CN101618532B - A wrench with a tooth difference between the two clamping ends of a single pawl - Google Patents

Abstract

The invention discloses a wrench with a single pawl and two clamping ends with tooth difference, which is mainly characterized in that a driving part is arranged in a driving part of the inner diameter of a driving head of a wrench tool, at least two containing grooves are arranged on the driving part, a pawl is arranged in the containing grooves in a pivot way, a reversing part is arranged between the containing grooves, the reversing part is provided with an elastic part and a jacking part relative to each pawl, the back surface of the pawl is supported by the jacking part, the pawl is provided with clamping ends relative to the inner diameter of the driving part of the driving head, the two clamping ends are not symmetrical and have tooth shapes relative to the driving part, the tooth shapes of the two clamping ends of each pawl have a bit difference smaller than the tooth distance of the inner diameter of the driving part, and the pawls in each containing groove can be arranged in a crossed way or arranged in a relative way to form a wrench structure shape of micro-angle driving and general-angle driving, and can be respectively arranged in each, achieving the above functions and being a low cost design.

Description

Translated fromChinese

单一掣子两卡制端具有齿差的扳手A wrench with a tooth difference between the two clamping ends of a single pawl

技术领域technical field

本发明涉及一种扳手，特别是一种单一掣子两卡制端具有齿差的扳手。The invention relates to a wrench, in particular to a wrench with a tooth difference between two clamping ends of a single pawl.

背景技术Background technique

已知手工具中的扳手结构，若以扳手驱动头内部的结构大致可分为换向与不可换向的结构，而其中，可换向的结构则可分为两种，一为换向装置与驱动头内径处的驱动件分离设置，一为换向装置与驱动头内径处的驱动件同为一体的设计，其中，换向装置与驱动头内的驱动件一体设置的结构，即可如图1及图2所示，其扳手10的驱动头11内径处设有齿形的驱动部110，而该驱动部110内径处设有一驱动件20，该驱动件20内另设有一换向装置30的换向件31，该驱动件20的两侧另以枢轴枢设有一掣子40，该掣子40的两端相对于驱动头11驱动部110齿形处设成具有相对齿形的卡制端41，其中，该各掣子40的卡制端41上的齿形系呈一对称的形态，且两卡制端41上齿形的齿距相同且两者并无任何位差，因此，于该驱动件20两侧处的掣子40卡制端41于动作过程中，两掣子40的卡制端41齿面同时卡制于驱动头11驱动部110上，如此同时卡制的结构形态，由于其卡制驱动的角度受限于驱动头11驱动部110上的齿形，一般目前最多为二十四齿，也就是，该驱动件20跳齿驱动的角度约在15度角，跳齿角度甚大，于狭小的空间内无法使用该扳手10，故有改良上的必要。The structure of the wrench in the known hand tool can be roughly divided into reversible and non-reversible structures based on the internal structure of the wrench drive head. Among them, the reversible structure can be divided into two types, one is the reversing device It is set separately from the drive part at the inner diameter of the drive head. One is the design that the reversing device and the drive part at the inner diameter of the drive head are integrated. As shown in Figures 1 and 2, a toothed drivingpart 110 is provided at the inner diameter of the drivinghead 11 of thewrench 10, and a drivingpart 20 is provided at the inner diameter of the drivingpart 110, and a reversing device is also provided in thedriving part 20. 30 of the reversingmember 31, the two sides of the drivingmember 20 are pivotally provided with apawl 40, and the two ends of thepawl 40 are set to have opposite teeth relative to the tooth shape of the drivingpart 110 of the drivinghead 11. The clampingend 41, wherein, the teeth on theclamping end 41 of eachpawl 40 are in a symmetrical form, and the tooth pitches of the teeth on the twoclamping ends 41 are the same and there is no difference between the two, Therefore, during the action of theclamping ends 41 of thelatches 40 at both sides of thedriver 20, the tooth surfaces of theclamping ends 41 of the twolatches 40 are simultaneously clamped on thedriving part 110 of thedriving head 11, so that they are simultaneously clamped. The structural form, because the angle of its clamping drive is limited by the tooth shape on thedriving part 110 of the drivinghead 11, generally at most twenty-four teeth at present, that is, the angle of the drivingpart 20 jumping tooth driving is about 15 degrees Angle, jump tooth angle is very big, can't use thiswrench 10 in narrow space, so there is the necessity on the improvement.

前述的扳手结构即如美国专利第6205891号案的结构一般，惟此扳手驱动件上的掣子于相对驱动部的周缘另形成一齿状的卡制端，而此一卡制端的设计使两掣子与卡制扳手驱动头的驱动部时系为一同时卡制的形态，因此会有前述已知结构的缺失，其跳齿卡制的角度过大，扳手柄部来回摆动的范围过大，必须有相当的空间方能使用，无法适用于狭小空间中的驱动作业。The aforementioned wrench structure is just like the structure of U.S. Patent No. 6,205,891, but the catch on the wrench driver forms a tooth-shaped clamping end on the periphery of the relative driving part, and the design of this clamping end makes the two The detent and the driving part of the clamping wrench drive head are in a simultaneous clamping form, so there will be the lack of the aforementioned known structure, the angle of the jumping teeth clamping is too large, and the range of the wrench handle swinging back and forth is too large , There must be a considerable space to use, and it cannot be applied to the driving operation in a small space.

