M342913 八、新型說明： 【新型所屬之技術領域】 本創作係與一種棘輪起子 【先前技術】 好之改良結構有關。 凊參閱第-至二圖所示，係分別為一種習知之棘 ，之分_及顯示該換向環件軸 $ =之組合剖視圖，該棘輪起子彳_ 頭30以二2 ，該棘輪單元20係供配合一起子 頭30以知作螺絲，該棘輪單元2〇並 *于 之定位座21，該定位座21且右έ 八 二、軸a 相SIM，具有一組接端2丨1係與該握柄10 右定位端212，該定位端212上並套設 糊相㈣峰，且該定位 向之容八有—互相平仃且平行於徑 门之谷置槽213，以供分別容設有呈u形之卡 卡掣片22朝該定位座21外邛編 # 2及么、δ亥 性元择Μ魏^祕元件23，該等彈 兮：為 壓縮彈簧，-換向環件24縣机於 ^輪件40與該握柄10間之定位端212 ， 件24内環周面相對該等卡掣片 Α換咏 -難莖本制口。 轴向開口端分別凹設有 24〗二&之掣動端221以供掣動換向之卡掣槽 等卡掣槽241之側端各設有一導引之斜面242 t 之赫定位座21間係設有一供該等卡擎片四ΐ 组25，該定位組25係於該換向環件24相 24Γ，並於t — f端内環面設有三個沿環向併設之定位槽 "“X疋位端212相對其中一個定位槽243設有一沉 5 M342913 孔251，該沉孔251内並安裝有一 咖換向環件一二：: 制=壓彈性•限位於卡 一卡擎片22之掣動端221藉由彈性元件另 之齒部41，周面而嚅合該棘輪件40 達到躺定位， 从〜、鴨方向目的，使該棘輪件40作單向德人，L、". 作啊之起子頭3〇單向轉動螺絲。 ㈣口以# 嗜人但掣片22與該棘輪件4Q之齒部41是呈單側 s且0亥彈性元件23為中处捲结夕厭h "：：：：Π；ί^ ------ 操作該換向環件24時 =;二片力:足:二欲換向聯動且 產生直線移動。 4卡I片22疋相對於定位座21 合剖視圖二知之棘輪起子構造之組 該定位座21之述1知同，不同之處在於 第-容靜2U 軸線b _凹設有二呈反向設置的 設置的第容渉;f料第—容麵214對應且亦呈反向 2ll 及弟一今置槽215而呈對應設置之穿槽 6 M342913 216 ’該穿槽216係平行徑向中心軸線b ,該等第一容置槽 214及—該等等第二容置槽215分別容設有一第一卡擎片⑽ 及第一卡掣片215a’而該等穿槽2ΐβ分別設有一彈性元件 217，故於切換棘輪起子操作方向時，則可使該等第一卡擎 片214a及該等第二卡掣片片215a藉由該等彈性元件217保 持與該棘輪件40之齒部41呈雙側嚅合趨勢。 口亥白知之棘輪起子構造雖可藉由該等 2143及該等第二卡料215_與該棘= ui 441 1雙侧嚷合，但該等彈性元件217為平行該徑 ，軸線b而兩端分別壓抵第一卡掣片⑽及第二卡掣 2 5a間相對之端面，且該等彈性元件217為中空捲繞之 =著=，第—卡挈片2i4a及第二卡:片：二 ί使用供早側之推抵力，且壓縮彈簧容易因長時 f 咖會造成第—卡擎片214a及第二 ^片，與該棘輪件4〇之齒部41咬合力不佳，整體所 承文扭力小，且整體構造組裝複雜。 【新型内容】 f創餘要目的在使鄉性元件能有效接觸壓抵卡擎 ’提供該等卡掣片保持彈性嚷合棘輪件之齒部，進 空心軸供該棘輪件帶動起子頭沿該定位座之中 Ϊ件彈#心7 X之扭力大’而不會縣_朗造成彈性 便組裝。：’使整斷能承受扭力大，且整體構造簡單方 該棘輪起子 故本創作係提供-麵細仅改良結構， 7 M342913 係供配合-起柄上之—棘輪單元，該棘輪單元 *、、以 $子頭轉獅，該棘輪單元更包含具有-中 接，另立κ定位座具有一組接端係與該握柄相固 鄰且平行該 η二位座間係设有一供該等卡掣片掣動換向定位之定 巾，於該定健之定位端頂端面 :=端徑向環繞該定位座之中空心轴周圍預定： 署二…，，使刻形槽位於該等容置槽間，且該等容 _槽軸向高度凹設有—υ形之開放槽，使 5亥等合置槽相對端側與該υ形槽之軸向開口端相連通，一由 弹性片構成之彈性元件係容設於該U形槽内，其二端 朝該11職_之容延伸，且不超職換向環件 之=面並分別彈性抵靠容置於該等容置槽之卡擎片相對 t上雜徵使本創作轉動雜向環料崎應之 片，藉由該彈性元件能有效接麵抵卡掣片之側向端面 供該等卡掣聽持雜於棘輪件之齒部，使 起子時，該卡_1藉由壓抵該彈性元件—端之自由乍端= 侧向彈性她力’以使該卡掣片之掣動端與棘輪件之齒部保 M342913 ====== 帶動起子頭沿該 因長時間使用造成彈性疲乏，使該等 ;咬合力極佳’整體所承受扭力大，且整體構 【實施方式】 請參閱第四至五圖所* ’係相為 係^述自知相同’其標號及圖式顯略的部分 H一圖，本創作之棘輪起子係包括装設於該握柄10上 之棘輪早心’ _輪單㈣係做合购侧3G 螺絲，該棘輪單元2G之幻域21具有 · trr，椒咖212塊_姆^、= f棘輪件40内周面具有齒部4卜且該定位端212相鄰复中 二心軸a兩端上具有二互相平行且平行於徑向置 滿、施，以供分別容設一卡掣片施、娜，且該等= ί r=2b】r設有—彈性元件27 ’該換向環件24相對該 槽218a、218b轴向之開口端分別凹設有供該等卡 f 26a、26b掣動換向之卡掣槽24卜且該換向環件％與診 f位座21間係設有供該等卡掣片施、舰掣動換向定 定位組25，其主要改良重點在於·· 該定位座21，於其定位端212前端面凹設有一υ形样2a， 該师槽28係相對該等容置槽施、2勘之軸向開口曰端另 9 M342913M342913 VIII. New description: [New technical field] This creation is related to a ratchet screwdriver [Prior Art] Good improved structure. Referring to Figures 1-2, there are respectively a known spine, a _ and a combined cross-sectional view showing the reversing ring axis $=, the ratchet screwdriver _ head 30 being two 2, the ratchet unit 20 It is used to cooperate with the sub-head 30 to be known as a screw, and the ratchet unit 2 is positioned and positioned on the seat 21, the positioning seat 21 and the right-hand side 8.2, the shaft a-phase SIM, having a set of terminals 2丨1 and The handle 10 has a right positioning end 212, and the positioning end 212 is sleeved with a paste phase (four) peak, and the positioning is provided with a flat groove parallel to the valley of the diameter door for 213 respectively. There is a U-shaped kaka 掣 22 facing the positioning seat 21 邛 # 2 2 么 δ δ δ δ δ δ δ δ δ δ δ δ δ δ , , , , , , , , , , , , , , , , , , , , , , , The county machine is located at the positioning end 212 between the wheel member 40 and the grip 10, and the inner circumferential surface of the member 24 is changed with respect to the card-shaped sheets. The axially open ends are