1269864 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係關於可將尺帶捲取收納至尺盒內之捲尺，尤 其是關於設置在尺盒之尺帶出入口，而可緩和尺帶捲取時 之尺帶前端卡止片的衝撞力量、及因尺盒之掉落等導致尺 帶上方移動時的衝撞力量之衝擊緩衝裝置。 【先前技術】 現今，捲尺係有用以測量數十公尺等長距離之手捲式 之捲尺、及用以測量數公尺之自動捲取式之捲尺。其中， 亦以自動地捲取測量用尺帶之自動捲取式之捲尺爲普遍大 眾所使用。 該捲尺係由將尺帶捲轉至捲胴部並且內裝有作爲捲取 該尺帶之彈壓手段的螺旋彈簧之旋轉筒、及收納該旋轉筒 之盒子所構成。然後，因尺帶被收納於盒子內’在測量之 際，以手指將卡止於盒子的尺帶出入口之尺帶前端的卡止 片拉出，接著將被拉出的尺帶再拉出來進行測量。 然後，測量結束而將尺帶收納於盒內之際，藉由解除 被尺帶制動裝置或手所停止之尺帶之制動’尺帶則藉由內 裝於盒內的旋轉筒之螺旋彈簧自動地被捲取至盒內’且尺 帶前端之卡止片則被卡止於尺帶出入口而結束尺帶之捲 取。 又，在尺帶出入口設有衝擊緩衝裝置，用來緩和（亦 包含吸收作用）以相當的速度衝撞尺帶出入口之卡止片的 -5- (2) 1269864 衝撞力量。 【發明內容】 (發明所欲解決之問題） 但，由於衝擊緩衝裝置係以緩和卡止片的衝撞力量之 目的所構成，因此只可朝盒子之深度方向的緩衝動作，而 無法緩和來自卡止片的衝撞以外的方向之衝擊。 因此，當卡止片卡止於尺帶出入口之狀態時，因將捲 尺掉落或碰撞到別的構件，而卡止片從其下方向受到衝擊 之情況下，即卡止片在底部受到衝擊之情況下，卡止片則 被朝盒子之上方向上壓，且隨著該動作尺帶亦朝上方移動 而碰撞到衝擊緩衝裝置，而常常衝擊緩衝裝置、尺帶或卡 止片會損壞掉。 因此，本發明係鑑於上述之問題點而作成，其目的在 於提供一種可緩和尺帶捲取時之卡止片的衝撞力量、及在 卡止片卡止於尺帶出入口之狀態中，因尺盒之掉落等導致 卡止片之上方移動時的衝撞力量之捲尺之衝擊緩衝裝置。 [用以解決問題之手段] 本發明之要點爲：一種捲尺之衝擊緩衝裝置，係針對 設置在尺盒之尺帶出入口，且用以緩和尺帶捲取時之尺帶 前端卡止片的衝撞力量、及因尺盒之掉落等導致卡止片等 之上方移動時的衝撞力量之衝擊緩衝裝置，其特徵爲：該 衝擊緩衝裝置係由具有尺帶通孔且可將尺帶前端之卡止片 擋住之擋住體、及從該擋住體的後面上方與擋住體空出適 -6- (3) 1269864 當的距離而下垂之臂體所構成，且形成在該臂體的預定部 位之卡合部係嵌合或滑嵌於形成在尺盒之導引手段。 以下，詳細說明本發明的捲尺之衝擊緩衝裝置。尺盒 係收納測量用的尺帶之構件，亦爲捲尺之本體。 該尺盒係由適當形成所希望的形狀之樹脂或金屬等之 材料所形成，而在尺盒之內側壁豎設著軸，且在該軸支承 著將印刷有刻度之測量用的尺帶捲繞於周圍之旋轉筒。 又，在該旋轉筒之內部設有用以捲取尺帶之螺旋狀的 捲取彈簧，且尺帶係朝捲取方向被彈壓。 該尺帶係從設置在尺盒的前壁下方之尺帶出入口進 出，又，在尺帶之捲取結束時，藉由在尺帶前端之卡止片 卡止於尺帶出入口，而阻止尺帶被拉進尺盒內。接著，因 卡止片係以相當的速度衝撞尺帶出入口，故在該尺帶出入 口設置用以緩和（亦包含吸收作用）卡止片的衝撞力量之 衝擊緩衝裝置。 衝擊緩衝裝置，係由具有尺帶通孔且可將尺帶前端之 卡止片擋住之擋住體、及從該擋住體的後面上方與擋住體 空出適當的距離而下垂之臂體所構成，且形成在該臂體的 預定部位之卡合部係嵌合或滑嵌於形成在尺盒之導引手 段。卡合部係將臂體本體之一部分作爲卡合用之部分來使 用，或亦可形成專作爲卡合用。 又，形成衝擊緩衝裝置之材料亦無特別限定，但由成 型性優越的適當之樹脂材料來形成爲較佳。 擋住體右成爲可擋住在尺帶被捲取時衝撞的尺帶前端 (4) 1269864 卡止片之形態即可，接著，擋住體之本體或衝撞部之厚度 等’亦是考慮根據使用的捲尺之種類的尺帶衝撞力量之強 弱和卡止片之大小等而適當地選定合適的厚度即可。 接著’亦可以同樣的厚度形成擋住體整體，或根據部 位來改變厚度。亦可將厚度之變化形成段階狀或錐形狀。 尺帶通孔之大小或形狀亦並無特別限定，什麼形狀均 可’但形成接近尺帶的斷面形狀之槪月牙形狀爲較佳。接 著’亦可考慮將尺帶穿過通孔之際，而在擋住體之適當的 部位設置與尺帶通孔相連之縫隙。 又’擋住體之前面即尺帶之衝撞面，係亦可將其整面 作成平坦面’但在尺帶收納於尺盒內而卡止片位於尺帶之 衝撞面之狀態中，亦可從卡止片之上方部位即擋住體之前 面上方，朝尺帶之拉出方向突出形成遮簷。遮簷之突出 量，係使其突出至少卡止片之厚度以上爲較佳。 臂體係從擋住體的後面上方與擋住體空出適當的距離 而下垂，並且形成在該臂體的預定部位之卡合部係嵌合或 滑嵌於形成在尺盒之導引手段。藉此，衝擊緩衝裝置被設 置於尺帶出入口之預定的位置。 擋住體的後面上方，係在尺帶前端之卡止片位於擋住 體之前面即尺帶之衝撞面之狀態中，爲較該卡止片之大致 上端更上方的範圍之部位，且於該部位設置臂體之基部即 根部。又，亦可將臂體之基部適當地補強形成。臂體係與 擋住體一體成型爲較佳。 又，臂體與擋住體之間隙，係按照因卡止片之衝撞導 -8- (5) 1269864 致的擋住體下方部之變形量即被壓入之程度來選定即可。 其係考慮根據使用之捲尺的種類之尺帶衝撞力量之強弱和 卡止片之大小等而適當地選定即可。 接著，臂體之下垂量，係與形成在該臂體之卡合部有 關，且該卡合部係以擋住體是否能充分保持因尺帶捲取之 卡止片的衝撞力量來決定。即，因卡合部若位在卡止片的 衝撞範圍面之後方的話則在力量上有利，故使卡合部位於 該範圍內地將臂體下垂。接著，卡合部係形成在臂體之下 方爲較佳。 但是，若將臂體本體作爲卡合部的補強手段來利用之 形態的話，卡合部亦可位於從卡止片的衝撞範圍面之後方 脫離之位置。具體上，臂體之下端至少下垂到卡止片的衝 撞範圍內，並且藉由使臂體之尺帶捲取方向之面的一部分 或全部槪擋接於尺盒本體，可將卡合部形成於從卡止片的 衝撞範圍內脫離的臂體之上方（較尺帶上方）。即，使因 尺帶捲取之卡止片的衝撞力量在臂體之槪擋接於尺盒本體 之部位承受即可。 接者’在形成於臂體之卡合部與形成於尺盒之導引手 段之嵌合或滑嵌中，嵌合係使卡合部不能自由移動地嵌於 導引手段之狀態，但是，必須至少擋住體可朝尺帶出入口 之上方轉動變形地嵌合。具體上，使臂體或嵌合部能夠可 回復地變形。 又’滑嵌係使卡合部可自由移動地嵌於導引手段之狀 態’具體上爲支承，而擋住體可朝尺帶出入口之上方自由 (6) 1269864 地轉動。其係將卡合部形成於尺帶橫寬方向的兩端附近， 即，使軸朝尺盒的左右側壁之方向突出，且以形成於尺盒 的左右側壁之導引手段之軸承將該軸支撐。此種卡合部及 導引手段之形成形態亦適用於前述之嵌合的情況。 接著，在擋住體朝尺帶出入口之上方轉動之際，亦可 在衝擊緩衝裝置的適當之部位設置用以強制回復至原來的 位置之適當的回復手段。回復手段係適於滑嵌卡合部之情 況。當然，亦可設於嵌合之情況。然後，亦可不使用回復 手段，而藉由尺帶之自己回復作用（由尺帶之彎曲形狀） 使擋住體回復。 臂體之設置形態亦並無特別限定，對於尺帶之通過沒 有障礙的話，亦可以任何之形態（形狀）設置。具體上， 亦可將臂體從擋住體的後面上方之尺帶橫寬方向的兩端附 近以一對設置。接著，亦可在分別的臂體之下方架設橋來 補強。 對於前述之卡合部’亦可將卡合部並非形成於臂體形 成在別的構件，而將該別的構件安裝於臂體。別的構件係 至少與臂體一體成型爲較佳。 具體上，將別的構件從臂體之下方朝尺帶之捲取方向 突出形成，而於該突出構件形成卡合部。該突出構件與臂 體之連接部爲突出構件之基部即根部。 接著，對於該卡合部與形成於尺盒之導引手段之嵌合 或滑嵌，如上所述，亦可將適用卡合部及導引手段之形成 形態，並且，在擋住體朝尺帶出入口之上方轉動之際，用 -10- (7) 1269864 以強制地使回復至原來的位置之適當的回復手段’包含別 的構件而設置在衝擊緩衝裝置之適當的部位。 接著，作爲衝擊緩衝裝置之具體的構造’係由：具有 尺帶通孔且可將尺帶前端卡止片擋住之擋住體、及從擋住 體的後面上方之尺帶橫寬方向之兩端附近與擋住體空出適 當的距離而下垂且在下方端附近架設橋之一對臂體、及具 有從該臂體之下方朝尺帶之捲取方向突出形成而嵌合或滑 嵌於形成在尺盒之導引手段的卡合部之卡合體構成爲較 佳。 衝擊緩衝裝置，係由可一體成型的樹脂等之材料形成 爲較佳。又，臂體之基部係亦可適當地補強形成。 在此種形態也是，擋住體在尺帶被收納於尺盒內而卡 止片位於尺帶之衝撞面的狀態下，從擋住體的卡止片之上 方部位即擋住體的前面上方，將遮簷朝尺帶之拉出方向突 出形成至少卡止片的厚度以上爲較佳。 又’擋住體朝尺帶出入口之上方轉動之際，將用以強 制地使回復至原來的位置之適當的回復手段，設置在衝擊 緩衝裝置之適當的部位爲較佳，該情況之回復手段係在臂 體及/或卡合體形成朝尺帶之捲取方向突出之舌狀體，且 擋住體朝尺帶出入口之上方轉動之際，該舌狀體之適當的 部位擋接於尺盒之內壁等而使舌狀體彎曲。當然，舌狀體 係可彎曲之材料，但若可彎曲的話亦可用與衝擊緩衝裝置 之成形材料同樣的材料來形成。回復手段係適合於滑嵌卡 合部之情況。 -11 - (8) 1269864 [作用] 本發明之捲尺之衝擊緩衝裝置係如上述所構成’因此 尺帶被捲取而尺帶前端的卡止片衝撞至衝擊緩衝裝置之擋 住體時，由於該衝撞，擋住體則以臂體之基部即根部爲支 點朝尺帶的捲取方向之下方向轉動，且臂體則以卡合部爲 支點朝尺帶的捲取方向之上方向轉動。又，卡合部設置在 突出構件之情況時，臂體係以突出構件之基部即根部爲支 點朝尺帶的捲取方向之上方向轉動。即，藉由擋住體及臂 體朝向尺帶的捲取方向彎曲變形，衝撞力量則被吸收去。 又，由於捲尺之掉落或碰撞到別的構件，對卡止片從 其下方向加諸衝擊時，因該衝擊，卡止片則與尺帶一起被 朝上方向上壓而衝撞至擋住體的尺帶通孔之上部時，因該 衝撞，衝擊緩衝裝置則以卡合部爲支點朝尺帶的捲取方向 之上方向轉動。即，藉由該轉動，卡止片與尺帶則朝上方 向躱開，且卡止片受到之衝擊則被吸收去。 卡合部爲滑嵌狀態者，係衝擊緩衝裝置以卡合部爲支 點朝尺帶的捲取方向之上方向自由地轉動之際，藉由回復 手段之彎曲等之變形，卡止片受到之衝擊被吸收，且變成 回復用之彈壓手段，之後卡止片回復。