TWM468387U - Insulated torque wrench structure - Google Patents
Insulated torque wrench structure Download PDFInfo
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- TWM468387U TWM468387U TW102209748U TW102209748U TWM468387U TW M468387 U TWM468387 U TW M468387U TW 102209748 U TW102209748 U TW 102209748U TW 102209748 U TW102209748 U TW 102209748U TW M468387 U TWM468387 U TW M468387U
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- insulating sleeve
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Description
本創作係有關一種絶緣扭力扳手結構，尤其是一種使扭力扳手整體得以保持絕緣，以符合電氣使用需求的扭力扳手結構設計者。This creation is about an insulated torque wrench structure, especially a torque wrench structure designer that keeps the torque wrench as a whole to meet electrical requirements.
按，在扭力扳手產業界中，所生產的扭力扳手工具，大多以成本低廉及結構強度高為考量；因此，市面上所常見的扭力扳手，大多為金屬一體成型製成者；其結構形態，係於扭力扳手的兩端頭部成型有套合部，而兩端套合部之間，則為供操作者握持的握柄；然而，對於有電氣使用需求者而言，例如：導電機具的活線作業，一般扭力扳手並不能達到絕緣的基本要求；因此，產業界研發出於扭力扳手握柄外部披覆有絕緣外層結構，俾使操作者在握持扭力扳手操作的過程中，得以透過絕緣外層與電氣隔離，並藉此獲致絕緣保護；值得注意的是，扭力扳手工具係於握柄兩端均成型有套合部者，雖然扭力扳手的握柄披覆有絕緣外層，然而操作者在握持使用扭力扳手的過程中，有極大的機會會與另端套合部相接觸，而發生電氣意外；因此，產業界進一步研發出僅於扭力扳手一端頭部製設有套合部者，俾避免操作意外發生。其習知結構請參閱本國專利公報第100117830號所揭之「扭力工具之絶緣裝置」，其特色主要是在於包括有一工具主體及一以絕緣材質所製成的隔離護套；該工具主體係包括有一工作頭件及一握柄，該握柄係呈現為一空心桿體，該工作頭件係具有一插置於握柄內部之***段，及一呈現外露於握柄之工作頭端，該握柄及工作頭端表面係附著有一絕緣防護層，該握柄內部係設有一與***段配合之扭力偵測器，該隔離 護套係包覆於工作頭件與握柄結合部位的表面；如此，該工具主體即可透過絕緣防護層及隔離護套的包覆型態，呈現為一外表面為完整絕緣的手工具，然而，習知扭力工具絶緣裝置因包覆到工作頭件位置，雖可達到完整的包覆構成全部性的絶緣，但在於驅動四角頭位置若包覆住則容易與受驅動件的金屬件產生磨擦，久之會因為局部破損到延伸撕裂至柄部位置，造成絶緣層實際使用時造成破裂等不堪使用情況。According to the torque wrench industry, most of the torque wrench tools produced are considered to be low in cost and high in structural strength; therefore, the torque wrenches commonly used in the market are mostly made of metal integrally formed; The two ends of the torque wrench are formed with a fitting portion, and between the two end fitting portions, the handle is held by the operator; however, for those having electrical needs, for example, a conductive tool In the live line operation, the general torque wrench can not meet the basic requirements of insulation; therefore, the industry has developed an outer layer of the outer surface of the torque wrench with an insulating outer layer structure, so that the operator can pass through the operation of holding the torque wrench. The insulating outer layer is electrically isolated and thereby protected by insulation; it is worth noting that the torque wrench tool is formed with a sleeve at both ends of the handle, although the handle of the torque wrench is covered with an insulating outer layer, but the operator In the process of holding the torque wrench, there is a great chance that it will come into contact with the other end of the fitting and an electrical accident will occur; therefore, the industry further develops At the head end braking torque wrench is provided by engaging the portions, serve to avoid accidental operation. For the conventional structure, please refer to the "insulation device of the torque tool" disclosed in the National Patent Publication No. 100117830, which is mainly characterized by comprising a tool body and an isolation sheath made of an insulating material; the main system of the tool includes The utility model has a working head piece and a handle, the handle body is presented as a hollow rod body, the working head piece has an insertion section inserted into the interior of the handle, and a working head end exposed to the handle, the An insulating protective layer is attached to the surface of the handle and the working end end, and the inside of the handle is provided with a torsion detector matched with the insertion section, the isolation The sheath is coated on the surface of the joint portion of the working head and the handle; thus, the tool body can pass through the covering pattern of the insulating protective layer and the insulating sheath, and presents a hand tool with a completely insulated outer surface. However, the conventional torsion tool insulation device can achieve the complete insulation of the entire package due to the position of the working head piece, but it is easy to produce the metal piece of the driven part if the position of the driving four-corner head is covered. Friction, for a long time, due to partial damage to the extension and tear to the position of the handle, causing the insulation layer to be broken during use.