另于中国台湾专利公告第404879号案，其系将两掣子设成不同时卡制的结构形态，惟此一结构形态的设计，系该两掣子的齿形设于如图2所示的对称形态，其掣子40两端的卡制端41设置的齿形呈相互对称的形态，惟同一驱动件20上两掣子40的卡制端41齿形呈不同的位差结构，以使一掣子的卡制端齿形卡入扳手驱动头的驱动部内，而另一掣子的卡制端则不与扳手驱动头的驱动部产生卡制，因此，该两掣子的齿形属不同的设计，虽达到不同卡制微角度摆动跳齿卡制的功能，而可运用于狭小空间中，惟两掣子的结构属不同的位差的齿形设计，如此造成两掣子必须分别制造成本相对提高，且当两掣子属不同的位差齿形设计时，扳手使用该两掣子时，仅能为微角度卡制的功能而已，即使用时永远以单一掣子的卡制端卡制于扳手驱动头的驱动部内，其卡制的力量有限，无法因应大扭力的需求，故有改良的必要。In addition, in the case of Taiwan Patent Announcement No. 404879, the two pawls are set in a structural form that is not locked at the same time, but the design of this structural form is that the tooth shapes of the two pawls are located as shown in Figure 2. Symmetrical form, the teeth of the clamping ends 41 at the two ends of thepawl 40 are symmetrical to each other, but the tooth shapes of theclamping ends 41 of the twopawls 40 on thesame driving member 20 have different position difference structures, so that The teeth of the clamping end of one pawl are locked into the drive part of the wrench drive head, while the clamping end of the other pawl is not clamped with the drive part of the wrench drive head. Therefore, the tooth shapes of the two pawls belong to Although different designs can achieve the function of micro-angle swinging and jumping teeth locking in different clamping systems, they can be used in narrow spaces, but the structures of the two pawls are tooth-shaped designs with different positions, so that the two pawls must be separated. The manufacturing cost is relatively high, and when the two pawls are designed with different differential tooth profiles, when the wrench uses the two pawls, it can only be clamped at a micro-angle, that is, the clamping end of a single pawl will always be used. It is clamped in the driving part of the wrench drive head, and its clamping force is limited, which cannot meet the demand of high torque, so there is a need for improvement.

发明内容Contents of the invention

本发明所要解决的技术问题为，针对现有技术的不足，提供一种达到微角度驱动且可降低成本，同时也可达到一般角度驱动且相对大扭力卡制需求的单一掣子两卡制端具有齿差的扳手。The technical problem to be solved by the present invention is, aiming at the deficiencies of the prior art, to provide a single detent with two clamping ends that can achieve micro-angle drive and reduce costs, and can also achieve general angle drive and relatively large torque clamping requirements. Wrench with differential teeth.

为解决上述技术问题，本发明所采用的技术方案为：一种单一掣子两卡制端具有齿差的扳手，其包括：一驱动头，该驱动头内径处形成一连续齿形的驱动部；一驱动件，设于该驱动部内，该驱动件外露出该驱动部形成一驱动端，该驱动件于该驱动部内的大径体端设有至少两容置槽；至少相对于容置槽数量的掣子，该掣子设于相对的容置槽内，且该掣子相对于该驱动头的驱动部的两端形成卡制端，两卡制端相对于该驱动部呈相对齿形的第一啮合部以及第二啮合部设置，该掣子两卡制端的第一啮合部与第二啮合部具有小于该驱动部一齿的位差；该各容置槽内的掣子以同一结构形态的掣子同向设置。In order to solve the above technical problems, the technical solution adopted by the present invention is: a wrench with a tooth difference between the two clamping ends of a single latch, which includes: a driving head, and a continuous tooth-shaped driving part is formed at the inner diameter of the driving head ; a driving part is arranged in the driving part, and the driving part exposes the driving part to form a driving end, and the large-diameter end of the driving part in the driving part is provided with at least two accommodating grooves; A number of detents, the detents are arranged in the opposite accommodating grooves, and the two ends of the detents relative to the drive part of the drive head form clamping ends, and the two clamping ends are opposite toothed relative to the drive part The first engaging portion and the second engaging portion are provided, and the first engaging portion and the second engaging portion at the two clamping ends of the pawl have a position difference less than one tooth of the driving portion; the pawls in each accommodation groove are in the same The detents of the structural form are arranged in the same direction.

