JPH0963664A - Connecting terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a wire insertion space in a simple operation, and to facilitate the insertion of a conductor so as to facilitate the connecting work. SOLUTION: While one side ends of a fixed piece 2 and a movable piece 3 are made in free ends, the other side ends of the fixed piece 2 and the movable piece 3 are connected by a circular arc form of connecting spring 4 integrally. A pair of connecting output pieces 5 are output from both sides of the free end of the fixed piece 2 in the width direction to stride the movable piece 3. The tips of the connecting output pieces 5 are connected integrally each other by a connecting member 6. While a locking member 7 opposing to the movable piece 3 is provided to the connecting member 6, the space between the movable piece 3 and the locking member 7 is made as the conductor holding part. A conductor is inserted between the movable piece 3 and the locking member 7 of a connecting terminal A composed in the said manner, and the conductor is connected by its springing function.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection terminal for connecting two conductors in an overlapping manner.

[0002]

2. Description of the Related Art As a conventional connection terminal A'of this type,
As shown in FIG. 16, there is one in which one plate member having a spring property is bent and integrally formed. That is, the vertical piece a, the horizontal piece b, and the diagonal piece c are bent into a substantially right-angled triangular shape, and the protrusion e at the tip of the horizontal piece b is slidable in the square hole d provided in the vertical piece a. It has been inserted. The lower edge of the square hole d is a locking portion f, and the conductor is sandwiched between the projecting piece e and the locking portion f. That is, when pressed and deformed as shown by the arrow in FIG. 17, the protruding piece e and the locking portion f are separated from each other to secure the entry space S, and a pair of protruding pieces e and the locking portion f are provided. When the conductors are inserted and separated, the pair of conductors are sandwiched and connected by the spring property.

[0003]

However, when the connecting terminal A'having the above structure is pushed by a driver as shown by an arrow in the state as shown in FIG. It cannot be deformed so that there is a gap between the lock part f and the locking part f, but since the conductor is inserted in the part indicated by reference sign g in FIG. 18A, the horizontal piece b cannot be supported by this part. . Therefore, a special housing is required to support the horizontal piece b, and the connection terminal A'cannot be connected alone, resulting in a problem that the connection device becomes large. In addition, by changing the direction of the connection terminal A ', the oblique piece c is placed on the base h such as a desk or a table as shown in FIG. 18 (b), and the projecting piece e is pushed in the direction of the arrow with a screwdriver or the like to form the protruding piece e. When the wire entry space S is secured with a gap from the lock part f, there is a problem that the place where the conductor is inserted and the place where the conductor is pushed overlap with each other, which hinders the connection and makes the connection work difficult. Further, in the above-mentioned connection terminal A ', there is only one place for sandwiching and holding the conductor 1 as shown in FIG. 18C, and when connecting the conductor 1 having flexibility, the conductor contact portion is only on a straight line. However, there is a problem that connection reliability is low.

The present invention has been made in view of the above problems, and it is an object of the present invention to secure a wire entry space by a simple operation, facilitate conductor wire entry, and facilitate connection work. .

[0005]

In order to solve the above-mentioned problems, the connection terminal A of the present invention is a connection terminal integrally formed by bending a single plate material having a spring property, and is a fixed piece facing each other. 2 and one end of the movable piece 3 are free ends, and the other ends of the fixed piece 2 and the movable piece 3 are integrally connected by an arcuate connecting spring portion 4 so that the fixed piece 2 can be moved from both sides of the free end in the width direction. A pair of continuous pieces 5 are continuously extended so as to straddle the pieces 3, and the tips of the continuous pieces 5 are integrally connected by a connecting portion 6, and the connecting portion 6 is provided with a locking portion 7 facing the movable piece 3. It is characterized in that the movable piece 3 and the locking portion 7 serve as a conductor holding portion. The connection terminal A configured as described above is configured such that the movable piece 3 is bent and deformed toward the fixed piece 2 side by sandwiching the free end side of the movable piece 3 and the fixed piece 2 with a tool such as a radio pliers 8 and the movable piece 3 is deformed. A space is provided between the lock part 7 and the lock part 7 to secure an entry space S, and the movable piece 3
The conductor 1 can be sandwiched between the movable piece 3 and the locking portion 7 by inserting the conductor 1 between the locking portion 7 and the locking portion 7 and releasing the tool. As a result, the connecting terminal A alone becomes the conductor 1.
Connection can be made and the connecting device does not become large in size, and the tool does not interfere with the wire entry of the conductor 1 when the wire entry space S is opened for connection, and the connection work can be facilitated.