又，無設置回復手 段者，係藉由尺帶之變形使卡止片受到之衝擊被吸收，且 以尺帶之自己回復作用將卡止片回復。 又’卡合部爲嵌合狀態者，係衝擊緩衝裝置以卡合部 爲支點朝尺帶的捲取方向之上方向轉動之際，藉由臂體和 卡合部之扭曲等之變形，卡止片受到之衝擊被吸收，且變 -12- (9) 1269864 成回復用之彈壓手段，之後卡止片回復。 【實施方式】 [發明之實施形態] 以下，參照圖面說明本發明的捲尺之衝擊緩衝裝置。 第1圖係本發明的衝擊緩衝裝置之立體圖，而圖號1爲衝 擊緩衝裝置，圖號2爲擋住尺帶前端的卡止片之擋住體， 圖號2 1爲形成於擋住體2之上方的遮簷，圖號2 2爲尺 帶通過之尺帶通孔，在本圖中係呈接近尺帶的斷面形狀之 月牙形狀。圖號3爲自擋住體2之後面上方下垂之臂體， 圖號3 1爲連結一對被設置之分別的臂體3之橋，圖號4 爲形成卡合部5之突出構件，卡合部5係卡合於形成在尺 盒7之導引手段9。圖號6爲彈性體，係用來使吸收衝擊 之衝擊緩衝裝置1在以卡合部5爲支點朝上方向回轉移動 後回復之彈性體。該彈性體係舌狀物。 第2圖係衝擊緩衝裝置之側面圖。 第3圖係尺盒內部的尺帶出入口附近之擴大側面圖， 圖號7爲捲尺之盒子，圖號8爲尺帶1 2出入之尺帶出入 口，圖號9爲形成於尺盒7之與衝擊緩衝裝置1之卡合部 5卡合之導引手段，圖號1 〇爲將尺帶1 2捲轉之旋轉 筒，圖號1 1爲用以使尺帶停止之制動器，圖號1 2爲量 測用之尺帶，其前端設有卡止片1 3。 第4圖係顯示卡止片從下方施加衝擊時之衝擊緩衝動 作之圖，由於尺盒之掉落或碰撞到別的構件，於卡止片1 3從其下方向施加衝擊時，卡止片1 3則與尺帶1 2 —起 •13- (10) 1269864 被朝上方向上壓，更且，衝擊緩衝裝置1之擋住體2亦與 卡止片1 3及尺帶1 2 —起被朝上方向上壓。即，衝擊緩 衝裝置1將卡合於尺盒7之導引手段9的卡合部5作爲支 點朝上方向轉動而躲開。此時，由於一邊使彈性體6變形 一邊進行，因此衝擊係逐漸地被吸收。 第5圖係顯示尺帶捲取時之衝擊緩衝動作之圖，尺帶 1 2被捲取而尺帶1 2之前端的卡止片1 3衝撞於衝擊緩 衝裝置1之擋住體2時，由於其衝撞，擋住體2則會以臂 體3之基部即根部爲支點朝尺帶1 2之捲取方向的下方向 轉動，且臂體3則會以突出構件4之基部即根部爲支點朝 尺帶1 2之捲取方向的上方向轉動。又，由於衝撞，臂體 3本身亦大爲變形。即，藉由擋住體2與臂體3朝向尺帶 1 2之捲取方向彎曲變形，衝撞力量則被吸收去。 第6圖係顯示其他實施形態之衝擊緩衝裝置的一例之 圖，而圖號1爲衝擊緩衝裝置，圖號2爲擋住尺帶前端的 卡止片之擋住體，圖號2 2爲尺帶通過之尺帶通孔，圖號 3爲自擋住體2之後面上方下垂之臂體，圖號3 1爲連結 一對被設置之分別的臂體3之橋。圖號5係與形成在尺盒 7之導引手段9卡合之卡合部，在本圖中係形成在臂體3 之下方部的兩端。圖號6爲彈性體，係使用以吸收衝擊之 衝擊緩衝裝置1以卡合部5爲支點朝上方向旋轉移動後回 復之彈性體。 第7圖係顯示其他實施形態之衝擊緩衝裝置的一例之 圖，本圖係將與形成在尺盒7之導引手段9卡合之卡合部 -14- (11) 1269864 5 ’形成在臂體3之上方部的兩端。即，卡合部5係位於 從卡止片1 3之衝撞範圍面的後方脫離之位置。 此時之卡止片1 3的衝撞力量之吸收，係由於臂體3 藉由卡合部5與尺盒7之掣子1 4所支撐，因此擋住體2 係以臂體3之基部即根部爲支點朝向尺帶12之捲取方向 彎曲變形，藉此，衝撞力量則被吸收去。又，於卡止片從 其下方向施加衝擊時之衝撞力量的吸收，係衝擊緩衝裝置 1以卡合部5作爲支點朝上方向轉動而躱開。此時，由於 一邊使彈性體6變形一邊進行，因此衝擊係逐漸地被吸 收。 第8圖係顯示其他實施形態之衝擊緩衝裝置的一例之 圖，本圖係將臂體3之一部分作爲卡合用之部分，其部位 係與形成於尺盒7之導引手段9卡合。即，將臂體3之自 由端作爲卡合用之部分，而其自由端則成爲臂體3之卡合 部5。 此時之卡止片1 3的衝撞力量之吸收，係擋住體2以 臂體3之基部即根部爲支點朝尺帶1 2之捲取方向的下方 向轉動’且臂體3則會槪以卡合部5爲支點朝尺帶1 2之 捲取方向的上方向轉動。又，由於衝撞，臂體3本身亦大 爲變形。即’藉由擋住體2與臂體3朝向尺帶1 2之捲取 方向彎曲變形，衝撞力量則被吸收去。 第9圖係顯示卡合部與導引手段之卡合關係的一例之 圖，本圖係臂體3之卡合部5與尺盒7之導引手段9之卡 合爲滑嵌者。 •15- (12) 1269864 將卡合部5作爲圓軸5 1 ，且將導引手段9作爲圓軸 承9 1 ’而在卡止片1 3從其下方向施加衝擊之情況下， 衝擊緩衝裝置1則自由地朝上方旋轉移動。又，旋轉移動 後之回復係藉由彈性體6來進行。 第1 0圖係顯示卡合部與導引手段之卡合關係的一例 之圖’本圖係臂體3之卡合部5與尺盒7之導引手段9之 卡合爲嵌合者。 將卡合部5作爲方軸5 2，且將導引手段9作爲方軸 承9 2 ，而在卡止片1 3從其下方向施加衝擊之情況下， 衝擊緩衝裝置1則抗拒卡合部5之嵌合，且一邊使臂體3 變形一邊朝上方旋轉移動。又，旋轉移動後之回復係藉由 卡合部5及臂體3之自己回復作用來進行。 [發明之效果] 本發明之捲尺之衝擊緩衝裝置係如上述所構成，因此 尺帶捲取時之卡止片的衝撞力量之吸收係不用說，在卡止 片卡止於尺帶出入口之狀態中，因尺盒之掉落等導致卡止 片從其下方向受到衝擊之情況下，衝擊緩衝裝置1亦可朝 上方躲開，並可吸收衝擊，故可防止卡止片或尺帶甚至尺 盒之尺帶出入口等之損壞。 又，可將衝擊緩衝裝置一體地形成，並且衝擊緩衝裝 置之往尺盒內的安裝構造亦極簡單’因此不但組裝作業容 易且亦可防止製造失誤等。 再者，在對於無裝備衝擊緩衝裝置之捲尺要重新裝備 -16- (13) 1269864 之情況，或對於只緩和卡止片的衝撞力量之捲尺要裝備之 情況，由於衝擊緩衝裝置之往尺盒內的安裝構造極爲簡 單，因此均可容易地裝備。 【圖式簡單說明】 第1圖係本發明的衝擊緩衝裝置之立體圖。 第2圖係衝擊緩衝裝置之側面圖。 第3圖係尺盒內部的尺帶出入口附近之擴大側面圖。 第4圖係顯示卡止片從下方施加衝擊時之衝擊緩衝動 作之圖。 第5圖係顯示尺帶捲取時之衝擊緩衝動作之圖。 第6圖係顯示其他實施形態之衝擊緩衝裝置的一例之 圖。 第7圖係顯示其他實施形態之衝擊緩衝裝置的一例之 圖。 第8圖係顯示其他實施形態之衝擊緩衝裝置的一例之 圖。 第9圖係顯示卡合部與導引手段之卡合關係的一例之 圖。 第1 0圖係顯示卡合部與導引手段之卡合關係的一例 之圖。 [主要兀件對照表] :衝擊緩衝裝置 -17- (14)1269864 2 :擋住體 2 1 :遮簷 2 2 :尺帶通孔 3 =臂體 3 1 :橋 4 =突出構件 5 :卡合部 5 1 :圓軸 5 2 :方軸 6 :彈性體 7 :尺盒 8 :尺帶出入口 9 =導引手段 9 1 :圓軸承 9 2 :方軸承 1 0 :旋轉筒 1 1 :制動器 1 2 :尺帶 1 3 :卡止片 1 4 :掣子1269864 (1) 玖 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 The impact force of the front end of the tape when the tape is taken up, and the impact cushioning device of the collision force when the ruler is moved by the ruler. [Prior Art] Today, the tape measure is a hand roll type tape measure for measuring a distance of several tens of meters, and an automatic take-up type tape measure for measuring several meters. Among them, an automatic take-up type tape measure that automatically winds up the measuring tape is commonly used by the general public. The tape measure is composed of a rotating drum that winds the tape to the winding portion and which is provided with a coil spring that is a spring pressing means for winding the tape, and a box that houses the rotating drum. Then, the tape is stored in the box. 