一种单一掣子两卡制端具有齿差的扳手，其包括：一驱动头，该驱动头内径处形成一连续齿形的驱动部；一驱动件，设于该驱动部内，该驱动件外露出该驱动部形成一驱动端，该驱动件于该驱动部内的大径体端设有至少两容置槽；其特征在于：还包括至少相对于容置槽数量的掣子，该掣子设于相对的容置槽内，且该掣子相对于该驱动头的驱动部的两端形成卡制端，两卡制端相对于该驱动部呈相对齿形的第一啮合部以及第二啮合部设置，该掣子两卡制端的第一啮合部与第二啮合部具有小于该驱动部一齿的位差；该各容置槽内的掣子以同一结构形态的掣子反向设置。A wrench with a tooth difference between the two clamping ends of a single latch, which includes: a driving head, a continuous tooth-shaped driving part is formed at the inner diameter of the driving head; a driving part is arranged in the driving part, and the driving part The driving part is exposed to form a driving end, and the large-diameter end of the driving part is provided with at least two accommodating grooves; it is characterized in that it also includes at least a number of detents corresponding to the number of accommodating grooves, and the detents are provided with In the opposite accommodating groove, and the two ends of the driving part of the detent form the clamping end relative to the driving part, and the two clamping ends are the first meshing part and the second meshing part of the opposite tooth shape relative to the driving part. The position difference between the first meshing part and the second meshing part of the two clamping ends of the pawl is less than one tooth of the driving part; the pawls in the accommodating grooves are reversely arranged with the pawls of the same structural form.

与现有技术相比，本发明所具有的有益效果为：本发明藉由扳手驱动头内的驱动件上设有两相对的掣子，该两掣子各具有两卡制端，该掣子的两卡制端各形成齿形，且同一掣子内具有不对称齿形的卡制端，即同一掣子的两卡制端齿形系以小于驱动部齿形的一齿距的位差设计，而于设置两掣子时，即可于同一掣动件上的两掣子一为正向设置，另一为反向设置，使伸出掣动件卡向驱动部的卡制端的齿形具有位差，如此，即可使不同的掣子于不同的时间与驱动部卡制成为一微角度的驱动结构形态，而达到单一掣子结构，分别正反向设置于掣动件两侧，在同时达到微角度驱动且可降低成本的目的。Compared with the prior art, the present invention has the beneficial effects that: the present invention is provided with two relative detents on the driving member in the wrench driving head, and each of the two detents has two clamping ends, and the detents The two clamping ends of each form a tooth shape, and the same pawl has an asymmetric tooth-shaped clamping end, that is, the tooth shape of the two clamping ends of the same pawl is less than the pitch difference of the tooth shape of the driving part. design, and when setting two detents, one of the two detents on the same detent can be set in the forward direction and the other can be set in the opposite direction, so that the protruding detent is stuck to the teeth of the clamping end of the driving part. The shape has a position difference, so that different latches can be locked with the driving part at different times to form a micro-angle driving structure, so as to achieve a single latch structure, which is respectively set on both sides of the latch. , at the same time to achieve the purpose of micro-angle driving and cost reduction.

另外，本发明藉由扳手驱动头内的驱动件上的掣子，于单一掣子的两卡制端，设成具有位差的齿形，呈一不对称的结构形态，同一掣子的两卡制端齿形系以小于驱动部齿形的一齿距的位差设计者，而于设置两掣子时，即可于同一掣动件上的两掣子均为相对正向的设置，即伸出掣动件卡向驱动部的卡制端的齿形系为相同齿距位置的齿形，如此，即可使不同的掣子于同一时间与驱动部卡制成为一般角度的驱动结构形态，而达到因应大应力的需求，分别正向设置于掣动件两侧，在同时达到一般角度驱动且相对大扭力卡制的需求目的。In addition, according to the present invention, the detents on the driving parts in the wrench drive head are set at the two clamping ends of a single detent to have a tooth shape with a difference in position, which is an asymmetrical structural form. The two detents of the same detent The tooth shape of the locking end is designed with a pitch difference that is less than one pitch of the tooth shape of the driving part, and when two detents are installed, the two detents on the same detent can be set in a relatively positive direction. That is to say, the tooth profile of the clamping end of the protruding detent that is clamped to the drive part is the tooth profile with the same tooth pitch position, so that different detents can be clamped with the drive part at the same time to form a driving structure with a general angle , so as to meet the demand of large stress, respectively positively set on both sides of the detent, and at the same time achieve the purpose of general angle driving and relatively high torque clamping.

附图说明Description of drawings

图1系已知的剖面结构示意图。Fig. 1 is a schematic diagram of a known cross-sectional structure.

图2系已知的掣子俯视示意图。Fig. 2 is a schematic top view of a known latch.

图3系本发明的立体示意图。Fig. 3 is a three-dimensional schematic view of the present invention.

图4系本发明的俯视剖面结构示意图。Fig. 4 is a top view sectional structure schematic diagram of the present invention.

