JP3039022U - Drop wire retainer - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To prevent damage to a building by preventing the fixing metal fitting from coming off the building by relaxing the pulling force applied to the fixing metal fitting for installing a drop wire provided on the outer wall or the like of the building. . SOLUTION: Each of a drop wire attachment member 1 attached to a tip end of a lead wire from a utility pole and a fixture fitting attachment member 2 attached to a fixture fixed to a building are slidably connected in a pulling direction of the lead wire. A member that restricts the sliding of the other member to at least one of the drop wire attachment member 1 and the fixing metal fitting attachment member 2 and releases the restriction when a pulling force of a predetermined amount or more is applied from the lead wire. Provided is a retainer for a service wire provided with a stopper 4a.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a retainer used for attaching the tip of a lead wire from a telephone pole to an outer wall of a building or an eaves during power distribution work to the building.

[0002]

[Problems to be solved by conventional techniques and devices]

 Usually, in this type of power distribution work, the tip of the service wire from the utility pole is once attached to a fixing metal fitting provided on the outer wall of the building, and then the power distribution line in the building is connected to this service wire.

By the way, when a service line with a high vehicle is caught in a service line extending between a utility pole and a building, or a disaster such as an earthquake occurs and the utility line is tilted, the service line is pulled, There was a problem that the pulling force causes the fixing brackets to come off the outer wall of the building or the like and damage the building.

Therefore, an object of the present invention is to prevent the damage of the building by relaxing the tensile force applied to the fixing metal fitting so that the fixing metal fitting does not come off the building.

[0005]

[Means for Solving the Problems]

 In order to solve such a problem, in the present invention, each of the service wire attachment member attached to the tip of the service wire from the utility pole and the fixed metal fitting attachment member attached to the fixed metal fitting fixed to the building are pulled by the pulling wire. Slidably in the same direction, restricting the sliding of the other part of at least one of the drop wire attachment member and the fixing metal fitting attachment member, and The company provided a retainer for a drop wire provided with a locking portion for releasing the regulation.

[0006] When the service wire is attached to the fixing metal fitting via such a retainer, the service wire mounting member and the fixing metal fitting mounting member are connected to the utility pole and the building in a state in which the slide is restricted by the locking portions. It will be handed over during. In this state, if the drop wire is pulled and a pulling force greater than a predetermined value is applied between the drop wire mounting member and the fixing metal fitting mounting member, the restriction by the locking portion is released and each member slides. The pulling force on the

[0007]

[Embodiment of the invention]

 The service wire retainer A shown in FIG. 1 includes a service wire attachment member 1 made of a metal plate and a ring-shaped fixing metal fitting member 2 attached to a fixing metal fixture fixed to a building.

In the lead-in wire mounting member 1, both side edges in the length direction are bent to stand up, and on each of the standing side edges, elongated holes 3 and 3 are formed along the side edges. . Two engaging portions 4a and 4b, which are arranged along the elongated holes 3 and 3, are provided by cutting and raising in the center portion in the end edge direction of the service wire attachment member 1. A circular hole 5 for connecting the service wire is formed at one end of the service wire attachment member 1.

The fixing metal fitting mounting member 2 is formed in an annular shape by bending a metal shaft member at the central portion and engaging hook portions 6 formed at both end portions with each other. The hook portions 6, 6 are firmly engaged with each other due to the elasticity of the shaft member. The fixing metal fitting mounting member 2 is slidably fitted into the long holes 3 and 3 of the service wire mounting member 1.

As shown in FIG. 2, the retainer A has an insulator I at the tip of a drop wire C attached to a circular hole 5 of a drop wire attachment member 1 and a fixture member attachment member 2 fixed to an outer wall W of a building. Used by attaching to the fixing bracket F. In this state, the inside of the fixing metal fitting member 2 comes into contact with the locking portion 4a on the service wire side of the service wire mounting member 1, so that sliding of the fixing metal fitting member 2 in the long holes 3 and 3 is prevented. In this way, by attaching the leading end of the drop wire C to the fixing bracket F of the building through the attachment fitting A, as shown in FIG. 3, the drop wire C is laid across between the utility pole P and the building. The service line C is connected to the distribution line of the building.

