201014681 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種可空轉回拉往復操作之開口快速扳手， 尤其是一種從夹持工作物w的位罝空轉回拉時，操作者可 獲得「一次到位」的平順操作觸感的開口快速扳手。 【先前技術】 開口快速扳手，是結合傳統開口扳手與棘輪扳手可空轉 回拉往復操作優點的改良手工具，使用時甚為方便，在過 去已累積相當程度之改良技術。舉例而言，中華民國專利 公告第228757號（「可單向旋進之棘爪式扳手構造」）；公 告第278060號（「齒嚆式回轉扳手」）；公告第327619號、 US553期（W09615879) (「棘輪式板手及以棘輪式板:轉 動一個可轉元件之方法」）；公告第M31〇772(「可單向作 動之開口扳手」）等專利案；及其他國家如美國 US7111529、US7077035、US3165015專利案。另外，活動 扳手亦有類似之往復操作機構，如中華民國專利公告第 5〇15丨5(具有棘輪扳手功能之活動扳手）、及川叫滾輪式 可逆活動扳手)專利案、美國US7〇1〇999、中華民國專利： 告 262313、美國 口82,879,681 等。 么 專利公告第228757號揭露之開口扳手，利用設於開口驅 動部兩側夾顎中之「與驅動彈簧同向運動」之一對可縮爪/ 顎（卡齒2,3)，使扳手可達到可空轉回拉往復操作之功效二 此一結構中’可縮爪，（2,3)是沿著彈簧推動方向前 移動，以在扳手順時針操作時旋緊螺絲、並在逆時針 144487.doc 201014681 空轉回拉◎然而，由於扳手旋緊（或旋鬆）螺絲時，需仰賴 螺絲抵緊可縮爪時由可縮爪提供之反作用力，此種運作方 式之扳手之可縮爪/顎（2,3)雖提供有齒狀面與螺絲接觸， 以提供反作用力；然而，一方面因反作用力的方向僅在齒 狀面上產生分力（齒狀面整體上與螺絲接間之接觸面並非 呈90度）、齒狀結構使用久後會產生磨損等因素，而直接 景y響旋緊/旋鬆的操作性能；另一方面，扳手開口部的尺 寸與實際螺帽尺寸有差異，而可縮爪/顎（2,3)於操作過程 中卻又會前後移動並有累進磨損之情形，容易產生咬合上 的誤差。此種扳手使用上並不方便。 專利公告第327619號、US5533428(W09615879)等案略 為改善了前述缺點，其主要方式是使用「與驅動彈簧同向 運動」之單一可縮爪/顎i5、並針對扳手開口部之結構進 行改良一亦即’其界定可縮爪15具有一第二嚙合面14，其 平行於第一爪11上的第一嚙合面13。然而，此一結構在空 轉回拉時運作並不順利。其一原因在於，螺帽6〇鄰近可縮 爪15的一個側面角75，很容易絆住可縮爪15而阻擋回拉的 行程。即使該專利中提供倒角邊16，試圖減少此一問題， 仍不能全面避免。而且’由於扳手開口部的結構複雜、尺 寸較螺帽尺寸大，不但扳手重量隨著尺寸增加，旋緊/旋 鬆螺絲、與空轉回拉的兩個相反方向操作之間，必需反覆 歷經多次移動測試，以尋求較佳施力點，此將耗費操作時 間’對專業使用者而言，甚為不便。 前述或其他類似問題存在於各種仰賴「與驅動彈簧同向 144487.doc 201014681 運動之可縮爪」之扳手中；例如，中華民國專利公告第 M310772 號、US3，165,015、US7,077,035、US7，111，529 等。此種扳手的另一普遍問題是··旋緊/旋鬆彈簧時，彈 簧與可縮爪/顎直接承受巨大扭力，不利於使用壽命。 中華民國專利公告第501515號、US7,010,999、令華民 國（發明專利）公開第200637692號、中華民國專利公告第 5 11 564號揭露之活動扳手（a(yustabie Spanner)，採用不同 之「樞轉式爪」，普遍上可避免上述問題，詳而言之，公 告第501515號於固定顎n上設置橫向貫穿該固定顎u之凹 槽14，並以雙層對稱結構之轉動件（樞轉式爪）4〇、μ樞固 於該兩凹槽内，而使轉動件4〇、66包夾於擋止部15之 間，藉此達到將扳手沿一方向旋轉可將螺絲旋緊/旋鬆， 沿另一方向旋轉可空轉回拉。然而，此一專利仍具有下列 缺點：〇)其兩種形式之轉動件（樞轉式爪）40、66分別為雙 層對稱結構、T形結構之實施例，結構複雜；⑺轉動件 4〇、66包夾在槽孔的兩擋止部15之間，而無法旋入槽孔 内’故扳手開口受限於轉動件的突出而尺寸較大，較為笨 重.，而且只能使用於「活動扳手」上，不適用於開口扳 手（3)彈簧50 67設於樞轉上，能使轉動件4〇、66回彈的 =力較小’操作不順暢；⑷用來容納轉動件4〇、66的槽為 貫穿槽14或穿孔’穿透扳手頭部’故扳手夾持部的強度較 差中華民國專利公告第511564號、⑽，㈣卿、及中 華民國專利公開公報第扇637692號將前述公告第训川 號中穿透扳手頭部的貫穿凹槽改良成未穿透的圓弧C形槽 144487.doc 201014681 而獲得較高強度、並將前述公告第501515號中「轉動件 40、66」改成受彈簧撥動的「驅動滾輪」，以取代轉動件 (樞轉式爪）。然而，一方面由於「驅動滾輪」面積大，用 來安裝該「驅動滾輪」的固定顎必需有相當寬大的面積來 谷納5亥驅動滚輪；另一方面此等先前技術只能用於活動扳 手，以配合「活動顎」、「蝸桿」等元件，才能確實咬合螺 、·‘糸/螺帽等繫件或工作物，整體活動扳手必更為笨重，操 作不便。201014681 VI. Description of the Invention: [Technical Field] The present invention relates to an open quick wrench that can be reciprocated and reciprocated, and in particular, an operator can obtain "from the position of the gripping work w to the air." One time in place" smooth operation of the touch-sensitive opening quick wrench. [Prior Art] The open quick wrench is an improved hand tool which combines the advantages of the conventional open-end wrench and the ratchet wrench to be idly-retracted and reciprocating. It is very convenient to use, and a considerable degree of improvement technology has been accumulated in the past. For example, Republic of China Patent Bulletin No. 228757 ("Strokes of a one-way precession ratchet wrench"); Announcement No. 278060 ("Gum-type rotary wrench"); Announcement No. 327619, US553 (W09615879) ("ratchet-type wrench and ratchet-type board: method of rotating a rotatable element"); patent No. M31〇772 ("open-operated open-end wrench"); and other countries such as US7111529, US7077035, US3165015 patent. In addition, the adjustable wrench also has a similar reciprocating operating mechanism, such as the Republic of China Patent Bulletin No. 5〇15丨5 (active wrench with ratchet wrench function), and the Sichuan-style roller reversible adjustable wrench