200930256 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種轉動制動結 於防止二部件隨意相對轉動之轉動制冓係關於-種用 【先前技術】 ^ 生産生活令，經當堂1ι日 望該二部件之相對位，並希 進行操作而不晃動。需要這 =思位置對其 β筆記型電腦等。 機構之裝置有電腦顯示器、 種S知用於液晶顯示器之轉钍 *晶顯示器之底座及顯示幕固定連:::動=分别與 件。該轉動部件與固定部件可相對二及固定部 之軸線上設置有提供軸向六 ；/、相對轉動 ° 彈性件及複數摩擦片。彈性 件七供之軸向力推頂各摩擦片與轉 = 接觸而不能隨意轉動。$，彈 H緊雄 ❹片間産生軸向壓力’故當外力作用使物：：：:f擦 具有相對轉動趨勢時，摩擦片之間產擦广？ 要該外力小於該靜摩擦力，則轉動部件 二立以^只 於原位而不相對轉動。 *疋部件可停留 在該轉動結構中’若摩擦片、 間過鬆，轉動部件與固定部件 :及口疋口p件之 持在任意位置，若摩捧片、易任意轉動而不能保 則使轉動部件及_卩件相對轉動較爲費力另= 緊動 結構使用—段時間後，可能由於彈性件之失效或料片ί 6 200930256 ，相等原因使其摩擦片、轉動部件及固定部件之間變鬆， 成其無法繼續於任意位置停留。 4 【發明内容】 鑒於以上内容，有必要提供一種可實 之轉動制動結構。 貫見-。Η牛間制動 一種轉動制動結構，其包括二固定件及一轉軸， γ轉動地穿設於固定件内。該轉動制動結構還包括二 ❹ 簧，該二扭簧套設並緊繞於該轉軸上，且該二扭簧之二= 分別與二固定件配合而不可相對固定件轉動而將轉軸： 緊。對該二扭簧之另-端施加外力可使該二扭簧鬆繞於 轴而便於轉動轉轴。 如上所述，本發明之轉動制動結構中，當二扭簧處於 對轉軸鎖緊之狀態時，在不破壞各構件之情況下，即使對 轉軸施加較大之力也無法轉動轉軸，從而可使轉軸相對固 定件穩固地停留在任意位置。同時，在將二扭菁之另—端 ❹施加外力可使該二扭簧鬆繞於轉軸，此時可輕鬆地轉動轉 軸。 【實施方式】 下面將參照附圖詳細說明本發明之實施例。 凊參閱圖1 ’轉動制動結構2〇包括二固定件22、二轉 動件24及一轉動制動元件26。 每個固定件22包括一支持部222及一樞轉部224。支 持部222大體為板狀，樞轉部224大體為圓柱狀，其一端 200930256 垂直地連接於支持部222上，一圓形之樞轉孔226貫通支 •持部222及樞轉部224。固定件22上開設有一從樞轉部224 之側壁一直延伸到支持部222之卡固槽228。可以理解， 該二固定件22還可一體成型。 轉動件24為板狀，其上開設有一方形卡扣孔242。 轉動制動元件26包括一轉軸262、二扭簧264及一拉 簧 266。 轉轴262大體為圓柱狀，其兩端分別凸設有一方形卡 ❹ 塊2622，該卡塊2622之形狀及大小對應轉動件24上之卡 扣孔242，以配合地卡入該卡扣孔242内而使轉動件24與 轉轴262不可轉動連接。轉轴262之圓柱.面上還設有一沿 其周向延伸之突肋2624。 扭簧264為柱狀，其包括複數簧圈（圖未標）、一第一 端部2642及一第二端部2644。該第一端部2642及第二端 部2644分別位於扭簧264之二相對端。該第一端部2642 ❹及第二端部2644均沿扭簧264之簧圈徑向延伸，第一端部 2642末端延伸有一 S形吊鉤2646。扭簧264之簧圈均比 轉軸262截面大，故將二扭簧264套設於轉轴262上時， 未對其施力，扭簧264鬆繞於轉軸262上。扭簧264之複 數簧圈之軸向截面為長方形，當扭簧264緊繞於轉轴262 上時，扭簧264與轉轴262具有較大之接觸面積。 拉簧266為一拉伸彈簧，其包括二設於其兩相對端之 掛鉤2662。拉簧266之二掛鉤2662分別與二扭簧264之 8 200930256 第一端部2642相連，以對二扭簧264施力。 • 請一併參閱圖2及圖3，組裝時，將二扭簣264分別 從轉軸262相對之兩端套於轉軸262上，二扭簧264均鬆 繞於轉軸262上，其分別位於轉轴262突肋2624之兩側， 且二扭簀264相向設置，即其第一端部2642相互靠近；然 後，將套有扭簧264之轉軸262穿設於二固定件22之樞轉 孔226内，使扭簧264之第二端部2644插入固定件22之 卡固槽228内而不可相對固定件22轉動，轉軸262可相對 V固定件22轉動；接著，將拉簧266之二掛鉤2662分別掛 於二扭簧264之第一端部2642之吊鉤2646上，拉簧266 被拉伸而對二扭簧264之第一端部2642施加拉力，而此時 二扭簧264之第二端部2644均相對固定件22固定，因此 二扭簧264被拉緊，即在初始狀態時，二扭簧264緊緊地 纏繞在轉軸262上，而將轉軸262鎖緊使其不能相對固定 件22轉動，此時轉動件24也不能相對固定件22轉動，實 ❹現制動功能。 當需要轉動轉動件24時，對二扭簧264之吊鉤2646 或拉簧266之掛鉤2662施加外力，使得拉簧266繼續拉 伸，解除其對二扭簧264之第一端部2642之作用力，即藉 由改變二扭簧264之第一端部2642之受力，使扭簧264 鬆繞於轉軸262上，轉軸262即可相對固定件22轉動，從 而使轉動件24可被轉動。將轉動件24轉動至需要位置後， 停止施加外力，拉簧264在其儲存之彈力作用下收縮，由 此將二扭簧264拉緊而緊緊地纏繞在轉軸262上，實現再 9 200930256 次制動。 可以理解，為方便操作，可設置一拉桿（圖未示），該 拉桿一端分別連接於拉簣266之一掛鉤2662端或其中一扭 簧264之第一端部2642上，拉桿另一端伸出到一方便操作 之位置。這樣，初始狀態時，拉簧266拉緊二扭簣264， 使其緊繞於轉轴262上，需轉動轉軸262時，藉由拉桿對 二扭簧264之第一端部2642施加作用力，使二扭簧264 鬆繞於轉軸262上，將轉軸262放鬆。 ❹ 在本實施例中，可以省略拉簧266，設置二拉桿使其 一端分別連接於二扭簣264之第一端部2642,二拉桿另一 端伸出到一方便操作之位置；初始狀態時，二拉桿將二扭 簧264拉緊，使其緊繞於轉軸262上，將轉轴262鎖緊， 需轉動轉軸262時，藉由二拉桿對二扭簧264之第一端部 2642施加作用力，使二扭簧264鬆繞於轉軸262上，將轉 軸262放鬆，以便於轉動轉軸262。 ❹ 可以理解，在本實施例中，可調整固定件22之結構使 二扭簧264之第一端部2642均相對固定件22固定，第二 端部2644可相對於轉軸262轉動。初始狀態時，二扭簧 264緊繞於轉軸262上，將轉轴262鎖緊，需轉動轉軸262 時，對二扭簧264之第二端部2644施加外力，也可使二扭 簧264鬆繞於轉轴262上，便於轉軸262轉動。也可以使 一扭簧264之第一端部2642及另一扭簧264之第二端部 2644相對於固定件22固定，二扭簧264之另外兩端部可 相對於轉軸262轉動。初始狀態時，二扭簧264緊繞於轉 200930256 軸262上，將轉軸262鎖緊，需轉動轉軸262時，對二扭 •簧264之另外兩端部施加作用力，同樣可實現二扭簧264 鬆繞於轉軸262上，以便於轉動轉軸262。 採用該轉動制動結構20,當二扭簧264處於對轉轴262 鎖緊之狀態時，在不破壞各構件之情況下，即使對轉動件 24施加較大之力也無法轉動轉動件24，從而可使轉動件 24相對固定件22穩固地停留在任意位置。同時，在將二 扭簧264之鎖緊解除後，可輕鬆地轉動轉動件24。 ® 可以理解，轉軸262與轉動件24可為一體。拉簧266 可由其他拉緊件代替，包括彈性件和非彈性件。本發明之 轉動制動結構20可用於液晶顯示器等裝置中，當其應用到 液晶顯示器時，固定件22藉由其上開設之裝配孔229連接 至液晶顯示器之底座，轉動件24藉由其上開設之裝配孔 244連接至液晶顯示器之顯示幕。 可以理解，在本發明中，二扭簧264之簧圈還可設計 〇得比轉軸262截面小，將二扭簧264套於轉軸262上，其 第一端部2642相互靠近。初始狀態時，二扭簧264緊繞於 轉轴262上，將轉軸262鎖緊。同時設置二拉桿使其一端 分別連接於二扭簧264之第一端部2642，二拉桿另一端伸 出到一方便操作之位置；這樣，需轉動轉軸262時，藉由 二拉桿對二扭簧264之第一端部2642施加外力，使二扭簧 264鬆繞於轉軸262上，此時轉轴262可自由轉動。 綜上所述，本發明符合發明專利要件，爰依法提出專 利申請。惟，以上所述者僅為本發明之較佳實施例，舉凡 11 200930256 熟悉本案技藝之人士，在援依本案發明精神所作之等效修 飾或變化，皆應包含於以下之申請專利範圍第内。 