JPH11260433A - Connecting terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting terminal capable of cutting a communication line without use of a cutting tool or the like. SOLUTION: A connecting terminal 161 for connecting the end of a communication line to an insulating board to be housed in a terminal box has a groove- shaped holding groove 310 for holding the communication line which is in a conductive state, and a cutting groove 320 which is adjacent to the holding groove 310 and has a knife edge capable of cutting the communication line (for example, a conductive wire cutting knife edge 172) in a part of the side edge.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection terminal such as a terminal used for wiring a telephone line indoors.

[0002]

2. Description of the Related Art Today, plugs called telephone jacks are often used for telephone wiring.
Due to the use of this modular jack and the increasing use of multiple lines today, when wiring telephone lines in advance indoors, as shown in FIG. The drawn office line 249 is connected to, for example, an eight-station terminal 100 to which four lines can be connected, and from this eight-station terminal 100, indoor wirings 261 to 253 as fixed wiring are connected to modular jack outlets 251 to 253 arranged on a wall or the like of each room. 263 is often applied.

The eight-station terminal 100 uses a large number of substantially U-shaped connection terminals 161 as shown in FIG.
As shown in FIG. 7, a terminal board 110 in which the connection terminals 161 are attached to an insulating board 115 is built in. Then, in the eight-station terminal 100, the plurality of connection terminals 161 are connected in a line by one printed wiring to conduct, and
8 rows of connection terminals 161 by printed wirings 141 to 148
A row is provided.

The connection terminal 161 has a fixed leg 165 at the lower end of two standing walls 163 connected by an upper surface 162, and is attached to the insulating substrate 115. The upper end of the standing wall 163 and the upper surface 162 are connected. Has an enlarged notch 166 having an opening width larger than the diameter of a single line of the communication line.
The vertical wall portion 163 has a narrow V-shaped narrow cut portion 167 gradually narrowing from the vertical portion, and an inclined portion gradually narrowing the width between the enlarged cut portion 166 and the narrow cut portion 167 having different widths. A section 168 is provided. Note that the narrow notch 167 is substantially V
Since it is formed in the shape of a groove, it is formed so that it can be held more reliably in a conductive state by pushing the conductive wire downward.

Accordingly, for example, one telephone line is
When used for indoor wiring via the office terminal 100, as shown in FIG.
Are drawn into the eight-station terminal 100, and the ends of the two conductors of the office line 249 are connected to the connection terminals 161 attached to the positions of the first printed wiring 141 and the second printed wiring 142, which are the printed wirings of different columns. Connecting. Then, as indoor fixed wiring to the modular jack outlet, 2 indoor wiring
When this is provided, the end of the first indoor wiring 261 or the second indoor wiring is connected to the other connection terminals 161 of the two rows of printed wirings 141 and 142.
It connects the ends of 262 and performs fixed wiring to each room.

When a single telephone is used, about three telephones can be connected per line, but the number of modular jack outlets, that is, the number of indoor wires, is
According to the number of rooms, etc., modular jack outlets such as 5 to 7 are arranged in each room in advance, and indoor station as fixed wiring according to the number of modular jack outlets is provided, and the 8 station terminal 100 and each modular jack outlet are provided. Wiring is performed.

[0007] The modular jack outlet is 2
It is not limited to a two-station outlet for one line connecting one single line, but a six-station modular jack outlet for connecting six single lines of three lines or an eight-station modular for connecting eight single lines of four lines. A modular jack outlet such as a jack outlet is used, and each single wire is connected to the printed wiring of six rows or eight rows of the eight-station terminal 100 with the single-wire end of the indoor wiring from each modular jack outlet.

[0008] In this case, the office line 249 to be led indoors via the protector 241 is connected to the connection terminals 161 provided in the two rows of printed wiring for each line, and the number of the office line 249 lines can be communicated with the outside line. It is assumed that. When connecting the end of the office line 249 or the end of the indoor wiring to the connection terminal 161 of the eight-station terminal 100, a jig as shown in FIG.
Use 220.

The jig 220 has a U-shaped concave portion 223 at the end corresponding to the shape and size of the connection terminal 161, and a grip portion 229 having a split groove 225 in a direction intersecting with the concave portion 223.
In preparation for the future. The pressing pin 2
27 are provided. Therefore, as shown in FIG.
The leading wire portion 269 such as the local line 249 is positioned at the enlarged cut portion 166 of the connection terminal 161, the concave portion 223 of the jig 220 is positioned at the connection terminal 161, and the split groove 225 of the jig 220 is connected to the wire portion 269. When the front end 221 of the jig 220 is pressed in such a manner as to be pressed against the insulating substrate, the lead portion 269 is pushed into the narrow notch 167 of the connection terminal 161 by the pressing pin 227 and the bottom of the split groove 225. The conductor 269 can be fixed to the connection terminal 161 while being held in a state where the conductor 269 is sandwiched by the width notches 167.

[0010] Nowadays, a digital communication line called ISDN is often used without being limited to an analog communication line that has been widely used. Some ISDNs provide a basic interface called an INS net 64, and the INS net 6
In No. 4, an information channel serving as two digital communication lines is set.

[0011]

As described above, since the use of a plurality of lines is increasing today, it is necessary to carry out wiring for a large number of lines in advance. In order to perform indoor wiring that can be used and to enable multiple lines to be connected to the telephone at multiple locations,
The construction work has become troublesome.

[0012] Therefore, there is a demand for simple and easy implementation of telephone lines. However, the above-described conventional connection terminal, when the lead is pushed into the connection terminal 161 and then fixed in such a manner that the end of the lead protrudes from the connection terminal, may be short-circuited with another lead or connection terminal or the like. Therefore, the portion protruding from the connection terminal 161 had to be cut by a cutting tool or the like. However, there is a first problem that the work of inserting a cutting tool or the like into a narrow space between the connection terminals and cutting the conductor is not easy and requires much time and effort.

Further, the conventional connection terminal 161 is formed in a substantially V-groove shape so that the width of the narrow cut portion 167 becomes gradually smaller. For this reason, if the end face of the narrow notch 167 is formed in a sharp state, there is a second problem that the conducting wire may be cut in the narrow notch 167. Therefore, the invention according to claim 1 has been made in view of the first problem of the above-described conventional technology, and an object thereof is to use a communication line without using a cutting tool or the like. It is intended to provide a connection terminal that can be disconnected.

[0014] In addition, the invention according to claim 2 aims to provide a connection terminal capable of cutting the end of a communication line by simply pushing the communication line in addition to holding the connection state reliably. Things. The third and fourth aspects of the present invention specifically specify the second aspect of the present invention. With a simple structure, it is possible to cut off the end of the communication line by simply pushing in the communication line, and it is possible to reliably cut off the end. It is an object of the present invention to provide a connection terminal that can be maintained in a state where the connection is made conductive and can facilitate the connection work of a communication line.