respectively recessed and provided with a biasing end 221 of the second and the second for the purpose of the swaying of the card slot and the like, and the side ends of the latching grooves 241 are respectively provided with a guiding inclined surface 242 t between the positioning seats 21 There is a set of 25 for the card slabs, the locating group 25 is attached to the reversing ring member 24, and has three positioning grooves along the inner ring surface of the t-f end. The X-clamping end 212 is provided with a sinking 5 M342913 hole 251 with respect to one of the positioning slots 243. The counterbore 251 is provided with a coffee reversing ring member one or two::============================================= The rocking end 221 is coupled to the ratchet member 40 by the elastic member and the tooth portion 41, and the ratchet member 40 is positioned to lie. From the direction of the duck, the ratchet member 40 is made to be a one-way German, L, " The screwdriver head 3 turns the screw in one direction. (4) The mouth is #人人, but the blade 22 and the tooth portion 41 of the ratchet member 4Q are one-side s and the 0-elastic element 23 is in the middle h "::::Π; ί^ ------ When operating the reversing ring 24 =; two pieces of force: foot: two want to reverse the linkage and produce a linear movement. 4 card I piece 22 疋 relative At the positioning seat 21 The view of the two-handed ratchet screwdriver structure is the same as that of the positioning seat 21, except that the first-to-resonant 2U axis b_- concave is provided with two sets of the reversed arrangement of the first set; The surface 214 corresponds to and is also in the opposite direction 211 and the first slot 215 is provided to be correspondingly disposed through the slot 6 M342913 216 'the through slot 216 is parallel to the radial center axis b, the first receiving slot 214 and the The second receiving groove 215 is respectively provided with a first card chip (10) and a first card piece 215a', and the through grooves 2ΐβ are respectively provided with an elastic member 217, so when the direction of the ratchet driver is switched, The first card slab 214a and the second slap 215a are held by the elastic members 217 to be bilaterally twisted with the teeth 41 of the ratchet member 40. The mouth of the ratchet Although the 2143 and the second card 215_ are coupled to the side of the spine ui 441 1 , the elastic members 217 are parallel to the diameter, and the axis b is pressed against the first card at both ends. The opposite end faces between the cymbal (10) and the second cymbal 25a, and the elastic members 217 are hollowly wound ===, the first cymbal 2i4a The second card: the film: two ί uses the pushing force for the early side, and the compression spring is easy to cause the first card 214a and the second piece due to the long-term f, and the tooth portion 41 of the ratchet member 4 The bite force is not good, the overall bearing torque is small, and the overall structure is complicated to assemble. [New content] f. The purpose of the re-creation is to enable the domestic components to be effectively contacted with the pressure of the card engine to provide these card pieces to maintain elastic coupling. The tooth portion of the ratchet member, the hollow shaft is provided for the ratchet member to drive the screwdriver head along the positioning seat, and the torque of the heart 7 X is large, and the county is not elastic. : 'Enable the torsion force can withstand