201203760 六、發明說明： 【發明所屬的技術領域】 本發明是關於電路基板用電連接器° 【先前技術】 在這種連接器，因爲排列的端子數量 以極小間距排列，因此，端子是維持金屬 所作成，藉由排列在與該板面成直角的方 述極小間距的排列。 作爲這種連接器，已知在專利文獻1 該專利文獻1的連接器，維持如上述平坦 端子，使用第一端子與第二端子兩種，互 互地配置。用來將第一端子與第二端子予 第一端子保持凹部與第二端子保持凹部， 壁而與第一端子及第二端子的板面面接觸 文獻1，在上述端子保持壁，形成有：局 面之間形成有間隙的寬幅部或缺口部。該 ，其在端子排列方向觀察時的對於第一端 位置關係是如何並沒有記載，而從圖面來 子的位置與對於第二端子的位置是相同的 藉由以這樣的寬幅部或缺口部，在上 端子的板面之間設置有用來形成間隙的部 時助焊劑沿著端子的板面上升，利用在上 部的間隙，阻止助焊劑進一步上升，防止 很多，所以需要 板的平坦的板面 向，而可進行上 揭示的連接器。 的板面所作成的 相板面平行，交 以保持的殼體的 分別以端子保持 。並且，在專利 部在與端子的板 寬幅部或缺口部 子及第二端子的 看，對於第一端 0 述端子保持壁與 分，則即使焊接 述寬幅部或缺口 上述助焊劑到達 -5- 201203760 :在端子的上部形成的接觸部（接點）。 [先前技術文獻] [專利文獻] [專利文獻1 ] 日本特開2007-287398 【發明內容】 [發明欲解決的課題] 專利文獻1的連接器’雖然將第一端子與第二端子配 置成位置交互，而用來防止助焊劑上升而形成間隙的寬幅 部或缺口部，當在端子排列方向觀察時，是形成在相同位 置。於是，如果以極小間距排列端子的話，則鄰接的端子 間的端子保持壁的厚度，在上述間隙的部分會變薄，而保 持強度降低。儘管如此，爲了確保保持強度，必須將上述 間隙部分的壁厚度增大，這樣就無法達成極小間距排列。 本發明鑑於這種情形，其課題是要提供一種電路基板 用電連接器，讓殼體的端子保持強度不會降低，即使形成 有用來防止助焊劑上升用的間隙，也能將端子以極小間距 排列。 [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 ，將所插入的扁平型導體與電路基板電連接的電連接器’ 是具有： -6- 201203760 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； 形成有用來將插入的扁平型導體的連接部分予以收容 的收容空間，在上述接觸部與扁平型導體接觸的位置，形 成有以該端子的板面保持上述端子的保持溝的殻體； 以及設置有用來將力量施加到上述端子的被壓部的加 壓部，能夠於：可插入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的關閉位置之間移動的可動構 件； 上述端子，是將以扁平型導體的插入方向作爲長軸方 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，上腕部在較連結部更靠近扁平型導體的 插入方向前側的前部，具有被壓部，在後側具有按壓部。 在該電路基板用電連接器，在本發明，保持溝’其至 少包含端子的連結部的一部分的範圍的部分’形成有溝寬 度較其他部分更寬的寬幅部，當從端子排列方向觀察該寬 幅部時，至少其中一部分位置不同。 在這種構造的本發明，在用來保持端子的保持溝’對 於各端子形成有寬幅部，藉由該寬幅部的間隙’則當防止 助焊劑上升時，寬幅部形成在連結部的位置’成爲從具有 實施焊接的連接部的下腕部，朝具有接觸部的上腕部的助 201203760 焊劑上升的唯一上升路線，以連結部可有效地防止助焊劑 上升。並且在鄰接端子彼此，當從端子排列方向觀察時， 寬幅部彼此錯開，所以即使在該寬幅部形成間隙，藉由上 述錯開方式，在沒有形成寬幅部的部分，也能確保用來保 持端子的壁面，能確保保持強度，所以能將保持溝彼此間 的壁厚作薄，而能以極小間距排列端子。 在本發明，相對於鄰接的端子，寬幅部彼此，其至少 其中一部分在前後方向位於不同位置，或者至少其中一部 分在上下方向位於不同位置。 [發明效果] 本發明，如上述，至少在包含端子的連結部的第一部 的範圍設置寬幅部，形成間隙，相對於鄰接的端子，寬幅 部彼此，當從端子排列方向觀察時，至少其中一部分位於 不同位置，所以在端子的兩面側形成有間隙，且在上述端 子排列方向，會有與端子的兩面面接觸加以保持的部分， 以連結部能有效地阻止助焊劑上升的情形，並且端子保持 強度不會降低，能以極小間距排列端子。 【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。 -8- 201203760 扁平型導體F，在其前端部下面，將覆蓋部去除 體部（沒有圖示）露出，在上面將薄片狀的補強材F1安 成：較該導體部朝更前方朝向連接器1突出。該補強 F1，在較導體部更前方的左右的側緣形成有缺口狀的被 止部F2。 連接器1，是具有：由金屬板作成的端子10、20、 定配件30、將上述構件予以保持的殻體40、以及可自 轉動地支承於殼體40的可動構件60。 端子1〇、20、與鎖定配件30，都是維持金屬板的 坦面所作成。端子由兩種端子10、20所構成，將其在 端子1 〇、20的板面成直角的方向排列成交互位置，與 同方向位於兩端的端子10、20鄰接而設置鎖定配件30 兩種端子10、20，如在該端子10、20的剖面圖也 是第2圖（A)、（B)所示，都作成橫Η型，具有：分別朝 方向延伸的上腕部11、21、下腕部12、22、以及將兩 部在其長軸方向中間部連結的連結部1 3、23。上腕部 、21，在作爲扁平型導體F的插入方向的前方的前部， 成有以後述的可動構件的凸輪部按壓的被壓部14、24, 後部形成有從上方按壓扁平型導體的按壓部15、25。在 腕部1 2、22的前部，形成有上述凸輪用的支承部1 6、 ，而在後部形成有用來與扁平型導體的導體部接觸用的 觸部17、27。且在下腕部12、22，設置有：與電路基 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 導 裝 材 卡 鎖 由 平 與 在 就 橫 腕 11 形 在 下 26 接 板 -9- 201203760 接著針對差異點來說明。 端子10的上腕部11，如第2圖（A)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（B)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10的情況更短，在其後端設置 有突狀的按壓部25。 端子10的下腕部12，如第2圖（A)所示’從連結部 13朝前方延伸而在延伸到殼體40外的部分形成有連接部 18。連接部18，具有朝下方凹入彎曲的溝狀的固定部18A 。在連結部1 3與連接部1 8之間的部分，形成有：上緣作 成凹狀用來收容凸輪部的支承部16。相對的，端子20的 下腕部22，如第2圖（B)所示，在從連結部23朝前方延伸 的部分的上緣，作成大致直狀緣部形成了支承部26，朝後 方延伸的部分延伸到殼體40外，具有：與上述端子1〇的 連接部18大致前後對稱的形態的連接部28及固定部28 A 。該端子20的下腕部22’在前後方向’在連結部23與連 接部2 8的中間部，在與上腕部21的按壓部2 5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’將端子 10從前方且將端子2〇從後方朝殻體40安裝’將其交互排 列。 鎖定配件30，如第2圖（C)及第3圖所示’作成與端 -10- 201203760 子20類似的橫Η字型，與端子20同樣地，具有上腕 3 1與下腕部3 2，兩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3 1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 更長，在與端子10大致相同位置，形成有朝後方延 的鎖定腕31Α。在其後端設置有：朝向下方的較大的突 狀的鎖定部3 5。上述鎖定腕3 1 A，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 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3 3爲支點朝下方移位，結果，變成來到大致 平位置。在該情況，鎖定腕3 1 A即使不在完全水平的位 ’或有些許的傾斜，只要是實質上可稱爲水平狀態的姿 即可。例如，當可動構件在開啓位置時具有傾斜的鎖定 ’當可動構件來到關閉位置時，雖然其傾斜角度變小而 得接近水平位置，而仍然有些許的傾斜，或是即使超過 平位置而在相反側產生些許的傾斜，在其傾斜度很小的 況’都可說是實質上在水平位置。在上述鎖定腕31A的 端處設置的突出狀的鎖定部3 5，前緣3 5 A作成大致垂 緣’後緣3 5 B朝前下方傾斜。該鎖定部3 5，在上腕部 在被壓部3 4沒有受到來自凸輪部的力的狀態，當插入 平型導體F時，是成爲與該扁平型導體F的前端緣干涉 部 3 3 有 與 子 伸 出 〇 動 ， 水 置 勢 腕 變 水 情 後 直 3 1 扁 的 -11 - 201203760 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。201203760 VI. TECHNOLOGICAL FIELD OF THE INVENTION [Technical Field] The present invention relates to an electrical connector for a circuit board. [Prior Art] In this connector, since the number of terminals arranged is arranged at a very small pitch, the terminal is a sustaining metal. The arrangement is made by arranging an arrangement of extremely small pitches at right angles to the plane of the board. As a connector of the above-mentioned patent document 1, the connector of the patent document 1 is maintained as the flat terminal described above, and the first terminal and the second terminal are used, and are arranged mutually. The first terminal and the second terminal are held in the first terminal holding recess and the second terminal holding recess, and the wall is in contact with the document surface of the first terminal and the second terminal, and the terminal holding wall is formed with: A wide or notched portion having a gap is formed between the situations. Therefore, the positional relationship with respect to the first end when viewed in the terminal arrangement direction is not described, and the position from the drawing surface is the same as the position for the second terminal by such a wide width or notch. In the portion where the gap is formed between the plate faces of the upper terminal, the flux rises along the plate surface of the terminal, and the gap in the upper portion prevents the flux from rising further and prevents a lot. Therefore, a flat plate of the plate is required. Facing, the connector disclosed