201247366 六、發明說明： 【發明所屬之技術領域】 [0001] 有關，尤指一種開 本發明係與可供單向驅動之扳手 口式棘輪扳手。 【先前技術】 按，-般，式之棘輪扳手雖具有可單向傳動螺件 而可達職速轉減件切效，“制之棘輪扳手利 用彈性件㈣料塊以達到單針k零件組成過於繁 雜，除了會造成組裝及轉上之錢，更讀容易打滑 而卡掣效果不佳之缺點存在’且在某些無法由上方直接 套接於螺件外緣之特定X作環境下m可由螺件側 面套入之開口扳手來進行旋鎖卫作，而仍有其不便之處 闺 有鑑於此，故如何解決上述問題，即為本發明所欲 解決之首要課題，因此，本案發明人乃根據日前所提出 之申請案號第0 9 9 1 4 0 8 6 8號「單向 發明案，並在《明案之元件組合架構下延伸出本❹月 案之開口式棘輪扳手。 【發明内容】 [0004] 本發明目的之—，係在於提供—種_元件結構组 成之開口式棘輪扳手其係整合有.㈣與棘輪板手之 優點，而可廣泛適用於所有工作環境下之旋鎖工作，以 及具有可快速轉動螺件而有效節省操作時間之功效。 [0005] 100117236 不赞明目的之二，係在於提供—種具有結構簡單而 可有效降低製造成本，以及組裝快迷、容 … 合易之開口式棘 表單編號A0101 第3頁/共18頁 1002028979-0 201247366 輪扳手。 [0006] [0007] [0008] [0009] [0010] [0011] 本發明目的之三，係在於提供一種抗扭力強度高、 工作精密度高之開口式棘輪扳手。 本發明目的之四，係在於提供一種可有效避免於空 轉過程中發生棘輪卡住咬死之情形。 為達前述之目的，本發明係提供一種開口式棘輪扳 手，其包含有： 一本體，具有一容置孔以及二以上支點部，該容置 孔一侧開設有一與外部相通之開口，並於該容置孔中設 有一傳動輪，該傳動輪中央具有一傳動孔，且該傳動孔 一侧係開設有一與該開口對應之置入口，並於該傳動輪 外周環設有一第一齒部，而該各支點部之一侧分別具有 一移位空間，並於該移位空間中設有一彈片，且該各支 點部位於該移位空間另一侧之相對斜坡上設有一由多數 細齒連續排列構成之卡齒段； 該各支點部中更分別設有一可受該彈片彈抵之卡掣 輪，該卡掣輪外周環設有一與該傳動輪第一齒部相嚙合 之第二齒部，以及一可藉該彈片之彈抵而與該支點部卡 齒段相嚙合之阻擋齒部，該卡掣輪係可受該傳動輪帶動 而朝該移位空間另一側相對斜坡上之卡齒段方向滚動抵 頂而形成卡掣狀態，使該傳動輪可進行單向傳動，且於 該傳動輪之置入口轉動至與其中一卡掣輪相對時，其餘 卡掣輪係仍可單向卡掣於該傳動輪上。 而本發明之上述目的與優點，不難從下述所選用實 100117236 表單編號A0101 第4頁/共18頁 1002028979-0 201247366 施例之詳細說明與附圖中，獲得深入了解。 [0012] 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。 【實施方式】 [0013] 首先，請參閱第1圖〜第3圖，係本發明所提供之 一種開口式棘輪扳手的第一實施例，其主要係由一本體 1 1以及一傳動輪3 1所組成，其中： [0014] 該本體11，具有一容置孔12，該容置孔12— 侧開設有一與外部相通之開口 1 3，並沿該容置孔1 2 周緣設有二以上相間隔之支點部1 4，且於該各支點部 1 4中更分別設有一卡掣輪2 1。 [0015] 於本實施例中，係於該容置孔1 2周緣設有二個相 間隔之支點部1 4為例，而該傳動輪3 1係容設於該容 置孔1 2中，該傳動輪3 1中央貫設有一可套接於螺件 外緣且呈多角狀之傳動孔3 2，並於該傳動輪3 1外周 環設有一第一齒部3 3，且該傳動孔3 2—侧係開設有 一與該開口 13對應之置入口34，該置入口34之口 徑寬度係小於該二支點部1 4彼此相隔的直線距離，而 該本體11用以帶動該傳動輪21轉動之方向係界定成 一驅動方向R，且該各支點部1 4於朝向該驅動方向R 之一侧係具有一移位空間1 4 1，而於該移位空間1 4 1中則嵌設有一彈片1 5，且該各支點部1 4位於該移 位空間1 4 1另一侧之相對斜坡上設有一由多數細齒連 續排列構成之卡齒段1 4 2。 100117236 表單編號 A0101 第 5 頁/共 18 頁 1002028979-0 201247366 [0016] 彈片:=ίΓ ，21係分別受該 彈片15彈抵，且於料卡掣輪2 1外周係分別環設有 -與該第-齒部33喃合之第二齒邹22，以及一可藉 該彈片1 5彈抵而於常時下與相對應支點部i 4卡脖 1 4 2相對响合之阻擋齒部2 3，該各卡擎輪2 二齒部2 2與該_齒部2 3係”環設於卡掣輪 外周之不同高度位置，該卡掣輪21係可受 1帶動而朝該移位空間“1另-側相對斜坡上之卡: 段1 4 2方向滾動，並以其阻擋齒部2 3抵頂於該卡齒 段1 4 2上且藉由該傳動輪3 i帶動該等卡擎輪2 1滾 動响合在相對斜坡上的卡齒段1 4 2時，將形成一㈣ (wedge)的反作用力，而可確實阻擋該傳動輪 ’最後抵消了驅動傳動輪3 1的扭力作用，即可形成卡 掣狀態（如第2®麻），並藉騎可於㈣該本體丄 1時’同步驅動接合於該傳動輪3 ^多角狀之傳動孔 32中之螺件41進行鎖緊或旋鬆之作業。201247366 VI. Description of the invention: [Technical field to which the invention pertains] [0001] In particular, the invention relates to a wrench-type ratchet wrench which is unidirectionally driven. [Prior Art] According to the general-purpose ratchet wrench, the one-way transmission screw can be used to achieve the effect of the speed-reducing part. The ratchet wrench made of elastic parts (four) blocks is used to achieve the single-needle k-part. Too complicated, in addition to the cost of assembly and transfer, the disadvantage of being easy to slip and the poor effect of the card is present, and in some specific X environments where the outer edge of the screw cannot be directly attached from above, The open-end wrench that is inserted into the side of the piece is used for the twist-locking protection, and there are still some inconveniences. Therefore, how to solve the above problem is the primary problem to be solved by the present invention. Therefore, the inventor of the present invention is based on The application number No. 0 9 9 1 4 0 8 8 8 of the application number mentioned in the previous day is a one-way invention case, and the open type ratchet wrench which extends the present