JP4158686B2 - Lock structure - Google Patents

Lock structure Download PDF

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Publication number
JP4158686B2
JP4158686B2 JP2003392470A JP2003392470A JP4158686B2 JP 4158686 B2 JP4158686 B2 JP 4158686B2 JP 2003392470 A JP2003392470 A JP 2003392470A JP 2003392470 A JP2003392470 A JP 2003392470A JP 4158686 B2 JP4158686 B2 JP 4158686B2
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Japan
Prior art keywords
lock
locking
housing
retainer
receiving portion
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Expired - Fee Related
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JP2003392470A
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JP2005158347A (en
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康孝 松本
和紀 山下
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2003392470A priority Critical patent/JP4158686B2/en
Priority to DE200410055444 priority patent/DE102004055444B4/en
Priority to CNB2004100952646A priority patent/CN100372184C/en
Publication of JP2005158347A publication Critical patent/JP2005158347A/en
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Publication of JP4158686B2 publication Critical patent/JP4158686B2/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4364—Insertion of locking piece from the front
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/436—Securing a plurality of contact members by one locking piece or operation
    • H01R13/4361—Insertion of locking piece perpendicular to direction of contact insertion
    • H01R13/4362—Insertion of locking piece perpendicular to direction of contact insertion comprising a temporary and a final locking position

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  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

本発明は、コネクタハウジングに対するリテーナのロック構造に関する。   The present invention relates to a retainer locking structure for a connector housing.

従来、リテーナ付きのコネクタとしては、以下の特許文献１に記載のものが知られている。このものは、端子金具を挿入可能な複数のキャビティを有するハウジング部を備え、このハウジング部に対してリテーナが端子金具の挿抜を許容する仮係止位置と端子金具を抜け止めする本係止位置との間を移動可能に組み付けられている。
端子収容部の周壁にはリブが設けられ、リテーナには突起が設けられており、この突起とリブとが係合することにより、リテーナが仮係止位置と本係止位置のいずれかの位置に留め置かれるようになっており、且つ、仮係止位置と本係止位置との間を移動する際にはリテーナの撓み変形をともないながら突起がリブを乗り越えるようになっている。
欧州特許出願公開第０６７８９３７号明細書 Conventionally, as a connector with a retainer, a connector described in Patent Document 1 below is known. This is provided with a housing portion having a plurality of cavities into which the terminal fittings can be inserted, and a temporary locking position where the retainer allows the terminal fittings to be inserted and removed, and a main locking position where the terminal fittings are prevented from coming off. It is assembled to be movable between.
A rib is provided on the peripheral wall of the terminal accommodating portion, and a protrusion is provided on the retainer. When the protrusion and the rib are engaged with each other, the retainer is positioned at either the temporary locking position or the main locking position. In addition, when moving between the temporary locking position and the main locking position, the protrusions get over the ribs while the retainer is bent and deformed.
European Patent Application No. 0678937

上記の場合、突起とリブとによるロック構造が冶具の届かない奥まった位置に設けられていることから、例えば、本係止位置におけるリテーナのロックを解除するには、作業者がリテーナの前面部分を持って手作業でリテーナを仮係止位置側へ向けて押し込む必要があった。そうすると、相当な操作力が必要とされて作業負担が大きくなるばかりか、押し込みにともない突起やリブが磨耗したりしてロックの信頼性を充分に確保し得ないという問題があった。   In the above case, since the lock structure by the protrusion and the rib is provided at a deep position where the jig does not reach, for example, in order to unlock the retainer at the main locking position, the operator must remove the front portion of the retainer. It was necessary to manually push the retainer toward the temporary locking position. In this case, there is a problem that not only a considerable operating force is required and the work load becomes large, but also the protrusions and ribs are worn as they are pushed in, so that the reliability of the lock cannot be sufficiently secured.

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、ロックの信頼性を確保することを目的とする。   The present invention has been completed based on the above situation, and an object thereof is to ensure the reliability of the lock.

上記の目的を達成するための手段として、請求項１の発明は、コネクタハウジングの前面に対向する前壁部と、この前壁部に連なるとともに前記コネクタハウジングの内部に進入可能とされて同内部に挿入された端子金具を抜け止めする係止部とを備え、前記前壁部が前記コネクタハウジングの前面に沿って移動することで前記係止部が前記端子金具を係止するロック位置に至るリテーナのロック構造であって、前記コネクタハウジングの前面にはロック部が設けられ、前記前壁部には、前記リテーナの移動途中で撓み変形して前記ロック部に乗り上げられ、前記係止部がロック位置に至るとともに弾性復元して前記ロック部に係止されるロック受け部が露出して設けられ、前記ロック受け部は、ロック孔を保有しており、前記係止部がロック位置に至ったときに、このロック孔に前記ロック部が嵌り込むようになっており、前記コネクタハウジングの前面には、隣接する端子金具同士を短絡させるショート端子を収容するショート端子装着部が開口して形成され、前記前壁部には、前記ロック位置にて前記ショート端子装着部と連通する透孔が形成され、前記ロック孔は、前記透孔と連通している構成としたところに特徴を有する。 As a means for achieving the above object, the invention of claim 1 includes a front wall portion facing the front surface of the connector housing, a front wall portion connected to the front wall portion, and capable of entering the inside of the connector housing. And a locking portion for preventing the terminal fitting inserted into the connector housing, and the front wall portion moves along the front surface of the connector housing, whereby the locking portion reaches a locking position for locking the terminal fitting. a lock structure of the retainer, said the front of the connector housing locking portion is provided, wherein the front wall, is riding on the locking portion and deformed in the middle movement of the retainer, the locking portion There is provided to expose the lock receiving portion to be engaged with the locking portion is elastically restored along with reaching the locked position, the lock receiving portion is holding the lock hole, the locking portion is locked When the position is reached, the lock portion is fitted into the lock hole, and a short terminal mounting portion for accommodating a short terminal for short-circuiting adjacent terminal fittings is opened on the front surface of the connector housing. The front wall portion is formed with a through hole that communicates with the short terminal mounting portion at the lock position, and the lock hole communicates with the through hole. Have