[0015] In addition, the invention according to claim 5 aims to provide a connection terminal which can cut a coating of a communication line only by pushing in a single line of the communication line and obtain a reliable conduction state. Things. In addition to this, claim 6
The described invention intends to provide a connection terminal that can easily perform the work of attaching the connection terminal.

[0016] By utilizing the prior art search (Patris) of the Japan Patent Information Organization (JAPIO), the technology for solving the above-mentioned problems can be applied to patent applications and utility model registration applications after 1980 by the following search formula. investigated. Search formula: H01R04 / 48A * (connection + connection) * wiring As a result, 70 patent applications and 70 utility model registration applications were extracted. Within the investigation range, as connection terminals, JP-A-63-98974 and JP-A-61-3
There was a technique described in Japanese Patent No. 2964, etc.
The above-mentioned problems could not be solved, and the same technology as the present invention could not be found by this prior art search.

[0017]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. The invention according to claim 1 is
A connection terminal (161) for connecting the end of the communication line to the insulating substrate (115) housed in the terminal box (210), and the connection terminal (161) holds the communication line in a conductive state. Cutting groove having a groove-like holding groove (310) and a knife edge (for example, knife edge 172 for cutting a conductive wire) adjacent to the holding groove (310) capable of cutting a communication line at a part of a side edge. (320).

Here, the "groove-shaped holding groove (310) for holding the communication line in a conductive state" means that the communication line is held while the portion holding the communication line is in contact with the conductor (269) of the communication line. It suffices if it is possible to transmit an electric signal from a line and hold a communication line. For example, the holding portion is made of a metal capable of transmitting an electric signal and has a groove having a width smaller than the diameter of the communication line (269), and the exposed portion of the communication line (269) in the groove. And what is obtained by pressing.

Here, the "cutting groove (320) having a knife edge (172) capable of cutting a communication line in a part of a side edge adjacent to the holding groove (310)" means, for example, a communication line. When the line is held in the holding groove (310), it is located at the tip side of the communication line, and the tip side of the communication line is connected to the knife-like knife edge (172) formed on the side edge of the cutting groove (320). It includes one that can cut the protruding part on the distal end side of the communication line by pressing toward the other end.

Since the connection terminal according to the present invention has the groove-shaped holding groove (310) for holding the communication line in a conductive state, the connection terminal can transmit an electric signal from the communication line and communicate with the communication line. The circuit can be fixed to the insulating substrate (115) of the terminal box (210). A cutting groove (320) having a knife edge (172) capable of cutting a communication line on a part of a side edge is provided adjacent to the holding groove (310), and is fixed by the holding groove (310). Unnecessary portions on the leading end side of the communication line can be cut off. Thus, in the wiring work of the communication line, the communication line can be cut without using a dedicated cutting tool for cutting the communication line, thereby facilitating the wiring work. Also, there is no need to provide a space around the connection terminal (161) where the tip of the cutting tool can be inserted, and the interval between the connection terminals (161) is more compared to when the cutting tool must be used. The terminal box (210) can be efficiently arranged in a small area, and the size of the terminal box (210) can be reduced.

The second aspect of the present invention is the first aspect of the present invention.
In addition to the features described, the holding groove (310) has an enlarged notch (166) wider than the single wire diameter of the communication line, and a U-groove-shaped wire support (173) slightly narrower than the wire (269) diameter. And an inclined portion (168) inclined between the enlarged notch portion (166) and the conductor supporting portion (173), and the inclined portion (168) has a single line covering (268) on a communication line on both side edges thereof. ) Is provided with a knife-shaped knife edge (171) for cutting a sheath, and the cutting groove (320) has a knife-shaped knife edge (172) for cutting a conductor (269) on both side edges thereof. ), And is formed so that the width between the knife edges (172) for cutting the conductive wire is gradually reduced.

Here, the "communication line" is formed from a plurality of "single wires", and the "single wire" is formed from "conductive wire (269)" and "coating (268)". Is formed. The `` conductor (269) '' is located at the center of the `` single wire '', and is composed of a group of a plurality of thin metal wires, or a single thin metal wire, and can transmit an electrical signal of a `` communication line ''. The covering (268) is made of an insulating material such as vinyl, and covers the periphery of the conducting wire (269) so that it does not come into contact with another conducting wire (269).
9) ".

According to the present invention, the holding groove (310) includes the enlarged cut portion (166), the inclined portion (168), and the conductor supporting portion (173). And a lead having a coating on the holding groove (310).
When the single line of the communication line composed of (269) is moved, the enlarged notch (166) is formed wider than the single line diameter of the communication line, so that the single line of the communication line can be easily inserted into the holding groove (310). Can be put in. Further, when the single line of the communication line is pushed toward the conductor supporting portion (173) along the inclined portion (168) inside the holding groove (310), the inclined portion (168)
A single wire coating (268) of a communication line is cut by a coating cutting knife edge (171) formed on the side edge of the communication line. Further, when the single line of the communication line is pushed in, the U-shaped conductor supporting portion (1
73). Since the conductor supporting portion (173) is formed in the shape of a U-groove slightly smaller than the diameter of the conductor (269), the conductor supporting portion (173) has the conductor (2) exposed by cutting the coating (268).
The surface of 69) can be reliably sandwiched. As a result, the conducting wire (269) and the connection terminal (161) become conductive, and the electric signal transmitted inside the conducting wire (269) of the communication line can be transmitted to the connection terminal (161), and the communication line Can be held.

The cutting groove (320) is provided with a knife-shaped knife edge (172) for cutting a wire on both side edges thereof, and is formed so that the width between the knife edges (172) for cutting the wire gradually decreases. Have been. Then cut the single line of the communication line into the cut groove (3
After inserting so as to be sandwiched in 20), gradually push the single line of the communication line in the direction in which the width between both sides of the cutting groove (320) becomes smaller, and cut the conductor formed on the both sides. First, the coating (268) is cut by the knife edge (172), and then the wire (269) is cut. And finally, the single line of the communication line can be completely cut and separated.

The third aspect of the present invention is the second aspect of the present invention.
In addition to the features described, the connection terminal (161) has a substantially U-shaped main body (330) in which two substantially parallel standing walls (163) are connected by an upper portion, and a U-shaped main body (330). And an outer folded piece (331) that extends from one end of the U-shaped body (330) and is folded toward the outside of the U-shaped body (330). A notch (166) is formed,
The upright wall portion (163) has an enlarged cut portion (166) on the upper surface, an inclined portion (168) continuous from the enlarged cut portion (166), and a holding groove (310) including a conductor supporting portion (173). The cutout groove (320) is formed on the outer folded piece (331) and is opened upward.

