1378706 101年01月13日修正替换頁 、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種鉸鏈結構，尤其係關於一種用於行動 電話、PDA (Personal Digital Assistant，個人數 位助理）等攜帶型電子裝置的鉸鏈結構。 【先前技術】 [0002] 目前，市場上所銷售之攜帶型電子裝置，如行動電話、 PDA等，多爲折疊式結構，即包括蓋體和本體，採用鉸鏈 將蓋體和本體可旋轉的鉸接在一起。 [0003] 業界較常採用的一種鉸鏈結構爲扭簧式，即採用扭轉彈 簧爲主要元件，達成蓋體和本體之一定開合功能。美國. 專利第6, 493, 542號所揭示之鉸鏈（請參照第一圖所示 )即爲此類型之鉸鏈結構。該鉸鏈包括殼體91、彈簧92 及主轴93。殼體91爲一端開口之中空圓柱體，其一端設 端部912，用以與行動電話蓋體配合，殼體91内在封閉端 開設帶内螺紋之孔914。彈簧92兩端向外延伸出兩卡持端 $ 922、924。主軸93—端設具外螺紋之固定端932，另一 端設凸緣部934。彈簧92容置於殼體91内，卡持端922、 924分別由殼體91兩端伸出，卡持端922與殼體91配合， 另一卡持端924與行動電話本體配合。主軸93插入彈簧92 内，固定端932旋入殼體91之孔914内，該鉸鏈結構即裝 配完成。裝入行動電話殼體後，端部912與行動電話蓋體 配合，卡持端924與行動電話本體配合。行動電話蓋體閉 合時，彈簧92具一定預扭力，蓋體通過其他卡合結構， 如磁鐵，吸附或卡合於本體。需使用行動電話時，將上 09313461(^單编號 A〇101 第4頁/共18頁 1013016922-0 1378706 101年01月13日修正替換頁 述卡合結構釋放，蓋體即在彈簧92之扭力作用下開啓。 上述鉸鏈結構結構簡單，操作方便。然其缺點在於，彈 簧92之卡持端924與行動電話本體配合，需在本體上設置 特殊結構，因而通用性較差。整個鉸鏈結構所受扭力由 端部912和卡持端924承受，而卡持端924體積很小，則 要求該卡持端924具較大強度。該鉸鏈結構功能較爲單一 。採用此種鉸鏈結構之行動電話，蓋體和本體打開的角 度通常由蓋體與本體之結構限定，而蓋體開啓時之衝擊 力也由蓋體與本體承擔，易對其産生磨損，因而影響行 動電話之壽命。 · 【發明内容】 [0004] 本發明之目之在於提供一種通用性強、由其自身限定張 開及閉合角度且功能多樣之鉸鏈結構。 [0005] 為了實現本發明之目的，本發明提供一種鉸鏈結構，包 括主軸、扭簧、殼體、固定片及銷，主軸一端設置卡固 端，殼體爲一端開口之中空柱體，殼體上開設滑槽，外 側凸設凸肋，凸肋上開設兩限位槽；固定片設有容納部 ，該容納部容置於殼體之限位槽内，扭簧套設於主軸上 ，和主軸容置於殼體内，主轴卡固端露出於殼體外，扭 簧一端與該容納部結合，另一端與主轴結合，銷之一端 固設於主軸，另一端伸入滑槽中，並可於其中滑動。 [0006] 相較習知技術，本發明之鉸鏈結構通過主軸卡固端及殼 體和行動電話蓋體及本體配合，通用性強；通過殼體滑 槽限定主軸轉過之角度，從而限定行動電話蓋體張開及 閉合角度，不需通過行動電話殼體限定，因而在行動電 09313461(^單編號删1 第5頁/共18頁 1013016922-0 1378706 101年01月13日 [0007] 話開啓時不會撞擊和磨損行動電話殼體；通過對殼體滑 槽形狀做出變化，可使該鉸鏈結構實現不同之功能。 【實施方式】 本發明鉸鏈結構用於具本體和蓋體之折疊式攜帶型電子 裝置，在本實施例中以行動電話爲例。 ‘ _ [0008] 請參照第二圖及第三圖所示，本發明鉸鏈結構包括主轴j 、兩個扭簧2、抵持柱3、壓簧4、殼體5、兩個固定片6以 及兩個銷7。 • [0009] 主軸1—端設凸緣12及卡固端14，其主體之中部開設由凸 緣12貫通至另一端之開槽16，開槽16將主軸丨之主體均分 爲兩個分叉部18，在每一分又部18上開一通孔182，兩通 孔182之位置不對應，於每一分又部18上進一步開設與設 於另—分叉部18上之通孔182對應之卡位孔184 ,該卡位 孔184爲非貫通之扎。 [0010] 兩個扭簧2結構相同，均爲柱狀彈簧，其一端設向其軸心 • 延伸之插入端22，另一端設沿其軸線方向延伸之卡持端 24。扭簧2套設於主軸1上，插入端22插入主轴1之開槽 16内。 [0011] 抵持杈3爲一端開口之中空圓柱體，由其内延伸出一定位 柱32。主轴1之一端插入抵持柱3之開口中，定位柱μ插 入主軸1之開槽16中》 [0012] 壓簧4爲柱狀彈簧，其一端抵持抵持柱3。 [0013] 殼體5爲一端開口另一端封閉之中空圓柱體，其外側凸設 沿轴向延伸之兩個凸肋52，兩凸肋52在殼體5外側爲180 09313461#單编號AQ1Q1 第6頁/共18頁 1378706 101年01月13日後正餘頁 度分佈。每一凸肋5 2上開設沿轴向延伸之非貫通之方形 孔54 ’方形孔54内進一步開設沿轴向延伸之貫通之限位 槽542 ’兩方形孔54與兩限位槽542之位置不對應。殼體 5上進一步開設兩個貫通之滑槽56，該滑槽56所在之平面 與殼體5之軸線垂直。兩滑槽56之位置不對應。由滑槽56 一端到另一端相對殼體5之軸心線轉過約ι60度《壓簧4、 抵持柱3、杻簧2及主轴1之分又部18均容置於殼體5内， 壓簧4之一端抵持殼體5之内壁。 [0014] 固定片δ由矩形金屬片彎折而成，其中部彎折成半圓柱狀 之容納部62 ’該容納部62容置於殼體5之限位槽542内。 罐 [0015] 銷7爲圓柱體，其穿過主轴1分叉部18之通孔182，一端容 置於分又部18之卡位孔184内，另一端伸入殼趙5之滑槽 56中0 [0016] 裝配時，先將壓簧4放入殼體5内，再將主軸1之兩個分又 部18依次插入兩個扭簧2和抵持枉·3，使扭簧2之插入端22 及抵持柱3之定位柱32均插入主軸1之開槽16中，壓觸壓 簧4，使其具一定預壓力。將上述裝好之主軸丨、扭簧2及 抵持柱3放入殼體5内，使兩扭簧2之卡持端24分別從殼體 5之兩個限位槽542露出，將固定片6從外侧放入殼體5之 方形孔54，將其容納部62伸入限位槽542，將固定片6沿 方形孔54滑動至適當位置，使扭簧2之卡持端24插入容納 部62。最後’調整主軸1相對殼體5之角度，使其通孔182 對準殼體5之滑槽56 ’將銷7穿過滑槽56及通孔182，並 插入卡位孔184中’銷7與卡位孔184係干涉配合，因而銷 7固定於主軸1上。這樣’整個鉸鏈結構就裝配成一個整 09313461(^單編號 Α0101 1013016922-0 第7頁/共18頁 U/8706 [0017] 11〇1年01月13日修正替換頁 體，如第三圖所示。 將上述裝配好之鉸鏈結構置入行動電話本體和蓋體之連 接處’使主軸1之卡固端14與蓋體配合，殼體5與本體配 合’並使蓋體相對本體閉合時，扭簧2具一定預扭力。當 行動電話處於非使用狀態，其蓋體相對本體閉合時，通 過其他卡合機構或磁性裝置將蓋體卡合或吸附於本體， 由於扭簧2具預扭力，鉸鏈結構之銷7處於殼體5之滑槽56 之一端，此時，鉸鏈結構處於不穩定狀態。當需使用行 • 動電話時，釋放上述卡合機構或磁性裝置，使蓋體釋放 ’由於扭簧2具一定預扭力，而扭簧2之卡持端24與殼體5 配合，相對本體不動，其插入端22即帶動主軸1及行動電 話蓋體轉動’同時，銷7在滑槽56中滑動。當主軸1轉過 約160度，銷7滑到滑槽56之另一端，主轴1即停止轉動， 行動電話蓋體達到打開位置，此時鉸鍵結構處於穩定狀 態。