M434653 五、新型說明： 【新型所屬之技術領域】 本案是關於棘輪扳手，用於轉動螺絲或螺帽或類似物 品° 【先前技術】 先前技術 US2188846、TW408653 (US7237460、 DE10066314、CA2356549、US6282992B1、DE10062853、 US2004139823)、US7237460B2、EP1215014A3 等專利案 已提出多種習知棘輪扳手技術。此等早期習知技術縱然有 其優點，仍有持續改良的空間。 【新型内容】 本案大致揭露： 一本體； 一棘輪，其配置於該本體中且具有界定該棘輪的一圓周 之複數個齒； 一第一掣爪，其彈性抵壓於該本體之一内周壁而常態性 地與棘輪耦合，其配置於該本體中並可相對於該棘輪可在 下列位置之間移動： 一第一位置，其中，在該第一位置處’該第一掣爪配置 於該本體與該棘輪之間，該第一掣爪與該棘輪耦合以使該 本體在一第一旋轉方向中經由該第一掣爪提供傳輸杻矩；及 一第上位置’其中，在該第二位置處，該第一擎爪不傳 輸扭矩； 一第二掣爪，其彈性抵壓於該本體之一内周壁而常態性 162734.doc 地與棘輪耦人， 下心打番D其配置於該本體中並可相對於該棘輪可在 罝之間移動： 第 位置，f tfa 於該本體鱼=、中，在該第一位置處，該第二掣爪配置 本體在一宽、該棘輪之間，該第二掣爪與該棘輪耦合以使該M434653 V. New description: [New technical field] This case relates to a ratchet wrench for turning a screw or a nut or the like. [Prior Art] Prior art US2188846, TW408653 (US7237460, DE10066314, CA2356549, US6282992B1, DE10062853, Various conventional ratchet wrench techniques have been proposed in the patents of US2004139823), US7237460B2, EP1215014A3, and the like. Even though these early-known techniques have their advantages, there is still room for continuous improvement. [New content] The present disclosure generally discloses: a body; a ratchet disposed in the body and having a plurality of teeth defining a circumference of the ratchet; a first pawl elastically biased against an inner peripheral wall of the body Normally coupled with the ratchet, it is disposed in the body and is movable relative to the ratchet between: a first position, wherein the first pawl is disposed at the first position Between the body and the ratchet, the first pawl is coupled to the ratchet such that the body provides a transmission moment via the first pawl in a first rotational direction; and an upper position 'where, in the second At the position, the first pawl does not transmit torque; a second pawl elastically presses against an inner peripheral wall of the body and is normally coupled with the ratchet by a normal 162734.doc, and is disposed on the body And movable relative to the ratchet between the rafts: a first position, f tfa at the body fish =, in the first position, the second pawl configuration body is between a width, the ratchet, The second pawl is coupled to the ratchet to
一一第二旋轉方向中經由該第二擎爪提供傳輸扭矩；及 第-位® 4+ I 輸扭矩· ^ ，在該第二位置處，該第二掣爪不傳 tft 其可經操作而停駐於至少下列位置其中之 一.一第一位置及一第二位置，其中： 當該㈣件位於位置時，該第—掣爪與該控制件 合且因而遠離第一掣爪之第一位置，因此允許該第二辈 爪與5亥棘輪耦合’以使該本體在該第二旋轉方向中提供傳 絡 in Λιτ · ^ 當該控制件位於該第二位置時，該第二擎爪與該控制件 輕合且因而遠離第二f爪之1位置，因此允許該第—擎 爪與該棘料合，以使該本體在該第—旋轉方向中提供 輸扭矩。 本案之其他實施例及詳細特點進一步說明如後。 【實施方式】 如圖1、圖2、® 3、圖4A、圖4B、圖5、圖6A、圖6B、 圖6C、圖6D及圖7所示，本案之棘輪扳手大致包括：—本 體（1〇)具有一握柄（12); —棘輪（40),其配置於該本體（ι〇) 中且具有界定該棘輪（40)的一圓周之複數個齒（42); 一第 拏爪（60)及一第一掣爪（80);及控制件（1 〇〇)。 162734.doc • 4- M434653 本體（10)具有—操作部（14)，該操作部（14)包括一凹槽 (16)，其由一底壁（18)及環繞底壁（18)之内周壁（2〇)所形 成。凹槽（16)之前端可容納該棘輪（4〇)、該第一掣爪（6〇)及 該第二掣爪（80)於其内。凹槽（16)内設有一第一壁（22)及一 第一壁（24)，該第一掣爪（6〇)及第二掣爪（8〇)分別設置於該 第一壁（22)及該第二壁（24)與棘輪（4〇)之間該第一壁 之構形使得當該第一掣爪（6〇)位於其第一位置時第一掣 爪擎於第一壁（22)與棘輪（40)之間而與棘輪（4〇)鳴 合’以提㈣傳輸扭矩；該第二壁（Μ)之構形使得當該第 二掣爪（8G)位於其第—位置時，第二掣爪㈣卡掣於第二 壁（24)與棘輪（4G)之間而與棘輪⑽）唾合，以提供傳輸扭 矩。 -平台設於凹槽（16)之末端。該平台從底壁（18)突出一 高度。控制件(100)可固定該平台上。該平台之一端由第一 壁（22)及第一壁（24)所定義。平台上設有孔（H1) ’以供控 制件（100)以可枢轉方式固定。 二 根據一較佳實施例，該第—壁⑽自-靠近内周壁⑽ ^弟—端朝向靠近㈣二壁（24)之—第二端延伸。該第 -壁（22)具有—斜度’使得該第二端與棘輪⑽）間之 比該第一端與棘輪_間之距離窄。