590978 ⑴ 玖、發明說明 【發明所屬之技術領域】 本發明係有關於一種電梯衝擊緩衝裝置，當電梯箱或 懸掛載重因任何理由下降時，用以停止電梯箱或懸掛載重 且同時儘可能地減少衝擊。更明確言之，本發明係有關於 一種衝擊緩衝裝置，具有以多級被聯結之柱塞。 【先前技術】 圖1顯示一習知電梯衝擊緩衝裝置。此一電梯衝擊 緩衝裝置1 00 A具有液壓衝擊緩衝裝置主體1 0 1，被提供在 位於一電梯機井之最下部部位處的地坑底部中。液壓衝 擊緩衝裝置主體1 Ο 1包含塡滿油之汽缸1 02、被滑動地配 接至汽缸2 1 02且在上部與下部方向中擴展/收縮之柱塞 1 〇 3、及被配置在柱塞1 〇 3與汽缸1 0 2中的壓縮彈簧1 0 4。 凸輪裝附臂105被固定至柱塞103的上部末端。一凸 輪桿1 〇6被直立地裝設在水平方向中延伸的凸輪裝附臂 105之尖梢中。凸輪桿106之下部末端被與一回位檢查開 關1〇7之作業臂107a結合。回位檢查開關1〇7係被設定由 凸輪桿1〇6之向下移動而自ON開關至OFF。回位檢查開關 107係經由一開關裝附臂108固定至汽缸102，且被定位使 得不會與將被收縮之柱塞1 〇 3等干擾。附帶地，參考號碼 1〇9代表一電纜，用以輸出回位檢查開關1〇7之開關資訊 〇 接下來，說明電梯衝擊緩衝裝置1 0 0 A之作業。例如 -6 - (2) ，當一電梯箱1 1 〇因爲任何理由下降而衝撃柱塞1 〇3之最 上部表面時，柱塞1 03逐漸地向著液壓壓力或彈簧壓力而 收縮，因而安全地停止電梯箱1 1 0。柱塞1 03之收縮下降 凸輪桿1 0 6以關閉回位檢查開關1 0 7。經由關閉回位檢查 開關107，動力供應被切斷。 在柱塞1 〇 3上之電梯箱1 1 0經由修復工作等而被上昇 至正常運動區域後，柱塞103經由彈簧壓力回位至擴展位 置。經由柱塞1 0 3之擴展，凸輪桿1 0 6被上昇以開啓回位 檢查開關1 〇 7。經由開啓回位檢查開關1 0 7，動力供應再 次被轉到ON，使准許電梯箱1 1 0之正常運轉。即爲，僅在 柱塞1 03回位至擴展位置且係在可抵拒電梯箱1 1 〇之不正 常下降的穩定停止狀態中，電梯箱11 〇才可正常地運轉。 圖2顯示另一習知電梯衝擊緩衝裝置。如圖2所示， 此一電梯衝擊緩衝裝置1 00B具有一液壓衝擊緩衝裝置主 體1 〇 1，被提供在位於一電梯機井之最下部部位處之地坑 底部中。液壓衝擊緩衝裝置主體1 0 1包含塡滿油之汽缸 1 〇 2、被滑動地配接至汽缸1 〇 2且在上部與下部方向中擴 展/收縮之柱塞1 0 3及被配置在柱塞1 0 3與汽缸1 〇 2中的壓 縮彈簧104。 一裝附臂1 1 1被固定至柱塞1 〇 3之上部末端，且諸如 爲一弦線之可撓長構件1 1 2的一末端被連接至以水平方向 延伸之裝附臂1 1 1尖梢。可撓長構件1 1 2的另一末端被連 接至回位檢查開關107之作業臂107a。在柱塞1〇3的擴展 位置中’可撓長構件1 1 2之張力維持回位檢查開關1 〇 7在 -7- (3) 一 ON (開啓）狀態中。回位檢查開關i 〇 7係被設定由柱塞 103的向下移動而自on開關至OFF。回位檢查開關1〇7係 經由一開關裝附臂1〇8固定至汽缸102，且被定位使得不 會與將被收縮之柱塞103等干擾。附帶地，參考號碼109 代表一電纜，用以輸出回位檢查開關1 〇 7之開關資訊。 按下來，將說明電梯衝擊緩衝裝置i 〇〇B之作業。例 如’當一電梯箱1 1 〇因爲任何理由下降而衝擊柱塞1 〇 3之 最上部表面時，柱塞1 0 3逐漸地向著液壓壓力或彈簧壓力 而收縮，因而安全地停止電梯箱1 1 〇。柱塞1 〇 3收縮釋放 了可撓長構件112之張力，以使關閉回位檢查開關107。 經由關閉回位檢查開關1 0 7，動力供應被切斷。 在柱塞1 03上之電梯箱1 1 〇經由修復工作等而被上昇 至正當運轉區域後，柱塞1 03經由彈簧壓力回位至擴展位 置。經由柱塞1 0 3之擴展，可擦長構件1 1 2之張力被回復 ，以使開啓回位檢查開關1 0 7。經由開啓回位檢查開關 1 〇 7，動力供應被轉到ON，因而准許電梯箱1 1 〇之正常運 轉。 以前述方式，可確保電梯之安全性，因爲電梯衝擊緩 衝裝置100A、100B均可安全地停止異常下降之電梯箱11〇 同時吸收了衝擊，且電梯箱1 1 0等被停止運轉，直到異常 下降電梯箱1 1 0等上昇至正常運轉區域，且回位檢查開關 1〇 7偵測到柱塞1〇3回位至擴展位置爲止。 在被使用於非常高速電梯之衝擊緩衝裝置中，使用 具有多級聯結柱塞之衝擊緩衝裝置主體，以使同時地具 -8 - (4) (4)590978 一較小衝擊緩衝裝置及較長柱塞行程。如果示於圖1之回 位檢查開關之安裝結構，係僅被裝設在使用多級聯結柱 塞系統之衝擊緩衝裝置主體的衝擊緩衝裝置中，構造係 類似於圖3A所示。 在圖3 A的此一衝擊緩衝裝置中，具有以多級聯結之 柱塞103 a至l〇3c的液壓衝擊緩衝裝置主體101，被配置在 位於一電梯機井之最下部部位處的地坑底部中。一凸輪 裝附臂105被提供在最上部柱塞103a中，且一凸輪桿106 被直立地裝設在凸輪裝附臂1 05之尖梢中。其他組件均類 似於前述且以類似參考號碼代表，因而省略其之說明。 但是，如示於圖3 B，因爲與汽缸長度比較，柱塞行 程係較長，產生凸輪桿106與汽缸102之安裝表面120干擾 的問題。 【發明內容】 示於圖4中之衝擊緩衝裝置100D係構想用以解決前述 之問題。如示於圖4，在此一衝撃緩衝裝置1 〇 〇 d中，每一 凸輪裝附臂1〇5與凸輪桿106均被裝設在每一柱塞l〇3a至 1 〇 3 c中，且回位檢查開關！ 〇 7不僅被裝設在汽缸1 〇 2中， 其亦被裝設在第二級的柱塞1 〇 3 b及第三級之柱塞1 〇 3 c中 。然後’柱塞103 a至103c的收縮移動被多數之回位檢查 開關1〇7所偵測。 最上部柱塞103 a未被旋轉，因爲其與被裝配於其上的 電梯箱（未示於圖）一起收縮。但是，低於最上部柱塞 -9- (5) (5)590978 之柱塞1 0 3 b、1 〇 3 c，均輕易地如圖4中之箭頭所示的旋轉 ，因爲其可自由地旋轉。其結果，產生沒有任何回位檢 查開關1 07會被確實地操作之可能性。 另一方面，可想像應用如示於圖2中之回位檢查開關 的安裝結構至用多級聯結吸收器主體之衝擊緩衝裝置。 但是，可撓長構件成爲非常長，且於柱塞收縮或擴展期間 ，非常可能造成可撓長構件之纏結。其結果，造成回位檢 查開關故障之可能性。此外，纏結會破壞可撓長構件，因 而不可能保證回位檢查開關之確實與正常的作業。 本發明係被設計以解決前述問題，且本發明之一目的係 提供一種電梯衝擊緩衝裝置，其使用以多級聯結之柱塞的 吸收器主體，且可確實且準確地操作，不會與汽缸之安裝表 面產生任何干擾。 一種電梯衝撃緩衝裝置，包含：一衝擊緩衝裝置主體， 其中多數之柱塞以多級被聯結至一汽缸之上部表面，衝擊 緩衝裝置主體被配置在電梯機井之最下部部位處；一滑輪 機構，具有滑輪多繞組機構，其中一可撓長構件的一末端 被固定至最上部柱塞，可撓長構件的另一末端被固定至一 固定部位，可撓長構件之中間部位具有至少一或更多之可 移動滑輪，且可撓長構件之鬆弛被可移動滑輪之下降所吸 收；及一回位檢查開關，依據可移動滑輪之上部與下部位 置而操作。 在此一電梯衝擊緩衝裝置中，當柱塞被收縮時，可撓 長構件被以相等於此一柱塞之行程的尺寸降低，且可撓長 -10- (6) 構件之下降尺寸被可移動滑輪之下降所吸收。可撓長構件 之下降尺寸可被充份短之下降距離所吸收。因爲可撓長構 件之下降數量係在其被懸掛於固定滑輪與可移動滑輪之間 時被吸收，不會產生纏結。因而，在使用多級聯結柱塞之 衝擊緩衝裝置主體的衝擊緩衝裝置中，即爲在汽缸之尺寸 係短於全體柱塞收縮行程之情況中，回位檢查開關可被確實 且正常地操作，不會與汽缸之安裝表面產生任何干擾。 較佳的，張力裝置載重被裝附至可移動滑輪，且回位檢 查開關被裝附至張力裝置載重或汽缸。 在此一電梯衝擊緩衝裝置中，因爲增加可撓長構件之 張力，可預防由於鬆弛產生之可撓長構件的故障或纏結。 因爲回位檢查開關未被安裝在一固定處中，不需要固定其之 安裝空間。因爲不需調整可撓長構件之長度，回位檢查開 關之操作位置可被輕易地調整。此外，因爲其不需要分離地 安裝一固定部位以供固定回位檢查開關，可以簡化結構。 一導軌可被裝設以導引張力裝置載重之上與下移動。 依據此一組態，可移動滑輪或可撓長構件之擺動可被 張力裝置載重所抑制。因而，可平順地移動可移動滑輪等。 彈性推進機構可被裝設以向下推進可移動滑輪。 在此一電梯衝擊緩衝裝置中，因爲當柱塞收縮時，可 移動滑輪均輕易地被彈性的壓進力所移動，可儘可能地預防 可撓長構件之鬆驰。因而，可預防由於鬆弛產生之可撓長 構件的故障與纏結。 一放大連桿被裝設使得其之一末端被連接至可移動滑輪 -11 - (7) (7)590978 ，且其之另一末端與回位檢查開關結合’每一滑輪之上與下 位移，係被以放大位移傳送至該連桿的另一末端。 在此一電梯衝擊緩衝裝置中，因爲可移動滑輪之下降 行程被放大連桿轉換成爲一大的位移，且回位檢查開關係由 此一大的位移所操作。因而，可更確實且準確地操作回位檢 查開關。 【實施方式】 接下來，將參照所附圖式於下說明本發明之較佳實施例 (第一實施例） 圖5至7顯示本發明之第一實施例。圖5係一電梯衝撃 緩衝裝置1 A之槪略前視圖、圖6係一滑輪機構3之滑輪多繞 組機構10之立體圖、及圖7係用以解釋可移動滑輪12a、12b 相關於在滑輪機構3中之可撓長構件9的下降尺寸之下降距 離的圖式。 如示於圖5，電梯衝擊緩衝裝置1 A包含一被提供在位於 電梯機井之最下部部位處的一地坑底部中之液壓衝擊緩衝 裝置主體2、用以經由液壓衝擊緩衝裝置主體2的柱塞6a至 6c之收縮而降低可移動滑動12a、12b的滑輪機構3、及一依 據滑輪機3之可移動滑輪1 2a、1 2b的上部與下部位置所操作 之回位檢查開關4。 液壓衝擊緩衝裝置主體2包含塡滿油之汽缸5、可滑動 -12- (8) (8)590978 地配合至汽缸5且在上部與下部方向中擴展/收縮之多級聯結 柱柱塞6a至6c、及被配置在多級聯結柱塞6a至6c與汽缸5中 的壓縮彈賛（未亦於圖中）。 滑輪機構3包含一可撓長構件9，該構件9的一末端被經 由裝附臂7連接至最上部柱塞6a之上部末端，且另一末端被 連接至安裝於大約相等於汽缸5之上部表面的高度處之第一 固定部位8，及滑輪多繞組機構10，該機構10被配置在汽缸5 之高度範圍中（在汽缸5之上部與下部表面之間），以使繞 組可撓長構件9。如示於圖6，滑輪多繞組機構1 0具有二可 移動滑輪1 2 a、1 2 b，相互地聯結在軸線1 1上且旋轉地支 承可撓長構件9，及一被第一固定部位8所支承之固定滑 輪1 3。自最上部柱塞6 a側下降之可撓長構件9，係順序地 繞著一可移動滑輪1 2 a、上部固定滑輪1 3、及另一可移動 滑輪1 2 b而繞組。以此順序繞組之可撓長構件的另一末端 側，係被連接至第一定部位8。第一固定部位8係經由一 裝附構件1 8固定至汽缸5而被安裝，或經由一裝附構件 （ 未示於圖）固定至電梯機井（未示於圖）而安裝。相同 之方式可被應用至下述的第二固定固位14。 如示於圖5，回位檢查開關4包含一開關主體4a及自開關 主體4a突出之作業臂4b。開關主體4a被固定至配置在汽缸5 之局度範圍中的第二固定部位1 4。作業臂4 b係被配置在可被 可移動滑輪12a、12b所干擾之位置中。回位檢查開關4係被 設定以經由柱塞6a至6c的下降產生之可移動滑輪12a、12b之 向下移動，而自ON開關至OFF。附帶地，參考號碼15代表一 -13- (9) 電纜，用以輸出回位檢查開關4的開關資訊。 按下來，將說明電梯衝撃緩衝裝置1A之作業。例如， 當一電梯箱1 6因爲任何理由下降而衝撞最上部柱塞6a之上部 表面時，每一柱塞6a至6c逐漸地向著液壓力或彈簧壓力而收 縮，因而安全地停止電梯箱16。當每一柱塞6a至6c之收縮以 相等於柱塞行程之尺寸降低可撓長構件9時，可移動滑輪 12a、12b下降以吸收可撓長構件9之下降尺寸。在可移動滑 輪12a、12b下降後，回位檢查開關4被開關至OFF。經由關 閉回位檢查開關4，動力供應被切斷。 當在柱塞6a至6c上的電梯箱1 6經由修復工作等而上昇至 正常運轉區域時，柱塞6a至6c均經由彈簧壓力而回位至擴展 位置。當柱塞6a至6c均被擴展時，可移動滑動滑輪12a、12b 均被上昇，而以相反於前述之作業開啓回位檢查開關4。經 由開啓回位檢查開關4，動力供應再次被開啓，使准許電梯 箱16的正常運轉。 現在，將說明在前述作業程序中之可撓長構件9的下降 尺寸與可移動滑輪1 2a、1 2b的下降距離之間的關係。如果可 撓長構件9之下降尺寸係L1，且可撓長構件9繞著每一可移 動滑輪12a、12b之繞組次數爲N，則可移動滑輪12a、12b之 下降距離L2成爲L2 = L1/ (2x N)。依據第一實施例，因爲 可撓長構件9繞著二可移動滑輪1 2a、1 2b繞組，使N爲2，可 移動滑輪12a、12b之下降距離L2成爲1/4的可撓長構件9之下 降尺寸L 1，即爲柱塞行程。因而，因爲可撓長構件9之下降 尺寸L1可被可移動滑輪12a、12b之短下降距離所吸收，絕不 -14- (10) (10)590978 會發生可移動滑輪12a、12b與汽缸5之安裝表面17的干擾。 此外，因爲下降距離被吸收’當可撓長構件9被懸吊在固定 滑輪13與可移動滑輪12a、12b之間時，該構件9不會纏結。 依此，在使用多級聯結柱塞6a至6c的衝擊緩衝裝置主體2的 \ 衝擊緩衝裝置中，即爲在汽缸5係短於柱塞之全體收縮行程 _ 的情況中，回位檢查開關4可穩定且正常地操作，不會與汽 缸5之安裝表面17產生任何干擾。