JP4590485B1 - Shock absorber for protective fence network - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shock absorber for a protective fence net that can improve the impact absorption effect by the net body by increasing the deformation amount of the net body when an impact force such as falling rocks, landslides, and avalanches acts. To do.
A net body 4 includes a net body folding portion 24 obtained by folding an oblique wire rod serving as a wire rod at an edge portion and a net body intersection portion 23 where the diagonal wire rod intersects. The mesh body folding portion 24 or the mesh body intersection portion 23 is connected to the upper horizontal rope material 11 or the vertical rope material 52 which is a connected material of the protective fence 1. When impact energy is applied to the mesh body 4 due to falling rocks or the like, the shock absorber 30 frictionally slides against the buffer rope material 40 by the mesh body folding portion 24 or the mesh body intersection portion 23 to absorb the impact energy, When the shock absorber 30 moves, the amount of bending of the net body 4 can be increased, and the impact energy absorption effect can be improved.
[Selection] Figure 2

Description

  The present invention relates to a shock absorber for a protective fence net.

  Conventionally, as an example of a protective fence using this type of shock absorber for a net body, foundation concrete provided at the boundary between a slope and a road, pillars installed on the foundation concrete at a predetermined interval, and a belt-like shape between these pillars There is a protective fence (for example, Patent Document 1) composed of a protective net stretched around.

  In addition, it is a wire net that has struts provided at predetermined intervals, a horizontal rope material is provided between the struts, a buffer portion is provided in the middle of the horizontal rope material, and the struts are hooked between the horizontal rope materials. A protective fence that is shielded and includes a surplus portion formed by polymerizing the rope material in the middle of the horizontal rope material, and a clamping tool that sandwiches the surplus length portion with a constant force (for example, Patent Documents) 2), protective fences with multiple layers of concrete or metal between each support, and the upper part of the support and the slope on the front of the support are connected by a control rope. A guard fence (for example, Patent Document 3) provided with a shock absorber that grips the holding rope material in an acceptable manner on the way is known.

  In addition to providing a shock absorber in the middle of the rope material in this way, a support rope in the horizontal direction is provided between the struts, and the folded portion of the net rope that is a net body and the support rope are gripped by the end gripping tool, There is a protective fence (for example, Patent Document 4) that attenuates energy by a gripping portion.

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

  In the protective fence of the above-mentioned Patent Document 4, the mesh body can frictionally slide and absorb the impact force, but the deformation amount of the entire mesh body is small, and if the deformation amount of the mesh body is increased, the impact energy is attenuated. An effect can be improved and the force added to a support | pillar can be reduced.

  Accordingly, the present invention provides a protection fence body buffer that can improve the impact absorption effect of the mesh body by increasing the deformation amount of the mesh body when an impact force such as falling rocks, landslides, and avalanches acts. An object is to provide an apparatus.

(1) The present invention includes a support column provided upright at an interval, and a network element provided between the struts used in the proof Mamorusaku that includes a gripping buffer rope material bumper, the network element Has a mesh body folded portion obtained by folding a wire material at an edge and a mesh body intersecting portion where the wire material intersects, and by using the buffering rope material and the cushioning tool , the mesh body folded portion or the mesh body. intersections, coupled to the coupling member provided on the protection barrier outside the network element, applied to the sliding said cushioning rope materials with respect to the bumper by the movement of the front SL network element to the network element impact and wherein and Turkey to absorb the force.

  According to the above configuration, when impact energy is applied to the mesh body due to falling rocks or the like, the shock absorber is frictionally slid against the buffer rope material by the mesh body folded portion or the mesh body intersecting portion, and the impact energy is absorbed. By moving the shock absorber, it is possible to increase the amount of bending of the net body and improve the impact energy absorption effect.

  (2) Further, in the present invention, an end portion of the buffer folded portion obtained by folding the buffer rope material is gripped by the cushioning device to form a buffer folded ring portion, and the buffer folded ring portion is attached to the covered loop portion. It is connected to a connecting material, and the mesh body folded portion or the mesh body intersecting portion is locked to the buffer folded ring portion.

  According to the above configuration, when impact energy is applied to the mesh body due to falling rocks, etc., the shock absorber frictionally slides against the shock-absorbing rope material by the mesh body folding portion or the mesh body crossing portion that is locked to the shock absorber. By absorbing energy and moving the shock absorber, it is possible to increase the amount of bending of the net body, and to improve the impact energy absorption effect.

  (3) Further, the present invention is characterized in that the mesh body folded portion or the mesh body intersecting portion is inserted and locked into the buffer folded ring portion.

  According to the said structure, by inserting the said net | network folding | returning part or the said net | network crossing part in the said folding | returning ring | wheel part for buffering, it can be latched to a buffer tool and a buffer apparatus with a simple structure is obtained.

  (4) Moreover, this invention provided the latching | locking part which latches the said mesh body folding | returning part or the said mesh body crossing part in the said buffer.

  According to the above configuration, the mesh body folded portion or the mesh body intersecting portion can be latched to the shock absorber by the latching portion by the latching portion, and a shock absorber having a simple structure can be obtained.

  (5) Moreover, this invention superposes | polymerizes the said buffering rope material, forms a ring | wheel part, hold | grips the said superposition | polymerization part of the said buffering rope material with the said buffer, and is connected with the said to-be-connected material by the said ring part. The buffer folded portion or the mesh intersection is connected.

  According to the above configuration, when impact energy is applied to the mesh body by falling rocks or the like, the connected material and the ring portion connected to the mesh body folding portion or the mesh body intersection portion are subjected to a force in the opening direction, whereby the shock absorber is buffered. Friction sliding with respect to the rope material for absorbing impact energy, and by opening the ring portion, it is possible to increase the amount of flexure of the mesh body and improve the impact energy absorption effect.

  (6) Further, the present invention is characterized in that the looped-back portion for buffering or the mesh body intersection is inserted into the ring portion.

  According to the said structure, it can connect with a ring | wheel part by inserting the said net | network folding | returning part or the said net | network crossing part, and a structure simple buffer apparatus is obtained.

(7) Further, in the present invention, the buffer rope material is inserted into the meshes of the plurality of mesh folding portions or the meshes of the mesh intersecting portions , and both ends of the buffer rope material are folded in the opposite directions. The folded portion is locked to the connected portion of the protective fence, the opposite end portions are overlapped, and the overlapped portion is gripped by the buffer.

