A7 B7 經濟部中央標準局員工消費合作社印製 五、發明説明 ( 1 ) 1 1 發 明 之 背 景 1 1 | 本 發 明 係 有 關 於 一 種 觸 發 開 關 > 特 別 是 有 關 於 其 一 種 可 /— 1 ! 供 應 用 於 電 氣 動 力 工 具 中 者 • 0 讀· 先 1 1 閱 電 氣 動 力 工 具 之 中 習 知 的 觸 發 開 關 通 常 設 置 有 一 種 安 全 背 | 面 I 上 的 設 計 9 可 Μ 在 諸 如 運 送 的 期 間 避 免 被 按 下 Μ 免 在 電 之 注 1 } 意 1 I 氣 動 力 工 具 不 想 使 用 時 發 生 思、 外 動 作 的 情 形 0 此 種 安 全 上 事 項 再 1 的 設 計 係 出 現 在 諸 如 草 坪 推 割 機 (1 a w η m 〇 w e r) 割 草 機 > 填 寫 ί 樹 籬 修 剪 m (h e c g e t r ί m in G r ) 剪 髮 機 (h a ί Γ cl i p p e r) » 本 頁 '·—^ 1 I 鏈 鋸 Μ 及 圓 鋸 等 的 電 氣 動 力 工 具 之 中 Ο 1 1 此 外 亦 有 人 提 議 另 一 種 型 式 的 觸 發 開 關 此 種 觸 發 開 1 1 關 設 置 有 一 種 電 路 保 持 的 功 能 可 以 坭 持 電 路 的 閉 路 狀 態 1 訂 ,0 依 此 種 開 關 的 設 計 一 旦 觸 發 開 關 被 按 下 便 可 以 在 不 1 1 須 持 續 按 住 觸 發 機 的 情 況 之 下 維 持 動 力 工 具 的 連 m 1··^ 動 作 1 1 I 9 Μ 便 減 低 必 須 持 續 按 注 觸 發 搬 慨 的 勞 力 〇 此 種 電 路 保 持 型 1 1 式 的 觸 發 開 關 係 被 應 用 於 諸 如 圓 鋸 9 鑽 機 9 Μ 及 研 磨 機 等 1 C 的 電 氣 動 力 工 具 之 中 〇 Γ 1 此 外 ί 曰 本 實 用 新 案 公 開 昭 第 58 -85723 號 Μ 及 平 第 2 - 1 137723 號 案 中 亦 揭 示 了 一 種 觸 發 開 關 其 具 有 安 全 設 計 1 1 I 及 電 路 保 持 的 功 能 〇 1 在 此 類 的 習 知 觸 發 開 關 之 中 其 構 造 係 在 其 所 具 有 的 安 1 1 全 設 計 上 有 所 不 同 亦 即 有 些 觸 發 開 關 只 有 電 路 保 持 功 1 1 能 9 而 有 些 m 擁 有 安 全 設 計 Μ 及 電 路 保 持 功 能 兩 者 〇 因 此 I 9 為 了 在 同 個 工 廠 内 生 產 各 種 型 式 的 觸 發 開 關 諸 如 觸 1 1 發 機 Μ 及 用 來 容 納 觸 發 開 關 的 外 殻 > 亦 必 須 依 據 觸 發 開 關 1 1 本紙張尺度適用中阀國家標卒（CNS ) Λ4規格（2丨OX 297公維） -4 五、發明説明（2 A7 B7 備 準 t 君 3 Θ 分 60 獨(' 覃 J 種 品 每產 須化 必樣 亦..多 此.量 因小 ， 厂 同來 不近 所·據 有依 而 ， 式過 型不 的 ο Γ π • 1 η a si 機 在 勢 趨 求 需 的 性 容 相 有 要 需 便 間 之 件 組 或 件 部 械 要 概 之 明 發 械一 機有 其具 MMra Mora β 摄 開開 發發 觸觸 種的 一 置 供設 提全 於安 在種· 即 一 此有 因具 ， 在 的Jy 目 可 之件 明部 發或 本件 組 保話 路句 電換 14 與。 計性 設容 全相 安的 有間 具其 及供 M提 開 之 發關 觸開 的發 能觸 功的 持能 保功 路種 電兩 種'持 此同 於不 用造 應製 M中 可廠 件工 組 一 或同 件在 β. /Λ s>J 械可 機 便 的 K 般 ， 一 中 ， 之 中關 之開。 明發關 發觸開 本的發 在式觸 型式 說些型 Ηι·-Ιιη- Κ-- 餛 夕 開之 發具 觸 Η 種力 一 動 供氣 提 電 用 一 利於 Μ置 可設 的 ， 目關 它 開 其主 及 一 的含 目 包 一 係 此其 明 ， 發成 本達 而 式依 方。 轉關 樞開 可主 Μ下 機按 發而 觸作 一 動 ，- 十w,,w 路拉 霄 0 氣機 電發 一 觸 閉用 關利 及 K 啟内 開 殼 供外 M於 內置 殻1¾ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 二 發 第觸 與 一 部與 壁份 1 部 第免 的避 置動 對位 成機 形發 相觸 互 一 有有 具具 機M 發係 @ β, 觸 ώ口 該壁 , 1 良第 改。 其部 據壁 有第 具。 Μ·成 係形 則 所 部0Γ 壁孔 二 二 第第 。 的 成份 形部 所合 部接 孔鈕 一 按 第 一 的與 份份 部部 許過 容通 動紐 拉按 機 一 Μ 第 地。 性作 睜 勒 xnj ΠΒΓ- 選 轉 被樞 可的 各機 並發 ’ 觸 形整 構調 的供 同 Μ 不內 為殻 互外 有於 具置 紐設 按式 三 方 第動 至移 一 可 的 ’ 式能 型功U 三關！ 第開| 至全| 一安I 第種 供一 -提有 別具一 分關 fl 按發 三·觸 第的 與式 nu . 飪 S按 h 二第一 第 。 ， 厭 鈕開 按發 一 觸 用 適 度 尺 張 紙 本 準 標 家 國 麟 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（3 ) 第二型式的觸發開關具有一種電路保持功能，而第三型式 的觸發開關則具有一安全開關功能與電路保持功能雨者。 利用分別在觸發機的第一與第二壁部中形成第一與第二 孔部，並利用三種按紐中選定的一種與觸發機配合，便可 Μ很容易地選擇並製造觸發開關，而觸發開關便可K發揮 一種安全開關，一種電路保持開關，或安全開關與電路保 持開關兩者之功能。在每一種閲關的製造中，可Κ使用通 用的觸發機與通用的外殻，亦即，觸發機與外殻在三種型 式的觸發開關之間係為相容的組件，只有按鈕的選擇Μ及 選定按紐的組配是必要的。其結果，組件的數量便可Μ因 而減少，生產成本即可Μ降低，Μ適應於近來「小量多樣 化產品」的需求趨勢。此外，本發明之觸發開關具有簡單 的構造*其具有穗定的動作以及可靠性。 圖式之簡要說明 附画之中： 圖1為一示意圖，其顯示依據本發明一具體例之一觸發 開關，其一部份外殻已被除去； 圆2為一側視圖，其顯示依據本發明一具體例之一觸發 開關，由觸發機之第一壁部觀察之視圖； 圖3為觸發機之前視圖； 圖4為一觸發開關之側視圖，其顯示朝向觸發機之第二 壁部觀察之視圖； ' _ 圖5為沿著圖4中V - V線所截取之截面圖； _ 6為一放大視圓，其中顯示沿圖3中V I - V I箭頭所指方 本紙張尺度適用t國阀家標隼（CNS ) Λ4規格（2丨Ο X 297公漦） _ r _ --------*---- (請先聞讀背面之注意事項再填寫本頁) 、1TH ^ A7 B7 五、發明説明（4 ) 向所觀察的觸發機之孔部； 圖7顯未將要組裝於觸發開關之中，K依據具體例而使 觸發開關發生一種安全開關功能的第一按紐； 圖8顯示將要組裝於觸發開關之中，Μ依據具體例而使 觸發開關發生一種電路保持功能的第二按紐； 圖9顯示將，組裝於觸發開關之中，Κ依據具體例而使 觸發開關發生安全開關與電路保持兩種功能的第三按鈕； 圖1 0 U )與1 0 ( b )係說明依據具體例的觸發機拉動避免狀 態的視圖，其中所裝用的為第一按鈕，其中圖1 0 (a)顯示 觸發機的第一孔部與第一按紐間的位置關係，而圖1 0 ( b) 則為截面圖，其顯示第一按紐，觸發機與外殻之間，在第 一按鈕被按下之前的相互位置關係； 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 圖11 (a)與n (b)係說明依據具體例的觸發機泣動容許狀 態的視圖，其中所裝用的為第一按鈕，其中圖1 1 (a)顯示 觸發機的第一孔部與第一按紐，在觸發機的拉動動作之前 ，其間的相互位置關係，而圖1 1 ( b)則為截面圖，其顯示 第一按鈕，觸發機與外殻之間，在第一按紐被按下之後， 且觸發機的拉動動作進行之前的相互位置關係； 圖1 2 ( a )與1 2 ( b )係說明依據具體例的觸發機在拉動動作 之後的狀態之視I®，其中所裝用的為第一按紐，其中圖 1 2 (a )顯示觸發機的第一孔部與第一按鈕，在觸發機的拉 動動作之後，其間的相互位Ϊ關係，而圖1 2 (b )則為截面 圖，其顯示第一按鈕，觸發機與外殻之間，在第一按鈕被 按下，且觸發機的拉動動作進行之後的相互位置關僑； 本紙張尺度適用中國國家標準（CNS ) Λ4現格（210X 297公釐） 7 A7 B7 五、發明説明（5 圖1 3 ( a )與1 3 ( b )係說明依據具體例的觸發機拉動容許狀 態的視圖，其中所裝用的為第二按鈕，其中圖1 3 ( a )顯示 觸發機的第二孔部與第二按紐，在觸發機的拉動動作之前 r ，其間的相互位置關係，而圖1 3 ( b )則為截面圖，其顯示 第二按紐，觸發機與外殻之間，在第二按紐被按下之後的 相互位置關係； 圖1 4 ( a )至1 4 ( c )係說明依據具體例的觸發機拉動狀態的 視圖，其中所裝用的為第二按鈕，其中圖1 4 (a )顯示觸發 機的第二孔部與第二按紐，在觸發機的拉動動作之後，其 間的相互位置關係，圖1 4 ( b)則為截面圖，其顯示第二按 紐，觸發機與外殼之間，在第二按鈕被按下之前，且觸發 機的拉動動作進行之後的相互位置關係，而圖1 4 ( c )則顯 示第二孔部與第二按鈕，當維持觸發機拉動狀態時，其間 的相互位置關係； 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填窝本頁) 圖1 5 ( a )至1 5 ( c )係說明依據具體例的觸發機拉動鎖定狀 態的視圖，其中所裝用的為第二按鈕，其中圖1 5 (a )顯示 觸發機的第二孔部與第二按紐，在觸發機鎖定之後，其間 的相互位置關係，圖1 5 ( b)則為截面圖，其顯示第二按紐 ，觸發機與外殻之間，在第.二按紐被按下，且一名操作者 的手指由觸發機上釋放開之後的相互位置關係，而圖 1 5 ( c )則顯示第二孔部與第二按鈕，在操作者的手指由觸 發機上釋放開之後，其間的相互位置關係； 圖1 6 ( a )與1 6 ( b )係說明依據具體例的觸發機拉動避免狀 態的視_，其中所裝用的為第三按紐，其中圖1 6 ( a )顯示 本紙張尺度適用中國阀家標準（CNS )以規格（2IOX297公釐） 8 A7 B7 經濟部中央標準局員工消費合作社印製 五、發明説明（6 觸發機的第T孔部與第三按鈕，在觸發機的拉動動作之前 ，其間的相互位置關係，而圖1 6 ( b )則為截面圖，其顯示 第三按鈕，觸發機與外殻之間，在第三按紐被按下之前的 相互位置關係； 圖17 (a )與1 7 ( b )係說明依據具體例的觸發機拉動容許狀 態的視圖，其中所裝用的為第三按紐，其中圖1 7 (a)顯示 觸發機的第一孔部與第三按鈕，在觸發機的拉動動作之前 ，其間的相互位置關係，而圖1 7 ( b )則為截面圖，其顯示 第三按鈕，觸發機與外殻之間，在第三按紐被按下之後， 且在觸發機的拉動動作之前的相互位置關係； 圖1 8 ( a )至1 8 ( c )係說明依據具體例的觸發機拉動狀態的 視圖，其中所裝用的為第三按紐，其中圖1 8 ( a )顯示觸發 機的第一孔部與第三按紐，在觸發機的拉動動作之後，其 間的相互位置關係，圖1 8 ( b )則為截面圖，其顯示第三按 鈕，觸發機與外殼之間，在第三按紐被按下，且觸發機的 拉動動作進行之後的相互位置關係，而圖1 8 ( c )則顯示第 二孔部與第三按鈕，在觸發機的拉動動作進行之後，其間 的相互位置關係； _ 1 9 U )至1 9 (c )係說明依據具體例的觸發機拉動鎖定狀 態的視圖，其中所裝用的為第三按紐，其中圖19 (a)顯示 觸發機的第二孔部與第三按紐，在觸發機鎖定之後，其間 的相互位置關係，圖1 9 ( b )則為截面圖，其顯示第三按紐 ，觸發機與外殻之間，在第三按妞被進一步按下，且一名 操作者的手指由觸發機上釋放開之後的相互位置關係，而 本紙張尺度適用中國阀家摞卒（CNS ) Λ4規格（210X 297公漦） --I I - I l·—--Γ I ! (請先閲讀背面之注意事項再填寫本頁) 訂------0"^ . 9 A7 B7 五、發明説明（7,) 圖1 9 ( C )則顯示第二孔部與第三按紐，在操作者的手指由 觸發機上釋放開之後，其間的相互位置關係；以及 圖2 0為一示意圃，其中顯示觸發開關的一種修改型式C 較佳具體例之詳細說明 依據本發明一較佳具體例的一觸發開關，配合所附圖式 1至1 9，將在後面予Μ詳細說明。 觸發開關的整個設計係顯示於圖1之中。一部電氣動力 工具使用一個觸發開關作為其可以手操作的一種開關。動 力工具具有一外殼6，其係作為手可抓持的部份，並可令 一觸發機2Μ可樞轉方式，透過一樞轉軸3而固定於其上。 外殻6上附裝有具有一紐5的一個主開關4。觸發機2具有一 個突起2 a，其可Μ頂抵於紐5上，Κ便在觸發機2被按下時 ，能夠使一電路形成閉路。若觸發機2被釋放開，觸發機2 便會由於設置在主開關4上的一只偏置彈簧（未顯示）的緣 故，而回到其原始位置，Κ便使電路形成開路。後面將要 說明的一個壓按鈕係以相對於外殻13可·滑動的方式設置， 並延伸經過觸發機2。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 如圖1 0 ( b )的實例中所顯示的，外殻6之作用係為一個手 可抓持的部份，包括有兩個互補的半部，或外殻部件6 A與 6 B。其中一外殻部件6 A係設置有一套管6 a，其内徑為D 1。 另一外殻部件6 B則設置有一套管6 b，其內徑為D 5。 觸發機2係顯示於圖1至6之中。觸發機2包括互相對置的 第一與第二壁部2 Λ與2 B，其間Μ —個距離分開。第一與第 二壁部2 Α與2 Β係由蚰承承接孔2 b所構成，可供觸發機2附 本紙張尺度適用十國國家標攀（CNS ) Λ4規格（2丨0X297公釐） 10 A7 B7 五、發明説明（8 ) (請先閱讀背面之注意事項再填寫本頁) 接至抓持部份（3上。第一壁部2 Λ具有第一孔2 c伸展其整個 厚度。第一孔2 c的形狀提供了一個觸發機拉動避免部份 2 c 1與一個觸發機拉動容許部份2 c 2。觸發機拉動避免部份 2cl係由內徑為丨)2的一個大直徑，份所，提供，而觸發機拉 動容許部份2 c 2則由内徑為D 3的一個小直徑部份2 c 2所提供 ，且其中心又偏離於大圆2 c 1的中心位置。.小圓2 c 2的一部 份由大圓2 c 1的構形部份朝外突出，但小圓2 c 2的大部份區 域則係與大圓2 c 1重疊。因此，第一孔2 c的構形大致係為 一種大肚圓火爐的形狀。 經濟部中央標準局員工消費合作社印製 第二壁部2 B具有第二孔2 d，其設置位置係大致與第一孔 2 c形成對置。第二孔2 d的構形提供了一個按鈕通過部份 2 V Μ及一個按鈕接合部份2 e。按紐通過部份2〆具有圓形 的形狀，其内徑為D4，且其中心係與第一孔2c的小圓2c2 互相重合。如圖4至6中所顯示的，按紐接合部份2e係由一 個圓形的一部份提供，此圓與按紐通過部份2 的圓不同 。按鈕接合部份2 e在第二孔2 d的內緣表面上有階狀部份， 使得圓的2 e部份徑向朝向圓2 V而形成階狀。亦即，圓2 e 由按紐通過部份2〆的圓朝外突出的部份，係在直徑線上 反對於由觸發機拉動避免部份2 c Γ發出的，觸發機拉動容 許部份2 c 2的突出方向。 第一按紐3 1 K及應用到第一按紐3 1的觸發開關之動作將 參考画7，_^及1 0至1 2而予以說明。當第一按紐3 1與外殻6 一起組裝時，第一按紐3 1可適於觸發開關產生安全開關的 功能。 氏張尺度適用中國國家標中-(〇呢）六4規格（210'_><297公漦） A7 B7 五、發明説明（9 ) 第一按鈕3 1具有作為中心軸用的一個軸部份31 d，Μ及 環繞著中心軸3 1 d而同心設置的，整體成形的第一凸起部 份。軸部份3 1 d之直徑為d 5，其係Μ可滑動方式插入於外 殻部件6 Β的套管6 b内。軸部份3 1 d的頂端係頂抵於套管6 b 的底部，以便界定第一按鈕3 1的按壓長度。 第一凸起部份具有一個小直徑的凸起部份3 1 a，其係Μ 可滑動方式由外殻部件邙Λ的套管（5 a加Κ導引，以及在第一 凸起部份3 1 a的開放端所設置的一個大直徑的凸起部份3 1 b ，其係適於機械性地與觸發機拉動避免部份2 c Γ發生交互 動作。小直徑凸起部份3 1 a厚有一，種襯套式的構形，其外 徑為（Π，並可W抵座於小直徑部份之上，亦即，當觸發機 2被拉動時，抵座於第一孔2 c的觸發機拉動容許部份2 c 2之 上。 經濟部中央標準局員工消費合作社印製 大直徑凸起部份3 1 b係為一種凸緣形狀的構形，由小直 徑凸起部份3 1 a的開放端徑向朝外突出。大直徑凸起部份 3 1 b之外徑為d 2，可適合插入於大直徑的部份，亦即，第 一孔2 c的觸發機拉動避免部份2 c 1。如圖1 0至1 2中所顯示 的，一個壓縮彈簧7係被設置於第一按紐3 1的軸部份3 1 d上 。壓縮彈簧7可適於將第一按鈕3 1偏置朝向其壓按方向的 反對方向。如圖1 0 ( b )中所顯示的，由於壓縮彈簧7的偏置 力的緣故，大直徑凸起部份3 1 b的平坦圓碟表面即可用來 頂抵於外殼部件6 Λ的套管（3 a之開放端表面上。 