200938180 九、發明說明 【發明所屬之技術領域】 本發明，係關於設置在醫院等之醫療設施及看護設施 等所使用的病患搬運用之擔架或擔架床等之防止跌落用之 柵欄，尤其，關於可將柵欄旋轉而使其退避於較床面下方 ，而使對於床面可移乘病患之醫院搬運用擔架等之柵欄及 其鎖定機構。 Ο 【先前技術】 在醫院及看護設施等所使用的擔架之柵欄，係爲了防 止躺臥在擔架的床部上之病患從床部跌落，使從該床部之 側緣立起地設置在床部之側緣。 又，該柵欄，係在立起於擔架的床部之側緣之狀態下 ，當病患從擔架移乘至輪椅其他的椅子時，由於會妨礙其 動作，因此必須將柵欄從床部拆卸，或將柵欄朝擔架床的 ❹ 長邊方向折疊（專利文獻1 )，或以與床部之側緣平行之 方向作爲旋轉軸將柵欄旋轉，使柵欄垂下至較床面下方’ 藉以使其從床部之側緣退避。 在專利文獻1中，係以複數個支柱之上端部支撐構成 柵欄之橫框，而橫框與支柱之上端部係可轉動’藉由全部 的支柱倒下，使橫框就這樣水平狀態下降。接著’在將柵 欄保持於立起狀態之情況時，將可上下動地設置於橫框之 彈性支撐於止動器的下端部之銷構件，從上方插入於設置 在支柱的上端部之承受構件的嵌合孔內，而以支柱之承受 -5- 200938180 構件限制橫框之止動器，並使橫框與支柱不會相對轉動地 將該等卡止，而使支柱不會倒下。止動器，係藉由將設置 在對於橫框可水平移動地設置之雙止動器的下面之突起部 ，與設置在止動器的上面之突起部整合，限制使不會朝上 方移動，藉此，不會解除止動器與承受構件之相互限制狀 態。又，在作業者將雙止動器水平地移動之情況時，藉由 雙止動器的止動器之限制（突起部彼此之接觸）會脫落， 而止動器變爲可朝上方移動，因而，止動器之銷構件會從 υ 承受構件的嵌合孔脫離，且橫框對於支柱變爲可相對轉動 。藉此，支柱係可倒下，且藉由全部的支柱倒下，橫框則 水平地下降，並將柵欄折叠。 然而，在該專利文獻1所記載的擔架之柵欄，係藉由 將複數個支柱弄倒，使橫框下降，而將支柱折疊之類型， 因此折疊後之狀態下，也會以些許的高度殘留於擔架之側 緣，而在病患從擔架移乘之際，會造成妨礙。 另一方面，將柵欄繞著與擔架之側緣平行的旋轉軸旋 〇 轉，而在移乘時使從旋轉軸垂下之情況時，在病患從擔架 移乘至輪椅等之際，柵欄並不會造成妨礙。 第9圖及第10圖，係顯示旋轉之類型的柵欄之圖， 第9圖係顯示柵欄在擔架側緣立起而作爲柵欄之使用狀態 ’第1〇圖係顯示欲使柵欄旋轉之動作狀態。在擔架的床 部1之側緣，將其姿勢作爲水平而固定配置有旋轉軸支撐 部3。在柵欄2之右端部，將其長邊方向作爲水平而使從 柵欄2突出地設置有旋轉軸4，將該旋轉軸4插入於旋轉 -6- 200938180 軸支撐部3之水平孔，而將柵欄2可繞著水平軸旋轉地支 撐於旋轉軸支撐部3。在旋轉軸支撐部3，形成有凹部6, 而在柵欄2之右端部設置有突起5。接著，柵欄2,係該 旋轉軸支撐部3的相反側之端部（左端部），藉由同樣的 旋轉軸支撐部可繞著水平軸旋轉地被支撐。更且藉由壓縮 彈簧（未圖示），柵欄2係朝向右方被彈壓。 因此，如第9圖所示，在突起5嵌合於凹部6之狀態 φ 下，柵欄2係不會轉動，保持立起狀態。另一方面，將柵 欄2轉動使其退避之情況，係如第1〇圖所示，抗拒壓縮 彈簧的彈壓力，將柵欄2滑移至其另一端部（左端部）側 ，使突起5從凹部6脫離。在該狀態下，藉由將柵欄2朝 跟前轉動使從旋轉軸支撐部3朝下方垂下，柵欄2就會移 動至較床部1下方，而可移乘病患》 〔專利文獻1〕日本特許第3 029026號 〇 【發明內容】 〔發明所欲解決之問題〕 然而，在上述之第9圖及第10圖所示之以往技術中 ，由於只將柵欄2朝圖上之左方滑動，就可轉動柵欄2, 因此會有使病患或看護者誤動作之虞。 