JPH088022A - Manufacture of connector - Google Patents

Abstract

PURPOSE:To provide a manufacturing method for a connector capable of separately insert-molding every low, jointly forming a required number of rows by locking separated resin base bodies, and juxtaposing locking pins needed without any restriction in simple way. CONSTITUTION:At least one row of locking pin 2 of a plurality row of locking pins is protrusively formed in a separated resin base body 1A by insert-molding. A locking part 3 is formed in the separated resin base body 1A, a plurality of separated resin base bodies 1A obtained by insert-molding the locking pins in each row are connected by locking together their own locking parts 3 to jointly form a connector (a) in which a plurality row of locking pins 2 are juxtaposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a connector in which an engaging pin forming a terminal is projectingly formed on a resin base body by insert molding.

[0002]

2. Description of the Related Art For example, in a female connector, an engaging pin that forms a terminal is formed by projecting on a resin base body by insert molding.
This engaging pin is formed so that the engaging pin is projected at a predetermined interval (generally, the projecting portion is formed by bifurcating) and has repulsive elasticity in the opening direction. .

Therefore, the projecting pin of the male connector is pushed between the pair of engaging pins and is connected and engaged in a crimped state by repulsive elasticity.

In general, a large number of pairs of the engagement pins are arranged in the longitudinal direction, and the pair of engagement pins forming the rows are arranged in two rows in the lateral direction.

Conventionally, in the case of manufacturing such a connector, a large number of engaging pins are inserted into a mold, and a resin is molded to integrally mold them.

However, since it can be produced by one-time insert molding, the production efficiency is good, but since a large number of engaging pins in a plurality of rows must be inserted, the insert molding is not only troublesome, but also it is integrated by the mold. Due to molding, due to problems such as slide mold and undercut, up to two rows can be integrally molded with the slide mold as shown in FIG. 6, but it is impossible to integrally mold three rows or more.

On the other hand, a method of press-fitting and fixing an engaging pin to a resin base body may be considered instead of insert molding. However, the pull-out strength may be weaker than that of insert molding, and the flux for pretreatment with soldering may be used. In the coating process, there is a problem that the flux rises from the press-fitting and fastening holes, and there are many cases where the use is restricted.

Therefore, it is preferable to perform integral molding by insert molding, but in the conventional integral molding method, there has been a restriction that a pair of engaging pins can be arranged side by side only in one or two rows. The present invention solves such a problem, and each row is divided into insert-molded pieces, and can be jointed by simply engaging the necessary number of rows. It is intended to provide an excellent method for manufacturing a connector in which a pair of engaging pins can be arranged in parallel by a required number of rows.

[0009]

The gist of the present invention will be described with reference to the accompanying drawings.

In a method of manufacturing a connector a in which a pair of engagement pins 2 are formed side by side on a resin base body 1 in a protruding state in a plurality of rows, at least one row of the engagement pins 2 is inserted among the plurality of rows of the engagement pins 2. A plurality of divided resin base bodies 1A in which the divided resin base bodies 1A are formed in a protruding state by molding, the engaging portions 3 are formed in the divided resin base bodies 1A, and the engagement pins 2 of each row are insert-molded are formed. The present invention relates to a method of manufacturing a connector, characterized in that the engaging portions 3 are engaged with each other and connected to each other, and a connector a in which a plurality of rows of engaging pins 2 are arranged side by side is jointly formed.

Further, a pair of engaging pins 2 having a repulsive elasticity in the opening direction are provided with the engaging pins 2 projecting at a predetermined interval.
In the method of manufacturing the female connector a in which a plurality of rows are formed on the resin base body 1, only one engagement pin 2A on one side of the pair of engagement pins 2 in each row is included in the plurality of rows of engagement pins 2. A plurality of divided resin base bodies 1A, which are formed by insert molding on the divided resin base body 1A in a projecting state and which have one side of the engagement pins 2A insert-molded, are connected to each other so that a pair of engagement pins 2 project to form a single row of engagement. A plurality of connecting resin base bodies 1B are arranged side by side to form a connecting resin base body 1B in which the pins 2 are projected, and the divided resin base bodies 1A thus formed are connected one after another. The present invention relates to a method for manufacturing a connector, which is characterized in that a female connector a in which mating pins 2 are arranged in parallel is jointly formed.

