JP2547875Y2 - connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector fitted to a plurality of contact pins, and more particularly to a connector capable of absorbing a variation in pitch between contact pins.

[0002]

2. Description of the Related Art Contact pins include, for example, tab contacts (hereinafter referred to as tabs) whose contact portions are plate-shaped. The tab is used for connecting a cable to a board or a housing, connecting cables, or the like. For example, a female contact on the female connector side attached to the end of the cable is connected to a tab attached to the board. Such tabs are provided with a plurality of tabs in parallel, and there is a multi-pole connector for connecting a plurality of female contacts to these tabs. In such a multi-pole connector, if the distance between the tabs of the plurality of poles (between the contact pitches) varies, the female contact may not be fitted properly. In view of the above, a connector that can be fitted to a contact pin having a variation between pitches has been proposed. As such a connector, for example, a connector shown in FIG. 7 described in Japanese Patent Publication No.
FIG. 8 described in Japanese Patent Publication No. 896, and FIG. 9 described in Japanese Utility Model Publication No. 50-7511 are known.

[0003]

In the conventional connector shown in FIG. 7, the connector housings 11, 11 are connected by flexible front and rear connection pieces 12, 12, so that the housing pitch P can be adjusted. However, since the front and rear connection pieces 12 are structured to bend in opposite directions, when the rear side between the housings 11 is pinched and narrowed, or when the front side is pinched and expanded, V There is a disadvantage that the pitch P does not spread in a character shape and the pitch P cannot be easily adjusted. Further, in the connector shown in FIG. 8, since the connection between the connector housings 13 and 13 is supported by a single connection piece 14, the connection piece 14 cannot have a sufficient spring property due to the strength of the connector, and the pitch of the connector is reduced. There is a problem that adjustment cannot be performed easily. In the connector shown in FIG. 9, the connector housings 15, 15 are
This connector is also connected by a rear connecting piece 17, but also in this connector, when the rear side between the housings 15 and 15 is pinched and narrowed, or when the front side is pinched and expanded,
There is a problem in that the pitch P does not expand in a V-shape and the pitch P cannot be easily adjusted.

The present invention has been proposed in order to solve such problems of the prior art, and it is possible to easily adjust the pitch between the housings and sufficiently absorb the variation between the pitches of the contact pins. Accordingly, an object of the present invention is to provide a connector which can be fitted well with a plurality of contact pins.

[0005]

In order to achieve this object, a connector according to the present invention has a connecting block disposed between contact housings having contacts respectively fitted to contact pins of a plurality of poles. A spring-like front connecting piece that is diagonally bridged from the front of the contact housing to the middle of the connection block between the mating contact housing and the connection block, and is inclined from the middle of the contact housing to the rear of the connection block. It is configured to be connected with a rear connection piece having a spring property that is bridged in a shape.

The connector according to the present invention has a structure in which a contact fitted to a contact pin is also attached to the connection block.

The connector according to the present invention has a structure in which the spring force of the front connecting piece is weaker than the spring force of the rear connecting piece.

[0008]

According to the structure corresponding to the first aspect, since the adjacent contact housings are connected to the connection block by the front and rear connection pieces having a spring property, the pitch between the contact housings can be simplified in the left-right direction. , And the variation in the pitch of the contact pins to be fitted can be easily absorbed. When adjusting the housing pitch, you can easily change the direction of the housing to V-shape or inverted V-shape by pinching the rear part of the housing or expanding or narrowing the front part of the housing. Easy to do.

According to the second aspect of the present invention, by attaching the contact to the connection block, the contact can be further fitted to the multi-pole contact pin.

According to the third aspect of the present invention, the spring force of the front connecting piece is made weaker than the spring force of the rear connecting piece. Can also be adjusted, and variations in the vertical direction of the contact pins can be absorbed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the connector according to the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of this connector. In this figure, female contacts 3 fitted to tab contacts 2 (hereinafter referred to as tabs 2), which are two-pole contact pins, are mounted in left and right contact housings 1 each having a rectangular cylindrical shape. The lead wire 4 connected to the crimping portion 3a of the housing 3 is pulled out from the rear portion of the housing 1. As shown in FIG. 2, a tapered guide wall 5a for guiding the insertion of the tabs 2 arranged side by side with the contact surface facing upward and downward is formed in the tab insertion opening 5 opening to the front surface of the housing 1. Have been. These left and right contact housings 1 are integrally connected to a center housing 8 forming a connection block by front and rear connection pieces 6 and 7 having spring properties for absorbing a pitch shift of the tab 2. These connecting pieces 6 and 7 are integrally formed with housings 1 and 8 made of resin, and one front connecting piece 6 provided between the housing 1 and the center housing 8 is an inner side wall on the front side of the housing 1. From the side wall of the center housing 8 obliquely rearward. The two upper and lower rear connection pieces 7 provided between the housing 1 and the center housing 8 extend from the inner side wall on the rear side of the housing 1 to the side wall of the center housing 8 obliquely rearward. FIG.
Shows these rear connecting pieces 7 erected vertically. In addition, knobs 9 are protruded in the left-right direction above and below the rear end of the center housing 8.

