JPH0119549Y2 - - Google Patents

Description

[Detailed explanation of the invention] (1) Technical field of the invention The invention relates to a retaining device used when pulling in outdoor communication lines such as telephone lines, and in particular, a method for connecting the communication line itself without using a messenger wire. This relates to things that can be directly detained.

(2) Prior art and its problems Conventionally, regarding this type of communication line anchor, the first
As shown in the figure, a communication line t is meandered and wound around a plurality of winding pillars b, c, and d provided on the upper surface of pedestal a in an S-shape from an introduction part e, and then from an end of pedestal a. It had a structure in which the communication line t was wound twice around the neck g of the protruding edge f projecting forward and held there. According to this,
The pulling force cannot be exerted unless the communication line t is tightly wrapped around the neck g, and the tensile load of the lead-in wire is borne by the wrapped part due to the slip of the wrapped part, so the coating deteriorates from the wrapped part. This has the disadvantage of causing insulation failure. In order to eliminate the above drawbacks, it is necessary to use a 3-core wire containing a messenger wire instead of the communication wire itself.
The current situation was to try to tie it up by winding up the messenger wire. In the case of messenger wires as well, coating deterioration occurs from the wound portion, causing rust. Furthermore, it is necessary to forcefully roll in the neck g, and the flange f is too tight at the neck g.
There was a risk of it breaking.

Therefore, a restraining device as shown in FIG. 1B is provided. This involves inserting a communication line t into a groove h of a protrusion f provided on the upper surface of a pedestal a, and then bending it extremely to hold it there. Although this type of product prevents the above-mentioned wrapping work and breakage from the neck g, it has the disadvantage that the coating breaks from the bending part because it bears the tensile load at the bending part, causing insulation failure. It had not been resolved. Therefore, it was necessary to use a messenger line instead of the communication line itself.

Furthermore, as a retainer for the communication line itself, the communication line is inserted into an outer frame whose width is narrow in the tension direction, and a core whose width is narrowed in the tension direction is fitted into the outer frame. There are structures that are stretched to create a wedge effect. However, the structure was complicated and expensive.

(3) Purpose of the invention The present invention was devised in view of the above-mentioned drawbacks of the conventional technology.
The purpose of this is to improve the workability of mooring without causing insulation failure.

(4) Summary of the invention The feature of the invention is that the retaining strut has a height that allows the communication line to be wound once in a spiral from the bottom to the top approximately in the longitudinal center of the base with the peripheral surface as a friction surface. An end face forming a space between which the lower communication wire is sandwiched and a stepped portion through which the upper communication wire is passed is provided on one side in the longitudinal direction of the base adjacent to the anchoring column. A through hole is formed in the step part in the width direction of the holding column and the base, and the locking ring has an approximately L-shaped through hole insertion part and a locking part at the inverted U-shaped tip, and can be engaged from the vertical direction of the base. The retaining ring is formed vertically long so that the through-hole insertion part and the locking part are inserted and prevented from coming off by rotating the locking ring in the longitudinal direction of the base.

(5) Example of the invention In Figures 2 and 3, 1 is a synthetic resin;
The base of the retainer body is molded from an insulating material such as rubber, and the base 1 has a rectangular shape, and a cylindrical column with a diameter slightly smaller than the width of the base 1 is located approximately at the center of the upper surface in the length direction. A retaining column 2 of the shape is integrally erected,
A collar portion 3 having a larger diameter than this for preventing slipping out is integrally provided on the upper portion thereof. The retaining column 2 has a circumferential surface with a height approximately twice the diameter of the communication line, and is provided with a friction surface 2a over substantially the entire circumferential surface. As shown in FIG. 5, the friction surface 2a has a serration shape in which a large number of inverted V-shaped protrusions 2a' are arranged in series.

Furthermore, on one side of the retaining strut 2, there are integrally erected retaining struts 4 which are approximately elliptical in shape and have a diameter smaller than the width of the base 1 at appropriate intervals, and in the width direction of the upper part, the retaining struts 4 have a diameter larger than that. A collar portion 5 is integrally provided. A substantially cylindrical auxiliary column 6 having a diameter approximately half that of the retaining column 2 is integrally erected at one end in the longitudinal direction of the base 1 at an appropriate distance from the holding column 4, and is provided in the same manner as above. A collar portion 7 having a diameter larger than that of the auxiliary support column 6 is provided at the upper portion. Further, at the other end in the length direction of the base 1, a substantially boat-shaped guide column 8 is integrally erected with the retaining column 2 at an appropriate interval, and at the upper part, a wider flange 9 is provided. is provided, and this collar portion 9 forms a communication line introduction portion 10 between the guide columns 8. The guide column 8 and the auxiliary column 6 are formed to have a small diameter so that both widths of the base 1 serve to prevent them from coming off.

In addition, as shown in FIG. 3, the base 1 includes:
A stepped portion 12 is formed. The stepped portion 12 is the base 1
It is set higher than the part where the holding column 4 is located in the length direction of the step part 12, and the end face 12a of the stepped part 12
A gap 11 is formed between the retaining column 2 and the retaining column 2. As a result, the anchoring column 2, the holding column 4 and the auxiliary column 6 are set at the same height, while the guide column 8 has approximately half their height.

Furthermore, a through hole 13 is communicated with the stepped portion 12 of the base 1 in the width direction, and a pair of protrusions 14 are provided on both sides of one end of the base 1 vertically. The through hole 13 is provided long in the vertical direction of the base 1 when viewed from the side. That is, through hole 13
has approximately the same dimensions as the locking portion 18 described below in the vertical direction, and is shorter and shorter than the locking portion 18 in the length direction of the base 1. The projections 14, 14 preferably cause the upper projection of the base 1 to protrude slightly lower.

