JP4549428B1 - Guard fence and its removal method - Google Patents

Abstract

A protective fence capable of loosening a net body and removing a captured object to the opposite mountain side is provided.
The support columns 3 and 3 are erected at intervals on the left and right sides, the net body 4 is provided between the support columns 3 and 3, and the upper and lower horizontal rope members 11 and 12 are provided between the support columns 3 and 3. The net body 4 has a left-right width corresponding to the interval between adjacent struts 3, 3, connects the adjacent net bodies 4, 4 in a detachable manner, and connects the net body 4 to the upper and lower horizontal rope members 11, 12. The support | pillar connection means which connects removably and connects the edge part of the upper and lower horizontal rope materials 11 and 12 to the support | pillar 3 is provided, and this support | pillar connection means is releasable. The ends of the upper and lower horizontal rope members 11 and 12 can be loosened by removing them from the support post 3, and the net 4 can be loosened or removed in units between the support posts 3, thereby opening the openings 55 between the support posts 3 and 3. The earth and sand D can be discharged.
[Selection] Figure 2

Description

  The present invention relates to a protective fence and a method for removing a captured object thereof.

  Conventionally, as an example of a protective body using this type of strut structure, foundation concrete provided at the boundary between a slope and a road, struts installed on the foundation concrete at a predetermined interval, and a belt-like stretch between these struts. A protective fence composed of a protective net (for example, Patent Document 1) is known.

  In addition, a guard fence (for example, Patent Document 2) shielded by a wire net provided with struts at predetermined intervals, provided with a horizontal rope material between the struts, and suspended between the struts on the horizontal rope material, There are protective fences with multi-level bunkers made of concrete, metal, etc. between each support, and a protection fence (for example, Patent Document 3) in which the upper part of the support and the slope on the front side of the support are connected by a rope material. Are known.

  Furthermore, a guard fence (for example, Patent Document 4) provided with a plurality of support columns erected at predetermined intervals, wire ropes extending diagonally and horizontally between these support columns, and a wire mesh extending between these support columns. )It has been known.

  In addition, when attaching a net to a horizontal rope material, it is known that a folded portion of an oblique wire arranged in an intersecting manner is wound around the horizontal rope material and locked, and the net is constituted by an intersecting oblique wire. As a result, a net excellent in strength can be obtained.

JP 2003-3425 A JP-A-6-173221 Japanese Patent Laid-Open No. 2000-273727 JP 2001-107322 A JP-A-7-252808 Japanese Patent Laid-Open No. 8-27735

  The protective fence captures captured objects such as earth and sand, falling rocks, and avalanches to protect roads and private houses. For example, after capturing the earth and sand, it is necessary to remove the earth and sand to restore the site.

  However, in the nets of Patent Documents 5 and 6, since the folded portion of the diagonal wire is wound around the horizontal rope material and locked, the net cannot be removed from the horizontal rope material and the earth and sand cannot be removed.

  And with conventional protective fences, the earth and sand must be removed from the mountain side. If you cannot work on the mountain side, even if you try to remove the net to remove the earth and sand from the anti-mountain side, Since the net is bent and strongly stretched, the mesh body cannot be easily removed, and no protection fence has been considered for removing earth and sand.

  Then, an object of this invention is to provide the protection fence which can loosen a net | network body, and can remove a captured matter to the anti-mountain side, and its captured matter removal method.

  The present invention is a protective fence in which struts are erected at intervals on the left and right sides, a net is provided between the struts, and upper and lower horizontal rope members are provided between the struts. Left and right widths corresponding to the interval between the columns, the adjacent nets are detachably connected, the nets are detachably connected to the upper and lower horizontal rope members, and the upper and lower horizontal rope members are connected. The support | pillar connection means which connects the edge part of this to the said support | pillar is provided, and this support | pillar connection means can be cancelled | released.

  According to the above configuration, the ends of the upper and lower horizontal rope members can be loosened by removing them from the struts, and the net body can be loosened or removed in units between struts. It is possible to remove the captured object.

In the present invention, the mesh body includes a main network in which diagonal wire rods intersect and an auxiliary network that is bundled and overlapped with the main network, and the mesh of the auxiliary network is smaller than the mesh of the main network. Has a folded portion obtained by folding the diagonal wire at the edge, and the folded portion that is not locked to the upper and lower horizontal rope members can be attached to and detached from the upper and lower horizontal rope members by attaching / detaching connecting means. It is connected.