利用此種設計，如圖1 0 ( a )與1 0 ( b )所顧示的，若鈕3 1未 被按下，第一按鈕：Π ίΐ可利用壓縮彈簧7的偏置力，而保 本紙張尺度適用中國國家標率（CNS ) Λ4規格（2IOX297公漦） (請先閱讀背面之注意事項再填寫本頁) -12 - . A7 B7 五、發明説明（l〇) 持在其離開外殼.6最突出的位置上。在此種情況之下，第 一按紐3 1的大直徑凸起部份3 1 b即被定置於觸發機拉動遊 免部份2 c 1内。其结果，當觸發機被拉動時，亦即，當2 c 1 的部份在圖1 0 ( a )中被向右移動時，觸發機拉動避免部份 2 c 1便立即被帶至與大直徑凸起部份3 1 b的外緣表面相頂抵 的位置。如此，觸發機拉動的動作即得Μ遊免。在此種情 況之下，主開關4並未被觸發機2的突起2 a所壓按，亦因此 ，電路的開路狀態即得K保持。其結果，一名使用者便可 K得到保護，Μ免遭受意外或動力工具之未期待動作的傷 害。A7 B7 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (1) 1 1 Background of the invention 1 1 | This invention relates to a trigger switch > in particular, to its availability / — 1! For electric power tools • 0 reads • first 1 1 Read the conventional trigger switch in electric power tools usually with a safety back | Design on face 9 can be avoided during periods such as shipping Note 1 in electricity} mind 1 I think of aerodynamic tools when you do n’t want to use it. 0 This kind of safety matters and 1 design appears in lawn mowers (1 aw η m 〇wer) mowing. Machine> Fill in ί hedge trimmer m (hecgetr ί m in G r) hair clipper (ha ί Γ cl ipper) »This page '' · — ^ 1 I Among electric power tools such as chain saws M and circular saws 〇 1 1 In addition, some people have proposed another type of trigger switch, such as trigger on 1 1 off. A circuit hold function can be used to hold the circuit. Closed state 1 order, 0 According to the design of this switch, once the trigger switch is pressed, it can maintain the connection of the power tool without holding the trigger 1 1 1 ^ Action 1 1 I 9 Μ This reduces the labor that must be continuously triggered by betting. This circuit-retaining type 1 1 type trigger-on relationship is applied to 1 C electrical power tools such as circular saws, 9 drills, 9 M, and grinders. 0 1 ί Japanese Utility Model Publication No. 58-85723M and Ping No. 2-1 137723 also disclose a trigger switch which has a safety design 1 1 I and a circuit holding function. 1 Among the conventional trigger switches of this kind, the structure is different in their safety. 1 1 The full design is different, that is, some trigger switches only have the circuit holding function 1 1 can 9 and some m have safety design M and circuit. Both functions are retained. Therefore, in order to produce various types of trigger switches in the same factory, such as the trigger 1 1 generator M and the housing to accommodate the trigger switch, it must also be based on the trigger switch 1 1 This paper standard is applicable Valve National Standard Soldier (CNS) Λ4 specification (2 丨 OX 297 public dimension) -4 V. Description of the invention (2 A7 B7 Prepared t Jun 3 Θ 60 points ('Qin J each product must be the same as each product. Because of this small amount, the factory is not close to each other. According to the basis, the style is not the same ο Γ π • 1 η a si The main equipment of the machine is a machine with its own MMra Mora β camera. All of Yu An's species, that is, there is a cause, the Jy project can be issued in the Ministry of the Ministry or this set of words and phrases to exchange 14 and. There are two types of design and capacity, including the two types of energy-saving and power-holding circuits that can be used to open and close the opening and closing of M. The same holds for the same as the non-manufacturable components in M. The work group one or the same is in β. / Λ s > J, which can be easily handled by K, one middle and one middle. Mingfa Guanfa Touchpad's hair style touch type says some types of Ηι · -Ιιη- Κ-- 馄 Xikai's hair has a touch of force, a force to move the air and electricity, and it is conducive to the setting of the Megumi. It opens its main and one-in-one package, which is so clear, the cost of delivery is up to the party. The turn-off pivot can be triggered when the main machine is disembarked.-Ten w ,, w lulaxiao 0 Pneumatic motors are closed with a switch and K open the inner shell for the outer M to the built-in shell 1¾ (please (Please read the notes on the back before filling this page.) The second issue of the print by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs and the first issue of the avoidance of the avoidance of the first issue of the first part of the wall are incompatible with each other. There is a machine with M hair system @ β, touch the mouth of the wall, 1 Liangdichang. Its department has a wall. Μ · 成 系 are part of the 0Γ wall hole 22nd. The component part of the shape part is connected to the hole button. One press the first part and the part part. Xuanj xnj ΠΒΓ- Selective rotation of the machines that can be pivoted concurrently 'Tactile shape adjustment for the same M not inside the shell and each other there is a setting button according to the three-way move to move one' Energy type U Sanguan! First open | to full | Yian I The first offer one-mention a unique one off fl Press the three touches and nu. For cooking S press h two first. The button is pressed and printed with a touch of a moderate rule. It is printed with a moderate rule. It is printed by A7 B7 of the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of the invention (3) The second type of trigger switch has a circuit holding function. The third type of trigger switch has a safety switch function and a circuit holding function. By forming the first and second holes in the first and second wall portions of the trigger, and using one of the three buttons to cooperate with the trigger, the trigger can be easily selected and manufactured, and The trigger switch K can function as a safety switch, a circuit hold switch, or both a safety switch and a circuit hold switch. In the manufacture of each type of customs, a universal trigger and a universal housing can be used, that is, the trigger and the housing are compatible components between the three types of trigger switches, and only the selection of the button Μ And the combination of selected buttons is necessary. As a result, the number of components can be reduced, and the production cost can be reduced. M is adapted to the recent demand trend of "small-volume diversified products." In addition, the trigger switch of the present invention has a simple structure * which has a fixed action and reliability. Among the brief descriptions of the drawings: Figure 1 is a schematic diagram showing a trigger switch according to a specific example of the present invention, a part of which has been removed; circle 2 is a side view, which is shown in accordance with the present invention. A specific example of the invention is a trigger switch viewed from the first wall of the trigger; Figure 3 is a front view of the trigger; Figure 4 is a side view of the trigger switch, which is viewed from the second wall of the trigger Figure _ _ Figure 5 is a cross-sectional view taken along the line V-V in Figure 4; _ 6 is an enlarged viewing circle, which shows the paper dimensions indicated by the arrows VI-VI in Figure 3 are applicable to the country Valve House Standard (CNS) Λ4 specification (2 丨 〇 X 297 cm) _ r _ -------- * ---- (Please read the precautions on the back before filling this page), 1TH ^ A7 B7 V. Description of the invention (4) To the hole of the trigger machine to be observed; Figure 7 shows that it will not be assembled in the trigger switch, and K is the first button to make the trigger switch a safety switch function according to specific examples. ; Figure 8 shows that the trigger switch will be assembled in