According to the present invention, when the single line of the communication line is moved from above the enlarged cut portion (166) on the upper surface of the U-shaped main body (330) toward the bottom surface of the lower holding groove (310), Since the enlarged notch (166) is formed wider than the single wire diameter of the communication line, a single line of the communication line can be easily inserted into the enlarged notch (166). And then,
When the single line of the communication line is pushed into the conductor supporting portion (173) along the inclined portion (168) inside the holding groove (310), the inclined portion (168)
A single wire coating (268) of a communication line is cut by a coating cutting knife edge (171) formed on the side edge of the communication line. Further, when the single line of the communication line is pushed in, the U-shaped conductor supporting portion (1
A communication line enters at 73). Since the conductor supporting portion (173) is formed in the shape of a U-groove slightly smaller than the diameter of the conductor (269), the surface of the conductor (269) that is exposed by cutting the coating (268) is surely sandwiched. Can be. This allows the conductor (26
9) and the connection terminal (161) are in a conductive state, and an electric signal transmitted inside the conductor (269) of the communication line is transmitted to the connection terminal (16).
In addition to 1), it can hold a single line of communication line.

Further, since the outer turning piece (331) is formed with a cutting groove (320) that opens upward,
When pushing the single line of the communication line into the holding groove (310) of the U-shaped main body (330), simultaneously insert the front end side of the single line of the communication line into the cutting groove (320) of the outer folded piece (331) from above. It can be moved downward. And this cutting groove (3
20) is a knife-shaped knife edge on both side edges
(172), and the width between the wire cutting knife edges (172) is formed so as to gradually decrease, so that when the single line of the communication line is moved downward, the wire cutting knife edge (172) is formed. ), A single line of the communication line can be disconnected. That is, the holding of the single line of the communication line in the conductive state by the holding groove (310) and the cutting of the leading end side of the single line of the communication line by the cutting groove (320) are simultaneously performed only by one pushing operation of the communication line. be able to. Thereby, the connection work of the end of the communication line can be facilitated.

The invention according to claim 4 is the above-described claim 2.
In addition to the features described, the connection terminal (161) includes a substantially U-shaped main body (330) in which two substantially parallel standing walls (163) are connected by an upper portion, and the U-shaped main body (330). ) Extending from one end of the U-shaped main body (330) and folded back toward the inside of the U-shaped main body (330), and the upper surface of the U-shaped main body (330) has an enlarged cut portion (166) Is formed, and one of the standing wall portions (163) has an enlarged cut portion (166) on the upper surface and the enlarged cut portion (166).
A holding groove (310) consisting of an inclined portion (168) continuing downward from (166) and a conductor supporting portion (173) is formed, and an upright wall portion is formed.
On the other side of (163), a cutting groove (320) opening upward.
Is formed on the inner folded piece (332), and an enlarged notch (166) opening upward, and the enlarged notch (16
A holding groove (310) comprising an inclined portion (168) continuing downward from 6) and a conductor supporting portion (173) is formed.

According to the present invention, an enlarged cut portion (166) on one upper surface of the upright wall portion (163) of the U-shaped main body (330) and an enlarged cut portion (166) on the upper surface of the inner folded piece (332) are provided. When the single line of the communication line is moved from above to the lower side of the holding groove (310), the enlarged cut portion (166) is formed to be wider than the single line diameter of the communication line. Department (16
6) A single line of communication line can be inserted inside. Further, the single line of the communication line is further connected to the inclined portion (168) inside one holding groove (310) of the upright wall portion (163) and the inner folded piece (3).
When pushed downward along the inclined portion (168) inside the holding groove (310) of the (32), the coating cutting knife edge (171) formed on both side edges of the inclined portion (168), The single line covering (268) of the communication line is cut. Further, when the single line of the communication line is pushed downward, the communication line enters the U-groove-shaped conductor supporting portion (173). The wire support (173) is connected to the wire (26
9) Because it is formed in a U-shaped groove slightly narrower than the diameter,
The conductor supporting portion (173) can sandwich the surface of the conductor (269) exposed by cutting the coating (268). This allows
The conducting wire (269) and the connection terminal (161) become conductive, and the electric signal transmitted inside the conducting wire (269) of the communication line can be transmitted to the connection terminal (161). Can be held.

In the upright wall portion (163) of the U-shaped main body (330) where the holding groove (310) is not formed, a cutting groove (320) opening upward is formed in the other upright wall portion (163). ) Is formed. For this reason, one holding groove (310) of the standing wall portion (163) of the U-shaped main body (330) and the holding groove (310) of the inner folded piece (332)
When the communication line is pushed into the communication line, the front end of the single line of the communication line can be simultaneously moved downward along the cutting groove (320) on the other side of the upright wall (163). This cut groove
The wire cutting knife edge (172) on both sides of (320) is formed so that the width between both sides is gradually reduced, so that when a single line of the communication line is moved downward, the wire cutting knife edge (172) is cut. With the knife edge (172), a single line of the communication line can be cut. That is, the holding of the communication line in a conductive state by the holding groove (310) and the cutting of the leading end side of the single line of the communication line by the cutting groove (320) are simultaneously performed only by a single pushing operation of the single line of the communication line. be able to. Thereby, the connection work of the end of the communication line can be facilitated.

According to the fifth aspect of the present invention, there is provided the third aspect of the present invention.
Or, in addition to the features of claim 4, a U-shaped body (330)
The upright wall portion (163) is characterized in that, as it is located below, the distance between them increases. In addition, here, "Standing wall part
(163), the more they are located below, the more they are spaced apart. "Means that the lower the standing wall (163), the greater the distance between the standing walls (163). Specifically, for example, specifically, the vertical wall shape of the upright wall portion (163) includes a shape in which the vertical cross section is formed in a substantially C-shaped divergent shape.

The present invention relates to a vertical wall portion (163) of a U-shaped main body (330).
Are located farther apart, the lower they are. For this reason, the holding groove (310) and the cutting groove formed in the upright wall (163) are formed.
(320), etc., the communication line is pushed into the inside, and the whole or a part of the communication line coating (268) is cut off by the inclined portion (168). The spacing between the applied coatings (268) increases. As a result, the coating (268) inside the U-shaped body (330) and the U-shaped body
A force is applied in a direction to separate the outer coating (268) of the (330) from the outer coating (268), so that the coating (268) can be further completely cut, and a wire (269) is attached to the surface between the separated coatings (268). Can be exposed. Therefore, the connection terminal (161)
And the conductor (269) exposed on the surface of the communication line can be surely contacted, and a reliable conduction state can be obtained.

