TWM518456U - Improvement of spindle torsion structure - Google Patents

Description

轉軸扭力構造的改良 Improvement of the rotating shaft torque structure

本新型是有關一種轉軸扭力構造的改良，特別是指一種在可相對轉動的軸孔和軸桿之間，透過環狀多角形彈片的介入，使軸桿於軸孔內轉動時，藉著不會隨著軸桿轉動而轉動的扭力彈片迫緊，增強扭力矩，達到軸桿轉動至任一角度都可確實定位而不虞滑脫鬆動者。 The present invention relates to an improvement of a torsion structure of a rotating shaft, in particular to an intervening through a circular polygonal elastic piece between a relatively rotatable shaft hole and a shaft, so that when the shaft is rotated in the shaft hole, The torsion springs that rotate as the shaft rotates are tightened, and the torsional moment is enhanced, so that the shaft can be rotated to any angle and can be surely positioned without slipping and loosening.

目前市面上所見之電子產品，例如：筆記型電腦、行動電話、翻譯機、PDA(個人數位助理)...等，均設有一主機體，以及一可相對主機體形成樞轉或偏轉角度的螢幕，為達到前述樞轉或偏轉角度的作用，乃有鉸鍊或轉軸構造之發明。 The electronic products currently seen on the market, such as notebook computers, mobile phones, translators, PDAs (personal digital assistants), etc., all have a main body and a pivoting or deflection angle with respect to the main body. The screen, in order to achieve the aforementioned pivoting or yaw angle, is an invention of a hinge or shaft configuration.

如中華民國專利公告第420321號新型專利案，其揭露：一固定座、一軸管、一定位板及一管簧架組成，其中固定座及軸管可分別設置於電腦的本體及螢幕上，固定座一側形成有結合孔，一呈工型的橫槽設於結合孔側邊並與其相通，由片體成型的管簧架，其一端為直片且在直片的端頭側面形成有突部，另一端呈中空管體的軸 孔可供軸管一端的轉軸穿設，前述的管簧架可設置在固定座的結合孔與工型橫槽內定位。 For example, in the new patent case of the Republic of China Patent No. 420321, it discloses: a fixed seat, a shaft tube, a positioning plate and a tube spring frame, wherein the fixing seat and the shaft tube can be respectively disposed on the body of the computer and the screen, and fixed A joint hole is formed on one side of the seat, and a horizontal groove is formed on the side of the joint hole and communicates with the side of the joint hole. The spring frame formed by the sheet body has a straight piece at one end and a protrusion on the side of the end of the straight piece. The other end is the axis of the hollow tube The hole can be inserted through the rotating shaft at one end of the shaft tube, and the aforementioned tube spring frame can be disposed in the joint hole of the fixing seat and the working type horizontal groove.

惟該專利案之組裝構造過於複雜，不僅製造成本高，有一零件磨損即會影響整體的功能。 However, the assembly structure of the patent case is too complicated, and the manufacturing cost is high, and the wear of one part affects the overall function.

另有中華民國專利公告第M388814號新型專利案，請參照第1圖所示，其揭露：一種具彈性抵持定位之轉軸結構，係設置有軸筒，軸筒內穿設有軸桿，軸筒內設置有固定部，而軸桿外緣設置有可與固定部形成定位之定位部，該轉軸於軸桿100之下方側設置有具彈性偏擺以及彈性位移之抵持件200，抵持件200末端形成有抵持部201，而軸桿100外緣於定位部一側設置有缺槽101，抵持部201為抵持於缺槽101內，俾利用抵持件200之彈性位移能力，使軸筒與軸桿100相互配合形成定位時，推抵軸桿100來消除軸筒與軸桿100之間的間隙，使軸桿更加穩定定位，讓使用轉軸之物品不會在定位狀態時產生晃動。 In addition, the new patent case No. M388814 of the Republic of China Patent Publication No. M388814, as shown in Fig. 1, discloses: a shaft structure with elastically resisting positioning, which is provided with a shaft barrel, and a shaft rod and shaft are bored in the shaft barrel A fixing portion is disposed in the cylinder, and the outer edge of the shaft is provided with a positioning portion that can be positioned with the fixing portion. The rotating shaft is disposed on the lower side of the shaft 100 with a resilient yaw and elastic displacement resisting member 200 for resisting The end of the member 200 is formed with a resisting portion 201, and the outer edge of the shaft 100 is provided with a notch 101 on the side of the positioning portion. The resisting portion 201 is resisted in the notch 101, and the elastic displacement capability of the resisting member 200 is utilized. When the shaft cylinder and the shaft 100 are matched to each other to form a positioning, the shaft 100 is pushed against the gap between the shaft barrel and the shaft 100 to make the shaft more stable, so that the articles using the shaft are not in the positioning state. Shaking.

