JP2014020493A - Fastening fixture of rope end fitting and fastening structure of rope end fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastening fixture of a rope end fitting and a fastening structure of a rope end fitting which prevent fracture of a wire rope and breakage and deformation of the rope end fitting and a strut by sliding and playing-out the wire rope together with the rope fitting when a load of a predetermined value or more is applied, and improve the safety by increasing an allowable load of a rock fall protective fence or the like.SOLUTION: Provided is a fastening fixture 1 of a rope end fitting for fastening an end part of a wire rope 17 to a strut 18 includes: a fastening plate 2 which can be brought into close contact with the strut 18; insertion holes 3 perforated on the fastening plate 2; hollow fixation cylinders 4 which are communicated with the insertion holes 3 and are fastened to the fixation plate 2; hollow guide cylinders 5 which can be inserted into the hollow fixation cylinders 4; and stopcock materials 6 which close opening end parts 5a of the hollow guide cylinders 5 of a direction opposite to the insertion direction to the hollow fixation cylinders 4.

Description

  TECHNICAL FIELD The present invention relates to a cable end fitting fixing device and a cable end fitting fixing structure for fixing a wire rope and a support in a rockfall protection fence or the like, particularly when a load of a predetermined value or more is applied to the wire rope. By sliding the wire rope with the cable end bracket and feeding it out, the wire rope breakage, the damage to the cable end bracket and the support column, and deformation are prevented, and the safety load is increased by increasing the allowable load of the falling rock protection fence etc. Is.

  A rockfall protection fence that prevents falling rocks from slopes on roads, parking lots, and various buildings is composed of a plurality of wire ropes working within the elastic region and struts with appropriate rigidity and toughness. Energy is absorbed by pulling the wire rope and deforming the struts.

  Conventional cable end fittings fix the end of the wire rope to the support. For example, loosen the twist of the end of the wire rope and insert a wedge lump between the strands so that the wire rope cannot be pulled out. In addition, a cable end fitting that is fixed to a column via a bolt shaft that is screwed to one end is generally known. That is, the cable end bracket itself is fixed to the column.

  In addition, the tip of the bolt shaft with the fastening double nut screwed to the base end portion is formed in the annular portion or the hook portion, and the end portion of the wire rope is attached to the annular portion or the hook portion of the bolt shaft fixed to the column. There is also provided a cable end metal fitting to which a winding grip is applied (Patent Document 1). Then, as a processing means for the end portion of the wire rope, a threaded portion is screwed on the outer side of the large diameter of the conical tube, and a concave groove portion that can be engaged with the wire rope matching the inner side of the conical tube is opposed to the vertical direction. There is also provided means comprising a wedge and an edged nut that can be screwed onto the threaded portion of the conical tube (Patent Document 2). Further, there is also provided a cable end fitting for connecting, via a pinching nut, a bolt shaft in which a head portion passing through a winding grip attached to an end portion of a wire rope is fixed to a support column (Patent Document 3).

Utility model registration No. 3029289 JP-A-9-31877 Utility model registration No.3044455

  However, since all the conventional rope end fittings are configured to fix the ends of the wire rope and the rope end fittings themselves to the column, the load of fallen rocks directly acts on the wire rope when a fallen rock occurs. If a load exceeding the allowable load of the wire rope or cable end bracket is applied, the wire rope breaks, the cable end bracket or support column breaks or deforms, etc., and fulfills its mission as a rockfall protection fence I can't. That is, in the conventional rope end fitting, when the load more than the allowable load of the wire rope itself acts on the wire rope, or the load more than the allowable load of the rope end fitting itself acts on the wire rope, It cannot be absorbed, and breakage of the wire rope as described above, or breakage or deformation of the cable end fitting will occur.

  Recently, in response to a fatal accident caused by a falling rock that occurred in the parking lot at Mt. Fuji in July 2009, there is a strong demand for improving the safety of the falling rock protection fence. In particular, even when there is an unexpected large rock fall, it is possible to absorb these energies, and at least to prevent the rock fall protection fence from being broken and to ensure safety by reliably stopping the rock fall. ing.