图5系本发明的掣子俯视平面示意图。Fig. 5 is a top plan view of the latch of the present invention.

图6系本发明的同一掣子结构形态两个不同于图4方向设置的俯视平面示意图。Fig. 6 is a top plan view of the same structure of the pawl according to the present invention, which is arranged in two different directions from Fig. 4 .

标号说明Label description

扳手10    驱动头11    驱动部110Wrench 10 drivinghead 11 drivingpart 110

驱动件20  驱动端21    容置槽22    枢轴23Drivingmember 20Driving end 21 Accommodatingslot 22Pivot 23

换向装置30Reversingdevice 30

换向件31  弹性件32    顶制件33Reversingpiece 31 Elastic piece 32Top piece 33

掣子40    卡制端41    第一啮合部410Detent 40 , lockingend 41 , firstengaging portion 410

第二啮合部411secondengaging portion 411

设置夹角θSet angle θ

具体实施方式Detailed ways

有关本发明为达成上述目的，所采用的技术、手段及其它的功效，兹举一较佳可行实施例并配合图式详细说明如后，相信本发明上述目的、特征及其它的优点，当可由之得一深入而具体的了解，惟本发明并非惟一的实施例，容此说明的。For the present invention to achieve the above-mentioned purpose, the technology, means and other effects adopted, hereby give a preferred feasible embodiment and cooperate with the drawings to describe in detail as follows. It is believed that the above-mentioned purpose of the present invention, features and other advantages can be obtained by In order to gain a deep and specific understanding, the present invention is not the only embodiment, so let it be explained here.

请参阅图3、4所示，该扳手10的头部为一驱动头11，而该驱动头11中空内径处具有等分连续齿形的驱动部110，于该驱动部110内径处设有一驱动件20，该驱动件20以C形扣或其它方式结合于驱动部110内，而该驱动件20外露出驱动部110的细径方柱形端部配合一钢珠形成一驱动端21，该驱动件20于驱动部110内的大径体端另设置有一换向作用的换向装置30，而该驱动件20大径体端两侧各设有一容置槽22，该容置槽22内以一枢轴23枢设有一掣子40，该换向装置30主要具有一换向件31，该换向件31中央穿入驱动件20，并于相对于掣子40处设有至少一弹性件32，并以该弹性件32端设置分别向各掣子40顶置的一子弹型的顶制件33，藉由前述换向件31的转动，以使带动顶制件33以不同的角度顶制各掣子40相对的端面，而使掣子40不同的端部伸出驱动件20的范围并与驱动部110卡制驱动；Please refer to Fig. 3, shown in 4, the head of thiswrench 10 is a drivinghead 11, and the hollow inner diameter of the drivinghead 11 has a drivingpart 110 with a continuous tooth shape in equal parts, and adriving part 110 is provided at the inner diameter of thedriving part 110.Part 20, thedriving part 20 is combined in thedriving part 110 with a C-shaped buckle or other methods, and the thin-diameter square column-shaped end of the drivingpart 110 exposed from the drivingpart 20 cooperates with a steel ball to form adriving end 21. The large-diameter body end of the drivingpart 110 of thepart 20 is provided with a reversingdevice 30 with a reversing effect, and the two sides of the large-diameter body end of the drivingpart 20 are respectively provided with anaccommodating groove 22, and in the accommodating groove 22 Apivot 23 is pivotally provided with apawl 40, thereversing device 30 mainly has a reversingmember 31, and the center of the reversingmember 31 penetrates thedriving member 20, and at least one elastic member is provided at the place opposite to thepawl 40 32, and a bullet-shaped ejector 33 is provided at the end of the elastic member 32 to eachpawl 40, and by the rotation of the aforementioned reversingmember 31, theejector 33 is driven to push at different angles. Control the opposite end faces of eachpawl 40, so that the different ends of thepawl 40 extend out of the range of thedriver 20 and are locked and driven with thedrive part 110;

而前述的掣子40中段处为枢轴23穿过，背面为前述换向装置30为弹性件32顶推的顶制件33所顶推，而掣子40相对于驱动头11驱动部110的两端系形成卡制端41，各卡制端41相对于驱动部110呈相对齿形的第一啮合部410以及第二啮合部411设置，而本发明的特征在于：Thepivot 23 passes through the middle section of theaforementioned catch 40 , and the back is pushed by theejector 33 pushed by the elastic member 32 for theaforementioned reversing device 30 , and thecatch 40 is pushed relative to thedriving part 110 of the drivinghead 11 . The two endsform clamping ends 41, and eachclamping end 41 is provided with the firstengaging portion 410 and the secondengaging portion 411 of relative tooth shape relative to thedriving portion 110, and the present invention is characterized in that:

该掣子40两卡制端41上齿形的第一啮合部410与第二啮合部411设计，系于单一掣子40的两卡制端41的第一啮合部410与第二啮合部411具有小于一齿的位差，若以本发明的图3至图4所示的实施状态配合图5所示而论，该掣子40由枢轴23中心向两侧延伸出夹角为θ的设置夹角θ，该设置夹角θ两侧的延伸线与卡制端41周缘相切处间为齿形的第一啮合部410与第二啮合部411设置的位置，且该第一啮合部410与第二啮合部411相互呈一不对称的形态，即该第一啮合部410的设置以齿尖开始于数齿后至由齿谷结束，而第二啮合部411则系非以齿尖开始，以本图例，第二啮合部411的开始以齿谷开始于数齿后至齿尖结束，使两卡制端41的第一啮合部410与第二啮合部411间相对具有小于一齿的齿差，如此当同一掣子40的结构于该两容置槽22内以不同的方向或相同方向设置，不但可达成掣子40制作成本可相对降低外，更可依不同的驱动扭力需求进行不同方向上的装配达到以符合实际上的需要。The tooth-shaped firstengaging portion 410 and the secondengaging portion 411 on the twoclamping ends 41 of thelatch 40 are designed to be tied to the firstengaging portion 410 and the secondengaging portion 411 of the twoclamping ends 41 of thesingle latch 40 With a position difference of less than one tooth, if the implementation state shown in Fig. 3 to Fig. 4 of the present invention is combined with that shown in Fig. 5, thepawl 40 extends from the center of thepivot 23 to both sides at an angle of θ. Set the included angle θ, the position where the extension line on both sides of the set included angle θ is tangent to the peripheral edge of theclamping end 41 is the position where the tooth-shaped firstengaging portion 410 and the secondengaging portion 411 are set, and the firstengaging portion 410 and thesecond meshing portion 411 are asymmetrical to each other, that is, thefirst meshing portion 410 is set from the tip of the tooth to the bottom of the tooth, while thesecond meshing portion 411 is not set at the tooth tip. At the beginning, with this illustration, the beginning of thesecond meshing portion 411 starts from the tooth trough and ends after a few teeth to the tooth tip, so that thefirst meshing portion 410 and the secondmeshing portion 411 of the twoclamping ends 41 have less than one tooth relative to each other. Tooth difference, so when the structure of thesame pawl 40 is arranged in different directions or in the same direction in the twoaccommodating grooves 22, not only can the production cost of thepawl 40 be relatively reduced, but also can be used according to different driving torque requirements Carry out assembly in different directions to meet actual needs.

当于驱动件20两侧容置槽22内设置掣子40时，系以使用者面对该容置槽22方向时，该两掣子40由两同一结构形态的掣子40予以不同向的设置，即使两掣子40同时为换向装置30的换向件31上的弹性件32顶推的顶制件33所推移伸出卡制端41的端面，其一掣子40为第一啮合部410伸出，另一掣子40则为第二啮合部411伸出与驱动部110卡制；如此，该驱动头11带动驱动件20动作后，若原来以一掣子40的第一啮合部410卡制驱动部110，而另一掣子40的第二啮合部411未与驱动部110卡制，而当驱动头11开始摆动回退，至约为驱动部110半齿的角度时，原第二啮合部411未与驱动部110卡制的掣子40，立即与驱动部110卡制呈可相互带动的形态，使驱动头11与驱动件20的卡制带动仅要回摆驱动部110的半齿角度即可，即成为一微角度带动的形态。When thedetents 40 are arranged in theaccommodating grooves 22 on both sides of thedriving member 20, when the user faces the direction of theaccommodating grooves 22, the twodetents 40 are positioned in different directions by twodetents 40 of the same structural form. Set, even if the twopawls 40 are pushed out by theejector 33 pushed by the elastic member 32 on the reversingmember 31 of thereversing device 30 at the same time, the end surface of theclamping end 41 is pushed out, and onepawl 40 is thefirst engagement part 410 stretches out, and theother pawl 40 stretches out for the secondengaging part 411 and blocks thedrive part 110; Thedriving part 410 is engaged with thedriving part 110, while the second engagingpart 411 of theother detent 40 is not engaged with thedriving part 110, and when the drivinghead 11 starts to swing back to an angle of about half a tooth of the drivingpart 110, The detent 40 that was not locked by the original secondengaging portion 411 with thedrive portion 110 is immediately locked with thedrive portion 110 in a form that can be driven with each other, so that thedrive head 11 and thedrive member 20 are locked and driven only by swinging the drive portion back. A half-tooth angle of 110 is enough, which becomes a form driven by a micro-angle.