  According to the above configuration, when impact energy is applied to the mesh body by falling rocks or the like, tension is applied to the buffer rope material inserted through the plurality of mesh folding portions or the mesh intersection portions, thereby grasping the overlapping portions at both ends. The end of the cushioning rope material frictionally slides against the shock absorber to absorb the impact energy, and the frictional sliding of the cushioning rope material can take a large amount of flexure of the net body. The energy absorption effect can be improved.

(8) Further, in the present invention, the buffer rope material is inserted into the meshes of the plurality of mesh folding portions or the meshes of the plurality of mesh body crossing portions , and the buffer rope material corresponds to both end portions of the buffer rope material. The shock absorbers are respectively provided on the members to be connected to the protective fence, and both end portions of the buffer rope material are respectively held by the shock absorbers on both sides.

  According to the above configuration, when impact energy is applied to the mesh body by falling rocks or the like, tension is applied to the buffer rope material inserted through the plurality of mesh body folded portions or mesh body intersections, and thereby the cushioning device grips both ends. In contrast, the end portion of the buffer rope material frictionally slides to absorb impact energy, and the frictional sliding of the buffer rope material allows a large amount of flexure of the net body to be absorbed. The effect can be improved.

(9) Further, the present invention is the a connecting rope materials forming a pair of the connecting member is provided in the safety barrier, and spaced a connecting rope materials forming the pair, forming them pairs The one and the other connecting rope members are movably locked with the folded portions of the buffer rope materials folded back at the tip side, and the mesh body folded portion or the mesh body crossing portion is coupled to the tip side, A surplus length portion is provided on the other side of the cushioning rope member, the surplus length portions of the one and the other cushioning rope members are superposed, and the superposed portion is held by the cushioning tool.

  According to the above configuration, when impact energy is applied to the mesh body by falling rocks or the like, one-side tension is applied to the tip side of the buffer rope material connecting the plurality of mesh body folded portions or mesh body intersection portions, thereby The tension that pulls the surplus part to the other side is generated, the surplus part frictionally slides against the shock absorber to absorb the impact energy, and the amount of flexure of the net body is reduced by the frictional sliding of the buffering rope material. It can take large, and the impact energy absorption effect can be improved.

  (10) Moreover, this invention is characterized by the said to-be-connected material being the rope material for a connection provided in the said guard fence.

  According to the above configuration, when the buffer rope material is frictionally slid with respect to the shock absorber, the net bending portion or the net crossing portion moves away from the connecting rope material, thereby reducing the amount of bending of the net body. It can take large, and the impact energy absorption effect can be improved.

  Moreover, this invention can use the said rope material for a connection as the horizontal rope material provided between the said support | pillars.

  According to the above configuration, when the buffering rope material is frictionally slid with respect to the shock absorber, the net body bending portion or the net crossing portion moves away from the horizontal rope material, thereby increasing the amount of bending of the net body. It is possible to improve the absorption effect of impact energy.

  Moreover, this invention can provide the stopper latched to the said buffer at the edge part of the said buffer rope material.

  According to the above configuration, when the buffering rope material is frictionally moved by a predetermined amount, the stopper is locked to the buffering tool, and thereafter, the shock energy is absorbed by the tension of the buffering rope material without frictional sliding. Can do.

  According to the above configuration, when impact energy is applied to the mesh body due to falling rocks, etc., the shock absorber frictionally slides against the buffer rope material due to the movement of the mesh body folding portion or the mesh body crossing portion to absorb the impact energy. Moreover, the amount of flexure of the net body can be increased by the movement of the shock absorber, and a protective fence excellent in impact energy absorption effect can be provided.

  Moreover, since it connects using a net | network folding | returning part or a net | network crossing part, the connection operation | work of the net | network to a protection fence becomes easy.

It is a rear view which shows the protection fence of Example 1 of this invention. It is a rear view of the principal part same as the above. It is a top view same as the above. It is a side view same as the above. It is a front view of the principal part of a wire net same as the above. It is a top view of a shock absorber same as the above. It is a rear view of a buffer structure same as the above. It is a front view of a shackle same as the above. It is a rear view of the support | pillar upper part of an edge part same as the above. It is a rear view of the lower part support | pillar same as the above. It is a side view of a support | pillar upper part same as the above. It is a side view of a support | pillar lower part same as the above. It is a side view explaining the state which folds up and down the edge part of a rope material for buffering in the reverse direction same as the above. It is a rear view of an intermediate | middle support | pillar upper part same as the above. It is a rear view of an intermediate | middle support | pillar lower part same as the above. It is a top view of the support | pillar of an edge part same as the above. It is a top view of the principal part of a reserving rope material of a side part same as the above. It is a top view of an intermediate | middle support | pillar same as the above. It is a front view of a wire clip same as the above. It is a rear view of the buffer structure which shows Example 2 of this invention. It is a rear view of the buffer structure which shows Example 3 of this invention. It is a rear view of the buffer structure which shows Example 4 of this invention. It is a rear view of the buffer structure which shows Example 5 of this invention. It is a rear view of the buffer structure which shows Example 6 of this invention. It is a rear view of the buffer structure which shows Example 7 of this invention. It is a front view of the principal part of the wire net of the modification which shows Example 8 of this invention.

  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 network shock absorber that is different from the conventional one, an unprecedented protection fence network shock absorber can be obtained. Describe.

  Hereinafter, Example 1 of the present invention will be described with reference to FIGS. As shown in FIG. 1, a protective fence 1 which is a protective body such as rock fall, avalanche, collapsed earth and sand, etc., is provided with a plurality of support columns 3 standing at a predetermined interval on a concrete foundation 2 which is an installation location. A mesh body 4 as a protective surface having flexibility is provided between the columns 3 arranged side by side. The support 3 is exemplified by a steel pipe having a circular cross section.

  Upper and lower lateral rope members 11 and 12 are stretched above and below the column 3. The upper and lower lateral rope members 11 and 12 can be engaged with and disengaged from the upper and lower rear portions of the support column 3, and upper and lower locking portions 13 and 14 are provided to lock the support columns 3 and 3 at both ends. End portions of the upper and lower horizontal rope members 11 and 12 are connected to the portions 13 and 14.

  There is no other horizontal rope material between the upper and lower horizontal rope members 11 and 12.