  According to the above configuration, since the folded portion of the main net is not locked to the horizontal rope material, the connection to the horizontal rope material can be easily released by the detachable connecting means.

In the present invention, the folded portions of the mesh bodies adjacent to each other are detachably coupled by the detachable coupling means , and the detachable coupling step is a main body having an opening into which the folded portion can be inserted, and It has the closure member which obstruct | occludes the said opening part in the insertion state of a folding | turning part .

  According to the said structure, compared with the case where a folding | turning part is separately connected with an edge rope material etc., the folding | returning parts of the adjacent net | network body can be simultaneously removed by the attachment / detachment connection means, and workability | operativity can be improved. .

  Further, the present invention provides an oblique rope member on the opposite side of the mesh body between the struts, and the oblique rope member includes one of the upper and lower sides of the strut, the other upper and lower portions of the strut adjacent to one side of the strut, It is provided continuously on the upper and lower sides of the column adjacent to one side of the column, and is provided with column connecting means for connecting the end portion of the oblique rope member to the column, and this column connecting unit can be disconnected. .

  According to the above configuration, the end of the diagonal rope material can be loosened by removing it from the support, and in particular, since the diagonal rope material is continuously provided between the plurality of supports, The entire rope material can be loosened.

  Moreover, this invention provides the latching | locking part which the middle of this diagonal rope material latches in the upper and lower sides of the said support | pillar in the middle of the said diagonal rope material, and can remove the middle of the said diagonal rope material from this latching part It is characterized by that.

  According to the said structure, the middle of a diagonal rope material can be removed from a support | pillar.

  Further, the present invention is a protective fence in which struts are erected at intervals on the right and left sides, a net body for capturing captured objects is provided between the struts, and upper and lower lateral rope members are provided between the struts. In the captured object removing method, after loosening at least one of the upper and lower horizontal rope members, an opening is formed between the columns by loosening the mesh body, and the captured object is removed from the opening.

  According to the above configuration, even when the net body is bent and stretched by the trapping object, by loosening at least one of the upper and lower horizontal rope members, the net body can be loosened to form the opening, and the trapping object can be formed from the opening. Can be removed, and in particular, it is possible to remove the trapped object on the anti-mountain side, which was not possible with the conventional protective fence.

  Further, in the present invention, the mesh body has a left-right width corresponding to an interval between adjacent struts, the adjacent mesh bodies are detachably connected, the upper horizontal rope member is loosened, After removing the upper part of the mesh body from the horizontal rope material and loosening the lower horizontal rope material, remove the lower part of the mesh body from the lower horizontal rope material, and connect the left and right upper parts of the mesh body adjacent to the left and right It is characterized by releasing.

  According to the above configuration, by loosening the upper horizontal rope material, the upper part of the net body can be smoothly removed from the upper horizontal rope material, and by loosening the lower horizontal rope material, the lower part of the net body from the lower horizontal rope material Can be removed smoothly, and if one of the upper and lower sides of the mesh body is removed, the connection between the left and right mesh bodies can be easily released.

  Further, the present invention provides an inclined rope member between the columns, and the diagonal rope member includes one of the upper and lower sides of the column, the other column of the column adjacent to the column and the column next to the column. The slanted rope material is loosened before the net body is loosened.

  According to the said structure, it becomes easy to loosen a net | network body by loosening an oblique rope material.

  According to the above configuration, even when the net body is bent and stretched by the captured object, the net body can be loosened and the captured object can be removed to the anti-mountain side.

The protection fence of Example 1 of this invention is shown, FIG. 1 (A) is a front view, FIG.1 (B) is a side view. FIG. 2A is a front view and FIG. 2B is a side view showing the protective fence that has captured the captured object. It is a front view of the principal part of a protection fence same as the above. It is a top view of the principal part of a protection fence same as the above. It is a front view of a support | pillar same as the above. It is a side view of a support | pillar same as the above. It is a side view of a support | pillar upper part same as the above. It is a front view of a wire clip same as the above. It is a front view of a shackle same as the above. It is sectional drawing of the shock absorber which shows Example 2 of this invention. It is a front view of a shock absorber same as the above.

  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 of the configurations described below are not necessarily essential requirements of the present invention. In each embodiment, by adopting a new protection fence different from the conventional one and its captured object removal method, an unprecedented protection fence and its captured object removal method can be obtained. About the protection fence and its captured object removal method Describe.

