M293819 八、新型說明： 【新型所屬之技術領域】 本新型是關於一種齑勒 …备 具的衝擊桿，特別是指一種 可IV低氣動工具鎖緊扭力之衝擊桿。 【先前技術】 氣動工具之衝擊裝置是一種組 接氣動工具之轉子及工具頭，以帶==’並可銜 或者反轉旋鬆工件之裝置，以下所正轉鎖緊工件 之德方付么基士 τ所口月的正轉係由氣動工具 後方在則看％，工具頭如果順時針旋轉稱為「 反時針轉動稱為「反轉」，當氣動工具「正 日」册 工件螺緊，「反轉」時將帶動工件螺鬆。」才以一 &為了達到前述目的，以往氣動工具之衝擊裝置ι的構 造大致如圖卜2所示，包含：_個衝擊架u、至少—個衝 #塊12’以及—支與圖中未示出之_卫具頭連接的衝擊桿 13’其”衝擊架U包括兩塊間隔平行之架設塊⑴、⑴ ’以及將兩者間架設在一起的-定位插銷113、一限擺插銷 114’在架設塊112上具有一位在中央並與圖中未示出之一 轉子連動地卡合的卡合孔115。而該衝擊塊12是可偏擺地 架：在該等架設塊111、112間，具有-第-側面121、一 與第一側面121間隔之第二側面122、一貫穿該等側面⑵ 、122之衝擊通孔123、一銜接在該等側面^丨、a〗周緣 的外環面124、一自外環面124往中央凹設之支點凹部125 ，以及一自外環面124往中央凹陷且寬度大於插銷114之直 捏的限位凹部126 ’其中該衝擊通孔123上具有兩個外擴部 M293819 l27，每一外擴部l27上皆具有一個抵靠斜面128。 而習知衝擊桿13是沿著一旋轉中心13〇正轉及反轉， 包括一圓柱狀之中心軸131，以及一個自該中心軸131往徑 向外端突出並對應衝擊塊12之衝擊通孔123的衝擊突部 U2，上述衝擊突部132具有一圍繞該旋轉中心13〇設置的 外環面133、一自外環面133往中心軸131延伸的正轉衝擊 面134，以及一自外環面133往中心軸丨31延M293819 VIII. New description: [New technical field] The new type is related to a shock rod of a 齑勒..., especially a shock rod with a low-pneumatic tool locking torque. [Prior Art] The impact device of the pneumatic tool is a rotor and a tool head that are combined with a pneumatic tool, and the device with the ==' can be rotated or reversed to loosen the workpiece. The positive rotation of Koshiwon's mouth is seen by the rear of the pneumatic tool. If the tool head rotates clockwise, it is called "counterclockwise rotation, which is called "reverse rotation". When the pneumatic tool "day" is tightly screwed, When "reverse", the workpiece will be loosened. In order to achieve the above-mentioned purpose, the structure of the impact device ι of the pneumatic tool in the past is substantially as shown in FIG. 2, and includes: _ an impact frame u, at least a punch # block 12', and a branch The impact bar 13' connected to the guard head is not shown. The impact frame U includes two spaced-apart erected blocks (1), (1)', and a positioning pin 113, a limit pin 114 for erecting the two together. 'The erection block 112 has a latching hole 115 at the center and engaged with one of the rotors not shown in the figure. The impact block 12 is a yawable rack: at the erection block 111, 112 has a first side 121, a second side 122 spaced apart from the first side 121, an impact through hole 123 extending through the sides (2), 122, and a peripheral edge of the side The outer ring surface 124, a fulcrum recess 125 recessed from the outer ring surface 124 toward the center, and a limiting recess 126' which is recessed from the outer ring surface 124 toward the center and has a width larger than that of the pin 114, wherein the impact through hole 123 There are two external expansion parts M293819 l27, and each of the outer expansion parts l27 has an abutting slope 12 8. The conventional impact rod 13 is forwardly and reversely rotated along a center of rotation 13 ,, including a cylindrical central shaft 131, and a radially outer end protruding from the central shaft 131 and corresponding to the impact block 12. The impact protrusion U2 of the impact through hole 123 has an outer ring surface 133 disposed around the rotation center 13 , a forward rotation surface 134 extending from the outer ring surface 133 toward the central axis 131 , and a From the outer annulus 133 to the central axis 丨31