The invention according to claim 6 is the above-described claim 3.
Alternatively, in addition to the features of claim 4, the connection terminal (161)
A connecting terminal portion (340) having a pair of holding grooves (310) and a cutting groove (320), and a connecting portion connecting between the connecting terminal portions (340).
(341), the connection terminal portion (340) and the connection portion (341)
Is characterized in that a plurality of pairs of holding grooves (310) and cutting grooves (320) are formed in one conductive sheet (342), punched out, and bent to form a U-shaped main body (330) and a folded piece. And

According to the present invention, a plurality of sets of a pair of holding grooves (310) and cutting grooves (320) are punched out of one conductive sheet (342),
By bending, a U-shaped main body (330) and folded pieces (331, 332) are formed, and the connection terminal portion (340) and the connecting portion (34)
1) is formed. That is, a large number of connection terminals (340)
Are formed separately and independently, and they are not attached to the insulating substrate (115), but a plurality of connection terminal portions (340) are formed from one conductive sheet (342). For this reason, it is not necessary to attach a large number of connection terminal portions (340) to the insulating substrate (115), and it is possible to attach a large number of connection terminal portions (340) by a single attachment terminal (161) attachment operation. As a result, the work of attaching the connection terminal (161) can be simplified as compared with the case where the independent connection terminal portions (340) are attached.

[0035]

Embodiments of the present invention will be described below in more detail with reference to the drawings. 1 to 6 show a first embodiment of the present invention. FIG. 1 is an external perspective view of a connection terminal, FIG. 2 is a plan view of the connection terminal in a long state before being bent, 3 is a schematic wiring diagram of a telephone line using a terminal board of a telephone line terminal, FIG. 4 is a plan view of a terminal board of the telephone line terminal, FIG. 5 is an exploded perspective view of the telephone line terminal, and FIG. The perspective view of the use condition of the connection tool stored in a line terminal is shown, respectively.

The connection terminal 161 according to the present embodiment is for connecting the end of the communication line to the insulating substrate 115 housed in the terminal box 210 of the telephone line terminal. As shown in FIG. 4, the form of the telephone line terminal used a terminal substrate 110 having eight linear printed wirings 121 to 128 on a plate-shaped insulating substrate 115 and having 72 connection terminals 161. It is terminal 100 of 8 stations.

In the eight-station terminal 100, the insulating substrate 115
The lead portions 131 to 138 are provided on each of the printed wirings 121 to 128, and two 100Ω resistors are attached to the insulating substrate 115 as the terminating resistors 151, and two DIP switches as small switches 155 are also provided. Terminal board 110. Then, the lead portion 1 of the first printed wiring 121
31 is connected to one end of a terminating resistor 151,
The other end is connected to one small switch 1 via the auxiliary lead 158.
The other input terminal of the small switch 155 is connected to the lead portion 132 of the second printed wiring 122.

Further, the lead 133 of the third printed wiring 123
Is connected to one end of another terminating resistor 151, and the other end of this terminating resistor 151 is connected to one input terminal of another small switch 155 via an auxiliary lead 158. Are connected to the lead portions 134 of the fourth printed wiring 124. The fifth printed wiring 125 and the seventh printed wiring 127 are also provided with leads 135 and 137, respectively, and these leads 135 and 137 are also provided with small switches 155 such as DIP switches.
And the sixth printed wiring 126
And the eighth printed wiring 128 are also provided with leads 136 and 138, respectively. The leads 136 and 138 are formed so that the terminating resistor 151 can be connected thereto, and the auxiliary switch 155 and the terminating resistor 151 can be connected in series. Two lead portions 158 are provided, and two small switches 155 and two terminating resistors 151 can be added.

Eight linear printed wiring lines 1 connecting these 72 connection terminals 161 and 9 connection terminals 161 in a line.
8 incorporating a terminal board 110 having printed wirings 121 to 128 having lead portions 131 to 138 and two terminating resistors 151 and small switches 155, respectively
The station terminal 100 has a maximum of eight lines with a maximum number of four lines.
It is possible to connect the indoor wiring of a book.

When connecting four 6-station modular jack outlets 251-254, as shown in FIG.
The first indoor wiring 261 is led from the first modular jack outlet 251 to the eight office terminal 100, which is a telephone line terminal, and the six single wires of the first indoor wiring 261 are respectively printed on the first printed wiring 121 to the sixth printed wiring 126. And the single wires of the second indoor wiring 262 from the second modular jack outlet 252 are also connected to the connection terminals 161 of the first printed wiring 121 to the sixth printed wiring 126, respectively. Similarly, the single wires of the third indoor wiring 263 and the fourth indoor wiring 264 from the third modular jack outlet 253 and the fourth modular jack outlet 254 also correspond to the first printed wiring 121 to the sixth printed wiring 126. Are connected to the respective connection terminals 161.

When connecting each single wire of the communication line of each indoor wiring to the connection terminal 161, each single wire consisting of the conductor 269 and the coating 268 is pushed into the connection terminal 161 to be fitted therein. Is brought into contact with each connection terminal 161 to be fixedly connected. Then, when using the digital communication line of the INS network 64, as shown in FIG. 3, the office line 249 via the security device 243 is connected to the digital line termination device 245, The first bus wiring is connected to the connection terminal 161 of the first printed wiring 121 and the connection terminal 161 of the second printed wiring 122, and the small switch 155 in which the lead of the second printed wiring 122 is connected to the input terminal is turned on. The second bus wiring from the digital line termination device 245 is the connection terminal 1 of the third printed wiring 123.
The small switch 155 which is connected to the connection terminal 161 of the fourth printed wiring 124 and the lead of the fourth printed wiring 124 is connected to the input terminal is kept on.

The connection terminal 161 of the fifth printed wiring 125 and the connection terminal 161 of the sixth printed wiring 126 can be further connected to a central line 249 of an analog communication line via a protector 241.
It is possible to use three lines of two digital communication lines and one analog communication line by the INS network 64. When using an analog communication line, protector 241
To the connection terminal 161 of the first printed wiring 121
And the connection terminal 161 of the second printed wiring 122,
The small switch 155 in which the lead of the printed wiring 122 is connected to the input terminal is kept in the off state.

Further, when two analog communication lines are used, the second office line 249 via the protector is connected to the connection terminal 161 of the third printed wiring 123 and the connection terminal 161 of the fourth printed wiring 124. The small switch 155 in which the lead portion of the fourth printed wiring 124 is connected to the input terminal is kept in the off state. When three analog communication lines are used, the third office line 249 via the protector 243 is connected to the connection terminal 161 of the fifth printed wiring 125 and the sixth printed wiring 126
To the connection terminal 161.

