201240628 六、發明說明： 【發明所屬之技術領域】 本發明是有關一種用於將座楫 座椅或是任何其他座位機構 之座架和背架傾斜角度同步化的梦 m 土 裒置’此同步化動作則是 相對於相對應之底座而定，亦即B妒糾 P丨疋此夠明確地對應至該座 架和背架之相互傾斜角&，並且用以決定此一傾斜角度來 作為使用㈣重和使用者在運動中倚靠至座椅背部之靠背 種類的作動結果。 【先前技術】 在先前技術中，此種同步化裝置係為習知，其中二個 相互平行之第一曲柄，以及二個亦是相互平行之第二曲柄 分別是於座架之前部位和後部位處，來將座架連接至座椅 底座，於疋，結合相同座架組成二個四連桿，每一個四連 才干則疋被配置於座椅之一側邊上。此種同步化裝置以是藉 由具有一位於座椅本身之底座上的支點之槓桿作用為較適 且，用以k供在運動方面受到該四連桿所限制之座架。 應注意的是以下内容係參考此種具有一個四連桿之同 乂化裝置’此種四連桿是由二個以欽鍵固定至座椅底座之 曲柄所組成’且此二曲柄則分別是於座架之前部位和後部 位處而被連接至座架，理論上是可以採用一個此種類的四 連桿’以及由於係採用此種方式，描述内容得以被簡化。 舉例而言，以DUPART名義之法國專利FR 2045120揭 示出此種藉由四連桿之作動，用以將座架和座椅背架傾斜 201240628 的同步化裝置，四速士圼县彳签 連杯疋僅具有二個以鉸鏈連接於座位底 上與座架之間的曲柄，以及帶有二臂狀部件之槓桿，此二 臂狀部件則是具有位於相同底座上之支點，並且其令—個 臂狀部件是整合至座椅㈣，另外—個臂狀部件係作動於 :架：後部位上’用以依據椅背之角度和傾斜方向來將座 架抬焉或拉下。 然而，雖然此種解決方案之機械作動方式較為容易， 但是由於使用者在與其本身作動至座位上之體重相反的方 向上，將會在椅背上承受到相當大的作用力 所提及帶有二臂狀部件之槓桿尺寸必須減小的結果。… 此外，由於所描述裝置的幾何學關係，t亥DUPART專 利並未以該座位之前部位的抬高或拉下係大於該座位之後 部位的抬高或拉下的這種方式，在變化該椅背傾斜角度 時’同％將該前部位和後部位抬高或拉下。 以NIK〇V名義之德國專利申請案DE 3735256描述-❹椅背部和座位之傾斜角度的同步化裝置，纟中的四連 干匕3肖々丙其中-個曲柄在前和另外-個曲柄在後， 人曲柄則疋以鉸鏈連接於座椅的座架與座椅的底座之 間，而且其中座举县站& λ 朱疋破整合至此種四連桿之後曲柄。 前曲柄和後曲柄則是相對於垂直方向，以不同方向傾 斜’亦=倘若前曲柄在相對於垂直方向之逆時針方向 上以大銳角度被傾斜，接著，後曲柄則是在相對於垂 直方向之順時針方而μ 万勹上，以一尖銳角度被傾斜，和/或反之 亦然。 201240628 並未被全部使用者深入瞭解之此種解決方案於椅背的 傾斜角度改變時中座椅之前部位將被抬高，並且座椅 的後部位同時被拉下，或是反之亦然。 此外，由於作動至座椅和槓桿臂上的重量不會出現太 久，難以將椅背傾斜的問題似乎無法藉由NIKOV的裝置來 解決。 以SATO辦公室名義之國際專利申請案w〇 2〇〇8/ 067947揭示出—種用於將座椅之座架和背架之傾斜角度同 步化的裝置，纟包含四連桿，其中二個曲柄是以鉸鏈連接 至座椅底座，分別到達座架之前部位和後部位，以及帶有 二臂狀部件之槓桿，此槓桿則是具有位於後曲柄之末端延 伸部位上的支點。#由滑件之作動，該二臂狀部件的其中 之一臂狀部件是受到座架之前部位所拘束，於是’另外一 個臂狀部件被整合至背架。 同樣地’言玄SATO辦公室之解決方案所提供的椅背旋 轉結果’導致座椅之前部位被抬高，並且相同座椅之後部 位則同時被拉下，’然而所產生的❹效果並未受到使用者 肯定。 此外，採用-個由在延伸小孔内滑動之銷所組成的滑 件，並且此滑件是被限制於上述的槓桿與座架之間，此項 結果對於SATG辦公室之裝置將會造成須具有較高工作和 組裝精確度之要求。 於是，本發明之目的是揭示出—種用於將座椅背部和 座位或是任何其他乘座機構之傾斜角度同步化的裝置，並 201240628 且未曾出現習知技術的缺點，隨後，導致機械構造得到簡 化和使用者感到舒適。 本發明之另外-項目的是提供此種同步化裝置，用以 容許使用者能夠相對於其本身之體重，來簡單和有效地調 整椅背的傾斜角度，以及隨後調整座位的傾斜角度，以此 方式用以得到容許使用者具有最佳姿勢之座位構形。 【發明内容】 依照獨立申請專利範圍第一項和隨後的相關申請專利 範圍、，藉由用於將座椅背部和座位之傾斜角度同步化的裝 置，以上目的和其他目的能夠被得到。 依照本發明，用於將座椅背部和座位之傾斜角度同+ 化的裝置包含一背架、一座架和受到座椅之底座所拘束或 是與座椅之底座一致（相結合“卜支架，連同至少—個 以錢鏈連接至此支架和座架之前部位的第—前曲柄，以及 至少-個以鉸料接至此支架和座架之後部位的第二後曲 柄’該第-曲柄和第二曲柄共同組成具有座架之 。 本發明之裝置所提供的座椅背架則以是與上述干 曲柄整合在一起為較適宜。 用於將座架 至少一個彈 ’此彈簧則 銷與上述座 依照本發明之較佳觀點，本裝置亦是包含 回復朝向支架之彈性機構，此彈性機構以是由 f (例如是圓柱形螺旋彈簧）所組成為較適宜 是被配置於在座架上之上述第二（後）曲柄的 椅支架的前部位中間。 201240628 依照本發明之另外— 貝权佳觀點，雖然上述之裝置的 6亥第一（前）曲柄和第_ r 弟一（後）曲柄疋相對於垂直方向而 以相同方式保持傾斜，嗲………為 β亥一曲柄相對於垂直方向之個別不 同弧角相互之間則是有所差異。 如同本項專利申請者實際驗證過之結果，此種裝置之 極度簡化構造是能夠容許使用者方便和有效地調整座椅背 部和座位的倾斜# '、X，用以得到針對使用者所需之極度舒 週姿勢。 此外’在其較佳實施例中，於此所得到之此裝置的幾 何尺寸疋办3午同步抬高或拉下座架之前部位和後部位，孰 =該項技術者明顯得知以此方式，沿著垂直方向，座架之 前部位的抬高或拉下動作是可能會大於座架之相對應後部 位的抬高或拉下動作。 【實施方式】 /考IW附圖形’依照本發明之較佳觀點， 用於將座椅背部和座位之傾斜角度同步化的裝i i在此所 表:出來’依照本發明之較佳觀點，其包含座架2 (座椅座 :疋採用習知方式與其相連接）、背帛13(座椅背部是與 相連接），以及受到座椅之底座14所拘束的支架5，例 ^ 冬-、相同底座14整合在一起之銷挾緊進入至支架 的套筒12内，支架5則是具有該套筒12。 同步化梦9? 1 、置1亦疋包含至少一個第一前曲柄3，以及至 少一個第二猞瓲. 交曲柄4’該二曲柄將座架2連接至支架5,用 201240628 以連同該座架2共同組成四連桿2、3、4。 在此所說明之較佳實施例中，詳加描述出前曲柄3是 藉由銷6和7於其末端處，分別裝設鉸鏈連接至支架$和 座架2之前部位2f，同時，後曲柄4則是藉由銷""，分 別裝設鉸鏈連接至支架5和相同座架2之後部位。 如同在圖3中可以特別地看到，依照本發明之同步化 裝置在此被表示出以是具有與四連桿2、3、4之前曲柄3 整合在-起的背$ 13為較有利。參考圖丄和圖2，背架ι3 特別被製成是與前曲柄3之後部位3 r整合在一起。 