'At the time of measurement, the locking piece at the front end of the tape that is locked at the entrance and exit of the tape is pulled out with a finger, and then the pulled tape is pulled out again. measuring. Then, when the measurement is completed and the tape is stored in the case, the brake tape of the tape is stopped by the tape brake device or the hand. The tape is automatically rotated by the coil spring of the rotary cylinder built in the case. The ground is taken up into the box' and the locking piece at the front end of the tape is locked at the tape entrance and exit to end the tape winding. In addition, an impact buffering device is provided at the entrance and exit of the tape to relieve (and also absorb) the collision force of the -5-(2) 1269864 of the locking piece of the tape entrance and exit at a considerable speed. SUMMARY OF THE INVENTION (Problems to be Solved by the Invention) However, since the shock absorbing device is configured to alleviate the collision force of the locking piece, it can only be buffered in the depth direction of the case, and the carding cannot be alleviated. The impact of the direction of the film outside the collision. Therefore, when the locking piece is locked in the state of the tape entrance and exit, the locking piece is impacted from the bottom direction because the tape is dropped or collided with another member, that is, the locking piece is impacted at the bottom. In this case, the locking piece is pressed toward the upper direction of the box, and as the action tape moves upwards, it collides with the impact buffer device, and often the impact buffer device, the tape or the locking piece is damaged. . Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a collision strength capable of alleviating a locking piece when the tape is taken up, and a state in which the locking piece is locked in the tape entrance and exit. The impact buffer device of the tape measure that causes the impact force to move above the locking piece when the box is dropped. [Means for Solving the Problem] The gist of the present invention is: a shock absorbing device for a tape measure, which is directed to an entrance and exit of a tape measure provided on a ruler box, and is used for mitigating the collision of the front end of the tape at the tape when the tape is taken up. The impact buffering device for the impact force when moving over the locking piece or the like due to the drop of the ruler box, etc., is characterized in that the shock absorbing device is a card having a tape through hole and a front end of the tape The blocking piece blocks the body, and the arm body that hangs from the upper side of the blocking body and the occlusion body occupies a distance of -6-(3) 1269864, and forms a card at a predetermined portion of the arm body. The fitting is fitted or slid into the guiding means formed on the ruler. Hereinafter, the impact cushioning device of the tape measure of the present invention will be described in detail. The ruler box is a member for accommodating a tape for measurement, and is also a body of a tape measure. The ruler case is formed of a material such as a resin or a metal which is formed into a desired shape, and a shaft is erected on the inner side wall of the ruler case, and the tape roll for measuring the scale is supported on the shaft. Rotate around the surrounding drum. Further, a coiled coil spring for winding the tape is provided inside the rotary cylinder, and the tape is biased in the winding direction. The ruler belt enters and exits from the entrance and exit of the ruler disposed under the front wall of the ruler box, and at the end of the winding of the tape, the stop piece at the front end of the tape is locked at the entrance and exit of the tape, and the ruler is blocked. The belt is pulled into the ruler box. Then, since the locking piece hits the tape entrance and exit at a relatively high speed, an impact cushioning device for mitigating (including absorbing) the impact force of the locking piece is provided at the tape inlet and outlet. The shock absorbing device is composed of a blocking body having a tape through hole and blocking the locking piece at the front end of the tape, and an arm body sag from the rear side of the blocking body and sag at an appropriate distance from the blocking body. And the engaging portion formed at a predetermined portion of the arm body is fitted or slidably fitted to the guiding means formed on the ruler case. The engaging portion is used as a part for engaging the body of the arm body, or may be formed to be used exclusively for engaging. Further, the material for forming the shock absorbing device is not particularly limited, but it is preferably formed of a suitable resin material having excellent formability. Blocking