TWI806060B

TWI806060B - Ratchet tool with a double-head abutment type reversing brake device

Info

Publication number: TWI806060B
Application number: TW110120205A
Authority: TW
Inventors: 林琮淂
Original assignee: 林琮淂
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2023-06-21
Also published as: TW202247951A

Abstract

The present invention provides a ratchet tool with a double-head abutment type reversing brake device. The head end of the main body of the ratchet tool has a main accommodating part for a ratchet head, and one side of the main accommodating part is connected with a pair of accommodating parts, which is characterized in that the auxiliary accommodating part forms a two-stage guiding concave part, which includes a left and right guiding section and a middle convex part. A double-headed abutting reversing brake device, including a brake block, a rotation control member, a coil spring, a first offset push element and a second offset push element, wherein the second surface of the brake block forms the first bearing surface, the second bearing surface and the connecting section, and the coil spring is accommodated in the radial through hole of the rotation control member. The first and second pushing elements are respectively accommodated in the first and second openings of the radial through holes, and the first and second offset pushing elements are pushed by the two ends of the coil spring.

Description

具有雙頭抵頂式換向制動裝置之棘輪工具Ratchet tool with double-head abutment type reversing brake device

本發明係涉及一種棘輪工具；特別是指一種具有雙頭抵頂式換向制動裝置之創新棘輪工具結構型態揭示者。The present invention relates to a ratchet tool; in particular, it refers to the disclosure of the structure of an innovative ratchet tool with a double-head abutment type reversing braking device.

棘輪工具是一種利用棘輪機構達成單向逆止作動的棘輪工具，包括一本體、一握持部、一作用部及一制動單元，其中該本體形成有一容置孔以供設置該作用部及該制動單元，該作用部用於連接一工具驅動結構 (如套筒)，據使該作用部帶動該工具驅動結構旋轉，該制動單元包括一棘輪、一制動塊及一控制構件，該棘輪與該作用部軸接，該制動塊與該棘輪嚙合形成單向抵持，據此限制該棘輪及該作用部單向旋轉，該控制構件相對於該制動塊形成抵掣，操作該控制構件可以變換該制動塊對該棘輪的限位定止方向。The ratchet tool is a ratchet tool that utilizes a ratchet mechanism to achieve one-way backstop action. It includes a body, a grip portion, an action portion and a brake unit, wherein the body is formed with an accommodating hole for setting the action portion and the Braking unit, the acting part is used to connect a tool driving structure (such as a sleeve), so that the acting part drives the tool driving structure to rotate, the braking unit includes a ratchet, a brake block and a control member, the ratchet and the The action part is pivotally connected, and the brake block is engaged with the ratchet to form a one-way resistance, thereby restricting the one-way rotation of the ratchet and the action part, and the control member forms a resistance to the brake block. The limit and stop direction of the brake block to the ratchet.

惟查，習知棘輪工具於實際應用經驗中發現仍舊存在一些問題與缺弊，舉例而言：旋轉操作該控制構件以改變該控制構件抵掣該制動塊的位置，從而變換該制動塊對該棘輪的限位定止方向時，由於該控制構件與該制動塊的相對構成型態，使得該制動塊對該控制構件形成較大的抵抗作用與摩擦力，從而導致該控制構件的旋轉操作頗為不易，且經常會發生切換沒有確實到位的情況，從而影響棘輪工具的使用效能，精確的說，控制構件在切換沒有確實到位的情況下，將因為制動塊與棘輪兩者配合的棘齒未完全嚙合而造成容易崩齒。此外，習知棘輪工具的制動單元所設控制構件，其結構型態設計上，通常必須在棘輪工具的本體的容置孔一側孔壁鑽設一傾斜狀徑向深槽(可參閱台灣公告編號506308新型專利案之第5圖)，以供設置一撐持限位構件，例如一彈簧搭配一抵推元件或一頂桿的型態，然而此種型態在製造上，由於該徑向深槽的鑽設工序可實施性受限於該容置孔的孔徑，也就是說，對於某些小規格的棘輪工具而言，該徑向深槽有無法鑽設成型的問題存在，且此種撐持限位構件的型態，也相對增加了棘輪工具的組構件數量及組立工序、以及製造成本的提高，實有再加以簡化之必要性。However, the conventional ratchet tool finds that there are still some problems and disadvantages in the actual application experience, for example: rotating and operating the control member to change the position where the control member resists the brake block, thereby changing the position of the brake block against the brake block. When the direction of the ratchet is limited and fixed, due to the relative configuration of the control member and the brake block, the brake block forms a large resistance and friction force to the control member, thus causing the rotation operation of the control member to be difficult. Because it is not easy, and it often happens that the switch is not in place, which affects the use efficiency of the ratchet tool. To be precise, when the control member is not in place for the switch, it will be because the ratchets that cooperate with the brake block and the ratchet are not Teeth are prone to chipping due to complete meshing. In addition, the control member of the brake unit of the conventional ratchet tool usually has to be drilled with an oblique radial deep groove on the side wall of the housing hole of the body of the ratchet tool in terms of its structural design (refer to the Taiwan announcement No. 506308 No. 5 of Patent No. 506308) is used to set a support and limit member, such as a spring with a push element or a push rod. However, this type is manufactured due to the radial depth The practicability of the drilling process of the groove is limited by the diameter of the accommodating hole, that is to say, for some small-sized ratchet tools, the deep radial groove cannot be drilled into shape, and this kind of The shape of the supporting limiting member also relatively increases the number of components and the assembly process of the ratchet tool, and increases the manufacturing cost, so there is a need for further simplification.

是以，針對上述習知棘輪工具在該制動單元所存在之問題點，如何研發出一種能夠更具理想實用性之創新構造，實有待相關業界再加以思索突破之目標及方向者；有鑑於此，發明人本於多年從事相關產品之製造開發與設計經驗，針對上述之目標，詳加設計與審慎評估後，終得一確具實用性之本發明。Therefore, in view of the above-mentioned problems existing in the conventional ratchet tool in the braking unit, how to develop an innovative structure that can be more ideal and practical is really waiting for the relevant industry to think about the goal and direction of the breakthrough; in view of this , the inventor has been engaged in the manufacture, development and design of related products for many years. After detailed design and careful evaluation for the above-mentioned goals, he finally obtained a practical invention.