patent case, US US〇1〇999 , Republic of China patent: 262313, the United States mouth 82,879,681 and so on. The open-end wrench disclosed in Patent Publication No. 228757 utilizes one of the "moving in the same direction as the drive spring" provided in the clamps on both sides of the opening drive portion to the collapsible jaw/key (the teeth 2, 3), so that the wrench can be The effect of the reciprocating operation can be achieved. In this structure, the 'retractable claws, (2, 3) are moved forward in the direction of the spring pushing to tighten the screws when the wrench is clockwise, and in the counterclockwise direction 144487. Doc 201014681 idling back to pull ◎ However, because the wrench tightens (or loosens) the screw, it depends on the reaction force provided by the collapsible claw when the screw is pressed against the collapsible claw. The wrench of this type of operation can be shortened/颚(2,3) Although the toothed surface is provided in contact with the screw to provide a reaction force; however, on the one hand, the direction of the reaction force only produces a component force on the tooth surface (the contact between the tooth surface and the screw joint as a whole) The surface is not 90 degrees). After the tooth structure is used for a long time, it will cause wear and other factors, and the direct view will be tight/spinning. On the other hand, the size of the opening of the wrench is different from the actual nut size. And the claws/颚(2,3) can be used during the operation. It will move back and forth and have progressive wear, which is prone to occlusion errors. It is not convenient to use such a wrench. The above-mentioned shortcomings have been slightly improved in the cases of Patent Publication No. 327619 and US Pat. No. 5,534,428 (W09615879). The main method is to use a single retractable jaw/颚i5 of "moving in the same direction as the driving spring" and to improve the structure of the opening of the wrench. That is, its defining jaw 15 has a second engagement surface 14 which is parallel to the first engagement surface 13 on the first jaw 11. However, this structure does not work well when it is idling back. One reason for this is that the nut 6 is adjacent to a side angle 75 of the collapsible jaw 15 and is easily caught by the collapsible jaw 15 to block the stroke of the pullback. Even if the chamfered edge 16 is provided in the patent, attempts to reduce this problem cannot be completely avoided. Moreover, due to the complicated structure of the opening of the wrench and the large size of the nut, not only the weight of the wrench increases with the size, but also the two opposite directions of tightening/unscrewing the screw and idling back. Mobile testing to find a better point of application, which will consume operating time 'is very inconvenient for professional users. The foregoing or other similar problems exist in various types of wrenches that rely on the "retractable jaws that move in the same direction as the drive springs": 144, 487 , 529, etc. Another common problem with such a wrench is that when the screw is tightened/unscrewed, the spring and the collapsible jaw are directly subjected to a large torque, which is disadvantageous for the service life. The Chinese version of the patent publication No. 501515, US 7,010,999, the Republic of China (invention patent) published No. 200637692, the Republic of China Patent Notice No. 5 11 564, the adjustable wrench (a (yustabie Spanner), using different "pivoting" "Paws" generally avoid the