因而，可獲致高度可靠之 衝撃緩衝裝置1A。 φ 明確言之，可撓長構件9包含繩索、皮帶、鏈條等。如 果可撓長構件9係由一繩索構成，則其可不昂貴的準備。如 果其由皮帶構成，回位檢查開關4可更準確地操作，因爲其 與繩索比較具有較小之擴展。如果其由鏈條構成，回位檢查 開關4可更加準確，因爲其與繩索及皮帶比較係具有更小之 擴展，且此外，折疊直徑（導輥直徑）可被設定爲較小。 在下述之第二實施例及其後之實施例中的可撓長構件9之特 定範圍均爲類似的。 φ 在第一實施例中，可移動滑輪之數量爲二，即爲12a與 12b ’且可撓長構件9繞著可移動滑輪12a與12b之繞組次數亦 ’ 爲二。但無需說的，可移動滑輪之數量可以爲一，且可撓 · 長構件9繞著可移動滑輪之繞組次數亦可爲一（於此情況， 基本±不需要固定滑輪），或可滑動滑輪之數量可以爲相 . 等或多於三’且可撓長構件9繞著可移動滑輪之繞組次數亦 可爲相等或多於三。可撓長構件9繞著可移動滑輪之繞組次 數的値’可妥適地依據全體柱塞收縮行程及汽缸5之高度尺 -15- (11) (11)590978 寸決定。相同方式亦應用於下述第二實施例中。 (第二實施例） 圖8係依據本發明之第二實施例的電梯衝擊緩衝裝置！ B 的槪略前視圖。 · 如示於圖8，第二實施例之電梯衝擊緩衝裝置丨b與第一 實施例之不同點在於張力裝置載重20被裝附至可移動滑輪 1 2a、1 2b。其他組件均類似於第一實施例之組件並以類似參 考號碼代表，因而省略其之說明。 0 第二實施例之電梯衝擊緩衝裝置1B的作業係類似於第 一實施例。經由此一作業，在使用多級聯結柱塞6a至6c的衝 擊緩衝裝置主體2的衝擊緩衝裝置中，回位檢查開關4可 被確實且正常地操作，不會與汽缸5之安裝表面1 7有任何 之干擾。因而，可獲致高度可靠之衝擊緩衝裝置1B。 此外，依據第三實施例，因爲可撓長構件9之張力可 被張力裝置載重20所增加，可預防由於鬆驰導致之可撓 長構件9的故障與纏結。 · (第三實施例） ' 圖9係依據本發明之第三實施例的電梯衝擊緩衝裝置 . 1 c之槪略前視圖。 在第二實施例中，回位檢查開關4被裝附至第二固定 · 部位1 4 ’但如示於圖9，在第三實施例之電梯衝撃緩衝裝 置1 c中，回位檢查開關4被裝附至張力裝置載重2 0下方， 且回位檢查開關4之作業臂4b被配置在用以與固定至汽缸 •16- (12) (12)590978 5之凸輪2 1干擾的位置中。其他組件均類似於第二實施例 並以類似參考號碼代表，因而省略其之說明。 第三實施例之電梯衝擊緩衝裝置1 C的作業係類似於 第二實施例。經由此一作業，在使用多級聯結柱塞6 a至6 c 的衝擊緩衝裝置主體2的衝擊緩衝裝置中，回位檢查開關 4可被確實且正常地操作，不會與汽缸5之安裝表面I7有590978 玖 发明, description of the invention [Technical field to which the invention belongs] The present invention relates to an elevator shock buffer device, which is used to stop the elevator box or suspended load and reduce it as much as possible when the elevator box or suspended load drops for any reason. Shock. More specifically, the present invention relates to an impact buffer device having a plunger coupled in multiple stages. [Prior Art] FIG. 1 shows a conventional elevator shock absorbing device. This elevator shock absorbing device 100A has a hydraulic shock absorbing device body 101, which is provided in the bottom of a pit at the lowermost portion of an elevator shaft. The hydraulic shock absorbing device main body 1 0 1 includes a cylinder 100 filled with oil, a plunger 1 03 which is slidably connected to the cylinder 2 102 and expands / contracts in the upper and lower directions, and is disposed on the plunger. 1 03 and the compression spring 104 in the cylinder 102. The cam attachment arm 105 is fixed to the upper end of the plunger 103. A cam lever 106 is installed upright in the tip of the cam attachment arm 105 extending in the horizontal direction. The lower end of the cam lever 106 is combined with a working arm 107a of a return check switch 107. The reset check switch 10 is set to move from the ON position to the OFF position by moving the cam lever 10 down. The return check switch 107 is fixed to the cylinder 102 via a switch attachment arm 108 and is positioned so as not to interfere with the plunger 103 or the like to be retracted. Incidentally, the reference number 109 represents a cable for outputting the switch information of the return check switch 107. Next, the operation of the elevator shock buffer device 100A will be described. For example, -6-(2), when an elevator box 1 1 0 is lowered and flushes the uppermost surface of the plunger 1 0 3 for any reason, the plunger 10 3 gradually shrinks toward hydraulic pressure or spring pressure, thus safely Stop the elevator box 1 1 0. The contraction of the plunger 103 is lowered and the cam lever 106 is closed to close the return check switch 107. By turning off the return check switch 107, the power supply is cut off. After the elevator box 110 on the plunger 103 is lifted to the normal movement area through repair work or the like, the plunger 103 is returned to the extended position by the spring pressure. By extension of the plunger 103, the cam lever 106 is raised to turn on the return check switch 107. By turning on the return check switch 1 07, the power supply is turned ON again to allow the normal operation of the elevator box 1 10. That is, only when the plunger 103 returns to the extended position and is in a stable stop state that can resist the abnormal drop of the elevator box 110, the elevator box 110 can operate normally. Figure 2 shows another conventional elevator shock absorbing device. As shown in FIG. 2, this elevator impact buffer device 100B has a hydraulic impact buffer device body 101, which is provided in the bottom of a pit located at the lowest part of an elevator shaft. The hydraulic shock absorbing device main body 101 includes a cylinder 1 filled with oil, and a plunger 103 which is slidably connected to the cylinder 1 and expands / contracts in the upper and lower directions, and is disposed on the plunger. 103 and the compression spring 104 in the cylinder 102. An attachment arm 1 1 1 is fixed to the upper end of the plunger 1 03, and one end of a flexible long member 1 1 2 such as a string is connected to the attachment arm 1 1 1 extending in a horizontal direction. Spiked. The other end of the flexible long member 1 1 2 is connected to the operation arm 107 a of the return check switch 107. In the extended position of the plunger 103, the tension maintaining return check of the flexible member 1 12 is in the -7- (3) ON state. The return check switch i 07 is set to move from the on switch to the off position by moving the plunger 103 downward. The return check switch 107 is fixed to the cylinder 102 via a switch attachment arm 108 and is positioned so as not to interfere with the plunger 103 or the like to be contracted. Incidentally, the reference number 109 represents a cable for outputting switch information of the return check switch 107. Pressing down will explain the operation of the elevator shock absorbing device i 00B. For example, 'When an elevator box 1 1 0 drops for any reason and hits the uppermost surface of the plunger 1 0 3, the plunger 10 3 gradually shrinks toward hydraulic pressure or spring pressure, so the elevator box 1 1 is safely stopped. 