JPH08250230A - Connector assembling method, and jig used in the method - Google Patents

Abstract

PURPOSE: To easily, surely assemble a connector for a covered electric wire by forming a guide groove for guiding a projection at the tip of a spring in a positioning groove formed on the side surface of a connector housing. CONSTITUTION: The cover of a feeder cable 20 is peeled off to expose an insulator 26 and a core wire 21 on the inside, then inserted into a connector housing 10. The core wire 21 is introduced into a cylindrical terminal 11 integrally formed in the housing 10, and they are soldered in the vicinity of an opening 12 at the tip. A spring arm 22 is fixed to the feeder cable 20 through a supporting part 25 integrally formed with the spring arm 22, a tip 23 of the spring arm 22 is positioned in a positioning groove 13 formed on the side surface of the housing 10, and connected to an earth by energizing the spring. In the connector, a guide groove 14 for guiding a projection 24 formed in the tip 23 is formed along the positioning groove 13. When the connector is assembled, preferably, a needle having a core wire holding part at the tip is inserted from the opening 12 to draw in the core wire 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector provided with a tubular terminal for fixing only a core wire inside a covered electric wire, and more particularly to a connector using a core wire such as an antenna feeder wire.

[0002]

2. Description of the Related Art A connector having a core wire fixed to the inside of a tubular terminal as described above is often used for connecting an antenna feeder wire or the like. For example, in an automobile, it is used as a connecting portion of a feeder line for connecting an antenna to a radio or the like. A conventional configuration of such a connector is shown in FIGS. 7 and 8 below, FIG. 7 is an exploded perspective view of the conventional connector, and FIG. 8 is a longitudinal sectional view of the connector of FIG.

In this figure, the connector housing 40
A tubular terminal 41 is integrally fixed to (hereinafter, referred to as a housing), and the tubular terminal 41 has an opening 42 at its tip and is hollow inside. In addition, the feeder wire 20 is in a state of facing the skin and has an internal insulator 26.
The core wire 21 is exposed, and only the core wire 21 is drawn into the tubular terminal 41 and electrically connected to the tubular terminal 41 at the solder fixing portion 45 near the opening 42. A support member 55 of a spring member, which is generally a plate-shaped spring, sandwiches the feeder wire 20 to fix the self-confidence, and a spring arm 52 integral with the support member 55 extends in the outer longitudinal direction of the housing 40. It is fitted in the positioning groove 43 provided,
The tip thereof is housed in a spring arm tip housing portion 49 provided in the positioning groove 43. Therefore, the biasing of the spring arm 52 enables connection with the ground. In addition, a shield wire (bias element) for electromagnetic shielding (not shown) is stretched around the outer periphery of the insulator 26, and the spring arm 52 is sandwiched between the support portion 55 of the spring member and the coating. Is used as the ground terminal.

[0004]

At the time of assembling the conventional connector as described above, the feeder wire 20 is manually inserted into the housing 40 with the core wire 21 at the beginning, and at this time, the feeder wire 20 is provided in the positioning groove 43. In order to accommodate the tip of the spring arm 52 in the spring arm tip accommodating portion 49, it is necessary to simultaneously press the spring arm 52 with a hand to align it with the positioning groove 43. Further, at the same time as taking such trouble, the spring arm 52
There is also the possibility of deforming while holding down.

Further, the feeder line 2 is inserted into the housing 40.
When inserting 0, the core wire 21 has to be drawn into the thinner cylindrical terminal 41, so that it is necessary to rely on manual work, which requires concentration and time. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a covered electric wire connector and an assembling method thereof that can be easily and surely assembled.

[0006]

SUMMARY OF THE INVENTION The above object is to provide a cylindrical terminal for fixing only a core wire inside a covered electric wire and a housing for holding the covered electric wire integrally with each other. There is a positioning groove for the spring extending to the ground, and a connector for connecting to the ground by the biasing force of the spring, wherein the tip of the spring has a protrusion protruding in a direction intersecting the longitudinal direction of the terminal. Is provided with a guide groove for guiding the convex portion along the longitudinal direction of the terminal. An end member of the spring on the side of the covered electric wire may be fixed to the electric wire and connected to a shield wire (bias element) in the electric wire.

