JP2708360B2 - Connector and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency signal input / output connector used for connecting a coaxial cable of a television antenna to a receiver, for example. Around the connection surface of a coaxial connector
And a method of manufacturing the same.

[0002]

BACKGROUND ART For example, a coaxial connector, the Electronic Industries Association of Japan, C12 form, is standardized as C15 form, as shown in FIGS. 7 and 8, the outer cylindrical forming the helical screw 1 to the outer surface The terminal 2 is provided with an insulator 3 made of resin, and the center axis of the insulator 3 (on the axis of the external terminal 2)
The internal terminal 4 is inserted into the device.

[0003] The connector C _1, for example, as shown in the figure, is used as a television radio wave input terminal of the television receiver, the connector C ₂ fixed to the coaxial cable p terminal fitting (Fig. 8 chain line state).

[0004]

The above coaxial connector C ₁
The conventional external terminal 2 employs a milling screw or a die screw, a rolled screw, or a forged screw cut out of a rod-shaped material by cutting. The production of these screws is
Especially in production speed.

Further, conventionally, after the formation of the external terminal 2, the external terminal 2 and the like, aligned with parts feeder or the like,
It is further conveyed, and the interior of the insulator 3 and the internal terminals 4 is provided. This is poor productivity.

An object that the invention, under the above circumstances, to increase the productivity of Turkey connector of having a collision condition onto the connection surface peripheral such as a coaxial connector having a ridge on the periphery to the external terminal outer surface And

[0007]

In order to solve the above-mentioned problems, in the invention according to the structure of the connector, the cylindrical connecting surface is formed by pressing a rectangular flat plate-like body by press working.
Unplugged swelled the ridges simultaneously form the shape in the outer peripheral surface thereof by molding the plate-like body into a cylindrical shape, and said projection are the same screw
Is located on the missing hoop line every pitch
The configuration was

Further, in the invention according to the method for manufacturing a connector, the above plate-like body is punched out by press working.
Sometimes, the collision conditions, lack every round one pitch of the same screw
It is formed by swelling on the hanging wire, the plate is made cylindrical to form a connection surface, and an insulator is insert-molded in the cylinder, and internal terminals are inserted into the insulator. It is configured to be manufactured.

In this manufacturing method, a plurality of rectangular flat plate-like bodies forming the connection surface are punched out in a state of being connected to a band-shaped carrier in parallel in the band direction, and the insulator is insert-molded therein. Alternatively, a configuration in which each cylindrical object (external terminal) is separated from the carrier may be adopted.

[0010]

[Action] connector according to the present invention such a configuration, since the connecting portion (outer end child) is secured to a cylindrical shape,
There is no hindrance to the connection, and the plate and ridge are pressed
Since the plate is formed into a cylindrical shape at the same time by the work , the production is easy and the production cost can be reduced.

[0011] Further , the ridge forms a part of a thread.
Therefore, it can correspond to the above-mentioned C12 type and C15 type.
In addition, the threads formed by the ridges
Because it is missing, it can be molded securely by press molding
I can do it. Therefore, there is no problem in connectivity.

The preparation method according to this invention, by pressing, to form a connecting portion by molding a projecting plate-like member at the same time, can work to reduce the production cost. At this time, if the connection portion (plate-like body) is connected to the carrier, the formation of the connection portion is performed by a progressive press, which further improves the productivity. This is advantageous in various points such as that positioning can be performed by using the pin holes (see Examples).

[0013]

EXAMPLES coaxial connector C ₁ of this embodiment, as shown in FIGS. 1 and 2, by forming a rectangular plate body into a cylindrical shape,
On the periphery thereof, a ridge 11 on the helix line of the same screw is formed by cutting and raising to form an external terminal 12. If the ridge 11 is on the helix line, the ridge 11 is always located at an integer multiple of the screw pitch. Also, ridge 11
It is missing for each pitch of the helix. You
That is, the ridge 11 is formed every two pitches of the helix.
Have been.

The ridge 11 is intermittent even if it is not substantially the entire length of one round.
Manner may consist of a plurality of protrusions that are lacking, the number of the projections <br/>, length, position, as appropriate in consideration strength of the external terminals 12, the force at the fitting of the coaxial connector C _2, etc. Should be determined . Also, at that time, the projection is not trouble in terminal connection action later in shorter for straight, the helical snugly along curved in line is preferred.

A resin is insert-molded in the external terminal 12 and an insulator 13 is provided therein, and an internal terminal 14 is inserted on a central axis thereof.

The coaxial connector C ₁ is fitted into a hole of the mounting plate B as shown in FIG.
Is bent like a chain line, and the mounting plate B is clamped between the bent piece 12a and the protrusion 13b of the insulator 13 (the protrusion 12b of the external terminal 12). Alternatively, the foot 12a is attached by soldering to a circuit on the attachment plate B.

[0017] Next, an preparation example of a coaxial connector C ₁ of the above embodiment.

First, as shown in FIG. 3, when a plate-shaped body 12 'having a planar shape of the external terminal 12 is punched from a single band-shaped plate in a state of being connected to a band-shaped carrier 15 at the same time.
Then, the ridge 11 is cut and raised. At this time, ridge 11
Is missing every pitch, ie every two pitches
Because it is on the helix line, there is little interference with the cutting and raising blade, and the circle
A smooth and accurate ridge 11 can be formed.