the trigger switch. A second button that can be used; Figure 9 shows a third button that will be assembled in a trigger switch, and K will cause the trigger switch to have both a safety switch and a circuit holding function according to a specific example; Figure 10 U) and 1 0 ( b) is a view illustrating the pull-avoidance state of the trigger according to a specific example, in which a first button is used, and FIG. 10 (a) shows a positional relationship between a first hole portion of the trigger and a first button Figure 10 (b) is a cross-sectional view showing the first button, the trigger and the housing, before the first button was pressed, the mutual position; (Please read the precautions on the back before filling this page) Figure 11 (a) and n (b) are views showing the triggering state of the triggering machine according to the specific example, in which the first button is used, of which Figure 11 (a) shows the first hole part and the first button of the trigger machine before the trigger action of the trigger, the mutual position relationship between them, and Figure 1 1 (b) is a cross-sectional view, which shows the first Button, between trigger and shell, after the first button is pressed, and trigger The mutual positional relationship before the pulling action is performed; Figures 1 2 (a) and 1 2 (b) are views I® illustrating the state of the triggering machine after the pulling action according to a specific example, in which the first button is used Fig. 12 (a) shows the first hole and the first button of the trigger. After the trigger action of the trigger, the mutual relationship between them is shown, and Fig. 12 (b) is a cross-sectional view. Display the first button, the trigger and the housing, the mutual position after the first button is pressed and the trigger of the trigger is performed; this paper size applies the Chinese National Standard (CNS) Λ4 is present (210X 297 mm) 7 A7 B7 V. Description of the invention (5 Figures 1 3 (a) and 1 3 (b) are views illustrating the triggering state of the trigger according to a specific example, in which a second button is used, of which Figure 13 (a) shows the mutual position relationship between the second hole and the second button of the trigger before the trigger action of the trigger, and Figure 13 (b) is a sectional view showing the first Two buttons, between the trigger and the shell, after the second button is pressed Figures 1 4 (a) to 1 4 (c) are views illustrating the pulling state of the trigger according to a specific example, in which a second button is used, of which Figure 1 4 (a) shows the first The positional relationship between the two holes and the second button after the triggering action of the trigger, Figure 14 (b) is a sectional view, which shows the second button, between the trigger and the shell, in the first The mutual positional relationship between the two buttons before they are pressed and after the triggering action of the triggering machine is performed, and FIG. 14 (c) shows the second hole portion and the second button. When the triggering state of the triggering machine is maintained, the mutual position therebetween Relationship; Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page) Figures 1 5 (a) to 1 5 (c) illustrate the state of the triggering mechanism based on the trigger of the specific example A view, in which a second button is used, wherein FIG. 15 (a) shows the second hole portion of the trigger and the second button. After the trigger is locked, the mutual position relationship between them is shown in FIG. 15 (b ) Is a sectional view, which shows the second button, the trigger and the shell After the second button is pressed and an operator ’s finger is released from the trigger, the mutual position relationship is shown in FIG. 1 (5) (c), which shows the second hole and the second button. After the user ’s finger is released from the trigger, the mutual positional relationship between them is shown in FIG. 16 (a) and 16 (b) are views illustrating the trigger avoidance state of the trigger according to a specific example. The third button, of which Figure 16 (a) shows that the paper size is applicable to the Chinese Valve Standard (CNS) to the specification (2IOX297 mm) 8 A7 B7 Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The positional relationship between the T-th hole of the trigger and the third button before the trigger of the trigger, and Figure 16 (b) is a cross-sectional view showing the third button, the trigger and the shell The mutual positional relationship before the third button is pressed; Figures 17 (a) and 17 (b) are views illustrating the triggering state of the trigger according to a specific example, in which the third button is used Button, Figure 1 7 (a) shows the first hole and the third button of the trigger Before the triggering action of the triggering machine, the mutual positional relationship therebetween, and FIG. 17 (b) is a sectional view showing a third button, between the triggering machine and the housing, after the third button is pressed, And the mutual positional relationship before the triggering action of the triggering machine; Figures 18 (a) to 18 (c) are views illustrating the triggering state of the triggering machine according to a specific example, in which a third button is used, of which Figure 18 (a) shows the first hole part and the third button of the trigger, and the mutual positional relationship between them after the trigger action of the trigger. Figure 18 (b) is a sectional view showing the third button , The mutual positional relationship between the trigger and the shell after the third button is pressed and the trigger action of the trigger is performed, and FIG. 18 (c) shows the second hole and the third button. After the machine ’s pulling action is performed, the mutual positional relationship between them; _ 1 9 U) to 19 (c) are views illustrating the state of the triggering lock of the triggering machine according to a specific example, in which a third button is used, of which Figure 19 (a) shows the second hole and the third button of the trigger. After the machine is locked, the mutual positional relationship between them is shown in FIG. 19 (b), which is a cross-sectional view showing the third button, between the trigger and the housing, and the third button is further pressed, and one operation The mutual positional relationship of the fingers of the user after the trigger is released, and this paper size is applicable to the Chinese valve family (CNS) Λ4 specification (210X 297 cm) --II-I l · ---- Γ I! ( Please read the precautions on the back before filling in this page) Order ------ 0 " ^. 9 A7 B7 V. Description of the invention (7,) Figure 1 9 (C) shows the second hole and the third button Button, after the operator ’s finger is released from the trigger, the mutual positional relationship therebetween; and FIG. 20 is a schematic diagram, showing a modified version of the trigger switch C, a detailed detailed description of a preferred embodiment according to the present invention. A trigger switch of the preferred embodiment will be described in detail in the following with reference to Formulas 1 to 19 of the accompanying drawings. The entire design of the trigger switch is shown in Figure 1. An electric power tool uses a trigger switch as a switch that can be operated manually. The power tool has a housing 6 which is a part that can be grasped by a hand, and can make a trigger 2M pivotable and fixed to it through a pivot shaft 3. A main switch 4 having a button 5 is attached to the housing 6. The trigger 2 has a protrusion 2a, which can be pressed against the button 5. When the trigger 2 is pressed, K can make a circuit form a closed circuit. If the trigger 2 is released, the trigger 2 will return to its original position due to a bias spring (not shown) provided on the main switch 4, and K will open the circuit. A push button to be described later is provided so as to be slidable relative to the casing 13, and extends through the trigger 2. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) As shown in the example of Figure 10 (b), the function of the housing 6 is a hand-holding The part consists of two complementary halves, or housing parts 6 A and 6 B. One of the shell parts 6 A is provided with a sleeve 6 a, and its inner diameter is D 1. The other housing part 6 B is provided with a sleeve 6 b having an inner diameter D 5. The trigger 2 is shown in Figures 1 to 6. The trigger 2 includes first and second wall portions 2 Λ and 2 B opposite to each other, and M is separated by a distance therebetween. The first and second wall portions 2 Α and 2 Β are composed of 蚰 bearing receiving holes 2 b, which can be used to trigger the machine 2 attached to this paper. The size of the paper applies to the ten national standard climbing (CNS) Λ4 specifications (2 丨 0X297 mm) 10 A7 B7 V. Description of the invention (8) (Please read the precautions on the back before filling in this page) Connect to the holding part (3. The first wall part 2 Λ has the first hole 2 c to extend its entire thickness. The shape of the first hole 2 c provides a trigger pull-avoiding portion 2 c 1 and a trigger pull-avoiding portion 2 c 2. The trigger pull-avoid portion 2cl is a large diameter from the inner diameter 丨) 2 , And the triggering machine pull allowable part 2 c 2 is provided by a small diameter part 2 c 2 with an inner diameter of D 3, and its center is deviated from the center position of the large circle 2 c 1. A part of the small circle 2 c 2 protrudes outward from the configuration part of the large circle 2 c 1, but most of the area of the small circle 2 c 2 overlaps with the large circle 2 c 1. Therefore, the configuration of the first hole 2 c is roughly the shape of a pot-shaped stove. Printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The second wall 2B has a second hole 2d, and its installation position is approximately opposite to the first hole 2c. The configuration of the second hole 2 d provides a button passing portion 2 V M and a button engaging portion 2 e. The button passing portion 2〆 has a circular shape, its inner diameter is D4, and its center coincides with the small circle 2c2 of the first hole 2c. As shown in Figs. 4 to 6, the button joint portion 2e is provided by a part of a circle, which is different from the circle of the button passage part 2. The button joint portion 2e has a stepped portion on the inner edge surface of the second hole 2d, so that the circled portion 2e is radially stepped toward the circle 2V to form a stepped shape. That is, the part of circle 2 e protruding outward from the circle of button 2 through part 2 is on the diameter line and opposed to the part 2 c Γ which is pulled by the trigger, and the trigger part 2 c is pulled by the trigger. 2 protruding direction. The operation of the first button 31 K and the trigger switch applied to the first button 31 will be described with reference to drawings 7, _ ^, and 10 to 12. When the first button 31 is assembled with the housing 6, the first button 31 can be adapted to trigger the switch to produce a safety switch function. The Zhang scale is applicable to the Chinese National Standard-(〇 呢) six 4 specifications (210 '_ > < 297 gong) A7 B7 V. Description of the invention (9) The first button 3 1 has a shaft portion for the central axis The portion 31 d, M and the first convex portion formed integrally around the central axis 3 1 d are integrally formed. The diameter of the shaft portion 3 1 d is d 5, which is slidably inserted into the sleeve 6 b of the housing member 6 B. The top end of the shaft portion 3 1 d abuts against the bottom of the sleeve 6 b so as to define the pressing length of the first button 31. The first convex portion has a small diameter convex portion 3 1 a, which is slidably guided by a sleeve (5 a plus κ) of the housing part 邙 Λ, and the first convex portion A large-diameter convex portion 3 1 b provided at the open end of 3 1 a is suitable for mechanically interacting with the trigger to avoid the portion 2 c Γ. The small-diameter convex portion 3 1 a is thick, a bush-like configuration, whose outer diameter is (Π, and W can be seated on the small diameter part, that is, when the trigger 2 is pulled, it is seated on the first hole 2 The trigger of c is pulled above the allowable part 2 c 2. The large-diameter convex part 3 1 printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is a flange-shaped configuration composed of the small-diameter convex part. The open end of 3 1 a protrudes radially outward. The outer diameter of the large-diameter convex portion 3 1 b is d 2, which can be suitable to be inserted into the large-diameter portion, that is, the trigger of the first hole 2 c is pulled Avoid part 2 c 1. As shown in FIGS. 10 to 12, a compression spring 7 is provided on the shaft part 3 1 d of the first button 31. The compression spring 7 may be adapted to place the first One The button 3 1 is biased in the direction opposite to its pressing direction. As shown in FIG. 10 (b), due to the biasing force of the compression spring 7, the large-diameter convex portion 3 1 b is a flat disk. The surface can be used to abut the casing part 6 Λ on the open end surface of 3 a. With this design, as shown in Figures 10 (a) and 10 (b), if the button 3 1 Not pressed, the first button: Π ΐ can use the biasing force of the compression spring 7, and the guaranteed paper size applies the Chinese National Standard (CNS) Λ4 specification (2IOX297). (Please read the precautions on the back before filling (This page) -12-. A7 B7 V. Description of the invention (10) Hold it at the most prominent position away from the case .6. In this case, the large diameter convex part of the first button 3 1 3 1 b is set in the trigger-free part 2 c 1 of the trigger. As a result, when the trigger is pulled, that is, when the part of 2 c 1 is moved to the right in FIG. 10 (a) At that time, the trigger-avoiding portion 2 c 1 of the trigger is immediately brought to a position that abuts against the outer edge surface of the large-diameter convex portion 3 1 b. In this case, the M switch is exempted. In this case, the main switch 4 is not pressed by the protrusion 2 a of the trigger 2, and therefore, the open state of the circuit is maintained by K. As a result, a user will K can be protected from accidental or unexpected movements of the power tool.