請求項２の発明は、請求項１に記載のものにおいて、前記ロック部と前記ロック受け部との係止状態が前記ロック孔を通して外部から視認可能となっているところに特徴を有する。 The invention of claim 2 has the one described in claim 1, characterized where the locking state between the front Symbol lock portion and the lock receiving portion is visible from the outside through the locking hole.

請求項３の発明は、請求項１または請求項２に記載のものにおいて、前記ロック受け部は、片持ち状に設けられ、その自由端側には冶具が係合可能とされ、この冶具は、前記ロック受け部と前記ロック部の間に外側方から分け入って両間の係合を解く解除部を備え、前記解除部には、前記ロック受け部の撓み変形動作を誘導する解除案内面が設けられているところに特徴を有する。   According to a third aspect of the present invention, in the first or second aspect of the present invention, the lock receiving portion is provided in a cantilever shape, and a jig can be engaged with the free end side thereof. A release guide surface for inducing a bending deformation operation of the lock receiving portion, the release portion being provided between the lock receiving portion and the lock portion from the outside and releasing the engagement therebetween. It is characterized in that is provided.

＜請求項１の発明＞
コネクタハウジングの前面にはロック部が設けられ、前壁部にはリテーナの移動途中で撓み変形しつつロック部に乗り上げられ、係止部がロック位置に至るとともに弾性復元してロック部に係止されるロック受け部が前面に露出して設けられているから、係止部がロック位置にあるときに前方からロック解除用の冶具をロック受け部に係合させ、その状態からロック受け部を撓み変形させることで簡単にロック受け部とロック部とによるロックを解除できる。したがって、作業負担が軽減されるとともにロック受け部やロック部の磨耗が低減されてロックの信頼性を確保できる。また、ロック受け部のロック孔が透孔と連通することにより、ロック受け部の剛性が低下し、ロック受け部の撓み動作の円滑性が保障される。 <Invention of Claim 1>
Lock portion is provided on the front face of the connector housing, the front wall is riding on the lock portion while resiliently deformed in the middle movement of the retainer, engaging the locking portion elastically restoring with the locking portion reaches the locking position Since the lock receiving portion to be stopped is provided exposed on the front surface, when the locking portion is in the lock position, the unlocking jig is engaged with the lock receiving portion from the front, and the lock receiving portion is started from that state. The lock by the lock receiving portion and the lock portion can be easily released by bending and deforming. Therefore, the work load is reduced and the wear of the lock receiving portion and the lock portion is reduced, so that the reliability of the lock can be ensured. Further, since the lock hole of the lock receiving portion communicates with the through hole, the rigidity of the lock receiving portion is reduced, and the smoothness of the bending operation of the lock receiving portion is ensured.

＜請求項２の発明＞
ロック部とロック受け部との係止状態がロック孔を通して外部から視認可能となっているから、ロック状態にあるか否かの検知を簡単かつ確実に行うことができる。 <Invention of Claim 2>
Since the locked state between the lock portion and the lock receiving portion is visible from the outside through the lock hole, it is possible to easily and reliably detect whether or not the lock portion is in the locked state.

＜請求項３の発明＞
冶具の解除部にはロック受け部の撓み変形動作を誘導する解除案内面が設けられているから、この解除案内面に沿って冶具を差し込むことでロック解除動作の円滑性が保障される。 <Invention of Claim 3>
Since the release guide portion for guiding the bending deformation operation of the lock receiving portion is provided in the release portion of the jig, the smoothness of the lock release operation is ensured by inserting the jig along the release guide surface.

本発明の実施形態を図１ないし図１２によって説明する。本実施形態では雌側の防水コネクタに適用した例を示しており、コネクタ１０は、電線５０の端末に固着された雌側端子金具Ｔ（本発明の端子金具）を収容する複数のキャビティ２１が設けられたハウジング本体２０(本発明のコネクタハウジング）と、このハウジング本体２０の周りを覆うようにして設けられたフード部３０とを備えている。フード部３０とハウジング本体２０との間には相手の雄ハウジングのフード部（図示せず）が嵌入されてシール材６０によりシールが取られるとともに、ハウジング本体２０におけるシール材６０の装着位置の前方にはいわゆるサイドタイプのリテーナ７０が組み付けられている。   An embodiment of the present invention will be described with reference to FIGS. In this embodiment, an example applied to a female waterproof connector is shown. The connector 10 has a plurality of cavities 21 that accommodate female terminal fittings T (terminal fittings of the present invention) fixed to the ends of the electric wires 50. A housing main body 20 (connector housing of the present invention) provided and a hood portion 30 provided so as to cover the periphery of the housing main body 20 are provided. A hood portion (not shown) of a mating male housing is fitted between the hood portion 30 and the housing main body 20 so that the seal is taken by the sealing material 60 and the front of the mounting position of the sealing material 60 on the housing main body 20 is taken. A so-called side-type retainer 70 is assembled to the housing.

