1289627 ⑴ 九、發明說明 【發明所屬之技術領域】 本發明是關於雙開式門用鉸鏈，特別是關於至預定開 放角度爲止，利用彈簧之閉合（複合）作用作動，當形成 預定開放角度以上時，在利用彈簧之閉合作用停止之狀態 下’可自由地進行開放停止之雙開式門用鉸鏈。 【先前技術】 開發出有門內裝型，即使在門朝左右的任一方向開放 之情況，藉由螺旋彈簧之作用可使得門複合閉合，且具備 對於複合閉合之門的油壓制動功能之雙開式門用鉸鏈（參 照專利文獻1 )。 [專利文獻1]日本特開2004-239046號公報 【發明內容】 [發明所欲解決之課題] 在前述雙開式門用鉸鏈係爲即使在門朝左右的任一方 向開放之情況，亦可將螺旋彈簧捲起，藉此，以被蓄積之 彈（彈簧）力來將門閉合者。在現在爲止之安裝鉸鏈的門 ’在已將門打開之情況，欲該門復合之彈力經常作用，因 此，無法在彈簧未作用之狀態下，將門開放停止。 本發明之目的係在於提供雖至預定開放角度爲止，利 用彈簧之閉合（複合）作用會作動，但當門被進一步打開 時，彈力不會作用，能夠自由地打開該門之雙開式門用鉸 -4 - (2) (2)1289627 鏈。 [用以解決課題之手段] 即’本發明之雙開式門用鉸鏈，係安裝於左右雙開式 門，將該門以垂直的樞軸（在以下的實施形態說明中，以 符號P表示）爲中心可樞動地支承之雙開式門用鉸鏈（1 〇 )，其特徵爲： 具有：固定支承腳（1 2 )，其係沿著前述樞軸垂直地 設定於門開口上部框或下部框； 第1樞動構件，其係在前述樞軸的周圍可樞動地被安 裝著（在同時施形態，作爲筒狀外殼32加以實施）； 第2樞動構件，其係在前述樞軸的周圍可樞動地被安 裝著（在同時施形態，作爲彈簧軸34加以實施）； 彈簧，其係一端固定於前述第1樞動構件，另一端固 定於前述第2樞動構件（在同時施形態，作爲螺旋彈簧3 6 加以實施）； 轉動手段，其係當門朝左右雙方的其中一方打開時， 使前述第1樞動構件在前述樞軸的周圍轉動，而當門朝左 右雙方的另一方打開時，使前述第2樞動構件在前述樞軸 的周圍轉動（在同時施形態，藉由具備驅動構件42之筒 狀基部30、固定於筒狀外殼32之第1被驅動構件46、及 固定於流路切換裝置34之第2被驅動構件52所構成）； 以及 固定-轉動手段，其係當門朝左右雙方的前述其中一 -5- (3) (3)BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge for a double-opening door, and particularly relates to a closing (composite) action of a spring to a predetermined opening angle, when a predetermined opening angle or more is formed. The double-opening door hinge that can be freely opened and stopped in a state where the closing action of the spring is stopped. [Prior Art] A door inner type has been developed. Even when the door is opened in either direction, the door can be closed by the action of the coil spring, and the hydraulic brake function for the composite closed door is provided. A hinge for a double-opening door (refer to Patent Document 1). [Problem to be Solved by the Invention] The double-open door hinge may be opened even if the door is opened in either direction. The coil spring is rolled up, whereby the door is closed with the accumulated spring (spring) force. In the case where the hinged door ** has been opened so far, the elastic force of the door composite is often applied, so that the door cannot be opened and stopped in a state where the spring is not actuated. The object of the present invention is to provide a double-opening door hinge which can be operated by a closing (composite) action of a spring until a predetermined opening angle, but when the door is further opened, the elastic force does not act, and the door can be freely opened. -4 - (2) (2) 1289627 Chain. [Means for Solving the Problem] That is, the double-opening door hinge of the present invention is attached to the left and right double-opening doors, and the door is vertically pivoted (indicated by the symbol P in the following embodiment). a double-opening door hinge (1 〇) pivotally supported by the center, characterized by: having: a fixed supporting leg (12) vertically disposed along the aforementioned pivot axis at the upper or lower frame of the door opening; a first pivoting member pivotally mounted around the pivot shaft (in a simultaneous configuration, implemented as a cylindrical casing 32); a second pivoting member attached to the pivot shaft It is pivotally mounted (in the simultaneous application form, as a spring shaft 34); the spring is fixed at one end to the first pivoting member, and the other end is fixed to the second pivoting member (in the simultaneous application form) Actuated as a coil spring 36; a turning means for rotating the first pivoting member around the pivot when the door is opened to one of the left and right sides, and when the door is facing the other side of the left and right sides When opening, make the front The second pivoting member rotates around the pivot shaft (in the simultaneous application mode, the tubular base portion 30 including the driving member 42 is fixed to the first driven member 46 fixed to the tubular casing 32, and is fixed to the flow path. a second driven member 52 of the device 34; and a fixed-rotation means, which is one of the aforementioned -5-(3) (3) when the door faces the left and right sides.
1289627 方打開時，在該門旋轉至預定角度爲止，將前述第2 構件與前述固定支承腳連結後，在前述樞軸的周圍3 定，當門轉動至預定角度以上時，將該第2樞動構科 述固定支承腳進行連結解除的同時，連結至前述第1 構件，使該第2樞動構件在前述樞軸的周圍，與第1 構件可一體地轉動，並且 當門朝左右雙方的前述另一方打開時，在該門旋 預定角度爲止，將前述第1樞動構件與前述固定支淨 結後，在前述樞軸的周圍予以固定，而當門轉動至預 度以上時，將該第1樞動構件由前述固定支承腳進行 解除的同時，連結至前述第1樞動構件，使該第1樞 件在前述樞軸的周圍，與第2樞動構件可一體地轉動 由第1至第3輥子18-1、18-2、18-3、第1至第7凹 、22、24、30-4、30-5、30-6、30-7 所構成）， 前述第1樞動構件及第2樞動構件分別具有在前 軸的圓周方向相互隔著間隔而設定之第1及第2被驅 (46 、 52)， 前述轉動構件被固定於門，具有設定於前述第i 2被驅動構件之間的驅動構件（4 2 )，該驅動構件係 朝左右雙方的前述其中一方打開時，卡合於前述第i 構件之第1被驅動部，使該第1驅動構件在前述樞軸 圍轉動，而當門朝左右雙方的前述另一方打開時，卡 前述第2樞動構件之第2被驅動部，使該第2驅動構 前述樞軸的周圍轉動， 樞動 >以固 1由前 樞動 樞動 :轉至 :腳連 :定角 :連結 :動構 (藉 部20 述樞 動都 及第 當門 樞動 的周 合於 件在 -6 - (4) (4)1289627 前述第2樞動構件在垂直方向整合於前述固定支承腳 ，做成沿著前述樞軸延伸之彈簧（34 )， 前述第1樞動構件呈同心狀地設定於前述彈簧軸的周 圍之筒狀外殼（32 )， 前述彈簧設定成在前述樞軸的周圍形成螺旋狀，做成 一端固定於前述彈簧軸，而另一端固定於前述筒狀外殼之 螺旋彈簧（3 6 )， 前述固定支承腳具有沿著前述樞軸延伸之圓柱狀部（ 第2小徑部12-4 )， 前述轉動手段具有在該圓柱狀部的周圍做成同心狀， 且可轉動，並且連結於門之筒狀基部（30)， 前述第2被驅動部（52)被做成由彈簧軸（34)在該 筒狀基部內朝軸線方向延伸之部分， 第1被驅動部（46 )被做成由前述筒狀外殼（32 )在 該筒狀基部內朝軸線方向延伸之部分， 前述驅動構件（42 )形成由前述筒狀基部的內面朝半 徑方向內側突出而位於第1及第2被驅動部（46、52 )之 間， 前述固定-轉動手段係在前述固定支承腳的圓柱狀部 具有：在其圓周方向隔著預定間隔而設置之第1凹部（20 )、在該第1凹部的左右方向分別隔著間隔而設置之第2 凹部（22 )及第3凹部（24 )； 而在前述轉動手段之筒狀基部，具有在門關閉著的狀 態分別與前述第2凹部與第3凹部在半徑方向整合之第4 (5) (5)1289627 凹部（30-4 )及第5凹部（30-5 )、和分別較第4及第5 凹部，由前述第1凹部在周方向分離之第6凹部（30-6 ) 及第7凹部（30-7 )， 位於前述固定支承腳的圓柱狀部與前述轉動手段的筒 狀基部之間之前述第1被驅動構件係具有：在門關閉之狀 態，在前述第3及第5凹部之間朝半徑方向貫通之第1貫 通孔（46-1 )， 位於前述固定支承腳的圓柱狀部與前述轉動手段的筒 狀基部之間之前述第2被驅動構件係具有：在門關閉之狀 態，在前述第2及第4凹部之間朝半徑方向貫通之第2貫 通孔（52-1 )， 進一步該固定-轉動手段具有：第1鎖定構件（第1 輥子1 8 -1 )，其係設置於固定支承腳的圓柱狀部與前述轉 動手段的筒狀基部之間v在門關閉之狀態，位於前述第1 及第2被驅動構件之間，嵌合於前述第1凹部者、 第2鎖定構件（第2輥子18-2)，其係被作成於前述 第1貫通孔內，在半徑方向可移動、及 第3鎖定構件（第3輥子18-3 )，其係被作成於前述 第2貫通孔內，在半徑方向可移動， 當門朝前述其中一方轉動時，做成第1鎖定構件嵌合 於固定支承腳的第1凹部，而前述第2樞動構件卡合於該 第1鎖定構件而不會轉動，並且第2鎖定構件由固定支承 腳的第3凹部脫離，部分地嵌合到前述筒狀基部的第5凹 部後，與該筒狀基部及前述第1樞動構件一同地轉動，而 -8 - (6) (6)1289627 當門轉動了前述預定角度時，前述第4凹部與前述第1鎖 定構件在半徑方向整合，並且第6凹部與第3鎖定構件在 半徑方向整合，而當該門進一步朝前述其中一方轉動時， 第1鎖定構件由前述第1凹部脫離而部分地嵌合至該第4 凹部，並且第3鎖定構件部分地嵌合至前述第6凹部，前 述第1及第2樞動構件經由前述第2鎖定構件、前述筒狀 基部及前述第3鎖定構件連結，而在前述固定支承腳的周 圍一體地轉動， 當門朝前述另一方轉動時，做成第1鎖定構件嵌合到 固定支承腳的第1凹部，前述第1樞動構件卡合到該第1 鎖定構件而不會轉動，並且第3鎖定構件由固定支承腳的 第2凹部脫離而部分地嵌合到前述筒狀基部的第4凹部後 ，與該筒狀基部及前述第2樞動構件一同地轉動，而當門 轉動了前述預定角度時，前述第5凹部與前述第1鎖定構 件在半徑方向整合，並且第7凹部與第2鎖定構件在半徑 方向整合，而當該門進一步朝前述另一方轉動時，第1鎖 定構件由前述第1凹部脫離而部分地嵌合至該第5凹部， 並且第2鎖定構件部分地嵌合至前述第7凹部，前述第1 及第2樞動構件經由前述第2鎖定構件、前述筒狀基部及 前述第3鎖定構件連結，而在前述固定支承腳的周圍一體 地轉動。 具體而言， 前述固定支承腳做成固定於門開口下部框部， 作爲前述第1樞動構件之彈簧軸在前述固定支承腳的 -9- (7) (7)1289627 上方位置朝前述軸線方向延伸， 作爲前述第2樞動構件之筒狀外殼在固定支持腳的前 述圓柱狀部分之上方位置朝前述軸線方向延伸， 該雙開式門用鉸鏈進一步具有： 減震筒，其係固定於彈簧軸的上端’用以劃定在前述 筒狀外殼的內側朝上方延伸且在內部收納減震液之密閉減 震室者； 活塞（5 6 )，其係密封滑動卡合於該減震室的內壁面 ，將該減震筒內分離成上部室（50-1 )及下部室（50-2 ) 活塞旋轉驅動部（5 8 )，其係被固定於前述筒狀外殼 (3 2 )，由減震室的上端朝上部室內向下方延伸，連結到 前述活塞； 活塞升降手段，其係當門在打開方向及關閉方向移動 ’作爲前述第1樞動構件之筒狀外殼與作爲前述第2樞動 構件之彈簧軸相對地轉動時，藉由前述活塞旋轉驅動部對 於前述減震筒相對地旋轉，使得該活塞分別在減震室上升 及下降（在實施形態之活塞的外周面與減震桶的內周面之 螺旋卡合）； 第1流體通路（56-2)，其係當前述活塞在減震室下 上時’爲了容許流體由前述下部室朝上部室流動而設置於 活塞者； 具有止回閥之第2流體通路（64 )，其係當前述活塞 在減震室內上升時’容許流體由前述上部室朝下部室流動 -10- (8) (8)1289627 ，而當同活塞在減震室內下降時，阻止流體由前述下部室 朝上部室流動者；以及 流體阻抗調節構件（60 )，其係具備安裝於該雙開式 門用鉸鏈之上端的手動調節部、及由該手動調節部貫通前 述活塞旋轉驅動部內而延伸至前述第1流體通路爲止，經 由手動條結構部來調節該第1流體通路之流路阻抗用的調 節部。 在此情況，前述活塞旋轉驅動部係被連結成對於前述 活塞不能相對旋轉，且可相對上下移動， 前述活塞係與前述減震筒的內周面螺旋卡合，當藉由 前述旋轉驅動部加以旋轉驅動時，利用與前述減震動的內 周面之螺旋卡合，來在該減震筒內上下移動。 [發明效果] 本發明的鉸鏈係因具有前述結構，所以當將門打開預 定角度以上時，形成彈簧之復合閉合力不會作用之狀態， 因此能夠將該門不會有彈簧阻抗而可自由地打開停止。 又，本發明之雙開式門用鉸鏈係因安裝於下部框部， 所以比起將該鉸鏈安裝於上部框部者，在藉由手動調節部 進行減震室的流路阻抗之調整的情況，能更簡單地操作手 動調節部。又，因將減震室設置於門復合閉合手段之上部 ，所以比起將減震室安裝於門復合閉合手段之下部者，能 夠將該鉸鏈之構件做成更簡單且緊緻化。且，在設置減震 室之情況，因下部室形成高壓室，所以可將因氣體侵入到 -11- (9) (9)1289627 高壓室所造成之障礙做成最小限度。 【實施方式】 以下，根據圖面，說明關於本發明的雙開式門用鉸鏈 之實施形態。 圖1係顯不藉由本發明之雙開式門用鉸鏈1〇在朝垂 直方向延伸的樞軸線P的周圍可轉動之雙開式門D處於閉 合狀態之圖。即，該門D係藉由：在其下部位置沿著樞軸 線P配置，且裝設於該門D的內部，藉由門開口下部框部 L所支承之門用鉸鏈（以下僅稱爲「鉸鏈」）1 〇 ;及設置 於門D的上部且樞裝於門開口上部框部U之頂樞軸（top pivot ) T，可轉動地安裝於門開口部。 圖2係圖1的鉸鏈1 0之放大縱斷面圖。如圖所示， 此鉸鏈1 〇係具有：於埋設於門開口下部框部L之承受座 S (圖1)，在前述樞軸線Ρ的周圍不會旋轉地被支承的 固定支承腳12;安裝於該固定支承腳12，對該固定支承 腳1 2，在前述樞軸線Ρ的周圍可相對地轉動地安裝且朝 水平延伸，而固定於門之鉸鏈安裝板14 ;當門D由閉合 位置朝左右打開時，賦予將該門返回至閉合位置的返回力 之螺旋彈簧機構部1 6 ;以及當在門D被打開後，返回至 閉合位置時’賦予流體制動力之減震機構1 8。 圖3係將固定支承腳1 2及螺旋彈簧機構部1 6的部分 分解顯示之圖。如圖所示，固定支承腳1 2係設置有插入 固定於承受座S之下部部分12-1;及由該下部部分朝上方 -12- (10) 1289627 依次設置之大直徑部1 2 - 2、第1小直徑部1 2 - 3、以及 小直徑部12-4。 在大直徑部1 2 - 2與第1小直徑部1 2 - 3之間的階 設定有推力軸承15，在該推力軸承15上以包圍第1 徑部12-3的方式載置螺旋彈簧機構部16，對於固定 腳1 2在前述樞軸線p的周圍可轉動。 在第2小直徑部12-4，設有可供參照圖5後述之 輥子18-1、第2輥子18-2、第3輥子18-3所嵌合之 、第3及第2凹部20、22、24。 螺旋彈簧機構部1 6係具有：於固定支承腳1 2上 成在前述樞軸線P的周圍可轉動之筒狀基部30;呈 狀地安裝於該筒狀基部30上，對於該筒狀基部30做 前述樞軸線P的周圍可相對地轉動之筒狀外殼3 2 ; 芯狀地安裝於該筒狀外殼3 2內，對於該筒狀外殼， 述樞軸線P的周圍可轉動地被安裝之彈簧軸34;以 定於該彈簧軸34的周圍之螺旋彈簧36。 筒狀基部30係由下算起依次具有大直徑部3〇-1 1小直徑部30-2、及第2小直徑部30-3，在大直徑部 的下端外周固定鉸鏈安裝板14之底端環部14’，在第 直徑部30-3的外周設置軸承構件4〇，又，在其內周 定有參照圖4後述之驅動構件4 2。又，在該筒狀基部 周面，設有承受參照圖5後述之輥子的第4至第7 30-4 、 30-5 、 30-6 、 30-7 。 筒狀外殻32係其下端載置於筒狀基部30的大直 :第2 差部 小直 支承 第1 第1 ，做 同心 成在 呈同 在前 及設 、第 30-1 2小 面固 的內 凹部 徑部 -13- (11) (11)1289627 3 Ο - 1與第1小直徑部3 Ο - 2之間的階差部，延伸至該鉸鏈 1 〇的上端爲止，對於筒狀基部3 0，在前述樞軸線Ρ的周 圍可相對地轉動。在該筒狀外殻3 2的下端附近之內周面 ，經由筒狀的固定構件8，固定有如圖5所示之後述的第 1被驅動部46。該第1被驅動部46係由圖4及圖5可得 知，以樞軸線Ρ爲中心延伸於大約60度左右之角度範圍 ，且朝樞軸線Ρ延伸而延伸至筒狀基部30之大直徑部30-1內。在第1被驅動部46之圖4及圖5所示的中央位置’ 設有第1貫通孔46-1，將第2輥子18-2在半徑方向可移 位地予以收納。 彈簧軸34係其上端部34-1的直徑被擴大，將構成減 震機構18的減震筒50之下端關閉而固定於該下端。上端 部34-1係經由推力軸承54可旋轉地支承於固定在筒狀外 殼32的內周面上之軸支承部。下端34-2係做成大致抵接 於固定支承腳12的第2小直徑部12-4之上端。在該彈簧 軸34之下端34-2，固定有與樞軸線Ρ平行地延伸之第2 被驅動部52，在固定支承腳12之第2小直徑部12-4的周 圍，與前述第1被驅動部46同樣地延伸於大約60度角度 範圍，在其中央部分，形成有將第3輥子18-3在半徑方 向可移位地收納之第2貫通孔5 2 -1。螺旋彈簧3 6係其下 端固定於彈簧軸34，上端固定於筒狀外殻32。 如圖2所示，減震機構1 8具有泛用的機構，其具有 :固定於彈簧軸34的上端，用以劃定：在筒狀外殻32的 內側朝上方延伸且在內部收容減震液的減震室之前述減震 -14- (12) (12)1289627 筒50;密封滑動卡合於該減震筒5〇的內壁面，將該減震 筒50內分離成上部室50-1及下部室50_2之活塞56;及 固定於筒狀外殼3 2之上端部分，由減震筒5 〇上端朝上部 室50-1內，向下方延伸，連接至活塞56之活塞旋轉驅動 部58。活塞旋轉驅動部58係對於活塞56進行花鍵結合， 活塞5 6對該活塞旋轉驅動部5 8不能相對地旋轉但可上下 移動。在圖示例，活塞56做成筒狀，藉由安裝於內部下 端之分離構件56-1分離成上部室50-1與下部室50-2。上 部室50-1係藉由花鍵結合於活塞56之活塞旋轉驅動部58 的部分分離成上下，但流體經由花鍵結合部分連通。活塞 5 6係與減震筒5 0的內周面螺旋結合，當藉由活塞旋轉驅 動部5 8旋轉驅動時，利用與減震筒5 〇的內周面之螺旋結 合（在上下方向不會移位），來在減震筒50內上下移動 。具體而言，當門D在關閉方向動作而筒狀外殼32與彈 簧軸3 4相對地轉動時，藉由活塞旋轉驅動部5 8對於減震 筒5 0相對地旋轉’使得活塞5 6對於減震筒5 0相對地旋 轉，藉此在減震室內下降。 在活塞56，設有用來當該活塞56在減震室內下降時 谷I午流體由下部室50-2朝上部室50-1流動之第1流體通 路’在圖示例’於分離構件5 6 -1的中央沿著樞軸線p延 伸地設置而貫通孔56-2形成該第1流體通路。在該貫通 孔內’通過有流體阻抗調節構件6 0，該流體阻抗調節構件 6 〇藉由旋轉設置於鉸鏈1 0的上端之手動旋轉調節構件6 j 朝上下方向移動’改變在上下方向的位置，藉此能調節該 -15- (13) (13)1289627 貫通孔即第1流體通路之流路阻抗。又，在活塞5 6設有 附止回閥之第2流體通路64，該第2流體通路64係當活 塞56在減震室上升時，容許流體由上部室50-1朝下部室 50-2流動，而當下降時，阻止流體由下部室50-2朝上部 室5 0 -1流動。 在圖4的中央所示之門打開角度爲0度之狀態，固定 於筒狀基部30之驅動構件42做成位於：在固定於筒狀外 殻32之第1被驅動部46、及固定於彈簧軸34之第2被驅 動部52的中間位置，接觸於兩構件之位置。