JP2012257393A - Cable anchor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable anchor that can reduce manufacturing costs and improve simple installation that avoids a troublesome bending operation of a cable support wire, namely, ease of operation.SOLUTION: A planar main body 1 is made of a band-shaped metal plate. One end part of the band-shaped metal plate in a longitudinal direction thereof is a hooking part 3 hooked on a receiving member disposed in a building or the like, and the other end side thereof is a support wire fitting part 5 with insertion notches 4. A part between the hooking part 3 and the support wire fitting part 5 is used as a fixing part 7 that winds a terminal portion of a support wire a. On both ends along the longitudinal direction of the support wire fitting part of the main body 1, the insertion notches 4 that alternately insert the cable support wire a between the both end sides are arranged side by side. A guide part piece 10 having an inclined cross section is disposed at an inner edge portion of each of the insertion notches 4 located on a straight line along the longitudinal direction by striking out the inner edge portion. An inclined edge of the guide part piece 10 on the rear surface side in the striking-out direction is used as a contact edge 101 that allows the cable support wire a to locate on the straight line and contact therewith when a cable is anchored.

Description

  The present invention relates to a cable retainer used when a communication cable such as an optical fiber cable is branched from a trunk line or drawn into a building.

  One end in the longitudinal direction is used as a locking portion that is hooked to a receiving portion provided in a building or the like, and insertion notches are arranged side by side alternately on both sides along the longitudinal direction of the main part of the anchoring device made of a band-shaped metal plate. There exists a thing of the structure which has arrange | positioned the large diameter part which latches a cable of the back end part of an insertion notch on the straight line along the said longitudinal direction (for example, patent document 1). In addition to the conventional technique for directly holding and supporting the cable as described above, a structure in which a cable support line is wound around a cable holder and is passed through to support the cable integrated with the cable support line is also known. There is (for example, Patent Document 2).

JP 2003-189449 A Design Registration No. 1397497

  In the conventional structure of Patent Document 1, when a tension is applied to a cable inserted and assembled in an insertion notch during tensioning (tensioning), the cable is mainly composed of a thin metal plate. It is plastically deformed so that contact resistance works between the edge of the large diameter part and the support wire, and the retaining work is performed smoothly. Since the main body is composed of a thin metal plate, manufacturing cost and construction Although the above simplicity can be achieved, there is a problem in using it as a cable retainer having poor load resistance and thus a heavy cable. In addition, tensile stress directly acts on the cable body, which may cause cable damage. In this regard, in the prior art of Patent Document 2, since the cable support line is pulled and supported, damage to the cable due to external stress can be effectively prevented. However, the thing of patent document 2 has the problem in which the winding operation | work to the retainer of a cable support wire is complicated, and it is inferior to the efficiency of construction.

  The present invention has been devised for the purpose of solving such problems of the prior art and providing a cable retainer that achieves both workability during construction and protection performance of the cable body.

  One end in the longitudinal direction is hooked to a receiving material provided in a building or the like, and the other end is a support wire assembling portion provided with an insertion notch. The cable support lines are inserted alternately at both ends along the longitudinal direction of the support line assembly part of the flat plate-shaped main body made of a band-shaped plate, with the end part of the support line being wound between The insertion notches are juxtaposed, and the inner edge of each insertion notch is located on a straight line along the longitudinal direction, and the inner edge is ejected to provide a guide section piece having an inclined cross section. The inclined edge on the back surface side in the launching direction is configured as a contact edge where the cable support line is positioned on and in contact with the straight line when the cable is fastened.

  According to the present invention, the latching portion is hooked to a receiving material (a building, a metal for a branch line, etc.) from the other end side opposite to the one end on the latching portion side to the large diameter portion of the insertion notch. When the support line is inserted and tension is applied, the support line is assembled so as to be in contact with the contact edge formed by the inner edge portion of the insertion notch, and the support line is retained. At that time, the support line comes into contact with the inclined contact edge and comes into contact with the inner edge portion having no insertion notch, so that it is not easily affected even if it is pulled by wind pressure or the like. In addition, it is possible to ensure the retention of the support wire and to secure the protection of the cable. In addition, winding of the cable support wire around the retainer winds around the fixed portion between the latching portion and the support wire assembly portion by inserting into the insertion notch, eliminating the complicated winding work of the prior art This contributes to the efficiency of construction.

Sectional drawing of use condition. The top view of FIG. Front view. Plan view. AA line sectional view of Drawing 4. BB sectional drawing of FIG.

  The drawings show an embodiment of a cable retainer according to the present invention, in which A indicates the retainer A.

