JPH0353434Y2

JPH0353434Y2 -

Info

Publication number: JPH0353434Y2
Application number: JP16453087U
Authority: JP
Priority date: 1987-10-29
Filing date: 1987-10-29
Publication date: 1991-11-21
Also published as: JPH0170277U

Description

【考案の詳細な説明】考案の目的〔産業上の利用分野〕本考案は、端子の二重係止用スペーサを備える
コネクタの改良に関する。[Detailed Description of the Invention] Purpose of the Invention [Field of Industrial Application] The present invention relates to an improvement of a connector provided with a spacer for double locking of terminals.

[Conventional technology]

コネクタにおける端子の後抜けを防止する係止
手段には、いわゆる端子ランス方式とケースラン
ス方式の二種がある。前者は端子の基板部に切起
し片を設けて収容室内壁の溝に係合させ、後者は
収容室内壁から一体に可撓性係止腕を設け、これ
を端子の肩部または基板部に設けた係止孔に係合
させるものである。 There are two types of locking means for preventing a terminal from coming off in a connector: a terminal lance type and a case lance type. The former has a cut-and-raised piece on the base of the terminal that engages with a groove on the inner wall of the housing chamber, while the latter has a flexible locking arm integrated from the inner wall of the housing chamber, which is attached to the shoulder of the terminal or the base of the housing. It is made to engage with the locking hole provided in the.

しかし、切起し片の立上りが不十分な場合、ま
た雌、雄コネクタの抜き差しを繰り返すことによ
り切起し片や係止腕が損傷した場合には、端子の
接触不良や後抜けが起こる。 However, if the cut-and-raised piece does not stand up sufficiently, or if the cut-and-raised piece or the locking arm are damaged due to repeated insertion and removal of female and male connectors, poor contact or back-off of the terminal may occur.

そこで、第４，５図に示す如く、端子ａとコネ
クタハウジングｂ内の収容室ｃとの間の係止手段
ｄ，ｅとは別に、収容室の端子挿入側から端子係
止部ｇとハウジング係止部ｈを備えるスペーサｆ
を差し込む、端子の二重係止手段が考案された
（実開昭58−44776号公報）。 Therefore, as shown in FIGS. 4 and 5, in addition to the locking means d and e between the terminal a and the accommodation chamber c in the connector housing b, the terminal locking part g and the housing are connected from the terminal insertion side of the accommodation chamber. Spacer f with locking part h
A double locking means for the terminal was devised (Utility Model Application Publication No. 58-44776).

[Problem that the invention attempts to solve]

しかし、従来の端子の二重係止用スペーサｆ
は、第５図にみるように、端子係止部の突起g′の
端面が端子ａの肩部a′に当接するかまたはその後
方にあつて、端子ａの後抜けに対するストツパ作
用が主体であつた。 However, the double locking spacer f of the conventional terminal
As shown in Fig. 5, the end surface of the protrusion g' of the terminal locking part is in contact with or behind the shoulder a' of the terminal a, and the main action is to stop the terminal a from slipping out later. It was hot.

したがつて、端子ａには横方向のガタツキ（端
子の軸ずれ）が生じて不安定であり、コネクタ結
合の際に相手端子と突き当たつたり、変形を起
し、円滑な接続ができないなどの問題があつた。 Therefore, terminal a is unstable due to lateral wobbling (misalignment of the axis of the terminal), and when the connector is connected, it may collide with the mating terminal or be deformed, making it impossible to make a smooth connection. There was a problem.

本考案の目的は、かかる問題点を解決し、端子
のガタツキをなくし、相手コネクタと円滑に嵌
合、接続できるコネクタを提供するにある。 The purpose of the present invention is to solve these problems and provide a connector that eliminates looseness of the terminals and can be smoothly fitted and connected to a mating connector.