本發明之主要目的，係在提供一種棘輪工具之滾珠式換向制動構造，其所欲解決之技術問題，係針對如何研發出一種更具理想實用性之新式換向制動構造為目標加以思索創新突破。The main purpose of the present invention is to provide a ball-type reversing braking structure of a ratchet tool. The technical problem to be solved is how to develop a new type of reversing braking structure with more ideal and practical thinking and innovation. breakthrough.

基於前述目的，本發明解決問題之技術特點，主要在於所述棘輪工具係包括：一主體，包括一頭端及一握持部，頭端形成有主容置部；一棘輪頭，旋設於主容置部中呈可相對轉動狀態，棘輪頭一端面凸伸形成有驅動作用部，且棘輪頭側向外周形成有一環狀棘齒面，其中依據驅動作用部之凸伸軸向係定義出一軸向線，而主體之頭端則定義出與軸向線成正交關係之一徑向線，且主容置部具有對應軸向線且呈圓形之二軸向端口；一副容置部，鄰設於主容置部之一側呈內凹空間型態，副容置部具一內壁，該內壁一側形成徑向通道與該主容置部相連通，徑向通道朝向所述徑向線的延伸方向；一兩段式導動凹部，形成於副容置部之內壁，兩段式導動凹部沿著內壁延伸方向呈現朝徑向線延伸方向內凹之溝槽型態，且兩段式導動凹部包括有呈對稱分佈且彼此連接之一左側導動區段及一右側導動區段，左側導動區段與右側導動區段之間相對形成一中間凸部；一雙頭抵頂式換向制動裝置，包括一制動塊、一轉動控制件、一螺旋彈簧、一第一抵推元件及一第二抵推元件，其中制動塊設於主容置部中且位於棘輪頭的環狀棘齒面與轉動控制件之間，制動塊具有一第一面及一第二面，第一面與第二面呈彼此反向配置關係，第一面係面對棘輪頭，且第一面形成有一弧形齒排與環狀棘齒面相嚙合，第二面中間呈凹弧面狀而界定形成一第一承抵面、一第二承抵面及介於第一承抵面與第二承抵面之間的一銜接段；轉動控制件旋設於副容置部中，轉動控制件呈軸柱型態而界定形成一內端、一外端及介於內端與外端之間的一軸柱部位，其中外端形成有一扳動部顯露於組裝導入口外，軸柱部位形成一徑向貫穿孔，該徑向貫穿孔具有第一孔口及第二孔口，扳動部可由一使用者扳動而帶動轉動控制件的轉動方向，構成轉動控制件使用上具第一轉向位置及第二轉向位置；螺旋彈簧容設於徑向貫穿孔內，第一抵推元件容設於徑向貫穿孔內且部份凸出於第一孔口後抵靠於制動塊之第二面中間呈凹弧面狀部位，第二抵推元件容設於徑向貫穿孔內且部份凸出於第二孔口，並構成第一抵推元件與第二抵推元件被螺旋彈簧兩端常態彈性頂推的狀態；且當轉動控制件處於第一轉向位置時，係構成第一抵推元件抵靠於第一承抵面且第二抵推元件抵靠於左側導動區段的狀態，而當轉動控制件處於第二轉向位置時，則構成第一抵推元件抵靠於第二承抵面且第二抵推元件抵靠於右側導動區段的狀態。Based on the above-mentioned purpose, the technical characteristics of the present invention to solve the problem mainly lie in that the ratchet tool system includes: a main body, including a head end and a grip part, the head end is formed with a main accommodating part; a ratchet head is screwed on the main body The accommodating part is relatively rotatable. One end surface of the ratchet head protrudes to form a driving part, and a ring-shaped ratchet surface is formed on the outer periphery of the ratchet head. According to the protruding axial system of the driving part, a Axial line, and the head end of the main body defines a radial line that is orthogonal to the axial line, and the main accommodating part has two axial ports that correspond to the axial line and are circular; a pair of accommodating One side of the main accommodating part is in the form of a concave space. The auxiliary accommodating part has an inner wall. One side of the inner wall forms a radial channel to communicate with the main accommodating part. The radial channel faces The extension direction of the radial line: a two-stage guide recess formed on the inner wall of the auxiliary accommodation part, and the two-stage guide recess presents a concave groove in the direction of the radial line along the extension direction of the inner wall Groove type, and the two-stage guide recess includes a left guide section and a right guide section that are symmetrically distributed and connected to each other, and a left guide section and a right guide section are formed opposite each other. The middle convex part; a double-head abutting reversing brake device, including a brake block, a rotation control member, a coil spring, a first push element and a second push element, wherein the brake block is set in the main container Set in the part and between the ring-shaped ratchet surface of the ratchet head and the rotation control member, the brake block has a first surface and a second surface, the first surface and the second surface are arranged in a relationship opposite to each other, and the first surface It faces the ratchet head, and the first surface forms an arc-shaped tooth row to mesh with the annular ratchet surface, and the middle of the second surface is concave arc-shaped to define a first abutment surface, a second abutment surface and A connection section between the first abutment surface and the second abutment surface; the rotation control part is screwed in the auxiliary accommodation part, and the rotation control part is in the shape of a shaft and defines an inner end and an outer end and a shaft part between the inner end and the outer end, wherein the outer end forms a pulling part exposed outside the assembly inlet, the shaft part forms a radial through hole, and the radial through hole has a first hole and The second orifice, the wrenching part can be pulled by a user to drive the rotation direction of the rotation control part, forming the first turning position and the second turning position of the turning control part; the coil spring is accommodated in the radial through hole , the first resisting element is accommodated in the radial through hole and partially protrudes from the first hole and then leans against the middle of the second surface of the brake block in a concave arc shape, and the second resisting element is accommodated in radially through the hole and partly protrudes from the second orifice, and constitutes the state where the first resisting element and the second resisting element are pushed elastically by the two ends of the coil spring; and when the rotation control member is in the first direction position, it constitutes the state that the first resisting element abuts against the first abutting surface and the second resisting element abuts against the left guide section, and when the rotation control member is in the second steering position, it constitutes the state of the first resisting element. A state in which a pushing element leans against the second bearing surface and the second pushing element leans against the right guide section.