  As shown in FIG. 5, the mesh body 4 includes a wire net 21 in which a plurality of oblique wire rods 22, 22 made of a twisted steel wire intersect, and the mesh wire intersection 23 of the oblique wire rods 22, 22. The other diagonal wire 22 is inserted into the one diagonal wire 22 and the other diagonal wire 22 is knitted into the one wire 22, and the net crossing portion 23 adjacent in the length direction of the diagonal wire 22 is Crossing portions 23 that are inserted into the other diagonal wire rod 22 and netting intersection portions 23 through which the one diagonal wire rod is inserted are alternately arranged. Further, one diagonal wire 22 of the wire net 21 is disposed obliquely from the upper left to the lower right, and the other oblique wire 22 is disposed in an opposite direction and obliquely directed from the upper right to the lower left. The edge of the mesh body 4 has a mesh body folding portion 24 that is folded back at approximately 90 degrees, and the diagonal wire rods 22 and 22 are continuous at the folding portion 24.

  The diameter of the wire 22 of the wire net 21 is 9 to 14 mm, the tensile strength is 30 to 90 kN, and the diagonal width W of the mesh of the wire net 21 is 300 to 600 mm.

  The wire net 21 is connected to the upper horizontal rope member 11 as a member to be connected using a buffering rope member 40 including a buffer 30 and a wire rope.

  As shown in FIG. 6, the shock absorber 30 is composed of two clamping bodies 31, 31, and a fastening tool 34 such as a fastening U bolt 32 and a nut 33. Two grooves 35 and 35 for accommodating the buffering rope members 40 and 40, respectively, are formed in the sandwiching bodies 31 and 31 so that the buffering rope members 40 and 40 are stored in the grooves 35 and 35, respectively. The U-bolts 32 are inserted into the through holes 36 and 36 of the clamping bodies 31 and 31 and tightened with the nuts 33 to hold the buffering rope members 40 and 40. The clamping force (crimping force) of the buffering rope members 40, 40 can be adjusted by the tightening force of the U bolt 32 and the nut 33. Further, at least one of the cushioning rope members 40 and 40 protrudes an extra length that can slide. The U bolt 32 and the nut 33 hold the end portions 40T, 40T, etc. of the buffering rope material 40 with a predetermined frictional force, and a force to tilt the support column 3 by falling rocks is applied. When acted, the sliding rope members 40, 40 are allowed to slide. By providing the shock absorber 30 in this way, when the tension applied to the shock absorbing rope member 40 from the wire net 21 becomes equal to or higher than a predetermined value, the shock absorbing rope members 40 and 40 frictionally slide with respect to the shock absorber 30. Impact energy can be absorbed effectively.

  As shown in FIG. 7 and the like, one buffer rope member 40 is folded back into a substantially U shape to form a buffer folded portion 41, and the rope members 40, 40 at the ends of the buffer folded portion 41 are A buffer folded loop 42 is formed by gripping with the buffer 30. Further, a metal ring is swaged and fixed to the end portions 40T and 40T of the buffering rope member 40 so that the end portions 40T and 40T are integrated and a stopper 43 is formed.

  Then, the mesh body folded portion 24 is inserted into the buffer folded ring portion 42, and thereby the buffer folded ring portion 42 is locked to the buffer 30. Moreover, the return | turnback ring | wheel part 42 for buffers and the upper horizontal rope material 11 are connected so that attachment or detachment is possible by the shackle 45 which is attachment / detachment connection means.

  As shown in FIG. 8 and the like, the shackle 45 is configured to open and close both ends of the U-shaped main body 46 by inserting bolts 47 with nuts into both ends. The ring portion 42 and the upper horizontal rope member 11 are inserted and connected to each other. And the part which protruded on the opposite side of the said buffering | returning ring | wheel part 42 and the buffer 30 becomes the extra length part 44 of the rope material 40 for buffering.

  Further, at the lower edge of the wire net 21, the mesh body folded portion 24 and the lower horizontal rope member 12 are connected by a shackle 45. In addition, by using the shackle 45, the wire net 21 can be moved in the length direction of the horizontal rope members 11 and 12 and a vertical rope member to be described later.

  In this example, a buffer structure 48 is configured by the buffer rope material 40 and the buffer 30.

  As shown in FIG. 7, in addition to the upper horizontal rope member 11, the lower horizontal rope member 12 and the lower net body folded portion 24 on the wire net 21 are connected, or a later-described vertical rope member and wire net are connected. In this case, the lower horizontal rope member 12 and the vertical rope member are connected members. In either case, the mesh body crossing portion 23 may be inserted into the buffer folding ring portion 42 and locked.

  Next, as shown in FIG. 4 and the like, in the support column 3, pin bolts 51, 51 that are connected members are provided horizontally on the upper and lower locking portions 13, 14, and the pin bolts 51, 51 are connected between the upper and lower pin bolts 51, 51. A vertical rope member 52 as a connecting member is stretched. In addition, the ring part 52W is formed in the edge part of the vertical rope material 52, and the pin volt | bolt 51 is penetrated to this ring part 52W. Further, although two pieces of the upper and lower horizontal rope members 11 and 12 and two pieces of the vertical and horizontal rope members 52, 11 and 12 are used, one piece may be used.

  In this example, the wire net 21 has a left-right width substantially equal to the distance between the intermediate support column 3 and the end support column 3, and has the mesh body turn-back portions 24 on both left and right edges.

  Then, as shown in FIGS. 9 to 12, in the support column 3 at the end portion, a single rope material 40 is wound around the vertical rope material 52 from the top to the bottom, and the mesh body folded up and down. The buffer rope material 40 is inserted into the portion 24 in order from the top to the bottom and locked, the buffer rope material 40 is passed through the mesh of the wire net 21, and the buffer rope material 40 is connected to the mesh body folding portion 24. The locked portion becomes the mesh body locking portion 61, and the buffer rope material 40 is inserted into all the mesh body folded portions 24 located at the edge of the wire net 21, and as shown in FIG. The upper and lower end portions 40T, 40T of 40 are locked to the upper and lower pin bolts 51 and folded back in the reverse direction, and the folded connected material locking portion 62 is locked to the pin bolt 51 and turned to the opposite end portion 40T. , 40T is polymerized. Parts 40T, gripping by the bumper 30 to 40T. Then, the end portions 40T and 40T projecting up and down from the shock absorber 30 become the surplus length portion 44.

  Then, the vertical rope member 52 becomes a core member, and the buffering rope member 40 can be stretched with a predetermined tension.