而当驱动件20两容置槽22内的两掣子40呈如图6所示的设置方向时，系以使用者面对该容置槽22方向时，该两掣子40由两同一结构形态的掣子40予以同向的设置，即使两掣子40同时为换向装置30的换向件31上的弹性件32顶推的顶制件33所推移伸出卡制端41的端面，若其一掣子40为第一啮合部410伸出，另一掣子40则为第一啮合部410伸出与驱动部110卡制，若其一掣子40为第二啮合部411伸出则另一掣子40亦以第二啮合部411伸出与驱动部110卡制；如此，该两掣子40同时以相同位置的啮合部伸出与驱动部110卡制，其驱动头11摆动的角度必须为图4实施例的两倍，惟本图例的实施例可满足的扭力需求则为前一实施例的两倍，可因应大扭力的需求；其中，更由于本发明的驱动头11的驱动部110内径齿形完全不变，可直接承受较大的扭力，加上两掣子40卡制端41上齿形的不对称，而可达到整体结构上可以单一掣子40的结构，藉由反向或同一方向上的设置，而可进行微角度以及一般角度驱动扳手的结构设置，更可达到高扭力实施的目的。And when the two detents 40 in the twoaccommodating grooves 22 of thedriver 20 are in the setting direction as shown in Figure 6, when the user faces the direction of theaccommodating groove 22, the twodetents 40 are formed by two identical structures. Thepawls 40 of the shape are set in the same direction, even if the twopawls 40 are pushed out by thetop part 33 pushed by the elastic part 32 on thereversing part 31 of thereversing device 30 at the same time, the end surface of the clampingend 41 is pushed out, If one of thepawls 40 stretches out for the firstengaging portion 410, theother pawl 40 stretches out for the firstengaging portion 410 and engages with thedriving portion 110; if one of thepawls 40 stretches out for the secondengaging portion 411 Then theother pawl 40 is also stretched out with the secondengaging portion 411 and locked with thedriving portion 110; like this, the twopawls 40 are simultaneously stuck with thedriving portion 110 with the engaging portion at the same position, and the drivinghead 11 swings The angle must be twice that of the embodiment in Figure 4, but the torque requirement that can be met by the embodiment of this illustration is twice that of the previous embodiment, which can meet the requirements of large torque; wherein, more due to the drivinghead 11 of the present invention The tooth shape of the inner diameter of thedriving part 110 is completely unchanged, and can directly bear a large torque. In addition, the asymmetry of the tooth shape on the clampingend 41 of the twopawls 40 can achieve the structure of asingle pawl 40 in the overall structure. By setting in the opposite direction or in the same direction, the structural setting of micro-angle and general-angle driving wrench can be carried out, and the purpose of high torque implementation can be achieved.

故由前述的分析可知，本发明的掣子40两卡制端41的啮合部呈一不对称的结构形态，即两啮合部具有齿位差，即第一啮合部410与第二啮合部411的齿形相差小于驱动部110齿距，虽第一啮合部410与第二啮合部411的齿形与驱动部110相对设置，惟藉由第一啮合部410与第二啮合部411齿形具有位差，即可藉由同一掣子40的结构以两个同向或两个反向的设置设于驱动件20的两容置槽22内，而可达到整体扳手10结构可使用单一结构形态的掣子40即可达成微角度摆动驱动或大扭力输出的目的，对于微角度驱动的结构而言，属一低成本的设计，而对于一无需微角度驱动而需较大扭力输出的扳手10时，亦可藉由同一结构形态的两个掣子40予以如图6的方式设置，即可达到两个掣子40系同时以同一形态的啮合部伸出与驱动部110卡制带动，成为一大扭力驱动的结构形态。Therefore, it can be seen from the aforementioned analysis that the engaging portions of the two clamping ends 41 of thepawl 40 of the present invention have an asymmetrical structure, that is, the two engaging portions have a tooth position difference, that is, the first engagingportion 410 and the secondengaging portion 411 The tooth profile difference is less than thedrive portion 110 tooth pitch, although the tooth profile of the first engagingportion 410 and the secondengaging portion 411 are set opposite to thedrive portion 110, but the tooth profile of the first engagingportion 410 and the secondengaging portion 411 have Potential difference, that is, the structure of thesame detent 40 can be set in the twoaccommodating grooves 22 of the drivingmember 20 in two co-direction or two opposite directions, so that the structure of thewhole wrench 10 can use a single structural form Thedetent 40 can achieve the purpose of micro-angle swing drive or high torque output. For the structure of micro-angle drive, it is a low-cost design, and for awrench 10 that does not need micro-angle drive but needs larger torque output At the same time, the twopawls 40 of the same structural form can also be arranged as shown in Figure 6, so that the twopawls 40 can be extended and driven by the drivingpart 110 at the same time with the engagement part of the same form, becoming Structural shape driven by a large torque.

综上所述，本案发明所揭露单一掣子两卡制端具有齿差的扳手，特殊的设计已『具有产业的可利用性』应已毋庸置疑，除此之外，在本案发明所揭露出的技术特征，于申请之前并未曾见于诸刊物，亦未曾被公开使用，加之又具有如上所述功效增进的事实，是故，本发明的『新颖性』及『进步性』均符合专利法规定，爰依法提出发明专利的申请，祈请惠予审查并早日赐准专利，实感德便。In summary, the invention disclosed in this case has a wrench with a tooth difference between the two clamping ends of the single latch. The special design has "industrial applicability". The technical features of the invention have not been seen in any publications before the application, nor have they been publicly used. In addition, they have the fact that the effect is improved as described above. Therefore, the "novelty" and "advancement" of the present invention are in compliance with the provisions of the patent law. , Yuan filed an application for a patent for invention in accordance with the law, and prayed for the review and the grant of the patent as soon as possible.

