200936321 九、發明說明： 【發明所屬之技術領域】 本發__-種扭力扳手，義是指—種具有電磁力跳脫 構件之數位式扭力扳手。 【先前技術】 傳統之扭力扳手係包含—扳手頭部…扳手套管、—跳脫機 構及-調_構。其巾該雖機構包含-調整獅及—彈性元 件；該扳手套管呈中空長管狀；該跳脫機構及該彈性元件容置於 該扳手套管内，且該調整螺絲組設於該扳手套管一端相接該彈性 元件，該扳手套管一端與該扳手頭部相接。 使用者欲使肋扭力扳手時，可域旋轉賴顏構改變該 彈性元件之長度使該跳脫機構具有預設扭力。當該扭力扳手的操 作扭力未達該預設扭力時，該跳脫機構與該扳手頭不會產生跳脫 動作’所以該扭力扳手可以正常操作；當該扭力扳手的操作扭力 ❹達該預設扭力時，該跳脫機構產生跳脫動作，使得該板手頭具有 擺動的能力，所以該扭力扳手無法正常操作。 以上之先前技術雖然能夠使該扭力扳手具有扭力設定及跳脱 '的功能，但該跳脫機構為連桿式機構，且調整方式為機械式，所 以容易產生以下缺點·· 1·該扭力扳手使用-段_後，鄉性元件會產生老化、變 形或彈性疲勞，所以扭力賴定會不準；使时，會造成使用者 200936321 所作用的操作扭力與預設扭力不符合。 2.由於跳脫機構為連桿式且藉由機械方式進行扭力設定，所以 結構較為複雜且操作方式不方便。 【發明内容】 由於先前技術所揭露之㈣扳手會造成操作扭力與預設扭力 不符，以及跳脫機構複雜操作不方便等缺點，所以本發日月提供一 外種鑛的·式扭力扳手，以顧先馳術賴點。 本發明之一目的係在於提供一種數位式扭力扳手（四），其具 有使預設扭力值與操作扭力更能相符，且當預設扭力值與操作扭 力更相符時能夠立即產生自動跳脫的功效。 H㈣—目_在於提供-錄位式扭力扳手㈤，其具 有能夠提供更精簡的結構及更方便的操作方式。 根縣發餐目的’該數位紐力扳手(四）係包含一本體； 板手頭配设於該本體内；至少一應變感應器配設於該板手頭； -電磁力機構具有-鋪裝置連接該扳手頭端部 ，以及一電磁鐵 組設於該本體内且相對該控制裝置；當該電磁力機構之該控制裝 置與該電賴相料’則關該板手頭#該電磁力裝置之 該控制裝置與該電磁鐵未吸著，則無限制該扳手頭擺動。 此外’數位式扭力扳手(四），更包含一扭力設定裝置配設於該 本體，該扭力設定裝置用以提供扭力值設定且與該應變感應器電 連接。 200936321 根據本發明的實施，可以提供電磁式的跳脫機構所以結構 精簡，又以數位方式設定預設扭力，所以設定方法簡便快速，據 此有效解決先前技術所揭示之扭力扳手的缺點。 - 以下即再依本發明之目的、功效及結構組態，舉一較佳實施 例並配合圖示詳細說明。 【實施方式】 请參閱第1圖，圖中揭露一數位式扭力扳手1〇係包含一本體 © 20，扳手頭3〇組設於該本體2〇—端，一扭力設定裝置奶及一 顯示裝置50組設於該本體20。其中該本體2〇為一中空管狀，該 扳手頭30具有一頭部32及一應變段34延伸自該頭部32且容置 '於該本體20内。 請參閱第2圖，係為本發明之第一實施例。該數位扭力扳手 10又包含至少一應變感應器60配設於該板手頭3〇之應變段34， 以提供應變量的感測。而本實施例揭霧二個應變感應器60分別配 〇設於該應變段34兩側。此外，應變感應器的配置數量可以是一或 四個。然而，上述應變感應器的配置數量係為舉例說明，並非依 此為限。 一電磁力機構70包含一控制裝置72及一電磁鐵74且組設在 該本體20内。該控制裝置72連接該應變段34端部，該電磁鐵 74相對該控制裝置72 ^又該控制裝置72包含一第一控制元件 721及一第二控制元件722 ’其中該第一控制元件721為錐形塊 200936321 當該紐式扭力扳手10通電後，該f磁力觸70即產生電 磁性’該電磁鐵74會吸_制裝置72之該第二控制元件722， 使得該第二控制元件722朝向該電磁鐵？4活動，且該第二控制元 件722位移嗎著該第—控制元件721。如此，因為該第二控制 元件722與該電磁鐵74吸著，且該第—控制元件721被該第二控 〇制元件722壓制著，所以該控制裝置72可以限制該板手頭3〇擺 動0 請參閲第3圖’當該數位式扭力扳手1〇的操作扭力與預設扭 歷經由-比較器66比較，且該操作扭力已達到預設扭力值後，電 力不進入該電磁力機構70，該控制裝置72之該第二控制元件722 與該電磁鐵74不吸著，則無限制該扳手頭3〇擺動。 請參閱第4圖所示’係為本發明之第二實施例。該數位式扭 0力扳手10係包含本艘20、扳手頭30、扭力設定裝置4〇、顯示裝 置50、比較器66及電磁機構80，其中該本體20、該扳手頭3〇、 該扭力设定裝置40、該顯示裝置50及該比較器66的構造及空間 組態皆與第一實施例相當。 本實施例與前實施例的不同在於:該電磁力機構8〇包含一控 制裝置82及一電磁鐵74且組没在該本體20内，其中該控制裝詈 82連接該應變段34端部，該電磁鐵74相對該控制裝置82。該控 200936321 桿體821*—輸22 ’其巾着體821與該塊 、、σ且該#體821組設於該應變段34端部，該塊體822 相對該電磁鐵74。 备該數位式扭力扳手1〇通電後，該電磁力機構即產生電 磁^，使該電磁鐵74吸住該控制裝置82之塊體822，如此-來， ^杯體821便不能擺動，且該扳手頭3〇與該桿體奶結合所以 灼該扳手頭30受限制而無法相對該本體2〇蓋生擺動。 ❹ 請參閱第5圖’當該數位式扭力扳手㈣操作扭力與預設扭 力經由該比較器66比較，且該操作扭力已_預設扭力值後，電 力不進人該電磁力機構8Q，使其形成電磁性消失陳態，該控制 裝置82之塊體822與該電磁鐵74未吸著，如此則無限制該板手 頭30擺動。 請參閱第6圖’本發明又一實施例係適用於具有單一定扭力 功能的扭力鮮90。雜力板手9()雜含_板手頭92組設在— ❹本體94 一端，且該扭力扳手90出廠時已被設定僅具有提供單一 預設扭力值的功能。又本實施例所揭露的電磁力機構可以包含前 述各實施例甲的電磁力機構，而圖中僅以電磁力機構7〇為例說明。 該扭力板手90的使用與前述各實施例相同，即電磁力機構％ 產生磁力作用’則該扳手頭92的擺動受限制；當該扭力扳手9〇 的操作扭力與預設扭力經由該比較器66比較，且該操作扭力已達 到預設扭力值後，則電磁性消失使得該扳手頭92可擺動。 200936321 根據以上實施例的說明，本發明具有下述之優點： 第本發明是以利用電磁力裝置作為自動跳脫機構，相較 於習用以金屬元件加工製得連桿式跳脫麟，本發明的結構較為 精簡此外’電磁力裝置可以免去元件的老化及變形問題，所以 跳脫的精準度更高。 第二、本發有扭力設定裝置雜使时快速簡易地設定 預設扭力值，所以操作更加簡便。 、 以上乃本發明之較佳實施例以及設計圖式，惟較佳實施例以 及設計圖式僅是舉例說明，並非用於限制本發明技藝之權利範 圍，凡以均等之技藝手段、或為下述「申請專利範圍」内容所涵 蓋之權利範圍而實施者，均不脫離本發明之範疇而為申請人之權 利範圍。 【圖式簡單說明】 Ο 第1圖係本發明之外觀圖。 第2圖係為本發明之第一實施例之示意圖之一。 第3圖係為本發明之第一實施例之示意圖之二。 第4圖係為本發明之第二實施例之示意圖之一。 第5圖係為本發明之第二實施例之示意圖之二。 第6圖係為本發明之第三實施例之示意圖。 