本發明之效果與優點主要包括：其一、換向制動裝置本身透過第二抵推元件搭配兩段式導動凹部形成的導動構造，其同時具備有沿軸向線方向的限位作用，無須再增設其他限位構件即可穩固限位轉動控制件有效防止其輕易脫出副容置部，且本體無需鑽設斜向深孔以置入定位用構件，結構更為精簡且組立相對更方便快速，從而具有降低製造成本的優點。其二、換向定位效果更加到位，因兩段式導動凹部包括左、右側導動區段與中間凸部構成的類似”W ”形的導動路徑，配合第一抵推元件與第二抵推元件被螺旋彈簧兩端常態彈性頂推的狀態與特徵，當使用者撥轉該轉動控制件進行轉向切換過程中，第二抵推元件會順暢滾動位移至左側導動區段或右側導動區段，而無滯留於中間凸部的可能性，使每次轉向切換的動作均能確實精準到位而特具實用進步性。 Effect and advantage of the present invention mainly comprise: First, the reversing braking device itself has a guiding structure formed by the second resisting element and the two-stage guiding recess, which also has a limiting function along the axial direction, without adding other limiting components. The stable limit rotation control part effectively prevents it from easily slipping out of the auxiliary accommodating part, and the body does not need to drill oblique deep holes to place positioning components. advantage. Second, the reversing positioning effect is more in place, because the two-stage guide concave part includes a "W"-shaped guide path formed by the left and right guide sections and the middle convex part, and cooperates with the first resisting element and the second The state and characteristics of the pushing element being pushed elastically by the two ends of the coil spring. When the user turns the rotary control part to switch the steering, the second pushing element will smoothly roll and move to the left guide section or the right guide section. There is no possibility of staying in the middle convex part, so that each steering switching action can be accurately in place, which is very practical and progressive.

圖1至圖10係例示本發明具有雙頭抵頂式換向制動裝置之棘輪工具之較佳實施例，惟此等實施例僅供說明之用，在專利申請上並不受此結構之限制。Figures 1 to 10 illustrate preferred embodiments of the ratchet tool with a double-headed reversing braking device of the present invention, but these embodiments are for illustration purposes only, and are not limited by this structure in patent applications .

