201205977 六、發明說明 【發明所屬之技術領域】 本發明是關於電路基板用電連接器。 【先前技術】 這種連接器，是在與電路基板的面平行的狀態，將 FPC等的扁平型導體***連接。該扁平型導體’一般來 說’在其側緣形成有耳狀或孔狀的被卡止部，讓連接器的 鎖定配件的鎖定部卡止於上述被卡止部，即使不經意地朝 拔出方向的外力朝扁平型導體作用，也能防止其脫落。 在專利文獻1，設置有：與端子（接點）大致同樣的， 具有以連結部連結的上腕部與下腕部的橫Η字型的鎖定 配件（鎖定構件），該鎖定配件的上腕部，朝較連結部更靠 近扁平型導體的***側的後方，水平延伸，在其後部形成 有爪狀的鎖定部（卡合部）。該鎖定部，朝向扁平型導體 側，作成朝下方突出的大致倒三角形，當連接器使用時， 當可動構件（滑塊）朝用來將扁平型導體朝端子的接觸部按 壓的關閉位置移動時，上述鎖定配件的上腕部，在其前部 被可動構件的凸輪部抬起，利用槓桿原理，讓上腕部的後 部朝下方傾斜，於是，鎖定部朝下方移位。結果，讓上述 鎖定部從上方朝向：***於上腕部與下腕部之間的扁平型 導體的被卡止部卡止，防止扁平型導體不經意脫落。 [先前技術文獻] [專利文獻] -5- 201205977 [專利文獻1] 日本特開2004-221067 【發明內容】 [發明欲解決的課題] 專利文獻1的連接器，爲了防止扁平型導體不經意脫 落，與該扁平型導體的被卡止部卡止的鎖定部，在鎖定配 件的上腕部沒有從可動構件受到任何力量的自由狀態，設 置在：從鎖定配件的連結部朝後方延伸的上腕部的後部。 接著，其上腕部的後部，在連接器使用時的扁平型導體具 有正式的接觸壓力而與端子的接觸部接觸的移位狀態，朝 向後下方傾斜。也就是說，藉由將上腕部的前部朝向上方 來承受：來自位於關閉位置的可動構件的力，讓上腕部的 後部以連結部爲支點傾斜，結果，設置在上腕部的後部的 鎖定部朝下方移位，能確保與扁平型導體的被卡止部的卡 止量。 可是，當扁平型導體不經意地被較強力量朝後方（拔 出方向），也就是將上腕部朝向往後部延伸的水平方向拉 動時，朝下方傾斜的上述上腕部的後部，會藉由上述力量 的朝上分力，而朝水平方向退回。這代表著，不再是原本 的傾斜度，鎖定部朝上方移動，也就是說與被卡止部的卡 止量減少了。並且，上述鎖定部作成大致倒三角形。於 是，當將扁平型導體強力朝拔出方向拉動時，扁平型導體 的被卡止部，朝上述大致倒三角形的鎖定部的前部斜緣帶 -6 - 201205977 來拔出方向的力，該力量會在前部斜緣產生朝上方的分 力，結果將上腕部的後部朝上方抬起，使該後部也就是鎖 定部的移位的量更減少。也就是說，鎖定部與被卡止部的 卡止量大幅減少、或是產生尙未脫落而會不經意地讓扁平 型導體脫落這樣的情形。 本發明，鑑於這種情形，其課題要提供一種電路基板 用電連接器，在使用鎖定配件的電路基板用電連接器，在 扁平型導體的正式的連接狀態下，即使不經意地有較強力 量朝扁平型導體的拔出方向作用，也能確實地防止脫落。 [用以解決課題的手段] 本發明的電路基板用電連接器，是配置於電路基板 上，將所***的扁平型導體與電路基板電連接的電連接 器，是具有： 設置有：維持金屬板的平坦的板面所作成而與扁平型 導體接觸的接觸部、與電路基板連接的連接部、按壓扁平 型導體的按壓部、以及用來承受使該按壓部朝按壓方向移 位的力的被壓部，在與上述板面成直角的方向排列的複數 的端子； 設置有：與端子同樣地維持金屬板的平坦的板面所作 成而與扁平型導體卡止而鎖定的鎖定部、以及用來承受使 該鎖定部移位的力的被壓部，配置成板面與上述端子平行 的鎖定配件； 形成有用來將***的扁平型導體的連接部分予以收容 201205977 的收容空間，在上述接觸部與扁平型導體接觸的位置保持 上述端子，且保持鎖定配件的殻體； 以及設置有用來將力量施加到上述端子及鎖定配件的 被壓部的加壓部，能夠於：可***扁平型導體的開啓位 置、與將扁平型導體朝端子的接觸部按壓，並且將鎖定部 帶到鎖定位置的關閉位置之間移動的可動構件； 上述端子及鎖定配件，藉由將以扁平型導體的***方 向作爲長軸方向延伸的上腕部與下腕部，在其長軸方向中 間位置藉由連結部連結所形成，端子，其上腕部在較連結 部更靠近扁平型導體的***方向前側的前部具有被壓部， 在後部具有按壓部，鎖定配件其上腕部在前部具有被壓 部，在後部具有突起狀的鎖定部。 在電路基板用電連接器，在本發明，鎖定配件的上腕 部，當可動構件位於開啓位置時，其從連結部到鎖定部的 範圍朝後上方延伸，該鎖定部朝向下方突出，上述上腕 部，當可動構件位於關閉位置時，其從連結部到鎖定部的 範圍，成爲朝向上述扁平型導體的插拔方向的姿勢。 在該構造的本發明，鎖定配件的上腕部，在扁平型導 體***前的自由狀態，其從連結部到鎖定部的範圍朝後上 方傾斜延伸，當扁平型導體***後的連接器使用時，受到 來自關閉位置的可動構件的力在鎖定狀態，成爲朝向扁平 型導體的插拔方向也就是水平方向移位的姿勢。於是當連 接器使用時，即使扁平型導體在拔出方向受到不經意的外 力，由於上述外力朝水平方向朝向：朝上述連結部更後方 -8- 201205977 朝水平方向延伸的上腕部作用，所以朝該上腕部作用的外 力不會產生朝上方的分力’結果，上述鎖定狀態的上腕部 的水平姿勢不會改變。這代表卡止量不會改變，能維持正 式的鎖定狀態。 在本發明’加壓部形成爲凸輪部，該凸輪部，是朝用 來提高扁平型導體與端子的接觸部的接觸壓力的方向，使 該端子的按壓部移位，並且以使鎖定配件的鎖定部朝鎖定 方向移位的方式，被端子與殼體的至少其中一方所導引支 承而可移動至，將力量施加到各被壓部的關閉位置，且在 關閉位置將力施加到被壓部；該凸輪部在端子排列方向設 置在端子位置及鎖定配件的位置》 在本發明，鎖定部，當可動構件位於開啓位置時，該 鎖定部突出至在上下方向與扁平型導體干涉的位置’該鎖 定部的後緣形成爲朝前下方傾斜，作成與***時的扁平型 導體的前端抵接的抵接斜部。 藉此，將鎖定部的突出量增大至鎖定部與扁平型導體 干涉的位置，能確保與扁平型導體的被卡止部的卡止量夠 大，並且，當扁平型導體***時，以抵接斜部承受來自扁 平型導體的抵接力，朝上方移位’所以能容易***扁平型 導體。 在本發明，該鎖定部’其前緣作成朝下方垂直或朝前 方傾斜。 藉此，當鎖定部的前緣與扁平型導體的被卡止部卡止 時，能確實且強力地卡止。 -9 - 201205977 [發明效果] 本發明，如以上，將具有鎖定部的鎖定配件的上腕 部，形成爲：在扁平型導體***前的自由狀態朝向後部， 相較於扁平型導體的插拔方向也就是水平方向，朝更上方 延伸，在扁平型導體***後的使用狀態，藉由將其朝向後 方朝下方移位而成爲水平狀態，使鎖定部與扁平型導體的 被卡止部卡止，所以即使不經意的力量朝扁平型導體的拔 出方向作用，上述上腕部也會維持該拔出方向也就是水平 方向的狀態，鎖定部其卡止量不會減少。 【實施方式】 以下根據附圖，來說明本發明的實施方式。 第1圖是顯示本實施方式的電路基板用電連接器（以 下「連接器」）的全體，以及該連接器連接的扁平型導體 的前端部的連接部分的立體圖。 扁平型導體F，在其前端部下面，將覆蓋部去除而導 體部（沒有圖示）露出，在上面將薄片狀的補強材F1安裝 成：較該導體部朝更前方朝向連接器1突出。該補強材 ’在較導體部更前方的左右的側緣形成有缺口狀的被卡 止部F2 » 連接器1’是具有：由金屬板作成的端子1〇、20、鎖 定配件30、將上述構件予以保持的殻體40、以及可自由 轉動地支承於殻體40的可動構件60 » -10- 201205977 端子10、20、與鎖定配件30，都是維持金屬板的平 坦面所作成。端子由兩種端子10、20所構成’將其在與 端子10、20的板面成直角的方向排列成交互位置，與在 同方向位於兩端的端子1〇、20鄰接而設置鎖定配件30。 兩種端子1〇、20，如在該端子10、20的剖面圖也就 是第2圖（A)、（B)所示，都作成橫Η型，具有：分別朝橫 方向延伸的上腕部11、21、下腕部12、22、以及將兩腕 部在其長軸方向中間部連結的連結部13、23。上腕部 11、21，在作爲扁平型導體F的***方向的前方的前部， 形成有以後述的可動構件的凸輪部按壓的被壓部14、 24，在後部形成有從上方按壓扁平型導體的按壓部15、 25。在下腕部1 2、22的前部，形成有上述凸輪用的支承 部16、26’而在後部形成有用來與扁平型導體的導體部 接觸用的接觸部17、27。且在下腕部12、22，設置有： 與電路基板焊接用的連接部18、28。 以上’雖然針對兩種端子10、20的共通點來敘述， 接著針對差異點來說明。 端子10的上腕部11’如第2圖（Α)所示，在前部的 下緣處設置的被壓部14作成凹部，而從連結部13朝後方 長長地延伸而在其後端設置有突狀的按壓部15。相對 的’端子20的上腕部21，如第2圖（Β)所示，在前部的 下緣處設置的被壓部24是以直狀緣部形成，且從連結部 23朝後方延伸的部分，較上述端子1〇的情況更短，在其 後端設置有突狀的按壓部25。 -11 - 201205977 端子1 0的下腕部1 2，如第2圖（a )所示，從連結 13朝前方延伸而在延伸到殼體40外的部分形成有連接 18。連接部18，具有朝下方凹入腎曲的溝狀的固定 18A。在連結部13與連接部18之間的部分，形成有： 緣作成凹狀用來收容凸輪部的支承部16。相對的，端 2 0的下腕部2 2，如第2圖（B)所示，在從連結部2 3朝 方延伸的部分的上緣，作成大致直狀緣部形成了支承 26，朝後方延伸的部分延伸到殻體4〇外，具有：與上 端子10的連接部18大致前後對稱的形態的連接部28 固定部28A。該端子20的下腕部22’在前後方向’在 結部23與連接部28的中間部，在與上腕部21的按壓 25對應的位置，設置有突狀的接觸部27» 這樣形成的兩種端子1 〇、20，如第1圖所示，將 子10從前方且將端子20從後方朝殻體40安裝，將其 互排列。 鎖定配件30，如第2圖（C)及第3圖所示，作成與 子20類似的橫Η字型，與端子20同樣地，具有上腕 31與下腕部32，兩者在其長軸方向中間部藉由連結部 連結。該鎖定配件30,在前部，上腕部31與下腕部32 都作成與上述端子20相同的型態，在上腕部31的前部 以直狀緣部形成有被壓部34 ’在下腕部32的前部形成 大致直狀緣部的支承部36。該鎖定配件30的後部，有 上述端子20不同之處。上腕部31的後部，其長度較端 20更長，在與端子1 〇大致相同位置，形成有朝後方延 部 部 部 上 子 前 部 述 及 連 部 端 交 端 部 3 3 有 與 子 伸 -12- 201205977 的鎖疋腕31A。在其後端設置有：朝向下方的較大的突出 狀的鎖定部35。上述鎖定腕31A，朝向後上方傾斜延 伸。該鎖定腕31A’當上述被壓部34被後述關閉位置的 可動構件的凸輪部按壓而朝上方抬起移位時，因爲槓桿原 理’以連結部33爲支點朝下方移位，結果，變成來到大 致水平位置。在該情況，鎖定腕31A即使不在完全水平 的位置’或有些許的傾斜，只要是實質上可稱爲水平姿勢 的姿勢即可。例如’當可動構件在開啓位置時具有傾斜的 鎖定腕’當可動構件來到關閉位置時，雖然其傾斜角度變 小而變得接近水平位置，而仍然有些許的傾斜，或是即使 超過水平位置而在相反側產生些許的傾斜，在其傾斜度很 小的情況，都可說是實質上在水平位置。在上述鎖定腕 31A的後端處設置的突出狀的鎖定部35，前緣35A作成 大致垂直緣，後緣35B朝前下方傾斜。該鎖定部35，在 上腕部31在被壓部34沒有受到來自凸輪部的力的狀態， 當***扁平型導體F時，是成爲與該扁平型導體F的前端 緣干涉的在高度方向的位置關係。在上述下腕部32的後 端，設置有與端子20的連接部28相同型態的固定腳 38，在這裡形成有溝狀的固定部38A。 將上述端子10、20及鎖定配件30予以保持的殼體 40，是由電絕緣材所作成，如第1圖所示，作成較平坦的 大致長方體外型，如第2圖’前後（在圖中的右方及左方） 貫穿而形成有：分別將端子10、20及鎖定配件30予以保 持的端子保持溝41、42及鎖定配件保持溝43。該端子保 -13- 201205977 持溝41、42及鎖定配件保持溝43，以將板狀的端子l〇、 2〇及鎖定配件30面對保持成讓與其板面保持些許間隙的 方式，在第2圖在與紙面成直角的方向形成爲與其板厚度 相當的溝寬度的狹縫。相對於端子保持溝41、42及鎖定 配件保持溝43，端子10、20及鎖定配件30，藉由在其下 緣形成的突起19、29及突起39，卡止於溝底而在上下緣 堅固地保持。該端子保持溝41、42及鎖定配件保持溝 43，在殻體40的前部與朝向上方大幅缺口的前部空間44 連通，並且在前後方向藉由從中間位置朝向後方形成的扁 平型導體F用的作爲收容空間的***溝45所連通。藉由 該***溝45的形成，殼體40在其上下位置變得具有上壁 46及下壁47，在該上壁46及下壁47的面，端子保持溝 41、42作成爲開口溝的型態。該上壁46，在鎖定配件30 的位置，讓該鎖定配件30的鎖定腕31A進入的溝部48 上下貫穿而形成爲狹縫狀。下壁47相對於端子10，前端 較薄地形成爲大致錐狀，作成讓端子10的溝狀的固定部 18A嵌裝的保持部47A，相對於端子20及鎖定配件30， 作成在後端同樣形成的端子20及鎖定配件30的各個固定 部28A及38A用的保持部47A。在上述下壁47朝上方開 口的端子10用的端子保持溝41，以允許端子10的下腕 部1 2的後部朝下方撓曲的方式，其溝底4 1 A朝向後方形 成爲錐狀，其溝深度依序變大。 殻體40，從第1圖判斷，在端子排列方向的兩端 部，設置有：較包含端子排列範圍的兩端的鎖定配件30 -14- 201205977 彼此間的範圍的後端緣更朝後方延伸的延伸部49。該延 伸部49，如第2圖所示，從後方觀察的形狀作成橫U字 型，以從後方收容扁平型導體F的寬度方向兩側緣（在寬 度方向被卡止部F2存在的範圍）的方式，形成有***溝 45的寬度方向兩端部分。該延伸部49，在後方的入口部 在上下具有錐狀的導入面4 9A、49B。上述延伸部49的其 ***溝4 5的內側面及上下內面，形成有：用來將所*** 的扁平型導體F限制其寬度方向及上下方向的位置的限制 部50。在該限制部50之中的與扁平型導體***時的載置 面相同高度的下內面，設置有：與扁平型導體F的被卡止 部F2卡止的作爲突部的卡止突起51。該卡止突起51，從 第1圖來看，是在端子排列方向相對於鎖定配件30偏離 的位置，在前後方向，從第2圖（C)來看，設置在與鎖定 配件30的鎖定部35大致相同的位置。該卡止突起51其 縱剖面作成梯形，前緣51A爲垂直面，後緣51B爲錐狀 面。該卡止突起51的上面51C是平坦面，如顯示當可動 構件在開啓位置時的第2圖（C)所示，高度設定成：雖然 位於較鎖定部35的下端更下方，而當藉由可動構件來到 關閉位置而鎖定部3 5朝下方移位時，位於較該鎖定部3 5 的下端更上方。當可動構件在開啓位置時，如第2圖 (A)、（B)所示，上述卡止突起51的上面，位在：較在端 子10、20的下腕部12、22處設置的接觸部17、27的上 端更下方。 在本發明，當可動構件來到關閉位置時，鎖定部3 5 -15- 201205977 與卡止突起51，是對於扁平型導體的被卡止部F2從上方 及下方補充卡止。於是，如上述例子，當可動構件來到關 閉位置時，卡止突起51的上面51C，不一定要位於較鎖 定部35的下端更上方，也可位於較鎖定部35的下端更下 方，也可獲得上述補充達到的效果。並且，在本發明，卡 止突起，不藉由殼體形成也可以，也可在藉由殼體所保持 的其他構件，例如在補強配件形成也可以，並且’也可在 具有鎖定腕部的配件本體形成爲與鎖定部相對向。 端子10、20及鎖定配件30，如上述，在端子保持溝 41、42及鎖定配件保持溝43的溝底被堅固地保持’在與 溝內面之間形成有些許的間隙，而與該端子1 〇、20及鎖 定配件30的板面之間的間隙，藉由該端子1〇、20及鎖定 配件3 0的部位，有大小的差異，也就是說溝寬度有寬有 窄。 如顯示在連結部13、23及33所位置的高度的橫剖面 的第4圖所示，在包含上述連結部13、23、33的各區域 的端子保持溝41、42及鎖定配件保持溝43的溝寬度，較 在其他區域的溝寬度更大，形成了寬幅部41A、42A、 43A。在該寬幅部41A、42A、43A的區域’與U而子10、 20及鎖定配件30的板面之間，分別形成有：較其他區域 更寬的間隙hi、h2、h3。在本實施方式，hi = h2。相對 於在端子排列方向交互配置的該端子1 〇、20 ’寬幅部 41 A、42A，其位置在前後方向（在第4圖上下方向）錯開。 在該第4圖，可清楚看出上述的卡止突起51在端子排列 -16- 201205977 方向其位置偏離於鎖定配件30,而接近該鎖定配件30。 在上述第4圖的例子，是將端子10、20的連結部13、23 設置在前後方向不同的位置，在前後方向在與該連結部 13、23對應的區域設置寬幅部41A、42A，寬幅部41A、 42A其位置也在前後方向錯開。相對的，作爲不同的型 態，端子1 〇、2 0的連結部1 3、2 3，如第5圖所示，當在 前後方向位於相同位置時，寬幅部41A、42A，也可形成 爲經過錐狀部而前後錯開移往寬幅部4 1 A、42 A。並且， 連結部1 3、2 3，作爲將上腕部1 1、2 1與下腕部1 2、2 2 連結的型態具有與兩腕部的間隔相當的上下方向的長度， 所以即使該連結部1 3、2 3在前後方向在相同位置，如第 6圖所示，在上下方向不同的位置設置寬幅部41A、 42A，上下錯開形成較大的間隔hi、h2也可以》 如第1圖所示，在連接器1，可自由轉動地設置有以 電絕緣材作成的可動構件60。該可動構件60，位在：於 殼體40的前部形成的前部空間44。該可動構件60，涵蓋 殼體40的寬度（在端子排列方向的尺寸）而延伸，在從第2 圖（A)〜（C)所示的垂立姿勢的開啓位置，到朝橫方向橫倒 的第9圖（A)〜（C)的關閉位置之間可自由轉動。該可動構 件60，是用來將朝下方的移位施加到端子1 0、20、鎖定 配件3 0的上腕部1 1、2 1、3 1的後部，所謂開啓位置，是 在產生該移位之前，可將扁平型導體F朝殼體40的*** 溝45***的該可動構件60的位置，另一方面，所謂的關 閉位置，是產生移位而將***後的扁平型導體F朝下方壓 -17- 201205977 入的位置。 上述可動構件60，在開啓位置，如第2圖（A)〜（C)， 具有從前部空間44朝上方突出的操作部61，在較該操作 部61更下方的部位，形成有前後貫穿的狹縫狀的溝部 62。