37 as a connecting tool is used.

  In this way, a plurality (four) of the divided horizontal rope members 8, 8 are connected to the mounting body 34, the end 31T of the horizontal rod 31 is inserted into the insertion hole 135A, and the nut 31N is screwed into the end 31T. By doing so, the division | segmentation horizontal rope material 8 can be connected with the intermediate support | pillar 2A so that position adjustment is possible.

  The left and right shackles 37, 37 sandwiching the intermediate strut 2 </ b> A are connected by a connecting rope material 101. The connecting rope member 101 is formed in an annular shape by caulking both ends with aluminum clamps 102 as connecting means, and the ring portions 101W and 101W at the end of the connecting rope member 101 are inserted into the left and right shackles 37 and 37, respectively. In addition, they are arranged almost horizontally along the front side of the intermediate strut 2A. Further, connecting rope members 101, 101 are provided between the upper left and right clamps 37, 37 and between the lower left and right clamps 37, 37, respectively. It is installed on the mountain side.

  As shown in FIGS. 23 to 25, the fixing structure of the terminal column 2 is provided by penetrating the terminal rod 31 in the left-right direction in the terminal column 2, and the horizontal rod 31 is located in the center in the front-rear direction, The mounting body 134 is connected to the end 31T that protrudes from the terminal column 2 to the inside of the protective fence, and the end portions of the two split horizontal rope members 8 and 8 are connected to each step by the shackles 37 and 37 in the same manner as the intermediate column 2A. Two pieces are connected to the terminal support 2 at a time.

  Further, the connecting rope member 101 is wound around the terminal column 2, the other ring portion 101W is inserted into the ring portion 101W at one end, and the inserted other ring portion 101W is inserted into the shackle 37, thereby the terminal column. 2 and the shackle 37 are connected by a connecting rope member 101.

  As described above, in this embodiment, the same operations and effects as the above-described embodiments are obtained.

In this way, in this embodiment, corresponding to claim 7, the end portion of the divided horizontal rope member 8 is fixed to the intermediate strut 2A as a strut by the shackle 37 as a connecting tool, and the shackles 37 on both sides of the intermediate strut 2A are fixed. because were connected by a connecting rope materials 101, it is possible to prevent the passage of falling rocks scattering and by that of the member due to damage, such as preparative cylindrical body 134 is a mounting portion of the shackle 37.

Also, in this way this embodiment, claim 8 corresponds to the split ends of the horizontal rope materials 8 fixed to the post serving edge end strut 2 by coupling serving shackle, end end strut 2 a side shackle because it linked by 37 and the end-terminal posts 2 and the connecting rope material 101, it is possible to prevent the passage of falling rocks scattering and by that of the member due to damage, such as such as preparative cylindrical body 134 is a mounting portion of the shackle 37.

Further, as an effect on the embodiment, the connecting rope material 101 is formed annularly, from ligated into sheet Yakkuru 37 is a connector to be annular in coupled condition, it is possible to easily perform the connecting work, rigidly Can be linked. Furthermore, since the connecting rope member 101 is wound around and connected to the terminal column 2, the connecting operation can be easily performed. In addition, since the two divided horizontal rope members 8, 8 are stretched at the front and rear in each stage , the horizontal rope member 7 can be prevented from further rolling up.

  The present invention is not limited to this embodiment, and various modifications can be made within the scope of the gist of the present invention. For example, it is preferable that the lower horizontal rope member connected to the terminal column is connected so as not to extend except for the extension of the lower horizontal rope member.

1 Ground (installation location)
2 Terminal support (terminal support)
2A Intermediate strut (intermediate strut)
3 Horizontal rope material 7 Horizontal rope material 8 Split horizontal rope material
21 Connecting part
22 Rope material for fixing
25 Connecting part
34 Mounting body (position adjustment means)
37 Shackle (connector)
101 Connecting rope material

Claims (8)

In a protective fence in which three or more struts are provided at predetermined intervals on the right and left, a horizontal rope material is provided in multiple stages between the struts , and the lower horizontal rope material is fixed to three or more struts of the struts ,
A protective fence , wherein a fixing rope member is provided on an intermediate column for fixing the lower horizontal rope member, and a middle portion of the lower horizontal rope member is fixed to the fixing rope member . In a protective fence in which three or more struts are provided at predetermined intervals on the right and left, a horizontal rope material is provided in multiple stages between the struts , and the lower horizontal rope material is fixed to three or more struts of the struts ,
The lower horizontal rope member is formed by dividing a split horizontal rope member divided between struts for fixing the lower horizontal rope member, and an end of the divided horizontal rope member is fixed to the post. Guard fence. The protective fence according to claim 1, wherein the lower horizontal rope member is fixed to each column. Fences according to claim 2, characterized in that fixing the lower split horizontal rope materials to the respective posts. Wherein the intermediate post is provided the connecting portion, according to claim 1 or 3 guard fence according to characterized in that respectively connect said fixed rope material left of the connecting portion. The protective fence according to claim 2 or 4, wherein an end of the divided horizontal rope member is fixed to the support column by a position adjusting means. Wherein the ends of the divided horizontal rope material is fixed to the strut by a connecting member, the claims of the connector strut sides, characterized in that linked by a connecting rope materials 2,4, in any one of 6 The protective fence described. The divided ends of the horizontal rope materials fixed to the strut by coupling, according to claim 2 and 4, characterized in that it has connected by a connecting rope materials and the said coupling of said strut first side struts 6 The protective fence of any one of items .

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