JP2001185248A - Pressure-contact joint connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a pressure-contact joint connector which can be assembled using a tightening band tool used generally in the harness manufacturing site, and where the improvement of productive efficiency can be aimed at. SOLUTION: This device is equipped with a housing main body 2 which forms a retaining groove 3 into which cables A, C are penetrated, a cover 15 which is installed rotatably at the said housing body 2 via a hinge 16, a pressure-contact terminal 4 having a pressure-contact blade 5 which is housed in the housing main body 2 and which has the pressure-contact blade 5 cutting and electrically connecting an insulation covering 41 of the cables A, C, and moreover, the said cover 11 is integrally equipped with a tightening band 13 which press-fits the cables A, C into the pressure-contact terminal 4 and which makes the cover 11 adhere to the housing body 2 with the strong pressure state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-fit joint connector for electrically connecting a plurality of insulated wires to one another, and more particularly, to a press-fit joint connector that can be assembled using a band tightening tool generally used in a harness manufacturing site. Related to the structure.

[0002]

2. Description of the Related Art Various types of press-connecting connectors are conventionally known. For example, one disclosed in Japanese Utility Model Laid-Open No. 7-27057 shown in FIGS. 6 and 7 is known. 6 and 7, the press-fit joint connector 51 includes a housing main body 52 having a plurality of holding grooves 53 for inserting and holding the covered electric wires A and B,
A press-contact terminal 54 housed in the housing body 52 and electrically connecting between the plurality of covered electric wires A and B on the holding groove 53.
And a cover 61 attached to the housing main body 52.

[0003] More specifically, the press contact terminal 54 is formed by a plurality of press contact slits 5 through which a plurality of press contact blades 55 cut the insulating coating 41 of each of the coated electric wires A and B and come into contact with the conductor 42.
6 is provided. On the inner wall surface of the cover 61, a pressing piece 62 for pressing the coated electric wires A and B on the holding groove 53 and press-fitting the coated electric wires A and B into the press-contact blade 55 is provided. On the side surface of the housing main body 52, a temporary locking projection 57 and a final locking projection 58 with which the locking pieces 63 formed on the cover 61 are sequentially engaged are provided.
Further, the housing main body 52 and the cover 61 are provided with tool receiving portions 59 and 64 for clamping them with a tool.

In the press-fitting joint connector 51 having the above-described configuration, after the press-connecting terminals 54 are accommodated and arranged in the housing body 52, the covered electric wires A and B are placed on the holding grooves 53. Then, in a state where the cover 61 is put on from above and the locking pieces 63 are temporarily locked to the temporary locking projections 57, the tool receiving portions 59 and 64 of the housing main body 52 and the cover 61 are respectively held by tools such as the pliers 43. When the squeezing force is applied, the insulated wires A and B are pressed by the pressing pieces 62 protruding from the cover 61 due to the squeezing force.
As a result, it is pushed into the press contact slit 56. As a result,
The insulating coating 41 is cut by the pressure contact slit 56,
Each of the conductors 42 comes into contact with the press-contact blade 55, so that the covered electric wires A and B are electrically conducted to each other well. Finally, the locking piece 63 is locked to the main locking projection 57, so that the cover 61 is attached without detaching from the housing main body 52.

[0005]

However, in the above-described conventional press-fitting joint connector 51, a tool that is not normally used in a wire harness production site, such as a flyer 43, is used when attaching the insulated wires A and B to the press-fitting joint connector 51. Therefore, there is a problem that the types of tools increase. In particular, when the number of insulated wires to be conductively connected increases, the housing body 52 and the cover 6
In this case, a pressing machine or the like is required due to an increase in the built-in pressing force, which causes a problem that expensive equipment and a decrease in productivity are caused at the same time.

The present invention has been made in view of the above problems, and can be assembled using a band tightening tool that is generally used in a harness manufacturing site and is applied to a band clip for binding a wire harness. SUMMARY OF THE INVENTION It is an object of the present invention to provide a press-fit joint connector capable of suppressing an increase in the number of tools and improving production efficiency.

[0007]

According to the present invention, there is provided a press-fit joint connector according to the present invention, comprising: a housing body having a plurality of holding grooves through which a covered electric wire is inserted;
A press-connecting terminal having a plurality of press-contact blades for cutting the insulating coating of the plurality of covered wires held in the holding groove and making a conductive connection between the covered wires by contacting the conductor; A press-connecting connector provided with a cover that is provided with the cover, the press-connecting terminal being disposed on the housing body or the cover, the cover being rotatably connected to the housing body via a hinge, and facing the hinge. The covering wire is press-fitted into the press-fitting slit of the press-fitting terminal by fitting a tightening band provided on the side wall to be inserted into a locking hole formed at a corresponding position of the housing main body and tightening. Then, by tightening the tightening band and attaching the cover in a strongly pressurized state to the housing body in which the plurality of covered electric wires are arranged in the holding groove, when the covered electric wire is pushed into the press contact slit of the press contact terminal, the insulating coating is applied. The conductor is cut and cut into contact with the press contact blade.

According to a second aspect of the present invention, in the press-connecting connector, a pressing piece is provided on the cover or the housing body, the pressing piece being disposed to face the press-connecting terminal and press-fitting the covered electric wire into the press-connecting slit. And And if the said structure is taken, since a pressing piece will abut against a covered electric wire with rotation of a cover and a covered electric wire can be press-fitted into a press-fitting slit, a covered electric wire will be reliably and easily slit. Is pushed to the deepest part.

Further, in the press-fitting joint connector according to a third aspect, when the covered wire is press-fitted into the deepest portion of the press-fitting slit, the height of the holding groove and the tip of the pressing piece in the press-fitting direction are different. It is characterized by being bent. With the above configuration, when the covered electric wire is connected to the press contact terminal, the covered electric wire is bent by the holding groove and the tip of the pressing piece, and cannot be moved by the tensile force in the axial direction.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a press-fit joint connector according to the present invention will be described below in detail with reference to the drawings. 1 to 5 show an embodiment of a press-connecting joint connector according to the present invention. FIG. 1 is a perspective view showing a state before assembling the press-connecting joint connector.
Is a longitudinal sectional view of the housing main body and the cover in FIG. 1,
3 is a longitudinal sectional view after the housing body and the cover are assembled, FIG. 4 is a transverse sectional view taken along the line D-D in FIG. 3, and FIG. 5 is an operation explanatory view when the housing body and the cover are fastened by the band fastening tool. is there.

The press-fit joint connector 1 according to the present embodiment.
Is formed in a substantially rectangular body, and has a housing main body 2 in which a holding groove 3 for inserting a plurality of covered electric wires A and C is formed at an upper end of a side wall facing each other; By cutting into the insulating coating 41 of the coated electric wires A and C held in the groove 3 and coming into contact with the conductor 42,
A press contact terminal 4 equipped with a press contact blade 5 for conducting connection between the coated electric wires A and C, and a cover 1 attached to the housing body 2
1 is provided. When the cover 11 is attached to the housing main body 2, a pressing piece 9 for pressing the covered electric wires A and C on the holding groove 3 and pressing the covered electric wires A and C into the press contact blade 5 from the inner wall surface is provided. 11, the covered wires A and C are positioned at positions corresponding to the holding grooves 3 of the housing body 2.
Is provided at a predetermined position.

The cover 11 is attached to the housing body 2 by the hinge 1.
2 so as to be freely rotatable. On the side wall of the cover 11 on the side facing the hinge 12, a fastening band 13 formed with flexibility is continuously provided, and the fastening band 13 covers the cover 11 to the housing body 2. Then, the fitted wires A and C are press-fitted into the press-fitting slits 6 of the press-fitting terminals 4 by fitting and tightening into the locking holes 8 formed at the corresponding positions of the housing body 2. The press contact terminal 4 is provided in a double structure in which a pair of press contact blades 5 having a press contact slit 6 are connected in the lateral direction, and is formed in a U-shape as a whole.

The holding grooves 3, 14 of the housing main body 2 and the cover 11, the pressing piece 9, and the deepest portion of the press-fitting slit 6 have different height positions in the wire press-fitting direction, so that the covered wires A, C described later are bent. Housing body 2 of sheathed electric wires A and C
It is designed to prevent escape from

In the press-fitting joint connector 1 having the above-described structure, first, as shown in FIG. 2, after a plurality of covered electric wires A and C are disposed in the holding grooves 3 of the housing body 2, the hinge 12 is rotated to cover the cover. When the cover 11 is put on the housing body 2 and the tightening band 13 is inserted into the locking hole 8 and pulled lightly, the cover 11 is temporarily locked on the housing body 2.

Next, as shown in FIG. 5, when the band 11 is tightened to the housing main body 2 using the band tightening tool 45 to attach the cover 11 in a strong pressure state, the cover 11 is covered. The insulated wires A and C are pushed into the press contact slit 6 of the press contact terminal 4 with the applied force. As a result, as shown in FIG. 4, the insulating coverings 41 of the plurality of covered electric wires A and C are cut at the same time, and the conductor 42 is brought into contact with the press contact blade 5.

Therefore, the plurality of covered electric wires A and C are connected to each other. Finally, the extra tightening band 13 protruding from the locking hole 8 is cut by the band tightening tool 45. As shown in FIG. 3, when the housing main body 2 and the cover 11 are fully locked, the heights of the coated electric wires A and C differ in the press-fitting direction depending on the holding grooves 3, 14 and the tip of the pressing piece 9. It is bent into a substantially U-shape.

In the present embodiment having the above-described structure, the cover 11 is attached to the housing body 2 in a strongly pressurized state by tightening the tightening band 13, so that the covered electric wire is attached to the cover 11 with the attached force. A and C are pushed into the press contact slit 6 of the press contact terminal 4. Therefore, the coated electric wires A and C
Is reliably and easily pushed to the deepest part of the press-contact slit 6, the press-connect joint connector 1 can electrically connect a plurality of covered electric wires A and C, and can improve reliability.

In order to apply the cover 11 to the housing body 2 in a strong pressure state, a band tightening tool 45 generally used in a harness manufacturing site is used.
Therefore, it is possible to improve the production efficiency while suppressing an increase in new types of tools. Furthermore, when the plurality of covered electric wires A and C are connected to the press contact terminal 4, they are bent by the holding grooves 3, 14 and the tip of the pressing piece 9, so that they are immovably provided with respect to the tensile force in the axial direction. , Reliability can be further improved. In addition, since the housing body 2 has a one-part structure integrally connected by the hinge 12, the number of parts can be reduced and cost reduction can be expected.

It should be noted that the present invention is not limited to the above-described embodiment, and appropriate changes can be made. For example, in the present embodiment, the press contact terminal 4 is formed in a U-shape with two press contact blades 5 connected at the bottom by the connecting plate 7.
The two press-contact blades 5 may be connected in an inverted U-shape at the top by a connecting plate, and a part of the bottom may be embedded in the inner wall surface of the bottom wall of the housing body 2. Further, both of the covered electric wires A and C are extended so as to penetrate the cover 11, but only one of them may be extended like the covered electric wire B shown in FIG.

[0020]

As described above, according to the press-fit joint connector according to the present invention, the housing body is
By tightening the tightening band and attaching the cover in a strongly pressurized state, a plurality of covered electric wires are pushed into the press contact slit of the press contact terminal. Therefore, the coated electric wires are securely and easily pushed to the deepest portion of the press-contact slit, and the coated electric wires are reliably and electrically connected to each other. Therefore, reliability can be improved.

In order to attach the cover to the housing body under high pressure, a band tightening tool generally used at a harness manufacturing site can be used, so that the use of a new type of tool is suppressed and the production efficiency is improved. Can be achieved. Further, when the plurality of insulated wires are connected to the press contact terminal, the plurality of insulated wires are bent by the holding groove and the tip of the pressing piece, so that the insulated wires cannot be moved by the tensile force in the axial direction. Therefore, the reliability can be further improved. Further, since the housing body is integrally connected by the hinge, the number of parts is reduced. Therefore, cost reduction can be expected.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a press-connecting connector according to the present invention before assembling.

FIG. 2 is a longitudinal sectional view of a housing main body and a cover in FIG.

FIG. 3 is a longitudinal sectional view after a housing body and a cover are assembled.

FIG. 4 is a cross-sectional view taken along line DD in FIG.

FIG. 5 is an operation explanatory view when the housing body and the cover are tightened by the band tightening tool.

FIG. 6 is a perspective view showing an example of a conventional press-fit joint connector before a cover is attached.

FIG. 7 is a cross-sectional view showing a state in which the cover in FIG. 6 is sandwiched by pliers.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Press-fitting joint connector 2 Housing main body 3 Holding groove 4 Press-fitting terminal 5 Press-fitting blade 6 Press-fitting slit 8 Locking hole 9 Pressing piece 11 Cover 12 Hinge 13 Tightening band 41 Insulating coating 42 Conductor 45 Band tightening tool A Coated wire C Coated wire

Claims (3)

[Claims] 1. A housing body having a plurality of holding grooves through which a covered electric wire is inserted, and a plurality of the covered electric wires held in the holding grooves being cut into contact with a conductor so as to come into contact with a conductor, thereby forming a space between the covered electric wires. A press-connecting connector provided with a press-connecting terminal having a plurality of press-connecting blades for electrically connecting the cover and a cover attached to the housing main body, wherein the press-connecting terminal is disposed on the housing main body or the cover; The housing body is rotatably connected to the housing body via a hinge, and a fastening band continuously provided on a side wall facing the hinge is fitted into a locking hole formed at a corresponding position of the housing body and tightened. A press-fitting joint connector, wherein the covered electric wire is press-fitted into a press-fitting slit of the press-fitting terminal. 2. The cover or the housing body,
2. A press-fit joint connector according to claim 1, wherein a pressing piece is disposed to face the press-contact terminal and press-fits the covered wire into the press-contact slit. 3. The press-fitting wire according to claim 2, wherein when the press-fitting slit is pressed into the deepest portion of the press-contact slit, the holding groove and the pressing piece have different heights in the press-fitting direction and are bent. The crimp joint connector described.