JPH0728709Y2 - connector - Google Patents

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、コネクタ、詳しくは一対のプラグ挿入部を有
し、双方のプラグ挿入部にそれぞれプラグが挿入される
ことによってプラグとコネクタとの間での信号の授受が
可能になる形式のコネクタに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention has a connector, specifically, a pair of plug insertion portions, and a plug and a connector are formed by inserting the plugs into both plug insertion portions. The present invention relates to a connector of a type capable of exchanging signals between the two.

〔従来の技術〕[Conventional technology]

第４図はこの形式のコネクタの回路図を示している。同
図において、100,200は各別のプラグ挿入部であり、こ
れらのプラグ挿入部100,200はそれぞれプラグ（不図
示）側の接点に対応する信号授受用の接点a,bとアース
用の接点ｃとを具備し、信号授受用の接点a,a同士、b,b
同士およびアース用の接点c,c同士がそれぞれ短絡され
ていると共に、片側の短絡路Ｂに一対の固定接点d,eが
並列に介在され、これらの固定接点d,eのそれぞれに対
応する可動接点f,gと他側の短絡路（Ａ）との間に終端
抵抗（Ｒ）が直列に介在されている。なお、アース用の
接点c,cの短絡路Ｃはアースされている。FIG. 4 shows a circuit diagram of this type of connector. In the figure, reference numerals 100 and 200 denote different plug insertion portions, and these plug insertion portions 100 and 200 respectively have contact points a and b for signal exchange and a contact point c for ground corresponding to contacts on the plug (not shown) side. Equipped with contacts a, a for mutual signal exchange, b, b
Each of them and the contacts c, c for grounding are short-circuited with each other, and a pair of fixed contacts d, e are interposed in parallel in the short-circuit path B on one side, and movable corresponding to each of these fixed contacts d, e. A terminating resistor (R) is interposed in series between the contacts f and g and the short circuit (A) on the other side. The short-circuit C of the ground contacts c, c is grounded.

第４図の回路を有する従来のコネクタを第５図に分解斜
視図で、第６図に同コネクタを背面図で、第７図に同コ
ネクタを断面図でそれぞれ示してある。FIG. 5 is an exploded perspective view of a conventional connector having the circuit of FIG. 4, FIG. 6 is a rear view of the same, and FIG. 7 is a sectional view of the same.

これらの図において、1,2は信号授受用の接片、３はア
ース用の接片で、これらの接片1,2,3はそれぞれ一枚の
金属板を曲成、すなわち曲げ加工して作られている。そ
して、それぞれの接片1,2,3の先端部分に上記接点a,b,c
が形成されていると共に、接点a,a同士の短絡路Ａ、接
点b,b同士の短絡路Ｂ、接点c,c同士の短絡路Ｃがそれぞ
れ接片1,1同士の連結部11、接片2,2同士の連結部21、接
片3,3同士の連結部31によって形成されている。また、
固定接点d,eは上記連結部21によって兼用されている。
可動接点f,gはばね性を有する可動接片４、４の先端部
に形成されており、これらの可動接片4,4は一枚の金属
板にスリット41を形成することにより個別に反返り変位
するように作られており、それらの可動接片4,4にはア
クチュエータとしての突出片42,42がそれぞれ設けられ
ている。そして、終端抵抗Ｒの端子R1,R2がそれぞれ上
記可動接片4,4の根元部分に形成された挾持片43と信号
授受用の片側の接片1,1の一体に形成された挾持片12と
によって挾持されるようになっている。In these figures, 1 and 2 are contact pieces for transmitting and receiving signals, 3 is a contact piece for grounding, and each of these contact pieces 1, 2, and 3 is formed by bending a metal plate, that is, bending it. Is made. Then, at the tip of each contact piece 1, 2, 3 the contact points a, b, c
Is formed, the short-circuit path A between the contacts a and a, the short-circuit path B between the contacts b and b, and the short-circuit path C between the contacts c and c are respectively the connecting portion 11 of the contact pieces 1 and 1, the connection It is formed by a connecting portion 21 between the pieces 2 and 2 and a connecting portion 31 between the contact pieces 3 and 3. Also,
The fixed contacts d and e are also used by the connecting portion 21.
The movable contacts f and g are formed at the tips of the movable contact pieces 4 and 4 having a spring property, and these movable contact pieces 4 and 4 are individually formed by forming a slit 41 on a single metal plate. The movable contact pieces 4, 4 are formed so as to be displaced back, and projecting pieces 42, 42 as actuators are provided on the movable contact pieces 4, 4, respectively. The terminals R1 and R2 of the terminating resistor R are integrally formed with the holding piece 43 formed at the base of the movable contact pieces 4 and 4 and the contact piece 1 on one side for signal transmission and reception 12. It is supposed to be held by and.