該^壁㈣自—靠 近内周壁（2G)之—第—端朝向靠近該第-壁（22)之-第二 端延伸’該第二壁（24)且右λ, Λ 一 ⑽心❹ 度，使得該第二端與棘輪 ()間之距離比該第-端與棘輪（4〇)間之距離窄。 根據另-較佳實施例’凹槽〇6)包括兩容置室，分別容 162734.doc M434653 納該第一掣爪（60)及該第 二掣爪（8〇)於其内；其中一容置a second transmission direction provides a transmission torque via the second pawl; and a first position - 4 + I transmission torque · ^, at the second position, the second pawl does not transmit tft and is operable Causing in at least one of the following positions: a first position and a second position, wherein: when the (four) piece is in the position, the first jaw is engaged with the control member and thus away from the first jaw Position, thus allowing the second generation of claws to be coupled with the 5H ratchet wheel to cause the body to provide an envelope in the second direction of rotation in the second direction of rotation ^ιτ · ^ when the control member is in the second position, the second pawl The control member is lightly coupled and thus remote from the position of the second f-claw, thereby allowing the first pawl to engage the ratchet so that the body provides torque in the first rotational direction. Other embodiments and detailed features of the present application are further described below. [Embodiment] As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4A, Fig. 4B, Fig. 5, Fig. 6A, Fig. 6B, Fig. 6C, Fig. 6D and Fig. 7, the ratchet wrench of the present invention generally comprises: 1) has a handle (12); a ratchet (40) disposed in the body (10) and having a plurality of teeth (42) defining a circumference of the ratchet (40); (60) and a first pawl (80); and a control member (1 〇〇). 162734.doc • 4- M434653 The body (10) has an operating portion (14) including a recess (16) which is surrounded by a bottom wall (18) and around the bottom wall (18) The perimeter wall (2〇) is formed. The front end of the recess (16) can accommodate the ratchet (4〇), the first pawl (6〇) and the second pawl (80) therein. A first wall (22) and a first wall (24) are disposed in the recess (16), and the first claw (6〇) and the second claw (8〇) are respectively disposed on the first wall (22) And the configuration of the first wall between the second wall (24) and the ratchet (4〇) such that the first pawl is on the first wall when the first pawl (6〇) is in its first position (22) Between the ratchet (40) and the ratchet (4 〇) to raise (4) transmission torque; the second wall (Μ) is configured such that when the second pawl (8G) is at its In position, the second pawl (four) snaps between the second wall (24) and the ratchet (4G) and is sprinkled with the ratchet (10) to provide transmission torque. - The platform is located at the end of the recess (16). The platform protrudes from the bottom wall (18) by a height. A control member (100) can be attached to the platform. One end of the platform is defined by a first wall (22) and a first wall (24). A hole (H1)' is provided on the platform for the control member (100) to be pivotally secured. According to a preferred embodiment, the first wall (10) extends from near the inner peripheral wall (10) to the second end adjacent to the (four) two walls (24). The first wall (22) has a slope - such that the distance between