本發明係有鑑於如此之問題點而完成者，其目的係提 供一種不會誤操作柵欄之立起及退避而可確實地實行之醫 院搬運用擔架等之柵欄及其鎖定機構。 200938180 〔用以解決問題之手段〕 本發明之醫院搬運用擔架等之柵欄，係沿著床部的側 緣所設置之柵欄，其特徵爲：具有：於兩端部設有旋轉軸 之柵欄本體、及夾介上述旋轉軸可旋轉地支撐上述柵欄本 體之旋轉支撐部、及設置在上述柵欄本體之第1卡合部、 以及設置在上述旋轉支撐部且可與上述第1卡合部卡合之 第2卡合部，上述第2卡合部係具有孔或切口、及在從上 述孔或切口朝上述旋轉軸之長邊方向偏移之位置即對於旋 轉軸之中心以90度之中心角偏倚之位置之別的孔或切口 ，而上述第1卡合部係具有固定在上述柵欄本體之基部、 及對於上述基部可朝一方向往復移動地設置之桿、以及設 置於該桿且藉由上述桿之移動可進入上述孔或切口並可從 孔或切口脫離之銷構件，而在柵欄本體之立起狀態下上述 銷構件係進入上述孔或切口內，並使上述柵欄本體朝其旋 轉軸方向移動之後，藉由將上述柵欄本體旋轉，而使上述 銷構件進入上述別的孔或切口內，可將上述柵欄本體保持 於水平狀態。 又，具有：可朝與上述一方向交叉之方向往復移動地 設置並在第1位置阻止上述桿之從上述第2卡合部隔離的 方向之移動且在第2位置容許上述桿之從上述第2卡合部 隔離的方向之移動之卡止構件，爲較理想。更且，具有： 將上述銷構件朝向上述第2卡合部彈壓之彈性構件，爲較 理想。 更且，上述第1卡合部，係具有形成於上述柵欄本體 -8- 200938180 之卡止突起，且在上述卡止構件位於上述第1位置時，上 述卡止突起係將上述卡止構件卡止使其不會朝遠離上述旋 轉軸之方向移動，並限制使上述桿不會朝遠離上述旋轉軸 之方向移動，爲較理想。 本發明之醫院搬運用擔架等之柵欄之鎖定機構，係沿 著床部的側緣所設置，並具有：於兩端部設有旋轉軸之柵 欄本體、及夾介上述旋轉軸可旋轉地支撐上述柵欄本體之 0 旋轉支撐部，之醫院搬運用擔架等之柵欄之鎖定機構，其 特徵爲：具有：設置在上述柵欄本體之第1卡合部、及設 置在上述旋轉支撐部且可與上述第1卡合部卡合之第2卡 合部，上述第2卡合部係具有孔或切□、及在從上述孔或 切口朝上述旋轉軸之長邊方向偏移之位置即對於旋轉軸之 中心以90度之中心角偏倚之位置之別的孔或切口，而上 述第1卡合部係具有固定在上述柵欄本體之基部、及對於 上述基部可朝一方向往復移動地設置之桿、以及設置於該 〇 桿且藉由上述桿之移動可進入上述孔或切口並可從孔或切 口脫離之銷構件，而在柵欄本體之立起狀態下上述銷構件 係進入上述孔或切口內，並使上述柵欄本體朝其旋轉軸方 向移動之後，藉由將上述柵欄本體旋轉，而使上述銷構件 進入上述別的孔或切口內，可將上述柵欄本體保持於水平 狀態。 〔發明之效果〕 根據本發明，在柵欄本體之立起狀態下，第1卡合部 -9- 200938180 之銷構件會進入第2卡合部之孔或切口內，而第i卡合部 與第2卡合部會卡合，而相互地互相限制，因此柵欄本體 係在床部的側緣保持立起的狀態。另一方面，在柵欄本體 之水平狀態下，使柵欄本體朝其旋轉軸方向移動之後，藉 由將上述柵欄本體旋轉，而使上述銷構件進入上述別的孔 或切口內，可將上述柵欄本體保持於水平狀態。因此，爲 了使柵欄本體退避（收藏）於下方，在使柵欄本體旋轉之 際，可防止不小心將柵欄本體保持於水平狀態。柵欄本體 ，係一旦朝旋轉軸方向移動之後，藉由使其旋轉，而銷構 件會進入別的孔或切口而被保持於水平狀態。 又，將柵欄本體旋轉而使其退避於下方之情況時，將 卡止構件例如朝橫方向（與一方向交叉之方向）移動使其 位於第2位置時，桿就可往上方向（一方向）移動’且設 置在桿之銷構件會從上述孔或切口脫出而上述第1卡合部 與上述第2卡合部之卡合會脫落，而柵欄本體就可繞著旋 轉軸旋轉。