又，在相同 狀態，如圖5所示，第1輥子18-1藉由筒狀基部30的內 周面按壓嵌合於設置在固定支承腳1 2的第2小直徑部1 2-4之第1凹部20，第2輥子18-2位於在半徑方向整合之 第2凹部24與第5凹部30-5之間，而第3輥子18-3位於 在半徑方向整合的第3凹部22與第4凹部30-4之間。第 6及第7凹部30-6、30-7處於圖示之位置。 以下，說明關於將門朝左右打開時之鉸鏈的作用。 首先，將門朝左打開之情況，與被固定於門的鉸鏈安 裝板1 4 一體之筒狀基部3 0也同樣地產生朝左打開之動作 ’安裝於該筒狀基部30之驅動構件42將固定於筒狀外殼 32之第1被驅動部46如圖所示，朝逆時鐘方向轉動。此 時，固定於彈簧軸34之第2被驅動部52受到第1輥子 18-1而被阻止了朝逆時鐘方向之旋轉，因此，在筒狀外殼 32與彈簧軸34之間產生相對的旋轉，藉此，螺旋彈簧36 被捲取。在圖示例，當門D被打開至70度時，第4凹部 -16- (14) 1289627 30-4、第6凹部30-6在半徑方向整合於在被打開爲止受 固定支承腳12所固定之第1輥子18-1、第3輥子18-3 因此，當將門打開70度以上之角度時，第1輥子1 8-1 第3輥子18-3由固定支承腳12之第1及第2凹部20、 脫離，嵌合到第4凹部30-4、第6凹部30-6，因此第1 第2被驅動部46、52經由筒狀基部30被連結，筒狀外 32與彈簧軸34在旋轉方向形成一體。因此，在此狀態 ，位於這被一體化的筒狀外殼32與彈簧軸34之間的螺 彈簧3 6的復原力不會發生作用，能夠將門自由地打開 止。 在將門D朝右打開之情況，與前述朝左打開之情況 反地，首先彈簧軸34受到驅動構件42所轉動，對於靜 之筒狀外殼32相對地旋轉而將螺旋彈簧36捲取，蓄積 原力，但與70度以上的角度比較時，與朝左打開之情 同樣地，第1及第2被驅動部46、52經由第3輥子1Ϊ 、大直徑部30-1、第2輥子18-2被連結，筒狀外殻32 彈簧軸34形成一體’成爲彈簧的復原力不會作用於門 狀態。 由前述可得知，當門D朝左右打開時，彈簧軸34 筒狀外殻3 2相對地朝相同方向（即，對於筒狀外殼3 2 順時鐘方向，又筒狀外殼32對於彈簧軸34朝逆時鐘方 )轉動，進行螺旋彈簧3 6之捲取動作，但此時，被固 於彈簧軸3 4之減震筒5 0係對於筒狀外殼3 2朝相同方 轉動，活塞56在該減震筒50內上升。又，當門朝關閉 到 ί 〇 與 22 及 殻 下 旋 停 相 止 復 況 ：-3 與 之 及 朝 向 定 向 方 -17- (15) (15)1289627 向轉動時，即使在朝左右的任一方向轉動時，彈簧軸3 4 及筒狀外殼3 2相對地轉動，而當門被打開時，朝相反方 向轉動，藉此，活塞5 6在筒狀外殼3 2內下降，賦予對於 門之復原力所需之阻抗。 【圖式簡單說明】 圖1係顯示安裝有本發明的鉸鏈之雙開式門被關閉著 之狀態的圖。 圖2係本發明的鉸鏈之縱斷側面圖。 圖3係同鉸鏈的固定支承腳與螺旋彈簧機構之分解圖 〇 圖4係沿著圖2之IV-IV線所觀看的圖，顯示：當門 朝左打開時，將（固定於彈簧軸）之第2被驅動部固定， 容許（固定於筒狀外殼）之第1被驅動部受到驅動構件所 旋轉，並且當門朝右打開時，將（固定於筒狀外殻）之第 1被驅動部固定，容許（固定於彈簧軸）之第2被驅動部 受到驅動構件所旋轉之固定-轉動機構的動作之圖。 圖5係沿著圖2之V-V線所觀看的圖，顯示：當門朝 左打開時，將（固定於彈簧軸）之第2被驅動部固定，容 許（固定於筒狀外殼）之第1被驅動部受到驅動構件所旋 轉’並且當門朝右打開時，將（固定於筒狀外殻）之第1 被驅動部固定，容許（固定於彈簧軸）之第2被驅動部受 到驅動構件所旋轉之固定-轉動機構的動作之圖。 -18- (16) (16)1289627 【主要元件符號說明】 1 〇 :門用鉸鏈 1 2 :固定支承腳 12-1 :下部部分 1 2 - 2 :大直徑部 1 2 - 3 :第1小直徑部 12-4 :第2小直徑部 1 4 :鉸鏈安裝板 1 4 ’ ：底端環部 1 5 :推力軸承 1 6 :螺旋彈簧機構部 1 8 :減震機構 18-1 :第1輥子 18-2 :第2輥子 18-3 :第3輥子 20 :第1凹部 22 :第2凹部 24 :第3凹部 3 0 :筒狀基部 30-1 :大直徑部 30-2 :第1小直徑部 3 0-3 :第2小直徑部 30-4 :第4凹部 30-5 :第5凹部 -19 (17) (17)1289627 30-6 :第6凹部 3 0 - 7 :第7凹部 3 2 :筒狀外殼（第1樞動構件） 34 :彈簧軸（第2樞動構件） 34-1 :上端部 3 4 - 2 .下觸 36 :螺旋彈簧（彈簧） 4 0 :軸承構件 42 :驅動構件 46 :第1被驅動部 46-1 :第1貫通孔 4 8 :固定構件 5 0 :減震筒 50-1 :上部室 50-2 :下部室 5 2 :第2被驅動部 5 2 -1 :第2貫通孔 54 :推力軸承 56 :活塞 5 6 -1 :分離構件 56-2 :貫通孔（第1流體通路） 5 8 :活塞旋轉驅動部 60 :流體阻抗調節構件 6 1 :手動旋轉調節構件 -20- (18) (18)12896271289627 When the door is opened, the second member is coupled to the fixed support leg after the door is rotated to a predetermined angle, and then fixed around the pivot shaft. When the door is rotated to a predetermined angle or more, the second pivot is used. The fixed support leg is coupled to the first member, and the second pivot member is integrally rotatable with the first member around the pivot shaft, and the door is facing the left and right sides. When the other side is opened, the first pivoting member and the fixed branch are cleaned and fixed around the pivot axis, and when the door is rotated to a predetermined degree or more, the door is rotated to a predetermined degree or more. The first pivoting member is coupled to the first pivoting member while being released by the fixed support leg, and the first pivoting member is integrally rotatable with the second pivoting member around the pivot shaft by the first To the third roller 18-1, 18-2, 18-3, the first to seventh concave, 22, 24, 30-4, 30-5, 30-6, 30-7), the first pivot The movable member and the second pivoting member are respectively set at intervals in the circumferential direction of the front shaft The first and second driven members (46, 52) are fixed to the door, and have driving members (42) disposed between the i-th driven members, and the driving members are directed to the left and right sides. When one of the above is opened, the first driven member is engaged with the first driven member, and the first driving member is rotated around the pivot, and when the door is opened to the other of the left and right sides, the second card is inserted. The second driven portion of the pivoting member rotates the periphery of the pivot shaft of the second driving structure, and pivots to pivot by the front pivoting: to: foot: fixed angle: joint: dynamic (By the 20th, the pivoting and the pivoting of the first door are in the -6 - (4) (4) 1289627. The second pivoting member is integrated in the vertical direction on the fixed supporting leg, and is formed along the The spring extending shaft (34), wherein the first pivoting member is concentrically disposed around the spring shaft (32), and the spring is set to form a spiral around the pivot shaft. One end is fixed to the aforementioned spring shaft, and the other end is fixed to the screw of the aforementioned cylindrical casing a spring (36) having a cylindrical portion (second small diameter portion 12-4) extending along the pivot shaft, wherein the rotating means has a concentric shape around the cylindrical portion, and Rotating and connecting to the cylindrical base portion (30) of the door, the second driven portion (52) is formed as a portion of the spring shaft (34) extending in the axial direction in the cylindrical base portion, and the first driven portion (46) a portion extending in the axial direction of the cylindrical