【圖式簡單說明】 圖1係本發明轉動制動結構之立體分解圖； 圖2係本發明轉動制動結構之轉動制動元件組裝圖； 圖3係本發明轉動制動結構之組裝圖。 【主要元件符號說明】200930256 IX. Description of the invention: [Technical field of the invention] The present invention relates to a rotary brake system for preventing the two components from rotating relative to each other at the same time. [Previous technique] ^ Production life order, by the church 1 Looking at the relative position of the two components, and hope to operate without shaking. Need this = think about the location of its beta notebook and so on. The device of the mechanism has a computer monitor, and the type of S is used for the conversion of the liquid crystal display. * The base of the crystal display and the display screen are fixedly connected::: motion = separately and pieces. The rotating member and the fixing member are disposed on the axis of the fixing portion and the fixing portion to provide an axial direction of the elastic member and the plurality of friction plates. The elastic members are supplied with the axial force to push the top friction plates and the rotation = contact and cannot be rotated freely. $, elastic H tight male to produce axial pressure between the cymbals', so when the external force makes the object::::f rub with a relative rotation trend, the friction between the friction sheet production? If the external force is less than the static friction force, the rotating member is positioned to be in the home position without relative rotation. *疋The part can stay in the rotating structure. 'If the friction plate is too loose, the rotating part and the fixed part: and the mouth piece p piece are held at any position. If the piece is easy to rotate, it cannot be guaranteed to rotate. The relative rotation of the parts and _ 卩 is more laborious. = The use of the tight structure - after a period of time, may be loosened between the friction lining, the rotating part and the fixed part due to the failure of the elastic part or the piece ί 6 200930256 , as it can not continue to stay anywhere. 4 SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a tangible rotational braking structure. See you -. Brake between the yak A rotary brake structure includes two fixing members and a rotating shaft, and γ is rotatably disposed in the fixing member. The rotating brake structure further includes two springs, and the two torsion springs are sleeved and tightly wound on the rotating shaft, and the two torsion springs are respectively matched with the two fixing members and are not rotatable relative to the fixing members to rotate the shaft: tight. Applying an external force to the other end of the two torsion springs allows the two torsion springs to be loosened around the shaft to facilitate rotation of the shaft. As described above, in the rotary brake structure of the present invention, when the two torsion springs are in the state of locking the rotating shaft, the rotating shaft cannot be rotated even if a large force is applied to the rotating shaft without damaging the respective members, thereby making the rotating shaft Relatively fixed to the fixed position in any position. At the same time, an external force is applied to the other end of the two twisted cyanine to loosen the two torsion springs, and the rotating shaft can be easily rotated. [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to Figure 1, the 'rotary brake structure 2' includes two fasteners 22, two rotors 24 and a rotary brake element 26. Each of the fixing members 22 includes a supporting portion 222 and a pivoting portion 224. The support portion 222 is substantially plate-shaped, and the pivot