…該等衝擊面〜之一延伸線136交= 桿13的旋轉中心13 0上。 如圖2所示，當衝擊架u被圖中未示出之轉子驅動反 轉時’會帶動衝擊塊12之—外擴部127的抵靠斜面128往 衝擊桿13的反轉衝擊面135靠抵，並因此撥動該衝擊桿13 =轉以旋鬆卫件。相反的’當衝擊架u被轉子驅動而正轉 日寸，該衝擊塊12的另-個抵靠斜面128會往衝擊桿13的 册π衝辜面134罪抵，並因此撥動該衝擊桿丨3正轉，最 帶動工具頭正轉鎖緊工件。亦即，無論是正轉或者反轉 该等衝擊面134、135都受到來自抵靠斜面m的垂直衝 ’以產生最大的推力。 習知氣動工具雖铁Γ/ U m 雖然可以利用以上_的設計達到正轉鎖 工件，以及反轉旋鬆工株的曰^ g 件的目的，但是一般氣動工具在 緊工件的過程中，氣動 、 風動工具的扭力只要到達設定值，就 以鎖緊工件，過高的知力巧〜 斤 0扭力反而各易造成工件的損傷，惟 氣動工具在反轉作工時，敕 才旱乂大的扭力可以快速地拆解工/ ’顯然就一般氣動工且的使& 一的便用狀悲，正轉及反轉的功能： 6 M293819 同，其中正轉需要的扭力較反轉需要的扭力低。 惟習知軋動工具在衝擊桿13之衝擊突部132上設有兩 個斜度相同且延伸線136通過旋轉中心13〇之衝擊面〗34、 135，此種設計將使得衝擊& 12 ^論是帶動衝擊才旱η正轉 或者反轉，都是以最大的衝力驅動，並產生相同的扭力值 ’而無法因應氣動m使用情況，使正轉及反轉產生 不同的扭力，根據一般的設計上，氣動工具之正轉及反轉 、才力大、力在40G Ibf·ft。雖然、有些氣動工具可以調整進氣 量，以改變衝擊桿13的轉動速度及扭力，但此種設計在使 用時需要經過調整才能產生不同的扭力，❹上並不方便 ’且依實際測試，即使經由調整，一般...the impact surfaces ~ one of the extension lines 136 intersect = the center of rotation of the rod 13 on the ground. As shown in FIG. 2, when the impact frame u is reversed by the rotor drive (not shown), the impact block 12 will be driven to abut against the inclined surface 128 of the outer expansion portion 127 toward the reverse impact surface 135 of the impact rod 13. Abut, and therefore move the impact rod 13 = turn to loosen the guard. Conversely, when the impact frame u is driven by the rotor and is rotated forward, the other abutment slope 128 of the impact block 12 will sin against the π punching surface 134 of the impact rod 13, and thus the impact rod is toggled.丨3 is turning forward, and the tool head is driven to lock the workpiece. That is, the impact faces 134, 135, whether they are forward or reverse, are subjected to a vertical punch from the bevel m to produce the maximum thrust. Although the pneumatic tool is a shovel/U m, although the above design can be used to achieve the purpose of positively locking the workpiece and reversing the splicing of the workpiece, the pneumatic tool is generally pneumatic during the process of tightening the workpiece. As long as the torque of the pneumatic tool reaches the set value, the workpiece is locked, and the high-precision skill is too high. The torque of the kg is easy to cause damage to the workpiece. However, when the pneumatic tool is working in reverse, it is only a big problem. Torque can be dismantled quickly / 'Obviously the general pneumatic work and the function of the use of a sorrow, forward and reverse: 6 M293819 same, where the torque required for forward rotation is less than the torque required for reversal low. However, the conventional rolling tool is provided with two equal slopes on the impact protrusion 132 of the impact rod 13 and the impact surface 34, 135 of the extension line 136 passing through the center of rotation 13 ,, this design will make the impact & 12 ^ On the basis of the impact of the impact of drought η forward or reverse, are driven by the maximum impulse, and produce the same torque value 'can not respond to the