Further, in this method of assembling the connector and the covered electric wire, the needle having the core wire holding portion of the covered electric wire at the tip is inserted from the opening of the tip end of the cylindrical terminal to penetrate the inside of the housing, and the end of the core wire is inserted into the needle. The present invention is carried out by a step of holding the tip end and pulling out the needle from the tubular terminal to penetrate the core wire into the tubular terminal to draw the covered electric wire into the housing, and fixing the covered electric wire inside the housing by the electric wire fixing member. Achieve the purpose of.

After that, after removing the needle from the core wire, the core wire is soldered at the opening position of the cylindrical terminal, and the remaining core wire protruding from this opening is cut to treat the tip portion of the cylindrical terminal. It can be performed. Also,
When the needle is pulled out from the tubular terminal, it is preferable that the tip of the spring, which is fixed to the covered electric wire and extends in the longitudinal direction of the tubular terminal, is aligned with the spring guide groove arranged on the side surface of the housing.

In the above-described connector assembling method of the present invention, there is provided a core wire threading tool having a needle to be inserted into the tubular terminal and a plate for supporting the needle at a position facing the tip of the tubular terminal. Preference is given to using.

[0010]

By engaging the above-mentioned convex portion of the end portion of the spring on the cylindrical terminal side with the guide groove of the positioning groove,
Even if the convex portion is not assisted, the convex portion is guided without being disengaged from the positioning groove and without exerting an excessive force. In addition, the needle of the core wire passing tool that holds the core wire of the covered electric wire at the tip allows the core wire to pass through the inside of the housing and be pulled out from the opening of the end of the tubular terminal, so that the core wire can be easily inserted into the tubular terminal. Can be connected to.

[0011]

Embodiments of the connector according to the present invention will be described below in detail with reference to the drawings. It should be noted that elements having the same functions as those shown in FIGS. 7 and 8 are designated by the same reference numerals, and the description of the operations will be omitted. 1 is an exploded perspective view of a connector according to an embodiment of the present invention, and FIG. 2 is a sectional view perpendicular to the longitudinal direction of the connector of FIG.

The connector housing 10 (hereinafter referred to as a housing) has the same structure except the structure of the positioning groove 43 shown in FIG. 7, and has a cylindrical terminal 11 and an opening 12. A guide groove 14 having a cross-sectional shape shown in FIG. 2 is provided along the longitudinal direction of the terminal 11 in the positioning groove 13 provided in the outer longitudinal direction of the housing 10. The feeder wire 20 also has the same structure as in FIG. 7, and the spring member is composed of a spring arm 22 and a supporting portion 25, and the feeder wire 20 is fixed by being sandwiched between the supporting portions 25. A plate spring is usually used as the spring member.

The tip portion 23 of the spring arm 22 is provided with a convex portion 24 projecting in a direction intersecting with the longitudinal direction of the tubular terminal 11, and the guide groove 1 is provided at the time of assembly.
You will be guided along line 4. A shield wire (bias element) for electromagnetic shielding is stretched around the outer periphery of the insulator 26, and the spring arm 22 serves as a ground terminal by sandwiching the shield wire between the support portion 25 of the spring member and the coating. be able to.

Next, a method of assembling the connector of the present invention will be described. 3 and 4 are schematic perspective views showing the connector assembling method of the present invention. First, as shown in FIG.
From the opening 12 of the cylindrical terminal 11 integrally attached to the housing 10 to the plate 30 of the core wire passing tool 33.
The needle 31 provided in the housing 10 is inserted to penetrate the inside of the housing 10. Next, the core wire 21 that is exposed in the peeled state of the feeder wire 20 is held in the core wire holding hole 32 of the needle 31.

Then, as shown in FIG. 4, by pulling out the needle 31 from the cylindrical terminal 11, the core wire 21 is inserted into the cylindrical terminal 11 and the feeder wire 20 is drawn into the housing 10 (in other words, the housing). 1
0 is moved to the feeder line 20). At this time, by guiding the convex portion 24 of the tip end portion 23 of the spring arm 22 into the guide groove 14 of the housing 10, the feeder wire 20 and the tip end portion of the spring arm 22 are guided. 23
Fits straight into the housing 10 at a predetermined position and requires almost no manual assistance.