ボディ５は上下一対のプラグ挿入部51,51を一体に有し
ており、それぞれのプラグ挿入部51,51に信号授受用接
片1,2やアース用接片３を保持するための突出部52が設
けられている。そして、上記各要素をボディ５に組み込
んだ状態では、第６図および第７図のように、それぞれ
のプラグ挿入部51,51の突出部52にそれに対応する信号
授受用接片1,2やアース用接片３が保持されると共に、
プラグ挿入部51,51の背壁53,53に形成された開口54,54
に可動接片4,4に設けられた突出片42,42が挿入され、こ
の突出片42,42がプラグ挿入路にその後部から突き出
す。なお、６はボディ５のプラグ挿入部51,51に組み込
まれる短絡片であり、この短絡片６はプラグ挿入部51,5
1に挿入されてきたプラグＰのボディに接触し、そのボ
ディに帯電している電荷をアース用接片3,3に逃がす役
割を持っている。The body 5 integrally has a pair of upper and lower plug insertion portions 51, 51, and projecting portions for holding the signal transmission / reception contact pieces 1, 2 and the ground contact piece 3 in the respective plug insertion portions 51, 51. 52 are provided. Then, in the state where the above-mentioned elements are incorporated in the body 5, as shown in FIGS. 6 and 7, the protrusions 52 of the respective plug insertion portions 51, 51 are connected to the corresponding signal transmission / reception contact pieces 1, 2 or. While holding the earth contact piece 3,
Openings 54, 54 formed in the back walls 53, 53 of the plug insertion portions 51, 51
The protruding pieces 42, 42 provided on the movable contact pieces 4, 4 are inserted into the plugs, and the protruding pieces 42, 42 are projected from the rear portion into the plug insertion path. In addition, 6 is a short-circuit piece incorporated in the plug insertion parts 51, 51 of the body 5, and this short-circuit piece 6 is the plug insertion parts 51, 5
It has a role of coming into contact with the body of the plug P inserted in 1 and allowing the electric charge charged in the body to escape to the earth contact pieces 3, 3.

以上説明した従来のコネクタにおいて、第７図に矢符で
示したようにプラグＰが片側（上側）のプラグ挿入部51
に挿入されてくると、プラグ挿入部51にその後部から突
き出ている突出片42がプラグＰの先端面P1で押されて後
退し、それに伴って同図の仮想線で示すようにその突出
片42を具備している可動接片４が後方に変位して可動接
点ｆが固定接点ｄつまり連結部21から離れる。同様に、
プラグＰが他側（下側）のプラグ挿入部51に差し込まれ
てくると、プラグＰの先端面P1で押された突出片42と共
にその突出片42を具備している可動接片４が後方に変位
して可動接点ｇが固定接点ｅつまり連結部21から離れ
る。そして、両方の可動接点f,gがそれらに対応する固
定接点d,eから離れると、信号授受用の接点ａとｂとの
短絡が無くなり、プラグとコネクタとの間での信号の授
受が可能になる。しかし、いずれかの可動接点と固定接
点とが閉じていると、終端抵抗Ｒを介して信号授受用の
接点ａとｂとが短絡したままになるため、プラグとコネ
クタとの間で信号が授受されない。In the conventional connector described above, the plug P has the plug insertion portion 51 on one side (upper side) as shown by the arrow in FIG.
When the plug is inserted into the plug insertion portion 51, the protruding piece 42 protruding from the rear portion is pushed back by the tip surface P1 of the plug P, and as a result, as shown by the phantom line in FIG. The movable contact piece 4 provided with 42 is displaced rearward, and the movable contact f is separated from the fixed contact d, that is, the connecting portion 21. Similarly,
When the plug P is inserted into the plug insertion portion 51 on the other side (lower side), the movable contact piece 4 equipped with the protruding piece 42 pushed by the front end surface P1 of the plug P and the movable contact piece 4 rearward. And the movable contact g is separated from the fixed contact e, that is, the connecting portion 21. When both movable contacts f and g are separated from their corresponding fixed contacts d and e, there is no short circuit between the contact points a and b for signal transfer, and signal transfer between the plug and connector is possible. become. However, when any of the movable contacts and the fixed contacts are closed, the signal transfer contacts a and b remain short-circuited via the terminating resistor R, so that a signal is transferred between the plug and the connector. Not done.