casing (32) in the cylindrical base portion, wherein the driving member (42) is formed to protrude from the inner surface of the cylindrical base portion inward in the radial direction Between the first and second driven portions (46, 52), the fixing-rotating means has a first concave portion (20) provided at a predetermined interval in a circumferential direction of the cylindrical portion of the fixed supporting leg. a second recessed portion (22) and a third recessed portion (24) provided at intervals in the left-right direction of the first recessed portion; and the tubular base portion of the rotating means has a state in which the door is closed and the first 2 The fourth part of the concave portion and the third concave portion are integrated in the radial direction ( 5) (5) 1289627 recessed portion (30-4) and fifth recessed portion (30-5), and sixth recessed portion (30-6) separated from the fourth recessed portion by the first recessed portion in the circumferential direction And the seventh recessed portion (30-7), wherein the first driven member located between the cylindrical portion of the fixed support leg and the cylindrical base portion of the rotating means has a state in which the door is closed and the third and third The first through hole (46-1) penetrating between the fifth recesses in the radial direction, and the second driven member located between the cylindrical portion of the fixed support leg and the cylindrical base of the rotating means: In the state in which the door is closed, the second through hole (52-1) that penetrates in the radial direction between the second and fourth recesses, and the fixing-rotating means further includes a first locking member (the first roller 18-1) And being disposed between the first and second driven members between the cylindrical portion of the fixed support leg and the cylindrical base portion of the rotating means, and being fitted between the first and second driven members, and being fitted to the first concave portion The second locking member (second roller 18-2) is formed in the first through hole, and is half The third locking member (third roller 18-3) is movable in the radial direction, and is formed in the second through hole, and is movable in the radial direction. When the door is rotated toward the other one, the first one is made. The lock member is fitted to the first recess of the fixed support leg, and the second pivot member is engaged with the first lock member without rotation, and the second lock member is detached from the third recess of the fixed support leg, and partially After being fitted into the fifth recess of the cylindrical base portion, the cylindrical base portion and the first pivoting member are rotated together, and -8 - (6) (6) 1289627, when the door is rotated by the predetermined angle, the aforementioned The fourth recess is integrated in the radial direction with the first lock member, and the sixth recess and the third lock member are integrated in the radial direction, and when the door is further rotated toward the other one, the first lock member is disengaged from the first recess And partially fitted to the fourth recess, and the third lock member is partially fitted to the sixth recess, and the first and second pivoting members pass through the second lock member, the tubular base, and the third The locking member is coupled to the aforementioned solid The circumference of the fixed support leg is integrally rotated, and when the door is rotated toward the other side, the first lock member is fitted into the first recessed portion of the fixed support leg, and the first pivot member is engaged with the first lock member. The third lock member is detached from the second recessed portion of the fixed support leg and partially fitted to the fourth recessed portion of the cylindrical base portion, and then rotated together with the tubular base portion and the second pivoting member. When the door is rotated by the predetermined angle, the fifth recess is integrated with the first locking member in the radial direction, and the seventh recess and the second locking member are integrated in the radial direction, and when the door is further rotated toward the other side. The first lock member is partially detached from the first recessed portion and partially fitted to the fifth recessed portion, and the second lock member is partially fitted to the seventh recessed portion, and the first and second pivoting members are passed through the second recessed portion. The lock member, the cylindrical base portion, and the third lock member are coupled to each other and integrally rotate around the fixed support leg. Specifically, the fixed support leg is fixed to the lower frame portion of the door opening, and the spring shaft as the first pivoting member is located above the -9-(7) (7) 1289627 of the fixed support leg toward the axial direction. Extending, the cylindrical outer casing as the second pivoting member extends in the axial direction above the cylindrical portion of the fixed supporting