JPH0625892Y2 - Branch connection connector with wire disconnection prevention bracket - 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, the problem is solved by providing a branch line connector that can maintain a good connection state, can be detached, and prevents the gripped electric wire from falling off.

Therefore, in this invention, a guide pin is provided between the 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 the guide pin is slidable along the guide pin. The tightening conductor is provided around the guide pin so as to be urged, and the tightening conductor is urged by a spring member in a direction of separating from the main conductor, and at least one surface of the opposing main conductor and the tightening conductor is Is provided with an electric wire gripping groove, and one of the facing surfaces of the tightening conductor and the locking body is inclined, and a wedge-shaped cross section is provided between them.
The pressure contact plate is arranged so that the guide pin freely penetrates into the long hole formed in the pressure contact plate in this gap, and the pressure contact plate has a wedge-shaped cross section, and is further provided in the gap between the main conductor and the tightening conductor. A detachment prevention metal fitting for pressing the inserted electric wire is provided, and this detachment prevention metal fitting is composed of a plate-shaped pressing part and a rotating part projecting from one end of this pressing part, and the above-mentioned rotation is made on the shaft passing through the upper part of the tightening conductor. The pivoting part is pivotally supported, one end of the rotating part is projected between the tightening conductor and the locking body, and the contact plate is inserted more deeply between the tightening conductor and the locking body to rotate it. One end of the moving part is pushed and the turning part turns around the shaft, and the holding part enters the gap between the main conductor and the tightening conductor. is there.

In addition to such a configuration, in addition to the elongated hole in the thickness direction of the press-contact plate, an appropriate hole is bored and a stopper member having a shape that can be housed in the hole is provided around the guide pin of the tightening conductor. It may be provided so as to be slidable along the guide pin in the storage portion, and the stopper member may be urged toward the pressure contact plate.

Further, in the above-mentioned configuration, it may be proposed that the press-contact plate and the tightening conductor are fitted in a substantially V-shape when viewed from the longitudinal direction of the elongated hole in the press-contact plate.

Note that 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.

(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.

When the press-contact plate is driven in as such, one end of the disengagement prevention metal fitting is located between the tightening conductor and the locking body, and the disengagement prevention metal fitting is rotatable in both conductor directions. Therefore, the driving tip of the pressure contact plate or a part thereof pushes the one side end outward, and accordingly the other side end almost covers the space between the main conductor and the tightening conductor. Further, since the disengagement prevention fitting is not inverted unless the pressure contact plate is returned to its original position, the electric wire gripped between the main conductor and the tightening conductor does not fall out.

In the case where a stopper member is provided by punching an appropriate hole in the thickness direction of the pressure contact plate following the long hole, if the pressure contact plate is driven in and the hole following the long hole reaches around the guide pin, The stopper member housed in the housing portion of the tightening conductor is pushed into the hole by the urging force, and as a result, the press contact plate is locked and the state at that time is maintained.

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 the present embodiment is substantially a box body having a shape having windows at the top and bottom, and its rear side plate 2 serves as a locking body, and the rear side plate 2 is different from the front side plate 3. It has an angled relationship with a certain angle. An electric wire grip groove 4 is provided on the inner side of the front side plate 3 below, while the upper window side end is tapered to facilitate the insertion of the main line. The surface of the electric wire grip groove 4 is processed to prevent electric wires from slipping.

Each of the side plates 5 and 6 of the main conductor 1 has an insertion hole 7 in the lower part and a substantially 3/4 circular cutout part 8 in the upper part. A guide pin 9 having a screw thread at its tip penetrates from the substantially outer center of the front side plate 3 to the rear side plate 2, and the tip is screwed to the rear side plate 2. It should be noted that the rear side plate 2 is provided with appropriate through holes 10 and 11 near the tip screwed portion of the guide pin 9.

The head 12 of the guide pin 9 has a groove 13 formed therein so that the guide pin 9 can be removed by a driver or the like. Further, the head 12 itself of the guide pin 9 is housed in a hole 14 formed substantially outside the center of the front side plate 3, and the bottom of the hole 14 is smaller than the hole 14 and smaller than the diameter of the guide pin 9. Also has a through hole 15 having a large diameter.

Reference numeral 16 denotes a tightening conductor, which has a size and shape that can be accommodated in the main conductor 1, and is slidable along the guide pin 9 between the front side plate 3 and the rear side plate 2 of the main conductor 1, Further, a coil spring 17 is provided around the guide pin 9 between the tightening conductor 16 and the head 12 of the guide pin 9 so that the tightening conductor 16 is constantly urged toward the rear side plate 2 side of the main conductor 1. Has been done.

On the front side plate 3 side of the tightening conductor 16, an electric wire holding groove 18 is formed at a position facing the electric wire holding groove 4 below, and an electric wire holding groove 19 is formed above. The surfaces of the wire gripping grooves 18 and 19 are subjected to wire slip prevention processing. A storage hole 20 is provided around the guide pin 9 on the rear side plate 2 side of the tightening conductor 16. A square stop ring 21, which serves as a stopper member, is housed in the housing hole 20 so as to be slidable on the guide pin 9, and the stop ring is further reduced.
A coil spring 22 is arranged around the guide pin 9 between the step portion of the inner wall of 21 and the step portion of the guide pin 9 to constantly urge the stop ring 21 toward the rear side plate 2. The stop ring 21 has a tapered upper surface. As shown in FIGS. 5 and 6, the surface of the tightening conductor 16 on the rear side plate 2 side is formed in a gentle V-shape that is convex outward (on the rear side plate 2 side).

Further, the tightening conductor 16 is provided with a disengagement prevention fitting 23 so as to be rotatable. The detachment prevention fitting 23 used in this embodiment is the first
As is apparent from the drawing, a holding portion 24 having a substantially C-shaped vertical section and having substantially the same width as the main conductor 1, and an end portion fixed to the holding portion 24 and located at the rear side plate 2 side of the tightening conductor 16. It is composed of two rotating parts 25, 25 projecting from the surface, and the rotating parts 25, 25 are delivered into the recessed parts 26, 26 drilled above the tightening conductor 16, and the recessed parts 26, 26 are provided.
The shaft 27 is rotatably provided on a shaft 27 that passes through the shafts 26, 26.

The tightening conductor 16 and the rear side plate 2 of the main conductor 1 having the above structure
A pressure contact plate 28 is arranged between the pressure contact plate 28 and. This pressure plate 28 is the second
As shown in FIG. 3 and FIG. 3, it has a wedge-shaped vertical cross section, and the surface on the side of the tightening conductor 16 is recessed on the same side and is formed into a gentle substantially V-shape that matches the tightening conductor 16. . The angle between the slopes matches the angle formed by the rear side plate 2 and the front side plate 3 of the main conductor 1 described above. A long hole 29 is bored from substantially the center of the press contact plate 28 to the thin portion, and a hole 30 is bored subsequently to the long hole 29. Further, at the upper left and right end portions of the front surface of the press contact plate 28, rectangular holes are cut across the long hole 29, and step portions 31, 31 are formed by each. The pressure contact plate 28 is housed between the tightening conductor 16 and the rear side plate 2 of the main conductor 1 so that the guide pin 9 freely penetrates into the elongated hole 29 of the pressure contact plate 28.

The present embodiment is configured as described above, and the state shown in FIG. 1 is the state of preparation for connection, and in order to branch and connect from this state, the main line 32 to be connected is cut out from above the main conductor 1. 8 into the main conductor 1 and the branch wire 33 into the insertion hole 7
And insert it between the wire holding grooves 4 and 18. After that, the press plate 28 may be driven in. Then, the tightening conductor 16 is strongly pressed against the front side plate 3 side of the main conductor 1 by the wedge action, so that the trunk line 32 causes the wire grip groove 19 and the front side plate 3 to move.
Meanwhile, the branch line 33 is firmly held between the wire holding grooves 4 and 18, and the branch connection of both lines is performed.

Further, when the press-contact plate 28 is driven in such a manner, the step portions 31, 31 of the press-contact plate push the ends of the turning portion 25 of the disengagement prevention metal fitting 23, respectively, to turn the press-fitting plate, and the presser foot is pushed accordingly. Department
Between the front side plate 3 of the main conductor 1 and the tightening conductor 16, 24 can press the main wire 32 from the outside. The state at that time is shown in FIG. As is clear from the figure, once such a state is reached, the disengagement prevention fitting 23 does not return to its original state and the trunk line 31 does not fall off unless the pressure contact plate 28 is pulled back.

