JPS6343335Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a branch line guard that is inserted into a branch line of a utility pole or other building pole.

Conventionally, branch wire guards for electric wires have been composed of an elongated cylindrical body made of flexible synthetic resin, and a cut is made from one end of the cylindrical body to the other end, and the branch wire is inserted through the cut. A configuration is adopted in which the cut is closed after insertion.

The means for opening the above-mentioned cut may include a method in which a small hole is made on both sides of the cut in the branch line insertion cylinder, and a protrusion of a stopper is forcefully pushed into the small hole to stop the cut, or a means for stopping the cut in the circumferential direction of the branch line insertion cylinder. A method was used in which the material was wrapped tightly with a band or adhesive tape.

However, in the former case where the protrusion of the stopper is forcibly pushed in, there is no pressure on the inside when the branch line insertion tube is attached to the branch line, so the tube wall may bend or escape from the cut and the protrusion may be pushed in. It takes a lot of effort to push in, and if the protrusion is made smaller to make it easier to push in, it tends to come off more easily. Furthermore, in the method of fixing the stopper by pushing the protrusion into place, if an attempt is made to remove it for repair, the protrusion may break and become unusable. In addition, when tightening with a band or adhesive tape, the branch wire insertion cylinder is made of a highly flexible material, so it deforms inward into an irregular shape when tightened, making it difficult to tighten properly. Also, in the case of adhesive tape, it lacks aesthetic appearance, and as it is used over time, the adhesive oozes out and becomes dirty, leaving traces of the adhesive tape during repairs. This puts them at a disadvantage, such as having to exchange their bodies with other people.

The present invention was provided in order to improve the above-mentioned situation, and it is possible to easily and accurately insert a branch wire without causing insufficient tightening or opening failure caused by the deformation of the conventional branch wire insertion cylinder, and without causing a loss of aesthetic appearance. To provide a branch line guard that can attach a branch line to a cylindrical body and prevent it from opening.

The present invention will be described in detail below based on the embodiments shown in FIGS. 1 to 6.

In each figure, reference numeral 1 indicates a branch line insertion cylinder that constitutes the branch line guard body of the above-mentioned utility poles. The branch line insertion cylinder 1 is made of a flexible synthetic resin such as polyethylene, and has a cut 2 formed from one end to the other end. One end of the branch line insertion cylinder 1 is tapered (in a truncated conical shape), and a branch line holding opening 4 that opens on the center line of the cylinder is formed at the tip of the tapered part 3, and the other end is formed at the part where the cut 2 is formed. Cut diagonally to form an inclined landing surface 5.

As shown in FIG. 3, the branch line insertion cylinder 1 is attached to the branch line 7 of the utility pole 6 stretched diagonally by pushing it into the branch line 7 through the cut 2, and the inclined landing surface 5
When it lands on the ground, the cut 2 is automatically positioned on the lower side, and natural falling off from the branch line 7 is prevented.

Ribs 8 for outer sliding guides are provided on the outer surface of the branch line insertion cylinder 1 along both sides of the cut 2 formed as described above.
a or the same groove 8b is formed.

Similarly, inner sliding guide ribs 8a' or grooves 8b' are formed on the inner surface of the branch line insertion cylinder 1 along both sides of the cut 2. As a result of the above, on the left side of the cut 2, one rail on each front and back, and on the right side, one rail on each front and back are arranged parallel to the cut 2.

Figures 1 and 4 are examples in which grooves 8b and 8b' are used as inner and outer sliding guides, Figure 5 is an example in which ribs 8a and 8a' are used as inner and outer sliding guides, and Figure 6 is an example in which grooves 8b and 8b are used as inner and outer sliding guides. An example is shown in which the rib 8a and the rib 8a are used together (the front and back sides can also be reversed). Further, reference numeral 9 in the figure indicates a slit opening stopper attached to the branch line insertion cylinder 1, which cooperates with the grooves and ribs to prevent the slit 2 from opening. The cutting/opening stopper 9 has an outer retaining piece 10 and an inner retaining piece 11 which are arranged to face each other. The outer retaining piece 10 and the inner retaining piece 11 are connected to each other at their intermediate portions by a splitting piece 12 inserted into the cut 2, and the outer retaining piece 1
0 is the cut 2 due to the intervention of the interrupt piece 12 into the cut 2.
Similarly, the inner retaining piece 11 is arranged on the inner surface of the branch wire insertion tube 1 so as to straddle the cut 2.

That is, the inner retaining piece 11 and the outer retaining piece 10 are opposed to each other on the front and back surfaces of the cut, with the cylinder wall of the branch line insertion cylinder 1 interposed therebetween, and as the split piece 12 moves to intervene in the cut 2, the branch line is inserted. It moves on the outer surface and the inner surface of the cylinder 1, respectively.

At both ends of the outer retaining piece 10 made as described above, outer engaging elements 13 are slidably engaged with the outer sliding guide rib 8a or groove 8b with the cut 2 as a boundary.
will be established.