是以，針對上述習知結構所存在之問題點，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，亦係相關業者須努力研發突破之目標及方向。Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure that is more ideal and practical, and to use the eagerly awaited by consumers, is also the goal and direction of the relevant industry to strive to develop breakthroughs.
有鑑於此，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, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the creator will have a practical and practical creation.
即，本創作之主要目的，係在提供一種絶緣扭力扳手結構；其所欲解決之問題點，係針對習知扭力工具絶緣裝置因包覆到工作頭件位置，雖可達到完整的包覆構成全部性的絶緣，但在於驅動四角頭位置若包覆住則容易與受驅動件的金屬件產生磨擦，久之會因為局部破損到延伸撕裂至柄部位置，造成絶緣層實際使用時造成破裂等不堪情況問題點加以改良突破；而其解決問題之技術特點，主要係藉由包括一柄部本體，該柄部本體一側設有一末端組件，該末端組件外緣表面設有複數鰭狀槽，該末端組件一側端設有一主體管件，該組體管件內部容設有一第一扭力件，該第一扭力件一側係迫抵一扭力彈簧，該扭力彈簧一側係迫抵一第二扭力件，該第二扭力件係藉由一連結件連動一扭擺體之一離合端，該扭擺體另端設有一組段，該組段貫設有一組孔，該扭擺體末端設有一扳動件，該扳動件一側端面凸設有一扳動端，另該主體管件一側端徑向設有一銷孔，該銷孔提供一插銷組入，該插銷末端設有一嵌環槽，該插銷組入該銷孔後令一嵌片嵌組該嵌環槽，且該扳動件頂部設有一控制該扳動件正逆向操作之鎖扣鈕； 其特徵在於該上述之該柄部本體、該末端組件、該主體管件、該扭擺體及該扳動件表面皆包覆射出形成有複數絶緣套，各該絶緣套間配合上述元件組裝俾相互設有一卡扣部做彼此連結定位；藉此創新獨特設計，使本創作在操作之該扭力扳手之手工具時，得以適合於電氣用途使用；並突破了習知扭力扳手之絶緣裝置包覆該四角頭扳動端後，造成因容易磨擦造成局部破損，久之會撕裂至柄部絶緣層之技術瓶頸，而得以符合產業界及一般使用者的實際需求。That is, the main purpose of the present invention is to provide an insulated torque wrench structure; the problem to be solved is to achieve a complete coating composition for the conventional torsion tool insulation device due to the position of the working head member. Insulation of all kinds of insulation, but if the position of the driving four-corner head is covered, it will easily rub against the metal parts of the driven part. For a long time, it may be broken due to partial damage to the position of the handle, causing cracking during the actual use of the insulating layer. The technical problem of solving the problem is mainly by including a handle body, the end of the handle body is provided with a terminal assembly, and the outer surface of the end assembly is provided with a plurality of fin grooves. One end of the end assembly is provided with a main tubular member, and the first tubular member is internally provided with a first torsion member, and the first torsion member is urged against a torsion spring, and the torsion spring side is forced against a second torsion The second torsion member is coupled to a clutch end of the twisting body by a connecting member, the twisting body is provided with a set of segments at the other end, and the set of segments is provided with a set of holes, the twisting body The end of the trigger member is provided with a triggering end, and the one end of the main tubular member is radially provided with a pin hole, and the pin hole provides a pin assembly, and the pin end is provided with an insert. a ring groove, the latch is assembled into the pin hole, and an insert is embedded in the ring groove, and a top of the trigger member is provided with a lock button for controlling the reverse operation of the trigger member; The shank body, the end assembly, the main tubular member, the twisting body and the surface of the trigger member are all covered and formed with a plurality of insulating sleeves, and the insulating sleeves are matched with the components. A buckle portion is connected to each other; the innovative and unique design enables the creation to be suitable for electrical use when the hand wrench of the torque wrench is operated; and the insulation device covering the conventional torque wrench covers the four corners After the head is pulled, it causes partial damage due to easy friction, and it will tear the technical bottleneck of the handle insulation layer for a long time, so as to meet the actual needs of the industry and general users.
