JP4732901B2 - Terminal lock release structure and connector using this structure - Google Patents

Terminal lock release structure and connector using this structure Download PDF

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JP4732901B2
JP4732901B2 JP2006005343A JP2006005343A JP4732901B2 JP 4732901 B2 JP4732901 B2 JP 4732901B2 JP 2006005343 A JP2006005343 A JP 2006005343A JP 2006005343 A JP2006005343 A JP 2006005343A JP 4732901 B2 JP4732901 B2 JP 4732901B2
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terminal
locking
connector
lance
locking lance
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JP2007188726A (en
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康弘 笹木
正二 山本
隆浩 米田
亮 澤田
健 吉村
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Nissan Motor Co Ltd
Yazaki Corp
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Nissan Motor Co Ltd
Yazaki Corp
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Description

本発明は、ワイヤーハーネス用コネクタの端子係止構造において、解除治具を用いた端子係止解除構造及びこの構造を用いたコネクタに関する。   The present invention relates to a terminal locking release structure using a releasing jig and a connector using this structure in a terminal locking structure for a wire harness connector.

特許文献１には、ワイヤーハーネスの電線端末が接続された端子がコネクタの端子収容室内に係止された構造が記載されている。この端子は、可撓性のアームの先端にコネクタに形成された係止ランスによって係止されている。この係止ランスは、端子の係止部と当接する係止突起と、端子を端子収容室内から取り外すときに用いられる解除治具が当接する係合片とを有している。この係合片は、先端側がテーパ面となっており、解除治具を係合片の先端やテーパ面に当接させて係止ランスを可撓方向に撓ませ、端子の係止部と係止ランスの係止突起との係合を解除し、端子を端子収容室内から取り外している。
特開平４−１８９４７８号公報（図６） Patent Document 1 describes a structure in which a terminal to which an electric wire terminal of a wire harness is connected is locked in a terminal accommodating chamber of a connector. This terminal is locked by a locking lance formed on the connector at the tip of the flexible arm. This locking lance has a locking projection that contacts the locking portion of the terminal, and an engagement piece that contacts a release jig used when the terminal is removed from the terminal accommodating chamber. The engaging piece has a tapered surface at the tip side, and the release jig is brought into contact with the tip or taper surface of the engaging piece to bend the locking lance in the flexible direction, thereby engaging the locking portion of the terminal. The engagement with the locking projection of the locking lance is released, and the terminal is removed from the terminal accommodating chamber.
Japanese Patent Laid-Open No. 4-189478 (FIG. 6)

上記のように解除治具を用いて端子と係止ランスとの係合の解除を行う場合、解除作業は手探りで行うため、解除治具先端にテーパ面を設けて係止ランスに引っ掛け易くしたり、上記のように係止ランスの係合片の先端側にテーパ面を設けて解除治具の先端を誘導し易い形状が取られていた。   When releasing the engagement between the terminal and the locking lance using the release jig as described above, the release work is carried out by hand, so a tapered surface is provided at the tip of the release jig to make it easier to hook on the locking lance. As described above, a tapered surface is provided on the distal end side of the engagement piece of the locking lance so that the distal end of the release jig is easily guided.

しかしながら、解除治具による解除性を重視した上記の係合片のテーパ形状は、端子に当接する部位が断面上一点となり、端子と係合片との間に隙間ができ、ガタが発生し易く端子の保持状態が不安定となる可能性があった。   However, the taper shape of the above-mentioned engagement piece that places importance on the releasability by the release jig is such that the portion that contacts the terminal becomes one point on the cross section, a gap is formed between the terminal and the engagement piece, and rattling is likely to occur. There was a possibility that the terminal holding state would become unstable.

そこで、この発明は、端子を端子収容室内に確実に係止させると共に、解除治具による解除作業性を向上させることのできる端子係止解除構造及びこの構造を用いたコネクタの提供を目的としている。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a terminal locking release structure capable of securely locking a terminal in a terminal accommodating chamber and improving the release workability by a release jig, and a connector using this structure. .

