M3 08143 八、新型說明： 【新型所屬之技術領域】 本新型疋有關於一種棘輪裝置，特別是指一種扭力較 大與使用壽命較長的棘輪裝置。 【先前技術】 圖1與圖2顯示習知-種棘輪裝置卜該棘輪裝置】適 用於供各種起子頭20安裝，並包含-固定單元U、-切換 單元12以及一棘輪單元13。 ^口疋單元11包括一沿長向延伸的本體m，該本體 ⑴具有一工作端面112、-相反於該工作端面112並安裝 於-手把上的驅動端面113、一連接該工作、驅動端面ιΐ2 113的本體外周面114，以及二個相互間隔並鄰近該工作 端面112的容納盲槽115。 遠切換單το 12包括一旋轉地套設於該本體lu的切換 % 121 °亥切換裱121具有二個相對應該等容納盲槽115形 成於一内周面的卡掣槽122。 該棘輪單元13包括一套設於該本體⑴的工作端面 112並供該起子頭20安裝的棘輪i3i、二個分別設置於該等 合、、内盲槽115的彈性元件132，以及分別設置於該等彈性元 件132二外端的一第一掣？ 133與-第二掣子134 ,該等卡 擎槽122分別供該等掣子133、134伸人，該棘輪ΐ3ι具有 夕數個％設於一内周面受該等掣子133、134限制的棘齒 135 〇 5亥等切換環121可以相對該本體111在一固定位置、一 M308143 順向位置，以及一反向位置轉動。 參閱圖1與圖2，當該切換環121在該固定位置時，該 第一、二掣子133、134分別伸入該等卡掣槽122中，且= 第一、二擎子133、134能限制該等棘齒135,使該棘^ 131相對於該本體1U無法旋轉，而產生雙向帶動的功能。"M3 08143 VIII. New description: [New technical field] The new type relates to a ratchet device, in particular to a ratchet device with a large torque and a long service life. [Prior Art] Figs. 1 and 2 show a conventional ratchet device which is suitable for mounting various types of screwdriver heads 20, and includes a fixing unit U, a switching unit 12, and a ratchet unit 13. The mouthpiece unit 11 includes a body m extending in a long direction, the body (1) having a working end face 112, a driving end face 113 opposite to the working end face 112 and mounted on the handlebar, and a connection connecting the working and driving end faces The outer peripheral surface 114 of the ιΐ2 113, and two receiving blind grooves 115 spaced apart from each other and adjacent to the working end surface 112. The remote switching unit το 12 includes a switching sleeve rotatably disposed on the body lu. The 121 亥 121 has two latching slots 122 corresponding to the accommodating blind grooves 115 formed on an inner peripheral surface. The ratchet unit 13 includes a set of a ratchet wheel i3i disposed on the working end surface 112 of the body (1) and mounted on the driver head 20, and two elastic members 132 respectively disposed on the inner and outer blind grooves 115, and respectively disposed on A first one of the outer ends of the elastic members 132? 133 and - the second dice 134, the card slots 122 are respectively provided for the dice 133, 134, and the ratchet ΐ 3ι has a U.S.% set on an inner circumference and is restricted by the dice 133, 134 The switching ring 121 of the ratchet 135 〇5 hai can be rotated relative to the body 111 at a fixed position, a forward position of M308143, and a reverse position. Referring to FIG. 1 and FIG. 2, when the switching ring 121 is in the fixed position, the first and second dice 133, 134 respectively extend into the latching slots 122, and the first and second dice 133, 134 The ratchets 135 can be restrained so that the ratchets 131 cannot rotate relative to the body 1U, thereby generating a two-way driving function. "
參閱圖1與圖3，當該切換環121在該順向位置時，該 第一掣子133被該切換環121限縮於該容納盲槽115中，且 無法觸及该棘輪早元13的棘齒135，該第二掣子134伸入 ，亥卡掣槽122中，並能限制該等棘齒135，使該棘輪m只 能相對該本體111沿一第一方向A旋轉，而產生單向帶動 的功能。 參閱圖1與圖4，當該切換環121在該反向位置時，該 第二掣子134被該切換環121限縮於該容納盲槽丨15中，且 無去觸及該棘輪單元13的棘齒135，該第一掣子us伸入 該卡掣槽122中，並能限制該等棘齒135，使該棘輪i3i只 能相對該本體m沿一第二方向B旋轉，而產生單向帶動 的功能。 該棘輪裝置1雖然可以達到使用者雙向或單向帶動該 起子頭20轉動的功能，但仍有以下缺失： - '該第_或第二掣？ 133、134在限制該等棘齒135 時，在限制某一個轉動方向時，只有單一掣子受力，因此 有時抓力不足會使棘齒135滑動，導致有扭力不足的缺失 二、在限制某一個轉動方向時，只有單一掣子受力 6 M308143 會使得該第-、二_子133、134與料棘齒i35所承受力 道很大，該第…二掣？ 133、134與該等棘齒135的磨耗 也較大，導致有使用壽命較短的缺失。 【新型内容】 ^此，本新型之目的，即在提供一種可以扭力較大且 使用哥命較長的棘輪裝置。 於是，本新型棘輪裝置適用於供各種起子頭安裝，並 包含一固定單元、一切換單元以及一棘輪單元。 该固定單元包括一沿長向延伸的本體，該本體具有一 工作端面、一相反於該工作端面的驅動端面、一連接該工 作、驅動端面的本體外周面，以及二個相互間隔的容納槽 。忒等谷納槽鄰近該工作端面，每一個容納槽貫穿該本體 且相反二端皆形成於該本體外周面。 該切換單元包括一旋轉地套設於該本體的切換環，該 切換環具有四個相對應該等容納槽形成於一内周面的卡掣 槽。 