JP7091180B2 - Mounting holder for cord body - Google Patents

Description

The present invention relates to a cord body attachment holder for reliably attaching and holding a climbing prevention device for preventing climbing plants from crawling along a branch line supporting a utility pole.

The applicant has jointly completed and applied for a climbing prevention device that prevents climbing plants from creeping up along a branch line that supports a structure such as a utility pole erected on the ground (Patent Document). 1). This climbing prevention device for climbing plants is provided in the longitudinal direction of a cord body (for example, specifically, a steel stranded wire rope or the like is used) that functions as a branch line stretched between the ground and a utility pole. A tubular covering body attached to the middle part of the cord body is provided so as to cover the middle part. A cut is formed in a part around the axis of the covering, and the middle part of the cord is inserted into the inside of the covering through the cutting.

Further, as a device for preventing climbing of climbing plants with a simple structure, a slip-winding preventive device for utility pole branch lines has also been proposed (Patent Document 2). This staggered winding prevention tool is an extruded synthetic resin product obtained by integrally molding a plate-shaped plate blade and a branch line mounting cylinder, and is used by fitting the branch line mounting cylinder portion along the branch line.

Japanese Unexamined Patent Publication No. 2014-217301 Utility Model Registration No. 3123795 Gazette

In the creep-up prevention device disclosed in Patent Document 1, a cut is formed over the entire axial direction of a tubular covering body having a predetermined diameter in order to facilitate and reliably support the attachment work of the branch line to the cord. Then, the cord was inserted into the cut, and two points in the middle of the cord were directed toward the cord from the support having the tongue piece formed at the tip of the three protrusions and its surroundings. It is held by pressure contact with a pressure contact body that can apply tightening force. As a result, the creep-up prevention device can be easily and surely attached to and held on the cord. However, since these supports and pressure welders are composed of a plurality of parts to be incorporated in a part of the covering body, there is a problem that the manufacturing cost is high.

Further, since the razor winding preventive tool disclosed in Patent Document 2 is an integrally molded product of synthetic resin, a branch line (straw body) having a wire diameter that fits tightly into a branch line mounting cylinder molded to a predetermined inner diameter. Otherwise, the holding power cannot be obtained.

Therefore, an object of the present invention is to solve the problems of the above-mentioned conventional technique, and to easily and surely attach and hold a crawling prevention device to a branch line (cord body) consisting of various wire diameters supporting a utility pole. It is an object of the present invention to provide a mounting holder for a cord body.

In order to achieve the above object, the present invention is a rod attachment holder for attaching and holding an object to be held to the cord, and the spring wire is provided at a predetermined length interval at a predetermined bending angle in the longitudinal direction. It has a coil portion in which the side portions of the spiral shape having polygons in the longitudinal direction are continuous, and the coil portion is elastic so that a part of the side portion of the spiral shape is in close contact with the cord. It is characterized in that the object to be held is attached to and held by the spiral body by being deformed and wound.

It is preferable that the end portion of the spring wire rod is bent to form a hook that can be engaged with the holding object and the cord body at the end portion of the coil portion.

It is preferable that the side portion of the polygonal spiral shape has a substantially regular triangular shape when viewed from the end portion of the coil portion.

The object to be retained is preferably a climbing prevention device for climbing plants, and the cord is preferably a branch line of a utility pole.

The perspective view which showed the state which the creep-up prevention device was fixedly held to the branch line (the cord body) of the electric pole by one Embodiment of the attachment holder for a cord body of this invention. Partially enlarged view showing the state where the crawling prevention device is connected to the branch line (cord body) of the utility pole and fixedly held. It is explanatory drawing which showed one composition of the attachment holder for a cord body of this invention, the example of the attachment form to a cord body, and the general spiral attachment holder. A front view, a side view, a partial end view, and a plan view explaining the shape and overall configuration of each part of the attachment / holding tool for a cord body of the present invention.

Hereinafter, an embodiment of the attachment / holding tool for a cord body of the present invention will be described with reference to the accompanying drawings regarding the usage mode and the configuration example of the crawling prevention device for fixed support.

1 (a) and 1 (b) are the attachment holder 10 for a cord body of the present invention, which is used for attaching and holding a crawling prevention device 50 to a cord body 1 as a branch line of a utility pole (not shown). An embodiment is shown. The configuration of the crawling prevention device 50 supported by the cord body 1 via the cord body attachment holder 10 will be described with reference to each drawing of FIG. 1.