  Further, as shown in FIGS. 14 and 15, in the intermediate strut 3, the net folding portions 24 and 24 are positioned opposite to the left and right sides of the vertical rope member 52, and one buffer rope member 40 is attached. While wrapping around the vertical rope member 52 from the top to the bottom, the buffer rope member 40 is placed on the mesh folding portion 24 arranged in the vertical direction in order from the top to the bottom, and the left and right one and the other mesh members for each step. The portion of the buffer rope 40 that is inserted into and locked into the folded portion 24 and locked to the mesh folded portion 24 becomes the mesh locked portion 61, and the left and right mesh locked portions 61, 61 at each stage. Are placed at substantially the same height, and the buffer rope material 40 is inserted into all the mesh folding parts 24 located on the left and right edges of the both sides of the support column 3, and the upper and lower ends of the buffer rope material 40 are Locked to the pin bolt 51 and folded back upside down, the folded connected material Stop portion 62 is engaged with the pin bolt 51, the end and the opposite portion 40T, polymerizing 40T, end 40T of the overlapping portion, gripping the 40T by the bumper 30. Then, the end portions 40T and 40T protruding upward and downward from the shock absorber 30 become the extra length portions 44 and 44.

  Further, on the outer side in the left-right direction of the support column 3 of the terminal, a retaining rope material connecting portion 72 is fixed by an anchor 71 on the upper surface of the concrete foundation 2, and the terminal support column 3 corresponding to the retaining rope material connecting portion 72 is fixed. The upper part is connected by a rope member 73.

  Furthermore, anchors 74 are embedded and fixed on the slopes which are the ground on the front side (mountain side) of all the columns 3, and the anchors 74 and the upper portions of the columns 3 are connected by a reed rope material 75. In this case, a round bar 76 as a locking part is inserted into the upper part of the column 3, the end of the round bar 76 protrudes to the left and right of the column 3, and the holding rope is locked to both ends of the round bar 76. The material 75 is wound around the support 3, and the overlapped portion 75 </ b> K of the wound storage rope 75 is connected to the front of the support 3 by a wire clip 77 serving as a binding means, thereby connecting the storage rope 75 to the upper part of the support 3. .

  As shown in FIG. 19, the wire clip 77 includes a U bolt 78 and a main body 79 through which the U bolt 78 is inserted, and the overlapping portion 75 </ b> K is sandwiched between the U bolt 78 and the main body 79. It is what you wear.

  Next, the effect | action is demonstrated about the said structure. In the upper horizontal rope member 11, when the mesh body 4 is subjected to an impact force by falling rocks, collapsed earth or avalanche, tension is generated in the wire net 21, and a force for pulling the mesh folding portion 24 downward is applied. The shock absorber 30 to which the body folding portion 24 is engaged frictionally slides with respect to the extra length portion 44 and absorbs the impact force. Moreover, the amount of bending of the wire net 21 is increased by the movement of the shock absorber 30, the impact force absorption effect is improved, and the force applied to the column 3 and the like can be reduced.

  Furthermore, after the extra length portion 44 is frictionally slid and the stopper 43 is locked to the shock absorber 30, the impact force can be absorbed by the tension of the buffering rope member 40 without frictional sliding.

  Further, in the support column 3 at the end, when the mesh body 4 receives an impact force due to falling rocks, collapsed earth or avalanche, a tension is generated in the wire net 21 and a force for pulling the mesh folding portion 24 toward the center side is applied. As a result, a tension is applied to the buffering rope member 40 to which the mesh body turn-back portion 24 is locked, and the tension is applied to the buffering rope member 40 that forms a loop as a whole, so that the extra length portions 44 and 44 at the end portions. Frictionally slides against the shock absorber 30 and absorbs the impact force. Further, since the buffering rope material 40 having a loop shape as a whole spreads, the amount of bending of the wire net 21 is increased, the impact absorption effect is improved, and the force applied to the column 3 and the like can be reduced.

  Similarly, in the intermediate support column 3, when the mesh body 4 receives an impact force due to falling rocks, collapsed earth or avalanche, etc., tension is generated in the wire nets 21, 21 on both sides of the support column 3, and the mesh body folding portion. As a result, a force is applied to separate the support 24 from the support column 3, whereby a tension is applied to the buffering rope member 40 to which the mesh body folding portion 24 is locked, and a tension is applied to the buffering rope member 40 that forms a loop as a whole. As a result, the surplus length portions 44 and 44 at the end portions slide frictionally with respect to the shock absorber 30 and absorb the impact force. Further, the expansion of the looping rope material 40 that forms a loop as a whole increases the amount of bending of the wire nets 21 and 21 on both sides, improves the impact force absorption effect, and reduces the force applied to the column 3 and the like. . In the case of the intermediate strut 3, when one of the left and right wire nets 21 receives an impact force, the impact force is transmitted to the other wire net 21 by the buffering rope material 40, and the impact force can be dispersed.

As described above, in this embodiment, the support columns 3, 3... Standing upright, the mesh body 4 provided between the support columns 3, 3..., And the shock absorber 30 holding the buffer rope material 40. used anti Mamorusaku having a front net body 4, and a mesh member cross section 23 which mesh member folded portion 24 and the oblique wires 22 folded back a wire serving as oblique wire 22 to the edge intersects, buffer By using the rope material 40 and the shock absorber 30, the upper horizontal rope material 11 or the vertical rope material, which is a connected material provided in the protective fence 1 other than the mesh body 4 , the mesh body folding portion 24 or the mesh body crossing portion 23. linked to 52, since the shock-absorbing rope materials 40 to bumper 30 by the movement of the mesh member 4 absorbs an impact force applied to the mesh member 4 slides, the impact energy is applied due rockfall the netting 4 The shock absorber 30 is a rope material for cushioning by the mesh body folding portion 24 or the mesh body crossing portion 23. 0 frictionally slid to absorb impact energy to, moreover, by the bumper 30 moves can be made larger amount of deflection of the netting 4, it is possible to enhance the absorbing effect of the impact energy.

  As described above, in the present embodiment, the end portion of the buffer return portion 41 where the buffer rope material 40 is folded back is gripped by the buffer 30 to form the buffer return ring portion 42, and this buffer return ring portion. 42 is connected to the upper horizontal rope member 11 which is a connected material, and the mesh body folded portion 24 or the mesh body intersecting portion 23 is locked to the buffer folded ring portion 42, so that impact energy is applied to the mesh body 4 by falling rocks or the like. Then, the shock absorber 30 frictionally slides against the shock-absorbing rope material 40 by the mesh body folding portion 24 or the mesh body crossing portion 23 that is locked to the shock absorber 30 and absorbs impact energy. By moving, the amount of bending of the net 4 can be increased, and the impact energy absorption effect can be improved.