以此方式，如同貫際上所得知之内容，由於背架1 3所 具有之最長槓桿臂，以及因為作動於座椅背部之作用力被 傳送至此裝置之前曲柄3’當使用者以其本身之體重倚靠至 座位時，通常是較低的負載係作動至前曲柄3上，藉由使 用者得以非常有效地完成座椅背部傾斜角度的調節作用， 以及隨後之座位傾斜角度的調節作用，此項結果導致容易 得到座椅之構形，用以容許使用者依據其本身之體重而得 到舒適姿勢。 應瞭解的是雖然在此僅表示出#描述一個四連桿卜 3、4,依照本發明之較佳實施例’在此所示之同步化裝置^ I以包含二個相互平行之相同四連桿，該二個四連桿是被 女置於座架2之二側邊處，使得在此項應用實例中，背架 Π能夠被整合至此裝置所具有之二個相互平行 前 曲柄。 刖 再一次參考上述之四連桿2、3、4，依照本發明之較佳 201240628 觀點，座架2之後部位2r和支架5是相互連接至彈簧ι〇， 此彈簧則是用以阻擋座架2之相同後部位2r的位移是從支 架5離開，受到阻擋之位移在圖形中係從相同座架2之啟 始位置，以逆時針方向旋轉；於此啟始位置處，其中座架2 是大致上呈水平，且背架13是位於其與垂直方向相對之最 低傾斜位置。 在此所示之本發明實施例中，彈簧10以是一種圓柱形 螺旋彈f為較有利，於其末端處作動，以及藉㈣u而分 別被拘束（以鉸鏈連接）至支架5，並且藉由銷9而分別被 拘束（以鉸鏈連接）至座架2之後部纟2r，依序將該後曲 柄4限制於座架2之後部位2r。 觀察得知，舉例而言和並非用於限制之目的，在二個 四連桿之應用實例中，回復彈簀1〇可以是二個或更多個， 並且是被配置於座帛2與支架5之間。此外，在本發明之 其他實施例中，彈簧10是可以被在該項技術令的任何其他 習知回復用彈性機構所取代。 依照本發明之較佳觀點，四連桿2、3、4可以包含用 於將-個曲柄或另—曲柄3、4之順時針旋轉和/或逆時針旋 轉停止住的扣件，此扣件被構形成為使得當座椅背部13之 背架旋轉動作朝向相對於垂直方向的更大傾斜角度時，以 及接著，當前曲柄3沿著在圖形中之銷,6而以逆時針方向 旋轉時，座架2之前部位2f和後部位2r的同步抬高動作將 會發生，以此方式，前部位2f^著垂直方向之抬高範圍是 大於後部位2 f之同步抬高動作。 201240628 熟習該項技術者將可明顯得知，在背架i3之相反方向 的旋轉動作（在圖形中是順時針方向）將會導致座架2之 後部位2Γ和前部位2f同步被拉下，以此方式，座架2之前 部位2£沿著垂直方向的拉下動作將會大於座架2之後部位 2r的同步接下動作。 沾習該項技術者將可明顯 篆 β a，.、，負侍知，迫樣的一種技術效用 疋基於下列事實而產生，雖 雖然相互之間是具有不同角度， 〇系一曲抦3 ' 4經常是相斜於系士丄， 直方向而以相同方式保持傾 斜，使仵該二曲柄3、4钟执 . ^ b b句破配置在相對於垂直軸之相同 〇 處‘为架U是以相對於相鬥舌古 # 44 Μ f於相同垂直方向之新月形角度 :寺：：時，防止使用者對於座架2之後部 的不舒適感覺。 度玍/'凡 另外，在此所示之實施例中，該二曲柄3、4之並非過 度（此不同長度則被考量係為藉由介於銷 間之距離所提供> & >，， > „ 供之曲柄3的有效長度），以及介 之間與介於鎖6、只 ；为9、7 8之間的距離，接著是與ώ 1 於水平方向所對“ ^ , 者疋藉由則曲柄3相對 V對應的角度（在圖形中是 角，同時藉由後時針方向）是銳 W精由谈曲柄4才目對於水平 時針方向）將合值、“ a… 斤對應的角度（逆 S傳送更具調節性的舒 標的。 W 4 T本發明之裝置 '步應瞭解的是在此未表示出 中，裝置1 It 一 + h 1 之本發明實施例 步包含一個或更多個用於 斜角度阻擋的額外牆M '將座椅背部之傾 I知，除了先前所摇B m ^ °亥項技術中為 k及之用於將—個和/或另外—個曲柄3、 201240628 4之旋轉範圍限制住的限制 絲+ ^. 用止動件以外，在一種或二種旋 轉方式中，▲ §亥機構被使用者 、，„ , 在作動時’此種額外機構係用 以防止背架1 3和座架2被進—舟 备 步灰轉，接著，避免四連桿 2、3、4被進一步產生運動。 在此所示之裝置的操作方式如下。 豸方架13上並未承受 $又員載時，亦即是使用者並未坐在 ，在座椅背部上時’作動中之彈菁1〇將座架2維持於 其啟始位置，亦即是大致上 田*人丄 尺+。因為介於相同背架13 …柄3之間的相互鎖附限制作用，絲2之大致上保 =水平的啟始位置則是對應至相對於背架13之垂直方向的 最低傾斜位置》 當使用者-旦坐下'倚靠至座椅背部上時使用者將 會施加作用力至背架13上，雖然此作用力是與彈簧心 :動方向相反，該作用力將會導致相同背架13沿著銷“ 生旋轉（在圖形中是以逆時針方向），並且由於共同的 限制作用’相同的前曲柄3將被拘束至底座"之支_ % 因為介於依照本發明之裝置i不同部件中間的限制作 用’這樣的-旋轉動作亦是可以被反應至四連桿2、3、* 之其餘部件，特別是用以導致後曲柄4能夠沿著其本身 枢，點8而旋轉到達支架5 (在圖形中是以逆時針方向）， 接者，座帛2沿著搖擺中心之旋轉動作亦將隨著時間的經 過而改變。 如同先前所提及之内容，依照本發明之較佳觀點在 此所說明之四連桿2、3、4的特殊形狀將會導致座架2之 12 201240628 後部位2r和前部位2f同時被抬高，在上述之旋轉過程中， 後部位2r沿著垂直方向之抬高動作是低於沿著座架2之前 部位2f的抬高動作。 藉由彈簧1 0所施加之用於阻擋座椅背部丨3產生座架 旋轉的作肖丨容許使用纟確認具有#合其本身冑求之相同 背架13的較佳傾斜角度。 應：解的是用於將支架5(以及後續之座椅的底座 14)、背架13和座架2相互限制住之四連桿2、3、4的特 殊幾何形狀’連同彈簣1G之正確尺寸，將可容許使用者得 到極度精確和有效之座椅背部傾斜角度的調節作用，亦可 用以分配使用者本身之體重。 ^ ，當使用者決定到達座椅背部相對於垂直方向之 ^低傾斜角度時，藉由降低施加至背架13上的負載，或是 當使用者決定站起離開座椅時’彈簧1〇之作動造成彈簧： 身回復到其尚未變形的啟始位置（在2中可以看出）， 此項結果將可導致曲柄3、4分別沿著鎖6、8 針方向），將座…後回復朝向啟= 置接者，再將背架13回復。 L圖式簡單說明】 ::說明和非限制用之目的，參考隨附圖形 之較佳實施例將被描述，圖形中： Η :1為依照本發明之用於將座椅背部 度同步化的裝置之部份側視圖，其中描述出座椅背二: 13 201240628 配置於其最高傾斜位置處； 圖2為圖1之裝置的部份側視圖，其中描述出座椅背 部是被配置於其最低傾斜位置處； 圖2為具有在圖1或圖2中所描述之裝置的座椅構造； 以及 圖4為圖1和圖2之裝置的部份機械式構造。 