the right side of the body becomes a front end of the tape that can be blocked when the tape is taken up. (4) 1269864 The form of the locking piece can be, and then the thickness of the body or the collision part is blocked. The appropriate thickness can be appropriately selected by appropriately changing the strength of the tape and the size of the locking piece. Then, the same thickness can be formed to block the entire body or to change the thickness depending on the position. The change in thickness can also be formed into a stepped or tapered shape. The size or shape of the tape through hole is not particularly limited, and any shape may be formed to form a crescent shape which is close to the cross-sectional shape of the tape. Next, it is also conceivable to pass the tape through the through hole, and to provide a gap connecting the tape through hole at a suitable portion of the blocking body. In addition, the front surface of the body is the impact surface of the tape, and the entire surface can be made into a flat surface, but the tape is stored in the ruler box and the locking piece is in the state of the collision surface of the tape. The upper part of the locking piece is above the front surface of the blocking body, and protrudes toward the direction of the tape to form a concealer. The amount of protrusion of the concealer is preferably such that it protrudes at least above the thickness of the locking piece. The arm system hangs from the rear side of the blocking body at an appropriate distance from the blocking body, and the engaging portion formed at a predetermined portion of the arm body is fitted or slidably fitted to the guiding means formed on the ruler case. Thereby, the shock absorbing device is placed at a predetermined position of the tape entrance and exit. In the state of the rear surface of the tape, the locking piece at the front end of the tape is located in the state of the collision surface of the tape before the blocking body, and is a portion above the substantially upper end of the locking piece, and is at the portion Set the base of the arm, the root. Further, the base of the arm body may be appropriately reinforced. It is preferred that the arm system is integrally formed with the blocking body. Further, the gap between the arm body and the blocking body may be selected in accordance with the degree of deformation of the lower portion of the blocking body caused by the impact guide -8-(5) 1269864 of the locking piece. It is considered that it is appropriately selected depending on the strength of the tape collision force of the type of the tape measure to be used, the size of the locking piece, and the like. Next, the amount of the arm body is determined in relation to the engaging portion formed in the arm body, and the engaging portion is determined by whether or not the blocking body can sufficiently maintain the collision force of the locking piece wound by the tape. In other words, if the engaging portion is located behind the collision range surface of the locking piece, it is advantageous in strength, so that the engaging portion is positioned within the range to hang the arm. Next, it is preferable that the engaging portion is formed below the arm body. However, if the arm body is used as a reinforcing means for the engaging portion, the engaging portion may be located at a position away from the collision range of the locking piece. Specifically, the lower end of the arm body is at least sagged into the collision range of the locking piece, and the engaging portion can be formed by blocking a part or all of the surface of the arm body in the winding direction of the arm body. Above the arm body that is detached from the collision range of the locking piece (above the tape). That is, the collision force of the locking piece wound by the tape may be received by the arm body to be in contact with the body of the ruler. In the fitting or sliding engagement of the engaging portion formed on the arm body and the guiding means formed on the ruler box, the fitting portion allows the engaging portion to be freely moved in the state of the guiding means, however, It is necessary to at least block the body to be rotationally deformed to fit over the tape entrance. Specifically, the arm body or the fitting portion