  Embodiment 1 of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a protective fence 1 that is a protective body such as rock fall, avalanche, collapsed sediment, etc., stands a plurality of columns 3, 3. 3, 3 is provided as a protective surface having flexibility, and this net 4 has a width corresponding to the interval between the columns 3 and 3.

  The upper portions of the adjacent columns 3 and 3 are connected by an upper horizontal member 5 made of a hard material, and the upper horizontal member 5 rotates in the vertical direction with respect to the column 3 around the pivot 6 in the front-rear direction. Further, it is connected to the support column 3 so as to be able to rotate in the front-rear direction by means of a mounting piece 7 provided so as to be horizontally rotatable.

  Upper and lower lateral rope members 11 and 12 are stretched above and below the columns 3, 3. Further, upper and lower locking portions 13 and 14 to which the upper and lower horizontal rope members 11 and 12 can be engaged and disengaged are provided at the upper and lower front portions of the support columns 3 and 3.

  The upper locking portion 13 is provided with a horizontal plate 15 that is an upper member on the upper side and an inverted U-shaped mold material 16 that is a lower member on the lower side, and the front side is opened between the horizontal plate 15 and the mold material 16. A horizontal groove portion 17 is formed, holes 15K and 16K are formed in the horizontal plate 15 and the mold material 16, a rope material is inserted into the horizontal groove portion 17, and a retaining member 18 is inserted into the holes 15K and 16K. The lateral groove portion 17 is closed, and the split pin 19 is inserted and locked into the hole 18A formed at the tip of the retaining member 18 to prevent the retaining member 18 from coming off. Conversely, the rope member can be removed from the lateral groove portion 17 by pulling out the split pin 19 and pulling out the retaining member 18.

  Further, the lower locking portion 14 is provided with the inverted U-shaped mold material 16 which is an upper member on the upper side and the horizontal plate 15 which is a lower member on the lower side, and between the horizontal plate 15 and the mold material 16, A lateral groove portion 17 having an opening on the front side is formed, and the lateral groove portion 17 is closed using a retaining member 18 and a split pin 19.

  The upper and lower horizontal groove portions 17 and 17 are inserted in the middle of the upper and lower horizontal rope members 11 and 12, and a later-described oblique rope member is inserted into the corresponding horizontal groove portion 17.

  Next, the support | pillar connection structure 21 of the edge part of the horizontal rope materials 11 and 12 is demonstrated. As shown in FIG. 3, a connecting ring 22 having a diameter larger than that of the support column 3 is arranged on the support column 3 at the end, and the connection ring 22 is inserted into the lateral groove portion 17 to regulate the vertical position. The overlapping portions 11A and 12A, in which the end portions of the horizontal rope members 11 and 12 are folded, are hooked and fixed, and the overlapping portions 11A and 12A are sandwiched and fixed by a plurality of wire clips 23 serving as attachment / detachment fixing means. Conversely, by removing the wire clip 23, the ends of the horizontal rope members 11 and 12 can be removed from the support 2. The overlapping portion is a portion where the end portions of the horizontal rope members 11 and 12 are folded back 180 degrees and the end portions of the horizontal rope members 11 and 12 are overlapped with the original horizontal rope members 11 and 12.

  In the protective fence 1, diagonal rope members 31, 32 are diagonally stretched between the support columns 3, 3, 3, 3 on the opposite side of the net 4. One of the diagonal rope members 31 includes the upper end of the support 3 at the left end in the figure, the lower engaging portion 14 of the support 3 adjacent to one side (right adjacent) of the support 3, and one side of the support 3. The upper locking portion 13 of the adjacent column 3 and the lower end column 3 are continuously stretched. The other of the diagonal rope members 32 is below the support 3 at the left end in the drawing, above the support 3 of the support 3 adjacent to the one side (right adjacent) of the support 3, and one side of the support 3. It is continuously stretched between the lower locking portion 14 of the adjacent column 3 and the column 3 at the right end. The diagonal rope members 31 and 32 form a diagonal line between the support columns 3 and 3.

  There is no other horizontal rope member between the upper and lower horizontal rope members 11 and 12, and the diagonal rope members 31 and 32 support the load applied to the net body 4.