如圖1 1 ( a )與1 1 ( b )中所顯示的，若第一按鈕3 1被按下直 到軸部份3 1 d的尾端表面因壓縮弾簧7的偏置力而頂抵於套 管6 b的底部時，第一按紐3 1的大直徑凸起部份3 1 b即與第 一孔2 c分離，而小直徑凸起部份3 1 a則被帶至相對於第一 孔2 c形成對置的位置。由於小直徑凸起部份3 1 a之大小被 設定為可與小直徑部份（觸發機拉動容許部份）2 c 2相配合 ，觸發機2便可Μ繞著一樞轉軸3的軸線而轉動一個行程S 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) r ，直到小直徑部份2 c 2被帶入與小直徑凸起部份3 1 a發生表 面接觸的位置，如圖1 2 ( a )與1 2 ( b )中所顯示的情形。因此 ，觸發機2的突起2a便會壓按主開關4的紐5 (圖1)，使得電 路閉路，Μ便致動一個驅動馬達（未顯示）。利用拉動觸發 機2，處於第一孔2 c的一個位置上的第一壁2 Λ便進入套管 6 a的尾端面與大直徑凸起部份b的凸緣圓碟形表面之間 。因此，只要觸發機2保持被拉注，第一按紐3 1的壓按位 本紙浪尺度適用中國國家.標卒（CNS ) Μ規格（210X 297公犛） .9 A7 - B7 五、發明説明（U ) ~置便得Μ保持。 若觸發機2被釋放開，觸發機2便由於主開關4的彈簧（未 顯示）之偏置力的緣故，而會被移至其原始的位置。若觸 發機2Μ樞轉方式，而被移至第一孔2c的大直徑部份2cl變 成實質上與大直徑凸起部份3 1 b形成同軸的位置時，大直 徑凸起部份3 1 b即可通過第一孔2 c，而第一按紐3 1則可Μ 相對於套管6 a沿軸線方向滑移，直到大直徑凸起部份3 1 b 的凸緣圓碟形表面被帶至頂抵於套管6 a的尾端表面時的位 置。其结果，便可Μ得到如圖1 0 ( a )與1 0 ( b )中所顯示的初 始狀態，此時觸發開關可Μ作為一種安全開關。 如前所述，若第一按紐3 1係與外殻6 —起組合，Μ便容 許觸發開關得Μ使用作為安全開關的話，則第一按鈕的第 一凸起部份3 1 a與3 1 b便只與觸發機2的第一孔2 c —起動作。 下面配合圖8與13至15說明第二按妞41* Μ及採用第二 按紐41的觸發開關的相關動作。當第二按紐41與外殻6組 r 合在一起時，第二按紐4 1便可適於令觸發開關發生電路保 持的功能。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 第二按紐4 1具有作為中心軸用的一個軸部份4 1 d，Μ及 環繞著中心軸4 1 d而同心設置的，整體成形的第二凸起部 • 份。與第一按鈕3 1相Μ的情形，軸部份4 1 d之直徑為d 5， 其係Μ可滑動方式插入於外殻部件6 B的套管6 b內。軸部份 4 1 d的頂端係頂抵於套管6 b的底部，Μ便界定第二按紐4 1 的按壓畏度。 第二凸起部份具有一個小直徑的凸起部份4 1 a，其係Μ 本紙張尺度適用中國國家標準（CNS ) Λ4規格（2丨〇Χ2()7公漦） 14 A7 B7 五、發明説明（12 ) 可滑動方式由外殻部件6 Λ的套管6 a加Μ導引，第一大直徑 凸起部份4 1 b，其係適於Μ —個空間而與觸發機拉動容許 部份2 c 2形成對置，Μ及g二大直徑凸起部份4 1 c，其直徑 大於第一大直徑凸起部份4 1 b之直徑，並適於通過第二凸 起部份2 d的通過部份2 d ϋ，並可與按鈕接合部份2 e互相接 徑^ 具 直bj 、 1 4 的份 1 β 3 0 鈕起 按凸 一 徑 第直 於大 小 Γ 3 # d P 徑 ’ 直外 之此 a 1 ο Γ}4徑 份 卩直 §之0 ^ 凸31 徑份 直部 小起 凸 (請先閱讀背面之注意事項再填寫本頁) 份 41部 份起 部凸 起徑 3 ΰ直份 徑大部 直一起 小第凸 與.。徑 fidl直 並為小 , 徑的 形直31 構其妞 的而按 裝 ， 一 套體第 襯整與 種一係 一 成用 之 第 於 對 相 形作部 端之孔 為 徑 直 之 b 1 4 份 B- § 起 凸 徑 直 大 1 第 亦 ο 同 相 者 第41 經份 插部 地起 弛凸 鬆徑 許直 容大 可二 小 第 大， 其外 份 β, 咅 徑 直 大 的 C 2 孔 形 構 的 狀 形 緣 凸 1 種 1 為 係 此 其 且 體 整1 成 形端， 尾 d 勺 2— ba孔 41一一 份第 RH ΛΖ 咅 方 起小 凸d4 徑徑 直 直 大此一 ο 第d4 與為 係徑 並直 起 凸 徑' 直 大二 第 便.Μ 孔二 第 過 通 入 c3 插 夠 能 C 1X 4 份 *口 經濟部中央標準局員工消費合作社印製 功 機的 發持 觸保 路 紐 按二 第 與 機 發 觸 與 中 其 lit 電相 生係 發， I 1 ES 4 開鈕 發按 觸 二 許第 容的 Μ 合 可接 X/J 合 組 的 的 置 安 式 方 滑 可Μ 而41 b vr 6 份 與部 6a軸 管於 套置 的設 6 皮 his係 夕 7 於簧 對彈 第 促 推 便Μ 上 縮 壓 向 朝 11 4 鈕 按 部彈 殻起縮 外凸壓 的 份簧 第 會6? ’ 管 份套 部於 1 4 狀 φ 份階壓 5, 彡 fe 形 0 起碟促 凸圓推 徑個被 直 一 ， 小的故 在處緣 ， 界 的 即邊力 亦間置 。之 鵂 側lb的 1T 7#( 外 徑 直 大 於尾 由的 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X 297公釐） 15 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（C:NS ) Λ4規格（210Χ297公釐.) A7 B7 五、發明説明（13 ) 端表面上，如圖1 4 ( b )中所顯示的情形，Μ將第二按鈕4 1 保持在其離開外殼6最突出的位置上。 利用此種設計，如圖1 3 ( a )與]3 ( b )所顯示的，若第二按 紐4 1未被按下，且觸發機2未被拉動，則第一大直徑凸起 部份4 1 b的階狀部份，便可Μ利用壓縮强簧7的偏置力，而 頂抵在外骹6的套管6 a之尾端表面上。在此種情況之下， 第一大直徑凸起部份4 1 b的外週緣衷面便會Μ —個分離的 空間而與第一孔部2 c形成對置。因此，直到小直徑部份 2 c 2被帶動到與第一大直徑凸起部份4 1 b的外週緣表面接觸 之前為止，第一孔部2 c相對於第一大直徑凸起部份4 1 b即 係為可K移_的，如圖1 4 ( a )與1 4 ( b )所顯示的>青形。換句 話說，觸發機2的拉動動作即可Μ進行。 當處於如圖1 4 ( a )與1 4 ( b )所顯示的狀態中時，觸發機2 已被拉動，使得觸發機拉動容許部份2c 2頂抵在第二按紐 4 1之第一大直徑凸起部份4 1 b的外週緣表面的部份之上。 當拉動觸發機2時，觸發機的突起23便會壓按主開關4的紐 5，Μ使電路形成閉路，因而使電氣動力工具的動作得K 啟動。附帶地，若觸發機2被釋放関，觸發機2便會由於與 主開關4相聯的壓縮彈簧（未顯示）的緣故而回到其原始位 置，使得動力工具的動作停止。 另一方面，若第二按紐4 1抵著壓縮彈簧7的偏置力而被 壓按下，而同時亦保持觸發機拉動的動作Μ便維持動力工 具的操作，則第二大直徑凸起部份4 1 c便會通過在第二壁 部2 Β的第二孔2 d處所形成的按紐通過部份2 ci’。接著，若 -16 - ----11-Γ — L.^II (請先閲讀背面之注意事項再填寫本頁)As shown in FIGS. 1 1 (a) and 1 1 (b), if the first button 3 1 is pressed until the rear end surface of the shaft portion 3 1 d is pressed against by the biasing force of the compression coil spring 7 At the bottom of the sleeve 6 b, the large-diameter convex portion 3 1 b of the first button 3 1 is separated from the first hole 2 c, and the small-diameter convex portion 3 1 a is brought relative to The first holes 2 c form opposed positions. Since the size of the small-diameter convex portion 3 1 a is set to cooperate with the small-diameter portion (the triggering portion of the triggering machine) 2 c 2, the triggering machine 2 can rotate around the axis of a pivot axis 3. Rotate a stroke S Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economy (please read the precautions on the back before filling this page) r until the small diameter part 2 c 2 is brought into the small diameter raised part 3 1 a The locations where the surface contact occurred, as shown in Figures 12 (a) and 1 2 (b). Therefore, the protrusion 2a of the trigger 2 will press the button 5 (Fig. 1) of the main switch 4 to close the circuit, and M will activate a driving motor (not shown). By pulling the trigger 2, the first wall 2 Λ at a position of the first hole 2 c enters between the rear end surface of the sleeve 6 a and the flange-shaped disc-shaped surface of the large-diameter convex portion b. Therefore, as long as the trigger 2 remains drawn, the pressure of the first button 3 1 is suitable for the Chinese national standard. CNS M standard (210X 297 cm) .9 A7-B7 V. Description of the invention (U) ~ M will be maintained. If the trigger 2 is released, the trigger 2 will be moved to its original position due to the biasing force of the spring (not shown) of the main switch 4. If the trigger 2M pivots and the large-diameter portion 2cl moved to the first hole 2c becomes substantially coaxial with the large-diameter convex portion 3 1 b, the large-diameter convex portion 3 1 b It can pass through the first hole 2 c, and the first button 3 1 can slide in the axial direction relative to the sleeve 6 a until the flange-shaped disc-shaped surface of the large-diameter convex portion 3 1 b is taped. To the position when it abuts against the trailing end surface of the sleeve 6a. As a result, the initial state shown in FIGS. 10 (a) and 10 (b) can be obtained. At this time, the trigger switch can be used as a safety switch. As mentioned above, if the first button 3 1 is combined with the shell 6 and M allows the trigger switch M to be used as a safety switch, the first raised portions 3 1 a and 3 of the first button 1 b only moves with the first hole 2 c of the trigger 2. The actions of the second button 41 * M and the trigger switch using the second button 41 will be described below with reference to FIGS. 8 and 13 to 15. When the second button 41 is combined with the shell 6 group r, the second button 41 can be adapted to the function of holding the trigger switch circuit. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) The second button 4 1 has a shaft portion 4 1 d as the central axis, and M and surrounds the central axis 4 1 d and concentrically arranged, integrally formed second raised portion In the case of phase M with the first button 31, the diameter of the shaft portion 41d is d5, which is slidably inserted into the sleeve 6b of the housing member 6B. The top of the shaft portion 4 1 d abuts against the bottom of the sleeve 6 b, and M defines the degree of compression of the second button 4 1. The second raised part has a raised part with a small diameter of 4 1 a, which is M. The size of the paper is applicable to the Chinese National Standard (CNS) Λ4 specification (2 丨 〇 × 2 () 7mm) 14 A7 B7 V. Description of the invention (12) Sliding mode is guided by the casing 6 a of the housing part 6 a plus M, and the first large-diameter convex portion 4 1 b is suitable for M space and is allowed to be pulled with the trigger. Portions 2 c 2 form opposites, M and g are two large-diameter raised portions 4 1 c, the diameter of which is larger than the diameter of the first large-diameter raised portion 4 1 b, and adapted to pass through the second raised portion 2 d through part 2 d ϋ, and can be connected to the button joint part 2 e with each other ^ with a straight bj, 1 4 parts 1 β 3 0 The button is pressed with a diameter as large as Γ 3 # d P '' Straight outside of this a 1 ο Γ} 4 diameters 卩 Straight 0 ^ convex 31 diameter straight small convex (please read the precautions on the back before filling this page) part 41 convex from the beginning Path 3 ΰ Straight part, most of the parts are straight and