TWM449672U - Torque screwdriver - Google Patents
Torque screwdriver Download PDFInfo
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- TWM449672U TWM449672U TW101218380U TW101218380U TWM449672U TW M449672 U TWM449672 U TW M449672U TW 101218380 U TW101218380 U TW 101218380U TW 101218380 U TW101218380 U TW 101218380U TW M449672 U TWM449672 U TW M449672U
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Description
本創作係與手工具有關，更詳而言之，係指一種在螺鎖時，可完整傳達扭力之扭力起子。This creation is related to hand tools, and more specifically, to a torque driver that fully conveys torque when the screw is locked.
按，習知螺絲起子係跨越好幾世代依舊是技師們手中不可或缺的手工具之一，因使用範圍極為廣泛，是家庭及工廠中最常見之必備工具，加上國內手工具發展係相當成熟穩定，不論其產品種類或結構品質，更是走在時代尖端，近年來為使使用者在實用上更加便利，各種易於操作且人性化功能的手工具相繼問市；然而，按，傳統螺絲起子設計即握柄結合驅動桿，驅動桿之延伸端組則形成一字或十字之型態，當使用者使用該傳統螺絲起子螺鎖於對應材質較軟性之板面，如木質或塑膠板面等，常因所施之力道過大，造成不可預期之破壞情況發生，故欲使起子具有扭力設定之能力，極須在有限空間上來完成此功能，且在結構設計上，要能符合經濟效益，更須考慮操作之簡便容易性，綜觀上述之要件，一直以來皆屬於起子構造設計上極待解決的困難與討戰。According to the conventional screwdrivers, it is still one of the indispensable hand tools in the hands of technicians. It is the most common necessary tool in the family and factory, and the domestic hand tools development system is quite mature. Stable, regardless of the product type or structural quality, is at the cutting edge of the times. In recent years, in order to make the user more practical, various hand tools that are easy to operate and user-friendly functions have been asked one after another; however, according to the traditional screwdriver The design is that the handle is combined with the driving rod, and the extended end group of the driving rod forms a shape of a word or a cross. When the user uses the traditional screwdriver, the screw is screwed to the surface of the corresponding soft material, such as a wooden or plastic board. Often, because the force applied is too large, causing unpredictable damage, so the screwdriver has the ability to set the torque, and it is necessary to complete this function in a limited space, and in terms of structural design, it must be able to meet economic benefits. It is necessary to consider the ease and ease of operation. Looking at the above requirements, it has always been a difficult problem to be solved in the design of the screwdriver.
又，按，習用扭力起子，具有一本體，該本體內穿設一對相互對應之一母離合軸與一公離合軸，操作時，旋轉該本體，並對該公離合軸施與一轉動之力量，則該公離合軸之頭組周緣與該母離合軸之凹槽之間的接觸面則因壓迫力而互相抵緊，因公離合軸旋轉使該母離合軸受磨擦作用影響而轉動，進而連動該旋轉工件輸出扭矩。但該公離合軸與握柄之間僅是以簡單的 嵌卡結構相互配合，結構薄弱容易脫出或毀損，對於握柄轉動時扭力的傳達也不完整。Moreover, the conventional torque driver has a body, and the body is provided with a pair of mutually corresponding female clutch shafts and a male clutch shaft. During operation, the body is rotated, and a rotation is applied to the male clutch shaft. The force, the contact surface between the circumference of the head of the male clutch shaft and the groove of the female clutch shaft is pressed against each other by the pressing force, and the rotation of the male clutch shaft causes the female clutch shaft to be rotated by the frictional action, thereby The rotating workpiece output torque is linked. But the male clutch shaft and the handle are only simple The embedded card structure cooperates with each other, and the structure is weak and easy to escape or damage, and the transmission of the torque when the handle is rotated is not complete.
有鑑於此，如何開發一種更具理想實用性之創新結構，實使用消費者所殷切企盼，經創作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創作。In view of this, how to develop an innovative structure with more ideal and practicality, the consumer is eagerly awaited, and the creator has been engaged in the manufacturing development and design experience of related products for many years, and specifically designed and prudently aimed at the above objectives. After the evaluation, the author will have a practical and practical creation.