該棘輪工具係包括下述構成：一主體10，包括一頭端11以及一握持部12 (註：圖面所繪為長形手柄型態)，其中該頭端11形成有一主容置部13；一棘輪頭20，旋設於該主容置部13中呈可相對轉動狀態，該棘輪頭20之一端面凸伸形成有一驅動作用部21 (如四角柱體)，且該棘輪頭20側向外周形成有一環狀棘齒面22，其中依據該驅動作用部21之凸伸軸向係定義出一軸向線L1，而該主體10之該頭端10則定義出與該軸向線L1成正交關係之一徑向線L2，且該主容置部13具有對應該軸向線L1且呈圓形之二軸向端口130；一副容置部30，鄰設於該主容置部13之一側呈內凹空間型態，該副容置部30具有一內壁31，該內壁31之一側形成一徑向通道32與該主容置部13相連通，其中該徑向通道32係朝向所述徑向線L2的延伸方向(亦即，後文所述雙頭抵頂式換向制動裝置50容置後呈現軸向封閉式型態)，該副容置部30內壁31為軸向圓形孔槽型態而具有對應該軸向線L1之一組裝導入口315，且該組裝導入口315與對應相鄰的軸向端口130之間界定形成有一間隔壁緣316；一兩段式導動凹部40，形成於該副容置部30之該內壁31，該兩段式導動凹部40係沿著該內壁31延伸方向呈現朝所述徑向線L2延伸方向內凹之溝槽型態，且該兩段式導動凹部40包括有呈對稱分佈且彼此連接之一左側導動區段41以及一右側導動區段42，該左側導動區段41與該右側導動區段42之間相對形成一中間凸部43；一雙頭抵頂式換向制動裝置50，包括一制動塊53、一轉動控制件54、一螺旋彈簧55、一第一抵推元件51 (可為鋼珠或塊體)及一第二抵推元件52 (採用鋼珠為較佳)，其中該制動塊53設於該主容置部13中且位於該棘輪頭20的該環狀棘齒面22與該轉動控制件54之間，該制動塊53具有一第一面531及一第二面532，該第一面531與該第二面532呈彼此反向配置關係，該第一面531係面對該棘輪頭20，且該第一面531形成有一弧形齒排533與該環狀棘齒面22相嚙合，該第二面532中間呈凹弧面狀而界定形成一第一承抵面534、一第二承抵面535以及介於該第一承抵面534與該第二承抵面535之間的一銜接段536；該轉動控制件54旋設於該副容置部30中，該轉動控制件54呈軸柱型態而界定形成一內端541、一外端542以及介於該內端541與該外端542之間的一軸柱部位543，其中該外端542形成有一扳動部544係顯露於該副容置部30之該組裝導入口315外，該軸柱部位543形成有一徑向貫穿孔545，該徑向貫穿孔545具有一第一孔口546及一第二孔口547，該扳動部544可由一使用者扳動從而帶動該轉動控制件54的轉動方向，構成該轉動控制件54使用上具有一第一轉向位置(如圖5及圖6所示狀態)以及一第二轉向位置(如圖7及圖8所示狀態)；該螺旋彈簧55容設於該徑向貫穿孔545內，該第一抵推元件51容設於該徑向貫穿孔545內且部份凸出於該第一孔口546後抵靠於該制動塊53之該第二面532中間呈凹弧面狀部位，該第二抵推元件52容設於該徑向貫穿孔545內且部份凸出於該第二孔口547並構成該第一抵推元件51與該第二抵推元件52被該螺旋彈簧55兩端常態彈性頂推的狀態；其中，當該轉動控制件54處於該第一轉向位置時如圖6所示，係構成該第一抵推元件51抵靠於該第一承抵面534且該第二抵推元件52抵靠於該左側導動區段41的狀態，而當該轉動控制件54處於該第二轉向位置時如圖8所示，則構成該第一抵推元件51抵靠於該第二承抵面535且該第二抵推元件52抵靠於該右側導動區段42的狀態。The ratchet tool system includes the following components: a main body 10, including a head end 11 and a grip portion 12 (note: the drawing is in the form of a long handle), wherein the head end 11 forms a main accommodating portion 13 A ratchet head 20 is screwed in the main accommodating portion 13 and is relatively rotatable. One end surface of the ratchet head 20 protrudes to form a driving action portion 21 (such as a square prism), and the side of the ratchet head 20 An annular ratchet surface 22 is formed on the outer periphery, wherein an axial line L1 is defined according to the protruding axial system of the driving action part 21, and the head end 10 of the main body 10 defines an axial line L1 A radial line L2 in an orthogonal relationship, and the main accommodating portion 13 has two circular axial ports 130 corresponding to the axial line L1; a secondary accommodating portion 30 is adjacent to the main accommodating portion One side of the part 13 is in the form of a concave space, the secondary accommodating part 30 has an inner wall 31, and one side of the inner wall 31 forms a radial channel 32 to communicate with the main accommodating part 13, wherein the diameter The channel 32 is directed toward the extension direction of the radial line L2 (that is, the double-headed butt-off type reversing brake device 50 described later is in an axially closed type after being accommodated), and the secondary accommodating portion 30 The inner wall 31 is in the shape of an axial circular hole and has an assembly inlet 315 corresponding to the axial line L1, and a partition wall is defined between the assembly inlet 315 and the corresponding adjacent axial port 130 316; a two-stage guide recess 40 formed on the inner wall 31 of the secondary accommodation portion 30, the two-stage guide recess 40 is along the extension direction of the inner wall 31 and presents toward the radial line L2 The groove type is concave in the extension direction, and the two-stage guide recess 40 includes a left guide section 41 and a right guide section 42 that are symmetrically distributed and connected to each other. Between 41 and the right side guide section 42, an intermediate protrusion 43 is formed oppositely; a double-headed abutment type reversing brake device 50 includes a brake block 53, a rotation control member 54, a coil spring 55, a first A push element 51 (can be a steel ball or a block) and a second push element 52 (it is better to use a steel ball), wherein the brake block 53 is arranged in the main accommodating portion 13 and is located at the ratchet head 20 Between the annular ratchet surface 22 and the rotation control member 54, the brake block 53 has a first surface 531 and a second surface 532, and the first surface 531 and the second surface 532 are arranged in opposite relationship to each other. , the first surface 531 is facing the ratchet head 20, and the first surface 531 is formed with an arc-shaped tooth row 533 meshing with the annular ratchet surface 22, and the middle of the second surface 532 is concave arc-shaped and Define and form a first abutment surface 534, a second abutment surface 535, and a connecting section 536 between the first abutment surface 534 and the second abutment surface 535; the rotation control member 54 is screwed In the auxiliary housing portion 30, the rotation control member 54 is in the shape of a shaft and defines an inner end 541, an outer end 542, and a shaft portion 543 between the inner end 541 and the outer end 542. , wherein the outer end 542 forms a pulling portion 544 that is exposed outside the assembly introduction port 315 of the secondary accommodating portion 30, and the shaft portion 543 forms a radial through hole 545, and the radial through hole 545 has a The first hole 546 and a second hole 547, the pulling part 544 can be pulled by a user to drive the rotation direction of the rotation control member 54, and the rotation control member 54 has a first turning position ( State shown in Figure 5 and Figure 6) and a second steering position (state shown in Figure 7 and Figure 8); the coil spring 55 is accommodated in the radial through hole 545, the first thrust element 51 Accommodated in the radial through hole 545 and partly protruded from the first hole 546, it abuts against the center of the second surface 532 of the brake block 53 in a concave arc shape. The second resisting element 52 is accommodated in the radial through hole 545 and partly protrudes from the second hole 547, and constitutes that the first resisting element 51 and the second resisting element 52 are normally elastically pushed by the two ends of the coil spring 55. push state; wherein, when the rotation control member 54 is in the first steering position as shown in FIG. The element 52 abuts against the state of the left guide section 41, and when the rotation control member 54 is in the second steering position as shown in FIG. 8, the first resisting element 51 abuts against the second The abutting surface 535 and the state where the second abutting element 52 abuts against the right side guide section 42 .

如圖4及圖6所示，本例中，該制動塊53之該第二面532中間凹弧面狀部位兩側相對界定形成一左側凸緣部537及一右側凸緣部538，該轉動控制件54之該軸柱部位543則對應配合形成有一左側避讓凹部548及一右側避讓凹部549；當該轉動控制件54處於該第一轉向位置時如圖6所示，係構成該左側凸緣部537對應進入該左側避讓凹部548範圍內的狀態，而當該轉動控制件54處於該第二轉向位置時如圖8所示，則構成該右側凸緣部538對應進入該右側避讓凹部549範圍內的狀態；又該制動塊53之該第二面532左右兩側還形成有對稱配置的一左側抵靠緣5321以及一右側抵靠緣5322；該主容置部13的左右兩側則對應形成有一左側承靠壁131以及一右側承靠壁132。As shown in Figure 4 and Figure 6, in this example, the two sides of the concave arc-shaped part in the middle of the second surface 532 of the brake block 53 are relatively defined to form a left flange part 537 and a right flange part 538. The shaft column portion 543 of the control member 54 is correspondingly formed with a left avoidance recess 548 and a right avoidance recess 549; part 537 correspondingly enters the state within the range of the left avoidance recess 548, and when the rotation control member 54 is in the second steering position as shown in FIG. and the left and right sides of the second surface 532 of the brake block 53 are also formed with a left abutting edge 5321 and a right abutting edge 5322 symmetrically arranged; the left and right sides of the main accommodating portion 13 correspond to A left abutting wall 131 and a right abutting wall 132 are formed.