【主要元件符號說明】 14201240628 VI. Description of the Invention: [Technical Field] The present invention relates to a dream m-synchronization for synchronizing the tilt angle of a seat frame or a back frame of a seat seat or any other seat mechanism The action is determined relative to the corresponding base, that is, the B妒 correctively corresponds to the mutual tilt angle & and is used to determine the tilt angle for use. (4) The result of the work of the type of the backrest that the user leans against the back of the seat during exercise. [Prior Art] In the prior art, such a synchronizing device is conventional, in which two first cranks that are parallel to each other and two second cranks that are parallel to each other are respectively in front of and behind the mount. At the same time, the frame is connected to the seat base, and the two frames are combined with the same frame, and each of the four connectors is disposed on one side of the seat. Such a synchronizing device is preferably provided by a lever having a fulcrum on the base of the seat itself, and is adapted to be kinematically constrained by the four links. It should be noted that the following refers to such a homogenizing device having a four-bar linkage. The four-bar linkage is composed of two cranks that are fixed to the seat base by a key, and the two cranks are respectively The connection to the mount at the front and rear of the mount is theoretically possible with a four-bar linkage of this type and the description is simplified by this approach. For example, the French patent FR 2045120 in the name of DUPART reveals such a synchronization device for tilting the frame and the seat back frame 201240628 by means of a four-bar linkage, the four-speed Shishi County signing cup疋 only has two cranks hingedly connected between the seat bottom and the frame, and a lever with two arm members, the two arm members have fulcrums on the same base, and The arm member is integrated into the seat (4), and the other arm member is actuated on the frame: the rear portion is used to lift or pull the frame according to the angle and the oblique direction of the seat back. However, although the mechanical actuation of such a solution is relatively easy, the user will be subjected to considerable force on the back of the chair in the direction opposite to the weight of the seat itself. The lever size of the two-armed component must be reduced. ... In addition, due to the geometric relationship of the device described, the THAI DUPART patent does not change the chair in such a way that the elevation of the front part of the seat or the lowering of the seat is greater than the height of the seat after the seat is raised or pulled down. When the back tilt angle is 'the same %, the front part and the back part are raised or pulled down. German patent application DE 3735256 in the name of NIK〇V describes the synchronization device for the tilt angle of the back of the chair and the seat, the four consecutive cognac in the cymbal of the cymbal 3 々 々 其中 one of the cranks in front and the other - a crank in Thereafter, the human crank is hingedly connected between the seat frame of the seat and the base of the seat, and wherein the seat of the county station & λ 疋 整合 is integrated into the crank of the four-link. The front crank and the rear crank are inclined in different directions with respect to the vertical direction. Also, if the front crank is tilted at a sharp angle in a counterclockwise direction with respect to the vertical direction, then the rear crank is in a direction perpendicular to the vertical direction. It is clockwise and is tilted at a sharp angle, and/or vice versa. 