[0012]

For example, a connector in which a plurality of divided resin base bodies 1A in which the engagement pins 2 of each row are insert-molded are connected by engaging their engaging portions 3 with each other, and the engagement pins 2 of a plurality of rows are arranged in parallel. splice a.

[0013]

1 to 4 show a first embodiment.

In this embodiment, a female connector a in which a pair of engaging pins 2 are arranged side by side in three columns is manufactured. Each pair of engaging pins 2 has its tip portion bifurcated as usual. To form a pair of engagement pins 2 having a predetermined interval, and the two engagement pins 2A which are branched and opposed to each other are formed so as to have repulsive elasticity in the opening direction.

In this embodiment, the pair of engagement pins 2 (2A
2A) is formed by insert-molding a divided resin base body 1A in which a large number of longitudinally protruding columnar resin base bodies 1A are formed, and three divided resin base bodies 1A are laterally joined and manufactured.

The engaging portion 3 has a shape in which the left and right side surfaces of each divided resin base body 1A are alternately concave and convex in the vertical direction, and the concave and convex states of the concave and convex surfaces are opposite to each other on the right and left side surfaces. Further, a convex engaging portion is formed on one side, and a concave engaging portion is formed on the other side corresponding to the convex engaging portion, and the concave engaging portion on one side of one of the divided resin base bodies 1A to be joined adjacent to each other. Is engaged with the other protrusion engaging portion on the other side of the divided resin base body 1A to fit and engage the left and right concavo-convex surfaces, and in the present embodiment, no adhesive or the like is required. The structure is such that it is firmly joined together.

The connector a thus joined is engaged with the fitting portion of the cover member 4. A concave portion engaging portion 4A with which the convex portion engaging portion on one side of the connector a is engaged is provided on one side surface of the fitting portion, and a convex portion with which a concave portion engaging portion on the other side of the connector a is joined to the other side surface. The engaging portion 4B is formed so that the fitting portion of the connector a can be fitted firmly by the same engaging structure as that of the divided resin base body 1A without using an adhesive or the like. There is.

The cover member 4 has a storage space for accommodating the engaging pin 2 projecting from the female connector a above the fitting portion, and the cover is provided on the upper wall surface of the storage space. An insertion hole 6 into which the projecting pin 5 of the male connector b into which the member 4 is fitted is inserted is formed. When the male connector b is fitted into the cover member 4, the projecting pin 5 is inserted through each insertion hole 6. Inserted between the pair of engagement pins 2A of the engagement pin 2,
The repulsive elasticity of the locking pin 2A is used for pressure-bonding connection. Therefore, in the present embodiment, by fitting the connector a joined to the fitting portion of the cover member 4 as described above, the respective divided resin base bodies 1A are firmly positioned and integrated, and the engaging pin 2 is Covered by the cover member 4, the connection with the male connector b is ensured.

In this way, in this embodiment, each row is divided and insert-molded, and moreover, the divided resin base bodies 1A can be jointed by simply engaging the required number of rows. It is possible to manufacture a connector a having a multi-column vertical structure, which has been considered impossible to form more than one column, and the manufacturing is very simple, and an excellent connector in which as many engaging pins as necessary can be arranged in parallel without restriction. It becomes the manufacturing method of.

Further, in the first embodiment, as in the conventional example, a large number of engaging pins 2 having a shape as shown in FIG. 8 are punched from a plate material at a predetermined pitch (interval) at a time, and the engaging pins 2 arranged in parallel in a row are formed. As shown in FIG. 9, the tip end is folded back to form a pair of engagement pins 2 (2A, 2A) with which the engagement pins 2A face each other, and this is inserted and molded.

However, in order to save material and improve mass productivity, a large number of engaging pins 2 are punched out in this way, and therefore, a pair of engaging pins 2A are arranged in a vertical row rather than a punching interval in consideration of folding back. If it is desired to make the interval narrower, there is a problem that it is impossible to punch a large number of chips at once and insert-mold them as they are.