leg, and the double-opening door hinge further has: a damping cylinder fixed to the spring shaft The upper end 'is used to define a closed shock absorbing chamber extending upward on the inner side of the cylindrical outer casing and accommodating the shock absorbing liquid therein; a piston (56) that is sealingly slidably engaged in the damper chamber a wall surface, the inner portion of the damper cylinder is separated into an upper chamber (50-1) and a lower chamber (50-2), and a piston rotation driving portion (58) is fixed to the cylindrical casing (3 2 ). The upper end of the chamber extends downward toward the upper chamber and is coupled to the piston; the piston lifting means moves the door in the opening direction and the closing direction. The cylindrical casing as the first pivoting member and the second pivoting Spring shaft of the component When the ground is rotated, the piston rotation driving portion relatively rotates with respect to the damper cylinder, so that the piston rises and falls in the damper chamber respectively (in the outer circumferential surface of the piston and the inner circumferential surface of the damper barrel in the embodiment) a first fluid passage (56-2), which is provided to the piston in order to allow fluid to flow from the lower chamber toward the upper chamber when the piston is below the shock chamber; having a check valve a second fluid passage (64) that allows the fluid to flow from the upper chamber toward the lower chamber when the piston rises in the damper chamber -10 (8) (8) 1289627, and when the same piston descends in the damper chamber And preventing the fluid from flowing from the lower chamber toward the upper chamber; and the fluid impedance adjusting member (60) having a manual adjusting portion attached to the upper end of the double-opening door hinge, and the manual adjusting portion penetrating the piston The adjustment portion for the channel impedance of the first fluid passage is adjusted via the manual bar structure portion in the rotation driving portion to extend to the first fluid passage. In this case, the piston rotation driving unit is coupled so as not to be relatively rotatable with respect to the piston, and is movable up and down, and the piston system is spirally engaged with the inner circumferential surface of the damper cylinder, and is rotated by the rotation driving unit. At the time of the rotary drive, the screw is engaged with the inner peripheral surface of the damper movement to move up and down in the damper cylinder. [Effect of the Invention] Since the hinge of the present invention has the above-described configuration, when the door is opened by a predetermined angle or more, the composite closing force of the spring does not act, so that the door can be freely opened without the spring resistance. stop. Further, since the double-opening door hinge of the present invention is attached to the lower frame portion, the flow path impedance of the damper chamber is adjusted by the manual adjustment portion as compared with the case where the hinge is attached to the upper frame portion. The manual adjustment can be operated more easily. Further, since the shock absorbing chamber is provided at the upper portion of the door composite closing means, the member of the hinge can be made simpler and more compact than the case where the shock absorbing chamber is attached to the lower portion of the door composite closing means. Moreover, in the case where the shock absorbing chamber is provided, since the lower chamber forms a high pressure chamber, the obstacle caused by the gas intruding into the high pressure chamber of -11-(9) (9) 1289627 can be minimized. [Embodiment] Hereinafter, an embodiment of a double-opening door hinge according to the present invention will be described based on the drawings. Fig. 1 is a view showing a state in which the double-opening door D rotatable around the pivot axis P extending in the vertical direction is not closed by the double-opening door hinge 1 of the present invention. That is, the door D is disposed at a lower position thereof along the pivot axis P, and is attached to the inside of the door D, and the door hinge supported by the lower opening frame portion L of the door opening (hereinafter simply referred to as " a hinge ")1"; and a top pivot T disposed at an upper portion of the door D and pivotally mounted to the upper portion of the door opening U is rotatably attached to the door opening. Figure 2 is an enlarged longitudinal sectional view of the hinge 10 of Figure 1. As shown in the figure, the hinge 1 has a fixed support leg 12 that is rotatably supported around the pivot axis 于 in a seat S (Fig. 1) embedded in the lower frame portion L of the door opening; The fixed supporting leg 12, the fixed supporting leg 12 is rotatably mounted around the pivot axis 且 and extends horizontally, and is fixed to the hinge mounting plate 14 of the door; when the door D is closed by the position When the left and right are opened, the coil spring mechanism portion 16 that gives the return force