Claims (10)

Translated fromChinese

1.一种单一掣子两卡制端具有齿差的扳手，其包括：一驱动头，该驱动头内径处形成一连续齿形的驱动部；一驱动件，设于该驱动部内，该驱动件外露出该驱动部形成一驱动端，该驱动件于该驱动部内的大径体端设有至少两容置槽；其特征在于：还包括至少相对于容置槽数量的掣子，该掣子设于相对的容置槽内，且该掣子相对于该驱动头的驱动部的两端形成卡制端，两卡制端相对于该驱动部呈相对齿形的第一啮合部以及第二啮合部设置，其中，该掣子两卡制端的第一啮合部与第二啮合部具有小于该驱动部一齿的位差；该各容置槽内的掣子以同一结构形态的掣子同向设置。1. A wrench with a tooth difference between two clamping ends of a single latch, comprising: a driving head, a driving part with a continuous tooth shape formed at the inner diameter of the driving head; a driving part, which is arranged in the driving part, and the driving part The driving part is exposed to form a driving end, and the large-diameter body end of the driving part is provided with at least two accommodating grooves; it is characterized in that it also includes at least a number of detents corresponding to the number of accommodating grooves, the detents The claws are arranged in the opposite accommodating grooves, and the two ends of the drive part of the catch form the clamping end relative to the driving part, and the two clamping ends are the first meshing part and the second tooth-shaped relative to the drive part. Two engaging parts are provided, wherein, the first engaging part and the second engaging part of the two clamping ends of the pawl have a position difference smaller than one tooth of the driving part; set in the same direction.2.根据权利要求1所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该驱动件于驱动部内的大径体端还设置有一换向作用的换向装置，该换向装置主要具有一换向件，该换向件中央穿入驱动件，并于相对于掣子处设有至少一弹性件，并以该弹性件端设置分别向各掣子顶置的一顶制件。2. The wrench with tooth difference between the two clamping ends of the single pawl according to claim 1, characterized in that, the large-diameter body end of the driving part in the driving part is also provided with a reversing device for reversing action, the reversing device The reversing device mainly has a reversing member, the center of the reversing member penetrates into the driving member, and at least one elastic member is provided at the position opposite to the pawl, and a top that is respectively pushed to each pawl is provided at the end of the elastic member. parts.3.根据权利要求1所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该容置槽内另设有一枢轴，该容置槽内的掣子中段处为该枢轴穿过，而该掣子相对于驱动头驱动部的卡制端分别设有第一啮合部以及第二啮合部，该掣子由枢轴中心向两侧延伸出设置夹角，该设置夹角两侧的延伸线与该掣子的卡制端周缘相切处之间为齿形的第一啮合部与第二啮合部设置的位置，且该第一啮合部与第二啮合部相互呈一不对称的形态，即该第一啮合部的设置以齿尖开始于数齿后至齿谷结束，而第二啮合部则非以齿尖的部位开始。3. The wrench with tooth difference between the two clamping ends of a single pawl according to claim 1, characterized in that, a pivot is provided in the accommodation groove, and the middle section of the pawl in the accommodation groove is the pivot. The shaft passes through, and the latch is respectively provided with a first engagement portion and a second engagement portion relative to the clamping end of the driving part of the drive head. The latch extends from the center of the pivot to both sides to set an included angle. Between the extension line on both sides of the angle and the tangent to the clamping end peripheral edge of the pawl is the position where the tooth-shaped first engaging part and the second engaging part are set, and the first engaging part and the second engaging part are in mutual shape. An asymmetric form, that is, the setting of the first meshing portion starts from the tip of the tooth and ends at the valley of the tooth, while the second meshing portion does not start at the position of the tooth tip.4.根据权利要求3所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该第二啮合部的设置以齿谷开始于数齿后至齿尖结束。4 . The wrench with a tooth difference between the two clamping ends of a single latch according to claim 3 , wherein the second engaging portion is arranged with a valley starting from a few teeth and ending at a tooth tip. 5 .5.根据权利要求1所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该驱动件两侧的容置槽内设置的掣子，其一容置槽内的掣子为第一啮合部伸出，则另一容置槽内的掣子则为第一啮合部伸出与驱动部卡制，若其一容置槽内的掣子为第二啮合部伸出则另一容置槽内的掣子以第二啮合部伸出与驱动部卡制。5. The wrench with tooth difference between the two clamping ends of a single pawl according to claim 1, characterized in that, the pawls arranged in the accommodation grooves on both sides of the drive member, one of the pawls in the accommodation groove If the first engagement part protrudes, the catch in the other accommodation groove is stuck by the first engagement part and the driving part. If the catch in one accommodation groove is the second engagement part protrudes, then The latch in the other accommodating groove protrudes from the second engaging portion and engages with the driving portion.6.