case under the component combination structure of the Ming case. [Summary of the Invention] [0004] The object of the present invention is to provide an open type ratchet wrench which is composed of a component structure and which has the advantages of (4) and a ratchet wrench, and can be widely applied to the twist lock work in all working environments. And have The utility model can effectively reduce the operation time by turning the screw at a high speed. [0005] 100117236 The second purpose of disapproving is to provide an open type which has a simple structure and can effectively reduce the manufacturing cost, and is easy to assemble and fit. Spine form number A0101 Page 3 / 18 pages 1002028979-0 201247366 Wheel wrench [0006] [0010] [0011] [0011] The third object of the present invention is to provide a high torsional strength An open type ratchet wrench with high precision of operation. The fourth object of the present invention is to provide a situation that can effectively avoid ratcheting and seizing during idling. To achieve the foregoing purpose, the present invention provides an open type The ratchet wrench includes: a body having a receiving hole and two or more fulcrum portions, wherein the receiving hole has an opening communicating with the outside, and a driving wheel is disposed in the receiving hole, the driving wheel The central portion has a transmission hole, and a side of the transmission hole is provided with a corresponding opening corresponding to the opening, and a first tooth portion is disposed on the outer circumference ring of the transmission wheel, and one side of the fulcrum portion Having a displacement space, and a spring piece is disposed in the displacement space, and the fulcrum portion is located on the opposite slope of the other side of the displacement space, and a knuckle segment formed by continuously arranging a plurality of fine teeth is disposed; Each of the fulcrum portions is further provided with a caliper wheel which is responsive to the elastic piece, and the outer circumference ring of the sprocket wheel is provided with a second tooth portion which is engaged with the first tooth portion of the transmission wheel, and a sprocket a blocking tooth portion that is engaged with the nipper portion of the fulcrum portion, and the sprocket wheel train is driven by the transmission wheel to roll toward the top of the opposite side of the displacement space Forming a click state, the transmission wheel can be driven in one direction, and when the inlet of the transmission wheel is rotated to be opposite to one of the clamping wheels, the remaining locking wheel can still be unidirectionally engaged on the driving wheel . The above objects and advantages of the present invention are not difficult to obtain from the detailed descriptions and drawings of the following examples: 100117236 Form No. A0101 Page 4 of 18 1002028979-0 201247366. [0012] Of course, the present invention may be different in some of the components, or the arrangement of the components, but the selected embodiments are described in detail in the present specification. [First Embodiment] Referring to Figures 1 to 3, a first embodiment of an open type ratchet wrench according to the present invention is mainly composed of a body 1 1 and a transmission wheel 3 1 . The main body 11 has a receiving hole 12, the opening of the receiving hole 12 is open to the outside, and two or