200936321 【主要元件符號說明】 數位式扭力扳手10、90 本體20、94 扳手頭30、92 頭部32 應變段34 扭力設定裝置40 〇 顯示裝置50 應變感應器60 比較器66 電磁力機構70、80 控制裝置72、82 電磁鐵74 第一控制元件721 ❹ 第二控制元件722 桿體821 塊體822200936321 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a digital torque wrench having an electromagnetic force tripping member. [Prior Art] A conventional torque wrench includes a wrench head... a wrench sleeve, a jump offline structure, and a - adjustment structure. The mechanism includes a lion and an elastic member; the wrench sleeve has a hollow long tubular shape; the trip mechanism and the elastic member are received in the wrench sleeve, and the adjusting screw is assembled on the wrench sleeve The elastic member is connected to one end, and one end of the wrench sleeve is in contact with the wrench head. When the user wants to make the rib torque wrench, the length of the elastic member can be changed by the field rotation to make the trip mechanism have a predetermined torque. When the operating torque of the torque wrench does not reach the preset torque, the tripping mechanism and the wrench head do not generate a tripping action. Therefore, the torque wrench can be operated normally; when the operating torque of the torque wrench reaches the preset When the torque is applied, the tripping mechanism generates a tripping action, so that the hand of the board has the ability to swing, so the torque wrench cannot operate normally. Although the above prior art can provide the torque wrench with the function of torque setting and tripping, the trip mechanism is a link type mechanism, and the adjustment mode is mechanical, so the following disadvantages are easily generated. 1. The torque wrench After using - segment _, the home-made components will produce aging, deformation or elastic fatigue, so the torque will be inaccurate; when it occurs, the operating torque of the user 200936321 will not match the preset torque. 2. Since the tripping mechanism is a link type and the torque is set by mechanical means, the structure is complicated and the operation mode is inconvenient. SUMMARY OF THE INVENTION According to the prior art, (4) the wrench will cause the operating torque to be inconsistent with the preset torque, and the complicated operation of the tripping mechanism is inconvenient, so the present invention provides an external type of torque wrench. Gu Xianchi relies on it. An object of the present invention is to provide a digital torque wrench (4) which has a preset torque value which is more consistent with an operating torque, and which can automatically generate an automatic trip when the preset torque value is more consistent with the operating torque. efficacy. H (4) - Mesh - is provided with a - position type torque wrench (5), which has a more compact structure and a more convenient operation. Root County meal purpose 'The digital force wrench (4) includes a body; the board is hand-fitted in the body; at least one strain sensor is disposed on the board; - the electromagnetic force mechanism has a - paving device connection The end portion of the wrench head and an electromagnet group are disposed in the body and opposite to the control device; when the control device of the electromagnetic force mechanism is in contact with the electric device, the control is performed on the hand of the plate. If the device and the electromagnet are not sucked, the wrench head is not limited to swing. Further, the 'digital torque wrench (4) further includes a torque setting device disposed on the body, the torque setting device for providing a torque value setting and electrically connecting to the strain sensor. According to the implementation of the present invention, an electromagnetic type tripping mechanism can be provided, so that the structure is simplified, and the preset torque is set in a digital manner. Therefore, the setting method is simple and rapid, thereby effectively solving the disadvantages of the torque wrench disclosed in the prior art. - The following is a further preferred embodiment