201240628 This solution, which is not fully understood by all users, will be raised in the front part of the seat when the tilt angle of the seat back is changed, and the rear part of the seat will be pulled down at the same time, or vice versa. In addition, since the weight applied to the seat and the lever arm does not appear too long, the problem of difficulty in tilting the seat back does not seem to be solved by the NIKOV device. An international patent application in the name of the SATO office, WO 2,8/067,947, discloses a device for synchronizing the tilt angles of the seat frame and the back frame of the seat, the raft comprising four links, two of which are cranked It is hinged to the seat base, reaching the front and rear parts of the frame, respectively, and the lever with the two-armed part, which has a fulcrum on the end extension of the rear crank. #Action by the slider, one of the arms of the two arm members is restrained by the front portion of the frame, so that the other arm member is integrated into the back frame. Similarly, the result of the rotation of the seat back provided by the solution of the “Shenzhen SATO office” caused the front part of the seat to be raised and the part after the same seat to be pulled down at the same time, however, the resulting sputum effect was not used. Certainly. In addition, a slider consisting of a pin sliding in the extended aperture is used, and the slider is limited between the above-mentioned lever and the mount. This result will result in a device for the SATG office. Higher work and assembly accuracy requirements. Accordingly, it is an object of the present invention to disclose a device for synchronizing the tilt angle of a seat back with a seat or any other ride mechanism, and 201240628 without the disadvantages of the prior art, and subsequently resulting in mechanical construction Simplified and comfortable for the user. Another aspect of the present invention is to provide such a synchronization device for allowing a user to easily and effectively adjust the tilt angle of the seat back relative to its own weight, and subsequently adjust the tilt angle of the seat. The method is used to obtain a seat configuration that allows the user to have an optimal posture. SUMMARY OF THE INVENTION The above object and other objects can be attained by means of a device for synchronizing a tilt angle of a seat back and a seat in accordance with the first scope of the independent patent application and the scope of the related patent application. According to the present invention, the device for equating the inclination angle of the seat back and the seat includes a back frame, a frame and the base of the seat or the base of the seat (in combination with the bracket). Together with at least one first front crank connected to the bracket and the