〇. The plunger 103 is contracted to release the tension of the flexible member 112 so that the return check switch 107 is closed. By closing the return check switch 107, the power supply is cut off. After the elevator box 1 10 on the plunger 103 is raised to the normal operation area through repair work, etc., the plunger 103 is returned to the extended position by the spring pressure. After the extension of the plunger 103, the tension of the erasable member 1 12 is restored, so that the return check switch 10 7 is turned on. By turning on the return check switch 107, the power supply is turned ON, thereby allowing the normal operation of the elevator box 110. In the foregoing manner, the safety of the elevator can be ensured, because the elevator shock buffer devices 100A and 100B can safely stop the abnormally lowered elevator box 11 while absorbing the impact, and the elevator box 1 10 and the like are stopped until the abnormal drop The elevator box 1 10 and so on rise to the normal operating area, and the return check switch 10 detects that the plunger 10 returns to the extended position. In the shock buffering device used in very high-speed elevators, the shock buffering device main body with multi-stage connection plunger is used to make the floor -8-(4) (4) 590978 a smaller shock buffering device and longer Plunger stroke. If the installation structure of the return check switch shown in Fig. 1 is installed only in an impact buffer device using an impact buffer device main body of a multi-stage plug system, the structure is similar to that shown in Fig. 3A. In this shock buffering device of FIG. 3A, a hydraulic shock buffering device main body 101 having plungers 103a to 103c connected in multiple stages is arranged in a pit located at the lowest part of an elevator shaft. In the bottom. A cam attachment arm 105 is provided in the uppermost plunger 103a, and a cam lever 106 is installed upright in the tip of the cam attachment arm 105. The other components are similar to those described above and are represented by similar reference numerals, and their descriptions are omitted. However, as shown in FIG. 3B, since the plunger stroke is longer compared with the cylinder length, there is a problem that the cam lever 106 interferes with the mounting surface 120 of the cylinder 102. SUMMARY OF THE INVENTION The impact buffer device 100D shown in FIG. 4 is conceived to solve the aforementioned problems. As shown in FIG. 4, in this flushing buffer device 100d, each cam attachment arm 105 and the cam lever 106 are installed in each plunger 103a to 103c, And check the switch! 〇7 is installed not only in the cylinder 102, but also in the plunger 103b of the second stage and the plunger 103c of the third stage. Then, the contraction movement of the 'plungers 103a to 103c is detected by the majority of the return check switches 107. The uppermost plunger 103a is not rotated because it retracts with the elevator box (not shown) mounted on it. However, the plungers 1 0 3 b and 1 0 3 c below the uppermost plunger -9- (5) (5) 590978 can be easily rotated as shown by the arrows in FIG. 4 because they can be freely rotated. Spin. As a result, there is a possibility that the return check switch 107 may be reliably operated. On the other hand, it is conceivable to apply the mounting structure of the return check switch as shown in Fig. 2 to an impact buffer device using a multi-staged absorber body. However, the flexible member becomes very long, and during the contraction or expansion of the plunger, it is very likely to cause entanglement of the flexible member. As a result, there is a possibility that the return check switch malfunctions. In addition, tangling can damage the flexible long member, making it impossible to guarantee the correct and normal operation of the return check switch. The present invention is designed to solve the aforementioned problems, and an object of the present invention is to provide an elevator shock buffer device, which uses an absorber body of a multi-stage connected plunger, which can be reliably and accurately operated without interfering with a cylinder Any interference from its mounting surface. An elevator punching buffer device includes: an impact buffer device body, wherein most of the plungers are connected to the upper surface of a cylinder in multiple stages, and the impact buffer device body is arranged at the lowest part of the elevator shaft; a pulley mechanism With a pulley multi-winding mechanism, one end of a flexible member is fixed to the uppermost plunger, the other end of the flexible member is fixed to a fixed position, and the middle portion of the flexible member has at least one or More movable pulleys, and the slack of the flexible long member is absorbed by the lowering of the movable pulley; and a return check switch, which operates according to the upper and lower positions of the movable pulley. In this elevator impact buffer device, when the plunger is retracted, the flexible member is reduced by a size equal to the stroke of the plunger, and the flexible member is reduced in size by -10- (6) Absorbed by the drop of the moving pulley. The drop size of the flexible long member can be absorbed by a sufficiently short drop distance. Because the amount of drop of the flexible long member is absorbed when it is suspended between the fixed pulley and the movable pulley, there is no tangling. Therefore, in the shock buffering device of the shock buffering device main body using a multi-stage plunger, the return check switch can be reliably and normally operated in a case where the size of the