The crawling prevention device 50 includes a flag-shaped portion mainly composed of a sheet body 51 made of a synthetic fiber mesh sheet and a cover sheet 55 whose peripheral portion is reinforced by a shape-retaining member (described later). The sheet body 51 is sewn in a bag shape along the peripheral edges of the long side and the short side so as to hold the shape-retaining member 60 described later, and the elongated flag shape is held. The seat body 51 is suspended and supported by the cord 1 via the cord attachment holder 10 and a plurality of connecting hooks 20 described later, but the attachment portion of the seat body 51 to the cord 1 is attached. The long side of the cover sheet 55 is sewn along the upper end of the long side of the sheet body 51 so as to cover it. The cover sheet 55 has a hook-and-loop fastener 56 attached along its long and short sides, and a hook-and-loop fastener 57 attached to the seat body 51 side so as to face the surface fastener 56. Therefore, in the crawling prevention device 50 of the present embodiment, the cover sheet 55 is bent along the cord 1 extending in the longitudinal direction, and the peripheral portions are surface-bonded with the surface fasteners 56 and 57 to form a bag shape. The cover sheet 55 covers the upper side portion of the cord body 1 and the creep-up prevention device 50. This prevents climbing plants from rolling up in the gap between the cord body 1 and the sheet body 51 (FIG. 1 (b)). As the hook-and-loop fasteners 56 and 57, various existing couplings such as hooks and loops can be used.

A mesh sheet is used for the seat body 51 and the cover sheet 55. As the mesh sheet, a woven fabric sheet having ventilation is used in which the surface of a polyester fiber woven fabric is coated with a vinyl chloride resin. After the sheet body 51 is cut into a predetermined developed shape as described above, the periphery of the sheet is sewn and reinforced in a bag shape so as to hold the shape-retaining member along each side to form a flag-shaped portion. (Fig. 2, each figure). In the present embodiment, the flag-shaped portion composed of the seat body 51 is set to have a length L = 1,000 to 1,500 mm and a width F = 150 to 300 mm. As the material of the sheet body 51 and the cover sheet 55, in addition to a mesh sheet-like woven fabric, a polyester long fiber non-woven fabric having a predetermined thickness or the like can also be used.

In order to maintain the shape of the flag-shaped portion in the installed state, a small diameter pipe 60 as a shape-retaining member is attached around the seat body 51. Therefore, even when the wind blows strongly, the rectangular shape does not collapse. In this embodiment, a vinyl chloride pipe having a pipe diameter of 8 mm is used as the shape-retaining member. The small diameter pipe 60 is composed of two pipes 60a and 60b having different lengths bent into a U shape, and both ends thereof face each other to form a square shape as a whole, and the total length is the length of the flag-shaped part. It is joined at the joining portion 61 so as to match the L. The shape-retaining member may be a solid bar such as a glass fiber reinforced (FRP) bar in addition to the small diameter pipe. As the material, FRP, aluminum, stainless steel or the like can be used in addition to vinyl chloride.

Further, four connecting hooks 20 for connecting and holding the entire crawling prevention device 50 along the branch line 1 as a cord are attached at substantially equal intervals along the longitudinal direction of the seat body 51. (Fig. 1). The connecting hook 20 is made of an S-shaped stainless metal fitting, and as shown in FIG. 2A, a fixing tool 54 such as a C-shaped ring is attached to a mounting portion 53 such as a slit formed in the seat body 51 at one end. By locking the other end to the branch line 1, the connection between the entire crawling prevention device 50 and the branch line 1 is maintained. As the connecting hook 20, various materials such as synthetic resin, cloth woven fabric, and leather band can be used in addition to the stainless metal fittings. Further, as the mounting portion 53 and the fixing tool 54 for mounting the connecting hook 20 to the seat body 51, any shape and fixing means other than the slit and the C-shaped ring can be adopted.

As shown in FIG. 1A, the creep-up prevention device 50 connected along the branch line 1 by the connecting hook 20 is a cord in which a plurality of straight portions are bent to form a polygonal spiral as an overall shape. It is easily attached to the branch line 1 by the body mounting holder 10, fixedly held, and finally put into service in a state of being covered with the cover sheet 55 (FIG. 1 (b)).