portion 224 is substantially cylindrical. One end of the spring 200930256 is vertically connected to the support portion 222, and a circular pivot hole 226 extends through the support portion 222 and the pivot portion 224. A fixing groove 228 extending from a side wall of the pivoting portion 224 to the supporting portion 222 is defined in the fixing member 22. It can be understood that the two fixing members 22 can also be integrally formed. The rotating member 24 has a plate shape and has a square snap hole 242 formed therein. The rotating brake member 26 includes a rotating shaft 262, two torsion springs 264, and a tension spring 266. The rotating shaft 262 is substantially cylindrical, and a square latching block 2622 is respectively protruded from opposite ends of the rotating shaft 262. The shape and size of the latching block 2622 correspond to the latching holes 242 of the rotating member 24 to fit into the latching holes 242. The rotating member 24 is not rotatably coupled to the rotating shaft 262. The cylindrical surface of the rotating shaft 262 is further provided with a protruding rib 2624 extending along the circumferential direction thereof. The torsion spring 264 is cylindrical and includes a plurality of coils (not shown), a first end 2642 and a second end 2644. The first end portion 2642 and the second end portion 2644 are respectively located at opposite ends of the torsion spring 264. The first end portion 2642 and the second end portion 2644 both extend radially along the coil of the torsion spring 264, and an S-shaped hook 2646 extends from the end of the first end portion 2642. The torsion spring 264 has a larger cross section than the rotating shaft 262. Therefore, when the two torsion springs 264 are sleeved on the rotating shaft 262, the torsion spring 264 is not loosened on the rotating shaft 262. The axial cross section of the plurality of coils of the torsion spring 264 is a rectangle. When the torsion spring 264 is wound around the rotating shaft 262, the torsion spring 264 has a large contact area with the rotating shaft 262. The tension spring 266 is a tension spring that includes two hooks 2662 disposed at opposite ends thereof. The two spring hooks 2662 of the tension springs 266 are respectively connected to the first end portions 2642 of the two torsion springs 264 8 200930256 to apply force to the two torsion springs 264. Please refer to FIG. 2 and FIG. 3 together. When assembling, the two twisting jaws 264 are respectively sleeved on the rotating shaft 262 from opposite ends of the rotating shaft 262, and the two torsion springs 264 are loosely wound on the rotating shaft 262, which are respectively located on the rotating shaft. The two ends of the 262 ribs 2624 are disposed opposite to each other, that is, the first end portions 2642 are adjacent to each other; then, the rotating shaft 262 of the torsion spring 264 is inserted into the pivot hole 226 of the two fixing members 22 The second end portion 2644 of the torsion spring 264 is inserted into the fixing groove 228 of the fixing member 22 and is not rotatable relative to the fixing member 22. The rotating shaft 262 can be rotated relative to the V fixing member 22; then, the two springs 266 are hooked 2662 respectively Hanging on the hook 2646 of the first end portion 2642 of the two torsion springs 264, the tension spring 266 is stretched to apply a pulling force to the first end portion 2642 of the two torsion springs 264, and at this time, the second end of the two torsion springs 264 The portions 2644 are all fixed relative to the fixing member 22, so that the two torsion springs 