5亥棘輪單元包括一套設於該本體的工作端面並供該起 子頭安裝的棘輪、二個分別設置於該等容納槽的彈性元件 ’以及分別設置於該等彈性元件相反二端的一第一掣子、 一第二掣子、一第三掣子與一第四掣子，該等卡掣槽分別 供該等掣子伸入，該棘輪具有多數個環設於一内周面受該 專擎子限制的棘齒。 本新型棘輪裝置的功效在於該第一、二、三、四掣子 的設置’使得扭力增大，且該等掣子受力減少，使得該棘 M308143 輪裝置的使用壽增長。 【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 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 请楚的呈現。 參閱圖5、圖6、圖7,本新型棘輪裝置之較佳實施例 適用於供各種起子頭安裝，並包含一固定單元3、一切換單 元4以及一棘輪單元5。 該固定單元3包括一沿長向延伸的本體31，以及一 C 型環32。該本體31具有一工作端面311、一相反於該工作 端面311的驅動端面312、一連接該工作、驅動端面311、 312的本體外周面313、二個相互間隔且平行的容納槽34、 一容件槽35，以及一環槽36。該本體外周·面313具有一連 接該驅動端面312的根面段314、一徑寬小於該根面段314 並連接該工作端面311的端面段315，以及一連接該根、端 面段314、315的肩面段316。 該等容納槽34鄰近該工作端面311，每一値容納槽34 貫穿該本體31且相反二端皆形成於該本體外周面313的端 面段315，該容件槽35鄰近該驅動端面312，並形成於該 根面段3 14沿徑向朝内延伸。該環槽36形成於該端面段 315，該C型環32套設於該環槽36上。 該切換單元4包括一旋轉地套設於該本體31的切換環 41、一設置於該容件槽35中的切換彈簧42，以及一設置於 該切換彈簧42 —外端的鋼珠43。 8 M3 08143 /切換％ 41具有一相對該根 一自該外環邱4n敕4#缸± 仅314的外環部4Π、 以卜嶮。卩411鄰近該棘輪單元s 段315延伸的始户邡緣工向朝該端面 ▲ L伸的推搶部4i2、四個相對應該等容 於㈣擋部412 一内周面的卡掣槽414 :，成 外環部411 一内周面的切_ 4]3 二個形成於該 於該切換槽413中。 X鋼珠43恆彈出卡制 該棘輪單元5包括—套設於該 並供該起子頭安裝的棘輪51、二個分別設置的於面二 34的彈性元件52，以…X專^槽 二端的—第_料q ^又置於料㈣⑼52相反 —第四丄3、-第二掣子54、-第三掣… 54 55棘輪51具有多數個環設於·'内周面供該等掣子53、 、55、56推動的棘齒511，以及一 512，該固宕置_ Q 形成於内周面的環槽 可卡制於該μ/的環《槽36鄰近該棘輪5卜該c型環32 個^ 51的環槽512中，該等彈性元件52為- 個壓縮彈簧。 T ^ — 吞亥第一、二掣子q 第三、四掣子55 54位於同-個容納槽3”，該 6位於另一個容_ 34中，該第一、 外周面313，·^目對該本體31 一轴心反向但彈出於該本體 向怪彈出科 yVHr "體外周面313，該切換單元4的卡掣_ 分別供該等擎子53、54、55、56伸入。卡幕槽414 參閱圖6、屠1 » ^ 體3!在-固定位置、，該等切換環41可以相對該本 順向位置，以及一反向位置轉動。 M3 08143 參閱圖6與圖7，去# _ γ减環41在該^位㈣，該 ^53.5Γ55 Γ 限制該等棘齒511 /別伸入該等卡_ 414巾，同時能 ，而產生雙向帶動的2棘輪51相對於該本體31無法旋轉 鋼珠與圖9 ’當該切換環41在該順向位置時，該 :1 #於該等側邊的切換槽413的其中_個，該第一 ' 55刀別被該切換環41限縮於該等容納槽34 ，且無法觸及該棘輪單元5的棘齒5U，該第二、四掣子 54、％分別伸人該等卡掣槽414中，同時限制該等棘齒⑴ ’使该棘輪51只能相對該本體，沿一第一方向c旋轉。 ▲參閱圖10與圖u，當該切換環41在該反向位置時， 該鋼珠43卡制於另外一個側邊的切換槽M3，該第二、四 掣子54、56被該切換環41限縮於該等容納槽34中，且無 法觸及該棘輪單元5的棘齒511，該第一、三掣子53、i 分別伸入該等卡掣槽414中’同時限制該#棘齒川，使該 棘輪51只能相對該本體31沿一第二方向D旋轉，而產生 單向帶動的功能。 該棘輪裝置不只能讓使用者雙向或單向帶動該起子頭 轉動，還具有以下功效： 一、該等掣子53、54、55、56在限制該等棘齒511時 ’在限制某一個轉動方向時，一定有二個掣子同時限制該 等棘齒511，因此有抓力充足使該本體31與該棘輪51很難 發生相對位移，.能承受較大的力道，因此具有扭力充足的 10 M308143 優點 ，—::在限制某一轉動方向時，同時會有二個掣子受力 母拏子又力比習知掣子減少—半，該相對應的棘齒511 也較為平均，該等擎子53、54、55、56與該等棘齒 的磨耗將減少，因此有使用壽命較長的功效。 ▲ f隹以上所述者，僅為本新型之較佳實施例而已，當不 :以此限疋本新型實施之範圍，即大凡依本新型巾請專利 範圍及新型說明内谷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】 圖1是一立體分解圖，說明習知一種棘輪裝置； 圖2是一剖視圖，說明一切換環相對一本體在一固定 位置； 圖3是一類似圖2的視圖，說明該切換環相對該本體 在一順向位置； 圖4是一類似圖2的視圖，說明該切換環相對該本體 在一反向位置； 圖5是一剖視圖，說明本新型棘輪裝置的一較佳實施 例； 圖6是一剖視圖，說明一切換環相對一本體在一固定 &置； 圖7是一剖視圖，說明切換環在該固定位置時，一棘 輪相對該本體無法旋轉； 圖8是一類似圖6的視圖，說明該切換環相對該本體 M308143 在一順向位置； =是-類似圖7的視圖，說明切換環在 "亥棘輪只能相對該本體沿一第一方向旋轉；頁向位置 ::是-類似圖6的視圖，說明該切換環相 在一反向位置；以及 粗 圖11是一類似圖7的視圖’說明切換環在該反向位置 時，该棘輪只能相對該本體沿一第二方向旋轉。Referring to FIG. 1 and FIG. 3, when the switching ring 121 is in the forward position, the first latch 133 is confined in the receiving blind slot 115 by the switching ring 121, and the ratchet of the ratchet early element 13 cannot be accessed. The second tweezer 134 extends into the Hecha slot 122 and can restrain the ratchets 135 such that the ratchet m can only rotate relative to the body 111 in a first direction A, resulting in a one-way Driven functions. Referring to FIG. 1 and FIG. 4, when the switching ring 121 is in the reverse position, the second latch 134 is confined in the receiving blind slot 15 by the switching ring 121, and the ratchet unit 13 is not touched. a ratchet 135, the first latch i protrudes into the latching slot 122, and can limit the ratchets 135, so that the ratchet i3i can only rotate relative to the body m in a second direction B, resulting in a one-way Driven functions. Although the ratchet device 1 can achieve the function of the user to rotate the screwdriver head 20 in both directions or in one direction, the following defects are still present: - 'The first or second? 