1332885 九、發明說明： 【發明所屬之技術領域】 本發明係與手工具有關，尤指一種棘輪扳手結構。 【先前技術】 如第7圖所示，為習用之棘輪扳手結構，其具有一位 於握柄9 0頂端之頭部9 1，且該頭部9 1係具有一容置 空間9 2而可供一棘輪9 3容置，並於該容置空間9 2之 壁面上係設有一穿孔9 4，而於該穿孔9 4中則依序裝設 有一掣動塊95、一彈簧96以及一鎖固座97，並藉該 彈簣9 6係用以頂撐該掣動塊9 5，而使該掣動塊9 5係 得與該棘輪9 3之外周相互嚙合，並藉以提供該棘輪9 3 一單向卡掣之功能。 由圖中可見，此種習用之棘輪扳手於製造時，係直接 於該容置空間9 2之壁面上貫設有該穿孔9 4，然而，如 此一來，勢必會破壞該頭部9 1之結構強度，而導致該棘 輪扳手於受較大之施力時，會有從該頭部9 1折斷而損壞 Φ 之情形發生。 再者，上述棘輪扳手之棘輪9 3由於受到該擎動塊9 5所提供之單向卡掣作用，而使該棘輪9 3僅具有一固定 之可旋轉方向，因此並無法依照工作需求，而隨意變換棘 輪9 3之可運轉方向，故，上述習用之棘輪扳手仍有未達 完善，而尚有需要改進之處。 【發明内容】 5 1332885 本發明目的之一，在於提供一種棘輪扳手，其具有鈷 構簡單’並兼具有良佳之結構強度，而可降低製造成本旅 且延長棘輪扳手之使用壽命者。 本發明目的之二，在於提供一種棘輪扳手，其具有可 依照工作需求之不同，而隨意變換棘輪之可運轉方向。 - 為達前述之目的’本發明係提供一種棘輪扳手，其包 含有： 一扳手本體，其具有一作用端以及一扳動端，該作用 • 端係呈環狀而具有一容置部，且於該容置部一端係具有一 環凹部，並於該容置部之侧壁係開設有二導引槽； 一棘輪，其外周圍係環設有一環齒，且於該棘輪中心 位置形成有一作動部’而該棘輪係容設於該扳手本體之容 置部中； 二掣動組件，係分別設於該各導引槽内，該各掣動組 件係分別由一掣動塊與一彈性件構成，且該掣動塊係設於 該導引槽之開口端，而該彈性件則設於該導引槽底緣以頂 該掣動塊’且於該擎動塊朝向該容置部之一端係形成有 -卡齒而與該棘輪之環齒相對應，並得單向卡掣於該棘輪 之環齒上； 一控制件，係以可轉動方式裝設於該環凹部中，並於 該控制件與該環凹部相互抵接之端面上係具有一頂推面， 且經由轉動該控制件而使該項推面得擇-頂壓於其中一卡 掣動塊上，並迫使該擎動塊内縮以解除對該棘輪 6 1332885 而本發明之上収其他目的與優點，不難從下述所選 用實施例之詳細說明與附圖中，獲得深入了解。 當然，本發明在某些另件上，或另件之安排上容許有 所不同，但所選用之實施例，則於本說明書中，予以詳細 說明，並於附圖中展示其構造。 【實施方式】 首先’請參閱第1圖，本實施例中所提供之一種棘輪 修扳手，其主要係由一扳手本體1 1、-棘輪21、二掣動 組件3 1、一控制件41所構成，其中： 該扳手本體1 1，其具有一作用端1 2以及一可供施 力之扳動端1 3，該作用端1 2係呈環狀，而具有一容置 邛1 4，且於該容置部14底端係環設有一擋部1 5，而 於該擋部1 5相對端之容置部14内緣處則設有一環凹部 16，並於該谷置部14之内側壁上係開設有二與該容置 。卩1 4相連通之導引槽1 7，且於該扳手本體之作用端端 • 面上係凹設有一缺槽1 8，並於該缺槽1 8中係開設有一 控制孔1 8 1，一彈性件1 9 1以及一壓鈕1 9 2係依序 裝設於該控制孔18 1中，且於該缺槽1 8兩側係各形成 有一限位部18 2 ; 該棘輪21，其外周圍係環設有一外凸之環齒2 2， 且該棘輪2 1之中心位置係設有一作動部2 4，而於本實 施例中該作動部2 4係為一貫穿該棘輪之多角孔結構，且 該棘輪2 1係用以容設於該扳手本體1 1之容置部J 4 7 1332885 中’並使該棘輪2 1之一側係受該容置部14底端之擋部 1 5所擋止； 該二掣動組件3 1，係分別設於該各導引槽17内， 且該各掣動組件3 1係分別由一掣動塊3 2與一彈性件3 3構成，該掣動塊3 2係設於該導引槽1 7之開口端，而 該彈性件3 3則設於該導引槽1 7底緣以頂撐該掣動塊3 ' 2 ’且該掣動塊3 2之外形係恰與該導引槽17相符，以 使該掣動塊3 2係得沿該導引槽17而進行一滑動位移， • 且當該掣動塊3 2於進行滑動時，係受該導引槽1 7之内 徑限制，而可有效導正該掣動塊3 2於滑行時之行程，並 於該掣動塊3 2朝向該容置部1 4之一端係形成有一卡齒 3 4，而該卡齒3 4係與該棘輪2 1上之環齒2 2相互對 應，以使該掣動塊3 2係得藉由該彈性件3 3之頂撐，而 以其卡齒3 4單向卡掣於該棘輪2 i之環齒2 2上，並於 該卡齒3 4上係具有一受壓面3 6 ; 該控制件41，係以可轉動方式裝設於該作用端12 籲之％凹部1 6中’且於該控制件4丄之周面上係環設有一 凹槽4 2，一扣環4 4係嵌設於該凹槽4 2中，而該控制 件4 1係以其一端而與該容置部1 4内之環凹部i 6相抵 接，再以其周面上之扣環44而與該環凹部i 6上緣之一 定位槽4 6相卡合，以使該棘輪2 1之-侧係受該擋部丄 5所擋止，另一侧則與該控制件4 1相抵接，並於該控制 件4 1與該環凹部工6相互抵接之端面上係具有一頂推面 47，且經由轉動該控制件4 1可使該頂推面4 7得擇一 8 頂壓於其中一卡掣組件31之掣動塊32受壓面3Θ上， 並迫使該掣動塊3 2内縮以解除對該棘輪2 1之卡掣作用 ，而於該控制件41朝該扳手本體1 1之扳動端丄3方向 係延伸有一開關部4 8，且該開關部4 8係經由該缺槽丄 8而往後延伸，並於該開關部4 8内侧設有複數定位槽4 9，而該各定位槽4 9係得分別與該控制孔1 8 1中之壓 鈕1 9 2相互對應卡合； 經由上述構件所組成之本發明於使用時，如第2圖所 示，當操作者以該棘輪2 1呈多角孔狀之作動部2 4嵌合 於一螺帽（圖中未示）上時，係先撥動該控制件4丄上之 開關部4 8，以使該開關部4 8—側邊係受該缺槽丄8其 中一侧之限位部1 8 2卡抵，此時該開關部内侧其中一定 位槽4 9並與該控制孔1 8 1中之壓鈕1 9 2相互卡合， 藉此即可定位該控制件41於旋擺後之位置，而如第3圖 所示，當轉動該控制件4 1之頂推面47頂壓於其中一卡 挈組件3 1A之掣動塊3 2A受壓面3 6A上，而迫使該 拏動塊3 2 A沿該導引槽1 7 a内縮，此時，另一侧之擎 動塊32B之卡齒34B係受該彈性件33B頂樓，而與 該棘輪2 1之環齒2 2相互嚅合以可提供一單向卡掣之功 效’藉此當操作者朝一方向旋擺該棘輪扳手時，即可同步 驅動嵌合於該棘輪2 1呈多角孔狀之作動部2 4中之螺帽 以進行鎖緊或放鬆之作業，並由於該另一侧之擎動塊3 2 B係恰好容置於該導引槽i 7 B中，因此當該棘輪2工受 該另一側之掣動塊3 2 B卡掣而隨該扳手本體1 1旋擺時 1332885 ’該掣動塊32B係可藉由與該導引槽17B内壁之擋抵 ，而有效提高該掣動塊3 2 B之徑向支撐力，並進而延長 棘輪扳手之使用壽命。 而當該扳手本體1 1朝另一側方向旋擺時，該掣動塊 3 2 B係會受到該扳手本體1 1於旋擺時所產生之反向應 力影響’以使該棘輪2 1上之環齒2 2頂壓該掣動塊3 2 B，並迫使該彈性件3 3 B壓縮而使該掣動塊3 2 B係沿 該導引槽1 7 B内部收縮，並解除該掣動塊3 2 B之卡齒 _ 3 4B與該棘輪2 1環齒2 2間之卡掣狀態，如此一來， 該扳手本體11即可在不帶動該棘輪21同步運轉之前提 下’而自行朝另一侧方向旋擺，且由於該掣動塊3 2 B於 觉該環齒2 2壓迫係沿該導引槽1 7 B之内部收縮時，因 此該導引槽1 7 B係具有提供該掣動塊3 2 B於移動時之 導正路徑功效，而使該掣動塊3 2 B於受力移動時不會有 偏擺之情形發生。。 