1355990 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」的平順操作觸感的開口快速扳手。 【先前技術】 開口快速扳手，疋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 去已累積相當知度之改良技術。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」）丨公 告第278060號（「齒囌式回轉扳手」）；公告第327619號、 US5533428(W09615879) (「棘輪式扳手及以棘輪式扳手轉 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 501515(具有棘輪扳手功能之活動扳手）、及5u564(滾輪式 可逆活動扳手）專利案、美國US7〇1〇999、中華民國專利八 告 2623 13、美國1182,879,681 等。 “ 專利公告第228757號揭露之開口板手，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致γ 此一結構中，可縮爪/顎（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、並在逆時針方 <向 144487.doc 1355990 空轉回拉。然而，由於板手旋緊（或旋鬆）螺絲時，需㈣ 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；iW即，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（嵩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 影響旋緊/旋鬆的操作性能；另—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」之單可縮爪/顯1 5、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Η，其 平行於第一爪11上的第一嚙合面13。然而，此一結構在空 鲁轉回拉時運作並不順利。其一原因在於，螺帽_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 仃程。即使该專利中提供倒角邊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 氣、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。 月’J述或其他類似問題存在於各種仰賴「與驅動彈簧同向 144487.doc 1355990 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、中華民 國（發明專利）公開第200637692號、中華民國專利公告第 5 11564號揭露之活動扳手（adjustable 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u上設置橫向貫穿該固定顎u之凹 才曰14並以雙層對稱結構之轉動件（樞轉式爪）4〇、66樞固 於该兩凹槽14内，而使轉動件40、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：（1)其兩種形式之轉動件（樞轉式爪）4〇、66分別為雙 層對稱、’‘。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 内故扳手開口文限於轉動件的突出而尺寸較大，較為笨 重而且^月匕使用於「活動扳手」上，不適用於開口板 ()彈簧50 67设於樞轉上，能使轉動件、66回彈的 彈力較j操作不順暢；⑷用來容納轉動件4。、μ的槽為 貫穿匕14或穿孔’穿透板手頭部，故板手夹持部的強度較 差。中華民國專利公告第511564號、US7,010,999、及中 華民國專利公開公報第2_37692號將前述公告第5〇i5i5 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 而獲得較高強度 '並將前述公告第501515號中「轉動件 4〇、66」改成受彈簧撥動的「驅動滾輪」，以取代轉動件 (插轉式爪）。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 谷納該驅動滾輪；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 絲/螺帽等繫件或工作物’整體活動扳手必更為笨重，操 作不便。 在各種可空轉回拉往復操作之扳手中利用「與驅動彈 菁同向運動之可縮爪」機構之扳手較利用「樞轉式爪」機 構之板手所需之結構較為單純，具有低成本之優勢；然 而’則者之設計有高複雜度，一般不脫下列幾種缺點：〇) 回縮爪必需配合一「貫穿夹顎」的滑孔，致使扳手夾顎結 構脆弱，易因長期高鈕力操作而斷裂（2)回縮爪被設計成具 有複雜嚙合面、或需配合多個回縮爪，以嚙合螺絲/螺帽 等繫件或工作物等繫件或工作物，致使製造不易或製造成 本增加；（3)回縮爪的設計需承受極大的力量而容易損壞，· (4)谷納螺絲/螺帽等繫件之繫件室，可能採移動式失顎而 釔構複雜，或雖採一體式夾顎但繫件室輪廓複雜，致使操 作不易。 因此，有必要提供一種開口快速扳手，改善前述缺點。 【發明内容】 本發明之目的，在揭露一種開口快速扳手，包括：一握 柄，可供手邹握持；一開口驅動部，其位於該握柄一端； 144487.doc yu :一：件室，其位於開口驅動部内’用以容納待扳動工作 :。開口驅動部包括：一第一夹顆，其具有一第一抵靠 壁，一第二夾顎，其包括._ 第一抵罪壁，面對第一抵靠 壁，一内壁，其自第二把蚩 —抵罪土向第二夾顎之内側延伸；一 繫件退讓室；一輔肋.上. U讓孔，一辅助顎，其可彈性地縱 向滑動於該辅助顎退讓孔内. 艰札門，及一輔助顎限位件，其盥該 限位槽耦合。辅助顎包括一 /…、 匕枯外部鳊，其包括一可與該抵靠 壁接觸之枕部、及—盘第一.額丘门+扯/士 I名 ，、矛又顎共同夾持存扳動工作物w 之推壓面；一内部端；及一限位槽。 【實施方式】 如圖1Α至圖2Β顯示本發明肖以扳動一待板動工作物 W(例如：螺絲/螺帽等繫件或其他具多邊形受驅動端之手 工具）之開口快速扳手丨之一較佳實施例；「工作物w」指的 是：例如，螺絲/螺帽等繫件、或其他具多邊形受驅動端 而可藉扳手驅動之手工具。本文中工作物w泛指工作物w 中受扳手驅動之受驅動端。開口快速扳手丨大致包括：一 握柄Η，可供手部握持；及一開口驅動部1 〇 〇，其位於該握 柄Η —端。 開口驅動部100較佳包括：一第一夾顎11〇，其具有一第 一抵靠壁114; 一第二夾顎12〇,其大致自一鄰接該握柄之 一基部121延伸至一自由端122;及一繫件室160，其位於 開口驅動部1 〇〇内’用以容納待扳動工作物w。 第一夾顎110之内段（背離第一抵靠壁114的區段）較佳形 成一内凹部112，其可在扳手空轉回拉之操作過程中，容 144487.doc 1355990 納工作物W之突出角部（參圖2A)，使操作過程平順。惟第 一夾顎110亦可不設該内凹部112’改而將第二夹顆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。 