  On the other hand, to increase the safety of the rockfall protection fence, increase the design value of the allowable load of the wire rope and rope end fitting in the rockfall protection fence, and use a wire rope and rope attachment metal with a large allowable load. Is not realistic and difficult to implement in terms of economic efficiency.

  Accordingly, the present invention solves the problems of the conventional rope end fitting and the rope end fitting fixing structure described above, and the wire rope can be routed even when a load exceeding a predetermined value is applied to the wire rope or the rope end fitting. By sliding it out from the support post with the end fitting, it absorbs the load and prevents breakage of the wire rope, breakage and deformation of the end fitting and support post, and restrictions on the allowable load of the wire rope itself and the end fitting itself. The object of the present invention is to provide a cable end fitting fixing device and a cable end fitting fixing structure capable of realizing higher safety by increasing the allowable load of the falling rock protection fence and the like.

  In order to achieve the object, the present invention is a cable end fitting fixture for fixing the end portion of a wire rope to a support, a fixing plate that can be in close contact with the support, and an insertion hole formed in the fixing plate A hollow fixed tube that communicates with the insertion hole and is fixed to the fixing plate, a hollow guide tube that can be inserted into the hollow fixed tube, and an open end of the hollow guide tube that is opposite to the insertion direction of the hollow fixed tube. A fixing tool for a cable end fitting made of a plugging material to be closed is provided as a basis.

  The plug member is a wedge body having a hollow portion, the plug member having a small diameter portion having a diameter smaller than the opening end portion of the hollow guide tube, and a large diameter portion having a diameter larger than the opening end portion of the hollow guide tube, A structure in which a screw groove is engraved in the hollow portion of the material, a structure in which a hollow fixed cylinder is fixed in a direction perpendicular to the fixing plate, a structure in which one or a plurality of insertion holes are formed, and a hollow fixed cylinder and a hollow guide cylinder are substantially the same length. The present invention provides a configuration in which the hollow fixed cylinder and the hollow guide cylinder have a length of 30 cm or more, and a configuration in which the hollow guide cylinder is a crushable zone that is broken by a load of a predetermined value or more.

  Also, using any of the above-mentioned fixing tools for the rope end metal fitting, the pillar end for drilling a pillar hole communicating with the insertion hole made in the fixing plate in the pillar and fixing the wire rope A rod-shaped body is arranged at one end of the metal fitting, and the rod-shaped body is inserted into the support hole and the insertion hole of the fixed plate, and is extended into the hollow guide cylinder inserted into the hollow fixed cylinder fixed to the fixed plate. A fixing structure of a cable end metal fitting in which an open end of the cable is fixed to a hollow guide tube through a plug material.

  The rope end metal fitting is composed of a metal fitting main body for fixing the wire rope and a rod-like body fixed to one end of the metal fitting main body, and the rope end metal fitting is a metal fitting main body for fixing the wire rope so as not to be detached via a wedge member. And a structure composed of a rod-like body screwed into one end of the metal fitting body, a structure in which a screw groove is engraved in the open end of the rod-like body, and a plug material is screwed into a screw groove engraved in the open end of the rod-like body The structure which exposed the open end part of the rod-shaped body from the hollow guide cylinder and the hollow fixed cylinder is provided.

  And a structure in which the rod-shaped body is fed out from the fixing tool and the support of the rope end metal by sliding the rod-shaped body screwed with the plug material in the hollow fixed cylinder by a load greater than a predetermined value applied to the wire rope, the wire rope A structure in which a rod-shaped body that slides in the hollow fixed cylinder is drawn out from the support by sliding the plug material in the hollow fixed cylinder with a load greater than a predetermined value applied to the rod, and a rod-shaped body that slides in the hollow fixed cylinder The structure which prevents the breakage of a wire rope and the deformation | transformation of a support | pillar is provided by paying out from a support | pillar.