  As shown in FIG. 4, the strut connection structure 21 </ b> A at the ends of the diagonal rope members 31, 32 has a connection ring 22 </ b> A having a diameter larger than that of the support 3 at the support 3 at the end. Inserted into the lateral groove portion 17 to regulate the vertical position, the overlapping portions 31A, 32A obtained by folding back the end portions of the oblique rope members 31, 32 are latched to the connecting ring 22A, and the overlapping portions 31A, 32A are fixed. It is sandwiched and fixed by a plurality of wire clips 23 as means. On the other hand, by removing the wire clip 23, the ends of the diagonal rope members 31 and 32 can be removed from the support column 2. The wire clip 23 includes a U bolt 24 and a main body 25 through which the U bolt 24 is inserted, and the overlapping portion is sandwiched between the U bolt 24 and the main body 25.

  Moreover, in the horizontal groove part 17 of the intermediate | middle support | pillar 3, the middle of the upper and lower horizontal rope materials 11 and 12 and the middle of the diagonal rope materials 31 and 41 are made into the retaining state.

  The mesh body 4 includes a wire net 41 that is a main net where a plurality of diagonal wire rods 42 and 42 intersect, and a metal net 43 such as a turtle shell metal net that is an auxiliary net that is bundled and overlapped with the wire net 41. Is smaller than the mesh of the wire net 41. One oblique wire 42 of the wire net 41 is disposed obliquely from the upper left to the lower right, the other oblique wire 42 is disposed in the opposite direction and obliquely directed from the upper right to the lower left. 4 has a folded-back portion 44 that is folded back at approximately 90 degrees, and is continuous.

  The upper and lower sides of the mesh body 4 are detachably attached to the upper and lower horizontal rope members 11 and 12, and specifically, the folded portion 44 at the edge of the mesh body 4 is attached to the upper and lower portions by a shackle 45 serving as a detachable connecting means. It is fixed to the lower horizontal rope members 11 and 12 so as to be detachable. Therefore, if the shackle 45 is removed, the net 4 can be removed from the upper and lower horizontal rope members 11 and 12. The shackle 45 opens and closes both ends of the U-shaped body 46 by inserting nut-attached bolts 47 at both ends. The attachment / detachment connecting means may be various types as long as it has a main body 46 having an opening into which the folded portions 44, 44 can be inserted, and a closing member such as a bolt 47 with a nut that closes the opening in the inserted state. Can be used.

  The mold member 14 has left and right holes 51, 51, and pins 52 are inserted into the holes 51, 51. An up-and-down edge rope member 53 is disposed on the support column 3, ring portions 54 and 54 are provided at both ends of the edge rope member 53, and the pins 52 and 52 are inserted into the upper and lower ring portions 54 and 54. Thus, the edge rope member 53 is stretched along the support column 3.

  As shown in FIGS. 4 and 5, the horizontal plate 15 </ b> A and the mold material 16 </ b> A are arranged on the column 3 of the terminal together with the front horizontal plate 15 and the mold material 16 and vertically on the left and right center sides of the column 3 of the terminal. Provide. The horizontal plate 15A and the mold material 16A have the same configuration as that of the previous horizontal plate 15 and the mold material 16 except that their positions are different. In FIG. 3, the edge rope material 53 is stretched along the support column 3 using a horizontal mold material 16 </ b> A, and in FIGS. 1 and 2, the edge rope material is used using the previous mold material 16. The example which stretched 53 along the support | pillar 3 is shown. Further, in the intermediate support column 3, two or one edge rope members 52 are stretched between the upper and lower mold members 16 and 16. In FIG. 3, two edge rope members 52 are shown.

  And in the support | pillar 3 of a terminal, the said folding | returning part 44 of the edge of the net body 4 is detachably fixed to the said rope material 53 by the said shackle 45 which is a fixing means. Moreover, in the intermediate | middle support | pillar 3, the said folding | returning parts 44 and 44 of the edge of the right-and-left net | network bodies 4 and 4 which pinch | interpose this support | pillar 3, and the said two or one (two are shown in FIG. 3) are said one. The shackle 45 is detachably fixed. In addition, it is preferable to provide the shackle 45 in all the folding | returning parts 44. FIG. Therefore, if the shackle 45 is removed, the net 4 can be removed from the right and left edge rope members 53, 53.

  Next, the removal method of the captured matter in the said protective fence 1 is demonstrated. In addition, although there are earth and sand, falling rocks, avalanches, etc. as the captured objects, the earth and sand D will be described as an example.

  As shown in FIG. 1, when the protective fence 1 captures the collapsed earth and sand D from the mountain side, the net 4 is in a tension state, and it is difficult to remove the shackle 45 around the net 4 in this state. .

