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TW200804041A - Structure of torque wrench - Google Patents

Structure of torque wrench Download PDF

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Publication number
TW200804041A
TW200804041A TW95127406A TW95127406A TW200804041A TW 200804041 A TW200804041 A TW 200804041A TW 95127406 A TW95127406 A TW 95127406A TW 95127406 A TW95127406 A TW 95127406A TW 200804041 A TW200804041 A TW 200804041A
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TW
Taiwan
Prior art keywords
roller
compression spring
ball
torque wrench
push rod
Prior art date
Application number
TW95127406A
Other languages
Chinese (zh)
Other versions
TWI300740B (en
Inventor
Yi-Min Wu
Original Assignee
Matatakitoyo Tool Co Ltd
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Filing date
Publication date
Application filed by Matatakitoyo Tool Co Ltd filed Critical Matatakitoyo Tool Co Ltd
Priority to TW95127406A priority Critical patent/TW200804041A/en
Publication of TW200804041A publication Critical patent/TW200804041A/en
Application granted granted Critical
Publication of TWI300740B publication Critical patent/TWI300740B/zh

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Abstract

The present invention relates to a structure of torque wrench, and in particular to a switching structure that features uniform application of force and smooth switching. The switching structure is arranged between a compression spring and a driving bar of a torque device. The switching structure has a ball arranged at an end of the driving bar. A roller seat is arranged at a corresponding end of the compression spring. The roller seat rotatably supports a roller that abuts against the ball. A sphere is arranged in a side wall of the roller seat and has a circumference engaging the roller and an inside surface of a handle bar. The features of the present invention are that a vertical central axis of the sphere is located at one side of a vertical central axis of the roller that is opposite to the driving bar. With such an arrangement, when a torque exceeds a preset threshold of the compression spring, causing the driving bar to depress the roller with the ball and thus compressing the compression spring, the end the roller seat corresponding to the driving bar gains support, making the roller seat move in a parallel condition and overcome the problem of erroneous adjustment due to non-uniform application force acting of the compression spring to thereby extend the service life thereof.