請求項１の発明は、電線を加締めた端子と、係止ランスにより端子収容室内に端子を収容するコネクタと、コネクタに収容した端子を抜く際の係止解除用の解除治具とを備えた端子係止解除構造であって、前記端子は、相手端子と接続される端子接続部と、前記電線が加締められる電線加締部と、前記コネクタの係止ランスと係合する係止部と、前記係止ランス側に突出し、前記係止ランスと前記係止部とが係合した状態で端子を挿入方向に摺動させた時に前記係止ランスと当接して該係止ランスを前記係止部との係合の解除方向に撓ませ、前記係止ランスと前記係止部との係合を解除させる突起とを有していることを特徴とする。 The invention of claim 1 includes a terminal in which an electric wire is crimped, a connector that accommodates the terminal in the terminal accommodating chamber by a locking lance, and a release jig for releasing the lock when the terminal accommodated in the connector is pulled out. And a terminal connecting portion connected to a mating terminal, a wire crimping portion to which the electric wire is crimped, and a locking portion to be engaged with a locking lance of the connector. And when the terminal is slid in the insertion direction in a state where the locking lance and the locking portion are engaged with each other, the locking lance comes into contact with the locking lance. It has a projection that is bent in the direction of releasing the engagement with the locking portion and releases the engagement between the locking lance and the locking portion .

請求項２の発明は、請求項１記載の端子係止解除構造であって、前記コネクタは、前記端子の端子接続部側から前記端子収容室に沿って形成される治具挿入孔と、コネクタに収容されて前記端子の係止・位置決めを行うフロントホルダとを有していることを特徴とする。   The invention of claim 2 is the terminal locking release structure according to claim 1, wherein the connector includes a jig insertion hole formed along the terminal accommodating chamber from the terminal connecting portion side of the terminal, and a connector. And a front holder for locking and positioning the terminal.

請求項３の発明は、請求項１又は２記載の端子係止解除構造であって、前記係止ランスは、前記端子の基面と当接して支持する水平部を有する係合片と、前記端子の係止部に当接して端子を所定の位置に保持・固定させる係止突起とを有し、前記係止突起は、固定端側から徐々に競り上がるように傾斜していることを特徴とする。   The invention of claim 3 is the terminal locking release structure according to claim 1 or 2, wherein the locking lance has an engaging piece having a horizontal portion that contacts and supports the base surface of the terminal, and A locking projection for contacting and holding the terminal in a predetermined position by contacting the terminal locking portion, and the locking projection is inclined so as to gradually compete from the fixed end side. And

請求項４の発明は、請求項１乃至３のいずれか１項に記載の端子係止解除構造であって、前記解除治具は、先端が傾斜形状となっており、該先端を前記コネクタに挿入することによって前記係止ランスを撓ませて前記端子を前記端子収容室内から取り外せることを特徴とする。   The invention of claim 4 is the terminal lock release structure according to any one of claims 1 to 3, wherein the release jig has an inclined tip, and the tip is attached to the connector. By inserting, the said latching lance is bent and the said terminal can be removed from the said terminal storage chamber, It is characterized by the above-mentioned.

請求項５の発明は、請求項１乃至４のいずれか１項に記載の端子係止解除構造を用いたコネクタであって、前記係止ランスは、前記端子の基面と当接して支持する水平支持面と、前記端子の係止部に当接して端子を所定の位置に保持・固定させる係止面と、前記端子を挿入方向に摺動させた時に端子の前記突起と当接する傾斜面とを有していることを特徴する。   The invention of claim 5 is a connector using the terminal lock release structure according to any one of claims 1 to 4, wherein the lock lance contacts and supports the base surface of the terminal. A horizontal support surface, a locking surface that contacts the locking portion of the terminal to hold and fix the terminal in a predetermined position, and an inclined surface that contacts the protrusion of the terminal when the terminal is slid in the insertion direction It is characterized by having.

請求項１の端子係止解除構造は、端子を係止ランスが撓む側に押圧しながら挿入方向に摺動させた時に係止ランスと当接してこの係止ランスを係止部との係合の解除方向に撓ませる突起を端子に有しているので、端子の突起によって係止ランスを撓ませることができ、解除治具が係止ランスの先端を容易にとらえることができる。従って、解除治具による解除操作において係止ランスにこじり等の負荷を与えることなくスムーズに端子の係止を解除することができる。   The terminal unlocking structure according to claim 1 is in contact with the locking lance when the terminal is slid in the insertion direction while pressing the terminal toward the side where the locking lance is bent. Since the terminal has the protrusion that bends in the release direction, the locking lance can be bent by the protrusion of the terminal, and the release jig can easily catch the tip of the locking lance. Accordingly, it is possible to smoothly release the terminal without giving a load such as a twist to the locking lance in the releasing operation by the releasing jig.

また、こじり等で係止ランスに過剰な変形応力を与えることがないので、係止ランスは塑性変形し難いので係止ランスのバネ性の低下を招くことがなく、端子の保持力低下を防止することができる。   Also, since the locking lance is not subject to excessive deformation stress due to twisting, etc., the locking lance is difficult to be plastically deformed, so the springiness of the locking lance is not reduced and the terminal holding force is prevented from being lowered. can do.