需閉合蓋體時’對蓋體施力，蓋體帶動主軸1抵抗扭 簧2之扭力轉動，銷7同時於滑槽56中滑動，直至蓋體回 • 到閉合位置，重新被卡合機構或磁性裝置卡合或吸附， 蓋體即關閉。在此過程中，壓簧4之作用在於推播主軸1 靠向殼體5—端，從而使銷7靠向殼體5之滑槽56—側，這 樣就使得主轴1之運動穩定，不會在殼體5中産生不必要 之晃動。 [0018] 本發明之第二實施例如第四圖所示，該鉸鏈結構和第一 實施例申之鉸鏈結構大致相同，不同之處在於，殼體5之 滑槽57所在之平面非爲與殼體5之抽線垂直，而係與其形 成一小於90度之角度。其餘元件結構及裝配過程均與第 _461(P編號 A〇101 第8頁/共18頁 1013016922-0 1378706 101年01月13日修正替換百 一實施例相同。這樣，在適用此種鉸鏈結構之行動電話 蓋體開啓時，主軸1即是在扭簧2及壓簧4之共同作用下轉 動，因而具有較大轉動力，較第一實施例之鉸鏈結構性 能更好。 [0019] 本發明之第三實施例如第五圖所示，該鉸鏈結構與第一 實施例中的鉸鏈結構大致相同，不同之處在於，殼體5之 滑槽58進一步包括第一端部582、凹部584、凸部586及 第二端部588。其餘元件結構及裝配過程均與第一實施例 相同。適用此種鉸鏈結構之行動電話蓋體閉合時，銷7處 於第一端部582。需使用行動電話時，釋放行動電話之卡 合機構或磁性裝置，使蓋體釋放，主軸1在扭簧2及壓簧4 之共同作用下産生轉動，由於凸部586高於凹部584,銷7 滑至凹部584即被凸部586阻擋。此時，蓋體僅開啓一較 小角.度，再對行動電話蓋體施加一較小之作用力，使銷7 越過凸部586，主轴1即可在扭簧2及壓簧4之作用下進一 步轉動，直到銷7滑至滑槽58之第二端部588，蓋體即打 開。採用此種結構之目的在於，使用者在開啓折疊式行 動電話時，通常握持行動電話本體，如行動電話蓋體重 量較大，則在開啓時，蓋體會産生較大衝力，而使行動 電話易於從使用者手中滑脫，而採用第三實施例中之鉸 鏈結構，在開啓蓋體時，蓋體先開啓一較小角度，衝擊 力很小，不會引起行動電話滑脫，再對蓋體施加一較小 力，即可開啓蓋體。另外，通過改變凹部584及凸部586 之位置和數量也可實現行動電話蓋體相對本體具多個停 留位置之目的，這是普通的扭簧式鉸鏈結構無法實現的 09313461(P編號 A0101 第9頁/共18頁 1013016922-0 1378706 101年.01月13日 [0020] 可以理解的，本發明鉸鏈結構也可不設壓簧4及抵持柱3 ’扭簧2之兩端也可採用其他方式與殼體5及主軸1配合。 [0021] 综上所述，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 热悉本案技藝之人士，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内。 【圖式簡單說明】 • [0022]第一圖係習知之鉸鏈結構之立體分解圖。 [0023] 第二圖係本發明鉸鍵結構之立體分解圖。 [0024] 第三圖係本發明鉸鏈結構之組襄圖。 [0025] 第四圖係本發明鉸鏈結構第二實施例之組裝圖。 [0026] 第五圖係本發明鉸鏈結構第三實施例之組裝圖。 【主要元件符號說明】 [0027] 主轴：1 [0028] 凸緣：12 [0029] 卡固端：14 [0030] 開槽：16 [0031] 分又部：18 [0032] 通孔：182 [0033] 卡位孔：184 09313461(f·單编號 A0101 第10頁/共18頁 1013016922-0 1378706 101年01月13日修正替換頁 [0034] 扭簧：2 [0035] 插入端：22 [0036] 卡持端：24 [0037] 抵持柱：3 [0038] 定位柱：32 [0039] 壓簧：4 [0040] 殼體：5 [0041] 凸肋：52 [0042] 方形孔：54 [0043] 限位槽：542 [0044] 滑槽：56、57、58 [0045] 第一端部：582 [0046] 凹部：584 [0047] 凸部：586 [0048] 第二端部：588 · [0049] 固定片：6 [0050] 容納部：62 [0051] 銷：7 09313461#單編號 A〇101 第.11頁/共18頁 1013016922-01378706 Modified on January 13, 2011, the following description of the invention: [0001] The present invention relates to a hinge structure, and more particularly to a mobile phone, PDA (Personal Digital Assistant, personal digital assistant) ) A hinge structure of a portable electronic device. [Prior Art] [0002] At present, portable electronic devices sold on the market, such as mobile phones, PDAs, etc., are mostly folded structures, that is, including a cover body and a body, and hinges are used to articulate the cover body and the body. Together. [0003] A hinge structure commonly used in the industry is a torsion spring type, that is, a torsion spring is used as a main component to achieve a certain opening and closing function of the cover body and the body. The hinge disclosed in U.S. Patent No. 6,493,542 (see the first figure) is a hinge structure of this type. The hinge includes a housing 91, a spring 92, and a main shaft 93. The housing 91 is a hollow cylinder which is open at one end, and has an end portion 912 at one end for engaging with the cover of the mobile phone, and an inner hole 914 is formed in the casing 91 at the closed end. The two ends of the spring 92 extend outwardly from the two holding ends $ 922, 924. The main shaft 93 is provided with a fixed end 932 having an external thread, and the other end is provided with a flange portion 934. The springs 92 are received in the housing 91. The holding ends 922 and 924 are respectively extended from the two ends of the housing 91. The holding end 922 is engaged with the housing 91, and the other holding end 924 is engaged with the mobile phone body. The main shaft 93 is inserted into the spring 92, and the fixed end 932 is screwed into the hole 914 of the housing 91, and the hinge structure is assembled. After being loaded into the mobile phone casing, the end portion 912 cooperates with the mobile phone cover body, and the catching end 924 cooperates with the mobile phone body. When the mobile phone cover is closed, the spring 92 has a certain pre-torque force, and the cover body is adsorbed or engaged with the body through other engaging structures, such as magnets. When you need to use a mobile phone, you will be released on the 09313461 (^单号号 A〇101 page 4/18 pages 1013016922-0 1378706 101 January 101 revision replacement page snap structure, the cover is in the spring 92 The above-mentioned hinge structure is simple in structure and convenient to operate. However, the disadvantage is that the holding end 924 of the spring 92 cooperates with the body of the mobile phone, and a special structure is required on the body, so that the versatility is poor. The torsion is received by the end portion 912 and the holding end 924, and the holding end 924 is small in volume, and the holding end 924 is required to have a large strength. The hinge structure has a relatively simple function. The mobile phone adopting the hinge structure, The angle at which the cover body and the body are opened is generally defined by the structure of the cover body and the body, and the impact force when the cover body is opened is also borne by the cover body and the body, which is easy to wear and affect the life of the mobile phone. [0004] It is an object of the present invention to provide a hinge structure which is highly versatile, has its own opening and closing angles, and has various functions. [0005] In order to achieve the object of the present invention, The invention provides a hinge structure, which comprises a main shaft, a torsion spring, a casing, a fixing piece and a pin. One end of the main shaft is provided with a fixing end, and the casing is a hollow cylinder with one end open, a sliding groove is formed on the casing, and a convex rib is protruded on the outer side. Two limiting slots are formed on the ribs; the fixing piece is provided with a receiving portion, the receiving portion is received in the limiting slot of the housing, the torsion spring is sleeved on the main shaft, and the main shaft is accommodated in the housing, and the main shaft is clamped The end is exposed outside the casing, one end of the torsion spring is combined with the receiving portion, and the other end is coupled with the main shaft, one end of the pin is fixed to the main shaft, and the other end protrudes into the sliding groove and can slide therein. [0006] The hinge structure of the present invention is versatile by the engagement of the spindle clamping end and