above can be performed. The surface of the plate is parallel to the surface of the plate, and the housings that are held together are held by the terminals. Further, when the patent portion is in contact with the wide portion of the terminal or the notched portion and the second terminal of the terminal, the terminal retaining wall and the minute for the first end 0, even if the soldering of the wide portion or the notched flux reaches - 5- 201203760 : Contact (contact) formed on the upper part of the terminal. [Prior Art Document] [Patent Document 1] [Patent Document 1] Japanese Patent Laid-Open Publication No. 2007-287398 [Problem to be Solved by the Invention] The connector of Patent Document 1 has the first terminal and the second terminal arranged in position. Interacting, and the wide portion or the notched portion for preventing the flux from rising to form a gap is formed at the same position when viewed in the terminal arrangement direction. Therefore, if the terminals are arranged at a very small pitch, the thickness of the terminal holding wall between the adjacent terminals becomes thinner at the portion of the gap, and the holding strength is lowered. Nevertheless, in order to ensure the holding strength, it is necessary to increase the wall thickness of the above-mentioned gap portion, so that an extremely small pitch arrangement cannot be achieved. The present invention has been made in view of such circumstances, and an object thereof is to provide an electrical connector for a circuit board, which does not reduce the strength of the terminal of the casing, and can form the terminal with a minimum pitch even if a gap for preventing the flux from rising is formed. arrangement. [Means for Solving the Problem] The electrical connector for a circuit board of the present invention is an electrical connector that is disposed on a circuit board and electrically connects the inserted flat conductor and the circuit board. -6-201203760 There is a contact portion that maintains a flat plate surface of the metal plate and 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 bearing portion that is pressed to move the pressing portion toward the pressing direction. a plurality of terminals arranged in a direction perpendicular to the plate surface; a receiving space for accommodating a connecting portion of the inserted flat conductor, and the contact portion is in contact with the flat conductor a casing having a holding groove for holding the terminal at a plate surface of the terminal; and a pressurizing portion provided with a pressed portion for applying a force to the terminal, which can be inserted into a flat conductor a movable member that moves between a position and a closed position that presses the flat conductor toward the contact portion of the terminal; the terminal is a flat conductor The upper arm portion and the lower arm portion extending in the longitudinal direction are formed by connecting the connecting portions at the intermediate position in the longitudinal direction thereof, and the upper arm portion is closer to the front portion of the front side in the insertion direction of the flat conductor than the connecting portion. The pressed portion has a pressing portion on the rear side. In the electrical connector for a circuit board, in the present invention, the portion of the groove "having at least a portion of the connecting portion of the terminal" is formed with a wide portion having a wider groove width than the other portions, as viewed from the terminal arrangement direction. At least a part of the position is different when the wide portion is used. In the present invention of such a configuration, the holding groove for holding the terminal is formed with a wide portion for each terminal, and the gap portion of the wide portion is formed when the flux is prevented from rising, and the wide portion is formed at the joint portion. The position 'is the only rising path from the lower arm portion having the joint portion for welding to the help of the 201203760 flux having the upper arm portion of the contact portion, and the joint portion can effectively prevent the flux from rising. Further, when the adjacent terminals are viewed from the terminal arrangement direction, the wide portions are shifted from each other. Therefore, even if a gap is formed in the wide portion, the portion in which the wide portion is not formed can be secured by the above-described staggered manner. Since the wall surface of the terminal is held, the strength can be maintained, so that the thickness of the holding grooves can be made thin, and the terminals can be arranged at a very small pitch. In the present invention, at least a part of the wide portions are located at different positions in the front-rear direction with respect to the adjacent terminals, or at least a part thereof is located at different positions in the up-and-down direction. According to the present invention, as described above, at least a wide portion is provided in a range of the first portion including the connection portion of the terminal, and a gap is formed, and the wide portions are adjacent to each other with respect to the adjacent terminals, when viewed from the terminal arrangement direction. Since at least some of them are located at different positions, a gap is formed on both sides of the terminal, and a portion that is in contact with and held on both sides of the terminal in the terminal arrangement direction is provided, and the connection portion can effectively prevent the flux from rising. Moreover, the terminal holding strength is not lowered, and the terminals can be arranged at a very small pitch. [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. -8- 201203760 The flat conductor F is exposed on the lower surface of the front end portion, and the cover-removing body (not shown) is exposed, and the sheet-shaped reinforcing material F1 is placed on the upper side toward the connector. 1 outstanding. In the reinforcing F1, a notched portion F2 is formed on the left and right side edges of the front side of the conductor portion. The connector 1 has terminals 10 and 20 made of a metal plate, a fitting 30, a case 40 for holding the above member, and a movable member 60 rotatably supported by the case 40. The terminals 1A, 20, and the locking fitting 30 are all made by maintaining the flat surface of the metal plate. The terminal is composed of two kinds of terminals 10 and 20, and is arranged at an orthogonal position in the direction of the plate faces of the terminals 1 〇 and 20, and is adjacent to the terminals 10 and 20 at the opposite ends to provide the locking fitting 30. 10 and 20, as shown in Fig. 2 (A) and (B), the cross-sectional views of the terminals 10 and 20 are all formed into a horizontal shape, and have upper wrist portions 11, 21 and lower wrist portions extending in the respective directions. 12, 22, and connecting portions 13 and 23 that connect the two portions in the middle portion of the long axis direction. In the front portion of the upper arm portion 21, which is the front side in the insertion direction of the flat conductor F, the pressed portions 14 and 24 which are pressed by the cam portion of the movable member to be described later are formed, and the rear portion is pressed to press the flat type conductor from above. Department 15, 25 The support portion 16 for the cam is formed in the front portion of the wrist portions 1, 2, and 22, and the contact portions 17 and 27 for contacting the conductor portion 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. In the above, although the common point of the two types of terminals 10, 20 is described, the guide material lock is described as being flat and the transverse wrist 11 is formed on the lower plate -9-201203760, and then the difference is explained. As shown in FIG. 2(A), the upper arm portion 11 of the terminal 10 has a pressed portion 14 provided at the lower edge of the front portion as a concave 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. As shown in FIG. 2(B), the upper arm portion 21 of the opposite terminal 20 is formed by a straight portion at the lower edge of the front portion and extends rearward from the connecting portion 23. The portion is shorter than the case of the terminal 10 described above, and a projecting pressing portion 25 is provided at the rear end thereof. The lower arm portion 12 of the terminal 10 is formed to extend forward from the connecting portion 13 as shown in Fig. 2(A), and a connecting portion 18 is formed at a portion extending outside the casing 40. The connecting portion 18 has a groove-shaped fixing portion 18A that is recessed downward. A portion between the connecting portion 13 and the connecting portion 18 is formed with a support portion 16 whose upper edge is formed in a concave shape for accommodating the cam portion. In contrast, as shown in FIG. 2(B), the lower arm portion 22 of the terminal 20 has a support portion 26 formed in a substantially straight edge portion at the upper edge of a portion extending forward from the coupling portion 23, and extends rearward. The portion extending beyond the casing 40 has a connecting portion 28 and a fixing portion 28A which are substantially symmetrical with respect to the connecting portion 18 of the terminal 1A. The lower arm portion 22' of the terminal 20 is provided with a projecting contact portion 27 at a position corresponding to the pressing portion 25 of the upper arm portion 21 in the intermediate portion of the connecting portion 23 and the connecting portion 28 in the front-rear direction. The two terminals 1 〇, 20 thus formed are arranged alternately as shown in Fig. 1 'mounting the terminal 10 from the front and mounting the terminal 2 后方 from the rear toward the casing 40'. The lock fitting 30 has a cross-shaped shape similar to that of the end-10-201203760 sub 20 as shown in Figs. 2(C) and 3, and has an upper wrist 3 1 and a lower wrist 3 2 similarly to the terminal 20. Both of them are connected by a connecting portion at the intermediate portion in the longitudinal direction. The lock fitting 30 has the same shape as the terminal 20 in the front portion 'the upper arm portion 31 and the lower arm portion 32, and the pressed portion 34 is formed at the front portion of the upper arm portion 31 with a straight edge portion at the lower wrist. The front portion of the portion 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, and a locking wrist 31Α extending rearward is formed at substantially the same position as the terminal 10. At its rear end, there is provided a large projecting locking portion 35 which faces downward. The lock arm 31 1 A extends obliquely toward the rear upper side to extend the lock arm 31A, and when the pressed portion 34 is pressed by the cam portion of the member which is a closed position described later and is lifted upward, the joint portion 3 is used because of the lever principle. 3 is the fulcrum shifting downward, and as a result, it becomes a substantially flat position. In this case, the locking wrist 3 1 A may be a position which can be called a horizontal state as long as it is not in a full horizontal position or a slight inclination. For example, when the movable member has an inclined lock when in the open position, when the movable member comes to the closed position, although the inclination angle becomes smaller, it is close to the horizontal position, and there is still a slight inclination, or even if it exceeds the flat position The opposite side produces a slight tilt, which can be said to be substantially horizontal in the case where the inclination is small. At the end of the lock arm 31A, a projecting locking portion 35 is provided, and the leading edge 35 A is formed as a substantially vertical edge. The trailing edge 35 5 is inclined downward toward the front. In the state in which the upper arm portion is not subjected to the force from the cam portion in the pressed portion 34, the locking portion 35 is inserted into the flat conductor F, and the interference portion 3 3 of the flat conductor F is provided. The child stretched out and moved, and the water set the wrist to change the water condition after the straight 3 1 flat -11 - 201203760 positional relationship in the height direction. A fixing leg 38 of the same type as the connecting portion 28 of the terminal 20 is provided at the rear end of the lower arm portion 32, and a groove-shaped fixing portion 38A is formed therein.
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1 〇、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。該端子保持 溝41、42及鎖定配件保持溝43，以將板狀的端子10、20 及鎖定配件3 0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插入溝45所連通。藉由該插 入溝45的形成，殻體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1 0的溝狀的固定部1 8 A -12- 201203760 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1〇用的端子保持溝41，以允許端子1〇的下腕部 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。 殼體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 4 9 ’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，形成有插入溝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49A、49B。上述延伸部49的其插入溝45 的內側面及上下內面’形成有：用來將所插入的扁平型導 體F限制其寬度方向及上下方向的位置的限制部5〇。在 該限制部50之中的與扁平型導體插入時的載置面相同高 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3 0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 -13- 201203760 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35朝下方移位時’位於較該鎖定部35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1〇、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 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，也可在藉由殻體所保持 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1 3、2 3及3 3所位置的高度的橫剖面 的第4圖所示，在包含上述連結部〗3、2 3、3 3的各區域 的端子保持溝4 1、42及鎖定配件保持溝43的溝寬度，較 -14- 201203760 在其他區域的溝寬度更大，形成了寬幅部41A、42A、43A 。在該寬蝎部41A、42A、43A的區域，與端子10、20及 鎖定配件3 0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字10、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1 0、20的連結部1 3、23設置在前後 方向不同的位置，在前後方向在與該連結部1 3、2 3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10、 2 〇的連結部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、42A。並且，連結部1 3、23 ，作爲將上腕部1 1、2 1與下腕部1 2、22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、23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h 1、h 2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 -15- 201203760 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 〇、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4〇的插入 溝45插入的該可動構件60的位置，另一方面，所謂的關 閉位置，是產生移位而將插入後的扁平型導體F朝下方壓 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6 1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 0、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1〇、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10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1 6內，對於上腕部1 1的被壓部1 4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 -16- 201203760 定爲較同圖的上述支承部16與被壓部14的 是，當可動構件60來到關閉位置時，如後 部63爲縱長姿勢，將上述被壓部1 4朝上方 移位。 與端子20對應設置的凸輪部64，如第 當可動構件60在開啓位置時，具有將上述端 長的長圓形的凸輪63的右上角部變形成角 ，而與上述支承部26相接。在該圖的高度 上述凸輪部63。於是，凸輪部64在左部爲 部具有平坦面且其下部作成類似圓形的形狀 ，當可動構件60在開啓位置時，相對於在端 部2 1處形成的被壓部24，爲具有間隔的非 當可動構件60來到關閉位置時，成爲縱長 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 狀類似上述凸輪部64，而即使可動構件60 也相接於：在鎖定配件30的上腕部31處形) 。當可動構件60來到關閉位置時，該凸輪窗 被壓部34使其彈性移位。 分別對應於兩種端子1 〇、20的凸輪部 動構件60來到關閉位置時，從其旋轉軸線 是在第2圖與紙面成直角的方向觀察，是如 位置關係。在第7圖（A)，當可動構件60在 成爲縱長姿勢的凸輪部63與凸輪部64，從薄 間隔更大。於 述，上述凸輪 按壓使其彈性 2圖（B)所示， $子1 〇用的橫 狀的剖面形狀 尺寸也是大於 半圓形，在右 。該凸輪部64 ί子20的上腕 接觸的狀態， 姿勢，將該被 ，雖然剖面形 在開啓位置， 友的被壓部34 丨65按壓上述 63 、 64 ，當可 的方向，也就 第7圖（Α)的 關閉位置時， §子10的被壓 -17- 201203760 部14與支承部〗6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—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，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Y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，能穩定保持 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 -18- 201203760 部63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 器，說明其使用方法。 (1) 首先’將如第1圖所示的連接器丨配置在電路基板 (沒有圖不）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。靜錫可能會從在下腕部12、22、32處形成的 上述連接部18、28及固定腳38，沿著端子1〇、20及鎖定 配件30的各個板面而上升。可是，端子1〇、2〇及鎖定配 件3 0的下腕部1 2、2 2 ' 3 2，僅以連結部1 3、2 3、3 3連結 於上腕部11' 21、31’所以即使假設銲錫上升，銲錫爲了 達到上腕部1 1、2 1、3 1 ’銲錫必須通過該連結部1 3、2 3 、3 3。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41A、42A、43A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1 1、2 1 、3 1。該阻止銲錫上升的效果，針對助焊劑（fl u X)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的插入。在該可動 -19- 201203760 構件60處於開啓位置的狀態，端子10、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10、20，在容易接收扁平型導 體F的狀態。鎖定配件3 0，如上述，其按壓部3 5在與扁 平型導體F的插入路線干涉的位置。 (3)然後，如第8圖（A)〜（C)所示，將扁平型導體F朝 殼體40的插入溝45插入。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4 9的限制部5 0，限制在上下及側方的位置，在 預定位置插入。於是，當插入時，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插入時，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10、20，扁平型導體F 容易地進入到上腕部1 1、2 1與下腕部1 2、22之間。當扁 平型導體F插入時，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插入前，朝向後上方傾斜，所以當以鎖定部3 5 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3 5A可相對於該被卡止部 -20- 201203760 F2的前緣卡止的狀態。在該狀態，上述鎖定腕3 1 A，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。 (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60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 、2 0及鎖定配件3 0的上腕部1 1、2 1、3 1，分別將連結部 1 3、2 3、3 3作爲支點，利用槓桿原理，較該連結部13、 2 3、3 3更後方的部分朝下方傾斜，讓後端的按壓部1 5、 25朝下方移位。端子1〇、20，藉由其按壓部1 5、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 1〇、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30，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3 5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1〇、20的 -21 - 201203760 按壓部15' 25朝下方按壓而下降，所以成讓上述殻體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60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3 5 A朝後方按壓。該前緣3 5 A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 ，只要實質上爲垂直即可》 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插入時的載置面52，形成有 -22- 201203760 在鎖定配件3 0的周邊變高的突部5〗’。該突部5 1 ’，從第 1 1圖（A)、（Β)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31Α，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31的被壓部34被 可動構件60的凸輪部65按壓，藉由讓鎖定腕31Α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 1 Α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3 1的前部的上緣處形成的被壓部3 4，將該被壓部3 4朝 下方按壓。於是，作爲上腕部3 1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 -23- 201203760 位置時，上述凸輪部6 5從被壓部3 4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 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 、與插入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 且扁平型導體插入前的剖面圖，（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)在另一種端子的 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 -24- 201203760 (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，扁平型導體插入後。 第9圖是與第2圖對應的圖，顯示扁平型導體插入後 ，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 一部分的局部剖面圖。 第1 1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。 【主要元件符號說明】 10、20 :端子 1 1、21 :上腕部 1 2、2 2 :下腕部 1 3、2 3 :連結部 1 4、2 4 :被壓部 1 5、2 5 :按壓部 1 7、2 7 :接觸部 1 8、2 8 :連接部 •25- 201203760 40 :殼體 41、42 :(端子）保持溝 4 1 A、4 2 A :寬幅部 45 :收容空間（插入溝） 60 :可動構件 63、64 :加壓部（凸輪部） -26-The case 40 for holding the above-mentioned terminals 10, 20 and the lock fitting 30 is made of an electrically insulating material, and as shown in Fig. 1, is formed into a relatively flat substantially rectangular outer shape, as shown in Fig. 2, front and rear (in the figure) 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 1 and 20 and the lock fitting 30, respectively. The terminal holding grooves 41 and 42 and the lock fitting holding groove 43 are configured to hold the plate-like terminals 10 and 20 and the lock fitting 30 facing each other so as to maintain a slight gap with the plate surface, and the second figure is formed on the paper surface. The direction of the right angle is formed as a slit having a groove width equivalent 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 toward the upper portion 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 by penetrating the groove portion 48 into which the lock arm 31A of the lock fitting 30 enters at a 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 1 8 A -12 to 201203760 of the terminal 10 is fitted, with respect to the terminal 20 and the lock fitting 30. A terminal portion 20 formed at the rear end and a holding portion 47A for each of the fixing portions 28A and 38A of the lock fitting 30 are formed. The terminal holding groove 41 for the terminal 1 opened upward by the lower wall 47 is configured such that the rear portion of the lower arm portion 1 2 of the terminal 1〇 is deflected downward, and the groove bottom 4 1 A is formed toward the rear as a cone. In the shape, 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 array direction with an extending portion 49 extending rearward from the rear end edge of the range including the locking fittings 30 at both ends of the terminal array range. As shown in FIG. 2, the extending portion 4' is formed in a horizontally u-shaped shape 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 insertion groove 45, both end portions in the width direction are formed. The extending portion 49 has tapered inlet surfaces 49A and 49B at the lower inlet portion. The inner side surface and the upper and lower inner surface ' of the insertion groove 45 of the extending portion 49 are formed with restriction portions 5 for restricting the position of the inserted flat type 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 viewed from the first drawing as "a position deviated from the lock fitting 30 in the terminal arrangement direction, and in the front-rear direction" as viewed from the second diagram (C), and is locked to the lock fitting 30. The portions 35 are substantially the same position. The locking projection 51 has a longitudinal section such that the trapezoidal front 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 position of opening -13 - 201203760. The height is set to be lower than the lower end of the locking portion 35. On the other hand, when the locking member 35 is displaced downward by the movable member coming to the closed position, it is located above the lower end of the locking 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 positioned at a position lower than the lower arms 12 and 22 of the terminals 1A and 20; The upper ends of the contact portions 17, 27 are further below. In the present invention, when the movable member comes to the closed position, the locking portion 35 and the locking projection 51 are complementarily locked from above and below the locked 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 at the position of the connecting portions 1 3, 2 3, and 3 3, the terminal holding groove 4 1 is provided in each of the regions including the connecting portions 3, 2 3, and 3 3 . 42 and the locking fitting retaining groove 43 have a groove width which is wider than the width of the groove of the other region from -14 to 201203760, and the wide portions 41A, 42A, 43A are formed. In the region of the wide-twist portions 41A, 42A, and 43A, gaps hi, h2, and h3 wider than the other regions are formed between the terminals 10 and 20 and the plate surface of the lock fitting 30. In the present embodiment, hi = h2. The positions of the wide portions 41 A, 42A' are shifted in the front-rear direction (the up-and-down direction in Fig. 4) with respect to the end words 10, 20 which are alternately arranged in the terminal arrangement direction. In the fourth drawing, it is clear that the above-described locking projection 51 is displaced from the lock fitting 30 in the terminal arrangement direction, and is close to the lock fitting 30. In the example of the fourth embodiment, the connecting portions 1 3 and 23 of the terminals 10 and 20 are provided at positions different in the front-rear direction, and the wide portion is provided in the region corresponding to the connecting portions 13 and 23 in the front-rear direction. 41A, 42A, the wide portions 41A, 42A are also shifted in the front-rear direction. On the other hand, as the different types, the connecting portions 13 and 2 of the terminals 10 and 2 are as shown in Fig. 5. When the front and rear directions are at the same position, the wide portion 41A'42A may be formed as After passing through the tapered portion, it is shifted back and forth to the wide portions 4 1 A, 42A. Further, the connecting portions 1 3 and 23 have a length in the vertical direction corresponding to the interval between the two arms as the type in which the upper arm portions 1 1 and 2 1 and the lower arm portions 12 and 22 are connected. Therefore, even the connecting portion 1 is provided. 3 and 23 are at the same position in the front-rear direction. 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 may be shifted to form large intervals h1 and h2. As shown in Fig. 1, 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 in an open position from the vertical posture shown in Figs. 2-15 to 201203760 (A) to (C). The closing position of the ninth (A) to (C) which are horizontally inclined in the lateral direction is freely rotatable. The movable member 60 is for applying a downward displacement to the rear portions of the upper end portions 1 1 , 2 1 , 3 1 of the terminals 1 〇 20 and the locking fitting 30, and the so-called open position 'is generating the shift Previously, the flat conductor F can be inserted into the movable member 60 of the insertion groove 45 of the casing 4, and the so-called closed position is displaced so that the inserted flat conductor F faces downward. Press in position. 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 a front-rear portion is formed at a position lower than the operation portion 61. The slit-shaped groove portion 62. The groove portion 62 is formed at a position corresponding to each of the terminals 10 and 20 and the lock fitting 30 in the terminal arrangement direction, and the groove width of the groove portion 62 (the second drawing (A) to (C) is 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 1A, 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. The cam portion 63 provided corresponding to the terminal 10 has a long circular cross-sectional shape 'in front of the lower arm portion 12 of the terminal 10' when the movable member 60 is in the open position as shown in Fig. 2(A). In the concave support portion 16 formed at the upper edge portion, the pressed portion 14 of the upper arm portion 11 has a gap and is in a non-contact state. The lateral length of the cam portion 63 in Fig. 2(A) is set to be the same as the support portion 16 and the pressed portion 14 of the same figure, when the movable member 60 comes to the closed position, such as the rear portion. 63 is a vertically long posture, and the above-mentioned pressed portion 14 is displaced upward. The cam portion 64 provided corresponding to the terminal 20 has a right upper corner portion of the oblong cam 63 having the end length formed at an angle when the first movable member 60 is in the open position, and is in contact with the support portion 26. The height of the figure is the cam portion 63 described above. Then, the cam portion 64 has a flat surface at the left portion and a circular shape at the lower portion thereof, and has a space with respect to the pressed portion 24 formed at the end portion 21 when the movable member 60 is in the open position. When the non-tradable movable member 60 comes to the closed position, the vertically long pressing portion 24 is pressed upward to be elastically displaced. The cam portion 65 provided corresponding to the lock fitting 30 is similar to the above-described cam portion 64, and even if the movable member 60 is in contact with: at the upper arm portion 31 of the lock fitting 30). When the movable member 60 comes to the closed position, the cam window is elastically displaced by the pressing portion 34. When the cam member member 60 corresponding to each of the two types of terminals 1 〇, 20 comes to the closed position, it is viewed from the direction in which the rotation axis is at right angles to the plane of the drawing in Fig. 2, as in the positional relationship. In Fig. 7(A), when the movable member 60 is in the longitudinal direction of the cam portion 63 and the cam portion 64, the interval from the thin portion is larger. As described above, the cam is pressed to make it elastic. As shown in Fig. (B), the cross-sectional shape of the $1 is also larger than the semicircular shape on the right. In the state in which the upper wrist of the cam portion 64 is in contact with the posture, the posture is such that the cross-sectional shape is in the open position, and the pressed portion 34 丨 65 of the friend presses the above 63 and 64, and in the visible direction, the seventh figure is also shown. When the (Α) is closed, the pressed portion -17-201203760 portion 14 and the support portion 6 receive the reaction forces A and B of the same force, respectively, and are received from the pressed portion 24 and the support portion 26 of the terminal 20, respectively. The reaction forces C, D of the same force. The reaction forces A and B of the cam portion 63 toward one of them are aligned on the line X passing through the center of rotation P of the cam. The opposite 'the cam portion 64 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, the reaction force from the support portion 26 acts on the flat bottom surface of the cam portion 64, so that the center of the reaction force D becomes the center position, and as a result, it has the line of action on the same line Y 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 one line X' and the reaction forces C and D are balanced on the other line 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 also 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, and the torque caused by the reaction forces A, B, and C, D on the two lines X, Y will return to the original In the neutral state, the neutral state can be stably maintained. 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 cam portions are formed such that the long axes of the two cam portions 63, 64 intersect, and the reaction force of one of the cams 18 - 201203760 portion 63 The lines of action of a and b are shifted from each other, and the lines of action of the reaction forces C and D of the other cam portion 64 are also shifted from each other. However, when the two types of cam portions 63 and 64 are observed at the same time, the four reaction forces a, B, C, and D' are reversed 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 electrical connector for a circuit board of the present embodiment having such a configuration will be described. (1) First, the connector 丨 shown in Fig. 1 is placed at a predetermined position on the 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 respectively Soldering with each corresponding portion of the circuit board. The static tin may rise from the respective plate faces of the terminals 1A, 20 and the lock fitting 30 from the above-described connecting portions 18, 28 and the fixing legs 38 formed at the lower arms 12, 22, 32. However, the terminals 1〇, 2〇 and the lower arm portions 1 2, 2 2 ' 3 2 of the lock fitting 30 are connected to the upper wrist portions 11' 21, 31' only by the connecting portions 1 3, 2 3, 3 3, so even Assuming that the solder rises, the solder must pass through the joints 1 3, 2 3 , 3 3 in order to reach the upper wrist 1 1 , 2 1 , 3 1 '. However, as seen from Fig. 4 to Fig. 6, the casing 40 is formed with a large gap in the wide portions 41A, 42A, 43A with respect to the joint portions 13, 23, 33', so that the rise of the solder stops there. Will not reach the upper wrist 1 1 , 2 1 , 3 1 . This effect of preventing solder from rising can also be obtained for the flux (fl u X). (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 the state in which the movable member -19-201203760 is in the open position, the terminals 10, 20 and the pressed portions 14, 24, 34 of the lock fitting 30 are not subjected to any force from the corresponding cam portions 63, 64, 65 of the movable member 60. Then, the pressing portions 15, 25, 35 are not displaced at the initial position, and the terminals 10, 20 are in a state in which the flat conductor F is easily received. The lock fitting 30 is, as described above, the pressing portion 35 at a position interfering with the insertion route of the flat conductor F. (3) Then, as shown in Fig. 8 (A) to (C), the flat conductor F is inserted into the insertion groove 45 of the casing 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. Insert at the predetermined location. 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 conductor F is easily entered for the terminals 10, 20. The upper wrist 1 1 , 2 1 and the lower wrist 1 2, 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 its front end. 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 upward force is directed toward The deflection is increased in the direction in which the inclination is increased, 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 state in which the leading edge of the locked portion -20-201203760 F2 is locked. In this state, the above-described locking wrist 3 1 A is returned 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. (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 a vertically long posture, and the cam portion 63 pushes up the pressed portion 14 of the terminal 10 upward, and the cam portion 64 faces the pressed portion 24 of the terminal 20. The upper portion is pressed up, and 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 wrists 1 1 , 2 1 , 3 1 of the locking fitting 30 have the connecting portions 1 3, 2 3, 3 3 as fulcrums, respectively. By the principle of the lever, the portion rearward of the connecting portions 13, 23, 3 3 is inclined downward, and the pressing portions 15 5, 25 at the rear end are displaced downward. The terminals 1A 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 17'27 of the terminals 1 and 20, and electrically connecting them. , get the official connection status. On the other hand, the lock fitting 30 allows the lock wrist 3 1 A which is inclined toward the rear upper side to be deflected downward by the manner of reducing the inclination thereof to become 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 engaged portion F2 of the flat conductor F is further enhanced. Further, since the flat conductor F is pressed downward by the -21,037,370 pressing portion 15' 25 of the terminals 1 and 20, the locking projection 51 of the casing 40 is inserted into the locked portion F2. status. The flat conductor F' faces the locked portion F2, and the locking 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 acts strongly. In this state, that is, in the state where the movable member 60 is in the closed position, the cam portion 63' 64 is maintained in the neutral state in the state of Fig. 7(A), and even if the movable member 60 is slightly rotated in any direction, it can be restored. 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 leading edge 35 A. Since the leading edge 35 A is vertical, it is firmly 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 may be substantially vertical as long as it is inclined up and down. The present invention is not limited to the ones shown in Figs. 1 to 9 and can be variously modified. 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 has a projection 5' that is raised around the lock fitting 30 from -22 to 201203760 for the mounting surface 52 when the flat conductor F is inserted. The projection 5 1 ' is formed to extend forward from the front periphery of the lock portion 35 of the lock fitting 30 as seen from the first (A) and (A). 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 to say, the card portion F2 is lifted up and the lock portion 35 is surely locked. Next, in the above-described embodiment, the locking arm 31 of the upper arm portion 31 of the lock fitting 30, the movable member 60 is in the open position, and the pressed portion 34 does not receive any force from the movable member 60, and is inclined toward the rear upper side, when the movable member 60 is moved. When the vehicle is brought 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 31 is displaced downward by the posture of the locking arm 31's in the horizontal direction. In the embodiment shown in the figure, in the open position, the upper arm portion 31 receives a force from the cam portion 63, and the locking arm 3 1 Α is inclined toward the rear upper side. In the closed position, the force is released and the horizontal direction is adopted. posture. 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 a pressed portion formed at the upper edge of the front portion of the upper arm portion 31 of the locking fitting 30. 3 4, 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 rearward and upward with the connecting portion 3 3 as a fulcrum. When the movable member 60 is rotated about the shaft portion 66 to the position of the closing -23-201203760 shown in Fig. 12(B), the cam portion 65 is disengaged from the pressed portion 34, and the locking of the wrist 3 1 A is released. Shifting, the locking wrist 3 1 A is in a horizontal state. 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: a terminal having a contact portion at the lower wrist portion and a terminal portion serving as a contact portion at the pressing portion of the upper wrist portion are formed in a so-called staggered arrangement. 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 of Fig. 1 with the movable member in the open position and before the flat type conductor is inserted, and (A) is the position of one of the two types of terminals in the terminal arrangement direction, (B) At the location 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. 2-24-201203760 (A) and (B), and (B) is a view of the cam portion of the modified example. surface. 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 comes to the closed position after the insertion of the flat conductor. Fig. 10 is a partial cross-sectional view showing a part of the connector as seen from the rear, showing another embodiment. Fig. 1 is a longitudinal sectional view of the connector of Fig. 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). Profile. Fig. 12 is a cross-sectional view showing the position of the lock fitting of another embodiment, (A) showing the movable member in the open position and (B) showing the closed position. [Description of main component symbols] 10, 20: Terminal 1 1 and 21: Upper wrist 1 2, 2 2 : Lower wrist 1 3, 2 3 : Connecting portion 1 4, 2 4 : Pressed portion 1 5, 2 5 : Pressing portions 1 7 and 2 7 : Contact portions 1 8 and 2 8 : Connecting portions • 25 - 201203760 40 : Housings 41 and 42 : (terminal) holding grooves 4 1 A, 4 2 A : Wide portion 45 : accommodating space (Insert groove) 60: Movable member 63, 64: Pressurizing portion (Cam portion) -26-