第二夾顎120包括： 一第二抵靠壁124’其形成於第二夾顆12〇之該自由端 I22並面對苐一抵靠壁114 ;1355990 VI. Description of the Invention: [Technical Field] The present invention relates to an open quick wrench capable of idling back and forth reciprocating operation, in particular, when the operator pulls back from the position of the gripping work w, the operator can obtain " One time in place" smooth operation of the touch-sensitive opening quick wrench. [Prior Art] An open hand wrench, an improved hand tool that combines the traditional open-end wrench and the ratchet wrench to vacate and retract the reciprocating operation, is convenient to use, and has accumulated considerable know-how in the past. For example, the Republic of China Patent Bulletin No. 228757 ("Structure for a one-way precession of a ratchet wrench"), Announcement No. 278060 ("Toothed Swing Wrench"); Announcement No. 327619, US5533428 (W09615879) ("Rapet-type wrenches and methods of turning a rotatable element with a ratchet wrench"); Patent No. M31〇772 ("Openable wrench with one-way action"); and other countries such as US7111529, US7077035, US3165015 Patent case. In addition, the adjustable wrench also has a similar reciprocating operating mechanism, such as the Republic of China Patent Notice No. 501515 (active wrench with ratchet wrench function), and 5u564 (roller type reversible adjustable wrench) patent case, US US 〇1〇999, Republic of China Patent 8 Notice 2623 13, US 1182, 879, 681, etc. The open-handed hand disclosed in Patent Publication No. 228757 uses a pair of "clamping jaws / 颚 (keys 2, 3) of the "moving in the same direction as the drive spring" provided in the clamps on both sides of the opening drive portion to make the wrench It can achieve the function of idling back and pull reciprocating operation. In this structure, the claw/颚 (2, 3) can be moved forward in the direction of the spring pushing to tighten the screw when the wrench is clockwise. Counterclockwise side < 144487.doc 1355990 idling back. However, since the wrench tightens (or loosens) the screw, it is required to (4) the reaction force provided by the collapsible claw when the screw is pressed against the collapsible claw, and the wrench of this operation mode can be shrunk; iW ie, 3) The toothed surface is in contact with the screw to provide a reaction force; however, on the one hand, the direction of the reaction force only generates a component force on the tooth surface (the contact surface of the braided surface and the screw joint is not 90 degrees), After the tooth structure is used for a long time, it will cause wear and other factors, and directly affect the operation performance of the screwing/spinning. On the other hand, the size of the opening of the wrench is different from the actual nut size, and the claw/颚 can be reduced. 2, 3) During the operation, it will move back and forth and have progressive wear, which is easy to produce errors in the bite. This type of wrench is not convenient to use. The above-mentioned shortcomings have been slightly improved in the cases of Patent Publication No. 327619 and US5533428 (W09615879), and the main method is to use a single collapsible/display 15 which is "moving in the same direction as the drive spring" and to improve the structure of the opening of the wrench. That is, the delimiting jaw 15 has a second engagement surface 平行 which is parallel to the first engagement surface 13 on the first jaw 11. However, this structure does not work well when the air is turned back and pulled. One reason for this is that the nut _ a side angle 75 of the proximally retractable jaw 15 easily grips the collapsible jaw 15 and blocks the pullback stroke. Even if the chamfered edge 16 is provided in the patent, attempts to reduce this problem cannot be completely avoided. Moreover, because the structure of the opening of the wrench is complicated and the size of the wrench is larger than the size of the nut, not only the weight of