  According to the present invention having the above-described configuration, the rod-shaped body of the cable end metal fitting can be fixed in the hollow fixed cylinder by the plug material via the hollow guide cylinder, and the hollow guide cylinder is broken by a load of a predetermined value or more. By configuring as a bull zone, the load applied to the wire rope due to falling rocks or the like can be absorbed by the hollow guide tube. Therefore, when a load is applied to the wire rope due to falling rocks, etc., if the load is less than the strength of the hollow guide tube, the rod-shaped body remains fixed in the hollow fixed tube by screwing the plug material to the hollow guide tube. , Rocks can be supported inside the rockfall guard fence. On the other hand, when a load exceeding a predetermined value exceeding the strength and fixing force of the hollow guide cylinder is applied, the hollow guide cylinder is destroyed by the load. The rod-shaped body slides a predetermined length in the hollow fixed cylinder while the material is screwed, and is fed out from the fixing tool and the column of the cable end fitting. At this time, since the rod-shaped body has a predetermined length and is extended into the hollow fixed cylinder via the hollow guide cylinder, the rod-shaped body is slid by a predetermined length and is only drawn out from the fixing tool and the column of the rope end fitting. Have a margin.

  By extending the rod end of the cable end bracket with the wire rope fixed in this manner from the cable end bracket fixture and support post, it is possible to prevent breakage of the wire rope, breakage and deformation of the cable end bracket and support post, rock fall, etc. Can be held without jumping out of the rockfall protection fence. If the hollow guide tube is replaced, other members can be reused.

The whole perspective view of the fixing tool of the cable end metal fitting concerning this invention. The front view of the fixing tool of the rope end metal fitting concerning this invention. The top view of FIG. The right view of FIG. The left view of FIG. The expanded longitudinal cross-sectional view of FIG. The assembly explanatory drawing of the fixing tool of a cable end metal fitting concerning the present invention. The center cross-sectional view of a metal fitting main body. The principal part plane sectional view which shows the use condition of the fixing tool of the cable end metal fitting concerning this invention. The front view which shows the use condition of the fixing tool of the cable end metal fitting concerning this invention. The perspective view which shows the use condition of the fixing tool of the cable end metal fitting concerning this invention.

  DESCRIPTION OF EMBODIMENTS Embodiments of a cable end fitting fixture and a cable end fitting fixing structure according to the present invention will be described below with reference to the drawings. The present invention does not directly fix the cable end fitting 10 fixed to the end portion of the wire rope to the support column 18 as in the prior art, but attach the cable end fitting 10 via the cable end fitting fixing tool 1 according to the present invention. When the wire rope 17 is subjected to a load of a predetermined value or more by being fixed to the support 18, the wire end fitting 10 itself is slid from the wire end fixing fixture 1 and the support 18 to thereby remove the wire rope 17. It is characterized by preventing breakage and deformation of the cable end fitting 10 and the column 18.

  FIG. 1 is an overall perspective view of a cable end fitting fixture 1 according to the present invention, FIG. 2 is a front view, FIG. 3 is a plan view, FIG. 4 is a right side view, FIG. 5 is a left side view, and FIG. FIG. 7 is an explanatory view of assembly. The cable end fitting fixture 1 according to the present invention includes a fixing plate 2, an insertion hole 3 formed in the fixing plate 2, a hollow fixed cylinder 4 communicating with the insertion hole 3 and fixed to the fixing plate 2, and a hollow A hollow guide tube 5 (see FIG. 7) that can be inserted into the fixed tube 4 and a plug member 6 (see FIG. 7) that closes the open end 5a of the hollow guide tube 5 are configured.

  The fixed plate 2 is a rectangular plate having a predetermined area. The fixed plate 2 has a flat portion 2a that can be brought into close contact with one surface of the support column 18, and one or a plurality of insertion holes 3 are formed in the flat portion 2a. The same number of hollow fixing cylinders 4 as the insertion holes 3 communicate with the insertion holes 3 in a direction perpendicular to the fixing plate 2 and are fixed to the fixing plate 2 by appropriate means such as welding. In the illustrated example, three hollow fixed cylinders 4 are fixed. The number of insertion holes 3 and hollow fixed cylinders 4 is determined by the number of rope end fittings 10 for fixing the wire rope. Further, the length of the hollow fixed cylinder 4 is not particularly limited as long as it can be stopped by sliding the rope end fitting 10 itself when a load of a predetermined value or more is applied to the wire rope. About 30 to 60 cm is appropriate.

