JPS6268392A - Changing-over method for telephone line by cutting/ connecting tool - Google Patents

Abstract

PURPOSE:To shorten the changing-over time of a large quantity of the telephone line, to minimize the number of a worker and to secure the safety by fitting a pulley and a tow line at the cutting/connecting tool and changing them over by the tow line operation. CONSTITUTION:At the upper step, the middle step and the lower step of a wiring board 1 frame, cutting/connecting tools 31-33 are respectively hung to the lowest position of respective steps by a tow line 34 and a pulley 35. To the rear side of a short cutter 45 provided between terminals 43 and 44 of the telephone line, through a disconnection string 46, both edge parts are fixed to the wiring board, and the disconnection string 46 is passed through to the sealing 41 of the cutting/connecting tools 31-33. When the worker 37 pulls out the tow line 34, respective cutting connecting tools 31-33 are shifted in the upper direction, the disconnection string 46 is pulled out to the front side and cut by the short cutter 45. On the other hand, when both edge parts of an insulating string 49 provided between terminals 47 and 48 are fixed to the wiring board, passed through to the sealing 41 of the cutting connecting tools 31-33 and the worker 37 pulls out the tow line 34, the cutting connecting tools 31-33 are shifted in the upper direction, the insulating string 49 is drawn and the section between the terminals 47 and 48 is connected.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a method for switching and connecting a large number of telephone lines from a conventional telephone exchange to a newly installed telephone exchange using a disconnecting and connecting tool.

[Technical background of the invention and its problems]

Traditionally, switching from an old telephone exchange to a newly installed telephone exchange has been done entirely manually. That is, in FIG. 6, reference numeral 11 represents one rack of a wiring board that accommodates telephone lines, and is the front surface of the rack that has 6,000 telephone lines. Conventionally, operations were performed manually at the front of the rack.
For operations at high places, scaffolding 12 was installed, and 4
A total of 8 personnel (13), 4 at the top and 4 at the bottom, were working on disconnecting and connecting.

FIG. 7 shows conventional manual cutting, in which the string 14 is cut by hand 1.
By holding and pulling the short cutter 16 made of aluminum foil, the terminals 17 and 18 are cut off.

FIG. 8 shows a conventional manual connection in which the terminals 19 and 20 are connected by holding the Teflon tape 21 interposed between the spring terminals 19 and 20 with a hand 22 and pulling it out.

However, there are 20 columns of 1 column (100 lines), which form three levels: upper, middle, and lower, and 6000 lines constitute one distribution board.

According to conventional manual operation, the time required to switch one rack is 7 to 10 minutes.
It takes about 10 minutes, which is undesirable as it takes too much time in terms of providing communication services. Furthermore, in order to shorten the time, it is necessary to employ more operating personnel. On the other hand, when operating in a space with narrow spaces, there is insufficient scaffolding and there is concern about the safety of the workers.

As described above, conventional methods have drawbacks in terms of switching time, number of workers, and safety.

[Purpose of the invention]

In order to solve the above-mentioned drawbacks, the present invention has been developed to shorten the switching time of a large number of telephone lines, reduce the number of workers, and ensure safety by switching the telephone lines using the disconnecting and connecting tool. The purpose is to provide a switching method.

[Summary of the invention]

Conventional telephone line disconnection/connection operations were performed mostly manually, but the present invention has a disconnection/connection tool equipped with a pulley and a tow rope, and can switch a large number of telephone lines at once through a pulling operation. This is what made it possible.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows one embodiment of the present invention, and shows one distribution frame housing telephone lines, with one column (IOO line 6).
) is 20F1 column, this is the top.

There are three levels, middle and lower, and 6,000 circuits make up one distribution board.