It is also preferable that the connecting portion 6 is integrally provided with a bent portion 9 for increasing the contact area. In this case, the locking portion 7 and the bent portion 9 can be brought into contact with the conductor 1, and the reliability of the connection can be improved even with the flexible conductor 1. It is also preferable that a knurled surface 10 is provided on the surface of the movable piece 3 on the locking portion 7 side. In this case, the knurled surface 10 can be provided with friction to prevent the conductor 1 from being displaced.

Further, it is also preferable that the movable piece 3 is provided with a positioning hole 11 for positioning the terminal of the conductor 1. In this case, if a protrusion is provided on the terminal of the conductor 1, the protrusion can be fitted into the positioning hole 11 to position the conductor 1. Further, another connection terminal A of the present invention is a connection terminal integrally formed by bending one plate material having a spring property, and has one end of the fixed piece 2 and the movable piece 3 facing each other as a free end. The other ends of the fixed piece 2 and the movable piece 3 are integrally connected by an arc-shaped connecting spring portion 4, and the free piece side of the fixed piece 2 and the connecting spring portion 4 side respectively extend over the movable piece 3 so as to extend over the movable piece 3. 5, the movable piece 3 is connected to both sides of the movable piece 3 on the free end side and the continuous piece 5 on the side of the connecting spring portion 4 by a connecting portion 6.
A locking portion 7 facing the movable piece 3 is provided on the movable piece 3
It is characterized in that a conductor holding portion is provided between the locking portion 7 and the locking portion 7. In the connection terminal A thus configured, the movable piece 3 is bent and deformed to the fixed piece 2 side by a tool to secure an entry space S with a space between the movable piece 3 and the locking portion 7.
By inserting the conductor 1 between the movable piece 3 and the locking portion 7 and releasing the tool, the conductor 1 can be sandwiched between the movable piece 3 and the locking portion 7 to connect the conductor 1. As a result, the conductor 1 can be connected by the connection terminal A alone, the connecting device does not become large, and the tool does not interfere with the entry of the conductor 1 when connecting with the entry space S open. Can be done easily. Moreover, since the locking portions 7 are provided on both sides of the movable piece 3, the conductor 1 can be sandwiched at two places to improve the connection reliability.

The connection terminal having the above structure is also preferably characterized in that the surface of the movable piece 3 on the side of the locking portion 7 is provided with the knurled surface 10, and the terminal of the conductor 1 is positioned on the movable piece 3. It is also preferable that the positioning hole 11 is provided. Further, the projecting piece 12 is provided so as to project from the tip of the movable piece 3 toward the side opposite to the fixed piece 2, and the auxiliary holding piece 13 is continuously extended from the tip of the projecting piece 12 so as to be substantially parallel to the movable piece 3. Is also preferable. In this case, the conductor 1 can be held by the auxiliary holding piece 13 while the conductor 1 is sandwiched between the movable piece 3 and the locking portion 7, and the conductor 1 can be held stably.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an example of the connection terminal A shown in FIG. 1 will be described. The connection terminal A is formed by integrally bending a single metal plate having a spring property. The fixed piece 2 and the movable piece 3 are arranged so as to face each other, one end of the fixed piece 2 and the movable piece 3 is a free end, and the other end of the fixed piece 2 and the movable piece 3 is an arc-shaped connecting spring portion. Connected together at 4. The continuous piece 5 is continuously extended from both sides of the fixed piece 2 on the free end side so as to straddle the movable piece 3, and the tips of the continuous piece 5 are integrally connected by a connecting portion 6. A projecting piece portion 14 having a substantially U-shaped cross section is projected from the connecting portion 6, and a locking portion 7 is provided at the tip of the projecting piece portion 14. A bent portion 9 that contacts the conductor 1 is provided on the base side of the protruding piece portion 14. A portion of the fixed piece 2 or the movable piece 3 that protrudes from the continuous piece 5 serves as a grip margin for the radio pliers 8.
An inclined portion 15 that inclines toward the fixed piece 2 side is provided at the tip of the grip portion of the movable piece 3, and a slip prevention bent portion 16 is provided at the tip of the inclined portion 15. Further, pressing pieces 17 projecting from opposite sides of the movable piece 3 to the opposite side of the fixed piece 2 are provided. In addition, the movable piece 3 has a spring property of the connecting spring portion 4 and has a locking portion 7.
When the fixed piece 2 is in contact with the fixed piece 2 with respect to a line parallel to the longitudinal direction of the movable piece 3, the fixed piece 2 is inclined at an angle α.