ハウジング本体２０は、合成樹脂材により略ブロック状に形成され、リテーナ７０が装着される第１ハウジング４０と、その後方に配される第２ハウジング８０とに分割可能となっており、リテーナ７０が第１ハウジング４０に組み付けられたあと第２ハウジング８０に組み付けられるようになっている。   The housing main body 20 is formed in a substantially block shape by a synthetic resin material, and can be divided into a first housing 40 to which the retainer 70 is mounted and a second housing 80 disposed behind the retainer 70. After being assembled to the first housing 40, it is assembled to the second housing 80.

第１ハウジング４０は、図４に示すように、ハウジング本体２０の前半部分を構成するものであって、その内部にはキャビティ２１の前半部分が形成されている。本実施形態の場合、キャビティ２１は、ハウジング本体２０内に上中下３段に分かれて配置されている。第１ハウジング４０には、側方からリテーナ７０が取り付けられ、このリテーナ７０により前面部分が被覆可能とされている。また、第１ハウジング４０には、第２ハウジング８０の係止片８１（後述する）の進入を許容するガイド孔４１が設けられ、このガイド孔４１の孔壁には係止突起４２が設けられている。   As shown in FIG. 4, the first housing 40 constitutes a front half portion of the housing body 20, and a front half portion of the cavity 21 is formed therein. In the case of the present embodiment, the cavity 21 is arranged in three stages of upper, middle and lower in the housing body 20. A retainer 70 is attached to the first housing 40 from the side, and the front surface portion can be covered by the retainer 70. In addition, the first housing 40 is provided with a guide hole 41 that allows a locking piece 81 (described later) of the second housing 80 to enter, and a locking projection 42 is provided on the hole wall of the guide hole 41. ing.

また、第１ハウジング４０には、図６に示すように、ショート端子装着部４３が前面に開口して形成され、このショート端子装着部４３に収容されるショート端子９０によって隣接するキャビティ２１内に収容された雌側端子金具Ｔ同士が短絡されるようになっている。雄ハウジングとの嵌合前には短絡状態が維持されて両雌側端子金具Ｔ間に電位差が生じないようにしてあり、雄ハウジングとの嵌合にともない雄ハウジングの絶縁性突片が雌側端子金具Ｔとショート端子９０との間に入り込むことで短絡状態が解除されるようになっている。   In addition, as shown in FIG. 6, the first housing 40 is formed with a short terminal mounting portion 43 that opens to the front surface, and the short terminal 90 accommodated in the short terminal mounting portion 43 allows the first housing 40 to enter the adjacent cavity 21. The female terminal fittings T accommodated are short-circuited. Prior to mating with the male housing, a short-circuit state is maintained so that no potential difference is generated between the female terminal fittings T, and the insulating protrusion on the male housing is fitted on the female side when mating with the male housing. The short circuit state is canceled by entering between the terminal fitting T and the short terminal 90.

続いて第２ハウジング８０の構造を説明する。第２ハウジング８０は、ハウジング本体２０の後半部分を構成するものであって、その内部にはキャビティ２１の後半部分が形成され、その後端部にはフード部３０の奥壁の付け根部分が接続されている。
第２ハウジング８０のうち上下に位置するキャビティ２１間を仕切る隔壁および上壁もしくは下壁には係止片８１が設けられており（図４参照）、この係止片８１が第１及び第２の両ハウジング４０，８０の嵌合動作にともない第１ハウジング４０のガイド孔４１に嵌入可能とされている。係止片８１の先端部には、第１ハウジング４０の係止突起４２に係合可能な先端爪状の係止受け部８２が設けられている。第２ハウジング８０に対して前方から第１ハウジング４０が装着されると、係止突起４２が係止受け部８２を弾性的に乗り越えて係止受け部８２に係止され、もって第１ハウジング４０が第２ハウジング８０に抜け止めされた状態で組み付けられるようになっている。このようにハウジング本体２０が第１ハウジング４０と第２ハウジング８０とに分割されることにより、リテーナ７０を第１ハウジング４０に組付けた状態から第２ハウジング８０に組み付けることができるので、サイドタイプのリテーナ７０であってもフード部３０にリテーナ装着用の孔を開ける必要がなく、防水面での信頼性を維持できるといったメリットがある。 Next, the structure of the second housing 80 will be described. The second housing 80 constitutes the latter half portion of the housing body 20, and the latter half portion of the cavity 21 is formed therein, and the base portion of the back wall of the hood portion 30 is connected to the rear end portion thereof. ing.
A locking piece 81 is provided on the partition wall and the upper or lower wall partitioning the cavities 21 positioned above and below in the second housing 80 (see FIG. 4). The locking pieces 81 are the first and second locking pieces. The two housings 40 and 80 can be fitted into the guide holes 41 of the first housing 40 in accordance with the fitting operation. At the distal end portion of the locking piece 81, a distal claw-shaped locking receiving portion 82 that can be engaged with the locking projection 42 of the first housing 40 is provided. When the first housing 40 is attached to the second housing 80 from the front, the locking projection 42 elastically climbs over the locking receiving portion 82 and is locked to the locking receiving portion 82, and thus the first housing 40. Is assembled to the second housing 80 in a state of being prevented from coming off. Since the housing body 20 is divided into the first housing 40 and the second housing 80 in this manner, the retainer 70 can be assembled to the second housing 80 from the state of being assembled to the first housing 40. Even if it is the retainer 70 of this, there is no need to open the hole for retainer attachment in the hood part 30, and there exists a merit that the reliability in a waterproof surface can be maintained.

