JPH0340017Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an electric wire cover attachment tool for attaching a sleeve-shaped electric wire cover to the outer periphery of an overhead power distribution line or the like.

"Prior Art and Its Problems" Wire covers are attached to the outer periphery of electric wires to protect overhead power distribution lines from coming into contact with trees, buildings, etc. and being damaged. Fig. 6 shows an example of a wire cover T, which is cylindrical and made entirely of a composite material of hard plastic or soft plastic, and is split radially in the length direction. In addition, a fastener F is provided in the cut S to open and close the fastener F, which is fitted in a recessed and recessed manner so as to be openable and closable.

As an example of a jig used to attach such a wire cover T to the outer periphery of a wire, a wire protection cover mounting device (Utility Model Publication No. 49-22380) shown in FIGS. 7 to 9 has been proposed. ing. To explain the usage conditions, between the wire clamping body 20 and the claw 21, between the connecting plate 22 and the detachable body 23, and between the guide body 24.
and the guide roller 25, the pressure rollers 26, 2
6', and the swinging handshake 27 is held in the grip portion 29 by the repulsive force of the spring 28.
By standing up the swing plate 30 in parallel with the wire W, the claw 21 of the clamping body 20 is fixed to the wire W to be attached. Next, the cut S of the wire cover T is directed toward the connecting plate 22, and the end thereof is inserted into the head of the detachable body 23.
When the electric wire cover T is pushed between the guide body 24 and the guide roller 25, the cut S of the electric wire cover T is separated by the separating body 23 and placed on the outside of the electric wire W to be attached. The cut S comes into close proximity by passing between the guide body 24 and the guide roller 25, and is further joined by the fastener F while passing between the pressure rollers 26 and 26'. be.

However, the wire cover T
When attached to a surface, as shown by the chain line in Fig. 7, there is a curvature with an inclination angle θ between the attached electric wire W and the electric wire cover T, so an elastic repulsion force, that is, a spring, occurs to return the curved deformed portion to its original state. Due to the backing, the cut S of the wire cover T comes off from the wire W to be attached, resulting in a problem that the intended attachment cannot be performed efficiently. Furthermore, if the inclination angle θ is reduced, it becomes necessary to maintain the cut S in an open state over a long distance, which reduces the workability of mounting.

"Purpose of the Invention" The present invention provides a wire cover mounting tool that can solve the problems in the conventional techniques and improve the mounting workability.

"Structure of the Invention" The wire cover attachment device of the present invention includes a cover guide section, an intermediate guide section, and a cover coupling section that are arranged in a mutually connected state at intervals in the length direction of the surface of the attached electric wire. The cover guide part includes a pair of mounting members that sandwich the attached electric wire, a screw that attaches the pair of mounting members to the attached electric wire by reducing the distance between them, and a screw that is formed on the side of one of the mounting members and that connects the attached electric wire. A guide groove is provided that is brought into contact with the cut of the cover in an open state and is inclined with respect to the attached electric wire and directed toward the intermediate guide section, and the intermediate guide section is formed on the surface of the attached electric wire located on the opposite side from the cover guide section. In addition to covering the wire, a guide plate is provided which contacts the cut sent out from the guide groove in an open state and faces the cover joint part, and the cover joint part is inserted between the cut wire and the wire cover placed on the wire to be attached. It is constructed by providing a pair of left and right rollers that connect these with a small interval between them, and when the wire cover is placed over the wire, the mounting member of the cover guiding part is attached to the surface of the wire,
By bringing the cut of the wire cover into contact with the guide groove in an open state, the wire cover is fed diagonally to the surface of the wire to be installed, and the intermediate guide section allows the cut to be placed in the direction opposite to the cover guiding portion. After guiding the wire to the surface of the wire and covering it, the wire cover is sandwiched between the left and right rollers to reduce the gap between cuts to guide the fastener into a bonded state, and the wire cover is placed on the surface of the wire to be covered in a sleeve shape. It is meant to be covered.