more phases are arranged along the periphery of the receiving hole 1 2 . The fulcrum portion 14 is spaced apart, and a caliper wheel 21 is further provided in each of the fulcrum portions 14 . [0015] In the present embodiment, the fulcrum portion 14 is disposed on the periphery of the accommodating hole 12, and the locating portion 1 is disposed in the accommodating hole 12, The transmission wheel 3 1 is provided with a transmission hole 32 2 which is sleeved on the outer edge of the screw member and has a polygonal shape, and a first tooth portion 3 3 is disposed on the outer circumference ring of the transmission wheel 3 1 , and the transmission hole 3 is provided. The side opening is provided with a receiving opening 34 corresponding to the opening 13. The diameter of the opening 34 is smaller than the linear distance between the two supporting points 14 , and the body 11 is used to drive the driving wheel 21 to rotate. The direction is defined as a driving direction R, and each of the fulcrum portions 14 has a displacement space 141 on one side of the driving direction R, and a spring piece 1 is embedded in the displacement space 141. 5, and the fulcrum portions 14 are located on the opposite sides of the other side of the displacement space 141, and a spur section 142 composed of a plurality of fine teeth continuously arranged is disposed. 100117236 Form No. A0101 Page 5 of 18 1002028979-0 201247366 [0016] The shrapnel:=ίΓ, the 21 series are respectively bounced by the shrapnel 15 and are respectively looped around the outer circumference of the picking wheel 2 1 - and The second tooth portion 22 of the first tooth portion 33 is slid, and a blocking tooth portion 23 that can be slid by the elastic piece 15 and is relatively in common with the corresponding fulcrum portion i 4 the neck portion 1 4 2 The two gear portions 2 2 and the _ tooth portion 2 3 are "circularly arranged" at different height positions on the outer circumference of the cassette wheel, and the click wheel 21 can be driven by 1 to face the displacement space "1". The card on the other side of the opposite slope: the segment 1 4 2 is rolled in the direction, and the blocking tooth portion 2 3 is abutted against the toothed segment 1 4 2 and the card wheel 2 is driven by the transmission wheel 3 i 1 When the rolling ring is engaged with the latching section 1 4 2 on the opposite slope, a (four) (wedge) reaction force will be formed, and the transmission wheel 'can be surely blocked to finally cancel the torque of the driving transmission wheel 3 1 Forming a click state (such as 2nd + hemp), and by means of (4) the body 丄 1 'synchronously driving the screw 41 engaged in the transmission hole 3 ^ polygonal drive hole 32 for locking Or unscrewing the job.
[0017] [ωΐ8] 反之，當該本體1 1朝向相反該驅動方向R轉動時 ，該等卡掣輪2 1之阻擋齒部2 3即會滾動遠離在相對 斜坡上之卡齒段1 4 2並壓縮該彈片2 1而朝該移位空 間1 4 1移動，進而即可解除與該卡齒段1 4 2之嚙合 狀態，此時由於斜坡的反作用力消失，而使該本體工丄 於反向旋擺時可構成不連動傳動輪3 i之空轉狀態，並 藉此使該傳動輪3 1可達到單向㈣螺件4 1之功效。 且由於該傳動輪3 1置入口 3 4之口徑寬度係小於 該二支點部1 4彼此相隔的直線距離，因此如第4圖所[0017] [ωΐ8] Conversely, when the body 11 is rotated in the opposite driving direction R, the blocking teeth 2 of the latching wheels 2 1 will roll away from the latching segments 1 4 2 on the opposite slopes. And compressing the elastic piece 2 1 and moving toward the displacement space 1 4 1 , so that the meshing state with the toothed segment 14 2 can be released, and at this time, the reaction force of the slope disappears, and the body is destroyed. When the swing is swung, the idle state of the non-coupling transmission wheel 3 i can be formed, and thereby the transmission wheel 31 can achieve the function of the one-way (four) screw 4 1 . And since the diameter of the opening of the transmission wheel 3 1 is smaller than the linear distance between the two fulcrums 14 , as shown in Fig. 4