而當操作者欲改變該棘輪2 1之可運轉方向時，如第 • 4圖所示，僅需將該控制件4 1之開關部4 8朝另一方向 撥動，而使該控制件4 1之頂推面4 7改為頂壓於另一卡 掣組件3 1B之掣動塊3 2B受壓面3 6 B上，如此一來 ，操作者即可藉由調整該控制件41之頂推面4 7位置， 而選擇該掣動塊32A、32 B對該棘輪2 1之卡掣作用 ，並進而改變該棘輪2 1之可運轉方向，且藉由該控制件 4 1開關部4 8側邊係受該缺槽1 8其中一侧之限位部工 8 2卡抵，以及該控制件4 1開關部4 8上之定位槽4 9 與該壓鈕1 9 2相互卡合 轉動後之位置。 =請，，第5圖，當以該控制件“開關部4 θ位之讀槽4 9而與該壓la 1 9 2相互卡合時 ;由於該控制件41於此位置時，其頂推面47並不會與 壬何掣動塊3 2A、32B之受壓面36A、36B相1332885 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to hand tools, and more particularly to a ratchet wrench structure. [Prior Art] As shown in Fig. 7, a conventional ratchet wrench structure has a head portion 191 at the top end of the grip 90, and the head portion 9 1 has an accommodating space 9 2 for A ratchet 9 3 is received, and a through hole 94 is disposed on the wall surface of the accommodating space 92, and a swaying block 95, a spring 96 and a lock are sequentially disposed in the through hole 94. a seat 97, and the magazine 9 6 is used to support the swaying block 915, so that the swaying block 9.5 is engaged with the outer circumference of the ratchet 9 3, thereby providing the ratchet 9 3 One-way card function. As can be seen from the figure, the conventional ratchet wrench is constructed to directly penetrate the perforation 94 on the wall surface of the accommodating space 92. However, in this case, the head 9 1 is bound to be destroyed. The structural strength causes the ratchet wrench to break from the head 9 1 and damage Φ when subjected to a large force. Furthermore, the ratchet wheel 9 of the ratchet wrench is subjected to the one-way locking action provided by the engine block 95, so that the ratchet wheel 9 has only a fixed rotatable direction, and thus cannot be in accordance with the work requirements. The direction of the ratchet wheel 9 can be changed at will. Therefore, the above-mentioned conventional ratchet wrench is still not perfect, and there is still a need for improvement. SUMMARY OF THE INVENTION 5 1332885 One of the objects of the present invention is to provide a ratchet wrench which has a simple cobalt structure and a good structural strength, which can reduce the manufacturing cost and extend the service life of the ratchet wrench. Another object of the present invention is to provide a ratchet wrench having a traversable direction in which the ratchet can be freely changed in accordance with the needs of the work. For the purpose of the present invention, the present invention provides a ratchet wrench comprising: a wrench body having an active end and a trigger end, the action end having an annular shape and having a receiving portion, and One end of the accommodating portion has a ring recess, and two guiding grooves are formed on the side wall of the accommodating portion; a ratchet wheel is provided with a ring tooth on the outer peripheral ring, and an action is formed at the center of the ratchet And the ratcheting device is disposed in the accommodating portion of the wrench body; the two swaying components are respectively disposed in the guiding grooves, and the swaying components are respectively