請求項２の端子係止解除構造は、コネクタが端子の端子接続部側から端子収容室に沿って形成される治具挿入孔を有しているので、端子の係止解除操作において、解除治具を治具挿入孔に挿入するだけで、係止ランスの先端を確実にとらえることができ、スムーズに端子の係止を解除することができる。   In the terminal lock release structure of the second aspect, since the connector has a jig insertion hole formed along the terminal accommodating chamber from the terminal connection portion side of the terminal, the terminal lock release structure can be released in the terminal lock release operation. By simply inserting the tool into the jig insertion hole, the tip of the locking lance can be reliably captured, and the terminal locking can be smoothly released.

また、コネクタが端子の係止・位置決めを行うフロントホルダを有しているので、端子の係止状態において、係止ランスの可撓空間にフロントホルダの固定部が挿入されており、係止ランスの撓みを規制し、端子を確実に端子収容室内に係止することができる。   Further, since the connector has a front holder for locking and positioning the terminal, the fixing portion of the front holder is inserted into the flexible space of the locking lance when the terminal is locked. The terminal can be reliably locked in the terminal accommodating chamber.

さらに、フロントホルダの係止状態を解除しても、恣意的に端子を係止ランスが撓む側に押圧しながら挿入方向にスライドさせなければ、端子の突起が係止ランスと当接することがなく、端子を端子収容室内に仮係止状態として維持することができる。   Furthermore, even if the locking state of the front holder is released, the protrusion of the terminal may come into contact with the locking lance if the terminal is not slid in the insertion direction while arbitrarily pressing the terminal against the side where the locking lance is bent. The terminal can be maintained in a temporarily locked state in the terminal accommodating chamber.

請求項３の端子係止解除構造は、係止ランスが端子の基面と当接して支持する水平部を有する係合片を有しているので、端子と係止ランスとの間に隙間がなく、端子にガタが発生せず、端子の保持状態を安定させることができる。   In the terminal lock release structure according to the third aspect, since the lock lance has an engagement piece having a horizontal portion that contacts and supports the base surface of the terminal, there is a gap between the terminal and the lock lance. Therefore, the terminal does not play and the terminal holding state can be stabilized.

また、係止ランスの係止突起が固定端側から徐々に競り上がるように傾斜しているので、端子を係止ランスが撓む側に押圧しながら挿入方向にスライドさせた際に、端子の突起が徐々に係止突起と当接することとなり、スムーズに係止ランスを撓ませることができる。   In addition, since the locking projection of the locking lance is inclined so that it gradually rises from the fixed end side, when the terminal is slid in the insertion direction while pressing the locking lance toward the bending side, The protrusion gradually comes into contact with the locking protrusion, and the locking lance can be smoothly bent.

請求項４の端子係止解除構造は、解除治具の先端が傾斜形状となっているので、端子の係止解除操作の際に、撓まされた係止ランスの先端を確実にとらえることができる。   In the terminal lock release structure according to the fourth aspect, since the tip of the release jig has an inclined shape, the tip of the bent lock lance can be reliably caught during the terminal lock release operation. it can.

請求項５のコネクタは、係止ランスが端子の基面と当接して支持する水平支持面を有しているので、端子と係止ランスとの間に隙間がなく、端子にガタが発生せず、端子の保持状態を安定させることができる。   The connector according to claim 5 has a horizontal support surface that the locking lance contacts and supports the base surface of the terminal, so that there is no gap between the terminal and the locking lance, and the terminal does not play. Therefore, the terminal holding state can be stabilized.

また、係止ランスが撓む側に押圧しながら端子を挿入方向に摺動させた時に端子の突起と当接する傾斜面を有しているので、端子を挿入方向にスライドさせた際に、端子の突起が徐々に係止突起と当接することとなり、スムーズに係止ランスを撓ませることができる。   In addition, it has an inclined surface that comes into contact with the protrusion of the terminal when the terminal is slid in the insertion direction while pressing the locking lance against the side to be bent, so when the terminal is slid in the insertion direction, the terminal The protrusions gradually come into contact with the locking protrusions, and the locking lance can be smoothly bent.

図１乃至図４を用いて実施形態について説明する。   The embodiment will be described with reference to FIGS. 1 to 4.