本創作之主要目的在於提供一種扭力起子，係包括一握柄、一驅動組及一調節組所組成，係供使用者在螺鎖時，可施與預定扭力值。The main purpose of the present invention is to provide a torsion driver comprising a handle, a drive group and an adjustment group for applying a predetermined torque value to the user when the screw is locked.
為達成上述之目的，本創作所提供一種扭力起子，該扭力起子係包含：一握柄，該握柄係包括一多邊形孔；一驅動組，該驅動組係包括一母齒盤，一公齒盤及一連桿，該驅動組係置於該握柄的多邊形孔內，且供扭力起子避免螺鎖物件時，因持續力道過大，造成不可預期之破壞情況發生；一調節組，包括一彈性件，一扭力調整螺帽及一螺桿，該調節組係置於該握柄的多邊形孔內，且供扭力起子螺鎖物件時，所需之扭力調節。In order to achieve the above object, the present invention provides a torque driver comprising: a handle, the handle includes a polygonal hole; a drive group, the drive set includes a female disk, a male tooth a disc and a connecting rod, the driving group is placed in the polygonal hole of the grip, and when the torque driver is used to avoid the screw lock object, the unsustainable damage occurs due to the excessive force path; an adjustment group includes an elasticity a torque adjustment nut and a screw, the adjustment group is placed in the polygonal hole of the handle, and the torque adjustment required for the torque driver to lock the object.
其中當施力於扭力起子時，使用者可自行透過螺旋螺桿，移動扭力調整螺帽設定所需要的扭力值，當螺鎖一物件超過設定扭力值時，因扭力大於彈性件對於公齒盤的壓力，使該公齒盤產生棘齒跳動，進而避免螺鎖物件時，所產生不可預期之破壞情況發生。When the force is applied to the torque driver, the user can manually adjust the torque value of the torque setting nut through the screw screw. When the screw lock exceeds the set torque value, the torque is greater than the elastic member for the male toothed disk. The pressure causes the sprocket to produce ratcheting, thereby preventing unpredictable damage from occurring when the screw is locked.
上所述可知，本創作實是一種相當具有實用性及進步性之 創作，且相當值得產業界加以推廣，並公諸於社會大眾，為使鈞局委員及熟習此項技藝人士對本創作之功效完全瞭解，茲配合圖式及圖號就本創作之結構、組成述說於後，惟以下所述者僅為用來解釋本創作之實施例，並非企圖據以對本創作做任何形式上之限制，是以凡是在本創作之精神下，所作的任何修飾變更皆仍應屬於本創作之保護範圍。As can be seen from the above, this creation is quite practical and progressive. Creation, and quite worthy of promotion by the industry, and publicized to the public, in order to make the members of the bureau and familiar with the artist fully understand the effect of this creation, together with the schema and figure number, the structure and composition of the creation In the following, the following descriptions are only examples for explaining the creation of this creation, and are not intended to impose any formal restrictions on the creation, so any modification made in the spirit of this creation should still be Belongs to the scope of protection of this creation.
為了詳細說明本創作之結構、特徵及功效所在，茲舉以下較佳實施例並配合圖式說明如後。In order to explain the structure, features and functions of the present invention in detail, the following preferred embodiments are described below with reference to the drawings.
第一圖係本創作一較佳實施例之組合示意圖。The first figure is a combination diagram of a preferred embodiment of the present invention.
第二圖係本創作一較佳實施例之分解示意圖。The second drawing is an exploded view of a preferred embodiment of the present invention.
第三圖係本創作一較佳實施例之作動示意圖一。The third figure is a schematic diagram 1 of a preferred embodiment of the present invention.
第四圖係本創作一較佳實施例之作動示意圖二。The fourth figure is a second schematic diagram of the operation of a preferred embodiment of the present invention.