of the present invention in accordance with the purpose, function and structural configuration of the present invention. [Embodiment] Please refer to FIG. 1 , which discloses a digital torque wrench 1 comprising a body © 20 , a wrench head 3 〇 is disposed at the end of the body 2 , a torque setting device milk and a display device 50 sets are provided on the body 20. The body 2 is a hollow tubular body. The wrench head 30 has a head 32 and a strain section 34 extending from the head 32 and housed in the body 20. Please refer to Fig. 2, which is a first embodiment of the present invention. The digital torque wrench 10 further includes at least one strain sensor 60 disposed on the strain section 34 of the plate at the hand 3 to provide sensing of the strain amount. In this embodiment, the two strain sensors 60 are respectively disposed on both sides of the strain section 34. In addition, the number of strain sensors can be one or four. However, the number of configurations of the above strain sensors is exemplified and is not limited thereto. An electromagnetic force mechanism 70 includes a control device 72 and an electromagnet 74 and is disposed within the body 20. The control device 72 is connected to the end of the strain section 34. The electromagnet 74 is opposite to the control device 72. The control device 72 further includes a first control element 721 and a second control element 722 '. The first control element 721 is Tapered block 200936321 When the neo-type torque wrench 10 is energized, the f-magnetic contact 70 generates electromagneticity. The electromagnet 74 will suck the second control element 722 of the device 72 such that the second control element 722 is oriented. The electromagnet? 4 activity, and the second control element 722 is displaced by the first control element 721. Thus, since the second control element 722 and the electromagnet 74 are attracted, and the first control element 721 is pressed by the second control element 722, the control device 72 can limit the swing of the board at hand 3 Please refer to FIG. 3 'When the operating torque of the digital torque wrench 1〇 is compared with the preset torque through the comparator 66, and the operating torque has reached the preset torque value, the electric power does not enter the electromagnetic force mechanism 70. If the second control element 722 of the control device 72 and the electromagnet 74 are not sucked, the wrench head 3 is not restricted from swinging. Please refer to Fig. 4, which is a second embodiment of the present invention. The digital torque wrench 10 includes a ship 20, a wrench head 30, a torque setting device 4, a display device 50, a comparator 66, and an electromagnetic mechanism 80. The body 20, the wrench head 3〇, the torque device The configuration and spatial configuration of the fixed device 40, the display device 50, and the comparator 66 are comparable to those of the first embodiment. The difference between the present embodiment and the previous embodiment is that the electromagnetic force mechanism 8 includes a control device 82 and an electromagnet 74 and is not disposed in the body 20, wherein the control device 82 is connected to the end of the strain segment 34. The electromagnet 74 is opposite the control device 82. The control body 200903221 rod 821*-transmission 22'' towel body 821 and the block, σ and the # body 821 are disposed at the end of the strain section 34, and the block 822 is opposed to the electromagnet 74. After the digital torque wrench is energized, the