200821098 九、發明說明： 【發明所屬之技術領域】 本發明係與一種棘輪扳手有關，更詳而言之，特別是指一 種可有效簡化構造，降低生產製造與組裝成本，並可提高扳轉 操作穩定性與順暢度之氣動/電動棘輪扳手結構。 【先前技術】 按，習知常見之氣動棘輪扳手，如我國公告編號第248718 號與第410716號之專利案，已揭露其大致包含有一握柄，該握 柄内部安裝有一氣式驅動機構，前端安裝有一棘輪座，並於棘 輪座後端轴向穿置有一曲軸，用以連動一棘輪組作左、右往復 擺動，且棘輪座上安裝有一棘輪站與一轉鈕，該棘輪站可受棘 輪組擺動而驅轉作動，該轉鈕則用以控制切換棘輪砧之正轉與 逆轉；惟，上述氣動棘輪扳手之棘輪座與棘輪砧均為固定角度 設計，因此，無法隨著操作環境或空間之限制，任意調整適合 之扳轉操作角度，致使功能性受到侷限；據此，乃有業者在棘 輪座上設置一樞轉點，並將連結驅動機構與棘輪組之曲軸進行 改良，使該棘輪座與棘輪砧具有任意角度調整功能，該驅動機 構之動力亦可順利地傳遞到棘輪組上，如美國專利號碼第 5784934號專利案，便是其中一例。 t發明内容】 惟，目前包含上述美國專利案之各種氣動/電動棘輪扳手， 其棘輪座與棘輪砧雖可作任意角度調整，但整體構造複雜，且 5 200821098 組成構件數多，使得生產製造與組裝成本較高，也容易發生故 障損壞，而增加維修費用，以及縮短使用壽命，扳轉操作之穩 定性與順暢度亦不甚理想，確有加以改善之必要。 本發明提供一種具角度調整之氣動/電動板手，主要包含有 一握柄、一驅動機構、一棘輪殼座、一棘輪殼體、一曲柄、一棘 輪組、一轉鈕及一棘輪砧等組成構件；其中，該驅動機構與棘輪 組間之曲軸係進一步包含有一入力軸、一軸概及一出力軸，該入 力軸一端與驅動機構相連結，可供動力輸入，該出力軸一端則與 棘輪組相連結，可用以驅動棘軛作左、右往復擺動，該軸襯則是 樞設於入力軸與出力軸間，並構成一萬向接頭者。 本發明所提供之氣動/電動棘輪扳手，利用入力軸、軸襯與 出力軸間所構成之萬向接頭結構，不僅可使入力軸與出力軸受 棘輪組連動產生相對彎折角度時，仍能順利傳遞動力，同時， 由於整體構造簡單，組成構件數少，因此，更可有效降低生產 與組裝成本，以及提高扳轉操作穩定性與順暢度。 【實施方式】 請參閱圖一至圖七，本發明所提供之具角度調整之氣動/電 動板手，主要包括有：一握柄（1)、一驅動機構（2)、一棘輪殼座 (3)、一棘輪殼體（4)、一棘輪站（5)、一轉鈕（6)、一棘輪組（7) 以及一曲轴（8)所組成。 該握柄（1)内部安裝有一可為氣動/電動馬達之驅動機構 6 200821098 (2)，該握柄（1)前端更安裝有一棘輪殼座（3)，並於棘輪殼座（3) 上活動樞設有一棘輪殼體（4)，該棘輪殼體（4)可供安裝一棘輪砧 (5)與一轉鈕（6); 如圖三所示，該棘輪殼體（4)前端内部可嵌設有一内周面分 佈有多數棘齒（71)之棘輪組（7)，並於棘輪組（7)外側預定部位設 有一弧形凹槽（72)，該弧形凹槽（72)以供活動接觸並定位有一驅 動軸襯（73)，而該驅動軸襯（73)係設置有穿孔（731); 另，該棘輪殼體（4)内部軸向穿置有一曲軸（8)，如圖四所 示，該曲軸（8)—端與握柄（1)内部其驅動機構（2)之卡掣槽（21) 相互連結，使曲軸（8)可受驅動機構（2)其帶動旋轉，該曲軸（8) 另一端更延伸有一偏心凸緣（8 31 )，該偏心凸緣（8 31)與驅動軸襯 (73)之穿孔（731)相互穿套，其後經由曲軸（8)帶動驅動軸襯（73) 旋轉的同時，該驅動軸襯（73)會於弧形凹槽（72)上下移動，以使 曲軸（8)帶動棘輪組（7)作左、右往復擺動之動作； 如圖五所示，該曲軸（8)進一步包含有一入力轴（81)、一轴 襯（82)及一出力軸（83);該入力軸（81)後端延伸有一卡掣柱 (811)，可供驅動機構（2)相對端形成之卡掣槽（21)相互穿置嵌卡 定位，前端則延伸有二相對之凸耳（812)，並於該等凸耳（812) 上相對貫設有一銷孔（813);該出力軸（83)前端係形成有該偏心 凸緣（831)，後端則同樣延伸有二相對之凸耳（832)，並於該等凸 耳（812)上相對貫設有一銷孔（833)，且該出力軸（83)係可再套至 7 200821098 一軸承（85);該轴襯（82)係呈矩形體狀，且二端在相差九十度之 任二個側壁上各貫設有一銷孔（821)，使該軸襯（82)二端銷孔 (821)之孔位方向恰好相差九十度，並可分別以一軸銷（84)與入 力軸（81)二相對凸耳（812)之銷孔（813)，以及出力軸（83)二相對 凸耳（832)之銷孔（833)相互穿伸樞設，而構成一萬向接頭。 為供進一步暸解本發明構造特徵、運用技術手段及所預期達 成之功效，茲將本發明使用方式加以敘述，相信當可由此而對本 發明有更深入且具體之瞭解，如下所述： 請再參閱圖三、圖七與圖八，由於本發明氣動/電動棘輪扳 手之棘輪殼體（4)係活動樞設於棘輪殼座（3)上，且該棘輪砧 (5)、轉鈕（6)、棘輪組（7)可與棘輪殼體（4)組裝成一體結構，因 此，當使用者操作該棘輪扳手時，便可藉由棘輪殼體（4)與棘輪 殼座（3)間之相對樞轉擺動，任意地調整連動該棘輪砧（5)之角度 位置，如圖八所示，俾令使用者得以依據不同的工作環境或空 間，來順利扳轉操作該棘輪扳手；需特別說明的是，由於該棘輪 組（7)與棘輪砧（5)相同，會隨著棘輪殼體（4)調整擺動，並連動 位於棘輪組（7)與驅動機構（2 )間之曲軸（8 )。 因此，藉由本發明曲軸（8)所構成之萬向接頭結構，該曲軸 (8)之出力轴（83)便可順利地隨著棘輪組（7)擺動，而與曲軸（8) 之入力軸（81)形成任意彎折角度，並使該入力軸（81)與出力軸 (83)在任意彎折角度時，亦能產生動力傳遞作用，而不會影響驅 8 200821098 —— 動機構（2)與棘輪組（7)間之連動； 據此，俾使該棘輪扳手之棘輪砧（5)隨棘輪殼體（4)樞轉調整 任意操作角度時，仍能順利地達到動力傳遞作用，以應付各種扳 轉工作，同時，由於該曲軸（8)結構相當簡單，組成構件少，操 作穩定順暢’因此，可有效降低生產製造與組裝成本，亦可減少 故p羊率與延長使用壽命。 綜上所述，本發明在同類產品中實有其極佳之進步實用性， 同時遍查國内外關於此類結構之技術資料，文獻中亦未發現有相 同的構造存在在先，是以，本發明實已具備發明專利要件，爰依 法提出申請。 惟，以上所述者，僅係本發明之一較佳可行實施例而已，故 牛凡應用本發明㈣書及中請專利範圍所為之等效結構變化，理 應包含在本發明之專利範圍内。 【圖式簡單說明】 設置曲軸之立體示意圖。200821098 IX. Description of the Invention: [Technical Field] The present invention relates to a ratchet wrench, and more particularly, to an embodiment which can effectively simplify the structure, reduce the manufacturing and assembly costs, and improve the turning operation. Pneumatic/electric ratchet wrench construction for stability and smoothness. [Prior Art] According to the conventional pneumatic ratchet wrench, as disclosed in the patents No. 248718 and 410716 of the Chinese Patent No. 241,718, it is disclosed that it generally includes a grip, and a pneumatic drive mechanism is mounted inside the grip. A ratchet seat is