Next, a method of connecting the pair of conductors 1 by using the connection terminal A configured as described above will be described. An example of operation using the radio pliers 8 as a tool will be described. FIG.
As shown in (a), the free margin side of the fixed piece 2 and the movable piece 3 is gripped by the radio pliers 8, and the movable piece 3 is flexibly deformed so as to come close to the fixed piece 2, and the movable piece 3 and the chain. An entry space S is secured with a space from the lock 7. Then, the pair of conductors 1 is inserted between the movable piece 3 and the locking portion 7, and the radio pliers 8 are released. Then, as shown in FIG. 2B, the pair of conductors 1 are sandwiched by the spring property between the movable piece 3 and the locking portion 7 to connect the pair of conductors 1. At this time, not only the conductor 1 is sandwiched between the locking portion 7 and the movable piece 3,
The bent portion 9 is brought into contact with the conductor 1, and the conductor 1 is also sandwiched between the bent portion 9 and the movable piece 3 to improve the reliability of connection.
Further, when the radio pliers 8 are gripped, the radio pliers 8 do not interfere with the entry of the conductor 1 because the inclined portion 15 is provided at the tip of the movable piece 3. Even if the inclined portion 15 is provided, since the anti-slip bent portion 16 is provided at the tip of the inclined portion 15, the adverse effect of slipping off the radio pliers 8 does not occur. Further, since the fixed piece 2 is inclined at an angle of α, it is possible to make a displacement when it is bent by the radio pliers 8, and a strong pinching force can be obtained even if the conductor 1 is thin.
A case where the U-shaped special tool 30 is used as the tool will be described. In this case, the connection terminal A is arranged so that the fixing piece 2 is placed on the base 33 such as a desk or a table, and the dedicated tool 3
Both side pieces of 0 are brought into contact with the pressing piece 17 as shown in FIG.
The pressing piece 17 is pushed by the dedicated tool 30 to bend the movable piece 2 to make a gap between the locking portion 7 and the movable piece 3 to form an entry space S, and between the locking portion 7 and the movable piece 3. A pair of conductors 1
To release the pressing force of the special tool 30,
The conductor 1 is sandwiched between and the locking portion 7 and the bent portion 9.

FIGS. 4 and 5 show the structure of a relay unit for connecting the conductor 1 using the connection terminal A.
A terminal 1a as one conductor 1 is projected from the relay 18, and one end of the braided copper wire 1b as the other conductor 1 and the terminal 1a are overlapped and connected at the connection terminal A as described above. . The other end of the braided copper wire 1b is also connected to the terminal board 19 by the connection terminal A. Further, in the figure, 20 and 21 are cases for accommodating relays, 22 is terminal screws of the terminal board 19, and 23.
Is a washer of the terminal board 19, 24 is a partition wall, 25 is a printed board,
26 is a terminal plate, 27 is a washer, 28 is a terminal screw, and 29 is a partition.

6 and 7 show an example in which the connection terminal A of FIG. 1 is further improved. In the structure shown in FIG. 6, a knurled surface 10 is provided on the entire surface of the movable piece 3 on the locking portion 7 side. By doing so, it is possible to prevent the conductor 1 from slipping when the conductor 1 is connected. Further, in the structure shown in FIG. 7, the movable piece 3 is provided with a positioning hole 11. In this case, if a protrusion is provided on the terminal or the like of the conductor 1, the conductor 1 can be positioned by fitting the protrusion into the positioning hole 11.