  As shown in FIG. 7, the hollow guide tube 5 has substantially the same length as the hollow fixed tube 4 and a small diameter, and can be inserted into the hollow fixed tube 4. The hollow guide cylinder 5 is configured as a crushable zone that is broken by a load of a predetermined value or more. In addition, as long as it can be inserted into the hollow fixed cylinder 4 as a whole, it may have a shape whose cross-sectional shape changes in the longitudinal direction. The plug member 6 is formed of a wedge body having a hollow portion, and has a small diameter portion 6 a having a diameter smaller than that of the open end portion 5 a of the hollow guide tube 5 and a large diameter portion 6 b having a diameter larger than that of the open end portion 5 a of the hollow guide tube 5. And a screw groove 6c is formed in the hollow portion. The plug member 6 can close the open end 5a of the hollow guide tube 5 in the direction opposite to the insertion direction of the hollow fixed tube 4 (see FIG. 9).

  The strut 18 may have the same configuration as a conventional strut that directly fixes the cable end fitting 10, but the flat contact surface 18 a that closely contacts the fixing plate 2 of the anchor 1 of the rope end fitting and the close contact surface 18 a are perforated. It is provided and has one or a plurality of insertion holes 18b through which the rod-shaped body 12 of the cable end fitting 10 is inserted. In the illustrated example, a support 18 having an H-shaped cross section is used.

  The rope end bracket 10 is a bracket for fixing the wire rope 17 to a column 18 such as a terminal column in the rock fall protection fence. In addition, the wire rope 17 in this invention contains the whole cord-like body which can be used as PC wire and other wire ropes. The cable end fitting 10 includes a wedge member 13 that loosens the twist of the end portion of the wire rope 17 and is inserted between the strands, and a metal fitting body 11 that has a hollow portion 11a that accommodates the wedge member 13 so that it cannot be pulled out at one end. And a rod-like body 12 composed of a bolt shaft screwed into a screw hole 11b formed at the other end of the metal fitting body 11. An opening portion 11c for operation is formed at the center of the metal fitting body 11.

  The rod-shaped body 12 has a predetermined length longer than the fixing tool 1 of the cable end fitting in the longitudinal direction of the hollow fixed cylinder 4, and screw grooves 12 a and 12 b in opposite directions are engraved at both ends. The portion can be screwed into the screw hole 11b of the metal fitting body 11 via the nuts 14 and 15 so as to sandwich the metal fitting main body 11, and the other end is a hollow of the plug member 6 in the fixing tool 1 of the cable fitting. The screw groove 6c carved in the part is configured to be screwable.

  Next, a method for fixing the rope end fitting 10 using the rope end fitting fixture 1 having the above-described configuration will be described with reference to FIG. First, in a rockfall protection fence or the like, the twist of the end portion of the wire rope 17 to be fixed to the support 18 is loosened, and the wedge member 13 is interposed between the strands. And by this wedge member 13, the wire rope 17 is stored and fixed in the hollow part 11a formed in the one end part of the metal fitting main body 11 so that it cannot drop out. On the other hand, the screw groove 11 a of the rod-like body 12 is screwed into the screw hole 11 b at the other end of the metal fitting body 11, and both ends of the screw hole 11 b are fixed with nuts 14 and 15.