〔考案が解決しようとする課題〕[Problems to be solved by the device]

従来のコネクタにおいて、プラグ挿入部51へのプラグ挿
入に伴って開きプラグ未挿入状態では閉じる接点切換機
構、すなわち固定接点（連結部21）d,eと可動接片4,4と
可動接点f,gとアクチュエータとしての突出片42,42とに
よって構成される機構は、プラグ挿入部51に挿入された
プラグＰの先端面P1で突出片42がプラグ挿入方向に押さ
れたときに開くようになっているため、可動接片４の曲
がり癖に伴う接点圧の減衰によってプラグ未挿入状態で
の固定接点d,eと可動接点f,gとの接触信頼性が低下しや
すくなるという問題点があった。この問題を改善するた
めに可動接片42のばね力を大きく設定しておくと、プラ
グＰが挿入されているときには突出片42の復元方向のば
ね力で常時プラグＰがプラグ挿入部51からの抜出し方向
に常に強く付勢された状態となり、コネクタによるプラ
グ保持力がそれだけ減衰し、プラグＰが抜け出しやすく
なるのみならず、プラグ挿入時に大きな押込力が必要に
なる。In the conventional connector, a contact switching mechanism that opens when the plug is inserted into the plug insertion part 51 and closes when the plug is not inserted, that is, fixed contacts (coupling part 21) d, e, movable contact pieces 4, 4, and movable contacts f, The mechanism configured by g and the projecting pieces 42, 42 as actuators is designed to open when the projecting piece 42 is pushed in the plug insertion direction by the tip end surface P1 of the plug P inserted in the plug insertion part 51. Therefore, there is a problem in that the contact reliability between the fixed contacts d and e and the movable contacts f and g when the plug is not inserted is likely to decrease due to the attenuation of the contact pressure due to the bending tendency of the movable contact piece 4. It was If the spring force of the movable contact piece 42 is set to a large value in order to improve this problem, when the plug P is inserted, the spring force in the restoring direction of the projecting piece 42 causes the plug P to always move from the plug insertion portion 51. The plug is constantly biased strongly in the pulling-out direction, the plug holding force by the connector is attenuated to that extent, and not only the plug P is easily pulled out, but also a large pushing force is required when the plug is inserted.

また、同様の理由から、可動接片4,4の変位ストローク
を大きくすることに制約が生じて固定接点d,eと可動接
点f,gとの離間時のクリアランスをそれほど大きくする
ことができず、動作信頼性を向上させにくいという問題
点もあった。Further, for the same reason, there is a restriction on increasing the displacement stroke of the movable contact pieces 4, 4 and the clearance at the time of separating the fixed contacts d, e from the movable contacts f, g cannot be increased so much. However, there is a problem that it is difficult to improve the operation reliability.

本考案は以上の問題に鑑みてなされたもので、上記接点
切換機構の構造を工夫することにより、その接点切換機
構の可動接片のばね力による影響をプラグ挿入動作や挿
入されたプラグに及びにくくし、同時に接点切換機構の
動作信頼性やその接点同士の接触信頼性を改善すること
が可能なコネクタを提供することを目的とする。The present invention has been made in view of the above problems, and by devising the structure of the contact switching mechanism, the influence of the spring force of the movable contact piece of the contact switching mechanism can be applied to the plug insertion operation and the inserted plug. An object of the present invention is to provide a connector that can be made difficult and at the same time improve the operation reliability of the contact switching mechanism and the contact reliability between the contacts.

また、本考案は、一枚の金属板を折り曲げて作った固定
接片や可動接片のボディへの組込み箇所に工夫を講じる
ことによって、コンパクト化を図りやすいコネクタを提
供することを目的とする。Another object of the present invention is to provide a connector that can be easily made compact by devising a place where a fixed contact piece or a movable contact piece made by bending a single metal plate is incorporated into a body. .

〔課題を解決するための手段］ 本考案のコネクタは、ボディに並設された一対のプラグ
挿入部に各別の一対ずつの信号授受用接点が設けられ、
それらのプラグ挿入部の相互間で相対応する信号授受用
接点同士が各別の短絡路により短絡され、これらの短絡
路のうち片側の短絡路に一対の固定接点が並列に介在さ
れ、これらの固定接点のそれぞれに各別に対応する一対
の可動接点と他側の短絡路との間に終端抵抗が直列に介
在されたコネクタにおいて、一対のプラグ挿入部の間で
上記ボディに保持されたコ字形の金属板に具備された相
対する一対の固定接片のそれぞれに一対の上記固定接点
が各別に形成され、金属板を曲成することにより形成さ
れた相対向する一対の山形の可動接片が一対のプラグ挿
入部の間で上記ボディに保持され、それらの可動接片の
頂部が一対のプラグ挿入部にその側部から各別に突き出
されていると共に、それらの可動接片の先端部に一対の
上記可動接点が各別に形成され、一対の可動接片を形成
している上記金属板に設けられた挾持片と上記他側の短
絡路との間に上記終端抵抗が介在されているというもの
である。[Means for Solving the Problems] In the connector of the present invention, a pair of signal transmitting / receiving contacts are provided on a pair of plug insertion portions arranged in parallel on the body,
Corresponding signal transmitting / receiving contacts between the plug insertion portions are short-circuited by different short-circuit paths, and a pair of fixed contacts are arranged in parallel in one of these short-circuit paths. In a connector in which a terminating resistor is interposed in series between a pair of movable contacts respectively corresponding to fixed contacts and a short-circuit path on the other side, a U-shape held by the body between a pair of plug insertion portions. A pair of fixed contacts are separately formed on each of a pair of opposed fixed contact pieces provided on the metal plate, and a pair of opposed mountain-shaped movable contact pieces formed by bending the metal plate are provided. The movable contact piece is held by the body between the pair of plug insertion portions, and the tops of the movable contact pieces are individually protruded from the side portions of the pair of plug insertion portions, and the pair of movable contact pieces are paired with the distal end portions of the movable contact pieces. Each of the above movable contacts To be formed, it is that the termination resistor between the shorting path of the pair of clamping pieces provided on the metal plate forming the movable contact piece and the other side is interposed.

