經濟部中央梯準局貝工消费合作社印策 A7 B7 五、發明説明) 〔發明所靥之技術領域〕 本發明，係關於設在備有沿支柱昇降的車架 (Carriage )之車輛整備用昇降機，響應前述車架的俯衝 而使其下降停止之安全裝置。 〔習知技藝〕 在二柱式或四柱式的車輛整備用昇降機，備有車輛承 接台，設有沿支柱昇降之車架，該車架將由鏈或鋼索等鋼 索體昇降動作。同時在車架，備有在意外事態，即鏈等斷 掉，或油壓急激地降低等時，防止車架落下之安全裝置。 做爲該安全裝置，在例如實公昭4 6 — 2 6 7 3 2號公 報，揭示有在吊下昇降機台的鋼索，使軸著在昇降機台之 L形停止器的一端壓接，一方面在支柱內，設置能由前述 L形停止器之轉動卡止其他端的緊急用懸架欄，在鋼索斷 掉時，L形停止器會轉動而他端會卡止在緊急用懸架欄之 創思，同時在實公平5 — 1 2 2 4 0號公報和實公平7 — 1 4 3 2 0號公報，揭示有，沿著支柱將架子，而在車架 將卡止爪分別設置，同時一面把卡止爪向和架子的卡止方 向架勢，使設在卡止爪之接觸子和分配凸輪等接觸在鏈， 在平常時使之阻止和架子的卡止，當鍵斷掉，或張力減弱 等時，卡止爪會和架子卡止而使車架的下降停止之創思。 〔發明所要解決之課題〕 因上述安全裝置，皆係只在鍵等斷掉，或其張力減弱 本紙張尺度適用中國國家揉準（CNS ) A4規格（210X297公釐） -4- (請先閱讀背面之注f項再填寫本頁)Instruction A7, B7, Shellfish Consumer Cooperative, Central Stairway Bureau of the Ministry of Economic Affairs [Explanation of the invention] [Technical field of the invention] The present invention relates to a stand-by elevator for a vehicle provided with a carriage (Carriage) that moves along a pillar A safety device that stops the descending of the frame in response to the dive of the aforementioned frame. [Knowledge] The two-post or four-post vehicle lifts are equipped with a vehicle receiving platform and are equipped with a frame for lifting along the pillars. The frame will be lifted by a steel cable body such as a chain or steel cable. At the same time, the frame is equipped with safety devices to prevent the frame from falling in the event of an unexpected situation, such as a broken chain, or a sharp drop in oil pressure. As the safety device, for example, Shiko Sho 4 6-2 6 7 3 2 discloses that a wire rope of a lift table is hoisted and the shaft is crimped to one end of an L-shaped stopper of the lift table. An emergency suspension bar capable of locking the other end by the rotation of the aforementioned L-shaped stopper is provided in the pillar. When the cable is broken, the L-shaped stopper will rotate and the other end will be locked in the emergency suspension bar. The Real Fair No. 5 — 1 2 2 4 0 and the Real Fair No. 7 — 1 4 3 2 0 disclose that the racks are installed along the pillars, and the locking claws are separately installed in the frame, and the locks are locked at the same time. The claw direction and the locking direction of the rack are postured, so that the contactor and the distribution cam provided on the locking claw are brought into contact with the chain, and it is usually prevented from being locked with the rack, when the key is broken, or the tension is weakened, etc. The idea that the locking claws will be locked with the frame to stop the lowering of the frame. [Problems to be Solved by the Invention] Because the above safety devices are only broken at the keys, etc., or their tension is weakened, this paper size is applicable to China National Standard (CNS) A4 (210X297 mm) -4- (Please read first (Note f on the back, please fill out this page)
、tT 經濟部中央棣準局員工消费合作社印裂 Λ7 B7 五、發明説明& ) 時才會動作的構成，故在油壓之急激降低等驅動側的故 障，和由下降速度設定之失誤等的車架之俯衝，需要使其 他的檢知機構附屬而因應。 因此本發明之目的，係使之不只檢知鏈等之斷裂和張 力，也能因應油壓的急激降低等地，簡單地檢知車架本身 之下降速度，把由鏈及油壓等原因的車架之俯衝，以1個 安全裝置使之停止者。 〔爲了解決課題之裝置〕 爲了達成上述目的，申請專利範圍第1項之發明，其 特徵爲，在支柱或車架中之任何一方，設置按照前述車架 的下降旋轉之旋轉體，由其旋轉體到達所定的旋轉速度， 鎖固前述旋轉體之旋轉的鎖固機構，使由前述鎖固機構之 前述旋轉體的鎖固聯係前述車架之停止下降者》 同時，申請專利範圍第2項的發明，係除了申請專利 範圍第Ί項之目的外，爲了將按照車架之下降旋轉的旋轉 體，做爲簡單且合理之構成，把旋轉體做爲，被捲繞一端 連結在前述支柱或車架的他方側之鋼索體，向其鋼索體的 捲取方向旋轉加勢之桶者。 