玖、發明說明： 【發明所屬之技術領域】 本發明關於一種開關裝置，特別關於一種作爲電子設備的 電源開關而使用的開關裝置。 【先前技術】 以圖12、圖13說明先前作爲電源開關使用的開關裝置。先 前的開關裝置主要由以下部分構成：包含絕緣材料的殼體 21 ,設置於該殼體21的内底面上，且在上面固定有固定接點 部22a的固定端子22 ;與該固定端子22相鄰而設置於殼體21 的底面上的中央端子23;可動地支持該中央端子23且在一端 部上形成可與固定端子22抵接、分離的可動接點部29的可動 接點28;在該可動接點28與中央端子23上被連接支持且支持 可動接點28的支持板27 ;被彎曲地連接支持於可動接點28與 中央端子23之間，且通過自身的彎曲動作而將可動接點28向 上下方向驅釦的板簧30;與該板簧30的突起3〇a抵接的滑動 構件3 1。 並且，藉由按壓操作滑動構掉3丨的操作部3丨a，可透過板 黃30將可動接點28的可勤接點部29向固定端子22的方向或 從固定端子22離開的方向變位。 此種先前的開關裝置在將滑動構件3丨的操作部3 u向箭頭 A方向按壓操作時，突起30a由滑動構件31所按壓，板簧3〇 向下方下降，同時可動接點28也向下方下降。 藉此’ 一端部的可動接點部29與固定接點22a抵接。如此， 由於固定端子22與中央端子23藉由可動接點28導通，開關回 84792 1223822 路成爲導通狀態。 此外，如果解除施加在操作部3丨3上的壓力，則藉由恢復 彈簧32的彈性力使滑動構件3丨回復到圖丨2所示的初期狀 態，同時可動接點28也回復到初期的狀態，則可動接點部29 離開固定部22a，從而開關回路成爲斷開狀態。 但是，如前上述的先前開關裝置由於可動接點部29與固定 接點22a抵接而導通時發生的電弧，會使可動接點部29與固 定接點部22a熔接，故爲了剝離該熔接則必須加大恢復彈簧 32的彈簧壓，因此，存在了按壓操作部31&的推力變大、操 作性降低的問題。 【發明内容】 本發明的目的在於解決以上的問題，提供一種操作性佳的 開關裝置，其即使因開關回路導通時發生的電弧將彼此的接 點部熔接時，也能容易地剝離這些熔接，防止發生抵接不良。 作爲解決上述技術問題的第丨解決方案，本發明的開關裝 置其特徵爲，具有：在内部具備中空狀收容部的罩構件、 以及可按壓操作收容於上述收容部内且從上述罩構件向外 方突出的操作部的滑動構件；上述滑動構件在位於上述收容 部内的開關支持部支持可動接點，該可動接點在一側形成支 點部且在另一側形成可動接點部，在上述收容部的内底面上 α置忐夠與上述可動接點抵接的固定端子，在按壓操作上述 滑動構件時，上述可動接點與上述固定端子抵接，以上述支 點部爲支點使上述另一側回轉。 此外’作爲解決上述技術問題的第2解決方案，其特徵爲， 84792 1223822 上述滑動構件在上述開關支持部上形成能夠對上述可動接 點的上述支點部進行支持的&支持部、及能夠對形成了上 述可動接點部的上述另_側進行支持的第2支持部；在對上 述滑動構件進行上述按壓操作時，上述可動接點於上述第2 支持部上支持的上述另一側自上述第2支持部離開。 另外，作爲解決上述技術問題的第3解決方案其特徵爲， 上述固定端子具㈣夠與上述可動接點的上述可動接點部 抵接的固定接點部；在上述可動接點的上述可動接點部的表 面上設置的抵接面及/或在上述固定端子的上述固定接點部 的表面上設置的抵接面鼓起形成爲圓弧狀。 此外，作爲解決上述技術問題的第4解決方案，其特徵爲， 上述可動接點的上述可動接點部經常保持被施加有向固定 端子側的彈性力，在按壓操作上述滑動構件時，距離形成於 上述可動接點上的上述支點部較遠侧的上述可動接點部的 上述抵接面與上述固定接點部最初抵接，之後由於上述可動 接點進行上述回轉，使得相互抵接的上述抵接面的抵接位置 向距離上述支點部較近側移動。 【實施方式】 以下，以圖1至圖6顯示本發明的一實施例。圖i爲本發明 一實施例的開關裝置立體圖，圖2爲其分解立體圖，圖3爲本 發明的滑動構件的俯視圖，圖4爲本發明的滑動構件的前視 圖，圖5爲圖4的仰視圖，圖6爲沿圖5的6-6線的剖面圖，圖7 爲圖4的右側視圖，圖8爲本發明的開關裝置要部剖面圖，圖 9爲本發明的可動接點，圖1 0、圖1 1爲說明本發明的接點部 84792 1223822 動作的概略圖。 本各月的開關裝置如圖2所示，在最下部設置有底壁卜該 底壁丨由樹脂材料等絕緣材料構成’外形大致爲矩形，將後 述罩構件12的下方遮蔽’構成收容部14的内底面。 在上述底壁㈤大致中央部上以特定的高度直立設置有將 後述罩構件12内部的收容部14分隔爲2個的分隔壁心此 外二在分隔壁U的前後方向的各端部上，彼此相對地形成由 匸子的槽構成的導向部lb，由該導向部a對後述滑動構件 6可滑動地導向。 此外，在分隔壁la的令央部附近的圖示左側中，以比分隔 土 la低的同度直立没置形成為橢圓形的棒狀彈簧支持部 lc。此外，在分隔壁la的中央部上形成特定尺寸的缺口槽id。 另外，在底壁1上將金屬板彎曲而形成的第丨、第2固定端 子2、3分別成一對地壓入並成一體。 上述第1、第2固定端2、3具有從後述收容部ι4的構成内底 面的底壁1上面露出的接點部2a、3a，以及從該接點2&、3a 向一側大致呈L字狀地彎曲而向圖示下方側延伸的端子部 2b、3b，該端子部2b、3b被壓入形成於底壁丨上的壓入孔if， 子ap2b、3b的4端部從底壁1的内面向外部突出。 此外’在第1固定端子2的接點部2a上，爲了使與後述由導 體板構成的第1可動接點10的導通可靠，分別藉由鉚接或壓 入等固著有其他構件構成的固定接點部2 c。 另外，在底壁1的棒狀彈簧支持部U上，能夠安裝板簧4與 第丨螺疑彈簧5。上述板簧4如圖2所示，由在中央部上形成了 84792 可貫通彈簧支持部1 C的憜圓形狀的支持孔4a的基部4b，及將 該基部4b的兩端部相互對置地向上方彎曲的一對臂部乜構 成，在泫臂部4C的前端上形成相互對置並向内側圓狐狀突出 的滑動部4d。 亚且，彼此相對的臂部4c的間隔尺寸形成爲與基部仆相比 前端部的滑動部4d側爲負值。 上述板簧4在其橢圓形狀的支持孔仏由橢圓狀的彈簧支持 部lc所貫通時，可定位並安裝於底壁1上面的特定位置上。 此外，在從安裝於底壁！上面的板簧4的支持孔钧向上方突 出的彈貫支持部1c上，可安裝包含壓縮螺旋彈簧的第1彈簧 另外，底壁1在形成於分隔壁“的兩端部上的槽狀導向部 lb上在刀隔壁la上沿著圖不的上下方向，可滑動地導引由 樹脂材料等絕緣材料構成的滑動構件6。 參照圖3〜圖7說明上述滑動構件6,滑動構件6如圖*的前 視圖所示，在大致令央部形成特定厚度的支持壁以，從該支 持壁6a的上表面向上突出的棒狀操作部讣形成特定的高 度。在該操作部6b上形成有可M人後述驅動棒_壓入孔 6c ’其具有特定的孔徑和深度。 並且，在支持壁6a上，從圖3所示在上下方向的上方一侧 的一端面6d和下方—側的另-端面6e，分別突出形成板狀的 導向部6f’在底壁1的導向㈣上可自由滑動地導引該導向 部6f。 形成可支持後述第1 另外’在圖4所示的支持壁6a的左側 84792 1223822 可動點10的第1接點支持部7。該帛I接點支持部7形成有從支 持J 6a的上^向圖不的左側呈屋頂狀延伸的壁構件，内部 成中工狀。而第1接點支持部7在形成導向部㈣支持壁^的 各端面6d 6e上，形成可支持後述第1可動接點1 0的支點部 l〇b的作爲第1支持部的一對第1、第]支持突起几，7c。 作爲該第1支持部的第1、第2支持突起7b如圖4所示，係具 有特疋尺寸的間隙而形成，該間隙部分可支持後述第1可動 接點10的支點部l〇b。 並且，第1接點支持部7其與支持部6a相對側的壁構件化的 下方側，形成有作爲第2支持部的鈎狀的止動部7d。該止動 部7d從壁構件7a的下方内面向作爲支持部以方向的内側突 出而形成。 另外，在構成第1接點支持部7的壁構件乃的頂面上，形成 有具有特定深度之大致爲矩形狀且可支持後述第2螺旋彈簧 11的彈簧支持孔7e。 ” 並且，如圖4所不，在支持壁6a的右側形成有可支持後述 第2可動接點Π的第2接點支持部8。 該第2接點支持部8其在圖示右側從支持壁以的上部形成 有大致呈L字狀的彈簧支持部8a，在該彈簧支持部“與支持 壁6a之間形成特定尺寸的導向槽朴。 此外，在導向槽8b的上部，形成有與在底壁丨的分隔壁卜 上形成的缺口槽1 d結合並可滑動的結合部$ c。 另外，在彈簧支持部83的下方側，突出地形成有可支持由 後述扭轉線圈彈簧構成的第2可動接點丨丨的捲繞部lu的棒 84792 1223822 狀接點支持部8d。此外’滑動構件6如圖3所示，在接點支持 部8d的上下，形成從彈箐支持部〜處突出而尺寸各自不同的 一對彈簀固定部8e、8f。 各彈簧固定部8e、8f如圖4所示，前端部形成鈎狀，能夠 固定連接後述由担轉線圈彈簧構成的第2可動接點"的臂部 lib。 此外，在圖5的仰視圖中所示滑動構件6的下面侧，在支持 壁6a的大致中央部上形成特定孔徑尺寸的彈簧支持孔&。該 彈菁支持孔6g的深度如圖6所示，形成爲到達第丨接點支持部 7的壁構件7a的頂面附近。 此外，如圖5所示，在形成於支持壁以上的彈簧支持孔以 的上下附近，以特定的深度形成能夠收容板簧4臂部扑的板 簧收容部9。 該板簧收容部9如圖7所示，在下部側以特定的幅度尺寸形 成相對的第1滑動面9a,在上部侧以比第！滑動面“的幅度尺 寸寬的尺寸形成相對的第2滑動面9b，連接第1滑動面9a與第 2滑動面9b的階梯部9c形成為傾斜狀。 另外，如圖7所示，在板簧收容部9中收容以二點假想線顯 示的板簧4的臂部4c時，板簧4的各滑動部4d、4d壓接於第工 滑動面9a上。在此狀態下，如果按壓滑動構件6使其向下方 下降，則板簧4的滑動部4d會跨上階梯部9c，從而板簧4發生 彈性變形° 此時，按壓操作滑動構件6的操作力變化，藉由該操作力 的變化，操作者可感到卡嗒（click)的感覺。 84792 狀n，在滑動構件6的第1接點支持部7上，能夠支持平板 屬板等方形的第1可動接點丨❹。該第1可動接點1〇由金 1=導電性構件構成，如圖2所示，具有平坦狀的大致長 广的基部l〇a’從該基部1〇a的長度方向的兩端部向—方 大出的舌片狀支點部10b形成爲一對。 而2，各支點部1〇b、10b可支持在滑動構件6的第i、第2 支持突起7b、7c之間的間隙部分中。 。此外第1可動接點1〇在基部10a的大致中央部分上形成為 圓形的特定深度的彈簧接受部1〇c。此外，在基部i〇a上，在 一對支點部1 Ob附近，向圖示下方側突出形成圓形的可動接 點部l〇d。 此外，與形成支點部i0b的一側相反的基部i 0a的另一側 10e可支持於滑動構件6的止動部上。 並且，在基部1 〇的突出形成的一對接點部！ 〇d係表面的抵 接面10f鼓起而形成爲圓弧狀。 此外，圖2所示的由壓縮螺旋彈簧構成的第2螺旋彈簧丨j， 係位於第1可動接點1〇的彈簧接受部1(^上，該第2螺旋彈簧 1 1的上端部被支持於形成在滑動構件6的壁構件7a頂面上的 彈簧支持孔7e中，對第1可動點1 〇施加向下側的彈性力。 此種被第2螺旋彈簧1 1施加彈性力的第1可動接點1 〇，其支 點部10b被支持於作爲第1支持部的第！、第2支持突起7b、7c 之間，與支點部1 Ob相反的另一側1 〇e支持於作爲第2支持部 的鈎狀的止動部7 b上，從而被安裝在滑動構件6上。 即，經常保持由第2螺旋彈簧1 1對可動接點10的可動接點 84792 -12- 1223822 部丨〇d側施加向第丨固定接點丨側的彈性力在按壓操作滑動 構件6時’可動接點丨〇的可動接點部⑽成爲能夠與固定：點 2的固定接點部2c抵接。 ” 亚且，由第丨可動接點10及一對第丨固定端子2構成作爲電 源開關的第1開關部，當按壓操作滑動構件6而下降時，”第^ 可動接點10的一對可動接點部10d、1〇d與第1固定端子2的各 固定接點部2c、2c抵接。 由此，一對第1固定端子2、2藉由第i可動接點1〇導通第 1開關部成爲導通狀態。 即，本發明的開關裝置在收容部14的底面設有可與可動接 點10抵接的固定端子2，當按壓操作滑動構件6時，可動接點 10的可動接點部10d即與固定端子2抵接，將支點部i〇b作爲 支點使另一側1 0 e回轉。 此外，在滑動構件6的第2接點支持部8上支持著包含杻轉 線圈彈簧的第2可動接點12。該第2可動接點12如圖2所示， 具有將由鋼琴線等構成的線簧多圈捲繞的捲繞部12&，從該 捲繞部12a形成具有特定的開放角度α並向外方直線狀延伸 的2根臂部12b、12b。 並且，第2可動接點12在將捲繞部12a支持在第2接點支持 部8的接點支持部8d上’同時，一方的臂部丨2b固定於一方的 彈簧固定部8e上’另一方的臂部12b固定連接於另一方的彈 簧固定部8f上。 並且，由第2可動接點12和一對第2固定端子3構成作爲檢 出開關的第2開關部’在按壓操作滑動構件6使第2可動接點 84792 -13 - 1223822 12下降時，2根臂部12b、12b與一對第2固定端子3抵接。 藉此’ 一對第2固定端子3、3透過第2可動接點12導通，第 2開關成爲導通狀態。 此外，在底壁1的上方，設置有覆蓋底壁1的上方的罩構件 13。該罩構件13周圍由外周壁na圍繞，同時上部由頂壁i3b 復蓋’在内部形成能夠收容滑動構件6等的中空狀的收容部 14 〇 該中空部14的下方開放，底壁丨可嵌合於該下方的開放部 分。 此外，罩構件13在上部的頂部13 b中央部上形成用於安裝 後述橡膠構件15的圓形的槽部i3e，在該槽部13c的外周以特 疋的南度突出形成特定厚度的壁狀的鉚接部l3d。 另外’在圓狐狀的槽部13 c的内側，以特定的孔徑形成滑 動構件6的操作部6b可貫通的通孔i3e。 此外，在頂部13b的槽部13c中，如圖2所示，設置有内部 形成中空的圓頂形橡膠構件15。該橡膠構件15由圓頂狀的外 周壁15a及形成於該外周壁i5a下部的外周部上的特定厚度 的凸緣15b構成。 並且，在圓頂狀的外周壁15a的頂部，貫通形成有能夠壓 入後述驅動棒16的壓入孔15c。 如此的橡膠構件15在凸緣15b位於槽部13c的狀態下，藉由 鉚接部1 3d插入到内側而鉚接安裝，與罩構件丨3 一體化。 此外，驅動棒16包含圓盤狀的操作部i6a，及可壓入橡膠 構件丨5的壓入孔15c與滑動構件6的壓入孔心中的棒狀壓入 84792 14 1223822 部19b構成。 如此構成的本發明的開關裝置，其組裝首先在底壁1上壓 入第1、第2固定端子2、3各自的端子部3b、4b。之後，在底 壁！的彈簧支持部U上插入安裝板等4, _在板普4的基部 4b上插入安裝第1螺旋彈簧$。 此外，滑動構件6在第丨接支持部7上安裝並支持第丨可動接 點10,同時，在第1可動接點10的彈簧接受部1〇c和滑動構件 6的彈簧支持孔7e中安裝第2螺旋彈簧丨丨的兩端部。 如此，則第1可動接點1〇以位於第i、第2支持突起乃、Μ 之間的支點部i〇b爲支點，另一側1〇e支持於止動部7d上從 而將第1可動接點10安裝於止動構件6上。 此外，在滑動構件6的第2接點支持部8上，安裝有由扭轉 線圈彈簧構成的第2可動接點1 2。 如此，安裝有第1、第2可動接點1〇、12的滑動構件6，在 將從支持壁6a的兩端部6d、6e突出的導向部6f嵌合於底壁^ 的導向部ib中的狀態下，從上方蓋上鉚接安裝有橡膠構件15 的罩構件13，藉由在罩構件13下方的開放部分中壓入底壁 1 ’使底壁lfe時固定於導向構件13上。 如此，則滑動構件6的操作部6b從罩構件13的通孔13e向上 方突出，位於橡膠構件15的圓頂狀的外壁l5a内部。 此後，藉由將驅動棒16的壓入部16b壓入橡膠構件15的壓 入孔1 5c和滑動構件6的壓入孔6c，將罩構件1 3内部的收容部 1 4的上方密閉。 因此’能夠防止水等從罩構件1 3的上方向收容部1 4侵入。 84792 -15- 1223822 此外，如圖8所示，藉由將底壁1的外周部和罩構件13的外 周壁13a以及第1、第2固定端子2、3與底壁的壓入孔1?各自 的間隙用環氧樹脂等黏接劑構成的密封件1 7密封，能夠將内 部的收容部14的下方側密閉’防止水等從底壁1側侵入收容 部1 4 〇 如此組裝的本發明的開關裝置中，内部的收容部14如圖8 所示’由底壁1的分隔壁la分隔爲2個，在圖中左側形成有第 1收容部1 8，在圖中右側形成有第2收容部丨9。 並且，在第1收容部18形成支持第丨可動接點1〇的作爲電源 開關的第1開關部，在第2收容部19形成支持作爲檢測開關的 第2可動接點12的第2開關部。 如此構成的本發明的開關裝置的操作如圖8所示，於滑動 構件6位於上方，第丨、第2開關部從斷開的初期狀態下，操 作者將驅動棒16向下方按壓，使滑動構件6下降時，位於滑 動構件6的第1滑動面％上的板簧4的滑動部“使板簧收容部 9的傾斜狀階梯部9c滑動，增大施加於驅動棒“上的按壓 力進步將滑動構件6向下方按壓，滑動部4c位於第2滑動 面9b上此時，按壓操作滑動構件6的操作力急劇地變小， 按壓操作滑動構件6的操作者能夠感覺到卡嗒感。 在感覺到這種“卡嗒，，感的同時，第丨可動接點⑺的可動 接點部i〇d與第㈣定端子2的固定接點部2〇、2〇抵接，一對 第1固疋端子2、2藉由第i可動接點1〇導通，第！開關部成爲 導通狀態。 對该第1開關部的導4 I 導通動作坪細祝明，首先，按壓操作滑 84792 -16- 1223822 動構件6時，如圖ι〇所示，距離形成於第丨可動接點ι〇上的支 點部10b較遠一側的可動接點部丨0(1的抵接面1〇f最初與固定 接點部2c抵接。 此後，如圖1 1所示，進一步按壓滑動構件6使之下降時， 可動接點1 0以支點部1 Ob爲支點回轉。 由於該可動接點1〇回轉，如圖1丨所示，相互抵接的抵接面 的抵接位置向距離支點部1 〇b較近的位置移動。 即，相互抵接的抵接面的抵接位置從圖丨〇的一點假想線所 示的B點向圖11所示的c點移動。 藉由上述抵接面的抵接位置從B點移動到c點，在最先抵 接的B點上，即使發生電弧使固定端子2與可動接點1〇溶接， 由於藉由滑動構件6的按壓操作，抵接位置從b點向c點移 動，故能夠容易地剝下溶接。 此外，與此同時，第2可動接點12的一對臂部12b、1孔與 第2固定端子3的接點部3a、3a抵接，一對第2固定端子3、3 藉由第2可動接點12導通，第2開關部成爲導通狀態。 上述第1開關部在開關導通時，即使發生電派，由於第^ 收容部18、第2收容部19之間由分隔壁la遮蔽，發生的電弧 不會飛濺入第2收容部1 9中。因此，第2開關部不會發生接點 不良等。 如在該第1、第2開關部導通狀態下解除驅動棒1 6的按壓， 滑動構件6會因第1螺旋彈簧5的彈性力而被推向上方，自動 回復到圖8所示的初期狀態，第i、第2開關部爲斷開狀態。 在上述的本發明的開關裝置的實施例中，以可動接點i 〇 84792 -17- 1223822 的可動接點部1 Od的抵接部1 Of鼓起爲圓弧狀的情況進行了 說明，但也可爲第1固定端子2的固定接點部2c的抵接面鼓起 爲圓弧狀。 或者，也可以爲固定接點部2c及可動接點部i〇d的兩者的 抵接面鼓起形成爲圓弧狀。 即’本發明的開關裝置只要使在可動接點丨〇的可動接點部 l〇d的表面上設置的抵接面i〇f，及/或在固定端子2的固定接 點部2c的表面上設置的抵接面鼓起爲圓弧狀即可。 【發明的效果】 如以上所說明，由於本發明的開關裝置在按壓操作滑動構 ..w 件後，可動接點的可動接點部與固定端子抵接，以支點部作 爲支點使另一側回轉，所以，藉由該可動接點的回轉，能夠 移動可動接點與固定端子的抵接位置，故即使由於抵接時發 生的電狐使可動接點與固定端子熔接，亦能容易地將此種熔 接剝開。 此外，由於按壓滑動構件時，可動接點的支持於第2支持 部上的另一側離開第2支持部，所以，能夠加大可動接點的 回轉量，能夠將由於電弧的發生而熔接的可動接點和固定端 子可靠地剝開。 此外’由於在可動接點部的表面設置的抵接面及/或在固 定接點部的表面設置的抵接面係鼓起形成爲圓弧狀，藉由可 動接點回轉，彼此的抵接面抵接的位置會連續地移動，而能 夠使可動接點與固定端子的抵接穩定。 此外’在按壓操作滑動構件時，距離形成於可動接點上的 84792 -18- 1223822 支點部較遠側的可動接點的抵接面與固定接點部最初會抵 接’之後，由於藉由可動接點的回轉，彼此抵接的抵接面的 抵接位置移動到距離支點部較近側，而能使抵接更加穩定。 【圖式簡單說明】 圖1爲本發明一實施例的開關裝置的立體圖。 圖2爲本發明的開關裝置的分解立體圖。 圖3爲本發明的滑動構件的俯視圖。 圖4爲本發明的滑動構件的前視圖。 圖5爲圖4的仰視圖。 圖6爲沿圖5的6-6線的剖面圖。 圖7爲圖4的右側視圖。 圖8爲本發明的開關裝置要部的剖面圖。 圖9爲本發明的可動接點的視圖。 圖1 〇爲說明本發明的接點部的動作的示意圖。 圖1 1爲說明本發明的接點部的動作的示意圖。 圖12爲說明先前的開關裝置的要部的剖面圖。 圖1 3爲說明先前的開關裝置的要部的剖面圖。 圖式代表符號說明】 1 底壁 la 分隔壁 lb 導向部 1 c 彈簧支持部 Id 缺口槽 If 壓入孔 84792 19 1223822 2 第1固定端子 3 第2固定端子 2a 接點部 2b 端子部 2c 固定接點部 3a 接點部 3b 端子部 4 板簧 4a 支持孔 4b 基部 4c 臂部 4d 滑動部 5 第1瘅簧 6 滑動構件 6a 支持壁 6b 操作部 6c 壓入孔 6d 端面 6e 端面 6f 導向部 7 第1接點支持部 7a 壁構件 7b 第1支持突起 7c 第2支持突起 84792 -20- 1223822 7d 止動部 7e 彈簧支持孔 8 第2接點支持部 8a 彈簧支持部 8b 導向槽 8c 結合部 8d 接點支持部 8e 彈簧固定部 8f 彈簧固定部 9 彈簧收容部 9a 第1滑動面 9b 第2滑動面 9c 階榛部 10 第i可動接點 10a 基部 10b 支點部 10c 彈簧接受部 lOd 可動接點部 lOe 一側 lOf 抵接面 11 第2螺旋彈簧 12 第2可動接點 12a 捲繞部 12 b 臂部 84792 -21 1223822 13 罩構件 13a 外周壁 13b 頂壁 13c 槽部 13d 鉚接部 13e 通礼 14 收容部 15 橡糝構件 15a 外周壁 15b 凸緣 16 驅刼棒 16a 操作部 16b 壓入部 17 密知件 18 第1收容部 19 第2收容部 21 殼體 22 固定端子 22a 固定接點部 23 中央端子 27 支持板 28 可動接點 29 可動接點部 30 板簧 84792 -22- 1223822 3 0a 突起 3 1 滑動構件 -23 - 847922. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a switching device, and more particularly to a switching device used as a power switch of an electronic device. [Prior Art] A switching device previously used as a power switch will be described with reference to FIGS. 12 and 13. The previous switchgear mainly consisted of the following: a housing 21 containing an insulating material, a fixed terminal 22 provided on the inner bottom surface of the housing 21, and having a fixed contact portion 22a fixed thereon; A central terminal 23 disposed adjacent to the bottom surface of the housing 21; a movable contact 28 for movably supporting the central terminal 23 and a movable contact portion 29 capable of abutting and separating with the fixed terminal 22 at one end; The movable contact 28 and the central terminal 23 are connected to support and support the supporting plate 27 of the movable contact 28; the movable contact 28 is flexibly connected and supported between the movable contact 28 and the central terminal 23, and is movable by its own bending action The contact spring 28 is a leaf spring 30 that is buckled in the up and down direction; and a sliding member 31 that abuts the protrusion 30a of the leaf spring 30. In addition, by pressing and sliding the operation portion 3 丨 a of 3 丨, the movable contact portion 29 of the movable contact 28 can be changed in the direction of the fixed terminal 22 or the direction away from the fixed terminal 22 through the plate yellow 30. Bit. When such a conventional switch device presses the operating portion 3 u of the sliding member 3 丨 in the direction of arrow A, the protrusion 30a is pressed by the sliding member 31, the leaf spring 30 is lowered downward, and the movable contact 28 is also downward. decline. Thereby, the movable contact portion 29 at one end portion comes into contact with the fixed contact portion 22a. In this way, since the fixed terminal 22 and the central terminal 23 are conducted through the movable contact 28, the switch returns to the 84792 1223822 circuit and becomes a conducting state. In addition, if the pressure applied to the operation portion 3 丨 3 is released, the sliding member 3 丨 returns to the initial state shown in FIG. 丨 2 by the elastic force of the restoration spring 32, and the movable contact 28 also returns to the initial state. State, the movable contact portion 29 is separated from the fixed portion 22a, and the switch circuit is turned off. However, as described above, an arc that occurs when the movable contact portion 29 comes into contact with the fixed contact portion 22a and is turned on causes the movable contact portion 29 and the fixed contact portion 22a to be welded. Therefore, in order to peel off the weld, Since the spring pressure of the recovery spring 32 must be increased, there is a problem that the thrust of the pressing operation portion 31 & becomes large and the operability is reduced. SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and to provide a switch device with excellent operability, which can easily peel these welds even when the contact portions of each other are welded by an arc occurring when the switch circuits are turned on. Prevents poor contact. As a first solution for solving the above technical problems, the switch device of the present invention includes a cover member having a hollow storage portion inside, and a cover member which can be pressed into the storage portion and is outwardly moved from the cover member. The sliding member of the protruding operation portion; the sliding member supports a movable contact at a switch support portion located in the receiving portion, the movable contact forming a fulcrum portion on one side and a movable contact portion on the other side, and the receiving portion On the inner bottom surface of α, there is a fixed terminal sufficient to contact the movable contact point. When the sliding member is pressed and operated, the movable contact point contacts the fixed terminal, and the other side is rotated with the fulcrum portion as a fulcrum. . In addition, as a second solution to the above-mentioned technical problem, the slide member 84792 1223822 is formed on the switch support portion with an & support portion capable of supporting the fulcrum portion of the movable contact, and A second supporting portion that supports the other side of the movable contact portion is formed; when the pressing operation is performed on the sliding member, the other side of the movable contact supported on the second supporting portion is from the above The second support department leaves. In addition, as a third solution to the above technical problem, the fixed terminal is provided with a fixed contact portion capable of contacting the movable contact portion of the movable contact, and the movable contact at the movable contact. The abutment surface provided on the surface of the point portion and / or the abutment surface provided on the surface of the fixed contact portion of the fixed terminal are bulged into an arc shape. In addition, as a fourth solution to the above technical problem, the movable contact portion of the movable contact is always maintained with an elastic force applied to the fixed terminal side, and a distance is formed when the sliding member is pressed and operated. The abutment surface of the movable contact portion on the far side of the fulcrum portion on the movable contact point abuts the fixed contact portion at first, and then the movable contact portion performs the rotation to make the contacted portions contact each other. The contact position of the contact surface is moved closer to the fulcrum portion. [Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. FIG. I is a perspective view of a switch device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is a top view of a sliding member of the present invention, FIG. 4 is a front view of the sliding member of the present invention, and FIG. 5 is a bottom view of FIG. 4 6 is a cross-sectional view taken along line 6-6 of FIG. 5, FIG. 7 is a right side view of FIG. 4, FIG. 8 is a cross-sectional view of a main part of a switching device of the present invention, and FIG. 9 is a movable contact of the present invention. 10 and FIG. 11 are schematic diagrams illustrating the operation of the contact portion 84792 1223822 of the present invention. As shown in FIG. 2, each month's switchgear is provided with a bottom wall at the bottom. The bottom wall is made of an insulating material such as a resin material. The shape is substantially rectangular, and the lower part of the cover member 12 described later is formed to form the receiving section 14. Inner bottom surface. A partition wall core which divides the receiving portion 14 inside the cover member 12 to be described later is formed on the substantially central portion of the bottom wall 以 at a predetermined height, and two end portions in the front-rear direction of the partition wall U are placed on each other. A guide portion 1b formed of a groove of a rafter is formed oppositely, and the later-described slide member 6 is slidably guided by the guide portion a. In addition, on the left side of the drawing near the center of the partition wall la, a bar-shaped spring support portion 1c formed in an elliptical shape is erected at a lower degree than the partition soil la. In addition, a notch groove id having a specific size is formed in the central portion of the partition wall la. In addition, the second fixed terminals 2 and 3 formed by bending a metal plate on the bottom wall 1 are press-fitted into a pair and integrated. The first and second fixed ends 2 and 3 have contact portions 2a and 3a exposed from the upper surface of the bottom wall 1 constituting the inner bottom surface of the accommodating portion ι4 described later, and the contact portions 2 & and 3a are substantially L to one side from one side. Terminal portions 2b and 3b that are bent in a shape and extend toward the lower side of the figure. The terminal portions 2b and 3b are press-fitted into a press-in hole formed in the bottom wall. The four end portions of the sub-ap2b and 3b are from the bottom wall. The inner side of 1 protrudes outward. In addition, the contact portion 2a of the first fixed terminal 2 is fixed with other members by riveting or press-fitting in order to ensure reliable conduction with the first movable contact 10 composed of a conductor plate described later. Contact section 2 c. In addition, a plate spring 4 and a first spiral spring 5 can be attached to the rod spring support portion U of the bottom wall 1. As shown in FIG. 2, the leaf spring 4 has a base portion 4 b formed in the central portion with a circular support hole 4 a of 84792 which can penetrate the spring support portion 1 C, and both ends of the base portion 4 b facing upwardly. A pair of curved arm portions 乜 are formed, and a sliding portion 4d is formed on the front end of the 泫 arm portion 4C so as to face each other and protrude inwardly in a circular fox shape. In addition, the interval dimension of the arm portions 4c facing each other is formed so that the sliding portion 4d side of the front end portion is negative compared to the base portion. The leaf spring 4 can be positioned and mounted at a specific position on the bottom wall 1 when its oval-shaped support hole 仏 is penetrated by the oval-shaped spring support portion lc. In addition, it is installed from the bottom wall! The support hole 1 of the upper leaf spring 4 protruding upward supports a first spring including a compression coil spring, and the bottom wall 1 is guided in a groove shape formed on both ends of the partition wall. A sliding member 6 made of an insulating material such as a resin material is slidably guided on the knife partition wall 1a in the up-down direction in the figure. The sliding member 6 described above will be described with reference to Figs. * As shown in the front view, a support wall of a specific thickness is formed approximately at the central portion, and a rod-shaped operation portion 突出 protruding upward from the upper surface of the support wall 6a is formed to a specific height. An operative portion 6b is formed on the operation portion 6b. The drive rod _ press-in hole 6c ′ described later has a specific hole diameter and depth. In addition, on the support wall 6a, one end surface 6d on the upper side in the up-down direction and another on the lower side are shown in FIG. 3. The end faces 6e protrude to form plate-shaped guides 6f ', respectively, and guide the guides 6f on the guide ㈣ of the bottom wall 1 to slidably guide the guides 6f. A support wall 6a shown in FIG. 84792 1223822 1st contact support for movable point 10 on the left 7. This 帛 I contact support portion 7 is formed with a wall member extending in a roof shape from the upper side of the support J 6a to the left side of the figure, and the inside is formed in a middle shape. The first contact support portion 7 is formed as a guide portion. Each of the end faces 6d 6e of the support wall ^ is formed as a pair of first and first support protrusions 7c, which are supportive portions 10b that can support the first movable contact 10 described later, 7c. As shown in FIG. 4, the first and second support protrusions 7b of the first support portion are formed with a gap having a special size, and the gap portion can support a fulcrum portion 10b of the first movable contact 10 described later. The first contact support portion 7 has a hook-shaped stopper portion 7d serving as a second support portion on the lower side of the wall member formed on the side opposite to the support portion 6a. The stopper portion 7d extends inward from below the wall member 7a. It is formed so as to protrude inward as a support portion. In addition, a substantially rectangular shape having a specific depth is formed on the top surface of the wall member constituting the first contact support portion 7 and can support a second coil spring described later. 