〔作用〕[Action]

本考案のコネクタによると、山形の可動接片の頂部がプ
ラグ挿入部のプラグ挿入路にその側部から突き出ている
ため、プラグ挿入部にプラグを差し込むときには、プラ
グの先端部で山形の可動接片の傾斜部分が押されてその
可動接片がプラグ挿入方向に対して直行方向または交差
方向に変位する。そして、プラグが挿入された状態で
は、可動接片の復元方向のばね力がプラグを側方から押
し付ける方向に作用する。また、可動接点と固定接点と
の離間時のクリアランスは山形の可動接片の頂部の高さ
に応じて定まる。According to the connector of the present invention, the top of the chevron-shaped movable contact piece projects from the side of the plug insertion path of the plug insertion portion, so that when the plug is inserted into the plug insertion portion, the chevron-shaped movable contact piece is inserted at the tip of the plug. The inclined portion of the piece is pushed, and the movable contact piece is displaced in the orthogonal direction or the intersecting direction with respect to the plug insertion direction. Then, in the state in which the plug is inserted, the spring force in the restoring direction of the movable contact piece acts in the direction of pressing the plug from the side. Further, the clearance when the movable contact and the fixed contact are separated is determined according to the height of the top of the chevron-shaped movable contact piece.

また、一対の可動接点が一枚の金属板に形成されてツイ
ン接点化され、同じく一対の固定接点もツイン接点化さ
れると同時に、一対の可動接片と終端抵抗の端子に対応
する挾持片が一体化されるため、コネクタがコンパクト
になり、かつそれを組み立てやすい。Also, a pair of movable contacts are formed on a single metal plate to form twin contacts, and a pair of fixed contacts are also formed to twin contacts, and at the same time, a pair of movable contact pieces and a holding piece corresponding to the terminal of the terminating resistor. Since it is integrated, the connector becomes compact and it is easy to assemble it.

さらに、本考案のコネクタによると、一対の可動接片を
形成している金属板や一対の固定接片を形成している金
属板が、一対のプラグ挿入部の間でボディに保持されて
いるので、部品点数が少なくなり、しかも当該コネクタ
のコンパクト化を達成しやすい。すなわち、一対の可動
接片や一対の固定接片が別々の金属板で作られ、しかも
それらがボディにおける一対のプラグ挿入部の外側箇所
で保持されていると、部品点数が増えて当該コネクタの
コンパクト化を達成しにくくなる。Further, according to the connector of the present invention, the metal plate forming the pair of movable contact pieces and the metal plate forming the pair of fixed contact pieces are held by the body between the pair of plug insertion portions. Therefore, the number of parts is reduced, and the connector can be easily made compact. That is, if the pair of movable contact pieces and the pair of fixed contact pieces are made of different metal plates and are held at the outside of the pair of plug insertion portions in the body, the number of parts increases and the connector It becomes difficult to achieve compactness.

〔実施例〕〔Example〕

第１図は本考案の実施例によるコネクタの分解斜視図、
第２図は同コネクタの一部を破断した正面図、第３図は
同コネクタの縦断側面図である。FIG. 1 is an exploded perspective view of a connector according to an embodiment of the present invention,
FIG. 2 is a partially cutaway front view of the same connector, and FIG. 3 is a vertical side view of the same connector.