133, 134 When limiting the ratchet teeth 135, when a certain direction of rotation is restricted, only a single forceps is stressed, so sometimes insufficient grip force causes the ratchet teeth 135 to slide, resulting in a lack of torque. In a certain direction of rotation, only a single forceps force 6 M308143 will make the first, second and second 133, 134 and the material ratchet i35 bear a large force, the second...? The wear of 133, 134 and the ratchets 135 is also large, resulting in a short life span. [New content] ^This, the purpose of the new model is to provide a ratchet device that can be used with a large torque and a long life. Thus, the novel ratchet device is suitable for use with a variety of screwdriver heads and includes a stationary unit, a switching unit and a ratchet unit. The fixing unit includes a body extending in a long direction, the body having a working end face, a driving end face opposite to the working end face, a body outer peripheral surface connecting the working and driving end faces, and two mutually spaced receiving grooves. The glutinous trough is adjacent to the working end face, each accommodating groove runs through the body and opposite ends are formed on the outer peripheral surface of the body. The switching unit includes a switching ring rotatably sleeved on the body, and the switching ring has four card slots corresponding to the receiving grooves formed on an inner circumferential surface. The 5Hear ratchet unit includes a set of a ratchet wheel disposed on the working end surface of the body and mounted to the driver head, two elastic members respectively disposed on the receiving slots, and a first one respectively disposed at opposite ends of the elastic members a rafter, a second tweezer, a third tweezer and a fourth tweezer, the card sump respectively for the scorpion to extend, the ratchet having a plurality of rings disposed on an inner circumference of the scorpion The ratchet of the limit. The effect of the novel ratchet device is that the setting of the first, second, third and fourth dice makes the torque increase, and the force of the tweezers is reduced, so that the service life of the ratchet M308143 wheel device is increased. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings. Referring to Figures 5, 6, and 7, the preferred embodiment of the present ratchet device is suitable for use with a variety of screwdriver heads and includes a stationary unit 3, a switching unit 4, and a ratchet unit 5. The fixing unit 3 includes a body 31 extending in a long direction, and a C-ring 32. The main body 31 has a working end surface 311, a driving end surface 312 opposite to the working end surface 311, a body outer peripheral surface 313 connecting the working and driving end surfaces 311, 312, and two mutually spaced and parallel receiving grooves 34. a slot 35, and a ring groove 36. The outer peripheral surface 313 has a root surface section 314 connecting the driving end surface 312, an end surface section 315 having a smaller diameter than the root surface section 314 and connecting the working end surface 311, and a connecting end and end surface sections 314 and 315. Shoulder section 316. The receiving groove 34 is adjacent to the working end surface 311, and each of the receiving grooves 34 extends through the body 31 and opposite ends are formed on the end surface portion 315 of the outer peripheral surface 313, and the container groove 35 is adjacent to the driving end surface 312, and Formed in the root section 3 14 extends radially inward. The annular groove 36 is formed in the end surface segment 315, and the C-shaped ring 32 is sleeved on the annular groove 36. The switching unit 4 includes a switching ring 41 rotatably sleeved on the body 31, a switching spring 42 disposed in the container slot 35, and a steel ball 43 disposed at an outer end of the switching spring 42. 8 M3 08143 / Switching % 41 has a relative outer ring from the outer ring Qiu 4n 敕 4 # cylinder ± only 314, 崄 崄. The 卩411 is adjacent to the ratchet unit s segment 315 and extends toward the end face ▲ L. The push-pull portion 4i2, which is opposite to the inner peripheral surface of the (four) stop portion 412, is correspondingly: The outer ring portion 411 is formed in the switching groove 413 by a cut _ 4] 3 of an inner circumferential surface. X steel ball 43 is constantly ejected and clamped. The ratchet unit 5 includes a ratchet wheel 51 disposed on the driver head and two elastic members 52 respectively disposed on the face plate 34, and the two ends of the slot The first material q ^ is placed again (4) (9) 52 opposite - fourth 丄 3, - second 54 54, - third 掣 ... 54 55 ratchet 51 has a plurality of rings set on the inner circumference of the 掣 53 , 55, 56 push ratchet 511, and a 512, the solid groove _ Q formed on the inner circumferential surface of the ring groove can be snapped to the μ / ring "slot 36 adjacent to the ratchet 5 b-ring Among the 32 ring grooves 512, the elastic members 52 are - compression springs. T ^ — Tenghai first and second dice q The third and fourth dice 55 54 are located in the same accommodating slot 3", and the 6 is located in another _ 34, the first and outer peripheral surfaces 313, · The main body 31 is inverted in an axial direction but popped out of the main body to eject the yVHr " outer peripheral surface 313, and the latches of the switching unit 4 are respectively inserted into the cylinders 53, 54, 55, 56. The card slot 414 refers to FIG. 6, the slider 1 » ^ body 3! In the - fixed position, the switching ring 41 can be rotated relative to the forward position and a reverse position. M3 08143 Referring to Figures 6 and 7, Going to # _ γ reduction ring 41 at the ^ position (4), the ^53.5Γ55 限制 restricting the ratchet teeth 511 / not extending into the card _ 414 towel, while enabling, and generating the two-way driven 2 ratchet 51 relative to the body 31 can not rotate the steel ball and FIG. 9 'When the switching ring 41 is in the forward position, the: 1 # is the one of the switching grooves 413 of the sides, the first '55 knife is not replaced by the switching ring 41 Restricted to the receiving slots 34 and unable to reach the ratchet teeth 5U of the ratchet unit 5, the second and fourth dice 54 and % respectively extend into the latching slots 414 while limiting the ratchets (1)' The ratchet 51 can only rotate relative to the body in a first direction c. ▲ Referring to FIG. 10 and FIG. u, when the switching ring 41 is in the reverse position, the steel ball 43 is clamped to another side of the switch. The slot M3, the second and fourth latches 54, 56 are confined in the receiving slots 34 by the switching ring 41, and cannot reach the ratchet teeth 511 of the ratchet unit 5, the first and third dice 53 and i Extending into the latching slots 414 respectively, while limiting the #ratchet, the ratchet 51 can only rotate relative to the body 31 in a second direction D, thereby generating a one-way driving function. The ratchet device is not limited. Having the user rotate the driver's head in both directions or in one