本実施形態の端子係止解除構造は、電線Ｗを加締めた端子１と、係止ランス３により端子収容室５内に端子１を収容するコネクタ７と、コネクタ７に収容した端子１を抜く際の係止解除用の解除治具９とを備えている。   The terminal lock release structure of the present embodiment pulls out the terminal 1 in which the electric wire W is crimped, the connector 7 that accommodates the terminal 1 in the terminal accommodating chamber 5 by the locking lance 3, and the terminal 1 that is accommodated in the connector 7. And a release jig 9 for releasing the lock.

図１乃至図４に示すように、端子１は、相手端子（不図示）と接続される端子接続部１１と、電線Ｗが加締められる電線加締部１３と、コネクタ７の係止ランス３と係合する係止部１５と、係止ランス３側に突出し、端子１を挿入方向に摺動させた時に係止ランス３と当接して係止ランス３を係止部１５との係合の解除方向に撓ませる突起１７とを有している。   As shown in FIGS. 1 to 4, the terminal 1 includes a terminal connection portion 11 connected to a mating terminal (not shown), a wire crimping portion 13 to which the wire W is crimped, and a locking lance 3 for the connector 7. The locking portion 15 that engages with the locking lance 3, protrudes toward the locking lance 3, and comes into contact with the locking lance 3 when the terminal 1 is slid in the insertion direction to engage the locking lance 3 with the locking portion 15. And a protrusion 17 that bends in the releasing direction.

端子１の端子接続部１１は、コネクタ７のフード部１９内に突出され、相手コネクタ（不図示）をコネクタ７に嵌合することによって相手端子（不図示）と接続される。端子１の係止部１５は、端子接続部１１より電線加締部１３側に設けられ、基面２１と係止面２３とを有している。端子１の突起１７は、係止部１５より電線加締部１３側で、係止部１５と後述する係止突起４１に撓み方向に力が加わらない所定の距離で離間して設けられている。また、この突起１７は、端子１が端子収容室５に収容された状態で、係止ランス３側に突出するように形成されている。なお、突起１７の突出量は、係止ランス３の固定端側と当接しないように設定されている。さらに、端子１の係止部１５と反対側の部分には、仮係止突起Ａが設けられている。この仮係止突起Ａは、端子１をコネクタ７に挿入し、仮係止した際、端子１がコネクタ７の嵌合位置に止まるように挿入位置を規制するコネクタ７の仮係止段差Ｂに当接する。   The terminal connecting portion 11 of the terminal 1 protrudes into the hood portion 19 of the connector 7 and is connected to the mating terminal (not shown) by fitting the mating connector (not shown) to the connector 7. The locking portion 15 of the terminal 1 is provided closer to the wire crimping portion 13 than the terminal connection portion 11, and has a base surface 21 and a locking surface 23. The protrusion 17 of the terminal 1 is provided on the electric wire crimping part 13 side from the engaging part 15 and spaced apart by a predetermined distance in which no force is applied to the engaging part 15 and an engaging protrusion 41 described later in the bending direction. . The protrusion 17 is formed so as to protrude toward the locking lance 3 in a state where the terminal 1 is accommodated in the terminal accommodating chamber 5. The protruding amount of the protrusion 17 is set so as not to contact the fixed end side of the locking lance 3. Further, a temporary locking projection A is provided on the portion of the terminal 1 opposite to the locking portion 15. The temporary locking protrusion A is provided on the temporary locking step B of the connector 7 that restricts the insertion position so that the terminal 1 stops at the fitting position of the connector 7 when the terminal 1 is inserted into the connector 7 and temporarily locked. Abut.

