JP6292481B2

JP6292481B2 - connector

Info

Publication number: JP6292481B2
Application number: JP2015092452A
Authority: JP
Inventors: 大森　弘之; 弘之大森; 俊和佐波
Original assignee: Sumitomo Wiring Systems Ltd
Current assignee: Sumitomo Wiring Systems Ltd
Priority date: 2015-04-29
Filing date: 2015-04-29
Publication date: 2018-03-14
Anticipated expiration: 2035-04-29
Also published as: CN106099545A; CN106099545B; FR3035746A1; JP2016212958A

Description

本発明は、嵌合検知部材を備えたコネクタに関する。 The present invention relates to a connector provided with a fitting detection member.

従来、互いに嵌合される一対のコネクタハウジングの嵌合状態を検知することが可能な嵌合検知部材を備えたコネクタが知られている。嵌合検知部材は、一対のコネクタハウジングの正規嵌合時には初期位置から前方への移動が可能で、半嵌合時には初期位置から前方への移動が不可能であるようにして、一方のコネクタハウジングに装着されている。すなわち、嵌合検知部材を初期位置から移動できるか否かによってコネクタの嵌合状態を知ることができる。 2. Description of the Related Art Conventionally, there has been known a connector provided with a fitting detection member capable of detecting a fitting state of a pair of connector housings fitted to each other. The fitting detection member can move forward from the initial position when the pair of connector housings are normally fitted, and cannot move forward from the initial position when half-fitted. It is attached to. That is, it is possible to know the fitting state of the connector based on whether or not the fitting detection member can be moved from the initial position.

この種のコネクタにおいて例えば下記特許文献１に記載されたコネクタの嵌合検知部材は、後端部に設けられたベース部と、ベース部の左右両端部から前方に突出して設けられた一対のストップアームとを有している。一対のストップアームは、コネクタハウジングに係止して嵌合検知部材の移動を規制するものである。詳しくは、一対のストップアームは、嵌合検知部材が初期位置に配されているときにコネクタハウジングに設けられたロックアーム（文献１ではラッチ部材）の左右両側に突設されたストップウィングに係止し、嵌合検知部材の前進を規制するようになっている。 In this type of connector, for example, a connector fitting detection member described in Patent Document 1 below includes a base portion provided at a rear end portion and a pair of stops provided so as to protrude forward from both left and right end portions of the base portion. And an arm. The pair of stop arms are engaged with the connector housing to restrict the movement of the fitting detection member. Specifically, the pair of stop arms are related to stop wings protruding on the left and right sides of a lock arm (latch member in Reference 1) provided on the connector housing when the fitting detection member is arranged at the initial position. It stops, and the advance of a fitting detection member is controlled.

そして、一対のコネクタハウジングの正規嵌合時には、一対のストップアームが相手側コネクタハウジングの作動部に持ち上げられ、ストップアームの傾斜面がストップウィングに対向した状態になる。この状態で嵌合検知部材を前方に押すと、ストップアームの傾斜面がストップウィングに当接して滑り、ストップアームがストップウィングを乗り越えて嵌合検知部材が検知位置に至るようになっている。 When the pair of connector housings are properly fitted, the pair of stop arms are lifted to the operating portion of the mating connector housing, and the inclined surface of the stop arm faces the stop wing. When the fitting detection member is pushed forward in this state, the inclined surface of the stop arm comes into contact with the stop wing and slides, so that the stop arm gets over the stop wing and the fitting detection member reaches the detection position.

特開平１０−１７７８８０号公報Japanese Patent Laid-Open No. 10-177880

しかしながら上記のような構成では、ストップアームの傾斜面がストップウィングに当接して滑るから、ストップアームがストップウィングを乗り越える際に作業者が手応えを感じにくい。すなわち、嵌合検知部材が初期位置から検知位置に移動したという手応えがないので、嵌合検知部材が検知位置に至る途中の位置に留め置かれる虞があった。 However, in the configuration as described above, the inclined surface of the stop arm slides against the stop wing, so that it is difficult for the operator to feel a response when the stop arm gets over the stop wing. That is, since there is no response that the fitting detection member has moved from the initial position to the detection position, there is a possibility that the fitting detection member may be held at a position on the way to the detection position.

本発明は上記のような事情に基づいて完成されたものであって、嵌合検知部材を確実に検知位置に移動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。 This invention is completed based on the above situations, Comprising: It aims at providing the connector which can move a fitting detection member to a detection position reliably.

本発明のコネクタは、互いに嵌合可能な一対のコネクタハウジングと、前記一対のコネクタハウジングのうち一方のコネクタハウジングに設けられ、前記一対のコネクタハウジングの正規嵌合時に、相手側コネクタハウジングに設けられたロック部に係止可能なロックアームと、前記一対のコネクタハウジングの正規嵌合時には初期位置から検知位置への前進が可能で、半嵌合時には前記初期位置から前記検知位置への前進が不可能であるようにして前記一方のコネクタハウジングに装着された嵌合検知部材と、前記一対のコネクタハウジングの半嵌合時には前記ロックアームに設けられたロック係止部に後方から係止して前記嵌合検知部材の前進を規制し、前記一対のコネクタハウジングの正規嵌合時には前記ロック部に押されて係止解除方向に変位する前記嵌合検知部材に設けられた係止部と、前記嵌合検知部材に設けられた係止部または前記ロック係止部の少なくとも一方に形成され、前記嵌合検知部材に設けられた係止部が前記係止解除方向に変位した状態で相手側の前記嵌合検知部材に設けられた係止部または前記ロック係止部と前後方向に対向する段差部と、を備えている。 The connector of the present invention is provided in a pair of connector housings that can be fitted to each other and one of the pair of connector housings, and is provided in the mating connector housing when the pair of connector housings are normally fitted. The lock arm that can be locked to the lock portion and the pair of connector housings can be moved forward from the initial position to the detection position during normal fitting, and the half-fitting is not allowed to advance from the initial position to the detection position. The fitting detection member mounted on the one connector housing as possible and the half of the pair of connector housings are locked from behind to a lock locking portion provided on the lock arm, and The forward movement of the mating detection member is restricted, and when the pair of connector housings are properly mated, they are pushed by the lock portion and unlocked. Formed in at least one of a locking portion provided in the fitting detection member that is displaced in the direction and a locking portion provided in the fitting detection member or the lock locking portion, and provided in the fitting detection member. A locking portion provided on the mating detection member on the other side in a state where the locking portion displaced in the unlocking direction or a step portion facing the lock locking portion in the front-rear direction is provided. Yes.

本発明によれば、一対のコネクタハウジングの正規嵌合時に嵌合検知部材を初期位置から検知位置に移動させようとすると、前記嵌合検知部材に設けられた係止部またはロック係止部に形成された段差部が相手側の係止部に突き当たり、作業者は、抵抗を感じることで嵌合検知部材が検知位置に至っていないことを認識できるため、その後の移動操作によって嵌合検知部材を確実に検知位置へ移動させることができる。 According to the present invention, when the fitting detection member is moved from the initial position to the detection position during normal fitting of the pair of connector housings, the engagement portion or the lock engagement portion provided in the fitting detection member is Since the formed stepped portion hits the locking portion on the other side and the operator can recognize that the fitting detection member has not reached the detection position by feeling resistance, the fitting detection member is moved by the subsequent movement operation. It can be reliably moved to the detection position.