なお、ハウジング本体２０のキャビティ２１には後方から雌側端子金具Ｔが挿入され、この雌側端子金具Ｔに個別に圧着されたゴム栓６５がキャビティ２１の後半部分つまり第２ハウジング８０側のキャビティ２１に嵌め込み可能となっている。また、フード部３０の上壁と下壁とには、レバー収容部３１が設けられ、ここにコの字形をなすレバーの両アーム部（図示せず）が収容可能となっている。   A female terminal fitting T is inserted into the cavity 21 of the housing body 20 from the rear, and a rubber plug 65 that is individually crimped to the female terminal fitting T is a second half portion of the cavity 21, that is, a cavity on the second housing 80 side. 21 can be fitted. The upper and lower walls of the hood portion 30 are provided with a lever accommodating portion 31 in which both arm portions (not shown) of the U-shaped lever can be accommodated.

続いてリテーナ７０の構造を説明する。リテーナ７０は、合成樹脂材により板状に形成され、雌側端子金具Ｔの挿抜を許容する仮係止位置（図２及び図４参照）と、雌側端子金具Ｔを抜け止めする本係止位置（図３及び図５参照）との間を横方向に移動可能とされている。このリテーナ７０は、第１ハウジング４０の前面（ハウジング本体の前面に同）と対向する位置に配される前壁部７１と、この前壁部７１に連なるとともに第１ハウジング４０と第２ハウジング８０との間に挟まれた状態で配される係止部７２とを備えている。   Next, the structure of the retainer 70 will be described. The retainer 70 is formed in a plate shape with a synthetic resin material, and is a temporary locking position (see FIGS. 2 and 4) that allows the female terminal fitting T to be inserted and removed, and a main locking that prevents the female terminal fitting T from coming off. It can be moved laterally between positions (see FIGS. 3 and 5). The retainer 70 includes a front wall portion 71 disposed at a position facing the front surface of the first housing 40 (same as the front surface of the housing main body), and the first housing 40 and the second housing 80 connected to the front wall portion 71. And a locking portion 72 arranged in a state of being sandwiched between the two.

前壁部７１は、図１０に示すように、第１ハウジング４０の前面に対応する形状と大きさで構成され、第１ハウジング４０の前面に沿って移動可能となっている。前壁部７１には、リテーナ７０が本係止位置にあるときに、ハウジング本体２０のキャビティ２１と連通する複数の連通孔７３が形成されるとともに第１ハウジング４０のショート端子装着部４３と連通して前方から雄ハウジングの絶縁性突片を貫通させる複数の透孔７４が形成されている。なお、前壁部７１の前端面とフード部３０の開口面とはほぼ同一平面上に位置するように構成されている。   As shown in FIG. 10, the front wall portion 71 has a shape and a size corresponding to the front surface of the first housing 40, and is movable along the front surface of the first housing 40. The front wall 71 is formed with a plurality of communication holes 73 that communicate with the cavity 21 of the housing body 20 when the retainer 70 is in the final locking position, and communicates with the short terminal mounting portion 43 of the first housing 40. Thus, a plurality of through holes 74 are formed through the insulating protrusion of the male housing from the front. Note that the front end surface of the front wall portion 71 and the opening surface of the hood portion 30 are configured to be located on substantially the same plane.

一方、係止部７２は、図５及び図１２に示すように、前壁部７１の後端面に接続されて後方へ突出しその突出端に雌側端子金具Ｔの顎部Ｔ２を係止可能な係止突部７５を備えて構成されている。係止突部７５は、リテーナ７０が仮係止位置にあるときに、キャビティ２１より外側方の待機位置に退避され、リテーナ７０が本係止位置に達したときに、キャビティ２１内に進入して雌側端子金具Ｔの顎部Ｔ２を係止するロック位置に至るように設定されている。   On the other hand, as shown in FIGS. 5 and 12, the locking portion 72 is connected to the rear end surface of the front wall portion 71 and protrudes rearward, so that the jaw portion T2 of the female terminal fitting T can be locked to the protruding end. A locking projection 75 is provided. When the retainer 70 is in the temporary locking position, the locking projection 75 is retracted to the standby position outside the cavity 21 and enters the cavity 21 when the retainer 70 reaches the final locking position. Thus, it is set so as to reach a lock position for engaging the jaw portion T2 of the female terminal fitting T.