the housing and the mobile phone cover body and the body; the angle of the spindle rotation is defined by the housing chute, thereby limiting the opening and closing of the mobile phone cover body. The angle does not need to be defined by the mobile phone housing, so it does not hit and wear when the mobile phone is opened in the mobile phone 09313461 (^单单页1 5/18 pages 1013016922-0 1378706 101 January 101 [0007] Mobile phone housing; through the housing The hinge shape is changed to enable the hinge structure to achieve different functions. [Embodiment] The hinge structure of the present invention is used for a folding portable electronic device having a body and a cover. In this embodiment, a mobile phone is taken as an example. Referring to the second and third figures, the hinge structure of the present invention comprises a main shaft j, two torsion springs 2, a resisting post 3, a compression spring 4, a housing 5, two fixing pieces 6 and Two pins 7. • [0009] The main shaft 1 is provided with a flange 12 and a fastening end 14 , and a central portion of the main body is provided with a slot 16 extending from the flange 12 to the other end, and the slot 16 is used for the main body of the main shaft It is divided into two branching portions 18, and a through hole 182 is opened in each of the divided portions 18. The positions of the two through holes 182 do not correspond to each other, and are further opened and disposed on the branching portion 18 The upper through hole 182 corresponds to the card hole 184, and the card hole 184 is non-through. [0010] The two torsion springs 2 are identical in structure, and are all columnar springs, one end of which is provided with an insertion end 22 extending toward its axis, and the other end is provided with a holding end 24 extending in the axial direction thereof. The torsion spring 2 is sleeved on the main shaft 1, and the insertion end 22 is inserted into the slot 16 of the main shaft 1. [0011] The resisting jaw 3 is a hollow cylinder that is open at one end, and a positioning post 32 extends therefrom. One end of the main shaft 1 is inserted into the opening of the abutting post 3, and the positioning post μ is inserted into the slot 16 of the main shaft 1 [0012] The compression spring 4 is a columnar spring, one end of which abuts against the abutting post 3. [0013] The housing 5 is a hollow cylinder closed at one end and closed at the other end, and two ribs 52 extending in the axial direction are protruded from the outer side of the housing 5, and the two ribs 52 are 180 09313461# single number AQ1Q1 on the outer side of the housing 5 6 pages / a total of 18 pages 1378706 After the 13th of January, 101, the remaining page degree distribution. Each of the ribs 5 2 defines a non-penetrating square hole 54 extending in the axial direction. The square hole 54 further defines a position of the limiting groove 542 ′ extending in the axial direction and the position of the two limiting holes 542. Does not correspond. Further, two through slots 56 are formed in the housing 5, and the plane of the slots 56 is perpendicular to the axis of the housing 5. The positions of the two