electromagnetic force mechanism generates an electromagnetic force, so that the electromagnet 74 attracts the block 822 of the control device 82, so that the cup body 821 cannot swing, and The wrench head 3〇 is combined with the body milk so that the wrench head 30 is restrained from swinging relative to the body 2 cover. ❹ Refer to Figure 5 'When the digital torque wrench (4) operating torque is compared with the preset torque via the comparator 66, and the operating torque has been _ preset torque value, the power does not enter the electromagnetic force mechanism 8Q, so that It forms an electromagnetic disappearance state, and the block 822 of the control device 82 and the electromagnet 74 are not sucked, so that the plate hand 30 is not oscillated. Please refer to Fig. 6. Another embodiment of the present invention is applicable to a torque 90 having a single torque function. The multi-purpose wrench 9 () miscellaneous _ plate hand 92 is set at the end of the ❹ body 94, and the torque wrench 90 has been set to have only a single preset torque value. Further, the electromagnetic force mechanism disclosed in the embodiment may include the electromagnetic force mechanism of the foregoing embodiment A, and only the electromagnetic force mechanism 7 is used as an example for illustration. The use of the torsion wrench 90 is the same as in the previous embodiments, that is, the electromagnetic force mechanism generates a magnetic force', and the swing of the wrench head 92 is restricted; when the torque of the torque wrench 9 is operated and the preset torque is passed through the comparator 66, and after the operating torque has reached the preset torque value, the electromagnetic force disappears so that the wrench head 92 can swing. 200936321 According to the description of the above embodiments, the present invention has the following advantages: The first invention is an automatic tripping mechanism using an electromagnetic force device, and the link type jumper is obtained by processing the metal component. The structure is more streamlined. In addition, the 'electromagnetic force device can eliminate the aging and deformation of components, so the accuracy of tripping is higher. Secondly, when the torque setting device is used, the preset torque value is set quickly and easily, so the operation is simpler. The above is a preferred embodiment and a design of the present invention, but the preferred embodiments and the design drawings are merely illustrative and are not intended to limit the scope of the present invention. The scope of the rights covered by the contents of the "Scope of Patent Application" is not intended to be within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external view of the present invention. Figure 2 is one of the schematic views of the first embodiment of the present invention. Figure 3 is a second schematic view of the first embodiment of the present invention. Figure 4 is a schematic view of a second embodiment of the present invention. Figure 5 is a second schematic view of a second embodiment of the present invention. Figure 6 is a schematic view of a third embodiment of the present invention. 200936321 [Description of main components] Digital torque wrench 10, 90 Body 20, 94 Wrench head 30, 92 Head 32 Strain section 34 Torque setting device 40 〇 Display device 50 Strain sensor 60 Comparator 66 Electromagnetic force mechanism 70, 80 Control device 72, 82 electromagnet 74 first control element 721 ❹ second control element 722 rod 821 block 822