11, the spring support hole 7e. "Also, as shown in Fig. 4, a supportable portion 6a is formed on the right side of the support wall 6a. The second contact support portions said second movable contact 8 Π. The second contact support portion 8 has a substantially L-shaped spring support portion 8a formed from an upper portion of the support wall on the right side in the figure, and a guide groove having a specific size is formed between the spring support portion "and the support wall 6a. In addition, in the upper portion of the guide groove 8b, a coupling portion $ c that is slidably coupled to the notch groove 1d formed in the partition wall bu of the bottom wall 丨 is formed. In addition, on the lower side of the spring support portion 83, A stick-shaped contact support portion 8d for supporting the winding portion lu of the second movable contact 丨 丨 constituted by a torsion coil spring described later is protruded. In addition, as shown in FIG. 3, the sliding member 6 is at the contact point. The upper and lower supporting portions 8d form a pair of elastic retaining portions 8e and 8f protruding from the elastic retaining portions and having different sizes. Each of the spring fixing portions 8e and 8f has a hook shape as shown in FIG. The arm portion lib of the second movable contact constituted by a balance coil spring is fixedly connected, which will be described later. In addition, the lower surface side of the sliding member 6 shown in the bottom view of FIG. 5 is formed on the substantially central portion of the support wall 6a. Spring Support Holes with Specific Aperture Sizes. The As shown in Fig. 6, the depth of the cyan supporting hole 6g is formed so as to reach the vicinity of the top surface of the wall member 7a of the first contact supporting portion 7. In addition, as shown in Fig. 5, the spring supporting hole formed above the supporting wall is provided with Around the upper and lower sides, a leaf spring accommodating portion 9 capable of accommodating the arm flaps of the leaf spring 4 is formed at a specific depth. As shown in FIG. 7, the leaf spring accommodating portion 9 forms a relative first slide with a specific width on the lower side. The surface 9a has an opposite second sliding surface 9b on the upper side in a size wider than the width dimension of the first! Sliding surface, and a stepped portion 9c connecting the first sliding surface 9a and the second sliding surface 9b is inclined. In addition, as shown in FIG. 7, when the arm portion 4c of the leaf spring 4 shown by a two-dot imaginary line is housed in the leaf spring accommodating portion 9, each sliding portion 4d, 4d of the leaf spring 4 is crimped to the first sliding surface 9a. on. In this state, if the sliding member 6 is pressed downward and lowered, the sliding portion 4d of the leaf spring 4 crosses the upper step portion 9c, so that the leaf spring 4 is elastically deformed. At this time, the operating force of the pressing sliding member 6 is pressed. The change is such that the operator can feel a click by the change of the operating force. 84792 shape n can support a square first movable contact such as a flat metal plate on the first contact support portion 7 of the sliding member 6. The first movable contact 10 is made of gold 1 = conductive member. As shown in FIG. 2, the first movable contact 10 has a flat and substantially broad base portion 10a ′ from both ends in the longitudinal direction of the base portion 10a. A pair of tongue-shaped fulcrum portions 10b having a large square shape are formed. On the other hand, each of the fulcrum portions 10b and 10b can be supported in a gap portion between the i-th and second supporting protrusions 7b and 7c of the sliding member 6. . Further, the first movable contact 10 is formed as a circular spring receiving portion 10c having a specific depth in a substantially central portion of the base portion 10a. A circular movable contact portion 10d is formed on the base portion i0a in the vicinity of the pair of fulcrum portions 1 Ob to protrude downward in the figure. Further, the other side 10e of the base portion i 0a opposite to the side where the fulcrum portion i0b is formed may be supported on the stopper portion of the sliding member 6. And, a pair of contact portions formed on the base portion 10! The abutting surface 10f of the OD-based surface is bulged to form an arc shape. In addition, a second coil spring composed of a compression coil spring shown in FIG. 2 is a spring receiving portion 1 (1) located at the first movable contact 10, and an upper end portion of the second coil spring 11 is supported. In the spring support hole 7e formed in the top surface of the wall member 7a of the sliding member 6, a downward elastic force is applied to the first movable point 10. This first type of elastic force is applied to the second coil spring 11 The movable contact point 10 is supported by the fulcrum portion 10b as the first support portion, between the second support protrusions 7b and 7c, and the other side 10e opposite to the fulcrum portion 1 Ob is supported as the second The hook-shaped stopper portion 7b of the support portion is attached to the sliding member 6. That is, the movable contact point of the second coil spring 11 pair of movable contact points 84792 -12-1223822 is always held. When an elastic force is applied to the 丨 fixed contact 丨 side on the d side, when the sliding member 6 is pressed and operated, the movable contact part 可 of the “movable contact 丨 〇” can be brought into contact with the fixed contact part 2c of the fixed point 2: ” In addition, the first movable contact 10 and a pair of first fixed terminals 2 constitute a first switch section as a power switch. When the sliding member 6 is operated to lower, "the pair of movable contact portions 10d and 10d of the ^ th movable contact 10 come into contact with each of the fixed contact portions 2c and 2c of the first fixed terminal 2. As a result, a pair of The first fixed terminals 2 and 2 are turned on by the i-th movable contact 10 and the first switch portion is turned on. That is, the switch device of the present invention is provided on the bottom surface of the accommodation portion 14 with a fixed contact with the movable contact 10. For the terminal 2, when the sliding member 6 is pressed and operated, the movable contact portion 10d of the movable contact 10 comes into contact with the fixed terminal 2, and the other side 10 e is rotated using the fulcrum portion i0b as a fulcrum. The second contact support portion 8 of the member 6 supports a second movable contact 12 including a swivel coil spring. As shown in FIG. 2, the second movable contact 12 includes a multi-turn wire spring made of a piano wire or the like. The wound portion 12 & is formed with two arm portions 12b, 12b having a specific opening angle α and extending straight outward from the wound portion 12a. The second movable contact 12 is wound. The portion 12a is supported on the contact support portion 8d of the second contact support portion 8. At the same time, one arm portion 2b is fixed to one spring The other arm portion 12b on the fixed portion 8e is fixedly connected to the other spring fixing portion 8f. The second movable contact 12 and a pair of second fixed terminals 3 constitute a second switch portion as a detection switch. 'When pressing the sliding member 6 to lower the second movable contact 84792 -13-1223822 12, the two arm portions 12b, 12b are in contact with the pair of second fixed terminals 3. By this, a pair of the second fixed terminals 3 3 and 3 are turned on through the second movable contact 12 and the second switch is turned on. A cover member 13 is provided above the bottom wall 1 to cover the top of the bottom wall 1. The cover member 13 is surrounded by an outer peripheral wall na, and at the same time, an upper portion is covered by a top wall i3b. A hollow receiving portion 14 capable of receiving the sliding member 6 and the like is formed therein. The lower portion of the hollow portion 14 is open, and the bottom wall can be embedded. Close to the open part below. In addition, the cover member 13 has a circular groove portion i3e for mounting the rubber member 15 described later on the central portion of the top portion 13b of the upper portion, and the outer periphery of the groove portion 13c protrudes to form a wall with a specific thickness to a south. Of the riveted portion l3d. In addition, a through hole i3e through which the operating portion 6b of the sliding member 6 can pass is formed inside the circular fox-shaped groove portion 13c with a specific hole diameter. Further, in the groove portion 13c of the top portion 13b, as shown in Fig. 2, a dome-shaped rubber member 15 having a hollow inside is provided. The rubber member 15 is composed of a dome-shaped outer peripheral wall 15a and a flange 15b having a specific thickness formed on an outer peripheral portion of a lower portion of the outer peripheral wall i5a. Further, a dome-shaped outer peripheral wall 15a is formed with a press-fitting hole 15c penetrating into a top portion of a driving rod 16 which will be described later. Such a rubber member 15 is riveted and installed by inserting the riveting portion 13d into the state in a state where the flange 15b is located in the groove portion 13c, and is integrated with the cover member 3. In addition, the drive rod 16 includes a disc-shaped operation portion i6a, and a rod-shaped press-fit 84792 14 1223822 portion 19b that can be press-fitted into the press-fit hole 15c of the rubber member 5 and the center of the press-fit hole of the slide member 6. The switchgear of the present invention thus constructed is assembled by first pressing the terminal portions 3b and 4b of the first and second fixed terminals 2 and 3 into the bottom wall 1, for example. After that, on the bottom wall! Insert a mounting plate 4, etc. on the spring support portion U, _ Insert and install the first coil spring $ on the base 4b of the plate 4. In addition, the sliding member 6 is mounted on the first connection support portion 7 and supports the first movable contact 10, and at the same time, is mounted in the spring receiving portion 10c of the first movable contact 10 and the spring support hole 7e of the sliding member 6. Both ends of the second coil spring. In this way, the first movable contact point 10 uses the fulcrum portion i0b located between the i-th, second support protrusions, and M as the fulcrum, and the other side 10e is supported on the stopper portion 7d to thereby support the first The movable contact 10 is attached to the stopper member 6. A second movable contact 12 made of a torsion coil spring is attached to the second contact support portion 8 of the sliding member 6. In this way, the sliding member 6 to which the first and second movable contacts 