the wrench increases with the size, but also the operation of the two opposite directions of tightening/swirl, screw, and idling back must be repeated. The secondary movement test seeks a better point of application, which will consume operating time and is inconvenient for professional users. The month 'J' or other similar problems exist in various wrenches that rely on the "retractable claws in the same direction as the drive spring 144487.doc 1355990"; for example, the Republic of China Patent Bulletin No. M310772, US 3,165,015, US 7,077,035, US 7,111,529, etc. Another common problem with such wrenches is that when the spring is tightened/unscrewed, the spring and the collapsible jaws are directly subjected to large torques, which is detrimental to the service life. The adjustable spanner disclosed in the Republic of China Patent Publication No. 501515, US Pat. No. 7,010,999, the Republic of China (Invention Patent) No. 200637692, and the Republic of China Patent Publication No. 5 11564, using different "pivoting claws", The above problems are generally avoided. In detail, Announcement No. 501515 is provided on the fixed 颚u with a rotating member (pivoting claw) 4〇, 66 which is transversely penetrated by the fixed 颚u and is symmetrical in a double symmetrical structure. In the groove 14, the rotating members 40, 66 are sandwiched between the stopping portions 15, whereby the rotation of the wrench in one direction can be screwed/unscrewed, and the rotation in the other direction can be idly pulled back. However, this patent still has the following disadvantages: (1) The two types of rotating members (pivoting claws) 4, 66 are respectively two-layer symmetrical, ''. The structure of the T-shaped structure is complicated in structure; (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, so the opening of the wrench is limited to the protruding of the rotating member. The size is larger, it is more cumbersome and it is used on the "moving wrench". It is not suitable for the opening plate (). The spring 50 67 is set on the pivoting, so that the elastic force of the rotating member and the rebounding of the 66 is not smoother than that of the j; (4) for accommodating the rotating member 4. The groove of μ penetrates the head of the plate through the 匕14 or the perforation, so the strength of the nipper is poor. The Republic of China Patent Publication No. 511564, US Pat. No. 7,010,999, and the Republic of China Patent Publication No. 2_37692 improve the through-groove of the penetrating head of the fifth bulletin No. 5〇i5i5 into an unpenetrated circular arc C-shaped groove. 144487.doc obtains a higher strength' and changes the "rotating member 4", 66" in the above-mentioned publication No. 501515 to a spring-pulsed "driving roller" instead of the rotating member (plug-in claw). However, on the one hand, due to the large area of the "drive roller", the fixed cymbal used to mount the "drive roller" must have a relatively large area to cover the drive roller; on the other hand, these prior art can only be used for the adjustable wrench. In order to match the "activity 颚", "worm" and other components, it is necessary to bite the screw/nut and other parts or work items. The overall movable wrench must be more cumbersome and inconvenient to operate. In the various wrenches that can be reciprocated and reciprocated, the wrench that uses the "retractable claws in the same direction as the driving elastic" mechanism has a simpler structure and lower cost than the wrench using the "pivoting claw" mechanism. However, the