can be reversibly deformed. Further, the 'sliding engagement system allows the engaging portion to be freely movably fitted in the state of the guiding means' to be specifically supported, and the blocking body is rotatable freely above the tape entrance and exit (6) 1269864. The engaging portion is formed in the vicinity of both ends in the lateral direction of the tape, that is, the shaft is protruded in the direction of the left and right side walls of the ruler, and the bearing is formed by the guiding means formed on the left and right side walls of the ruler case. support. The form in which such a engaging portion and the guiding means are formed is also applicable to the above-described fitting. Then, an appropriate return means for forcibly returning to the original position may be provided at an appropriate portion of the shock absorbing device while the body is being rotated toward the upper and lower entrances of the tape. The means of recovery is suitable for sliding the engagement portion. Of course, it can also be set in the case of fitting. Then, instead of using the reply means, the retaining body can be restored by the self-recovery action of the tape (by the curved shape of the tape). The configuration of the arm body is also not particularly limited, and may be set in any form (shape) without any obstacle to the passage of the tape. Specifically, the arm body may be disposed in a pair from the both ends of the tape widthwise direction above the rear surface of the blocking body. Then, a bridge can be erected under the respective arm bodies to reinforce. The engaging portion may be formed such that the engaging portion is not formed in the arm body and the other member is attached to the arm. It is preferred that the other members are integrally formed with at least the arm body. Specifically, another member is formed to protrude from the lower side of the arm body toward the winding direction of the tape, and the protruding member forms an engaging portion. The connecting portion of the protruding member and the arm is the base of the protruding member, that is, the root. Then, for the fitting or sliding of the engaging portion and the guiding means formed on the ruler box, as described above, the forming form of the engaging portion and the guiding means may be applied, and the blocking body may be blocked. When the upper and lower sides of the entrance and exit are rotated, an appropriate recovery means for forcibly returning to the original position is included with -10 (7) 1269864 to include an appropriate member and is disposed at an appropriate portion of the shock absorbing device. Next, the specific structure of the shock absorbing device is: a block having a through hole and blocking the body at the front end of the tape, and a vicinity of the ends of the tape in the lateral direction from the back of the block. Hanging at an appropriate distance from the blocking body and sagging a pair of arms to the arm body near the lower end, and having a protruding direction from the lower side of the arm body toward the tape winding direction, and fitting or sliding into the ruler It is preferable that the engaging portion of the engaging portion of the guiding means of the cartridge is configured. The shock absorbing device is preferably formed of a material such as an integrally moldable resin. Further, the base of the arm body can be suitably reinforced. In this form as well, the blocking body is housed in the ruler case and the locking piece is located on the collision surface of the tape, and the upper part of the blocking piece of the blocking body is blocked from the front side of the body, and the cover is covered. It is preferable that the thickness of the locking piece protrudes in at least the thickness of the locking piece. Further, it is preferable to provide an appropriate recovery means for forcibly returning to the original position, and to provide an appropriate recovery means for returning to the original position, preferably in the appropriate portion of the impact buffering device. When the arm body and/or the engaging body form a tongue protruding toward the winding direction of the tape, and the blocking body rotates above the tape entrance and exit, the appropriate portion of the tongue is blocked in the ruler