係止部７２の形成位置は、上中下３段に分かれた各キャビティ２１と対応する位置に設けられており、詳しくは、図５に示すように、前壁部７１の後面の中央部においてＴの字形をなす係止部７２の分岐端に設けられた２つの係止突部７５が上段と中段に配された各キャビティ２１と対応してそこに収容される雌側端子金具Ｔを係止するとともに、前壁部７１の後面の下端部においてＬの字形をなす係止部７２の立ち上がり端に設けられた１つの係止突部７５が下段に配されたキャビティ２１と対応してそこに収容される雌側端子金具Ｔを係止するようになっている。   The locking portion 72 is formed at a position corresponding to each of the cavities 21 divided into upper, middle, and lower three stages. Specifically, as shown in FIG. 5, in the central portion of the rear surface of the front wall portion 71. Two locking projections 75 provided at the branch end of the locking portion 72 having a T-shape are engaged with the female terminal fittings T accommodated therein corresponding to the cavities 21 arranged in the upper and middle stages. In addition to stopping, one locking protrusion 75 provided at the rising end of the locking portion 72 having an L-shape at the lower end of the rear surface of the front wall portion 71 corresponds to the cavity 21 disposed in the lower stage. The female terminal fitting T accommodated in the housing is locked.

また、リテーナ７０は、図１２に示すように、前壁部７１の一端部から後方へ突出する側壁７６を備え、この側壁７６が第１ハウジング４０の一側面を被覆した状態でフード部３０の内面と対向して配されている。側壁７６の外側面には前後方向に延びる位置決めリブ７７が設けられ、この位置決めリブ７７は、リテーナ７０が仮係止位置にあるときにフード部３０の内面に設けられた位置決め凹部３２に嵌め込まれるようになっている（図２参照）。   Further, as shown in FIG. 12, the retainer 70 includes a side wall 76 that protrudes rearward from one end of the front wall portion 71, and the side wall 76 covers one side surface of the first housing 40. It is arranged facing the inner surface. A positioning rib 77 extending in the front-rear direction is provided on the outer surface of the side wall 76, and this positioning rib 77 is fitted into a positioning recess 32 provided on the inner surface of the hood portion 30 when the retainer 70 is in the temporary locking position. (See FIG. 2).

さて、リテーナ７０の前壁部７１には、第１ハウジング４０の前面に設けられたロック部４５と弾性的に係合可能なロック受け部７８が外部に露出して設けられている。ロック受け部７８は、前壁部７１において側壁７６が接続される一端部とは反対側となる他端部に平面方向に沿って片持ち状に突出して形成され、前壁部７１の他端部の上下２位置を基端として撓み変形可能とされている。また、ロック受け部７８は、略方形板状をなし、内部に略方形状のロック孔７９を保有することで全体としてコの字形を呈している。ロック孔７９は、透孔７４と連通しており、この連通によりロック受け部７８の基端側の剛性を低下させて撓み変形動作の円滑性を保障している。一方、ロック部４５は、図２及び図３に示すように、略角柱状をなし、第１ハウジング４０の前面においてショート端子装着部４３の外側縁から前方へ突出して設けられている。ロック部４５の一側面は、後述するように、ロック受け部７８の自由端と当接可能な仮係止面４５Ａとされ、ロック部４５の他側面は、ロック受け部７８のロック孔７９の孔縁と当接可能な本係止面４５Ｂとされている。   Now, on the front wall portion 71 of the retainer 70, a lock receiving portion 78 that is elastically engageable with the lock portion 45 provided on the front surface of the first housing 40 is provided to be exposed to the outside. The lock receiving portion 78 is formed to project in a cantilever shape along the plane direction on the other end portion of the front wall portion 71 opposite to the one end portion to which the side wall 76 is connected, and the other end of the front wall portion 71. The upper and lower positions of the part can be bent and deformed. Further, the lock receiving portion 78 has a substantially square plate shape, and has a substantially square-shaped lock hole 79 inside, thereby exhibiting a U-shape as a whole. The lock hole 79 communicates with the through hole 74, and this communication reduces the rigidity of the base end side of the lock receiving portion 78 to ensure the smoothness of the bending deformation operation. On the other hand, as shown in FIGS. 2 and 3, the lock portion 45 has a substantially prismatic shape, and is provided on the front surface of the first housing 40 so as to protrude forward from the outer edge of the short terminal mounting portion 43. As will be described later, one side surface of the lock portion 45 is a temporary locking surface 45A that can come into contact with the free end of the lock receiving portion 78, and the other side surface of the lock portion 45 is a lock hole 79 of the lock receiving portion 78. The main locking surface 45B is capable of coming into contact with the hole edge.

リテーナ７０が仮係止位置にあるときには、前壁部７１の一側縁がフード部３０の内面に当接するとともに、前壁部７１の他側縁におけるロック受け部７８の自由端がロック部４５の仮係止面に当接し、もって前壁部７１がフード部３０とロック部４５とにより幅方向に挟まれた状態で移動規制されるようになっている（図２参照）。この仮係止位置から前壁部７１を第１ハウジング４０の前面に沿って移動させると、ロック受け部７８が撓み変形しつつロック部４５に乗り上げられる。さらに移動させると、ロック受け部７８がロック部４５を乗り越えるとともに弾性復元して元姿勢に戻り、それにともないロック受け部７８のロック孔７９にロック部４５が嵌り込む（図３参照）。このロック動作は、上下２位置の各ロック受け部７８においてほぼ同時に進行するようになっている。   When the retainer 70 is in the temporary locking position, one side edge of the front wall portion 71 contacts the inner surface of the hood portion 30, and the free end of the lock receiving portion 78 at the other side edge of the front wall portion 71 is the lock portion 45. Therefore, the movement of the front wall portion 71 is restricted in a state where the front wall portion 71 is sandwiched between the hood portion 30 and the lock portion 45 (see FIG. 2). When the front wall portion 71 is moved along the front surface of the first housing 40 from the temporary locking position, the lock receiving portion 78 is ridden and deformed and is ridden on the lock portion 45. When further moved, the lock receiving portion 78 gets over the lock portion 45 and is elastically restored to return to the original posture, and the lock portion 45 is fitted into the lock hole 79 of the lock receiving portion 78 (see FIG. 3). This locking operation proceeds almost simultaneously at each of the lock receiving portions 78 at the two upper and lower positions.