再者，申請專利範圍第3項的發明，係除了申請專利 範圍第1或2項之目的外，以將前述鎖固機構簡單地構成 做爲目的，把鎖固機構，做爲和前述旋轉體或桶同軸一體 旋轉之爪齒輪，和使中間部軸著在前爪齒輪近傍，設成能 夠搖動，在常態時尖端部在和前述爪齒輪非咬合位置之爪 本纸張尺度適用中國國家揉準（CNS ) Α4规格（210X297公釐） -5- (請先閲讀背面之注意事項再填寫本頁), TT The Ministry of Economic Affairs, Central Bureau of Standards, Employees' Consumer Cooperatives, 77 B7 V. Description of the invention & The dive of the frame of the vehicle needs to be affiliated with other detection agencies. Therefore, the purpose of the present invention is not only to detect the breakage and tension of the chain, etc., but also to simply detect the falling speed of the frame itself in response to the rapid decrease of the oil pressure, etc. The frame is swooped and stopped by a safety device. [Apparatus for solving the problem] In order to achieve the above-mentioned object, the invention claimed in claim 1 is characterized in that a rotating body that rotates in accordance with the lowering of the aforementioned frame is provided on either the pillar or the frame, and is rotated by the same When the body reaches a predetermined rotation speed, the locking mechanism that locks the rotation of the rotating body, so that the locking of the rotating body of the locking mechanism is in contact with the person who stopped the frame from falling down. In addition to the purpose of the scope of patent application, the invention is a simple and reasonable structure for the rotating body that rotates according to the lowering of the frame. The rotating body is made with the wound end connected to the aforementioned pillar or car. The steel cable body on the other side of the frame rotates the boosted barrel in the winding direction of the steel cable body. In addition, the invention in the third scope of the patent application is for the purpose of simply constructing the aforementioned locking mechanism in addition to the purposes of the first or second scope of the patent application, and the locking mechanism is used as the rotating body. The claw gear that rotates coaxially with the barrel, and the middle part is pivoted near the front claw gear. It is set to be able to shake. In normal state, the claw gear is in the non-engaging position with the claw gear. (CNS) Α4 specification (210X297 mm) -5- (Please read the precautions on the back before filling this page)
、1T A7 ___B7__ 五、發明説明6 ) 構件，和在常態將一面與前述爪構件的基端部接觸，而和 前述旋轉體或桶以同軸一體旋轉，由和前述旋轉體或桶一 齊到達所定之旋轉速度，使前述爪構件的基端部離開，而 把前述尖端部向和前述爪齒輪之咬合位置加勢的凸輪構件 者。 更且，申請專利範圍第4項的發明，係除了申請專利 範圍第2，3項之目的外，爲了將對俯衝之因應有效地進 行，一方面在前述支柱內垂設支持柱，在前述支柱式車架 的他方側，設置與前述支持柱正交之轉動軸，在其轉動 軸，突設對前述支持柱遊插成正交狀的卡止板，在其卡止 板連結前述鋼索體之一端，並且在前述轉動軸，設置將抗 拒由前述鋼索體的拉力，把前述卡止板向前述拉力之相反 方向加勢的彈性手段，和把由其彈性手段被加勢之前述卡 止板，支持成水平姿勢之規劃手段者。 〔實施例〕 以下，根據圖面說明本發明的實施例。 經濟部中央標準局貝工消费合作社印製 第1圖，係二柱式車輛整備用昇降機之全體圖，1， 1 /係保持所定間隔垂設的支柱，在一方之支柱，裝備有 油壓缸2，在兩支柱1，1 /，分別有在前端備有承接台 4，4 /之車架3，3 <，以水平且互相對向的狀態設成 能夠上下動。同時在前述油壓缸2之活塞2 a的前端，有 鏈輪5安裝成自由轉動，在其支柱1之下端，和他方的支 柱1 /之上下端，分別設有引導鏈輪6a，6b，6c， -6- (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） A7 B7 經濟部中央標準局貝工消费合作社印製 五、 發明説明4 ) I 6 d 〇 並且7 係用以吊下車架 3 9 3 /的鏈 條 9 該 鏈 條 1 1 I 7 在支柱1 側 » 係將一端 在比 刖 述 鏈 輪與5 之 最 上 位 置 1 1 1 下 方部位固定在 支 柱1內， 由此 向 上 方 拉起折 回 掛在 鏈 輪 請 1 1 5 把 其中途 結 α 在車架3 的基 端 部 以引導 鏈 輪 6 a 9 先 閱 -ft J 6 b 之 順序接 掛， 而在支柱1 一側 • 向引導 鏈 輪 6 C > *Ά 背 | 6 d 折 回掛上 j 把他端結合在另- —_ 方 的車架 3 之 基 細 端 套 1 I 部 ο 再 者在各 車 架 3，3 — 的基 端 側 > 上下分 有 引 導 滾 子 事 項 再 1 1 3 5 ( 參照第 3 圖 )，在支 柱1 1 內轉動 9 進 行 引 導 填 寫- 本 农 上 下 移 動的車架 3 頁 1 1 因 此，在 該 二 柱式車輛 整備 用 昇 降 機，以 油 壓 缸 2 的 1 動 作使 活塞桿 2 a 上升時， 鏈條 7 會 由 其即端 的 鏈 輪 5 之 1 I 上 升 被 拉近， 結 合 在鏈條7 的兩 車 架 3 ，3 / 會 沿 著 支 1 訂 I 柱 1 1 -上 升 〇 一方面， 使活 塞 桿 2 a下降 時 鏈 條 7 1 1 會 和 »八 刖 端的鏈 輪 5 之下降一 齊由 兩 車 架 3，3 之荷 重 被 1 1 送 出 9 兩車架 3 3 >會沿支柱： L ] L - 下降。 1 1 然 後，在此 係 安全裝置 8設 在 支 柱 1 一。 以 下 詳 細 ： t 1 說 明 等 2〜4 圖 所 示的安全 裝置 8 0 首 先，在 支 柱 1 刖 I 端 的 引 導鏈輪 6 d 之下方， 在軸 支 引 導 鏈輪6 d 的 支 持板 1 J I 9 之 下部，有 長 方 形之基板 10 的 上 Μ1Λ 端 ，以螺 栓 被 固 定 0 1 在 該 基 板1 0 之 .下端，有把持筒 1 1 句內側 ( 引 導 鏈 輪 1 1 6 d 的 正下側 ) 突 設成水平 ，在 其 把 持 筒1 1 使軸 心 的 1 I 軸 1 3 遊插之 tt-t. 做 爲 旋轉體的 桶1 2 經 由滾珠 軸承 1 4 • i I 1 4 軸 支成自 由 轉 動》該桶 12 係 在 外周固 定 鋼 線 1 5 1 的 _. 端 ，直接 地 鋼 線1 5捲 繞之 中 空 體 ，在內 部 設 置 使 螺 1 1 1 本紙張尺度逍用中國國家揉準（CNS ) A4规格（210Χ297公嫠） 經濟部中央標準扃貝工消费合作社印篥 A7 B7五、發明説明) 旋彈簧16捲繞在把持筒11的外周，使之和桶12內部 卡合，由此桶1 2向鋼線1 5的捲取方向（第2圖之左旋 轉方向）被旋轉加勢。 —方面，在基板1 0的外側，有前述桶1 2之軸1 3 突出，在其軸1 3，有做爲爪齒輪的鎖固板1 7，做爲凸 輪構件之凸輪板2 1 ，分別以同軸被固著。該鎖固板 1 7，係在正方形狀的本體1 8之4個頂點，分別形成向 右轉方向突出成放射狀的爪部1 9，1 9 .......同時在各 爪部1 9之右側緣，分別形成V字狀的咬合溝2 0的板狀 體。