100117236 表單編號A0101 第6頁/共18 頁 1002028979-0 201247366 [0019] Ο [0020] [0021] ο [0022] [0023] 示，當其中一卡掣輪2 1轉動至與該傳動輪3 1置入口 3 4相對而無法對該傳動輪3 1構成單向卡掣時，其餘 卡掣輪21之係仍可單向卡掣於該傳動輪31上而維持 於正常運作。 再者，本發明更藉由該各支點部1 4之移位空間1 4 1中設有一可相對彈抵該卡掣輪2 1之彈片1 5，而 使本發明於進行空轉過程中，若該卡掣輪2 1之第二齒 部2 2經該傳動輪3 1之置入口 3 4而再次嚙合於該第 一齒部3 3上，而有該第一齒部3 3與第二齒部2 2齒 鋒相互頂掣之現象發生時，如第5圖所示，此時該卡掣 輪21即可藉兩齒鋒相互頂掣之力道迫使該彈片15壓 縮而得朝該移位空間1 4 1方向位移，並藉此即可有效 避免該傳動輪31於空轉過程中發生卡住咬死之情形。 而藉由上述結構所組成之本發明係可具有以下優點 1 ·本發明係整合開口扳手與棘輪扳手之優點，而可廣 泛適用於所有工作環境下之旋鎖工作，以及具有可快速 轉動螺件而有效節省操作時間之功效。 2 .本發明之結構簡單，因此具有可有效降低製造成本 ，以及組裝快速、容易之優點。 3 ·本發明藉由該等卡掣輪2 1之阻擋齒部2 3係可於 該本體1 1朝向該驅動方向R轉動時與該等支點部1 4 卡齒段1 4 2相對抵頂，因此當使用者朝向該驅動方向 R所施之力道越大時，該卡齒段1 4 2與該阻擋齒部2 100117236 表單編號Α0101 第7頁/共18頁 1002028979-0 201247366 3相互間所產生的斜坡反作用力也將越大’而可具有極 佳的抗扭力強度，並進而使本發明所組成之開口式棘輪 扳手在使用上可更為確實且不易發生滑動現象。 [0024] 4·本發明藉由該傳動輪31係可帶動該被卡掣輪21 模擬出多倍齒數之動作，因此更可降低工作所需角度以 及有效提昇其工作精密度，使本發明所構成之開口式棘 輪扳手更可達到接近於無段驅動之功效，而可適用於狭 窄的工作空間。 [0025] 5 .本發明更藉由該各支點部1 4之移位空間1 4 1中 設有一可相對彈抵該卡掣輪2 1之彈片1 5，而可有效 避免該傳動輪31與該卡掣輪21於空轉過程中因齒鋒 相互頂掣而造成卡住咬死之情形。 [0026] 然於此必須特別提出說明的是，本發明當然更可藉 由增加該支點部1 4之數量，以有效提升該傳動輪3 1 於進行旋鎖螺件4 1工作時之穩定性與強度。如第6圖 所示’其係為本發明之第二實施例，於此實施例中，係 沿該本體11容置孔周緣設有三個呈相互間隔之支點部 1 4 ’並於該各支點部1 4中分別設有一可單向卡掣於 該傳動輪3 1上之卡掣輪2 ;l，並藉此更可模擬出較多 倍數之喝合齒數，而更可有效提升該傳動輪31之運轉 穩定性與抗扭力強度之功效。 接著請繼續參閱第7圖，其係為本發明之第三實施 例而其與上述第一實施例之差異係在於，該本體1 1 之谷置孔1 2内壁凹設有二相間隔之支點部1 4b，且 100117236 表單編號A0101 第8頁/共18頁 1002028979-0 [0027] 201247366 設於該各支點部1 4 b中之卡掣輪3 1 b外周分別環設 [0028] 有一可與該第一齒部3 3相互嚙合之第二齒部22b， 並於該第二齒部2 2 b之各齒峰端面處分別設有複數個 由細齒所構成之阻擋齒部23b，且該第二齒部22b 與該阻擋齒部2 3 b係分別環設於該卡掣輪2 1外周面 之相同高度位置。 而藉由上述構件所組成之本發明第三實施例，當該 本體1 1在朝向該驅動方向R轉動時，該等卡掣輪2 1 ❹ 同樣可受該傳動輪31帶動而朝該各支點部14b移位 空間1 4 1 b另一侧相對斜坡上之卡齒段1 4 2 b方向 滚動，並以其阻檔齒部2 3 b相對抵頂於該卡齒段1 4 2 b上，而構成可阻擋該傳動輪3 1轉動之阻力，以達 到可單向驅動工件之功效者。 [0029] 惟，以上所述實施例之揭示係用以說明本發明，並 非用以限制本發明，故舉凡數值之變更或等效元件之置 換仍應隸屬本發明之範疇。 〇 W [0030] 綜上所述，本發明係已具有相當的進步性及實用性 ，且經以上詳細說明後，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，故 本案發明人爰依法提出申請。 [0031] 【圖式簡單說明】 第1圖係本發明第一實施例之結構示意圖 [0032] 第2圖係本發明第一實施例之使用狀態示意圖，係用以 顯示當傳動輪與卡掣輪相互卡掣時之狀態 100117236 表單編號A0101 第9頁/共18頁 1002028979-0 201247366 [0033] [0034] [0035] 第3圖係本發明第一實施例之使用狀態示意圖，係用以 顯示當傳動輪與卡掣解除卡掣時之狀態 第4圖係本發明第一實施例之使用狀態示意圖，係用以 顯示當其中--^掣輪轉動至與傳動輪置入口相對時之狀 態 第5圖係本發明第一實施例之使用狀態示意圖，係用以 顯示當空轉狀態下傳動輪與卡掣輪之齒鋒相互頂掣時之 狀態 [0036] [0037] [0038] [0039] [0040] [0041] [0042] [0043] [0044] 第6圖係本發明第二實施例之結構示意圖 第7圖係本發明第三實施例之結構示意圖 【主要元件符號說明】 本體1 1開口 1 3 容置孔1 2 支點部1 4、1 4 b 移位空間1 4 1、1 4 1 b 卡齒段1 4 2、1 4 2 b 彈片1 5 卡掣輪2 1、2 1 b 第二齒部2 2、2 2 b 阻擋齒部2 3、2 3 b 傳動輪3 1 第一齒部3 3 傳動孔3 2 置入口 3 4 〇100117236 Form No. A0101 Page 6 of 18 1002028979-0 201247366 [0019] [0022] [0023] [0023] [0023] When one of the click wheels 2 1 is rotated to the drive wheel 3 1 When the inlet 34 is opposite and the one-way cassette cannot be formed on the transmission wheel 31, the remaining cassettes 21 can still be unidirectionally clamped to the transmission wheel 31 to maintain normal operation. Furthermore, in the present invention, by providing a spring piece 15 which is relatively movable against the click wheel 2 1 in the displacement space 1 4 1 of the fulcrum portion 14 , the present invention is subjected to the idling process. The second tooth portion 2 2 of the latching wheel 2 1 is again engaged with the first tooth portion 3 3 via the inlet 34 of the transmission wheel 3 1 , and the first tooth portion 3 3 and the second tooth portion When the phenomenon of the top 2 of the tooth front occurs, as shown in Fig. 5, at this time, the click wheel 21 can force the elastic piece 15 to be compressed toward the shifting space by the force of the two tooth fronts. 