above problems. In detail, Announcement No. 501515 is provided on the fixed 颚n with a groove 14 extending transversely through the fixed 颚u, and a double-sided symmetrical structure (pivoting type) The claws 4〇, μ are pivoted in the two grooves, and the rotating members 4〇, 66 are sandwiched between the blocking portions 15, thereby rotating the wrench in one direction to screw/screw the screws Rotating in the other direction can be idly pulled back. However, this patent still has the following disadvantages: 〇) The two types of rotating members (pivoting claws) 40, 66 are respectively a double symmetrical structure, a T-shaped structure In the embodiment, the structure is complicated; (7) the rotating members 4〇, 66 are sandwiched between the two stop portions 15 of the slot, and cannot be screwed into the slot. Therefore, the opening of the wrench is limited by the protrusion of the rotating member, and the size is large. More cumbersome. It can only be used on the "active wrench". Applicable to the open end wrench (3) The spring 50 67 is set on the pivoting, so that the rotating force of the rotating parts 4〇, 66 rebounds is small, the operation is not smooth; (4) the groove for accommodating the rotating parts 4〇, 66 is penetrated The groove 14 or the perforation 'penetrates the wrench head', so the strength of the wrench clamping portion is poor. The Republic of China Patent Publication No. 511564, (10), (4) Qing, and the Republic of China Patent Gazette No. 637692 will be the aforementioned announcement No. The penetration groove penetrating the head of the wrench is modified into an unpenetrated circular arc C-shaped groove 144487.doc 201014681 to obtain higher strength, and the "rotating member 40, 66" in the above-mentioned publication No. 501515 is changed to a spring-loaded Move the "drive roller" to replace the rotating member (pivoting claw). However, on the one hand, due to the large area of the "drive roller", the fixed cymbal for mounting the "drive roller" must have a relatively large area to drive the roller on the Guar 5; on the other hand, the prior art can only be used for the adjustable wrench. In order to match the components such as "activity 颚" and "worm", it is necessary to bite the snails, 糸 螺 / nuts and other parts or work items. The overall adjustable wrench must be more cumbersome and inconvenient to operate.
在各種可空轉回拉往復操作之扳手中，利用「與驅動彈 簧同向運動之可縮爪」機構之扳手較利用「樞轉式爪」機 構之扳手所需之結構較為單純，具有低成本之優勢；然 而，前者之設計有高複雜度，—般不脫下列幾種缺點：⑴ 回縮爪必需配合-「貫穿夾顆」&滑孔，致使扳手夹顆結 構易因㈣高@力操作而斷裂⑺回縮爪被設計成具 複雜嚙口面、或需配合多個回縮爪，以嚙合螺絲，螺帽 :繫件或工作物等繫件或工作物，致使製造不易或製造成 曰⑺回縮爪的③計需承受極大的力量而容易損壞； (4)容納螺絲/螺帽等螌侔 一 寻綮件之繫件室，可能採移動式夾顎而 結構複雜；或雖採—練+ + 紅 式夾顎但繫件室輪廓複雜，致使操 作不易。 改善前述缺點。 因此，有必要提供一種開口快速扳手 【發明内容】 柄 本發明之目的’在揭露一種開口快速扳手，包括 ，可供手部握持；-開σ驅動部，其位於該握柄 端 144487.doc 201014681 及"""繫件室，| 物。開口驅動部位包:開口驅:部内，用以容納待扳動工作 壁；-第二爽韻二.：夹顆，其具有一第一抵靠 壁；-内壁，其自第'贵―第二抵靠壁’面對第-抵靠 繫件退讓室；❹第二㈣之内㈣延伸；一 向滑動於該辅助韻^讓孔；一辅助顆’其可彈性地縱 限位_合。辅助顎及一輔助顎限位件，其與該 壁接觸之枕部、及二^部端，纟包括—可與該抵靠 之推麼面；—内，端二第一夾顯共同夾持待扳動工作物w 門邵端，及一限位槽。 【實施方式】 W二：1Α至圖2 Β顯示本發明用以扳動-待扳動工作物 '’螺絲/螺帽等繫件或其他具多邊形受驅動端之手 β 了）之開π快速扳手以―較佳實施例；「卫作物指的 ^ 螺絲/螺帽等繫件、或其他具多邊形受驅動端Among the various wrenches that can be reciprocated and reciprocated, the wrench using the "retractable claws in the same direction as the drive spring" mechanism is simpler than the wrench using the "pivoting claw" mechanism, and has a low cost. Advantages; however, the design of the former has high complexity, and generally does not take off the following shortcomings: (1) The retracting claw must be matched - "through the clip" & the sliding