該溝部62，在端子排列方向形成在與各端子1〇、20 及鎖定配件30對應的位置，該溝部62的溝寬度（在第2 圖（A)〜（C)在相對於紙面成直角的方向的溝內寬度尺寸） 爲稍大於對應的上述端子10、20及鎖定配件30的板厚 度。在溝部62的下部，設置有：作爲對於端子1〇、20及 鎖定配件30的加壓部的與各端子10、20及鎖定配件30 對應的凸輪部63、64、65。各凸輪部63、64、65形成爲 將溝部62的相對向的溝內面彼此予以連結。 對應於端子〗〇設置的凸輪部63，如第2圖（A)所 示，當可動構件60在開啓位置時，具有作成橫長的長圓 形剖面形狀，在端子10的下腕部12的前部上緣處形成的 凹狀的支承部16內，對於上腕部11的被壓部14具有間 隔而成爲非接觸的狀態。第2圖（A)的該凸輪部63的橫 長，設定爲較同圖的上述支承部16與被壓部14的間隔更 大。於是，當可動構件60來到關閉位置時，如後述，上 述凸輪部63爲縱長姿勢，將上述被壓部14朝上方按壓使 其彈性移位。 與端子20對應設置的凸輪部64，如第2圖（B)所 示，當可動構件60在開啓位置時，具有將上述端子10用 的橫長的長圓形的凸輪63的右上角部變形成角狀的剖面 -18- 201205977 形狀，而與上述支承部26相接。在該圖的高度尺寸也是 大於上述凸輪部63。於是，凸輪部64在左部爲半圓形， 在右部具有平坦面且其下部作成類似圓形的形狀。該凸輪 部64，當可動構件6〇在開啓位置時，相對於在端子20 的上腕部21處形成的被壓部24，爲具有間隔的非接觸的 狀態，當可動構件60來到關閉位置時，成爲縱長姿勢， 將該被壓部24朝上方按壓使其彈性移位。 對應於鎖定配件30而設置的凸輪部65，雖然剖面形 狀類似上述凸輪部64，而即使可動構件60在開啓位置， 也相接於：在鎖定配件30的上腕部31處形成的被壓部 34。當可動構件60來到關閉位置時，該凸輪部65按壓上 述被壓部3 4使其彈性移位。 分別對應於兩種端子10、20的凸輪部63、64，當可 動構件6 0來到關閉位置時，從其旋轉軸線的方向，也就 是在第2圖與紙面成直角的方向觀察，是如第7圖（A)的 位置關係。在第7圖（A) ’當可動構件60在關閉位置時， 成爲縱長姿勢的凸輪部63與凸輪部64，從端子1〇的被 壓部14與支承部16分別受到相同力的反作用力a、B， 從端子20的被壓部24與支承部26分別受到相同力的反 作用力C、D。朝其中一方的凸輪部63的反作用力A、 B，其作用線一致而在通過凸輪的旋轉中心P的二條線X 上。相對的，在另一方的凸輪部64，藉由其寬度較凸輪 部63更寬，且上端的圓弧偏向右側，讓來自被壓部24的 反作用力C位於較上述凸輪部63的反作用力A更右邊， -19- 201205977 來自支承部26的反作用力作用於凸輪部64的平坦的底 面’所以反作用力D的中心成爲其中心位置，結果會具 有與上述反作用力C相同線γ上的作用線。也就是說， 當同時看凸輪部63、64時，反作用力A與B在一條線X 上達成平衡，且反作用力C與D會在離開線X的其他線 Y上達成平衡。於是，在凸輪部63、64的兩方，在互相 離開上述凸輪的旋轉中心P的位置承受，在上下方向平衡 的反作用力 A、B及同樣在上下方向的平衡的反作用力 C、D’在關閉位置的可動構件60，在關閉位置，會成爲 中立狀態。可動構件60，即使從該中立狀態，朝開啓位 置方向或其相反方向偏移，因爲上述兩條線X、Y上的反 作用力A、B及C、D造成的力矩，而會回到當初的中立 狀態，能稔定保持中立狀態。 該中立狀態，將兩種凸輪部63、64的反作用力B、D 相對於反作用力A、C的位置關係置換也能獲得。在第7 圖（B)，當可動構件在關閉位置時，以讓兩種凸輪部63、 64的長軸交叉的方式形成兩凸輪部的話，其中一方的凸 輪部6 3的反作用力A、B的作用線互相錯開，且另一方 的凸輪部64的反作.用力C、D的作用線也互相錯開。可 是，同時觀察兩種凸輪部63、64的話，四種反作用力 A、 B、C、D，與第7圖（A)的情況相比，只要將反作用力 B、 D的位置對調，則全體與第7圖（B)時同樣達成平衡。 在該情況，中立狀態也很穩定。 接著，針對該構成的本實施方式的電路基板用電連接 -20- 201205977 器，說明其使用方法。 (1) 首先，將如第1圖所示的連接器1配置在電路基 板（沒有圖示）的預定位置，將端子10、20的連接部18、 28與鎖定配件30的固定腳38的兩者，與電路基板的各 個對應部焊接。銲錫可能會從在下腕部1 2、22、3 2處形 成的上述連接部18、28及固定腳38，沿著端子1〇、2〇 及鎖定配件30的各個板面而上升。可是，端子10、2〇及 鎖定配件3 0的下腕部1 2、22、3 2，僅以連結部1 3、2 3、 3 3連結於上腕部1 1、2 1、3 1，所以即使假設銲錫上升， 銲錫爲了達到上腕部1 1、21、3 1，銲錫必須通過該連結 部13、23、33。可是，從第4圖〜第6圖看來，相對於 連結部13、23、33，殼體40在寬幅部41八、42八'43八 形成有很大的間隙，所以銲錫上升在該處停止，不會到達 上腕部11、21、31。該阻止銲錫上升的效果，針對助焊 劑（flux)也能同樣得到。 (2) 接著，如第2圖（A)〜（C)所示，將可動構件60帶 到垂立的開啓位置，準備扁平型導體F的***。在該可動 構件60處於開啓位置的狀態，端子1 〇、20及鎖定配件 30的被壓部14、24、34’沒有從可動構件60的對應凸輪 部63、64、65受到任何力量，於是，按壓部15、25、35 沒有移位在最初的位置，端子1〇、20’在容易接收扁平 型導體F的狀態。鎖定配件30，如上述’其按壓部35在 與扁平型導體F的***路線干涉的位置。 (3) 然後，如第8圖（A)〜（C)所示，將扁平型導體F朝 -21 - 201205977 殻體40的***溝45***。此時，扁平型導體F，在與端 子10、20相接之前，藉由在朝後方延伸的殼體40處設置 的延伸部49的限制部5 0，限制在上下及側方的位置，在 預定位置***。於是，當***時，端子10、20不會從扁 平型導體F受到過度的力量。當扁平型導體F***時，如 上述，可動構件60在開啓位置，端子10、20的按壓部 15、25，尙未朝下方移位，對於端子1〇、20，扁平型導 體F容易地進入到上腕部11、21與下腕部12、22之間。 當扁平型導體F***時，鎖定配件30，如上述，鎖定部 35在與扁平型導體F干涉的位置，所以扁平型導體F以 其前端一邊將該鎖定部35推起一邊前進。鎖定腕31A， 從扁平型導體F***前，朝向後上方傾斜，所以當以鎖定 部35的傾斜的後緣35B承受來自扁平型導體F的抵接力 時，藉由朝上方的分力而朝傾斜增大的方向撓曲移位，扁 平型導體F容易前進。當扁平型導體f前進至預定位置 時，如第8圖（C)所示，鎖定部35伸入到作爲扁平型導體 F的缺口部的被卡止部F2，成爲以前緣35A可相對於該 被卡止部F2的前緣卡止的狀態。在該狀態，上述鎖定腕 31A，回到當初的傾斜度。從第8圖（C)可看出，上述鎖定 部35從上方伸入到扁平型導體F的被卡止部F2，並且雖 然該扁平型導體F相對於殼體40的卡止突起51是位於上 方，而在前後方向上述被卡止部F2是在該卡止突起51的 位置，成爲可與在端子排列方向設置在與鎖定部35不同 位置的該卡止突起5 1卡止的狀態。 -22- 201205977 (4)接著，將可動構件60，如第9圖所示朝順時鐘方 向帶到關閉位置。在該關閉位置，可動構件6 0的凸輪部 63、64、65成爲縱長姿勢，凸輪部63將端子10的被壓 部14朝上方按壓抬起，凸輪部64將端子20的被壓部24 朝上方按壓抬起，凸輪部65將鎖定配件30的被壓部34 朝上方按壓抬起。當將被壓部14、24、34抬起時，端子 10、20及鎖定配件30的上腕部11、21、31，分別將連結 部13、23、33作爲支點，利用槓桿原理，較該連結部 1 3、23、33更後方的部分朝下方傾斜，讓後端的按壓部 15、25朝下方移位。端子10、20，藉由其按壓部15、 25，將扁平型導體F朝下方按壓，提高該扁平型導體F與 端子10、20的接觸部17、27的接觸壓力而確實電連接， 得到正式的連接狀態。另一方面，鎖定配件3 0，讓朝向 後上方傾斜的鎖定腕3 1 A以減少其傾斜度的方式朝下方 撓曲移位，成爲水平位置。在該水平位置，鎖定部35朝 下方移位至與下腕部32相接，更加強與上述扁平型導體 F的被卡止部F2的卡止。並且，扁平型導體F藉由端子 10、20的按壓部15、25朝下方按壓而下降，所以成讓上 述殼體40的卡止突起51進入到上述被卡止部F2內的狀 態。扁平型導體F，朝該被卡止部F2內，鎖定部35從上 方進入，卡止突起51從下方進入，朝後方拉扁平型導體 F時的卡止力會強力作用。在該狀態，也就是在可動構件 6〇在關閉位置的狀態，凸輪部63、64，在第7圖（A)的狀 態，確實維持中立狀態，即使可動構件60些許朝任何方 -23- 201205977 向旋轉，都能回復原本的中立狀態。 (5)當扁平型導體F在正式的連接狀態時，當有不經 意的外力朝後方也就是朝拔出方向拉時，扁平型導體F的 被卡止部F2的前緣，會將鎖定配件30的鎖定部35在其 前緣35A朝後方按壓。該前緣35A是垂直的，所以與被 卡止部F2堅固地卡合，受到朝後方的反作用力，將鎖定 腕31A朝後方拉。可是，該鎖定腕31A，當可動構件60 在關閉位置時，朝向水平方向，對於水平方向沒有傾斜， 所以即使受到上述反作用力導致的拉伸力，也不會產生朝 上方的分力，維持該水平方向的姿勢，鎖定功能不會變 弱。上述前緣35A，即使沒有完全垂直，即使稍微上下傾 斜，只要贸質上爲垂直即可》 本發明，並不限定於第1圖〜第9圖所示的型態，可 進行各種變更。例如，形成於殼體的突部不需要作成卡止 突起，也可在扁平型導體的被卡止部的周邊，形成爲較該 扁平型導體用的載置面更高的型態。在第10圖的情況， 殼體40，對於扁平型導體F***時的載置面52，形成有 在鎖定配件30的周邊變高的突部51’ 。該突部51’ ，從 第1 1圖（A)、（B)可看出，形成爲從鎖定配件30的鎖定部 35的前方周邊朝前方延伸。在該型態，當可動構件60來 到關閉位置時，扁平型導體F，在端子排列範圍被朝向上 述載置面52朝下方按壓，在被卡止部F2存在的側部，藉 由上述突部51’相對地抬起，在寬度方向彎成凹狀。也 就是說，將被卡止部F2朝上抬起而與鎖定部35確實地卡 -24- 201205977 止。 接著，在上述的實施方式，鎖定配件30的上腕部31 的鎖定腕3 1 A，可動構件60在開啓位置’被壓部34沒有 從該可動構件60受到任何力’朝向後上方傾斜’當可動 構件60來到關閉位置時，上述上腕部3 1的被壓部34被 可動構件60的凸輪部65按壓，藉由讓鎖定腕3 1A成爲 水平方向的姿勢，讓鎖定部35朝下方移位’而在第12圖 所示的本實施方式，也可在開啓位置，上述上腕部31從 凸輪部63受到力，鎖定腕3 1A成爲朝後上方傾斜的姿 勢，在關閉位置，解除該力量而採取水平方向的姿勢。 在第12圖（A)，可動構件60，在操作部61的下緣且 作爲與溝部62的交界的部分，具有大致半圓形的凸輪部 65作爲加壓部。該凸輪部65，當如第12圖（A)所示的可 動構件60在開啓位置時，會滑起到：鎖定配件3 0的上腕 部31的前部的上緣處形成的被壓部34，將該被壓部34 朝下方按壓。於是，作爲上腕部31的後部的鎖定腕 3 1 A，以連結部3 3爲支點，移位成朝後上方傾斜的姿 勢。當可動構件60繞著軸部66轉動，帶到第12圖（B)所 示的關閉位置時，上述凸輪部65從被壓部34脫離，解除 鎖定腕3 1 A的移位，該鎖定腕3 1 A成爲水平狀態的姿 勢。 本發明，當對應於在扁平型導體的上面形成導體部的 情況時，端子在下腕部不需要具有接觸部，上腕部的按壓 部可兼作接觸部而與上述導體部接觸。也可混合：在下腕 -25- 201205977 部具有接觸部的端子、以及上腕部的按壓部兼作接觸部的 端子，作成所謂的交錯式配置。 【圖式簡單說明】 第1圖是顯示作爲本實施方式的電路基板用電連接 器、與***於該連接器的扁平型導體的一部分的立體圖。 第2圖是針對第1圖的連接器’可動構件在開啓位置 且扁平型導體***前的剖面圖’（A)是在端子排列方向’ 在兩種端子的其中一種端子的位置’（B)在另—種端子的 位置，（C)在鎖定配件的位置剖面的圖。 第3圖是在與第2圖（C)的剖面圖相當的位置的剖面 立體圖。 第4圖是針對第1圖的連接器的端子及在鎖定配件的 連結部的位置的左端部附近的橫剖面圖。 第5圖是顯示針對第4圖的例子的變形例的在連結部 的位置的橫剖面圖。 第6圖是顯示針對第4圖的例子的其他變形例的在連 結部的位置的縱剖面圖。 第7圖是凸輪部的原理的顯示圖，（A)是針對第2圖 (A)、（B)的凸輪部的圖面，（B)是針對變形例的凸輪部的 圖面。 第8圖是與第2圖對應的圖，顯示可動構件在開啓位 置，扁平型導體***後。 第9圖是與第2圖對應的圖，顯示扁平型導體*** -26- 201205977 後，可動構件來到關閉位置。 第10圖是顯示其他實施方式’從後方觀察連接器的 —部分的局部剖面圖。 第11圖是第10圖的連接器的縱剖面圖，（A)是顯示 端子排列方向的鎖定配件的位置，（B)是顯示在較（A)的位 置更稍偏向連接器側端的位置的剖面。 第12圖是顯示另一實施方式的在鎖定配件位置的剖 面圖，（A)顯示可動構件在開啓位置，（B)顯示其在關閉位 置0 【主要元件符號說明】 10、20 :端子 1 1、21 :上腕部 12、 22 :下腕部 13、 23 :連結部 14、 24 :被壓部 1 5、2 5 :按壓部 17、 27 :接觸部 18、 28 :連接部 3 〇 :鎖定配件 3 1 :上腕部 32 :下腕部 3 3 :連結部 34 :被壓部 -27- 201205977 3 5 :鎖定部 35A :前緣 3 5 B :後緣 40 :殻體 51 :突部（卡止突起） 60 :可動構件 63、64 :加壓部（凸輪部） F :扁平型導體 F 2 :被卡止部 -28-201205977 VI. Description of the Invention [Technical Field] The present invention relates to an electrical connector for a circuit board. [Prior Art] Such a connector is inserted into a flat conductor such as an FPC in a state parallel to the surface of the circuit board. The flat type conductor 'generally' has a latched portion formed in an ear shape or a hole shape at its side edge, and the locking portion of the lock fitting of the connector is locked to the locked portion, even if inadvertently pulled out The external force in the direction acts on the flat conductor and prevents it from falling off. Patent Document 1 is provided with a yoke-shaped locking fitting (locking member) having an upper wrist portion and a lower wrist portion connected to each other by a connecting portion, and an upper wrist portion of the locking fitting, The claw portion is formed to be horizontally extended toward the rear side of the insertion side of the flat conductor, and a claw-shaped locking portion (engagement portion) is formed at the rear portion. The locking portion is formed in a substantially inverted triangle shape that protrudes downward toward the flat conductor side, and when the connector is used, when the movable member (slider) moves toward the closed position for pressing the flat conductor toward the contact portion of the terminal The upper arm portion of the lock fitting is lifted by the cam portion of the movable member at the front portion thereof, and the rear portion of the upper arm portion is inclined downward by the lever principle, so that the lock portion is displaced downward. As a result, the locking portion is locked from the upper side toward the locked portion of the flat conductor inserted between the upper arm portion and the lower arm portion, thereby preventing the flat type conductor from being inadvertently detached. [Prior Art] [Patent Document] - 5 - 201205977 [Patent Document 1] JP-A-2004-221067 [Problem to be