1 4 1 direction displacement, and thereby can effectively avoid the jamming of the transmission wheel 31 during the idling process. The invention composed of the above structure can have the following advantages: 1. The invention integrates the advantages of the open end wrench and the ratchet wrench, and can be widely applied to the work of the twist lock in all working environments, and has the function of quickly rotating the screw It effectively saves the effect of operating time. 2. The structure of the present invention is simple, and therefore has the advantages of being able to effectively reduce the manufacturing cost, and being quick and easy to assemble. 3. The present invention is configured such that the blocking tooth portion 23 of the latching wheel 2 1 can be opposed to the fulcrum portion 14 of the latching portion 1 4 2 when the body 11 is rotated toward the driving direction R. Therefore, when the force path applied by the user toward the driving direction R is larger, the toothed segment 1 4 2 and the blocking tooth portion 2 100117236 form number Α0101 page 7 / total 18 pages 1002028979-0 201247366 3 are generated from each other. The slope reaction force will also be larger, and it can have excellent torsional strength, and in turn, the open type ratchet wrench composed of the present invention can be more sure and less likely to slip in use. [0024] 4. The present invention can drive the clicked wheel 21 to simulate the action of multiple times of the number of teeth by the driving wheel 31, thereby reducing the working angle and effectively improving the working precision, so that the present invention The open-ended ratchet wrench is designed to be close to the stepless drive and can be used in narrow working spaces. [0025] 5. The present invention further provides a resilient piece 15 that can be relatively opposed to the locking wheel 2 1 in the displacement space 1 4 1 of the fulcrum portion 14 , thereby effectively avoiding the transmission wheel 31 The click wheel 21 is jammed by the tooth fronts during the idling process. [0026] However, it must be particularly noted that the present invention can of course increase the stability of the transmission wheel 3 1 during the operation of the twist-lock screw 4 1 by increasing the number of the fulcrum portions 14 . With strength. As shown in FIG. 6 , which is a second embodiment of the present invention, in this embodiment, three fulcrum portions 1 4 ′ are disposed along the circumference of the receiving hole of the body 11 and are spaced apart from each other. Each of the portions 1 4 is provided with a latching wheel 2; 1 which can be unidirectionally clamped on the driving wheel 3 1 , and thereby more than a plurality of drinking teeth can be simulated, and the transmission wheel can be effectively improved. 