large torque, and the overall structure is simple. The ratchet screwdriver is provided by the creative department - the surface is only improved, the 7 M342913 is for the matching - the ratchet unit on the handle, the ratchet unit *, Turning the lion with a sub-head, the ratchet unit further includes a - middle joint, and the other κ positioning seat has a set of end systems that are solidly adjacent to the grip and parallel with the n-position. The slanting reversing positioning of the slats is at the top end of the positioning end of the fixed end: the = end radially surrounds the hollow shaft around the locating seat to be predetermined: a second..., the engraved groove is located between the accommodating slots And the axial width of the equal volume _ groove is concavely provided with a υ-shaped open groove, so that the opposite end side of the lap or the like is in communication with the axially open end of the υ-shaped groove, and the elasticity is formed by the elastic piece The component is disposed in the U-shaped groove, and the two ends thereof extend toward the position of the 11th position, and the surface of the ring member is not over-reversed and elastically abuts against the card rusher accommodated in the accommodating groove The sheet is opposite to the t mark on the t, so that the creation turns the sheet of the hybrid ring material, and the elastic element can effectively connect the surface to the card. The card is provided to the end face to be miscible with the tooth portion of the ratchet member, so that when the driver is activated, the card_1 is pressed against the free end of the elastic member - the lateral elastic force is used to make the card The moving end of the piece and the tooth part of the ratchet piece are protected by M342913 ====== The elastic head is caused by the long-term use of the screwdriver head, which makes the bite force excellent. The overall torque is large and the overall structure is [Embodiment] Please refer to the section of Figure 4 to Figure 5, which is the same as the label and the schematic part of the figure H. The ratcheting screwdriver of the present invention is installed on the handle. 10 on the ratchet early heart ' _ wheel single (four) is the purchase side 3G screw, the ratchet unit 2G illusion 21 has · trr, pepper coffee 212 block _ m ^, = f ratchet member 40 inner peripheral surface has teeth 4, and the positioning end 212 adjacent to the two ends of the two mandrel a have two parallel and parallel to the radial full, apply for respectively to accommodate a card, Shi, Na, and the = ί r=2b]r is provided with an elastic member 27'. The reversing ring member 24 is recessed with respect to the axially open ends of the slots 218a, 218b, respectively, for the cards f 26a, 26b to be tilted The card slot 24 is provided, and the reversing ring member % and the diagnostic f seat 21 are provided with the card clamping device and the ship yaw reversing positioning group 25, and the main improvement focus is on the positioning. The seat 21 is concavely provided with a shape 2a at the front end surface of the positioning end 212, and the division groove 28 is opposite to the accommodating groove, and the axial opening of the second opening is 9 M342913