mounted, and a crankshaft is axially disposed at a rear end of the ratchet seat for interlocking a ratchet wheel for left and right reciprocating swing, and a ratchet station and a rotary button are mounted on the ratchet seat, and the ratchet station can be ratcheted The group swings and drives, and the button is used to control the forward and reverse rotation of the switching ratchet anvil; however, the ratchet seat and the ratchet anvil of the aerodynamic ratchet wrench are both fixed angle design, and therefore cannot follow the operating environment or space. The limitation of the arbitrarily adjusting the suitable turning operation angle causes the functionality to be limited; accordingly, the manufacturer sets a pivot point on the ratchet seat and improves the crankshaft connecting the driving mechanism and the ratchet set to make the ratchet The seat and the ratchet anvil have an arbitrary angle adjustment function, and the power of the driving mechanism can also be smoothly transmitted to the ratchet group, such as the US Patent No. 5784934 Case, is one example. However, the present invention includes various pneumatic/electrical ratchet wrenches of the above-mentioned U.S. patents, and the ratchet seat and the ratchet anvil can be adjusted at any angle, but the overall structure is complicated, and 5 200821098 has a large number of components, which makes the manufacturing and manufacturing. The assembly cost is high, and it is easy to cause fault damage, which increases the maintenance cost and shortens the service life. The stability and smoothness of the turning operation are not ideal, and it is necessary to improve it. The invention provides a pneumatic/electrical wrench with angle adjustment, which mainly comprises a handle, a driving mechanism, a ratchet housing, a ratchet housing, a crank, a ratchet set, a rotary knob and a ratchet anvil. The crankshaft system between the driving mechanism and the ratchet set further includes an input shaft, a shaft and an output shaft, and one end of the input shaft is coupled with the driving mechanism for power input, and one end of the output shaft and the ratchet set The phase connection can be used to drive the yoke to swing left and right. The bushing is pivoted between the input shaft and the output shaft and constitutes a universal joint. The pneumatic/electrical ratchet wrench provided by the invention utilizes the universal joint structure formed by the input shaft, the bushing and the output shaft, and can not only make the input shaft and the output shaft are relatively bent by the ratchet wheel group, but still can smoothly The power is transmitted. At the same time, since the overall structure is simple and the number of components is small, the production and assembly costs can be effectively reduced, and the stability and smoothness of the turning operation can be improved. [Embodiment] Referring to FIG. 1 to FIG. 7 , the angle/adjustable pneumatic/electric wrench provided by the present invention mainly includes: a handle (1), a driving mechanism (2), and a ratchet housing (3). ), a ratchet housing (4), a ratchet station (5), a knob (6), a ratchet set (7) and a crankshaft (8). The handle (1) is internally provided with a drive mechanism 6 200821098 (2) which can be a pneumatic/electric motor. The front end of the handle (1) is further provided with a ratchet housing (3) and is