考案の構成〔問題点を解決するための手段〕図面を参照して説明すると、本考案のコネクタ
は、第１図ないし第３図に示すように、コネクタ
ハウジング１内の端子収容室２と該収容室に挿着
される端子３との間に係止手段２ａ，３ｃを設け
ると共に、該収容室の端子挿入側からハウジング
係止部と端子係止部を備えるスペーサ４を差し込
んで端子の後抜けを二重に阻止するコネクタにお
いて、前記スペーサ４は門形の枠体４ａの両側壁
に前記端子収容室２の内壁と係合する係止爪４ｂ
を設けると共に、該両側壁から前方にのびる一対
の係止腕４ｃを突設し、該係止腕の先端部には前
記端子３の肩部と係合する切欠溝４ｄを設けてな
ることを特徴とする。Structure of the Invention [Means for Solving Problems] To explain with reference to the drawings, the connector of the present invention, as shown in FIGS. 1 to 3, has a terminal receiving chamber 2 in a connector housing 1 and Locking means 2a and 3c are provided between the terminal 3 to be inserted into the housing chamber, and a spacer 4 having a housing locking part and a terminal locking part is inserted from the terminal insertion side of the housing chamber, and the spacer 4 is inserted behind the terminal. In the connector that double prevents the connector from coming off, the spacer 4 has locking claws 4b on both side walls of the gate-shaped frame 4a that engage with the inner wall of the terminal accommodating chamber 2.
In addition, a pair of locking arms 4c are provided projecting forward from the both side walls, and a cutout groove 4d is provided at the tip of the locking arm to engage with the shoulder portion of the terminal 3. Features.

上記構成において、端子３は既知の構造をもつ
雌型端子であり、基板部３ａの一方に一対の弾性
挾持腕３ｂよりなる電気接触部３₁が、他方に電
線接続部３₂が連成され、基板部３ａには下方に
向けて切起し片３ｃが形成されている。そして、
この切起し片３ｃと端子収容室２の底壁に設けら
れた溝２ａが、該収容室と端子間の係止手段（２
ａ，３ｃ）を構成している。 In the above configuration, the terminal 3 is a female terminal with a known structure, and an electric contact portion 3 ₁ consisting of a pair of elastic clamping arms 3 b is coupled to one side of the substrate portion 3 a, and an electric wire connection portion 3 ₂ is coupled to the other side. A cut-and-raised piece 3c is formed in the substrate portion 3a in a downward direction. and,
This cut-and-raised piece 3c and the groove 2a provided in the bottom wall of the terminal storage chamber 2 form a locking means (2) between the storage chamber and the terminal.
a, 3c).

スペーサ４は、前述したように門形の枠体４ａ
とその両側壁から前方にのびる一対の係止腕４ｃ
を有して、各端子収容室２に個別に挿着される。
また、両側壁の係止爪４ｂは端子収容室２の内壁
に設けられる突起または凹部に係合する。そし
て、係止爪４ｂと係止腕４ｃがそれぞれスペーサ
４のハウジング係止部と端子係止部を構成してい
る。 As mentioned above, the spacer 4 has a gate-shaped frame 4a.
and a pair of locking arms 4c extending forward from both side walls.
, and are individually inserted into each terminal accommodating chamber 2.
Furthermore, the locking claws 4b on both side walls engage with protrusions or recesses provided on the inner wall of the terminal accommodating chamber 2. The locking claw 4b and the locking arm 4c constitute a housing locking portion and a terminal locking portion of the spacer 4, respectively.

[Effect]

第２図に示すように、端子収容室２に挿入した
端子３を切起し片３ｃと溝２ａとの係合により一
次係止する。次いでスペーサ４を差し込んでその
係止腕４ｃの先端面を端子３の電気接触部３₁に
おける肩部３ｄに係合させ、二次係止を行う。 As shown in FIG. 2, the terminal 3 inserted into the terminal accommodating chamber 2 is primarily locked by engagement between the cut and raised piece 3c and the groove 2a. Next, the spacer 4 is inserted and the distal end surface of the locking arm 4c is engaged with the shoulder portion 3d of the electrical contact portion ₃₁ of the terminal 3, thereby performing secondary locking.