Solved by the Invention] In the connector of Patent Document 1, in order to prevent inadvertent dropping of the flat conductor, The lock portion that is locked with the locked portion of the flat conductor has no free state of receiving any force from the movable member at the upper arm portion of the lock fitting, and is provided at the rear of the upper wrist portion extending rearward from the joint portion of the lock fitting. . Then, the flat portion of the upper wrist portion is in a displaced state in which the flat type conductor at the time of use of the connector has a formal contact pressure and comes into contact with the contact portion of the terminal, and is inclined rearward and downward. That is, by the front portion of the upper wrist portion facing upward, the force from the movable member located at the closed position causes the rear portion of the upper wrist portion to be inclined with the joint portion as a fulcrum, and as a result, the lock portion provided at the rear portion of the upper wrist portion The downward displacement makes it possible to secure the amount of engagement with the locked portion of the flat conductor. However, when the flat conductor is inadvertently pulled toward the rear (extraction direction) by a strong force, that is, when the upper wrist is pulled in the horizontal direction extending toward the rear, the rear portion of the upper wrist inclined downward is used by the above force. The upward direction of the force, and the return to the horizontal direction. This means that the original inclination is no longer the same, and the locking portion is moved upward, that is, the amount of engagement with the locked portion is reduced. Further, the lock portion is formed in a substantially inverted triangle shape. Then, when the flat conductor is pulled in the pull-out direction, the locked portion of the flat conductor pulls out the force in the direction toward the front bevel edge -6 - 201205977 of the substantially inverted triangular locking portion. The force will produce an upward force component on the front bevel, and as a result, the rear portion of the upper wrist will be lifted upward, so that the amount of displacement of the rear portion, that is, the locking portion, is further reduced. In other words, the amount of locking of the locking portion and the locked portion is greatly reduced, or the flat conductor is inadvertently dropped due to the fact that the locking portion does not fall off. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electrical connector for a circuit board, in which an electrical connector for a circuit board using a locking fitting is inadvertently strong in a state in which the flat conductor is in a genuinely connected state. It acts to pull out in the direction in which the flat conductor is pulled out, and it can surely prevent falling off. [Means for Solving the Problem] The electrical connector for a circuit board according to the present invention is an electrical connector that is disposed on a circuit board and electrically connects the inserted flat conductor to the circuit board, and has: a metal is provided a contact portion of the flat plate surface of the plate that is in contact with the flat conductor, a connection portion that is connected to the circuit board, a pressing portion that presses the flat type conductor, and a force that receives the force that displaces the pressing portion in the pressing direction. a plurality of terminals arranged in a direction perpendicular to the plate surface; and a locking portion that maintains a flat plate surface of the metal plate and is locked with the flat conductor and is locked in the same manner as the terminal; a pressed portion for receiving a force for displacing the locking portion is disposed as a locking fitting having a plate surface parallel to the terminal; and a receiving space for receiving the connecting portion of the inserted flat conductor is received in 201205977, in the above contact a portion in contact with the flat type conductor holding the terminal and holding the housing of the locking fitting; and being provided for applying force to the terminal and The pressing portion of the pressed portion of the locking fitting can be moved between an open position at which the flat type conductor can be inserted, a contact portion that presses the flat type conductor toward the terminal, and a closed position in which the lock portion is brought to the locked position. The movable member; the terminal and the lock fitting are formed by connecting the upper arm portion and the lower arm portion extending in the longitudinal direction of the flat conductor in the longitudinal direction by a connecting portion, and the terminal is formed. The upper arm portion has a pressed portion at a front portion of the front side in the insertion direction of the flat type conductor from the joint portion, and has a pressing portion at the rear portion, the upper end portion of the lock fitting has a pressed portion at the front portion and a protruding locking portion at the rear portion . In the electrical connector for a circuit board, in the upper wrist portion of the locking fitting of the present invention, when the movable member is in the open position, the range from the connecting portion to the locking portion extends rearward and upward, and the locking portion protrudes downward, the upper wrist portion When the movable member is in the closed position, the range from the connection portion to the lock portion is a posture in the direction in which the flat conductor is inserted and removed. In the present invention of this configuration, the upper arm portion of the lock fitting is inclined in a free state before the insertion of the flat type conductor from the joint portion to the lock portion, and when the flat type conductor is inserted into the connector, The force received by the movable member from the closed position is in a locked state, and is a posture in which the flat conductor is inserted and removed, that is, displaced in the horizontal direction. Therefore, even when the connector is used, even if the flat conductor is subjected to an inadvertent external force in the pull-out direction, the external force is directed in the horizontal direction: the upper wrist portion extending in the horizontal direction toward the rear of the joint portion -8-201205977, so The external force acting on the upper wrist does not produce an upward force component, and the horizontal posture of the upper wrist in the above locked state does not change. This means that the amount of lock does not change and the positive lock state can be maintained. In the present invention, the pressurizing portion is formed as a cam portion that is oriented in a direction for increasing the contact pressure of the contact portion between the flat conductor and the terminal, and the pressing portion of the terminal is displaced, and the locking fitting is The locking portion is displaced in the locking direction, and is supported by at least one of the terminal and the housing to be movable to apply a force to the closed position of each of the pressed portions, and apply a force to the pressed position in the closed position. The cam portion is disposed at the terminal position and the position of the locking fitting in the terminal arrangement direction. In the present invention, the locking portion protrudes to a position where the vertical member interferes with the flat conductor when the movable member is in the open position. The rear edge of the lock portion is formed to be inclined forward and downward, and is formed as an abutting inclined portion that abuts against the front end of the flat conductor at the time of insertion. Thereby, the amount of protrusion of the lock portion is increased