  Therefore, first, the wire clip 23 is removed at the ends of the oblique rope members 31 and 32, and the oblique rope members 31 and 32 are loosened. Moreover, in the middle support | pillar 3, the middle of the diagonal rope materials 31 and 32 is removed from the horizontal groove part 17 (FIG. 1).

  Next, in the support coupling structure 21 of the upper horizontal rope member 11, the wire clip 23 is removed, the end of the upper horizontal rope member 11 is removed from the support 3, and the upper horizontal rope member 11 is loosened. When the upper horizontal rope member 11 is loosened, the shackle 45 that connects the upper horizontal rope member 11 and the net body 4 is removed, and the connection between the upper horizontal rope member 11 and the net member 4 is released.

  After the slack rope members 31 and 32 and the upper horizontal rope member 11 are loosened in this way, the left and right shackles 45 can be removed at the upper part of the net body 4. After loosening the diagonal rope members 31 and 32 and the upper horizontal rope member 11, the wire clip 23 is removed from the support connection structure 21 of the lower horizontal rope member 12, and the end of the lower horizontal rope member 12 is removed from the support 3. Loosen the horizontal rope member 12. After loosening the lower horizontal rope member 12, the left and right shackles 45 of the mesh body 4 are removed, whereby the mesh body 4 can be opened and an opening 55 can be formed in which the space between the columns 3 and 3 is fully opened. Depending on the amount of earth and sand D, the left and right shackles 45 of the mesh body 4 may be removed and the lower side of the mesh body 4 may be lifted upward to form a partial opening 55 between the columns 3 and 3. Good. In addition, since the rope material 53 for edges does not loosen, the net body 4 can be easily attached after the earth and sand D is removed.

  After the opening 55 is formed between the columns 3 and 3 as described above, the earth and sand D can be discharged from the opening 55 to the anti-mountain side and removed. In addition, when the net 4 is removed, after removing the earth and sand D, the upper and lower horizontal rope members 11 and 12 are re-stretched, and the space between the columns 3 and 3 is closed by the removed net 4 or the new net 4. The slanted rope members 31 and 32 can be repaired and restored.

  As a modification, the upper and lower horizontal rope members 11 and 12 are loosened according to the conditions of the captured earth and sand D, and then the shackle 45 is removed, and the upper and lower horizontal rope members 11 are moved up and down one of the left and right sides of the net 4. 12, and the left and right edges of the mesh body 4 are removed from the adjacent mesh body 4, thereby forming the openings 55 on the left and right sides of the mesh body 4 to discharge and remove the earth and sand D. In this case, it is preferable to form the opening 55 so that half or more of the left and right sides of the net body 4 are turned to the other side. In the case of the support column 3 at the end, the left and right edges of the net 4 are removed from the edge rope material 53. In addition, after loosening the upper and lower horizontal rope members 11, 12 or after loosening the lower horizontal rope member 12, the shackle 45 is removed and the lower side of the left and right sides of the net 4 is removed from the lower horizontal rope member 12. Then, the lower side of one of the left and right edges of the mesh body 4 is removed from the adjacent mesh body 4, and an opening 55 is formed by raising the lower corner of the removed mesh body 4, and the earth and sand D are discharged from the opening 55. Further, after the upper and lower horizontal rope members 11 and 12 are loosened, or after the lower horizontal rope member 12 is loosened, the shackle 45 is removed and the lower portion of the net body 4 is lowered to the lower horizontal rope. While removing from the material 12, the lower side of both sides of the mesh body 4 is removed from the adjacent mesh body 4, and an opening 55 is formed so as to scoop up the lower side of the removed mesh body 4. The earth and sand D may be discharged and removed.

  As described above, in this embodiment, the support columns 3 and 3 are erected with a space left and right, and the net body 4 is provided between the support columns 3 and 3, and the upper and lower horizontal rope members 11 and In the protective fence provided with 12, the mesh body 4 has a left-right width corresponding to the interval between the adjacent support columns 3, 3, and connects the adjacent mesh bodies 4, 4 so as to be detachable. A column connecting means 21 is provided which is detachably connected to the lower horizontal rope members 11 and 12 and connects the ends of the upper and lower horizontal rope members 11 and 12 to the column 3, and the column connecting unit 21 can be disconnected. Therefore, the ends of the upper and lower horizontal rope members 11 and 12 can be removed from the support column 3 and loosened, and the net body 4 can be loosened or removed in units between the support columns 3. Removal of earth and sand D to the opposite mountain side becomes possible.