Next, another connection terminal A shown in FIG. 8 will be described. The connection terminal A is also formed by bending a single metal plate having spring properties integrally. The fixed piece 2 and the movable piece 3 are arranged so as to face each other, one end of the fixed piece 2 and the movable piece 3 is a free end, and the other end of the fixed piece 2 and the movable piece 3 is an arc-shaped connecting spring portion. Connected together at 4. The continuous piece 5 is extended from both sides of the fixed piece 2 on the free end side and on both sides of the connection spring portion 4 side so as to straddle the movable piece 3, and the continuous piece 5 and the connection spring on the free end side are connected to each side. The connecting piece 6 with the continuous piece 5 on the side of the section 4
Are integrally connected with each other, and a portion of the connecting portion 6 facing the movable piece 3 is a locking portion 7. Further, projecting portions 31 are provided on both sides of the movable piece 3 so as to project laterally. A projecting piece 12 is provided so as to project substantially vertically from the end of the movable piece 3 on the free end side to the side opposite to the fixed piece 2. Further, when the protruding portion 31 of the movable piece 3 is in contact with the locking portion 7 due to the elasticity of the connecting spring portion 4, the fixed piece 2 is spread so as to spread along the line parallel to the longitudinal direction of the movable piece 3. The angle is inclined.

Next, a method of connecting the pair of conductors 1 using the connection terminal A configured as described above will be described. An example of operating using the minus driver 32 as a tool will be described. As shown in FIG. 9A, the connection terminal A is arranged so that the fixed piece 2 is placed on the base 33 such as a desk or a table, and the tip of the minus driver 32 is brought into contact with the free end of the movable piece 3 so that the minus driver 32, the movable piece 3 is pushed and flexibly deformed so that the movable piece 3 comes close to the fixed piece 2, and the movable piece 3 and the locking portion 7 are moved.
A line-in space S is secured as shown in FIG. Movable piece 3 with a flat-blade screwdriver 32
Since there is the protrusion 12 when pressing, the tip of the minus driver 32 can be guided by the protrusion 12, and the operation by the minus driver 32 is stable and easy to work. After securing the entry space S, the pair of conductors 1 are attached to the movable piece 3 and the locking portion 7.
It is inserted between and and the pressing by the flat-blade screwdriver 32 is released. Then, the space between the movable piece 3 and the locking portion 7 shown in FIG.
As shown in (c), the pair of conductors 1 are sandwiched by the spring property to connect the pair of conductors 1. At this time, the lock parts 7 on both sides
Since the conductor 1 is sandwiched between the movable piece 3 and the movable piece 3, the conductor 1 is sandwiched at two places, and the reliability of the connection is improved. Further, since the fixing piece 2 is inclined by the angle α, it is possible to obtain a displacement when the fixing piece 2 is bent by the minus driver 32, and a strong pinching force can be obtained even if the conductor 1 is thin. Further, a case where the radio pliers 8 are used as a tool will be described.
A radio pliers 8 clamps between the free end side of the fixed piece 2 and the protruding piece 12 of the movable piece 3, and the movable piece 3 is bent to open a gap between the locking portion 7 and the movable piece 3. As shown in FIG. 10, the entry space S is opened, the pair of conductors 1 is inserted between the locking portion 7 and the movable piece 3 to release the pinching by the radio pliers 8, and the movable piece 3 and the locking portion 7 are separated from each other. The conductor 1 is sandwiched between them.

FIGS. 11 and 12 show the structure of a relay unit for connecting the conductor 1 using the connection terminal A. This is different only in the structure of the connection terminal A and the other parts are the same as those shown in FIG. 4 and FIG. 13, 14, and 1
5 shows an example in which the connection terminal A of FIG. 8 is further improved.
In FIG. 13, the knurled surface 10 is provided on the entire surface of the movable piece 3 on the side of the locking portion 7 so as to prevent the conductor 1 from slipping when the conductor 1 is connected. As shown in FIG. 14, the movable piece 3 is provided with a positioning hole 11, and the projection of the terminal of the conductor 1 is fitted into the positioning hole 11 so that the conductor 1 can be positioned. In FIG. 15, the auxiliary holding piece 13 is continuously extended from the tip of the projecting piece 12 of the movable piece 3 so as to be parallel to the movable piece 3. in this case,
The conductor 1 can be held by the auxiliary holding piece 13 while the conductor 1 is sandwiched between the locking portion 7 and the movable piece 3, and the conductor 1 can be held stably.