front portion of the mount with a money chain, and at least one second rear crank attached to the bracket and the rear portion of the mount 'the crank-and second crank The seat frame is provided with the seat frame. The seat back frame provided by the device of the present invention is preferably integrated with the dry crank. The frame is used to at least one of the frame. In a preferred aspect of the invention, the apparatus also includes an elastic mechanism that reverts toward the bracket, the resilient mechanism being comprised of f (e.g., a cylindrical coil spring), preferably configured to be disposed on the second of the mount ( The rear part of the front of the chair bracket of the crank. 201240628 In accordance with the present invention - Bequan Jia's point of view, although the above-mentioned device of the 6 Hai first (front) crank and the first _ r brother one (rear) crank Keeping the tilt in the same way with respect to the vertical direction, 嗲......the different arc angles of the β-Hui-Crank relative to the vertical direction are different from each other. As the result of the actual verification by the patent applicant, The extremely simplified construction of such a device allows the user to conveniently and efficiently adjust the tilt of the seat back and the seat #', X for obtaining an extremely comfortable posture for the user. In the example, the geometry of the device obtained here is 3 hours synchronously raised or pulled down the front part and the back part of the frame, 孰 = the technician clearly knows that in this way, along the vertical direction, the seat The raising or lowering action of the front part of the frame may be greater than the raising or lowering action of the corresponding rear part of the frame. [Embodiment] / IW Drawing 'in accordance with the preferred point of the present invention, The ii of the seat back and the angle of inclination of the seat are synchronized. Here, in accordance with a preferred aspect of the present invention, it includes a frame 2 (seat: 疋 connected to it by conventional means), backing 13 The back of the chair is connected to the base, and the bracket 5 bounded by the base 14 of the seat. For example, the pin that is integrated with the same base 14 is tightly inserted into the sleeve 12 of the bracket, and the bracket 5 has The sleeve 12. Synchronization dream 9? 1, set 1 also includes at least one first front crank 3, and at least one second cymbal. Cross crank 4' the two cranks connect the mount 2 to the bracket 5, with 201240628 to form four links 2, 3, 4 together with the mount 2. In the preferred embodiment illustrated herein, it is described in detail that the front crank 3 is mounted at its ends by pins 6 and 7, respectively. The hinge is connected to the bracket $ and the front portion 2f of the frame 2, and at the same time, the rear crank 4 is hingedly connected to the bracket 5 and the same frame 2 by means of a pin "". As can be seen in particular in Fig. 3, the synchronizing device according to the invention is here shown to be advantageous in that it has