cylinder is shorter than the entire plunger retracting stroke. Does not interfere with the mounting surface of the cylinder. Preferably, the tension device load is attached to the movable pulley, and the return check switch is attached to the tension device load or the cylinder. In this elevator shock absorbing device, since the tension of the flexible member is increased, failure or tangling of the flexible member due to relaxation can be prevented. Since the return check switch is not installed in a fixed place, there is no need to fix its installation space. Because there is no need to adjust the length of the flexible long member, the operating position of the return check switch can be easily adjusted. In addition, the structure can be simplified because it does not need to separately install a fixing portion for fixing the return check switch. A guide rail can be installed to guide the tension device to move up and down. According to this configuration, the swing of the movable pulley or the flexible long member can be suppressed by the load of the tension device. Therefore, the movable pulley and the like can be smoothly moved. An elastic propulsion mechanism may be provided to advance the movable pulley downward. In this elevator impact buffering device, since the movable pulleys are easily moved by the elastic pressing force when the plunger is retracted, the slack of the flexible long member can be prevented as much as possible. Therefore, failure and entanglement of the flexible member due to slack can be prevented. An enlarged link is installed so that one end thereof is connected to the movable pulley -11-(7) (7) 590978, and the other end thereof is combined with a return check switch 'each pulley is displaced above and below Is transmitted to the other end of the link with an enlarged displacement. In this elevator shock absorbing device, because the descending stroke of the movable pulley is converted into a large displacement by the magnifying link, and the return check open operation is operated by this large displacement. Therefore, the return check switch can be operated more surely and accurately. [Embodiment] Next, a preferred embodiment of the present invention will be described below with reference to the attached drawings. (First Embodiment) FIGS. 5 to 7 show a first embodiment of the present invention. FIG. 5 is a schematic front view of an elevator punching buffer device 1 A, FIG. 6 is a perspective view of a pulley multi-winding mechanism 10 of a pulley mechanism 3, and FIG. 7 is a diagram for explaining the movable pulleys 12a, 12b in relation to the pulley mechanism Drawing of the falling distance of the falling size of the flexible long member 9 in 3. As shown in FIG. 5, the elevator shock absorbing device 1 A includes a hydraulic shock absorbing device body 2 provided in a bottom of a pit at the lowermost portion of the elevator shaft, and The retraction of the plungers 6a to 6c lowers the pulley mechanism 3 of the movable slides 12a, 12b, and a return check switch 4 operated by the upper and lower positions of the movable pulleys 12a, 12b of the pulley machine 3. The hydraulic shock cushioning device main body 2 includes a cylinder 5 filled with oil, a multi-stage coupling column plunger 6a to be slidably fitted to the cylinder 5 and expanded / contracted in the upper and lower directions. 6c, and compression bombs (not shown in the figure) arranged in the multi-stage connecting plungers 6a to 6c and the cylinder 5. The pulley mechanism 3 includes a flexible member 9 whose one end is connected to the upper end of the uppermost plunger 6a via the attachment arm 7 and the other end is connected to the upper portion which is approximately equal to the upper portion of the cylinder 5. The first fixed part 8 at the height of the surface, and the pulley multi-winding mechanism 10, which is arranged in the height range of the cylinder 5 (between the upper and lower surfaces of the cylinder 5) to make the windings flexible 9. As shown in FIG. 6, the pulley multi-winding mechanism 10 has two movable pulleys 1 2 a, 1 2 b, which are coupled to each other on the axis 11 and rotatably support the flexible member 9, and a first fixed portion 8 fixed pulleys supported by 8. The flexible long member 9 descending from the uppermost plunger 6a side is sequentially wound around a movable pulley 12a, an upper fixed pulley 13, and another movable pulley 12b. The other end side of the flexible member wound in this order is connected to the first fixed portion 8. The first fixing portion 8 is installed by being fixed to the cylinder 5 via an attachment member 18, or is installed by being attached to an elevator shaft (not shown) via an attachment member (not shown). The same method can be applied to the second fixed retention 14 described below. As shown in Fig. 5, the return check switch 4 includes a switch body 4a and an operation arm 4b protruding from the switch body 4a. The switch body 4 a is fixed to a second fixing portion 14 arranged in the local range of the cylinder 5. The working arm 4b is arranged in a position where it can be disturbed by the movable pulleys 12a, 12b. The return check switch 4 is set to move downward by the movable pulleys 12a, 12b generated by the lowering of the plungers 6a to 6c, and from the ON switch to the OFF position. Incidentally, the reference number 15 represents a -13- (9) cable for outputting the switch information of the return check switch 4. Pressing down will explain the operation of the elevator scouring buffer device 1A. For example, when an elevator car 16 descends for any reason and hits the upper surface of the uppermost plunger 6a, each of the plungers 6a to 6c gradually shrinks toward