請參閱第一圖至第四圖，本創作一較佳實施例所提供之扭力起子，包含有：一握柄(10)，該握柄(10)係為一長形圓柱狀，該握柄(10)內有一多邊形孔(14)，該多邊形孔(14)自握柄(10)一端面向內凹設，在本實施例中該多邊形孔(14)為六邊形，該握柄(10)另一端面凹設一前貫孔(15)並連通貫穿至該多邊形孔(14)，該前貫孔(15)直徑小於多邊形孔(14)直徑。該握柄(10)係包括一視窗(11)、二插件(12)及二嵌槽(13)，該視窗(11)係為一狹長圓弧狀，設於該握柄(10)並從該握柄(10)外表面貫穿至該多邊形孔(14)，該視窗(11)係供使用者在螺鎖時，可瞭解所施與預定之扭力值。該握柄(10)表面具有二嵌槽(13)，分別由該握柄(10) 表面貫穿至該多邊形孔(14)並且分別位於該握柄(10)中心軸兩側，其位置靠近多邊形孔(14)與該握柄(10)貫穿之端面處且該二嵌槽(13)係供該二插件(12)***該嵌槽(13)內。Referring to the first to fourth figures, a torque driver according to a preferred embodiment of the present invention includes: a handle (10), the handle (10) is an elongated cylindrical shape, and the handle is (10) has a polygonal hole (14) recessed from one end of the handle (10). In the embodiment, the polygonal hole (14) is hexagonal, and the handle (10) The other end surface is recessed with a front through hole (15) and communicates therethrough to the polygonal hole (14), the front through hole (15) having a smaller diameter than the polygonal hole (14). The handle (10) includes a window (11), two inserts (12) and two slots (13). The window (11) is a narrow arc shape, and is disposed on the handle (10) and The outer surface of the handle (10) extends through the polygonal hole (14). The window (11) is for the user to know the applied torque value when the screw is locked. The surface of the handle (10) has two slots (13), respectively, by the handle (10) The surface penetrates into the polygonal hole (14) and is respectively located on both sides of the central axis of the handle (10), and is located near the end face of the polygonal hole (14) and the handle (10) and the two recesses (13) The two inserts (12) are inserted into the recess (13).
一驅動組(30)，該驅動組(30)係包括一母齒盤(31)，一公齒盤(32)及一連桿(33)，該驅動組(30)係置於該多邊形孔(14)內接近於與該前貫孔(15)連通處，該母齒盤(31)配合該多邊形孔(14)的形狀設置，在本實施例中該母齒盤(31)係為六邊形盤，該母齒盤(31)具有一圓孔，該圓孔自六邊形盤一端面貫穿至另一端面，其中母齒盤(31)的一端面具有複數凸塊，且該複數凸塊環繞該圓孔設置，母齒盤(31)另一端面為平面，該母齒盤(31)與多邊形孔(14)互為配合，當施力於扭力起子時，該母齒盤(31)係與握柄(10)同方向旋轉。該公齒盤(32)係為圓柱狀，具有一六邊形孔，該六邊形孔自公齒盤(32)的一端面貫穿至另一端面，其中該公齒盤(32)與母齒盤(31)接觸端面具複數凸塊，且該複數凸塊環繞該六邊形孔周圍，另一端面為平面。該連桿(33)係為圓柱狀，一端具有一凹槽，用於連接昔知之驅動桿，該驅動桿之延伸端部則形成一字或十字之型態，該連桿(33)另一端係具有一第一珠孔(331)。該連桿(33)靠近第一珠孔(331)之環繞面具有一多邊形段，在本實施例中為六邊形，該多邊形段係與公齒盤(32)六邊形孔互為接合，當施力於扭力起子時，該公齒盤(32)係與連桿(33)同方向旋轉，該連桿(33)係穿設於母齒盤(31)與公齒盤(32)，且自該前貫孔(15)穿出該握柄(10)外。a driving group (30), the driving group (30) comprising a female tooth plate (31), a male tooth plate (32) and a connecting rod (33), wherein the driving group (30) is placed in the polygonal hole (14) is in close proximity to the front through hole (15), and the female tooth plate (31) is disposed in a shape matching the polygonal hole (14). In the embodiment, the female tooth plate (31) is six. The sprocket disk (31) has a circular hole extending from one end surface of the hexagonal disk to the other end surface, wherein one end surface of the sprocket disk (31) has a plurality of bumps, and the plurality of convex portions The block is disposed around the circular hole, and the other end surface of the female tooth plate (31) is a plane, and the female tooth plate (31) and the polygonal hole (14) cooperate with each other. When the torque is applied to the torque driver, the female tooth plate (31) ) rotates in the same direction as the handle (10). The sprocket wheel (32) is cylindrical and has a hexagonal hole extending from one end surface of the sprocket wheel (32) to the other end surface, wherein the sprocket wheel (32) and the female tooth The disk (31) contact end masks a plurality of bumps, and the plurality of bumps surround the hexagonal hole, and the other end surface is a flat surface. The connecting rod (33) is cylindrical and has a groove at one end for connecting a known driving rod. The extending end of the driving rod forms a shape of a word or a cross, and the other end of the connecting rod (33) There is a first bead hole (331). The surrounding mask of the connecting rod (33) adjacent to the first bead hole (331) has a polygonal section, which in this embodiment is a hexagonal shape, which is engaged with the hexagonal hole of the male toothed disc (32). When the torque is applied to the torque driver, the male tooth plate (32) rotates in the same direction as the connecting rod (33), and the connecting rod (33) is threaded through the female tooth plate (31) and the male tooth plate (32). And passing through the front through hole (15) out of the handle (10).