次に、本実施形態の作用を説明する。まず、第１ハウジング４０の外側方からリテーナ７０を組み付けて仮係止位置に留め置く。それから、第２ハウジング８０に対して前方から第１ハウジング４０を組み付け、ハウジング本体２０を構成する。続いて、ハウジング本体２０のキャビティ２１に対して後方から電線５０の端末に固着された雌側端子金具Ｔを挿入する。雌側端子金具Ｔを正規の挿入位置まで挿入したら、仮係止位置にあるリテーナ７０を本係止位置側へ移動させる。リテーナ７０を移動させるには、前壁部７１の前面を手指でハウジング本体２０側へ押し付けるようにして前壁部７１をハウジング本体２０の前面に沿って本係止位置側へスライドさせる。リテーナ７０が本係止位置に至ると、リテーナ７０の係止突部７５が雌側端子金具Ｔの顎部Ｔ２を係止して雌側端子金具Ｔが抜け止めされるとともに、リテーナ７０のロック受け部７８がハウジング本体２０のロック部４５に弾性的に係止されて仮係止位置側への移動が規制される。   Next, the operation of this embodiment will be described. First, the retainer 70 is assembled from the outside of the first housing 40 and is kept in the temporary locking position. Then, the first housing 40 is assembled to the second housing 80 from the front to constitute the housing body 20. Subsequently, the female terminal fitting T fixed to the end of the electric wire 50 from behind is inserted into the cavity 21 of the housing body 20. When the female terminal fitting T is inserted to the proper insertion position, the retainer 70 in the temporary locking position is moved to the main locking position side. In order to move the retainer 70, the front wall 71 is slid along the front surface of the housing body 20 toward the main locking position so that the front surface of the front wall 71 is pressed against the housing body 20 with fingers. When the retainer 70 reaches the final locking position, the locking projection 75 of the retainer 70 locks the jaw T2 of the female terminal fitting T to prevent the female terminal fitting T from coming off, and the retainer 70 is locked. The receiving part 78 is elastically locked to the lock part 45 of the housing main body 20, and movement to the temporary locking position side is restricted.

ところで、本係止位置にあるリテーナ７０のロックを解除するには、図１に示すようなロック解除用の冶具１００を用いる。この冶具１００は、リテーナ７０の前面に沿って移動操作されるものであって、その一側縁にロック受け部７８とロック突部４５との間に外側方から分け入って両間の係合を解くための解除部１０１を備えて構成されている。解除部１０１は、図７に示すように、冶具１００の移動操作方向の先方に向かって先端尖鋭状をなす鈍角部１０２を含み、この鈍角部１０２を先方としてロック受け部７８とロック部４５との間に介挿可能となっている。   By the way, in order to unlock the retainer 70 in the main locking position, a lock releasing jig 100 as shown in FIG. 1 is used. The jig 100 is operated to move along the front surface of the retainer 70. The jig 100 is inserted into one side edge between the lock receiving portion 78 and the lock projecting portion 45 from the outer side and engaged between the two. Is provided with a release unit 101 for solving the problem. As shown in FIG. 7, the release portion 101 includes an obtuse angle portion 102 having a sharpened tip toward the tip of the jig 100 in the moving operation direction. With the obtuse angle portion 102 as a tip, the lock receiving portion 78, the lock portion 45, It can be inserted between.

ここで、リテーナ７０に対して前方から冶具１００を覆い被せるようにして対向させるとともにロック受け部７８とハウジング本体２０の前面との間に解除部１０１の鈍角部１０２を臨ませ（図７参照）、この状態で冶具１００をリテーナ７０の前面に沿って仮係止位置側へ移動させる。すると、鈍角部１０２の一辺１０３に沿ってハウジング本体２０の角部が摺動し、この摺動に基づいて冶具１００の解除部１０１が斜め前方へ変位する。解除部１０１が斜め前方へ変位するに従って鈍角部１０２に引掛けられたロック受け部７８の自由端が前方へ捲れ上がり、もってロック受け部７８とロック部４５との係止状態が解除される（図８参照）。この間、鈍角部７８の一辺１０３は、冶具１００の移動にともないロック受け部７８の撓み変形動作を誘導する解除案内面として機能する。仮に、解除部１０１の先端が鋭角であると、鋭角状の先端でロック受け部７８の自由端側を削ってしまいロックに支障を来たす懸念があるが（参考例として示す図９参照）、本実施形態によれば、解除案内面の存在によって解除部１０１がロック受け部７８とロック部４５との間にすんなりと分け入るから、ロックに支障を来たすことがなく、ロック解除動作の円滑性が保障される。   Here, the retainer 70 is opposed to the retainer 70 so as to cover the jig 100 from the front, and the obtuse angle portion 102 of the release portion 101 faces between the lock receiving portion 78 and the front surface of the housing body 20 (see FIG. 7). In this state, the jig 100 is moved along the front surface of the retainer 70 to the temporary locking position side. Then, the corner portion of the housing body 20 slides along one side 103 of the obtuse corner portion 102, and the release portion 101 of the jig 100 is displaced obliquely forward based on this sliding. As the release portion 101 is displaced obliquely forward, the free end of the lock receiving portion 78 hooked on the obtuse angle portion 102 rises forward, so that the locked state between the lock receiving portion 78 and the lock portion 45 is released ( (See FIG. 8). During this time, one side 103 of the obtuse angle portion 78 functions as a release guide surface that guides the bending deformation operation of the lock receiving portion 78 as the jig 100 moves. If the tip of the release portion 101 has an acute angle, there is a concern that the sharp end may scrape the free end side of the lock receiving portion 78 and hinder locking (see FIG. 9 shown as a reference example). According to the embodiment, since the release portion 101 is smoothly inserted between the lock receiving portion 78 and the lock portion 45 due to the presence of the release guide surface, there is no hindrance to the lock, and the unlocking operation is smooth. Guaranteed.