hydraulic pressure or spring pressure, thereby stopping the elevator car 16 safely. When the contraction of each of the plungers 6a to 6c reduces the flexible member 9 by a size equivalent to the stroke of the plunger, the movable pulleys 12a, 12b are lowered to absorb the reduced size of the flexible member 9. After the movable pulleys 12a, 12b are lowered, the return check switch 4 is turned OFF. By closing the return check switch 4, the power supply is cut off. When the elevator boxes 16 on the plungers 6a to 6c are raised to the normal operation area through repair work or the like, the plungers 6a to 6c are returned to the extended position by the spring pressure. When the plungers 6a to 6c are all expanded, the movable sliding pulleys 12a, 12b are all raised, and the return check switch 4 is turned on in the opposite operation to that described above. By turning on the return check switch 4, the power supply is turned on again, and the normal operation of the elevator box 16 is permitted. Now, the relationship between the descending size of the flexible elongated member 9 and the descending distance of the movable pulleys 12a, 12b in the foregoing work procedure will be explained. If the descending dimension of the flexible member 9 is L1, and the number of windings of the flexible member 9 around each movable pulley 12a, 12b is N, then the descending distance L2 of the movable pulley 12a, 12b becomes L2 = L1 / (2x N). According to the first embodiment, because the flexible long member 9 is wound around two movable pulleys 12a, 12b, so that N is 2, the falling distance L2 of the movable pulleys 12a, 12b becomes 1/4 of the flexible long member 9. The descending dimension L 1 is the plunger stroke. Therefore, because the descent dimension L1 of the flexible long member 9 can be absorbed by the short descent distance of the movable pulleys 12a, 12b, never -14- (10) (10) 590978 will occur the movable pulleys 12a, 12b and the cylinder 5 Interference with its mounting surface 17. Further, because the lowering distance is absorbed ', when the flexible long member 9 is suspended between the fixed pulley 13 and the movable pulleys 12a, 12b, the member 9 is not tangled. Accordingly, in the case of the shock buffer device 2 of the shock buffer device main body 2 using the multi-stage plungers 6a to 6c, the return check switch 4 is used in the case where the cylinder 5 is shorter than the entire contraction stroke of the plunger. It can operate stably and normally without any interference with the mounting surface 17 of the cylinder 5. Thus, a highly reliable shock buffer device 1A can be obtained. φ Specifically, the flexible member 9 includes a rope, a belt, a chain, and the like. If the flexible member 9 is composed of a rope, it can be inexpensively prepared. If it is constituted by a belt, the return check switch 4 can be operated more accurately because it has a smaller extension than a rope. If it is constituted by a chain, the return check switch 4 can be more accurate because it has a smaller extension compared to a rope and a belt, and furthermore, the folding diameter (guide roller diameter) can be set to be smaller. The specific ranges of the flexible member 9 in the second embodiment and the following embodiments are similar. φ In the first embodiment, the number of movable pulleys is two, that is, 12a and 12b ', and the number of windings of the flexible member 9 around the movable pulleys 12a and 12b is also two. But needless to say, the number of movable pulleys can be one, and the number of times the flexible and long member 9 is wound around the movable pulley can also be one (in this case, basically ± no fixed pulley is required), or the movable pulley The number can be equal to or more than three 'and the number of times the flexible member 9 is wound around the movable pulley can be equal or more than three. The number of windings of the flexible long member 9 around the movable pulley 値 ′ can be appropriately determined according to the contraction stroke of the entire plunger and the height rule of the cylinder 5 -15- (11) (11) 590978 inches. The same applies to the second embodiment described below. (Second Embodiment) Fig. 8 is an elevator shock absorbing device according to a second embodiment of the present invention! Sketchy front view of B. · As shown in Fig. 8, the elevator shock absorbing device 丨 b of the second embodiment is different from the first embodiment in that a tension device load 20 is attached to the movable pulleys 12a, 12b. The other components are similar to those of the first embodiment and are represented by similar reference numerals, and a description thereof will be omitted. 0 The operation of the elevator shock absorbing device 1B of the second embodiment is similar to that of the first embodiment. With this operation, in the impact buffering device of the impact buffering device body 2 using the multi-stage connecting plungers 6a to 6c, the return check switch 4 can be reliably and normally operated without contacting the mounting surface 17 of the cylinder 5. There is any interference. Therefore, a highly reliable impact buffer device 1B can be obtained. In addition, according to the third embodiment, since the tension of the flexible member 9 can be increased by the tension device load 20, it is possible to prevent the failure and tangling of the flexible member 9 due to slack. · (Third Embodiment) Fig. 9 is a schematic front view of an elevator shock absorbing device according to a third embodiment of the present invention. In the second embodiment, the return check switch 4 is attached to the second fixed position 1 4 ′. However, as shown in FIG. 9, in the elevator flushing buffer device 1 c of the third embodiment, the return check switch 4 The operating arm 4b attached to the tension device load 20 and the return check switch 4 is arranged in a position to interfere with the cam 21 fixed to the cylinder 16- (12) (12) 590978 5. The other components are similar to the second embodiment and are represented by similar reference numerals, and a description thereof will be omitted. The operation of the elevator shock absorbing device 1C of the third embodiment is similar to that of the second embodiment. With this operation, in the impact buffering device of the impact buffering device main body 2 using the multi-stage connecting plungers 6 a to 6 c, the return check switch 4 can be reliably and normally operated without contacting the mounting surface of the cylinder 5 I7 has