惟該專利案利用在軸桿下方設置具彈性偏擺以及彈性位移之抵持件，抵持件有容易斷裂的問題。 However, the patent uses a resisting member having an elastic yaw and an elastic displacement under the shaft, and the resisting member has a problem of being easily broken.

創作人有鑑於前述先前技術之缺點，乃依其從事各種轉軸之製造經驗和技術累積，針對上述缺失悉心研究各種解決的方法，在經過不斷的研究、實驗與改良後，終於開發設計出本新型之一種轉軸扭力構造的改良，期能 摒除先前技術所產生之缺失。 In view of the shortcomings of the prior art mentioned above, the creators have developed and designed the new type after careful research and experimentation and improvement based on the manufacturing experience and technical accumulation of various shafts. An improvement of the rotating shaft torque structure Eliminate the lack of prior art.

因此，本新型旨在提供一種轉軸扭力構造的改良，係在軸桿和軸孔之間設置一具缺口的多角形扭力彈片，利用該多角形扭力彈片的厚度略大於軸桿和軸孔之間的間隙，而且使扭力彈片在軸孔內被固定不動，使軸桿和軸孔的組合為可適當轉動又可及時定位之緊配合結構。 Therefore, the present invention aims to provide an improvement of the rotating shaft torque structure by providing a notched polygonal torsion elastic piece between the shaft and the shaft hole, and the thickness of the polygonal torsion elastic piece is slightly larger than between the shaft and the shaft hole. The gap, and the torsion spring is fixed in the shaft hole, so that the combination of the shaft and the shaft hole is a tight fit structure that can be properly rotated and positioned in time.

依本新型之轉軸扭力構造的改良，介於軸桿和軸孔之間的多角形扭力彈片係以金屬材料一體成型，其被夾設於軸桿和軸孔之間時，其缺口的角端或轉角角端得嵌入軸孔的內壁，使其不致隨著軸桿之轉動而轉動，為本新型之次一目的。 According to the improvement of the novel rotating shaft torque structure, the polygonal torsion elastic piece between the shaft and the shaft hole is integrally formed of a metal material, and when it is sandwiched between the shaft and the shaft hole, the corner end of the notch Or the corner end of the corner hole is embedded in the inner wall of the shaft hole so that it does not rotate with the rotation of the shaft, which is the second purpose of the present invention.

依本新型之轉軸扭力構造的改良，其軸孔內壁面係設有提供多角形扭力彈片之缺口角端或轉角角端得以嵌入固定的固定部，使軸桿於軸孔內轉動時，扭力彈片不會隨著軸桿之轉動而轉動，因此可在緊配合壓力下，達到軸桿轉動至任一角度均不虞滑脫，為本新型之再一目的。 According to the improvement of the rotating shaft structure of the novel shaft, the inner wall surface of the shaft hole is provided with a fixing portion for providing a notched corner end or a corner end of the polygonal torsion elastic piece, and the torsion elastic piece is rotated when the shaft is rotated in the shaft hole. It does not rotate with the rotation of the shaft. Therefore, under the tight fitting pressure, the shaft can be rotated to any angle without slipping off, which is another object of the present invention.

依本新型之轉軸扭力構造的改良，該多角形扭力彈片之缺口兩端亦可形成向外凸出的凸緣部，以利用其凸緣部嵌入軸孔的固定部，使軸桿於軸孔內轉動時，扭力彈片不會隨著軸桿之轉動而轉動，為本新型之又一目的。 According to the improvement of the rotating shaft structure of the present invention, the notched ends of the polygonal torsion spring piece can also form an outwardly protruding flange portion, so that the flange portion is inserted into the fixing portion of the shaft hole to make the shaft rod in the shaft hole. When the inner rotation is performed, the torsion elastic piece does not rotate with the rotation of the shaft, which is another object of the novel.