以上は従前と同様の作用であるが、本考案のコ
ネクタでは、係止腕４ｃに設けた切欠溝４ｄが第
３図のように端子３の肩部３ｄに係合し、端子の
両側を固定するから、端子の横方向のガタツキが
なく安定化する。 The above is the same function as the conventional connector, but in the connector of the present invention, the notch groove 4d provided in the locking arm 4c engages with the shoulder portion 3d of the terminal 3 as shown in Fig. 3, fixing both sides of the terminal. This eliminates horizontal wobbling of the terminal and stabilizes it.

また、端子３の端子収容室２への挿着が不完全
な場合には、前記切欠溝４ｄと肩部３ｄとの係合
により、端子３は前方に押し込まれ、不完全挿入
を未然に防止できる。 Furthermore, if the terminal 3 is incompletely inserted into the terminal housing chamber 2, the terminal 3 is pushed forward due to the engagement between the notch groove 4d and the shoulder portion 3d, thereby preventing incomplete insertion. can.

以上はスペーサ４によりいわゆる眼鏡型の雌端
子を二重係止する例について説明したが、タブ状
の雄端子の場合には、該タブの両側に前記肩部３
ｄと同様の構造をもつ立上り片（図示せず）を設
けることにより、二重係止と共にガタツキを防止
できる。 The above has described an example in which a so-called spectacle-shaped female terminal is double-locked by the spacer 4. However, in the case of a tab-shaped male terminal, the shoulder portions 3 are attached on both sides of the tab.
By providing a rising piece (not shown) having the same structure as d, double locking can be achieved and rattling can be prevented.

考案の効果本考案は以上説明したようになるから、コネク
タにおける端子の横方向のガタツキを防止し、相
手端子との軸ずれによる突き当たりや変形がなく
なり、コネクタの円滑な嵌合、接続ができる。Effects of the invention As described above, the present invention prevents the terminals in the connector from wobbling in the lateral direction, eliminates abutment and deformation due to axial misalignment with the mating terminal, and enables smooth fitting and connection of the connector.

[Brief explanation of the drawing]

第１図は本考案のコネクタの一実施例を示す分
解斜視図、第２図は同上の組立状態の縦断面図、
第３図は第２図の−線断面図、第４図は従来
のコネクタの分解斜視図、第５図は同上の組立状
態の縦断面図である。１……コネクタハウジング、２……端子収容
室、３……端子、４……スペーサ、２ａ，３ｃ…
…（係止手段としての）溝と切起し片、４ｂ……
（ハウジング係止部としての）係止爪、４ｃ……
（端子係止部としての）係止腕、４ｄ……切欠溝。 Fig. 1 is an exploded perspective view showing one embodiment of the connector of the present invention, Fig. 2 is a vertical sectional view of the same in an assembled state,
3 is a sectional view taken along the line -- in FIG. 2, FIG. 4 is an exploded perspective view of the conventional connector, and FIG. 5 is a longitudinal sectional view of the same in an assembled state. DESCRIPTION OF SYMBOLS 1... Connector housing, 2... Terminal accommodation chamber, 3... Terminal, 4... Spacer, 2a, 3c...
...Groove and raised piece (as a locking means), 4b...
Locking claw (as a housing locking part), 4c...
Locking arm (as a terminal locking part), 4d...notch groove.

Claims

[Scope of utility model registration request]

A locking means 2a is provided between the terminal accommodating chamber 2 in the connector housing 1 and the terminal 3 inserted into the accommodating chamber.
3c, and a spacer 4 having a housing locking portion and a terminal locking portion is inserted from the terminal insertion side of the storage chamber to double prevent the terminal from coming out later, the spacer 4 is a gate-shaped frame. body 4
A locking claw 4b that engages with the inner wall of the terminal accommodating chamber 2 is provided on both side walls of a, and a pair of locking arms 4c are provided projecting forward from the both side walls. is a cutout groove 4d that engages with the shoulder of the terminal 3.
A connector characterized by being provided with.