如圖10所示，本例中，該兩段式導動凹部40對應該軸向線L1的延伸方向形成有一第一限位壁401及一第二限位壁402，用以供該第二抵推元件52的相對應側承靠，令該第二抵推元件52於該左側導動區段41、該右側導動區段42以及該中間凸部43往復滾動位移過程中，對應該軸向線L1的方向能夠獲得穩固限位作用其中。As shown in FIG. 10 , in this example, the two-stage guiding recess 40 is formed with a first limiting wall 401 and a second limiting wall 402 corresponding to the extending direction of the axial line L1 for the second The corresponding side of the thrust element 52 leans against, so that the second thrust element 52 corresponds to the axis during the reciprocating rolling displacement process of the left guide section 41 , the right guide section 42 and the middle protrusion 43 . In the direction of the line L1, a firm limit action can be obtained.

又其中，該兩段式導動凹部40與該第二抵推元件52之間的接觸配合型態，係為單點接觸式或多點接觸式(例如哥德式、U形或其它類似形狀者)任其中一種型態；此部份如圖11所揭，該兩段式導動凹部40的溝底與該第二抵推元件52之間實質上僅為單點接觸狀態(如P1所示)，這是因為第二抵推元件52常態受螺旋彈簧55所頂撐，所以會致使第二抵推元件52的抵靠作用點會恆常集中在其四分點與兩段式導動凹部40的溝底抵靠點部位；另如圖12所揭兩段式導動凹部40B係呈”ㄈ ”字形斷面形狀，因此其第一限位壁401B、第二限位壁402B及溝底共形成了多點接觸式的變化實施型態者。Wherein, the contact fit between the two-stage guide recess 40 and the second thrust element 52 is a single-point contact or a multi-point contact (such as Gothic, U-shaped or other similar shapes) or) any one of the types; this part is revealed in Figure 11, the groove bottom of the two-stage guide recess 40 and the second push member 52 are essentially only in a single-point contact state (as shown in P1 shown), this is because the second thrust element 52 is normally supported by the coil spring 55, so the abutment action point of the second thrust element 52 will always be concentrated on its quarter point and the two-stage guide The bottom of the groove of the recess 40 abuts against the point; in addition, as shown in Figure 12, the two-stage guide recess 40B is in the shape of a "ㄈ" cross-section, so the first limiting wall 401B, the second limiting wall 402B and the groove At the bottom, a total of multi-touch implementation patterns are formed.

如圖6所示，本例中，該左側導動區段41與該右側導動區段42為對稱配置且相連通的二弧形凹溝型態，又該左側導動區段41與該右側導動區段42之間相互交會所形成的山形部位則形成該中間凸部43。As shown in Figure 6, in this example, the left guide section 41 and the right guide section 42 are two arc-shaped concave grooves that are symmetrically arranged and communicated, and the left guide section 41 and the right guide section The mountain-shaped portion formed by the intersection of the right guide sections 42 forms the middle convex portion 43 .

如圖13所示，本例中，該左側導動區段41b與該右側導動區段42b為對稱間隔配置的二凹槽型態，又該左側導動區段41b與該右側導動區段42b之間相互間隔所形成的平坦壁面部位則形成該中間凸部43b。另如圖14所示之左側導動區段41 c、右側導動區段42 c及中間凸部43c，則為另一變化實施例型態。As shown in Figure 13, in this example, the left guide section 41b and the right guide section 42b are in the form of two grooves symmetrically spaced apart, and the left guide section 41b and the right guide section The flat wall portions formed by the intervals between the segments 42b form the intermediate convex portion 43b. In addition, the left guide section 41c, the right guide section 42c and the middle convex part 43c as shown in Fig. 14 are another variant embodiment.

如圖6所示，本例中，該兩段式導動凹部40呈相對遠離的二端係各別延伸連通至該左側承靠壁131與該右側承靠壁132。As shown in FIG. 6 , in this example, two ends of the two-stage guiding recess 40 that are relatively far away from each other respectively extend and communicate with the left abutting wall 131 and the right abutting wall 132 .

藉由上述結構組成型態與技術特徵，本發明所揭棘輪工具實際使用上首先如圖6所示，當轉動控制件54處於第一轉向位置時，係構成第一抵推元件51抵靠於第一承抵面534，且第二抵推元件52抵靠於左側導動區段41的狀態，此狀態下，因為制動塊53於圖中的右側呈現被夾緊狀態，構成棘輪頭20僅能朝順時針單向轉動模式；而欲進行驅動轉向的切換時，如圖7所示，吾人僅須將該轉動控制件54撥轉至第二轉向位置，此時就會切換成第一抵推元件51抵靠於該第二承抵面535，且第二抵推元件52抵靠於該右側導動區段42的狀態；而本發明之結構組成型態與技術特徵，其功效及優點主要包括：換向制動裝置本身透過第二抵推元件52搭配兩段式導動凹部40所形成的導動構造，其同時具備有沿軸向線L1方向的限位作用如圖10所示，無須再增設其他限位構件即可穩固限位轉動控制件54，有效防止轉動控制件54輕易脫出副容置部30，且本體亦無需鑽設斜向深孔以置入定位用構件，因此結構更為精簡並且組立相對更加方便快速，從而達成降低製造成本的優點；再者，本發明的換向定位效果相當到位，這是因為該兩段式導動凹部40包括左側導動區段41、右側導動區段42與中間凸部43所構成的類似”W ”形的導動路徑，配合該第一抵推元件51與第二抵推元件52被螺旋彈簧55兩端常態彈性頂推的狀態，所以當使用者撥轉該轉動控制件54進行轉向位置的切換過程中，第二抵推元件52會順暢地滾動位移至左側導動區段41或是右側導動區段42，而無滯留於中間凸部43的可能性，如此一來，使得每次轉向切換的動作均能確實精準到位，有效避免習知換向動作不確實而影響換向定位效果的問題；此外，切換構件作動具有低摩擦特性同時也能減輕退齒的抗力。With the above-mentioned structural composition and technical features, the ratchet tool disclosed in the present invention is firstly used in practice as shown in FIG. The first abutting surface 534 and the second abutting element 52 abut against the left side guide section 41. In this state, because the brake block 53 is clamped on the right side of the figure, the ratchet head 20 only It can turn clockwise in one direction; and when it is desired to switch the driving steering, as shown in Figure 7, we only need to turn the rotation control part 54 to the second steering position, and then it will switch to the first resistance. Pushing element 51 leans against the second bearing surface 535, and the second pushing element 52 leans against the state of the right side guide section 42; and the structural composition and technical features of the present invention, its functions and advantages It mainly includes: the guide structure formed by the reversing brake device itself through the second resisting element 52 and the two-stage guide recess 40, which also has a limiting function along the direction of the axial line L1, as shown in Figure 10. There is no need to add other limiting components to stabilize the limit rotation control part 54, effectively preventing the rotation control part 54 from easily slipping out of the secondary accommodating part 30, and the body does not need to drill oblique deep holes to insert positioning components, so The structure is simpler and the assembly is relatively more convenient and fast, thereby achieving the advantage of reducing manufacturing costs; moreover, the reversing positioning effect of the present invention is quite in place, because the two-stage guide recess 40 includes a left guide section 41 1. The guide path similar to the "W" shape formed by the right guide section 42 and the middle convex part 43 cooperates with the first push element 51 and the second push element 52 to be pushed elastically by the two ends of the coil spring 55 normally state, so when the user dials the rotary control member 54 to switch the steering position, the second resisting element 52 will smoothly roll and displace to the left guide section 41 or the right guide section 42, and There is no possibility of staying in the middle convex portion 43. In this way, each steering switching action can be accurately in place, effectively avoiding the problem that the conventional steering movement is not accurate and affects the switching positioning effect; in addition, the switching member The actuation has low friction characteristics and can also reduce the resistance of the back teeth.