端，並徑向環繞該定位座21之中空心軸a周圍適當間距，使 該U形槽28位於該等容置槽218a、218b間，且該等容置槽 218a、218b並亦形成U形狀，該等容置槽218a、218b間並相 對該U形槽28轴向深度凹設有一u形之開放槽29，使該等容置 槽218a、218b相對端侧與該u形槽28之軸向開口端相連通， 且該定位座21之定位端212後端部相對該等容置槽218a、 218b間係為一定位部219，該定位部219兩侧端則形成收束之 P艮位頸部219a、219b，使其中之一^^掣片26a、26b掣動換向 定位於對應之限位頸部216a、216與容置槽218a、218b間内。 該彈性元件27，係為一具有彈性回復力之彈性片所構 成，係容置於前述之定位座21之[j形槽28内，使該彈性元 件27中心係徑向環繞該定位座21之中空心軸&周圍，其二 端之自由端27a、27b並分別朝該υ形槽28兩側之容置槽 218a、218b延伸，且不超過該換向環件24之内卡掣槽241， 並分別沿該等容置槽213之卡掣片26a、26b相對之内側端 面彈性抵靠，提供該等卡掣片施、舰内侧之徑向推力及 軸向之中心支撐彈力。 為供進一步瞭解本創倾造特徵、運職術手段及所預 成之功效，效將本創作使用方式加以欽述，相信當可由 此而對本創作有統人且频之瞭解，如下所述： 夕j閱第’:圖A所示’係為沿本創作第五圖中之線A-A 離=操作該換向環件於—帽位置時之定位狀 向環件24於—中檔位置，即該定位組奶之 M342913 ^珠253即受彈簧252之彈力作用朝該換向環件24之位在 中間之疋位槽243嵌設，則該等卡掣片施、她 動至:該換向環件24内環周面相對該等卡掣片咖、娜二擎 動端261a、261b之卡掣槽241，再配合參閱第 係為沿本創作第五圖中之線Μ之剖面圖以顯; =於-中權位置時之定位狀態，該等卡掣片施、舰間And a radial spacing around the hollow shaft a of the positioning seat 21, such that the U-shaped groove 28 is located between the receiving grooves 218a, 218b, and the receiving grooves 218a, 218b also form a U shape A U-shaped open groove 29 is recessed between the accommodating grooves 218a and 218b and axially opposite to the U-shaped groove 28, so that the opposite end sides of the accommodating grooves 218a and 218b and the axis of the U-shaped groove 28 The rear end of the positioning end 212 of the positioning seat 21 is connected to the positioning groove 218a, 218b as a positioning portion 219, and the two sides of the positioning portion 219 form a converging P-position. The neck portions 219a, 219b are configured such that one of the cymbals 26a, 26b is slidably positioned between the corresponding limiting neck portions 216a, 216 and the accommodating grooves 218a, 218b. The elastic member 27 is formed by an elastic piece having an elastic restoring force, and is disposed in the [j-shaped groove 28 of the positioning seat 21, so that the center of the elastic member 27 radially surrounds the positioning seat 21. The free ends 27a, 27b of the two ends of the hollow shaft & are respectively extended toward the receiving grooves 218a, 218b on both sides of the beak groove 28, and do not exceed the inner groove 241 of the reversing ring member 24. And elastically abutting against the inner end faces of the latching tabs 26a, 26b of the receiving slots 213, respectively, to provide the radial thrust of the inner side of the latching plate, the inner side of the ship, and the central supporting elastic force of the axial direction. In order to further understand the characteristics of this creation, the means of transportation and the effect of the pre-made, the effect of this creation is explained. It is believed that this creation has a common understanding of the creation, as follows:夕j看第': Figure A shows the line along the line AA in the fifth figure of the creation. The position of the reversing ring in the position of the cap is at the mid-range position. The M342913^bead 253 of the positioning group milk is embedded by the elastic force of the spring 252 toward the position of the reversing ring member 24 in the middle of the clamping groove 243, and the card is applied to: the reversing direction The circumferential surface of the inner ring of the ring member 24 is opposite to the card slot 241 of the card holders, the second end of the movable end 261a, 261b, and the cross-sectional view of the line in the fifth figure of the present creation is further referred to. ; = Positioning state in the position of - in the right position, these cards, the ship, the ship