為便 貴審查委員能對本新型之目的、形狀、構造裝置特徵及其功效，做更進一步之認識與瞭解，茲舉 實施例配合圖式，詳細說明如下： For your valuable review, you can further understand and understand the purpose, shape, structure and function of this new model. The embodiment is described in detail with the following figures:

100‧‧‧軸桿 100‧‧‧ shaft

101‧‧‧缺槽 101‧‧‧ Missing slot

200‧‧‧抵持件 200‧‧‧Resistance

201‧‧‧抵持部 201‧‧‧Resistance Department

300‧‧‧軸管 300‧‧‧ shaft tube

301‧‧‧連接部 301‧‧‧Connecting Department

302‧‧‧軸孔 302‧‧‧Axis hole

3021‧‧‧孔壁 3021‧‧‧ hole wall

3022‧‧‧固定部 3022‧‧‧Fixed Department

3022A‧‧‧溝槽 3022A‧‧‧ trench

3022B‧‧‧介面層 3022B‧‧‧Interface

400‧‧‧轉軸 400‧‧‧ shaft

401‧‧‧連接部 401‧‧‧Connecting Department

402‧‧‧軸桿 402‧‧‧ shaft

500、600、700、800、901、902、903‧‧‧扭力彈片 500, 600, 700, 800, 901, 902, 903‧‧‧ Torsional shrapnel

501‧‧‧缺口 501‧‧‧ gap

50、60‧‧‧空隙 50, 60‧‧‧ gap

5A、5B‧‧‧角端 5A, 5B‧‧‧ corner

51、52、53、54、55‧‧‧轉角部 51, 52, 53, 54, 55‧ ‧ corners

6A、6B、7A、7B、92A、92B‧‧‧凸緣部 6A, 6B, 7A, 7B, 92A, 92B‧‧‧Flange

81‧‧‧弧形凹槽 81‧‧‧Arc groove

91A、91B‧‧‧斜尖角端 91A, 91B‧‧‧ oblique tip end

9031、9032、9033、9034、9035、9036、9037‧‧‧尖角狀轉角部 9031, 9032, 9033, 9034, 9035, 9036, 9037‧‧‧ pointed corners

第1圖為習見中華民國專利公告第M388814號新型專利案之結構表示圖。 The first picture shows the structure of the new patent case of the Republic of China Patent Announcement No. M388814.

第2圖為本新型轉軸扭力構造的改良之立體分解圖。 Fig. 2 is an exploded perspective view showing the modification of the new type of shaft torque structure.

第3圖為本新型轉軸扭力構造的改良之扭力彈片平面圖。 Figure 3 is a plan view of the improved torsion spring shrapnel of the new shaft torque structure.

第4A圖為本新型轉軸扭力構造的改良之軸孔內壁一實施例的剖面放大示意圖。 Fig. 4A is an enlarged cross-sectional view showing an embodiment of the improved inner wall of the shaft hole of the novel rotating shaft torque structure.

第4B圖為本新型轉軸扭力構造的改良之軸孔內壁另一實施例的剖面放大示意圖。 Fig. 4B is an enlarged cross-sectional view showing another embodiment of the modified inner wall of the shaft hole of the novel rotating shaft torque structure.

第5圖為本新型轉軸扭力構造的改良之組合實施剖面示意圖。 Fig. 5 is a schematic cross-sectional view showing an improved combination of the new rotating shaft torque structure.

第6圖為本新型轉軸扭力構造的改良之扭力彈片的第二實施例平面圖。 Fig. 6 is a plan view showing a second embodiment of the improved torsion spring of the novel hinge torque structure.

第7圖為本新型轉軸扭力構造的改良之扭力彈片的第三實施例平面圖。 Fig. 7 is a plan view showing a third embodiment of the improved torsion spring of the novel hinge torque structure.

第8圖為本新型轉軸扭力構造的改良之扭力彈片的第四實施例平面圖。 Figure 8 is a plan view showing a fourth embodiment of the improved torsion spring of the novel hinge torque structure.

第9圖為本新型轉軸扭力構造的改良之扭力彈片的第五實施例平面圖。 Figure 9 is a plan view showing a fifth embodiment of the improved torsion spring of the novel hinge torque structure.

第10圖為本新型轉軸扭力構造的改良之扭力彈片的第六實施例平面圖。 Fig. 10 is a plan view showing a sixth embodiment of the improved torsion spring of the novel rotary shaft torque structure.

第11圖為本新型轉軸扭力構造的改良之扭力彈片的第七實施例平面圖。 Figure 11 is a plan view showing a seventh embodiment of the improved torsion spring of the novel hinge torque structure.