design of the latter has high complexity, and generally does not take off the following shortcomings: 〇) The retracting claw must be matched with a sliding hole that penetrates the clamp, making the wrench clamp structure fragile and prone to long-term high The button force is broken and operated. (2) The retracting claw is designed to have a complicated engaging surface, or it is necessary to cooperate with a plurality of retracting claws to engage a thread or a nut or the like, or a workpiece or a work object, which makes the manufacturing difficult. Or the manufacturing cost increases; (3) The design of the retracting claws is subject to great force and is easily damaged. (4) The fitting chambers of the guar screws/nuts and the like may be mobile and fail to be complicated. Or, although the integrated clip is used, the outline of the tie chamber is complicated, which makes the operation difficult. Therefore, it is necessary to provide an open quick wrench to improve the aforementioned drawbacks. SUMMARY OF THE INVENTION The object of the present invention is to disclose an open quick wrench, comprising: a handle for holding by a hand; an opening driving portion located at one end of the handle; 144487.doc yu: one: room , which is located in the opening drive portion to accommodate the work to be pulled: The opening driving portion includes: a first clamping piece having a first abutting wall, and a second clamping frame, comprising: a first sin wall facing the first abutting wall, an inner wall, and the second Extend the 蚩-to the sin soil to the inner side of the second clamp; a line of retreat chamber; a supplementary rib. upper. U let the hole, an auxiliary cymbal, which can elastically slide longitudinally in the auxiliary 颚 withdrawal hole. a door, and an auxiliary 颚 limit member, which is coupled to the limit slot. The auxiliary raft includes a /... external sputum, which includes a occipital portion that can be in contact with the abutting wall, and a first plate, a front door, a shovel, and a shovel, and a spear and a shackle. Pulling the pressing surface of the work object w; an inner end; and a limit groove. [Embodiment] As shown in FIG. 1A to FIG. 2A, an open quick wrench for pulling a workpiece W (for example, a screw/nut or the like or a hand tool with a polygonal driven end) is shown. A preferred embodiment; "work w" refers to, for example, a screw/nut or the like, or other hand tool having a polygonal driven end that can be driven by a wrench. In this paper, the work object w refers to the driven end driven by the wrench in the work w. The open quick wrench 丨 generally includes: a handle Η for gripping the hand; and an opening drive portion 1 〇 〇 at the Η end of the grip. The opening driving portion 100 preferably includes a first clamping frame 11 having a first abutting wall 114 and a second clamping frame 12 extending substantially from a base portion 121 adjacent to the handle to a free position. The end 122; and a tie chamber 160, which is located in the opening drive portion 1' to accommodate the workpiece w to be pulled. The inner section of the first jaw 110 (the section facing away from the first abutment wall 114) preferably forms an inner recess 112, which can be used during the operation of the wrench idling back and pulling. 144487.doc 1355990 Highlight the corners (see Figure 2A) to make the operation smooth. However, the first clamping jaw 110 may not be provided with the inner concave portion 112' to enlarge the inner side of the second clamping member 12' to accommodate the working object W during the operation of the wrench idling back; this slightly increases the weight of the wrench. A specific effect can be achieved. The second clamping frame 120 includes: a second abutting wall 124' formed on the free end I22 of the second clamping member 12b and facing the first abutting wall 114;