Description

200804041 九、發明說明: 【發明所屬之技術領域】 本發明隸屬一種扭力扳手之跳位技術,具體而言係 指一種可讓壓縮彈簧平均受力、且延長使用壽命的扭 5扳手結構。 【先前技術】 已知,扭力扳手係一種用以保護螺栓或螺帽的扳手 工具,當扳手轉動螺栓或螺帽之反作用力超過預設的扭 力值%,可讓套頭單元形成跳脫空轉,以避免螺栓或螺 1〇 ,因施力過當而咬牙、崩牙或滑脫,且可防止往後發生 無法卸下的問題,而現有扭力扳手主要係如第一、二圖 所不,其係於一端部具套頭單元(15)之中空柄桿(1〇 )内设有一扭力裝置,該扭力裝置包含有 :連接套頭單元(15)的推桿(21)及一可受力壓縮之 15壓f彈簧(22),且壓縮彈簧(22)另端於柄桿(1〇) 上設有一可調節其作用力之調鈕(23),再者為了保持 推桿(21)作動壓縮彈簧(22)的穩定性與確實性,兩 者間通常會設有一撥動結構(24),前述撥動結構(24 係於推杯(21)之端面上緣設有一可滾動之滚珠(25 〇 ),並於壓縮彈簧(22)上設有一輪座(26),該輪座 (26)於對應端面利用柩軸(27)柩設有一滾輪(28) 同蚪為了保持輪座(2β)滑動的順暢性,並於輪座( 26)下方側壁上設有一同步貼抵滾輪(28)周緣與柄桿 μ 、^〇)内壁面之珠體(29),且為了保持輪座(26)的 5平衡,一般係將該珠體(29)設於滚輪(28)垂直中心 5 200804041 5 15 20 線對應壓縮彈簧(22)的一侧(與壓縮彈簧同側)【如 弟三圖】;然而如第三、四圖所示,當扭力扳手轉動螺 栓或螺帽之反作用力超過壓縮彈簧(22)之預設值時, 推桿(21)會略為向下向後移動,此時受到滾珠(25) 轉動輪座(26)滾輪(28)的影響,使輪座(26)進一 步壓細鈾述壓纟体黃(2 2 ),讓套頭單元(15 )跳脫空 轉’但當滾珠(25)下壓輪座(26)之滾輪(28)時, 輪座(26)對應滚珠(25)同側之底緣並無任何支撐, 而會使輪座(26)以珠體(29)與柄桿(1〇)内壁面之 ,觸點為支點而傾斜,進一步使輪座(26)壓動壓縮彈 簧(M)時之力道不平均,而影響到其扭力反作力的反 ,,再者長期操作下也會造成壓縮彈簧(22)的疲乏, 影響到曰後扭力調整的準確性,甚至縮短其使用壽命。 緣是,藉由申請人多年從事相關產業的開發經驗, t對現有扭力扳手所面臨的問題深入探討,並積極尋求 2之道’經過長期努力之研究與發展,終於成功的創 結構㈣善咖力扳手之撥動 【發明内容】 以:r 本發明主要係在提供力扳手結構,夢 以增進其操作的穩定性與準確性。 再猎 實現ί:明過下列的技術手段,來具體 中空柄桿内設有-扭力裝置,扭力裝置: 有一連接套頭單元的推桿及—可受力_之屋縮彈; 6 25 200804041 ,再者推桿與壓縮彈簧間設有一撥動結構;其特徵在於 撥動結構之壓縮彈簧端部設有一輪座,輪座内利用 樞轴樞設有一略為凸出之滚輪,又輪座底面側壁樞設有 5 —珠體,且珠體周緣可同步與滾輪邊緣及柄桿内壁面貼. 抵,再者珠體之垂直中心線位於滚輪垂直中心線相對推 桿的一側,又撥動結構於推桿對應壓縮彈簧之端面鄰近 上緣處柩設有一可滾動之滾珠,該滚珠並與前述滾輪周 緣貼抵; 10 藉此,透過本發明前述技術手段的具體展現,讓本 發明扭力扳手之扭力超過壓縮彈簀設定值,而推桿利用 滾珠向下壓抵滾輪推動壓縮彈簧時,可讓輪座對應推桿 一端獲得支撐,使輪座可保持平行移動,改善壓縮彈簀 因受力不均而產生調整誤差的問題,進一步可延長其使 15用壽命,而能增加其附加價值,同時提升產品的競爭力 與經濟效益。 接下來配合圖式及圖號,同時舉一較佳實施例做進 一步之說明,期能使貴審查委員對本發明有更詳細的 暸解,惟以下所述者僅為用來解釋本發明之較佳實施例 20 ,並非企圖據以對本發明做任何形式上之限制,因此凡 是在本發明之創作精神下,所為任何型式的修飾或變更 ,皆仍應屬於本發明意圖保護之範疇。 【實施方式】 本發明係一種扭力扳手結構,如第五、六圖所顯示 25者,扭力扳手係於一端部具套頭單元(15)之中空柄桿 200804041 (10)内設有一扭力裝置(20) 該扭力裝置(20)句 含有一連接套頭單元(15)的推桿(21)及一可 縮之壓縮彈簧(22),且壓縮彈簧(22)另端於柄^ 10)上設有一可調節其作用力之調鈕(23),再 ^ 以 之 (21)與壓縮彈貫(22)間設有—撥動結構(5〇), 上所述之結構及動作原理與現有者相同,且非本發 特徵所在,容不再贅述; 又 —而關於本發明特徵結構之較佳實施例,則請同時參 看第六、七圖所揭示者,該撥動結構(5〇)之壓縮彈箬 1〇 (22)端部設有一輪座(51),該輪座(51)對應推桿 (21 ) —知形成有一谷置空間(52),且輪座(η )於 容置空間(52)内利用樞軸(53)樞設有一滾輪(54) ,该滾輪(54)周緣並可略為凸出前述之容置空間(μ ),又輪座(51)底面側壁形成有一珠孔(55),該珠 15孔(55)内樞設有一珠體(56),且珠體(56)周緣可 同步與滾輪(54)邊緣及柄桿(1〇)内壁面貼抵,再者 珠體(56)之垂直中心線位於滾輪(54)垂直中心線相 對推桿(21)的一側(與推桿同側),使輪座(51)底 面獲得支撐,又撥動結構(5〇)於推桿(21)對應壓縮 20彈黃(22)之端面鄰近上緣處樞設有一可滾動之滚珠( 57) ’該滚珠(57)並與前述滾輪(54)周緣貼抵; 藉此’當扭力扳手向下扳動時,可透過推桿(21) 之滾珠(57)壓抵壓縮彈簧之滾輪(54),進一 步利用輪座(51)壓縮前述之壓縮彈簧(22),讓套頭 25單兀(15)跳脫空間,而組構成一受力平均、且可延長 200804041 使用壽命之扭力扳手結構者。 至於本發明之實際運用,則係如第六及八圖所顯示 者,當扭力扳手轉動螺栓或螺帽之反作用力超過壓縮彈 簧(22)之預設值時,推桿(21)會略為向下向後移動 5 ’此時受到滾珠(57)轉動輪座(51 )滚輪(54)的影 響,使輪座(51)進一步壓縮前述壓縮彈簧(22),讓 套頭單元(15)跳脫空轉,然當滾珠(57)下壓滾輪( 54)時,輪座(51)對應滾珠(57)同侧之底緣可受到 _ 珠體(56)的支撐,使輪座(51 )可保持其平行度,因 1〇此當輪座(51)壓動壓縮彈簧(22)時,可讓壓縮彈簧 (22)平均受力,而不致影響到壓縮彈簣之反作 力的反應,可有效保持扭力調整的準確性,進一步可延 長其使用哥命,而能提升產品的競爭力與經濟效益。 綜上所述,可以理解到本發明為一創意極佳之創作 15 ,可大幅增進功效,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,同時具有功效的增進,故 _ 本發明已符合發明專利有關「新穎性」與「進步性」的 要件,乃依法提出發明專利申請,祈請早日賜准本發明 專利,至感德便。 200804041 【圖式簡單說明】 第一圖200804041 IX. INSTRUCTIONS: [Technical Field of the Invention] The present invention is a jumper technology of a torque wrench, and specifically refers to a twisted wrench structure that allows the compression spring to be subjected to an average force and prolongs the service life. [Prior Art] It is known that a torque wrench is a wrench tool for protecting a bolt or a nut. When the reaction force of the wrench turning the bolt or the nut exceeds a preset torque value of %, the ferrule unit can be formed to escape and idling. Avoid bolts or screws, bite, disintegrate or slip due to excessive force, and prevent problems that cannot be removed in the future. The existing torque wrenches are mainly as shown in the first and second figures. A torque device is disposed in the hollow shank (1 〇) of the ferrule unit (15) at one end, and the torsion device comprises: a push rod (21) connecting the ferrule unit (15) and a compressively compressible 15 pressure f a spring (22), and the compression spring (22) is provided on the shank (1 〇) with a knob (23) for adjusting its force, and in order to keep the push rod (21) actuating the compression spring (22) Stability and reliability, usually with a toggle structure (24), the above-mentioned toggle structure (24 is attached to the upper edge of the push cup (21) with a rollable ball (25 