composed of a swaying block and an elastic member The swaying block is disposed at the open end of the guiding groove, and the elastic member is disposed at the bottom edge of the guiding groove to end the swaying block' and the sliding block faces the accommodating portion One end is formed with a latching tooth corresponding to the ring tooth of the ratchet wheel, and is unidirectionally clamped on the ring tooth of the ratchet wheel; a control member is rotatably mounted in the ring recess, and An end surface of the control member and the annular recess abutting each other has a pushing surface, and Moving the control member to select the push surface - press against the one of the clicker blocks, and forcing the mover block to retract to release the ratchet 6 1332885, and the other objects and advantages of the present invention are obtained. It is not difficult to obtain an in-depth understanding from the detailed description of the embodiments selected below and the accompanying drawings. Of course, the invention may be varied on certain components, or in the arrangement of the components, but the selected embodiments are described in detail in the specification and their construction is shown in the drawings. [Embodiment] First, please refer to FIG. 1 , a ratchet repairing wrench provided in the embodiment, which is mainly composed of a wrench body 1 1 , a ratchet 21 , a second tilting component 3 1 , and a control component 41 . The structure of the wrench body 1 1 has a working end 1 2 and a biasing end 13 for applying force. The working end 12 is annular and has a receiving 邛 14 . A ring portion 15 is formed on the bottom end of the accommodating portion 14 , and a ring recess portion 16 is disposed at the inner edge of the accommodating portion 14 at the opposite end of the dam portion 15 and is inside the valley portion 14 . The wall is fastened with two and the accommodation. a guiding groove 17 connected to the first and fourth ends of the body, and a notch 1 8 is formed on the working end of the wrench body, and a control hole 1 8.1 is defined in the notch 18. An elastic member 1 9 1 and a pressing button 1 9 2 are sequentially disposed in the control hole 18 1 , and a limiting portion 18 2 is formed on each side of the notch 1 8 ; the ratchet 21 The outer peripheral ring is provided with a convex ring gear 2 2 , and the center of the ratchet wheel 2 1 is provided with an actuating portion 24 . In the embodiment, the actuating portion 24 is a polygonal hole penetrating the ratchet wheel. The structure of the ratchet 2 1 is received in the receiving portion J 4 7 1332885 of the wrench body 1 1 and the one side of the ratchet 2 1 is received by the bottom end of the receiving portion 14 The two swaying assemblies 31 are respectively disposed in the guiding grooves 17, and the swaying assemblies 31 are respectively formed by a swaying block 3 2 and an elastic member 33. The swaying block 3 2 is disposed at the open end of the guiding slot 17 , and the elastic member 3 3 is disposed at the bottom edge of the guiding slot 17 to support the swaying block 3 ′ 2 ′ and the 掣The outer shape of the moving block 3 2 