  Further, in this embodiment, since the mesh folding part 24 or the mesh crossing part 23 is inserted and locked in the buffer folding ring part 42, the mesh folding part 24 or the mesh folding part 24 or By inserting the mesh body crossing part 23, it can be locked to the shock absorber 30, and a shock absorber with a simple structure can be obtained.

In this way, in this embodiment, the buffer rope material 40 is inserted into the meshes of the plurality of mesh folding portions 24 or the meshes of the mesh crossing portions 23 , and both end portions 40T, 40T of the buffer rope material 40 are inserted. The folded portions are locked to pin bolts 51 and 51 which are connected portions of the protective fence 1, the opposite end portions 40 </ b> T and 40 </ b> T are overlapped, and the overlapped portion is gripped by the buffer 30. Then, when impact energy is applied to the mesh body 4 by falling rocks or the like, tension is applied to the buffer rope material 40 inserted through the mesh of the plurality of mesh folding portions 24 or the mesh of the mesh body intersecting portions 23, thereby both end portions 40T. , 40T end portions 40T, 40T of the shock absorbing rope member 40 are frictionally slid against the shock absorber 30 holding the overlapped portion of 40T to absorb the impact energy. Makes it possible to increase the amount of deflection of the net assembly 4, it is possible to improve the effect of absorbing impact energy.

Furthermore, as an effect on the embodiment, because locked buffer rope material 40 into a plurality of mesh member in fold-back portion 24 of the edge of the wire net 21, the wire net 21 by a single buffer for brazing material 40 at the same time The edge can be connected to the column 3.

  FIG. 20 shows 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. As shown in the figure, one buffer rope member 40 is folded in a substantially U shape to form a buffer folded portion 41, and the rope members 40, 40 at the ends of the buffer folded portion 41 are A buffer folding loop 42 is formed by gripping with the buffer 30. Further, stoppers 43 and 43 are formed by caulking and fixing metal rings to the end portions 40T and 40T of the buffer rope material 40, respectively, and an extra length portion 44 is provided at one end portion 40T, The stopper 43 of the end 40T is disposed at a position close to the shock absorber 30.

  In addition to the upper horizontal rope material 11, the lower horizontal rope material 12 and the lower net body folded part 24 of the wire net 21 are connected, or the vertical rope material 52 and the net body on one side edge of the wire net 21. The folded portion 24 can be connected, and in this case, the lower horizontal rope member 12 and the vertical rope member are connected members. Further, the mesh body crossing portion 23 may be inserted into the buffer folding ring portion 42 and locked.

  Then, when the wire net 21 receives an impact force and a force greater than a predetermined value is applied to the shock absorber 30 by the mesh body folding portion 24, the one extra length portion 44 frictionally slides against the shock absorber 30, and the impact force The wire net 21 is separated from the upper horizontal rope member 11 due to the movement of the shock absorber 30, and the deformation amount of the net body 4 is increased, which can also alleviate the impact force.

  As described above, in this embodiment, the same operations and effects as those of the first embodiment are obtained.

  Further, in this example, one surplus length portion 44 slides with respect to the shock absorber 30, and at the same time, one surplus length portion 44 frictionally slides on the main body 46 of the shackle 45. A part of the impact force can also be absorbed by the frictional sliding.

  FIG. 21 shows a third 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. As shown in the figure, in this example, in the first embodiment, an opening / closing hook portion 81 as a locking portion is provided in the shock absorber 30, and the mesh body folding portion 24 is inserted and locked in the opening / closing hook portion 81. . In addition, as the opening / closing hook part 81, the U volt | bolt etc. which can be attached or detached to the buffer 30 are illustrated.

  In addition to the upper horizontal rope material 11, the lower horizontal rope material 12 and the lower net body folded part 24 of the wire net 21 are connected, or the vertical rope material 52 and the net body on one side edge of the wire net 21. The folded portion 24 can be connected, and in this case, the lower horizontal rope member 12 and the vertical rope member are connected members. Further, the mesh body crossing portion 23 may be inserted into the opening / closing hook portion 81 and locked. Furthermore, the opening / closing hook portion 81 may be provided in the shock absorber 30 of the second embodiment, and the mesh body folding portion 24 or the mesh body intersection portion 23 may be locked to the opening / closing hook portion 81.

  Then, when the wire net 21 receives an impact force and a force greater than a predetermined value is applied to the shock absorber 30 by the mesh body folding portion 24, the surplus length portions 44 and 44 frictionally slide against the shock absorber 30, and the impact force The wire net 21 is separated from the upper horizontal rope member 11 due to the movement of the shock absorber 30, and the deformation amount of the wire net 21 is increased, thereby also reducing the impact force.

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

  In this way, in this embodiment, since the opening / closing hook portion 81 as the locking portion for locking the mesh body folding portion 24 or the mesh body crossing portion 23 is provided in the shock absorber 30, the opening / closing hook portion 81 makes the cushion folding back. The mesh body folding portion 24 or the mesh body intersection 23 can be locked to the shock absorber 30 on the ring portion 42, and a shock absorber with a simple structure can be obtained.

FIG. 22 shows a fourth embodiment of the present invention, in which the same reference numerals are given to the same portions as the above-mentioned embodiments, and detailed description thereof is omitted. As shown in the figure, in this example, one wherein the cushioning is polymerized in the middle of the rope member 40 of forming a buffering ring portion 63, returns Ri said network element folding in the buffering limbus 63 24 In addition, the buffer ring portion 63 and the upper horizontal rope member 11 are connected by the shackle 45.

  In addition to the upper horizontal rope material 11, the lower horizontal rope material 12 and the lower net body folded part 24 of the wire net 21 are connected, or the vertical rope material 52 and the net body on one side edge of the wire net 21. In this case, the lower horizontal rope member 12 and the vertical rope member 52 are connected members.

  When the wire net 21 receives an impact force and a force of a predetermined level or more is applied to the buffering ring portion 63 by the mesh folding portion 24, the surplus length portions 44, 44 in the opposite direction are frictionally slid against the buffer 30. In addition, the impact force can be absorbed, and the buffer ring portion 63 is expanded by the frictional sliding of the extra length portions 44, 44, so that the wire net 21 is separated from the upper horizontal rope member 11, and the wire net 21 The amount of deformation increases, and this can also mitigate the impact force.