box. The wall or the like bends the tongue. Of course, the tongue-like body is a bendable material, but if it is bendable, it can be formed of the same material as the molding material of the shock absorbing device. The means of return is suitable for sliding the snap fit. -11 - (8) 1269864 [Operation] The impact buffering device of the tape measure of the present invention is constructed as described above. Therefore, when the tape is taken up and the locking piece at the front end of the tape strikes the blocking body of the impact buffer device, In the collision, the blocking body rotates in the direction of the winding direction of the tape with the base of the arm, that is, the root, and the arm body rotates in the winding direction of the tape with the engaging portion as a fulcrum. Further, when the engaging portion is provided in the protruding member, the arm system rotates in the upward direction of the winding direction of the tape with the base portion which is the base of the protruding member as a fulcrum. That is, by blocking the body and the arm body from being bent and deformed toward the winding direction of the tape, the collision force is absorbed. Moreover, since the tape measure is dropped or collided with another member, when the locking piece is subjected to an impact from the downward direction, the locking piece is pressed upward with the tape to collide with the blocking body due to the impact. When the tape is passed over the through hole, the shock absorbing device rotates in the winding direction of the tape with the engaging portion as a fulcrum. Namely, by this rotation, the locking piece and the tape are opened upward, and the locking piece is absorbed by the impact. When the engaging portion is in the state of being in the state of being in the state of being in the state of being in the state of being in the state of being in the state of being in the state of being in the state of being in the state of being in the direction of the winding direction of the tape, the impacting device is subjected to deformation by bending or the like of the return means, and the locking piece is received. The impact is absorbed and becomes the means of springback for recovery, after which the card stops. Moreover, if the resetting means is not provided, the locking piece is absorbed by the impact of the tape, and the locking piece is returned by the self-recovery action of the tape. In addition, when the engaging portion is in the fitting state, the impact buffering device is deformed by the twisting of the arm body and the engaging portion when the engaging portion is pivoted toward the winding direction of the tape. The stop piece is absorbed by the impact, and becomes -12-(9) 1269864 into the elastic means for recovery, and then the card stops. [Embodiment] [Embodiment of the Invention] Hereinafter, an impact buffer device for a tape measure of the present invention will be described with reference to the drawings. 1 is a perspective view of the shock absorbing device of the present invention, and FIG. 1 is an impact absorbing device, and FIG. 2 is a blocking body for blocking a locking piece at the front end of the tape, and FIG. 2 is formed above the blocking body 2. The concealer, figure 2 2 is a tape through hole through which the tape passes, and in this figure is a crescent shape close to the cross-sectional shape of the tape. Fig. 3 is an arm body that hangs vertically from the rear surface of the blocking body 2, and reference numeral 3 1 is a bridge that connects a pair of arm bodies 3 that are provided separately, and reference numeral 4 is a protruding member that forms the engaging portion 5, and is engaged. The portion 5 is engaged with the guiding means 9 formed in the ruler box 7. Fig. 6 is an elastic body which is an elastic body for returning the shock absorbing device 1 for absorbing shock to the upper side with the engaging portion 5 as a fulcrum. The elastic system tongue. Figure 2 is a side view of the shock absorbing device. Fig. 3 is an enlarged side view of the vicinity of the entrance and exit of the ruler inside the ruler box, the figure 7 is the box of the tape measure, the figure 8 is the entrance and exit of the ruler with the entrance and exit of the tape, and the figure 9 is formed in the ruler box 7 The guiding means for engaging the engaging portion 5 of the shock absorbing device 1 is shown in FIG. 1 as a rotating drum for rotating the tape 1 2, and the figure 1 1 is a brake for stopping the tape, Figure 1 2 For the measurement tape, the front end is provided with a locking piece 13 . Fig. 4 is a view showing the impact buffering action when the locking piece is subjected to an impact from below, and the locking piece is applied from the lower direction when the locking piece 13 is dropped or collided to another member. 