200407923 玖、發明說明： 【發明所屬之技術領域】 本發明關於-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, «又置於該设體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2ι 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 4上形成可與固疋端子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 上下方向驅動的板簧30;與該板簧3〇的突起3〇a抵接的滑動 構件31。 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的可動接點部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丨a向箭頭 A方向按壓操作時，突起3〇a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 200407923 路成爲導通狀態。 此外’如果解除施加在操作部3Iai的壓力，則藉由恢復 科32的彈性力使滑㈣件3丨时到圖丨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，存在了按壓操作部仏的推力變大 '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，提供一糧操作性佳的 開關裝置纟即使因開關回路導通時發生的電派將彼此的接 點^熔接吩’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1解決方案，本發明的開關裝 置’其特徵爲’具有：纟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 方犬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 A置此夠與上述可動接點抵接的固定端子，在按壓操作上述 /月動構件時，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 200407923 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第1支持部、及能_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， 上述固定端子具有能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 的表面上设置的抵接面鼓起形成爲圓故狀。 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側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0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，圖丨〇、圖丨丨爲說明本發明的接點部 84792 200407923 動作的概略圖。 本發明的開關裝置如圖2所示，在最下部設置有底壁1，該 底壁1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1的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la。此 外，在分隔壁1 a的前後方向的各端部上，彼此相對地形成由 匸字狀的槽構成的導向部1 b，由該導向部1 b對後述滑動構件 6可滑動地導向。 此外，在分隔壁1 a的中央部附近的圖示左側中，以比分隔 壁la低的高度直立設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1心 另外，在底壁1上將金屬板彎曲而形成的第〖、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14的構成内底 面的底壁1上面露出的接點部2a、3a，以及從該接點以、“ 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！上的壓入孔lf， 端子部2b、3b的前端部從底壁1的内面向外部突出。 此外’在第1固疋端子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2c。 另外，在底壁1的棒狀彈簧支持部“上，能夠安裝板簧4與 第1螺旋彈簧5。上述板簧4如圖2所示，由在中央部上形成了 84792 200407923 可貫通彈簧支持部lc的憜圓形狀的支持孔4a的基部仆，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，在該臂部4c的前端上形成相互對置並向内側圓弧狀突出 的滑動部4d。 並且，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牦由橢圓狀的彈簧支持 部lc所貫通時，可定位並安裝於底壁丨上面的特定位置上。 此外，在從安裝於底壁！上面的板簧4的支持孔钧向上方突 出的彈簧支持部卜上，可安裝包含壓縮螺旋彈簧的第1彈簧 5 0 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上石著圖示的上下方向，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4的前 視圖所示，在大致中央部形成特定厚度的支持壁仏，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上形成有可壓入後述驅動棒16的壓入孔 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側 的一端面6d和下方一側的另一端面化，分別突出形成板狀的 導向部6f，在底壁1的導向部ib上可自由滑動地導引該導向 部6fo 另外，在圖4所示的支持壁6a的左側，形成可支持後述第t 84792 200407923 可Ml㈣第i接點支持部7。該第！接點支持部7形成有從支 持壁6a的上部=圖示的左側呈屋頂狀延伸的壁構件〜，内部 成中空狀。而第1接點去拉立β产 *掩點支持部7在形成導向部6f的支持壁以的 各端面6d、6e上，形成可支持後述第π動接點卿支點部 10b的作爲第1支持部的一對第i、第2支持突起外，乃。200407923 2. 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 parts: a housing 21 containing an insulating material, «they are placed on the inner bottom surface of the body 21, and the fixed terminals 22 with the fixed contact portions 22a fixed thereon; and the fixed terminals 22 Adjacent to the central terminal 23 provided on the bottom surface of the housing 2m; the central terminal 23 is movably supported and a movable contact portion 29 of a movable contact portion 29 capable of abutting and separating with the fixed terminal 22 is formed on one end 4 28; a support plate 27 that is connected and supported by the movable contact 28 and the central terminal 23 and supports the movable contact 28; is flexibly connected and supported between the movable contact 28 and the central terminal 23 'and bends by itself A leaf spring 30 that drives the movable contact 28 in the up and down direction, and a sliding member 31 that abuts the projection 30a of the leaf spring 30. Furthermore, 'the operation portion 3 丨 a of 3 丨 is constructed by pressing and sliding, and the movable contact portion 29 of the movable contact 28 can be displaced toward or away from the fixed terminal 22 through the plate yellow 30. . When such a conventional switch device presses the operation part 3 丨 a of the sliding member 3 丨 in the direction of arrow A, the projection 30a is pressed by the sliding member 31, the leaf spring 30 is lowered downward, and the movable contact 28 It also descends downward. Thereby, the movable contact part 29 of one end part comes into contact with the fixed contact part 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 84792 200407923 and becomes conductive. In addition, if the pressure applied to the operation section 3Iai is released, the elastic force of the recovery section 32 causes the slider 3 to reach the initial state shown in FIG. 2 and the movable contact 28 also returns to the initial state. Then, 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, It is necessary to increase the spring pressure of the recovery spring 32, so that there is a problem that the pushing force of the pressing operation portion 变 increases, and the operability is reduced. [Summary of the Invention] The object of the present invention is to solve the above problems and provide a switchgear with good operability. Even if the contacts of each other are fused by the electric power generated when the switch circuit is turned on, these weldings can be easily peeled off. To prevent the occurrence of poor contact. As a first solution to the above-mentioned technical problem, the switch device of the present invention is characterized in that it includes a cover member having a hollow housing portion inside the housing, and can be housed in the housing portion by pressing operation and outward from the cover member. The sliding member of the operation part out of the square dog; the sliding member supports a movable contact at a switch support part located in the receiving part, and the movable contact forms a fulcrum part on one side and a movable contact part on the other side. On the inner bottom surface of the accommodating part, a fixed terminal capable of contacting the movable contact is disposed on the inner bottom surface. When the / monthly moving member is pressed and operated, the movable contact contacts the fixed terminal, and the fulcrum portion is used as a fulcrum to make the above Turn on the other side. In addition, as a second solution to the technical problem, 84792 200407923 is characterized in that the sliding member includes a first support portion capable of supporting the fulcrum portion of the movable contact on the switch support portion, and a feature that A second support 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 support portion is from the above The second support department leaves. In addition, as a third solution to the technical problem, the fixed terminal has a fixed contact portion capable of abutting 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 to form a round 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 is shown below with reference to FIGS. 1 to 0. 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.丨 〇, FIG. 丨 丨 is a schematic diagram illustrating the operation of the contact portion 84792 200407923 of the present invention. As shown in FIG. 2, the switchgear of the present invention is provided with a bottom wall 1 at the lowermost portion. The bottom wall 1 is made of an insulating material such as a resin material and has a substantially rectangular shape. Inner bottom surface. A partition wall 1a is provided on the substantially central portion of the bottom wall 1 so as to stand at a predetermined height to partition the receiving portion 14 inside the cover member 12 described later into two. In addition, at the end portions in the front-rear direction of the partition wall 1a, a guide portion 1b composed of a sipe-shaped groove is formed opposite to each other, and the later-described sliding member 6 is slidably guided by the guide portion 1b. Further, on the left side of the drawing near the center of the partition wall 1a, a bar-shaped spring support portion lc formed in an oval shape is provided upright at a lower height than the partition wall la. In addition, a notch groove 1 of a specific size is formed in the central portion of the partition wall 1a. In addition, the second and third fixed terminals 2, 3 formed by bending a metal plate on the bottom wall 1 are respectively pressed in and formed into a pair. One. 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 14 to be described later, and from the contact points, the shape is generally "L" to one side. Terminal portions 2b, 3b that are bent in a shape and extend to the lower side in the figure. The terminal portions 2b, 3b are press-fitted into a press-fit hole lf formed in the bottom wall! The front end portions of the terminal portions 2b, 3b are from the bottom wall 1. In addition, the contact surface portion 2a of the first fixed terminal 2 is connected to the first movable contact 10 composed of a conductor plate, which will be described later, and is secured by riveting or pressing. A fixed contact portion 2c composed of other members is attached. A leaf spring 4 and a first coil spring 5 can be attached to the rod spring support portion "of the bottom wall 1. As shown in FIG. 2, the leaf spring 4 is formed by a base member having a circular support hole 4a formed in the center portion 84792 200407923 and penetrating the spring support portion lc, and both ends of the base portion 4b facing upward are opposed to each other. A pair of curved arm portions 弯曲 are formed, and a sliding portion 4d is formed on the front end of the arm portion 4c so as to face each other and project inwardly in an arc 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 on a specific position on the bottom wall when the oval-shaped support hole 牦 is penetrated by the oval-shaped spring support portion lc. In addition, it is installed from the bottom wall! A first spring 5 including a compression coil spring can be mounted on the spring support portion of the upper support hole of the leaf spring 4 protruding upward. The bottom wall 1 is groove-shaped on both ends of the partition wall. The guide portion 1b slidably guides the sliding member 6 made of an insulating material such as a resin material on the knife partition wall 1a as shown in the figure. The sliding member 6 is described with reference to Figs. As shown in the front view of FIG. 4, a support wall niche of a specific thickness is formed in a substantially central portion, and a rod-shaped operation portion n projecting upward from the upper surface of the support wall 6a is formed at a specific height. An opening portion is formed on the operation portion 6b. The press-in hole 6c ′ of the drive rod 16 described later has a specific hole diameter and depth. The support wall 6 a has an end surface 6 d on the upper side in the up-down direction and another on the lower side in FIG. 3. One end face is protruded to form a plate-like guide portion 6f, and the guide portion 6fo is slidably guided on the guide portion ib of the bottom wall 1. In addition, on the left side of the support wall 6a shown in FIG. T 84792 200407923 described later i contact support portion 7. This first! contact support portion 7 is formed with a wall member extending from the upper part of the support wall 6a = the left side of the figure in the shape of a roof, and the interior is hollow. The first contact is pulled up The β-production * masking point support portion 7 forms a pair of i-th, i-th, first support portions on the end faces 6d, 6e of the support wall forming the guide portion 6f, which can support the π moving contact fulcrum point portion 10b described later. The second support protrudes outside, however.
作爲該第1支持部的第卜第2支持突起7b如圖4所示，係I 有特定尺寸的間隙而形成’該間隙部分可支持後述第i可動 接點10的支點部l〇b。 亚且，第1接點支持部7其與支持部6a相對側的壁構件、的 下方側，形成有作爲第2支持部的鈎狀的止動部以。該止動 部7d從壁構件7a的下方内面向作爲支持部心方向的内側突 出而形成。 另外，在構成第1接點支持部7的壁構件7a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 1 1的彈簧支持孔7e。 並且’如圖4所示’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6a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8a與支持 壁6a之間形成特定尺寸的導向槽8b。 此外’在導向槽8b的上部，形成有與在底壁1的分隔壁ia 上形成的缺口槽1 d結合並可滑動的結合部8c。 另外’在彈簧支持部8a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1 1的捲繞部1 1 a的棒 84792 -10- 200407923 狀接點支持部8d。此外，滑動構件 再仵6如圖3所示，在接點支持 部8d的上下，形成從彈簧支持部 、 处穴出而尺寸各自不同的 一對彈簧固定部8e、8f。 各彈簧固定部8e、8f如圖4所示，a #⑽ u岍不，則端部形成鈎狀，能夠 固定連接後述由扭轉線圈彈簧構成 再战的弟2可動接點1 1的臂部 1 lb 〇 此外，在圖5的仰視圖中所示滑動構件㈣下面側，在支持 壁㈣大致中央部上形成特定孔徑尺寸的彈簧支持叫。該 彈餐支持孔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7 a的頂面附近。 此外，如圖5所示，在形成於支持壁^上的彈菁支持孔^ 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，在上部側以比第！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=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 示的板黃4的臂部4c時，板簧4的各滑動部4d、4d壓接於第i 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的滑動部牝會跨上階梯部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，橾作者可感到卡嗒（click)的感覺。 84792 增407923 ’在滑動構件6的第1接點支持部7上，能夠支持平板 且大致爲長方形的第丨可動接點|〇。該第丨可動接點丨。由金 屬板等導電性構件構成’如圖2所示，具有平坦狀的大致長 :形狀的基部l〇a，從該基部1〇a的長度方向的兩端部向一方 突出的舌片狀支點部1〇b形成爲一對。 而且，各支點部10b、10b可支持在滑動構件6的第1、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1〇a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(：。此外，在基部1〇a上，在 一對支點部l〇b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10b的一側相反的基部10a的另一側 1 〇e可支持於滑動構件6的止動部7d上。 並且，在墓部10的突出形成的一對接點部l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i 〇c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i、第2支持突起7b、7c 之間，與支點部1 〇b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7b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1 〇的可動接點 84792 •12- 200407923 部1 Od側施加向第丨固定接點1側的彈性力，在按壓操作滑動 構件6時，可動接點|〇的可動接點部J〇d成爲能夠與固定接點 2的固定接點部2c抵接。 並且，由第1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1〇d、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藉由第丨可動接點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l〇d即與固定端子2抵接，將支點部1〇b作爲 支點使另一側1 〇 e回轉。 此外，在滑動構件6的第2接點支持部8上支持著包含扭轉 線圈彈I的第2可動接點12。該第2可動接點1 2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，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i2a支持在第2接點支持 邻8的接點支持部8(1上，同時，一方的臂部1固定於一方的 =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。 亚且，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 - 200407923 12下降時’ 2根臂部丨2b、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 1 3。該罩構件1 3周圍由外周壁1 3 a圍繞，同時上部由頂壁1 3 b 覆蓋’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1可嵌合於該下方的開放部 分。 此外’罩構件13在上部的頂部丨3b中央部上形成用於安裝 後述橡膠構件1 5的圓形的槽部13 c，在該槽部13 c的外周以特 定的高度突出形成特定厚度的壁狀的鉚接部13(1。 另外’在圓弧狀的槽部13 c的内側，以特定的孔徑形成滑 動構件6的操作部6b可貫通的通孔丨3e。 此外’在頂部13 b的槽部1 3 c中，如圖2所示，設置有内部 形成中空的圓頂形橡膠構件1 5。該橡膠構件丨5由圓頂狀的外 周壁1 5a及形成於該外周壁！ 5a下部的外周部上的特定厚度 的凸緣15b構成。 亚且，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。As shown in Fig. 4, the second support protrusion 7b serving as the first support portion is formed with a gap of a specific size. The gap portion can support the fulcrum portion 10b of the i-th movable contact 10 described later. Further, the first contact support portion 7 is formed with a hook-shaped stopper portion as a second support portion on the lower side of the wall member on the side opposite to the support portion 6a. The stopper portion 7d is formed so as to protrude from the lower inner surface of the wall member 7a to the inner side serving as the support portion in the center direction. In addition, a spring support hole 7e having a substantially rectangular shape having a specific depth and capable of supporting a second coil spring 11 to be described later is formed on the top surface of the wall member 7a constituting the first contact support portion 7. Further, as shown in FIG. 4, a second contact support portion 8 is formed on the right side of the support wall 6a to support a second movable contact Π described later. The second contact support portion 8 is formed with an approximately L-shaped spring support portion 8a from an upper portion of the support wall 6a on the right side of the drawing, and a guide groove having a specific size is formed between the spring support portion 8a and the support wall 6a. 8b. In addition, a coupling portion 8c is formed on the upper portion of the guide groove 8b so as to be slidable with the notch groove 1 d formed in the partition wall ia of the bottom wall 1. In addition, a bar 84792 -10- 200407923-like contact support portion protrudingly formed on the lower side of the spring support portion 8a to support the winding portion 1 1 of the second movable contact 11 constituted by a torsion coil spring described later 8d. In addition, as shown in FIG. 3, the sliding member 6 is formed on the upper and lower sides of the contact support portion 8d, and a pair of spring fixing portions 8e and 8f each having a different size from the spring support portion are formed. Each spring fixing part 8e, 8f is shown in FIG. 4. If a # ⑽ u 岍 is not formed, the end part is formed into a hook shape, which can be fixedly connected to the second arm 2 which is composed of a torsion coil spring and then fights. The movable contact 1 1 is an arm part 1. lb 〇 In addition, in the bottom view of the sliding member ㈣ shown in the bottom view of FIG. 5, a spring support bar with a specific aperture size is formed in the substantially central portion of the support wall ㈣. As shown in Fig. 6, the depth of the zucchini support hole 6g is formed so as to reach the vicinity of the top surface of the wall member 7a of the first contact support portion 7. In addition, as shown in FIG. 5, a plate spring accommodating portion 9 capable of accommodating the arm flap of the plate spring 4 is formed at a predetermined depth near the upper and lower vicinity of the elastic support hole ^ formed in the support wall ^. As shown in FIG. 7, the leaf spring accommodating portion 9 forms a first sliding surface 9 a opposite to each other in a specific width dimension on the lower side, and is larger than the first on the upper side! The size of the sliding surface% width is the opposite second sliding surface 9b, and the stepped portion 9C connecting the first sliding surface 9a = the second sliding surface 9b is inclined. In addition, as shown in FIG. 7, when the arm portion 4 c of the plate yellow 4 shown by the two-dot imaginary line is housed in the plate spring accommodation portion 9, the sliding portions 4 d and 4 d of the plate spring 4 are crimped to the i-th sliding surface 9 a. on. In this state, if the sliding member 6 is pressed downward to be lowered, the sliding portion 牝 of the leaf spring 4 crosses the upper step portion 9c, and the leaf spring 4 is elastically deformed. At this time, the operation force of the pressing operation sliding member 6 changes, and the author can feel a click feeling by the change of the operation force. 84792 407923 'The first contact support portion 7 of the sliding member 6 can support a flat and substantially rectangular first movable contact | 0. The 丨 movable contact 丨. It is composed of a conductive member such as a metal plate. As shown in FIG. 2, it has a flat, substantially long, shaped base portion 10a, and a tongue-like fulcrum protruding from one end portion in the longitudinal direction of the base portion 10a. The portions 10b are formed as a pair. Each of the fulcrum portions 10 b and 10 b can be supported in a gap portion between the first and second support protrusions 7 b and 7 c of the sliding member 6. In addition, the first movable contact 10 is formed in a circular shape at a substantially central portion of the base portion 10a, and the spring receiving portion 10 (:) is formed at a specific depth. In addition, on the base portion 10a, a pair of fulcrum portions l In the vicinity of 〇b, a circular movable contact portion 10d protrudes to the lower side in the figure. In addition, the other side 10e of the base portion 10a opposite to the side forming the fulcrum portion 10b can be supported by the sliding member 6. The stopper portion 7d. Further, the abutment surface 10f of the pair of contact portion 10d-based surfaces formed on the protrusion of the tomb portion 10 is bulged to form an arc shape. In addition, a compression coil spring shown in FIG. 2 is formed. The second coil spring 丨 j is formed on the spring receiving portion i oc of the first movable contact 10, and the upper end portion of the second coil spring 11 is supported by the top of the wall member 7a formed on the sliding member 6. In the spring support hole 7e on the surface, a downward elastic force is applied to the first movable point 10. The first movable contact 10, which is elastically applied by the second coil spring 11, is supported at the fulcrum portion 10b. Supported between the i-th and second support protrusions 7b and 7c as the first support portion, and on the other side 10e branch opposite to the fulcrum portion 10b. It is held on the hook-shaped stopper portion 7b as the second support portion, and is thus mounted on the sliding member 6. That is, the movable contact point 11 of the movable contact point 10 by the second coil spring 11 is always held 84792 • 12 -200407923 A spring force is applied to the 1st fixed contact 1 side on the Od side of the part 1, and when the sliding member 6 is pressed, the movable contact part JO of the movable contact | 〇 becomes a fixed contact with the fixed contact 2. The point portion 2c abuts. The first movable contact point 10 and a pair of first fixed terminals 2 constitute a first switch portion as a power switch. When the sliding member 6 is pressed and lowered, the first movable contact point 10 The pair of movable contact portions 10d and 10d are in contact with each of the fixed contact portions 2c and 2c of the first fixed terminal 2. As a result, the pair of first fixed terminals 2 and 2 pass through the first movable contact 10 is turned on, and the first switch portion is turned on. That is, the switch device of the present invention is provided with a fixed terminal 2 on the bottom surface of the accommodating portion 14 that can be brought into contact with the movable contact 10, and when the sliding member 6 is pressed, the movable connection is made. The movable contact portion 10d of the point 10 is in contact with the fixed terminal 2, and the fulcrum portion 10b is used as the fulcrum to make the other side 1 e. The second contact support portion 8 of the sliding member 6 supports a second movable contact 12 including a torsion coil spring I. As shown in FIG. 2, the second movable contact 12 includes a piano A winding portion of a multi-turn winding of a wire spring made of a wire or the like is formed from the winding portion 12a. Two arm portions 12b and 12b having a specific opening angle α and extending outward in a straight line are formed. The point 12 is at the contact support portion 8 (1 that supports the winding portion i2a at the second contact support adjacent 8), and at the same time, one arm portion 1 is fixed to one = spring fixing portion 8e and the other arm portion 12b is fixedly connected to the other spring fixing part 8f. In addition, the second switch unit as a detection switch is constituted by the second movable contact 12 and a pair of second fixed terminals 3, and when the sliding member 6 is pressed and operated to lower the second movable contact 84792 -13-200407923 12 ' The two arm portions 2b, 12b are in contact with the pair of second fixed terminals 3. As a result, the pair of second fixed terminals 3 and 3 is turned on through the second movable contact 12, and the second switch is turned on. In addition, a cover member 1 3 is provided above the bottom wall 1 so as to cover the top of the bottom wall 1. The cover member 13 is surrounded by an outer peripheral wall 13a while the upper portion is covered by a top wall 13b. A hollow-shaped 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 opened and the bottom The wall 1 can be fitted in the lower open part. In addition, the cover member 13 has a circular groove portion 13 c for mounting a rubber member 15 to be described later on a central portion of the top portion 3 b of the upper portion, and a wall having a specific height is formed to protrude at a specific height on an outer periphery of the groove portion 13 c. Shaped riveting