任何之干擾。因而，可獲致高度可靠之衝擊緩衝裝置1 C 〇 此外，依據第三實施例，因爲回位檢查開關4未被安裝 在一固定處，不必要獲取其所需要之安裝空間。經由變化凸 輪2 1的位置，無須調整可撓長構件9之長度，便可調整回位 檢查開關4之作業位置。因而，易於進行調整。 依據第三實施例，因爲回位檢查開關4被配置在張力裝 置載重20之直接正下方位置中，可儘可能預防回位檢查開關 4曝露至殘屑與灰塵。因而可預防回位檢查開關4之故障。 (第四實施例） 圖10係依據本發明之第四實施例的電梯衝擊緩衝裝置 1 D之槪略前視圖。 在第二實施例中，回位檢查開關4被裝附至第二固定 部位1 4，但如示於圖1 0，在第四實施例之電梯衝撃緩衝裝 置i D中，回位檢查開關4被裝附至汽缸5。其他組件均類 似於第二實施例並以類似參考號碼代表，因而省略其之說 明。 -17- (13) (13)590978 第四實施例之電梯衝撃緩衝裝置1 D的作業係類似於 第二實施例。經由此一作業，在使用多級聯結柱塞6a至6c 的衝撃緩衝裝置主體2的衝擊緩衝裝置中，回位檢查開關 4可被確實且正常地操作，不會與汽缸5之安裝表面17有Any interference. Therefore, a highly reliable impact buffer device 1 C can be obtained. In addition, according to the third embodiment, since the return check switch 4 is not installed at a fixed place, it is not necessary to obtain the required installation space. By changing the position of the convex wheel 21, the operation position of the return check switch 4 can be adjusted without adjusting the length of the flexible long member 9. Therefore, adjustment is easy. According to the third embodiment, since the return check switch 4 is disposed in a position directly below the tension device load 20, it is possible to prevent the return check switch 4 from being exposed to debris and dust as much as possible. Therefore, failure of the return check switch 4 can be prevented. (Fourth embodiment) Fig. 10 is a schematic front view of an elevator shock absorbing device 1 D according to a fourth embodiment of the present invention. In the second embodiment, the return check switch 4 is attached to the second fixing portion 14, but as shown in FIG. 10, the return check switch 4 is in the elevator buffering device i D of the fourth embodiment. Being attached to the cylinder 5. The other components are similar to the second embodiment and are represented by similar reference numerals, and a description thereof will be omitted. -17- (13) (13) 590978 The operation of the elevator flushing buffer device 1 D of the fourth embodiment is similar to that of the second embodiment. With this operation, in the impact buffering device of the impact buffering device body 2 using the multi-stage connecting plungers 6a to 6c, the return check switch 4 can be reliably and normally operated, and does not have the same as the mounting surface 17 of the cylinder 5
任何之干擾。因而，可獲致高度可靠之衝擊緩衝裝置1 D 〇 此外，依據第四實施例，因爲其不必要分離地安裝供 固定回位檢查開關4用的固定部位（類似於圖8的第二固 定部位M)，可簡化結構。 (第五實施例） 圖1 1係依據本發明之第五實施例的電梯衝撃緩衝裝置 1 E之槪略前視圖。 如示於圖1 1，第五實施例之電梯衝擊緩衝裝置1 E與第 四實施例之不同點在於被裝附以覆蓋每一可移動滑輪1 2a 、1 2b的外部周邊之外蓋22。其他組件均類似於第四實施 例之組件並以類似參考號碼代表，因而省略其之說明。 第五實施例之電梯衝擊緩衝裝置1 E的作業係類似於 第四實施例。經由此一作業，在使用多級聯結柱塞6a至6c 的衝撃緩衝裝置主體2的衝擊緩衝裝置中，回位檢查開關 4可被確實且正常地操作，不會與汽缸5之安裝表面17有Any interference. Therefore, a highly reliable impact buffer device 1 D can be obtained. In addition, according to the fourth embodiment, it is not necessary to separately mount a fixing portion for fixing the return check switch 4 (similar to the second fixing portion M of FIG. 8). ) To simplify the structure. (Fifth Embodiment) Fig. 11 is a schematic front view of an elevator punching buffer device 1E according to a fifth embodiment of the present invention. As shown in Fig. 11, the fifth embodiment differs from the fourth embodiment in the elevator shock absorbing device 1E in that it is attached to cover the outer peripheral cover 22 of each movable pulley 12a, 12b. The other components are similar to those of the fourth embodiment and are designated by similar reference numerals, and a description thereof will be omitted. The operation of the elevator shock absorbing device 1E of the fifth embodiment is similar to that of the fourth embodiment. With this operation, in the impact buffering device of the impact buffering device body 2 using the multi-stage connecting plungers 6a to 6c, the return check switch 4 can be reliably and normally operated, and does not have the same as the mounting surface 17 of the cylinder 5
任何之干擾。因而，可獲致高度可靠之衝撃緩衝裝置1 E 〇 此外，依據第五實施例，因爲經由外蓋22儘可能地預防 -18- (14) 灰塵等粘附至可移動滑輪1 2a、1 2b之可能性，其可儘可能地 預防由於灰塵等造成之可撓長構件9或可移動滑輪1 2a、1 2B 的作業失敗。 (第六實施例） 圖1 2係依據本發明之之第六實施例的電梯衝擊緩衝裝 置1F之槪略前視圖。 如示於圖12，第六實施例之電梯衝擊緩衝裝置1F與第 四實施例之不同點在於導軌23被裝設以導引張力裝置載重20 之上下移動。其他組件均類似於第四實施例之組件並以類似 參考號碼代表，因而省略其之說明。 第六實施例之電梯衝擊緩衝裝置1F的作業係類似於第 四實施例。經由此一作業，在使用多級聯結柱塞6a至6c的衝 擊緩衝裝置主體2的衝擊緩衝裝置中，回位檢查開關4可被 確實且正常地操作，不會與汽缸5之安裝表面17有任何之干 擾。因而，可獲致高度可靠之衝擊緩衝裝置1F。 此外，依據第六實施例，經由張力裝置載重20抑制可移 動滑輪12a、12b或可撓長構件9之擺動，而使可移動滑12a、 12b等均被平順地移動。 (第七實施例） 圖1 3係依據本發明之第七實施例的電梯衝擊緩衝裝置 1G之槪略前視圖。 如示於圖13，第七實施例之電梯衝撃緩衝裝置1G與第 -19- (15) (15)590978 五實施例之不同點在於一壓縮彈簧24被裝設爲用以向下推進 可移動滑輪12a、12b的彈性推進機構。其他組件均類似於第 五實施例並以類似參考號碼代表，因而省略其之說明。 第七實施例之電梯衝擊緩衝裝置1G的作業係類似於第 _ 五實施例。經由此一作業，在使用多級聯結柱塞6a至6c的衝 . 擊緩衝裝置主體2的衝撃緩衝裝置中，回位檢查開關4可被 確實且正常地操作，不會與汽缸5之安裝表面17有任何之干 擾。因而，可獲致高度可靠之衝擊緩衝裝置1G。 · 此外，依據第七實施例，因爲可移動滑輪12a、12b均可 在當柱塞6a至6c擴展/收縮時之壓縮彈簧24的推進力輕易地 移動，可儘可能地預防可撓長構件9之鬆弛。因而，可預防 由於鬆驰造成可撓長構件9的故障與纏結。 依據第七實施例，彈性推進構件係由壓縮彈簧24構成 。但是，可應用任何只要可施加初始向下推進力至可移動滑 輪12a、12b之機構。 (第八實施例） 圖14係依據本發明第八實施例的電梯衝擊緩衝裝置1H 之槪略前視圖。 < 如示於圖14，第八實施例之電梯衝擊緩衝裝置1H與第 五實施例之不同點在於裝附臂7被設定爲較長，一放大連桿 · 25的一末端側與被與可移動滑輪12a、12b側結合（明確言之 ，在張力裝置載重20之下方），而其之另一末端被聯結至回 位檢查開關4的作業臂4b。