本実施例におけるコネクタであって、一対のコネクタハウジングの正規嵌合時に嵌合検知部材が検知位置に移動した状態を示す断面図Sectional drawing which is a connector in a present Example, Comprising: A fitting detection member moved to the detection position at the time of regular fitting of a pair of connector housing コネクタハウジングを示す正面図Front view showing connector housing コネクタハウジングを示す平面図Top view showing connector housing コネクタハウジングを示す背面図Rear view showing connector housing 嵌合検知部材を示す正面図Front view showing fitting detection member 嵌合検知部材を示す側面図Side view showing fitting detection member 嵌合検知部材を示す底面図Bottom view showing fitting detection member 嵌合検知部材が初期位置に保持された状態のコネクタハウジングを示す平面図The top view which shows the connector housing of the state by which the fitting detection member was hold | maintained in the initial position 嵌合検知部材が初期位置に保持された状態のコネクタハウジングを示す背面図The rear view which shows the connector housing of the state in which the fitting detection member was hold | maintained in the initial position 嵌合検知部材が初期位置に保持された状態のコネクタハウジングを示す断面図Sectional drawing which shows the connector housing of the state by which the fitting detection member was hold | maintained in the initial position 一対のコネクタハウジングの正規嵌合時に嵌合検知部材が初期位置に配されている状態を示す断面図Sectional drawing which shows the state by which the fitting detection member is distribute | arranged to the initial position at the time of regular fitting of a pair of connector housing 係止部が係止解除方向に変位した状態で切り立った面が相手側と前後方向に対向配置された状態を示す図１１の一部拡大断面図The partially expanded sectional view of FIG. 11 which shows the state by which the surface which stood in the state which the latching | locking part displaced to the latch release direction is opposingly arranged in the front-back direction with the other party.

本発明の好ましい形態を以下に示す。
本発明のコネクタは、前記段差部に、前後方向に対して略直角をなす切り立った面が形成されているものとしてもよい。このような構成によれば、前記嵌合検知部材に設けられた係止部またはロック係止部に形成された切り立った面が相手側の係止部に突き当たるから、嵌合検知部材が検知位置に至っていないことをより確実に作業者に認識させることができる。 Preferred embodiments of the present invention are shown below.
In the connector according to the present invention, the stepped portion may be formed with a cut surface substantially perpendicular to the front-rear direction. According to such a configuration, since the locking portion provided on the fitting detection member or the cut surface formed on the lock locking portion abuts against the mating locking portion, the fitting detection member is in the detection position. It is possible to make the operator recognize that the error has not been reached.

また、本発明のコネクタは、前記嵌合検知部材に設けられた係止部または前記ロックアームに設けられた係止部のうち、前記切り立った面と前後方向に対向する相手側に、前記嵌合検知部材に設けられた係止部を前記係止解除方向に移動可能な傾斜面が形成されているものとしてもよい。 Further, the connector according to the present invention may be configured such that, of the engaging portion provided on the fitting detection member or the engaging portion provided on the lock arm, the fitting is provided on a mating side opposite to the upright surface in the front-rear direction. It is good also as what formed the inclined surface which can move the latching | locking part provided in the detection member in the said latch release direction.

このような構成によれば、一対のコネクタハウジングの正規嵌合時に嵌合検知部材を初期位置から検知位置に移動させようとしたときに係止部に形成された切り立った面が相手側の係止部の傾斜面に突き当たった後、その傾斜によって嵌合検知部材に設けられた係止部が滑るから、比較的スムーズに嵌合検知部材を検知位置に移動することができる。 According to such a configuration, when the fitting detection member is moved from the initial position to the detection position when the pair of connector housings are normally fitted, the raised surface formed in the locking portion is the other side engagement. After hitting the inclined surface of the stop portion, the engaging portion provided on the fitting detection member slides due to the inclination, so that the fitting detection member can be moved to the detection position relatively smoothly.

また、本発明のコネクタは、前記嵌合検知部材が前記検知位置に移動したときには前記嵌合検知部材に設けられた係止部が前記ロック係止部に前方から係止して前記嵌合検知部材の後進を規制するものとされ、前記嵌合検知部材に設けられた係止部または前記ロック係止部の少なくとも一方には、前記嵌合検知部材に作用する後ろ向きの力によって前記嵌合検知部材に設けられた係止部を係止解除方向へ変位させる傾斜面が形成されているものとしてもよい。 In the connector according to the present invention, when the fitting detection member moves to the detection position, a locking portion provided on the fitting detection member is locked to the lock locking portion from the front to detect the fitting. The backward movement of the engagement detection member is applied to at least one of the engagement portion provided in the engagement detection member or the lock engagement portion. It is good also as what formed the inclined surface which displaces the latching | locking part provided in the member to the latch release direction.

このような構成によれば、検知位置に配された嵌合検知部材に後ろ向きの力が作用すると、嵌合検知部材に設けられた係止部またはロック係止部の傾斜面によって嵌合検知部材に設けられた係止部が係止解除方向に変位するから、嵌合検知部材をスムーズに初期位置に移動することができる。 According to such a configuration, when a backward force is applied to the fitting detection member disposed at the detection position, the fitting detection member is provided by the locking portion provided on the fitting detection member or the inclined surface of the lock locking portion. Since the locking portion provided in the position is displaced in the locking release direction, the fitting detection member can be smoothly moved to the initial position.

＜実施例＞
以下、本発明を具体化した一実施例について、図１〜図１２を参照しつつ詳細に説明する。
本実施例におけるコネクタＣは、一対のコネクタハウジング１０，５０の嵌合状態を検知することが可能な嵌合検知部材３０を備えている。嵌合検知部材３０は、一対のコネクタハウジング１０，５０の正規嵌合時には初期位置から前方への移動が可能で、半嵌合時には初期位置から前方への移動が不可能であるようにして、一方のコネクタハウジング１０に装着されている。以下、各構成部材において、両コネクタハウジング１０，５０における嵌合面側をそれぞれ前方とし、また、図１の上側を上方、下側を下方として説明する。 <Example>
Hereinafter, an embodiment embodying the present invention will be described in detail with reference to FIGS.
The connector C in the present embodiment includes a fitting detection member 30 that can detect the fitting state of the pair of connector housings 10 and 50. The fitting detection member 30 can move forward from the initial position when the pair of connector housings 10 and 50 are properly fitted, and cannot move forward from the initial position when half-fitted. It is attached to one connector housing 10. Hereinafter, in each component member, the fitting surface side of both connector housings 10 and 50 will be described as the front side, and the upper side in FIG.

相手側コネクタハウジング５０は合成樹脂製であり、雄型の端子金具（以後、相手側端子金具５１と称する）を保持する端子保持部５２を有し、端子保持部５２の前方には筒状をなすフード部５３が一体に形成されている。相手側端子金具５１のタブ部は、端子保持部５２の前面から前方に突出してフード部５３に包囲されている。 The mating connector housing 50 is made of synthetic resin, and has a terminal holding portion 52 for holding a male terminal fitting (hereinafter referred to as a mating terminal fitting 51). A cylindrical shape is formed in front of the terminal holding portion 52. An eggplant hood 53 is integrally formed. The tab portion of the mating terminal fitting 51 protrudes forward from the front surface of the terminal holding portion 52 and is surrounded by the hood portion 53.

フード部５３の上面には、ロック部５４が突設されている。ロック部５４は、相手側コネクタハウジング５０の左右方向における中央部に配置されている。ロック部５４の前面５４Ｆは、後上りの傾斜面とされ、また、ロック部５４の上面（突出端面）５４Ｕは、略水平（前後方向に対して略平行）で平坦な面とされている。そして、ロック部５４の後面５４Ｂは、ほぼ全体が前後方向に対して略直角をなして切り立った面とされている。なお、ロック部５４の後面５４Ｂの上端角部は、後下がりに傾斜している。 On the upper surface of the hood portion 53, a lock portion 54 is projected. The lock portion 54 is disposed at the center of the mating connector housing 50 in the left-right direction. The front surface 54F of the lock portion 54 is a rear-upward inclined surface, and the upper surface (projecting end surface) 54U of the lock portion 54 is a substantially horizontal (substantially parallel to the front-rear direction) and a flat surface. The rear surface 54B of the lock portion 54 is a surface that is almost entirely cut off at a substantially right angle to the front-rear direction. The upper end corner of the rear surface 54B of the lock part 54 is inclined rearwardly downward.