本新型之「轉軸扭力構造的改良」，請參閱第2、3圖所示，係包括有：一軸管300和一轉軸400；其中，所述軸管300，其一端設有一連接部301，連接部301上設有鎖孔，以供與行動電話、筆記型電腦等電子產品之主機體組接，其另一端設一軸孔302，軸孔302為圓形孔；所述轉軸400，其一端亦設有一連接部401，連接部401上設有若干鎖孔，以供與主機體的蓋體相接，使蓋體得於主機體上作相對蓋合及定位動作，其另一端設有一可供穿入軸管之軸孔302的軸桿402。 The "improvement of the rotating shaft torque structure" of the present invention, as shown in Figures 2 and 3, includes: a shaft tube 300 and a rotating shaft 400; wherein the shaft tube 300 has a connecting portion 301 at one end thereof, and is connected. The portion 301 is provided with a keyhole for being connected to a main body of an electronic product such as a mobile phone or a notebook computer, and the other end is provided with a shaft hole 302, and the shaft hole 302 is a circular hole; the rotating shaft 400 has one end A connecting portion 401 is disposed, and the connecting portion 401 is provided with a plurality of locking holes for contacting the cover body of the main body, so that the cover body is relatively closed and positioned for the main body, and the other end is provided with a A shaft 402 that is threaded into the shaft hole 302 of the shaft tube.

如圖所示，軸管300和轉軸400之間又設有一扭力彈片500，該扭力彈片500為環狀多角形彈片(圖式為六角形，亦可為其他多角形狀)，其一端設一缺口501，缺口501的兩端各為一角端5A、5B；並且，設有多數轉角部51、52、53、54、55。該扭力彈片500的片體厚度係略大於軸桿402和軸孔302之間的間隙，使軸桿402***軸孔302時，藉著扭力彈片500介於其間，軸桿402和軸孔302為緊配合轉動組接。 As shown in the figure, a torsion elastic piece 500 is further disposed between the shaft tube 300 and the rotating shaft 400. The torsion elastic piece 500 is a circular polygonal elastic piece (the hexagonal shape or other polygonal shape), and a notch is provided at one end thereof. 501, both ends of the notch 501 are a corner end 5A, 5B; and a plurality of corner portions 51, 52, 53, 54, 55 are provided. The thickness of the torsion spring 500 is slightly larger than the gap between the shaft 402 and the shaft hole 302. When the shaft 402 is inserted into the shaft hole 302, the torsion elastic piece 500 is interposed therebetween, and the shaft 402 and the shaft hole 302 are Tightly cooperate with the rotating assembly.

如第4A圖所示，軸管300之軸孔302的孔壁3021係設有一固定部3022，該固定部3022為可供扭力彈片500之角端5A、5B或轉角部51、52、53、54、55得以嵌入的溝槽3022A，該溝槽3022A可以為一個或一個以上之多數個。 As shown in FIG. 4A, the hole wall 3021 of the shaft hole 302 of the shaft tube 300 is provided with a fixing portion 3022 which is a corner end 5A, 5B or a corner portion 51, 52, 53 of the torsion spring 500. The grooves 5522A are embedded in 54, 55, and the grooves 3022A may be one or more.

如第4B圖所示，設於軸管300之軸孔302的固定部亦可為可供扭力彈片500之角端5A、5B或轉角部51、52、53、54、55於被受力壓迫時得以嵌入的介面層3022B，藉由該介面層3022B的材料特性(例如材質較軟)，使扭力彈片500之角端5A、5B或轉角部51、52、53、54、55的尖端於被受力壓迫時得以嵌入。 As shown in FIG. 4B, the fixing portion of the shaft hole 302 of the shaft tube 300 may be pressed by the corner ends 5A, 5B or the corner portions 51, 52, 53, 54, 55 of the torsion spring 500. When the interface layer 3022B is embedded, the tip end of the corner end 5A, 5B or the corner portions 51, 52, 53, 54, 55 of the torsion spring piece 500 is made by the material property of the interface layer 3022B (for example, the material is soft). Embedded when stressed.