在放大連桿25中，一支點26被設 -20- (16) 定使得每一可移動滑輪12a、12b之下降位移被以放大位移而 傳送至其之另一末端。 其他組件均類似於第五實施例並以類似參考號碼代表， 因而省略其之說明。附帶地，裝附臂7可被設定至相等於其 他實施例之長度。 第八實施例之電梯衝擊緩衝裝置1H的作業係類似於第 五實施例。經由此一作業，在使用多級聯結柱塞6a至6c的衝 擊緩衝裝置主體2的衝擊緩衝裝置中，回位檢查開關4可被 確實且正常地操作，不會與汽缸5之安裝表面17有任何之干 擾。因而，可獲致高度可靠之衝擊緩衝裝置1H。 此外，依據第八實施例，每一可移動滑輪1 2 a、1 2 b之下 降行程被放大連桿25轉換爲一大位移，且回位檢查開關4可 被此一大位移所操作。因而，回位檢查開關4可被確實且準 確地操作。即爲，因爲每一移動滑輪12a、12b之下降行程被 設定爲短的（被設定至少短於汽缸5之高度尺寸），如果回 位檢查開關4係被該短的下降行程直接地操作，會發生故障 。經由使用第八實施例，可確實消除該一可能性。 依據實施例，多級聯結柱塞6a至6c均以三級構成。無須 說的，本發明可被應用至二級、四級或更多級。 工業適用性 如前所述，依據本發明，可撓長構件之下降尺寸可被 可移滑輪之下降而吸收，且可撓長構件之下降尺寸可被可 移動滑輪一充份地短之下降距離所吸收。此外，因爲下降部 -21 - (17) (17)590978 位之可撓長構件係在被懸吊於固定滑輪與可移動滑輪之間 被吸收，具有不會發生纏結之優點。依據本發明，可確實且 正常地操作回位檢查開關，不會與汽缸之安裝表面有任何之 干擾。 【圖式簡單說明】 圖1係一槪略前視圖，顯示一習知範例之電梯衝擊緩 衝裝置。 _ 圖2係一槪略前視圖，顯示另一習知範例之電梯衝擊 緩衝裝置。 圖3 A與SB顯示使用多級聯結柱塞系統之吸收器主體 且僅裝設示於圖1中之回位檢查開關的安裝結構之情況： 圖3 A係在柱塞擴展中的電梯衝擊緩衝裝置之槪略前視圖 ，且圖3 B係在柱塞收縮中的電梯衝擊緩衝裝置之槪略前 視圖。 圖4係在使用多級聯結柱塞系統的吸收器主體之情況 φ 中，圖1之回位檢查開關的安裝結構係被裝設供每一柱塞 用之電梯衝擊緩衝裝置的槪略前視圖。 圖5係一槪略前視圖，顯示本發明之第一實施例的電 · 梯衝擊緩衝裝置。 ’ 圖6係一立體圖，顯示本發明之第一實施例的一滑輪 . 機構之滑輪多繞組機構。 圖7係一圖式’用以解釋可移動滑輪相關於本發明之 第一實施例的滑輪機構中之可撓長構件的下降尺寸之下 -22- (18) (18)590978 降距離。 圖8係一槪略前視圖，顯示本發明之第二實施例的電 梯衝撃緩衝裝置。 圖9係一槪略前視圖，顯示本發明之第三實施例的電 梯衝撃緩衝裝置。 圖1 〇係一槪略前視圖，顯示本發明之第四實施例的電 梯衝撃緩衝裝置。 圖1 1係一槪略前視圖，顯示本發明之第五實施例的電 梯衝撃緩衝裝置。 圖1 2係一槪略前視圖，顯示本發明之第六實施例的電 梯衝撃緩衝裝置。 圖1 3係一槪略前視圖，顯示本發明之第七實施例的電 梯衝撃緩衝裝置。 圖1 4係一槪略前視圖，顯示本發明之第1 1實施例的電 梯衝撃緩衝裝置。 主要元件對照表 1 A〜1H 電梯衝擊緩衝裝置 2 液壓衝撃緩衝裝置主體 3 滑輪機構 4 回位檢查開關 4a 開關主體 4b 作業臂 5 汽缸 -23- (19)590978 6a 柱塞 6b 柱塞 6 c 柱塞 7 裝附臂 8 第一固定部位 9 可撓長構件 10 滑輪多繞組機構Any interference. Therefore, a highly reliable shock buffer device 1 E can be obtained. In addition, according to the fifth embodiment, since the -18- (14) adhesion of dust or the like to the movable pulleys 12a, 12b is prevented as much as possible through the outer cover 22. It is possible to prevent the failure of the flexible member 9 or the movable pulleys 12a, 12B due to dust or the like as much as possible. (Sixth embodiment) Fig. 12 is a schematic front view of an elevator shock absorbing device 1F according to a sixth embodiment of the present invention. As shown in Fig. 12, the sixth embodiment differs from the fourth embodiment in that the impact buffer device 1F of the elevator differs from the fourth embodiment in that the guide rail 23 is installed to guide the tension device load 20 to move up and down. The other components are similar to those of the fourth embodiment and are designated by similar reference numerals, and a description thereof will be omitted. The operation of the elevator shock absorbing device 1F of the sixth embodiment is similar to that of the fourth embodiment. With this operation, in the impact buffering device of the impact buffering device body 2 using the multi-stage connecting plungers 6a to 6c, the return check switch 4 can be reliably and normally operated, and does not have the same as the mounting surface 17 of the cylinder 5 Any interference. Therefore, a highly reliable impact buffer device 1F can be obtained. In addition, according to the sixth embodiment, the swing of the movable pulleys 12a, 12b or the flexible elongated member 9 is suppressed by the tension device load 20, so that the movable pulleys 12a, 12b, etc. are smoothly moved. (Seventh embodiment) Fig. 13 is a schematic front view of an elevator shock absorbing device 1G according to a seventh embodiment of the present invention. As shown in FIG. 13, the seventh embodiment of the elevator buffering device 1G is different from the -19th (15) (15) 590978 fifth embodiment in that a compression spring 24 is arranged to move downward to move The elastic advance mechanism of the pulleys 12a and 12b. The other components are similar to the fifth embodiment and are represented by similar reference numerals, and a description thereof will be omitted. The operation of the elevator shock absorbing device 1G of the seventh embodiment is similar to that of the fifth embodiment. With this operation, in the punching buffer device using the multi-stage connecting plungers 6a to 6c, the return check switch 4 can be reliably and normally operated without contacting the mounting surface of the cylinder 5. 17 has any interference. Therefore, a highly reliable impact buffer device 1G can be obtained. In addition, according to the seventh embodiment, since the movable pulleys 12a, 12b can be easily moved by the urging force of the compression spring 24 when the plungers 6a to 6c are expanded / contracted, the flexible long member 9 can be prevented as much as possible Of relaxation. Therefore, failure and entanglement of the flexible member 9 due to slack can be prevented. According to the seventh embodiment, the elastic pushing member is composed of a compression spring 24. However, any mechanism may be applied as long as it can apply an initial downward thrust force to the movable pulleys 12a, 12b. (Eighth Embodiment) Fig. 14 is a schematic front view of an elevator shock absorbing device 1H according to an eighth embodiment of the present invention. < As shown in FIG. 14, the eighth embodiment of the elevator shock absorbing device 1H is different from the fifth embodiment in that the attachment arm 7 is set to be long, and an end of an enlarged link · 25 is connected with the The movable pulleys 12a, 12b are coupled on the side (specifically, under the tension device load 20), and the other end thereof is coupled to the working arm 4b of the return check switch 4. In the enlargement link 25, a point 26 is set to -20- (16) so that the lowering displacement of each movable pulley 12a, 12b is transmitted to the other end thereof with the enlarged displacement. The other components are similar to the fifth embodiment and are represented by similar reference numerals, and a description