同時，雖然凸輪板2 1，係和鎖固板1 7之本體略相 同大小的正方形之板狀體，但是使各頂點和鎖固板1 7的 各爪部1 9，1 9 ··_〜··向周方向錯開而固定" 同時在基板1 0的前述鎖固板1 7之上方位置，有做 爲爪構件的搖動板2 3，由支軸2 2軸著成能夠搖動。該 搖動板2 3，把在第2圖的支軸2 2之右側做爲板狀，在 其下端軸著圓盤狀的搖動滾子2 4，一方面支軸2 2之左 側，形成向下方變細，能咬合在前述鎖固板1 7的各咬合 溝2 0之尖端部2 5，但是，因在常態設有搖動滾子2 4 的右側會變重，故搖動板2 3會向在轉方向被旋轉加勢， 成爲搖動滾子2 4擋接在凸輪板2 1之周緣者° 然後，在支柱1 —內，從引導鏈輪6d的下方相當於 桶1 2之背側的位置，將重設支持柱2 6 ，同時在車架 3 >內部，在相對面的側板2 7，2 7之間’將架設和前 述支持柱2 6正交的軸2 8，由該軸2 8把做爲轉動軸之 (請先W讀背面之注f項再填寫本頁) 本紙張尺度逍用中國國家揉準（CNS ) A4规格（210X297公釐） -8 - 經濟部中央標準局貝工消费合作社印策 A7 B7 五、發明説明) 卡止體29，軸著成能夠轉動。同時，在該卡止體29， 分別連結備有將遊插在前述支持柱2 6的卡止孔3 1之卡 止板3 0，和向其卡止板3 0的側方連成正交狀之連結板 3 2，在連結板3 2的上端，連結將捲繞在前述桶1 2之 鋼線15的他端，而在連結板3 2之下端，有使下端掛止 在側板2 7的拉力彈簧3 3之上端掛止。由此，在卡止板 3 0，將會加上由桶1 2的旋轉加勢之向上方的拉力，和 由拉力彈簧3 3之向下方的拉力，但是，因在常態時拉力 彈簧3 3之拉力設定成會比較大，故在卡止體29，會被 體予將連結板3 2和卡止板3 0向下方拉的旋轉力。更 且，卡止體2 9，係由設在側板2 7之停止器3 4，規制 成卡止板3 0會成爲水平姿勢（卡止孔3 1的軸心會和支 持柱2 6之軸心略一致）的旋轉位置。 在如上述地構成的安全裝置8，通常之車架3 #的上 升時，隨著車架3 z之移動，桶1 2會由螺旋彈簧1 6左 旋轉而捲取鋼線1 5，同時使鎖固板1 7和凸輪板2 1左 旋轉。此時，因搖動滾子2 4會沿凸輪板2 1的周緣轉 動，故搖動板2 3將會搖動》亦即，將會反覆進行搖動滾 子2 4在凸輪板2 1的頂點時，尖端部2 5將最靠近鎖固 板1 7，而在凸輪板2 1之各邊中央時，會最遠離的動 作。但是，此時由鎖固板1 7和凸輪板2 1向周方向之偏 差，尖端部2 5會成爲避開鎖固板1 7的爪部1 9之情 況，故兩者將不會干擾。 一方面，在車架3 >的下降時，隨著車架3 β之移動 I-;--—ί----...X---^----訂------Λ1 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家揉準（〇«)入4規格（2丨0><297公藿） -9- B7 五、發明説明t ) 會拉出鋼線1 5，桶1 2會抗拒螺旋彈簧1 6的旋轉加勢 而右旋轉，同時使鎖固板1 7和凸輪板2 1右旋轉。此 時，雖然搖動滾子2 4也將沿凸輪片板2 1的周緣轉動’ 而使搖動板2 3搖動，但是在車架3 >的通常之下降速 度，將會維持搖動滾子2 4經常和凸輪板2 1的周緣接觸 之狀態，和上升時一樣，尖端部2 5會進行反覆一面避開 鎖固板1 7的爪部1 9搖動之動作，兩者將不會干擾。 經濟部中央標準局貝工消费合作社印簟 然後，由鏈條7的斷裂或驅動系統之故障，或者下降 速度的設定失誤等，車架3 ’ 3 超過通常之下降速度而 下降時，因桶1 2及鎖固板1 7，凸輪板2 1的旋轉速度 也會加速，搖動滾子2 4將會從凸輪板2 1之周緣離開而 浮起。亦即，如第5圖所示，搖動板2 3的尖端部2 5將 維持降低，和鎖固板1 7的咬合溝2 0中之一個咬合，而 阻止鎖固板1 7的旋轉。因此，雖然桶1 2之旋轉也會強 制地停止，但是，因車架3，會想要更下降，故從鋼線 1 5的拉力，將會超過拉力彈簧3 3之拉力，把卡止板 3 0和連結板3 2向上方拉起》於是卡止孔3 1會咬入支 持柱2 6，由此時產生的摩擦力，會使車架3 <之下降停 止。因該摩擦力，係車架3 /的下降速度愈快時會變成愈 大，故會有效地作用，同時對鋼線1 5之負擔，也能夠減 少。 順使一提，即使有車架3 /上升時的速度加快，搖動 滾子2 4從凸輪板2 1離開之情況，因鎖固板1 7的爪部 1 9和尖端部2 5，係成爲照由鎖固板1 7的右旋轉才會 -10- (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家揉丰（CNS ) A4规格（210X297公漦） 經濟部中央標準局貝工消费合作社印製 A7 B7 五、發明説明6 ) 咬合之棘輪構造，故兩者不會咬合而使桶1 2停止。 如此地，根據本實施例時，因做爲由按照車架3 ， 3 >的下降速度之桶1 2的旋轉，變更鎖固板1 7和搖動 板2 3之尖端部2 5的咬合狀態，使設在車架3 <側之卡 止體2 9等的強制停止機構對應動作之構成，故和鏈條7 的狀態無關，檢知車架3，3 /的下降速度使之停止，能 夠成爲簡單。 再者，雖然在上述實施例，係將捲繞在桶1 2的鋼線 1 5之下端，連結在卡止體2 9等的強制停止機構，把桶 1 2之鎖固板接地聯係在車架3 /，但是也可以把鋼線 1 5的下端，直接連結在車架3 /，使由鎖固板1 7之鎖 固的桶1 2之停止旋轉，直結在停止車架3 <。 同時，在上述實施例中車架的強制停止機構，雖然做 爲由卡止孔3 1和支持柱2 6的摩擦力得到之構成，但 是，也可以如第6圖所示，做爲在支柱1 >側設置齒條 36，而在車架3 <側的軸28，把能咬合在鏈條36之 卡止爪3 7，設成自由轉動，且在常態使之以扭轉彈簧 等，設成和齒條3 6維持非卡止狀態*把鋼線1 5的下端 連結在該卡止爪3 7，在車架3 ，3 '之下降速度變快 時，由鋼線1 5的牽拉使卡止爪3 7向齒條3 6側旋轉， 使之做爲和齒條3 6卡止的構造等，也能夠採取其他之構 造。 一方面，桶12的旋轉，雖然係利用螺旋彈簧16， 但是，例如使捲繞在桶1 2的鋼線1 5之上端向下方垂下 —-I ^^1 -I- t ^^1 I- — r^i ^^1 L. Ακ. I ^^1 HI in an— - ·-'^, > i (請先閲讀背面之注意事項再填寫本頁} 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 經濟部中央標準局負工消费合作社印隶 A7 __'__B7 五、發明説明6 ) 而連結在均衝重量，利用由該負荷對鋼線1 5之拉力等， 只要能夠對桶1 2給予一方向的旋轉力之構造，可以適當 地變更。 再者，雖然在上述實施例，係將桶1 2和搖動板2 3 等速度檢知機構設在支持1/側，而把卡止體29等強制 停止機構設在車架3 ~側，但是，使之相反也同樣地能夠 構成安全裝置。更且，雖然安全裝置係只設在一方的支柱 側，但是也可以設在雙方之支柱，在他方側設置如以習知 技藝說明的，他之下降防止機構。當然也不限於二柱式， 也能夠把本發明採用在四柱式之車輛整備用昇降機。 〔發明之效果〕 根據申請專利範圍第1項的發明時，由採用按照車架 之下降而旋轉的前述旋轉體，和檢知該旋轉體之所定的旋 轉速度，將旋轉體鎖固之鎖固機構，將能簡單地檢知車架 的下降速度，能夠容易地進行據此：向急下降的因應。因 此，能夠和使車架昇降的鏈條等之斷裂和鬆弛等其狀態無 關，把俯衝的車架以1個安全裝置使之停止。 同時，申請專利範圍第2項的發明，雖然係旋轉體之 具體例，但是根據該發明時，除了申請專利範圍第1之效 果外，能夠把按照車架的下降速度旋轉之旋轉體’簡單且 合理地構成。 同時，申請專利範圍第3項的發明，雖然係鎖固機構 之具體例，但是根據本發明時’除了申請專利範圍第1或 (請先閲讀背面之注意事項再填寫本頁) 訂 本紙張尺度適用中國國家標率（CNS ) A4规格（210X297公釐） -12- 經濟部中央樣準局貝工消费合作社印裝 A7 ___B7 五、發明説明ήο ) 2項的效果外，能夠將轉體鎖固之鎖固機構，簡單且合理 地構成。 更且，申請專利範圍第4項的發明，雖然係使旋轉體 之鎖固間接地連繫在車架的下降停止之強制停止機構的例 子，根據本發明時，除了申請專利範圍第2項之效果外， 將成爲俯衝的車架之下降速度愈快，由支持柱和卡止板的 摩擦力會愈大，能夠有效地因應俯衝者。同時，對捲繞在 桶的鋼索體之負擔也能減輕。 〔圖面之簡單說明〕 第1圖，係二柱式車輛整備用昇降機之全體說明圖。 第2圖，係安全裝置的說明圖。 第3圖，係A矢視說明圖。 第4圖，係桶部份之擴大說明圖。 第5圖，係顯示安全裝置的動作狀態之說明圖。 第6圖，係顯示強制停止機構的變更例之說明圖。 〔符號之說明〕 1 ' 1 ^ ......支柱，2 ......油壓缸，3，3 -......車架， 7 ......鍵條，8 ......安全裝置，1 0 ......基板，1 2 ...... 桶，1 5……鋼線，1 7……鎖固板，2 0……咬合溝， 2 1 ......凸輪板，2 3 ......搖動板，2 4 ......搖動滾子， 2 5 ......尖端部，2 6 ......支持柱，2 9 ......卡止體， 3 1 ......卡止孔，3 3 ......拉力彈黄。 IJ— n ----II — Λ 、衣---_----訂 ί\ (請先閲讀背面之注意事項再填本頁) 本紙張又度逍用中國國家標率（CNS ) Α4规格（210X297公嫠） -13-、 1T A7 ___B7__ V. Description of the invention 6) The component, and normally contact one side with the base end of the claw member, and rotate coaxially with the rotating body or barrel, and reach the predetermined position together with the rotating body or barrel. A cam member that rotates the base member of the claw member away from the base member and increases the tip portion toward the meshing position of the claw gear. In addition, the invention in the fourth scope of the patent application, in addition to the purposes of the second and third scope of the patent application, in order to effectively respond to the dive, on the one hand, a support pillar is set up in the aforementioned pillar, and On the other side of the frame, a rotation axis orthogonal to the support column is provided, and a locking plate protruding orthogonally to the support column is protruded on the rotation axis, and the locking plate is connected to the steel cable body. One end, and the rotation shaft is provided with elastic means for resisting the pulling force of the steel cable body, forcing the locking plate in the opposite direction of the pulling force, and supporting the locking plate for which the elastic means is strengthened. Planning means of horizontal posture. [Examples] Hereinafter, examples of the present invention will be described with reference to the drawings. The first picture printed by the Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs is the whole picture of the two-pillar vehicle stand-by elevator. 1, 1 / is a pillar hanging at a predetermined interval, and one pillar is equipped with a hydraulic cylinder. 2. On the two pillars 1, 1 /, there is a frame 3, 3 < having a receiving platform 4, 4 / on the front end, respectively, and it is set to be able to move up and down in a horizontal and opposite state. At the same time, at the front end of the piston 2a of the hydraulic cylinder 2, a sprocket 5 is installed for free rotation, and guide sprocket wheels 6a, 6b are respectively provided at the lower end of the pillar 1 and the upper / lower ends of the other pillars 1, 6c, -6- (Please read the notes on the back before filling out this page) This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) A7 B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Description of the invention 4) I 6 d 〇 And 7 is a chain for hanging the frame 3 9 3/9 The chain 1 1 I 7 is on the side of the pillar 1 »The end is at the uppermost position than the sprocket and 5 described above 1 1 1 The lower part is fixed in the pillar 1 so that it is pulled upwards and folded back and hung on the sprocket. 1 1 5 Put the intermediate knot α on the base end of the frame 3 to guide the sprocket 6 a 9 Read -ft J 6 b is connected in order, and on the side of pillar 1 • Guide sprocket 6 C > * Ά 背 | 6 d Fold back and hang on j to combine his end with the base of the other-— square frame 3套 1 I 部 ο Furthermore, at the base end side of each frame 3, 3 — t; There are guide rollers up and down again 1 1 3 5 (refer to Figure 3), turn 9 in the pillar 1 1 to fill in the guide-Bennon moves the frame up and down 3 pages 1 1 Therefore, in this two-post type When the vehicle is equipped with a spare lift, and the piston rod 2 a is raised by the 1 action of the hydraulic cylinder 2, the chain 7 will be lifted by the sprocket 5 1 I at the end and pulled closer, and the two frames 3, 3 combined with the chain 7 / I will order I-pillar 1 1-ascend along the support 1. On the one hand, when the piston rod 2 a is lowered, the chain 7 1 1 will be lowered by the sprocket 5 of the eighth end by the load of the two frames 3, 3. 