use of aerodynamic m, so that the forward and reverse produces different torque, according to the general In design, the forward and reverse rotation of the pneumatic tools is strong, and the force is 40G Ibf·ft. Although some pneumatic tools can adjust the intake air amount to change the rotational speed and torque of the impact rod 13, this design needs to be adjusted to produce different torques when used. It is not convenient to use and is tested according to actual conditions, even if Via adjustment, generally
的扭力還是高達㈣―，此扭力值對於鎖緊工I 操作仍偏高。 【新型内容】 本新型之目的係在提供一種可以降低氣動工具之鎖緊 扭力之衝擊桿。 /、 本新型之衝擊桿係受到氣動工具之一衝擊塊所衝擊， 並可沿著-旋轉中心、正轉及反轉，上述衝擊桿包含：—中 广轴’以及至少—個自該中心軸徑向突出並對應衝擊塊的 衝擊突部’每個衝擊突部都具有一正轉衝擊面及—反轉衝 擊面，上述正轉衝擊面具有—個與中心軸接連的正基緣， 此正基緣與旋轉中心間具有-條正假想連線，而反轉衝擊 面具有-個與中心軸接連的反基緣，此反基緣與旋轉中心 間具有一條反假想連線。 M293819The torque is still as high as (4)-, and this torque value is still high for the locker I operation. [New content] The purpose of the present invention is to provide an impact rod that can reduce the locking torque of a pneumatic tool. The impact rod of the present type is impacted by an impact block of a pneumatic tool and can be rotated along the center of rotation, forward and reverse, and the impact rod includes: - a central axis and at least one from the central axis Each of the impact protrusions having a radial direction and corresponding to the impact block has a positive impact surface and a reverse impact surface, and the forward rotation surface has a positive base edge connected to the central axis, and the positive base edge There is a positive imaginary connection with the center of rotation, and the reverse impact surface has an anti-base edge connected to the central axis, and the anti-base edge has an anti-imaginary connection with the center of rotation. M293819
本新型的特徵在於：該衝擊突部之正、反轉衝擊面為 不對稱設計，其中該正轉衝擊面到正假想連線間具有一個 正爽角’而該反轉衝擊面到反假想連線間具有一個反爽角 ，該正夾角的角度大於反夾角的角度，且正轉衝擊面是介 於反轉衝擊面與正假想連線間。藉正、反轉衝擊面角度設 計的不同，可以使衝擊桿之正轉衝擊面在受到衝擊時產生 較小的扭力，如此氣動工具即可在不必調整其他元件的情 況下’達到自動降低鎖緊扭力的目的。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配S爹考圖式及較佳實施例的詳細說明中，將可清楚 的呈現。 .α 茶閱圖3、4,本新型衝擊桿2之第—較佳實施例亦^ 到至少一衝擊塊3所衝擊，所述衝擊塊3具有一個封閉# 衝擊通孔31、一個自塊體之一外周面往中央凹設的支點四 部32,以及-自塊體之外周面往中央凹設的限位凹部”， 其中’該衝擊通孔31具有兩個往徑向外端擴張的外擴苟 3η，每-個外_ 311都具有一個抵靠斜面312，而在一 般氣動工具的設計上，該衝擊塊3的形式及種類很多，但 所有的衝擊塊3都具有氣個抵靠斜面312，以便衝擊推送衝 擊桿2正轉或者反轉，而本新叙彳轉桿2在使料，可 :配合其他形式之衝擊& 3使用，亦即，不以實施例㈣ 路者為限，由於本新型之改g纟 文良/、5亥衝擊塊3的構造無關， 此處不再舉例說明。 M293819 本新型之衝擊桿2包含：—可沿著-旋轉一 20正轉 的中心軸21，以及兩個自該中心軸21徑向突出的衝 旦 ”2 _L述衝擊突部22的數量是對應該衝擊塊3的數 置’亦即’本實施例之衝擊桿2上的衝擊突部22數量為兩 p ’則與其對應之衝擊塊3的數量即為兩個，藉由衝擊突 4 22设置位置的錯位，使每個衝擊突部u得以對應衝擊 塊3之衝擊通孔3卜由於本新型之設計與衝擊突部η及衝 擊塊3的數量無關，圖4中只示意其中_個衝擊突部η盘 一個衝擊塊3的對應關係。 〃、 :本新型每個衝擊突部22都具有—圍繞旋轉中心2〇 勺卜々面221、-自外環面221之—側緣往中心軸2】之矛 面延伸的反轉衝擊面222，以及一自外環面221之另—側緣 有表面延伸的正轉㈣ ”有一個與中心軸21接連的反基緣224,上述 反基緣224到旋轉中心2〇間具有—條反假想連線奶，此 反假，連線225與反轉衝擊面如間具有_個反夹角咖， 在本貫施例中該反夾角226為〇度。 、而該正轉衝擊面223上亦具有—個與中心軸21之表面 接連的正基緣227，此正基緣奶到旋轉中心2〇間亦具有 一條正假想連線228，上述正假想連線似到正轉衝擊面 223間亦具有一個正夾角229 ’其中該正失角㈣的角产大 ==的角度，且該正轉衝擊面奶位在兩條:想 8之間’在本實施例中該等衝擊突部22的正 轉衝擊面223是相互平行。而該正央角3是Κ度，但在 M293819 貫施時該正失角229亦可介於5〜60度間。 