returning the door to the closed position; and the shock absorbing mechanism 18 that gives the fluid braking force when returning to the closed position after the door D is opened. Fig. 3 is an exploded perspective view showing a portion of the fixed support leg 12 and the coil spring mechanism portion 16. As shown, the fixed support leg 12 is provided with a portion 12-1 that is inserted and fixed to the lower portion of the susceptor S; and a large diameter portion 1 2 - 2 that is sequentially disposed from the lower portion toward the upper -12-(10) 1289627 The first small diameter portion 1 2 - 3 and the small diameter portion 12-4. A thrust bearing 15 is disposed at a step between the large diameter portion 1 2 - 2 and the first small diameter portion 1 2 - 3 , and a coil spring mechanism is placed on the thrust bearing 15 so as to surround the first diameter portion 12 - 3 The portion 16 is rotatable about the pivot axis p for the fixed leg 12. The second small diameter portion 12-4 is provided with the third and second concave portions 20 to which the roller 18-1, the second roller 18-2, and the third roller 18-3, which will be described later with reference to Fig. 5, are fitted. 22, 24. The coil spring mechanism portion 16 has a cylindrical base portion 30 that is rotatable around the pivot axis P on the fixed support leg 12, and is attached to the cylindrical base portion 30 in a zigzag manner, for the cylindrical base portion 30. a cylindrical casing 3 2 which is relatively rotatable around the pivot axis P; a core-like housing is mounted in the cylindrical casing 32, for which the spring is rotatably mounted around the pivot axis P A shaft 34; a coil spring 36 defined around the spring shaft 34. The cylindrical base portion 30 has a large diameter portion 3〇-1 1 small diameter portion 30-2 and a second small diameter portion 30-3 in this order, and the bottom of the hinge mounting plate 14 is fixed to the outer periphery of the lower end portion of the large diameter portion. The end ring portion 14' is provided with a bearing member 4A on the outer circumference of the first diameter portion 30-3, and a drive member 42 to be described later with reference to Fig. 4 is provided on the inner circumference thereof. Further, on the circumferential surface of the cylindrical base portion, fourth to seventh 30 to 30, 30 to 5, 30 to 6, and 30 to 7 which are to be described later with reference to Fig. 5 are provided. The cylindrical outer casing 32 is a straight portion in which the lower end is placed on the cylindrical base portion 30: the second difference portion is small and straight to support the first first, and is concentrically formed in the same front and the third, and the third surface is fixed. The inner diameter portion 13-(11) (11) 1289627 3 Ο - 1 and the step portion between the first small diameter portion 3 Ο - 2 extends to the upper end of the hinge 1 ,, for the cylindrical base 30, relatively rotatable around the aforementioned pivot axis Ρ. The first driven portion 46, which will be described later, as shown in Fig. 5, is fixed to the inner peripheral surface of the cylindrical outer casing 32 by the cylindrical fixing member 8. The first driven portion 46 can be seen from FIG. 4 and FIG. 5, extending over an angular range of about 60 degrees around the pivot axis, and extending toward the pivot axis to extend to the large diameter of the cylindrical base 30. In section 30-1. The first through hole 46-1 is provided at the center position ' shown in Figs. 4 and 5 of the first driven portion 46, and the second roller 18-2 is accommodated in the radial direction. The spring shaft 34 is enlarged in diameter at its upper end portion 34-1, and the lower end of the damper cylinder 50 constituting the damper mechanism 18 is closed and fixed to the lower end. The upper end portion 34-1 is rotatably supported by a shaft support portion fixed to the inner peripheral surface of the cylindrical casing 32 via a thrust bearing 54. The lower end 34-2 is formed to substantially abut against the upper end of the second small diameter portion 12-4 of the fixed support leg 12. A second driven portion 52 extending in parallel with the pivot axis 固定 is fixed to the lower end 34-2 of the spring shaft 34, and the first small portion 12-4 of the fixed support leg 12 is surrounded by the first Similarly, the driving portion 46 extends over an angular range of approximately 60 degrees, and a second through hole 5 2 -1 for accommodating the third roller 18-3 in the radial direction is formed in the central portion thereof. The coil spring 36 is fixed at its lower end to the spring shaft 34, and its upper end is fixed to the cylindrical casing 32. As shown in FIG. 2, the damper mechanism 18 has a general-purpose mechanism having an upper end fixed to the spring shaft 34 for delimiting: extending upward in the inner side of the cylindrical casing 32 and accommodating the inside thereof The shock absorbing chamber of the liquid shock absorbing chamber - 14 - (12) (12) 1289627 cylinder 50; the sealing slide is