ボディ５は上下一対のプラグ挿入部51,51を一体に有す
る絶縁体によって形成されており、各プラグ挿入部51に
設けられた突出部52には信号授受用の接片1,2とアース
用の接片３が保持される。また、突出部52にはプラグ側
の接片（不図示）が差し込まれる開口52a,52b,52cが形
成されており、プラグ挿入部51,51にプラグＰを挿入す
ることによりそのプラグＰの接片が各開口52a,52b,52c
に差し込まれて各接片1,2,3の先端部分に形成されてい
る接点a,b,cに挾圧されて接続されるようになってい
る。なお、アース用の接片３の先端部分に短絡片６が折
曲形成されており、この短絡片６がプラグ挿入部51に挿
入されてきたプラグのボディに接触し、そのボディに帯
電している電荷をアース用接片3,3に逃がすようになっ
ている。The body 5 is formed of an insulator integrally including a pair of upper and lower plug insertion portions 51, 51, and the projecting portion 52 provided on each plug insertion portion 51 has contact pieces 1 and 2 for signal transmission and grounding. The contact piece 3 is held. Further, openings 52a, 52b, 52c into which plug-side contact pieces (not shown) are inserted are formed in the projecting portion 52, and by inserting the plug P into the plug insertion portions 51, 51, the connection of the plug P is made. One opening for each opening 52a, 52b, 52c
The contact points a, b and c are inserted into the contact points 1, 2 and 3 and are connected to the contact points a, b and c, respectively. A short-circuit piece 6 is bent and formed at the tip of the grounding contact piece 3, and the short-circuit piece 6 comes into contact with the body of the plug inserted into the plug insertion portion 51, and the body is electrically charged. It is designed so that the electric charges that are present are released to the earth contact pieces 3, 3.

第１図において、７は接点切換機構で、一対の山形の可
動接片71,71と、一対の可動接片71,71に各別に対応する
一対の固定接片72,72と、終端抵抗Ｒの端子R1を挾持す
る挾持片73とを有する。一対の可動接片71,71は一枚の
金属板を上下対称形状に曲成することにより形成されて
おり、それらの先端部にそれぞれ可動接点f,gが形成さ
れている。これに対し、一対の固定接片72,72は一枚の
金属板をコ字形に曲げることによって上下対称形状に曲
成されており、この固定接片72,72の所定箇所に固定接
点d,eが形成されている。また、可動接片71,71を具備す
る金属板に延出された延設部74に上記挾持片73が設けら
れている。この挾持片73は上記延設部74にＪ字形の折曲
片73a,73aを上下対称形状に曲成することにより形成さ
れており、それらの折曲片73a,73aの間に終端抵抗Ｒの
端子R1を差し込むだけで、その端子R1が折曲片73a,73a
により挾圧保持されて確実な接続がなされるようになっ
ている。In FIG. 1, a contact switching mechanism 7 includes a pair of chevron-shaped movable contact pieces 71, 71, a pair of fixed contact pieces 72, 72 respectively corresponding to the pair of movable contact pieces 71, 71, and a terminating resistance R. And a holding piece 73 for holding the terminal R1. The pair of movable contact pieces 71, 71 is formed by bending a single metal plate in a vertically symmetrical shape, and movable contacts f, g are formed at the tips thereof. On the other hand, the pair of fixed contact pieces 72, 72 are bent in a vertically symmetrical shape by bending a single metal plate into a U-shape, and fixed contact points d, 72 are fixed at predetermined positions of the fixed contact pieces 72, 72. e is formed. Further, the holding piece 73 is provided on the extension portion 74 extended to the metal plate including the movable contact pieces 71, 71. The holding piece 73 is formed by bending the J-shaped bending pieces 73a, 73a in the extending portion 74 in a vertically symmetrical shape, and the terminating resistance R is provided between the bending pieces 73a, 73a. Simply insert the terminal R1 and the terminal R1 will bend the bent pieces 73a, 73a.
With this, the pressure is retained and a reliable connection is made.

可動接片71,71は、それを具備する金属板に形成された
突片74を第３図のように一対のプラグ挿入部51,51の間
のボディ５の肉厚部分に圧入することによりボディ５に
保持されるのであって、そのように保持された山形の可
動接片71,71はその頂部71a,71aがプラグ挿入部51,51に
形成された開口51a,51aを通してプラグ挿入路にその側
部から突出されている。また、固定接片72,72は、それ
を具備するコ字形の金属板を一対のプラグ挿入部51,51
の間のボディ５の肉厚部分に圧入することによりボディ
５に保持され、そのように保持された固定接片72,72の
固定接点d,eが上記可動接点f,gに対応される。The movable contact pieces 71, 71 are formed by press-fitting the projecting piece 74 formed on the metal plate having the movable contact pieces 71, into the thick portion of the body 5 between the pair of plug insertion portions 51, 51 as shown in FIG. The chevron-shaped movable contact pieces 71, 71 held by the body 5 are connected to the plug insertion path through the openings 51a, 51a formed in the plug insertion portions 51, 51 at their tops 71a, 71a. It projects from its side. In addition, the fixed contact pieces 72, 72 include a pair of U-shaped metal plates provided with the fixed contact pieces 72, 72 as a pair of plug insertion portions 51, 51.
The fixed contacts d, e of the fixed contact pieces 72, 72 held by the body 5 by being press-fitted into the thick portion of the body 5 between them correspond to the movable contacts f, g.