如圖5所示，當衝擊塊3之一抵靠斜面M2靠向衝擊 桿2之該等反轉衝擊面222的其中之一時，由於該反轉衝 擊面222之斜度正好和衝擊塊3之抵靠斜面312相配合， 亦即，抵靠斜面312給予反轉衝擊面奶的假想力f會大 致與反轉衝擊面222垂直，因此，衝擊塊3在撥動衝擊桿2 轉動％會產生較大的扭力。如圖4所示，當衝擊塊3正轉 而使得其中-個抵靠斜面312靠向衝擊桿2的一個正轉衝 4面223時，由於此正轉衝擊面223的斜度已經改變益法 和抵靠斜面312貼靠，亦即，抵靠斜面312的假想力F、，不 兵正轉衝擊面223垂直，因此，實際推動正轉衝擊面223 的力量是垂直於正轉衝擊面223的分力，此分力自然小於 U F ’此種對應方式可以有效的降低衝擊桿2輸出的扭 力。 亦即，本新型將衝擊桿2上的正、反轉衝擊面如、 223設計成不同斜度，其中抵靠斜面312的衝力與反轉衝擊 面222垂直，另一抵靠斜面312的衝力不與正轉衝擊面223 垂直的叹e十’不僅未見於習知氣動工具之衝擊桿，該項不 對稱衝擊斜面222、223的設計，更可使氣動工具在不必調 整其他元件的情況下，使衝擊桿2在正轉時之扭力低於反 轉時之扭力，故本新型該氣動工具之衝擊桿2不僅構造新 穎，使用時更可達到降低鎖緊扭力以符合實際需求的目的 Ο 參閲圖6，本新型衝擊捍2之第二較佳實施例的構造大 10 M293819 致與第一實施例相同，不同之處在於：該反夾角226為j 5 度，此反夾角226亦小於正夾角229，而在本新型的設計上 ，只要正夾角229的角度大於反夾角226的角度，且該正 轉衝擊面223位在兩條假想連線225、228之間，即可以達 到預期的功效。 惟以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及5兒明内容所作之簡單的等效變化與修飾，皆仍屬本 新型專利涵蓋之範圍内。 【圖式簡單說明】 固1疋種^知氣動工具之一衝擊裝置的立體分解圖 ^圖2是該習知衝擊裝置之一組合後視圖，顯示該衝擊 放置之—衝擊桿及—衝擊塊的對應關係； 圖3是本新型衝擊桿之第一較佳實施例的後視圖；The novel is characterized in that the positive and reverse impact surfaces of the impact protrusion are asymmetric design, wherein the forward rotation impact surface has a positive refreshing angle between the imaginary connection lines and the reverse impact surface to the anti-imaginary connection There is a reverse refreshing angle between the lines, the angle of the positive angle is greater than the angle of the reverse angle, and the forward impact surface is between the reverse impact surface and the positive imaginary line. By different design of the positive and reverse impact surface angles, the positive impact surface of the impact rod can generate less torque when subjected to impact, so that the pneumatic tool can automatically reduce the lock without adjusting other components. The purpose of torque. The above and other technical contents, features and effects of the present invention will be apparent from the following description of the drawings and the detailed description of the preferred embodiments. Fig. 3 and 4, the first preferred embodiment of the present type of impact bar 2 is also impacted by at least one impact block 3 having a closed #impedance through hole 31 and a self block. One of the four fulcrums 32 recessed toward the center of the outer peripheral surface, and a recessed recess recessed from the outer peripheral surface of the block to the center, wherein the impact through hole 31 has two outer expansions extending toward the radially outer end苟3η, each of the outer _ 311 has an abutting slope 312, and in the design of a general pneumatic tool, the impact block 3 has many forms and types, but all the impact blocks 3 have a gas abutting slope 312. In order to impact or push the impact rod 2 forward or reverse, and the new revolving rod 2 is in use, which can be used in conjunction with other forms of impact & 3, that is, not limited to the embodiment (4). Because the structure of the present invention is irrelevant, the structure of the 5th impact block 3 is not illustrated here. M293819 The impact rod 2 of the present invention comprises: - a central axis 21 which can be rotated by -20 forwards, And the number of the two punches 