JP2006187141A - Coated-wire anchoring metal fittings - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide coated-wire anchoring metal fittings that are reduced in weight for anchoring wires to a construction such as a building, and allow anchoring work to be performed with ease. <P>SOLUTION: The coated-wire anchoring are constituted of a wire holding tool that is formed of a linear body and composed of a wire holder having a spiral inside diameter smaller than the outside diameter of the coated wire at one side, and a folded locking part at the other side; and an anchoring hook formed of a different linear body engaged to a locking part of the wire holding tool. The spiral body of the wire holder is wound round a laid coated wire, the anchoring hook is locked to an anchoring tool fixed to the building, and then the coated wire is anchored to the building. The coated-wire anchoring metal fittings make a fitting tool interposed between the folded locking part and the hook-folded part of the anchoring hook. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric wire retaining metal fitting for retaining and fixing an erected covered electric wire to a structure such as a building.

  A retainer is used to draw a covered electric wire stretched between utility poles into a building or the like. In a conventional fastening tool, an insulator is retained from, for example, an outer wall of a building, and each wire in the middle of a covered electric wire installed on a utility pole is wound around a protrusion formed on the insulator so that the insulator is It is known that the wire is fixed by tying the wire and the wire with a string or the like, and the covered wire is introduced into the building.

  In addition, another known retaining metal fitting has a plate-like insulator plate with a plurality of through holes cut out at the edges, and passes through the plurality of through holes in the middle of the installed covered electric wire, It was intended to support the tension of the electric wire and was bound with a string to prevent it from coming off.

The above retainer is good for insulating and fixing the insulated wire because it uses an insulator insulator, but the insulator is bulky and heavy, and the wire is fixed to the insulator for retaining operation. In order to do this, manual work such as tying with a string is necessary, which is complicated and makes the work impossible.
Furthermore, in recent years, the number of general power consumers has increased, the scale of power supply has been reduced, and the work of drawing in electric wires using utility poles or buildings has increased, making it necessary to save labor in wire retention work. It was.

  The present invention is intended to provide a light-weight and simple-shaped covered wire retaining metal fitting that can easily perform a retaining operation in order to secure each electric wire to a structure such as a building or a dedicated support column. .

The covered electric wire retaining metal fitting of the present invention is for securing an erected covered electric wire to a structure, and the electric wire holding metal fitting engages the electric wire holder and an electric wire holder for gripping the electric wire. It consists of a retaining hook that locks to the building.
The electric wire holder includes a helical wire holding portion formed of a linear body and having a helical inner diameter smaller than the outer diameter of the covered electric wire on one side and a folded locking portion formed folded on the other side.

The other retaining hook has hook folded portions formed by folding the linear body on both sides, and the hook retaining portion of the electric wire holder is latched by one of the hook folded portions, and the other hook folded portion is It is characterized by being fixed to a structure.
The retaining hook is an oval annular body having hook turn-back portions at both ends, and is engaged with the wire gripping portion of the wire gripping portion at one end and the fixed hook of the structure at the other end. Yes.

The electric wire holder having such a configuration can be fixed to a building or the like via the retaining hook only by winding the spiral body around the covered electric wire. In this state, with respect to the tension of the covered electric wire, a tightening force of the helical body is generated by the frictional force due to the tension, whereby the helical body can support the covered electric wire.
The retaining hook can be hooked as it is on an appropriate fixing latch fixed to a building or the like to fix the electric wire holder, and the electric wire can be drawn into a desired position such as a building.

  The electric wire holder 1 constituting the electric wire retaining metal fitting of the present invention is formed from a linear body 10, a wire gripping portion 11 formed in a spiral shape on one side of the linear body, and a turn-up side formed on the other side. The folded locking portion 12 is formed.

As shown in FIG. 1, the wire gripping portion 11 of the wire holder 1 is formed from a linear body into a spiral body having a spiral inner diameter smaller than the outer diameter of the covered electric wire to be gripped and fixed. Usually, as shown to FIG. 1 (A), both the linear bodies folded by the folding | turning latching | locking part 12 are helically formed, and there exist a pair of electric wire holding parts 11 and 11. FIG.
Further, as shown in FIG. 1B, a spiral body may be formed only on one linear body 10 that is folded back from the folding back locking portion 12 to form the electric wire gripping portion 11. Such an electric wire gripper 11 on only one side can be used to hold a covered electric wire having a small tensile force when it is installed.

  The linear body 10 used for the electric wire holder 1 can be formed of a spiral body and can be made of a material having strength against tension, and is preferably a hard metal wire, particularly a hard steel wire. Such a linear body 10 is particularly preferably a wire having excellent weather resistance, and for example, a zinc-coated hard steel wire or a stainless steel wire is used.