８はプリント配線基板で、これには第４図で説明した信
号授受用の接点a,a同士の短絡路Ａを形成するパターン
と、接点b,b同士の短絡路Ｂを形成するパターンと、ア
ース用の接点c,c同士の短絡路Ｃを形成するパターンが
形成されており、それぞれのパターンには上記接片1,2
の端子部1a,2aが差し込まれる孔部1a′,2a′や、接片３
の端子部3aが差し込まれる孔部3a′、一対の固定接片7
2,72の端子部72aが差し込まれる切欠部72a′、終端抵抗
Ｒの端子R2が差し込まれる孔部R2′が形成されている。
そして、プリント配線基板８をボディ１の背面に嵌め込
み、上記孔部1a′,2a′,3a′や切欠部72a′や孔部R2′
に上記端子部1a,2aが3a,72aや終端抵抗Ｒの端子R2を差
し込んでそれらを対応するパターンに半田付けすると、
第４図で説明した回路が形成される。Reference numeral 8 denotes a printed wiring board on which a pattern for forming a short-circuit path A between the contact points a and a for signal transmission and reception and a pattern for forming a short-circuit path B between the contact points b and b described in FIG. A pattern for forming a short circuit C between the ground contacts c, c is formed, and each of the patterns has the contact piece 1, 2
Holes 1a ', 2a' into which the terminal portions 1a, 2a of
Hole 3a 'into which the terminal portion 3a of
A cutout portion 72a 'into which the terminal portions 72a of the 2,72 are inserted and a hole portion R2' into which the terminal R2 of the terminating resistor R is inserted are formed.
Then, the printed wiring board 8 is fitted into the back surface of the body 1 to form the holes 1a ', 2a', 3a ', the notches 72a' and the holes R2 '.
When the terminal portions 1a and 2a are inserted into 3a and 72a and the terminal R2 of the terminating resistor R and soldered to the corresponding patterns,
The circuit described in FIG. 4 is formed.

以上説明した構成のコネクタにおいて、第３図に矢符で
示したようにプラグＰが片側（上側）のプラグ挿入部51
に挿入されてくると、プラグ挿入路にその側部（下側
部）から突き出ている山形の可動接片71の傾斜部71bが
プラグＰの先端部に当たった後、その先端部で押されて
可動接片71のばね力に抗して下方に後退変位する。続い
てプラグＰが同図に仮想線で示したように完全に挿入さ
れると、可動接片71の頂部71aがプラグＰの下面P2に押
し付けられ、可動接点ｆが固定接点ｄから離れる。同様
に、プラグＰが他側（下側）のプラグ挿入部51に挿入さ
れてくると、プラグ挿入路にその側部（上側部）から突
き出ている山形の可動接片71の傾斜部71bがプラグＰの
先端部に当たった後、その先端部で押されて可動接片71
のばね力に抗して上方に後退変位する。続いてプラグＰ
が同図に仮想線で示したように完全に挿入されると、可
動接片71の頂部71aがプラグＰの上面P3に押し付けら
れ、可動接点ｇが固定接点ｅから離れる。そして、第４
図から明らかなように両方の可動接点f,gがそれらに対
応する固定接点d,eから離れると、信号授受用の接点ａ
とｂとの短絡が無くなり、プラグとコネクタとの間での
信号の授受が可能になる。しかし、いずれかの可動接点
と固定接点とが閉じていると、終端抵抗Ｒを介して信号
授受用の接点ａとｂとが短絡したままになるため、プラ
グとコネクタとの間で信号が授受されない。In the connector having the above-described structure, the plug P has the plug insertion portion 51 on one side (upper side) as shown by the arrow in FIG.
, The inclined portion 71b of the chevron-shaped movable contact piece 71 protruding from the side (lower side) of the plug insertion path hits the tip of the plug P and is then pushed by the tip. And is displaced backwards against the spring force of the movable contact piece 71. Then, when the plug P is completely inserted as shown by the phantom line in the figure, the top portion 71a of the movable contact piece 71 is pressed against the lower surface P2 of the plug P, and the movable contact f is separated from the fixed contact d. Similarly, when the plug P is inserted into the plug inserting portion 51 on the other side (lower side), the inclined portion 71b of the chevron-shaped movable contact piece 71 projecting from the side portion (upper side) into the plug inserting path. After hitting the tip of the plug P, the movable contact piece 71 is pushed by the tip.
It retreats upwards against the spring force of. Then plug P
Is completely inserted as indicated by a phantom line in the figure, the top portion 71a of the movable contact piece 71 is pressed against the upper surface P3 of the plug P, and the movable contact g is separated from the fixed contact e. And the fourth
As is apparent from the figure, when both movable contacts f and g are separated from their corresponding fixed contacts d and e, the contact a for signal transmission / reception a
The short circuit between b and b is eliminated, and signals can be exchanged between the plug and the connector. However, when any of the movable contacts and the fixed contacts are closed, the signal transfer contacts a and b remain short-circuited via the terminating resistor R, so that a signal is transferred between the plug and the connector. Not done.