Each of the upper, middle, and lower tiers of one distribution board has cutting and connecting tools, V 1 , , ? 2 and 33 are suspended at the lowest position of each stage by a tow rope 34 and a pulley 35. That is, the lower cutting and connecting tool 33 is the middle cutting and connecting tool 32.
The cutting and connecting tool 32 in the middle is suspended by a tow rope 34.
is suspended from the upper cutting and connecting tool 31 by a tow rope 34, and a pulley 35 is provided on the upper part of the upper cutting and connecting tool 31.
It is suspended by a tow rope 34 whose one end is fixed to the upper part 36 of the distribution board, and the other end of this tow rope 34 is operated by a person 37 via a pulley 35 provided at the bottom of the distribution board. be held by The cutting and connecting tools 31, 32, and 33 mentioned above are constructed as shown in Fig. 2 and Figs. 3 (a), (b), and (c). In Figure □, 38 is the main body of the tool, 39 is an L-shaped auxiliary plate for installing rollers, 40 is a roller, 41 is a seal, and 42 is a hole for attaching a towline.

Next, switching (disconnection or connection) of the telephone line in the distribution board will be described.

Figure 4 shows the cutting (
short cutter 45 made of aluminum foil installed between terminals 43 and 44 of the telephone line on the distribution board.
An operating member such as a disconnection string 46 is passed through the back side of the short cutter 45, and both ends of the disconnection cord 46 are fixed to the wiring board.
, 32 and 33, the broken cord 46 is passed through the sealing 41. In this case, install it in each required column. In this state, each cutting and connecting tool 31 , 32 , 3.9 moves upward by pulling the tow rope 34 held by the personnel 37, so that the broken string 46 is placed on the front side (cutting and connecting tool side). Short cutter 4
5 is cut.

On the other hand, FIG. 5 shows connection (switching) using cutting and connecting tools 31, 32, and 33. In this case as well, in the same manner as in the case of cutting, both ends of the operating member provided between the telephone line terminals 47 and 48 of the distribution board, such as an insulating string 49 such as a Teflon tube, are fixed to the distribution board, and further, The insulating string 49 is threaded through the sealing 41 of the disconnecting and connecting tool 31, 32, 33 suspended in the distribution board. In this state, the personnel 37 pulls the towline 34 to connect the cutting and connecting tools 31 , ,
? 2 and 33 move upward, the insulating string 49 is pulled out, and the terminals 47 and 48 are connected.

〔Effect of the invention〕

As explained above, the method for switching a large number of telephone lines using the disconnection/connection tool of the present invention is as follows: A. Switching can be done in a short time (it takes less than 2 minutes instead of the conventional 7 to 10 minutes) B1. It is possible to operate with approximately 1/3 of the number of staff (compared to 3 people per rack compared to 8 to 9 people in the past), resulting in a significant reduction in personnel costs.

In addition, it can be operated in particularly narrow spaces, does not require the installation of scaffolding, and can ensure sufficient safety.

There are advantages such as

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a perspective view showing an example of the cutting and connecting tool according to the present invention, and FIG.
) is also a back view, Figure 3(b) is also a side view, and Figure 3(b) is also a side view.
Figure (c) is a top view, Figures 4 and 5 are diagrams for explaining an example of the operation of the operating member according to the present invention, and Figures 6 to 8 illustrate the conventional telephone line switching method. It is a figure for explaining. ,i I, ,? 2, ? 3... Cutting and connecting tool, 3a... Pull rope, 35... Pulley, 38...
Tool body, 40... roller, 4I... sealing,
4,? , 44, 47. 48... Telephone line terminal, 46... Broken cord, 49
...Insulated string. Applicant's agent Patent attorney Takehiko Suzue Figure 7 Figure 8

Claims (1)

[Claims] A disconnecting and connecting tool is movable upwards in front of the distribution frame and suspended using a tow rope and a pulley, and a disconnection cord or insulating string for cutting or connecting the telephone line of the distribution frame is passed through the ceiling of the disconnecting and connecting device. A method for switching a telephone line using a disconnection and connection tool, characterized in that the disconnection cord or insulated cord is pulled to disconnect or connect the telephone line while moving the disconnection and connection tool upward by pulling the tow rope.