In addition, the attachment of the fixing metal fitting mounting member 2 to the fixing metal fitting F is performed by pressing the fixing metal fitting mounting material 2 against the elasticity of the shaft material, and temporarily disengaging the hook portions 6, 6. This is done by inserting the fixing metal fitting member 2 into the mounting hole of the fixing metal fitting, and then engaging the hook portions 6, 6 again.

[0012] The service wire C thus extended is caught between the service wire mounting member 1 and the fixing tool mounting member 2 by being caught by a hood of a truck or by a utility pole being tilted when a disaster such as an earthquake occurs. When a pulling force greater than a predetermined value is applied to, the locking portion 4a on the lead-in wire side falls due to the force from the fixing metal fitting mounting member 2, and the fixing metal fitting mounting member 2 rides over this locking portion 4a to form a long hole. Slide along 3 and 3. Therefore, the pulling force applied to the fixed metal fitting F is relaxed, so that the fixing metal fitting F cannot be disengaged from the outer wall W.

In addition, the fixed metal fitting mounting member 2 that slides due to the pulling force comes into contact with the locking portion 4b on the fixed metal fitting side of the drop wire mounting member 1, and the sliding stops. Then, when the pulling force is again generated in the service wire C, the locking portion 4b is also laid down and the fixing metal fitting mounting member 2 slides in the long holes 3 and 3, so that the fixing metal fitting F is covered. The pulling force will be relieved.

When the fixing metal fitting mounting member 2 is in contact with the locking metal fitting side locking portion 4b of the service wire mounting member 1, the above-mentioned accident occurs without noticing, or the service wire mounting Since it is possible to determine that the member 1 is deteriorated, it is possible to replace the detent tool A at an early stage.

[0015]

[Effect] As described above, the use of the drop wire retainer according to the present invention makes it possible to reduce the pulling force applied to the fixing metal fittings provided on the outer wall of the building or the eaves, so that the fixing metal fitting can be removed from the building. The building will not be damaged and the service line will not fall off.

Also, by providing a plurality of locking portions, it is possible to confirm the locked state of the drop wire mounting member and the fixing metal fitting mounting member, and to determine the time to replace the pull-fastener.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a retainer for a service wire according to the present invention.

FIG. 2 is a partially cutaway side view showing the same usage state as above.

FIG. 3 is a diagram showing a state in which the building is attached to an outer wall of the building.

FIG. 4 is a partially cutaway side view of the same showing a state where the fixing member mounting member has slid.

[Explanation of symbols]

 A Draw wire retainer C Draw wire F Fixing bracket I Insulator W Outer wall 1 Draw wire attaching member 2 Fixing fitting attaching member 3 Long holes 4a, 4b Locking part 5 Circular hole 6 Hook part

Claims (3)

[Utility model registration claims] 1. A drop wire attachment member attached to a tip of a drop wire from a utility pole and a fixture fitting member attached to a fixture fixed to a building are slidably connected in a pulling direction of the lead wire, At least one of these drop wire mounting members and fixing bracket mounting members,
A pull-in retainer for a drop-in wire provided with a locking portion that restricts the slide of the other member and that releases the restriction when a pulling force of a predetermined amount or more is applied from the drop-in wire. 2. The drop wire attachment member comprises a plate extending in the pulling direction of the drop wire while being attached to the drop wire, and the fixing metal fitting attachment member is slidably fitted in an elongated hole formed in the plate. 2. The retractor for a service wire according to claim 1, comprising a ring, wherein the locking portion is formed by cutting and raising a part of a plate, and the inside of the ring is brought into contact with the locking portion. 3. The service wire retainer according to claim 2, wherein a plurality of the locking portions are formed side by side along the longitudinal direction of the long hole of the plate.