coincides with the guiding groove 17 to The swaying block 3 2 is caused to perform a sliding displacement along the guiding groove 17, and when the sliding block 32 is slid, it is limited by the inner diameter of the guiding groove 17 Effectively guiding the stroke of the swaying block 3 2 during the sliding, and forming a latching teeth 3 at one end of the sliding block 3 2 toward the accommodating portion 14 , and the latching teeth 4 and the ratchet The ring teeth 2 2 on the 2 1 correspond to each other, so that the swaying block 32 is fastened by the elastic member 33, and the ring of the ratchet 2 i is unidirectionally clamped by the latching teeth 3 4 . The tooth 2 2 has a pressure receiving surface 36 on the latching tooth 3 4 ; the control member 41 is rotatably mounted in the recessed portion 16 of the active end 12 and is A groove 4 2 is disposed on the circumferential surface of the control member 4 , a buckle 4 4 is embedded in the groove 42 , and the control member 4 1 is connected to the receiving portion 1 The annular recess i 6 of the inner ring 4 abuts, and is engaged with the positioning groove 46 of the upper edge of the annular recess i 6 by the buckle 44 on the circumferential surface thereof, so that the side of the ratchet 2 1 is subjected to The blocking portion 5 is blocked, and the other side is in contact with the control member 41, and The end surface of the control member 41 and the annular recess 6 abuts each other with a pushing surface 47, and by rotating the control member 41, the pushing surface 47 can be pressed against one of the cards. The turbulence block 32 of the cymbal assembly 31 is pressed against the pressing surface 3, and the swaying block 3 2 is forced to retract to release the latching action of the ratchet 2 1 , and the control member 41 is biased toward the wrench body 1 1 A switch portion 4 8 extends in the direction of the movable end 3, and the switch portion 48 extends rearward through the notch 8 and a plurality of positioning grooves 4 9 are disposed inside the switch portion 48. The positioning groove 49 is respectively engaged with the pressing button 192 in the control hole 181; when the invention consisting of the above components is used, as shown in FIG. 2, when the operator When the ratchet 2 1 is in the shape of a polygonal hole, the actuating portion 24 is fitted to a nut (not shown), and the switch portion 4 8 on the control member 4 is first dialed to make the switch portion 4 8 The side edge is latched by the limiting portion 1 8 2 of one of the missing slots 8 , and at this time, one of the positioning slots 4 9 of the switch portion and the button 1 9 2 of the control hole 1 8 1 Engage each other, Thereby, the position of the control member 41 after the swing can be positioned, and as shown in FIG. 3, when the pushing surface 47 of the control member 41 is pressed against the tilting block of one of the latch assemblies 3 1A 3 2A pressure receiving surface 3 6A, and forcing the moving block 3 2 A to retract along the guiding groove 17 7 , at this time, the latching teeth 34B of the other side moving block 32B are subjected to the elastic member 33B The top floor and the ring teeth 2 2 of the ratchet 2 1 are coupled to each other to provide a one-way click function. Thus, when the operator swings the ratchet wrench in one direction, the ratchet can be synchronously driven. 