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

  As described above, in this embodiment, the buffering rope member 40 is superposed to form the buffering ring portion 63 that is a ring portion, and the overlapping portion of the buffering rope member 40 is gripped by the buffering tool 30, Since the upper horizontal rope member 11 and the buffer folded portion 24 or the mesh intersection 23 are connected by the portion 63, when impact energy is applied to the mesh member 4 by falling rocks, the upper horizontal rope member 11 and the mesh are connected. The shock-absorbing ring portion 63 connected to the body folding portion 24 or the mesh body crossing portion 23 receives a force in the opening direction, whereby the shock absorber 30 frictionally slides against the shock-absorbing rope member 40 to absorb impact energy. In addition, when the buffer ring 63 is opened, the amount of bending of the mesh body 4 can be increased, and the impact energy absorption effect can be improved.

  In this way, in this embodiment, the buffer folding portion 24 or the mesh body crossing portion 23 is inserted into the buffering wheel portion 63 that is a ring portion, and therefore the mesh body folding portion 24 or the mesh body intersection is inserted into the buffering wheel portion 63. By inserting the portion 23, it can be connected to the buffering wheel portion 63, and a shock absorber with a simple structure can be obtained.

  In addition, as an effect of the embodiment, since the upper horizontal rope member 11 as the member to be connected is inserted into the buffer ring portion 63, the attachment of the buffer structure 48 to the member to be coupled becomes easy.

  FIG. 23 shows a fifth 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. As shown in the figure, in the intermediate strut 3, the wire net 21 is continuous from side to side, and one buffering rope member 40 is provided at the mesh intersection 23 located in a multi-stage at the rear of the intermediate strut 3. Lock. The buffer rope material 40 is inserted and locked in order from the top to the bottom at the mesh intersection 23 where the buffer rope material 40 is lined up and down. Specifically, the buffer rope material 40 is Passing from one side of the mesh to one side in the front-rear direction, passing from the left and right side mesh to the other side in the front-rear side, and locking to the mesh crossing portion 23, and the buffering rope material 40 is locked to the mesh crossing portion 23 This portion becomes the mesh body locking portion 61, which is similarly locked to the lower-layer mesh intersection portion 23 adjacent to the upper and lower sides, and this is repeated to tie the buffer rope material 40 to all the mesh body intersection portions 23. The upper and lower ends of the buffering rope material 40 are locked to the upper and lower pin bolts 51 and folded back in the reverse direction. The folded connected material locking portion 62 is locked to the pin bolt 51 and is turned in the reverse direction. The end portions 40T and 40T made into a superposition are superposed, and the end portions 40T and 40T of the superposed portions are superposed on the buffer 3 It is gripped by.

  The end portions 40T and 40T projecting up and down from the shock absorber 30 become the extra length portions 44 and 44. In this example, the shock absorber structure 48 is constituted by the buffer rope material 40 and the pair of shock absorbers 30 and 30. is doing.

  In FIG. 23, the buffering rope member 40 is passed forward from the left side mesh in the drawing from the rear side, and passed through the right side mesh from the front side to the rear side to be locked to the mesh body intersection 23. .

  When the wire net 21 receives an impact force on the left and right sides of the intermediate support column 3 and a force greater than a predetermined value is applied to the buffering wheel portion 63 by the mesh body turn-back portion 24, the extra length portions 44 and 44 in the opposite direction are formed. The shock absorber 30 can be frictionally slid to absorb the impact force, and the buffer rope material 40 having a loop shape as a whole can be spread by the frictional sliding of the extra length portions 44 and 44. The net 21 moves to the direction receiving the impact force, and the deformation amount of the wire net 21 is increased, whereby the impact force can be reduced.

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

In this way, in this embodiment, the buffering rope member 40 is inserted into the meshes of the plurality of mesh folding parts 24 or the meshes of the plurality of meshing intersections 23 , and both ends of the buffering rope member 40 are reversed. Since these folded portions are locked to pin bolts 51 and 51 which are connected portions of the protective fence 1, the opposite end portions 40T and 40T are superposed, and the superposed portions are gripped by the buffer 30, so that When impact energy is applied to the body 4 due to falling rocks or the like, tension is applied to the buffering rope material 40 inserted through the meshes of the plurality of mesh folding portions 24 or the meshes of the mesh intersections 23, whereby the ends 40T, 40T The end portions 40T, 40T of the buffering rope material 40 frictionally slide against the buffer 30 holding the overlapping portion to absorb impact energy, and the mesh body 4 is absorbed by the frictional sliding of the buffering rope material 40. Can take a large amount of deflection, it is possible to enhance the absorbing effect of the impact energy.

FIG. 24 shows a sixth embodiment of the present invention, in which the same parts as those in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in the figure, the vertical rope member 52 is vertically provided at the rear portion of the support column 3 of the terminal, and while the single rope member 40 is wound around the vertical rope member 52 from the top to the bottom, The buffer rope material 40 is inserted and locked in order from the top to the bottom on the mesh body folded portion 24, and the buffer rope material 40 is passed through the mesh of the wire net 21, and the buffer rope material 40 is The portion locked to the mesh folding part 24 becomes the mesh locking part 61, and the buffering rope material 40 is inserted into the meshes of all the mesh folding parts 24 located at the edge of the wire net 21, and the cushioning rope material The end portions of 40 are upper and lower extra length portions 44 and 44 extending up and down of the column 3.

  Further, short auxiliary rope members 82 and 82 are connected to the upper and lower pin bolts 51 and 51, respectively, and this auxiliary rope member 82 is held by one groove 35 of the shock absorber 30, and the end of the auxiliary rope member 82 is connected. A stopper 83 that locks the shock absorber 30 is provided at the portion. Then, the extra length portion 44 is gripped by the other groove 35 of the shock absorber 30, and the buffer rope material 40 is stretched on the rear portion of the column 3.

  In place of the vertical rope member 52, the buffer rope member 40 is locked to the upper and lower mesh folding parts 24 or the mesh member crossing portion 23 while the buffer rope member 40 is wound around the upper and lower horizontal rope members 11 and 12. You may make it do.

  Then, when the wire net 21 receives an impact force and a force of a predetermined level or more is applied to the buffering rope member 40 by the mesh body folding portion 24, at least one of the upper and lower surplus length portions 44, 44 is applied to the buffering tools 30, 30. And the impact force can be absorbed, and the shock absorbing rope member 40 between the shock absorbers 30 and 30 is extended by the frictional sliding of the extra length portions 44 and 44, whereby the wire net 21 is longitudinally moved. The amount of deformation of the wire net 21 is increased away from the rope material 52, and the impact force can be reduced also by this.