engaged with the inner wall surface of the damper cylinder 5, and the damper cylinder 50 is separated into the upper chamber 50- 1 and a piston 56 of the lower chamber 50_2; and an upper end portion fixed to the cylindrical casing 3 2, extending downward from the upper end of the damper cylinder 5 toward the upper chamber 50-1, and connected to the piston rotation driving portion 58 of the piston 56 . The piston rotation driving portion 58 is spline-coupled to the piston 56, and the piston 56 cannot rotate relative to the piston rotation driving portion 58 but can move up and down. In the illustrated example, the piston 56 is formed in a cylindrical shape and separated into an upper chamber 50-1 and a lower chamber 50-2 by a separating member 56-1 attached to the inner lower end. The upper chamber 50-1 is separated into upper and lower portions by a portion of the piston rotation driving portion 58 that is spline-coupled to the piston 56, but the fluid communicates via the spline coupling portion. The piston 56 is screwed to the inner circumferential surface of the damper cylinder 50, and when it is rotationally driven by the piston rotation driving portion 58, the screw is combined with the inner circumferential surface of the damper cylinder 5 (not in the up and down direction). Shift) to move up and down within the damper cylinder 50. Specifically, when the door D is operated in the closing direction and the cylindrical casing 32 is rotated relative to the spring shaft 34, the piston rotation driving portion 58 is relatively rotated with respect to the damper cylinder 50 so that the piston 56 is reduced. The cylinder 50 rotates relatively, thereby descending in the damper chamber. The piston 56 is provided with a first fluid passage 'in the example of the drawing' for the flow of the liquid in the lower chamber 50-2 toward the upper chamber 50-1 when the piston 56 is lowered in the damper chamber. The center of -1 extends along the pivot axis p, and the through hole 56-2 forms the first fluid passage. In the through hole, 'the fluid impedance adjusting member 6 , is moved in the vertical direction by rotating the manual rotation adjusting member 6 j provided at the upper end of the hinge 10 to change the position in the up and down direction. Thereby, the flow path impedance of the first fluid passage, which is the through hole of the -15-(13)(13)1289627, can be adjusted. Further, the piston 56 is provided with a second fluid passage 64 to which a check valve is attached, and the second fluid passage 64 allows the fluid to pass from the upper chamber 50-1 toward the lower chamber 50-2 when the piston 56 rises in the damper chamber. Flow, and when descending, prevents fluid from flowing from lower chamber 50-2 toward upper chamber 50-1. In a state where the door opening angle shown in the center of FIG. 4 is 0 degrees, the driving member 42 fixed to the cylindrical base portion 30 is located at the first driven portion 46 fixed to the cylindrical casing 32, and is fixed to The intermediate position of the second driven portion 52 of the spring shaft 34 contacts the position of the two members. In the same state, as shown in FIG. 5, the first roller 18-1 is press-fitted to the second small-diameter portion 12-4 provided in the fixed support leg 12 by the inner peripheral surface of the cylindrical base portion 30. In the first recess 20, the second roller 18-2 is located between the second recess 24 and the fifth recess 30-5 integrated in the radial direction, and the third roller 18-3 is located in the third recess 22 and the third integrated in the radial direction. 4 between the recesses 30-4. The sixth and seventh recesses 30-6, 30-7 are in the positions shown. Hereinafter, the action of the hinge when the door is opened to the left and right will be described. First, when the door is opened to the left, the cylindrical base portion 30 which is integrally fixed to the hinge mounting plate 14 of the door is also opened to the left. The driving member 42 attached to the cylindrical base portion 30 is fixed. The first driven portion 46 of the cylindrical casing 32 is rotated in the counterclockwise direction as shown in the drawing. At this time, the second driven portion 52 fixed to the spring shaft 34 is prevented from rotating in the counterclockwise direction by the first roller 18-1, so that a relative rotation occurs between the cylindrical casing 32 and the spring shaft 34. Thereby, the coil spring 36 is taken up. In the example of the figure, when the door D is opened to 70 degrees, the fourth recesses 16-(14) 1289627 30-4 and the sixth recesses 30-6 are integrated in the radial direction by the fixed support legs 12 when they are opened. The first roller 18-1 and the third roller 18-3 are fixed. Therefore, when the door is opened at an angle of 70 degrees or more, the first roller 1 8-1 the third roller 18-3 is fixed by the first and the second of the support leg 12 Since the recessed portion 20 is detached and fitted into the fourth recessed portion 30-4 and the sixth recessed portion 30-6, the first