hole, so that the wrench clip structure is easy to cause (four) high @ force operation The fracture (7) retracting jaw is designed to have a complex orbital surface, or to cooperate with a plurality of retracting jaws to engage a screw, nut: tie or work item or work item, making the manufacture difficult or manufacturing. (7) The 3 gauges of the retracting claws are subject to great force and are easily damaged; (4) The parts of the fittings that accommodate the screws/nuts, etc., may be moved and clamped and the structure is complicated; Practicing + + red clips but the contour of the compartment is complex, making the operation difficult. Improve the aforementioned shortcomings. Therefore, it is necessary to provide an open quick wrench [invention] The purpose of the present invention is to disclose an open quick wrench, including, for holding a hand; an open σ driving portion, which is located at the grip end 144487.doc 201014681 And """Case room,| Open drive part package: open drive: inside part to accommodate the working wall to be pulled; - second refreshing two:: clip, which has a first abutting wall; - inner wall, from the first 'expensive' The abutting wall 'facing the first-abutment line retreat chamber; the second (four) inside (four) extending; one-way sliding on the auxiliary rhyme to make the hole; an auxiliary piece 'which can be elastically longitudinally limited_close. The auxiliary 颚 and an auxiliary 颚 limiting member, the occipital portion contacting the wall, and the two ends, the 纟 — 可 可 可 可 — — — — — — — — — — — — — — — Wait for the work object w door end, and a limit slot. [Embodiment] W2: 1Α to Fig. 2 Β shows that the present invention is used to pull-to-pull the workpiece ''screw/nut or the like or other hand with a polygonal driven end β) Wrench with "preferred embodiment"; "system screw" / screw or other system, or other polygonal drive end
L扳手驅動之手工具。本文中工作物W泛指工作物W 中受板手驅動之受驅動端。開口快速扳手1大致包括：- 握柄Η ’可供手部握持；及—開口驅動部⑽，其位於該握 柄Η—端。 一開口驅動部100較佳包括：一第一夾顎η〇，其具有一第 抵靠壁114，-第二夾顆12〇，其大致自一鄰接該握柄之 土部121延伸至一自由端122;及一繫件室“ο，其位於 開口驅動部1〇〇内，用以容納待扳動工作物w。 第—夾顎lio之内段（背離第一抵靠壁114的區段）較佳形 成内凹部112，其可在扳手空轉回拉之操作過程中，容 144487.doc 201014681 納工作物w之突出角部（參圖2A)，使操作過程平順。惟第 一夹顎110亦可不設該内凹部112，改而將第二夾顎12〇之 内側擴大，以在扳手空轉回拉之操作過程中容納工作物 W;此雖稍微增加扳手重量，仍可達成特定之功效。 第二失顎120包括： 一第二抵靠壁124，其形成於第二夾顎12〇之該自由端 122並面對第一抵靠壁114 ; 内壁126 ’其自第二抵靠壁丨24向第二夾顎12〇之内側 攀 延伸； 一繫件退讓室128,其大致設於該第二抵靠壁124之延伸 線與該内壁126之間； 一輔助顎退讓孔130,其延伸於該基部121内而與該繫件 退讓室128鄰接，且輔助顎退讓孔13G較佳不貫穿第二夾顆 120 ； 輔助顎140，其局部設於該辅助顎退讓孔13〇内並可彈 φ 挫地（參圖不之彈簧S)縱向滑動於該輔助顎退讓孔130内； 一内部端146，其彈性耦接於辅助顎退讓孔130内（藉由 一彈簧S); 一限位槽148 ;及 辅助顯限位件150，其自第二夹顎120之表面經由-限 位孔152延伸至该辅助顎退讓孔13〇，與該限位槽Mg耦 合’以限制該輔助顎140移動於—未受偏壓之第一位置與 一受偏壓之第二位置之間。 該輔助顎140較祛白. ^ 权佳包括•一面對内壁126而可與該内壁 144487.doc 201014681 126接觸之枕部142、及—用以接觸卫作物％之繫件接觸 面；繫件接觸面包括一抵靠面143及一推壓面144。較佳的 是，輔助顯140位於未受偏麗之第一位置時，繫件接觸面 與第《顎110之第—抵靠壁114間之最窄寬度大致等於工 作物W之尺寸。抵靠面143大致面對待扳動作物w之-接 觸邊緣WS中鄰近基部i 2丨之部分（即圖2 A中接觸邊緣之 下半邛）其在操作工作物W時與第一夾顎11〇共同夾持工 作物W並對其施力^推壓面⑷大致面對待扳動卫作物^之 該接觸，緣ws中背離基部121之部分（即圖2A中接觸邊緣 之上半部），其在開口快速扳手1於空轉回拉時，可受待扳 動工作物w之接觸邊緣ws之上半部推壓，以使輔助顎14〇 向辅助顎退讓孔130内撤回。推壓面144較佳具一和緩的弧 面/曲面。抵靠面丨43與推壓面144之間較佳以一平順弧面/ 曲面相接，亦即，輔助顎140的繫件接觸面從抵靠面143起 以-弧面延伸至㈣面144(除了推壓面144本身具有弧面/ 曲面外，推壓面144與抵靠面143彼此亦以_弧面/曲面相 接）以利於工作物W從接觸抵靠面143滑移至接觸推壓面 144的過程滑順而流轎，如此有助於：當操作開口快速扳 手I從夾持工作物W的位罝空轉回拉時，操作者可獲得一 次到位的平順操作觸感。此相較於US5533428等習知技 術’在空轉回拉時必需藉反覆歷經多次移動測試來尋求較 佳施力點的不平順操作過程，本發明顯然大大增進了操作 便利性。 ~ 限位槽148較佳為位於該辅助顎14〇一側、且界定於枕部 144487.doc 201014681 142之一肩！54、内部端146之一肩156、及内壁126間之縱 向缺口；亦即該缺口本身為U形結構，在内壁126之圍繞下 形成一溝槽。根據此一結構，辅助顎限位件150耦合於限 位槽148中’使輔助顎140在肩154、156的阻擋下，移動於 未受偏壓之第一位置與一受偏壓之第二位置之間。