〇), and a wheel seat (26) is disposed on the compression spring (22), and the wheel seat (26) is on the corresponding end face A roller (28) is provided with a roller (28), in order to maintain the smoothness of the sliding of the wheel base (2β), and a synchronous abutting roller (28) is provided on the lower side wall of the wheel base (26). μ, ^〇) the inner wall of the bead (29), and in order to maintain the balance of the wheel base (26), generally the bead (29) is placed on the vertical center of the roller (28) 5 200804041 5 15 20 line corresponding One side of the compression spring (22) (on the same side as the compression spring) [as shown in the third figure]; however, as shown in the third and fourth figures, when the torque wrench turns the bolt or the nut, the reaction force exceeds the compression spring (22). At the preset value, the push rod (21) will move slightly downwards and backwards. At this time, it is affected by the ball (25) rotating the wheel base (26) roller (28), so that the wheel base (26) is further pressed into the uranium. Body yellow (2 2 ), let the ferrule unit (15) jump off idling 'but when the ball (25) presses the roller (28) of the wheel base (26), the wheel base (26) corresponds to the same side of the ball (25) There is no support at the bottom edge, and the wheel base (26) is tilted by the inner surface of the bead (29) and the shank (1〇), and the contact is fulcrum, further making the wheel base (26) When the compression spring (M) is dynamic, the force is not uniform, which affects the reverse of the torque reaction. In addition, the compression spring (22) is fatigued under long-term operation, which affects the accuracy of the torque adjustment after the squat. Even shorten its service life. The reason is that, through the applicant's years of experience in the development of related industries, t is in-depth discussion on the problems faced by the existing torque wrench, and actively seeks the 2 way. After a long period of hard work of research and development, finally succeeded in creating a structure (four) good coffee The movement of the force wrench [invention] To: r The present invention mainly provides the structure of the force wrench, dreaming to improve the stability and accuracy of its operation. Re-hunting realizes ί: The following technical means are used to provide a torsion device in the hollow stem. Torque device: a push rod connecting the ferrule unit and the detachable bomb; 6 25 200804041 A toggle structure is arranged between the push rod and the compression spring; the end of the compression spring of the toggle structure is provided with a wheel seat, and a slightly protruding roller is pivoted in the wheel base, and the bottom wall of the wheel base is pivoted There is a 5-bead body, and the periphery of the bead can be simultaneously attached to the edge of the roller and the inner wall of the shank. The vertical center line of the bead is located on the side of the vertical center line of the roller relative to the push rod, and the structure is dialed. The end surface of the push rod corresponding to the compression spring is provided with a rollable ball adjacent to the upper edge, and the ball is in contact with the circumference of the roller; 10, thereby, the torque of the torque wrench of the present invention is made through the specific display of the foregoing technical means of the present invention. Exceeding the set value of the compression magazine, and when the push rod is pressed against the roller to push the compression spring, the wheel seat can be supported by the end of the corresponding push rod, so that the wheel seat can maintain parallel movement and improve the compression bullet The problem of uneven adjustment caused by uneven force can further extend its life span, and increase its added value, while enhancing the competitiveness and economic benefits of the product. The present invention will be further described in conjunction with the drawings and the drawings, and the present invention will be described in more detail, but the following description is only for explaining the preferred embodiment of the present invention. The embodiment 20 is not intended to limit the scope of the invention, and