and second driven portions 46 and 52 are coupled via the cylindrical base portion 30, and the cylindrical outer portion 32 and the spring shaft 34 are connected. Formed in one piece in the direction of rotation. Therefore, in this state, the restoring force of the coil spring 36 located between the integrated cylindrical casing 32 and the spring shaft 34 does not act, and the door can be freely opened. When the door D is opened to the right, the spring shaft 34 is rotated by the driving member 42 in the reverse direction, and the coiled spring 36 is wound up against the stationary cylindrical casing 32 to accumulate the original. When the force is compared with the angle of 70 degrees or more, the first and second driven portions 46 and 52 pass through the third roller 1Ϊ, the large diameter portion 30-1, and the second roller 18-, as in the case of opening to the left. 2 is connected, and the cylindrical casing 32 is integrally formed with the spring shaft 34. The restoring force of the spring does not act on the door state. As can be seen from the foregoing, when the door D is opened to the left and the right, the cylindrical shaft 32 of the spring shaft 34 is relatively facing in the same direction (i.e., clockwise for the cylindrical casing 3 2, and the cylindrical casing 32 for the spring shaft 34) Rotating toward the counterclockwise), the winding action of the coil spring 36 is performed, but at this time, the damper cylinder 50 fixed to the spring shaft 34 rotates toward the same direction with respect to the cylindrical casing 32, and the piston 56 is The inside of the damper cylinder 50 rises. Also, when the door is closed to ί 〇 and 22 and the lower part of the case is stopped, the -3 is turned toward the orientation side -17-(15) (15) 1289627, even if it is toward the left or right. When the direction is rotated, the spring shaft 34 and the cylindrical casing 32 are relatively rotated, and when the door is opened, it is rotated in the opposite direction, whereby the piston 56 is lowered in the cylindrical casing 32, giving restoration to the door. The impedance required for the force. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a state in which a double-opening door to which a hinge of the present invention is attached is closed. Figure 2 is a longitudinal side view of the hinge of the present invention. Figure 3 is an exploded view of the fixed support foot and coil spring mechanism of the same hinge. Figure 4 is a view along line IV-IV of Figure 2, showing: when the door is opened to the left, it will be fixed to the spring shaft. The second driven portion is fixed, and the first driven portion that is allowed to be fixed (fixed to the cylindrical casing) is rotated by the driving member, and when the door is opened to the right, the first driven portion (fixed to the cylindrical casing) is driven. The fixed portion of the second driven portion (fixed to the spring shaft) is subjected to the operation of the fixing-rotating mechanism in which the driving member rotates. Fig. 5 is a view as seen from the line VV of Fig. 2, showing that when the door is opened to the left, the second driven portion (fixed to the spring shaft) is fixed, and the first (fixed to the cylindrical casing) is allowed. The driven portion is rotated by the driving member', and when the door is opened to the right, the first driven portion (fixed to the cylindrical casing) is fixed, and the second driven portion (fixed to the spring shaft) is allowed to receive the driving member. A diagram of the action of the rotating fixed-rotation mechanism. -18- (16) (16)1289627 [Description of main component symbols] 1 〇: hinge for door 1 2 : fixed support leg 12-1 : lower part 1 2 - 2 : large diameter part 1 2 - 3 : 1st small Diameter portion 12-4: second small diameter portion 14: hinge mounting plate 1 4 ': bottom end ring portion 15: thrust bearing 1 6 : coil spring mechanism portion 1 8 : damper mechanism 18-1: first roller 18-2: second roller 18-3: third roller 20: first recess 22: second recess 24: third recess 30: cylindrical base 30-1: large diameter portion 30-2: first small diameter Part 3 0-3 : 2nd small diameter part 30-4 : 4th recessed part 30-5 : 5th recessed part -19 (17) (17) 1289627 30-6 : 6th recessed part 3 0 - 7 : 7th recessed part 3 2: cylindrical casing (first pivoting member) 34: spring shaft (second pivoting member) 34-1: upper end portion 3 4 - 2 . lower contact 36: coil spring (spring) 4 0 : bearing member 42: Drive member 46: first driven portion 46-1: first through hole 4 8 : fixing member 5 0 : damper cylinder 50-1 : upper chamber 50-2 : lower chamber 5 2 : second driven portion 5 2 -1 : 2nd through hole 54 : Thrust bearing 56 : Piston 5 6 -1 : Separating member 56-2 : Through hole (first fluid passage) 5 8 : Piston rotary drive unit 60 : Fluid impedance adjusting member 6 1 : Manual rotation adjustment member -20- (18) (18) 1289627
64 :第2流體通路 P :樞軸線 D :門 L :門開口下部框部 T :頂樞軸 S :承受座 -21 -64: 2nd fluid passage P: pivot axis D: door L: lower opening of the door opening T: top pivot S: bearing seat -21 -