5 and 6 are perspective views of the connector of the present invention. As can be seen from the figure, the cover 16 which is a wire fixing member from the feeder wire 20 side of the housing 10
And the cover 16 is fixed by the hook 18 provided on the housing 10. And the tubular terminal 11
In a state in which an unnecessary portion of the core wire 21 after being removed from the needle 31 is exposed from the opening 12 of the above, by attaching the vicinity of the opening 12 to a solder bath or the like in this state, the solder portion 15 is formed by soldering. To do. The length of the solder part 15 is 3 m
About m is preferable. Finally, the unused portion of the core wire 21 which is still protruding is cut to obtain a finished product as shown in FIG. The hook 17 provided on the cover 16 is provided to more securely lock the mating connector.

In the above embodiment, the number of core wires 21 is set to two to correspond to the numbers of the needles 31 and the cylindrical terminals 11, but the present invention can be applied to an electric wire having one core wire or a plurality of core wires. Further, in the above embodiment, the present invention is applied to the feeder wire for the antenna, but the present invention can be applied to any covered electric wire using the tubular terminal.

[0018]

As described above in detail, in the connector and the method of assembling the connector according to the present invention, the protrusion of the end of the spring on the side of the tubular terminal is engaged with the guide groove of the positioning groove. Even if there is no assistance, the convex portion is guided without being disengaged from the positioning groove and without exerting an excessive force, and the accident such as the deformation of the spring does not occur. The core wire end is pulled out from the opening of the distal end of the tubular terminal by the needle of the core wire passing tool and penetrated into the tubular terminal to assemble the connector, so that the core wire can be easily and accurately connected. Therefore, it is possible to provide a connector for a covered electric wire that can be easily and surely assembled and a method for assembling the same.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a connector according to an embodiment of the present invention.

2 is a cross-sectional view of the connector of FIG. 1 perpendicular to the longitudinal direction.

FIG. 3 is a schematic perspective view showing a connector assembling method of the present invention.

FIG. 4 is a schematic perspective view showing a connector assembling method of the present invention.

FIG. 5 is a perspective view of the connector of the present invention.

FIG. 6 is a perspective view of the connector of the present invention.

FIG. 7 is an exploded perspective view of a conventional connector.

8 is a longitudinal sectional view of the connector of FIG.

[Explanation of symbols]

 10, 40 Connector housing 11, 41 Cylindrical terminal 12, 42 Opening 13, 43 Positioning groove 14 Guide groove 15, 45 20 Feeder wire 21 Core wire 22, 52 Spring arm 23, 53 Spring arm tip part 24 Convex part 26 Insulator 31 Needle 32 Core wire holding part 33 Core wire threading tool

Claims (5)

[Claims] 1. A tubular terminal for fixing only a core wire inside the covered electric wire and a housing for holding the covered electric wire are integrally formed, and a spring positioning groove extending in a longitudinal direction of the cylindrical terminal is provided on a side surface of the housing. A connector for connecting to the ground by biasing the spring, the protrusion protruding in a direction intersecting the longitudinal direction of the terminal at the tip of the spring, and the protrusion in the positioning groove having a cylindrical terminal. A connector provided with a guide groove for guiding along a longitudinal direction. 2. The grounding member, wherein an end of the spring on the side of the covered electric wire is fixed to the electric wire and is connected to a shield wire (bias element) in the electric wire.
A connector as described in. 3. A method of assembling a connector, in which a tubular terminal and a housing are integrally formed, and a covered electric wire, wherein a needle having a core wire holding portion of the covered electric wire at a tip is inserted from an opening of the tip of the cylindrical terminal. Through the inside of the housing, hold the core wire end portion in the core wire holding portion, and pull out the needle from the cylindrical terminal to penetrate the core wire into the cylindrical terminal and draw the covered electric wire into the housing. Assembling method. 4. When the needle is pulled out from the tubular terminal, a protrusion of a tip of a spring, which is fixed to the covered electric wire and extends in the longitudinal direction of the tubular terminal, is provided in a guide groove of the spring arranged on a side surface of the housing. The assembling method according to claim 3, wherein the assembling method is performed. 5. The core wire threading tool used in the assembly method according to claim 3, wherein the needle is inserted into the tubular terminal, and the plate supports the needle at a position facing the distal end of the tubular terminal. A core wire threading tool comprising: