JP2001185249A - Pressure-contact connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability of pressure-contacting of a twisted pair wire. SOLUTION: Because a guiding protruding ridge 27 is installed protrudingly along the longitudinal direction between-electric wiring paths 29A, 29B, and since a pair of tapered faces 34 falling slanted toward the right and left toward both sides of electric wiring parts 29A, 29B is installed at their ends, both wires 11A, 11B are separated mutually and are led to the electrical wiring paths 29A, 29B by pushing the wires 11A, 11B thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-connecting connector, and more particularly to a connector for press-connecting twisted pair wires.

[0002]

2. Description of the Related Art Conventionally, as a press-connecting connector for press-connecting a twisted pair wire, for example, there is one shown in FIG. The housing 2 of the press-connecting connector 1 is provided with a total of four groove-shaped electric wire routing paths 4A, 4B in which a pair of electric wires 3A, 3B constituting two sets of twisted pair wires 3 are arranged. . The housing 2 is provided with a pair of long and short press contact terminals 6 and 7 each.
The wires 3A, 3B of the two twisted pair wires 3 are electrically connected to each other by the wires 3A, 3B being pressed against the press-contact blades 6A, 7A, respectively.

[0003]

The above-described press-connecting connector 1
When the twisted pair wire 3 is pressed into contact with the electric wires 3A, 3B
The following work needs to be performed before the blade is pushed into the press contact blades 6A and 7A. First, a part of the twist of the pair of electric wires 3A and 3B is loosened, and the loosened portion is expanded to the width between the electric wire routes 4A and 4B, and further expanded to the length of the electric wire routes 4A and 4B. After that, the electric wires 4A, 4B are placed on the openings of the press contact blades 6A, 7A so that the electric wire
Follow A, 4B. However, it has not always been easy to perform such an operation using only the operator's finger. The present invention has been made in view of the above circumstances, and its purpose is to:
An object of the present invention is to provide a press-connecting connector capable of improving the workability of press-connecting a twisted pair wire.

[0004]

According to a first aspect of the present invention, there is provided a press-connecting connector for press-connecting a twisted pair wire, wherein an electric wire forming the twisted pair wire is routed. A press-fitting connector provided with a housing provided with a pair of wire routing paths, and a pressure-connecting terminal fitting mounted on the housing and pressed against the wires in the wire routing path. A guide ridge is protruded along the length direction between the wire routing paths, and a tapered surface that is inclined downward toward the wire routing path is provided at the tip of the guide ridge. Has features.

According to a second aspect of the present invention, in the first aspect, a tapered surface is provided at a tip end of the guide ridge so as to be inclined downward toward the outside in the length direction. Have.

According to a third aspect of the present invention, in the first or second aspect, a cover is attached to the housing so as to cover the press contact portion, and the cover receives the guide protrusion. The present invention is characterized in that a receiving recess having a guide surface that slides linearly is provided.

[0007]

According to the first aspect of the present invention, when the distal end of the guide ridge is pressed between a pair of twisted electric wires, the tapered surface which is inclined downward toward the electric wire routing path side causes the tapered surface to be inclined. The wires are separated from each other and guided to each wire routing path. By pushing a pair of electric wires along the length direction of the guide ridge, both electric wires can be distributed to each electric wire routing path, and workability is good.

According to the second aspect of the present invention, by providing the tapered surface inclined downward toward the outside in the length direction, when a pair of electric wires are pressed along the guide ridge, both electric wires are pushed down. As this taper surface enters between the electric wires, the electric wires can be more smoothly distributed to the electric wire routing paths, and the workability is good.

According to the third aspect of the present invention, when the cover is assembled to the housing, the guide surface of the receiving recess provided in the cover slides the guide ridge linearly. Thus, the cover can be assembled straight with the cover positioned.

[0010]

Next, an embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a press-connecting connector 20 that press-connects two sets of twisted pair wires 10A and 10B formed by twisting a pair of electric wires 11A and 11B will be described. The press-connecting connector 20 of this embodiment includes a housing 21, two long and short press-connecting terminal fittings 40 and 41, and a cover 50.

The housing 21 is formed of a synthetic resin material as a whole in a box shape, and as shown in FIGS. 1 to 4, includes a bottom wall 22 and a pair of left and right side walls 23. It is open. A cover 50 to be described later can be attached to the housing 21 from above. A lock projection 24 having a wedge-shaped cross section that can be engaged with the lock hole 56 of the cover 50 is provided on the outer surface of the left and right side walls 23. .

A central wall 26 projects from the center of the housing 21 in the left-right direction along the front-rear direction. Between the center wall 26 and the left and right side walls 23, guide ridges 27 described later are provided in a protruding manner in the front-rear direction. , The inner one is indicated by 29B). Each wiring route 29
A and 29B are provided with wires 11A and 11B constituting the twisted pair wires 10A and 10B. The housing 21 is provided with a pair of long and short terminal mounting grooves 31 and 32 in a direction orthogonal to the wiring direction of the electric wires 11A and 11B. Among these, a pair of terminal mounting grooves 31 provided on the front side of the housing 21 is formed so as to cross the housing 21 from one side wall 23 to the other side wall 23, and the press-contact terminal fitting 40 is fitted tightly therein. Have been. A pair of terminal mounting holes 32 provided on the rear side of the housing 21 are formed from one guide ridge 27 to the other guide ridge 27,
The pressure contact terminal fitting 41 is tightly fitted therein.

The press-connecting terminal fittings 40 and 41 are formed by punching a conductive metal plate into a predetermined shape. The longer press-connecting terminal fitting 40 is provided with a U-shaped press-contact blade 43 having an opening 43A at an upper portion at a portion exposed in the wire routing path 29A outside the housing 21. Further, a U-shaped relief recess 44 is formed in a portion corresponding to the electric wire routing path 29B inside the press-connecting terminal fitting 40 so as not to interfere with the electric wire 11B disposed in the electric cable routing path 29B. Has become. On the other hand, the shorter pressure contact terminal fitting 41 is provided with a U-shaped pressure contact blade 46 having an opening 46A at an upper portion in a portion exposed in the inner wire routing path 29B.

As described above, the guide ridge 27 protrudes between the pair of electric wire routing paths 29A and 29B along the length direction (the front-rear direction of the housing 21). The tips of the guide ridges 27 are openings 43A, 4 of the press contact blades 43, 46.
6B, a tapered surface 34 is formed on the left and right sides and inclined downward toward the wire routing paths 29A, 29B. further,
Length direction (front-back direction) at the tip of the guide ridge 27
Are formed at both ends thereof with tapered surfaces 35 inclined downward toward the outside of the housing 21.

On the other hand, the cover 50 mounted on the upper surface of the housing 21 is made of a synthetic resin material, and as shown in FIGS. Front wall 52 covering the surface,
A rear wall 53 extends downward. These front walls 52,
The rear wall 53 is provided with a U-shaped wire insertion groove 54 for passing the wires 11A and 11B. Also, the ceiling wall 51
A pair of lock pieces 55 extend downward from the left and right side edges of the pair. These lock pieces 55 can be bent and deformed in the expanding direction, and have lock holes 56 that can be engaged with the lock projections 24 of the housing 21.

On the ceiling wall 51 of the cover 50, wire pressing portions 58A and 58B are protruded at positions corresponding to above the wire routing paths 29A and 29B. And electric wires 11A and 11B
To the bottom wall 22 side of the housing 21. Also, between the wire pressing portions 58A and 58B,
A groove-shaped receiving recess 59 capable of receiving the guide ridge 27 is provided (see FIG. 4). Vertical guide surfaces 59A are formed on both left and right sides of the receiving recess 59, and when the cover 50 is assembled to the housing 21, the two guide surfaces 59A are in sliding contact with both side surfaces of the guide ridge 27. .

The configuration of this embodiment has been described above, and the operation thereof will be described next. In order to press the twisted pair wires 10A and 10B against the press-connecting connector 20, first, the twisted electric wires 11A and 11B are pressed so that the leading end of the guide ridge 27 is cut therebetween. Then, the pressed electric wires 11A and 11B are separated from each other in the width direction along the left and right tapered surfaces 34, and each of the electric wire routing paths 29.
A and 29B, specifically, as shown in FIG. 5, are guided to the vicinity of the openings 43A and 46A of the press contact blades 43 and 46. When the position where the electric wires 11A and 11B are pressed is shifted along the length direction of the guide ridge 27, the twisted electric wires 11A and 11B gradually become the left and right electric wire routing paths 2.
It is distributed to 9A and 29B. Electric wires 11A, 1
When the position where 1B is pressed reaches the longitudinal end of the guide ridge 27, as the two electric wires 11A and 11B are pushed down, the tapered surface 35 enters the twisted portion, and the electric wires 11A and 11B are further smoothly. Will be sorted out. Thus, as shown in FIG.
B is placed along the electric wire routing paths 29A, 29B while being placed on the openings 43A, 46A of the press contact blades 43, 46.

Subsequently, the cover 50 is covered from above the housing 21. Then, the tip of the lock piece 55 of the cover 50 rides on the lock projection 24 of the housing 21 and the two lock pieces 55 bend and deform in the expanding direction (see FIG. 7). At this time, the left and right lock pieces 55 bend, so that the cover 50 is not held in the left-right direction and becomes unstable. However, when the cover 50 approaches the housing 21 in a state shifted in the left-right direction, The tapered surface 34 of the guide ridge 27 has a hole edge of the receiving recess 59 (the wire pressing portions 58A, 58A).
By hitting B), the cover 50 is guided to a regular position. Therefore, the tips of the wire pressing portions 58A and 58B accurately contact the upper surfaces of the wires 11A and 11B.

When the cover 50 is further pressed against the housing 21, the electric wire pressing portions 58A and 58B are connected to the electric wires 11A and 1B.
1B is pushed into the press contact blades 43 and 46. At this time, since the guide surface 59 </ b> A of the receiving recess 59 slides the guide ridge 27 linearly, the cover 50 is assembled straight to the housing 21. Thereby, the wire pressing portion 5
8A, 58B can push the electric wires 11A, 11B straight into the press contact blades 43, 46, and the press contact blades 43, 46
Is surely cut into the sheath and comes into contact with the core of the electric wire. In this manner, when the cover 50 is pushed in, the lock projection 24
Is inserted into the lock hole 56, the lock piece 55 returns to the inside, and the cover 50 is assembled to the housing 21 in a locked state (see FIG. 8). The electric wires 11A, 11B of the two twisted pair wires 10A, 10B are electrically connected to each other via the press-connecting terminal fittings 40, 41.

As described above, according to the present embodiment, the guide ridge 27 is protruded along the length direction between the electric wire routing paths 29A and 29B, and the left and right electric wire routing paths are provided at the distal end thereof. 29
A pair of tapered surfaces 34 inclined downward toward the sides A and 29B.
Is provided, by pressing the wires 11A and 11B, the wires 11A and 11B are separated from each other and guided to the wire routing paths 29A and 29B. And a pair of electric wires 11
A and 11B are pressed along the length direction of the guide ridge 27, and both electric wires 11A and 11B are connected to each electric wire routing path 29.
A, 29B. As a result, as in the prior art, the operator loosens the twist of the pair of wires with only the finger, and expands the loosened portion to the width between the wire routing paths,
Further, workability is improved as compared with the case where the wire is extended to the length of the electric wire routing path and the electric wire is made to follow the electric cable routing path.

Further, since the guide ridge 27 is provided with a tapered surface 35 which is inclined downward toward the outside at both ends in the length direction, a pair of electric wires 11 along the guide ridge 27 is provided.
When pressing A and 11B, both electric wires 11A and 11
As B is pushed down, the tapered surface 35 enters between the electric wires 11A and 11B, so that both electric wires can be more smoothly distributed to the electric wire routing paths, and the workability is further improved.

Further, the cover 50 is provided with a receiving recess 59 for receiving the guide ridge 27, and
When assembling to the housing 21, the receiving recess 59
Since the guide surface 59A slides the guide ridges 27 linearly, it can be assembled straight with the cover 50 positioned.

The technical scope of the present invention is not limited by the above-described embodiments. For example, the followings are also included in the technical scope of the present invention. (1) In this embodiment, two twisted pair wires 10A,
Although the press-connecting connector 20 for press-connecting each of the electric wires 11A and 11B of 10B is shown, according to the present invention, the number of twisted pair wires press-contacted to the connector is not limited to this.
Either one of the pair of wires constituting the one twisted pair wire may be connected to the press-connecting terminal fitting. Further, the insulation displacement terminal fitting may be connected to another terminal fitting or the like.

[Brief description of the drawings]

[0001]

FIG. 1 is a perspective view of a housing in a press-connecting connector according to an embodiment.

FIG. 2 is a plan view of a housing.

FIG. 3 is a sectional side view of the press-connecting connector before assembly.

FIG. 4 is a front sectional view of the press-connecting connector before assembly.

FIG. 5 is a front sectional view showing a state in which the twisted pair wires are distributed to the electric wire routing paths.

FIG. 6 is a plan view showing a state in which twisted pair wires are distributed to electric wire routing paths.

FIG. 7 is a front sectional view showing a process of assembling the cover.

FIG. 8 is a front sectional view showing a state where a cover is assembled.

FIG. 9 is a plan view showing a conventional press-connecting connector.

[Explanation of symbols]

10A, 10B: Twisted pair wire 11A, 11B: Electric wire 20: Press-connecting connector 21: Housing 27: Guide ridge 29A, 29B: Electric wire routing path 34: Tapered surface (taper surface inclined downward toward the wire routing path side) 35 ... Tapered surface (tapered surface inclined downward toward the outside in the length direction) 40, 41 ... Press-contact terminal fitting 50 ... Cover 59 ... Recessed recess 59A ... Guide surface

Claims (3)

[Claims] 1. A housing for press-fitting a twisted pair wire, the housing having a pair of wire routing paths through which wires constituting the twisted pair wire are routed, and the wire routing mounted on the housing. In a press-connecting connector provided with a press-connecting terminal fitting pressed against the electric wire in a path, a guide ridge is provided on the housing along the length direction between the pair of electric wire routing paths, and the guide is provided. A press-connecting connector, characterized in that a tapered surface which is inclined downward toward the wire routing path is provided at a tip end of the ridge. 2. The press-connecting connector according to claim 1, wherein a tapered surface that is inclined downward toward the outside in the length direction is provided at a tip end of the guide ridge. 3. A cover is attached to the housing so as to cover the press contact portion, and the cover is provided with a receiving concave portion having a guide surface for receiving the guide protrusion and sliding linearly. The press-connecting connector according to claim 1 or 2, wherein: