1314747 九、發明說明： 【發明所屬之技術領域】 、本發明係有關微型開關，尤指一種適用於光碟機等電腦 或電子週邊機器之微小型按壓式開關之構造改良。 【先前技術】 以往習知之小型按壓式開關，例如我國專利申請第 84208192说及82213849號所揭示者，均由底座、罩咬、讲 ^底座的固定端子、活動鋪>；、彈簧及按轉構成' 這= 構造不僅構成部件多，構造獅，且目使㈣簧穿孔釣掛在 相關部件上:定錄難，更職配上之·，且容易脫落， 因而成本較高且產率低，同時也難以更小型化。 為改良上述缺點，在例如我國專利申請第811〇58〇3號及 85108495號巾，兩者容有構造、形狀上之不同，大體上則揭 ㈣單獨之復元彈簧的按壓_，主要係在板片狀之 $接觸片上-體形成具彈簧作用的雅部，藉以取代前述 ，獨之復το彈簧。但為了使活動接觸片定位安裝，利用 巧觸片之㈣彎曲舰合於形成在按壓構件或操作構件之U 斗1凹°卩内，同時，此種開關之按壓構件之按壓部传盘 活動接觸片之保持定位部係構成偏位，即不在同一轴線^。、 並具有-對按紐絲合支持活祕觸片之操作構件及 具有二叉狀接觸腳部之活動接觸片而構造較複雜。 hi厭專利申請第9311_號則揭示類似第__1314747 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a microswitch, and more particularly to a structural improvement of a micro-push-type switch suitable for a computer such as an optical disk drive or an electronic peripheral device. [Prior Art] Conventional small-sized push-type switches, such as those disclosed in Japanese Patent Application No. 84208192 and No. 82213849, are all fixed by the base, the cover, the fixed terminal of the base, the movable shop, the spring, and the push. The composition 'this = structure not only constitutes a large number of components, the construction of lions, and the purpose of (4) spring perforated fishing hanging on the relevant components: difficult to record, more job, and easy to fall off, so the cost is higher and the yield is low, At the same time, it is also difficult to be more compact. In order to improve the above-mentioned shortcomings, for example, in the patent applications Nos. 811〇58〇3 and 85108495 of the Chinese patent application, the two have different structures and shapes, and in general, the pressing of the separate recovery springs (4) is mainly on the board. The sheet-shaped $contact-upper body forms a spring-loaded ya part, in order to replace the aforementioned, the unique το spring. However, in order to position and mount the movable contact piece, the (4) curved ship is combined with the U-shaped bucket 1 formed in the pressing member or the operating member, and the pressing portion of the pressing member of the switch is in contact with the movable portion. The positioning portion of the sheet is configured to be offset, that is, not on the same axis. And it has a complicated structure for the operation member of the button supporting the live contact and the movable contact piece having the bifurcated contact foot. Hi tired of patent application No. 9311_ reveals similar __
其可動端子（活動接觸片）係藉其兩側之 此说於底座之兩内側壁所設卡止凹部内而定位，按壓構 曲J 無如第81105803號及85108495號二案之U 之按=利:請第92216947號所揭示之觸發開關提供薄型 位3:、募H接觸片之上端一嫩有一具有定位孔（限 )之折邊，按壓構件之内壁設有對應於此折邊之定位銷 5 1314747 (限位銷），而接觸片係藉彎曲部穿過按壓構件之 樞轴之間之彎弧型空間部及折邊之定位孔彼 ，與 確實之定位。 疋位銷而保持 又，我國專利申請第93111554號及第942〇1 類似於前述構成之按壓式_，但使用特製之 代上述各案之金屬板製活動接觸片。 ’、 本發明旨在解決上述習知按壓開關所存在之 一，構造簡單、裝_易，可動接觸片之定位確實7^且關、 之操作及接觸動作穩定可靠之按壓開關。 碭關 【發明内容】 本發明之按壓開關屬於一種體形小，動作確 器之係由··内側底面設有固定導電f之盒 二 卜殼内部而具有按壓柄突出外殼之頂部以 部與触底部之間而具有二接觸腳片向前 之可動彈性接觸片，及一賴外殼之頂面開 ^ 一供按壓構件之按壓柄外露之蓋板所構成；，、上面5又有 接觸ί^ίΓ該按壓構件之按壓柄底面具有向下突出之 突起，而在此突起之後方位於樞軸下方部位設有 :卜仞i’延ΐ之用以定位接觸片之非常觸接觸腳片之l 减，|而彈百接觸片係、具有平板部及分別自平板部之後 乃非千板邛上所6又疋位孔嵌入按壓構件之定位突起 如是2 卡止於L型定位部而定位於按壓構件。藉 轴為，向下旋轉’從而使非常觸接觸片圓滑接觸 於导冤片，形成閉路。 【實施方式] 錄依照附圖就本發明之具體構造實例詳細說明如下： 6 1314747 首先，請參照第一圖至第三圖，本發明之按壓開關主要 係由底部埋設有二電氣接觸用固定導電片1〇a、1〇b的外殼i， 容設於外殼1内的按壓操作用按壓構件2，彈性裝設在按壓 構件2與外殼1之間的可動接觸片3及封閉外殼丨之開口之 蓋板4所構成。 办外殼1為兩外侧中央凹部11各具有一呈對稱之楔形卡止 突起12，且兩内側壁之後端部具有一對支持樞軸用u型槽13 之絕緣盒體，其底壁内面設有二縱向平行延伸並列之電氣接 觸用固定導片l〇a、10b，各導電片l〇a、10b則各具有至少 魯 個端腳l〇a’、l〇b’自底壁或側壁向外伸出以供外接導線之 用。 按壓構件2如弟一及四圖所示，係由一呈凹字型之基板 ϊ，突設在基板21之下面位於按壓柄22下方之接觸片i位 大起23 ’犬没在此基板21之頂面中央之略呈三角形之按壓 ，22 ’設在基板21之後端兩侧而與基板21之長軸呈垂直相 父之樞軸24，設在基板2後端位於樞軸24間之上端具有彎 弧部之連接部25，及設在此連接部25之中央下面而向下再 向一側延伸之L形定位部26所構成。樞軸24之兩端突出於 基板2丨之兩侧，以便嵌入外殼1之一對U型凹槽13内。上 ‘ 述基板21、按壓柄22、定位突起23、樞軸24、連接部25及 • 定位部26之六部份係以塑膠一體成型而構成按壓構件2。定 位突起23係用以定位可動接觸片3，L型定位部26則用來 支持可動接觸片3之一支腳片，容後詳述。如此構成之按壓 構件2係藉樞軸24之兩端可轉動自如地嵌入外殼丨之兩侧壁 之凹槽13内並使按壓柄22自蓋板4之透孔41突出之狀態容 設於外殼1與蓋板4所圍成之空間内部（參照第二及三圖）。 可動接觸片3乃如第―圖及第五贿示，係由一側視略 呈U型之導電性金屬彈簧片成型而成。此接觸片3具有一略 中央设有一定位孔31之平板部32，一設在此平板部32之後 7 1314747 曲呈弧狀之_沿，-自彎 接觸腳片34a，一自此j部延觸端形成彎弧形之常觸 接觸端形麟_前方彎曲延伸且 過J接部25且非常觸接觸腳片 安裝定位於按壓構件2之下面，面而 W.；L4 22穿诵央略則方设有一可供按屡構件2之按壓部 22穿通至外相供按壓操作之透孔& 下垂直折彎域有可嵌人外殼丨之 4,2 ^43 5 ^ 12之狀態下’折片部43恰好容納 外w丨辦齊梅。可動^^ 白ίίί ί與—腳片34a、施之張開度係形成未虹裝前（即 S ^裝後之拘束狀態較大，因此，組裝完成後，接 觸片3乃畜有復原張開之能量。 其次，就構成如上之各構件之組裝方法說明如下： 廿斑將可動接觸片3自按壓構件2之前端凹口部插入， 並精平板部32之定位孔31套人按壓構件 及使非常觸接觸腳片34b之下面卡止於L型定上 面，而使雜則3組餘按壓構件2上縣-組件。接著 ，按壓構件2以按壓柄22向上令樞轴上端:正;； 山ίϋ壁所設一對U形槽13之開口裝入其内，樞軸24即 ，同時接觸片3之常觸接觸腳片34a之接觸端即 ^ |導電片l〇a’但位置較高之非常觸接觸腳片34b之接 3自!不接觸到另一導電片10b。由於二腳片34a、34b之自 之張開度設定為較組裝完成後之張開度大，所以此 時之樞軸24只是在凹槽13之開口部，尚未進人半圓形槽底 8 1314747 ί:側以透孔41對準按壓構件2之按壓柄22 突折片。M3之卡止孔42對準外殼1之兩侧壁之卡合 1S> P從上方朝下略施壓力蓋於外殼1之開口時，卡合突起 則、由横形面之引導而可順勢嵌入卡止孔42内，而折片部43 按壓柄22即自透孔41突出，同時框軸24 定位。於是蓋板4即封閉外殼1之開口， 34b則盥導雷m接於導電片1〇a上面，而非常觸接觸片 下時方r鱼ΐ片t相距一操作距離’只有於按壓柄22被壓 卜時^與另-導電片1Gb接觸而完成閉路電路。 且可予易不?==件;;f造而 ΐ高扣合=丄===; 接網Η秘工可降低，又因各接觸片至樞軸之力矩臂較長以及 對導電片更大之接觸壓力，遂可獲得良好 接觸堪稱-新賴且具改良功效之按壓開關。 遠發明較佳之具體構造實施例加以說明，在| 本構造與精神下，精於本技術領域之人士 J尚、 下列申，諸此變形與修飾當視為涵蓋在本案 【圖式簡單說明】 發__關-具體實施例之立體分解圖； ==圖為本發明按壓開關之局部縱剖剖視圖； ί二圖為本發明卸下外殼後之橫剖剖視圖,· 面各圖⑷对)為本發明按壓構件之正面、上面及右側 第五圖(Α)〜(Q為接則之正面、上面及右側面各視圖。 9 1314.747 【主要元件符號說明】 1 外殼 10a、10b 固定導片 10a，、10b， 端部 11 凹部 12 卡止突起 13 U型槽（凹槽) 14 定位缺口 15 突起 2 按壓構件 21 基板 22 按壓柄 23 定位突起 24 樞軸 25 連接部 26 L型定位部 3 可動接觸片 31 定位孔 32 平板部 33 彎曲部 34a 常觸接觸腳片 34b 非常觸接觸腳片 4 蓋板 41 透孔 42 卡止孔 43 折片部The movable terminal (movable contact piece) is positioned by the two sides of the locking recesses provided on the inner side walls of the base, and the pressing structure J is as in the case of No. 81105803 and 85108495. Li: Please use the trigger switch disclosed in No. 92216947 to provide the thin position 3: the upper end of the H contact piece has a folded edge with a positioning hole (limited), and the inner wall of the pressing member is provided with a positioning pin corresponding to the folded edge 5 1314747 (limit pin), and the contact piece is positioned by the curved portion passing through the curved space portion between the pivots of the pressing member and the positioning hole of the flange. Further, the Chinese Patent Application Nos. 93111554 and 942〇1 are similar to the above-described press type _, but a special metal sheet movable contact piece of the above-mentioned various cases is used. The present invention is directed to solving the above-mentioned conventional push switch, which has a simple structure, is easy to install, and is capable of positioning the movable contact piece, and the operation and the contact action are stable and reliable.砀关[Summary of the Invention] The push switch of the present invention belongs to a small body shape, and the action device is provided with a fixed conductive f-box inside the inner bottom surface and has a pressing handle protruding from the top of the outer casing to the bottom and the bottom. There is a movable elastic contact piece with two contact pieces forward, and a top cover of the outer casing is formed by a cover plate for pressing the pressing handle of the pressing member; and the upper surface 5 has contact ί^ίΓ The bottom surface of the pressing handle of the pressing member has a downwardly protruding protrusion, and the portion below the pivoting portion after the protrusion is provided with: a lower contact of the contact piece for positioning the contact piece, In the case of the elastic contact piece system, the positioning protrusion having the flat plate portion and the self-aligning portion, and the positioning hole is inserted into the pressing member, respectively, is positioned in the L-shaped positioning portion and positioned on the pressing member. By the axis, it is rotated downwards so that the very contact piece is smoothly contacted with the guide piece to form a closed circuit. [Embodiment] A specific configuration example of the present invention will be described in detail with reference to the accompanying drawings as follows: 6 1314747 First, referring to the first to third figures, the push switch of the present invention mainly has two fixed conductive contacts for electrical contact from the bottom. The outer casing i of the sheets 1a and 1b, the pressing operation pressing member 2 housed in the outer casing 1, is elastically mounted on the movable contact piece 3 between the pressing member 2 and the outer casing 1, and the opening of the closed casing The cover 4 is formed. The outer casing 1 has two outer central recesses 11 each having a symmetrical wedge-shaped locking projection 12, and the inner end portions of the inner side walls have a pair of insulating boxes supporting the u-shaped grooves 13 for pivoting, and the inner surface of the bottom wall is provided. Two longitudinally parallel-arranged parallel conductive guides 10a, 10b for electrical contact, each of the conductive sheets 10a, 10b each having at least one end leg l〇a', l〇b' from the bottom wall or the side wall outward Extend for use with external wires. The pressing member 2, as shown in the first and fourth figures, is formed by a concave-shaped substrate ϊ, and the contact piece i located below the substrate 21 under the pressing handle 22 is enlarged. 23 'The dog is not on the substrate 21 The center of the top surface is slightly triangularly pressed, and 22' is disposed on both sides of the rear end of the substrate 21 to be perpendicular to the long axis of the substrate 21, and is disposed at the rear end of the substrate 2 at the upper end of the pivot 24. The connecting portion 25 having the curved portion and the L-shaped positioning portion 26 provided on the lower surface of the connecting portion 25 and extending downward to the side are formed. Both ends of the pivot shaft 24 protrude from both sides of the substrate 2 to be fitted into one of the U-shaped recesses 13 of the outer casing 1. The upper portion of the substrate 21, the pressing handle 22, the positioning projection 23, the pivot 24, the connecting portion 25, and the positioning portion 26 are integrally molded of plastic to constitute the pressing member 2. The positioning protrusion 23 is for positioning the movable contact piece 3, and the L-shaped positioning portion 26 is for supporting one of the legs of the movable contact piece 3, which will be described in detail later. The pressing member 2 thus constructed is rotatably fitted into the recess 13 of the two side walls of the outer casing by the both ends of the pivot shaft 24, and the pressing handle 22 is accommodated in the outer casing from the through hole 41 of the cover 4 1 and the inside of the space enclosed by the cover 4 (refer to the second and third figures). The movable contact piece 3 is formed by a conductive metal spring piece which is slightly U-shaped on one side as shown in the first and fifth bribes. The contact piece 3 has a flat portion 32 having a positioning hole 31 in the center thereof. After the flat portion 32, the 7 1314747 is curved, and the self-bending contact piece 34a is extended from the j portion. The contact end forms a curved contact with a common contact end shape. The front end bends and extends over the J joint portion 25 and the very contact contact piece is mounted under the pressing member 2, and the surface is W.; The side is provided with a through hole for the pressing member 22 of the multiple member 2 to be passed to the outer phase for pressing operation. The lower vertical bending field has a state in which the outer casing can be embedded in the state of 4, 2 ^ 43 5 ^ 12 Department 43 happens to accommodate the outside of the office. Movable ^^白 ίίίί and - the foot piece 34a, the opening degree is formed before the unloaded (that is, the restraint state after the S ^ installation