コネクタ７は、複数の端子１を収容する複数の端子収容室５と、端子１の係止部１５を係止する係止ランス３と、端子１の端子接続部１１側から端子収容室５に沿って形成される治具挿入孔２５と、コネクタ７に収容されて端子１の係止・位置決めを行うフロントホルダ２７とを有している。係止ランス３は、可撓性を有するように端子収容室５の底壁側に形成されている。治具挿入孔２５は、解除治具９が挿入されたときに解除治具９が係止ランス３の先端側に当接するように端子収容室５に沿って形成されている。フロントホルダ２７は、コネクタ７のフード部１９側から挿入されて、係止ランス３の下部の空間に固定部２９を挿入して係止ランス３の下部側への撓みを規制し、端子１の係止・位置決めを行う。このフロントホルダ２７には、端子１の端子接続部１１が挿入される端子取出部３１が形成された端子取出部壁３３を有している。また、この端子取出部壁３３には、治具挿入孔２５と連通する治具挿入部３５が形成されている。   The connector 7 includes a plurality of terminal accommodating chambers 5 that accommodate a plurality of terminals 1, an engaging lance 3 that engages an engaging portion 15 of the terminal 1, and a terminal connecting portion 11 side of the terminal 1 to the terminal accommodating chamber 5. It has a jig insertion hole 25 formed along the front and a front holder 27 which is accommodated in the connector 7 and locks and positions the terminal 1. The locking lance 3 is formed on the bottom wall side of the terminal accommodating chamber 5 so as to have flexibility. The jig insertion hole 25 is formed along the terminal accommodating chamber 5 so that the release jig 9 comes into contact with the distal end side of the locking lance 3 when the release jig 9 is inserted. The front holder 27 is inserted from the hood portion 19 side of the connector 7, and a fixing portion 29 is inserted into the space below the locking lance 3 to restrict the bending of the locking lance 3 toward the lower side. Lock and position. The front holder 27 has a terminal extraction portion wall 33 in which a terminal extraction portion 31 into which the terminal connection portion 11 of the terminal 1 is inserted is formed. Further, a jig insertion portion 35 communicating with the jig insertion hole 25 is formed on the terminal extraction portion wall 33.

コネクタ７の係止ランス３は、端子１の基面２１と当接して支持する水平部３７を有する係合片３９と、端子１の係止部１５に当接して端子１を所定の位置に保持・固定させる係止突起４１とを有している。係合片３９は、係止ランス３の自由端側に形成されている。係合片３９の水平部３７には、端子１を端子収容室５内に係止させた際に、端子１の基面２１と水平部３７との間に隙間がなくなくなるように当接する水平支持面４３が形成されている。係止突起４１には、端子１の係止部１５の係止面２３と当接する係止面４５が形成されている。また、係止突起４１には、固定端側から徐々に競り上がるように傾斜する傾斜面４７が形成されている。   The locking lance 3 of the connector 7 is brought into contact with the base portion 21 of the terminal 1 and has an engaging piece 39 having a horizontal portion 37 to be supported, and the locking portion 15 of the terminal 1 to bring the terminal 1 into a predetermined position. It has the latching protrusion 41 to hold | maintain and fix. The engagement piece 39 is formed on the free end side of the locking lance 3. The horizontal portion 37 of the engagement piece 39 is in contact with the horizontal portion 37 so that there is no gap between the base surface 21 of the terminal 1 and the horizontal portion 37 when the terminal 1 is locked in the terminal accommodating chamber 5. A support surface 43 is formed. The locking projection 41 is formed with a locking surface 45 that contacts the locking surface 23 of the locking portion 15 of the terminal 1. In addition, the locking protrusion 41 is formed with an inclined surface 47 that is inclined so as to gradually rise from the fixed end side.

解除治具９は、先端が傾斜形状となっている。この解除治具９の先端をフロントホルダ２７の治具挿入部３５及びコネクタ７の治具挿入孔２５に挿入することによって、先端が係止ランス３の係合片３９と当接して係止ランス３を撓ませて端子１を端子収容室５内から取り外すことができる。   The release jig 9 has an inclined tip. By inserting the distal end of the release jig 9 into the jig insertion portion 35 of the front holder 27 and the jig insertion hole 25 of the connector 7, the distal end abuts on the engagement piece 39 of the engagement lance 3 and the engagement lance 3 can be bent to remove the terminal 1 from the terminal accommodating chamber 5.

次に、端子１の係止解除方法について説明する。   Next, a method for unlocking the terminal 1 will be described.