  Next, the rod-like body 12 screwed into the metal fitting body 11 is inserted into the hollow fixed cylinder 4 through the insertion hole 18 b of the support column 18 and the insertion hole 3 of the fixing plate 2 brought into close contact with the contact surface 18 a of the support column 18. Stretch. Then, the hollow guide cylinder 5 as a crushable zone is inserted into the outer periphery of the rod-shaped body 12 in the hollow fixed cylinder 4, and one end thereof is brought into contact with the fixed plate 2. Therefore, the outer periphery of the rod-shaped body 12 in the hollow fixed cylinder 4 is covered with the hollow guide cylinder 5. In this state, the screw groove 6c formed in the hollow portion of the plug member 6 formed of a wedge body is screwed into the screw groove 12b formed in the end portion of the rod-shaped body 12, thereby reducing the diameter of the plug member 6. The portion 6 a is made to enter the hollow guide tube 5, and the large diameter portion 6 b is locked to the open end portion 5 a of the hollow guide tube 5. Since the large diameter portion 6b is configured to be smaller than the diameter of the hollow fixed cylinder 4, the plug member 6 can slide in the hollow fixed cylinder 4 with a force exceeding the strength and fixing force of the hollow guide cylinder 5. is there. Thereby, the rod-shaped body 12 of the cable end fitting 10 to which the wire rope 17 is fixed is fixed to the column 18 by the cable end fitting fixture 1 as shown in FIG. FIGS. 10 and 11 are a front view and a perspective view showing a use state in which the cable end fitting 10 for fixing the wire rope 17 and the column 18 of the rock fall protection fence 20 is fixed by the cable end fitting fixture 1.

  In the above use state, when a load is applied to the wire rope 17 due to falling rocks or the like, if the load is less than the strength or fixing force of the hollow guide cylinder 5, the rod-like body 12 is attached to the hollow guide cylinder 5 by the plug material 6. By maintaining the state fixed to the opening end 5a, the state in which the wire rope 17 is fixed to the support column 18 can be maintained, and falling rocks and the like can be supported inside the falling rock protection fence 20. On the other hand, when a load exceeding a predetermined value exceeding the allowable load of the strength and fixing force of the hollow guide cylinder 5 acts on the wire rope 17, the wire rope 17 is cut or the rope end fitting 10 or the wedge member 13 is destroyed. Before the rod-shaped body 12 is fixed to the hollow guide cylinder 5 by the plug material 6, the rod-shaped body 12 is hollow-fixed by breaking the hollow guide cylinder 5 as a crushable zone with the plug material 6. It is drawn out in the direction of arrow X (see FIG. 9) within the cylinder 4. At this time, since the rod-shaped body 12 is longer than the hollow guide cylinder 5 having a length of 30 cm or more, the rod-shaped body 12 has a margin enough to slide out a predetermined length and be fed out from the hollow fixed cylinder 4 and the column 18. In this way, by pulling out the rod-shaped body 12 from the cable end fitting fixture 1 and the support column 18, breakage of the cable end fitting 10 and the wire rope 17 and deformation of the support column 18 can be prevented.

  At this time, it is important that the allowable load (fixing force) of the hollow guide tube 5 with respect to the plug member 6 is smaller than the allowable load of the rope end fitting 10 and the wire rope 17 itself and the fixing force of the plug member 6 with respect to the rod-shaped body 12. Design in advance. That is, the allowable load (fixing force) of the hollow guide tube 5 <the allowable load of the wire rope 17, the cable end fitting 10 or the plug member 6 is set. As a result, when a load of a predetermined value or more acts on the wire rope 17 due to falling rocks or the like, the allowable load of the hollow guide tube 5 (before the load exceeding the allowable load of the wire rope 17, the cable end fitting 10 or the plug member 6 is applied ( In this case, the hollow guide cylinder 5 serving as a crushable zone is destroyed, and the rod-shaped body 12 is hollow against the fixing to the hollow guide cylinder 5 by the plug 6. 4 is slid out from the hollow fixed cylinder 4 and the support column 18 so that the wire rope 17 is cut, the rope end fitting 10 is broken, or a load of a predetermined value or more is directly applied to the support column 18. Thus, it is possible to prevent the support column from being deformed or collapsed.

  Specifically, the allowable load (fixing force) of the hollow guide cylinder 5 may be set to a kinetic energy of about 50 kj. Therefore, when a kinetic energy load of 50 kj or more is applied to the wire rope 17, the hollow guide cylinder 5 as a crushable zone is destroyed, and the rod-like body 12 is fixed hollowly against the fixing to the hollow guide cylinder by the plug member 6. Sliding starts in the cylinder 4. In addition, what is necessary is just to set the allowable load (fixing force) of the hollow guide cylinder 5 freely according to the objective and the allowable load of the wire rope 17 itself. If the load applied to the wire rope 17 is smaller than the fixing force of the plug member 6 by the hollow guide cylinder 5, the rod-shaped body 12 is not drawn out from the hollow fixed cylinder 4, and the wire rope 17 is fixed to the column 18. The rock fall that caused the load can be supported inside the rock fall protection fence.