the second end and the ratchet (10) is narrower than the distance between the first end and the ratchet. The wall (four) from - near the inner peripheral wall (2G) - the first end extends toward the second end of the first wall (22) - the second wall (24) and the right λ, Λ (10) ❹ degree The distance between the second end and the ratchet () is narrower than the distance between the first end and the ratchet (4〇). According to another preferred embodiment, the recess 〇6 includes two accommodating chambers 162734.doc M434653 respectively for the first pawl (60) and the second pawl (8〇) therein; Placement
凹槽（16)前端傾斜。 第一擎爪（60)配置於該本體〇〇)之第—壁（22)與該棘輪 (40)之間並可相對於該棘輪而在一第一位置及一第二位置 之間移動。在該第一你罢* . z 、 第二位置The front end of the groove (16) is inclined. The first pawl (60) is disposed between the first wall (22) of the body and the ratchet (40) and is movable relative to the ratchet between a first position and a second position. In the first you stop *. z, second position
轉方向中經由該第一掣爪（6〇)提供傳輸扭矩。在該第二位 置處，該第一掣爪（60)與該棘輪（4〇)分開，不傳輸扭矩。 第一掣爪（60)包括一位於棘輪（4〇)及第一壁（22)之間受 彈簧（s)偏壓的側面，使該第一掣爪（60)及第二掣爪常 惑性地與棘輪（40)耦合。根據一實施例，彈簧（§)之一端連 接到一穩固地抵靠於内周壁之固持件（68，88)。在常態下 (指未受控制件（100)控制的情形下），第一掣爪（6〇)受彈簧 (s)的施力而沿大致平行於第一壁（22)的方向朝向棘輪（4〇) 之齒部（42)緊靠。 第二掣爪（80)配置於該本體（10)之第二壁（24)與該棘輪 (40)之間並可相對於該棘輪而在一第一位置及一第二位置 之間移動。在該第一位置處，該第二掣爪（8〇)與該棘輪 (40)耦合並受第二壁（24)支持以使該本體（1〇)在一第二旋轉 方向中經由該第二掣爪（8〇)提供傳輸扭矩。在該第二位置 處’該第二掣爪（80)與該棘輪（40)分開，不傳輸扭矩。 第二掣爪（80)包括一位於棘輪（40)及第二壁（24)之間、受 162734.doc -6 - M434653 彈簧（s)偏壓的側面，使該第一掣爪（6〇)及第二掣爪（8〇)常 態性地與棘輪（40)耦合，根據一實施例，彈簧（s)之一端連 接到一穩固地抵靠於内周壁之固持件（68 , 88)。彈簧〇的 施力大致平行於第一壁（22)及第二壁（24)。在常態下（指未 受控制件（100)控制的情形下），第二掣爪（8〇)受彈簧（幻的 施力而沿大致平行於第二壁（24)的方向朝向棘輪（4〇)之齒 部（42)緊靠。因此，第一掣爪（6〇)及第二掣爪（8〇)在彈簧 (S)的偏壓下’愈向内側，齒的咬合愈緊9 ® 該第-掣爪(60)及第二掣爪(80)之間保持間隔分離，因 此兩者的移動不會互相干涉。 第一掣爪（60)及第二掣爪（80)之齒（62 , 82)的端齒（66， 86)分別自其側面（64，84)突出，助於第一掣爪（6〇)及第二 掣爪（80)在提供轉矩時，朝向第一壁（22)及第二壁（24)施 力。 控制件（100)可與一外接之換向開關（12〇)耦合，並以一 • 穿過控制件（100)中心之螺栓（101)固定。控制件（100)可經 操作（例如經由撥動一設於凹槽（16)外側的換向開關（12〇)) 而停駐於第一位置、一第二位置及中性位置的至少其中之 。如圖0A至圖6D所示，控制件00)之背面具有第一組 孔（104)、第二組孔（1〇6)、第三組孔（1〇8)，可分別與受彈 簧〇偏壓之一對鋼珠（Β)嚙合。 當該控制件（100)位於該第一位置時，即圖6Β所示（控制 件（100)右轉）’此時第一組孔（1〇4)與鋼珠（Β)嚙合該第一 掣爪（60)與該控制件（1〇〇)耦合、推動第一掣爪（6〇)之側面 162734.doc M434653The transmission torque is supplied via the first pawl (6〇) in the turning direction. At the second position, the first pawl (60) is separated from the ratchet (4〇) and no torque is transmitted. The first pawl (60) includes a side that is biased by the spring (s) between the ratchet (4〇) and the first wall (22), so that the first pawl (60) and the second pawl are confused Couplingly coupled to the ratchet (40). According to an embodiment, one end of the spring (§) is coupled to a retaining member (68, 88) that abuts firmly against the inner peripheral wall. In the normal state (in the case of uncontrolled part (100) control), the first pawl (6〇) is biased by the spring (s) toward the ratchet in a direction substantially parallel to the first wall (22) ( 4〇) The tooth (42) abuts. The second pawl (80) is disposed between the second wall (24) of the body (10) and the ratchet (40) and is movable relative to the ratchet between a first position and a second position. In the first position, the second pawl (8〇) is coupled to the