Then, when the pressure contact plate 28 is driven upward and the tapered edge of the stop ring 21 reaches the inside of the hole 30, the stop ring 21 is pushed into the hole 30 of the pressure plate 28 by the bias of the coil spring 22. Then, the pressure contact plate 28 is locked. Therefore, the pressed state of the tightening conductor 16 is maintained as it is, the firm holding state of the trunk line 32 and the branch line 33 is not loosened, and the disengagement prevention metal fitting 23 is not inverted.

In this case, since the upper surface of the stop ring 21 is tapered, it is gradually pushed out into the hole 30 according to the degree of driving of the press plate 28. Therefore, the locking effect of the stop ring 21 can be obtained even if the diameter of the electric wire to be grasped is slightly different and the pressing degree of the pressure contact plate 28 is different.

When tension is applied to each gripped wire after the connection is completed, the tightening conductor 16 tends to move in the tension direction to some extent as shown in FIG. 6, but the tightening conductor 16 and the pressure contact plate 28 Since they are fitted in a substantially V shape, such a movement further applies a force to the tightening conductor 16, and 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.

To release the gripped state of the electric wire, the guide pin 9 is removed, a driver or the like is inserted through the through holes 10 and 11 formed in the rear side plate 2, and the stop ring 21 is tightened from the hole 30 of the press contact plate 28 to the tightening conductor. Push it into the 16 storage holes 20
Just pull back. In the above embodiment, the rear side plate 2 is provided obliquely with respect to the front side plate 3 at a constant angle. However, the wedge-shaped cross-section gap into which the wedge-shaped pressure contact plate 28 can be fitted is the same as the tightening conductor 16. It suffices if it is formed between the rear side plate 2 and the side surface of the tightening conductor 16 facing the rear side plate 2 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.

When the pressure contact plate is driven in, the disengagement prevention metal fitting rotates and almost covers the space between the main conductor and the tightening conductor.
The wires held by both conductors do not fall out.

Further, if the stopper member is provided, after the driving, the pressing plate is automatically locked by the stopper member, so that the pressed pressing plate does not loosen and the strong 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 6 are all related to an embodiment of the present invention. FIG. 1 is a side sectional view of the embodiment before driving the pressure contact plate, FIG. 2 is a side view of the pressure contact plate, and FIG. Fig. 4 is a front view of the same, Fig. 4 is a side sectional view of an embodiment in which an electric wire is held by driving a pressure contact plate, Fig. 5 is a plan view of the same, and Fig. 6 is a bottom view of the same. In the figure, 1 is a main conductor, 2 is a rear side plate, 3 is a front side plate,
4, 18 and 19 are electric wire grip grooves, 9 is a guide pin, 16 is a tightening conductor, 17 and 22 are coil springs, 20 is a storage hole,
21 is a stop ring, 28 is a pressure contact plate, 29 is a long hole, 30 is a hole, 32 is a trunk line, and 33 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 (3)

[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 tightening conductor is provided around the guide pin so as to be urged, and the tightening conductor is urged by a spring member in a direction of separating from the main conductor, and at least one surface of the opposing main conductor and the tightening conductor is Is provided with an electric wire gripping groove, and one of the facing surfaces of the tightening conductor and the locking body is inclined,
A wedge-shaped cross-section gap 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 the gap, and the pressure-contact plate has a wedge-shaped cross-section. Further, a disengagement prevention metal fitting for pressing the electric wire inserted in the gap between the main conductor and the tightening conductor is provided, and the disengagement prevention metal fitting is composed of a plate-shaped pressing portion and a rotating portion protruding from one end of the pressing portion. The rotating portion is rotatably supported on a shaft passing through the upper part of the attached conductor, one end of the rotating portion is projected between the tightening conductor and the locking body, and the one between the tightening conductor and the locking body. By inserting the contact plate deeper into the shaft, one end of the rotating portion is pushed, the rotating portion rotates about the shaft, and the holding portion enters the gap between the main conductor and the tightening conductor. A branch connector with a wire disconnection prevention fitting. 2. A stopper member having a shape capable of being accommodated in the hole is formed in the accommodating portion around the front guide pin of the tightening conductor by forming an appropriate hole following the elongated hole in the thickness direction of the press contact plate. The branch connector according to claim (1), wherein the stopper member is provided so as to be slidable along the pin, and the stopper member is biased toward the pressure contact plate. . 3. The press 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 press contact plate. Branch connection connector with wire disconnection prevention fitting as described in item (2).