  As an embodiment, using the cable end fitting fixture 1 according to the present invention, five wire ropes 17 are arranged at equal intervals in the height direction and a wire mesh is laid, and the height is 1.5 m and the length is 9 m. The rock fall protection fence 20 was manufactured. In addition, as a conventional example, a rock fall protection fence similar to the example was manufactured using a conventional rope end fitting that fixes the rope end of the wire rope. With respect to these rockfall protection fences, an experiment was conducted in which a spherical concrete block having a mass of 2 tons was collided at a speed of 10 m / second (36 km / hour) and a kinetic energy of 100 kj. Generally, the energy that can be absorbed by the rockfall guard fence is 55 kj, so the impact energy that has been tested is approximately twice that.

  In a rockfall protection fence using a conventional rope end bracket, the rope end bracket is deformed, the wire rope is detached from the rope end bracket, or the wire rope is broken, and the concrete block jumps out of the rockfall protection fence, and the rockfall protection fence Did not work as. On the other hand, in the rock fall protection fence 20 using the cable end fitting fixture 1 according to the present invention, the shape of the cable end fitting 10 is not changed, and the rod-like body 12 is slightly extended, and the concrete block is stopped. I was able to. This is because the load applied to the wire rope is controlled and adjusted by the fixing tool 1 of the cable end fitting so that a load exceeding the allowable load is not applied to the wire rope 17 and the cable end fitting 10.

  According to the present invention having the above-described configuration, the rod-shaped body of the cable end metal fitting can be fixed in the hollow fixed cylinder by the plug material via the hollow guide cylinder, and the hollow guide cylinder is broken by a load of a predetermined value or more. By configuring as a bull zone, the load applied to the wire rope due to falling rocks or the like can be absorbed by the hollow guide tube. Therefore, when a load is applied to the wire rope due to falling rocks, etc., if the load is less than the strength of the hollow guide tube, the rod-shaped body remains fixed in the hollow fixed tube by screwing the plug material to the hollow guide tube. , Rocks can be supported inside the rockfall guard fence. On the other hand, when a load exceeding a predetermined value exceeding the strength and fixing force of the hollow guide cylinder is applied, the hollow guide cylinder is destroyed by the load. The rod-shaped body slides a predetermined length in the hollow fixed cylinder while the material is screwed, and is fed out from the fixing tool and the column of the cable end fitting. At this time, since the rod-shaped body has a predetermined length and is extended into the hollow fixed cylinder via the hollow guide cylinder, the rod-shaped body is slid by a predetermined length and is only drawn out from the fixing tool and the column of the rope end fitting. Have a margin.

  By extending the rod end of the cable end bracket with the wire rope fixed in this manner from the cable end bracket fixture and support post, it is possible to prevent breakage of the wire rope, breakage and deformation of the cable end bracket and support post, rock fall, etc. Can be held without jumping out of the rockfall protection fence. If the hollow guide tube is replaced, other members can be reused.

DESCRIPTION OF SYMBOLS 1 ... Fixing tool of a cable end metal fitting 2 ... Fixing plate 3,18b ... Insertion hole 4 ... Hollow fixed cylinder 5 ... Hollow guide cylinder 5a ... Opening end part 6 ... Plug material 6a ... Small diameter part 6b ... Large diameter part 6c ... Screw Groove 10 ... Raw end fitting 11 ... Fitting main body 11a ... Hollow part 11b ... Screw hole 11c ... Window part 11 ... Fitting main body 12 ... Bar-shaped body 12a, 12b ... Screw groove 13 ... Wedge member 14, 15 ... Nut 17 ... Wire rope 18 ... post 18a ... close contact 20 ... fall rock guard

The plug member is a wedge body having a hollow portion, the plug member having a small diameter portion having a diameter smaller than the opening end portion of the hollow guide tube, and a large diameter portion having a diameter larger than the opening end portion of the hollow guide tube, A structure in which a screw groove is engraved in a hollow portion of the material, a structure in which a hollow fixing cylinder is fixed in a direction orthogonal to the fixing plate, a structure in which one or a plurality of insertion holes are formed, and a hollow fixing cylinder and a hollow guide cylinder have the same length And a configuration in which the hollow fixed cylinder and the hollow guide cylinder have a length of 30 cm or more and a structure in which the hollow guide cylinder is made a crushable zone that is broken by a load of a predetermined value or more.