コネクタハウジング１０は合成樹脂製であり、電線Ｗの端末部に接続された雌型の端子金具（以後、端子金具１１と称する）を収容して保持する端子収容部１２を有し、端子収容部１２は略角筒状をなす筒状嵌合部１３によって包囲されている。そして、端子収容部１２と筒状嵌合部１３との間の嵌合空間に、相手側コネクタハウジング５０のフード部５３が嵌入されるようになっている。 The connector housing 10 is made of synthetic resin, and has a terminal accommodating portion 12 that accommodates and holds a female terminal fitting (hereinafter referred to as a terminal fitting 11) connected to the terminal portion of the electric wire W. 12 is enclosed by the cylindrical fitting part 13 which makes | forms a substantially rectangular tube shape. The hood portion 53 of the mating connector housing 50 is inserted into the fitting space between the terminal accommodating portion 12 and the cylindrical fitting portion 13.

端子収容部１２には、複数本の端子金具１１が横１列に並べて収容される。各端子金具１１は、端子収容部１２に後方から挿入され、ランス１４に係止され離脱が規制される。端子収容部１２の後部には、各電線Ｗに嵌着されたゴム栓１５によって個別にシールされるシールタワー部１６が設けられている。シールタワー部１６は、図４に示すように、端子収容部１２の後部に左右方向に並んで設けられ、略中央に位置する一対のシールタワー部１６の上側に、後述するロックアーム１８の過度の撓み変形を防ぐ過度撓み防止部１７が立設されている。 In the terminal accommodating portion 12, a plurality of terminal fittings 11 are accommodated in a horizontal row. Each terminal fitting 11 is inserted into the terminal accommodating portion 12 from the rear, and is locked to the lance 14 to be separated. At the rear of the terminal accommodating portion 12, a seal tower portion 16 is provided that is individually sealed by a rubber plug 15 fitted to each electric wire W. As shown in FIG. 4, the seal tower portion 16 is provided side by side in the left-right direction at the rear portion of the terminal accommodating portion 12, and is placed on the upper side of the pair of seal tower portions 16 positioned substantially in the center. The excessive bending prevention part 17 which prevents the bending deformation of is standingly provided.

そして、コネクタハウジング１０には、一対のコネクタハウジング１０，５０の正規嵌合時に、図１に示すように、相手側コネクタハウジング５０に設けられたロック部５４に係止可能なロックアーム１８が備えられている。ロックアーム１８は、端子収容部１２の上面側に設けられており、筒状嵌合部１３の上壁は、前端部のみを残すようにしてロックアーム１８の形成部位が切り欠かれた形態をなしている。また、コネクタハウジング１０のうちロックアーム１８の左右両側には、一対の保護壁１９が互いに略平行をなして立設されている（図４参照）。 The connector housing 10 is provided with a lock arm 18 that can be locked to a lock portion 54 provided in the mating connector housing 50 as shown in FIG. 1 when the pair of connector housings 10 and 50 are properly fitted. It has been. The lock arm 18 is provided on the upper surface side of the terminal accommodating portion 12, and the upper wall of the cylindrical fitting portion 13 has a form in which the formation portion of the lock arm 18 is cut out so as to leave only the front end portion. There is no. In addition, a pair of protective walls 19 are provided upright on the left and right sides of the lock arm 18 in the connector housing 10 (see FIG. 4).

ロックアーム１８は、全体として、前後方向に長い略水平（端子収容部１２の上面と略平行）な板状をなしている。ロックアーム１８は、図１に示すように、端子収容部１２の上面に立設された脚部２１によって前後方向における略中央部を支持され、脚部２１を略支点としてシーソー状に傾動変位し得るようになっている。 The lock arm 18 as a whole has a plate shape that is substantially horizontal (substantially parallel to the upper surface of the terminal accommodating portion 12) that is long in the front-rear direction. As shown in FIG. 1, the lock arm 18 is supported at a substantially central portion in the front-rear direction by a leg portion 21 erected on the upper surface of the terminal accommodating portion 12, and is tilted and displaced in a seesaw shape with the leg portion 21 as a substantial fulcrum. To get.

ロックアーム１８には、上下方向に貫通した形態で溝部２２が形成されている。溝部２２は、図３に示すように、ロックアーム１８の幅方向における中央部に形成され、前後方向に直線状をなして延びている。溝部２２の幅寸法は全長にわたって略一定とされている。 A groove 22 is formed in the lock arm 18 so as to penetrate in the vertical direction. As shown in FIG. 3, the groove portion 22 is formed at the center portion in the width direction of the lock arm 18 and extends linearly in the front-rear direction. The width of the groove 22 is substantially constant over the entire length.

ロックアーム１８の前端部（溝部２２よりも前方の部分）には、図１に示すように、相手側コネクタハウジング５０のロック部５４に係止可能なロック係止部２３が設けられている。ロック係止部２３の前面２３Ｆは、ロック部５４の前面５４Ｆと同等の勾配で傾斜する傾斜面とされ、また、ロック係止部２３の上面２３Ｕは、略水平（前後方向に対して略平行）で平坦な面とされている。そして、ロック係止部２３の前端部（ロック係止部２３の上面２３Ｕと前面２３Ｆとの間の角部）は、丸みを帯びた形態のエッジ部２３Ｅとされている。なお、ロック係止部２３の後面（溝部２２に臨む面）２３Ｂについては、後ほど詳しく説明する。 As shown in FIG. 1, a lock engagement portion 23 that can be engaged with the lock portion 54 of the mating connector housing 50 is provided at the front end portion (a portion in front of the groove portion 22) of the lock arm 18. The front surface 23F of the lock engaging portion 23 is an inclined surface that is inclined with the same inclination as the front surface 54F of the lock portion 54, and the upper surface 23U of the lock engaging portion 23 is substantially horizontal (substantially parallel to the front-rear direction). ). The front end portion of the lock engaging portion 23 (the corner portion between the upper surface 23U and the front surface 23F of the lock engaging portion 23) is a rounded edge portion 23E. The rear surface (the surface facing the groove 22) 23B of the lock engaging portion 23 will be described in detail later.

ロックアーム１８の左右両側には、図４に示すように、係止凸部２４が突出して設けられている。係止凸部２４は、後述する嵌合検知部材３０に設けられた係止凹部３６に入り込んで上下方向に係止可能とされている。係止凸部２４は、図３に示すように、ロックアーム１８の略後半部分に、前後方向に延びて形成されている。 On both the left and right sides of the lock arm 18, as shown in FIG. The locking projection 24 enters a locking recess 36 provided in the fitting detection member 30 described later and can be locked in the vertical direction. As shown in FIG. 3, the locking projection 24 is formed to extend in the front-rear direction at a substantially second half portion of the lock arm 18.

ロックアーム１８の後端部（溝部２２よりも後方の部分）には、ロック係止部２３とロック部５４との係止を解除する際に押圧操作される押圧操作部２５が設けられている。押圧操作部２５は薄い板状をなしている。 At the rear end portion of the lock arm 18 (the portion behind the groove portion 22), a pressing operation portion 25 that is pressed when releasing the engagement between the lock engagement portion 23 and the lock portion 54 is provided. . The pressing operation unit 25 has a thin plate shape.

嵌合検知部材３０は合成樹脂製であり、図７に示すように、全体として前後方向に若干長いホームベース形状（前端部が次第に幅狭になるとともに後側部分が略方形状）をなす本体部３１を有している。本体部３１は概ね平板状をなしている。 The fitting detection member 30 is made of synthetic resin, and as shown in FIG. 7, the main body has a home base shape that is slightly longer in the front-rear direction as a whole (the front end portion is gradually narrowed and the rear portion is substantially square). A portion 31 is provided. The main body 31 is substantially flat.

嵌合検知部材３０の後端部には、図１０に示すように、本体部３１の後端に沿って上方に立設された壁状をなす第１後壁部３２と、本体部３１の後端に沿って下方に垂下された壁状をなす第２後壁部３３とが設けられている。第１後壁部３２および第２後壁部３３は、いずれも前後方向に対して略直角をなしている。なお、嵌合検知部材３０の後面は、第１後壁部３２、本体部３１および第２後壁部３３が段差なく連なって平坦な面とされている。 As shown in FIG. 10, at the rear end portion of the fitting detection member 30, a first rear wall portion 32 having a wall shape standing upward along the rear end of the main body portion 31, and the main body portion 31. A second rear wall portion 33 having a wall shape hanging downward along the rear end is provided. Both the first rear wall portion 32 and the second rear wall portion 33 are substantially perpendicular to the front-rear direction. In addition, the rear surface of the fitting detection member 30 is a flat surface in which the first rear wall portion 32, the main body portion 31, and the second rear wall portion 33 are connected without any step.