10‧‧‧第一絶緣套10‧‧‧First insulating sleeve
20‧‧‧第二絶緣套20‧‧‧Second insulation sleeve
21‧‧‧第二卡扣部21‧‧‧Second buckle
30‧‧‧第三絶緣套30‧‧‧ Third insulating sleeve
31‧‧‧第三卡扣部31‧‧‧ Third buckle
40‧‧‧第四絶緣套40‧‧‧fourth insulation sleeve
41‧‧‧第四套孔41‧‧‧The fourth set of holes
42‧‧‧第四卡扣部42‧‧‧fourth buckle
50‧‧‧第五絶緣套50‧‧‧ fifth insulating sleeve
51‧‧‧第五套孔51‧‧‧ fifth set of holes
52‧‧‧第五卡扣部52‧‧‧ fifth buckle
53‧‧‧第五卡扣端53‧‧‧ fifth buckle end
60‧‧‧第六絶緣套60‧‧‧ sixth insulating sleeve
61‧‧‧第六卡扣部61‧‧‧ sixth buckle
62‧‧‧第六卡扣端62‧‧‧ sixth buckle end
63‧‧‧徑向孔63‧‧‧radial holes
70‧‧‧第七絶緣套70‧‧‧ seventh insulating sleeve
71‧‧‧第七卡扣部71‧‧‧ seventh buckle
72‧‧‧第七卡扣端72‧‧‧ seventh buckle end
73‧‧‧第七套孔73‧‧‧ seventh set of holes
80‧‧‧第八絶緣套80‧‧‧8th insulating sleeve
81‧‧‧第八軟部區段81‧‧‧ eighth soft section
82‧‧‧第八卡扣部82‧‧‧eighth buckle
90‧‧‧第九絶緣件90‧‧‧Ninth insulation
A1‧‧‧柄部本體A1‧‧‧ handle body
B1‧‧‧末端組件B1‧‧‧End components
B2‧‧‧鰭狀槽B2‧‧‧Fin
C1‧‧‧主體管件C1‧‧‧ body fittings
C2‧‧‧插銷C2‧‧‧Tram
C3‧‧‧嵌環槽C3‧‧‧ Inch groove
C4‧‧‧銷孔C4‧‧‧ pinhole
C5‧‧‧組孔C5‧‧‧ group hole
C6‧‧‧嵌片C6‧‧‧Inlay
D1‧‧‧扭擺體D1‧‧‧Twisted body
D2‧‧‧離合端D2‧‧‧ clutch end
D3‧‧‧組段D3‧‧ Section
D4‧‧‧組孔D4‧‧‧ hole
D5‧‧‧扳動件D5‧‧‧ Pulling parts
D6‧‧‧扳動端D6‧‧‧Tip end
D7‧‧‧彈性圈D7‧‧‧elastic ring
D8‧‧‧鎖扣鈕D8‧‧‧Lock button
E1‧‧‧第一扭力件E1‧‧‧First Torque Parts
E2‧‧‧扭力彈簧E2‧‧‧Torque Spring
E3‧‧‧第二扭力件E3‧‧‧Second Torque Parts
E4‧‧‧連結件E4‧‧‧Links
第1圖：係本創作之組合剖視立體圖。Figure 1: A sectional view of the combination of the present creation.
第2圖：係本創作之分解立體圖。Figure 2: An exploded perspective view of the creation.