図２に示すように、端子１は、係止ランス３とフロントホルダ２７によってコネクタ７に係止されている。まず、図３に示すように、フロントホルダ２７を係止ランス３が撓み可能となる位置まで移動させる。次に、端子１を端子接続部１１側に摺動させ、端子１の突起１７と係止ランス３の係止突起４１とを当接させる。ここで、端子１は仮係止突起Ａと仮係止段差Ｂとによって挿入方向への移動が規制されているので、仮係止突起Ａを仮係止段差Ｂの傾斜面に沿って仮係止段差Ｂに潜り込ませるように端子１を挿入方向へ移動させる。これにより、端子１の仮係止状態が解除され、端子１を端子接続部１１側へ移動させることができる。そして、係止突起４１には固定端側から徐々に競り上がるように傾斜する傾斜面４７が形成されているので、突起１７が傾斜面４７と当接することによって係止ランス３が下方に撓み、係止部１５と係止ランス３との係合が解除される。この状態で、図４に示すように、解除治具９をフロントホルダ２７の治具挿入部３５及びコネクタ７の治具挿入孔２５に挿入する。このときすでに係止ランス３は下方に撓んでいるので、解除治具９の先端は、係止ランス３の係合片３９を容易にとらえることができる。そして、解除治具９の先端は傾斜形状となっているので、解除治具９を挿入することによって係止ランス３をさらに下方に撓ませて端子１を端子収容室５から取り外すことができる。   As shown in FIG. 2, the terminal 1 is locked to the connector 7 by the locking lance 3 and the front holder 27. First, as shown in FIG. 3, the front holder 27 is moved to a position where the locking lance 3 can be bent. Next, the terminal 1 is slid to the terminal connecting portion 11 side, and the protrusion 17 of the terminal 1 and the locking protrusion 41 of the locking lance 3 are brought into contact with each other. Here, since the movement of the terminal 1 in the insertion direction is restricted by the temporary locking protrusion A and the temporary locking step B, the temporary locking protrusion A is temporarily locked along the inclined surface of the temporary locking step B. The terminal 1 is moved in the insertion direction so as to enter the stop level B. Thereby, the temporarily locked state of the terminal 1 is cancelled | released and the terminal 1 can be moved to the terminal connection part 11 side. And since the inclined surface 47 which inclines so that it may gradually compete from the fixed end side is formed in the latching protrusion 41, when the projection 17 contacts the inclined surface 47, the latching lance 3 bends downward, The engagement between the locking portion 15 and the locking lance 3 is released. In this state, as shown in FIG. 4, the release jig 9 is inserted into the jig insertion portion 35 of the front holder 27 and the jig insertion hole 25 of the connector 7. At this time, since the locking lance 3 has already been bent downward, the tip of the release jig 9 can easily catch the engaging piece 39 of the locking lance 3. Since the tip of the release jig 9 has an inclined shape, by inserting the release jig 9, the locking lance 3 can be further bent downward to remove the terminal 1 from the terminal accommodating chamber 5.

このような端子係止解除構造では、端子１を係止ランス３が撓む側に押圧しながら挿入方向に摺動させた時に係止ランス３と当接してこの係止ランス３を係止部１５との係合の解除方向に撓ませる突起１７を有しているので、端子１の突起１７によって係止ランス３を撓ませることができ、解除治具９が係止ランス３の先端を容易にとらえることができる。従って、解除治具９による解除操作において係止ランス３にこじり等の負荷を与えることなくスムーズに端子１の係止を解除することができる。   In such a terminal lock release structure, when the terminal 1 is slid in the insertion direction while pressing the lock lance 3 toward the bending side, the terminal 1 comes into contact with the lock lance 3 and the lock lance 3 is locked. 15 has a protrusion 17 that bends in the direction in which the engagement with the terminal 15 is released, so that the locking lance 3 can be bent by the protrusion 17 of the terminal 1, and the release jig 9 can easily move the tip of the locking lance 3. Can be captured. Therefore, the locking of the terminal 1 can be smoothly released without applying a load such as a twist to the locking lance 3 in the releasing operation by the releasing jig 9.

また、こじり等で係止ランス３に過剰な変形応力を与えることがないので、係止ランス３は塑性変形し難いので係止ランス３のバネ性の低下を招くことがなく、端子１の保持力低下を防止することができる。   Further, since excessive deformation stress is not applied to the locking lance 3 due to a twist or the like, the locking lance 3 is difficult to be plastically deformed. It is possible to prevent a decrease in force.

さらに、コネクタ７が端子１の端子接続部１１側から端子収容室５に沿って形成される治具挿入孔２５を有しているので、端子１の係止解除操作において、解除治具９を治具挿入孔２５に挿入するだけで、係止ランス３の先端を確実にとらえることができ、スムーズに端子１の係止を解除することができる。   Further, since the connector 7 has a jig insertion hole 25 formed along the terminal accommodating chamber 5 from the terminal connection portion 11 side of the terminal 1, in the unlocking operation of the terminal 1, Only by inserting the jig into the jig insertion hole 25, the tip of the locking lance 3 can be reliably caught, and the locking of the terminal 1 can be released smoothly.