portion 13 (1. In addition, inside the arc-shaped groove portion 13 c, a through hole through which the operating portion 6 b of the sliding member 6 penetrates is formed with a specific hole. 3e. In addition, the groove at the top portion 13 b As shown in FIG. 2, the portion 1 3 c is provided with a hollow dome-shaped rubber member 15 formed inside. The rubber member 5 is formed by a dome-shaped outer peripheral wall 15 a and a portion formed on the outer peripheral wall! 5 a The outer peripheral portion is formed with a flange 15b having a specific thickness. A dome-shaped outer peripheral wall 15a is formed with a press-fitting hole 15c through which a driving rod 16 which will be described later is press-fitted. The rubber member 15 is formed on the flange. In a state where 15b is located in the groove portion 13c, the riveting portion 1 3d is inserted into the inside to be riveted and installed, and is integrated with the cover member 丨 3.
此外，驅動棒16包含圓盤狀的操作部16a，及可壓入橡膠 構件丨5的壓入孔丨5c與滑動構件6的壓入孔&中的棒狀壓I 84792 200407923 部19b構成。 如此構成的本發明的開關裝置，其組裝首先在底壁丨上壓 第1第2固定端子2、3各自的端子^3b、4b。之後，在底 壁丨的彈*支持部lc上插入安裝板簧4，同時在板箐4的基部 4b上插入安裝第1螺旋彈簧5。 此外，滑動構件6在第1接支持部7上安裝並支持第1可動接 點10同蚪，在第丨可動接點丨〇的彈簧接受部1 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10以位於第}、第2支持突起乃、7d 之間的支點部l〇b爲支點，另一側1〇e支持於止動部”上，從 而將第1可動接點1〇安裝於止動構件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10、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j 的導向部1b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1臨時固定於導向構件13上。 如此，則滑動構件6的操作部6 b從罩構件13的通孔13e向上 方犬出’位於橡膠構件15的圓頂狀的外壁ba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15c和滑動構件6的壓入孔6c，將罩構件13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 200407923 此外’如圖8所示’藉由將底壁丨的外周部和罩構件丨3的外 周壁Ha以及第丨、第2固定端子2、3與底壁的壓入孔丨f各自 的間隙用環氧樹脂等黏接劑構成的密封件丨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14。 如此組裝的本發明的開關裝置中’内部的收容部丨4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18，在圖中右側形成有第2收容部19。 並且，在第1收谷部丨8形成支持第丨可動接點丨〇的作爲電源 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i、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 箬 ㈣斜狀階梯部9C滑動，增大施加於驅動棒16上的按： 力，進一步將滑動構件6向下方按壓，滑動部扑位於第2滑動 此k 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。 在感見到14種“卡嗒”感的同時，第1可動接點1 0的可動 接點邛l〇d與第1固定端子2的固定接點部以、以抵接，一對 第1 口疋端子2、2藉由第丨可動接點1〇導通，第丨開關部成爲 導通狀態。 對4第1開關部的導通動作詳細說明，首先，按壓操作滑 84792 -16- 200407923 動構件6時，如圖10所示，距離形成於第i可動接點ι〇上的支 點部10b較遠一側的可動接點部丨⑸的抵接面|〇f最初與固定 接點部2c抵接。 此後，如圖11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10回轉，如圖u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1 〇的一點假想線所 示的B點向圖1 1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 〇炼接， 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，故能夠容易地剝下熔接。 此外，與此同時，第2可動接點12的一對臂部12b、12b與 第2固定端子3的接點部3a、3 a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，即使發生電弧，由於第i 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1、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 200407923 的可動接點部1 0d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10d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1 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$的固定接 點部2 c的表面上設置的抵接面鼓起爲圓孤狀即可。 【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 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 生的電弧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 回轉篁’能夠將由於電狐的發生而炼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 疋接點4的表面设置的抵接面係鼓起形成爲圓狐狀，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- 200407923 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 0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13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 200407923 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 7 a 壁構件 7b 第1支持突起 7c 第2支持突起 -20- 84792 200407923 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i滑動面 9b 第2滑動面 9c 階擁部 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 12b 臂部 -21 84792 200407923 13 罩構件 13a 外肩壁 13b 頂壁 13c 槽部 13d 鉚接部 13e 通礼 14 收容部 15 橡#構件 1 5a 外周壁 15b 凸緣 16 驅刼棒 16a 操作部 16b 壓入部 17 密封件 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 • 22 - 84792 200407923 30a 突起 3 1 滑動構件 84792 23-In addition, the driving rod 16 includes a disc-shaped operation portion 16a, a press-fitting hole 5c that can be press-fitted into the rubber member 5 and a rod-shaped pressure I 84792 200407923 19b in the press-fitting hole & of the sliding member 6. The switch device of the present invention thus constructed is assembled by first pressing the respective terminals ^ 3b, 4b of the first and second fixed terminals 2, 3 on the bottom wall 丨. Thereafter, the leaf spring 4 is inserted into the spring support portion lc of the bottom wall, and the first coil spring 5 is inserted into the base portion 4b of the plate 44. In addition, the sliding member 6 is mounted on the first contact supporting portion 7 and supports the first movable contact 10, and the first receiving contact 1 and the spring