A7 五、發明說明（1 ) 發明所屬技術領域 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，特別是有關保持可在殻體內滑動之鈕柱之構 造。 習知技術 第1 1及1 2圖所示者係習知按鈕開關之鈕柱構造。 第1 1圖係鈕柱之平面圖，第1 2圖係沿第1 1圖之1 2 —1 2線之剖視圖。 經濟部智慧財產局員工消費合作社印製 鈕柱1 5以合成樹脂等成形材料形成大致矩形，其上 面部設有供人類牛指等操作之平面狀按壓部1 5 a »於對 向此按壓部1 5 a之下面側形成抵接未圖示橡皮彈簧上面 之按壓突部1 5 b。又，於對向前述鈕柱1 5之一對側面 部上形成與未圖示，設在殻體內側面之扣緊溝部扣接，於 前述鈕柱1 5移動時及回復時，將前述鈕柱1 5限位於殼 體內，具有扣緊突部1 5 c之一對扣接部1 5 d。於此扣 接部1 5 d之中央空間部配設使前述鈕柱1 5回復初期位 置之未圖示橡皮彈簧。於此情形下，在橡皮彈簧彎折撓曲 蒔不會碰撞此橡皮彈簧外側之位置，前述扣接部1 5 d自 前述鈕柱15突出形成。 前述扣接部爲了確保與未圖示殼體扣接之強度，亙前 述扣接部1 5 d全體形成均等壁厚，前述鈕柱1 5爲了確 保此壁厚，按前述扣接部1 5 d決定前述鈕柱1 5之外形 -4 - 本纸張尺度適用中國國家標準（CNS)A4規格（210 X 297公坌） A7 43683 1 _B7__ 五、發明說明（2 ) {請先閱讀背面之注意事項再填寫本頁) 又，於前述鈕柱1 5之四隅部設有與未圖示之殼體內 側面相對滑動之腳部1 5 f ，配置成藉此腳部1 5 f及前 述扣接部1 5 d可滑動收容於未圖示殼體內。 在使用前述鈕柱1 5於按鈕開關情形下，將未圖示， 業已周知之活動接點及橡皮彈簧收納於未圖示殼體之開口 內部，進一步自其上方安裝前述鈕柱，.藉此完成既存按鈕 開關。 惟|於上述習知按鈕開關之鈕柱構造中，扣接部1 5 d爲了確保與殼體扣接之強度，亙扣接部1 5 d全體形成 均等壁厚，由於鈕柱1 5按扣接部1 5 d之厚度決定外形 ，故鈕柱1 5之外形會隨著扣接部1 5 d之厚度增厚而變 大，有鈕柱1 5會大型化之問題。 線· 因此，本發明目的在於解決上述問題點，提供一種即. 使鈕柱之扣接部壁厚不均等，亦可確保扣接部之扣接強度 ，同時鈕柱全體可小型化之鈕柱構造。' ~~ ^ ' 用以解決問題之措施 經濟部智慧財彦局員工消費合作社印製 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 殼體之內側面滑動之鈕柱，配設於前述固定端子上俾可與 此鈕柱之移動同步動作之活動接點|以及使此活動接點接_ 觸脫離前述固定端子，同時使前述鈕柱回復之橡皮彈簧， 於前述鈕柱形成扣接部，其具有扣緊於前述殼體內側面之 扣緊溝部之扣緊突部，於此扣接部對向前述橡皮彈簧之面 本纸張尺度適用中囤國家標準（CNS)A4規格（210x 297公II ) -5- 4 3 β 8 3 1 α7 Β7 五、發明說明（3.) 上形成接納前述橡皮彈簧之彎曲部之退避部。 又，第2措施特徵在於，形成於前述扣接部之退避部 形成順著前述橡皮彈簧外形之圓弧狀。 又，第3措施特徵在於，前述扣接部形成二側面部之 厚度較前述扣接部伸設方向之中央部更厚之壁厚。 又，第4措施特徵在於，配設於前述固定端子之前述 -活動接點以具有彈性之金屬板形成，配設在前述橡皮彈簧 與前述固定端子之間。 發明之實施形態 以下於第1至1 0圖顯示本發明按鈕開關之一實施例 。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，形成有底面上面 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藉由讓嵌成形等方法一體成形配設1 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 本紙張尺度適用中國S家標準（CNS)A4規格（210*297公g ) (請先閱讀背面之注意事項再填寫本頁) 衣--------訂 -----I--. 經濟部智慧財產局員工消費合作社印製 五、發明說明（4 ) 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 置在前述 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 ，分別互朝反對側挪移而對向配置。藉 由如此配置前述接點部2d ，可縮短前述殼體1內固定端 子2之排列方向之長度。 . 又，朝前述殼體1外側伸延設置之端子部2 c藉由於 前述基部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面成同一面，此端子部2 c之前端 形成沿前述殼體1外側面豎起之丁形彎曲狀。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，@於前述一對 接點部2 d沿前述基部2 b不會回復數彎曲部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 f a，亦不會受到此彎曲部2 a加工誤差的影響，可高精度 將接點間之間隙設定成最小，更可達到前述殼體1小型化 又’於前述殼體1之一對相對向內側面設有與後鈕柱 之鈎接部之扣緊突部扣接之扣緊溝部1 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 本紙張尺度適用中囷國家標準（CNS)A4規格（210 X 297公笼） (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 Α7 Β7 ^3 άβ3 ί 五、發明說明（5 ) (請先閱讀背面之注意事項再/填'k本1) 前述殼體1內，並將其限位。又，於前述殻體1之矩形內 fj面之四隅部設置平角狀滑動面部1 b，配置成與後述鈕 柱之滑動面部相對滑動，藉由於前述殼體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J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 a。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連接於前述棧接部 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，其前端側略微向上傾 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，此橢圓形之縱長方向與前述一對固定端子 2之前述接點部2 cl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3d之接觸彈性負 荷之設計自由度變寬，可獲穩定的掣子。復可達到前述活 動接點3全體之小型化》 又，於前述接觸片3 d，在對向後述橡皮彈簧之面上— ，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 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） -8 - 43683I " 五、發明說明（6 ) (請先閱讀背面之注意事項再填寫本黃) 環狀等種之形狀之突起。藉由設置此突起部3 e ，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。又，由於按壓接觸片3 d之大致中央部 *故接觸穩定。 橡皮彈簧4由撓性彈性體或矽膠等形成，外形作成下 面開口狀之圓拱形，包含後述鈕柱移動及回復之際彎曲而 賦與彈力之裙部4 d，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己之 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，亦可將碳黑接點等一體形成於前述橡皮彈簧 4之作動突部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·。_ 經濟部智慧时彦局員工消費合作社印製 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 面部上形成一對扣接部5 d，其具有扣緊突部5 c，與設 在前述殼體1內側面之扣緊溝部1 a扣接，於前述鈕柱5 移動時又回復時，將前述鈕莖1. 5限位於前述殼體1內。 於此扣接部5 d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 本紙張尺度通用中囵國家標準（CNSM4規格（210 X 297公笔） 4 3 683 ] A7 _：___B7 五、發明說明（ 部，沿前述裙部4 由設此退避部5 e 又，固然因設 方向之中央部之厚 ，以致於前述扣接 5 e ，使二側部之 ，故即使前述扣接 前述扣接部5 d全 全體無需加大（增 本實施例固然沿前 退避部成圓弧狀， 能接納前述裙部4 a外形成圓弧狀凹入之退避部5 e。藉 ’可使前述鈕柱5小型化^ 請 先 閱 t* 背 面 之 注 意 事 項 再 填( 寫 本 頁 置此退避部5 e ，前述扣接部5 d伸延 度’亦即，前述退避部5 e之厚度變薄 部5 d之強度減低，惟相對於述退避部 厚度形成厚壁。由於此二側部形成厚壁 部5 d之退避部5 e形成薄壁，亦確保 體之彎曲強度，且由於前述扣接部5 d 厚），故可使前述鈕柱5小型化。且， 述橡皮彈簧4之裙部4 a之外形使前述 惟前述退避部5 e不限於此，亦可作成 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殻體 1之内底面側之腳部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 相對滑動穩定，前述鈕柱5於前述殼體1內之滑動確實者 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 F，亦可藉由與設在前述殼體1內側面之四隅部之滑動面 本紙張又度適用中國國家標準（CNS)A4規格（210 X 297公堃） -10· 4 3 683 1 A7 B7 五、發明說明（8 ) 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，亦可爲圓弧面狀。 發明效果 如以上說明，由於本發明按鈕開關之形成於鈕柱，具 有扣緊突部之扣接部，在對向橡皮彈簧之面上，形成接納 橡皮彈簧之彎曲部之退避部，故可僅就此退避部之厚度， 減小扣接部全體厚度，從而可達到鈕柱之小型化，可達到 殼體之小型化以及按鈕開關全體之小型化。 又，由於形成於扣接部之退避部形成順著橡皮彈簧外 形之圓弧狀，故即使在橡皮彈簧藉由鈕柱之按壓而彎曲情 形下，橡皮彈簧亦不會碰撞扣接部•鈕柱可穩定滑動。 又1由於扣接部形成二側面厚度較扣接部伸設方向之 中央部之厚度更厚之厚壁，故即使扣接部之中央部形成薄 壁，亦因強度爲二側部所涵蓋，是以，可藉簡單形狀確保 扣接部全體之彎曲強度（扣接強度）。 又，由於配設於固定端子上之活動接點以具有彈性之 金屬板形成，配設在橡皮彈簧與固定端子之間，故可對應 於一對固定端子之接點部確實接觸，從而提高接點部之接 觸可靠性。 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。 本紙張尺度適用中0國家標準（CNS>A4規格（210 * 297公堃） (請先閱讀背面之注意事項再壤k本頁) 訂. --線· 經濟部智慧財彦局員工消費合作杜印製 ^3683 t A7 ______B7___ 五、發明說明（9.) 第2圖係顯示本發明一實施例之按鈕開關之正視圖。 第3圖係本發明沿第1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， 橡皮彈簧彎曲之狀態之說明圖。 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剖視圖。 第1 0圖係本發明沿第9圖之1 0 — 1 0線之剖視圖 第11圖係顯示習知按鈕開關之鈕柱之平面圖。 第1 2圖係習知者沿第1 1圖之1 2 _ 1 2線之剖視 圖 請 先 閱 讀 背 £ι 之 注 意 事 項 再' 填ί' 寫 本 頁 訂. 線 經濟部智慧財產局員工消費合作社印製 符號說明 1 殼體 la 扣緊溝部 lb 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 本紙張尺度適用中國國家標準.(CNS)A4規格（210 * 297公釐） -12- ^3633 f 五、發明說明（10) A7 B7 經濟部智慧財產局員工消費合作社印5λ 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 5 f 腳 部 5 g 滑 動 面 部 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210x297公釐） -13-A7 V. Description of the invention (1) Technical field of the invention The present invention relates to the structure of a push button switch used as a switch for operating various electronic devices, and in particular to the structure of a button post that can be slid in a housing. Conventional technology The ones shown in Figs. 11 and 12 are the structure of a conventional push button switch. Fig. 11 is a plan view of the button post, and Fig. 12 is a sectional view taken along line 1 2-12 of Fig. 11. The employee column of the Intellectual Property Bureau of the Ministry of Economic Affairs printed a button column 15 formed into a substantially rectangular shape using a molding material such as synthetic resin, and a flat pressing portion 1 5 a is provided on the upper surface for the operation of human bull fingers. A pressing protrusion 1 5 b is formed on the lower side of 1 a to abut the upper surface of a rubber spring (not shown). In addition, a fastening groove portion (not shown) formed on the side surface of one of the button columns 15 opposite to the button column 15 is provided on the inner side of the housing, and the button column is moved when the button column 15 is moved and restored. 15 is located in the housing, and has one pair of fastening parts 15 d of one fastening protrusion 15 c. A rubber spring (not shown) is provided in the central space portion of the fastening portion 15 d to return the button post 15 to the initial position. In this case, at a position where the bending and bending of the rubber spring does not collide with the outside of the rubber spring, the aforementioned buckling portion 15 d protrudes from the aforementioned button post 15. In order to ensure the strength of the fastening part with the housing (not shown), the fastening part 1 5 d has an equal wall thickness as a whole. The button post 15 ensures the wall thickness according to the fastening part 1 5 d. Decide on the shape of the aforementioned button column 1 5 -4-This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 cm) A7 43683 1 _B7__ V. Description of the invention (2) {Please read the notes on the back first (Fill in this page again) In addition, a foot portion 1 5 f sliding relative to the inner side of the casing (not shown) is provided at the four cymbals of the button column 15, and the foot portion 1 5 f and the aforementioned fastening portion 1 are arranged. 5 d can be slidably housed in a casing (not shown). In the case of using the aforementioned button post 15 as a button switch, the not-shown, well-known movable contacts and rubber springs are housed inside the opening of the unillustrated housing, and the aforementioned button post is further installed from above. Complete the existing button switch. However, in the button column structure of the conventional button switch described above, in order to ensure the strength of the button connection with the housing, the button connection portion 15 d has an equal wall thickness as a whole. The thickness of the joint portion 15 d determines the outer shape, so the outer shape of the button post 15 will become larger as the thickness of the buckle portion 15 d becomes thicker. There is a problem that the button post 15 will become large. Therefore, the object of the present invention is to solve the above-mentioned problems, and to provide a button post that can ensure the fastening strength of the button part even if the wall thickness of the button part is uneven, and the entire button post can be miniaturized. structure. '~~ ^' Measures to solve the problem Printed by the Consumer Cooperatives of the Ministry of Economic Affairs, Smart Finance and Economics Bureau To solve the above-mentioned problems, the first measure of the present invention is characterized by a box-shaped case, which is fixed to a pair of the case. The fixed terminal holds a button post that can slide on the inner side of the aforementioned case, and is arranged on the fixed terminal. There is a movable contact that can move in synchronization with the movement of the button post | and make this movable contact contact _ touch off the aforementioned The rubber spring that fixes the terminal and restores the button post at the same time forms a fastening part on the button post, which has a fastening protrusion fastened to a fastening groove part on the inner side of the housing, and the fastening part faces the rubber The surface of the spring The paper size is applicable to the national standard (CNS) A4 specification (210x 297 male II) -5- 4 3 β 8 3 1 α7 Β7 5. The description of the invention (3.) is formed to accommodate the aforementioned rubber spring bending Ministry of Retreat. A second measure is characterized in that the retreat portion formed in the engaging portion is formed in an arc shape following the outer shape of the rubber spring. A third measure is characterized in that the thickness of the two side portions of the fastening portion is thicker than the thickness of the central portion in the extending direction of the fastening portion. A fourth measure is characterized in that the movable contact disposed on the fixed terminal is formed by a metal plate having elasticity, and is disposed between the rubber spring and the fixed terminal. Embodiment of the Invention An embodiment of the push button switch of the present invention is shown in FIGS. 1 to 10 below. Figure 1 is a plan view of a push button switch, Figure 2 is a front view of a push button switch, Figure 3 is a cross-sectional view taken along line 3-3 in Figure 1, and Figure 4 is a cross-sectional view taken along line 4_4 in Figure 1. Fig. 5 is an explanatory diagram of the state where the button post is moved from the initial state of Fig. 4 and the rubber spring is bent. Fig. 6 is a plan view of the casing. Fig. 7 is a plan view of the movable contact. Front view, Fig. 9 is a bottom view of the button post, and 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 in a box shape with an opening on the bottom surface. A fixed terminal 2 formed of a conductive metal material such as brass is formed on the bottom of the case 1 by integral molding and the like, and is provided in the case 1. The fixed terminal 2 forms a base 2 b embedded in the bottom of the housing 1, and a plurality of curved portions 2 a are formed in the middle of the embedded portion; and the base 2 b is a body that extends toward the outside of the front housing 1 and is provided as a body. Part 2 This paper size is applicable to China Standard S (CNS) A4 (210 * 297g) (Please read the precautions on the back before filling this page) Clothing -------- Order ----- I--. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (4) c: and exposed inside the bottom of the housing 1. The bottom surface is maintained with a certain gap and a butt joint portion 2 d is provided. The aforementioned pair of contact portions 2 d are respectively bent and arranged opposite to each other on a line orthogonal to the arrangement direction of the aforementioned portions 2 b. The contact portion 2d is formed such 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. In addition, the 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 and moved toward the opposite side and opposed to each other. 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. In addition, the terminal portion 2 c extended to the outside of the case 1 is provided with a plurality of curved portions 2 a at the bottom of the inside of the case 1 due to the base portion 2 b to form the same surface as the bottom surface of the case. The front end of the portion 2 c is formed into a d-shaped curved shape standing up along the outer side surface of the casing 1. Since the front end of the terminal portion 2c is formed into a D-shaped curved shape, it can be mounted on the upper surface of a circuit board using the button of the housing 1. In this case, @ the aforementioned pair of contact portions 2 d will not recover along the aforementioned base portion 2 b, and the bent portion 2 a will be distorted, that is, on a line orthogonal to the arrangement direction of the aforementioned base portion 2 b. So that even if a plurality of bends * 2 2 fa are provided in the housing 1, the bending errors 2 a will not be affected by the processing error, and the gap between the contacts can be set to the minimum with the highest accuracy. The miniaturization of the casing 1 is further provided with a fastening groove portion 1 a which is fastened to the fastening protrusion of the hooking portion of the rear button post on a pair of opposite inward sides of the casing 1. By setting this fastening groove part 1 a, the button post can be guided to this paper standard to apply the 囷 National Standard (CNS) A4 specification (210 X 297 male cage) (please first) Read the notes on the back and then fill out this page) ---- Order ----- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Online Economics Α7 Β7 ^ 3 άβ3 ί 5. Description of the invention (5) (Please read the first Cautions Refill / Knife 1) Inside the aforementioned housing 1 and limit it. In addition, the four corner portions of the fj surface in the rectangular shape of the casing 1 are provided with a flat-angled sliding surface portion 1 b, which is arranged to slide relatively to the sliding surface portion of the button column described later. 