chutes 56 do not correspond. From one end of the chute 56 to the other end, the axis line of the housing 5 is rotated by about ι 60 degrees. The pressure spring 4, the abutting column 3, the spring 2, and the main shaft 1 are accommodated in the housing 5. One end of the compression spring 4 abuts against the inner wall of the casing 5. [0014] The fixing piece δ is formed by bending a rectangular metal piece, and the middle portion is bent into a semi-cylindrical receiving portion 62'. The receiving portion 62 is received in the limiting groove 542 of the housing 5. The canister [0015] is a cylindrical body which passes through the through hole 182 of the bifurcation portion 18 of the main shaft 1, one end of which is received in the card hole 184 of the sub-portion 18, and the other end of which is inserted into the chute 56 of the casing Zhao 5 [0016] When assembling, the compression spring 4 is first placed in the casing 5, and then the two divided portions 18 of the main shaft 1 are sequentially inserted into the two torsion springs 2 and the 枉·3, so that the torsion spring 2 The insertion end 22 and the positioning post 32 of the abutting post 3 are inserted into the slot 16 of the main shaft 1 to press the compression spring 4 to have a certain pre-pressure. The above-mentioned installed spindle 丨, torsion spring 2 and abutment post 3 are placed in the housing 5, so that the latching ends 24 of the torsion springs 2 are respectively exposed from the two limiting slots 542 of the housing 5, and the fixing pieces are 6 is inserted into the square hole 54 of the housing 5 from the outside, and the receiving portion 62 is inserted into the limiting slot 542, and the fixing piece 6 is slid along the square hole 54 to a proper position, so that the locking end 24 of the torsion spring 2 is inserted into the receiving portion. 62. Finally, the angle of the main shaft 1 relative to the housing 5 is adjusted such that the through hole 182 is aligned with the sliding groove 56 of the housing 5. The pin 7 is passed through the sliding groove 56 and the through hole 182, and inserted into the locking hole 184. The interference with the card slot 184 is such that the pin 7 is fixed to the spindle 1. Thus, the entire hinge structure is assembled into a whole 09313461 (^ single number Α0101 1013016922-0 page 7 / total 18 pages U / 8706 [0017] 11 〇 1 January 13 revision of the replacement page body, as shown in the third figure The above-mentioned assembled hinge structure is placed at the junction of the mobile phone body and the cover body to make the locking end 14 of the main shaft 1 engage with the cover body, and the housing 5 cooperates with the body to close the cover body to the body. The torsion spring 2 has a certain pre-torque force. When the mobile phone is in a non-use state, when the cover body is closed relative to the body, the cover body is engaged or adsorbed to the body by other engaging mechanisms or magnetic devices, since the torsion spring 2 has a pre-torsion force, The pin 7 of the hinge structure is at one end of the chute 56 of the housing 5. At this time, the hinge structure is in an unstable state. When