small. The diameter fidl is straight and small. The shape of the diameter is 31. According to its structure, a set of body linings and seeds are used together. The holes at the ends of the opposite shapes are straight b 1 4 copies. B- § The convex diameter is straight 1 and the same phase. The 41st interspersed portion loosens the convex loose diameter. Xu Zhirong is large and the second is the smallest. The external shape β, the diameter of the C 2 hole structure is large. The edge convex 1 kind 1 is the shape and the whole shape 1 end, the tail d spoon 2 — ba hole 41 one part RH ΛZ Ζ square small convex d4 diameter straight up this one ο d4 and is the system diameter Straight up the convex diameter 'Straight sophomore second. M hole second through access c3 can insert C 1X 4 copies * the Ministry of Economic Affairs Central Standards Bureau employee consumer cooperatives printed support machine printed touch road button press second and The machine's hair is in contact with its lit electric phase, the I 1 ES 4 button can be touched, and the X / J combination can be connected. The 41 b vr 6 parts and parts The 6a shaft tube is set on the sleeve. 6 skin his system 7 Pressing toward the 11 4 button, the shell shell retracts and bulges. The spring will be 6? 'The tube cover is in the shape of 1 4 φ and the pressure is 5, 彡 fe shape 0 from the disc to promote the convex circle. Straight one, the small reason is at the edge, the boundary force is also interposed. 1T 7 # on the left side lb (The outer diameter is larger than the tail. The paper size applies to the Chinese National Standard (CNS). Λ4 specification (210X 297 mm). 15 The paper is printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. Standard (C: NS) Λ4 specification (210 × 297 mm.) A7 B7 5. Description of the invention (13) On the end surface, as shown in Fig. 1 4 (b), M keeps the second button 4 1 at its Leave the most prominent position of the housing 6. With this design, as shown in Figures 1 3 (a) and 3 (b), if the second button 41 is not pressed and the trigger 2 is not pulled , The stepped portion of the first large-diameter convex portion 4 1 b can be pressed against the tail end surface of the sleeve 6 a of the outer sleeve 6 by using the biasing force of the compression spring 7. In this case, the outer periphery of the first large-diameter convex portion 4 1 b will be M-separated space opposite to the first hole portion 2 c. Therefore, until the small-diameter portion 2 c 2 is driven until it comes into contact with the outer peripheral surface of the first large-diameter convex portion 4 1 b, the first hole portion 2 c is relative to the first large-diameter The starting part 4 1 b is K-shiftable, as shown in Figures 4 (a) and 1 4 (b) > cyan. In other words, the trigger action of trigger 2 can be performed by M When in the state as shown in Figures 4 (a) and 1 4 (b), the trigger 2 has been pulled, so that the pull portion 2c 2 of the trigger is pushed against the second button 41 A large-diameter raised portion 4 1 b is above the outer peripheral surface portion of the trigger. When the trigger 2 is pulled, the protrusion 23 of the trigger will press the button 5 of the main switch 4, and the circuit will form a closed circuit. The electric power tool is activated to K. Incidentally, if the trigger 2 is released, the trigger 2 will return to its original position due to a compression spring (not shown) associated with the main switch 4, so that On the other hand, if the second button 41 is pressed and pressed against the biasing force of the compression spring 7 while maintaining the action M of the trigger to maintain the operation of the power tool, then The second large-diameter convex portion 4 1 c passes through the button passing portion 2 ci ′ formed at the second hole 2 d of the second wall portion 2 B. Then, if -16----- 11-Γ — L. ^ II (Please read the notes on the back before filling this page)
、1T 經濟部中央標準肩員工消費合作社印製 A7 B7 五、發明説明（14 ) 觸發機被釋放開，而同時保持壓按著第二按鈕4 1，則由於 設置在主開關4上的彈簧（未顯示）的偏置力的緣故，觸發 機2便會被推促回到此原始位置。不過，如圖1 5 U)、 1 5 ( b )與1 5 (c )所顯示的，在觸發機2回復行程的期間，按 鈕通過部份2 (J ’上所形成的階狀部份（按紐接合部份）2 e， 便會Μ鎖定的方式與第二大直徑凸起部份4 1 c接合在一起 。此種鎖定接合可Μ避免觸發機2進行其回復的動作，而 觸發機2即是被鎖定在拉住的狀態。因此，甚至當操作者 的手指釋放開觸發機2時，甯氣動力工具的操作仍能夠維 持進行。換句話說，雖然操作者的手指將觸發機2釋放開 ，但電路的閉路狀態仍然可Μ維持。 若保持的電路要被釋開，亦即，若觸發機2與外殼6之間 的鎖定接合要被解除，則觸發機2即可Μ再被拉動，Μ使 得在觸發機2的按紐通過部份2V之處所形成的按鈕接合部 份2 e，能夠由第二大直徑凸起部份4 1 c之處移開，Μ便按 鈕接合部份2 e能與之解除接合。接著，由於壓縮彈簧7的 偏置力的緣故，第二大直徑凸起部份4 1 c即被移過按鈕通 過部份2 d ’。因此，觸發機的鎖定狀態便可K解除。接著 ，第二按鈕4 1再沿軸線方向被朝外移動，直到第一大直徑 凸起部份4 1 b被帶至頂抵著葚管6 a的尾端面時為止。當操 作者的手指由觸發機2上釋放開時，觸發機2即被樞轉而由 紐5之處移開，並由於主開關彳上所設置的壓縮弾簧（未顯 示）的緣故而回到其原始位置。如此，電路即形成開路。 如前所述，若由於使用具有第二凸起部份4 1 a，4 1 b與 本紙張尺度'適用中國國家標準（CNS ) Λ4規格（210X297公修） 一 -17- --------11 -- (請先閱讀背面之注意事項再填寫本頁) 訂 9. A7 B7 \___ 五、發明説明（15 ) 41 c的第二按紐4 1，Μ容許觸發開關得Μ發生電路保持功 能的話，則第二按紐4 1的第一大直徑凸起部份4 1 b便與第 一凸起部份2 c的觸發機拉動容許部份2 c 2相聯動作，而第 二大直徑凸起部份4 1 c則與第二孔部2d相聯動作。 下面配合圖9與16至19說明第三按鈕51，Μ及採用第三 按紐5 1的觸發開關的相關動作。當第三按紐5 1與外殻6組 r 合在一起時，第三按紐5 1便可適於不只令觸發開關發生安 全開關的功能，亦可發生電路保持的功能。 如圖9中所顯示的，第三按鈕5 1具有作為中心軸用的一 個軸部份5 1 d，Μ及環繞著中心軸5 1 d而同心設置的，整體 成形的第三凸起部份。與第一按紐3 1 Μ及第二按鈕4 1相似 的情形，軸部份5 1 d之直徑為d 5，其係Μ可滑動方式插入 於外殻部件6 Β的套管6 b内。此外，中心軸5 1 d的頂端面係 可Μ頂抵於套管6 b的底部，Μ便界定第三按紐5 1的按壓長 度。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 第三.凸起部份包含有一個小直徑的凸起部份5 1 a，其係 Μ可滑動方式由外殻部件6 Λ的套管6 a接納，第一大直徑凸 起部份5 1 b，其與觸發機拉動避免部份2 c 1交互作用，Μ及 第二大直徑凸起部份5 1 c，其直徑大於第一大直徑凸起部 份5 1 b之直徑，並可Μ通過通過部份2 d ’，並可與按鈕接合 部份2 e互相接合。 與第一按紐31相丨W的情形.，小直徑凸起部份5 1 a係為一 種襯套式的構形，其直徑為dl。第一大直徑凸起部份5 1 b 具有一種凸緣形狀的構形，由小直徑凸起部份5 1 a的尾端 本紙張尺度適用中阀國家標準（CNS ) Λ4規格（2丨OX297公婕） 18 經濟部中央標準局員工消費合作社印製 A7 -. B7 五、發明説明（16 ) 部份朝外徑向突出。第一大直徑凸起部份5 1 b之直徑為d 2 ，其係等於第一按紐3 1的大直徑凸起部份3 1 b的直徑，使 得第一大直徑凸起部份51b能夠插入大直徑部份（觸發機拉 動避免部份）2 c 1中。亦即，第一大直徑凸‘起部份5 1 b之作 r 用係與第一按紐3 1的小直徑凸起部份3 1 a相對於第一孔部 2 c者相同。此外，第一大直徑凸起部份5 1 b的凸緣圓碟形 表面亦可Μ頂抵在套管6 a的尾端面上，如同圖1 6 ( b )中所 清楚顯示的情形。 第二大直徑凸起部份5 1 c係被設置於第一大直徑凸起部 份5 1 b的一端，並係與之一體成形而設置的。第二大直徑 凸起部份5 1 c具有凸緣形的構形，其直徑係等於第二按紐 4 1的第二大直徑凸起部份4 1 c的直徑。亦即，第二大直徑 凸起部份5 1 c係產生第二按紐4 1的第二大直徑凸起部份4 1 c 的功能。壓縮弾簧7係環繞著中心軸5 1 d而設置，其可推促 .第三按紐5 1朝向壓按方向的相反方向。 在操作時，如圖1 6 ( a )與1 6 ( b )中所顯示的，若第三按鈕 5 1未被按下，由於壓縮彈簧7的偏置力之作用，第一大直 徑凸起部份5 1 b的凸緣圓碟形表面即頂抵於套管6 a的尾端 面上。如此，第三按紐5 1即被定置於離開外殼6最突出的 位置上。在此種情況之下'第一大直徑凸起部份5 1 b係與 觸發機拉動避免部份2 c ]互為對置，因此，若觸發機2被拉 動，亦即，若2 c 1部份在圖1 6 ( a )中被向右移動，則觸發機 拉動遊免部份2 c 1便立.即與第一大直徑凸起部份5 1 b的外週 緣表面發生作用。如此，便可Μ遊免觸發機的拉動動作。 本紙張尺度適用中圃國家標準（CNS ) Λ4規格（2丨0X 297公釐） 1 η 一 I 9 一 ------I---I--- (請先閲讀背面之注意事項再填寫本頁) 訂 -9. 經濟部中央標準局負工消費合作社印製 A7 B7 五、發明説明（17 ) 因此，主開關4便不會被觸發機2的突起2 a所壓制（見圖1) ，以便維持電路的開路狀態。其結果，便可以避免電氣動 力工具的意外啟動，K免操作者受到未期待動作的傷害。 接著，若第三按紐5 1相對於壓縮彈簧7的偏置力而被壓 按下，第一大直徑凸起部份5 1 b即被移動通過第一孔部2 c ，使得小直徑凸起部份5 1 a被帶至與第一孔部2 c形成對置 的位置上。在此種情況之下，由於小直徑凸起部份5 1 a的 大小被設計成可與小直徑部份（觸發機拉動容許部份）2c 2 匹配，觸發機2便可Μ沿著圖1 7 ( a)中所顯示的行程S，Μ 樞轉方式繞著樞轉軸3而移動。如此，便可Μ提供圖1 8 ( a ) 、1 8 ( b )與1 8 ( c )中所顯示的狀想。利用觸發機2的拉動動 作，觸發機2的突起2 a會壓制主開關4的紐5，Μ使電路形 成閉路，因而啟動馬達的旋轉。利用拉動觸發機2，處於 繞著第一孔2 c的一個位置的第一壁2 Λ即被保持在套管6 a的 。因此，只要維持觸發機2的拉住動作，第三按鈕5 1的壓 下位置便可以維持。 若操作者的手指由觸發機2上釋放開，觸發機2便會由於 設置在主開關4上壓縮彈簧的偏置力的緣故，而由紐5處被 移開，並回到其原始位置上。若觸發機2第一孔部2 c的大 直徑部份2 c 1被移到與第三按紐5 1的第一大直徑凸起部份 5 1 b形成同心的位置，第三按紐5 1便可沿軸線方向朝外移 動，直到第一大直徑凸起部份51b的凸緣圓碟形表面頂抵 於套管6 a的尾端面上時為止。如此，輕發開關便可Μ發生 本紙張尺度適用中國國家標準（CNS ) Λ4規格（2丨OX297公釐） -ίρ ^1^1- nn m^i H9 I— d^» .-.if/ mt I (請先閲讀背面之注意事項再填寫本頁) 訂 20 A7 B7 五、發明説明（18 ) Γ 安全開關的功能，並回到其原始的位置上。 在另一方面，在圖1 8 ( a )、1 8 ( b )與1 8 ( c )中所顯示的觸 發機之拉動狀態中，若第三按紐5 1朝内頂著螺旋彈簧7的 偏置力而再被壓下，第二大直徑凸起部份51c便會移動通 過第二壁2 B的第二孔部2 d。接著，若操作者的手指由觸發 機2上釋放開，而同時則維持第三按鈕5 1的壓下，則觸發 機2便會由於設置在主開關4上彈簧（未顯示）的偏置力之故 ，而被推促回到其原始位置上。不過，如圖1 9 ( a )至1 9 ( c ) 所顯示的，在觸發機2回復行程的期間，按鈕通過部份2 (3 ’ 上所形成的階狀部份（按紐接合部份）2 e，便會Μ鎖定的方 式與第二大直徑凸起部份5 1 c接合在一起。