ratchet wheel (40) and supported by the second wall (24) such that the body (1〇) passes through the first direction in a second direction of rotation Two jaws (8 inches) provide transmission torque. At the second position, the second pawl (80) is separated from the ratchet (40) and does not transmit torque. The second pawl (80) includes a side that is biased between the ratchet (40) and the second wall (24) and biased by a spring (s) of 162734.doc -6 - M434653 to cause the first pawl (6〇) And the second pawl (8〇) is normally coupled to the ratchet (40). According to an embodiment, one end of the spring (s) is coupled to a retaining member (68, 88) that abuts firmly against the inner peripheral wall. The spring force is applied substantially parallel to the first wall (22) and the second wall (24). In the normal state (in the case of uncontrolled part (100) control), the second pawl (8〇) is subjected to a spring (magic force applied in a direction substantially parallel to the second wall (24) toward the ratchet (4) The tooth portion (42) of the 〇) abuts. Therefore, the first pawl (6 〇) and the second pawl (8 〇) are closer to the inner side under the bias of the spring (S), and the bite of the teeth is tighter. ® The first jaw (60) and the second jaw (80) are spaced apart so that the movement of the two does not interfere with each other. The teeth of the first pawl (60) and the second pawl (80) The end teeth (66, 86) of (62, 82) protrude from the sides (64, 84), respectively, to assist the first pawl (6〇) and the second pawl (80) when providing torque A wall (22) and a second wall (24) apply a force. The control member (100) can be coupled to an external switch (12〇) and a bolt (101) passing through the center of the control member (100) The control member (100) is operable (e.g., by dialing a diverter switch (12〇) disposed outside the recess (16)) in the first position, a second position, and a neutral position At least one of them. As shown in Figure 0A to Figure 6D, control The back of the workpiece 00) has a first set of holes (104), a second set of holes (1〇6), and a third set of holes (1〇8), which can be respectively biased against the spring 〇 by a pair of steel balls (Β) Engage. When the control member (100) is located at the first position, that is, as shown in FIG. 6A (the control member (100) is turned right), the first group of holes (1〇4) mesh with the steel ball (Β) at the first time. The claw (60) is coupled to the control member (1〇〇) to push the side of the first pawl (6〇) 162734.doc M434653
只有第一掣爪（60)與該棘輪（4〇)耦合， 则1干祸合，而受 ►第一位置’因此允許 ’以使該本體（10)在該 第一旋轉方向中提供傳輸扭矩。當該控制件（1〇〇)位於該中 性位置時，即圖6A所示（控制件（1〇〇)位於中間），此時第二 組孔（106)與鋼珠（B)嚙合，該控制件（1〇〇)不與第一掣爪 (60)及第二掣爪（80)耦合，而同時允許該本體（1〇)在該第一 旋轉方向及該第二旋轉方向中提供傳輸扭矩，故呈現中間 鎖疋狀態。本案之一較佳實施例為，該控制件（丨〇〇)從第一 組孔（104)到第二組孔（106)之間、或從第二組孔（1〇6)到第 三組孔（108)之間’較佳間隔為2〇度。 在組裝時’一固定件（44)用來使棘輪（4〇)樞轉固定於操 作部，當各元件裝入凹槽（16)後’蓋板、C形環（C)及環 (R)將凹槽（16)之開放端封閉，再將換向開關（12〇)固定於 控制件（100)。當然’換向開關（12〇)_控制件（1〇〇)是操作 性連接，故本案並不限於將控制件（1 〇〇)與換向開關（12〇) 設計成同一元件或不同元件。 【圖式簡單說明】 圖1是本案分解立體圖。 162734.doc • 8 · M434653 圖2是本案組合後之側視圖。 圖3是本案組後合之另一側視圖。 圖4A及圖4B為本案換向操作之作動示意圖。 圖5為本案換向操作之另一作動示意圖，其中控制件100 及換向開關去除以顯示内部結構。 圖6A顯示控制件停駐於中間而位於第三位置之示意圖。 圖6B顯示控制件右轉而位於第一位置之示意圖。 圖6C顯示控制件左轉而位於第二位置之示意圖。 圖6D顯示控制件背部之結構圖。 圖7顯示本案之局部剖視圖。 【主要元件符號說明】 10 本體 12 握柄 14 操作部 16 凹槽 18 底壁 20 内周壁 40 棘輪 42,62,82 齒 44 固定件 60 第一掣爪 64,84 侧面 66,86 端齒 68,88 固持件 162734.doc M434653 80 第二掣爪 100 控制件 101 螺栓 102 撥件 104 第一組孔 106 第二組孔 108 第三組孔 120 換向開關 B 鋼珠 C C形環 F 蓋.板 H1，H2 孔 R 環 S 彈簧 162734.doc - 10-Only the first pawl (60) is coupled to the ratchet (4〇), and the 1st position is 'but allowed' to allow the body (10) to provide transmission torque in the first rotational direction. . When the control member (1〇〇) is at the neutral position, that is, as shown in FIG. 6A (the control member (1〇〇) is in the middle), the second group of holes (106) are engaged with the steel ball (B), which The control member (1〇〇) is not coupled to the first pawl (60) and the second pawl (80) while allowing the body (1〇) to provide transmission in the first rotational direction and the second rotational direction Torque, so it shows an intermediate lock state. In a preferred embodiment of the present invention, the control member (丨〇〇) is from the first group of holes (104) to the second group of holes (106), or from the second group of holes (1〇6) to the third The preferred spacing between the sets of holes (108) is 2 degrees. When assembled, a fixing member (44) is used to pivotally fix the ratchet (4〇) to the operating portion, and when the components are fitted into the recess (16), the cover plate, the C-ring (C) and the ring (R) ) The open end of the recess (16) is closed, and the reversing switch (12〇) is fixed to the control member (100). Of course, the 'commutation switch (12〇)_ control unit (1〇〇) is an operative connection, so the case is not limited to designing the control unit (1 〇〇) and the reversing switch (12〇) as the same element or different components. . BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of the present invention. 162734.doc • 8 · M434653 Figure 2 is a side view of the combination of the case. Figure 3 is another side view of the rear of the case. 4A and 4B are schematic views showing the operation of the commutation operation of the present case. FIG. 5 is another schematic diagram of the operation of the commutation operation of the present case, in which the control member 100 and the commutation switch are removed to show the internal structure. Figure 6A shows a schematic view of the control member parked in the middle and in the third position. Figure 6B shows a schematic view of the control member turning to the right position. Figure 6C shows a schematic view of the control member turning left to be in the second position. Figure 6D shows a structural view of the back of the control member. Figure 7 shows a partial cross-sectional view of the present case. [Main component symbol description] 10 body 12 grip 14 operation portion 16 groove 18 bottom wall 20 inner peripheral wall 40 ratchet 42, 62, 82 tooth 44 fixing member 60 first claw 64, 84 side 66, 86 end tooth 68, 88 holder 162734.doc M434653 80 second paw 100 control member 101 bolt 102 dial 104 first set of holes 106 second set of holes 108 third set of holes 120 reversing switch B steel ball CC ring F cover. plate H1, H2 hole R ring S spring 162734.doc - 10-