10:主體 11:頭端 12:握持部 13:主容置部 130:軸向端口 131:左側承靠壁 132:右側承靠壁 20:棘輪頭 21:驅動作用部 22:環狀棘齒面 L1:軸向線 L2:徑向線 30:副容置部 31:內壁 315:組裝導入口 316:間隔壁緣 32:徑向通道 40、40B:兩段式導動凹部 401、401B:第一限位壁 402、402B:第二限位壁 41、41b、41c:左側導動區段 42、42b、42c:右側導動區段 43、43b、43c:中間凸部 50:雙頭抵頂式換向制動裝置 51:第一抵推元件 52:第二抵推元件 53:制動塊 531:第一面 532:第二面 5321:左側抵靠緣 5322:右側抵靠緣 533:弧形齒排 534:第一承抵面 535:第二承抵面 536:銜接段 537:左側凸緣部 538:右側凸緣部 54:轉動控制件 541:內端 542:外端 543:軸柱部位 544:扳動部 545:徑向貫穿孔 546:第一孔口 547:第二孔口 548:左側避讓凹部 549:右側避讓凹部 55:螺旋彈簧 10: Subject 11: Head end 12: Grip 13: Main container 130: axial port 131: The left side rests against the wall 132: The right side bears against the wall 20: ratchet head 21: Driving action department 22: Ring ratchet surface L1: axial line L2: radial line 30:Auxiliary container 31: inner wall 315: Assembly import port 316: Partition wall edge 32: radial channel 40, 40B: two-stage guide recess 401, 401B: the first limiting wall 402, 402B: the second limiting wall 41, 41b, 41c: left guide section 42, 42b, 42c: right guide section 43, 43b, 43c: middle convex part 50:Double-head push-up type reversing brake device 51: The first thrust element 52: The second pushing element 53: brake block 531: first side 532: second side 5321:Left against edge 5322: Right side against edge 533: Arc gear row 534: The first bearing surface 535: The second bearing surface 536: Coupling section 537: left flange 538:Right side flange 54: Turn the control part 541: inner end 542: outer end 543: Shaft part 544: Pulling Department 545: radial through hole 546: First orifice 547: Second orifice 548:Left avoidance recess 549: Right avoidance recess 55: coil spring

圖1為本發明棘輪工具較佳實施例之立體外觀圖。圖2為本發明較佳實施例之主體頭端內部結構立體透視圖。圖3為本發明較佳實施例之部份構件分解立體圖一。圖4為本發明較佳實施例之部份構件分解立體圖二。圖5為本發明較佳實施例之轉動控制件處於第一轉向位置之外部狀態平面圖。圖6為對應圖5狀態之內部結構沿徑向線之剖視圖。圖7為本發明較佳實施例之轉動控制件處於第二轉向位置之外部狀態平面圖。圖8為對應圖7狀態之內部結構沿徑向線之剖視圖。圖9為本發明較佳實施例之主體頭端之其中一端面視圖。圖10為圖9之10-10剖面圖。圖11為圖10之第二抵推元件配置部位放大圖。圖12為本發明之第一、第二限位壁與第二抵推元件之間接觸型態之變化實施例。圖13為本發明之兩段式導動凹部型態之另一變化實施例圖。圖14為本發明之兩段式導動凹部型態之又一變化實施例圖。 Fig. 1 is a three-dimensional appearance view of a preferred embodiment of the ratchet tool of the present invention. Fig. 2 is a three-dimensional perspective view of the internal structure of the head end of the main body in a preferred embodiment of the present invention. Fig. 3 is an exploded perspective view 1 of some components of a preferred embodiment of the present invention. Fig. 4 is an exploded perspective view 2 of some components of a preferred embodiment of the present invention. Fig. 5 is the external shape of the rotary control member in the first steering position according to the preferred embodiment of the present invention state floor plan. Fig. 6 is a sectional view along the radial line of the internal structure corresponding to the state of Fig. 5 . Fig. 7 is the external shape of the rotary control member in the second steering position according to the preferred embodiment of the present invention state floor plan. Fig. 8 is a sectional view along the radial line of the internal structure corresponding to the state of Fig. 7 . Fig. 9 is one end view of the head end of the main body of the preferred embodiment of the present invention. Fig. 10 is a sectional view of 10-10 in Fig. 9 . Fig. 11 is an enlarged view of the disposition of the second thrust element in Fig. 10 . Figure 12 shows the contact pattern between the first and second limiting walls and the second pushing element of the present invention Example of variation. Fig. 13 is a diagram of another variation embodiment of the two-stage guide concave portion of the present invention. Fig. 14 is a diagram of yet another variation embodiment of the two-stage guide concave portion of the present invention.