一調節組(50)，該調節組(50)係包括一頂珠(51)，一彈性件(52)，一扭力調整螺帽(53)及一螺桿(54)，該調節組(50)係置於 該多邊形孔(14)內，且係供扭力起子螺鎖物件時，所需之扭力調節。An adjustment group (50), the adjustment group (50) comprising a top bead (51), an elastic member (52), a torsion adjustment nut (53) and a screw (54), the adjustment group (50) Placed The required torque adjustment is provided in the polygonal hole (14) for the torque driver to lock the object.
該扭力調整螺帽(53)配合該多邊孔的形狀設置，在本實施例中係為六邊形，內有一螺孔，該螺孔自螺帽一端面貫穿至另一端面，供該扭力調整螺帽(53)係螺合於螺桿(54)之上，透過螺桿(54)的螺旋，使該扭力調整螺帽(53)可以在該多邊形孔(14)內移動而不轉動，用於設定扭力調整螺帽(53)的位置，以達到使用者所需要的扭力值，當該扭力調整螺帽(53)靠近該多邊形孔(14)貫穿該握柄(10)之端面處時，係該扭力值小，反之，該扭力調整螺帽(53)靠近該連桿(33)端，係該扭力值大，當施力於扭力起子時，該扭力調整螺帽(53)係與握柄(10)同方向旋轉。The torque adjusting nut (53) is matched with the shape of the polygonal hole. In this embodiment, the hexagonal shape is hexagonal, and a screw hole is formed therein. The screw hole penetrates from one end surface of the nut to the other end surface for the torque adjustment. The nut (53) is screwed onto the screw (54) and transmitted through the screw of the screw (54) so that the torque adjusting nut (53) can move in the polygonal hole (14) without rotating for setting Torque adjustment nut (53) position to achieve the torque value required by the user, when the torque adjustment nut (53) is close to the polygonal hole (14) through the end face of the handle (10), The torque value is small. Conversely, the torque adjustment nut (53) is close to the end of the connecting rod (33), and the torque value is large. When the torque is applied to the torque driver, the torque adjusting nut (53) is attached to the handle (53). 10) Rotate in the same direction.
該螺桿(54)係為圓柱狀，該螺桿(54)具有外螺紋面，該螺桿(54)一端為六邊形為一扭力調整端(542)，係供使用者在螺鎖時，可設定預定扭力值，該扭力調整螺帽(53)係螺合於螺桿(54)之上，並穿設於彈性件(52)內，且置於該多邊形孔(14)內。該螺桿(54)接近該扭力調整端(542)設有一凸環(55)，該螺桿(54)設於該握柄(10)多邊形孔(14)內時該二插件(12)係落於該凸環(55)與該多邊形孔(14)貫穿該握柄(10)的貫穿端之間，使該螺桿(54)可以不脫出該多邊形孔(14)。The screw (54) is cylindrical, the screw (54) has a male thread surface, and the screw (54) has a hexagonal shape at one end and a torque adjustment end (542), which can be set by the user when the screw is locked. The torque adjustment nut (53) is screwed onto the screw (54) and is disposed in the elastic member (52) and placed in the polygonal hole (14). The screw (54) is provided with a convex ring (55) near the torsion adjusting end (542). When the screw (54) is disposed in the polygonal hole (14) of the handle (10), the two inserts (12) are tied to The convex ring (55) and the polygonal hole (14) penetrate between the through ends of the handle (10), so that the screw (54) can not escape the polygonal hole (14).