一内壁U6，其自第二抵靠壁}24向第二失顎之内側 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； 一辅助顎退讓孔130，其延伸於該基部12ι内而與該繫件 退讓室128鄰接，且輔助顎退讓孔13〇較佳不貫穿第二夾顎 120 ； 輔助顆140，其局部設於該輔助顎退讓孔13〇内並可彈 陡地（參圖不之彈簧8)縱向滑動於該輔助顎退讓孔130内； 一内部端140，其彈性耦接於輔助顎退讓孔13〇内（藉由 一彈簧S); —限位槽148 ;及 輔助顎限位件15〇，其自第二夾顎12〇之表面經由一限 位孔152延伸至該輔助顎退讓孔130，與該限位槽148耦 口以限制該輔助顎140移動於一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較佳包括·一面對内壁126而可與該内壁 H4487.doc 1355990 126接觸之枕部142、及一用以接觸工作物w之繫件接觸 面，繫件接觸面包括一抵靠面143及一推壓面丨44。較佳的 是’輔助顎140位於未受偏壓之第一位置時，繫件接觸面 與第一夾顎110之第一抵靠壁114間之最窄寬度大致等於工 作物W之尺寸。抵靠面ία大致面對待扳動工作物霤之一接 觸邊緣WS中鄰近基部121之部分（即圖2A中接觸邊緣琛§之 下半部），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144大致面對待扳動工作物貿之 該接觸邊緣WS中背離基部121之部分（即圖2A中接觸邊緣 之上半部），其在開口快速扳手丨於空轉回拉時，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 向輔助顎退讓孔130内撤回。推壓面144較佳具一和緩的弧 面/曲面。抵靠面143與推壓面144之間較佳以一平順弧面/ 曲面相接，亦即，輔助顎14〇的繫件接觸面從抵靠面Μ〕起 以一弧面延伸至推壓面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彼此亦以一弧面/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 Μ的過程滑順而流轉’如此有助於：當操作開口快速扳 手1從夾持工作物W的位罝空轉回拉時，操作者可獲得一 •人到位的平順操作觸感。此相較於US5533428等習知技 術在工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較佳為位於該輔助顎14〇一側、且界定於枕部 144487.doc 向之肩154、内部端146之一肩、及内壁126間之縱 ;:，亦即§亥缺口本身為U形結構，在内壁126之圍繞下 成’冓槽。根據此一結構，輔助顎限位件150耦合於限 钇I48中，使輔助顎140在肩154、156的阻擋下，移動於 未：偏壓之第一位置與一受偏壓之第二位置之間。如圖2。 八根據本發明另一實施例中，限位槽丨4 8亦可為大致 位於辅助顎140内（亦即：與辅助顎14〇之周圍及内壁126相 隔—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 罪面143與待扳動工作物w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之接觸邊緣之中 央。根據另一較佳實施例，辅助顎14〇於該第一位置時， 其抵靠面143與縱向中心線之夹角小於35度，更佳小於25 度，如此，在輔助顎14〇在扳轉工作物w時，輔助顎14〇所 承受之扭力中至少有大部分/或幾乎全部轉換為沿輔助顎 140徑向方向之分力，而使輔助顎14〇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2D之受力分布示 意圖）。根據另一較佳實施例，輔助顎14〇之推壓面144自 一鄰近内壁126之末端延伸、以較佳和緩的弧面/曲面向抵 靠面143延伸’藉此使空轉回拉之過程中，工作物w之接 觸邊緣WS與推壓面144間之施力方向儘量平行於輔助顎 140縱向中心線（或輔助顎退讓孔130之縱向中心線），而使 推壓面144所承受之力大部分或幾乎平行於輔助顎ι4〇之縱 向方向，減少枕部142與内壁126間之磨損。 144487.doc ^^5990 繫件.室160容納待扳動工作物w，其大致位於輔助顎14〇 /、第抵靠壁114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—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贾轉動以完成空轉回拉（於 空轉回拉過程中，工作物霄會進入繫件退讓室128並推壓 辅助顎140)。 —顎口部170界定於第一夹顎11〇之第一抵靠壁114與第 一夾顎120之第二抵靠壁124之間，其寬度大致與待扳動之An inner wall U6 extending from the second abutting wall 24 to the inner side of the second missing; a tie-receiving chamber 128 substantially disposed between the extension line of the second abutting wall 124 and the inner wall 126; An auxiliary retracting hole 130 extending in the base portion 12i to abut the tethering chamber 128, and the auxiliary retracting hole 13 is preferably not penetrated through the second clamping frame 120; the auxiliary piece 140 is partially disposed thereon The auxiliary 颚 颚 孔 〇 并可 并可 并可 并可 并可 并可 并可 并可 并可 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 弹簧 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( a spring S); a limiting groove 148; and an auxiliary limiting member 15A extending from the surface of the second clamping frame 12 via a limiting hole 152 to the auxiliary relief hole 130, and the limit The slot 148 is coupled to the port to limit movement of the auxiliary jaw 140 between an unbiased first position and a biased second position. The auxiliary cymbal 140 preferably includes a occipital portion 142 that faces the inner wall 126 and is in contact with the inner wall