此種鎖定接合 可Μ遊免觸發機2進行其回復的動作，而觸發機2即是被鎖 定在拉住的狀態。因此，甚至當操作者的手指釋放開觸發 機2時，電氣動力工具的操作仍能夠維持進行。換句話說 ，雖然操作者的手指將觸發機2釋放開，但電路的閉路狀 態仍然可以維持。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 若保持的電路要被釋開，亦即，若觸發機2與外殼6之間 .的鎖定接合要被解除，則觸發機2即可Μ再被拉動· Μ使 得在觸發機2的按紐通過部份2 d ϋ之處所形成的按紐接合部 份2 e，能夠由第二大直徑凸起部份5 1 c之處移開。接著， 由於壓縮彈簧7的偏置力的緣故，第二大直徑凸起部份5 1 c 即被移過按紐通過部份2 d ’。因此，觸發機的鎖定狀態使 可Μ解除。接著，第三按紐5 1再沿軸線方向被朝外移動， 直到第一大直徑凸起部份5 1 b被帶至頂抵著套管6 a的尾端 本紙張尺度適用中國國家標卒（CNS ) Λ4規格（2I0X 297公趁） r - 21 - A7 B7 五、發明説明（19 ) 經濟部中央標準局員工消費合作社印製 面時為止。當操作者的手指由觸發機2上釋放開時，觸發 機2即被樞轉而由鈕5之處移開，並由於主開關4上所設置 的壓縮强簧（未顯示）的緣故而回到其原始位置。如此，電 路即形成開路。 如前所述，若由於使用第三按紐5 ].而使觸發開關產生電 路保持功能Μ及安全開關功能的話，則構成第三凸起部份 的凸起部份5 1 a、5 1 b與5 1 c便需與第一與第二孔部2 c與2 d 相聯動作。 ' 圖2 0中顯示第一具體例的一種修改。在第一具體例之中 ，觸發機2與主開關4係互相分離開而設置，並係各自被連 接至外殼6上。不過，在此修改的實例之中，觸發機2係利 用L形的支持部件7而Μ可樞轉的方式由主開關4加以支持 的。亦即，支持部件7的一端係被固定於主開關4上，而支 持部件7的另一端則Μ可樞轉方式，利用一樞轉軸Μ來支 持觸發機2。如此建構起來的觸發機主開關單元便可組裝 在外殻β之中。 雖然本發明已參考特定具體例詳细說明如上，但習於本 技藝之士皆可瞭解，其多種的變化與修改仍應屬於本發明 的精神範疇之内。 --------,--— ! (請先閲讀背面之注意事項再填寫本頁) -a 本紙張尺度適用中阀國家標卒（CNS ) Λ4規格（210Χ 297公t ) 22 -1, 1T printed by the Central Standard Shoulder Employee Consumer Cooperative of the Ministry of Economic Affairs A7 B7 V. Description of the invention (14) The trigger was released while keeping the second button 41 pressed, due to the spring provided on the main switch 4 ( Due to the biasing force (not shown), trigger 2 will be pushed back to this original position. However, as shown in Figs. 1 5 U), 1 5 (b), and 1 5 (c), during the return stroke of trigger 2, the button passes through the stepped portion formed on part 2 (J '( Button joint part) 2 e, it will be locked together with the second large-diameter convex part 4 1 c. This lock engagement can prevent trigger 2 from performing its recovery action, and the trigger 2 is locked in the pulled state. Therefore, even when the operator's finger releases the trigger 2, the operation of the Ningqi power tool can be maintained. In other words, although the operator's finger will trigger the trigger Released, but the closed-circuit state of the circuit can still be maintained. If the held circuit is to be released, that is, if the lock engagement between the trigger 2 and the casing 6 is to be released, the trigger 2 can be reset again. Pulling, M makes the button joint part 2 e formed where the button of the trigger 2 passes through part 2V can be removed from the second large diameter convex part 4 1 c, and the button joint part 2 e can be disengaged. Next, due to the biasing force of the compression spring 7, the second largest diameter The raised portion 4 1 c is moved through the button and passes through the portion 2 d '. Therefore, the lock state of the trigger can be released by K. Then, the second button 4 1 is moved outward along the axis direction until the first The large-diameter convex portion 4 1 b is brought up to abut the tail end surface of the stern tube 6 a. When the operator's finger is released from the trigger 2, the trigger 2 is pivoted and the button 5 Place, and return to its original position due to the compression coil spring (not shown) provided on the main switch 彳. In this way, the circuit forms an open circuit. As mentioned above, if a second protrusion is used due to the use Part 4 1 a, 4 1 b and this paper size 'apply Chinese National Standard (CNS) Λ4 specification (210X297 public repair) I-17- -------- 11-(Please read the note on the back first Please fill in this page again) Order 9. A7 B7 \ ___ V. Description of the invention (15) 41 Second button 41 of c, Μ allows the trigger switch to obtain the circuit holding function of Μ, then the second button 4 1 The first large-diameter convex portion 4 1 b is associated with the trigger of the first convex portion 2 c to pull the permissible portion 2 c 2, and the second large-diameter convex portion operates. Part 4 1 c is associated with the second hole 2d. The following describes the related actions of the third button 51, M and the trigger switch using the third button 51 in conjunction with FIGS. 9 and 16 to 19. When the third button When the button 51 is combined with the 6 groups r of the shell, the third button 51 can be suitable for not only the function of triggering the safety switch, but also the function of holding the circuit. As shown in Figure 9, The third button 51 has a shaft portion 5 1 d, M as a central axis, and a third convex portion integrally formed around the central axis 5 1 d. Similar to the first button 3 1 M and the second button 41, the diameter of the shaft portion 5 1 d is d 5, which is slidably inserted into the sleeve 6 b of the housing member 6 Β. In addition, the top surface of the central axis 5 1 d can be pressed against the bottom of the sleeve 6 b, and M defines the pressing length of the third button 51. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) Third. The raised part contains a small diameter raised part 5 1 a, which is a sliding type Received by the casing 6 a of the housing part 6 Λ, the first large-diameter convex portion 5 1 b, which interacts with the trigger pulling portion 2 c 1, and M and the second large-diameter convex portion 5 1 c, whose diameter is larger than the diameter of the first large-diameter convex portion 5 1 b, and can pass through the passing portion 2 d ′, and can be mutually joined with the button engaging portion 2 e. In the case of the first button 31 and W, the small-diameter raised portion 5 1 a is a bush-type configuration, and its diameter is dl. The first large-diameter convex portion 5 1 b has a flange-shaped configuration. The tail end of the small-diameter convex portion 5 1 a is applicable to the national valve standard (CNS) Λ4 specification (2 丨 OX297 of the paper size). (Gong Jie) 18 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs A7-. B7 V. Description of Invention (16) The part protrudes radially outward. The diameter of the first large-diameter convex portion 5 1 b is d 2, which is equal to the diameter of the large-diameter convex portion 3 1 b of the first button 3 1, so that the first large-diameter convex portion 51 b can Insert the large diameter part (the trigger avoidance part of the trigger) 2 c 1. That is, the function r of the first large-diameter convex portion ′ rising portion 5 1 b is the same as that of the small-diameter convex portion 3 1 a of the first button 3 1 with respect to the first hole portion 2 c. In addition, the flange-shaped disc-shaped surface of the first large-diameter convex portion 5 1 b can also abut against the rear end surface of the sleeve 6 a, as is clearly shown in FIG. 16 (b). The second large-diameter convex portion 5 1 c is provided at one end of the first large-diameter convex portion 5 1 b, and is formed by being formed integrally with one body. The second large-diameter convex portion 5 1 c has a flange-shaped configuration, and its diameter is equal to the diameter of the second large-diameter convex portion 4 1 c of the second button 41. That is, the second large-diameter convex portion 5 1 c functions to generate the second large-diameter convex portion 4 1 c of the second button 41. The compression coil spring 7 is arranged around the central axis 5 1 d, and it can be pushed. The third button 5 1 is opposite to the pressing direction. During operation, as shown in FIGS. 16 (a) and 16 (b), if the third button 51 is not pressed, the first large-diameter protrusion is caused by the biasing force