1 1 send out 9 two frames 3 3 > will go down the pillar: L] L-descend. 1 1 Then, the safety device 8 is set on the support post 1 1 here. The details are as follows: t 1 description etc. 2 ~ 4 safety device 8 shown in the figure. First, under the guide sprocket 6 d at the end of the pillar 1 刖 I, under the support plate 1 JI 9 of the shaft guide sprocket 6 d The upper M1Λ end of the rectangular base plate 10 is fixed with bolts 0 1 at the bottom of the base plate 10. The inner side of the holding cylinder 1 1 (directly below the guide sprocket 1 1 6 d) is protruded horizontally. In its holding cylinder 1 1 the shaft center 1 I shaft 1 3 oscillates tt-t. The barrel 1 2 as a rotating body is supported by a ball bearing 1 4 • i I 1 4 shafts can rotate freely. The barrel 12 At the _. End of the fixed steel wire 1 5 1 on the periphery, the steel wire 1 5 is wound directly into the hollow body, and the screw 1 1 1 is set in the paper. The paper size is in accordance with China National Standard (CNS) A4 (210 × 297). Public) Central Standard of the Ministry of Economic Affairs 扃 Bei Gong Consumer Cooperative Seal 7 A7 B7 V. Description of the invention) The coil spring 16 is wound around the outer periphery of the holding cylinder 11 and engages with the inside of the barrel 12, whereby the barrel 12 goes to the steel wire 1 5 take-up direction (2nd The left-handed rotation direction) is rotated applied potential. -On the outside of the base plate 10, the shaft 1 3 of the aforementioned barrel 12 protrudes, and on its shaft 13 there are a lock plate 17 as a claw gear and a cam plate 2 1 as a cam member, respectively Coaxially fixed. The locking plate 17 is attached to the four vertices of the square-shaped body 18, and forms the claw portions 19, 1 9 protruding radially to the right, respectively .... On the right edge of 19, V-shaped occlusal grooves 20 are plate-shaped bodies, respectively. At the same time, although the cam plate 21 is a square plate-shaped body of the same size as the body of the lock plate 17, each vertex and each claw portion 19 of the lock plate 17 are made. ·· It is staggered and fixed in the circumferential direction. At the same time, there is a swing plate 2 3 as a claw member above the above-mentioned locking plate 17 of the base plate 10, and it can be rocked by the support shaft 2 2 axis. This rocking plate 23 has a plate shape on the right side of the support shaft 2 2 in FIG. 2, and a disc-shaped rocking roller 2 4 is mounted on its lower end. On the one hand, the left side of the support shaft 2 2 is formed downward. It is thinner and can be engaged with the tip portion 25 of each of the engaging grooves 20 of the lock plate 17 described above. However, since the right side of the swing roller 2 4 provided in the normal state becomes heavier, the swing plate 2 3 will move toward The direction of rotation is increased by the rotation, so that the rocking roller 24 is blocked by the periphery of the cam plate 21. Then, within the pillar 1—from the position corresponding to the back side of the barrel 12 from below the guide sprocket 6d, Reset the support column 2 6 and at the same time inside the frame 3 > between the side plates 2 7 and 2 7 on the opposite side, 'the axis 2 8 orthogonal to the aforementioned support column 2 6 will be erected by the shaft 2 8 As the axis of rotation (please read the note f on the back side before filling this page) This paper size is in accordance with China National Standards (CNS) A4 (210X297 mm) -8-Shellfish Consumption of the Central Standards Bureau of the Ministry of Economic Affairs Cooperative cooperative policy A7 B7 V. Description of the invention) The locking body 29, the shaft can be rotated. At the same time, the locking