When four lines, which is the maximum number of lines, are used, the eight-station modular jack outlets 251 to 254 are used.
1 to 254 single wires are respectively connected to the respective connection terminals 161 of the first printed wiring 121 to the eighth printed wiring 128, and the protector 243 is connected.
Are connected to the connection terminal 161 of the first printed wiring 121 and the connection terminal 161 of the second printed wiring 122.
The connection terminal 161 of the third printed wiring 123 and the connection terminal 161 of the fourth printed wiring 124, the connection terminal 161 of the fifth printed wiring 125 and the connection terminal 161 of the sixth printed wiring 126,
It is connected to the connection terminal 161 of the seventh printed wiring 127 and the connection terminal 161 of the eighth printed wiring 128.

Therefore, when the eight-station terminal 100 is used, when the small switch 155 is turned off, indoor wiring can be used for an analog communication line, and when the small switch 155 is turned on, a digital communication line can be used. As indoor wiring. That is, the indoor wiring that has been subjected to the wiring in advance can be used for the analog communication line and the digital communication line.

The terminal board 110 shown in FIG.
Uses an insulating substrate 115 on which two more terminating resistors 151 and a small switch 155 can be added.
If the number of 51s and small switches 155 are increased to four, it is possible to use up to four lines of two digital communication lines and analog communication lines or four digital communication lines of two ISDNs. .

As shown in FIG. 2, the connection terminal 161 to be attached to the terminal board 110 such as the eight-station terminal 100 is a long plate having a surface plated with solder and having a thickness of 0.5.
It is formed by bending a thin metal plate of 4 mm at four locations. As shown in FIG. 1, the connection terminal 161 has a groove-like holding groove 310 for holding the communication line in a conductive state and a knife edge capable of cutting the communication line adjacent to the holding groove 310. And a cutting groove 320 provided in a part of the edge.

The connection terminal 161 according to the present embodiment is provided with the groove-shaped holding groove 310 for holding the communication line in a conductive state, so that it is possible to transmit an electric signal from the communication line, Communication line to terminal box 21
It can be fixed to the zero insulating substrate 115. Further, since the cutting groove 320 having a knife edge capable of cutting the communication line at a part of the side edge is provided adjacent to the holding groove 310, the unnecessary end of the communication line fixed by the holding groove 310 is unnecessary. Parts can be cut. Thus, in the wiring work of the communication line, the communication line can be cut without using a dedicated cutting tool for cutting the communication line, thereby facilitating the wiring work. Further, there is no need to provide a space around the connection terminal 161 where the tip of the cutting tool can be inserted.
Compared to a case where a cutting tool needs to be used, a space can be efficiently arranged in a smaller area, and the size of the terminal box 210 can be reduced. Specifically, the holding groove 310 is provided with a communication line covering 268.
And enlarged notch 1 wider than the single wire diameter consisting of conductor 269
66, a U-shaped groove-shaped conductor support 173 slightly smaller than the diameter of the conductor 269, and an inclined portion 168 inclined between the enlarged notch 166 and the conductor support 173. This ramp 168
Is provided with a knife-shaped sheath cutting knife edge 171 for cutting a single wire covering 268 of a communication line on both side edges thereof.

The cutting groove 320 is provided with a blade-shaped knife edge 172 for cutting the conductive wire 269 at a part of both side edges thereof, and the width between the knife edges 172 for cutting the conductive wire gradually increases. It is formed to be smaller. Further, specifically, the connection terminal 161 has a substantially U-shaped main body 330 in which two substantially parallel upright walls 163 are connected by an upper portion, and a U-shaped body extending from one end of the U-shaped main body 330. Body
An outer folded piece 331 folded toward the outside of 330 is provided. And, the standing wall portion 163 of the U-shaped main body 330 is formed.
The more they are located below, the more they are separated from each other. Specifically, the vertical wall section 163 is formed in a substantially C-shaped divergent shape. On the upper surface of the U-shaped main body 330, an enlarged cut portion 166 that opens upward is formed, and on the standing wall portion 163, an enlarged cut portion 166 on the upper surface,
A holding groove 310 including an inclined portion 168 continuous from the enlarged cut portion 166 and a conductor supporting portion 173 is formed. Also,
A cutting groove 320 that opens upward is formed at the upper end of the outer folded piece 331. The cut groove 320 has an enlarged cut portion 166 that opens upward from the outer folded piece 331, an inclined portion 168 that continues from the enlarged cut portion 166, and a conductive wire 26 that is located below the inclined portion 168.
Knife edge 172 for cutting the wire in the form of a knife for cutting 9
On both sides. Further, on the lower surface side of the outer folded piece 331 and the one standing wall portion 163, fixing legs 165 extending downward and fixing the connection terminal 161 to the insulating substrate 115 are provided.
Are formed.

According to the present embodiment, when the single line of the communication line is moved from above the enlarged cut portion 166 on the upper surface of the U-shaped main body 330 toward the bottom surface of the holding groove 310 below, the enlarged cut portion 166 is formed. Is formed wider than the single line diameter of the communication line, so that the single line of the communication line can be easily inserted into the enlarged notch 166. Further, when the single line of the communication line is pushed into the conductor supporting portion 173 along the inclined portion 168 inside the holding groove 310, the communication is cut by the coating cutting knife edge 171 formed on the side edge of the inclined portion 168. The single wire sheath 268 of the line is cut. Furthermore, when the single line of the communication line is pushed in, the communication line enters the U-shaped conductor supporting portion 173. Since the conductor supporting portion 173 is formed in a U-shaped groove slightly narrower than the diameter of the conductor 269, the conductor supporting portion 173 is
The surface of the conductive wire 269 that is exposed when the coating 268 is cut can be reliably sandwiched. As a result, the conductor 269 and the connection terminal 1
As a result, the electrical signal transmitted through the conductor 269 of the communication line can be transmitted to the connection terminal 161 and the single line of the communication line can be maintained.

Further, the outer folded piece 331, the enlarged cut portion 1
66, inclined portion 168, and cutting groove 3 opening upward
Since 20 is formed, when pushing a single line of the communication line into the holding groove 310 of the U-shaped main body 330, the leading end side of the single line of the communication line is simultaneously inserted from above into the cutting groove 320 of the outer folded piece 331. It can be moved downward. Then, similarly to the case of the holding groove 310, the inclined portion 168 covers
268 is cut. Further, since the cutting groove 320 is provided with a knife-shaped knife edge 172 for cutting a wire on both side edges thereof and is formed so that the width between the knife edges 172 for cutting the wire gradually decreases, the single line of the communication line is formed. Is moved downward, the conductor cutting knife edge 172 can cut a single line of the communication line. That is, the holding of the single line of the communication line by the holding groove 310 in a conductive state and the cutting of the leading end side of the single line of the communication line by the cutting groove 320 can be simultaneously performed only by a single push-in operation of the communication line. Thereby, the connection work of the end of the communication line can be facilitated.

