JPH0625894Y2 - Wedge type branch connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a branch line connector used for connecting a trunk line and a branch line.

(Prior Art) Conventionally, in order to connect a trunk line and a branch line, a screw tightening type branch line connector has been used, or a sleeve connection system by compression has been adopted.

(Problems to be solved by the invention) However, such a conventional technique has the following problems.

First, with the screw tightening type branch line connector, the number of man-hours for screw tightening is large, and it takes time to complete the connection. In addition, the screws may be loosened to cause poor connection or the wires may be dropped.

In addition, according to the sleeve connection method by compression, a dedicated compression tool is required for connection work, and further, once compressed, it cannot be removed.

(Means for Solving the Problem) The present invention has been made in view of the above point, and can easily and quickly connect branch lines without requiring a special tool.
Moreover, a branch line connector that can maintain a good connection state and can be detached is provided to solve the problem.

Therefore, in this invention, a guide pin is provided between the main conductor and an appropriate locking body which is provided on one side surface of the main conductor at a position opposed to each other with a gap, and the guide pin is slidable along the guide pin. Provide a tightening conductor around the guide pin so that
Further, the tightening conductor is biased in a direction away from the main conductor by a spring member, and electric wire gripping grooves are provided in the main conductor and the tightening conductor so as to face each other. One of the opposing surfaces is inclined, and a wedge-shaped cross section is provided between them, and the pressure contact plate is arranged so that the guide pin freely penetrates into the long hole formed in the pressure contact plate. In addition, the pressure contact plate has a wedge-shaped cross-section, and an appropriate hole is formed in the thickness direction of the pressure contact plate following the elongated hole, and a stopper member having a shape that can be housed in the hole is attached to the tightening conductor. It is provided in a storage portion around the guide pin so as to be slidable along the guide pin, and the stopper member is further urged toward the pressure contact plate.

The main conductor and an appropriate locking body that is in an oblique relationship with the main conductor may be integrally molded with the main conductor.

Regarding the wire grip groove that will hold the wire,
It may be provided on at least one of the main conductor and the tightening conductor, or both of them.

An example of the stopper member is a ring-shaped member in which the guide pin freely penetrates. Then, for example, if a hole is bored on the locking body side of the tightening conductor as a storage part, such a ring-shaped stopper member is inserted in this hole, and a coil spring is inserted between the bottom surface of the hole and the stopper member. It is possible to obtain a structure in which the pressing plate can be constantly urged.

Further, in addition to the above-described configuration, the pressure contact plate and the tightening conductor may configure the contact surfaces of the pressure contact plate and the tightening conductor so as to fit in a substantially V shape when viewed from the longitudinal direction of the elongated hole in the pressure contact plate. .

(Function) If a main line and a branch line to be branched and connected are inserted between the main conductor and the tightening conductor and the press contact plate is driven in, the press contact plate has a wedge-shaped cross section, so that the tightening conductor is strongly the main conductor. Both wires are firmly gripped by being pressed against and are branched and connected. In this case, the wire does not unnecessarily shift due to the wire grip groove. When the wire holding groove is provided in both the main conductor and the tightening conductor, the effect is further increased.

If the hole following the elongated hole reaches around the guide pin by driving in the pressure contact plate, the stopper member that had been housed in the storage part of the tightening conductor will enter into the hole by the urging force, resulting in the pressure contact. The plate is locked and the state at that time is maintained. Therefore, the gripped state of the electric wire is not loosened.

When the contact surface of the press-contact plate and the tightening conductor are configured so as to fit in a substantially V shape, when the gripped wire is tensioned, the tightening conductor is further connected to the wire due to the slope of the wire. Is pressed to increase the gripping force.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. The main conductor 1 in this embodiment is a box-like body having an opening at the top and a window 2 at the bottom, and a rear side plate 3 thereof.
Is a locking body, and the rear side plate 3 is in an oblique relationship with the front side plate 4 at a certain angle.

An electric wire gripping groove 5 is provided inside the front side plate 4 on the lower side, that is, on the window 2 side, while the opening side end of the front side plate 4 is squeezed forward to facilitate the insertion of the main line. . It should be noted that the surface of the wire grip groove 5 is subjected to wire slip prevention processing. Both side plates 6 and 7 of the main conductor 1 are provided with an insertion hole 8 in the lower part and a notch 9 having a substantially 3/4 circular shape in the upper part. A guide pin 10 having a screw thread at its tip penetrates from the substantially outer center of the front side plate 4 to the rear side plate 3, and the tip is screwed to the rear side plate 3. It should be noted that the rear side plate 3 is provided with appropriate through holes 25 and 26 near the tip screwed portion of the guide pin 10.