如圖2c 所示’根據本發明另一實施例中’限位槽148亦可為大致 位於辅助顎丨4〇内（亦即：與輔助顎140之周圍及内壁126相 隔一距離）之一縱向缺口。 為獲得更佳之功效’輔助顎14〇於該第一位置時，其抵 靠面143與待扳動工作物界之接觸邊緣ws之接觸位置，較 佳大致位於或略低於待扳動工作物W之接觸邊緣ws之中 央。根據另一較佳實施例，輔助顎M〇於該第一位置時， 其抵靠面143與縱向中心線之夾角小於35度，更佳小於25 度，如此，在辅助顎140在扳轉工作物|時，輔助顎14〇所 承受之扭力t至少有大部分/或幾乎全部轉換為沿辅助顎 ❹ U〇徑向方向之分力’而使輔助顎140緊靠於輔助顎退讓孔 130之孔壁，便於驅動該工作物w(可參圖2〇之受力分布示 意圖）。根據另一較佳實施例，辅助顎14〇之推壓面144 、以較佳和緩的弧面/曲面向抵L wrench driver hand tool. In this paper, the work object W refers to the driven end driven by the wrench in the work W. The open quick wrench 1 generally comprises: - a grip Η ' for hand gripping; and - an opening drive portion (10) located at the Η end of the grip. An opening driving portion 100 preferably includes a first clamping frame 具有 having a first abutting wall 114 and a second clamping member 12 延伸 extending substantially from a soil portion 121 adjacent to the handle to a free The end 122; and a tie chamber "o, which is located in the opening drive portion 1" for receiving the workpiece w to be pulled. The inner portion of the first clip (the section facing away from the first abutment wall 114) Preferably, the inner concave portion 112 is formed, which can be used to make the operation process smooth during the operation of the wrench idling back and pulling (refer to FIG. 2A), but the first clamp 110 Alternatively, the inner recess 112 may not be provided, and the inner side of the second clamp 12〇 may be enlarged to accommodate the work W during the idling back of the wrench; this slightly achieves a specific effect by slightly increasing the weight of the wrench. The second defect 120 includes: a second abutment wall 124 formed at the free end 122 of the second jaw 12〇 and facing the first abutment wall 114; the inner wall 126 'from the second abutment wall 24 extends toward the inner side of the second clamp 12〇; a tie down chamber 128 that is substantially disposed on the second abutment wall 124 Between the line and the inner wall 126; an auxiliary retracting hole 130 extending in the base portion 121 to abut the tethering chamber 128, and the auxiliary retracting hole 13G preferably does not penetrate the second clamping member 120; 140, partially disposed in the auxiliary 颚 withdrawal hole 13 并可 and can be slidably slid (refer to the spring S) longitudinally sliding in the auxiliary 颚 relief hole 130; an internal end 146, which is elastically coupled to the auxiliary颚 within the relief hole 130 (by a spring S); a limiting slot 148; and an auxiliary display limiting member 150 extending from the surface of the second clamping jaw 120 via the limiting aperture 152 to the auxiliary relief aperture 13 〇, coupled to the limiting slot Mg to limit the auxiliary 颚 140 from moving between the unbiased first position and a biased second position. The auxiliary 颚 140 is relatively white. ^ 权佳The utility model comprises: a pillow portion 142 facing the inner wall 126 and contacting the inner wall 144487.doc 201014681 126, and a contact portion for contacting the guard crop %; the tie contact surface comprises an abutment surface 143 and a push Pressing surface 144. Preferably, when the auxiliary display 140 is in the first position that is not biased, the contact surface of the tie is the same as The first narrowest width between the abutting walls 114 is substantially equal to the size of the workpiece W. The abutting surface 143 is substantially opposite to the portion of the contact edge WS that is adjacent to the base i 2 ( (ie, Figure 2A The lower half of the middle contact edge) holds the work W and the force of the work