As will be described later, the electric wire holder 1 is connected by engaging the retaining hook 2 with the turn-back locking portion 12, but with the fitting tool 3 interposed in the turn-back locking portion 12 of the electric wire holder, The fastening hook 2 may be engaged.
The fitting 3 is particularly preferably formed of an insulator, and is electrically insulated and mechanically so that the folded back locking portion 12 of the electric wire holder 1 and the below-described retaining hook 2 do not directly contact each other. A structure that can withstand a tensile force is used. A polymer or ceramics can be used for the insulator.

As an example of the fitting 3, in FIG. 2, a disk-like insulator is used, and a circumferential groove 37 is provided in the circumferential direction on the outer periphery, and a through hole 38 penetrating front and back is provided in the center of the disk.
Such a disk-shaped fitting 31 is manufactured separately from ceramic or glass.

As shown in FIG. 2, in such a disk-shaped insulator, the linear body of the turn-back locking portion 12 of the wire holder 1 is fitted into the circumferential groove 37 on the outer periphery of the insulator. As shown in FIG. 4, the linear body 20 of the retaining hook 2 passes through the through-hole 38 inside the insulator, and connects the wire holder 1 and the retaining hook 2.
However, conversely, the hook turn-back portion 22 or the annular portion of the retaining hook 2 is fitted into the groove 37 on the outer periphery of the disc, and the turn-back locking portion 12 of the electric wire holder 1 is passed through the through-hole 38 of the disc for connection. You may do it.

  FIG. 3 shows another form of fitting, but in the example shown in FIGS. 3A and 3B, the fitting 3 has a U shape or a horseshoe shape. Are integrated so as to wrap around the folded back locking portion 12 of the electric wire holder 1 and the linear portion 13 in the vicinity thereof. The recessed part 39 between the both side parts 33 and 33 of the U-shaped fitting 32 is utilized as a latching | locking part latched with the hook return part 22 of the retaining hook 2 (refer FIG. 5 (A)).

  Such a U-shaped fitting 32 is preferably made of a polymer material such as a synthetic resin as an insulating material. The folded portion of the electric wire holder is cast and molded with synthetic resin, and the synthetic resin covers the periphery of the linear body as shown in FIG. Thereby, it is set as the fitting tool of insulating resin. The synthetic resin is preferably a synthetic resin having weather resistance as well as insulation and moderate strength.

  The retaining hook 2 is formed of a linear body 20 and has an annular shape having hook folded portions 22 and 23 folded on both sides. The retaining hook may be a closed ring or an open ring as long as it is annular, and may be an oval or not an annular ring. Further, as shown in FIG. 4 and FIG. The folded portions 22 and 23 may be formed by twisting an oval annular body at an appropriate angle.

  As the linear body 20 used for the retaining hook 2, a hard metal wire, particularly a hard steel wire, is selected, and a wire material excellent in weather resistance is particularly preferable, for example, a zinc-drawn hard steel wire or a stainless steel wire. Used.

FIG. 4 and FIG. 5 show an example of a covered electric wire retaining metal fitting by a combination of the electric wire holder, the fitting tool, and the retaining hook.
The covered wire retaining metal fitting shown in FIG. 4 is an insulator of a disk-shaped fitting 12 as a fitting 3 to a turn-back locking portion 12 of a wire holder 1 having a pair of wire gripping portions 11, 11 formed of a hard wire. On the other hand, the hook turn-back portion 22 of the oval hook 2 is inserted through the through-hole 38 at the center of the disc-shaped insulator.

  The covered wire retaining metal fittings shown in FIGS. 5 (A) and (B) are respectively provided with the retaining hook 2 in the recess 39 inside the U-shaped fitting shown in FIG. 2 (A) and FIG. 2 (B). The hook turn-back portion 22 is coupled so as to be fitted.

  FIG. 5C is a modified example of the covered wire retaining metal fitting of FIG. 5A, and a protrusion 35 for preventing hook disengagement is formed inside both side portions 33 of the U-shaped fitting 32. In this example, the hook turn-back portion 22 of the retaining hook 2 fitted in the recess 39 of the fitting 3 is blocked by the projection 35 so that it cannot be easily detached. Thereby, it is possible to prevent inconveniences such as the once assembled retaining hook 2 being detached from the fitting 3 due to the slack of the covered wire retaining metal fitting during the operation of retaining the covered wire.