a back $13 integrated with the crank 3 before the four links 2, 3, 4. Referring to Fig. 2 and Fig. 2, the back frame ι3 is specially made to be integrated with the rear portion 3r of the front crank 3. In this way, as is known in the continuum, the longest lever arm of the back frame 13 and the crank 3' before the user actuates the back of the seat are transmitted to the device. When leaning against the seat, usually the lower load is actuated to the front crank 3, and the user can very effectively complete the adjustment of the seat back tilt angle and the subsequent adjustment of the seat tilt angle. This results in easy access to the configuration of the seat to allow the user to get a comfortable posture based on their own weight. It should be understood that although only a four-link 3, 4 is shown herein, in accordance with a preferred embodiment of the present invention, the synchronization device shown herein includes two identical four-connected parallels. The two four-bar linkages are placed on the side of the two sides of the frame 2 such that in this application example, the back frame can be integrated into the two mutually parallel front cranks of the device. Referring again to the four links 2, 3, 4 described above, in accordance with the preferred 201240628 aspect of the present invention, the rear portion 2r of the mount 2 and the bracket 5 are interconnected to the spring ι, which is used to block the mount. The displacement of the same rear portion 2r is from the bracket 5, and the displacement of the blocking is rotated in the counterclockwise direction from the starting position of the same mount 2 in the figure; at this starting position, the mount 2 is It is substantially horizontal and the back frame 13 is at its lowest tilt position opposite to the vertical direction. In the embodiment of the invention shown here, the spring 10 is advantageously a cylindrical helical bomb f, is actuated at its end, and is constrained (joined by hinge) to the bracket 5 by means of (iv) u, and by The pins 9 are respectively restrained (joined by hinges) to the rear portion r2r of the mount 2, and the rear crank 4 is sequentially restricted to the rear portion 2r of the mount 2. It is observed that, for example and not for the purpose of limitation, in the application example of two four-links, the return magazine 1〇 may be two or more, and is disposed on the seat 2 and the bracket Between 5 Moreover, in other embodiments of the invention, the spring 10 is replaceable by any other conventional resilient mechanism for use in the art. In accordance with a preferred aspect of the present invention, the four links 2, 3, 4 may include fasteners for stopping the clockwise rotation and/or counterclockwise rotation of the one crank or the other cranks 3, 4, the fastener Is configured such that when the back frame rotation motion of the seat back 13 is oriented at a greater inclination angle with respect to the vertical direction, and then, the current crank 3 is rotated counterclockwise along the pin 6 in the figure, The synchronous raising