第3圖：係本創作之剖視圖。Figure 3: A cross-sectional view of the creation.
第4圖：係本創作之立體外觀圖。Figure 4: This is a three-dimensional appearance of the creation.
請參閱第1~4圖所示，係本創作絶緣扭力扳手結構之較佳實施例，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，其係包括：一金屬材質之柄部本體(A1)，該柄部本體(A1)一側設有一末端組件(B1)，該末端組件(B1)外緣表面設有複數鰭狀槽(B2)，該末端組件(B1)一側端設有一主體管件(C1)，該組體管件內部容設有一第一扭力件(E1)，該第一扭力件(E1)一側係迫抵一扭力彈簧(E2)，該扭力彈簧(E2)一側係迫抵一第二扭力件(E3)，該第二扭力件(E3)係藉由一連結件(E4)連動一扭擺體(D1)之一離合端(D2)，該離合端(D2)末端套入有一彈性圈(D7)，該扭擺體(D1)另端設有一組段(D3)，該組段(D3)貫設有一組孔(D4)，該扭擺體(D1)末端設有一扳動件(D5)，該扳動件(D5)一側端面凸設有一四角頭扳動端(D6)，另該主體管件(C1)一側端徑向設有一銷孔(C4)，該銷孔(C4)提供一插銷(C2)組入，該插銷(C2)末端設有一嵌環槽(C3)，該插銷(C2)組入該銷孔(C4)後令一嵌片(C6)嵌組該嵌環槽(C3)，且該扳動件(D5)頂部設有一控制該扳動件(D5)正逆向操 作之鎖扣鈕(D8)；繼而，該上述之該柄部本體(A1)、該末端組件(B1)、該主體管件(C1)、該扭擺體(D1)及該扳動件(D5)皆為金屬材質製成，其各表面皆包覆射出形成有複數橡塑性材質製成之絶緣套，各該絶緣套間配合上述元件組裝俾相互設有一卡扣部做彼此連結定位，其中該所述之絶緣套包含有一包覆射出於該柄部本體(A1)及該末端組件(B1)之一第一絶緣套(10)，該第一絶緣套(10)一端延伸形成有一第四絶緣套(40)，該第四絶緣套(40)內部設有一第四套孔(41)，該第四絶緣套(40)一端延伸有一第四卡扣部(42)，該第四絶緣套(40)表面設有一第二絶緣套(20)，該第二絶緣套(20)一端設有一第二卡扣部(21)，該第二卡扣部(21)係對應卡扣連結一第三絶緣套(30)之一第三卡扣部(31)，另該主體管件(C1)表面係包覆射出有一第五絶緣套(50)及一第六絶緣套(60)，該第五絶緣套(50)內設有一第五套孔(51)，該第五套孔(51)提供該主體管件(C1)套組定位，該第五絶緣套(50)對應該第四絶緣套(40)一端設有一第五卡扣端(53)，該第五絶緣套(50)對應該第六絶緣套(60)一端設有一第五卡扣部(52)，該第六絶緣套(60)對應該第五卡扣部(52)設有一第六卡扣部(61)，該第六絶緣套(60)另端設有一第六卡扣端(62)，該第六卡扣端(62)鄰側徑向設有一徑向孔(63)，該徑向孔(63)係對應該主體管件(C1)之該銷件，又該扳動件(D5)表面包覆射出有一第八絶緣套(80)，該第八絶緣套(80)對應該第六絶緣套(60)一端設有一第八軟部區段(81)，該第八軟部區段(81)外緣係環凸形成有一第八卡扣部(82)，其中該第六絶緣套(60)與該第八絶緣套(80)進一步連結卡扣有一第七絶緣套(70)，其中該第七絶緣套(70)內部中空形成有一第七套孔(73)，該第七套孔(73)係外覆於該扭擺體(D1)之該組段(D3)位置，該第七套孔(73)內緣壁面兩端係分別設有一第七卡扣部(71)及一第七卡扣端(72)，其中該第七卡扣部(71)係卡扣定位於該第六絶緣套(60)之該第六卡扣端(62)，該第七卡扣端(72)係係卡扣定位於該第八絶緣套(80)之該第八卡扣部(82)，繼而該扳動件(D5)之該鎖扣鈕(D8)係包覆射出有一第九絶緣件(90)，繼而並令該四角頭扳動端(D6)外露，亦即該四角頭扳動端(D6)為非絶緣形態者。Please refer to FIGS. 1~4 for a preferred embodiment of the structure of the insulated torque wrench. However, these embodiments are for illustrative purposes only and are not limited by this structure in the patent application. a metal handle body (A1) having a terminal assembly (B1) on one side of the handle body (A1), and a plurality of fin grooves (B2) on the outer edge surface of the end assembly (B1), the end assembly (B1) a main body pipe member (C1) is disposed at one end, and a first torsion member (E1) is disposed inside the group pipe member, and a side of the first torsion member (E1) is forced against a torsion spring (E2). The torsion spring (E2) side is forced against a second torsion member (E3), and the second torsion member (E3) is coupled to a clutch end (D1) by a coupling member (E4) (D2) The end of the clutch end (D2) is sleeved with an elastic ring (D7), and the other end of the twisting body (D1) is provided with a set of segments (D3), and the set of segments (D3) is provided with a set of holes (D4). The end of the torsion pendulum body (D1) is provided with a triggering member (D5), and a four-headed end (D6) is protruded from one end surface of the triggering member (D5), and one side end of the main tubular member (C1) is radially disposed. There is a pin hole (C4) which is provided with a pin (C2), The end of the pin (C2) is provided with a ring groove (C3). The pin (C2) is assembled into the pin hole (C4), and an insert (C6) is embedded in the ring groove (C3), and the trigger member is assembled. (D5) The top is provided with a control for the trigger (D5) forward and reverse operation a locking button (D8); then, the handle body (A1), the end assembly (B1), the main