1 3 and the ruler belt 1 2 start • 13- (10) 1269864 are pressed upwards, and further, the blocking body 2 of the impact buffer device 1 is also combined with the locking piece 13 and the tape 1 2 Press upwards. In other words, the impact buffering device 1 rotates the engaging portion 5 of the guiding means 9 that is engaged with the ruler 7 in the upward direction as a fulcrum to escape. At this time, since the elastic body 6 is deformed while being performed, the impact system is gradually absorbed. Fig. 5 is a view showing the impact buffering action when the tape is taken up, the tape 12 is taken up, and the locking piece 13 at the front end of the tape 1 2 collides with the blocking body 1 of the impact buffer device 1 due to its In the collision, the blocking body 2 is rotated in the downward direction of the winding direction of the tape 1 2 with the base of the arm body 3 as a fulcrum, and the arm body 3 is oriented toward the base with the base of the protruding member 4 as a fulcrum. Turn the upper direction of the winding direction of 1 2 . Moreover, due to the collision, the arm body 3 itself is also greatly deformed. That is, by blocking the body 2 and the arm body 3 from being bent and deformed toward the winding direction of the tape 1, the collision force is absorbed. Fig. 6 is a view showing an example of an impact absorbing device of another embodiment, and Fig. 1 is an impact absorbing device, and Fig. 2 is a blocking body for blocking a locking piece at the front end of the tape, and Fig. 22 is a tape passing. The ruler has a through hole, and the figure 3 is an arm that hangs from the back of the body 2, and the figure 31 is a bridge connecting the pair of arm bodies 3 provided. The reference numeral 5 is an engaging portion that engages with the guiding means 9 formed on the ruler 7, and is formed at both ends of the lower portion of the arm body 3 in the figure. Fig. 6 is an elastic body which is an elastic body which is pulsated upward by the impact absorbing device 1 for absorbing the impact with the engaging portion 5 as a fulcrum. Fig. 7 is a view showing an example of an impact absorbing device of another embodiment, and the drawing is formed on the arm with the engaging portion 14-(11) 1269864 5 ' which is engaged with the guiding means 9 formed on the ruler case 7. Both ends of the upper portion of the body 3. That is, the engaging portion 5 is located at a position separated from the rear of the collision range surface of the locking piece 13. At this time, the collision force of the locking piece 13 is absorbed because the arm body 3 is supported by the engaging portion 5 and the latch 14 of the ruler box 7, so that the blocking body 2 is the base of the arm body 3, that is, the root portion. The fulcrum is bent and deformed toward the winding direction of the tape 12, whereby the collision force is absorbed. Further, when the impact piece is absorbed by the impact force from the downward direction, the shock absorbing device 1 is rotated upward by the engaging portion 5 as a fulcrum and is opened. At this time, since the elastic body 6 is deformed while being performed, the impact system is gradually absorbed. Fig. 8 is a view showing an example of the shock absorbing device of another embodiment. This figure is a portion for engaging the arm body 3, and the portion thereof is engaged with the guiding means 9 formed in the ruler case 7. That is, the free end of the arm body 3 is used as a portion for engagement, and the free end thereof is the engaging portion 5 of the arm body 3. At this time, the absorption of the collision force of the locking piece 13 is such that the blocking body 2 rotates in the downward direction of the winding direction of the tape 1 2 with the base of the arm body 