H4487.doc 1355990 126, and a tie contacting surface for contacting the workpiece w. The facing surface 143 and a pressing surface 丨44. Preferably, when the auxiliary cymbal 140 is in the unbiased first position, the narrowest width between the tie contacting surface and the first abutment wall 114 of the first jaw 110 is substantially equal to the size of the crop W. The abutting surface ία is substantially opposite to the portion of the contact edge WS in the contact edge WS adjacent to the base 121 (ie, the lower half of the contact edge 图 § in FIG. 2A), which is in the first folder when the workpiece W is operated. 11 〇 co-clamp the work W and apply force to it. The pressing surface 144 is substantially opposite to the portion of the contact edge WS that faces away from the base 121 (ie, the upper half of the contact edge in FIG. 2A), which can be subjected to the idling pullback when the open quick wrench is pulled The upper half of the contact edge ws of the workpiece W is pushed to push, 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 143 and the pressing surface 144 are connected by a smooth curved surface/curved surface, that is, the auxiliary contact surface of the auxiliary cymbal 14 延伸 extends from the abutting surface 以 to a curved surface to push Face 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 in contact with each other by a curved surface/curved surface) to facilitate the sliding of the workpiece w from the contact abutting surface 143. The process of contacting the pressing surface is smooth and flowing. This helps: when the quick-acting wrench 1 is rotated from the position of the clamping work W, the operator can obtain a smooth operation touch of a person in place. sense. Compared with the prior art such as US5533428, it is necessary to repeatedly seek a better application point for the uneven operation process when the work is reversed and pulled back. The present invention obviously greatly enhances the operational convenience. '', the limiting slot 148 is preferably located on the side of the auxiliary cymbal 14 、 and defined between the shoulder 154 of the occipital portion 144487.doc, the shoulder of the inner end 146, and the longitudinal wall 126; § The self-notch itself is a U-shaped structure, and the inner wall 126 is surrounded by a 'groove. According to this configuration, the auxiliary stop member 150 is coupled to the limit I48 such that the auxiliary catch 140 is moved by the shoulders 154, 156 to move between the first position of the bias and the second position of the bias. between. As shown in Figure 2. According to another embodiment of the present invention, the limiting slot 48 may also be a longitudinal notch substantially located within the auxiliary weir 140 (i.e., spaced apart from the inner wall 126 by the distance - distance). In order to obtain better performance, when the auxiliary 〇 14 is in the first position, the contact position of the conviction surface 143 with the contact edge ws of the workpiece w to be pulled is preferably substantially at or slightly lower than the workpiece to be pulled w The center of the contact edge. According to another preferred embodiment, when the auxiliary cymbal 14 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, and thus, the auxiliary 颚 14 is in the 扳 14 When the workpiece w is turned, at least most or almost all of the torsion of the auxiliary cymbal 14 转换 is converted into a component force in the radial direction of the auxiliary 颚 140, and the auxiliary 颚 14 〇 is abutted against the auxiliary 颚 