the mobile phone is required, the above-mentioned engaging mechanism or magnetic device is released to release the cover. The torsion spring 2 has a certain pre-torsion force, and the clamping end 24 of the torsion spring 2 cooperates with the housing 5, and the opposite body does not move, and the insertion end 22 drives the main shaft 1 and the mobile phone cover body to rotate 'at the same time, the pin 7 is in the chute 56. Sliding in. When the spindle 1 turns about 160 degrees, 7 slides to the other end of the chute 56, the main shaft 1 stops rotating, and the mobile phone cover body reaches the open position, and the hinge key structure is in a stable state. When the cover body needs to be closed, the force is applied to the cover body, and the cover body drives the main shaft 1 Resisting the torsion of the torsion spring 2, the pin 7 slides in the chute 56 at the same time until the cover returns to the closed position, and is re-engaged or attracted by the engaging mechanism or the magnetic device, and the cover is closed. In the process, The function of the compression spring 4 is to push the spindle 1 to the end 5 of the housing, so that the pin 7 abuts against the side of the sliding groove 56 of the housing 5, so that the movement of the main shaft 1 is stable and does not occur in the housing 5. [0018] The second embodiment of the present invention, as shown in the fourth figure, is substantially the same as the hinge structure of the first embodiment, except that the chute 57 of the housing 5 is located. The plane is not perpendicular to the drawing line of the casing 5, but is formed at an angle of less than 90 degrees. The rest of the component structure and assembly process are the same as the _461 (P number A 〇 101 page 8 / 18 pages 1013016922- 0 1378706 Modified on January 13, 101, the same as the one hundred embodiment. When the mobile phone cover body to which the hinge structure is applied is opened, the main shaft 1 is rotated by the combined action of the torsion spring 2 and the compression spring 4, thereby having a large rotational force, which is more performance than the hinge structure of the first embodiment. [0019] The third embodiment of the present invention, as shown in the fifth figure, is substantially the same as the hinge structure of the first embodiment, except that the chute 58 of the housing 5 further includes a first end. The portion 582, the concave portion 584, the convex portion 586 and the second end portion 588. The remaining element structure and assembly process are the same as those of the first embodiment. When the mobile phone cover body suitable for such a hinge structure is closed, the pin 7 is at the first end portion. 