JPS62296720A - Telephone protector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field j] The present invention relates to a telephone protector provided at an outlet for an outdoor line of a telephone.

[Background Art] Generally, the signal voltage of telephone lines is low voltage and poses almost no danger to the human body, but if a power line comes into contact with a telephone line or there is a lightning strike, abnormal voltage may be superimposed on the telephone line. This can pose a danger not only to telephone equipment but also to humans. Therefore, a protector is installed at the entrance of the outdoor line to cut off the continuous inflow of high voltage and discharge it to the ground. Figure 3 shows an example of the installation of protector A when a telephone line is drawn into the main house The connected outdoor IC+ is drawn into the main house X via the main house protector A, and is connected to the indoor line t.
2 to the main MJ communication device M. In addition, the main communication device M and the telephone [T, in the main house ．． and an overhead wiring Q4, and separate building wiring protectors A are provided at the entrances of the overhead wiring Mα4 of the main house X and the separate building Y, respectively.

Figure 4(a) shows the main home (subscriber) protector A, Figure 4(a)
b) is a perspective view showing the configuration of a separate wiring protector A;
An outdoor #i connection terminal 6, an indoor line connection terminal 7, a ground wire connection terminal 8 and an upstream safety element 9 are provided on a base 21a protruding from the mounting base 21, and covered with a waterproof cover 22. Iα1. Indoor #it2 and earth Rη are introduced through a wire insertion hole 23 of a mounting base 21 equipped with a rubber bushing, and connected to each connection I & terminal 6, 7.8. In addition, the safety element 9 is a protector cartridge or a detonator, and when a high voltage is superimposed on the outdoor line, this high voltage is grounded to the earth via the earth aα, thereby preventing a high voltage failure. It looks like this.

FIG. 5 shows an example of installing the protector A on the wall W of the entrance. First, a wooden mounting plate 25 is fixed to the wall W of the building with wood screws 26, and the protector A is attached to the mounting plate 25. When installed, # outside of protector A appears! The outdoor wire α, which is connected to the connection terminal 6, is fixed to the mounting plate 25 using the wiring holding bracket 27, and the indoor line Ra2, which is connected to the internal line connection terminal 7, is connected to the vinyl chloride pipe 28 that penetrates the wall W. He was pulled indoors through the vehicle. Further, the ground #iα, which has been subjected to a predetermined grounding process, is connected to the ground wire connection terminal 8 by outdoor wiring.

However, in such a conventional example, the protector A
In addition to requiring a large mounting plate 25 to attach the
Outdoor #Iα1, indoor #la2, ground wire α, etc. are largely exposed, and a pipe 28 for drawing indoor wire α2 is installed.
There was a problem in that the wall W at the penetrating portion became unsightly, detracting from the beauty of the building. Furthermore, since the ground #ls is exposed as an outdoor wiring, the ground M 5 is easily damaged, and if this ground wire α is broken, there is a problem that the function of the protector A is impaired.

[Objective of the Invention] The present invention has been made in view of the above points, and its purpose is to be able to install the building without spoiling its aesthetic appearance, to be easy to construct, and to prevent disconnection of the ground wire. An object of the present invention is to provide a telephone safety device that can prevent inconveniences caused by.

[Disclosure of the Invention 1 (Embodiment 1) Fig. 1 shows an embodiment of the present invention, in which a base 4 is attached to a wiring device mounting frame 2 having an opening 1 in the center via a waterproof gasket 3, and the above-mentioned A wire insertion hole 5 is drilled in the base 4, and an outdoor line connection terminal 6, an indoor line connection terminal 7, a 7-south line connection terminal 8, and a safety element 9 are provided, and the base 4 is covered with an outdoor line waterproof cover 10. The base 4 and the waterproof cover 10 have cutouts 19a and 19b for introducing pressure external wires.
is provided. Here, in the embodiment, waterproof cover 1
0 and one end of the base 4 are connected with a hinge 11, the waterproof cover 10 can be rotated open and closed, and a key 12 provided on the waterproof cover 10 and a key receiver 13 provided on the base 4 Lock mechanism disease is formed. Also, a cord clip 1 for fixing the outdoor wire α1 is attached to the base 4.
4 is provided, and the base 4 is screwed to the wiring equipment mounting frame 2 with a mounting screw 15 that is screwed into a screw hole 16 of the wiring container mounting frame 2. Furthermore, the wiring container attachment frame 2 is provided with a box attachment screw insertion hole 17 for attachment to the embedded box 3 and a scissor fitting attachment hole 18.

Now, when installing the safety device A, for example, a built-in box (such as a switch box) installed on the wall W (
(not shown), and the base 4 is attached to this wiring equipment attachment frame 2 with attachment screws 15.

Next, connect the indoor line t2 to the indoor line connection terminal 7, connect the ground line section to the ground line connection terminal 8, and connect the indoor #iη2 upstream ground line t to the indoor line through the wire insertion hole 5. Pull it in and do the specified wiring. Next, after fixing the introduced outdoor MQ+ with a cord clip, it is connected to the outdoor line connection terminal 0.1, and the waterproof cover 10 is covered and locked to complete the installation.

In this case, the indoor wire α2 and the ground wire α can be wired without touching the mounting plate 20 as in the conventional example.
In addition, there is no need to install the vibrator 23 through the wall W, so the beauty of the building is not impaired and construction is easy. Furthermore, since the ground Mcs is not exposed, it is possible to prevent the inconvenience that the function of the protector A is impaired due to the ground @O, S being damaged or disconnected. Furthermore, in the embodiment, the locking mechanism prevents the waterproof cover 10 from being opened inadvertently, thereby making it possible to prevent mischief. In addition, distribution I
It goes without saying that the Qi-mounting frame 2 may be directly attached to the structure using scissors.

(Example 2) Figure g2 shows another example, in which the engaging protrusion 20a provided at the end of the waterproof cover 10a is engaged with the four engaging parts 20b provided on the base 4a, and the waterproof cover 10a is attached to the base. 4
It is covered with a.

[Effects of the Invention 1] As described above, the present invention includes mounting a base on a wiring #i appliance mounting frame having an opening in the center via a waterproof gasket, drilling an electrical Ai insertion hole in the base, and installing an outdoor wire. Connection terminal, A terminal after indoor wire, ground wire connection #! It is equipped with terminals and safety elements, and the base is covered with a waterproof cover, allowing wiring to be done without exposing the indoor wires and ground wires. ,
Since there is no need to penetrate the wall with a pipe, it can be installed without spoiling the beauty of the building, is easy to construct, and has the effect of preventing inconveniences due to disconnection of the ground wire.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of the present invention, Fig. 2 is an exploded perspective view of another embodiment, Fig. 3 is a diagram showing an example of wiring for a telephone system, and Figs. 4(a) and (b) are FIG. 5, an exploded perspective view of a conventional safety device, is a diagram showing an example of the arrangement of a conventional safety device. 0.1 is an outdoor wire, (2,2 is an indoor wire, α is a ground wire,
A is the safety device, the work is the opening, 2 is the R'a soldier mounting frame, 3 is the waterproof gasket, 4, 4a is the base, 5 is the wire insertion hole, 6,
6a, 6b are outdoor line connection terminals, 7 is indoor line connection terminal, 8
1 is a ground wire connection terminal, 9 is a safety element, 10 is a waterproof cover, 11 is a hinge, 20a is an engagement projection, and 20b is an engagement portion. Agent Patent Attorney Ishi 1) Chief 7 Figure 3 Figure 5 Figure 4 (b)

Claims (3)

[Claims] (1) Attach the base to a wiring device mounting frame with an opening in the center via waterproof packing, and drill a wire insertion hole in the base, as well as an outdoor wire connection terminal, an indoor wire connection terminal, a ground wire connection terminal, and A telephone protector comprising a safety element and a waterproof cover covering the base. (2) The telephone protector according to claim 1, wherein the waterproof cover is rotatably opened and closed by connecting one end of the waterproof cover and the base with a hinge. (3) The telephone according to claim 1, characterized in that the engaging protrusion provided at the end of the waterproof cover engages with the engaging recess provided in the base to cover the base with the waterproof cover. safety device.