piece W when the work object W is operated, and the push surface (4) substantially faces the contact of the crop. The portion of the edge ws that faces away from the base portion 121 (ie, the upper half of the contact edge in FIG. 2A) is pushed by the upper half of the contact edge ws of the workpiece w to be pulled when the open quick wrench 1 is idly pulled back. Pressing so that the auxiliary 颚 14 撤 is withdrawn into the auxiliary 颚 withdrawal hole 130. The pressing surface 144 preferably has a gentle arc/curved surface. Preferably, the abutting surface 43 and the pressing surface 144 are connected by a smooth curved surface/curved surface, that is, the coupling contact surface of the auxiliary weir 140 extends from the abutting surface 143 to the arc surface to the (four) surface 144. (Except that the pressing surface 144 itself has a curved surface/curved surface, the pressing surface 144 and the abutting surface 143 are also connected to each other by a curved surface/curved surface) to facilitate the sliding of the workpiece W from the contact abutting surface 143 to the contact pushing. The process of the pressing surface 144 is smooth and the car is passed, which helps: when the operation opening quick wrench I is turned back from the position of the clamping work W, the operator can obtain a smooth operation touch in one position. This is a significant improvement in operational convenience compared to the prior art such as U.S. Patent 5,533,428, which relies on repeated travel tests to seek a better point of application during idling. The limiting slot 148 is preferably located on the side of the auxiliary cymbal 14 、 and is defined on one shoulder of the occipital portion 144487.doc 201014681 142! 54. A shoulder 156 of the inner end 146 and a longitudinal gap between the inner wall 126; that is, the notch itself has a U-shaped configuration, and a groove is formed around the inner wall 126. According to this configuration, the auxiliary 颚 limiting member 150 is coupled to the limiting slot 148 to 'move the auxiliary cymbal 140 under the blocking of the shoulders 154, 156 to move to the unbiased first position and the second biased position. Between locations. As shown in FIG. 2c, 'in accordance with another embodiment of the present invention, the 'restriction slot 148' may also be located substantially in the auxiliary 颚丨4〇 (ie, at a distance from the periphery of the auxiliary cymbal 140 and the inner wall 126). gap. In order to obtain better performance, the contact position of the abutting surface 143 with the contact edge ws of the workpiece boundary to be pulled is preferably substantially at or slightly lower than the workpiece to be pulled. The contact edge of W is at the center of ws. According to another preferred embodiment, when the auxiliary 〇M is in the first position, the angle between the abutting surface 143 and the longitudinal centerline is less than 35 degrees, more preferably less than 25 degrees, so that the auxiliary cymbal 140 is turned over. At the time of the auxiliary 颚 14 至少, at least most of the torque t is converted into a component force in the radial direction of the auxiliary 颚❹ U 而 and the auxiliary 颚 140 is abutted against the auxiliary 颚 relief hole 130 The wall of the hole is convenient for driving the work object w (refer to the diagram of the force distribution of Fig. 2). According to another preferred embodiment, the pressing surface 144 of the auxiliary weir 14颚 is offset by a preferably gentle curved surface/curved surface.