bodies 29 are respectively connected with the locking plates 30 which are provided with the locking holes 31 inserted in the support posts 26, and are orthogonally connected to the sides of the locking plates 30. The connecting plate 32 is connected at the upper end of the connecting plate 32 to the other end of the steel wire 15 to be wound around the barrel 12. The lower end of the connecting plate 32 is provided with a pulling force to hang the lower end on the side plate 27. The upper end of the spring 3 3 hangs. Therefore, the locking plate 30 will be pulled upward by the rotation of the barrel 12 and upward by the tension of the barrel 12 and downward by the tension spring 33. However, in the normal state, the tension spring 33 Since the pulling force is set to be relatively large, the locking body 29 is subjected to a rotating force that pulls the connecting plate 32 and the locking plate 30 downward. In addition, the locking body 29 is a stopper 3 4 provided on the side plate 27, and the locking plate 30 is adjusted to a horizontal posture (the axis of the locking hole 31 and the axis of the supporting column 26 Slightly consistent heart). In the safety device 8 configured as described above, when the frame 3 # is generally raised, as the frame 3 z moves, the barrel 12 will be rotated by the coil spring 16 to the left and the steel wire 15 will be wound up at the same time. The locking plate 17 and the cam plate 21 are rotated left. At this time, the rocking roller 24 will rotate along the periphery of the cam plate 21, so the rocking plate 2 3 will be shaken. That is, when the rocking roller 2 4 is repeatedly turned on the apex of the cam plate 21, the tip The part 25 will be closest to the lock plate 17 and will move farthest when it is at the center of each side of the cam plate 21. However, at this time, due to the deviation in the circumferential direction between the lock plate 17 and the cam plate 21, the tip portion 25 will become the claw portion 19 that avoids the lock plate 17, so the two will not interfere. On the one hand, as the frame 3 > descends, with the movement of the frame 3 β I-; ---- ί ----... X --- ^ ---- order ----- -Λ1 (Please read the notes on the back before filling in this page) The paper size is applicable to Chinese national standards (〇 «) and 4 specifications (2 丨 0 > < 297 gong) -9- B7 V. Description of the invention t ) The steel wire 15 will be pulled out, and the barrel 12 will rotate to the right against the rotation of the coil spring 16 and at the same time, the lock plate 17 and the cam plate 21 will rotate to the right. At this time, although the rocking roller 24 will also rotate along the peripheral edge of the cam plate 21 to shake the rocking plate 23, but at the usual lowering speed of the frame 3 >, the rocking roller 2 4 will be maintained In the state of being always in contact with the peripheral edge of the cam plate 21, the tip portion 25 will repeatedly move away from the claw portion 19 of the locking plate 17 to shake, as in the case of rising, and the two will not interfere. After the seal of the Central Standards Bureau of the Ministry of Economic Affairs of the Shellfish Consumer Cooperative was broken by the chain 7 or the drive system was malfunctioned or the descent speed was set incorrectly, etc., when the frame 3 '3 fell below the usual descent speed, the barrel 1 2 And the locking plate 17 and the rotation speed of the cam plate 21 will also be accelerated. The rocking roller 2 4 will leave from the periphery of the cam plate 21 and float. That is, as shown in Fig. 5, the tip portion 25 of the rocking plate 23 is kept lowered and engages with one of the engaging grooves 20 of the locking plate 17 to prevent the rotation of the locking plate 17. Therefore, although the rotation of the