The head 11 of the guide pin 10 is provided with a groove 12 so that the guide pin 10 can be freely removed by a driver or the like. The head portion 11 of the guide pin 10 itself is housed in a hole 13 formed in the outside center of the front side plate 4, and the bottom portion of the hole 13 has a diameter smaller than that of the hole 13 and smaller than the diameter of the guide pin 10. A large diameter hole 14 is drilled.

Reference numeral 15 is a tightening conductor, which has a size and shape that can be accommodated in the main conductor 1, and is slidable between the front side plate 4 and the rear side plate 3 of the main conductor 1 along the guide pin 10. Further, a coil spring 16 is provided around the guide pin 10 between the tightening conductor 15 and the head portion 11 of the guide pin 10, and the tightening conductor 15 is always attached to the rear side plate 3 side of the main conductor 1. It is energized.

A wire gripping groove 17 is formed on the front side plate 4 side of the tightening conductor 15 at a position facing the wire gripping groove 5, and a wire gripping groove 18 is formed on the opening side of the main conductor 1. These wire grip grooves 17, 18
The surface of each is treated to prevent electric wires from slipping. A storage hole 19 is provided around the guide pin 10 on the rear side plate 3 side of the tightening conductor 15. A rectangular stop ring 20 serving as a stopper member is housed in the storage hole 19 so as to be slidable on the guide pin 10, and further between the stop ring 20 and the stepped portion of the guide pin 10. A coil spring 21 is arranged around the guide pin 10 to constantly urge the stop ring 20 toward the rear side plate 3 side. The stop ring 20 is such that the surface of the main conductor 1 on the side of the window 2 is tapered. As shown in FIG. 3, the surface of the tightening conductor 15 on the rear side plate 3 side is formed in a gentle V-shape which is convex outward (on the rear side plate 3 side).

The tightening conductor 15 and the rear side plate 3 of the main conductor 1 having the above structure
A pressure contact plate 22 is provided between the pressure contact plate 22 and. This pressure plate 22 is the third
As shown in FIG. 5 and FIG. 5, it has a wedge-shaped vertical section, and the surface on the tightening conductor 15 side is concave in the same side and is formed into a gentle V-shape that matches the tightening conductor 15. . The angle between the slopes matches the angle formed by the rear side plate 3 and the front side plate 4 of the main conductor 1 described above. As shown in FIG. 4, a long hole 23 is bored from the approximate center of the press contact plate 22 to the thin portion, and a hole 24 is bored following the long hole 23. The press contact plate 22 is accommodated between the tightening conductor 15 and the rear side plate 3 of the main conductor 1 so that the guide pin 10 freely penetrates into the elongated hole 23.

Therefore, if the pressure contact plate 22 is driven into the window portion 2 side of the main conductor 1, the tightening conductor 15 is pressed against the front side plate 4 of the main conductor 1 in parallel against the biasing force of the coil spring 16. It goes. Further, as shown in FIG. 5, when the position of the guide pin 10 is located in the long hole 23 of the press contact plate 22, the stop ring 20 is housed in the housing hole 19 of the tightening conductor 15. However, as the pressure contact plate 22 is driven in, the edge of the stop ring 20 on the side of the window 2 is a hole as shown in FIG.
When it reaches the inside of 24, it is pushed out into the hole 24 of the pressure contact plate 22 by the bias of the coil spring 21, and the pressure contact plate 22 is locked.

The present embodiment is configured as described above, and the state of FIG. 5 is the state of preparation for connection. For branch connection, the main line 31 to be connected is cut from the opening of the main conductor 1 to the cutout 9. Then, the branch wire 32 is inserted through the insertion hole 8 of the main conductor 1 and placed between the wire gripping grooves 5 and 17. After that, the press contact plate 22 may be driven in. Then, the tightening conductor 15 is strongly pressed against the front side plate 4 side of the main conductor 1 by the wedge action, and the trunk line 31 is between the electric wire grip groove 18 and the front side plate 4, while the branch line 32 is the electric wire grip groove 5. , 17 is firmly gripped, and the branch connection of both lines is performed.

In this case, when the pressure contact plate 22 is driven in, the stop ring 20 is eventually pushed out into the hole 24 of the pressure contact plate 22 and the pressure contact plate 22 is locked, so that the pressed state of the tightening conductor 15 is maintained as it is. Therefore, the firm gripping state of the trunk line 31 and the branch line 32 does not loosen. FIG. 6 shows a state in which the pressure contact plate 22 is locked. Moreover, since the surface of the stop ring 20 on the side of the window 2 is tapered, it is pushed out into the hole 24 according to the degree of driving of the press plate 22. Therefore, the locking effect of the stop ring 20 can be obtained even if the diameter of the electric wire to be grasped is slightly different and the pressing degree of the press contact plate 22 is different.