Further, in this embodiment Thus, netting 4, and an auxiliary network serving wire mesh 43 which diagonal member 42 is united overlaid on the wire net 41 and serving as the main network wire nets 41 which intersect, the wire mesh The mesh 43 is smaller than the mesh of the wire net 41, and the wire net 41 has a folded portion 44 by folding back the oblique wire 42 at the edge, and the upper and lower horizontal rope members 11 and 12 are connected to the upper and lower horizontal ropes. The folded portions 44 that are not locked to the members 11 and 12 are detachably connected by shackles 45 that are detachable connecting means, and the folded portions 44 of the wire net 41 are not locked to the lateral rope members 11 and 12. Therefore, the connection to the horizontal rope members 11 and 12 can be easily released by the shackle 45.

As described above, in this embodiment , the folded portions 44, 44 of the adjacent nets 4, 4 are detachably connected by the shackle 45 as the detachable connecting means , and the shackle 45 has an opening into which the folded portion 44 can be inserted. And a bolt 47 with a nut as a closing member that closes the opening in the inserted state of the folded portion 44 , compared with a case where the folded portions 44, 44 are separately connected to an edge rope material or the like. The folding portions 44, 44 of the adjacent nets 4, 4 can be removed simultaneously by the shackle 45, and workability can be improved.

  As described above, in this embodiment, the diagonal rope members 31 and 32 are provided between the support columns 3 and 3 on the opposite side of the net body 4, and the inclined rope members 31 and 32 are connected to the upper and lower sides of the support column 3 and the support columns. 3 is connected to the upper and lower other side of the column 3 adjacent to one side and the upper and lower side of the column 3 adjacent to one side of the column 3 and connects the ends of the diagonal rope members 31 and 32 to the column 3. Since the means 21A is provided and the strut connecting means 21 can be released, the ends of the slanted rope members 31 and 32 can be removed from the struts 2 and loosened. In particular, the slanted rope members 31 and 32 include a plurality of struts. Since it is continuously provided between 3 and 3, the entire sloping rope members 31 and 32 can be loosened only by removing the end.

  As described above, in this embodiment, the locking portions 13 and 14 that are locked in the middle of the diagonal rope members 31 and 32 are provided on one of the upper and lower sides of the column 3 in the middle of the diagonal rope members 31 and 32. Since the middle portions of the diagonal rope members 31 and 32 can be removed from the stop portions 13 and 14, the middle portions of the diagonal rope members 31 and 32 can be removed from the support column 3.

  In this way, in this embodiment, the support columns 3 and 3 are erected at intervals on the left and right sides, and the net body 4 that captures the earth and sand D that is captured is provided between the support columns 3 and 3. In the method of removing the captured matter of the protective fence 1 provided with the upper and lower horizontal rope members 11 and 12 between the three, after loosening at least one of the upper and lower horizontal rope members 11 and 12, Since the opening 55 is formed between the three and the trapped matter is removed from the opening 55, even when the net body 4 is bent and stretched by the earth and sand D, by loosening at least one of the upper and lower horizontal rope members 11 and 12 By removing the shackle 45 around the mesh body 4, the mesh body 4 can be loosened to form the opening 55, and the earth and sand D can be removed from the opening 55 to the anti-mountain side. It is possible to remove earth and sand D, which was captured on the opposite side of the mountain To become. When the net 4 is loosened, it is not necessary to remove all the shackles 45 of the upper and lower horizontal rope members 11 and 12.

  In this way, in this embodiment, the mesh body 4 has a left-right width corresponding to the interval between the adjacent struts 3, 3. The adjacent mesh bodies 4, 4 are detachably connected to each other, and the upper horizontal rope member After loosening 11, remove at least a part of the upper part of the net body 4 from the upper horizontal rope member 11, loosen the lower horizontal rope member 12, and then remove at least a part of the lower part of the net member 4 from the lower horizontal rope member 12. Since the upper and lower rope members 11 are loosened, the upper portion of the mesh member 4 can be smoothly removed from the upper horizontal rope member 11 and the lower horizontal member can be removed. By loosening the rope material 12, the lower part of the mesh body 4 can be smoothly removed from the lower horizontal rope material 12. When the upper and lower sides of the mesh body 4 are removed, the connection between the left and right mesh bodies 4 and 4 is also released. It becomes easy.