[0016]

The connection terminal of the invention of claim 1 of the present invention is
One end of the fixed piece and the movable piece facing each other is made a free end, and the other end of the fixed piece and the movable piece are integrally connected by an arc-shaped connecting spring part, and the movable piece is attached from both sides in the width direction of the free end of the fixed piece. A pair of continuous pieces are continuously extended so as to straddle, the ends of the continuous pieces are integrally connected by a connecting portion, and the connecting portion is provided with a locking portion facing the movable piece, and between the movable piece and the locking portion. Since it is a conductor holding part, by sandwiching the free end side of the movable piece and the fixed piece with a tool such as radio pliers, the movable piece is bent and deformed to the fixed piece side, so that the interval between the movable piece and the locking part is increased. It is possible to connect the conductor by sandwiching the conductor between the movable piece and the locking part by opening the opening and ensuring the entry space, inserting the conductor between the movable piece and the locking part and releasing the tool. Therefore, the connection terminal alone can connect the conductor and the connection device does not become large. Without tool gets in the way incoming line conductor when connecting spaced pace, in which connection work can be easily.

According to the second aspect of the present invention, in the first aspect, since the bending portion for increasing the contact area is integrally provided in the connecting portion, the locking portion and the bending portion are formed of a conductor. It is possible to improve the reliability of the connection even with a flexible conductor. In the invention according to claim 3 of the present invention, in claim 1, since the knurled surface is provided on the surface of the movable piece on the side of the locking portion, friction is applied to the knurled surface to prevent the conductor from shifting. It is possible.

Further, in the invention according to claim 4 of the present invention, in claim 1, since the movable piece is provided with a positioning hole for positioning the terminal of the conductor, if a protrusion is provided on the terminal of the conductor. The conductor can be positioned by fitting the protrusion into the positioning hole. In the invention according to claim 5 of the present invention, one end of the fixed piece and the movable piece which face each other is made a free end, and the other end of the fixed piece and the movable piece are integrally connected by an arc-shaped connecting spring portion. , The free end side of the fixed piece and the connecting spring portion side, respectively, so as to straddle the movable piece, respectively, the continuous piece is continuously extended,
On both sides of the movable piece, the continuous piece on the free end side and the continuous piece on the connection spring portion side are connected by a connecting portion, and a locking portion facing the movable piece is provided at the connecting portion and the movable piece and the locking portion are provided. Since the conductor holding part is between the movable part and the locking part, the movable part is bent and deformed toward the fixed part side by a tool to secure a space for entry between the movable part and the locking part. The conductor can be connected by sandwiching the conductor between the movable piece and the lock part by inserting the conductor between and and releasing the tool. The device does not become large in size, and the tool does not interfere with the conductor wire entry when connecting with a wire entry space, and the connection work is easy. Since the conductors are on both sides, it is possible to improve the reliability of the connection by sandwiching the conductor in two places.

Further, in the invention according to claim 6 of the present invention, in claim 5, since the knurled surface is provided on the surface of the movable piece on the side of the locking portion, the conductor is provided by giving friction to the knurled surface. The deviation can be prevented. Further, in the invention according to claim 7 of the present invention, since the positioning hole for positioning the terminal of the conductor is provided in the movable piece in claim 5, if the terminal of the conductor is provided with the projection, the projection is formed. The conductor can be positioned by fitting into the positioning hole.

Further, in the invention according to claim 8 of the present invention, a projecting piece is provided so as to project from the tip of the movable piece toward the side opposite to the fixed piece, and the tip of the projecting piece is substantially parallel to the movable piece. Since the auxiliary holding piece is continuously provided, the conductor can be held by the auxiliary holding piece in a state where the conductor is held between the movable piece and the locking portion, and the conductor can be held stably.