of the compression spring 7. The flanged disc-shaped surface of the portion 5 1 b abuts against the trailing end surface of the sleeve 6 a. In this way, the third button 51 is set to the most prominent position away from the casing 6. In this case, 'the first large-diameter convex portion 5 1 b is opposite to the trigger pulling portion 2 c], so if the trigger 2 is pulled, that is, if 2 c 1 A part is moved to the right in FIG. 16 (a), and the trigger pulls the part 2c1 to stand. That is, it interacts with the outer peripheral surface of the first large-diameter raised part 5 1b. In this way, the M game can be pulled without the trigger of the trigger. This paper size applies to China National Standard (CNS) Λ4 specification (2 丨 0X 297 mm) 1 η One I 9 One ------ I --- I --- (Please read the precautions on the back before (Fill in this page) No. -9. Printed by A7 B7 of the Central Standard Bureau of the Ministry of Economic Affairs and Consumer Cooperatives V. Description of the invention (17) Therefore, the main switch 4 will not be suppressed by the protrusion 2 a of the trigger 2 (see Figure 1) ) To keep the circuit open. As a result, accidental activation of the electric power tool can be avoided, and the operator can be prevented from being injured by unexpected movements. Next, if the third button 5 1 is pressed against the biasing force of the compression spring 7, the first large-diameter convex portion 5 1 b is moved through the first hole portion 2 c so that the small-diameter convex The rising portion 5 1 a is brought to a position opposed to the first hole portion 2 c. In this case, since the size of the small-diameter raised portion 5 1 a is designed to match the small-diameter portion (the trigger-pull-permissible portion) 2c 2, the trigger 2 can follow FIG. 1 The stroke S, M shown in 7 (a) is pivoted about the pivot axis 3 to move. In this way, it is possible to provide the states shown in FIGS. 18 (a), 18 (b), and 18 (c). With the pulling action of the trigger machine 2, the protrusion 2a of the trigger machine 2 will suppress the button 5 of the main switch 4, and the circuit will be closed by M, thus starting the rotation of the motor. By pulling the trigger 2, the first wall 2 Λ at a position around the first hole 2 c is held in the sleeve 6 a. Therefore, as long as the pulling action of the trigger 2 is maintained, the depressed position of the third button 51 can be maintained. If the operator's finger is released from the trigger 2, the trigger 2 will be removed from the button 5 and returned to its original position due to the biasing force of the compression spring provided on the main switch 4. . If the large-diameter portion 2 c 1 of the first hole portion 2 c of the trigger 2 is moved to a position concentric with the first large-diameter convex portion 5 1 b of the third button 5 1, the third button 5 1 can be moved outward in the axial direction until the flange-shaped disc-shaped surface of the first large-diameter convex portion 51b abuts on the rear end surface of the sleeve 6a. In this way, the light switch can be generated. The paper size applies the Chinese National Standard (CNS) Λ4 specification (2 丨 OX297 mm) -ίρ ^ 1 ^ 1- nn m ^ i H9 I— d ^ ».-. If / mt I (Please read the precautions on the back before filling this page) Order 20 A7 B7 V. Description of the invention (18) Γ The function of the safety switch and return to its original position. On the other hand, in the pulling state of the trigger shown in Figs. 18 (a), 18 (b), and 18 (c), if the third button 5 1 faces inwardly of the coil spring 7 When the biasing force is pressed again, the second large-diameter convex portion 51c moves through the second hole portion 2d of the second wall 2B. Next, if the operator's finger is released from the trigger 2 while maintaining the depression of the third button 51, the trigger 2 will be biased by a spring (not shown) provided on the main switch 4. It was pushed back to its original position. However, as shown in Figs. 19 (a) to 19 (c), during the return stroke of trigger 2, the button passes through the stepped part (button joint part formed on part 2 (3 ')). ) 2 e, it will be joined with the second large-diameter convex portion 5 1 c in the manner of M lock. This lock engagement can prevent the trigger machine 2 from performing its recovery action, and the trigger machine 2 is locked. In the state of being pulled. Therefore, even when the operator's finger releases the trigger 2, the operation of the electric power tool can be maintained. In other words, although the operator's finger releases the trigger 2, the circuit's Closed circuit status can still be maintained. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page). If the held circuit is to be released, that is, if the trigger 2 and the housing 6 . If the locked joint is to be released, the trigger 2 can be pulled again. Μ makes the button joint 2 e formed at the position where the button of the trigger 2 passes through part 2 d 能够 can be changed by the second The large diameter raised portion 5 1 c is removed. Then, because Due to the biasing force of the contraction spring 7, the second large-diameter convex portion 5 1 c is moved through the button passage portion 2 d ′. Therefore, the lock state of the trigger mechanism can be released. Then, the third The button 5 1 is then moved outward in the axis direction until the first large-diameter convex portion 5 1 b is brought against the tail end of the sleeve 6 a. The paper size is applicable to the Chinese national standard (CNS) Λ4 Specifications (2I0X 297 hours) r-21-A7 B7 V. Description of the invention (19) Until the printing of noodles by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. When the operator's finger is released from the trigger 2, the trigger 2 is pivoted and moved away from the button 5, and returns to its original position due to a compression spring (not shown) provided on the main switch 4. In this way, the circuit forms an open circuit. As mentioned earlier If the trigger switch generates the circuit holding function M and the safety switch function due to the use of the third button 5], the raised portions 5 1 a, 5 1 b, and 5 1 c that constitute the third raised portion It is necessary to act in conjunction with the first and second hole portions 2 c and 2 d. 'Fig. 20 shows a modification of the first specific example In the first specific example, the trigger 2 and the main switch 4 are provided separately from each other, and are respectively connected to the housing 6. However, in this modified example, the trigger 2 uses an L-shape The pivoting manner of the supporting part 7 is supported by the main switch 4. That is, one end of the supporting part 7 is fixed to the main switch 4, and the other end of the supporting part 7 is pivotable. A pivot axis M is used to support the trigger 2. The trigger main switch unit constructed in this way can be assembled in the housing β. Although the present invention has been described in detail above with reference to specific examples, it is well understood by those skilled in the art It can be understood that various changes and modifications should still fall within the spirit of the present invention. --------, ---! (Please read the precautions on the back before filling out this page) -a This paper size is applicable to the national valve (CNS) Λ4 specification of the valve (210 × 297 g t) 22-