If the feeding direction of the wire cover and the direction of the wire to be attached are misaligned due to the direction of the guide groove in the cover guiding portion and the connection of the fasteners by the pair of left and right rollers of the cover connecting portion, By supporting the wire cover at three locations: the intermediate guide portion and the cover coupling portion, the wire cover is guided to the surface of the wire to be attached while maintaining its curved state, and is covered in a sleeve shape.

"Embodiment" Hereinafter, an embodiment of the wire cover attachment device of the present invention will be described with reference to FIGS. 1 to 5.

The electric wire cover attachment device in this embodiment includes a first
As shown in the figure, a cover guide part 1, an intermediate guide part 2, and a cover coupling part 3 are arranged in a mutually connected state at positions spaced apart in the length direction on the surface of the attached electric wire W. It is something.

The cover guide portion 1 is attached by fastening screws 6 with the attached electric wire W interposed between the upper attachment member 4 and the lower attachment member 5, and the both side attachment members 4, 5 are formed with opposing clamping grooves 7 and 8, and guide grooves 9 are formed on the left and right sides of the lower mounting member 5 and are directed toward the intermediate guide portion 2 at an inclination angle θ. As shown in FIG. 3, the entrance portion of the guide groove 9 is shaped like a "wedge" to open the cut S of the wire cover T.

The intermediate guide part 2 is disposed in the extending direction of the guide groove 9 of the cover guide part 1, and the support plate 10 extends in the radial direction upward and in the length direction of the attached electric wire W.
It is fixed to the upper mounting member 4 with butterfly bolts 11, and the support plate 10 is provided with a guide plate 12 that covers the upper surface of the attached electric wire W and has a width that is approximately the same as the width of the guide groove 9. .

In the cover coupling part 3, two connecting rods 13 movable in the length direction of the attached electric wire W are fixed to the cover guiding part 1 by butterfly bolts 11, and the tips of the connecting rods 13 are fixed to the cover guiding part 1. A roller support block 14 is integrally attached to the portion (the end separated from the cover guiding portion 1), and a pair of left and right rollers 15 are attached to the roller support block 14 with a gap corresponding to the outer diameter dimension of the wire cover T. so as to form
It is attached with thumbscrews 16, and a flange 17 is provided on a portion of the roller 15, on the side of the connecting rod 13, for circumscribing the outer surface of the wire cover T, as will be described later.

A case in which an electric wire cover is attached to an electric wire using the electric wire cover attaching tool having such a configuration will be described below.

First, at the position indicated by the chain line A-A in FIG. 1, the electric wire cover T, which is cylindrical as shown in FIG. Push it in while guiding it to 9.
If you perform the following pushing operations in sequence, the chain line B in Figure 1 will appear.
It is attached to the attached electric wire W through the process shown by -B to chain line GG. The process of attaching the electric wire cover T to the attached electric wire W in this way will be explained separately for each position.

``Position of dashed line B-B in Figure 1'' When the cut S of the wire cover T is fully open and supported by both guide grooves 9 as shown in Figure 5B, the elastic repulsive force Therefore, the cut S slides while strongly contacting both guide grooves 9. Furthermore, when the wire cover T is curved as shown by the chain line in FIG. 1, the repulsive force causes the cut S to move in the direction of the arrow B in FIG. movement is inhibited by contact with.

"Position of chain line C-C in FIG. 1" At the position shown in FIG. Since it is guided in a shape, it does not come into contact with the surface of the attached electric wire W.

``Position of chain line D-D in Figure 1'' As shown in Figure 5D, cut S of the wire cover T.
When it rides on the guide plate 12, an effect occurs in which the cut S slides in the direction of narrowing the interval due to elastic repulsive force.
It is pressed to about the thickness of the support plate 10, and the first
When the wire cover T is curved as shown by the chain line in the figure, its repulsive force causes the inner surface near the cut S to move in the direction of contacting the surface of the guide plate 12; is suppressed by contact with

``Position of chain line E-E in Figure 1'' As shown in Figure 5 E, cut S of the wire cover T.
When it comes off from the guide plate 12, the interval g between the cuts S is narrowed due to the elastic repulsion force.