to a position where the lock portion interferes with the flat conductor, and the amount of engagement with the locked portion of the flat conductor can be ensured to be large enough, and when the flat type conductor is inserted, The abutting inclined portion receives the abutting force from the flat conductor and is displaced upward. Therefore, the flat conductor can be easily inserted. In the present invention, the front end of the locking portion ' is formed to be inclined vertically downward or toward the front. Thereby, when the front edge of the lock portion is locked with the locked portion of the flat conductor, it can be surely and strongly locked. -9 - 201205977 [Effect of the Invention] As described above, the upper arm portion of the lock fitting having the lock portion is formed such that the free state before the insertion of the flat type conductor faces the rear portion, compared to the insertion and removal direction of the flat type conductor In other words, the horizontal direction extends upward, and the use state after the insertion of the flat conductor is horizontally displaced downward toward the rear, thereby locking the locking portion and the locked portion of the flat conductor. Therefore, even if the inadvertent force acts in the direction in which the flat conductor is pulled out, the upper arm portion maintains the pull-out direction, that is, the horizontal direction, and the locking amount of the lock portion does not decrease. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Fig. 1 is a perspective view showing the entirety of the electrical connector for a circuit board (hereinafter referred to as "connector") of the present embodiment and the connection portion of the front end portion of the flat conductor to which the connector is connected. The flat conductor F has a cover portion removed from the front end portion and a conductor portion (not shown) is exposed, and the sheet-shaped reinforcing member F1 is attached to the upper portion of the flat conductor F to protrude toward the connector 1 from the conductor portion. The reinforcing member ' is formed with a notched latched portion F2 on the left and right side edges of the front side of the conductor portion. The connector 1' has terminals 1 and 20 formed of a metal plate, and a lock fitting 30. The housing 40 that holds the member and the movable member 60 that is rotatably supported by the housing 40 » -10- 201205977 The terminals 10 and 20 and the locking fitting 30 are both formed to maintain the flat surface of the metal plate. The terminal is composed of two types of terminals 10, 20', which are arranged at right angles in a direction perpendicular to the plate faces of the terminals 10, 20, and are provided adjacent to the terminals 1A, 20 located at both ends in the same direction, and the lock fitting 30 is provided. The two types of terminals 1A and 20 are formed in a cross-sectional shape as shown in Figs. 2(A) and (B), and have upper arms 11 extending in the lateral direction. 21, the lower wrist portions 12, 22, and the connecting portions 13, 23 that connect the two wrist portions in the middle portion in the longitudinal direction. The upper arm portions 11 and 21 are formed with pressure-receiving portions 14 and 24 that are pressed by cam portions of a movable member to be described later, and a flat-shaped conductor that is pressed from above in a rear portion of the front side of the flat conductor F. Pressing portions 15, 25 In the front portion of the lower arm portions 1, 2, 22, the support portions 16 and 26' for the cam are formed, and the contact portions 17, 27 for contacting the conductor portions of the flat conductor are formed in the rear portion. Further, the lower arm portions 12 and 22 are provided with connecting portions 18 and 28 for soldering to the circuit board. The above description is for the common points of the two types of terminals 10 and 20, and then the differences will be described. As shown in FIG. 2(Α), the upper arm portion 11' of the terminal 10 is formed as a recessed portion by the pressed portion 14 provided at the lower edge of the front portion, and extends long from the connecting portion 13 toward the rear and is provided at the rear end thereof. There is a protruding pressing portion 15. The upper arm portion 21 of the opposite terminal 20 is formed by a straight edge portion at a lower edge of the front portion as shown in FIG. 2 (Β), and extends rearward from the connecting portion 23. The portion is shorter than the case of the above-mentioned terminal 1A, and a protruding pressing portion 25 is provided at the rear end thereof. -11 - 201205977 The lower arm portion 1 2 of the terminal 10 is formed with a connection 18 extending from the connection 13 toward the front and extending outside the casing 40 as shown in Fig. 2(a). The connecting portion 18 has a groove-like fixing 18A that is recessed into the kidney curve downward. A portion between the connecting portion 13 and the connecting portion 18 is formed with a support portion 16 that is formed in a concave shape for accommodating the cam portion. On the opposite side of the lower arm portion 22 of the end 20, as shown in Fig. 2(B), the upper edge of the portion extending from the connecting portion 23 is formed into a substantially straight edge portion to form a support 26, which is rearward. The extended portion extends beyond the casing 4 and has a connecting portion 28 fixing portion 28A in a form substantially symmetrical with respect to the connecting portion 18 of the upper terminal 10. The lower arm portion 22' of the terminal 20 is provided at the intermediate portion of the junction portion 23 and the connecting portion 28 in the front-rear direction at a position corresponding to the pressing 25 of the upper arm portion 21, and is provided with a projecting contact portion 27» Terminals 1 and 20 are attached to the casing 40 from the front and the terminals 20 from the rear as shown in Fig. 1, and are arranged to be aligned with each other. As shown in FIGS. 2(C) and 3, the lock fitting 30 is formed in a cross-shaped shape similar to the sub-20, and has an upper wrist 31 and a lower wrist 32, both of which have the long axis, similarly to the terminal 20. The middle portion of the direction is connected by a connecting portion. In the front portion, the upper arm portion 31 and the lower arm portion 32 are formed in the same shape as the terminal 20, and the pressed portion 34' is formed on the lower wrist portion at the front portion of the upper arm portion 31. The front portion of 32 forms a support portion 36 having a substantially straight edge portion. The rear portion of the lock fitting 30 has a difference in the above-described terminal 20. The rear portion of the upper arm portion 31 has a longer length than the end portion 20, and is formed at a position substantially the same as that of the terminal 1 〇, and is formed with a rearward portion of the rear portion and a portion of the front end portion of the joint portion. 