一种单一掣子两卡制端具有齿差的扳手，其包括：一驱动头，该驱动头内径处形成一连续齿形的驱动部；一驱动件，设于该驱动部内，该驱动件外露出该驱动部形成一驱动端，该驱动件于该驱动部内的大径体端设有至少两容置槽；其特征在于：还包括至少相对于容置槽数量的掣子，该掣子设于相对的容置槽内，且该掣子相对于该驱动头的驱动部的两端形成卡制端，两卡制端相对于该驱动部呈相对齿形的第一啮合部以及第二啮合部设置，其中，该掣子两卡制端的第一啮合部与第二啮合部具有小于该驱动部一齿的位差；该各容置槽内的掣子以同一结构形态的掣子反向设置。6. A wrench with a tooth difference between the two clamping ends of a single latch, which includes: a driving head, a continuous tooth-shaped driving part is formed at the inner diameter of the driving head; a driving part is arranged in the driving part, and the driving part The driving part is exposed to form a driving end, and the large-diameter body end of the driving part is provided with at least two accommodating grooves; it is characterized in that it also includes at least a number of detents corresponding to the number of accommodating grooves, the detents The claws are arranged in the opposite accommodating grooves, and the two ends of the drive part of the catch form the clamping end relative to the driving part, and the two clamping ends are the first meshing part and the second tooth-shaped relative to the drive part. Two engaging parts are provided, wherein, the first engaging part and the second engaging part of the two clamping ends of the pawl have a position difference smaller than one tooth of the driving part; Reverse setting.7.根据权利要求6所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该驱动件于驱动部内的大径体端还设置有一换向作用的换向装置，该换向装置主要具有一换向件，该换向件中央穿入驱动件，并于相对于掣子处设有至少一弹性件，并以该弹性件端设置分别向各掣子顶置的一顶制件。7. The wrench with tooth difference between the two clamping ends of the single pawl according to claim 6, characterized in that, the large-diameter body end of the driving part in the driving part is also provided with a reversing device for reversing action, the reversing device The reversing device mainly has a reversing member, the center of the reversing member penetrates into the driving member, and at least one elastic member is provided at the position opposite to the pawl, and a top that is respectively pushed to each pawl is provided at the end of the elastic member. parts.8.根据权利要求6所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该容置槽内另设有一枢轴，该容置槽内的掣子中段处为该枢轴穿过，而该掣子相对于驱动头驱动部的卡制端分别设有第一啮合部以及第二啮合部，该掣子由枢轴中心向两侧延伸出设置夹角，该设置夹角两侧的延伸线与该掣子的卡制端周缘相切处之间为齿形的第一啮合部与第二啮合部设置的位置，且该第一啮合部与第二啮合部相互呈一不对称的形态，即该第一啮合部的设置以齿尖开始于数齿后至齿谷结束，而第二啮合部则非以齿尖的部位开始。8. The wrench with tooth difference between two clamping ends of a single pawl according to claim 6, characterized in that, a pivot is provided in the accommodation groove, and the middle section of the pawl in the accommodation groove is the pivot. The shaft passes through, and the latch is respectively provided with a first engagement portion and a second engagement portion relative to the clamping end of the driving part of the drive head. The latch extends from the center of the pivot to both sides to set an included angle. Between the extension line on both sides of the angle and the tangent to the clamping end peripheral edge of the pawl is the position where the tooth-shaped first engaging part and the second engaging part are set, and the first engaging part and the second engaging part are in mutual shape. An asymmetric form, that is, the setting of the first meshing portion starts from the tip of the tooth and ends at the valley of the tooth, while the second meshing portion does not start at the position of the tooth tip.9.根据权利要求8所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该第二啮合部的设置以齿谷开始于数齿后至齿尖结束。9 . The wrench with a tooth difference between the two clamping ends of a single latch according to claim 8 , wherein the second engaging portion is arranged with a valley starting from a few teeth and ending at a tooth tip. 10 .10.根据权利要求6所述的单一掣子两卡制端具有齿差的扳手，其特征在于，该驱动件两侧的容置槽内设置的掣子，其一容置槽内的掣子以第一啮合部伸出，另一容置槽的掣子则为第二啮合部伸出与驱动部卡制，成为一微角度带动的结构。10. The wrench with a tooth difference between the two clamping ends of a single pawl according to claim 6, characterized in that the pawls arranged in the accommodation grooves on both sides of the drive member, one of the pawls in the accommodation groove The first engaging part protrudes, and the catch of the other accommodating groove is protruded by the second engaging part and locked by the driving part, forming a micro-angle driven structure.

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