The vertical wall portion 163 of the U-shaped main body 330 is separated from the vertical wall portion 163 at a lower position. For this reason, the communication line is pushed into the holding groove 310, the cutting groove 320, or the like formed in the upright wall portion 163, and all or a part of the communication line covering 268 is cut by the inclined portion 168. Pushing the line downward increases the spacing between the two cut sheaths 268. Thereby, a force is applied in a direction in which the coating 268 inside the U-shaped main body 330 and the coating 268 outside the U-shaped main body 330 are separated, and the coating 268 can be further completely cut off and separated. The wires 269 can be exposed at the surface between the coatings 268.
Therefore, contact between the connection terminal 161 and the conductive wire 269 exposed on the surface of the communication line can be ensured, and a reliable conduction state can be obtained.

When attaching the connection terminal 161 to the insulating substrate 115, the connection terminal 161 is attached using a driver or the like via a connection tool 230 as shown in FIG. Specifically, the connection tool
230 has a concave portion 233 at the tip, and the concave portion 233 has a size that allows the connection terminal 161 to be inserted.
The concave portion 233 conforms to the shape of FIG. Further, a split groove 235 is provided in a direction intersecting with the concave portion 233, and the width of the split groove 235 is made substantially equal to the diameter of the single line of the communication line so that the single line can be inserted. Further, at the bottom center of the concave portion 233, a pressing pin 237 having a length corresponding to the depth of the split groove 235 from the distal end portion 231 of the connecting device 230 is provided.
From the bottom of the split groove 235 to the tip of the pressing pin 237 from the tip 231 of the connection tool 230.

Further, a driver insertion hole 239 is provided at the center of the rear end surface of the connection tool 230, and as shown in FIG. It can be fixed to the tip of the driver. Therefore, the connection tool 230 can be a small jig slightly larger than the connection terminal 161 and can be housed inside the terminal box 210 without increasing the size of the terminal box 210. is there. Although not shown, the terminal box 21 can be inserted into a protruding projection or the like in the terminal box 210, or fixed by sandwiching the connecting member 230 between two projections or the like.
When connecting a telephone line to the terminal 0, when connecting the end of the telephone line to the connection terminal 161, it is very easy to perform the connection by attaching the connection device 230 to the tip of the driver, and after the connection is completed, a small connection device The 230 is stored in the terminal box 210, and wiring work can be easily performed even when additional work is performed.

When housing the insulating substrate 115 to which the connection terminals 161 are attached in the terminal box 210,
As shown in Fig. 5, the board should be buried in the wall of the house.
The terminal board 110 is fixed inside the terminal box 210 attached to the terminal box 209, and the mounting frame 213 is screwed into the terminal box 2 in accordance with the front surface of the terminal box 210.
10 and a fireproof cover having fire resistance is screwed to the mounting frame 213 as a cover 215, and the connection portion and the line end are covered with the cover 215 which is a fireproof cover. A plate 217 made of resin or the like is attached to the 216.

As described above, the cover 215 is provided with the fireproof cover.
If the terminal box 210 embedded in the wall is kept closed, the terminal box
It is possible to prevent the line end inside 210 from being damaged. Although the above-described embodiment is an embodiment of the eight-station terminal 100 as a telephone line terminal, the six-terminal terminal and the four-station terminal also have a telephone line terminal that is easy to assemble and operate. And a telephone line terminal usable for an analog communication line and a digital communication line.

Further, the number of connection terminals 161 to be attached to one printed wiring is not limited to nine, and the number of telephone line terminals can be appropriately increased or decreased according to the number of indoor wirings. Next, a second embodiment will be described. 7 and 8 show a second embodiment of the present invention. FIG. 7 is an external perspective view of the connection terminal, and FIG. 8 is a plan view of the connection terminal in a long state before being bent. Things.

In the present embodiment, the positions of the holding groove 310 and the cutting groove 320 of the connection terminal 161 of the first embodiment are changed, and the bending direction of the original long metal thin plate of the connection terminal 161 is changed. The direction is changed not to the outside of the U-shaped body 330 but to the inside of the U-shaped body 330. Other configurations are the same as those of the first embodiment, and the same components are given the same part numbers and description thereof is omitted.

Specifically, according to the present embodiment, the connection terminal 161 has a substantially U-shaped main body 330 in which two substantially parallel upright wall portions 163 are connected at the upper portion, and the U-shaped main body 330. An inner folded piece 332 extending from one end of the main body 330 and folded toward the inside of the U-shaped main body is provided. An enlarged cut portion 166 is formed on the upper surface portion 162 of the U-shaped main body 330. And, on the other side (FIG. 7) of the standing wall portion 163,
The enlarged cut portion 166 of the upper surface portion 162 and the enlarged cut portion 166
Inclined portion 168 that is continuous downward from
73 are formed. And
In the upright wall portion 163 of the upright wall portion 163 on which the holding groove 310 is not formed, the enlarged cut portion 166 and the enlarged cut portion 16 are formed.
An inclined portion 168 that continues downward from 6, and a wire support portion
173 are formed. The inner folded piece 332 has a holding groove including an enlarged cut portion 166 that opens upward, an inclined portion 168 that continues downward from the enlarged cut portion 166, and a conductive wire support portion 173.
310 is formed.

Next, the operation and effect of the above embodiment will be described. According to the present embodiment, a U-shaped main body
Enlarged cut 16 on the upper surface of standing wall 163 on the back side of 330 (FIG. 7)
6 and the single line of the communication line is moved from above the enlarged cut portion 166 on the upper surface of the inner folded piece 332 toward the lower side of the holding groove 310, the enlarged cut portion 166 is wider than the single wire diameter of the communication line. Since it is formed, a single line of a communication line can be easily inserted into the enlarged cut portion 166. Then, the single line of the communication line is further connected to the standing wall 16
The inclined portion 168 inside the holding groove 310 of the third, and the inner folded piece 332
When pressed down along the inclined portion 168 inside the holding groove 310, the coating cutting knife edge 171 formed on both side edges of the inclined portion 168 causes the coating line 2 of the communication line to be cut.
68 is disconnected. Further, when the single line of the communication line is pushed downward, the communication line enters the U-groove-shaped conductor supporting portion 173. Since the conductor supporting portion 173 is formed in a U-shaped groove slightly narrower than the diameter of the conductor 269, the conductor supporting portion 173 can sandwich the exposed surface of the conductor 269 from which the coating 268 has been cut. Accordingly, the conducting wire 269 and the connection terminal 161 are in a conductive state, and an electric signal transmitted inside the conducting wire 269 of the communication line can be transmitted to the connection terminal 161 and a single line of the communication line can be held. .