22, which are radially protruded from the central axis 21, are corresponding to the number of the impact protrusions 22 The number of the impact blocks 3, that is, the number of the impact protrusions 22 on the impact rod 2 of the present embodiment is two p', and the number of the impact blocks 3 corresponding thereto is two, and the position is set by the impact protrusions 4 22 . Displacement, so that each impact protrusion u can correspond to the impact through hole 3 of the impact block 3. Since the design of the present invention is independent of the number of impact protrusions η and the impact block 3, only one of the impact protrusions is illustrated in FIG. η disk a corresponding relationship of the impact block 3. 〃, : Each of the impact protrusions 22 of the present type has an inverted impact surface 222 extending around the center 2 of the rotation center 2, and the side edge from the outer ring surface 221 to the central axis 2 And a forward rotation (four) having a surface extending from the other side edge of the outer annular surface 221" has an anti-base edge 224 connected to the central axis 21, and the anti-base edge 224 has a reverse anti-imaginary between the rotation center 2 Connected milk, this anti-counterfeiting, the connection 225 and the reverse impact surface have a _ reverse angle angle, in the present embodiment the reverse angle 226 is the twist. And the forward impact surface 223 is also There is a positive base edge 227 connected to the surface of the central axis 21, and the positive base edge milk also has a positive imaginary connection 228 between the centers of rotation 2, and the above-mentioned imaginary connection seems to have a positive transition surface 223 Positive angle 229 'where the angle of the positive declination (4) is greater than the angle of ==, and the forward rotation impact surface is between two: 8: 'In this embodiment, the forward rotation of the impact protrusion 22 The impact faces 223 are parallel to each other, and the positive center angle 3 is a twist, but the positive corner angle 229 may also be between 5 and 60 degrees when the M293819 is applied. As shown in FIG. 5, when one of the impact blocks 3 abuts against one of the reverse impact surfaces 222 of the impact rod 2 against the slope M2, since the slope of the reverse impact surface 222 is exactly the same as that of the impact block 3 The imaginary force f against the inclined surface 312 is substantially perpendicular to the reverse impact surface 222. Therefore, the impact block 3 is rotated by the impacting rod 2 Large torque. As shown in Fig. 4, when the impact block 3 is rotated forward such that one of the abutment slopes 312 abuts against a forward rotation 4 surface 223 of the impact rod 2, due to the slope of the forward rotation impact surface 223 The benefit method has been changed to abut against the slope 312, that is, the imaginary force F against the slope 312, and the normal impact surface 223 is vertical. Therefore, the force that actually pushes the forward