嵌合検知部材３０の上面には、左右両側縁に沿って一対の突条部３４が立設されている（図８参照）。一対の突条部３４は、本体部３１の略後半部分に設けられ、その後端部は第１後壁部３２の左右両端部に連なっている。 On the upper surface of the fitting detection member 30, a pair of protrusions 34 are erected along the left and right side edges (see FIG. 8). The pair of protrusions 34 are provided in the substantially second half of the main body 31, and the rear ends thereof are connected to the left and right ends of the first rear wall 32.

嵌合検知部材３０の下面には、図７に示すように、左右両側縁に沿って一対のガイド部３５が垂下されている。一対のガイド部３５は、本体部３１の略後半部分に設けられた壁状をなしている。各ガイド部３５の厚さ寸法（左右方向の寸法）は、保護壁１９とロックアーム１８との間の左右方向の間隔に整合した寸法とされている。 As shown in FIG. 7, a pair of guide portions 35 are suspended from the lower surface of the fitting detection member 30 along the left and right side edges. The pair of guide portions 35 has a wall shape provided in a substantially second half portion of the main body portion 31. The thickness dimension (the dimension in the left-right direction) of each guide portion 35 is a dimension that matches the distance in the left-right direction between the protective wall 19 and the lock arm 18.

一対のガイド部３５の後端部は、第２後壁部３３の左右両端部に連なっており、一対のガイド部３５の高さ寸法と第２後壁部３３の高さ寸法とは同等とされている（図５参照）。一対のガイド部３５の内面（対向面）には、ロックアーム１８の係止凸部２４が入り込み可能な係止凹部３６が形成されている。係止凹部３６は、ガイド部３５の内面に略方形断面を有して凹んだ溝状をなし、前後方向に貫通している。 The rear end portions of the pair of guide portions 35 are connected to the left and right end portions of the second rear wall portion 33, and the height dimension of the pair of guide portions 35 is equal to the height dimension of the second rear wall portion 33. (See FIG. 5). A locking recess 36 into which the locking projection 24 of the lock arm 18 can enter is formed on the inner surfaces (opposing surfaces) of the pair of guide portions 35. The locking recess 36 has a recessed groove shape having a substantially square cross section on the inner surface of the guide portion 35 and penetrates in the front-rear direction.

一対のガイド部３５の下面には、図５に示すように、突出リブ３７がそれぞれ突設されている。一対の突出リブ３７は、図７に示すように、一対のガイド部３５の外側面（対向面と反対側の面）に沿って前後方向に延びている。突出リブ３７は、ガイド部３５の略後半部分に形成されている。 As shown in FIG. 5, projecting ribs 37 project from the lower surfaces of the pair of guide portions 35. As shown in FIG. 7, the pair of protruding ribs 37 extend in the front-rear direction along the outer surfaces (surfaces opposite to the facing surfaces) of the pair of guide portions 35. The protruding rib 37 is formed in a substantially second half portion of the guide portion 35.

嵌合検知部材３０の略後半部分（以後、後部３８と称する）は、図６に示すように、上面側に一対の突条部３４および第１後壁部３２が設けられるとともに、下面側に一対のガイド部３５および第２後壁部３３が設けられることで、略前半部分に比して高い剛性を有している。そして、嵌合検知部材３０のうち前後方向における中間部であって後部３８よりも前側の部分は、全幅にわたって薄い平板状をなす平板部３９とされている。 As shown in FIG. 6, a substantially rear half portion of the fitting detection member 30 (hereinafter referred to as a rear portion 38) is provided with a pair of protrusions 34 and a first rear wall portion 32 on the upper surface side, and on the lower surface side. By providing the pair of guide portions 35 and the second rear wall portion 33, the guide portion 35 and the second rear wall portion 33 have high rigidity as compared with the substantially first half portion. A portion of the fitting detection member 30 that is an intermediate portion in the front-rear direction and that is in front of the rear portion 38 is a flat plate portion 39 that has a thin flat plate shape over the entire width.

嵌合検知部材３０には、ロックアーム１８に形成された溝部２２の前端部および後端部にそれぞれ係止することで嵌合検知部材３０の移動を規制する一対の係止アーム４１，４３が、前後に並んで設けられている。 The fitting detection member 30 has a pair of locking arms 41 and 43 that regulate the movement of the fitting detection member 30 by being locked to the front end portion and the rear end portion of the groove portion 22 formed in the lock arm 18 respectively. , Provided side by side.

一対の係止アーム４１，４３のうち前側の係止アーム（以後、第１アーム４１と称する）は、本体部３１の略前半部分によって構成されている。第１アーム４１は、全体として前端に向かって次第に幅狭となる略台形の薄い板状をなし、本体部３１の前後方向における中央部を略支点として上下方向に弾性変位可能とされている（図１１参照）。なお、第１アーム４１の上面における前端部は、前方に向かって下がる傾斜をなし、第１アーム４１の下面における後述する第１係止部４２と平板部３９との間の部分は、後方に向かって上る緩い傾斜をなしている。 A front locking arm (hereinafter referred to as the first arm 41) of the pair of locking arms 41 and 43 is constituted by a substantially front half portion of the main body 31. The first arm 41 as a whole has a substantially trapezoidal thin plate shape that gradually becomes narrower toward the front end, and can be elastically displaced in the vertical direction with the central portion in the front-rear direction of the main body 31 as a substantially fulcrum ( FIG. 11). The front end portion on the upper surface of the first arm 41 is inclined downward and the portion between the later-described first locking portion 42 and the flat plate portion 39 on the lower surface of the first arm 41 is rearward. It has a gentle slope going up.

第１アーム４１の前端部には、図１０に示すように、嵌合検知部材３０が初期位置に配されているときにロックアーム１８に設けられたロック係止部２３に後方から係止して嵌合検知部材３０の前進を規制する第１係止部（嵌合検知部材３０に設けられた係止部）４２が下方に突出して設けられている。第１係止部４２は、嵌合検知部材３０が検知位置に配されているときには、図１に示すように、ロック係止部２３に前方から係止して嵌合検知部材３０の後進を規制する。 As shown in FIG. 10, the front end portion of the first arm 41 is engaged with a lock engagement portion 23 provided on the lock arm 18 from the rear when the fitting detection member 30 is disposed at the initial position. Thus, a first locking portion (locking portion provided on the fitting detection member 30) 42 that restricts the forward movement of the fitting detection member 30 is provided so as to protrude downward. When the fitting detection member 30 is arranged at the detection position, the first locking portion 42 is locked to the lock locking portion 23 from the front as shown in FIG. regulate.

第１係止部４２は、溝部２２の幅寸法と同等の幅寸法を有して、溝部２２に入り込み可能とされている。第１係止部４２の突出寸法（上下方向の寸法）は、ロック係止部２３の上下方向の寸法よりも若干大きくされている。第１係止部４２の下面（突出端面）４２Ｓは略水平で平坦な面とされ、図１１に示すように、第１係止部４２がロック部５４に乗り上げたときに、ロック部５４の上面５４Ｕに当接して支持されるようになっている。なお、ロック係止部２３に後方から係止する第１係止部４２の前面４２Ｆおよび前方から係止する後面４２Ｂについては、後ほど詳しく説明する。 The first locking portion 42 has a width dimension equivalent to the width dimension of the groove portion 22 and can enter the groove portion 22. The protruding dimension (vertical dimension) of the first locking part 42 is slightly larger than the vertical dimension of the lock locking part 23. The lower surface (protruding end surface) 42S of the first locking portion 42 is a substantially horizontal and flat surface, and when the first locking portion 42 rides on the locking portion 54 as shown in FIG. The upper surface 54U is in contact with and supported. Note that the front surface 42F of the first locking portion 42 locked from the rear to the lock locking portion 23 and the rear surface 42B locked from the front will be described in detail later.