However, reference numeral 15 is a locking ring for hooking the above-mentioned retaining device main body to a hook, etc., and its shape is approximately an inverted U-shape as shown in FIG. The tip is approximately L through the pieces 16, 16.
It consists of through-hole insertion portions 17, 17 and locking portions 18, 18 formed in a letter shape. Said long piece part 16,1
6 is configured such that the opposing positions of the through-hole insertion portions 17, 17 are shifted and overlapped alternately. Long piece part 1
6 and 16 can each be biased inward.

When attaching the retainer main body, as shown in FIG. 4B, push out the long pieces 16, 16 of the locking ring 15 and position the locking ring 15 vertically with respect to the base 1. , the locking portion 18,1 is attached to the length dimension of the through hole 13.
Match the lengths of 8. Next, each through-hole insertion part 17, 17 is inserted into the through-hole 13 from both sides, and when each locking part 18, 18 protrudes from both sides of the base 1, the locking ring 15 is rotated clockwise in the figure. If the long pieces 16, 16 are rotated a little further, the long pieces 16, 16 come into contact with the upper protrusion 14, but if they are rotated a little more, the long pieces 16, 16 are fixed and held between the upper and lower protrusions 14, 14. In this holding position, the locking parts 18 are locked on both sides of the base 1, and the short and short dimensions of the through hole 13 prevent it from coming off.

Next, the effect will be explained.

The communication line 19 is introduced from the introduction part 10 of the guide column 8. Due to the ship shape of the guide column 8, smooth and reliable introduction guidance is performed. After introduction, when the wire is wound once around the anchoring post 2, the coating of the communication wire 19 slides against the friction surface 2a to increase resistance, and the wound portion is held in the gap 11. The communication line 19 is wound up spirally from the bottom to the top of the retention column 2 and is located at the same height as the holding column 4 and the auxiliary column 6. Therefore, the communication line 19 is connected to the holding column 4
After meandering through the auxiliary struts 6, it is pulled out in a desired direction.

According to this embodiment, the friction surface 2a is provided on the retaining column 2 which has a large diameter and is located at the center of the substrate 1.
The communication line 19 can be restrained without difficulty, and the tensile load can be borne by the friction surface 2a. Moreover, since clamping is performed in the gap 11 in addition to this,
Reliable detention will be achieved. In addition, since the retaining ring 15 is attached to the retainer body, the retainer body and the retainer ring are integrally molded as in the past, so the retainer ring is located within the mold during manufacturing. No work is required and there is no risk of mold damage. Moreover, since it is inserted from the vertical direction and cannot be removed from the anchoring direction, safe hanging can be performed.

(6) Modification of the invention As shown in FIG. 6, the retaining column 2 may be provided with a knurled friction surface 2b. In this case, good frictional force can be exerted also in the spiral direction of winding.

Furthermore, although the friction surface is formed on the outer circumferential surface of the retaining strut 2, it is not limited thereto, and may be formed on other holding struts 4, auxiliary struts 6, guide struts 8, etc.

(7) Effects of the invention According to the invention, since the communication line is wound up and tied to the tie-down column whose circumferential surface is a friction surface, the tensile load of the communication line is shared by the entire circumference of the tie-down column.
As a result, compared to methods such as pulling through,
There is little slack in the communication line due to deterioration of the anchoring device or communication line coating during long-term use, and the simple structure allows for reliable anchoring.
The pinching action prevents twisting of the communication line and allows for more reliable anchoring. In addition, since the through hole is long in the vertical direction of the base when viewed from the side of the base,
The locking ring is engaged from the vertical direction of the base and rotated in the longitudinal direction of the base to prevent it from coming off, so the locking ring will not come off the base and can be hung safely. It is something. In addition, since the stepped portions are used to provide the sandwiching gaps and through holes, the overall structure can be made compact and simple.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
Figure A is a perspective view of a conventional example, Figure B is a front view of another conventional example, Figure 2 is a front view of an embodiment of the communication line fastener according to the present invention, and Figure 3 is a front view of another conventional example. 4A is a front view of the locking ring, FIG. 4B is a side view showing the same mounting state, FIG. FIG. 3 is a side view of the embodiment of FIG. 1... Base, 2, 4, 6, 8... Pillar, 3,
5, 7, 9... Flange portion, 2a, 2b... Friction surface, 1
9...Communication line.

Claims (1)

[Claims for Utility Model Registration] A communication line fastening device consisting of a base, a plurality of supports that are integrally provided on the top surface of the base and have a flange on the top, and a locking ring that is attached to the base. In this case, a restraining column is integrally erected approximately in the longitudinal center of the base with its peripheral surface as a friction surface at a height that allows the communication line to be wound once in a spiral from the bottom to the top. On one side in the length direction of the adjacent base, a stepped portion is formed that has an end surface that forms a space between which the lower communication wire is sandwiched and a height that allows the upper communication wire to be passed through, and the stepped portion has a holding support column. is integrally projected, and a through hole is communicated in the width direction of the base, and the locking ring is formed in an inverted U shape.
A substantially L-shaped through-hole insertion part and a locking part are provided at the tip of the shape. A communication line retainer characterized by being formed vertically long so as to be prevented from coming off by rotating a retaining ring in the lengthwise direction of the base.