該彈性件(52)係為習知彈簧，且置於該多邊形孔(14)內，該彈性件(52)一端頂抵於該公齒盤(32)而另一端頂抵於該扭力調整螺帽(53)。The elastic member (52) is a conventional spring and is disposed in the polygonal hole (14). One end of the elastic member (52) abuts against the male toothed disc (32) and the other end abuts against the torque adjusting screw. Cap (53).
此外，本實施例的作動方式，更詳細地解說如下：當施力於扭力起子時，該作動方式係為使用者握住該握柄 (10)轉動，透過母齒盤(31)與多邊形孔(14)面與面的完整配合該母齒盤(31)係與握柄(10)同方向轉動，透過母齒盤(31)與公齒盤(32)接觸面之複數凸塊結構而相互嵌合，間接帶動公齒盤(32)與連桿(33)，係與施力方向同方向轉動，當螺鎖一物件達一定扭力時，扭力會大於公齒盤(32)因受彈性件(52)壓抵之力，使該公齒盤(32)與母齒盤(31)產生棘齒跳動以達到避免施力過頭的情形。在設定扭力值時，當該扭力調整螺帽(53)靠近該多邊形孔(14)貫穿端，係該扭力值小，反之，該扭力調整螺帽(53)靠近該連桿(33)端，係該扭力值大。該扭力調整螺帽(53)的位置可以由握柄(10)上的視窗(11)得知。In addition, the actuation mode of the embodiment is explained in more detail as follows: when the torque is applied to the torque driver, the actuation mode is that the user holds the handle. (10) Rotating through the mating surface of the female disc (31) and the polygonal hole (14). The female disc (31) rotates in the same direction as the grip (10), through the female disc (31) and The plurality of lug structures of the contact surface of the sprocket wheel (32) are fitted to each other to indirectly drive the sprocket wheel (32) and the connecting rod (33) to rotate in the same direction as the direction of the force applied, and when the screw locks an object, a certain torque is achieved. When the torque is greater than the force of the male toothed disc (32) due to the elastic member (52), the male toothed disc (32) and the female toothed disc (31) are ratcheted to avoid over-stressing. . When the torque value is set, when the torque adjusting nut (53) is close to the penetrating end of the polygonal hole (14), the torque value is small, and vice versa, the torque adjusting nut (53) is close to the connecting rod (33) end. This torque value is large. The position of the torque adjustment nut (53) can be known from the window (11) on the handle (10).
如圖三所示，初期施力於扭力起子時，該母齒盤(31)係與公齒盤(32)因接觸面結構而相互嵌合，當螺鎖一物件達一定扭力時，因扭力值大於該公齒盤(32)受彈性件(52)壓抵之力，使該公齒盤(32)與母齒盤(31)產生棘齒跳動，使母齒盤(31)無法再連動公齒盤(32)，可避免因持續力道過大，造成不可預期之破壞情況發生。As shown in Fig. 3, when the initial force is applied to the torque driver, the female disc (31) and the male (32) are fitted to each other due to the contact surface structure. When the screw locks a certain torque, the torque is due to the torque. The value is greater than the force of the male toothed disc (32) being pressed by the elastic member (52), causing the male toothed disc (32) and the female toothed disc (31) to ratchet, so that the female disc (31) can no longer be linked. The sprocket wheel (32) prevents undesired damage from occurring due to excessive force.
如圖四所示，使用者可自行透過螺旋螺桿(54)，用於設定扭力調整螺帽(53)的位置。As shown in Figure 4, the user can use the screw (54) to set the position of the torque adjustment nut (53).