264 are tightened, that is, in the initial state, the two torsion springs 264 are tightly wound around the rotating shaft 262, and the rotating shaft 262 is locked so as not to be opposite to the fixing member 22 When the rotation is made, the rotating member 24 cannot be rotated relative to the fixing member 22 at this time, and the braking function is realized. When the rotating member 24 needs to be rotated, an external force is applied to the hook 2646 of the two torsion springs 264 or the hooks 2662 of the tension springs 266, so that the tension spring 266 continues to stretch, and the action of the first end portion 2642 of the two torsion springs 264 is released. The force, that is, by changing the force of the first end portion 2642 of the two torsion springs 264, causes the torsion spring 264 to be loosened on the rotating shaft 262, and the rotating shaft 262 can be rotated relative to the fixing member 22, so that the rotating member 24 can be rotated. After the rotating member 24 is rotated to the required position, the application of the external force is stopped, and the tension spring 264 is contracted by the elastic force of the storage, thereby tightening the two torsion springs 264 tightly around the rotating shaft 262, thereby achieving 9 200930256 times. brake. It can be understood that, for the convenience of operation, a pull rod (not shown) may be disposed, and one end of the pull rod is respectively connected to one end of the hook 2662 of the pull tab 266 or the first end portion 2642 of one of the torsion springs 264, and the other end of the pull rod is extended. Go to a convenient location. Thus, in the initial state, the tension spring 266 tightens the second twist 264 so as to be tightly wound around the rotating shaft 262. When the rotating shaft 262 is required to be rotated, the first end portion 2642 of the two torsion springs 264 is biased by the pulling rod. The two torsion springs 264 are loosened on the rotating shaft 262 to loosen the rotating shaft 262. ❹ In this embodiment, the tension spring 266 can be omitted, and two pull rods are disposed such that one end thereof is respectively connected to the first end portion 2642 of the second twist 264, and the other end of the two pull rods protrudes to a convenient operation position; in an initial state, The two tension rods tighten the two torsion springs 264 so as to be tightly wound around the rotating shaft 262 to lock the rotating shaft 262. When the rotating shaft 262 is required to rotate, the first end portion 2642 of the two torsion springs 264 is biased by the two pulling rods. The two torsion springs 264 are loosened on the rotating shaft 262, and the rotating shaft 262 is loosened to facilitate rotating the rotating shaft 262. ❹ It can be understood that in the present embodiment, the structure of the adjustable fixing member 22 is such that the first end portions 2642 of the two torsion springs 264 are fixed relative to the fixing member 22, and the second end portion 2644 is rotatable relative to the rotating shaft 262. In the initial state, the two torsion springs 264 are tightly wound around the rotating shaft 262, and the rotating shaft 262 is locked. When the rotating shaft 262 is required to be rotated, an external force is applied to the second end portion 2644 of the two torsion springs 264, and the two torsion springs 264 can also be loosened. Winding on the rotating shaft 262 facilitates the rotation of the rotating shaft 262. It is also possible to fix the first end portion 2642 of one torsion spring 264 and the second end portion 2644 of the other torsion spring 264 with respect to the fixing member 22, and the other end portions of the torsion springs 264 are rotatable relative to the rotating shaft 262. In the initial state, the two torsion springs 264 are tightly wound on the shaft 262 of the 200930256, and the rotating shaft 262 is locked. When the rotating shaft 262 is required, a force is applied to the other ends of the two twisting springs 264, and the two torsion springs can also be realized. 