一対の係止アーム４１，４３のうち後側の係止アーム（以後、第２アーム４３と称する）は、図７に示すように、嵌合検知部材３０の本体部３１にスリット４４を入れることで形成されている。第２アーム４３は、その前側と左右両側とがスリット４４に囲まれてなり、前端が自由端、後端が固定端とされた片持ち状をなしている。 The rear locking arm (hereinafter referred to as the second arm 43) of the pair of locking arms 41, 43 has a slit 44 in the main body 31 of the fitting detection member 30, as shown in FIG. It is formed with. The second arm 43 has a cantilever shape in which the front side and the left and right sides are surrounded by the slits 44, and the front end is a free end and the rear end is a fixed end.

第２アーム４３は、後部３８における略前半部分に形成され、その前端は、突条部３４およびガイド部３５の前端と前後方向の位置が揃っている。第２アーム４３は、図７に示すように、嵌合検知部材３０の幅方向における中央部に位置し、第２アーム４３の幅寸法（左右方向の寸法）は、第１係止部４２の幅寸法と同等とされている。 The second arm 43 is formed in a substantially front half portion of the rear portion 38, and the front end thereof is aligned with the front ends of the protrusion 34 and the guide portion 35 in the front-rear direction. As shown in FIG. 7, the second arm 43 is located at the center in the width direction of the fitting detection member 30, and the width dimension (the dimension in the left-right direction) of the second arm 43 is the same as that of the first locking portion 42. It is equivalent to the width dimension.

第２アーム４３の前端部には、図１０に示すように、溝部２２の後端部に係止可能な第２係止部４５が、下方に突出して設けられている。第２係止部４５の前面４５Ｆは傾斜面とされ、第２係止部４５の後面４５Ｂは前後方向に対して略垂直をなす切り立った面とされている。なお、第２係止部４５は、第２アーム４３の全幅に形成されている。 As shown in FIG. 10, a second locking portion 45 that can be locked to the rear end portion of the groove portion 22 is provided at the front end portion of the second arm 43 so as to protrude downward. The front surface 45F of the second locking portion 45 is an inclined surface, and the rear surface 45B of the second locking portion 45 is an upright surface that is substantially perpendicular to the front-rear direction. The second locking portion 45 is formed to the full width of the second arm 43.

さて、第１係止部４２が後方から係止するロック係止部２３の後面２３Ｂには、図１０に示すように、段差部が形成されている。段差部は、ロック係止部２３の後面２３Ｂにおいて後方に突出している。段差部の下面は、前後方向に対して略平行（略水平）をなす段差面２６とされ、ロック係止部２３の後面２３Ｂのうち上下方向における中央よりも若干上側に位置している。段差面２６は、一対のコネクタハウジング１０，５０の正規嵌合状態には、図１に示すように、ロック部５４の上面５４Ｕと同等の高さ位置に配される。 Now, as shown in FIG. 10, a stepped portion is formed on the rear surface 23B of the lock engaging portion 23 that the first engaging portion 42 engages from behind. The stepped portion protrudes rearward on the rear surface 23 B of the lock locking portion 23. The lower surface of the step portion is a step surface 26 that is substantially parallel (substantially horizontal) to the front-rear direction, and is located slightly above the center in the vertical direction on the rear surface 23B of the lock engaging portion 23. As shown in FIG. 1, the stepped surface 26 is disposed at a height position equivalent to the upper surface 54 U of the lock portion 54 in the normal fitting state of the pair of connector housings 10 and 50.

ロック係止部２３の後面２３Ｂのうち段差面２６の上下両側には、図１２に示すように、傾斜面が一ずつ形成されている。段差面２６よりも上側に形成された傾斜面（以後、第１上側傾斜面２７と称する）は、ロック係止部２３の上端から下方に向かって次第に後方に突出する後ろ下がりの傾斜をなしている。また、段差面２６よりも下側に形成された傾斜面（以後、第１下側傾斜面２８と称する）は、段差面２６から下方に向かって次第に後方に突出する後ろ下がりの傾斜をなしている。第１下側傾斜面２８は、第１上側傾斜面２７よりも緩い勾配で傾き、一対のコネクタハウジング１０，５０の正規嵌合状態では、その略全体がロック部５４と前後方向に対向する。 As shown in FIG. 12, one inclined surface is formed on each of the upper and lower sides of the step surface 26 in the rear surface 23B of the lock engaging portion 23. An inclined surface formed on the upper side of the step surface 26 (hereinafter referred to as a first upper inclined surface 27) forms a downwardly downward inclination that protrudes rearward downward from the upper end of the lock engaging portion 23. Yes. In addition, an inclined surface (hereinafter referred to as a first lower inclined surface 28) formed below the step surface 26 has a rearward downward inclination that protrudes rearward from the step surface 26 downward. Yes. The first lower inclined surface 28 is inclined with a gentler slope than the first upper inclined surface 27, and substantially the whole of the pair of connector housings 10, 50 opposes the lock portion 54 in the front-rear direction.

そして、ロック係止部２３の後面２３Ｂの段差部（第１上側傾斜面２７と段差面２６との間）には、前後方向に対して略直角をなす切り立った面（以後、第１切り立ち面２９と称する）が形成されている。第１切り立ち面２９は、段差面２６と略直角をなしている。 Then, a stepped portion (between the first upper inclined surface 27 and the stepped surface 26) of the rear surface 23B of the lock engaging portion 23 is a cut surface (hereinafter referred to as a first cutout) that is substantially perpendicular to the front-rear direction. (Referred to as surface 29). The first cut surface 29 is substantially perpendicular to the step surface 26.

一方、ロック係止部２３に後方から係止する第１係止部４２の前面４２Ｆには、段差部が形成されている。段差部は、第１係止部４２の前面４２Ｆにおいて前方に突出する突出部４６とされている。突出部４６は、第１係止部４２の下端部に設けられ、その上端部と下端部とに傾斜面が形成されている。突出部４６の上端部の傾斜面（以後、第２上側傾斜面４７と称する）は前下がりの傾斜をなし、下端部の傾斜面（以後、第２下側傾斜面４８と称する）は後ろ下がりの傾斜をなしている。第２下側傾斜面４８は、ロック係止部２３の第１上側傾斜面２７と同等の勾配とされている。 On the other hand, a stepped portion is formed on the front surface 42F of the first locking portion 42 locked to the lock locking portion 23 from behind. The step portion is a protruding portion 46 that protrudes forward on the front surface 42 F of the first locking portion 42. The protruding portion 46 is provided at the lower end portion of the first locking portion 42, and an inclined surface is formed at the upper end portion and the lower end portion thereof. An inclined surface (hereinafter referred to as a second upper inclined surface 47) of the upper end portion of the projecting portion 46 has a front-lowering inclination, and an inclined surface (hereinafter referred to as a second lower inclined surface 48) of the lower end portion is lowered rearward. The slope is made. The second lower inclined surface 48 has a gradient equivalent to that of the first upper inclined surface 27 of the lock engaging portion 23.

そして、第１係止部４２の突出部４６のうち第２上側傾斜面４７と第２下側傾斜面４８との間には、前後方向に対して略直角をなす切り立った面（以後、第２切り立ち面４９と称する）が形成されている。 In addition, a protruding surface (hereinafter referred to as a first surface) that is substantially perpendicular to the front-rear direction between the second upper inclined surface 47 and the second lower inclined surface 48 in the protruding portion 46 of the first locking portion 42. (Referred to as two cut surfaces 49).

なお、第１係止部４２の前面４２Ｆのうち突出部４６を除く部分は、前後方向に対して略直角な面とされ、図１０に示すように、嵌合検知部材３０が初期位置に配されているときにロック係止部２３の後面２３Ｂに対向配置される。 The portion of the front surface 42F of the first locking portion 42 excluding the protruding portion 46 is a surface that is substantially perpendicular to the front-rear direction, and the fitting detection member 30 is disposed at the initial position as shown in FIG. In this case, the lock engaging portion 23 is disposed opposite to the rear surface 23B.