件27之彈力壓抵作用，使該等卡掣片26a、26b 之I動& 261a、261b皆嚷合在該棘輪件4〇之齒部4i上， 當轉動該握柄10時，即可雙向連動起子頭3G轉動，達到雔 向操作螺絲目的。 又 參閱第七® A所示，係為沿摘作第五圖巾之線A—A之 剖面圖以顯示操作該換向環件於_側，該等卡掣片掣動換向 後之定位絲，當欲切絲作方向時，可將賴向環件Μ ，順時針方向轉動，此時，該粒組25之鋼珠挪即受彈 簧252之彈力作用朝該換向環件24之位在最左側之定位槽 • 243嵌設，再配合參閱第七圖B所示，係為本創作之第五^ B-B線剖面圖顯示轉動該換向環件於一側使該等卡掣片掣動 * 換向而與棘輪件嚅合之定位狀態，此時，位於左端之卡掣片 26b之掣動端261b朝卡掣槽241凸伸並擋止於卡掣槽241之 斜面242,另端之卡掣片26a之掣動端261a藉由對應之卡掣 ，241斜面242導引擋止於相鄰之換向環件24内環面，並 藉由彈性το件26二端自由端27a、27b提供限位於該限位頸 部216a、216與容置槽218a、218b間内，使於操作該棘輪 起子時，該卡掣片26b則藉由壓抵該彈性元件27 —端之自 11 M342913 由=27b提供彻!向彈性推抵力，以使該卡 ==之齒部41細合，並進而由該二 27 ki、雜輪件4〇 φ動起子頭3〇沿該定位m 二The spring force of the piece 27 is pressed, so that the I move & 261a, 261b of the latching pieces 26a, 26b are coupled to the tooth portion 4i of the ratchet member 4, when the handle 10 is rotated, The two-way interlocking screwdriver head 3G rotates to achieve the purpose of the steering screw. Referring also to the seventh page A, a cross-sectional view taken along the line A-A of the fifth drawing towel is shown to operate the reversing ring member on the _ side, and the card flakes are moved to the repositioned positioning wire, When the wire is to be cut, the ring member can be rotated in a clockwise direction. At this time, the steel ball of the group 25 is moved by the elastic force of the spring 252 toward the leftmost position of the reversing ring member 24. The groove 243 is embedded, and the reference to the seventh figure B is the fifth section of the BB line. The cross-sectional view of the BB line is shown rotating the reversing ring on one side to make the card smashing * reversing The positioning state of the ratchet member is matched with the ratchet member 26b. At this time, the tilting end 261b of the latching piece 26b at the left end protrudes toward the latching slot 241 and blocks the beveled surface 242 of the latching slot 241, and the other end of the latching tab 26a The slanting end 261a is guided by the corresponding yoke 241, and the slanting surface 242 is guided to block the inner annular surface of the adjacent reversing ring member 24, and is provided by the elastic end portions 27a, 27b of the elastic τ 262 member. Between the limiting necks 216a, 216 and the accommodating grooves 218a, 218b, when the ratchet driver is operated, the latching piece 26b is pressed against the end of the elastic member 27 From 11 M342913, it is provided by =27b to push the elastic force so that the tooth portion 41 of the card == is finely combined, and further, the two 27 ki, the miscellaneous wheel member 4 〇 φ move the sub-head 3 Positioning m two
二A ’ 4目 g 該換 G 在另一方向轉動，使該等卡掣片26 2 其動作原理係同於_，故不再贅述。向’ 兹’再將本創作之概其可達成之職魏陳述如下： 本創作主要藉由轉性元件能有效接觸壓抵卡 二Hi提供該等卡掣片保持彈性嗜合棘輪件之齒部，使 ^作_輪起子時’該卡掣片則藉由壓抵該彈性元件 性推抵力，以使該卡掣片之掣動端與棘 動起子^二，合，趣而由該雜元件提供該棘輪件帶 起子頭w亥疋位座之中空心軸轉動所承受之扭力大，且嗦 ϊ trr長_朗造成雜疲乏，等卡掣片^ _輪件技部咬合力極佳，整構 造簡單方便喊。 π 構 綜上所述，本創作在同類產品中實有其極佳之進步實用 =’同時遍查_外關於此類結構之技 相_構_在在先，是以，本_實已 利要件，爰依法提出申請。 哥 ρ Γ與以ί所述者’僅係本創作之-較佳可行實施例而 =書及切專利範_為之等效結 構受化，理應包含在摘作之專鄕圍内。 12 M342913 I 、 【圖式簡單說明】 第一圖係為一種習知之棘輪起子構造之分解圖。 第二圖係為習知第一圖之組合剖視圖以顯示該換向環件掣 動該等卡掣片換向後之定位狀態。 第三圖係為另一種習知之棘輪起子構造之組合剖視圖。 第四圖係為本創作之分解圖。 第五圖係為本創作之組合剖視圖。 • 第六圖A係為沿本創作第五圖中之線A-A之剖面圖以顯示操 作該換向環件於一中槽位置時之定位狀態。 第六圖B係為沿本創作第五圖中之線B—B之剖面圖以顯示操 作該換向環件於一中檔位置時之定位狀態。 定位狀態。 【主要元件符號說明】 〔習知〕 10 握柄 20 棘輪單元 21 定位座 211 組接端 212 定位端 213 容置槽 第七圖A係為沿本創作第五圖中之線A—A之剖面圖以顯示操 作該換向環件於一側，該等卡掣片掣動換向後之定位狀態。 