direction, and has the following effects: 1. When the latches 53, 54, 55, 56 limit the ratchets 511, when there is a certain direction of rotation, there must be The two dice simultaneously limit the ratchets 511, so that the gripping force is sufficient to make the main body 31 and the ratchet 51 difficult to be displaced relative to each other, and can withstand a large force, so that the 10 M308143 has the advantage of sufficient torque, -: : When limiting a certain direction of rotation, there will be two dice that will force the mother to take it again. Compared with the conventional scorpion, the corresponding ratchet 511 is also relatively average, and the wear of the spurs 53, 54, 55, 56 and the ratchets will be reduced, so that the service life is long. ▲ f 隹 隹 隹 , 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹 隹Equivalent changes and modifications are still within the scope of the present patent. [Fig. 1 is an exploded perspective view showing a conventional ratchet device; Fig. 2 is a cross-sectional view showing a switching ring opposite to a body Figure 3 is a view similar to Figure 2 illustrating the switching ring in a forward position relative to the body; Figure 4 is a view similar to Figure 2 illustrating the switching ring in a reverse position relative to the body Figure 5 is a cross-sectional view showing a preferred embodiment of the ratchet device of the present invention; Figure 6 is a cross-sectional view showing a switching ring with respect to a body in a fixed position; Figure 7 is a cross-sectional view showing the switching ring at the fixing Position a ratchet wheel is incapable of rotating relative to the body; FIG. 8 is a view similar to FIG. 6 illustrating the switching ring in a forward position relative to the body M308143; = Yes - a view similar to FIG. 7 illustrating the switching ring in the "Hai ratchet wheel Can only rotate relative to the body in a first direction; page position: yes - similar to the view of Figure 6, illustrating the switching ring phase in a reverse position; and the rough image 11 is a view similar to Figure 7 - illustrating switching When the ring is in the reverse position, the ratchet can only rotate in a second direction relative to the body.
12 M308143 【主要元件符號說明】 3 ..........固定單元 31·……··本體 311 .......工作端面 312 .......驅動端面 ' 313.......本體外周面 • 314.......根面段 315.......端面段 ❿ 316 ····…肩面段 32……···0：型環 34.........容納槽 • 35.........容件槽 36.........環槽 4 ..........切換單元 41.........切換環 411 .......外環部 _ 412.......推播部 413……切換槽 414……卡掣槽 42 .........切換彈簧 43 .........鋼珠 5 ..........棘輪單元 51.........棘輪 511 .......棘齒 512 ••…··環槽 52··.......彈性元件 53··.......第一掣子 54 .........第二掣子 55 .........第三掣子 56 .........第四掣子 C..........第一方向 D..........第二方向 1312 M308143 [Description of main component symbols] 3 ..........Fixed unit 31·.·· Body 311 .......Working end face 312 .......Drive end face ' 313 .......The outer circumference of the body • 314.......root section 315.......end section ❿ 316 ····...shoulder section 32...···0: Type ring 34......... accommodating groove • 35......... container groove 36......... ring groove 4 ......... Switching unit 41 .... switching ring 411 . . . outer ring portion _ 412 . . . pushing portion 413 ... switching groove 414 ... card slot 42 .........switch spring 43 ......... steel ball 5 .......... ratchet unit 51 ... ... ratchet 511 ... .... ratchet 512 ••...··ring groove 52··.......elastic element 53··.......first dice 54......... The second dice 55 ......... the third dice 56 ......... the fourth dice C..........the first direction D... .......the second direction 13