supporting hole 7e of the sliding member 6 are attached to the first receiving contact 7 2 Both ends of the coil spring. In this way, the first movable contact 10 uses the fulcrum portion 10b located between the second and second support protrusions 7d as the fulcrum, and the other side 10e is supported on the stopper portion. The movable contact 10 is attached to the stopper member 6. In addition, the 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 first contact 1. The sliding members 6 of the second movable contacts 10 and 12 are fitted with the guide portion 6f protruding from both end portions 6d and 6e of the support wall 6a into the guide portion 1b of the bottom wall j from above. Covering the cover member 13 'with the rubber member 15 riveted thereon, the bottom wall 1 is pressed into the open portion below the cover member 13 to temporarily fix the bottom wall 1 to the guide member 13. In this way, the operation of the sliding member 6 The portion 6 b is located upward from the through hole 13 e of the cover member 13 and is located inside the dome-shaped outer wall ba of the rubber member 15. Thereafter, the press-in portion 16 b of the driving rod 16 is pressed into the press-in hole of the rubber member 15. 15c and the press-in hole 6c of the sliding member 6 seal the upper part of the accommodation portion 14 inside the cover member 13. Therefore, 'water and the like can be prevented' The upper part of the cover member 1 3 penetrates into the receiving part 14 84792 200407923 In addition, as shown in FIG. 8, the outer peripheral portion of the bottom wall 丨 and the outer peripheral wall Ha of the cover member 3 and the second and second fixed terminals 2 are shown in FIG. 8. , 3, and the press-in hole of the bottom wall 丨 f The respective gaps are sealed with a seal made of an adhesive such as epoxy resin 丨 7, which can seal the lower side of the internal storage portion 14 to prevent water and the like from the bottom wall 1 side Intruded into the accommodating portion 14. In the switch device of the present invention thus assembled, the 'internal accommodating portion 丨 4' is divided into two by the partition wall la of the bottom wall 1 as shown in FIG. 18, a second storage section 19 is formed on the right side in the figure. A first switch section as a power switch supporting a movable contact 丨 0 is formed in the first trough section 8 and is formed in the second storage section 19 The second switch portion supporting the second movable contact 12 serving as a detection switch is supported. The operation of the switch device of the present invention thus constituted is shown in Fig. 8 where the slide member 6 is positioned above and the i and second switch portions are turned off. In the initial state, the operator pushes the driving rod 16 downward to lower the sliding member 6 The sliding portion C of the leaf spring 4 located on the first sliding surface% of the sliding member 6 slides at an inclined step 9C to increase the pressing force applied to the driving rod 16 to further push the sliding member 6 downward, The sliding part is located on the second slide. The operating force of the pressing operation sliding member 6 decreases sharply, and the operator who presses the operating sliding member 6 can feel a click. At the same time that 14 kinds of "clicks" are felt, The movable contact 邛 10d of the first movable contact 10 and the fixed contact portion of the first fixed terminal 2 are in contact with each other, and a pair of the first port 疋 terminals 2 and 2 are connected via the first movable contact 10 is turned on, and the first switching section is turned on. A detailed description of the conduction action of the 4th first switch section. First, when the operating member 84 is pressed by the operation slide 84792 -16- 200407923, as shown in FIG. 10, it is far from the fulcrum portion 10b formed on the i-th movable contact ι〇. The contact surface | 0f of the movable contact portion 丨 ⑸ on one side initially abuts on the fixed contact portion 2c. Thereafter, as shown in FIG. 11, when the sliding member 6 is further pressed to lower it, the movable contact 10 is rotated with the fulcrum portion 1 Ob as a fulcrum. As the movable contact point 10 rotates, as shown in Fig. U, the abutment position of the abutment surface abutting on each other moves to a position closer to the fulcrum portion 10b. That is, the abutting position of the abutting surfaces of the 'abutting' is moved from a point B shown by a one-point imaginary line in Fig. 10 to a point C shown in Fig. 11. By moving the contact position of the contact surface from point B to point C, at the first point of contact, 'even if an arc occurs, the fixed terminal 2 and the movable contact 10 are welded together. With the pressing operation, the contact position is moved from the