  In use, as shown in FIG. 6 (A), a fixing hook 5 is fixed to the outer surface 50 of a structure such as a building as a fixing latch on the structure side. The helical body of the wire gripping portion 11 of the tool 1 is wound around the middle portion of the covered electric wire 6 mounted outdoors, and the other retaining hook 2 is hung on the fixed hook 5 and is retained by the structure. At this time, the covered wire 6 is adjusted to have an appropriate degree of slack and to maintain an appropriate tension between the helical body of the wire holder 1 and the covered wire 6, whereby the helical body of the wire gripping portion 11 is adjusted. However, the covered electric wire 6 is securely fixed without slipping. On the other hand, the front side of the covered covered electric wire 6 may be completely slackened, and the covered electric wire can be drawn into a building or the like.

  FIG. 6 (B) shows that one fixed hook 5 is fixed to a structure 50 such as a building, and two covered wire retaining metal fittings shown in FIG. 6 (A) are hooked on this fixed hook. The spiral body of the electric wire holding part of the electric wire holder 1 holds the covered electric wire 6 so as to hold the two covered electric wires. In this way, a plurality of covered electric wires can be easily retained by locking an appropriate number of covered electric wire retaining metal fittings to one fixed hook.

  The covered wire retaining metal fitting of the present invention comprises an electric wire holder for holding and fixing an outdoor covered electric wire to be mounted and a holding hook for connecting and holding the electric wire holder to a building. At the time of holding work, without using a special tool, only the work of winding the spiral of the wire holder around the covered electric wire and the work of hooking the holding hook on the fixed locking tool of the structure, The wire holding work can be completed easily, and the holding work for structures such as utility poles and buildings can be simplified and labor-saving can be achieved.

  By interposing the fitting between the wire holder and the retaining hook, it is possible to prevent breakage due to the hook of the retaining hook and the wire body of the wire retainer, or folding due to folding, and further insulate the fitting. By using the body, leakage from the covered electric wire can be prevented.

  In particular, if the fitting is formed of synthetic resin so as to cover the folded portion of the electric wire holder, the fitting is lightweight and the fitting and the electric wire holder are integrated. Therefore, it is unnecessary to attach the fitting tool, which can further contribute to the simplification of the work.

The figure (A, B) which shows the electric wire holder used for the covered electric wire retention metal fitting which concerns on the Example of this invention. The combination of the electric wire holder used for the covered electric wire retaining metal fitting which concerns on the Example of this invention, and a holding tool is shown. The figure (A, B) which shows another combination of the electric wire holder used for the covered wire retaining metal fitting which concerns on the Example of this invention, and a holding tool, and sectional drawing (C) in a holding tool. The external view of the covered wire retaining metal fitting which concerns on the Example of this invention. The external view (AC) of another covered wire retaining metal fitting which concerns on the Example of this invention. The external view (A, B) which shows the use condition of an electric wire retainer with the covered electric wire retainer of the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric wire holder 11 Electric wire holding part 12 Folding locking part 2 Retaining hook 22 Hook folding part 3 Fitting tool
37 Circumferential groove 38 Through hole
6 Coated wire

Claims (7)

An electric wire holder formed of a wire body formed of a linear body and having a spiral inner diameter smaller than the outer diameter of the covered electric wire on one side and a folding engagement portion on the other side, and a folding mechanism of the electric wire holder A retaining hook formed of a separate linear body to engage with the stopper, and a covered wire retaining metal fitting,
A covered wire retaining metal fitting in which a spiral body of an electric wire gripping portion is wound around a covered electric wire to be installed and a retaining hook is locked to a fastener fixed to the structure so that the covered electric wire is retained in the structure. .   The covered electric wire retaining metal fitting according to claim 1, wherein the electric wire gripping portion is a two-row spiral member that is connected to both of the linear bodies folded back from the electric wire gripping portion.   The retaining hook is an oval annular body having hook turn-up portions at both ends so that one end engages with the wire gripping portion of the wire holder and the other end engages with the fixed locking member of the structure. The covered electric wire retaining metal fitting according to claim 1 or 2, characterized in that   The covered wire retaining metal fitting according to claim 1 or 2, wherein the covered wire retaining metal fitting includes a fitting interposed between the folded back locking portion and the hook folded back portion of the retaining hook.   The above-mentioned fitting tool is an insulator having a through hole through which the hook turn-back portion of the retaining hook penetrates inside the insulator, the turn-back locking portion of the electric wire holder having a fitting outer diameter. The covered wire retaining metal fitting according to claim 4, wherein the covered wire retaining metal fitting is provided.   The covered wire retaining metal fitting according to claim 4, wherein the fitting tool is disposed along the folded-back locking portion. The covered electric wire retaining metal fitting according to any one of claims 4 to 6, wherein the insulator is made of a polymer or ceramics.

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