11:頭端 11: Head end

13:主容置部 13: Main container

131:左側承靠壁 131: The left side rests against the wall

132:右側承靠壁 132: The right side bears against the wall

20:棘輪頭 20: ratchet head

22:環狀棘齒面 22: Ring ratchet surface

30:副容置部 30:Auxiliary container

31:內壁 31: inner wall

32:徑向通道 32: radial channel

40:兩段式導動凹部 40: Two-stage guide recess

41:左側導動區段 41:Left guide section

42:右側導動區段 42: Right guide section

43:中間凸部 43: Middle convex part

51:第一抵推元件 51: The first thrust element

52:第二抵推元件 52: The second pushing element

53:制動塊 53: brake block

531:第一面 531: first side

532:第二面 532: second side

5321:左側抵靠緣 5321:Left against edge

5322:右側抵靠緣 5322: Right side against edge

533:弧形齒排 533: Arc gear row

534:第一承抵面 534: The first bearing surface

535:第二承抵面 535: The second bearing surface

536:銜接段 536: Coupling section

537:左側凸緣部 537: left flange

538:右側凸緣部 538:Right side flange

54:轉動控制件 54: Turn the control part

545:徑向貫穿孔 545: radial through hole

547:第二孔口 547: Second orifice

548:左側避讓凹部 548:Left avoidance recess

549:右側避讓凹部 549: Right avoidance recess

55:螺旋彈簧 55: coil spring

Claims

一種具有雙頭抵頂式換向制動裝置之棘輪工具，該棘輪工具包括：一主體，包括一頭端以及一握持部，其中該頭端形成有一主容置部；一棘輪頭，旋設於該主容置部中呈可相對轉動狀態，該棘輪頭之一端面凸伸形成有一驅動作用部，且該棘輪頭側向外周形成有一環狀棘齒面，其中依據該驅動作用部之凸伸軸向係定義出一軸向線，而該主體之該頭端則定義出與該軸向線成正交關係之一徑向線，且該主容置部具有對應該軸向線且呈圓形之二軸向端口；一副容置部，鄰設於該主容置部之一側呈內凹空間型態，該副容置部具有一內壁，該內壁之一側形成一徑向通道與該主容置部相連通，其中該徑向通道係朝向所述徑向線的延伸方向，該副容置部內壁為軸向圓形孔槽型態而具有對應該軸向線之一組裝導入口，且該組裝導入口與對應相鄰的軸向端口之間界定形成有一間隔壁緣；一兩段式導動凹部，形成於該副容置部之該內壁，該兩段式導動凹部係沿著該內壁延伸方向分佈且呈現朝所述徑向線延伸方向內凹之型態，該兩段式導動凹部包括有呈對稱分佈之一左側導動區段以及一右側導動區段，該左側導動區段與該右側導動區段之間相對形成用以區分該左側導動區段與該右側導動區段之一中間凸部；一雙頭抵頂式換向制動裝置，包括一制動塊、一轉動控制件、一螺旋彈簧、一第一抵推元件及一第二抵推元件，其中：該制動塊設於該主容置部中且位於該棘輪頭的該環狀棘齒面與該轉動控制件之間，該制動塊具有一第一面及一第二面，該第一面與該第二面呈彼此反向配置關係，該第一面係面對該棘輪頭，且該第一面形成有一弧形齒排與該環狀棘齒面相嚙合，該第二面中間呈凹弧面狀而界定形成一第一承抵面、一第二承抵面以及介於該第一承抵面與該第二承抵面之間的一銜接段；該轉動控制件旋設於該副容置部中，該轉動控制件呈軸柱型態而界定形成一內端、一外端以及介於該內端與該外端之間的一軸柱部位，其中該外端形成有一扳動部係顯露於該副容置部之該組裝導入口外，該軸柱部位形成有一徑向貫穿孔，該徑向貫穿孔具有一第一孔口及一第二孔口，該扳動部可由一使用者扳動從而帶動該轉動控制件的轉動方向，構成該轉動控制件使用上具有一第一轉向位置以及一第二轉向位置；以及該螺旋彈簧容設於該徑向貫穿孔內，該第一抵推元件容設於該徑向貫穿孔內且部份凸出於該第一孔口後抵靠於該制動塊之該第二面中間呈凹弧面狀部位，該第二抵推元件容設於該徑向貫穿孔內且部份凸出於該第二孔口，並構成該第一抵推元件與該第二抵推元件被該螺旋彈簧兩端常態彈性頂推的狀態；且其中，當該轉動控制件處於該第一轉向位置時，係構成該第一抵推元件抵靠於該第一承抵面且該第二抵推元件抵靠於該左側導動區段的狀態，而當該轉動控制件處於該第二轉向位置時，則構成該第一抵推元件抵靠於該第二承抵面且該第二抵推元件抵靠於該右側導動區段的狀態；且其中該兩段式導動凹部對應該軸向線的延伸方向係更形成有一第一限位壁以及一第二限位壁以供該第二抵推元件的相對應側承靠，令該第二抵推元件於該左側導動區段、該右側導動區段以及該中間凸部往復滾動位移過程中，對應該軸向線的方向能夠獲得穩固限位作用；又其中，該兩段式導動凹部與該第二抵推元件之間的接觸配合型態，係為單點或多點接觸式任其中一種型態。 A ratchet tool with a double-head abutment type reversing braking device, the ratchet tool includes: a main body, including a head end and a gripping part, wherein the head end forms a main accommodating part; a ratchet head, screwed on The main accommodating part is relatively rotatable. One end surface of the ratchet head protrudes to form a driving part, and a ring-shaped ratchet surface is formed on the outer periphery of the ratchet head. According to the protrusion of the driving part The axial direction defines an axial line, and the head end of the main body defines a radial line that is orthogonal to the axial line, and the main accommodating portion has a circular shape corresponding to the axial line. Two axial ports in the shape; a secondary accommodating part, which is adjacent to one side of the main accommodating part in the form of a concave space, the secondary accommodating part has an inner wall, and one side of the inner wall forms a diameter The channel communicates with the main accommodating part, wherein the radial channel is directed toward the extension direction of the radial line, and the inner wall of the secondary accommodating part is in the shape of an axial circular hole with a corresponding to the axial line. An assembly introduction port, and a partition wall edge is defined between the assembly introduction port and the corresponding adjacent axial port; a two-stage guide recess is formed on the inner wall of the auxiliary accommodating part, and the two sections The two-stage guide recess is distributed along the extension direction of the inner wall and presents a concave shape toward the extension direction of the radial line. The two-stage guide recess includes a symmetrically distributed left guide section and a The right side guide section, an intermediate convex part is formed opposite the left side guide section and the right side guide section to distinguish the left side guide section and the right side guide section; A type reversing brake device, including a brake block, a rotation control member, a coil spring, a first resisting element and a second resisting element, wherein: the brake block is arranged in the main accommodating part and located in the Between the annular ratchet surface of the ratchet head and the rotation control member, the brake block has a first surface and a second surface, and the first surface The second surface is arranged opposite to each other, the first surface is facing the ratchet head, and an arc-shaped tooth row is formed on the first surface to engage with the annular ratchet surface, and the middle of the second surface is concave. Arc-shaped and defined to form a first abutment surface, a second abutment surface and a joint section between the first abutment surface and the second abutment surface; the rotation control member is screwed on the In the auxiliary housing part, the rotation control member is in the form of a shaft and defines an inner end, an outer end and a shaft position between the inner end and the outer end, wherein the outer end forms a pull The part is exposed outside the assembly introduction port of the auxiliary accommodation part, and the shaft column part is formed with a radial through hole. The radial through hole has a first hole and a second hole. The pulling part can be controlled by a The user pulls to drive the rotation direction of the rotation control member, which constitutes that the rotation control member has a first turning position and a second turning position in use; and the coil spring is accommodated in the radial through hole, and the second turning position A thrusting element is accommodated in the radial through hole and partially protrudes from the first opening and leans against the center of the second surface of the brake block in a concave arc shape. The second thrusting element It is accommodated in the radial through hole and partially protrudes from the second opening, and constitutes a state where the first resisting element and the second resisting element are normally elastically pushed by both ends of the coil spring; and Wherein, when the rotation control member is in the first steering position, it constitutes a state where the first resisting element abuts against the first abutting surface and the second resisting element abuts against the left side guide section , and when the rotary control member is in the second steering position, the first resisting element abuts against the second abutting surface and the second abutting element abuts against the right guide section. ; and wherein the two-stage guide recess corresponds to the extending direction of the axial line and is further formed with a first limiting wall and a second limiting wall for the corresponding side of the second resisting element to bear against, so that During the reciprocating rolling displacement process of the left guide section, the right guide section and the middle convex part, the second resisting element can obtain a firm limit in the direction corresponding to the axial line function; and wherein, the contact fit between the two-stage guide recess and the second resisting element is any one of single-point or multi-point contact.