  In this way, in this embodiment, the slanted rope members 31 and 32 are provided between the struts 3 and 3, and the slanted rope members 31 and 32 are arranged on the upper and lower sides of the strut 3 and a strut adjacent to one side of the strut 3. 3 and the upper and lower sides of the column 3 adjacent to the one side of the column 3 are continuously provided, and the slanted rope members 31 and 32 are loosened before the mesh body 4 is loosened. .

  Further, as an effect of the embodiment, after loosening the upper horizontal rope member 11, the shackle 45 is removed to remove at least a part of the upper portion of the net body 4 from the upper horizontal rope member 11, and then to the left and right. After releasing the connection of at least a part of the upper side of the mesh bodies 4, 4, and then loosening the lower horizontal rope material 12, after removing at least a part of the lower part of the mesh body 4 from the lower horizontal rope material 12, Since at least a part of the lower side of the mesh bodies 4 and 4 adjacent to each other on the left and right is released, and then the remaining shackles 45 are removed in an appropriate order and the entire circumference of the mesh body 4 is released. The mesh body 4 that receives a load due to D or the like can be removed smoothly. In addition, after loosening at least one of the lower horizontal rope members 11 and 12 and the diagonal rope members 31 and 32, the mesh body 4 is removed, so the mesh body 4 is removed and the entire space between the columns 3 and 3 is opened. The earth and sand D can be removed.

  Further, as an effect of the embodiment, the opening 55 is formed by forming a part of the mesh body 4 so as to cover a part of the mesh body 4 without removing the entire mesh body 4 without removing the entire mesh body 4. The earth and sand D can be discharged to the valley side, and in this case, since the whole is not removed, the recovery becomes easy.

  Further, as the effect of the embodiment, the slanted rope members 31 and 32 are disposed on the opposite side of the mesh body 4, so that the mesh body 4 can be reliably supported by the slanted rope members 31 and 32. Further, the folded portion 44 at the edge of the mesh body 4 is detachably fixed to the upper and lower horizontal rope members 11 and 12 by a shackle 45 as attachment / detachment connecting means, and the intermediate support 3 sandwiches the support 3. The folded portions 44, 44 at the edges of the left and right nets 4, 4 and two or one are fixed detachably by one shackle 45, and thus the net 4 has no rope material around it, By removably fixing the folded portion 44 of the net body 4 to the edge rope member 53 provided on the support column 3 side, the net body 4 can be reliably fixed. Moreover, since there is no horizontal rope material which supports the net body 4 between the upper and lower horizontal rope members 11 and 12, the net body 4 can be easily removed. Furthermore, since the rope members 11, 12, 31, 32 are stretched through the connecting rings 22, 22A, after loosening, the work of stretching the rope members 11, 12, 31, 32 can be easily performed again. . Moreover, since the middle of the upper and lower horizontal rope members 11 and 12 and the middle of the oblique rope members 31 and 32 are detachably inserted into the upper and lower horizontal groove portions 17 and 17, the rope members 11, 12, 31, The arrangement work 32 and the removal work can be easily performed.

  10 and 11 show a second embodiment of the present invention. The same reference numerals are given to the same portions as those of the first embodiment, and detailed description thereof will be omitted. In this example, the oblique rope member 31 is described in detail. , 32 is provided with a shock absorber 60.

  The buffer 60 is exemplified by two clamps 61, 61, a bolt 62 for tightening, a nut 63, and the like. The end portions 31T, 31T, 32T, and 32T are formed by dividing the diagonal rope members 31 and 32, and the two grooves 65 and 65 that store the end portions 31T, 31T, 32T, and 32T, respectively, are sandwiched. Engraved in the bodies 61, 61, and sandwiched between the ends 31T, 31T, 32T, 32T so that the ends 31T, 31T, 32T, 32T are accommodated in the grooves 65, 65, The bolts 62 are inserted into the through holes 66, 66 of the sandwiching bodies 61, 61 and tightened with nuts 63, and the end portions 31T, 31T, 32T, 32T are gripped. The clamping force (crimping force) of the end portions 31T, 31T, 32T, and 32T can be adjusted by the tightening force of the bolt 62 and the nut 63. And the extra length part which the end parts 31T, 31T, 32T, and 32T can slide sufficiently is protruded. When the end portions 31T, 31T, 32T, and 32T are gripped with a predetermined frictional force by the bolt 62 and the nut 63, and the tension more than the setting acts on the oblique rope members 31, 32, the end portions 31T, 31T, 32T, and 32T Is allowed to slide. By providing the shock absorber 60 in this way, the end portions 31T, 31T, 32T, and 32T slide relative to the shock absorber 20, so that the impact energy can be effectively absorbed.