減少枕部142與内壁126間之磨損。 144487.docThe wear between the pillow portion 142 and the inner wall 126 is reduced. 144487.doc
一鄰近内壁126之末端延伸、 靠面143延伸，藉此使空棘G 201014681 繫件室160容納待扳動工作物W，其大致位於輔助顎140 與第一抵靠壁II4之間、並與繫件退讓室128鄰接，該繫件 室160與退讓室128共同形成一足夠大之空間允許該開口驅 動部100相對於該待扳動工作物W轉動以完成空轉回拉（於 空轉回拉過程中，工作物W會進入繫件退讓室128並推壓 辅助顎140)。 一顎口部170界定於第一夾顎11〇之第一抵靠壁114與第 二夹顎120之第二抵靠壁124之間，其寬度大致與待扳動之 工作物W之尺寸相同，使第一夾顎110與第二夾顎ι2〇可共 同扳動該工作物W。 值得注意的是，習知技術中，如US7,111,529，為提供 空轉回拉往復操作之功能，扳手之顎口部寬度必需大於待 扳動工作物W(亦即顎口部的尺寸與可轉動工作物w的尺寸 不一致）’才能配合繫件室的複雜結構及輔助顎的結構； 然而本發明中，前由前述之設計，顎口部17〇之寬度能大 致與待扳動工作物w之尺寸相同，使開口快速扳手丨之開 口驅動部100之外觀、大小幾乎與一般不具空轉回拉、往 復操作機構之開口扳手相同，不但節省製造材料，亦能配 合小尺寸工作物W而製作小型開口快速扳手。而且，如前 所述，本發明輔助140的繫件接觸面與第一夾顎110之第一 抵靠壁114間之最窄寬度亦可大致等於工作物貿之尺寸； 故操作者整個操作過程’包括從取㈣口快速扳手i、並 將其顆口部170抵靠工作物w、扳轉工作物w、而後空轉目 拉、再扳轉工作㈣的一連串㈣，是非常平順的。此為 144487.doc -12· 201014681 習知技術所不及。 圖3 A至3E顯示本案鎖固工栳4 产形一咅 n 物臂過程中空轉回拉之操作 匱形不意。工作物W為六角螺絲 ^ bs 角螺絲’故開口快逮扳手之開口 G每回拉—個螺絲邊角，相當於扳手旋轉崎， 故於圖3A至财扳手逆時針旋轉輻度共為6〇。。圖从至把 分別顯示每回拉15。時辅助篛丨4An end portion of the inner wall 126 extends adjacent to the surface 143, thereby allowing the airbag G 201014681 tie chamber 160 to accommodate the workpiece W to be pulled, which is substantially located between the auxiliary jaw 140 and the first abutment wall II4, and The line retracting chamber 128 is adjacent, and the cuff chamber 160 and the retreating chamber 128 together form a sufficient space to allow the opening driving portion 100 to rotate relative to the object to be pulled W to complete the idling pullback (in the idling pullback process) In the middle, the work W will enter the line retreat chamber 128 and push the auxiliary 颚 140). A mouth portion 170 is defined between the first abutment wall 114 of the first jaw 11〇 and the second abutment wall 124 of the second jaw 120, and has a width substantially the same as the size of the workpiece W to be pulled. The first clamping jaw 110 and the second clamping jaw 〇2 can jointly move the working object W. It is worth noting that in the prior art, such as US 7,111,529, in order to provide the function of the idling reciprocating operation, the width of the nip of the wrench must be greater than the width of the workpiece W to be pulled (ie, the size and rotation of the mortise) The size of the work object w is inconsistent) 'to match the complex structure of the tie chamber and the structure of the auxiliary cymbal; however, in the present invention, the width of the mortise portion 17 大致 can be substantially equal to the work to be pulled by the foregoing design. The same size, the opening and driving unit 100 of the open quick wrench has almost the same appearance and size as the open-end wrench which is generally free to be pulled back and reciprocating, and not only saves manufacturing materials, but also can make small openings with small-sized work W. Quick wrench. Moreover, as described above, the narrowest width between the tie contact surface of the auxiliary 140 of the present invention and the first abutment wall 114 of the first clamp 110 may also be substantially equal to the size of the work object; 'A series of four (four) from the take-up (four) port quick wrench i, and its mouth portion 170 against the work w, turn the work w, and then idling, and then turn the work (four), is very smooth. This is 144487.doc -12· 201014681 The conventional technology is too late. Fig. 3 A to 3E show that the locking work of the present case 4 produces a 咅 n object arm process hollow back to pull operation 匮 shape is not intended. The workpiece W is a hexagonal screw ^ bs angle screw 'Therefore the opening of the wrench is fast. The opening of the wrench G is pulled back. The angle of the screw is equivalent to the rotation of the wrench. Therefore, the rotation of the counterclockwise rotation in Fig. 3A is 6〇. . . The graph shows the pullback 15 each time from the top to the bottom. Time aid 篛丨4