mounted on the ratchet housing (3). The movable pivot is provided with a ratchet housing (4) for mounting a ratchet anvil (5) and a rotary button (6); as shown in Fig. 3, the front end of the ratchet housing (4) A ratchet set (7) having a plurality of ratchets (71) distributed on the inner peripheral surface may be embedded, and an arcuate groove (72) is provided at a predetermined portion outside the ratchet set (7), the arcuate groove (72) For driving contact and positioning a drive bushing (73), the drive bushing (73) is provided with a perforation (731); in addition, the ratchet housing (4) is axially disposed with a crankshaft (8) As shown in FIG. 4, the crankshaft (8) end is connected to the latching groove (21) of the driving mechanism (2) inside the handle (1), so that the crankshaft (8) can be driven by the driving mechanism (2). Rotating, the other end of the crankshaft (8) further has an eccentric flange (8 31 ), and the eccentric flange (83) and the perforation (731) of the drive bushing (73) pass through each other, and then pass through the crankshaft (8). Drive the drive While the bushing (73) rotates, the drive bushing (73) moves up and down in the arcuate groove (72) to cause the crankshaft (8) to drive the ratchet set (7) to swing back and forth; As shown in FIG. 5, the crankshaft (8) further includes an input shaft (81), a bushing (82) and a power output shaft (83); a rear end of the input shaft (81) has a clamping post (811). The latching grooves (21) formed by the opposite ends of the driving mechanism (2) are inserted and positioned with each other, and the front end extends with two opposite lugs (812) and is relatively disposed on the lugs (812). There is a pin hole (813); the front end of the output shaft (83) is formed with the eccentric flange (831), and the rear end also extends with two opposite lugs (832), and on the lugs (812) A pin hole (833) is relatively disposed, and the output shaft (83) can be further sleeved to 7 200821098 a bearing (85); the bushing (82) is in a rectangular shape, and the two ends are different by 90 degrees. A pin hole (821) is disposed on each of the two side walls, so that the hole direction of the two end pin holes (821) of the bushing (82) is exactly ninety degrees apart, and can be respectively a shaft pin (84) Input shaft (8 1) The pin holes (813) of the two opposite lugs (812) and the pin holes (833) of the output shaft (83) and the opposite lugs (832) are mutually pivoted to form a universal joint. For a further understanding of the structural features of the present invention, the technical means, and the intended effect, the present invention will be described. It is believed that the present invention may be further understood and understood as follows: 3, FIG. 7 and FIG. 8 , the ratchet housing (4) of the pneumatic/electric ratchet wrench of the present invention is pivotally mounted on the ratchet housing (3), and the ratchet anvil (5) and the rotary knob (6) The ratchet set (7) can be assembled with the ratchet housing (4), so that when the user operates the ratchet wrench, the relative position between the ratchet housing (4) and the ratchet housing (3) can be utilized. Pivoting and swinging, arbitrarily adjusting the angular position of the ratcheting anvil (5), as shown in Figure 8, the user can smoothly operate the ratchet wrench according to different working environments or