When tension is applied to each of the gripped wires after the connection is completed, the tightening conductor 15 moves slightly in the contact tension direction, but the tightening conductor 15 and the press contact plate 22 are fitted in a substantially V shape. Since they are aligned with each other, such a movement further applies a force to the tightening conductor 15, so that the pressure contact state of each wire is further strengthened. Also, since the fitting is substantially V-shaped, such an effect can be obtained regardless of the longitudinal direction of the tension applied to each gripped wire. In FIG. 7, the branch line 32 is grasped.
On the other hand, a state in which tension is applied in the right direction in the figure is shown.

In order to release the gripped state of the electric wire, the guide pin 10 is removed, a driver or the like is inserted through the through holes 25 and 26 formed in the rear side plate 3, and the stop ring 20 is tightened from the hole 24 of the press contact plate 22 to the tightening conductor. Push it into the storage hole 19 of 15 and press the pressure plate 22
Just pull out. In the above embodiment, the rear side plate 3 is provided obliquely with respect to the front side plate 4 at a constant angle. However, the wedge-shaped cross-section gap into which the wedge-shaped pressure contact plate 22 can be fitted is different from that of the tightening conductor 15. It suffices if it is formed between the rear side plate 3 and the side surface of the tightening conductor 15 facing the rear side plate 3 may be provided obliquely at a certain angle.

(Effect of the Invention) According to this invention, since the branch connection is completed only by driving the press contact plate, the connection work can be performed easily and quickly. In addition, since the electric wire is strongly gripped by the wedge action of the wedge type pressure contact plate, a good connection state can be obtained. No special tools are required for the connection work itself.

Moreover, after the driving, the pressure contact plate is automatically locked by the stopper member, so that the driven pressure contact plate does not loosen, and the firm gripping state of the electric wire can be maintained.

The connection state can be released by removing the guide pin. In addition, structurally, each part can be integrated, which is convenient for handling.

When the tightening conductor and the press contact plate are fitted in a substantially V shape,
An even stronger gripping state can be obtained by the tension of the electric wire.

[Brief description of drawings]

1 to 7 relate to an embodiment of the present invention. FIG. 1 is a bottom view of the embodiment, FIG. 2 is a front view of the embodiment, and FIG. 3 is a view of when a pressure contact plate is driven. Side sectional view,
FIG. 4 is a front view of the pressure contact plate, FIG. 5 is a side sectional view of the embodiment before driving the pressure contact plate, FIG. 6 is a side sectional view of the embodiment in which the electric wire is gripped, and FIG. 7 is gripped. It is a bottom view of an example which shows a state where a tightening conductor has shifted when tension is applied to an electric wire. In the figure, 1 is a main conductor, 3 is a rear side plate, 5, 17 and 18 are wire holding grooves, 16 and 21 are coil springs, 10 is a guide pin, 15 is a tightening conductor, 19 is a housing hole, and 20. Is a stop ring, 22 is a pressure plate, 23 is a long hole, 24 is a hole, 31 is a main line, 32
Is a branch line.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tadashi Tadashi Tadashi Tadashi, 52-1 Ebara, Shinagawa-ku, Tokyo Inside Saneisha Manufacturing Co., Ltd. No. Stock Company Saneisha Works

Claims (2)

[Scope of utility model registration request] 1. A guide pin is provided between a main conductor and an appropriate locking body provided on one side surface of the main conductor at a position facing each other with a gap, and is slidable along the guide pin. The clamping conductor is provided around the guide pin so that the clamping conductor is urged by the spring member in the direction separating from the main conductor, and the main conductor and the clamping conductor are opposed to each other. A groove is provided, and one of the facing surfaces of the tightening conductor and the locking body is inclined, and a wedge-shaped cross-section gap is provided between them. The pressure contact plate is arranged so that the guide pin freely penetrates, and the pressure contact plate has a wedge-shaped cross section.
An appropriate hole is bored in the thickness direction of the pressure contact plate following the long hole, and a stopper member having a shape that can be housed in the hole is provided along the guide pin in the housing portion around the guide pin of the tightening conductor. A wedge-type branch connector, which is provided so as to be slidable and further has the stopper member urged toward a press contact plate. 2. The pressure contact plate and the tightening conductor are configured so as to be fitted in a substantially V shape when viewed from the longitudinal direction of the elongated hole in the pressure contact plate. Wedge type branch connector.