Similarly, at both ends of the inner retaining piece 11, the inner sliding guide rib 8a' or groove 8 is provided with the cut 2 as the boundary.
An inner engager 14 is provided which slides into engagement with b'.

The opening stopper 9 is slidably engaged with the inner and outer sliding guide ribs 8a, 8a' or the same grooves 8b, 8b' on both sides of the cut by the inner and outer retaining pieces 10, 11,
It is possible to slide and move while intervening into the cut 2 of 2, and the plurality of opening and closing tools 9 can be moved while sliding.
By attaching them at intervals in the longitudinal direction of the cut, the split pieces of the cut 2 are held in place at each sliding engagement portion to exhibit an opening-preventing action. The cut 2 is open at the end, and the opening stopper 9 can be inserted and removed from the cut end, and after the sliding engagement, the inner and outer engagers 13 and 14
The ribs 8a, 8 resist the force of the cut 2 to open.
a or the grooves 8b, 8b', and as a reaction, the hook is kept more firmly, and is slidably engaged without being easily released.

The above-mentioned retaining pieces 10 and 11 are preferably formed in an outwardly expanding shape as shown in the figure, so that they have bending elasticity.
The sliding engagement is achieved while the retaining pieces 10, 11 are pulled in the same direction and elastically deformed into a flat plate shape.
The force of the return of the engagement makes the engagement tighter.
It becomes difficult to remove.

The opening stopper 9 is provided with the following to facilitate its attachment and detachment operation.
A gripping piece 15 is provided on the outer retaining piece 10. Further, as shown in FIG. 7, a positioning/relief groove 16 for the opening stopper 9 is cut out at an appropriate position (at multiple places) in the cutout 2, and the cutting piece 12 of the opening stopper 9 is inserted into the relief groove 16. If the above-mentioned sliding engagement is obtained by storing the cutout 2 in the slot 12, the cutout 2 will not interfere with the cutout piece 12, and a sufficiently sealed state can be achieved. Cut 2
Since it is closed to a thickness less than the thickness of the cutting piece 12, it is prevented from deviating from the groove 16, and a so-called positioning effect can also be expected.

According to the present invention, the above-mentioned engagement can be achieved by a simple operation of pushing the branch line insertion cylinder 1 into the branch line 7 through the cut 2 and then inserting the opening stopper 9 from the upper end of the cylinder 1 into the cut 2. It is possible to prevent the opening of the cut 2 by holding it in place, and it is not only easy to fasten it, but also easy to remove it for repairs or the like.

The location and number of locking points can be set freely, and there are disadvantages such as the inconvenience of time-consuming fastening work and the inability to fasten due to missing protrusions, which is the case with conventional methods in which the locking tool is made by tightly fitting the protrusion and hole. At the same time, problems such as poor tightening and loss of aesthetic appearance due to deformation of the branch line insertion tube 1 caused by conventional tape or band tightening can also be solved.
In addition, the grooves 8b, 8b' or the ribs 8a, 8a' for the inner and outer sliding guides can be easily constructed by extrusion molding when forming the branch wire insertion cylinder 1, and if the ribs 8a, 8a' are used, the grooves 8a, 8a' can be easily formed in the two cut portions. It can also be expected to prevent deformation and improve strength.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the branch line guard according to the present invention, Fig. 2 is a perspective view of the opening stopper, and Fig. 3 is a side view of the branch line guard schematically showing how it is attached to the utility pole branch line.
Fig. 4 is a sectional view taken along the line A-A in Fig. 1, Fig. 5 is a sectional view showing another example, Fig. 6 is a sectional view showing another example, and Fig. 7 is a sectional view showing an open stop groove in the cut. FIG. 1... Branch wire insertion cylinder, 2... Cut, 7... Branch line, 8a... Rib for outer sliding guide, 8a'... Rib for inner sliding guide, 8b... Groove for outer sliding guide, 8b'... ... Inner sliding guide groove, 9... Opening tool, 10... Outer retaining piece, 11... Inner retaining piece, 12... Interrupting piece, 13... Outer engager, 14
...Inner engager.

Claims (1)

[Scope of utility model registration request] Make a cut from one end of the branch line insertion cylinder to the other end,
An outer sliding guide rib or the same groove is extended on the outer surface of the branch wire insertion cylinder along both sides of the cut, and an inner sliding guide rib or the same groove is similarly extended on the inner surface of the branch wire insertion cylinder along both sides of the cut. Further, a plurality of cut opening stoppers are attached to the branch line insertion cylinder, and each cut opening stopper includes the branch line insertion tubes connected to each other using an interrupting piece that is interposed and moved in the cut as a connecting medium. an outer retaining piece that moves on the outer surface of the body and an inner retaining piece that moves on the inner surface of the cylinder through which the branch line is inserted; Equipped with an engaging element,
Similarly, the inner retaining piece is provided with an inner engager that slides into engagement with the inner sliding guide rib or groove, and the sliding engagement between the outer engager and the inner engager prevents the opening of the cut. A branch line guard for utility poles, characterized by the following.