飞40與工作物W之接觸邊緣WS 之相對位置。圖3A中，輔_ 稍助顎140在彈簧s偏壓下抵達未受 偏壓之第一位置，較佳抽查The relative position of the flying edge 40 to the contact edge WS of the workpiece W. In Fig. 3A, the auxiliary _ 颚 颚 140 reaches the unbiased first position under the bias of the spring s, preferably a spot check
抵靠面143緊臨接觸邊緣WS，於此 位置’輔助顎140可與第-夾韻⑽共同夹持該螺絲，故若 以順時針方向旋轉開口快速扳手，可將螺絲旋緊/旋鬆； 如圖3B所示，以逆時針方.向旋轉開口快速扳手時，螺絲對 辅助顯140之反作用力，使辅助顯14〇之推壓面w受力向 輔助顆退讓孔13〇内撤回’從第一位置往第二位置前進， 形成扳手空轉回拉。如圖3(：至邛，扳手繼續旋轉，在繞過 螺絲一邊角後（如圖3D) ’辅助顎14〇重新回到第一位置（參 圖3E) ’扳手即可再次沿順時針方向將螺絲旋緊/旋鬆。 以上所有說明用以闡釋本發明之較佳實施例而非用以 限制本發明。任何依照本發明之結構 '特徵、主旨及申請 專利範圍所施行之其他簡單變化的等效實施例，都應由本 案之申請專利範圍所涵蓋。 【圖式簡單說明】 圖1A至圖1B為本發明之立體示意圖。 圖2 A為本發明之平面部視圖。 圖2B為本發明組合後之平面圖。 H4487.doc -13- 201014681 圖2C為本發明另一實施例之平面圖，其顯示限位槽為 致位於輔助顎140内之一縱向缺口。 大 圖2D為本發明之輔助顎於夾持工作物時之成 _ 又刀为布示意 圖。 圖3A至圖3E為本發明空轉回拉操作之示意圖。 【主要元件符號說明】 100 開口驅動部 110 第一夾顎 112 内凹部 114 第一抵靠壁 120 第二夾顎 121 基部 122 自由端 124 第二抵靠壁 126 内壁 128 繫件退讓室 130 輔助顎退讓孔 140 辅助顎 141 輔助顎之本體 142 枕部 143 抵靠面 144 推壓面 146 内部端 148 限位槽 144487.doc -14- 201014681The abutting surface 143 is adjacent to the contact edge WS. In this position, the auxiliary 颚140 can clamp the screw together with the first clip (10), so if the open quick wrench is rotated clockwise, the screw can be screwed/unscrewed; As shown in FIG. 3B, when the quick-rotating wrench is turned counterclockwise, the reaction force of the screw to the auxiliary display 140 is such that the pressing surface w of the auxiliary display 14 is forced to withdraw from the auxiliary-receiving hole 13〇. The first position advances to the second position to form a wrench that is idly pulled back. As shown in Figure 3 (: to 邛, the wrench continues to rotate, after bypassing the corner of the screw (Figure 3D) 'Auxiliary 颚 14 〇 returns to the first position (see Figure 3E) 'Wrench can be again clockwise Screws are screwed/unscrewed. All of the above descriptions are illustrative of preferred embodiments of the invention and are not intended to limit the invention. Any other simple variations of the structure, features, and scope of the application in accordance with the invention. 1A to 1B are perspective views of the present invention. Fig. 2A is a plan view of the present invention. Fig. 2B is a combination of the present invention. Figure 2C is a plan view showing another embodiment of the present invention, showing the limit groove being a longitudinal notch in the auxiliary crucible 140. Figure 2D is an aid to the present invention. Fig. 3A to Fig. 3E are schematic views of the idling pullback operation of the present invention. [Main component symbol description] 100 opening drive portion 110 first clamp 112 inner recess 114 first Arrive Abutment wall 120 second clamp 121 base 122 free end 124 second abutment wall 126 inner wall 128 tie retraction chamber 130 auxiliary 颚 retraction hole 140 auxiliary 颚 141 auxiliary 颚 body 142 occupant 143 abutment surface 144 push surface 146 Internal end 148 limit slot 144487.doc -14- 201014681
150 輔助顎限位件 152 限位孔 154 枕部142之肩 156 内部端146之肩 160 繫件室 170 顎口部 AP 施力點 D 受力分布 H 握柄 S 彈簧 W 如繫件等工作物150 Auxiliary 颚 limiter 152 Limit hole 154 Shoulder 142 shoulder 156 Shoulder of internal end 146 160 System room 170 Mouth part AP force point D Force distribution H Grip S Spring W Wraps such as parts
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