any modifications or alterations of the invention are intended to be included in the scope of the invention. [Embodiment] The present invention is a torque wrench structure, as shown in the fifth and sixth figures. The torque wrench is provided with a torsion device (20) in the hollow stem 200804041 (10) with the socket unit (15) at one end. The torque device (20) includes a push rod (21) for connecting the ferrule unit (15) and a retractable compression spring (22), and the compression spring (22) is provided on the shank (10). Adjusting the force of the button (23), and then (21) and the compression ball (22) is provided with a toggle structure (5〇), the structure and operation principle described above are the same as the existing ones. And the features of the present invention are not described again; and - with regard to the preferred embodiment of the features of the present invention, please refer to the sixth and seventh figures, the compression structure of the toggle structure (5〇) The end of the 箬1〇(22) is provided with a wheel seat (51) corresponding to the push rod (21), which is formed to have a valley space (52), and the wheel base (η) is in the accommodating space ( 52) a pivot (53) is pivoted inside the pivot shaft (53), and the circumference of the roller (54) can slightly protrude from the aforementioned accommodation space (μ), and the wheel (51) a sidewall of the bottom surface is formed with a bead hole (55), the bead 15 (55) is internally provided with a bead body (56), and the periphery of the bead body (56) can be synchronized with the edge of the roller (54) and the stem (1) 〇) The inner wall surface is abutted, and the vertical center line of the bead body (56) is located on the side of the vertical center line of the roller (54) relative to the push rod (21) (on the same side as the push rod), so that the bottom surface of the wheel base (51) Obtaining the support, and pushing the structure (5〇) to the end of the push rod (21) corresponding to the compression 20 spring yellow (22) adjacent to the upper edge, pivoting a ball (57) 'the ball (57) and the foregoing The circumference of the roller (54) is abutted; thereby, when the torque wrench is pulled downward, the ball (57) of the push rod (21) can be pressed against the roller (54) of the compression spring to further compress by the wheel base (51). The aforementioned compression spring (22) allows the ferrule 25 to trip out of space (1), and the group constitutes a torque wrench structure that is averaged and can extend the service life of 200804041. As for the practical application of the present invention, as shown in the sixth and eighth figures, when the reaction force of the torque wrench rotating bolt or nut exceeds the preset value of the compression spring (22), the push rod (21) will slightly Moving downwards 5' is affected by the rotation of the wheel (57) wheel (51) roller (54), so that the wheel base (51) further compresses the compression spring (22), allowing the ferrule unit (15) to idling, However, when the ball (57) presses the roller (54), the wheel base (51) corresponding to the bottom edge of the ball (57) on the same side can be supported by the _ bead (56), so that the wheel base (51) can maintain its parallel Degree, because the compression seat (22) is pressed when the wheel base (51) is pressed, the compression spring (22) can be subjected to an average force without affecting the reaction of the reaction force of the compression magazine, and the torque can be effectively maintained. The accuracy of the adjustment can further extend the use of his life, and can enhance the competitiveness and economic benefits of the product. In summary, it can be understood that the present invention is an innovative creation 15 which can greatly improve the efficacy, and the same or similar product creation or public use is not seen in the same technical field, and the efficiency is improved. _ The invention has met the requirements of "newness" and "progressiveness" of the invention patents, and is to file an invention patent application according to law, and pray for the early grant of the invention patent to the sense of virtue. 200804041 [Simple description of the diagram] The first picture