Hereinafter, the configuration of the rod body mounting holder 10 for fixing and holding the crawling prevention device to the branch line 1 of the utility pole will be described with reference to each figure of FIG. 3 and each figure of FIG. FIG. 3A shows a steel stranded wire rope often used for a branch line 1 of a utility pole (hereinafter referred to as a branch wire 1) and a wire rope for a cord body of the present invention. The state in which 10) is entwined is shown in an enlarged manner. FIG. 3B is an end view of the coil portion 15 (described later) of the mounting and holding coil 10. 4 In each figure, FIG. 4B shows a shape in which the bent shape of each part of the wire rod bent at each bent position ((0)-(8)) of the mounting holding coil 10 is viewed as an end face. ing.

As shown in FIG. 3A, the mounting holding coil 10 is a processed wire rod obtained by bending a metal wire rod having a spring property of a predetermined length and wire diameter, and a U-shaped hook 11a is formed as an overall shape. It is composed of the locking portions 11 at both ends and the coil portions 15 bent so as to form a polygonal spiral shape. The locking portion 11 is bent so as to form a U-shaped hook 11a having a width larger than the wire diameter of the branch wire 1 of the solid object. The end of the attached holding coil 10 shown via the U-shaped hook 11a is locked to the branch wire 1 and temporarily held. As shown in FIG. 2A, the mounting holding coil 10 is crimped by inserting a part of the locking portion 11 into the mounting hole 52 formed near the upper end side of the crawling prevention device 50. It is firmly attached to the creep-up prevention device 50.

The coil portion 15 has a continuous polygonal spiral shape formed by bending a spring wire so that each side has a substantially regular triangular shape when viewed from the end face at a predetermined length interval position in the length direction. .. Regarding the processed shape of the coil portion 15, FIGS. 3 (a), (b), 4 ((a) (front view), (b-1) (b-2) (side view), (c) each bending position A partial end view, (d) (plan view)) will be described. The coil portion 15 is composed of a portion between the reference numerals (0) to (8) shown in FIGS. 3 (a) and 4 (d), and the side of the line length B is continuous between (1) and (7). As shown in FIGS. 3 (b) and 4 (c), each side is continuously bent counterclockwise in a substantially regular triangular shape when viewed from the end face. It has a triangular spiral shape in the longitudinal direction. The bending angles α, β, γ, δ, and θ shown in FIG. 4D are the angles formed by the two sides when the adjacent sides are placed flat at the respective bending positions (0)-(8). be. In the present embodiment, each bending angle is set to about α = 60 °, β = 145 °, γ = 120 °, δ = 45 °, and θ = 160 ° as an example. These angles are appropriately set by the degree of twist of the spiral in the longitudinal direction. Further, as shown in FIGS. 3A and 3B, the wire lengths A, B, and C of the wire rod can also be set according to the wire diameter of the branch wire 1 inscribed in the coil portion 15 having a substantially equilateral triangle. preferable. In this embodiment, a stainless steel wire rod (JIS standard SUS304WPB) is used as the spring wire rod constituting the mounting holding coil 10. This stainless steel wire has appropriate springiness and excellent corrosion resistance, and is suitable as a material for the mounting and holding coil 10 of the present invention. Various other metal materials can be used as long as the wire has the same spring performance.

Here, FIGS. 3 (a) and 3 (b) show the fixed state of the mounting / holding coil 10 to the branch wire 1 when the mounting / holding coil 10 having the processed shape shown in each figure of FIG. 4 is attached to the branch wire 1. Will be described with reference to. To fix the mounting and holding coil 10 to the branch wire 1, first, the U-shaped hook 11a of one of the locking portions 11 of the mounting and holding coil 10 is locked to the branch wire 1, and the end of the mounting and holding coil 10 is temporarily fixed. Hold it. From that state, the portion of the symbol (1) is entwined with the branch wire 1 while being elastically deformed so as to bend the coil portion 15, and then the branch wire while bending the portions of the symbols (2)-(7) clockwise in sequence. Wrap around 1. Finally, the locking portion 11 at the other end is locked to the branch wire 1. At this time, as shown in FIG. 3 (b), each part of the reference numerals (1), (3), (6), reference numerals (2), (5), reference numerals (4), and (7) is approximately. It is located so as to form each vertex of an equilateral triangle. At that time, each side forms a spiral of polygons continuous in the longitudinal direction bent at each vertex position. Since the mounting holding coil 10 is made of a spring wire, if the wire diameter of the branch wire 1 is approximately equal to or larger than the inscribed diameter of the triangle viewed from the end face, when it is wound around the branch wire 1, it elastically deforms to the branch wire 1. Wrapped around. Therefore, the spring effect is exerted so as to recover to the triangular shape in the initial state. As a result, a part of the side of each section comes into close contact with the branch wire 1, and the branch wire 1 is strongly tightened. By this tightening force, the mounting holding coil 10 is firmly fixed and held to the branch wire 1. Therefore, for example, as shown in FIG. 1, the creep-up prevention device 50 attached to the branch wire 1 by the attachment holding coil 10 is surely fixed and held to the branch wire 1. When the wire diameter of the branch wire 1 is larger than the inscribed diameter of the triangle, each side of the wire rod bends greatly within the elastic deformation range and comes into close contact with the branch wire 1. The spring effect at this time becomes larger, and a larger fixed holding effect can be obtained between the two.