The standing wall 163 of the U-shaped main body 330 on the front side (FIG. 7) where the holding groove 310 is not formed is formed.
Has a cutting groove 320 that opens upward. Therefore, when the communication line is pushed into one holding groove 310 of the upright wall portion 163 of the U-shaped main body 330 and the holding groove 310 of the inner folded piece 332, the front end side of the single line of the communication line is simultaneously located on the near side. It can be moved downward along the cutting groove 320 of the standing wall portion 163. Since the wire cutting knife edge 172 on both side edges of the cutting groove 320 is formed so that the width between both side edges is gradually reduced, the wire cutting knife is moved when a single line of the communication line is moved downward. Edge
With 172, a single line of the communication line can be disconnected.
That is, the holding of the communication line in the conductive state by the holding groove 310 and the cutting of the leading end side of the single line of the communication line by the cutting groove 320 can be simultaneously performed only by a single pushing operation of the single line of the communication line. Thereby, the connection work of the end of the communication line can be facilitated.

Next, a third embodiment will be described. 9 to 11 show a third embodiment of the present invention. FIG. 9 is an external perspective view of a connection terminal, FIG. 10 is a plan view of a sheet-like connection terminal, and FIG. 11 is a telephone line terminal. FIG. 2 is a plan view of an insulating substrate. The connection terminal 161 according to the present embodiment has a pair of holding grooves 310 and cutting grooves.
A connection terminal portion 340 having a connection terminal 320 and a connection portion 341 for connecting the connection terminal portions 340 are provided. The connection terminal portion 340 and the connection portion 341 are formed on a single conductive sheet 342 by a pair of holding grooves 310 and cutting. A plurality of sets of grooves 320 are punched out and bent outward of the U-shaped main body 330 to form the U-shaped main body 330 and the outer folded pieces 331. That is, by punching out one conductive sheet 342, a plurality of connection terminals 16 described in the first embodiment can be obtained.
1 is a connection terminal portion 340, and each connection terminal portion 340 is connected in advance by a connection portion 341. Note that the fixed leg 16 in the first embodiment
5 is not formed, but instead has a screw hole 343 for fixing it to the insulating substrate 115 with a fastening member such as a screw. Other configurations are substantially the same as those of the first embodiment, and the same configurations are denoted by the same component numbers and description thereof is omitted.

According to the present embodiment, one conductive sheet
By forming a plurality of pairs of holding grooves 310 and cutting grooves 320 in 342, punching out and bending the outside of the U-shaped main body 330,
A U-shaped main body 330 and an outer folded piece 331 are formed, and a connection terminal portion 340 and a connection portion 341 are formed. That is, instead of forming a large number of connection terminals 161 separately and independently and attaching them to the insulating substrate 115, one conductive sheet 342
To form a plurality of connection terminal portions 340. For this reason,
The work of attaching a large number of connection terminals 161 to the insulating substrate 115 becomes unnecessary, and by attaching the connection terminals 161 once, a large number of connection terminals 340 can be attached.
As compared with the case where the independent connection terminals 161 are individually mounted, the work of mounting the connection terminals 161 can be simplified.

As shown in FIG. 11, printed wirings 141 to 148 connected to long connection terminals 161 having a plurality of connection terminals 340, lead portions 131 to 138, and auxiliary leads are used as the insulating substrate 115. The insulating substrate 115 provided with the portion 158 is used. The insulating board 115 is capable of mounting four resistors and two small switches 155, and a lead portion 131 is provided from the first printed wiring 141 so that the terminals of the resistor can be connected. In addition, an auxiliary lead 15 for connecting the other terminal of this resistor to the input terminal of the small switch.
8, and a lead portion 132 that can be connected to another input terminal of this small switch from the second printed wiring 142, and a lead portion 133 that can be connected to another resistor terminal from the third printed wiring 143. A lead portion 134 for connecting the input terminal of another small switch from the fourth printed wiring 144, and an auxiliary lead portion 158 for connecting another input terminal of this small switch to another input terminal of the resistor. And a lead portion 13 for connecting the input terminal of the small switch from the fifth printed wiring 145 and the seventh printed wiring 147 in the same manner.
5,137, the sixth printed wiring 146 and the eighth printed wiring 12
Lead part 136, which allows connection of the resistor terminal from part 148,
138 is further provided with two auxiliary lead portions 158 enabling connection of the terminal of the resistor and the input terminal of the small switch.

Therefore, if two or four terminating resistors 151 and a small switch 155 are attached to the insulating substrate 115 together with the eight connecting terminals 161, the assembly is extremely easy and the digital communication line can be used for analog. The terminal board 110 can also be used for a communication line. Next, a fourth embodiment will be described.

FIGS. 12 and 13 show a fourth embodiment of the present invention. FIG. 12 is an external perspective view of a connection terminal.
3 is a plan view of a sheet-like connection terminal. This embodiment is substantially the same as the third embodiment, in which a plurality of connection terminal portions 340 and connection portions 341 are formed by punching out one conductive sheet 342. However, in the present embodiment, the arrangement of the holding groove 310 and the cutting groove 320 inside the connection terminal portion 340 is substantially the same as that of the connection terminal 161 of the second embodiment. That is, the inner folded piece 332 is formed by being folded inside the U-shaped main body 330. Other configurations are substantially the same as those of the first to third embodiments, and the same configurations are denoted by the same component numbers and description thereof is omitted.

Also in the present embodiment, the same effect as that of the third embodiment, in which the work of attaching the connection terminal 161 can be simplified, can be obtained. Next, a fifth embodiment will be described. 14 and 15 show a fifth embodiment of the present invention. FIG. 14 is an external perspective view of the connection terminal, and FIG. 15 is a plan view of the connection terminal in a long state before being bent.

In the above-described first to fourth embodiments, the cutting groove 320 includes the enlarged cut portion 166, the inclined portion 168 having the coating cutting knife edge 171 and the conductor cutting knife edge 172. On the other hand, in the present embodiment,
It is characterized in that only a cutting groove 320 composed of one knife edge is provided. Other configurations are
This is the same as the first embodiment, and the same components are given the same part numbers, and the description is omitted.

According to the present embodiment, instead of cutting the single line of the communication line 268 and the conductor 269 into two stages and cutting one single line, the coating 268 and the line 269 are cut into one cut groove 32.
It can be cut by 0. Accordingly, there is no need to form the enlarged cut portion 166 or the inclined portion 168, and the cut groove 320
Can be simplified.

[0070]

Since the present invention is configured as described above, it has the following effects. Claim 1
According to the described invention, without using a cutting tool or the like,
A connection terminal that can disconnect a communication line can be provided.

According to the second aspect of the present invention, it is possible to provide a connection terminal that can cut the end of a communication line by simply pushing the communication line in and can hold the connection state reliably. According to the invention described in claim 3,
Provide a connection terminal that can cut the end of a communication line with a simple structure, just push it in, and can also hold the connection in a reliable conductive state, facilitating the work of connecting the communication line. can do.

According to the fourth aspect of the present invention, by simply pushing in the communication line, it is possible to cut off the tip of the communication line and to maintain the conductive state with a simple structure. A connection terminal capable of facilitating a connection operation can be provided. According to the fifth aspect of the present invention, it is possible to provide a connection terminal that can cut a coating of a communication line only by pushing a single line of the communication line and can obtain a reliable conduction state.

According to the sixth aspect of the present invention, it is possible to provide a connection terminal capable of easily performing the work of mounting the connection terminal.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a connection terminal according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the connection terminal in a long state before bending according to the first embodiment of the present invention.

FIG. 3 is a schematic wiring diagram showing a telephone line using a terminal board of a telephone line terminal according to the first embodiment of the present invention.

FIG. 4 is a plan view showing a terminal board of a telephone line terminal according to the first embodiment of the present invention.

FIG. 5 is an exploded perspective view showing a telephone line terminal according to the first embodiment of the present invention.

FIG. 6 is a perspective view of the first embodiment of the present invention, showing a use state of a connecting tool housed in a telephone line terminal.

FIG. 7 is an external perspective view showing a connection terminal according to a second embodiment of the present invention.

FIG. 8 is a plan view showing a connection terminal in a long state before bending according to the second embodiment of the present invention.

FIG. 9 is an external perspective view showing a connection terminal according to a third embodiment of the present invention.

FIG. 10 is a plan view showing a sheet-like connection terminal according to a third embodiment of the present invention.

FIG. 11 is a plan view showing an insulating substrate of a telephone line terminal according to a third embodiment of the present invention.

FIG. 12 is a perspective view illustrating a connection terminal according to a fourth embodiment of the present invention.

FIG. 13 is a plan view showing a sheet-like connection terminal according to a fourth embodiment of the present invention.

FIG. 14 is an external perspective view showing a connection terminal according to a fifth embodiment of the present invention.

FIG. 15 is a plan view showing a connection terminal in a long state before bending according to a fifth embodiment of the present invention.

FIG. 16 is a wiring diagram showing an analog communication line using a conventional telephone line terminal.

FIG. 17 is a perspective view showing a connection terminal used in a conventional telephone line terminal.

FIG. 18 is a plan view showing a terminal board used for a conventional telephone line terminal.

FIG. 19 is a plan view showing connection to a terminal board in a conventional telephone line terminal.

FIG. 20 is a perspective view showing a state of connection work to a conventional telephone line terminal.

[Explanation of symbols]

100 8 station terminal 110 Terminal board 115 Insulated board 121-128 Printed wiring 131-138 Lead 141-148 Printed wiring 151 Terminating resistor 155 Small switch 158 Auxiliary lead 161 Connection terminal 162 Top 163 Standing wall 165 Fixed leg 166 Enlarge Cut part 167 Narrow cut part 168 Inclined part 171 Knife edge for sheath cutting 172 Knife edge for conductor cutting 173 Conductor supporting part 209 Board 210 Terminal box 213 Mounting frame 215 Lid 216 Locking part 217 Plate 220 Jig 221 Tip 223 Recess 225 Split groove 227 Press pin 229 Grip 230 Connecting tool 231 Tip 233 Depressed 235 Split groove 237 Press pin 239 Driver insertion hole 241,243 Protector 245 Digital line termination device 249 Local line 251-254 Modular jack outlet 261-264 Indoor wiring 268 Insulation 269 Conductor 310 Holding groove 320 Cutting groove 330 U-shaped main body 331 Outer folded piece 332 Inner folded piece 340 Connection terminal 341 Contact portion 342 conductive sheet 343 screw hole

Claims (6)

[Claims] 1. A connection terminal for connecting an end of a communication line to an insulating substrate housed in a terminal box, the connection terminal comprising: a groove-shaped holding groove for holding the communication line in a conductive state; A cutting groove adjacent to the holding groove, the cutting terminal having a knife edge capable of cutting a communication line at a part of a side edge. 2. The holding groove has an enlarged notch portion wider than a single line diameter of the communication line, a U-groove-shaped wire support portion slightly smaller than a conductor wire diameter, and an inclined portion between the enlarged notch portion and the wire support portion. The inclined portion is provided with a knife-shaped knife edge for cutting a single line of a communication line on both side edges thereof, and the cutting groove cuts a conductive wire on both side edges thereof. 2. The connection terminal according to claim 1, further comprising a knife-shaped knife edge for cutting a conductive wire, the width of the knife edge for cutting the conductive wire being gradually reduced. 3. A connection terminal comprising: a substantially U-shaped main body in which two substantially parallel standing walls are connected to each other at an upper portion; A folded-out outer folded piece, and an enlarged cut portion that opens upward is formed on the upper surface of the U-shaped main body, and the upright wall portion has an enlarged cut portion on the upper surface and the enlarged cut portion. The connection terminal according to claim 2, wherein a holding groove including a continuous inclined portion and a conductor supporting portion is formed, and a cut groove that opens upward is formed in the outer folded piece. 4. A connection terminal comprising: a substantially U-shaped main body in which two substantially parallel standing walls are connected by an upper portion; a connection terminal extending from one end of the U-shaped body toward the inside of the U-shaped main body. And a folded back portion, and an enlarged cut portion is formed on the upper surface of the U-shaped main body, and an enlarged cut portion on the upper surface and a downward direction from the enlarged cut portion on one of the upright walls. A holding groove composed of a continuous and inclined portion and a conductor supporting portion is formed. A cutting groove that opens upward is formed on the other of the upright wall portion, and an opening that opens upward on the inner folded piece. 3. The connection terminal according to claim 2, wherein a holding groove including an enlarged cut portion, an inclined portion continuous downward from the enlarged cut portion, and a conductor supporting portion is formed. 5. The connection terminal according to claim 3, wherein the vertical wall portions of the U-shaped main body are spaced apart from each other as they are located below. 6. A connection terminal comprising: a connection terminal portion having a pair of holding grooves and a cutting groove; and a connection portion connecting between the connection terminal portions, wherein the connection terminal portion and the connection portion are formed of a single conductive member. The connection terminal according to claim 3 or 4, wherein a plurality of sets of a pair of holding grooves and cutting grooves are formed on the sheet, and the U-shaped main body and the folded pieces are formed by punching and bending.