2 1 is a nut in the polygonal hole-shaped actuating portion 24 for locking or loosening operation, and since the other side of the moving block 3 2 B is just accommodated in the guiding groove i 7 B Therefore, when the ratchet 2 is clamped by the other side of the sway block 3 2 B and swings with the wrench body 1 1 , the sway block 32B can be connected to the inner wall of the guide groove 17B. The resistance is increased, and the radial supporting force of the swaying block 3 2 B is effectively increased, and the service life of the ratchet wrench is further extended. When the wrench body 1 1 is swung toward the other side, the swaying block 3 2 B is affected by the reverse stress generated when the wrench body 1 1 is swung to make the ratchet 2 1 The ring gear 2 2 presses the swaying block 3 2 B and forces the elastic member 3 3 B to compress to cause the swaying block 3 2 B to contract along the inside of the guiding groove 17 B and release the swaying The latching state between the latching teeth _ 3 4B of the block 3 2 B and the ring gear 2 2 of the ratchet 2 1 , so that the wrench body 11 can be lifted before the ratchet wheel 21 is operated synchronously The other side is swayed, and since the swaying block 3 2 B senses that the ring gear 2 is pressed along the inside of the guiding groove 17B, the guiding groove 17B has the The swaying block 3 2 B has a positive path effect when moving, and the turbulent block 3 2 B does not have a yaw when the force is moved. . When the operator wants to change the operable direction of the ratchet 2 1 , as shown in FIG. 4 , only the switch portion 4 8 of the control member 4 1 needs to be moved in the other direction, so that the control member 4 is The top pushing surface 4 7 is instead pressed against the pressing surface 3 6 B of the movable block 3 2B of the other cassette assembly 3 1B, so that the operator can adjust the top of the control member 41 Pushing the position of the surface 47, and selecting the swaying blocks 32A, 32B to act on the ratchet 2 1 and further changing the operable direction of the ratchet 2 1 , and by the control member 4 1 the switch portion 48 The side edge is abutted by the limiting portion of the missing slot 18, and the positioning slot 4 9 of the control member 4 1 and the pressing button 19 are engaged with each other. The location. = please, in Fig. 5, when the control member "the switching portion 4 θ position of the reading slot 4 9 and the pressing la 1 9 2 are engaged with each other; since the control member 41 is at this position, its pushing The face 47 does not correspond to the pressure receiving faces 36A, 36B of the crank blocks 3 2A, 32B.