また、ロック係止部２３に前方から係止する第１係止部４２の後面４２Ｂは、嵌合検知部材３０に作用する後ろ向きの力によって第１係止部４２を係止解除方向（上方）へ変位させる傾斜面とされている。第１係止部４２の後面４２Ｂは、下端よりも上端が後方に位置するように後ろ上がりに傾斜している。なお、第１係止部４２の後面４２Ｂの上端部にロック係止部２３のエッジ部２３Ｅが当接可能となっている。 Further, the rear surface 42B of the first locking portion 42 locked from the front to the lock locking portion 23 causes the first locking portion 42 to be unlocked by a backward force acting on the fitting detection member 30 (upward). It is made into the inclined surface to which it moves to. The rear surface 42B of the first locking portion 42 is inclined upward and rearward so that the upper end is located rearward of the lower end. In addition, the edge part 23E of the lock latching | locking part 23 can contact | abut to the upper end part of the rear surface 42B of the 1st latching | locking part 42. FIG.

次に、本実施例のコネクタＣにおける嵌合作業の一例を説明する。
まず、嵌合検知部材３０を初期位置に配置する。嵌合検知部材３０は、図１０に示すように、第１係止部４２が溝部２２の前端部に係止し、第２係止部４５が溝部２２の後端部に係止することで、前後方向の移動が規制される。また、ガイド部３５の略前半部分がロックアーム１８と保護壁１９との間に差し入れられることで、左右方向の移動が規制される。さらに、係止凹部３６の略前半部分に係止凸部２４が入り込むことで、ロックアーム１８に対して上下方向の変位が規制される。 Next, an example of the fitting operation in the connector C of the present embodiment will be described.
First, the fitting detection member 30 is disposed at the initial position. As shown in FIG. 10, the fitting detection member 30 is configured such that the first locking portion 42 is locked to the front end portion of the groove portion 22, and the second locking portion 45 is locked to the rear end portion of the groove portion 22. The movement in the front-rear direction is restricted. Further, when the substantially first half portion of the guide portion 35 is inserted between the lock arm 18 and the protective wall 19, movement in the left-right direction is restricted. Furthermore, when the locking projection 24 enters the substantially first half of the locking recess 36, the vertical displacement with respect to the lock arm 18 is restricted.

次いで、両コネクタハウジング１０を嵌合する。コネクタハウジング１０の端子収容部１２を相手側コネクタハウジング５０のフード部５３に押し入れる。この嵌合過程では、相手側端子金具５１のタブ部が端子金具１１の接続部に次第に挿入される。また、ロック係止部２３の前面２３Ｆとロック部５４の前面５４Ｆとが当接し、ロック係止部２３がロック部５４の上方へ乗り上がりつつロックアーム１８が斜めに弾性変位し、嵌合検知部材３０もロックアーム１８と一体となって傾動変位する。 Next, both connector housings 10 are fitted. The terminal housing portion 12 of the connector housing 10 is pushed into the hood portion 53 of the mating connector housing 50. In this fitting process, the tab portion of the mating terminal fitting 51 is gradually inserted into the connection portion of the terminal fitting 11. Further, the front surface 23F of the lock engaging portion 23 and the front surface 54F of the lock portion 54 come into contact with each other, and the lock arm 18 is elastically displaced obliquely while the lock engaging portion 23 rides above the lock portion 54, thereby detecting the fitting. The member 30 is also tilted and displaced integrally with the lock arm 18.

このコネクタＣの半嵌合の状態（両コネクタハウジング１０が正規嵌合に至っていない半嵌合状態）では、嵌合検知部材３０の第１係止部４２とロック係止部２３との係止状態が保持されるので、嵌合検知部材３０を検知位置へ移動することはできない。 When the connector C is in a half-fitted state (a half-fitted state in which both the connector housings 10 have not yet been properly fitted), the engagement between the first locking part 42 and the lock locking part 23 of the fitting detection member 30 is achieved. Since the state is maintained, the fitting detection member 30 cannot be moved to the detection position.

そして、図１１に示すように、コネクタＣが正規の嵌合状態に至ると、相手側端子金具５１と端子金具１１とが正規の接続状態になる。また、ロック係止部２３がロック部５４を乗り越えてロックアーム１８が弾性復帰し、ロック係止部２３の後面２３Ｂとロック部５４の後面５４Ｂとが前後方向に対向配置されて、両コネクタハウジング１０，５０が正規の嵌合状態にロックされる。このとき、嵌合検知部材３０の第１係止部４２がロック部５４の上面５４Ｕに乗り上がって上方（係止解除方向）に変位し、第１アーム４１は斜めに弾性変形した状態になる。 Then, as shown in FIG. 11, when the connector C reaches a proper fitting state, the mating terminal fitting 51 and the terminal fitting 11 are in a regular connection state. Further, the lock engaging portion 23 gets over the lock portion 54, and the lock arm 18 is elastically restored, and the rear surface 23B of the lock engaging portion 23 and the rear surface 54B of the lock portion 54 are arranged opposite to each other in the front-rear direction, so that both connector housings 10 and 50 are locked in a proper fitting state. At this time, the first locking portion 42 of the fitting detection member 30 rides on the upper surface 54U of the locking portion 54 and is displaced upward (in the unlocking direction), and the first arm 41 is elastically deformed obliquely. .

そして、第１係止部４２がロック係止部２３に対して係止解除方向に変位した状態では、図１２に示すように、第１係止部４２の突出部４６がロック係止部２３の後面２３Ｂと前後方向に対向する。詳しくは、第１係止部４２の第２切り立ち面４９がロック係止部２３の第１上側傾斜面２７と同等の高さ位置に配されて前後方向に対向配置され、第１係止部４２の第２下側傾斜面４８が、ロック係止部２３の第１切り立ち面２９と同等の高さ位置に配されて前後方向に対向配置される。 Then, in a state where the first locking portion 42 is displaced in the locking release direction with respect to the lock locking portion 23, as shown in FIG. 12, the protruding portion 46 of the first locking portion 42 is the lock locking portion 23. It faces the rear surface 23B in the front-rear direction. Specifically, the second cut surface 49 of the first locking portion 42 is disposed at a height position equivalent to the first upper inclined surface 27 of the lock locking portion 23 and is opposed to the front-rear direction. The second lower inclined surface 48 of the portion 42 is disposed at a height position equivalent to the first cut surface 29 of the lock engaging portion 23 and is opposed to the front-rear direction.

次に、嵌合検知部材３０を検知位置に移動させる。嵌合検知部材３０の後面を前方に押圧すると、第１係止部４２の第２切り立ち面４９がロック係止部２３の第１上側傾斜面２７に突き当たるとともに、ロック係止部２３の第１切り立ち面２９が第１係止部４２の第２下側傾斜面４８に突き当たる。これにより、嵌合検知部材３０に作用する前向きの力が増し、第１上側傾斜面２７および第２下側傾斜面４８の傾斜によって第１係止部４２が上方に変位し、第２下側傾斜面４８と第１上側傾斜面２７とが当接して第１係止部４２が前方へ滑る。そして、第１係止部４２がロック係止部２３の上面２３Ｕを通過して第１アーム４１が下方に弾性復帰し、嵌合検知部材３０は検知位置に至る。この間、作業者は、強い抵抗力を感じ、その抵抗力が開放されて軽くなったという手応えがある。そして、図１に示すように、第１係止部４２の後面４２Ｂとロック係止部２３のエッジ部２３Ｅとが前後方向に係止するとともに、嵌合検知部材３０の第２後壁部３３がロックアーム１８の後端に突き当たることによって、嵌合検知部材３０は前後方向の移動が規制された状態になる。
以上により、コネクタＣの嵌合作業が完了する。 Next, the fitting detection member 30 is moved to the detection position. When the rear surface of the fitting detection member 30 is pressed forward, the second cut surface 49 of the first locking portion 42 abuts against the first upper inclined surface 27 of the lock locking portion 23, and the first of the lock locking portion 23. One cut surface 29 abuts against the second lower inclined surface 48 of the first locking portion 42. Accordingly, a forward force acting on the fitting detection member 30 is increased, and the first locking portion 42 is displaced upward by the inclination of the first upper inclined surface 27 and the second lower inclined surface 48, and the second lower side. The inclined surface 48 and the first upper inclined surface 27 come into contact with each other, and the first locking portion 42 slides forward. And the 1st latching | locking part 42 passes the upper surface 23U of the lock | rock latching | locking part 23, the 1st arm 41 elastically returns below, and the fitting detection member 30 reaches a detection position. During this time, the worker feels a strong resistance, and there is a response that the resistance has been released and lightened. As shown in FIG. 1, the rear surface 42 B of the first locking portion 42 and the edge portion 23 E of the lock locking portion 23 are locked in the front-rear direction, and the second rear wall portion 33 of the fitting detection member 30. As a result, the fitting detection member 30 is restricted from moving in the front-rear direction.
Thus, the connector C fitting operation is completed.