3 as a fulcrum as a fulcrum, and the arm body 3 is The engaging portion 5 is rotated in the upward direction of the winding direction of the tape 1 in the fulcrum. Moreover, due to the collision, the arm body 3 itself is also greatly deformed. That is, by blocking the body 2 and the arm body 3 from being bent toward the winding direction of the tape 1 2, the collision force is absorbed. Fig. 9 is a view showing an example of the engagement relationship between the engaging portion and the guiding means. In the figure, the engaging portion 5 of the arm body 3 and the guiding means 9 of the ruler case 7 are engaged as a slipper. • 15-(12) 1269864 The impact absorbing device is used as the round shaft 5 1 and the guiding means 9 is used as the circular bearing 9 1 ', and the locking piece 13 is applied with an impact from the downward direction thereof. 1 is free to rotate upwards. Further, the return after the rotational movement is performed by the elastic body 6. Fig. 10 shows an example of the engagement relationship between the engaging portion and the guiding means. This figure shows the engagement between the engaging portion 5 of the arm body 3 and the guiding means 9 of the ruler box 7 as a fitting. The engaging portion 5 is referred to as a square shaft 52, and the guiding means 9 is used as the square bearing 9 2, and in the case where the locking piece 13 is subjected to an impact from the downward direction thereof, the shock absorbing device 1 resists the engaging portion 5 The fitting is performed, and the arm body 3 is rotated upward while being deformed. Further, the return after the rotational movement is performed by the self-recovery action of the engaging portion 5 and the arm body 3. [Effects of the Invention] The impact buffering device of the tape measure of the present invention is configured as described above. Therefore, the absorption of the collision force of the locking piece during tape winding is not required, and the locking piece is locked in the state of the tape entrance and exit. In the case where the locking piece is impacted from the lower direction due to the falling of the ruler box, the shock absorbing device 1 can also escape upward and absorb the impact, thereby preventing the locking piece or the tape and even the ruler. The ruler of the box is damaged by the entrance and exit. Further, the shock absorbing device can be integrally formed, and the mounting structure in the tape box of the shock absorbing device is extremely simple. Therefore, assembly work is easy and manufacturing errors can be prevented. Furthermore, in the case of re-equipping the tape measure for the unequipped shock absorbing device -16- (13) 1269864, or for the tape measure that only moderates the impact force of the card, due to the impact buffer device The mounting structure inside is extremely simple, so it can be easily equipped. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an impact absorbing device of the present invention. Figure 2 is a side view of the shock absorbing device. Fig. 3 is an enlarged side view of the vicinity of the tape entrance and the inside of the ruler case. Fig. 4 is a view showing the impact buffering action when the locking piece is applied with an impact from below. Fig. 5 is a view showing the impact buffering action when the tape is taken up. Fig. 6 is a view showing an example of an impact buffering device of another embodiment. Fig. 7 is a view showing an example of an impact buffering device of another embodiment. Fig. 8 is a view showing an example of an impact buffering device of another embodiment. Fig. 9 is a view showing an example of the engagement relationship between the engaging portion and the guiding means. Fig. 10 is a view showing an example of the engagement relationship between the engaging portion and the guiding means. [Main item comparison table]: Impact buffer device -17- (14)1269864 2 : Blocking body 2 1 : Concealer 2 2 : Tape with through hole 3 = Arm body 3 1 : Bridge 4 = Projection member 5 : Engagement Part 5 1 : Round shaft 5 2 : Square shaft 6 : Elastomer 7 : Ruler box 8 : Tape exit 9 = Guide means 9 1 : Round bearing 9 2 : Square bearing 1 0 : Rotating cylinder 1 1 : Brake 1 2 : ruler 1 3 : card stop 1 4 : scorpion
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