=接觸，，因此該棘輪2 ；L上之環齒2 2即會同時受到兩侧 向之零動塊3 2A、32B卡掣，而使該棘輪2 i處於 絕對固定而無法朝任-侧方向轉動之固定狀態。 然以上所述之實施例係用以說明本發明，而並非用以 限制本發明’如第6圖所示，係為本發明之另—實施例， 其中於該棘輪2 1中心位置所設置之作動部2 4亦可為一 四角柱結構，藉此即可使本發明之棘輪扳手得用於鎖設具 有四角孔之工件上，並由此可知，舉凡能順利帶動工件以 進行鎖設或放鬆之作動部形狀，應皆為本發明之等效實施 例。= contact, so the ring gear 2 of the ratchet 2; L will be simultaneously clamped by the zero-moving blocks 3 2A, 32B on both sides, so that the ratchet 2 i is absolutely fixed and cannot be oriented in the direction of the side The fixed state of rotation. The embodiments described above are intended to illustrate the invention, and are not intended to limit the invention. As shown in FIG. 6, it is another embodiment of the present invention, wherein the center position of the ratchet 2 1 is set. The actuating portion 24 can also be a quadrangular column structure, whereby the ratchet wrench of the present invention can be used to lock a workpiece having a four-corner hole, and thus it can be seen that the workpiece can be smoothly driven to lock or relax. The shape of the actuator should be an equivalent embodiment of the invention.
即可用以固定該控制件41於 而由以上詳細說明後，係可使熟知本項技藝者明瞭本 發明的確可達成前述目的’實已符合專利法之規定，爰提 出專利申請。 11 1332885 【圖式簡單說明】 第1圖係本發明之立體分解圖 第2圖係本發明之使用示意圖，係用以顯示當撥動控 制件其開關部時之狀態 第3圖係本發明於使用狀態時之剖面示意圖，係用以 顯示控制件之頂推面頂壓於其中一掣動塊，並 迫使該彈性件壓縮時之狀態 第4圖係本發明於使用狀態時之剖面示意圖，係用以 顯示控制件之頂推面頂壓於另一掣動塊，並迫 使該彈性件壓縮時之狀態 第5圖係本發明於使用狀態時之剖面示意圖，係用以 顯示該控制件開關部上中間位置之定位槽與該 控制件相互卡合時之狀態 第6圖係本發明另一實施例之立體分解圖 第7圖係習用棘輪扳手之剖面示意圖 【主要元件符號說明】 (習用部分） 頭部9 1 棘輪9 3 掣動塊9 5 鎖固座9 7 握柄9 0 容置空間9 2 穿孔9 4 彈簧9 6 (本發明部分） 12 1332885 扳手本體11 扳動端1 3 容置部1 4 環凹部1 6 缺槽1 8 限位部1 8 2 壓鈕1 9 2 環齒2 2 掣動組件3 1 卡齒3 4 控制件4 1 扣環4 4 頂推面4 7 定位槽4 9 作用端1 2 容置部1 4 擋部1 5 導引槽1 7 控制孔181 彈性件1 9 1、3 3 棘輪2 1 作動部2 4 掣動塊3 2 受壓面3 6 凹槽4 2 定位槽4 6 開關部4 8It can be used to fix the control member 41. After the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives. 11 1332885 [Simplified illustration of the drawings] Fig. 1 is a perspective exploded view of the present invention. Fig. 2 is a schematic view showing the use of the present invention for displaying the state of the switch portion when the control member is toggled. A schematic cross-sectional view showing the state in which the ejector surface of the control member is pressed against one of the swaying blocks and forcing the elastic member to be compressed. FIG. 4 is a schematic cross-sectional view of the present invention in use. The state in which the pushing surface of the control member is pressed against the other swaying block and the elastic member is forced to be compressed. FIG. 5 is a schematic cross-sectional view of the present invention in use, for displaying the switch portion of the control member. 6 is a perspective view of a conventional ratchet wrench according to another embodiment of the present invention. [Main component symbol description] (conventional part) Head 9 1 Ratchet 9 3 Tilting block 9 5 Locking seat 9 7 Grip 9 0 accommodating space 9 2 Perforation 9 4 Spring 9 6 (part of the invention) 12 1332885 Wrench body 11 Trigger end 1 3 Housing 1 4 Ring recess 1 6 Missing slot 1 8 Limiting part 1 8 2 Push button 1 9 2 Ring tooth 2 2 Tilting component 3 1 Tooth 3 4 Control part 4 1 Buckle 4 4 Pushing surface 4 7 Positioning groove 4 9 Acting end 1 2 Housing 1 4 Stop 1 5 Guide groove 1 7 Control hole 181 Elastic member 1 9 1 , 3 3 Ratchet 2 1 Actuator 2 4 Pry block 3 2 Pressure surface 3 6 Groove 4 2 Positioning groove 4 6 Switch part 4 8
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