以上説明したように本実施形態によれば、リテーナ７０の前壁部７１に撓み変形可能なロック受け部７８が前面に露出して設けられているから、リテーナ７０が本係止位置にあるときに前方からロック解除用の冶具１００をロック受け部７８に係合させ、その状態からロック受け部７８を撓み変形させることでロック受け部７８とロック部４５との係止状態を解除させることが可能となる。すなわち、冶具１００によるロックの解除が可能となるから、作業負担が軽減されるとともにロック受け部７８やロック部４５の磨耗が低減されてロックの信頼性を確保できる。   As described above, according to the present embodiment, since the lock receiving portion 78 that can be bent and deformed is provided on the front wall portion 71 of the retainer 70 so as to be exposed on the front surface, when the retainer 70 is in the full locking position. It is possible to release the locked state between the lock receiving portion 78 and the lock portion 45 by engaging the unlocking jig 100 with the lock receiving portion 78 from the front and bending and deforming the lock receiving portion 78 from that state. It becomes possible. That is, since the lock can be released by the jig 100, the work load is reduced and the wear of the lock receiving portion 78 and the lock portion 45 is reduced, and the reliability of the lock can be ensured.

また、ロック受け部７８とロック部４５との係止状態がロック孔７９を通して外部から視認可能となっているから、ロック状態にあるか否かの検知が容易となる。   Further, since the locked state of the lock receiving portion 78 and the lock portion 45 is visible from the outside through the lock hole 79, it is easy to detect whether or not the lock receiving portion 78 and the lock portion 45 are in the locked state.

＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。
（１）上記実施形態では、ロック受け部がリテーナの前面壁の端部に設けられ、ロック部がハウジング本体の前面の端部に設けられていたが、本発明においては、ロック受け部がリテーナの前壁部の中央部に設けられ、ロック部がハウジング本体の前面の中央部に設けられていても構わない。
（２）上記実施形態では、フード付きのコネクタについて示したが、本発明においては、サイドリテーナタイプのコネクタに広く適用できる。 <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, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above embodiment, the lock receiving portion is provided at the end portion of the front wall of the retainer and the lock portion is provided at the end portion of the front surface of the housing body. However, in the present invention, the lock receiving portion is the retainer. The lock part may be provided in the center part of the front surface of the housing body.
( 2 ) Although the hooded connector is shown in the above embodiment, the present invention can be widely applied to a side retainer type connector.

本発明の実施形態を適用したコネクタの分解斜視図1 is an exploded perspective view of a connector to which an embodiment of the present invention is applied. リテーナが仮係止位置にあるときのコネクタの正面図Front view of the connector when the retainer is in the temporary locking position リテーナが本係止位置にあるときのコネクタの正面図Front view of the connector when the retainer is in the fully locked position 図２のＡ−Ａ断面図AA sectional view of FIG. 図３のＢ−Ｂ断面図BB sectional view of FIG. ショート端子が装着された状態を示す断面図Sectional drawing which shows the state in which the short terminal was attached 冶具の解除部がロック受け部に係合した状態を示す要部拡大断面図The principal part expanded sectional view which shows the state which the cancellation | release part of the jig engaged with the lock | rock receiving part. 冶具の解除部によりロックが解除された状態を示す要部拡大断面図The principal part expanded sectional view which shows the state by which the lock | rock was cancelled | released by the cancellation | release part of the jig 参考例を示す図７相当図7 equivalent diagram showing a reference example リテーナの正面図Retainer front view リテーナの平面図Retainer top view リテーナの側面図Side view of retainer

符号の説明Explanation of symbols

１０…コネクタ
２０…ハウジング本体（コネクタハウジング）
４５…ロック部
７０…リテーナ
７１…前壁部
７８…ロック受け部
７９…ロック孔 10 ... Connector 20 ... Housing body (Connector housing)
45 ... Lock part 70 ... Retainer 71 ... Front wall part 78 ... Lock receiving part 79 ... Lock hole

Claims (3)