このコネクタのように、山形の可動接片71の頂部71aが
プラグ挿入部51のプラグ挿入路にその側部から突き出て
いると、プラグ挿入部に差し込まれたプラグＰの先端部
で山形の可動接片71の傾斜部71aが押されてその可動接
片71がプラグ挿入方向に対して直行方向または交差方向
に変位するため、プラグＰの差し込みに要する力が従来
例に比べて小さくて済む。そのため、可動接片71のばね
力を大きくして固定接点d,eと可動接点f,gとの接触信頼
性を高めても、プラグＰを差し込みにくくなることがな
い。また、プラグＰを完全に挿入した状態では、可動接
片71の復元方向のばね力がプラグＰを側方から押し付け
る方向に作用するため、可動接片71のばね力によってプ
ラグＰが抜出しやすくなることはなく、却って可動接片
71のばね力がプラグＰを保持する力として役立つことに
なり、プラグＰがプラグ挿入部51から容易に抜け出すこ
とが防止される。Like this connector, when the top portion 71a of the chevron-shaped movable contact piece 71 projects from the side portion of the plug insertion path of the plug insertion portion 51, the tip of the plug P inserted into the plug insertion portion moves in a chevron shape. Since the inclined portion 71a of the contact piece 71 is pushed and the movable contact piece 71 is displaced in the orthogonal direction or the intersecting direction with respect to the plug insertion direction, the force required to insert the plug P can be smaller than that in the conventional example. Therefore, even if the spring force of the movable contact piece 71 is increased to improve the contact reliability between the fixed contacts d and e and the movable contacts f and g, it is not difficult to insert the plug P. Further, when the plug P is completely inserted, the spring force of the restoring direction of the movable contact piece 71 acts in the direction of pressing the plug P from the side, so that the spring force of the movable contact piece 71 makes it easier to pull out the plug P. Nothing, rather moveable contact piece
The spring force of 71 serves as a force for holding the plug P, which prevents the plug P from easily coming out of the plug insertion portion 51.

さらに、固定接点d,eと可動接点f,gとの離間時のクリア
ランスは山形の可動接片71の頂部71aの高さを高くする
ことによって容易に増大させることができるため、そう
することによって接点開閉機構８の作動信頼性が向上す
る。Further, the clearance at the time of separating the fixed contacts d, e from the movable contacts f, g can be easily increased by increasing the height of the top 71a of the chevron-shaped movable contact piece 71. The operation reliability of the contact opening / closing mechanism 8 is improved.

第１図〜第３図では一対の可動接片71,71や一対の固定
接片72,72を上下対称形状に配置してあるが、これらは
横に並べて左右対称形状に配置してもよく、その場合に
はボディ５のプラグ挿入部51,51を横に並べて形成す
る。In FIGS. 1 to 3, the pair of movable contact pieces 71, 71 and the pair of fixed contact pieces 72, 72 are arranged in a vertically symmetrical shape, but they may be arranged side by side and arranged in a symmetrical shape. In that case, the plug insertion portions 51, 51 of the body 5 are formed side by side.

〔考案の効果〕[Effect of device]

本考案によれば、接点切換機構の可動接片が山形であっ
て、しかもその頂部がプラグ挿入路にその側部から突き
出した状態になっているため、可動接片のばね力でプラ
グの保持力が増大するという効果があるのみならず、可
動接片のばね力を大きく設定して可動接点と固定接点と
の接触信頼性を高めても、プラグ挿入時の押込力がそれ
ほど大きくならないという効果がある。また、山形の可
動接片の頂部の高さを高くして、プラグ挿入路への可動
接片の頂部の突出幅を大きくすることにより容易に接点
離間時のクリアランスを大きくすることができるという
利点もある。According to the present invention, since the movable contact piece of the contact switching mechanism has a chevron shape, and the top portion thereof projects into the plug insertion path from its side portion, the spring force of the movable contact piece holds the plug. Not only has the effect of increasing the force, but the effect that the pushing force at the time of plug insertion does not become so great even if the spring force of the movable contact piece is set large to improve the contact reliability between the movable contact and the fixed contact. There is. Further, by increasing the height of the top of the chevron-shaped movable contact piece to increase the protrusion width of the top of the movable contact piece into the plug insertion path, it is possible to easily increase the clearance when the contacts are separated. There is also.

また、本考案によれば、一対の可動接片や一対の固定接
片がそれぞれ一枚の金属板で作られているために部品点
数が少なくなり、それだけ組立コストが安くつく。その
上、一対の可動接片や一対の固定接片を形成している金
属板が一対のプラグ挿入部の間でボディに保持されてい
るので、当該コネクタをコンパクトにして機器類への実
装スペースを狭くすることが容易に可能になる。Further, according to the present invention, since the pair of movable contact pieces and the pair of fixed contact pieces are each made of one metal plate, the number of parts is reduced, and the assembling cost is reduced accordingly. Moreover, since the metal plates forming the pair of movable contact pieces and the pair of fixed contact pieces are held by the body between the pair of plug insertion portions, the connector can be made compact and the mounting space for devices can be reduced. Can be easily narrowed.