なお、嵌合検知部材３０が検知位置に保持された状態では、ロックアーム１８の上面の略全体が嵌合検知部材３０で覆われるとともに、嵌合検知部材３０の突出リブ３７が過度撓み防止部１７に上方から当接している。したがって、嵌合検知部材３０およびロックアーム１８のロック解除方向の変位（後端部が下方に下がる変位）が規制され、不用意なロック解除を防ぐことができる。 In the state where the fitting detection member 30 is held at the detection position, substantially the entire upper surface of the lock arm 18 is covered with the fitting detection member 30, and the protruding rib 37 of the fitting detection member 30 is the excessive deflection preventing portion. 17 abuts from above. Therefore, displacement in the unlocking direction of the fitting detection member 30 and the lock arm 18 (displacement in which the rear end portion is lowered) is restricted, and inadvertent unlocking can be prevented.

次に、本実施例のコネクタＣにおける離脱作業の一例を説明する。
まず、嵌合検知部材３０を検知位置から初期位置に引き戻す。第１後壁部３２に後ろ向きの力を加えると、第１係止部４２の後面４２Ｂの傾斜によって第１係止部４２が上方に変位し、ロック係止部２３の上面２３Ｕを通過してロック部５４の上面５４Ｕに支持された状態になる（図１１参照）。また、第２係止部４５が溝部２２の後端部に係止することで、それ以上の後進が阻まれる。こうして嵌合検知部材３０が初期位置に引き戻される。嵌合検知部材３０が初期位置に配された状態では、突出リブ３７が過度撓み防止部１７から後方に外れ、嵌合検知部材３０およびロックアーム１８のロック解除方向の変位が許容される。 Next, an example of the detachment work in the connector C of the present embodiment will be described.
First, the fitting detection member 30 is pulled back from the detection position to the initial position. When a backward force is applied to the first rear wall portion 32, the first locking portion 42 is displaced upward by the inclination of the rear surface 42B of the first locking portion 42, and passes through the upper surface 23U of the lock locking portion 23. It will be in the state supported by the upper surface 54U of the lock | rock part 54 (refer FIG. 11). Moreover, the 2nd latching | locking part 45 latches to the rear-end part of the groove part 22, and the reverse drive beyond that is blocked | prevented. Thus, the fitting detection member 30 is pulled back to the initial position. In a state in which the fitting detection member 30 is disposed at the initial position, the protruding rib 37 is disengaged rearward from the excessive deflection preventing portion 17 and the displacement of the fitting detection member 30 and the lock arm 18 in the unlocking direction is allowed.

次に、両コネクタハウジング１０を離脱する。初期位置に引き戻された嵌合検知部材３０の後端部を下方に押圧すると、ロックアーム１８が後ろ下がりに傾いてロック係止部２３が上方に変位し、ロック部５４との係止が解除される。そのまま、両コネクタハウジング１０，５０を引き離すと、第１係止部４２がロック部５４を通過して第１アーム４１が弾性復帰し、続いてロックアーム１８のロック係止部２３がロック部５４を通過してロックアーム１８が弾性復帰し、両コネクタハウジング１０，５０が離脱される。
以上により、コネクタＣの離脱作業が完了する。 Next, both connector housings 10 are detached. When the rear end portion of the fitting detection member 30 pulled back to the initial position is pressed downward, the lock arm 18 is tilted backward and the lock engagement portion 23 is displaced upward, and the engagement with the lock portion 54 is released. Is done. When the connector housings 10 and 50 are pulled apart as they are, the first locking portion 42 passes through the lock portion 54 and the first arm 41 is elastically restored. Subsequently, the lock locking portion 23 of the lock arm 18 is locked. Then, the lock arm 18 is elastically restored and the connector housings 10 and 50 are detached.
As described above, the detaching operation of the connector C is completed.

次に、上記のように構成された実施例の作用および効果について説明する。
本実施例のコネクタＣは、互いに嵌合可能な一対のコネクタハウジング１０，５０を備え、そのうち一方のコネクタハウジング１０には、一対のコネクタハウジング１０，５０の正規嵌合時に、相手側コネクタハウジング５０に設けられたロック部５４に係止可能なロックアーム１８が設けられている。また、一方のコネクタハウジング１０には、一対のコネクタハウジング１０，５０の正規嵌合時には初期位置から検知位置への前進が可能で、半嵌合時には初期位置から検知位置への前進が不可能であるようにして嵌合検知部材３０が装着されている。そして、嵌合検知部材３０には、一対のコネクタハウジング１０，５０の半嵌合時にはロックアーム１８に設けられたロック係止部２３に後方から係止して嵌合検知部材３０の前進を規制し、一対のコネクタハウジング１０，５の正規嵌合時にはロック部５４に押されて係止解除方向に変位する第１係止部４２が設けられ、第１係止部４２およびロック係止部２３には、第１係止部４２が係止解除方向に変位した状態で相手側の係止部４２，２３と前後方向に対向する第１切り立ち面２９および第２切り立ち面４９が形成されている。 Next, operations and effects of the embodiment configured as described above will be described.
The connector C according to the present embodiment includes a pair of connector housings 10 and 50 that can be fitted to each other, and one of the connector housings 10 includes a mating connector housing 50 when the pair of connector housings 10 and 50 are properly fitted. A lock arm 18 is provided which can be locked to a lock portion 54 provided in the frame. Further, one connector housing 10 can advance from the initial position to the detection position when the pair of connector housings 10 and 50 are properly fitted, and cannot advance from the initial position to the detection position when half-fitted. The fitting detection member 30 is mounted in a manner. The fitting detection member 30 is locked from behind to a lock locking portion 23 provided on the lock arm 18 when the pair of connector housings 10 and 50 are half-fitted to restrict the forward movement of the fitting detection member 30. When the pair of connector housings 10 and 5 are properly fitted, a first locking portion 42 that is pushed by the lock portion 54 and displaced in the locking release direction is provided, and the first locking portion 42 and the lock locking portion 23 are provided. Are formed with a first cut surface 29 and a second cut surface 49 that face the mating lock portions 42 and 23 in the front-rear direction with the first lock portion 42 displaced in the lock release direction. ing.

この構成によれば、一対のコネクタハウジング１０，５０の正規嵌合時に嵌合検知部材３０を初期位置から検知位置に移動させようとすると、ロック係止部２３および第１係止部４２に形成された第１切り立ち面２９および第２切り立ち面４９が相手側の係止部２３，４２に突き当たり、それにより嵌合検知部材３０を検知位置に押す力が増して嵌合検知部材３０が勢いよく検知位置に至るから、嵌合検知部材３０を確実に検知位置に移動することができる。 According to this configuration, when the fitting detection member 30 is moved from the initial position to the detection position when the pair of connector housings 10 and 50 are normally fitted, the lock engagement portion 23 and the first engagement portion 42 are formed. The first cut surface 29 and the second cut surface 49 thus abutted against the locking portions 23 and 42 on the other side, thereby increasing the force for pushing the fitting detection member 30 to the detection position, and the fitting detection member 30 Since the detection position is vigorously reached, the fitting detection member 30 can be reliably moved to the detection position.