10 你扭力扳手之外觀示意圖。 係習式扭力扳手之剖面示意圖。、 J糸習式扭力扳手之局部放大示意圖 說明其構成及其相對關係。 ,習式扭力扳手之動作剖面示意圖 步說明其撥動時之狀態。 係本發明扭力扳手之剖面示意圖。 係本發明扭力扳手之局部剖面示意圖 係習式扭力扳手之局部放大示音圖 不本發明主要構成元件及其相關位置 .係本發明扭力扳手之動作剖面示意 以說明其撥動時之狀態。 【主要元件符號說明】 第 第 圖 圖 第四圖 第五圖 第六圖 第七圖 第八圖 用以 進一 其揭 ,藉10 Schematic diagram of the appearance of your torque wrench. A schematic view of a cross-section of a torque wrench. A partial enlarged view of the J-type torque wrench explains its composition and its relative relationship. The schematic diagram of the action profile of the conventional torque wrench indicates the state of the toggle. A schematic cross-sectional view of a torque wrench of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view of a torque wrench of the present invention. A partial enlarged view of a torque wrench of the present invention. The main constituent elements of the present invention and their related positions are shown in the schematic section of the torque wrench of the present invention to illustrate the state of the torque wrench. [Main component symbol description] The first figure The fourth picture The fifth picture The sixth picture The seventh picture The eighth picture is used to further reveal