582. When the mobile phone is required, the engaging mechanism or the magnetic device of the mobile phone is released to release the cover body, and the main shaft 1 rotates under the joint action of the torsion spring 2 and the compression spring 4, since the convex portion 586 is higher than the concave portion 584, the pin 7 Sliding to the recess 584 is blocked by the convex portion 586. At this time, the cover body only opens a small angle. Then, a small force is applied to the cover of the mobile phone, so that the pin 7 passes over the convex portion 586, and the main shaft 1 can act as the torsion spring 2 and the compression spring 4. Further rotation is continued until the pin 7 slides to the second end 588 of the chute 58 and the cover is opened. The purpose of adopting such a structure is that when the user opens the folding mobile phone, the mobile phone body is usually held. If the weight of the mobile phone cover body is large, the cover body generates a large force when the device is opened, and the mobile phone is made. It is easy to slip off from the user's hand, and with the hinge structure in the third embodiment, when the cover body is opened, the cover body first opens a small angle, the impact force is small, and the mobile phone does not slip off, and then the cover is closed. Apply a small force to the body to open the cover. In addition, by changing the position and the number of the concave portion 584 and the convex portion 586, the purpose of the mobile phone cover body having a plurality of rest positions relative to the body can be achieved, which is an 93313461 which cannot be realized by the ordinary torsion spring hinge structure (P No. A0101 No. 9) Page / Total 18 pages 1013016922-0 1378706 101. 01月13日 [0020] It can be understood that the hinge structure of the present invention can also be provided without the compression spring 4 and the resisting post 3 'the two ends of the torsion spring 2 can also be used in other ways In combination with the housing 5 and the main shaft 1. [0021] In summary, the present invention complies with the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the case is well known. The equivalent modifications or variations made by the skilled person in the spirit of the invention shall be included in the following patent application. [Simplified illustration] [0022] The first figure is a three-dimensional decomposition of the conventional hinge structure [0023] The second figure is a perspective exploded view of the hinge structure of the present invention. [0024] The third figure is a group diagram of the hinge structure of the present invention. [0025] The fourth figure is a second embodiment of the hinge structure of the present invention. Assembly diagram. [0026] Figure 5 is an assembled view of a third embodiment of the hinge structure of the present invention. [Main component symbol description] [0027] Spindle: 1 [0028] Flange: 12 [0029] Carding end: 14 [0030] Slotting: 16 [ 0031] Subsection: 18 [0032] Through hole: 182 [0033] Card slot: 184 09313461 (f·single number A0101 page 10/total 18 page 1013016922-0 1378706 101 January 13 revision replacement page [0034] Torsion spring: 2 [0035] Inserting end: 22 [0036] Holding end: 24 [0037] Holding column: 3 [0038] Positioning post: 32 [0039] Compression spring: 4 [0040] Housing: 5 [0041] Rib: 52 [0042] Square hole: 54 [0043] Limiting groove: 542 [0044] Chute: 56, 57, 58 [0045] First end: 582 [0046] Concave: 584 [ 0047] Convex: 586 [0048] Second end: 588 · [0049] Fixing piece: 6 [0050] Housing: 62 [0051] Pin: 7 09313461#单号A〇101第11页/Total 18 Page 1013016922-0