1 b. Even in the case of the oblique button post, the stable sliding of the button post can be performed, so the feeling during operation is improved. Further, the sliding surface portion 1b provided in the case 1 is not limited to a planar shape, and may be a circular arc shape. Printed by the Employees' Cooperative of the Bureau of Wisdom and Finance of the Ministry of Economic Affairs, the activity contact 3 is formed by a flexible phosphor bronze or stainless steel plate with a slightly circular shape, and a ring-shaped stacking portion 3 a is formed on the outside. An arc-shaped hole 3 b is provided in the central portion of this stacking portion 3 a. A contact piece 3 d is formed in the central portion of this hole 3 b, and one end thereof is connected to the aforementioned 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 rocked on the stacking portion 3 a through the connecting portion 3 c, and the front end side thereof is inclined slightly upward and bent at an angle. The contact pieces 3 d are each formed into an oval shape, and the longitudinal direction of the ellipse is on the same line as the arrangement direction of the contact portions 2 cl 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 contact piece 3 d is widened, and a stable control can be obtained. child. It is possible to achieve the miniaturization of the entire movable contact 3 as described above. Also, in the aforementioned contact piece 3 d, on the side facing the rubber spring to be described later, that is, on the curved upper side that is cut out and inclined, this rubber is formed. Abutment protrusions 3 e for spring contact «This protrusion 3 e is not only one but may be provided in plural, and its shape is not limited to one. It can be formed into, for example, a circular arc or a round paper. CNS) A4 specification (210 X 297 public love) -8-43683I " V. Description of the invention (6) (Please read the precautions on the back before filling in this yellow) Ring shaped protrusions. By providing the protruding portion 3 e, the rubber spring described later can be prevented from closely contacting the contact piece 3 d, and a metal sound can be prevented from occurring when they are separated from each other during operation. In addition, since the substantially central portion * of the contact piece 3 d is pressed, the contact is stable. The rubber spring 4 is formed of a flexible elastic body or silicon rubber, and the outer shape is formed as an open arch below, and includes a skirt 4 d that imparts elasticity when the button post moves and recovers, and is formed on the skirt 4 a Actuating part 4 on the upper side b. An actuating protrusion 4.c is formed on the lower side of the actuating portion 4b, and the front end of the actuating protrusion 4c is in contact with the protrusion 3e of the contact piece 3e provided at the aforementioned movable contact. Also, this embodiment Although it is formed by a metal plate with elasticity, and it is arranged between the fixed terminal 2 and the rubber spring 4, it is well known that carbon black contacts and the like can be integrally formed in the operating protrusion 4 c of the rubber spring 4. Lower end. In this case, the aforementioned movable contact 3 is not required, and the number of parts can be reduced. _ Printed by the Employees' Cooperative of the Wisdom Toshihiko Bureau of the Ministry of Economy The button post 5 is formed into a substantially rectangular shape with a molding material such as synthetic resin. The upper part is provided with a flat pressing part 5 a for manipulation by human fingers. An upper surface of the operating portion 4 b that abuts the rubber spring 4 is formed on the lower side of the pressing portion 5 a, and the pressing spring 5 b is bent toward the movable contact side, and the pressing protrusion 5 b projects toward the lower side. A pair of fastening portions 5 d are formed on a pair of side portions facing the button column 5 and have fastening protrusions 5 c, which are fastened to fastening groove portions 1 a provided on the inner side of the housing 1. When the aforementioned button post 5 moves and returns, the aforementioned button stem 1.5 is limited to the aforementioned housing 1. On the inner side of this fastening part 5 d, that is, on the side opposite to the skirt part 4 a of the rubber spring 4, a bend is formed to receive the skirt part 4 a which is bent when pressed. The paper standard is generally the national standard (CNSM4). Specifications (210 X 297 pens) 4 3 683] A7 _: ___B7 V. Description of the invention (part, along with the skirt part 4, this retreat part 5 e is provided, although the thickness of the central part in the direction is so large that The buckle 5 e makes the two sides, so even if the entire buckle of the aforementioned buckle 5 d does not need to be enlarged (increasing this embodiment, the front retreat portion is formed into an arc shape, and the skirt 4 a can be received outside. Form an arc-shaped recessed retreat 5 e. You can miniaturize the aforementioned button post 5 ^ Please read the notes on the back of t * before filling (write this page to set the retreat 5 e, the aforementioned buckle 5 The d extension degree, that is, the strength of the thinned portion 5 d of the aforementioned retreat portion 5 e is reduced, but a thick wall is formed relative to the thickness of the retreat portion. Since these two side portions form the retreat portion 5 e of the thick wall portion 5 d The thin wall is formed, and the bending strength of the body is also ensured, and because the aforementioned fastening portion is 5 d thick), the front The button post 5 is miniaturized. Moreover, the skirt portion 4 a of the rubber spring 4 is externally shaped so that the aforementioned retreat portion 5 e is not limited to this, and the shape of the curved portion 4 d of a may also be made, for example, an angular recessed economic portion. Printed by the Consumer Property Cooperative of the Intellectual Property Bureau, a leg portion 5 f extending to the inner bottom surface side of the casing 1 is provided on the rectangular four-segment portion of the button column 5. A chamfer is formed on the outside of the leg portion 5 f. The flat sliding surface 5 g forms the sliding surface 5 g of the leg portion 5 f, and the sliding surface 1 b is relatively slid with the sliding surface 1 b provided on the four inner sides of the above-mentioned case 1. The aforementioned leg portion 5f is provided to make the relative sliding stability between the inner side surface of the housing 1 and the outer side surface of the button post 5, and the sliding movement of the button post 5 in the housing 1 can be achieved by using the button post The foot part 5 of 5 is provided with the aforementioned sliding surface part 5 g. Even in the case of pressing the hip part F of the button column 5 in a skewed manner, it can also slide with the four hip parts provided on the inner side of the housing 1. Facial paper is again applicable to China National Standard (CNS) A4 (210 X 297 cm) -10 · 4 3 683 1 A7 B7 V. Description of the invention (8) The part 1 b slides relatively, which makes the aforementioned button post 5 slide more stably and improves the operation feeling of the aforementioned button post 5. Moreover, the sliding surface 5 g of the aforementioned button post 5 is provided The invention is not limited to a flat shape, and may be a circular arc shape. Effect of the Invention As described above, the push button switch of the present invention is formed on a button post and has a fastening part with a fastening protrusion, which is formed on the surface facing the rubber