【図面の簡単な説明】[Brief description of drawings]

第１図は本考案の実施例によるコネクタの分解斜視図、
第２図は同コネクタの一部を破断した正面図、第３図は
同コネクタの縦断側面図、第４図はコネクタの回路図、
第５図は従来のコネクタの分解斜視図、第６図は従来の
コネクタの背面図で、第７図は従来のコネクタを断面図
である。 1,2…信号授受用接片、３…アース用接片、８…接点切
換機構、51…プラグ挿入部、71…可動接片、71a…可動
接片の頂部、72…固定接片、73…挾持片、Ｒ…終端抵
抗、R1,R2…終端抵抗の端子、Ａ…信号授受用接片（接
点）同士の短絡路。FIG. 1 is an exploded perspective view of a connector according to an embodiment of the present invention,
FIG. 2 is a front view in which a part of the connector is cut away, FIG. 3 is a vertical sectional side view of the connector, and FIG. 4 is a circuit diagram of the connector.
FIG. 5 is an exploded perspective view of a conventional connector, FIG. 6 is a rear view of the conventional connector, and FIG. 7 is a sectional view of the conventional connector. 1, 2 ... Signal transmitting / receiving contact piece, 3 ... Grounding contact piece, 8 ... Contact switching mechanism, 51 ... Plug insertion portion, 71 ... Movable contact piece, 71a ... Top of movable contact piece, 72 ... Fixed contact piece, 73 ... Clamping piece, R ... Terminal resistance, R1, R2 ... Terminal resistance terminals, A ... Short-circuit path between signal transfer contact pieces (contact points).

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】ボディ（５）に並設された一対のプラグ挿
入部（51,51）に各別に一対ずつの信号授受用接点（a,
a）（b,b）が設けられ、それらのプラグ挿入部（51,5
1）の相互間で相対応する信号授受用接点（a,a）（b,
b）同士が各別の短絡路（Ａ）（Ｂ）により短絡され、
これらの短絡路（A,B）のうち片側の短絡路（Ｂ）に一
対の固定接点（d,e）が並列に介在され、これらの固定
接点（d,e）のそれぞれに各別に対応する一対の可動接
点（f,g）と他側の短絡路（Ａ）との間に終端抵抗
（Ｒ）が直列に介在されたコネクタにおいて、 一対のプラグ挿入部（51,51）の間で上記ボディ（５）
に保持されたコ字形の金属板に具備された相対する一対
の固定接片（72,72）のそれぞれに一対の上記固定接点
（d,e）が各別に形成され、 金属板を曲成することにより形成された相対向する一対
の山形の可動接片（71,71）が一対のプラグ挿入部（51,
51）の間で上記ボディ（５）に保持され、それらの可動
接片（71,71）の頂部（71a,71a）が一対のプラグ挿入部
（51,51）にその側部から各別に突き出されていると共
に、それらの可動接片（71,71）の先端部に一対の上記
可動接点（f,g）が各別に形成され、 一対の可動接片（71,71）を形成している上記金属板に
設けられた挾持片（73）と上記他側の短絡路（Ａ）との
間に上記終端抵抗（Ｒ）が介在されていることを特徴と
するコネクタ。1. A pair of signal transmission / reception contacts (a, 5) for each pair of plug insertion portions (51, 51) arranged side by side on a body (5).
a) (b, b) are provided and their plug insertion parts (51, 5)
1) Corresponding signal transfer contacts (a, a) (b,
b) short-circuiting each other by different short-circuit paths (A) and (B),
A pair of fixed contacts (d, e) are interposed in parallel with one of the short-circuit paths (A, B) on one side of the short-circuit path (B) and correspond to each of the fixed contacts (d, e). In a connector in which a terminating resistor (R) is interposed in series between a pair of movable contacts (f, g) and a short-circuit path (A) on the other side, the above is provided between the pair of plug insertion portions (51, 51). Body (5)
A pair of fixed contacts (d, e) are separately formed on each of a pair of fixed contact pieces (72, 72) facing each other provided on the U-shaped metal plate held by the above to bend the metal plate. The pair of chevron-shaped movable contact pieces (71, 71) which are formed by the above-mentioned structure are formed into a pair of plug insertion parts (51, 71).
51) are held by the body (5) between them, and the tops (71a, 71a) of the movable contact pieces (71, 71) respectively project from the side parts to the pair of plug insertion parts (51, 51). In addition, the pair of movable contacts (f, g) are separately formed at the tips of the movable contact pieces (71, 71) to form a pair of movable contact pieces (71, 71). A connector in which the terminating resistor (R) is interposed between a holding piece (73) provided on the metal plate and the short-circuit path (A) on the other side.