point b to the point c, so the welding can be easily peeled off. In addition, at the same time, the pair of arm portions 12b, 12b of the second movable contact point 12 are in contact with the contact point portions 3a, 3a of the second fixed terminal 3, and the pair of second fixed terminals 3, 3 pass through the second The movable contact 12 is turned on, and the second switch section is turned on. Even when an arc occurs when the above-mentioned first switch section is turned on, since the i-th housing section 18 and the second housing section 19 are shielded by the partition wall la, the generated arc does not splash into the second housing section 19. Therefore, contact failure and the like do not occur in the second switch section. When the pressing of the driving rod 16 is released when the first and second switch sections are turned on, the sliding member 6 is pushed upward by the elastic force of the first coil spring 5 and automatically returns to the initial state shown in FIG. 8. The first and second switch sections are in the off state. In the above-described embodiment of the switching device of the present invention, the case where the contact portion 1 Of of the movable contact portion 10d of the movable contact point i 〇84792 200407923 is bulged in an arc shape has been described. However, it may be The contact surface of the fixed contact portion 2c of the first fixed terminal 2 is bulged into an arc shape. Alternatively, the contact surfaces of both the fixed contact portion 2c and the movable contact portion 10d may be formed in a circular arc shape. That is, the switch device of the present invention only needs to make the contact surface i0f provided on the surface of the movable contact portion 10d of the movable contact 10 and / or the fixed contact portion 2c of the fixed terminal $. The abutment surface provided on the surface may be swollen in a circular shape. [Effects of the Invention] As described above, after the switch device of the present invention presses and operates the sliding member, the movable contact portion of the movable contact is in contact with the fixed terminal, and the other side is rotated with the fulcrum portion as the fulcrum. By turning the movable contact, the contact position between the movable contact and the fixed terminal can be moved. Therefore, even if the movable contact is welded to the fixed terminal due to an arc occurring 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 rotation of the movable contact can be increased. The movable contacts and fixed terminals are reliably peeled off. In addition, since the abutment surface provided on the surface of the movable contact portion and / or the abutment surface provided on the surface of the fixed contact 4 is bulged and formed into a round fox shape, the movable contact is rotated to abut each other. The contact position of the contact 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 pressed and operated, the contact surface between the movable contact on the far side of the fulcrum portion 84792 -18- 200407923 formed on the movable contact point and the fixed contact point initially abut "after" by 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. 13 is a cross-sectional view illustrating a main part of a conventional switch device. [Illustration of representative symbols in the figure] 1 bottom wall la partition wall lb guide 1 c spring support Id notch slot If press-in hole 84792 19 200407923 2 first fixed terminal 3 second fixed terminal 2a contact portion 2b terminal portion 2c fixed Contact part 3a Contact part 3b Terminal part 4 Leaf spring 4a Support hole 4b Base part 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 portion 7 1st contact support 7 a Wall member 7b 1st support projection 7c 2nd support projection -20- 84792 200407923 7d Stopper 7e Spring support hole 8 2nd contact support 8a Spring support 8b Guide groove 8c Joint 8d contact support portion 8e spring fixing portion 8f spring fixing portion 9 spring receiving portion 9a i-th sliding surface 9b second sliding surface 9c stepped portion 10 i-th movable contact 10a base 10b fulcrum portion 10c spring receiving portion 10d movable contact Part 10e side lOf abutment surface 11 second coil spring 12 second movable contact 12a winding part 12b arm part 21 84792 200407923 13 cover member 13a outer shoulder wall 13b top wall 13c Groove part 13d Riveting part 13e Convenience 14 Receiving part 15 Rubber #member 1 5a Outer peripheral wall 15b Flange 16 Extruding rod 16a Operating part 16b Press-in part 17 Seal 18 First receiving part 19 Second receiving part 21 Housing 22 Fixed terminal 22a Fixed contact portion 23 Central terminal 27 Support plate 28 Movable contact 29 Movable contact portion 30 Leaf spring • 22-84792 200407923 30a Protrusion 3 1 Slide member 84792 23-