[Brief description of drawings]

FIG. 1 shows a connection terminal of an example of the present invention, (a) is a perspective view and (b) is a front view.

FIG. 2A is a front view of a connection terminal in which a wire plier is used to secure an entry space, and FIG. 2B is a perspective view of a connection terminal in which a conductor is connected.

FIG. 3 (a) is a perspective view showing a state in which a wire-entry space is secured for a connection terminal with a U-shaped dedicated tool, and FIG. 3 (b) is a front view in a state where the wire-entry space is secured.

FIG. 4 is an exploded perspective view of a relay unit using the connection terminal of FIG.

5 is a front view in the middle of assembly of FIG. 4. FIG.

FIG. 6 is a perspective view of a modified example of the example of FIG.

FIG. 7 is a perspective view of a modified example of the example of FIG.

FIG. 8 shows a connection terminal of another example of the above, (a) is a perspective view and (b) is a front view.

9 (a) and 9 (b) are front views showing a state in which a minus driver is used to secure an entry space for a connection terminal, and FIG. 9 (c) is a perspective view showing a state in which a conductor is connected to the connection terminal.

FIG. 10 is a front view showing a state in which an entry space is secured in the connection terminal with radio pliers.

FIG. 11 is an exploded perspective view of a relay unit using the connection terminal of FIG.

FIG. 12 is a front view in the middle of assembly of FIG.

FIG. 13 is a perspective view of a modified example of the example of FIG.

FIG. 14 is a perspective view of a modified example of the example of FIG.

FIG. 15 is a perspective view of a modified example of the example of FIG.

FIG. 16 shows a connection terminal of a conventional example, (a) is a perspective view,
(B) is a front view.

FIG. 17 is a front view of a connection terminal of a conventional example in which a wire entry space is secured.

18 (a), (b) and (c) are explanatory views for explaining the problem of the conventional example.

[Explanation of symbols]

 A connection terminal 1 conductor 2 fixed piece 3 movable piece 4 connecting spring part 5 continuous piece 6 connecting part 7 locking part 8 radio pliers 9 bending part 10 knurling surface 11 positioning hole 12 projecting piece 13 auxiliary holding piece

Claims (8)

[Claims] 1. A connection terminal integrally formed by bending a plate material having a spring property, wherein one end of a fixed piece and a movable piece facing each other is a free end, and the other of the fixed piece and the movable piece. The ends are connected together with an arc-shaped connecting spring part, and a pair of continuous pieces are connected so as to straddle the movable piece from both sides of the free end of the fixed piece in the width direction. A connection terminal, which is integrally connected, wherein a locking portion facing the movable piece is provided at the connecting portion, and a conductor holding portion is provided between the movable piece and the locking portion. 2. The connection terminal according to claim 1, wherein the connecting portion is integrally provided with a bent portion for increasing a contact area. 3. The connection terminal according to claim 1, wherein a knurled surface is provided on a surface of the movable piece on the locking portion side. 4. The connection terminal according to claim 1, wherein the movable piece is provided with a positioning hole for positioning the terminal of the conductor. 5. A connection terminal integrally formed by bending a plate material having a spring property, wherein one end of a fixed piece and a movable piece facing each other is a free end, and the other of the fixed piece and the movable piece. The end portions are integrally connected by an arcuate connecting spring portion, and the continuous piece is continuously extended so as to straddle the movable piece from the free end side and the connecting spring portion side of the fixed piece, and the free end side is formed on each side of the movable piece. The connecting piece and the connecting piece on the side of the connecting spring portion are connected by the connecting portion, and the connecting portion is provided with a locking portion facing the movable piece, and the movable piece and the locking portion serve as a conductor holding portion. A connection terminal characterized in that. 6. The connection terminal according to claim 5, wherein a knurled surface is provided on a surface of the movable piece on the locking portion side. 7. The connection terminal according to claim 5, wherein the movable piece is provided with a positioning hole for positioning the terminal of the conductor. 8. A projecting piece is provided so as to project from a tip of the movable piece toward a side opposite to the fixed piece, and an auxiliary holding piece is continuously extended from the tip of the projecting piece so as to be substantially parallel to the movable piece. The connection terminal according to claim 5.