Therefore, in the second embodiment of the invention according to claim 2, the dividing size of the dividing resin base body 1A is further reduced, and among the engaging pins 2 in a plurality of rows, a pair of engaging pins in each row. 2 one side of the engaging pin 2A is divided and punched in a narrow pitch in a vertical state, and only the one side engaging pin 2A is cut by insert molding to divide the resin base body 1A.
A plurality of divided resin base bodies 1A in which the engagement pins 2A on one side are insert-molded are connected to each other,
A pair of engagement pins 2 protrude to form a row of engagement pins 2 (2A.2
A) A divided resin base body 1A formed by forming a connected resin base body 1B protruding therefrom and further molding in this way
Female connector a in which a plurality of connecting resin base bodies 1B are connected in parallel and a plurality of rows of engaging pins 2 are arranged in parallel.
Are formed by splicing.

Therefore, according to this method, the female connector a
By forming the engagement pin 2A on one side of the pair of engagement pins 2 by dividing the engagement pin 2, the pair of engagement pins 2 having repulsive elasticity and having a narrow vertical column interval can be easily realized. In addition, at this time, since a large number of the engaging pins 2 can be simultaneously punched out from the plate material in a parallel juxtaposed manner even if the intervals are narrow as in the above-mentioned conventional method, even if the intervals between the engaging pins 2 are narrow, there is no restriction and the cost is not increased. It will be an excellent connector manufacturing method.

[0024]

As described above, according to the present invention, each row is divided and insert-molded, and moreover, the divided resin base bodies can be jointly formed by simply engaging the necessary number of rows. It is an excellent method of manufacturing a connector in which the engaging pins can be arranged in parallel in a required number of rows without any restrictions.

By this method, one of the pair of engaging pins of the female connector is formed by dividing the engaging pin, so that each pair of engaging pins having repulsive elasticity is arranged in the vertical direction. Even if the spacing is narrow, it is possible to easily realize it, and at this time, even if the spacing is narrow, a large number of engaging pins can be punched simultaneously from the plate material side by side in a row. It is an excellent method of manufacturing a connector that can be manufactured without using a connector.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a first embodiment during split molding.

FIG. 2 is a perspective view of the first embodiment during split molding.

FIG. 3 is a cross-sectional view at the time of split molding in the spliced and formed state of the first embodiment.

FIG. 4 is a cross-sectional view of a usage state of the first embodiment.

FIG. 5 is a cross-sectional view of the second embodiment in which split molding is performed for each engagement pin on one side of the pair of engagement pins of the second embodiment during split molding.

FIG. 6 is a cross-sectional view of the jointed and formed state of the second embodiment.

FIG. 7 is an explanatory cross-sectional view of a conventional example during integral molding.

FIG. 8 is an explanatory diagram at the time of punching and forming the engagement pin.

FIG. 9 is an explanatory perspective view of the completed state of bending of the engagement pin.

[Explanation of symbols]

 1 Resin Base Body 1A Divided Resin Base Body 1B Connection Resin Base Body 2 Engagement Pin 2A Engagement Pin 3 Engagement Part a Connector

Claims (2)

[Claims] 1. A method of manufacturing a connector, wherein a pair of engagement pins are formed side by side on a resin base body so as to project in a plurality of rows.
Among the engagement pins of at least a plurality of rows, one row of the engagement pins is formed in a protruding state on the divided resin base body by insert molding, and an engagement portion is formed on the divided resin base body. A method for manufacturing a connector, wherein a plurality of divided resin base bodies formed by insert molding are connected by engaging their engaging portions with each other, and a connector having a plurality of rows of engaging pins arranged side by side is jointed. 2. A method for manufacturing a female connector in which a plurality of engagement pins are provided at predetermined intervals and a pair of engagement pins having repulsion elasticity in the opening direction are formed on a resin base body so as to project in a plurality of rows. Of the plurality of rows of engagement pins, only one engagement pin of a pair of engagement pins in each row is formed in a protruding state on the divided resin base body by insert molding, and the one engagement pin is insert molded. A plurality of divided resin base bodies are connected to each other to form a connected resin base body in which a pair of engagement pins protrude and a row of engagement pins protrude, and the divided resin base bodies formed in this manner are also connected one after another. Then, a method for manufacturing a connector is characterized in that a plurality of connecting resin base bodies are connected in parallel and a female connector in which a plurality of rows of engaging pins are arranged in parallel is jointly formed.