10 and 12 are attached is fitted into the guide portion ib of the bottom wall ^ with the guide portion 6f protruding from both end portions 6d and 6e of the support wall 6a. In the state, the cover member 13 on which the rubber member 15 is mounted is riveted from above, and the bottom wall 1 ′ is fixed to the guide member 13 by press-fitting the bottom wall 1 ′ into the open portion below the cover member 13. In this way, the operation portion 6b of the sliding member 6 projects upward from the through hole 13e of the cover member 13, and is located inside the dome-shaped outer wall 15a of the rubber member 15. Thereafter, the press-fitting portion 16b of the drive rod 16 is press-fitted into the press-fitting hole 15c of the rubber member 15 and the press-fitting hole 6c of the sliding member 6, thereby sealing the upper portion of the accommodation portion 14 inside the cover member 13. Therefore, it is possible to prevent water or the like from entering from the upper direction of the cover member 13 to the accommodation portion 14. 84792 -15- 1223822 In addition, as shown in FIG. 8, by pressing the outer peripheral portion of the bottom wall 1 and the outer peripheral wall 13a of the cover member 13, the first and second fixed terminals 2, 3, and the press-in hole 1 of the bottom wall? The respective gaps are sealed with a seal 17 made of an adhesive such as epoxy resin, and the lower side of the internal storage portion 14 can be sealed. The water and the like can be prevented from entering the storage portion 1 4 from the bottom wall 1 side. The present invention thus assembled In the switch device, as shown in FIG. 8, the internal storage portion 14 is divided into two by the partition wall 1 of the bottom wall 1. A first storage portion 18 is formed on the left side in the figure, and a second storage portion 14 is formed on the right side in the figure. Containment Department 丨 9. In addition, a first switch unit that supports the first movable contact 10 as a power switch is formed in the first housing portion 18, and a second switch unit that supports the second movable contact 12 as a detection switch is formed in the second housing portion 19. . The operation of the switch device of the present invention thus constituted is shown in FIG. 8. When the slide member 6 is positioned above and the first and second switch sections are disconnected from the initial state, the operator presses the driving rod 16 downward to slide. When the member 6 is lowered, the sliding portion of the leaf spring 4 located on the first sliding surface% of the sliding member 6 "slides the inclined step portion 9c of the leaf spring accommodating portion 9 and increases the pressing force applied to the driving rod" When the sliding member 6 is pressed downward, and the sliding portion 4c is positioned on the second sliding surface 9b, the operating force for pressing the sliding member 6 suddenly decreases, and the operator pressing the sliding member 6 can feel a click. When this "click, feel" is felt, the movable contact portion i0d of the first movable contact 与 abuts the fixed contact portions 20, 20 of the fixed terminal 2 and a pair of first The 1 fixed terminals 2 and 2 are turned on through the i-th movable contact 10, and the! Switch section is turned on. The conduction of the first switch section 4 I is detailed as follows. First, press the operation slide 84792- 16-1223822 When the moving member 6 is moved, as shown in Figure ι0, the movable contact portion on the far side of the fulcrum portion 10b formed on the 丨 movable contact ι0 丨 0 (1's contact surface 10f Initially, it comes into contact with the fixed contact portion 2c. After that, as shown in FIG. 11, when the sliding member 6 is further pushed down to move, the movable contact 10 is rotated with the fulcrum portion 1 Ob as the fulcrum. Turning, as shown in FIG. 1 丨, the abutment position of the abutting surfaces abutting each other moves to a position closer to the fulcrum portion 10b. That is, the abutting position of abutting surfaces abutting each other is shown in FIG. The point B indicated by the imaginary line of the line moves to the point c shown in Fig. 11. The contact position of the contact surface is moved from the point B to the point c, and the first point B is contacted. Even if an arc occurs, the fixed terminal 2 and the movable contact 10 are fused, and since the abutment position is moved from the point b to the point c by the pressing operation of the sliding member 6, the welding can be easily peeled. At the same time, the pair of arm portions 12b, 1 hole of the second movable contact 12 abut on the contact portions 3a, 3a of the second fixed terminal 3, and the pair of second fixed terminals 3, 3 pass through the second movable contact 12 When the switch is turned on, even if electricity is generated, since the first receiving portion 18 and the second receiving portion 19 are shielded by the partition wall la, the generated arc will not occur. Splashed into the second receiving portion 19. Therefore, contact failure of the second switch portion and the like will not occur. If the pressing of the driving rod 16 is released while the first and second switch portions are conducting, the sliding member 6 may be damaged. The elastic force of the first coil spring 5 is pushed upward, and automatically returns to the initial state shown in Fig. 8. The i and second switch sections are in the off state. In the above-described embodiment of the switch device of the present invention, The contact part 1 Of the movable contact part 1 Od of the movable contact part i 〇84792 -17- 1223822 swells The case of the arc shape has been described, but the contact surface of the fixed contact portion 2c of the first fixed terminal 2 may be bulged into an arc shape. Alternatively, the fixed contact portion 2c and the movable contact portion may be formed. The contact surfaces of the two of i0d are bulged and formed into an arc shape. That is, the switch device of the present invention only needs to make the contact surface i provided on the surface of the movable contact portion 10d of the movable contact. 〇f, and / or the contact surface provided on the surface of the fixed contact portion 2c of the fixed terminal 2 may swell in an arc shape. [Effects of the Invention] As described above, since the switch device of the present invention is After pressing the sliding mechanism ..w, the movable contact part of the movable contact is in contact with the fixed terminal, and the other side is rotated with the fulcrum part as a fulcrum. Therefore, the movable contact can be moved by the rotation of the movable contact. The contact position between the point and the fixed terminal, so that even if the movable contact is fused with the fixed terminal due to the electric fox that occurs during the contact, the welding can be easily peeled off. In addition, when the sliding member is pressed, the other side of the movable contact supported on the second supporting portion is separated from the second supporting portion. Therefore, the amount of rotation of the movable contact can be increased, and the welding caused by the occurrence of an arc can be welded. The movable contact and the fixed terminal are reliably peeled off. In addition, since the contact surface provided on the surface of the movable contact portion and / or the contact surface provided on the surface of the fixed contact portion are bulged and formed into an arc shape, the movable contact is rotated to abut each other. The contact position of the surface is continuously moved, and the contact between the movable contact point and the fixed terminal can be stabilized. In addition, when the sliding member is pushed and operated, the contact surface of the movable contact farther from the 84792 -18- 1223822 fulcrum part formed on the movable contact point and the fixed contact point are initially in contact with each other. The rotation of the movable contact moves the contact position of the contact surface that is in contact with each other closer to the fulcrum portion, thereby making the contact more stable. [Brief description of the drawings] FIG. 1 is a perspective view of a switching device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of a switching device according to the present invention. 3 is a plan view of a sliding member according to the present invention. Fig. 4 is a front view of a sliding member of the present invention. FIG. 5 is a bottom view of FIG. 4. FIG. 6 is a sectional view taken along line 6-6 in FIG. 5. FIG. 7 is a right side view of FIG. 4. FIG. 8 is a cross-sectional view of a main part of a switching device of the present invention. Fig. 9 is a view of a movable contact of the present invention. FIG. 10 is a schematic diagram illustrating the operation of the contact portion of the present invention. FIG. 11 is a schematic diagram illustrating the operation of the contact portion of the present invention. FIG. 12 is a cross-sectional view illustrating a main part of a conventional switching device. FIG. 13 is a cross-sectional view illustrating a main part of a conventional switching device. Explanation of the representative symbols of the drawing] 1 bottom wall la partition wall lb guide 1 c spring support Id notch groove If press-in hole 84792 19 1223822 2 first fixed terminal 3 second fixed terminal 2a contact point 2b terminal 2c fixed connection Point part 3a Contact part 3b Terminal part 4 Leaf spring 4a Support hole 4b Base 4c Arm part 4d Sliding part 5 First spring 6 Sliding member 6a Supporting wall 6b Operating part 6c Press-in hole 6d End face 6e End face 6f Guide 7 1 contact support 7a wall member 7b first support protrusion 7c second support protrusion 84792 -20- 1223822 7d stopper 7e spring support hole 8 second contact support 8a spring support 8b guide groove 8c joint 8d contact Point support portion 8e Spring fixing portion 8f Spring fixing portion 9 Spring accommodating portion 9a 1st sliding surface 9b 2nd sliding surface 9c Step hazel portion 10th movable contact 10a base 10b fulcrum portion 10c spring receiving portion 10d movable contact portion 10e One side lOf abutment surface 11 Second coil spring 12 Second movable contact 12a Winding portion 12 b Arm portion 84792 -21 1223822 13 Cover member 13a Outer peripheral wall 13b Top wall 13c Groove 13d Riveting portion 13e Convenience 14 Receiving portion 15 Rubber member 15a Outer peripheral wall 15b Flange 16 Drive rod 16a Operating portion 16b Press-in portion 17 Secret piece 18 First receiving portion 19 Second receiving portion 21 Housing 22 Fixed terminal 22a Fixed contact part 23 Central terminal 27 Support plate 28 Movable contact 29 Movable contact part 30 Leaf spring 84792 -22- 1223822 3 0a Protrusion 3 1 Slide member -23-84792