As shown in FIG. 4, it is preferable that the ridge 11 is cut and raised so that the lower end thereof does not protrude from the cut and raised hole 11a. At this time, the lower end may be continuous with the edge of the cut-and-raised hole 11a without being cut. This allows
At the time of insert molding with the resin a described later, the resin is prevented from protruding from the hole 11a. Also, the raised end
As can be seen from the figure, the cross section is triangular and resembles a thread. The number of external terminals 12 punched at one time is arbitrary. At the time of punching, the positioning holes 16 and the projections 12b corresponding to the respective external terminals 12 are formed at the same time.

Next, as shown in FIG. 5 , each of the plate members 12 'is formed into a cylindrical shape by a well-known means, and the external terminals 12 are formed.
Then, as shown in FIG. 6 , the external terminals 12 are put into the molding die w, and the resin a is injected to insert-mold the insulator 13 and the protrusion 13b. At this time, the pin 17 is inserted into the hole 16 for positioning. The number of external terminals 12 to be insert-molded is arbitrary.

[0021] After molding of the insulator 13, die cut, disconnecting the external terminal 12 from the carrier 15, by inserting the internal terminal 14 in the insulator 13, to obtain a coaxial connector C _1. The insertion of the internal terminal 14 may be performed before disconnection.

The step of punching the plate 12 ′ , the step of cylindrically forming the plate 12 ′ , the step of forming the insulator 13 and the mounting portion 23, and the step of inserting the internal terminals 14 and the contacts 24 are performed in a series of continuous steps. It is good to

Further, the formation of ridges 1 1, regardless of the cut and raised (cut) may be swelled by means well known in the drawing, and the like.

[0024]

The present invention is configured as described above.
The productivity is improved, and the price of the connector can be reduced. In particular, for the ridge was a helical line of the same screw
Thus, a female terminal can be screwed into a connection terminal such as a cylindrical external terminal as in the conventional case, and it is much cheaper than a cut-out screw or the like. At this time, a square plane
The plate-shaped body is made cylindrical, so the cylinder is cut in the axial direction.
The number of eyes is one, and the continuity of the screw at the cut is also
Easy to keep. In addition, the ridge is the same screw
Located on the feeder line, so that molding is smooth and accurate
And the same connection characteristics as the conventional one can be secured.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment.

FIG. 2 is a sectional view of the embodiment.

FIG. 3 is a diagram illustrating the production of the embodiment.

FIG. 4 is an enlarged sectional view of a main part of the embodiment.

FIG. 5 is a diagram illustrating the production of the embodiment.

FIG. 6 is a diagram illustrating the production of the embodiment.

FIG. 7 is an explanatory diagram of use of a conventional example.

FIG. 8 is a sectional view for explaining use of a conventional example.

[Explanation of symbols]

11 ridges 12 external terminals 12a projections 13 insulator 13b insulator projections 14 internal terminal 15 carrier 16 positioning hole 17 pins a resin w mold C ₁ of the leg 12b relay terminal, C ₂ coaxial connector B mounted Plate P Coaxial cable

Claims (5)

(57) [Claims] In 1. A connecting surface is cylindrical, butt Article 1 1 on its peripheral surface
Bulging of a connector C ₁ to but formed, the cylindrical connecting surface, by press working, the ridge 11 at the same time punching the rectangular planar plate-like body 12 '
It was, at its outer peripheral surface by shaping the plate member 12 'to the cylindrical
All SANYO been made form, and the ridges 11 lack every round one pitch of the same screws
A connector characterized by being located on a wrapper line . 2. The connector according to claim 1, wherein an insulator 13 is provided inside the cylindrical external terminal 12 forming a cylindrical connection surface, and an internal terminal 14 is provided on the axis of the external terminal 12 of the insulator 13. a coaxial connector C ₁ inserted and the external terminal 12, by pressing, simultaneously bulging of the ridge 11 when punching the rectangular planar plate-like body 12 '
Then, the plate-shaped body 12 ′ is formed into a cylindrical shape and the outer peripheral surface thereof is formed.
And the ridges 11 are missing at every pitch and one circumference of the same screw.
A connector characterized by being located on a wrapper line . 3. The method for manufacturing a connector according to claim 1, wherein the rectangular planar plate-shaped body 12 ′ forming a cylindrical connection surface.
Of a plurality, simultaneously punched in a state of being connected in parallel to the strip direction in a strip carrier 1 5, the collision Article 1 1, the
A method for manufacturing a connector, characterized in that the same screw is formed by swelling on a winding wire that is missing at every one pitch and one circumference , and that the plate-shaped body 12 ′ is formed into a cylindrical shape and then separated from the carrier 15. 4. A method of manufacturing a coaxial connector C ₁ of claim 2 Symbol mounting, by press working, the external terminal 1
2 at the same time as punching out the plate-shaped body 12 ′.
With the same screw as above
After the plate-shaped body 12 ′ is formed into a cylindrical shape, the insulator 13 is inserted into the cylindrical external terminal 12.
And a method of manufacturing a coaxial connector by inserting the internal terminals 14 into the insulator 13. 5. A plurality of plate-like members 12 'of said external terminals 12 are punched out in a state of being connected to a band-like carrier 15 in parallel in the band direction, and said insulator 13 is insert-molded.
The method according to claim 4, wherein each external terminal (12) is separated from the carrier (15).