加えて、コネクタ７が端子の係止・位置決めを行うフロントホルダ２７を有しているので、係止ランス３の可撓空間に固定部２９が挿入されており、係止ランス３の撓みを規制し、端子１の係止状態において、端子１を確実に端子収容室５内に係止することができる。また、フロントホルダ２７には、治具挿入孔２５と連通する治具挿入部３５が形成されているので、フロントホルダ２７をコネクタ７から完全に取り外さなくてもフロントホルダ２７を移動させるだけで、解除治具９を挿入することができる。   In addition, since the connector 7 has a front holder 27 for locking and positioning the terminals, the fixing portion 29 is inserted into the flexible space of the locking lance 3 to restrict the bending of the locking lance 3. In the locked state of the terminal 1, the terminal 1 can be reliably locked in the terminal accommodating chamber 5. In addition, since the jig insertion portion 35 communicating with the jig insertion hole 25 is formed in the front holder 27, the front holder 27 can be moved only without removing the front holder 27 from the connector 7. A release jig 9 can be inserted.

さらに、フロントホルダ２７の係止状態を解除しても、仮係止突起Ａが端子１の挿入方向への移動を規制し、恣意的に端子１を係止ランス３が撓む側に押圧しながら挿入方向にスライドさせなければ、端子１の突起１７が係止ランス３と当接することがなく、端子１を端子収容室５内に仮係止状態として維持することができる。   Further, even if the locking state of the front holder 27 is released, the temporary locking protrusion A restricts the movement of the terminal 1 in the insertion direction, and arbitrarily presses the terminal 1 to the side where the locking lance 3 bends. However, if the terminal 17 is not slid in the insertion direction, the protrusion 17 of the terminal 1 does not come into contact with the locking lance 3, and the terminal 1 can be maintained in the terminal receiving chamber 5 in a temporarily locked state.

加えて、係止ランス３が端子１の基面２１と当接して支持する水平部３７を有する係合片３９を有しているので、端子１と係止ランス３との間に隙間がなく、端子１にガタが発生せず、端子１の保持状態を安定させることができる。   In addition, since the locking lance 3 has the engaging piece 39 having the horizontal portion 37 that contacts and supports the base surface 21 of the terminal 1, there is no gap between the terminal 1 and the locking lance 3. As a result, no play occurs in the terminal 1, and the holding state of the terminal 1 can be stabilized.

また、係止ランス３の係止突起４１が固定端側から徐々に競り上がるように傾斜する傾斜面４７を有しているので、端子１を挿入方向にスライドさせた際に、端子１の突起１７が徐々に係止突起４１と当接することとなり、スムーズに係止ランス３を撓ませることができる。   Further, since the locking projection 41 of the locking lance 3 has the inclined surface 47 that is inclined so as to gradually rise from the fixed end side, the projection of the terminal 1 when the terminal 1 is slid in the insertion direction. 17 gradually comes into contact with the locking projection 41, and the locking lance 3 can be smoothly bent.

さらに、解除治具９の先端が傾斜形状となっているので、端子１の係止解除操作の際に、撓まされた係止ランス３の先端を確実にとらえることができる。従って、解除治具９を挿入することによって係止ランス３をさらに下方に撓ませて端子１を端子収容室５から取り外すことができる。   Furthermore, since the tip of the release jig 9 has an inclined shape, the tip of the bent locking lance 3 can be reliably captured when the terminal 1 is unlocked. Therefore, by inserting the release jig 9, the locking lance 3 can be further bent downward to remove the terminal 1 from the terminal accommodating chamber 5.

本実施形態の端子の斜視図である。It is a perspective view of the terminal of this embodiment. 本実施形態の端子をコネクタに係止させたときの断面図及び要部拡大断面図である。It is sectional drawing when the terminal of this embodiment is latched to a connector, and an important section expanded sectional view. 本実施形態の端子と係止ランスとの係合を解除させたときの断面図及び要部拡大図である。It is sectional drawing and the principal part enlarged view when releasing the engagement of the terminal of this embodiment, and the latching lance. 本実施形態のコネクタに解除治具を挿入させたときの断面図である。It is sectional drawing when a cancellation | release jig | tool is inserted in the connector of this embodiment.

符号の説明Explanation of symbols

１…端子
３…係止ランス
５…端子収容室
７…コネクタ
９…解除治具
１５…係止部
１７…突起
２１…基面
２３…係止面
２５…治具挿入孔
２７…フロントホルダ
３５…治具挿入部
３７…水平部
３９…係合片
４１…係止突起
４３…水平支持面
４５…係止面
４７…傾斜面
DESCRIPTION OF SYMBOLS 1 ... Terminal 3 ... Locking lance 5 ... Terminal accommodation chamber 7 ... Connector 9 ... Release jig | tool 15 ... Locking part 17 ... Protrusion 21 ... Base surface 23 ... Locking surface 25 ... Jig insertion hole 27 ... Front holder 35 ... Jig insertion part 37 ... Horizontal part 39 ... Engagement piece 41 ... Locking protrusion 43 ... Horizontal support surface 45 ... Locking surface 47 ... Inclined surface