  In particular, since the diagonal rope members 31 and 32 are continuous over the entire length of the protective fence 1, the impact energy applied to the diagonal rope members 31 and 32 can be increased by providing at least one each on the diagonal rope members 31 and 32. Can be absorbed.

In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible. For example, in the embodiment, the detachable support column connection structures 21 and 21A are provided at both ends of the rope members 11, 12, 31, and 32. However, a removable support column connection structure may be provided only at one end. Further, Oite to claim 2, 3, can of course be used safety barrier 1 without oblique rope materials 31 and 32. Further, in the embodiment, the diagonal rope material is continuously arranged between the four support columns, but the diagonal rope material may be continuously provided between at least three support columns. Further, an edge rope material for maintaining the shape of the mesh body 4 may be provided around the mesh body 4, and the edge rope material includes the upper and lower lateral rope materials 11 and 12 and the edge rope material. 53 is provided in a non-locking state, and the net body 4 having the edge rope material can be attached to and detached from the upper and lower horizontal rope materials and the adjacent net body by shackles as in the embodiment. Connect to Furthermore, the auxiliary net is not limited to a metal net such as a turtle shell metal net, and other than the metal net, a resin net or the like can be used.

1 Guard fence (protector)
3 Prop 4 Net (Protective surface)
13 Upper locking portion 14 Lower locking portion 21 Column connection structure 21A Column connection structure 23 Wire clip (detachment and fixing means)
31 Diagonal rope material 32 Diagonal rope material
43 Wire mesh (auxiliary mesh)
45 Shackle (detachable connection means)
47 Bolt with nut 53 Rope material 55 for edge

Claims (4)

In the protective fence which provided the net between the pillars and provided the upper and lower horizontal rope members between the pillars, with the pillars standing upright and spaced apart from each other,
The mesh body has a left-right width corresponding to the interval between adjacent struts, removably connects the adjacent mesh bodies, and removably connects the mesh bodies to the upper and lower horizontal rope members, Prop connecting means for connecting the ends of the upper and lower horizontal rope members to the struts is provided, and the strut connecting means can be disconnected .
The mesh body includes a main net intersecting diagonal wires and an auxiliary net that is bundled and overlapped with the main net. The mesh of the auxiliary net is smaller than the mesh of the main net, and the main net has the diagonal at the edge. A folded portion having folded wire rods is connected to the upper and lower horizontal rope members, and the folded portions that are not locked to the upper and lower horizontal rope members are detachably connected by a detachable connecting means, and adjacent to each other. The folds of the net body are detachably connected by the detachable connecting means,
The said attachment / detachment connection step | paragraph has a main body which has an opening part which can insert the said folding | returning part, and the obstruction | occlusion member which obstruct | occludes the said opening part in the insertion state of the said folding | returning part . An oblique rope member is provided between the struts, and the slant rope member is continuous with one of the upper and lower ends of the strut, the other upper and lower portions of the strut next to the strut, and the upper and lower portions of the strut next to the strut. provided Te, the strut connecting means for connecting the ends of the oblique rope materials to the strut is provided, according to claim 1 Symbol placement of fences this strut connecting means and wherein the releasable connection. One of the upper and lower sides of the strut in the middle of the diagonal rope member is provided with a latching portion for latching the middle of the diagonal rope member, and the middle of the diagonal rope member is removable from the latching portion. The protective fence according to claim 2 . With upright posts at predetermined intervals in the left-right, between the posts, the mesh member to capture the scavenger is provided, the upper between said post, the lower transverse rope materials provided, prior SL on, the lower transverse rope materials A method for removing a captured object from a protective fence, wherein an opening is formed between the support columns by loosening at least one of the mesh bodies and then the captured object is removed from the opening .
An oblique rope member is provided between the struts, and the slant rope member is continuous with one of the upper and lower ends of the strut, the other upper and lower portions of the strut next to the strut, and the upper and lower portions of the strut next to the strut. And loosen the diagonal rope material before loosening the mesh body,
The mesh body has a left-right width corresponding to the interval between the adjacent struts, and the adjacent mesh bodies are detachably connected to each other, and after the upper horizontal rope material is loosened, the mesh is separated from the upper horizontal rope material. Remove the top of the body, after loosening the lower transverse rope materials, remove the lower portion of the network element from said lower transverse rope materials, you and cancels the connection of the network bodies adjacent to the right and left complement removal method of proof Mamorusaku.

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