第七圖B所係為本創作之第五圖B-B線剖面圖以顯示轉動該 換向環件於一侧，使該等卡掣片掣動換向而與棘輪件噶合之 13 M342913Two A' 4 mesh g The G is rotated in the other direction, so that the operation principle of the card segments 26 2 is the same as that of _, and therefore will not be described again. To the 'Ze', the responsibilities of this creation can be fulfilled as follows: This creation is mainly provided by the transducing elements that can effectively contact the card. The two pieces of the card are provided to maintain the elastic part of the ratchet member. When the brake is made, the card is pressed against the elastic element, so that the swaying end of the card and the ratchet are combined, and the miscellaneous The component provides the ratchet member with a screwdriver head, and the hollow shaft of the seat is large, and the torque of the hollow shaft is large, and the 嗦ϊtrr long_lang is caused by fatigue, and the clamping force of the card piece ^ _ wheel part is excellent. The whole structure is simple and convenient to shout. According to the π structure, this creation has its excellent progress in the same kind of products. Practicality='At the same time, it is used to check the structure of the structure. _In the first, yes, this _ is already profitable Essentials, 提出 apply in accordance with the law. The equivalent structure of the 所述 Γ Γ and 所述 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 12 M342913 I , [Simple description of the diagram] The first diagram is an exploded view of a conventional ratchet screwdriver construction. The second figure is a combined cross-sectional view of the first figure to show the position of the reversing ring member after the reversing of the card pieces. The third figure is a combined cross-sectional view of another conventional ratchet screwdriver construction. The fourth picture is an exploded view of the creation. The fifth picture is a sectional view of the combination of the creation. • Figure 6 is a cross-sectional view along line A-A in the fifth diagram of this creation to show the positioning of the reversing ring in a mid-slot position. Figure 6B is a cross-sectional view taken along line B-B of the fifth drawing of the present invention to show the positioning state when the reversing ring member is operated at a mid-range position. Positioning status. [Main component symbol description] [General] 10 Gripper 20 Ratchet unit 21 Positioning seat 211 Assembly end 212 Positioning end 213 accommodating groove Figure 7A is a section along the line A-A in the fifth figure of this creation. The figure shows that the reversing ring member is operated on one side, and the card flakes are moved to the reversed positioning state. Figure 7B is a cross-sectional view taken along line B-B of the fifth drawing of the present invention to show that the reversing ring member is rotated on one side, so that the card pieces are twisted and reversible to match the ratchet member. 13 M342913
214 第一容置槽 214a 第一卡掣片 215 第一容置槽 215a 第二卡掣片 216 穿槽 217 彈性元件 22 卡掣片 221 掣動端 23 彈性元件 24 換向環件 241 卡掣槽 242 斜面 242 定位槽 243 定位槽 25 定位組 251 沉孔 252 彈簧 253 鋼珠 30 起子頭 40 棘輪件 41 齒部 a 中空心軸 b 中心軸線 〔本新型〕 218a 容置槽 218b 容置槽 219 定位部 219a 限位頸部 219b 限位頸部 26a 卡掣片 26b 卡掣片 27 彈性元件 27a 自由端 27b 自由端 28 U形槽 29 開放槽 14214 first accommodating groove 214a first gusset 215 first accommodating groove 215a second gusset 216 through groove 217 elastic member 22 gusset 221 cocking end 23 elastic member 24 reversing ring member 241 card slot 242 bevel 242 positioning groove 243 positioning groove 25 positioning group 251 counterbore 252 spring 253 steel ball 30 screwdriver head 40 ratchet member 41 tooth portion a hollow shaft b center axis [new] 218a accommodating groove 218b accommodating groove 219 positioning portion 219a Limit neck 219b Limit neck 26a Clip 26b Clip 27 Elastic element 27a Free end 27b Free end 28 U-shaped groove 29 Open groove 14