"Position of chain line FF in FIG. 1" As shown in FIG. 5F, when the electric wire cover T enters between the left and right pair of rollers 15, the fasteners F are in a connected state. In addition, when the wire cover T is in a curved state, as shown by the chain line in Figure 1, its elastic repulsive force causes the outer periphery near the cut S to move upward as shown by the arrow F in Figure 5. However, the flange 17 of the roller 15 restrains the movement. Therefore, even if the wire cover T is in a curved state, by supporting it at three locations indicated by the chain line B-B, chain line D-D, and chain line F-F, the curved state can be prevented from changing. That's what I do.

"Position of dashed line GG in FIG. 1" When the electric wire cover T is removed from the roller 15, no external force is applied to the cut S, so that the fastener F is connected and becomes stable.

In addition, by loosening the thumbscrew 16, both side mounting members 4,
5 along the connecting rod 13, and the intermediate guide section 2
By adjusting the distance between the wire cover T and the cover coupling portion 3, the curved state of the wire cover T can be changed, and it can be used depending on the specifications of the wire cover T.

"Effects of the Invention" As explained above, according to the wire cover attachment device according to the present invention, the cover guide portions and the intermediate Since it has a guide part and a cover joint part, it has the following effects.

When putting a wire cover on a wire, the open cut is inserted into the guide groove and fed diagonally to the wire to be installed, and after passing through the intermediate guide section, the fastener is joined by a pair of left and right rollers. Since the electric wire cover is placed over the surface of the electric wire to be attached in a sleeve-like manner, it is possible to efficiently attach the electric wire cover to the electric wire to be attached and to cut and connect the electric wire cover.

The cut is sent by passing the wire cover from the guide groove of the cover guide part to the guide plate, and since the guide plate covers the surface of the wire to be attached, the surface of the wire may be damaged during the work of attaching the wire cover. Never.

The electric wire cover maintained its curved state through a combination of guiding the cut by the guide groove of the cover guiding part, keeping the cut open by the intermediate guide part, and joining the fasteners by the pair of left and right rollers in the cover joining part. The wire cover is guided to the surface of the wire and is covered like a sleeve, which inevitably curves when attached to the wire.The wire cover can be securely and quickly attached to the wire while preventing it from coming off the cut. can do.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the wire cover attachment device according to the present invention, with Figure 1 being a front view and Figure 2 being a front view.
The figure is a plan view, Figure 3 is a bottom view, Figure 4 is a left side view, Figure 5 is an explanatory diagram of the installation process in a wire cover according to an embodiment of the present invention, and Figure 6 is an illustration to which the present invention is applied. FIGS. 7 to 9 are a perspective view showing an example of an electric wire cover, a plan view showing a conventional example of the mounting tool, a perspective view of a part of the structure, and a front view of the main part. W...Wire to be attached, T...Wire cover, S...
Cutting, F... Fastener, 1... Cover guiding part,
2... Intermediate guide part, 3... Cover coupling part, 4...
Upper mounting member, 5... Lower mounting member, 9... Guide groove, 10... Support plate, 12... Guide plate, 15...
Laura, 17...Tsubabe.

Claims (1)

[Scope of utility model registration request] A wire cover attachment device for attaching a wire cover T having a cut S that can be opened and closed by a fastener F to the outer periphery of the wire using the cut S, the wire cover mounting tool being used in the length direction of the surface of the wire W to be attached. The cover guide part 1 has a cover guide part 1, an intermediate guide part 2, and a cover coupling part 3, which are arranged in a mutually connected state with an interval between them. 5, and a screw 6 for attaching the pair of attachment members 4 and 5 to the attached electric wire W by reducing the interval between them.
and a guide groove 9 formed on the side of one mounting member 5 and brought into contact with the cut W of the wire cover T in an open state, inclined with respect to the attached wire W and directed toward the intermediate guide portion 2, The intermediate guide part 2 is the cover guide part 1
A guide plate 12 is provided to cover the surface of the attached electric wire W located on the opposite side of the wire W, and to contact the cut S sent out from the guide groove 9 in an open state and facing the cover coupling part 3. Part 3 is an electric wire cover attachment device characterized in that it includes a pair of left and right rollers 15 that sandwich the electric wire cover T placed over the electric wire W to be attached and connect the cuts S by reducing the interval between them. .