因此，如第5圖所示，藉由在軸孔302的孔壁3021設置固定部3022，扭力彈片500被軸桿402夾設於軸孔302內時即得為固定不轉動狀態，由於其不會隨著軸桿402的轉動而轉動，當軸桿402在軸孔302內轉動時，即可透過扭力彈片500之片體在軸孔內為彈性變形，以及形成不等變化的空隙50、60，對軸桿402形成適當壓制，進而達到軸桿402轉動於任一角度均可確實定位而不滑脫。 Therefore, as shown in FIG. 5, by providing the fixing portion 3022 in the hole wall 3021 of the shaft hole 302, the torsion elastic piece 500 is fixed in the shaft hole 302 by the shaft 402, and is not fixed. The shaft 402 rotates with the rotation of the shaft 402. When the shaft 402 rotates in the shaft hole 302, the sheet that can pass through the torsion spring 500 is elastically deformed in the shaft hole, and the gaps 50, 60 are formed to change unequally. The shaft 402 is appropriately pressed, so that the shaft 402 can be rotated at any angle to be surely positioned without slipping.

本新型之「轉軸扭力構造的改良」，其扭力彈片又可以有多種實施例。如第6圖所示之扭力彈片600，可以在其缺口兩端各形成一向外凸出的凸緣部6A、6B，其凸緣部6A、6B可為徑向凸出者。如第7圖所示之扭力彈片 700，其凸緣部7A、7B可為徑向外翻者。第8圖所示之扭力彈片800，其彈片體內面得設置得與軸桿貼合之弧形凹槽81，而可緊貼於軸桿的外周。第9圖所示之扭力彈片901，其缺口的兩端得為斜尖角端91A、91B。第10圖所示之扭力彈片902，係八角形之多角形彈片，其凸緣部92A、92B兩端為徑向外翻者。或者，如第11圖所示之扭力彈片903，其各個轉角部可為尖角狀轉角部9031、9032、9033、9034、9035、9036、9037，使其於受力後得嵌入軸孔內之固定部。 The "improvement of the shaft torque structure" of the present invention has various embodiments of the torsion spring piece. The torsion elastic piece 600 as shown in Fig. 6 may be formed with outwardly projecting flange portions 6A, 6B at both ends of the notch, and the flange portions 6A, 6B may be radially projecting. Torque shrapnel as shown in Figure 7 700, the flange portions 7A, 7B may be radially outwardly turned. The torsion elastic piece 800 shown in Fig. 8 has a curved groove 81 which is disposed on the inner surface of the elastic piece and is attached to the shaft, and can be closely attached to the outer circumference of the shaft. The torsion elastic piece 901 shown in Fig. 9 has tapered ends 91A and 91B at both ends of the notch. The torsion elastic piece 902 shown in Fig. 10 is an octagonal polygonal elastic piece whose both ends of the flange portions 92A and 92B are radially everted. Alternatively, as shown in FIG. 11, the torsion elastic piece 903 may have angled corner portions 9031, 9032, 9033, 9034, 9035, 9036, 9037, which are inserted into the shaft hole after being subjected to force. Fixed part.

本新型上述之轉軸扭力構造的改良，藉由多角形扭力彈片的設置，確能提供容易加工的圓柱形軸孔和軸桿得以快速組裝，又得轉動定位，結構簡化，成本也可大幅降低。 The improvement of the above-mentioned rotating shaft torsion structure can ensure that the cylindrical shaft hole and the shaft rod which are easy to process can be assembled quickly by the arrangement of the polygonal torsion elastic piece, and the rotation positioning can be realized, the structure is simplified, and the cost can be greatly reduced.

綜合以上所述，本新型之轉軸扭力構造的改良，確實具有前所未有之創新構造，其既未見於任何刊物，且市面上亦未見有任何類似的產品，是以，其具有新穎性應無疑慮。另外，本新型所具有之獨特特徵以及功能遠非習用所可比擬，所以其確實比習用更具有進步性，而符合我國專利法有關新型專利之申請要件之規定，乃依法提起專利申請。 In summary, the improvement of the rotating shaft structure of the present invention has an unprecedented innovative structure, which has not been seen in any publication, and there is no similar product on the market, so that its novelty should be undoubtedly considered. . In addition, the unique features and functions of this new model are far from comparable to the conventional ones, so it is indeed more progressive than the customary ones, and the patent application is in accordance with the provisions of the application requirements for new patents in the Chinese Patent Law.

以上所述，僅為本新型較佳具體實施例，惟本新型之構造特徵並不侷限於此，任何熟悉該項技藝者在本新型領域內，可輕易思及之變化或修飾，皆可涵蓋在以下 本案之專利範圍。 The above description is only a preferred embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any change or modification that can be easily considered by those skilled in the art can be covered. In the following The scope of the patent in this case.

302‧‧‧軸孔 302‧‧‧Axis hole

3022‧‧‧固定部 3022‧‧‧Fixed Department

402‧‧‧軸桿 402‧‧‧ shaft

500‧‧‧扭力彈片 500‧‧‧Torque shrapnel

50、60‧‧‧空隙 50, 60‧‧‧ gap

Claims (7)

一種轉軸扭力構造的改良，包括有一軸管和一轉軸；其中所述軸管的一端設有一圓形軸孔；所述轉軸的一端設有一可供穿入軸管之軸孔的軸桿；其特徵在於：在所述軸管之圓形軸孔和轉軸之軸桿之間設有一環狀扭力彈片，該扭力彈片具有多數個轉角部，其片體厚度略大於軸桿和軸孔之間的間隙；而且，在軸孔的孔壁上設有使扭力彈片被軸桿迫緊後得固定不轉動的固定部；藉此，因為扭力彈片在軸孔內為固定不轉動，當軸桿在軸孔內轉動時，即可靠著扭力彈片之片體的變形壓制，達到軸桿在軸孔內轉動至任一角度均可定位而不滑脫者。 An improvement of a rotating shaft torque structure includes a shaft tube and a rotating shaft; wherein one end of the shaft tube is provided with a circular shaft hole; one end of the rotating shaft is provided with a shaft rod for inserting a shaft hole of the shaft tube; The utility model is characterized in that: an annular torsion elastic piece is arranged between the circular shaft hole of the shaft tube and the shaft shaft of the rotating shaft, the torsion elastic piece has a plurality of corner portions, and the thickness of the piece body is slightly larger than between the shaft rod and the shaft hole a gap; and a fixing portion for fixing the torsion elastic piece by the shaft after being tightened by the shaft is provided on the hole wall of the shaft hole; thereby, since the torsion elastic piece is fixed in the shaft hole and does not rotate, when the shaft is on the shaft When the hole rotates, the deformation of the piece of the torsion spring piece is reliably suppressed, and the shaft can be rotated in the shaft hole to be positioned at any angle without being slipped. 如申請專利範圍第1項所述之轉軸扭力構造的改良，其中扭力彈片具有缺口，缺口的兩端為角端而可嵌入軸孔的固定部，使扭力彈片在軸孔內為固定不轉動。 The improvement of the rotating shaft torque structure according to the first aspect of the patent application, wherein the torsion elastic piece has a notch, and the two ends of the notch are angular ends and can be embedded in the fixing portion of the shaft hole, so that the torsion elastic piece is fixed and does not rotate in the shaft hole. 如申請專利範圍第2項所述之轉軸扭力構造的改良，其中扭力彈片的轉角部可為尖角狀而可嵌入軸孔的固定部，使扭力彈片在軸孔內為固定不轉動。 The improvement of the rotating shaft torque structure according to the second aspect of the patent application, wherein the corner portion of the torsion spring piece can be a pointed corner and can be inserted into the fixing portion of the shaft hole, so that the torsion elastic piece is fixed and does not rotate in the shaft hole. 如申請專利範圍第3項所述之轉軸扭力構造的改良，其中所述軸孔之固定部為可供扭力彈片之缺口的角端或其轉角部得以嵌入的溝槽或介面層。 The improvement of the rotating shaft torque structure according to claim 3, wherein the fixing portion of the shaft hole is a groove or an interface layer into which a corner end of a notched portion of the torsion spring piece or a corner portion thereof can be fitted. 如申請專利範圍第4項所述之轉軸扭力構造的改良，其中所述溝槽可為一個或一個以上之多數個。 The improvement of the hinge torque structure of claim 4, wherein the groove may be one or more. 如申請專利範圍第3項所述之轉軸扭力構造的改良，其 中扭力彈片的缺口兩端亦可各形成一向外凸出之凸緣部，該凸緣部可為徑向凸出、徑向外翻，而得以嵌入軸孔之孔壁表面的固定部。 An improvement of the torsion structure of the shaft as described in claim 3 of the patent application, The notched ends of the middle torsion spring pieces may also each form an outwardly projecting flange portion which is radially convex and radially outwardly turned to be fitted into the fixing portion of the hole wall surface of the shaft hole. 如申請專利範圍第6項所述之轉軸扭力構造的改良，其中扭力彈片得為六角形、八角形或其他多角形彈片。 The improvement of the rotating shaft torque structure described in claim 6 is that the torsion elastic piece is a hexagonal, octagonal or other polygonal elastic piece.