tubular member (C1), the twisting body (D1) and the trigger member (D5) All of the surfaces are made of a metal material, and each surface thereof is covered and formed with a plurality of insulating sleeves made of a plurality of rubber-plastic materials, and each of the insulating sleeves is assembled with the above-mentioned components, and a snap portion is mutually provided for connection and positioning. The insulating sleeve includes a first insulating sleeve (10) which is coated and protruded from the handle body (A1) and the end assembly (B1). The first insulating sleeve (10) is extended at one end to form a fourth insulation. a fourth sleeve (41) is disposed inside the fourth insulating sleeve (40), and a fourth fastening portion (42) is extended at one end of the fourth insulating sleeve (40), the fourth insulating sleeve (the fourth insulating sleeve (40) 40) a second insulating sleeve (20) is disposed on the surface, and a second fastening portion (21) is disposed at one end of the second insulating sleeve (20), and the second fastening portion (21) is coupled to the buckle to be coupled to the third a third fastening portion (31) of the insulating sleeve (30), and the surface of the main tubular member (C1) is coated with a fifth insulating sleeve (50) and a sixth insulating sleeve (60), the fifth insulation There is a fifth in the set (50) a hole (51), the fifth set of holes (51) provides positioning of the main tubular member (C1), and the fifth insulating sleeve (50) is provided with a fifth snap end at one end of the fourth insulating sleeve (40) ( 53) The fifth insulating sleeve (50) is provided with a fifth fastening portion (52) corresponding to one end of the sixth insulating sleeve (60), and the sixth insulating sleeve (60) corresponds to the fifth fastening portion (52) A sixth fastening portion (61) is disposed, the sixth insulating sleeve (60) is provided with a sixth locking end (62) at the other end, and the sixth locking end (62) is provided with a radial hole adjacent to the radial direction. (63), the radial hole (63) corresponds to the pin of the main pipe member (C1), and the surface of the trigger member (D5) is coated with an eighth insulating sleeve (80), the eighth insulating sleeve (80) corresponding to one end of the sixth insulating sleeve (60) is provided with an eighth soft section (81), and the outer edge of the eighth soft section (81) is convexly formed with an eighth buckle portion (82), wherein The sixth insulating sleeve (60) and the eighth insulating sleeve (80) are further coupled to the seventh insulating sleeve (70), wherein the seventh insulating sleeve (70) is hollowly formed with a seventh sleeve hole (73). The seventh set of holes (73) is overlaid on the group (D3) of the twist pendulum body (D1), and the seventh set of holes (73) A seventh fastening portion (71) and a seventh locking end (72) are respectively disposed at the two ends of the wall, wherein the seventh fastening portion (71) is buckled and positioned on the sixth insulating sleeve (60). The sixth buckle end (62), the seventh buckle end (72) is fastened to the eighth buckle portion (82) of the eighth insulating sleeve (80), and then the trigger member ( The locking button (D8) of D5) is coated with a ninth insulating member (90), and then the four-headed end (D6) is exposed, that is, the four-headed end (D6) is non- Insulation form.