如請求項1所述之具有雙頭抵頂式換向制動裝置之棘輪工具，其中該制動塊之該第二面中間凹弧面狀部位兩側相對界定形成一左側凸緣部及一右側凸緣部，該轉動控制件之該軸柱部位則對應配合形成有一左側避讓凹部及一右側避讓凹部；當該轉動控制件處於該第一轉向位置時，係構成該左側凸緣部對應進入該左側避讓凹部範圍內的狀態，而當該轉動控制件處於該第二轉向位置時，則構成該右側凸緣部對應進入該右側避讓凹部範圍內的狀態；又該制動塊之該第二面左右兩側還形成有對稱配置的一左側抵靠緣以及一右側抵靠緣；該主容置部的左右兩側則對應形成有一左側承靠壁以及一右側承靠壁。 The ratchet tool with a double-head abutment type reversing brake device as described in claim 1, wherein the two sides of the concave arc-shaped part in the middle of the second surface of the brake block are relatively defined to form a left flange and a right convex The shaft part of the rotary control member is correspondingly formed with a left avoidance recess and a right avoidance recess; when the rotary control member is in the first steering position, it is formed that the left flange part enters the left side correspondingly. The state within the range of the avoidance recess, and when the rotation control member is in the second steering position, constitutes the state that the right side flange portion correspondingly enters the range of the right side avoidance recess; and the left and right sides of the second surface of the brake block A left abutting edge and a right abutting edge are formed symmetrically on the side; a left abutting wall and a right abutting wall are correspondingly formed on the left and right sides of the main accommodating portion.

如請求項1所述之具有雙頭抵頂式換向制動裝置之棘輪工具，其中該左側導動區段與該右側導動區段為對稱配置且相連通的二弧形凹溝型態，又該左側導動區段與該右側導動區段之間相互交會所形成的山形部位則形成該中間凸部。 The ratchet tool with a double-head abutment type reversing brake device as described in claim 1, wherein the left guide section and the right guide section are symmetrically arranged and connected in the form of two arc-shaped grooves, In addition, the mountain-shaped part formed by the intersection between the left guide section and the right guide section forms the middle convex part.

如請求項1所述之具有雙頭抵頂式換向制動裝置之棘輪工具，其中該左側導動區段與該右側導動區段為對稱間隔配置的二凹槽型態，又該左側導動區段與該右側導動區段之間相互間隔所形成的平坦壁面部位則形成該中間凸部。 The ratchet tool with a double-head abutment type reversing brake device as described in claim 1, wherein the left guide section and the right guide section are in the form of two grooves arranged at symmetrical intervals, and the left guide section The flat wall part formed by the distance between the moving section and the right side guiding section forms the middle convex part.

如請求項3或4任其中一項所述之具有雙頭抵頂式換向制動裝置之棘輪工具，其中該兩段式導動凹部呈相對遠離的二端係各別延伸連通至該左側承靠壁與該右側承靠壁。 The ratchet tool with a double-headed push-off type reversing brake device as described in any one of claim 3 or 4, wherein the two-stage guide recesses have two ends that are relatively far away from each other and are respectively extended and communicated with the left bearing lean against the wall and the right side against the wall.