(10) 柄桿 (20) 扭力裝置 (22) 壓縮彈簧 (24) 撥動結構 (26) 輪座 (28) 滾輪 (50) 撥動結構 (52) 容置空間 (54) 滾輪 (56) 珠體 (15) 套頭單元 (21) 推桿 (23) 調鈕 (25) 滾珠 (27) 才區轴 (29) 珠體 (51) 輪座· (53) 樞軸 (55) 珠孔 (57) 滾珠 10(10) Shank (20) Torque device (22) Compression spring (24) Toggle structure (26) Wheel base (28) Roller (50) Toggle structure (52) Housing space (54) Roller (56) Bead Body (15) Socket unit (21) Pusher (23) Adjuster (25) Ball (27) Sphere (29) Bead (51) Wheel base · (53) Pivot (55) Bead hole (57) Ball 10

Claims (1)

200804041 十、申請專利範圍: 1、一種扭力扳手結構,該扭力扳手係於一端部具 套頭單元之中空柄桿内設有一扭力裝置,扭力裝置包含 有一連接套頭單元的推桿及一可受力壓縮之壓縮彈簧, 5再者推桿與壓縮彈簧間設有一撥動結構; 撥動結構之壓縮彈簧端部設有一輪座,輪座内利用 樞軸樞設有一略為凸出之滚輪,又輪座底面侧壁樞設有 一珠體,且珠體周緣可同步與滾輪邊緣及柄桿内壁面貼 抵,再者珠體之垂直中心線位於滾輪垂直中心線相對推 10桿的一侧,又撥動結構於推桿對應壓縮彈簧之端面鄰近 上緣處柩設有一可滚動之滾珠,該滚珠並與前述滚輪周 緣貼抵; 藉此,組構成一受力平均、且可延長使用壽命之扭 力扳手結構者。 11200804041 X. Patent application scope: 1. A torque wrench structure, which is provided with a torsion device in a hollow stem with a ferrule unit at one end, the torsion device comprises a push rod connecting the ferrule unit and a compressible force The compression spring, 5 is further provided with a toggle structure between the push rod and the compression spring; the end of the compression spring of the toggle structure is provided with a wheel seat, and the wheel base is pivotally provided with a slightly protruding roller and a wheel seat The side wall of the bottom surface is pivotally provided with a bead body, and the periphery of the bead body can be synchronously abutted against the edge of the roller and the inner wall surface of the shank, and the vertical center line of the bead body is located on the side of the vertical center line of the roller relative to the 10 pole, and is also moved. The end surface of the push rod corresponding to the compression spring is adjacent to the upper edge and is provided with a rollable ball which is in contact with the circumference of the roller; thereby forming a torque wrench which is averaged and can prolong the service life. Structure. 11
TW95127406A 2006-07-12 2006-07-12 Structure of torque wrench TW200804041A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113184698A (en) * 2020-01-14 2021-07-30 宝山钢铁股份有限公司 Spring force detection device and method of traveling hydraulic push rod brake
TWI743978B (en) * 2020-09-04 2021-10-21 蔡文凱 Torque wrench torque adjusting device (1)

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TWI399265B (en) * 2011-01-19 2013-06-21 Kabo Tool Co Rolling wheel of torque wrench
TWI464039B (en) * 2012-08-07 2014-12-11 Kabo Tool Co Torque release structure of a torque wrench
TWI643715B (en) * 2018-04-02 2018-12-11 優鋼機械股份有限公司 Torque wrench with elastic parts
TWI641452B (en) * 2018-04-02 2018-11-21 優鋼機械股份有限公司 Torque wrench with torque adjustment mechanism
TWI643714B (en) * 2018-04-02 2018-12-11 優鋼機械股份有限公司 Torque wrench with cover
CN114012645A (en) * 2021-11-16 2022-02-08 杭州昕迈科技有限公司 Torque wrench

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113184698A (en) * 2020-01-14 2021-07-30 宝山钢铁股份有限公司 Spring force detection device and method of traveling hydraulic push rod brake
CN113184698B (en) * 2020-01-14 2022-10-21 宝山钢铁股份有限公司 Spring force detection device and method of traveling hydraulic push rod brake
TWI743978B (en) * 2020-09-04 2021-10-21 蔡文凱 Torque wrench torque adjusting device (1)

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