impact surface 223 is perpendicular to the forward rotation. The component of the impact surface 223, which is naturally smaller than the UF', can effectively reduce the torque of the output of the impact rod 2. That is, the present model will design the positive and negative impact surfaces on the impact rod 2, such as 223 Different slopes, wherein the impact against the inclined surface 312 is perpendicular to the reverse impact surface 222, and The impact of the inclined surface 312 is not perpendicular to the normal impact surface 223. Not only is it not seen in the impact rod of the conventional pneumatic tool, the design of the asymmetric impact slope 222, 223 allows the pneumatic tool to be adjusted. In the case of other components, the torsion force of the impact rod 2 during forward rotation is lower than that of the reverse rotation, so the impact rod 2 of the pneumatic tool of the present invention is not only novel in construction, but also can reduce the locking torque to meet the actual use. The purpose of the demand Ο Referring to Fig. 6, the construction of the second preferred embodiment of the present invention is 10 M293819, which is the same as the first embodiment, except that the reverse angle 226 is j 5 degrees. The angle 226 is also smaller than the positive angle 229. In the present design, as long as the angle of the positive angle 229 is greater than the angle of the reverse angle 226, and the forward impact surface 223 is between the two imaginary lines 225, 228, Can achieve the desired effect. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the content of the five children. , are still within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is a combined rear view of one of the conventional impact devices, showing the impact placement of the impact bar and the impact block. Corresponding relationship; Figure 3 is a rear elevational view of the first preferred embodiment of the present invention;
上圖4疋该較佳實施例與一衝擊塊的一組合後視圖，圖 中°亥衝擊塊即將推動衝擊桿正轉； 圖5是一類似圖 推動衝擊桿反轉；及 4的組合後視圖’圖中該衝擊塊即將 °疋本新型衝擊桿之第二較佳實施例的後視圖。 M293819 【主要元件符號說明】 2 衝擊桿 227 正基緣 20 旋轉中心 228 正假想連線 21 中心轴 229 正夾角 22 衝擊突部 3 衝擊塊 221 外環面 31 衝擊通孔 222 反轉衝擊面 311 外擴部 223 正轉衝擊面 312 抵靠斜面 224 反基緣 32 支點凹部 225 反假想連線 33 限位凹部 226 反夾角 12Figure 4 is a rear view of the combination of the preferred embodiment and a shock block, in which the ° shock block is about to push the impact bar forward; Figure 5 is a similar view pushing the impact bar reverse; and 4 combined rear view The impact block in the figure is a rear view of the second preferred embodiment of the present type of impact bar. M293819 [Description of main component symbols] 2 Impact rod 227 Positive base edge 20 Rotation center 228 Positive imaginary connection 21 Central axis 229 Positive angle 22 Impact protrusion 3 Impact block 221 Outer ring surface 31 Impact through hole 222 Reverse impact surface 311 External expansion Part 223 forward impact surface 312 abuts slope 224 reverse base edge 32 fulcrum recess 225 anti-imaginary connection 33 limit recess 226 reverse angle 12