また、第１係止部４２およびロック係止部２３のうち、第１切り立ち面２９および第２切り立ち面４９と前後方向に対向する相手側の第１係止部４２およびロック係止部２３に、第１係止部４２を係止解除方向に滑らせる第１上側傾斜面２７および第２下側傾斜面４８が形成されている。 Further, of the first locking portion 42 and the lock locking portion 23, the first locking portion 42 and the lock locking portion on the opposite side that face the first and second cut surfaces 29 and 49 in the front-rear direction. 23, a first upper inclined surface 27 and a second lower inclined surface 48 that slide the first locking portion 42 in the locking release direction are formed.

このような構成によれば、一対のコネクタハウジング１０，５０の正規嵌合時に嵌合検知部材３０を初期位置から検知位置に移動させようとしたときに第１係止部４２およびロック係止部２３に形成された第２切り立ち面４９および第１切り立ち面２９が相手側のロック係止部２３および第１係止部４２の第１上側傾斜面２７および第２下側傾斜面４８に突き当たった後、その傾斜によって第１係止部４２が滑るから、比較的スムーズに嵌合検知部材３０を検知位置に移動することができる。 According to such a configuration, when the fitting detection member 30 is moved from the initial position to the detection position when the pair of connector housings 10 and 50 are properly fitted, the first locking portion 42 and the lock locking portion are used. 23 are formed on the first upper inclined surface 27 and the second lower inclined surface 48 of the lock engaging portion 23 and the first engaging portion 42 on the other side. After the contact, the first locking portion 42 slides due to the inclination, so that the fitting detection member 30 can be moved to the detection position relatively smoothly.

また、嵌合検知部材３０が検知位置に移動したときには第１係止部４２がロック係止部２３に前方から係止して嵌合検知部材３０の後進を規制するものとされ、第１係止部４２には、嵌合検知部材３０に作用する後ろ向きの力によって第１係止部４２を係止解除方向へ変位させる後面４２Ｂが形成されている。この構成によれば、検知位置に配された嵌合検知部材３０に後ろ向きの力が作用すると、第１係止部４２の後面４２Ｂによって第１係止部４２が係止解除方向に変位するから、嵌合検知部材３０をスムーズに初期位置に移動することができる。 Further, when the fitting detection member 30 is moved to the detection position, the first locking portion 42 is locked to the lock locking portion 23 from the front to restrict the backward movement of the fitting detection member 30. The stop portion 42 is formed with a rear surface 42B that displaces the first locking portion 42 in the locking release direction by a backward force acting on the fitting detection member 30. According to this configuration, when a backward force is applied to the fitting detection member 30 arranged at the detection position, the first locking portion 42 is displaced in the locking release direction by the rear surface 42B of the first locking portion 42. The fitting detection member 30 can be smoothly moved to the initial position.

＜他の実施例＞
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
（１）上記実施例では、溝部２２は上下方向に貫通した形態とされているが、これに限らず、例えば溝部は下面に底壁を有した凹みであってもよい。
（２）上記実施例では、第１アーム４１が全体として前端に向かって次第に幅狭となる台形状をなしているが、これに限らず、第１アーム４１は溝部２２の前端部に係止可能であればよく、例えば第１アームは、前後方向に長い長方形状をなすものとしてもよい。
（３）上記実施例では、一対の係止アーム４１，４３が嵌合検知部材３０の前後に設けられているが、これに限らず、一対の係止アームが嵌合検知部材の左右両側に設けられている場合にも、本発明を適用することができる。
（４）上記実施例では、ロック係止部２３および第１係止部４２のそれぞれに第１切り立ち面２９および第２切り立ち面４９が設けられているが、これに限らず、ロック係止部および第１係止部のいずれか一方のみに切り立った面を設けてもよい。
（５）上記実施例では、ロック係止部２３および第１係止部４２のそれぞれに第１上側傾斜面２７および第２下側傾斜面４８が設けられているが、これに限らず、ロック係止部および第１係止部のいずれか一方のみに傾斜面を設けてもよい。
（６）上記実施例では、第１係止部４２の後面４２Ｂが傾斜面とされているが、これに限らず、ロック係止部側に傾斜面を設けてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the said Example, although the groove part 22 was made into the form penetrated to the up-down direction, it is not restricted to this, For example, the groove part may be a dent with the bottom wall on the lower surface.
(2) In the above embodiment, the first arm 41 as a whole has a trapezoidal shape that becomes gradually narrower toward the front end. However, the present invention is not limited to this, and the first arm 41 is locked to the front end portion of the groove portion 22. For example, the first arm may have a long rectangular shape in the front-rear direction.
(3) In the above embodiment, the pair of locking arms 41 and 43 are provided on the front and rear sides of the fitting detection member 30. However, the present invention is not limited to this, and the pair of locking arms is provided on the left and right sides of the fitting detection member. The present invention can also be applied when provided.
(4) In the above embodiment, the first and second locking surfaces 29 and 49 are provided on the lock locking portion 23 and the first locking portion 42, respectively. You may provide the surface which stood only in any one of a stop part and a 1st latching | locking part.
(5) In the above-described embodiment, the first upper inclined surface 27 and the second lower inclined surface 48 are provided in the lock engaging portion 23 and the first engaging portion 42, respectively. You may provide an inclined surface only in any one of a latching | locking part and a 1st latching | locking part.
(6) In the said Example, although the rear surface 42B of the 1st latching | locking part 42 is made into the inclined surface, you may provide not only this but an inclined surface in the lock latching | locking part side.

Ｃ…コネクタ
１０…コネクタハウジング（一方のコネクタハウジング）
１８…ロックアーム
２３…ロック係止部
２７…第１上側傾斜面（傾斜面）
２９…第１切り立ち面（切り立った面）
３０…嵌合検知部材
４２…第１係止部（嵌合検知部材に設けられた係止部）
４２Ｂ…第１係止部の後面（傾斜面）
４８…第２下側傾斜面（傾斜面）
４９…第２切り立ち面（切り立った面）
５０…相手側コネクタハウジング
５４…ロック部 C ... Connector 10 ... Connector housing (one connector housing)
18 ... Lock arm 23 ... Lock engaging part 27 ... First upper inclined surface (inclined surface)
29. First cut surface (cut surface)
30 ... fitting detection member 42 ... 1st latching | locking part (locking part provided in the fitting detection member)
42B: Rear surface (inclined surface) of the first locking portion
48 ... Second lower inclined surface (inclined surface)
49. Second cut surface (cut surface)
50 ... Mating connector housing 54 ... Lock part

Claims

A pair of connector housings that can be fitted together;
A lock arm that is provided on one of the pair of connector housings and can be locked to a lock portion provided on the mating connector housing when the pair of connector housings is properly fitted;
When the pair of connector housings are normally fitted, the one connector housing can be moved forward from the initial position to the detection position, and when half-fitted, the forward movement from the initial position to the detection position is impossible. A fitted fitting detection member;
When the pair of connector housings are half-fitted, the locking engagement part provided on the lock arm is engaged from behind to restrict the forward movement of the fitting detection member, and when the pair of connector housings are normally fitted, A locking portion provided in the fitting detection member that is pushed by the locking portion and is displaced in the locking release direction;
Formed in at least one of the locking portion provided on the fitting detection member or the lock locking portion, and the locking portion provided on the fitting detection member is displaced in the locking release direction. A locking portion provided on the fitting detection member or a stepped portion facing the lock locking portion in the front-rear direction,
Equipped with a connector.

The connector according to claim 1, wherein a stepped surface is formed on the stepped portion so as to be substantially perpendicular to the front-rear direction.

Of the engaging part provided on the fitting detecting member or the engaging part provided on the lock arm, the engaging detecting member is provided on the engaging part on the opposite side facing the slid surface in the front-rear direction. The connector according to claim 2, wherein an inclined surface capable of moving an engaging portion provided in the engaging portion in the unlocking direction is formed.

When the fitting detection member moves to the detection position, a locking portion provided on the fitting detection member is locked to the lock locking portion from the front to restrict the backward movement of the fitting detection member. And
At least one of the engaging portion provided on the fitting detecting member or the locking engaging portion is engaged with the engaging portion provided on the fitting detecting member by a backward force acting on the fitting detecting member. The connector according to any one of claims 1 to 3, wherein an inclined surface that is displaced in a stop release direction is formed.