spring. The receding part that accepts the bent part of the rubber spring can be reduced by the thickness of the receding part and the overall thickness of the buckling part can be reduced, thereby achieving the miniaturization of the button post, the miniaturization of the housing, and the miniaturization of the entire push button switch . In addition, since the retreat portion formed in the fastening portion is formed into an arc shape following the shape of the rubber spring, even if the rubber spring is bent by pressing the button post, the rubber spring does not collide with the fastening portion and the button post. Stable sliding. 1 Since the fastening portion is formed with thicker walls on both sides than the central portion in the extending direction of the fastening portion, even if the central portion of the fastening portion is formed with a thin wall, the strength is covered by the two side portions. Therefore, the bending strength (fastening strength) of the entire fastening portion can be secured by a simple shape. In addition, since the movable contact disposed on the fixed terminal is formed by a metal plate having elasticity, and is disposed between the rubber spring and the fixed terminal, the contact portion of a pair of fixed terminals can be reliably contacted, thereby improving the contact. Point contact reliability. Brief Description of the Drawings Fig. 1 is a plan view showing a push button switch according to an embodiment of the present invention. This paper size applies to the 0 national standard (CNS > A4 size (210 * 297 cm) (please read the precautions on the back before going to this page)). Printed ^ 3683 t A7 ______B7___ 5. Description of the invention (9.) Figure 2 is a front view of a push button switch according to an embodiment of the present invention. Figure 3 is a cross-sectional view of the present invention taken along line 3-3 of Figure 1. Fig. 4 is a cross-sectional view of the present invention taken along line 4 to line 4 of Fig. 1. Fig. 5 is an explanatory view showing a state where the button post is moved and the rubber spring is bent from the initial state of Fig. 4. Fig. 6 is a view showing A plan view of a housing according to an embodiment of the present invention. FIG. 7 is a plan view showing a movable contact according to an embodiment of the present invention. FIG. 8 is a front view showing a movable contact according to an embodiment of the present invention. A sectional view showing a button post according to an embodiment of the present invention. FIG. 10 is a sectional view of the present invention taken along line 10—10 of FIG. 9 and FIG. 11 is a plan view showing a button post of a conventional push button switch. The figure is a cross-sectional view of a conventional person along line 1 2 _ 1 2 of Figure 11. Please read the back first. Note: 'Fill in' and write this page to order. Description of symbols printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Employees' Cooperatives 1 Case la Fastening groove lb Sliding surface 2 Fixed terminal 2 a Bend 2 b Base 2 c Terminal 2 d The paper size of the contact department applies the Chinese national standard. (CNS) A4 specification (210 * 297 mm) -12- ^ 3633 f 5. Description of the invention (10) A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5λ 3 Moving contact 3 a Stacking part 3 b Hole 3 c Connecting part 3 d Contact piece 3 e Protrusion 4 Rubber spring 4 a Skirt 4 b Actuating part 4 c Actuating protrusion 4 d Bending part 5 Button post 5 a Pressing part 5 b Pressing the protrusion 5 c Fastening the protrusion 5 d Fastening 5 e Retreat 5 f Feet 5 g Sliding face (Please read the precautions on the back before filling out this page) This paper size applies to Chinese national standards (CNS ) A4 size (210x297 mm) -13-