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

In this way, in this embodiment, the buffer rope material 40 is inserted into the meshes of the plurality of mesh folding portions 24 or the meshes of the mesh crossing portions 23 , and both end portions 40T, 40T of the buffer rope material 40 are inserted. Corresponding to the above, shock absorbers 30, 30 are provided on pin bolts 51, 51, which are connected members of the guard fence 1, respectively, and both end portions 40T, 40T of the shock absorbing rope member 40 are respectively held by the shock absorbers 30, 30 on both sides. Then, when impact energy is applied to the mesh body 4 by falling rocks or the like, tension is applied to the buffer rope material 40 inserted through the mesh of the plurality of mesh folding portions 24 or the mesh of the mesh body intersecting portions 23, thereby both end portions 40T. , 40T, and at least one of the end portions 40T, 40T of the buffer rope members 40, 40 frictionally slides against the shock absorbers 30, 30 to grip the shock energy, and absorbs the impact energy. The frictional sliding of use rope materials 40 can be made larger amount of deflection of the netting 4, it is possible to enhance the absorbing effect of the impact energy.

  Moreover, since the two buffering tools 30 and 30 were hold | gripped in the one buffering rope material 40 as an effect on an Example, a buffering effect improves.

  FIG. 25 shows a seventh 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. As shown in the figure, in this example, upper and lower lateral rope members 11 and 12 and two buffer rope members 40 and 40 are used as a pair of rope members that are spaced apart from each other. The connecting ring portion 84 is integrally provided at one end of the connecting portion 40, and the end portion of the buffering rope member 40 is inserted into the shackle 45 with the tip end of the connecting ring portion 84 directed toward the center. The long portion 44 is directed toward the center side, whereby the folded portion 40K of the buffering rope material 40 is locked to the shackle 45. Then, two sets of the buffer rope material 40 and the shackle 45 are used, one shackle 45 is connected to the upper horizontal rope material 11, the other shackle 45 is connected to the lower horizontal rope material 12, and one and the other buffer are used. The extra length portions 44 and 44 of the rope members 40 and 40 are polymerized in the middle, and the rope members 40 and 40 are gripped by the cushioning tool 30 at this overlapping portion.

  A buffer structure 48 is constituted by the pair of buffering rope members 40, 40, the pair of buffering tools 30, 30 and the pair of ring bodies 84, 84.

  Note that the rope members 52 and 52 provided on the support columns 3 and 3 may be used as the rope members that form a pair at intervals, and a set of shackles 45 and 45 is arranged in multiple stages on both the rope members 52 and 52. In this case, a pair of cushioning rope members 40, 40 are provided between the upper and lower horizontal rope members 11, 12 as a horizontal rope member between the support columns 3, 3.

  When the wire net 21 receives an impact force and a force for pulling the ring body 84 of the buffering rope member 40 toward the center is applied by the mesh folding portion 24, at least one of the upper and lower surplus length portions 44, 44 is moved outward. By moving, it can frictionally slide against the shock absorbers 30 and 30 to absorb the impact force, and the shock absorbing rope material between the shock absorbers 30 and 30 by the frictional sliding of the extra length portions 44 and 44. By extending 40, the wire net 21 is separated from the upper and lower horizontal rope members 11 and 12, and the deformation amount of the wire net 21 is increased, thereby also reducing the impact force.

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

As described above, in this embodiment, the connected material is a pair of connecting rope members provided on the protective fence 1, and the paired connecting rope members are spaced apart from each other by the lower horizontal rope members 11 and 12. The upper and lower horizontal rope members 11 and 12 are paired as one and the other connecting rope member, and the folded portion 40K of the buffer rope member 40 whose tip side is folded is movable. The mesh body folding portion 24 or the mesh body crossing portion 23 is coupled to the coupling ring portion 84 on the distal end side, and an extra length portion 44 is provided on the other side of the buffering rope member 40, and one and the other buffer Since the surplus length portions 44 and 44 of the rope members 40 and 40 are superposed and the superposed portions are gripped by the shock absorber 30, when impact energy is applied to the net by falling rocks or the like, a plurality of net folding parts 24 or nets The tip of the buffer rope material 40 connecting the intersections 23 One side-direction tension is applied to the connecting ring portion 84 on the side, thereby generating a tension that pulls the surplus length portion 44 in the direction opposite to the one side, and the surplus length portion 44 frictionally slides against the shock absorber 30. In addition, the impact energy can be absorbed, and the amount of flexure of the mesh body 4 can be increased by the frictional sliding of the buffering rope member 40, so that the impact energy absorption effect can be improved.

  Further, as an effect of the embodiment, since the connecting ring portion 84 is provided on the distal end side of the buffering rope member 40, the connection with the mesh body folding portion 24 or the mesh body intersection portion 23 can be easily performed by insertion. .

  FIG. 26 shows an eighth 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. As shown in the figure, the wire net 21 of this example is provided with cross connecting wires 91 and 92 at the crossing portion 23 of the oblique wires 22 and 22, and both ends of one cross connecting wire 91 are connected to each other. Fixing portions 91K and 91K wound in a coil shape are formed on both sides of the crossing portion 23 of one diagonal wire 22 and these fixing portions 91K and 91K are connected by a central portion 91C of the cross connecting wire 91. Fixing portions 92K and 92K are formed by winding both ends of the other cross-connecting wire 92 in a coil shape on both sides sandwiching the intersection of the other oblique wire 22, and these fixing portions 92K and 92K are the central portions of the cross-connecting wire 92. If the force which is connected by 92C and is going to move an intersection location is added, these intersection connection wire materials 91 and 92 will oppose.

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

  In addition, various types of connection structures can be used for the connecting portion 23 of the wire net 21 in this way.

  In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible. For example, the net body can have various shapes. Moreover, although the cross-section support | pillar was illustrated in the Example, square cross section may be sufficient. Further, the detachable connecting means for movably connecting the net body to the upper and lower edge rope members is not limited to the shackle, and various devices can be used as long as they have a ring through which the rope member or the like is inserted. Further, in the examples, the rope material is made of steel, but other than that, synthetic resin or the like can be used. Further, the number of intermediate struts may be two or more. Also in the embodiment in which the stopper is not shown, the stopper can be provided at the end of the buffer rope material. Furthermore, any rope material used in the present invention has flexibility. In the embodiment, the upper and lower horizontal rope members and the vertical rope member are shown as examples of the members to be connected. However, the upper and lower rope members are made of a hard material that connects the upper and lower sides of the column, and the upper and lower rope members. Alternatively, a connected material may be used, or a vertical rod made of a hard material provided vertically on the support may be used instead of the vertical rope material. Further, an auxiliary net having a smaller mesh and a thinner wire may be superimposed on the wire net.