In the connector having this configuration, the housing 1 is attached to the center housing 8 by the connecting pieces 6 and 7 having spring properties.
The connecting pieces 6 and 7 are bent to adjust the pitch of the left and right housings 1 in the left-right direction as shown by arrows in FIG. 1, and the front connecting piece 6 is formed of one piece. Therefore, the pitch between the left and right housings 1 can be adjusted in the vertical direction, as indicated by arrows in FIG. Therefore, as shown in FIG.
Even when the tab pitch P ₀ is wider than ₁ , when the tab 2 is inserted, the housing 1 is guided by the tapered guide wall 5 a formed in the insertion opening 5 and the housing 1 expands in the left-right direction. The tab 2 can be fitted into the female contact 3 without difficulty. At this time, the upper and lower knobs 9 at the rear part of the center housing 8 are pinched and pushed, so that the housing pitch P ₁
The force which spreads can be added. Even if narrow Tabupitchi P ₀ as compared to the left and right housing pitch P _1, it is possible to absorb the pitch deviation of the tab 2 by the guide of the guide wall 5a. When the pitch deviation is large, a force in the inward direction by holding the left and right housing 1, by narrowing the housing pitch P _1, by matching both pitch P _0, P _1, performs fitting of the tabs 2 smoothly be able to. Also in this connector, not only to absorb the Tabupitchi P _0, previously Tabupitchi P ₀ and the housing pitch P
By shifting ₁ , the tension is applied by the connecting pieces 6 and 7 having spring properties after fitting, and the contact 3 in the housing 1 and the inner wall 1 a of the housing 1 compete with each other as shown in FIG. The rattling can also be reduced. Therefore, by using this connector for a speaker box or the like that generates vibration, rattling noise from the connector can be prevented.

In the above-described embodiment, the center housing 8 is provided simply for supporting the left and right housings 1. However, the female contacts 3 are also mounted on the center housing 8, and a three-pole connector is provided. You may comprise.

The present invention can be applied not only to a two-pole or three-pole connector but also to a multi-pole connector having a plurality of contacts. FIG. 6 shows an embodiment in which the present invention is applied to a multi-pole connector in which a plurality of tab contacts 2 integral with a housing 10 are fitted. The center housing 8 supports the adjacent housings 1 and 1 having female contacts. Between the housing 1 and the center housing 8
The front connection piece 6 and the rear connection piece 7 having spring properties are connected. In the embodiment shown in this figure, each center housing 8 can be provided with a female contact.

In each of the embodiments described above, the case where the contact pin is a tab contact has been described. However, the present invention can be applied to a case where the contact pin is a round pin. The present invention is also applicable to a case where the contact pins are female contacts and male contacts are mounted in the contact housing 1.

[0016]

As described above, according to the present invention, the pitch between the contact housings can be changed, so that the variation in the pitch between the contact pins fitted to the contacts in the housing can be absorbed. The connector can be satisfactorily fitted to the contact pin. Also, since the contact housing and the connection block are connected by the front connection piece and the rear connection piece that are slanted,
The pitch between the contact housings can be adjusted relatively easily.

[Brief description of the drawings]

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

FIG. 2 is a plan view showing a tab insertion opening of the connector of FIG. 1 with a part cut away.

FIG. 3 is a rear view of the connector.

FIG. 4 is a perspective view showing the connector bent in a vertical direction.

FIG. 5 is a cross-sectional view of the connector.

FIG. 6 is a plan view showing a connector according to another embodiment.

FIG. 7 is a plan view showing an example of a conventional connector.

FIG. 8 is a plan view showing another example of a conventional connector.

FIG. 9 is a plan view showing still another example of the conventional connector.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 contact housing 2 tab 3 female contact 4 lead wire 5 tab insertion rear part 6 spring connection front connection piece 7 spring connection rear connection piece 8 center housing 9 knob P ₀ tab pitch P ₁ housing pitch

Claims (3)

(57) [Scope of request for utility model registration] A connection block is provided between contact housings having contacts respectively fitted to a plurality of contact pins. A connection block is provided between adjacent contact housings and a connection block from a front portion of the contact housing. Connected with a spring-like front connection piece that is diagonally bridged in the middle of the connection block and a springy rear connection piece that is slantly bridged from the middle of the contact housing to the rear of the connection block. The connector characterized by the above. 2. The connector according to claim 1, wherein a contact fitted to the contact pin is attached to the connection block. 3. The spring force of the front connecting piece is made weaker than the spring force of the rear connecting piece.
Or the connector according to claim 2.