spaces; Yes, since the ratchet set (7) is identical to the ratchet anvil (5), the ratchet housing (4) is oscillated and interlocked with the crankshaft (8) between the ratchet set (7) and the drive mechanism (2). Therefore, with the universal joint structure formed by the crankshaft (8) of the present invention, the output shaft (83) of the crankshaft (8) can smoothly swing with the ratchet group (7), and the input shaft of the crankshaft (8) (81) Forming any bending angle and making the input shaft (81) and the output shaft (83) at any bending angle can also generate power transmission without affecting the drive 8 200821098 - moving mechanism (2 And the linkage between the ratchet set (7); accordingly, when the ratcheting anvil (5) of the ratchet wrench is pivoted to adjust the arbitrary operating angle with the ratchet housing (4), the power transmission can be smoothly achieved, Coping with all kinds of turning work, at the same time, because the crankshaft (8) structure is relatively simple, the number of components is small, and the operation is stable and smooth. Therefore, the manufacturing and assembly costs can be effectively reduced, and the rate of the sheep and the service life can be reduced. In summary, the present invention has excellent advancement and practicability in similar products, and at the same time, the technical materials of such structures are frequently investigated at home and abroad, and the same structure is not found in the literature. The invention already has the invention patent requirements, and the application is filed according to law. However, the above description is only one of the preferred embodiments of the present invention, and it is intended that the equivalent structural changes in the scope of the present invention and the scope of the patent application are included in the scope of the present invention. [Simple diagram of the diagram] Set the three-dimensional diagram of the crankshaft.
圖五為本發明曲軸之分解示意圖。 圖一為本發明具角度調整之板手之立體示意圖。 圖二為本發明具角度調整之板手設置曲軸之立體 圖二為本發明具角度調整之板手之立體分解示意 圖六為曲軸設置於板手之剖面示意圖。 圖七係本發明具角度調整之板手之剖面示意圖 9 200821098 圖八係本發明具角度調整之板手之動作示意圖。 【主要元件符號說明】 1握柄 2驅動機構 21卡掣槽 3棘輪殼座 4棘輪殼體 5棘輪石占 6轉紐 7棘輪組 71棘齒 7 2弧形凹槽 73驅動軸襯 8曲轴 81入力軸 811卡掣柱 812凸耳 813銷孔 8 2軸襯 821銷孔 83出力軸 200821098 8 31偏心凸緣 832凸耳 833銷孔 8 4軸銷 8 5軸承Figure 5 is a schematic exploded view of the crankshaft of the present invention. FIG. 1 is a schematic perspective view of a wrench with an angle adjustment according to the present invention. Fig. 2 is a perspective view showing the crankshaft of the wrench with angle adjustment according to the present invention. Fig. 2 is a perspective exploded view of the wrench with angle adjustment according to the present invention. Fig. 6 is a schematic cross-sectional view showing the crankshaft disposed on the wrench. Figure 7 is a schematic cross-sectional view of a wrench with an angle adjustment according to the present invention. 9 200821098 Figure 8 is a schematic view of the action of the wrench with angle adjustment according to the present invention. [Main component symbol description] 1 grip 2 drive mechanism 21 card slot 3 ratchet housing 4 ratchet housing 5 ratchet stone 6 turns 7 ratchet set 71 ratchet 7 2 arc groove 73 drive bushing 8 crankshaft 81 Input shaft 811 掣 812 lug 813 pin hole 8 2 bushing 821 pin hole 83 output shaft 200821098 8 31 eccentric flange 832 lug 833 pin hole 8 4 shaft pin 8 5 bearing