Here, regarding the difference between the tightening and holding action of the branch wire 1 of the mounting holding coil 10 having a polygonal spiral shape of the present invention and the holding action of the coil material 40 having a normal curved spiral shape, FIG. 3 (c). (D) will be described as a reference example. The curved spiral coil material 40 shown in FIG. 3C has a smooth spiral shape with a constant coil inner diameter φc. In such a shape, if the wire diameter of the branch wire 1 is larger than the inner diameter of the coil, that is, if φw> φc, the inner diameter of the coil is expanded and the coil inner diameter is expanded so that it adheres to the outer circumference of the branch wire 1 and the tightening effect can be exhibited. As shown in FIG. 3D, if the wire diameter of the branch wire 1 and the coil inner diameter are the same or the branch wire 1 is smaller than the coil inner diameter and there is a gap even in a part, the tightening effect cannot be obtained at all.

On the other hand, in the polygonal spiral coil of the present invention, each side between the bending positions of the coil portion 15 is elastically deformed and wound so as to be entwined with the branch wire 1, so that even in the case of a thin branch wire 1, there are a plurality of coils. At the side of the portion, the mounting holding coil 10 and a part of the outer peripheral surface of the branch wire 1 are in close contact with each other. Due to the spring effect that tries to return to the initial shape of the mounting and holding coil 10, a tightening force is generated in this close contact portion, and the mounting and holding coil 10 can be fixedly held by the branch wire 1 by this tightening force.

In the above description, an application example (FIG. 1) in which the creep-up prevention device 50 already developed by the applicant is securely fixedly supported by the branch line 1 (branch wire 1) supporting the utility pole has been described. The mounting holder 10 (mounting holding coil 10) is an object to be attached and held to a cord such as a wire or a rope stretched in various places, for example, flags or bulletins similar to the embodiment of the present embodiment. Needless to say, it can be used to easily attach and hold lightweight articles. The same applies to appropriately setting the number of attachment holding coils 10 to be attached to the cord according to the weight of the object.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope shown in each claim. That is, an embodiment obtained by combining technical means appropriately modified within the scope of the claims is also included in the technical scope of the present invention.

1 Branch line (branch wire)
10 Mounting holder for cord body (mounting holding coil)
11 Locking part 15 Coil part 20 Connecting hook 50 Crawling prevention device

Claims (4)

It is a attachment holder for the cord body that attaches and holds the object to be held to the cord body.
The spring wire is sequentially bent in the longitudinal direction at a predetermined bending angle at a predetermined length interval, and has a coil portion in which the sides of a polygonal spiral shape are continuous in the longitudinal direction, and the coil portion is used as each side portion of the spiral shape. A attachment / holding tool for a cord body, characterized in that a part of the object is elastically deformed and wound so as to be in close contact with the cord body, and the holding object is attached to and held on the cord body. The attachment for a cord body according to claim 1, wherein a hook formed by bending an end portion of the spring wire rod and having a hook that can be engaged with the holding object and the cord portion is formed at the end portion of the coil portion. Cage. The attachment holder for a cord according to claim 1, wherein the side portion of the polygonal spiral shape has a substantially regular triangular shape when viewed from the end portion of the coil portion. The attachment / holding tool for a cord according to claim 1, wherein the object to be held is a climbing prevention device for climbing plants, and the cord is a branch line of a utility pole.

Images