is large, therefore, after the assembly is completed, the contact piece 3 is the energy of the animal to restore the opening. The assembling method of the above-described respective members will be described as follows: The freckle inserts the movable contact piece 3 from the front end notch portion of the pressing member 2, and the positioning hole 31 of the flat plate portion 32 covers the pressing member and makes the contact pin very close. The lower part of the piece 34b is locked on the L-shaped upper surface, and the three sets of the remaining three sets of the pressing member 2 are on the county-component. Then, the pressing member 2 is pressed upward by the pressing handle 22 to make the upper end of the pivot: positive; The opening of the pair of U-shaped grooves 13 is inserted therein, and the pivot 24, that is, the contact end of the contact piece 34a of the contact piece 3 at the same time is the contact piece of the conductive piece l〇a' but the position is high. The piece 34b is connected to the other conductive piece 10b. Since the opening degree of the two leg pieces 34a, 34b is set to be larger than the opening degree after the assembly is completed, the pivot 24 at this time is only in the groove 13 The opening portion has not yet entered the semicircular groove bottom. 13 1314747 ί: The side is aligned with the through hole 41 The pressing handle 22 of the member 2 is formed by the protruding piece. The locking hole 42 of the M3 is aligned with the engagement of the two side walls of the outer casing 1 and the P is slightly applied downward from the upper side to the opening of the outer casing 1. Guided by the lateral surface, the locking hole 42 can be inserted into the locking hole 42, and the folding portion 43 presses the handle 22 to protrude from the through hole 41, and the frame shaft 24 is positioned. Thus, the cover 4 closes the opening of the outer casing 1, and 34b is closed. The lightning guide m is connected to the upper surface of the conductive sheet 1〇a, and when the contact piece is in contact with the piece, the square fish piece t is separated from each other by an operation distance 'only when the pressing handle 22 is pressed, and the other conductive sheet 1Gb contacts to complete the closed circuit. Circuit. And can be easy? == parts;; f made and high buckle = 丄 ===; connected to the network, the secret can be reduced, and because the contact piece to the pivot of the moment arm is longer and conductive The larger contact pressure, the good contact can be called the new and improved pressing switch. The specific construction example of the far invention is described, in the structure and spirit, it is good in the technical field. Person J Shang, the following application, all the deformations and modifications are considered to be covered in this case [Simple description of the schema] __Off - Specific examples 3 is an exploded longitudinal cross-sectional view of the push switch of the present invention; FIG. 2 is a cross-sectional view of the present invention after removing the outer casing, and each of the drawings (4) is the front side and the upper surface of the pressing member of the present invention. Figure 5 on the right (Α)~ (Q is the front, top and right side views of the connection. 9 1314.747 [Main component symbol description] 1 Housing 10a, 10b fixed guide 10a, 10b, end 11 recessed 12 card Stop projection 13 U-shaped groove (groove) 14 Positioning notch 15 Protrusion 2 Pressing member 21 Substrate 22 Pressing handle 23 Positioning projection 24 Pivot 25 Connection portion 26 L-shaped positioning portion 3 Movable contact piece 31 Positioning hole 32 Flat plate portion 33 Bending portion 34a Normal contact contact piece 34b Very contact contact piece 4 Cover plate 41 Through hole 42 Insert hole 43 Folding part