barrel 12 will also be stopped forcibly, because the frame 3 will want to fall further, the pulling force from the steel wire 15 will exceed the pulling force of the tension spring 33, and the locking plate 3 0 and the connecting plate 3 2 are pulled upwards> so that the locking hole 31 will bite into the support column 26, and the friction generated at this time will stop the lowering of the frame 3 <. Because of this friction force, the faster the descending speed of the frame 3 / becomes larger, the more effective it is, and the burden on the steel wire 15 can be reduced. By the way, even if the speed of the frame 3 / rise is increased, the swinging roller 2 4 is separated from the cam plate 21 by the claw portion 19 and the tip portion 25 of the locking plate 17, which becomes According to the right rotation of the locking plate 1-7, -10- (Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210X297 cm) Central Standard of the Ministry of Economic Affairs A7 B7 printed by the local shellfish consumer cooperative. V. Description of the invention 6) The ratchet structure of the bite, so the two will not bite and stop the barrel 12. In this way, according to the present embodiment, the engagement state of the tip portion 25 of the lock plate 17 and the swing plate 23 is changed due to the rotation of the barrel 12 according to the lowering speed of the frame 3, 3 > The compulsory stop mechanism, such as the locking body 2 9 provided on the frame 3 < side, corresponds to the operation, so it has nothing to do with the state of the chain 7, and the detection of the descent speed of the frame 3, 3 / can stop it. Become simple. Furthermore, in the above-mentioned embodiment, the lower end of the steel wire 15 wound around the barrel 12 is connected to a forced stop mechanism such as the locking body 29, etc., and the locking plate of the barrel 12 is grounded to the car. Frame 3 /, but the lower end of the steel wire 15 can also be directly connected to the frame 3 /, so that the barrel 12 locked by the locking plate 17 stops rotating, and is directly connected to the stop frame 3 <. At the same time, although the forced stop mechanism of the frame in the above embodiment is constituted by the frictional force of the locking hole 31 and the support post 26, it can also be used as a pillar as shown in FIG. 1 > a rack 36 is provided on the side, and a shaft 28 on the 3 < side of the frame 3 is provided with a locking claw 37 which can be engaged with the chain 36 to be freely rotated, and is normally made by a torsion spring, etc. Cheng He rack 3 6 maintains the non-locking state * The lower end of the steel wire 15 is connected to the locking claw 37, and when the lowering speed of the frame 3, 3 'becomes faster, the steel wire 15 is pulled The locking claw 37 can be rotated to the rack 36 side to make it a structure for locking with the rack 36, and other structures can also be adopted. On the one hand, although the coil spring 16 is used for the rotation of the barrel 12, for example, the upper end of the steel wire 15 wound around the barrel 12 is suspended downwards. -I ^^ 1 -I- t ^^ 1 I- — R ^ i ^^ 1 L. Ακ. I ^^ 1 HI in an—-·-'^, > i (Please read the precautions on the back before filling out this page} This paper size applies to the Chinese National Standard (CNS ) A4 size (210X297 mm) -11-A7 __'__ B7 of the Central Standards Bureau of the Ministry of Economic Affairs and Consumer Cooperatives __'__ B7 V. Description of the invention 6) And connected to the average punching weight, using the load on the steel wire 15 As long as the structure capable of imparting a rotational force to the bucket 12 in one direction can be appropriately changed. Furthermore, in the above embodiment, although the speed detection mechanisms such as the barrel 12 and the swing