JPS58186177A - Connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an improvement in a connector for collectively connecting flat cables.

Prior Art and Problems FIG. 1 shows a procedure for forming contacts in a conventional connector of this type. In the figure, 1 and 2 are contacts provided in two rows, and these are integrally formed on a ground space 3 made of a conductive material by pressing or the like. The contacts 1.2 are provided with the same pitch P, and the contact 2 is located in the center of the contact 1. In other words, the contacts 1 and 2 are arranged alternately at a pitch of 2 p, because the inherent nature of the connector requires that any contact be connected to the ground line. The pitch P is four times the core wire pitch of the flat cable 4 connected to the connector. The contact 1 has a bent portion 5 in the middle and a cantilevered contact piece 6 bent at right angles at the tip. The contact portion similarly has a bent portion 7 and a contact piece 8. Each contact) 1.2 terminal part at the base 9. IO is naturally located on the same plane as the ground base 3. The connector (9) formed in this way is inserted into the mold 11 by insert molding the portion from the folded part 51 of each contact 14 to the terminal part 9.10 as shown in FIG. configured. In fact, a mold (not shown) having fitting holes for each of the contacts 1 and 2 that protrudes is fitted and fixed above the mold 11 of the connector, and the terminals of the mating connector are The contact pieces of each contact @, 81 (@ are continued at this Omukai).

To connect the flat cable 4 to the connector 20, solder the core 1112 of the flat cable 4 (for the ground line, marked G in Figure 1) to the ground base 3, and also solder the core 1!13 (for the signal line) This is done by soldering the terminal (marked S in FIG. 1) to the terminal portion 9.10. For contacts that are not connected to the ground line, cut off the lower part of the terminal (
1), the core 113 is soldered onto this cut portion.

In such conventional connectors, two rows of contacts are formed adjacently protruding from a single ground base, and because there is a limit to the arrangement pitch, it is difficult to make each contact sufficiently wide. As a result, it is difficult to provide the contact portion with sufficient springiness, which causes a decrease in reliability when connecting the mating connector terminal. Also,
In this case, since the terminal portions to be insert-molded are on the same plane, the mold becomes complicated with an inclined surface as shown in FIG. In FIG. 3, reference numerals 14 and 15 indicate the shape of the contact holding portion of a sliding mold. The mold 14 has a plurality of protrusions 16 with both sides inclined at equal intervals.
The mold metal ball has a plurality of recesses 1 into which each projection 16 fits.
7 are arranged in parallel. When molding, the mode molds 14 and 15 are slid in the directions shown by the arrows, and the terminal part 90 is suppressed and held by the top surface of the protrusion 16 and the bottom surface of the recess 17, and the mold is performed. Molding is performed.

OBJECTS OF THE INVENTION The present invention is intended to solve the above-mentioned various drawbacks, and it is an object of the present invention to provide a connector that can improve the reliability when connecting the connector and can simplify the structure of the mold die. It is an object.

Structure of the Invention The present invention achieves the above-mentioned object by forming the contacts in each row on each side piece of the ground base having a U-shaped cross-section, thereby making it possible to increase the width of development and punching of the contacts in each row. In addition to improving the reliability when connecting the connectors, the contacts in each row are provided with locking parts that bend outward for positioning in the mold during insert molding. There is.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to FIGS. 4 to 6.

FIG. 4 is a perspective view showing the contact formation procedure of the connector according to the present invention, in which 21 is a ground base, 22.2
Reference numeral 3 indicates contacts provided in two rows.

The ground base 21 has a U-shaped cross section and is made of a conductive material.

The contacts n, 23 are formed integrally with the ground base 21 by pressing or the like. A plurality of contacts n are arranged in parallel at a pitch P, protruding from the 10,000 side pieces of the ground base 21, and are bent outward between the terminal part 6 at the base and the terminal connection part 1 at the tip. A locking portion γ is formed. In addition, a plurality of contactors 23 are arranged in parallel at a pitch P so as to protrude from the other side of the ground base 21, and between the terminal unit at the base and the terminal connection unit at the tip. A locking portion 31 is formed which is bent in the opposite direction. The locking part n and the locking part 31 are formed to be located between the contacts on opposite sides, and the terminal part projects straight from the side piece U, and the terminal part projects straight from the side piece U. After being bent, it is bent again so that the bent part is located on the same plane as the terminal part 29. Arrangement pitch P of each contact n, 23
is four times the core wire pitch of the flat cable 4 connected to the terminal unit 29 of each contact. Each terminal connection section 30 has a hole 33 for inserting a terminal of a mating connector, and a cantilevered contact piece 35 for connecting the terminal.