relief hole 130. The hole wall is convenient for driving the work object w (refer to the force distribution diagram of FIG. 2D). According to another preferred embodiment, the pressing surface 144 of the auxiliary cymbal 14 延伸 extends from the end of an adjacent inner wall 126 and extends toward the abutting surface 143 with a preferably gentle curved/curved surface. The direction of the force between the contact edge WS and the pressing surface 144 of the workpiece w is as parallel as possible to the longitudinal center line of the auxiliary 颚140 (or the longitudinal center line of the auxiliary 颚 relief hole 130), so that the pressing surface 144 is subjected to The force is mostly or nearly parallel to the longitudinal direction of the auxiliary 〇4, reducing wear between the occipital portion 142 and the inner wall 126. 144487.doc ^^5990. The chamber 160 houses the workpiece w to be pulled, which is located substantially adjacent to the auxiliary weir 14〇/, the abutting wall 114, and is adjacent to the tether retraction chamber 128, the tether room 160 Formed together with the retreat chamber 128 - a space large enough to allow the opening drive portion 100 to rotate relative to the object to be pulled to complete the idling pull back (in the idling pullback process, the work object will enter the tie retraction chamber 128 And push the auxiliary 颚 140). The 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 first jaw 120, the width of which is substantially the same as the to-be-pushed
工作物w之尺寸相同，使第一夾顎11〇與第二夾顎12〇可共 同扳動該工作物w。The workpieces w are of the same size such that the first jaw 11〇 and the second jaw 12〇 can collectively move the workpiece w.
值得注意的是’習知技術中，如us7，ln，529，為提1 空轉回拉往復操作之功能，扳手之顆口部寬度必需大⑻ 扳動工作物w(亦即顎口部的尺寸與可轉動工作物w的尺1 不一致）’才能配合繫件室的複雜結構及辅助顎的結構 d而本七明令，刖由前述之設計，顎口部1之寬度能） 致與待扳動作物W之尺寸相同，使開σ快速扳手i之爲 驅動部100之外觀、大小幾乎與一般不具空轉回拉、名 復操作機構之開口扳手相同，不但節省製造材料，亦能自 合小尺寸工作物W而製作小型開口快速扳手。而且，如* 所述，本發明輔助140的繫件接觸面與第-錢m之第-抵靠壁114間之最窄寬度亦可大致等於工作物w之尺寸； 故操作者整個操作過程，包括從取得開口快速扳手卜』 將,、頜口。P170抵靠工作物w、扳轉工作物w '而後空轉E 拉、再扳轉X作物W的—連串步驟，是非常平順的。τ 144487.doc •12· 1355990 習知技術所不及。 圖3A至聊示本案鎖^作物w過程中空轉回拉之操作 情形示意。工作物w為六角螺絲，故開口快速板手之開口 驅動部100每回拉一個碟絲遠,, 徊螺絲邊角，相當於扳手旋轉60度， 故於圖3A至3E中扳手逆時針旋轉轄度共為60。。圖从至祀 分別顯示每回拉15。時辅助购〇與工作㈣之接觸邊緣^ 之相對位置。圖3A中’輔助顯140在彈簀S偏壓下抵達未受 偏壓之第-位置，較佳抵靠面143緊臨接觸邊緣ws，於此 罾位置’輔助顎刚可與第一夾顎u。共同夾持該螺絲，故若 、填夺針方向奴轉開口快速扳手，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板手時，螺絲對 輔助顆刚之反作用力，使輔助顯140之推壓面144受力向 辅助顎退讓孔130内撤回，從第—位置往第二位置前進， 形成扳手空轉回拉。如圖3(：細，板手繼續旋轉，在繞過 螺絲一邊角後（如圖3D)，輔助顯14〇重新回到第一位置（參 • ®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 案之申请專利範圍所涵蓋。 【圖式簡單說明】 圖1A至圖1B為本發明之立體示意圖。 圖2A為本發明之平面部視圖。 圖2B為本發明組合後之平面圖。 144487.doc 13 1355990 限位槽為大 力分布示意 圖2C為本發明另一實施例之平®圖，其顯示 致位於輔助顎140内之一縱向缺口。 圖2D為本發明之輔助顆於夾持工作物時之受 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 第二夹顎 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 輔助顎 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 1355990 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 144487.doc - 15-It is worth noting that in the conventional technology, such as us7, ln, 529, in order to improve the function of the reciprocating operation, the width of the mouth of the wrench must be large (8) to move the workpiece w (that is, the size of the mouthpiece) Inconsistent with the ruler 1 of the rotatable work w) 'to match the complex structure of the tie chamber and the structure d of the auxiliary weir, and the design of the above-mentioned design, the width of the mouthpiece 1 can be pulled The size of the object W is the same, so that the appearance of the opening σ quick wrench i and the size of the