plate 2 3 are provided on the support 1 / side, and the forced stop mechanisms such as the locking body 29 are provided on the frame 3 to the side, In the opposite case, a safety device can be constructed in the same way. Furthermore, although the safety device is provided only on one side of the pillar, it may be provided on both sides of the pillar, and the other side may be provided with a mechanism for preventing descent as described in the conventional art. Of course, it is not limited to the two-post type, and the present invention can also be applied to a four-post type vehicle standby lift. [Effects of the Invention] When the invention according to item 1 of the scope of patent application is applied, the rotating body is locked by using the aforementioned rotating body that rotates in accordance with the lowering of the frame, and the predetermined rotating speed of the rotating body is detected. The mechanism can simply detect the descending speed of the frame, and can easily perform a response based on this: Therefore, it is possible to stop the submerged frame with a safety device regardless of the state of the chain or the like that lifts and lowers the frame. At the same time, although the invention claimed in item 2 of the patent scope is a specific example of a rotating body, according to this invention, in addition to the first effect of applying for a patent scope, a rotating body capable of rotating at the lowering speed of the frame is simple and easy. Reasonably constituted. At the same time, although the invention of the third scope of the patent application is a specific example of the locking mechanism, according to the present invention, except for the first scope of the patent scope or (please read the precautions on the back before filling this page) Applicable to China National Standard (CNS) A4 specification (210X297 mm) -12- Printed by the Central Bureau of Standards, Ministry of Economic Affairs, Shellfish Consumer Cooperatives, printed A7 ___B7 V. Description of the invention 2), can be locked and turned The locking mechanism is simple and reasonable. Furthermore, although the invention of the fourth scope of the patent application is an example of a forced stop mechanism that indirectly links the locking of the rotating body to the descent stop of the frame, according to the present invention, except for the second scope of the patent scope of the application, In addition to the effect, the faster the descending speed of the frame that will become the dive, the greater the friction between the support column and the locking plate, which can effectively respond to the dive. At the same time, the burden on the rope body wound around the barrel can be reduced. [Brief description of the drawing] Figure 1 is an overall explanatory diagram of a two-pillar vehicle stand-by elevator. Fig. 2 is an explanatory diagram of a safety device. FIG. 3 is a diagram illustrating a vector view. Fig. 4 is an enlarged explanatory diagram of a barrel part. FIG. 5 is an explanatory diagram showing an operation state of the safety device. FIG. 6 is an explanatory diagram showing a modification example of the forced stop mechanism. [Explanation of Symbols] 1 '1 ^ ...... Pillar, 2 ... Hydraulic Cylinder, 3,3 -... Frame, 7 ... Key Bar , 8 ... safety device, 1 0 ... base plate, 1 2 ... barrel, 1 5 ... steel wire, 1 7 ... lock plate, 2 0 ... Occlusal groove, 2 1 ...... cam plate, 2 3 ...... rocking plate, 2 4 ...... rocking roller, 2 5 ...... tip, 2 6 ...... support column, 2 9 ...... locking body, 3 1 ...... locking hole, 3 3 ...... pull yellow. IJ— n ---- II — Λ, clothing ---_---- order ί \ (Please read the precautions on the back before filling this page) This paper is free to use China National Standards (CNS) Α4 Specifications （210X297 公 嫠） -13-