operation of the front portion 2f and the rear portion 2r of the frame 2 will occur. In this way, the elevation range of the front portion 2f^the vertical direction is greater than the synchronous elevation operation of the rear portion 2f. 201240628 It will be apparent to those skilled in the art that the rotation in the opposite direction of the back frame i3 (clockwise in the figure) will cause the portion 2Γ and the front portion 2f of the frame 2 to be pulled down simultaneously, In this way, the pulling action of the front portion 2 of the frame 2 in the vertical direction will be greater than the synchronous lowering action of the portion 2r behind the frame 2. Those who are exposed to this technology will be able to clearly 篆β a,.,, negative servant, a technical utility of forced 疋 based on the following facts, although although they have different angles, 〇系一曲抦 3 ' 4 is often inclined to the gentry, straight and in the same way to keep the tilt, so that the two cranks 3, 4 clocks. ^ bb sentence broken configuration in the same 相对 relative to the vertical axis 'for the U Relative to the phase of the ancient tongue #44 Μ f in the same vertical direction of the crescent angle: Temple::, to prevent the user from feeling uncomfortable at the rear of the frame 2. In addition, in the embodiment shown here, the two cranks 3, 4 are not excessive (this different length is considered to be provided by the distance between the pins >&>, , > „ the effective length of the crank 3, and the distance between the media and the lock 6, only; 9 and 7 8 , followed by the ώ 1 in the horizontal direction of “ ^ , 疋By the angle corresponding to the crank 3 relative to V (in the figure is the angle, while by the back-to-clock direction) is the sharp W fine by the arbor 4, the head of the horizontal hour hand direction) will be the value, "a ... kg corresponding angle (Inverse S transmits a more accommodating sufficiency. W 4 T device of the invention 'steps should be understood that the embodiment of the invention of device 1 It + h 1 contains one or more An additional wall M' for obstructing the angle of the seat, knowing the tilt of the back of the seat, except for the previously shaken B m ^ ° in the technique of k, which is used for the same and/or another crank 3. 201240628 4The rotation range is limited by the limit wire + ^. In addition to the stopper, in one or two rotation modes, ▲ § hai By the user, „, when actuating, this additional mechanism is used to prevent the back frame 13 and the frame 2 from being pushed into the boat, and then avoiding the four links 2, 3, 4 being further The movement shown here is as follows. The operation of the device shown here is as follows: When the frame 13 is not subjected to $ and the load is carried, that is, the user is not sitting, and the action is in the back of the seat. 1〇 Maintaining the frame 2 in its starting position, that is, roughly the upper row of people*. Because of the mutual locking restriction between the same back frame 13 and the handle 3, the wire 2 is substantially guaranteed. The horizontal