thereof will be omitted. Incidentally, the attachment arm 7 may be set to a length equivalent to that of the other embodiments. The operation of the elevator shock absorbing device 1H of the eighth embodiment is similar to that of the fifth embodiment. With this operation, in the impact buffering device of the impact buffering device body 2 using the multi-stage connecting plungers 6a to 6c, the return check switch 4 can be reliably and normally operated, and does not have the same as the mounting surface 17 of the cylinder 5 Any interference. Therefore, a highly reliable impact buffer device 1H can be obtained. In addition, according to the eighth embodiment, the down stroke of each movable pulley 12a, 12b is converted to a large displacement by the magnifying link 25, and the return check switch 4 can be operated by this large displacement. Therefore, the return check switch 4 can be operated surely and accurately. That is, because the descending stroke of each moving pulley 12a, 12b is set to be short (set at least shorter than the height dimension of the cylinder 5), if the return check switch 4 is directly operated by the short descending stroke, it will malfunction. By using the eighth embodiment, this possibility can be reliably eliminated. According to the embodiment, the multi-stage connecting plungers 6a to 6c are each configured in three stages. Needless to say, the present invention can be applied to two, four or more stages. Industrial Applicability As mentioned before, according to the present invention, the drop size of the flexible member can be absorbed by the drop of the movable pulley, and the drop size of the flexible member can be sufficiently reduced by the moveable pulley. Absorbed. In addition, because the flexible long member at the lower part -21-(17) (17) 590978 is suspended between the fixed pulley and the movable pulley and is absorbed, there is an advantage that no entanglement occurs. According to the present invention, the return check switch can be operated surely and normally without any interference with the mounting surface of the cylinder. [Brief description of the drawings] Figure 1 is a schematic front view showing a conventional example of an elevator shock absorbing device. _ Figure 2 is a schematic front view showing an elevator shock absorbing device of another conventional example. Fig. 3 A and SB show the installation structure of the absorber main body using the multi-stage connection plunger system and only the return check switch shown in Fig. 1 is installed: Fig. 3 A is the elevator shock buffer in the plunger extension A schematic front view of the device, and FIG. 3B is a schematic front view of the elevator shock buffer device with the plunger retracted. Fig. 4 is a schematic front view of an elevator shock buffer device for each plunger in a case φ of the case of an absorber main body using a multi-stage connected plunger system. . Fig. 5 is a schematic front view showing an electric shock absorber for an elevator according to a first embodiment of the present invention. 6 is a perspective view showing a pulley multi-winding mechanism of a pulley. Mechanism according to the first embodiment of the present invention. Fig. 7 is a diagram for explaining the movable pulley in relation to the lowering dimension of the flexible elongated member in the pulley mechanism of the first embodiment of the present invention. (22) (18) (18) 590978 Lowering distance. Fig. 8 is a schematic front view showing an elevator shock absorber according to a second embodiment of the present invention. Fig. 9 is a schematic front view showing an elevator shock absorber according to a third embodiment of the present invention. Fig. 10 is a schematic front view showing a fourth embodiment of the elevator cushioning device according to the present invention. Fig. 11 is a schematic front view showing an elevator punching buffer device according to a fifth embodiment of the present invention. Fig. 12 is a schematic front view showing an elevator hoisting buffer device according to a sixth embodiment of the present invention. Fig. 13 is a schematic front view showing a seventh embodiment of an elevator punching buffer device according to the present invention. Fig. 14 is a schematic front view showing the elevator shock absorber of the eleventh embodiment of the present invention. Main component comparison table 1 A ~ 1H Elevator shock buffer device 2 Hydraulic shock buffer device body 3 Pulley mechanism 4 Return check switch 4a Switch body 4b Working arm 5 Cylinder-23- (19) 590978 6a Plunger 6b Plunger 6 c Column Plug 7 Attachment arm 8 First fixing part 9 Flexible long member 10 Pulley multi-winding mechanism
11 軸線 12a 可移動滑輪 12b 可移動滑輪 13 固定滑輪 14 第二固定部位 15 電纜 16 電梯箱 17 安裝表面11 Axis 12a Moveable pulley 12b Moveable pulley 13 Fixed pulley 14 Second fixed part 15 Cable 16 Elevator box 17 Mounting surface
18 裝附構件 20 張力裝置載重 21 凸輪 22 外蓋 23 導軌 24 壓縮彈簧 25 放大連桿 26 支點 100A-100D 電梯衝擊緩衝裝置 -24- (20)590978 10 1 液壓衝撃緩衝裝置主體 102 汽缸 103 柱塞 l〇3a 柱塞 l〇3b 柱塞 l〇3c 柱塞 104 壓縮彈簧18 Attachment member 20 Tension device load 21 Cam 22 Cover 23 Guide rail 24 Compression spring 25 Amplified connecting rod 26 Pivot point 100A-100D Elevator shock buffer device-24- (20) 590978 10 1 Hydraulic shock buffer device body 102 Cylinder 103 Plunger l〇3a plunger 103b plunger 103c plunger compression spring
105 凸輪裝附臂 10 6 凸輪桿 10 7 回位檢查開關 l〇7a 作業臂 108 開關裝附臂 109 電纜 no 電梯箱 111 裝附臂105 Cam attachment arm 10 6 Cam lever 10 7 Return check switch l07a Working arm 108 Switch attachment arm 109 Cable no Elevator box 111 Attachment arm
112 可撓長臂 120 安裝表面 L 1 下降尺寸 L2 下降距離 N 繞組次數 -25-112 Flexible long arm 120 Mounting surface L 1 Drop size L2 Drop distance N Number of windings -25-