綜上所陳，藉由前述實施例及各項說明之後，可以瞭解本創作之扭力起子，其具有在螺鎖時，可施與預定扭力值之特點，符合新型專利要件，最後，必須再次說明，本創作於前揭實施例中所揭露的構成元件，僅為舉例說明，並非用來限制本案之範圍，其他等效元件的替代或變化，亦應為本案之申請專利範圍所涵蓋，爰依法提起專利申請，鑑請 鈞局早日核予專利， 實感德便。In summary, after the foregoing embodiments and various descriptions, the torsional screwdriver of the present invention can be understood, which has the characteristics of being able to apply a predetermined torque value when the screw is locked, and conforms to the new patent requirements, and finally, must be explained again. The constituent elements disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention. Alternatives or variations of other equivalent elements are also covered by the scope of the patent application of the present application. File a patent application and ask the bureau to approve the patent as soon as possible. Real sense of virtue.
(10)‧‧‧握柄(10) ‧‧‧Handle
(11)‧‧‧視窗(11)‧‧‧Window
(12)‧‧‧插件(12)‧‧‧ Plugins
(13)‧‧‧嵌槽(13)‧‧‧Inlay
(14)‧‧‧多邊形孔(14)‧‧‧Polygon holes
(15)‧‧‧前貫孔(15) ‧ ‧ front through hole
(30)‧‧‧驅動組(30) ‧‧‧Drive Group
(31)‧‧‧母齒盤(31)‧‧‧The sprocket
(32)‧‧‧公齒盤(32) ‧ ‧ sprocket
(33)‧‧‧連桿(33)‧‧‧ linkage
(331)‧‧‧第一珠孔(331)‧‧‧The first bead hole
(50)‧‧‧調節組(50) ‧ ‧ adjustment group
(51)‧‧‧頂珠(51)‧‧‧ 顶珠
(52)‧‧‧彈性件(52)‧‧‧Flexible parts
(53)‧‧‧扭力調整螺帽(53)‧‧‧Torque adjustment nut
(54)‧‧‧螺桿(54)‧‧‧ screw
(542)‧‧‧扭力調整端(542)‧‧‧Torque adjustment end
(55)‧‧‧凸環(55) ‧ ‧ convex ring
第一圖係本創作一較佳實施例之組合示意圖。The first figure is a combination diagram of a preferred embodiment of the present invention.
第二圖係本創作一較佳實施例之分解示意圖。The second drawing is an exploded view of a preferred embodiment of the present invention.
第三圖係本創作一較佳實施例之作動示意圖一。The third figure is a schematic diagram 1 of a preferred embodiment of the present invention.
第四圖係本創作一較佳實施例之作動示意圖二。The fourth figure is a second schematic diagram of the operation of a preferred embodiment of the present invention.
(10)‧‧‧握柄(10) ‧‧‧Handle
(11)‧‧‧視窗(11)‧‧‧Window
(13)‧‧‧嵌槽(13)‧‧‧Inlay
(14)‧‧‧多邊形孔(14)‧‧‧Polygon holes
(33)‧‧‧連桿(33)‧‧‧ linkage
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101218380U TWM449672U (en) | 2012-09-21 | 2012-09-21 | Torque screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101218380U TWM449672U (en) | 2012-09-21 | 2012-09-21 | Torque screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM449672U true TWM449672U (en) | 2013-04-01 |
Family
ID=48800061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101218380U TWM449672U (en) | 2012-09-21 | 2012-09-21 | Torque screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM449672U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI708663B (en) * | 2020-02-13 | 2020-11-01 | 和嘉興精密股份有限公司 | Torsion structure |
| TWI710434B (en) * | 2020-02-21 | 2020-11-21 | 和嘉興精密股份有限公司 | Torsion structure |
| TWI715476B (en) * | 2020-03-26 | 2021-01-01 | 和嘉興精密股份有限公司 | Torsion structure |
| TWI813423B (en) * | 2022-08-19 | 2023-08-21 | 勝圓興茂有限公司 | torque wrench |
-
2012
- 2012-09-21 TW TW101218380U patent/TWM449672U/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI708663B (en) * | 2020-02-13 | 2020-11-01 | 和嘉興精密股份有限公司 | Torsion structure |
| TWI710434B (en) * | 2020-02-21 | 2020-11-21 | 和嘉興精密股份有限公司 | Torsion structure |
| TWI715476B (en) * | 2020-03-26 | 2021-01-01 | 和嘉興精密股份有限公司 | Torsion structure |
| TWI813423B (en) * | 2022-08-19 | 2023-08-21 | 勝圓興茂有限公司 | torque wrench |
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