コネクタハウジングの前面に対向する前壁部と、この前壁部に連なるとともに前記コネクタハウジングの内部に進入可能とされて同内部に挿入された端子金具を抜け止めする係止部とを備え、前記前壁部が前記コネクタハウジングの前面に沿って移動することで前記係止部が前記端子金具を係止するロック位置に至るリテーナのロック構造であって、
前記コネクタハウジングの前面にはロック部が設けられ、前記前壁部には、前記リテーナの移動途中で撓み変形して前記ロック部に乗り上げられ、前記係止部がロック位置に至るとともに弾性復元して前記ロック部に係止されるロック受け部が露出して設けられ、
前記ロック受け部は、ロック孔を保有しており、前記係止部がロック位置に至ったときに、このロック孔に前記ロック部が嵌り込むようになっており、
前記コネクタハウジングの前面には、隣接する端子金具同士を短絡させるショート端子を収容するショート端子装着部が開口して形成され、
前記前壁部には、前記ロック位置にて前記ショート端子装着部と連通する透孔が形成され、前記ロック孔は、前記透孔と連通していることを特徴とするロック構造。 A front wall portion opposed to the front surface of the connector housing, and a locking portion that is continuous with the front wall portion and is capable of entering the inside of the connector housing and prevents the terminal fitting inserted into the inside of the connector housing, A retainer locking structure in which a front wall portion moves along the front surface of the connector housing to reach a locking position where the locking portion locks the terminal fitting,
Wherein the front of the connector housing locking portion is provided, wherein the front wall, is riding on the locking portion and deformed in the middle movement of the retainer, the elastic restoring with the locking portion reaches the locking position Then, a lock receiving portion that is locked to the lock portion is exposed and provided ,
The lock receiving part has a lock hole, and when the locking part reaches a lock position, the lock part is fitted into the lock hole,
On the front surface of the connector housing, a short terminal mounting portion that accommodates a short terminal that short-circuits adjacent terminal fittings is formed open,
The front wall portion is formed with a through hole communicating with the short terminal mounting portion at the lock position, and the lock hole communicates with the through hole . 前記ロック部と前記ロック受け部との係止状態が前記ロック孔を通して外部から視認可能となっていることを特徴とする請求項１に記載のロック構造。 Lock structure of claim 1, the locking state between the front Symbol locking portion the lock receiving portion is characterized that it is visible from the outside through the locking hole. 前記ロック受け部は、片持ち状に設けられ、その自由端側には冶具が係合可能とされ、この冶具は、前記ロック受け部と前記ロック部の間に外側方から分け入って両間の係合を解く解除部を備え、
前記解除部には、前記ロック受け部の撓み変形動作を誘導する解除案内面が設けられていることを特徴とする請求項１または請求項２に記載のロック構造。 The lock receiving portion is provided in a cantilevered manner, and a jig can be engaged with the free end side of the lock receiving portion, and the jig is inserted between the lock receiving portion and the lock portion from the outside and between the two. A release part for releasing the engagement of
The lock structure according to claim 1, wherein the release portion is provided with a release guide surface that guides a bending deformation operation of the lock receiving portion.
JP2003392470A 2003-11-21 2003-11-21 Lock structure Expired - Fee Related JP4158686B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2003392470A JP4158686B2 (en) 2003-11-21 2003-11-21 Lock structure
DE200410055444 DE102004055444B4 (en) 2003-11-21 2004-11-17 Locking structure, a connector provided therewith and locking method for a retainer
CNB2004100952646A CN100372184C (en) 2003-11-21 2004-11-22 Lock structure, connector and locking method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003392470A JP4158686B2 (en) 2003-11-21 2003-11-21 Lock structure

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JP2005158347A JP2005158347A (en) 2005-06-16
JP4158686B2 true JP4158686B2 (en) 2008-10-01

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Publication number Priority date Publication date Assignee Title
EP2051335B1 (en) * 2007-10-19 2011-09-14 Sumitomo Wiring Systems, Ltd. A connector
JP5800243B2 (en) * 2012-10-02 2015-10-28 住友電装株式会社 connector
US10122113B1 (en) * 2017-12-05 2018-11-06 Te Connectivity Brasil Industria De Electronicos Ltda. Connector assembly with independent secondary lock with resilient positioning member
JP2023005506A (en) * 2021-06-29 2023-01-18 株式会社オートネットワーク技術研究所 connector

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JP3121709B2 (en) * 1993-05-25 2001-01-09 矢崎総業株式会社 ID connector
DE4413936C5 (en) * 1994-04-21 2005-10-27 Framatome Connectors Daut + Rietz Gmbh Housing for electrical connectors with secondary locking
JP3171112B2 (en) * 1996-06-26 2001-05-28 住友電装株式会社 Retainer
US5928034A (en) * 1996-07-30 1999-07-27 Sumitomo Wiring Systems, Ltd. Connector with terminal locking and locking assurance features
GB9713851D0 (en) * 1997-06-30 1997-09-03 Amp Italia Electrical connector having a secondary locking member
JP3687537B2 (en) * 2000-12-25 2005-08-24 住友電装株式会社 Split connector
US6666728B2 (en) * 2001-04-17 2003-12-23 Sumitomo Wiring Systems, Ltd. Divided connector and a connection method of a divided connector with a mating connector

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CN1694311A (en) 2005-11-09
DE102004055444A1 (en) 2005-06-23
JP2005158347A (en) 2005-06-16
DE102004055444B4 (en) 2009-01-02

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