driving unit 100 are almost the same as those of the open-end wrench which is generally not emptied and pulled back, and the name and operation mechanism is not only saved in manufacturing materials, but also can work in small size. Make a small open quick wrench for the object W. Moreover, as described in *, the narrowest width between the tie contact surface of the auxiliary 140 of the present invention and the first-butting wall 114 of the first money m may also be substantially equal to the size of the work object w; Included from the quick opening wrench to get the opening, the jaw mouth. The series of steps of P170 against the work w, turning the work w' and then idling E and then turning the X crop W is very smooth. τ 144487.doc •12· 1355990 The conventional technology is not as good. Fig. 3A is a schematic view showing the operation of the hollow returning and pulling process of the lock and crop w in the present case. The work w is a hexagonal screw, so the opening drive unit 100 of the quick quick wrench pulls a wire far back, and the screw corner is equivalent to a 60 degree rotation of the wrench, so the wrench is rotated counterclockwise in FIGS. 3A to 3E. The total is 60. . The graph shows from 15 to 15 for each pullback. The relative position of the contact edge of the auxiliary purchase and the work (4). In Fig. 3A, the auxiliary display 140 reaches the unbiased first position under the bias of the magazine S, and the abutting surface 143 is preferably adjacent to the contact edge ws, where the auxiliary position is just the first clamp. u. Hold the screw together, so if you fill the needle in the direction of the needle, you can tighten/unscrew the screw; as shown in Figure 3B, when you rotate the opening fast counterclockwise, the screw is on the auxiliary beam. The reaction force causes the pressing surface 144 of the auxiliary display 140 to be forced to withdraw from the auxiliary retracting hole 130, and advances from the first position to the second position to form a wrench to be idly pulled back. As shown in Figure 3 (: fine, the wrench continues to rotate, after bypassing the corner of the screw (Figure 3D), the auxiliary display 14 〇 returns to the first position (参•3E)' wrench can be clockwise again The screws are screwed/unscrewed. All of the above descriptions are illustrative of the preferred embodiments of the present invention and are not intended to limit the invention. Any other simple changes that are made in accordance with the structure, features, and subject matter of the present 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 view of the present invention. The combined plan view. 144487.doc 13 1355990 The limit groove is a vigorous distribution diagram 2C is a plan view of another embodiment of the present invention showing a longitudinal notch in the auxiliary crucible 140. Figure 2D is an aid to the present invention FIG. 3A to FIG. 3E are schematic diagrams 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 abutment wall 120 Second clip 121 base 122 free end 124 second abutment wall 126 inner wall 128 tie retraction chamber 130 auxiliary retraction hole 140 auxiliary 颚 141 auxiliary 颚 body 142 occupant 143 abutment surface 144 push surface 146 inner end 148 Limiting groove 144487.doc 1355990 150 Auxiliary 颚 limiter 152 Limiting hole 154 Shoulder 156 of the occiput 142 The shoulder of the internal end 146 160 The fitting chamber 170 The mouth part AP The force point D The force distribution H The handle S Spring W such as parts and other work 144487.doc - 15-