藉此，當使用者在操作之該扭力扳手之手工具時，得以適合於電氣用途使用；並突破了習知扭力扳手之絶緣裝置包覆該四角頭扳動端後，造成因容易磨擦造成局部破損，久之會撕裂至柄部絶緣層之技術瓶頸，而得以符合產業界及一般使用者的實際需求。Thereby, when the user operates the hand tool of the torque wrench, it is suitable for electrical use; and breaks through the insulation device of the conventional torque wrench to cover the four-headed end of the wrench, causing local friction due to easy friction. Damage, long-term tearing to the technical bottleneck of the handle insulation, and to meet the actual needs of industry and general users.
歸納上述的說明，藉由本創作上述結構的設計，可有效克服習式新型所面臨的缺失，進一步具有上述眾多的優點及實用價值，因此本創作為一創意極佳之新型創作，且在相同的技術領域中未見相同或近似的產品創作或公開使用，故本創作已符合新型專利有關『新穎性』與『進步性』的要件，乃依法提出申請。By summarizing the above description, the design of the above structure can effectively overcome the shortcomings faced by the new style of the formula, and further has the above-mentioned numerous advantages and practical value, so this creation is an innovative new creation, and in the same The same or similar product creation or public use has not been seen in the technical field. Therefore, this creation has met the requirements of the novelty of "newness" and "progressiveness", and is applied according to law.
10‧‧‧第一絶緣套10‧‧‧First insulating sleeve
20‧‧‧第二絶緣套20‧‧‧Second insulation sleeve
30‧‧‧第三絶緣套30‧‧‧ Third insulating sleeve
50‧‧‧第五絶緣套50‧‧‧ fifth insulating sleeve
60‧‧‧第六絶緣套60‧‧‧ sixth insulating sleeve
70‧‧‧第七絶緣套70‧‧‧ seventh insulating sleeve
80‧‧‧第八絶緣套80‧‧‧8th insulating sleeve
90‧‧‧第九絶緣件90‧‧‧Ninth insulation
D6‧‧‧扳動端D6‧‧‧Tip end
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102209748U TWM468387U (en) | 2013-05-24 | 2013-05-24 | Insulated torque wrench structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102209748U TWM468387U (en) | 2013-05-24 | 2013-05-24 | Insulated torque wrench structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM468387U true TWM468387U (en) | 2013-12-21 |
Family
ID=50156019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102209748U TWM468387U (en) | 2013-05-24 | 2013-05-24 | Insulated torque wrench structure |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM468387U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI581917B (en) * | 2016-11-16 | 2017-05-11 | Yi-Fu Chen | Torque wrench positioning device |
| TWI594848B (en) * | 2017-01-17 | 2017-08-11 | Retractable ratchet wrench structure (2) | |
| TWI644762B (en) * | 2017-09-18 | 2018-12-21 | 和嘉興精密有限公司 | Rotationally adjustable torque wrench |
-
2013
- 2013-05-24 TW TW102209748U patent/TWM468387U/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI581917B (en) * | 2016-11-16 | 2017-05-11 | Yi-Fu Chen | Torque wrench positioning device |
| TWI594848B (en) * | 2017-01-17 | 2017-08-11 | Retractable ratchet wrench structure (2) | |
| TWI644762B (en) * | 2017-09-18 | 2018-12-21 | 和嘉興精密有限公司 | Rotationally adjustable torque wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4K | Annulment or lapse of a utility model due to non-payment of fees |