1 Guard fence 2 Concrete foundation (installation location)
3 Prop 4 Net 11 Upper side rope material (connected material)
12 Lower horizontal rope material (connected material)
21 Wire net 22 Diagonal wire 23 Net body intersection 24 Net body folding part 30 Shock absorber 40 Buffering rope material 40T End 41 Buffer folding part 42 Buffer folding ring part 43 Stopper 45 Shackle (detachable connecting means)
51 pin bolt (connected material)
52 Vertical rope material (connected material)
63 Ring for cushioning (ring)
81 Opening / closing hook part (locking part)

Claims (11)

A post erected at an interval, and a network element provided between the struts used in the proof Mamorusaku that includes a gripping buffer rope material bumper,
The mesh body has a mesh body folded portion obtained by folding a wire material at an edge portion and a mesh body intersecting portion where the wire material intersects, and the mesh body folded portion is formed by using the buffering rope material and the buffer. or netting intersection, and connected to the connecting member which is provided on the protection barrier outside the network element, the network element before SL network member the cushioning rope materials to the bumper by the movement of slides a network-body dampener you absorb the impact force applied to,
An end portion of the buffer folded portion that is folded back from the buffer rope material is gripped by the cushioning device to form a buffer folded ring portion, and this buffer folded ring portion is connected to the connected material, the network element folded portion or the mesh member for a shock absorber of anti Mamorusaku you characterized in that locked the network element crossing portion to the folded limbus. Wherein said network element folded portion or fences of mesh member for cushioning device according to claim 1, wherein the locked by inserting the network element crossing portion in a buffer flaps limbus. Said bumper to said network element folded portion or said network element intersection fences of the mesh member for a shock absorber according to claim 1, characterized in that a locking portion for locking the. It is used for a protective fence provided with struts erected at intervals, a net provided between the struts, and a shock absorber gripping a buffer rope material,
The mesh body has a mesh body folded portion obtained by folding a wire material at an edge portion and a mesh body intersecting portion where the wire material intersects, and the mesh body folded portion is formed by using the buffering rope material and the buffer. Alternatively, the mesh body intersection is connected to a coupled material provided on the guard fence other than the mesh body, and the buffer rope material slides relative to the shock absorber due to the movement of the mesh body to the mesh body. A shock absorber for a net that absorbs the applied impact force,
The buffer rope material is polymerized to form a ring portion, the overlapped portion of the buffer rope material is gripped by the buffer, and the connected material and the buffer folded portion or net crossing are held by the ring portion. mesh member buffer device explosion Mamorusaku it characterized in that connecting the parts. 5. The shock absorber for a fence body according to claim 4 , wherein the buffer folded portion or the mesh body intersection is inserted into the ring portion. It is used for a protective fence provided with struts erected at intervals, a net provided between the struts, and a shock absorber gripping a buffer rope material,
The mesh body has a mesh body folded portion obtained by folding a wire material at an edge portion and a mesh body intersecting portion where the wire material intersects, and the mesh body folded portion is formed by using the buffering rope material and the buffer. Alternatively, the mesh body intersection is connected to a coupled material provided on the guard fence other than the mesh body, and the buffer rope material slides relative to the shock absorber due to the movement of the mesh body to the mesh body. A shock absorber for a net that absorbs the applied impact force,
The cushioning rope material is inserted into the meshes of the plurality of mesh folding parts or the meshes of the mesh crossing parts, both ends of the cushioning rope material are folded in the opposite direction, and these folded parts are covered with the protective fence. engaged to the connecting portion, and polymerizing the end thereof opposite, network-body cushioning device fences, characterized in that the overlapping portion is gripped by the bumper. It is used for a protective fence provided with struts erected at intervals, a net provided between the struts, and a shock absorber gripping a buffer rope material,
The mesh body has a mesh body folded portion obtained by folding a wire material at an edge portion and a mesh body intersecting portion where the wire material intersects, and the mesh body folded portion is formed by using the buffering rope material and the buffer. Alternatively, the mesh body intersection is connected to a coupled material provided on the guard fence other than the mesh body, and the buffer rope material slides relative to the shock absorber due to the movement of the mesh body to the mesh body. A shock absorber for a net that absorbs the applied impact force,
The buffer rope material is inserted into the meshes of the plurality of mesh folding parts or the meshes of the mesh crossing parts , and the buffer material is connected to the connecting material of the protective fence corresponding to both ends of the buffer rope material. A shock-absorbing device for a protection fence net, wherein the shock-absorbing rope members are respectively gripped at both ends of the shock-absorbing rope material by the shock-absorbing tools on both sides. It is used for a protective fence provided with struts erected at intervals, a net provided between the struts, and a shock absorber gripping a buffer rope material,
The mesh body has a mesh body folded portion obtained by folding a wire material at an edge portion and a mesh body intersecting portion where the wire material intersects, and the mesh body folded portion is formed by using the buffering rope material and the buffer. Alternatively, the mesh body intersection is connected to a coupled material provided on the guard fence other than the mesh body, and the buffer rope material slides relative to the shock absorber due to the movement of the mesh body to the mesh body. A shock absorber for a net that absorbs the applied impact force,
The connecting material is a pair of connecting rope members provided on the protective fence, the connecting rope members forming the pair are arranged at intervals, and one and the other connecting rope members forming the pair are connected to each other. , The folded portion of the buffering rope material folded back at the distal end side is movably locked, the mesh folded portion or the mesh intersecting portion is connected to the distal end side, and the other side of the cushioning rope material is connected the extra length portion is provided, the one and the other of the extra length portion of the shock-absorbing rope materials to the polymer, mesh member buffer device explosion Mamorusaku you, characterized in that the overlapping portion is gripped by the bumper. The safety barrier of the mesh member for a shock absorber according to claim 1 to 5, wherein the the connected member is a linking rope material provided to the safety barrier. The shock absorber for a fence body according to claim 8 or 9, wherein the connecting rope material is a horizontal rope material provided between the columns. Protective fence mesh member for absorbing device according to any one of claims 1 to 10, characterized in that a stopper for engaging in the bumper to the end of the buffer rope material.

Images