Claims (17)

A cable end fitting fixing tool for fixing the end of the wire rope to the support,
A fixing plate that can be in close contact with the support column, an insertion hole formed in the fixing plate, a hollow fixed cylinder that communicates with the insertion hole and is fixed to the fixing plate, a hollow guide cylinder that can be inserted into the hollow fixed cylinder, and a hollow fixed A cable end fitting fixture comprising: a plug member that closes an open end of a hollow guide tube in a direction opposite to a direction of insertion into a tube.   The plug member is a wedge body having a hollow portion, and has a small diameter portion that is smaller in diameter than an open end portion of the hollow guide tube and a large diameter portion that is larger in diameter than the open end portion of the hollow guide tube. Rope end fixture.   3. A cable end fitting fixture according to claim 2, wherein a screw groove is formed in the hollow portion of the plug member.   4. A cable end fitting fixture according to claim 1, wherein a hollow fixing tube is fixed in a direction perpendicular to the fixing plate.   The fixing tool for a cable end fitting according to claim 1, 2, 3 or 4, wherein one or a plurality of insertion holes are formed.   6. A cable end fitting fixture according to claim 1, wherein the hollow fixing cylinder and the hollow guide cylinder have substantially the same length.   The cable end fitting fixture according to claim 1, 2, 3, 4, 5 or 6, wherein the hollow fixing cylinder and the hollow guide cylinder have a length of 30 cm or more.   The fixing tool of a rope end metal fitting according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the hollow guide tube is a crushable zone that is broken by a load of a predetermined value or more. Use the cable end bracket fixture according to any one of claims 1 to 8,
A strut hole communicating with the insertion hole drilled in the fixing plate is drilled in the strut, and a rod-shaped body is arranged at one end of the rope end metal fitting for fixing the wire rope. It is inserted into the insertion hole and extended into the hollow guide cylinder inserted into the hollow fixed cylinder fixed to the fixing plate, and the open end of the rod-shaped body is fixed to the hollow guide cylinder via the plug material. The fixing structure of the cable end bracket.   The rope end fitting fixing structure according to claim 9, wherein the rope end fitting is composed of a fitting main body for fixing the wire rope and a rod-like body fixed to one end of the fitting main body.   The fixing structure of a rope end metal fitting according to claim 9, wherein the rope end fitting includes a metal fitting main body that fixes the wire rope so as not to be detached via a wedge member, and a rod-like body screwed to one end of the metal fitting main body.   12. The structure for fixing a cable end fitting according to claim 9, 10 or 11, wherein a screw groove is formed in an open end portion of the rod-shaped body.   The fixing structure of a cable end metal fitting according to claim 12, wherein a plug member is screwed into a screw groove carved in an open end portion of the rod-like body.   The fixing structure of the cable end fitting according to claim 9, 10, 11, 12, or 13, wherein the open end portion of the rod-shaped body is exposed from the hollow guide tube and the hollow fixed tube.   9. The rod-shaped body is fed out from the fixing tool and the support of the cable end fitting by sliding the rod-shaped body screwed with the plug member in the hollow fixed cylinder by a load greater than a predetermined value applied to the wire rope. 11. A structure for fixing a cable end fitting according to 11, 12, 13 or 14.   The rod-shaped body that slides in the hollow fixed cylinder is fed out from the column by sliding the plug material in the hollow fixed cylinder with a load greater than a predetermined value applied to the wire rope. , 14 or 15 fixing structure of the cable end fitting.   17. The fixing structure of a rope end metal fitting according to claim 15 or 16, wherein a rod-shaped body that slides in a hollow fixed cylinder is extended from the support to prevent breakage of the wire rope and deformation of the support.

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