starting position corresponds to the lowest tilt position relative to the vertical direction of the back frame 13" When the user sits down to rest on the back of the seat, the user will apply a force to the back frame 13, Although this force is opposite to the spring heart: the direction of the force will cause the same back frame 13 to "rotate" along the pin (counterclockwise in the figure) and due to the common limiting effect 'the same front The crank 3 will be restrained to the base " _ % because of the device according to the invention The limiting effect between the different parts of the i's - such a rotating action can also be reacted to the remaining components of the four links 2, 3, *, in particular to cause the rear crank 4 to pivot along its own point, point 8 Arriving at the bracket 5 (counterclockwise in the figure), the rotation of the seat 2 along the center of the swing will also change over time. As previously mentioned, in accordance with the present invention, The special shape of the four links 2, 3, 4 described here will cause the rear part 2r and the front part 2f of the 12, 2012, 406, 2012, frame 2, to be raised at the same time, during the above rotation, the rear part 2r along The raising operation in the vertical direction is lower than the raising operation along the front portion 2f of the mount 2. The rotation of the seat frame by the spring 10 applied to block the seat back 丨 3 allows the use of 纟 to confirm the preferred angle of inclination of the same back frame 13 with its own request. Should be: the special geometry of the four links 2, 3, 4 used to restrain the bracket 5 (and the base 14 of the subsequent seat), the back frame 13 and the frame 2 from each other together with the magazine 1G The correct size will allow the user to obtain an extremely precise and effective adjustment of the tilt angle of the seat back, as well as to distribute the weight of the user. ^, when the user decides to reach the low tilt angle of the back of the seat with respect to the vertical direction, by reducing the load applied to the back frame 13, or when the user decides to stand up and leave the seat, the spring 1 Actuating causes the spring: the body returns to its undeformed starting position (as can be seen in 2), this result will cause the cranks 3, 4 to follow the locks 6 and 8 respectively), and the seat will be rearward Start = Adapter, then return the back frame 13. BRIEF DESCRIPTION OF THE DRAWINGS The following description will be made with reference to the preferred embodiments of the drawings, in which: Η: 1 is used to synchronize the back of the seat according to the present invention. Partial side view of the device, which depicts the seat back two: 13 201240628 is placed at its highest tilt position; Figure 2 is a partial side view of the device of Figure 1, which depicts the seat back is configured at its lowest 2 is a seat configuration having the device described in FIG. 1 or FIG. 2; and FIG. 4 is a partial mechanical configuration of the device of FIGS. 1 and 2. [Main component symbol description] 14