31's operational stability and anti-torsion strength. Please refer to FIG. 7 again, which is a third embodiment of the present invention, and the difference from the first embodiment is that the inner wall of the valley hole 1 2 of the body 1 1 is concavely provided with two fulcrums. Part 1 4b, and 100117236 Form No. A0101 Page 8 / Total 18 Page 1002028979-0 [0027] 201247366 The outer circumferences of the cassettes 3 1 b provided in the respective fulcrum portions 1 4 b are respectively [0028] The second tooth portion 22b that the first tooth portion 3 3 meshes with each other, and the plurality of blocking tooth portions 23b formed by the fine teeth are respectively disposed at the end faces of the respective tooth peaks of the second tooth portion 2 2 b, and the The second tooth portion 22b and the blocking tooth portion 2 3 b are respectively disposed at the same height position of the outer circumferential surface of the click wheel 2 1 . With the third embodiment of the present invention, which is composed of the above-mentioned members, when the body 11 is rotated toward the driving direction R, the latching wheels 2 1 ❹ can also be driven by the driving wheel 31 toward the fulcrums. The other side of the displacement space 1 4 1 b is rolled in the direction of the toothed section 1 4 2 b on the opposite side of the slope, and the resisting tooth portion 2 3 b is relatively opposed to the latching section 1 4 2 b And forming a resistance that can block the rotation of the transmission wheel 31 to achieve the function of driving the workpiece in one direction. The disclosure of the above-described embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention. [0030] In summary, the present invention has been made with considerable progress and practicality, and after the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objectives and The provisions of the Patent Law, the inventor of this case filed an application in accordance with the law. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of a first embodiment of the present invention. FIG. 2 is a schematic view showing the state of use of the first embodiment of the present invention for displaying a drive wheel and a cassette. State when the wheels are mutually locked 100117236 Form No. A0101 Page 9/18 pages 1002028979-0 201247366 [0035] [0035] FIG. 3 is a schematic view showing the state of use of the first embodiment of the present invention for displaying FIG. 4 is a view showing a state of use of the first embodiment of the present invention when the drive wheel and the cassette are released from the cassette, and is for displaying a state in which the rotation of the wheel is reversed to the position of the drive wheel. 5 is a schematic view showing the state of use of the first embodiment of the present invention, which is used to display the state when the gear wheel of the transmission wheel and the pinch wheel are topped each other in the idling state [0036] [0038] [0039] [0044] FIG. 6 is a schematic structural view of a second embodiment of the present invention. FIG. 7 is a schematic structural view of a third embodiment of the present invention. 1 3 accommodating hole 1 2 fulcrum part 1 4, 1 4 b shifting space 1 4 1 1 4 1 b Knife segment 1 4 2, 1 4 2 b Shrapnel 1 5 Clamping wheel 2 1 , 2 1 b Second toothing 2 2, 2 2 b Blocking tooth 2 3, 2 3 b Transmission wheel 3 1 First tooth portion 3 3 transmission hole 3 2 inlet 3 4 〇
驅動方向RDriving direction R
[0045]螺件 4 1 100117236 表單編號A0101 第10頁/共18頁 1002028979-0[0045] Screw 4 1 100117236 Form No. A0101 Page 10 of 18 1002028979-0