12- 201205977 locks the wrist 31A. At its rear end, there is provided a large protruding locking portion 35 that faces downward. The lock wrist 31A extends obliquely toward the rear upper side. When the pressed portion 34 is pressed by the cam portion of the movable member, which will be described later, in the closed position, the lock portion 31A is displaced upward by the lever principle 'with the connecting portion 33 as a fulcrum, and as a result, it becomes To a roughly horizontal position. In this case, the locking wrist 31A may be a posture that can be substantially referred to as a horizontal posture even if it is not at a full horizontal position or a slight inclination. For example, 'When the movable member has an inclined locking wrist when in the open position', when the movable member comes to the closed position, although the inclination angle becomes smaller and becomes close to the horizontal position, there is still a slight inclination, or even if the horizontal position is exceeded. On the opposite side, a slight tilt is generated, and in the case where the inclination is small, it can be said to be substantially in a horizontal position. A projecting locking portion 35 provided at the rear end of the lock arm 31A has a front edge 35A formed as a substantially vertical edge and a rear edge 35B inclined toward the front lower side. In the state in which the upper arm portion 31 does not receive the force from the cam portion in the pressed portion 34, when the flat conductor F is inserted, the locking portion 35 is in the height direction that interferes with the front end edge of the flat conductor F. relationship. At the rear end of the lower arm portion 32, a fixing leg 38 of the same type as the connecting portion 28 of the terminal 20 is provided, and a groove-shaped fixing portion 38A is formed here. The case 40 for holding the above-mentioned terminals 10, 20 and the lock fitting 30 is made of an electrically insulating material, as shown in Fig. 1, and is formed into a relatively flat substantially rectangular outer shape, as shown in Fig. 2 (front view) The right and left sides of the middle are formed with terminal holding grooves 41 and 42 and lock fitting holding grooves 43 for holding the terminals 10 and 20 and the lock fitting 30, respectively. The terminal protects the 13-201205977 holding groove 41, 42 and the locking accessory holding groove 43 to hold the plate-shaped terminals l〇, 2〇 and the locking fitting 30 in a manner to maintain a slight gap with the plate surface thereof. 2 is a slit formed at a right angle to the paper surface as a groove width corresponding to the thickness of the plate. With respect to the terminal holding grooves 41, 42 and the lock fitting holding groove 43, the terminals 10, 20 and the lock fitting 30 are locked at the upper and lower edges by the projections 19, 29 and the projections 39 formed at the lower edges thereof. Keep it. The terminal holding grooves 41 and 42 and the lock fitting holding groove 43 communicate with the front space 44 which is largely notched upward in the front portion of the casing 40, and the flat conductor F formed from the intermediate position toward the rear in the front-rear direction. The insertion groove 45 as the accommodating space is connected. By the formation of the insertion groove 45, the casing 40 has an upper wall 46 and a lower wall 47 at its upper and lower positions. On the surfaces of the upper wall 46 and the lower wall 47, the terminal holding grooves 41 and 42 serve as open grooves. Type. The upper wall 46 is formed in a slit shape so that the groove portion 48 into which the locking arm 31A of the lock fitting 30 enters is inserted up and down at the position of the lock fitting 30. The lower wall 47 is formed in a substantially tapered shape with respect to the terminal 10, and is formed as a holding portion 47A in which the groove-shaped fixing portion 18A of the terminal 10 is fitted, and is formed at the rear end with respect to the terminal 20 and the lock fitting 30. The terminal 20 and the holding portion 47A for each of the fixing portions 28A and 38A of the lock fitting 30. The terminal holding groove 41 for the terminal 10 that is opened upward by the lower wall 47 is configured to allow the rear portion of the lower arm portion 12 of the terminal 10 to be bent downward, so that the groove bottom 4 1 A is formed in a tapered shape toward the rear. The depth of the groove becomes larger in order. The housing 40 is determined from the first drawing, and is provided at both end portions in the terminal arrangement direction with a locking fitting 30 - 14 - 201205977 which is longer than the rear end edge of the range including the terminal arrangement range. Extension 49. As shown in FIG. 2, the extending portion 49 has a U-shaped shape as viewed from the rear, and accommodates both sides in the width direction of the flat conductor F from the rear (the range in which the locking portion F2 exists in the width direction). In the manner of the both ends of the insertion groove 45 in the width direction. The extending portion 49 has tapered inlet surfaces 4 9A and 49B on the upper and lower entrance portions. The inner side surface and the upper and lower inner surfaces of the insertion groove 49 of the extending portion 49 are formed with a restricting portion 50 for restricting the position of the inserted flat conductor F in the width direction and the vertical direction. In the lower inner surface of the same height as the mounting surface of the flat conductor insertion, the locking projection 51 as a projection that is locked to the locked portion F2 of the flat conductor F is provided. . The locking projection 51 is a position deviated from the lock fitting 30 in the terminal arrangement direction as seen from the first drawing, and is provided in the lock portion with the lock fitting 30 as viewed from the second (C) in the front-rear direction. 35 is roughly the same location. The locking projection 51 has a trapezoidal longitudinal section, the leading edge 51A is a vertical surface, and the trailing edge 51B is a tapered surface. The upper surface 51C of the locking projection 51 is a flat surface as shown in FIG. 2(C) when the movable member is in the open position, and the height is set to be lower than the lower end of the locking portion 35, but by When the movable member comes to the closed position and the lock portion 35 is displaced downward, it is located above the lower end of the lock portion 35. When the movable member is in the open position, as shown in Figs. 2(A) and (B), the upper surface of the locking projection 51 is located at a position closer to the lower wrist portions 12, 22 of the terminals 10, 20. The upper ends of the portions 17, 27 are further below. In the present invention, when the movable member comes to the closed position, the locking portion 3 5 - 15059059077 and the locking projection 51 are complementaryly locked from above and below with respect to the engaged portion F2 of the flat conductor. Therefore, as in the above example, when the movable member comes to the closed position, the upper surface 51C of the locking projection 51 does not have to be located above the lower end of the locking portion 35, or may be located lower than the lower end of the locking portion 35, or may be Obtain the effect achieved by the above supplement. Further, in the present invention, the locking projection may be formed not by the housing, or may be formed by other members held by the housing, for example, a reinforcing fitting, and 'may also have a locking wrist. The fitting body is formed to face the locking portion. As described above, the terminals 10, 20 and the lock fitting 30 are firmly held at the groove bottoms of the terminal holding grooves 41, 42 and the lock fitting holding groove 43, and a slight gap is formed between the terminals and the inner surface of the groove, and the terminal is formed. 1 〇, 20 and the gap between the plate faces of the locking fitting 30, by the positions of the terminals 1 〇, 20 and the locking fitting 30, there is a difference in size, that is, the groove width is wide and narrow. As shown in FIG. 4 showing a cross section of the height of the positions of the connecting portions 13, 23 and 33, the terminal holding grooves 41 and 42 and the lock fitting holding groove 43 are provided in the respective regions including the connecting portions 13, 23 and 33. The groove width is larger than the groove width in other regions, and the wide portions 41A, 42A, and 43A are formed. Between the region '' of the wide portions 41A, 42A, 43A and the U and the plates 10 and 20 and the plate surface of the lock fitting 30, gaps hi, h2, h3 which are wider than the other regions are formed. In the present embodiment, hi = h2. The positions of the terminals 1 〇, 20 ′ wide portions 41 A and 42A which are alternately arranged in the terminal arrangement direction are shifted in the front-rear direction (the up-down direction in Fig. 4). In this Fig. 4, it is clear that the above-described locking projection 51 is displaced from the locking fitting 30 in the direction of the terminal arrangement -16 - 201205977, and is close to the locking fitting 30. In the example of the fourth embodiment, the connecting portions 13 and 23 of the terminals 10 and 20 are provided at positions different in the front-rear direction, and the wide portions 41A and 42A are provided in the regions corresponding to the connecting portions 13 and 23 in the front-rear direction. The positions of the wide portions 41A, 42A are also shifted in the front-rear direction. On the other hand, as different types, the connecting portions 1 3 and 2 3 of the terminals 1 〇 and 20 are formed as shown in FIG. 5 when the front and rear directions are at the same position, and the wide portions 41A and 42A can be formed. The front portion is shifted to the wide portion 4 1 A, 42 A in order to pass through the tapered portion. Further, the connecting portions 1 3 and 2 3 have a length in the vertical direction corresponding to the interval between the two wrist portions as the type in which the upper arm portions 1 1 and 2 1 and the lower arm portions 1 2 and 2 2 are connected, so even the connection is made. The portions 1 3 and 2 3 are at the same position in the front-rear direction, and as shown in Fig. 6, the wide portions 41A and 42A are provided at positions different in the vertical direction, and the upper and lower portions are shifted to form a large interval hi and h2. As shown in the figure, the connector 1 is rotatably provided with a movable member 60 made of an electrically insulating material. The movable member 60 is located at a front space 44 formed at a front portion of the casing 40. The movable member 60 extends in a width (a size in the terminal arrangement direction) of the casing 40, and is turned from the open position in the vertical posture shown in Figs. 2(A) to (C) to the horizontal direction. The closed position of Fig. 9 (A) to (C) is free to rotate. The movable member 60 is for applying a downward displacement to the rear portions of the upper end portions 1 1 , 2 1 , and 3 of the terminals 10 and 20 and the lock fitting 30. The so-called open position is to generate the shift. Previously, the flat conductor F can be inserted into the movable member 60 of the insertion groove 45 of the casing 40, and on the other hand, the so-called closed position is displaced, and the inserted flat conductor F is pressed downward. -17- 201205977 The location of the entry. In the open position, the movable member 60 has an operation portion 61 that protrudes upward from the front space 44 as shown in FIGS. 2(A) to (C), and is formed to be penetrated forward and backward at a portion below the operation portion 61. A slit-shaped groove portion 62. The groove portion 62 is formed at a position corresponding to each of the terminals 1A, 20 and the lock fitting 30 in the terminal arrangement direction, and the groove width of the groove portion 62 (the second drawings (A) to (C) are at right angles to the paper surface. The in-groove width dimension of the direction is slightly larger than the corresponding plate thicknesses of the above-described terminals 10, 20 and the locking fitting 30. In the lower portion of the groove portion 62, cam portions 63, 64, and 65 corresponding to the respective terminals 10, 20 and the lock fitting 30 are provided as the pressurizing portions for the terminals 1A, 20 and the lock fitting 30. Each of the cam portions 63, 64, and 65 is formed to connect the opposing groove inner surfaces of the groove portion 62 to each other. As shown in FIG. 2(A), the cam portion 63 provided corresponding to the terminal has a long circular cross-sectional shape when the movable member 60 is in the open position, and is located at the lower arm portion 12 of the terminal 10. The concave support portion 16 formed at the upper edge of the front portion is in a non-contact state with respect to the pressed portion 14 of the upper arm portion 11 with a space therebetween. The lateral length of the cam portion 63 in Fig. 2(A) is set to be larger than the interval between the support portion 16 and the pressed portion 14 in the same drawing. Then, when the movable member 60 comes to the closed position, as will be described later, the cam portion 63 is in the vertically long posture, and the pressed portion 14 is pressed upward to be elastically displaced. As shown in FIG. 2(B), the cam portion 64 provided corresponding to the terminal 20 has the upper right corner portion of the horizontally long oblong cam 63 for the terminal 10 when the movable member 60 is in the open position. The angulated section -18-201205977 is formed to be in contact with the support portion 26. The height dimension in this figure is also larger than the above-described cam portion 63. Then, the cam portion 64 has a semicircular shape on the left side, a flat surface on the right side, and a lower circular shape in the lower portion thereof. The cam portion 64 has a spaced non-contact state with respect to the pressed portion 24 formed at the upper arm portion 21 of the terminal 20 when the movable member 6 is in the open position, when the movable member 60 comes to the closed position. In the vertically long posture, the pressed portion 24 is pressed upward to be elastically displaced. The cam portion 65 provided corresponding to the lock fitting 30 has a cross-sectional shape similar to that of the cam portion 64 described above, and even if the movable member 60 is in the open position, the pressed portion 34 formed at the upper arm portion 31 of the lock fitting 30 is brought into contact with each other. . When the movable member 60 comes to the closed position, the cam portion 65 presses the pressed portion 34 to be elastically displaced. The cam portions 63, 64 corresponding to the two types of terminals 10, 20, respectively, when the movable member 60 comes to the closed position, is viewed from the direction of its rotation axis, that is, in the direction perpendicular to the paper surface in Fig. 2, as The positional relationship of Fig. 7(A). In the seventh diagram (A), when the movable member 60 is in the closed position, the cam portion 63 and the cam portion 64 in the vertically long posture are subjected to the same force reaction force from the pressed portion 14 of the terminal 1〇 and the support portion 16 respectively. a and B, the pressed portion 24 of the terminal 20 and the support portion 26 receive the reaction forces C and D of the same force, respectively. The reaction forces A and B of the cam portion 63 toward one of them are aligned on the two lines X passing through the rotation center P of the cam. On the other hand, the cam portion 64 on the other side is wider than the cam portion 63, and the arc of the upper end is biased to the right side, so that the reaction force C from the pressed portion 24 is located at a reaction force A higher than that of the cam portion 63. Further, -19-201205977 The reaction force from the support portion 26 acts on the flat bottom surface of the cam portion 64. Therefore, the center of the reaction force D becomes its center position, and as a result, it has the line of action on the same line γ as the above-described reaction force C. . That is, when the cam portions 63, 64 are viewed at the same time, the reaction forces A and B are balanced on a line X, and the reaction forces C and D are balanced on the other lines Y leaving the line X. Then, both of the cam portions 63 and 64 are received at positions away from the rotation center P of the cam, and the reaction forces A and B which are balanced in the vertical direction and the reaction forces C and D' which are balanced in the vertical direction are The movable member 60 at the closed position is in a neutral state in the closed position. The movable member 60 is displaced from the neutral state toward the open position direction or the opposite direction, because the moments caused by the reaction forces A, B, and C, D on the two lines X, Y return to the original Neutral state, can be determined to remain neutral. In the neutral state, the reactional forces B and D of the two cam portions 63 and 64 can be obtained by replacing the positional relationship of the reaction forces A and C. In Fig. 7(B), when the movable member is in the closed position, the two cam portions are formed such that the long axes of the two cam portions 63, 64 intersect, and the reaction forces A and B of one of the cam portions 63 are changed. The lines of action are staggered from each other and the other side of the cam portion 64 is reversed. The lines of action of the forces C and D are also staggered from each other. However, when the two kinds of cam portions 63 and 64 are observed at the same time, the four reaction forces A, B, C, and D are as compared with the case of the seventh figure (A), as long as the positions of the reaction forces B and D are reversed. A balance is achieved as in Figure 7 (B). In this case, the neutral state is also very stable. Next, the method of using the circuit board of the present embodiment for electrical connection -20-201205977 will be described. (1) First, the connector 1 as shown in Fig. 1 is placed at a predetermined position on a circuit board (not shown), and the connecting portions 18 and 28 of the terminals 10 and 20 and the fixing legs 38 of the locking fitting 30 are placed. Soldering with each corresponding portion of the circuit board. The solder may rise from the respective plate faces of the terminals 1A, 2B and the lock fitting 30 from the above-described connecting portions 18, 28 and the fixing legs 38 formed at the lower arm portions 1, 2, 22, and 3 2 . However, the terminals 10, 2 and the lower arm portions 1, 2, 22, and 3 of the lock fitting 30 are connected to the upper arm portions 1 1 , 2 1 , and 3 1 only by the connecting portions 1 3 , 2 3 , and 3 3 , so Even if the solder rises, the solder must pass through the joint portions 13, 23, 33 in order to reach the upper wrist portions 1 1, 21, 3 . However, as seen from FIGS. 4 to 6 , the casing 40 has a large gap in the wide portion 41 , 42 8 ' 43 8 with respect to the joint portions 13 , 23 , 33 , so that the solder rises in the Stop at the stop and will not reach the upper wrists 11, 21, 31. This effect of preventing the solder from rising can also be obtained for the flux. (2) Next, as shown in Fig. 2 (A) to (C), the movable member 60 is brought to the vertical opening position to prepare the insertion of the flat conductor F. In a state where the movable member 60 is in the open position, the pressed portions 14, 24, 34' of the terminals 1 and 20 and the lock fitting 30 are not subjected to any force from the corresponding cam portions 63, 64, 65 of the movable member 60, and thus, The pressing portions 15, 25, 35 are not displaced at the initial position, and the terminals 1A, 20' are in a state in which the flat conductor F is easily received. The lock fitting 30 is at the position where the pressing portion 35 thereof interferes with the insertion route of the flat conductor F as described above. (3) Then, as shown in Fig. 8 (A) to (C), the flat conductor F is inserted into the insertion groove 45 of the -21 - 201205977 case 40. At this time, the flat conductor F is restricted to the upper and lower sides and the side by the restricting portion 50 of the extending portion 49 provided in the casing 40 extending rearward before the terminals 10 and 20 are in contact with each other. The predetermined position is inserted. Thus, the terminals 10, 20 do not receive excessive force from the flat conductor F when inserted. When the flat type conductor F is inserted, as described above, the movable member 60 is in the open position, the pressing portions 15, 25 of the terminals 10, 20 are not displaced downward, and the flat type conductor F is easily entered for the terminals 1, 20, It is between the upper wrists 11, 21 and the lower wrists 12, 22. When the flat conductor F is inserted, the lock fitting 30 is at a position where the lock portion 35 interferes with the flat conductor F as described above, so that the flat conductor F advances while pushing the lock portion 35 with the tip end thereof. Since the lock arm 31A is inclined toward the rear upper side before being inserted from the flat type conductor F, when the abutting force from the flat type conductor F is received by the inclined rear edge 35B of the lock portion 35, the tilt is upward by the component force upward. In the increased direction, the deflection is shifted, and the flat conductor F is easily advanced. When the flat conductor f is advanced to a predetermined position, as shown in Fig. 8(C), the locking portion 35 projects into the engaged portion F2 which is a notch portion of the flat conductor F, so that the leading edge 35A can be opposed to the The state in which the leading edge of the locking portion F2 is locked. In this state, the above-described locking wrist 31A returns to the original inclination. As can be seen from Fig. 8(C), the above-described locking portion 35 projects from above into the engaged portion F2 of the flat type conductor F, and although the flat type conductor F is located with respect to the locking projection 51 of the housing 40 In the front-rear direction, the locked portion F2 is in the state of the locking projection 51, and is locked in a state in which the locking projection 51 is provided at a position different from the locking portion 35 in the terminal arrangement direction. -22-201205977 (4) Next, the movable member 60 is brought to the closed position in the clockwise direction as shown in Fig. 9. In the closed position, the cam portions 63, 64, and 65 of the movable member 60 are in the vertically long posture, the cam portion 63 pushes up the pressed portion 14 of the terminal 10 upward, and the cam portion 64 presses the pressed portion 24 of the terminal 20. Pressing up and up, the cam portion 65 presses and raises the pressed portion 34 of the lock fitting 30 upward. When the pressed portions 14, 24, 34 are lifted up, the terminals 10, 20 and the upper wrist portions 11, 21, 31 of the locking fitting 30 respectively use the connecting portions 13, 23, 33 as fulcrums, and the lever principle is used for the connection. The rear portion of the portions 1 3, 23, and 33 is inclined downward, and the pressing portions 15 and 25 at the rear end are displaced downward. The terminals 10 and 20 press the flat conductor F downward by the pressing portions 15 and 25, thereby increasing the contact pressure between the flat conductor F and the contact portions 17 and 27 of the terminals 10 and 20, and are electrically connected. Connection status. On the other hand, the lock fitting 30 is locked so that the lock wrist 3 1 A inclined toward the rear upper side is deflected downward toward the lower side so as to reduce the inclination thereof, and becomes a horizontal position. At this horizontal position, the lock portion 35 is displaced downward to be in contact with the lower arm portion 32, and the engagement with the locked portion F2 of the flat conductor F is further enhanced. Further, since the flat conductor F is pressed downward by the pressing portions 15 and 25 of the terminals 10 and 20, the locking projection 51 of the casing 40 is allowed to enter the locked portion F2. The flat conductor F enters the locked portion F2, and the lock portion 35 enters from above, and the locking projection 51 enters from below, and the locking force when the flat conductor F is pulled rearward strongly acts. In this state, that is, in the state where the movable member 6 is in the closed position, the cam portions 63 and 64 are maintained in the neutral state in the state of Fig. 7(A), even if the movable member 60 is slightly toward any side -23-201205977 When you rotate, you can return to the original neutral state. (5) When the flat conductor F is in the officially connected state, when the unintended external force is pulled toward the rear, that is, in the pull-out direction, the leading edge of the locked portion F2 of the flat conductor F will lock the fitting 30. The lock portion 35 is pressed rearward at its front edge 35A. Since the leading edge 35A is vertical, it is strongly engaged with the locked portion F2, and receives a reaction force toward the rear, and pulls the locking arm 31A rearward. However, the lock arm 31A does not tilt in the horizontal direction when the movable member 60 is in the closed position, so that even if the tensile force due to the reaction force is received, the upward force component does not occur, and the lock is maintained. In the horizontal direction, the lock function does not become weak. The front edge 35A is not completely vertical, and even if it is tilted up and down, it is only necessary for the trade to be vertical. The present invention is not limited to the types shown in Figs. 1 to 9, and various modifications can be made. For example, the projection formed in the casing does not need to be a locking projection, and may be formed in a higher shape than the mounting surface for the flat conductor in the periphery of the locked portion of the flat conductor. In the case of Fig. 10, the housing 40 is formed with a projection 51' which is raised around the lock fitting 30 with respect to the mounting surface 52 when the flat conductor F is inserted. The projection 51' is formed to extend forward from the front periphery of the lock portion 35 of the lock fitting 30 as seen in Figs. 1(A) and 1(B). In this configuration, when the movable member 60 comes to the closed position, the flat conductor F is pressed downward toward the mounting surface 52 in the terminal array range, and the side portion where the locked portion F2 exists is caused by the above-mentioned protrusion The portion 51' is relatively raised and bent in a concave shape in the width direction. That is, the locked portion F2 is lifted up and the lock portion 35 is surely stuck -24-201205977. Next, in the above-described embodiment, the locking wrist 3 1 A of the upper arm portion 31 of the locking fitting 30, the movable member 60 is tilted in the open position 'the pressed portion 34 does not receive any force from the movable member 60' toward the rear upper side. When the member 60 comes to the closed position, the pressed portion 34 of the upper arm portion 31 is pressed by the cam portion 65 of the movable member 60, and the locking portion 35 is displaced downward by the posture of the locking arm 31A in the horizontal direction. Further, in the present embodiment shown in Fig. 12, in the open position, the upper arm portion 31 may receive a force from the cam portion 63, and the lock wrist 31A may be inclined upward and upward, and in the closed position, the force is released. The posture in the horizontal direction. In Fig. 12(A), the movable member 60 has a substantially semicircular cam portion 65 as a pressurizing portion at a lower edge of the operation portion 61 and at a boundary with the groove portion 62. When the movable member 60 as shown in Fig. 12(A) is in the open position, the cam portion 65 slides to the pressed portion 34 formed at the upper edge of the front portion of the upper arm portion 31 of the locking fitting 30. The pressed portion 34 is pressed downward. Then, the locking arm 3 1 A, which is the rear portion of the upper arm portion 31, is displaced in a posture inclined upward toward the upper side with the connecting portion 3 3 as a fulcrum. When the movable member 60 is rotated about the shaft portion 66 and brought to the closed position shown in Fig. 12(B), the cam portion 65 is disengaged from the pressed portion 34, and the displacement of the locking wrist 3 1 A is released. 3 1 A becomes a horizontal posture. According to the present invention, when the conductor portion is formed on the upper surface of the flat conductor, the terminal does not need to have a contact portion at the lower arm portion, and the pressing portion of the upper arm portion can serve as a contact portion to come into contact with the conductor portion. It is also possible to mix: the terminal having the contact portion at the lower wrist -25-201205977 and the terminal portion of the upper wrist portion serving as the contact portion, so as to be arranged in a so-called staggered configuration. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a part of a flat-type conductor inserted into the connector as an electrical connector for a circuit board of the present embodiment. Fig. 2 is a cross-sectional view of the connector 'the movable member in the open position and before the flat type conductor is inserted' in Fig. 1 (A) is the position of one of the terminals of the two terminals in the terminal arrangement direction' (B) At the position of the other terminal, (C) is a cross-sectional view of the position of the locking fitting. Fig. 3 is a cross-sectional perspective view at a position corresponding to the cross-sectional view of Fig. 2(C). Fig. 4 is a cross-sectional view showing the vicinity of the left end of the terminal of the connector of Fig. 1 and the position of the connection portion of the lock fitting. Fig. 5 is a cross-sectional view showing the position of the joint portion in a modification of the example of Fig. 4. Fig. 6 is a vertical cross-sectional view showing the position of the joint portion in another modification of the example of Fig. 4. Fig. 7 is a view showing the principle of the cam portion, (A) is a view of the cam portion of Figs. 2(A) and (B), and Fig. 7(B) is a view showing a cam portion of the modified example. Fig. 8 is a view corresponding to Fig. 2, showing the movable member in the open position, after the flat type conductor is inserted. Fig. 9 is a view corresponding to Fig. 2, showing that the movable member is brought into the closed position after the flat type conductor is inserted -26-201205977. Fig. 10 is a partial cross-sectional view showing a portion of the other embodiment 'viewing the connector from the rear. Figure 11 is a longitudinal sectional view of the connector of Figure 10, (A) showing the position of the locking fitting in the direction in which the terminals are arranged, and (B) showing the position slightly biased toward the side of the connector at the position (A). section. Figure 12 is a cross-sectional view showing the position of the locking fitting of another embodiment, (A) showing the movable member in the open position, and (B) showing its in the closed position 0 [Major component symbol description] 10, 20: Terminal 1 1 21: Upper wrist 12, 22: Lower wrist 13, 23: Connecting portion 14, 24: Pressed portion 1 5, 2 5: Pressing portion 17, 27: Contact portion 18, 28: Connecting portion 3 锁定: Locking fitting 3 1 : upper wrist 32 : lower wrist 3 3 : connecting portion 34 : pressed portion -27 - 201205977 3 5 : locking portion 35A : leading edge 3 5 B : trailing edge 40 : housing 51 : projection (locking Projection) 60: movable members 63, 64: pressurizing portion (cam portion) F: flat conductor F 2 : locked portion -28-