  The retainer A is composed of a flat plate-shaped main body 1 obtained by pressing a band-shaped metal plate (which may be a synthetic resin plate) that is not easily bent, and one end of the flat plate-shaped main body 1 is long along the longitudinal direction of the main body 1. A supporting wire provided with a long hole 2 and a locking portion 3 that is hooked to a metal fitting for a branch line provided in a building or an intermediate portion of an overhead wire, and provided with the locking portion 3 and insertion notches 4, 4 and 4 Notches 6 and 6 are provided between the assembly parts 5 on both sides along the longitudinal direction of the main body 1 to form the winding part 7 of the support wire a.

  Although the locking portion 3 is configured by providing the long hole 2, the point is that the hook portion may be hooked on a receiving portion provided in a building or the like, so that a so-called hook-shaped member is not inconvenient.

  The support wire assembling portion 5 is configured by alternately arranging the insertion notches 4 on both sides of the flat plate-like main body 1 along the longitudinal direction. In the embodiment, a single insertion notch 4 is arranged on one side 5 ′, and a pair of insertion notches 4, 4 are arranged on the other side, with the insertion notches 4 being arranged alternately. However, this is the minimum necessary number of insertion notches (3), and it is needless to say that a greater number of insertion notches than the above embodiment may be provided.

  Here, “alternately arranged” means that when the support line a of the cable c is relatively inserted, a plurality of one side is inserted through the other one side as in the embodiment. For example, when a plurality of insertion holes are formed on the other side through a plurality of adjacent insertion holes on one side, the plurality of adjacent ones can be inserted. The case where all or a part is inserted (inserted through a plurality of insertion holes on the other side) is also included.

  Further, the insertion notch 4 has a flat plate shape, that is, the opening edge on the side (one side or the other side) along the longitudinal direction of the support wire assembly portion 5 has an enlarged diameter to facilitate the insertion of the cable support wire a. The rear end portion is formed as a cut-out large-diameter portion 4A to be an assembly portion with the cable support line, and the large-diameter portion 4A of each insertion notch 4 is on a straight line a along the longitudinal direction of the flat plate-like main body 1 The relative movement of the cable support line at the insertion notch 4 is restricted by being arranged. That is, when the large diameter portion 4A tries to move toward the opening end side of the insertion notch 4, the diameter on the large diameter portion 4A side is larger than the opening end side, and therefore, between the large diameter portion 4A of the cable support line and the opening end. The movement toward the intermediate portion restricts the relative movement because the contact resistance with the intermediate portion is large. Therefore, it is not always necessary to provide the large diameter portion 4A at the back end portion of the insertion notch 4, but if it is provided at the back end portion as in the embodiment, the inside of the insertion cutout 4 is not reduced in the cable support line. Since it can arrange | position to a normal position only by moving relatively, it is suitable on an assembly | attachment operation | work.

  The large-diameter portion 4A of the insertion notch 4 has one side 5a of the support wire assembly portion 5 (flat plate main body 1) on the inner edge portion of the large-diameter portion 4A located on the support wire a. A guide part 10 having a sloped section is provided by partially projecting (standing) from one side 5a to the other one side 5a, and the cable support wire is provided with an inclined edge on the back side of the guide part 10 in the launch direction. The contact edge 101 is located on and in contact with the straight line.

  When the support lines are sequentially inserted into the insertion notches 4, 4, 4 and pulled, the support lines come into contact with the contact edge 101 of the guide piece 10, while the support lines are assembled between the contact edges 101, 101. In contact with the surface of the portion 5 (main body 1), the support wire assembly portion 5 is assembled in a zigzag shape, and the support wire a is retained by winding the end portion of the support wire around the winding portion 7 in this assembled state. It is fixed to the tool A.

  Further, the retaining wire A is supported by the support wire by hooking the retaining device A to a building or a split hardware using the locking portion 3 in tandem with the assembly operation of the support wire a to the retainer A. The cable retaining work can be completed by, for example, drawing the cable into the building.

  In addition, when the raw material of the flat main body 1 is a synthetic resin, the retainer A can be obtained also by injection molding.

DESCRIPTION OF SYMBOLS 1 Flat main body 3 Latch part 4 Insertion notch 5 Support line assembly part 7 Fixing part 10 Guide part piece 101 Contact edge a Cable support line

Claims (1)

  One end in the longitudinal direction is hooked to a receiving material provided in a building or the like, and the other end is a support wire assembling portion provided with an insertion notch. The cable support lines are inserted alternately at both ends along the longitudinal direction of the support line assembly part of the flat plate-shaped main body made of a band-shaped plate, with the end part of the support line being wound between The insertion notches are juxtaposed, and the inner edge of each insertion notch is located on a straight line along the longitudinal direction, and the inner edge is ejected to provide a guide section piece having an inclined cross section. A cable retainer in which an inclined edge on the back surface side in the launch direction is a contact edge where the cable support line is positioned on and in contact with the straight line when the cable is held.

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