Claims (5)

電線を加締めた端子と、係止ランスにより端子収容室内に端子を収容するコネクタと、コネクタに収容した端子を抜く際の係止解除用の解除治具とを備えた端子係止解除構造であって、
前記端子は、相手端子と接続される端子接続部と、前記電線が加締められる電線加締部と、前記コネクタの係止ランスと係合する係止部と、前記係止ランス側に突出し、前記係止ランスと前記係止部とが係合した状態で端子を挿入方向に摺動させた時に前記係止ランスと当接して該係止ランスを前記係止部との係合の解除方向に撓ませ、前記係止ランスと前記係止部との係合を解除させる突起とを有していることを特徴とする端子係止解除構造。 A terminal lock release structure comprising a terminal with crimped wires, a connector for receiving the terminal in the terminal receiving chamber by a lock lance, and a release jig for releasing the lock when the terminal accommodated in the connector is pulled out. There,
The terminal protrudes toward the locking lance, a terminal connecting portion connected to a mating terminal, a wire crimping portion to which the electric wire is crimped, a locking portion that engages with a locking lance of the connector, When the terminal is slid in the insertion direction with the locking lance and the locking portion engaged, the locking lance contacts the locking lance to release the engagement with the locking portion. And a protrusion for releasing the engagement between the locking lance and the locking portion . 請求項１記載の端子係止解除構造であって、
前記コネクタは、前記端子の端子接続部側から前記端子収容室に沿って形成される治具挿入孔と、コネクタに収容されて前記端子の係止・位置決めを行うフロントホルダとを有していることを特徴とする端子係止解除構造。 The terminal lock release structure according to claim 1,
The connector has a jig insertion hole formed along the terminal accommodating chamber from the terminal connecting portion side of the terminal, and a front holder that is accommodated in the connector and locks and positions the terminal. A terminal unlocking structure characterized by that. 請求項１又は２記載の端子係止解除構造であって、
前記係止ランスは、前記端子の基面と当接して支持する水平部を有する係合片と、前記端子の係止部に当接して端子を所定の位置に保持・固定させる係止突起とを有し、前記係止突起は、固定端側から徐々に競り上がるように傾斜していることを特徴とする端子係止解除構造。 The terminal lock release structure according to claim 1 or 2,
The locking lance includes an engagement piece having a horizontal portion that contacts and supports the base surface of the terminal, and a locking protrusion that contacts the locking portion of the terminal and holds and fixes the terminal in a predetermined position. And the locking projection is inclined so as to gradually compete from the fixed end side. 請求項１乃至３のいずれか１項に記載の端子係止解除構造であって、
前記解除治具は、先端が傾斜形状となっており、該先端を前記コネクタに挿入することによって前記係止ランスを撓ませて前記端子を前記端子収容室内から取り外せることを特徴とする端子係止解除構造。 The terminal lock release structure according to any one of claims 1 to 3,
The release jig has a slanted tip, and the terminal can be removed from the terminal accommodating chamber by bending the lock lance by inserting the tip into the connector. Release structure. 請求項１乃至４のいずれか１項に記載の端子係止解除構造を用いたコネクタであって、
前記係止ランスは、前記端子の基面と当接して支持する水平支持面と、前記端子の係止部に当接して端子を所定の位置に保持・固定させる係止面と、前記端子を挿入方向に摺動させた時に端子の前記突起と当接する傾斜面とを有していることを特徴するコネクタ。
A connector using the terminal lock release structure according to any one of claims 1 to 4,
The locking lance includes a horizontal support surface that contacts and supports the base surface of the terminal, a locking surface that contacts the locking portion of the terminal and holds and fixes the terminal in a predetermined position, and the terminal. A connector having an inclined surface that comes into contact with the protrusion of the terminal when slid in the insertion direction.
JP2006005343A 2006-01-12 2006-01-12 Terminal lock release structure and connector using this structure Expired - Fee Related JP4732901B2 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002313472A (en) * 2001-04-16 2002-10-25 Yazaki Corp Connector
JP2003272748A (en) * 2002-03-19 2003-09-26 Sumitomo Wiring Syst Ltd Connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002313472A (en) * 2001-04-16 2002-10-25 Yazaki Corp Connector
JP2003272748A (en) * 2002-03-19 2003-09-26 Sumitomo Wiring Syst Ltd Connector

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