As shown in FIG. 5, the part formed in this way that extends from the folded part 9 of the contact 4 to the locking part 27K, and the part that extends from the folded part r of the contactor to the locking part 31VC, is inserted into the mold by inserting it. The connector is constructed by molding. In addition, in reality, 9 (not shown) is the mold wing of this connector (material).
The upper part has a terminal connection section for each contact that protrudes from the molded aperture.

(Capital) A mold with a fitting hole is fitted and fixed, and the terminals of the mating connector are inserted into each terminal connection part and 3 in this hole.
It is inserted into hole β, 33 of 0 and connected to each contact piece, 35.

The connection of the flat cable 4 to this group of connectors is as follows:
As in the past, the core 612 is soldered to the side piece 4 of the ground base 21, and the core @13 is connected to the terminal parts 6, 2.
This is done by soldering to 9. In this case, the lower part of the terminal part of the contact that is not connected to the ground line is cut off, and the core [13] is soldered onto this cut part.

Figure 6 shows the procedure for forming a mold using a metal mold.
39.40 indicates the shape of the contact holding portion of the sliding mold. The mold l has a groove 41 into which the locking part of the contact 22 fits, and a contact 23.
The mold is provided with a protrusion 42 that presses the locking part 31 of the contactor 23, and a groove 0 into which the locking part 31 of the contactor 23 fits, and a protrusion I that presses the locking part n of the contactor 22. and is provided. At the time of molding, each mold die α, 40 is slid in the adjacent direction shown by the arrow, and the upper part (unmolded part) of the locking part n that fits into the groove 4 is suppressed by the projection I, and the groove is The upper part of the locking part 31 that fits into the contact part 43 is suppressed by the protrusion 42, and molding is performed while holding each contact n and 23 without the need for a spacer.

Effects of the Invention As described above, according to the present invention, it is possible to achieve the following excellent effects.

Since the width of the contact development and punching can be made approximately twice as large as that of the conventional method, sufficient strength can be provided to the terminal connection portion, so reliability during connector connection can be improved.

(2) Each contact is formed with a locking portion that bends outward.1. Mold gold mK is c.

By simply forming grooves and protrusions corresponding to the locking portions, each contact can be held and molded without the need for a spacer, so the structure of the mold can be simplified.

[Brief explanation of drawings]

Figure 1 is a perspective view showing how to form contacts of a conventional connector, Figure 2 is a diagram of how to form the same mold, Figure 3 is a diagram of how to hold contacts using Celite mold WK, and Figure 4 is a connector according to the present invention. FIG. 5 is a perspective view showing the procedure for forming the contact, FIG. 5 is a diagram showing the procedure for forming the same mold, and FIG. 6 is a diagram showing the procedure for holding the contact using the sliding mold pear. In the figure, 4 is a flat cable, 12 and 13 are core wires,
21 is a ground base, 22 and 23 are contacts, 2
4゜ Grave is side piece, 25, 29 is terminal part, grave, 30
is a terminal connection part, 27 and 31 are locking parts, wings, 33 is a hole,
A, 35 is a contact piece, 37 is a folded part, opening mold, 39° is a molded metal fitting, 41, 43 is a groove, 42
, 44 is a protrusion, and 44 is a connector. Patent Applicant Fujitsu Ltd. Representative Patent Attorney Hisashi Tamamushi Gobe (3 others)
Dimensions - Fraud) Ward
・－Small dislike

Claims (1)

[Claims] A first terminal bent outward between the first terminal part at the base and the first terminal connection part at the tip is attached to the side piece of the ground paste with a U-shaped cross section made of a conductive material. A plurality of first contacts having a locking part and protruding from one end surface of the side are integrally formed at a pitch four times the core wire arrangement pitch of a flat cable connected to the first contacts, and are folded into one. A plurality of second contacts having curved second locking portions and protruding from one end face of the side are arranged at the same pitch as the first contacts, and the first locking portion is between the second contacts. and the second locking part is formed integrally with the first contact so that the second locking part is located between the first contacts, and the part extending from the lower part of each locking part of each contact to each terminal part is insert molded. A connector characterized by: