泰 542 1 5 A7 __ B7 五、發明說明（1 ) 發明所屬技術頜城 (請先閱讀背面之注意事項再填寫本頁) 本發明係有關用來作爲各種電子機器操作用開關之按 鈕開關構造，特別是有關配設於固接在殼體內之固定端子 上之活動接點構造。 習知技術 第11及12圖所示係習知按鈕開關之活動接點之構 造。第1 1圖係活動接點之平面圖，第1 2圖係活動接點 之正視圖。 經濟部智慧財產局員工消費合作社印製 活動接點13由具有彈性之磷青銅或不銹鋼板形成， 外表略成圓形，於外側形成環狀棧接部1 3 a。於此棧接 部1 3 a之中央部設有圓弧狀孔1 3b，於此孔1 3b之 中央部形成接觸片1 3 d，其一端藉連接部1 3 c連接於 前述棧接部1 3 a ，其另一端一體切出，其前端側向上側 傾斜而保持一角度彎曲。如接觸片1 3 d設成可，輝由前述 連接部1 3 c於前述棧接部1 3 a上移動。前述接觸片 1 3 d將其形狀作成圓形平面狀，成順沿此圓形接觸片 1 3 d之形狀設置前述圓弧狀孔1 3 b，進一步於其外側 沿此圓弧狀孔1 3 b設置前述環狀棧接部1 3 a。 在使用前述活動接點1 3於按鈕開關情形下，將前述 活動接點1 3配設於固接在未圖示，業已周知之殻體內之 內底部之固定端子上，進一步安裝未圖示，亦業已周知之 橡皮彈簧及鈕柱，藉此完成既存按鈕開關。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4 - A7 B7 4 542 1 5 五、發明說明（2) 發明所欲解決之問顆 惟，於上述習知按鈕開關之活動接點構造中，由於設 在活動接點1 3之接觸片1 3 d之形狀形成縱橫尺寸相同 之圓形，故須對應於相互保持一定間隙而對向配置之固定 端子之排列方向之一對接點部長度設定圓形尺寸，因此， 接觸片1 3 d的外形變大，有所謂活動接點1 3大型化之 問題。 又’由於設在活動接點1 3之接觸片1 3 d形成平面 狀，故與此活動接點1 3抵接，由於使接觸片1 3 d接觸 脫離固定端子之接點部之橡皮彈簧抵接部亦形成平面狀， 故橡皮彈簧與接觸片相互緊貼，於操作時，會因緊貼、脫 離而發出金屬聲，有操作性不良之問題。 因此，本發明目的在於解決上述問題點，提供一種可 加長形成活動接點之接觸片及連接部之長度，獲得穩定掣 子，能使活.動接點全體小型化，復可防止協同橡皮彈簧操 作時發出金屬聲之活動接點之構造。 用以解決問題之措施 爲解決上述問題，本發明第1措施特徵在於，具備盒 狀殼體，固接於此殼體內之一對固定端子，保持可於前述 殼體內側面滑動之鈕柱，配設於前述固定端子上俾可與此 鈕柱同步動作之活動接點，以及配設在此活動接點與前述 鈕柱之間，與前述鈕柱之移動同步動作，使前述活動接點 接觸脫離前述固定端子，同時使前述鈕柱回復之橡皮彈簧 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) '-^--------訂---------線. 經濟部智慧財產局員工消費合作社印製 45421 5 A7 B7 五、發明說明（3 ) (請先閱讀背面之注意事項再填寫本頁) ，前述活動接點由形成於外側之棧接部，.伸設至此棧接部 之連接部，以及設成可經由此連接部在前述棧接部上搖動 之接觸片構成，設於前述活動接點之前述接觸片配置成， 前述連接部伸設方向之長度較正交前述連接部伸設方向之 方向之長度短。 又，第2措施特徵在於，前述活動接點由具有彈性之 金屬板形成，在前述棧接部之中央部設有圓弧狀孔，於此 孔之中央形成介有前述連接部，在金屬板上一體切出之前 述接觸片。 又，第3特徵特徵在於，前述活動接點之前述接.觸片 形成橢圓形狀。 又，第4措施特徵在於，前述活動接點之前述接觸片 形成與對向前述橡皮彈簧之面抵接用突起部。 發明之實施形態 經濟部智慧財產局員工消費合作社印製 以下於弟.1至1 0圖顯不本發明按紐開關之一•實施例 。第1圖係按鈕開關之平面圖。第2圖係按鈕開關之正視 圖’第3圖係第1圖中3 — 3線之剖視圖，第4圖係第1 圖中4 _ 4線之剖視圖，第5圖係自第4圖之初期狀態移 動鈕柱，橡皮彈簧彎曲之狀態之說明圖，第6圖係殼體之 平面圖’第7圖係活動接點之平面圖，第8圖係活動接點 之正視圖’第9圖係鈕柱之底視圖，第1 〇圖係第9圖之 1 0 — 1 0線之剖視圖。 殼體1以合成樹脂等成形材料形成，形成有底而上面 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ~ 45421 5 A7 B7 五、發明說明（4) (請先閱讀背面之注意事項再填寫本頁) 開口之盒狀。於此殼體1之內底部，以黃銅等導電性金屬 材料形成之固定端子2藉由鑲嵌成形等方法一體成形配設 於前述殼體1。此固定端子2形成埋設在殼體1之內底部 ，於此埋設部份中途形成複數彎曲部2 a之基部2 b ;與 此基部2 b —體，朝前殼體.1外側伸延而設置之端子部 2 c ;以及露出前述殼體1之內底面’保持一定間隙而配 設之一對接點部2 d。前述一對接點部2 d分別彎曲對向 配置在與前述基部2 b之排列方向正交之線上。又’形成 前述接點部2 d，使其與前述基部2 b排列方向正交之方 向之寬度尺寸較前述基部2 b之寬度尺寸小。更且’前述 接點部2 d在與前述基部2 b排列方向之中心線L正交之 線上，夾前述中心線L，分別至朝反對側挪移而對向配置 。藉由如此配置前述接點部2 d，可縮短前述殻體1內固 定端子2之排列方向之長度。 經濟部智慧財產局員工消費合作社印製 又，朝前述殼體1外側伸延設置之端子端2 c藉由於 前基部2 b在前述殼體1之內底部設置複數彎曲部2 a ， 作成與前述殼體之底而成同一面，此端子部2 c之前端形 成沿前述殼體1外側兩豎起之丁形彎曲狀。由於此端子部 2 c之前端形成丁形彎曲狀，故可對使用前述殼體1之按 鈕之電路基板上表面安裝。於此情形下，由於前述一·對接 點部2 d沿前述基部2 b不會因複數彎曲部2 a加工而發 生歪斜之方向，亦即在與前述基部2 b排列方向正交之線 上，對向配置，故即使前述殼體1內設有複數彎曲部2 a ，並不會受到此彎曲部2 a加工誤差的影響，可高精度將 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 454 2 1 5 A7 __ B7 五、發明說明（5) 接點間之間隙設定成最小，更可達到前述殼體1小型化。 (請先閱讀背面之注意事項再填寫本頁) 又，於前述殼體1之一對相對向內側而設有與後述鈕 柱之鈎接部之扣緊突部扣接之扣緊溝部i a。藉由設此扣 緊溝部1 a ’可於後述鈕柱移動時及回復時，導引此鈕柱 於前述殼體1內，並將其限位。又，於前述殼體1之矩形 內側面之四隅部設置平面狀滑動面部1 b，配置成與後述 鈕柱之滑動面部相對滑動’藉由於前述殻體1內側面之四 隅部設置前述滑動面部1 b，即使在斜按鈕柱隅部情形下 ’亦可進行穩定的鈕柱滑動，因此，提高操作時的感覺。 且，設在前述殼體1的滑動面部1 b不限於平面狀亦可爲 圓弧面狀。 經濟部智慧財產局員工消費合作社印製 活動接點3由具有彈性之磷青銅或不銹鋼板形成，外 形略成圓形，於其外側形成環狀棧接部3 〇。於此棧接部 3 a之中央部設有圓弧狀孔3 b ，於此孔3 b之中央部形 成接觸片3 d，其一端藉連接部3 c連接於前述棧孽部 3 a ，另一端一體切出。此接觸片3 d設成可經由前述連 接部3 c於前述棧接部3 a上搖動，其前端側略微向之傾 斜，成一角度彎曲。前述接觸片3 d將其形狀作成橢圓形 ，分別配置成，此橢圓形之縱長之向與前述一對固定端子 2之前述接點部2 d之配置方向在同一線上。由於藉由前 述接觸片3 d形成橢圓形，可加長形成前述連接部3 c之 長度（活動跨距），因此’前述接觸片3 d之接觸彈性負 荷之設計自由度變寬，可獲穩定的掣子。復由於可縮短形 成前述接觸片3 d之長度，故可達到前述活動接點3全體 本紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） _ 8 - 4 542 1 5 at B7 五、發明說明（6 ) 之小型化。 又，於前述接觸孔3 d ’在對向後述橡皮彈簧之向上 (請先閱讀背面之注意事項再填寫本頁) ，亦即切出而傾斜之彎曲上側面上’形成與此橡皮彈簧抵 接之抵接用突起部3 e。此突起部3 e不只一個’可設有 複數個，其形亦不限於一種’可形成例如形成圓弧狀或圓 環狀等種種之形狀之突起。藉由設置此突起部3e ’可防 止後述橡皮彈簧與前述接觸片3 d緊貼’防止操作中相互 脫離時發出金屬聲，提高操作性。又，由於按壓接觸片 3 d之大致中央部，故接觸穩定。 經濟部智慧財產局員工消費合作社印製 橡皮彈簧4由撓性彈性體或矽膠等形成，外形作成不 面開口狀之圚拱形，包含後述鈕柱移動及回復之際彎曲而 賦與彈力之裙部4 a ，以及形成於此裙部4 a ,上側之作動 部4 b。於此作動部4 b之下面側形成作動突部4 c ，此 作動突部4 c之前端與設於前述活動接點之接觸片3 d之 突起部3 e抵接。且，本實施例固然以具有彈性之金屬板 形成，將其配設在前述固定端子2與橡皮彈簧4之間，惟 其業已周知，亦可將碳墨接點等一體形成於前述橡皮彈簧 4之作動突起4 c之下端面。於此情形下，無需前述活動 接點3，可減少部件數。 鈕柱5以合成樹脂等成形材料形成大致矩形，其上面 部設有供人的手指等操作之平面狀按壓部5 a。在對向此 按壓部5 a之下面側形成抵接前述橡皮'彈簧4之作動部4 b上面，朝前述活動接點側彎曲前述橡皮彈簧4，向下面 側突出之按壓突部5 b。又，在對向前述鈕柱5之一對側 紙張尺度適用中賴家標準（CNS)A4規格（210 X 297公楚） -9- _2 15 A7 _ B7 五、發明說明（7 ) (請先閱讀背面之注意事項再填寫本頁) 面部上形成一對扣接部5 d，其具有扣緊突部5 c ,與設 在前述殻體1內側面之扣緊溝部1 a扣接，於前述鈕柱5 移動時及回復時，將前述鈕柱5限位於前述殼體1內。於 此扣接部5 a內側，亦即於對向前述橡皮彈簧4之裙部 4 a之面上’形成接納前述裙部4 a在按壓時彎曲之彎曲 部’沿前述裙部4 a外形成圓弧狀凹入之退避部5 e。藉 由設此退避部5 e，可使前述鈕柱5小型化。 又’固然因設置此退避部5 e ，前述扣接部5 d伸延 方向之中央部之厚度，亦即，前述退避部5 e之厚度變薄 ’以致於前述扣接部5 d之強度減低，惟相對於前述退避 部5 e ，使二側部之厚度形成厚壁。由於此二側部形成厚 壁’故即使前述扣接部5 d之退避部5 e形成薄壁，亦確 保前述扣接部5 d全體之彎曲強度，且由於前述扣接部 5 d全體無需加大（增厚），故可使前述鈕柱5小型化。 且，本實施例固.然沿前述橡皮彈簧4之裙部4 a之外形使 前述退避部成圓弧狀，惟前述退避部5 e不限於此，亦可 作成能接納前述裙部4 a之彎曲部4 d之形狀，例如角狀 凹部。 經濟部智慧財產局員工消費合作社印製 又，於前述鈕柱5之矩形四隅部設有伸延至前述殼體 1之內底面側之腳部5 f 。於此腳部5 f外側之隅部形成 倒角之平面狀滑動面部5 g，形成此腳部5 f之滑動面部 5 g，俾與前述殼體1內側面四隅部所’設滑動面部1 b相 對滑動。藉由在前述鈕柱5之矩形四隅部設有前述腳部 5f ，使其成爲前述殼體1內側面與前述鈕柱5外側面之 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -10- 4542 1 5 A7 ____ B7 五、發明說明（8) 相對滑動穩定’前述鈕柱5於前述殼體1內之滑動確實者 〇 (請先閱讀背面之注意事項再填寫本頁) 又，藉由在前述鈕柱5之腳部5 f外側之隅部設有前 述滑動面部5 g ’即使在歪斜按壓前述鈕柱5之隅部情形 下，亦可藉由與設在前述殼體1內側面之四隅部之滑動面 部1 b相對滑動，使前述鈕柱5更穩定滑動，提高前述鈕 柱5之操作感覺。且，設在前述鈕柱5之滑動面部5 g不 限於平面狀，亦可爲圓弧狀面。 發明效果 如以上說明，由於本發明按鈕開關之活動接點具備形 成於外側之棧接部，以及設成可經由此棧接部搖動之接觸 片，接觸片之連接部伸設方向之長度形成較正交連接部伸 設方向之方向之長度短，故可加長形成連接部之長度（活 動跨距），從而使接觸片之接觸彈性負荷設計之自由度變 寬，獲得穩定接觸之掣子。又，由於可縮短形成接觸片之 長度，故可縮小形成活動接點全體大小。 經濟部智慧財產局員工消費合作社印制衣 又，由於活動接點以具有彈性之金屬板形成，於棧接 部設有圓弧狀孔，於孔之中央部形成介有連接部，在金屬 板上一體切出之接觸片，故，即使活動接點之外形不大， 亦可藉簡單形狀，獲得能穩定接觸之活動接點。 又，由於活動接點之接觸片形成橢圓形狀，故模製容 易，部件加工性亦佳，由於可對應於一對固定端子之接點 部確實接觸，故提高接點部之接觸可靠性。 本紙張尺度適用中國國家標準（CNS〉A4規格（210 x 297公釐） 』 -11 - 4542 1 5 A7 -----；__B7 ______ 五、發明說明（9 ) 又’由於與對向橡皮彈簧之面抵接用突起部形成於活 動接點之接觸片，故可防止橡皮彈簧與接觸片緊貼，防止 因操作時緊貼、脫離而發生金屬聲，提高操作性。又，由 於按壓接觸片之大約中央部，故獲得穩定接觸。 圖式之簡單說明 第1圖係顯示本發明一實施例之按鈕開關之平面圖。 第2圖係顯示本發明一實施例之按鈕開關之正視圖。 桌3僵係本發明沿第];圖之3 — 3線之剖視圖。 .第4圖係本發明沿第1圖之4 一 4線之剖視圖。 第5圖係顯示本發明自第4圖之初期狀態移動鈕柱， 橡皮彈簧彎曲形態之說明圖。 第6圖係顯示本發明一實施例之殼體之平面圖。 第7圖係顯示本發明一實施例之活動接點之平面圖。 第8圖係顯示本發明一實施例之活動接點之正視圖。 第9圖係顯示本發明一實施例之鈕柱之底視圖。 第1 0圖係本發明沿第9圖之1 0 _ 1 0線之剖視圖 0 經濟部智慧財產局員工消費合作社印製 第1 1圖係顯示習知按鈕開關之活動接點之平面圖。 第1 2圖係顯示習知按鈕開關之活動接點之正視圖。 符號說明 1 殻體 la 扣緊溝部 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -12- 4542 1 5 A7 五、發明說明（10) 經濟部智慧財產局員工消費合作社印製 1 b 滑 動 面 部 2 固 定 端 子 2 a 彎 曲 部 2 b 基 部 2 c 端 子 部 2 d 接 點 部 3 活 動 接 點 3 a 棧 接 部 3 b 孔 3 c 連 接 部 3 d 接 觸 片 3 e 突 起 部 4 橡 皮 彈 簧 4 a 裙 部 4 b 作 動 部 4 c 作 動 突 部 4 d 彎 曲 部 5 鈕 柱 5 a 按 壓 部 5 b 按 壓 突 部 5 c 扣 緊 突 部 5 d 扣 接 部 5 e 退 避 部 腳部 --------------------訂--------- (請先閱讀背面之注咅？事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -13- 4 54 2 f 5 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（11)5 g 滑動面部 -111 — —- — — —i I I I I I (請先閱讀背面之注意事項再填寫本頁) -laJI . .線· 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -14-Thai 542 1 5 A7 __ B7 V. Description of the invention (1) Jaw city to which the invention belongs (please read the notes on the back before filling out this page) The present invention relates to the structure of push button switches used as switches for various electronic devices. In particular, it relates to the structure of a movable contact arranged on a fixed terminal fixed in a housing. Conventional technology Figures 11 and 12 show the construction of the active contact of a conventional button switch. Figure 11 is a plan view of the movable contact, and Figure 12 is a front view of the movable contact. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The movable contact 13 is formed of elastic phosphor bronze or stainless steel plate, with a slightly circular appearance and a ring-shaped stacking portion 1 a on the outside. An arc-shaped hole 1 3b is provided in the central portion of the stacking portion 1 3 a. A contact piece 1 3 d is formed in the central portion of the hole 13 b. One end is connected to the stacking portion 1 by a connecting portion 1 3 c. 3 a, the other end is cut out integrally, and the front end side thereof is inclined upward to maintain an angle of bending. If the contact piece 1 3 d is set to be possible, Hui is moved by the aforementioned connecting portion 1 3 c on the aforementioned stacked portion 1 3 a. The aforementioned contact piece 1 3 d is formed into a circular flat shape, and the arc-shaped hole 1 3 b is provided along the shape of the circular contact piece 1 3 d, and further along the arc-shaped hole 1 3 on the outer side thereof. b is provided with the aforementioned ring stacking portion 1 3 a. In the case of using the aforementioned movable contact 13 as a push button switch, the aforementioned movable contact 13 is arranged on a fixed terminal fixedly connected to an inner bottom of an unillustrated and well-known housing, and further installed not illustrated, Also known are rubber springs and button posts to complete existing button switches. This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -4-A7 B7 4 542 1 5 V. Description of the invention (2) The problem to be solved by the invention is the above-mentioned conventional button switch In the movable contact structure, since the shape of the contact piece 1 3 d provided at the movable contact 13 forms a circle having the same vertical and horizontal dimensions, it is necessary to correspond to the arrangement direction of the fixed terminals arranged opposite to each other while maintaining a certain gap. The length of the pair of contact portions is set to a circular size. Therefore, the outer shape of the contact piece 1 3 d becomes large, and there is a problem that the movable contact portion 13 is enlarged. Also, since the contact piece 1 3 d provided at the movable contact 13 is formed in a flat shape, it is in contact with the movable contact 13. Since the contact piece 1 3 d is brought out of contact with the contact portion of the fixed terminal, The contact portion is also formed in a flat shape, so the rubber spring and the contact piece are in close contact with each other. During the operation, a metal sound is generated due to the close contact and separation, and there is a problem of poor operability. Therefore, the object of the present invention is to solve the above-mentioned problems, and provide a contact piece and a connecting portion that can be extended to form a movable contact to obtain a stable detent, which can reduce the size of the movable contact as a whole, and prevent cooperative rubber springs. The structure of a movable contact that emits a metal sound during operation. Measures to Solve the Problems To solve the above problems, the first measure of the present invention is characterized by a box-shaped housing, which is fixed to a pair of fixed terminals in the housing, and maintains a button column that can slide on the inner side of the housing. The movable contact provided on the fixed terminal can be synchronized with this button post, and the movable contact provided between the movable contact and the button post is synchronized with the movement of the button post, so that the movable contact comes into contact and disengages. The above-mentioned fixed terminal, and the rubber spring that restores the aforementioned button posts, the paper size is applicable to Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling this page) '-^- ------ Order --------- line. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 45421 5 A7 B7 V. Invention Description (3) (Please read the notes on the back before filling in this Page), the movable contact is formed by a stacking portion formed on the outside, a connecting portion extending to the stacking portion, and a contact piece provided through the connecting portion to be able to swing on the stacking portion. The aforementioned contact piece of the movable contact is configured to Than perpendicular to the longitudinal direction of the connecting portion is provided extending direction of the extending direction of the length of the provided short connecting portion. The second measure is characterized in that the movable contact is formed of a metal plate having elasticity, a circular arc-shaped hole is provided in a central portion of the stacking portion, and the connection portion is formed in the center of the hole, and the metal plate is formed. The aforementioned contact piece is cut out integrally. A third characteristic feature is that the contact piece of the movable contact has an elliptical shape. A fourth measure is characterized in that the contact piece of the movable contact is formed with a protrusion for abutting against a surface facing the rubber spring. The implementation form of the invention Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The following Yudi. 1 to 10 shows one of the button switches of the present invention, an embodiment. Figure 1 is a plan view of a push button switch. Fig. 2 is a front view of a push button switch. Fig. 3 is a cross-sectional view taken along line 3-3 in Fig. 1; Fig. 4 is a cross-sectional view taken along line 4-4 in Fig. 1; Description of the state when the button is moved and the rubber spring is bent. Figure 6 is a plan view of the casing. Figure 7 is a plan view of the movable contact. Figure 8 is a front view of the movable contact. Figure 9 is a button. Bottom view, Fig. 10 is a cross-sectional view taken along line 10-10 of Fig. 9. The case 1 is formed of a molding material such as synthetic resin, and is formed with a bottom. The size of the paper above is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) ~ 45421 5 A7 B7 5. Description of the invention (4) (please first Read the notes on the back and fill in this page) Open box. A fixed terminal 2 made of a conductive metal material such as brass is integrally formed on the bottom portion of the casing 1 and is provided in the casing 1. The fixed terminal 2 is formed to be embedded in the bottom portion of the housing 1, and a base portion 2 b of a plurality of curved portions 2 a is formed halfway in the embedded portion; and this base portion 2 b is a body extending toward the outer side of the front housing. 1 The terminal portion 2 c is exposed, and the inner bottom surface of the case 1 is exposed, and a butt contact portion 2 d is provided while maintaining a certain gap. The pair of contact portions 2 d are respectively bent and arranged on a line orthogonal to the arrangement direction of the base portions 2 b. The contact portion 2d is formed so that the width dimension in a direction orthogonal to the arrangement direction of the base portion 2b is smaller than the width dimension of the base portion 2b. Furthermore, the aforesaid contact portion 2 d is disposed on a line orthogonal to the center line L of the direction in which the base portion 2 b is arranged, and the center line L is sandwiched therebetween and moved to the opposite side and arranged oppositely. By arranging the contact portions 2d in this way, the length of the arrangement direction of the fixed terminals 2 in the housing 1 can be shortened. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the terminal end 2 c extended to the outside of the housing 1 is provided with a plurality of curved portions 2 a at the bottom of the housing 1 due to the front base 2 b. The bottom of the body is formed on the same surface, and the front end of the terminal portion 2 c is formed into two cuboid-shaped curved shapes rising along the outer side of the casing 1. Since the front end of the terminal portion 2 c is formed into a d-shaped curved shape, it can be mounted on the upper surface of a circuit board using the buttons of the case 1 described above. In this case, since the first butt joint portion 2 d is along the direction in which the base portion 2 b is not distorted due to the processing of the plurality of curved portions 2 a, that is, on a line orthogonal to the arrangement direction of the base portion 2 b, Orientation, so even if there is a plurality of curved portions 2 a in the aforementioned casing 1, it will not be affected by the processing error of this curved portion 2a, and this paper size can be applied to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 454 2 1 5 A7 __ B7 V. Description of the invention (5) The gap between the contacts is set to a minimum, and the aforementioned case 1 can be miniaturized. (Please read the precautions on the back before filling in this page.) In addition, one of the aforementioned housings 1 is provided with a fastening groove portion i a which is fastened inwardly with a fastening projection of a hooking portion of a button post described below. By setting the fastening groove portion 1 a ′, the button post can be guided in the aforementioned housing 1 when the button post moves and returns as described later, and the position can be limited. In addition, a planar sliding surface portion 1b is provided on the four inner portions of the rectangular inner side surface of the casing 1, and is configured to slide relatively to the sliding surface portion of the button post described below. b. Even in the case of the slanted button post's' stable sliding of the button post, the feeling during operation is improved. In addition, the sliding surface portion 1b provided in the case 1 is not limited to a planar shape and may be an arcuate surface shape. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The active contact 3 is formed of flexible phosphor bronze or stainless steel plate, with a slightly circular shape, and a ring-shaped stacking portion 30 is formed on the outside. An arc-shaped hole 3 b is provided in the central portion of the stacking portion 3 a. A contact piece 3 d is formed in the central portion of the hole 3 b. One end is connected to the stacking portion 3 a by a connecting portion 3 c. Cut out at one end. This contact piece 3 d is set to be able to be shaken on the stacking portion 3 a through the connection portion 3 c, and the front end side thereof is slightly inclined toward the angle and bent at an angle. The contact piece 3 d is formed into an ellipse shape and is arranged so that the longitudinal direction of the ellipse is on the same line as the arrangement direction of the contact portions 2 d of the pair of fixed terminals 2. Since the contact piece 3 d is formed into an oval shape, the length (moving span) of the connection portion 3 c can be lengthened. Therefore, the design freedom of the contact elastic load of the foregoing contact piece 3 d is widened, and a stable Catch. Since the length of the contact piece 3 d can be shortened, the movable contact 3 can be reached. The paper size applies the Chinese National Standard (CNS) A4 (210 x 297 mm) _ 8-4 542 1 5 at B7 5. Miniaturization of invention description (6). In addition, in the aforementioned contact hole 3 d 'upward from the rubber spring to be described later (please read the precautions on the back before filling in this page), that is, cut out and inclined on the upper side to form the abutment with this rubber spring Of abutment protrusions 3e. Not only one of the protrusions 3e may be provided with a plurality of shapes, but the shape is not limited to one type. The protrusions 3e may be formed into various shapes such as an arc shape or a ring shape. By providing the protruding portion 3e ', it is possible to prevent the rubber spring, which will be described later, from coming into close contact with the contact piece 3d, to prevent metallic sounds from being generated when they are separated from each other during operation, thereby improving operability. In addition, since the substantially central portion of the contact piece 3 d is pressed, the contact is stable. The rubber spring 4 printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is formed of flexible elastomers or silicone, and the shape is made of a non-face-shaped opening arch, which includes a skirt that is bent to give elasticity when the button moves and returns as described later. Part 4a, and an action part 4b formed on the skirt part 4a and the upper side. An actuating protrusion 4 c is formed on the lower side of the actuating portion 4 b. The front end of the actuating protrusion 4 c is in contact with the protrusion 3 e of the contact piece 3 d provided at the movable contact. Moreover, although this embodiment is formed of a metal plate having elasticity, it is arranged between the fixed terminal 2 and the rubber spring 4, but it is well known that carbon ink contacts and the like can be integrally formed in the rubber spring 4. The lower end face of the actuating protrusion 4c. In this case, the aforementioned movable contact 3 is not required, and the number of parts can be reduced. The button column 5 is formed into a substantially rectangular shape by using a molding material such as synthetic resin, and a flat pressing portion 5a is provided on the upper portion for manipulation by a finger or the like. A pressing protrusion 5b is formed on the lower surface of the pressing portion 5a facing the operating portion 4b of the rubber spring 4 to bend the rubber spring 4 toward the movable contact side and protrude to the lower side. In addition, the Lai Jia Standard (CNS) A4 specification (210 X 297) is applied to the paper size of the opposite side of one of the aforementioned button columns 5. -9- _2 15 A7 _ B7 V. Description of the invention (7) (please first Read the notes on the back and fill in this page again.) A pair of fastening parts 5 d are formed on the face, which have fastening protrusions 5 c, which are fastened to the fastening grooves 1 a provided on the inner side of the casing 1. When the button post 5 moves and returns, the button post 5 is limited to be located in the housing 1. On the inside of the buckling portion 5a, that is, on the side opposite to the skirt portion 4a of the rubber spring 4, a curved portion that receives the skirt portion 4a that is bent when pressed is formed along the skirt portion 4a. Arc-shaped recessed retreat 5e. By providing this retreat portion 5e, the aforementioned button post 5 can be miniaturized. "Although the thickness of the central portion in the extending direction of the aforementioned fastening portion 5 d, that is, the thickness of the aforementioned withdrawal portion 5 e becomes thinner because of the provision of this retracting portion 5 e, so that the strength of the aforementioned fastening portion 5 d decreases, However, compared with the aforementioned retreat portion 5 e, the thickness of the two side portions is formed to be thick. Since the two side portions form a thick wall, even if the retreat portion 5 e of the aforementioned fastening portion 5 d is formed into a thin wall, the bending strength of the entire fastening portion 5 d is ensured, and since the entire fastening portion 5 d does not need to be added, Large (thickened), so that the aforementioned button column 5 can be miniaturized. Moreover, this embodiment certainly makes the aforementioned retraction portion arc-shaped along the outer shape of the skirt portion 4 a of the rubber spring 4, but the aforementioned retraction portion 5 e is not limited to this, and can also be made to receive the skirt 4 a The shape of the curved portion 4 d is, for example, an angular recess. Printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Further, a leg portion 5 f extending to the inner bottom surface side of the aforementioned housing 1 is provided on the rectangular four-segment portion of the button column 5. A chamfered flat sliding surface 5 g is formed on the crotch portion outside the leg portion 5 f, and a sliding surface 5 g is formed on the leg portion 5 f. The sliding surface portion 1 b is provided with the four crotch portions of the inner surface of the casing 1 Relative sliding. By setting the aforementioned leg portion 5f on the rectangular quadrangular portion of the aforementioned button post 5, it becomes the paper size of the inner side surface of the aforementioned housing 1 and the outer side surface of the aforementioned button post 5 which is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -10- 4542 1 5 A7 ____ B7 V. Description of the invention (8) Relative sliding stability 'The sliding of the aforementioned button post 5 in the aforementioned housing 1 is true. (Please read the precautions on the back before filling in this (Page) Furthermore, by providing the sliding surface 5 g on the crotch portion outside the leg portion 5 f of the button column 5, even in a case where the crotch portion of the button column 5 is pressed at an angle, The sliding surfaces 1 b of the four protuberances on the inner side of the casing 1 relatively slide, so that the aforementioned button post 5 slides more stably, and the operation feeling of the aforementioned button post 5 is improved. In addition, the sliding surface 5g provided on the button post 5 is not limited to a planar shape, and may be an arc-shaped surface. Effects of the Invention As described above, since the movable contact of the push button switch of the present invention includes a stacking portion formed on the outside, and a contact piece provided to be able to swing through the stacking portion, the length of the connection portion of the contact piece in the extending direction is relatively small. The length of the orthogonal connecting portion in the direction of extension is short, so the length of the connecting portion (moving span) can be lengthened, so that the degree of freedom in designing the contact elastic load of the contact piece is widened, and a latch for stable contact is obtained. In addition, since the length of the contact piece can be shortened, the size of the entire movable contact can be reduced. The consumer property cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has printed clothes. Because the movable contacts are formed of flexible metal plates, arc-shaped holes are provided in the stacking portion, and a connection portion is formed in the central portion of the hole. The contact piece cut out on the upper body, so even if the shape of the movable contact is not large, a simple shape can be used to obtain a movable contact that can be stably contacted. In addition, since the contact piece of the movable contact is formed in an elliptical shape, it is easy to mold, and the part has good workability. Since the contact portion of a pair of fixed terminals can be reliably contacted, the contact reliability of the contact portion is improved. This paper size applies to Chinese national standards (CNS> A4 size (210 x 297 mm) "-11-4542 1 5 A7 -----; __B7 ______ 5. Description of the invention (9) and 'Because of the opposite rubber spring The surface-contacting protrusion is formed on the contact piece of the movable contact, so that the rubber spring and the contact piece can be prevented from closely contacting, metal sound can be prevented from being caused due to the close contact and disengagement during operation, and the operability is improved. The contact piece is pressed by It is about the middle part, so stable contact is obtained. Brief description of the drawing The first diagram is a plan view showing a push button switch according to an embodiment of the present invention. The second diagram is a front view showing a push button switch according to an embodiment of the present invention. Table 3 Fig. 3 is a cross-sectional view of the present invention taken along line 3-3. Fig. 4 is a cross-sectional view of the present invention taken along line 4-4 of Fig. 1. Fig. 5 shows the initial state of the present invention from Fig. 4 An illustration of the bent shape of the rubber spring when the button is moved. Figure 6 is a plan view showing the housing of an embodiment of the present invention. Figure 7 is a plan view showing the movable contact of an embodiment of the present invention. Figure 8 is a view showing One of the active contacts of an embodiment of the present invention Figure 9 is a bottom view of a button post according to an embodiment of the present invention. Figure 10 is a cross-sectional view of the present invention taken along line 1 0 _ 10 of Figure 9. 0 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 11 is a plan view showing the active contact of a conventional push button switch. Figure 12 is a front view showing the active contact of a conventional push button switch. Symbol Description 1 Housing la Fastening groove The paper size is applicable to China Standard (CNS) A4 specification (210 X 297 mm) -12- 4542 1 5 A7 V. Description of invention (10) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1 b Sliding face 2 Fixed terminal 2 a Bent portion 2 b Base 2 c terminal 2 d contact 3 movable contact 3 a stack 3 b hole 3 c connection 3 d contact piece 3 e protrusion 4 rubber spring 4 a skirt 4 b actuating part 4 c actuating protrusion 4 d Bend 5 Button post 5 a Pressing part 5 b Pressing part 5 c Fastening part 5 d Fastening part 5 e Retreating part foot --- --- Order --- ------ (Please read the note on the back? Matters before filling out this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -13- 4 54 2 f 5 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (11) 5 g sliding face -111 — —- — — — i IIIII (Please read the precautions on the back before filling this page) -laJI... This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -14-