264 is loosened on the rotating shaft 262 to facilitate rotating the rotating shaft 262. With the rotating brake structure 20, when the two torsion springs 264 are locked in the state of locking the rotating shaft 262, the rotating member 24 cannot be rotated even if a large force is applied to the rotating member 24 without damaging the members. The rotating member 24 is stably held at an arbitrary position with respect to the fixing member 22. At the same time, the rotation member 24 can be easily rotated after the locking of the two torsion springs 264 is released. ® It can be understood that the rotating shaft 262 and the rotating member 24 can be integrated. The tension spring 266 can be replaced by other tensioning members, including elastic members and non-elastic members. The rotating brake structure 20 of the present invention can be used in a liquid crystal display device or the like. When it is applied to a liquid crystal display, the fixing member 22 is connected to the base of the liquid crystal display through the mounting hole 229 formed therein, and the rotating member 24 is opened thereon. The mounting hole 244 is connected to the display screen of the liquid crystal display. It can be understood that, in the present invention, the coil of the two torsion springs 264 can also be designed to be smaller than the cross section of the rotating shaft 262, and the two torsion springs 264 are sleeved on the rotating shaft 262, and the first end portions 2642 are close to each other. In the initial state, the two torsion springs 264 are wound around the rotating shaft 262 to lock the rotating shaft 262. At the same time, two pull rods are disposed, one end of which is respectively connected to the first end portion 2642 of the two torsion springs 264, and the other end of the two pull rods is extended to a convenient position; thus, when the rotating shaft 262 is required, the two torsion springs are connected by the two pull rods The first end portion 2642 of 264 applies an external force to loosen the two torsion springs 264 on the rotating shaft 262, and the rotating shaft 262 is free to rotate. In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and those skilled in the art, which are familiar with the art of the present invention, should be included in the following claims. . BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a rotary brake structure of the present invention; Fig. 2 is an assembled view of a rotary brake component of the rotary brake structure of the present invention; and Fig. 3 is an assembled view of the rotary brake structure of the present invention. [Main component symbol description]
轉動制動結構 20 固定件 22 支持部 222 樞轉部 224 樞轉孔 226 卡固槽 228 裝配孔 229 轉動件 < 24 卡扣孑L 242 裝配孔 244 轉動制動組件 26 轉轴 262 卡塊 2622 突肋 2624 扭簧 264 第一端部 2642 第二端部 2644 吊鉤 2646 拉簧 266 掛鉤 2662 12Rotating brake structure 20 Fixing member 22 Supporting portion 222 Pivot portion 224 Pivot hole 226 Retaining groove 228 Mounting hole 229 Rotating member < 24 Snap 孑 L 242 Mounting hole 244 Rotating brake assembly 26 Rotary shaft 262 Block 2622 Stud 2624 torsion spring 264 first end 2642 second end 2644 hook 2646 tension spring 266 hook 2662 12