藉此，可將柵欄本體朝下方弄倒’使其從床部 上退避。 更且，在本發明中，由於柵欄本體之旋轉’係藉由將 卡止構件朝橫方向移動之後’再將桿朝上方移動而變爲可 能，因此即使看護者或病患不小心碰觸到第1及第2卡合 部，只這樣柵欄本體也不會旋轉’可防止因誤操作造成的 柵欄本體之旋轉。 【實施方式】 • 10- 200938180 〔發明之實施形態〕 以下，參照所附圖面具體說明關於本發明之實施形態 。第1圖至第3圖係顯示備置有本發明的實施形態之柵欄 的擔架之立體圖。擔架10，係藉由升降裝置15可升降地 設置有水平之床部11，又，藉由配置在床部11的4個角 落部之車輪14,使可朝任意之方向移動。在該擔架10的 床部11之側緣，設置有柵欄20。該柵欄20，係具有：於 φ 兩端部設置有分別朝長邊方向延伸之旋轉軸22、23之柵 欄本體21、及設置在擔架10的床部11之側緣近旁，樞支 旋轉軸22、23而可旋轉地支撐柵欄本體21之旋轉支撐部 12、13。接著，在柵欄本體21之其中一方的端部之旋轉 軸22、旋轉支撐部12側，設置有由第1卡合部及第2卡 合部所構成之鎖定機構30。又，如第4圖所示，柵欄本體 21之另一方的端部之旋轉軸23，係被插入於設置在旋轉 支撐部13之與床部長邊方向平行的水平孔內，使旋轉軸 ❹ 23在旋轉支撐部13內可朝其軸方向（長邊方向）移動， 藉此，柵欄本體21係可朝床部11之長邊方向作些許滑動 。此外，如後述地其中一方的端部側之旋轉軸22也被插 入於旋轉支撐部12內的水平孔內，使在旋轉支撐部12內 可朝旋轉軸22之長邊方向移動。接著，在另一方的端部 側之旋轉軸23，外嵌有壓縮彈簧16’藉由該壓縮彈簧16 ，使柵欄本體21朝其中一方的端部側（旋轉支撐部12側 )被彈壓。 接著，在旋轉支撐部12側’設置有鎖定機構30 ’藉 -11 - 200938180 由該鎖定機構30，柵欄本體21，係可保持第1圖所示之 立起狀態、第2圖所示之水平狀態、第3圖所示之從旋轉 軸垂下之退避狀態。該第1圖所示之立起狀態’係具有： 作爲在醫院、醫療設施及看護設施等使用的病患搬運用之 擔架的防止病患跌落用之側邊柵欄之功能。又’第2圖所 示之水平狀態，係具有：作爲在診察台及搬運用擔架等中 ，使用於點滴輸液及處置等的上肢台之功能。更且’第3 圖所示之退避狀態，係在床部上的病患移乘於輪椅等之際 q 使柵欄不會造成妨礙地使其退避之樣式。如此的3種狀態 ，係藉由鎖定機構30，被固定於該狀態。鎖定機構30， 係具有：設置在柵欄本體21之第1卡合部31、及設置在 旋轉支撐部12之第2卡合部32。 第5圖及第6圖，係顯示柵欄處於立起狀態時之鎖定 機構30的構造之圖，（a)爲立體圖，（b)爲正面圖。 第7圖，係顯示將該鎖定機構30之一部分分解後的狀態 之立體圖。再者，第8圖，係顯示柵欄處於水平狀態時之 0 鎖定機構30的構造之圖，（a)爲立體圖，（b)爲俯視 圖。於設在柵欄本體21之其中一方的端部之安裝部24， 固定有第1卡合部31之基部41。在該基部41，外嵌有桿 42，桿42係可沿著基部41作些許上下動。接著，在該基 部41內，於其中心部於第5圖至第7圖中設置有朝上下 方向延伸之孔，並在該孔內配置有銷構件43。該基部41 的孔，係朝對於旋轉軸22的中心線垂直地交叉之方向延 伸，銷構件43也使其長邊方向對於旋轉軸22的中心線垂 -12- 200938180 直地可朝其長邊方向移動地被收納。在銷構件43之中途 ，形成有凸緣48,而在該銷構件43,於基部41之上述孔 內，外嵌有壓縮螺旋彈簧45。該壓縮螺旋彈簧45係介裝 於銷構件43的凸緣48與基部41之上述孔的上端部之間 ，將銷構件43朝從基部41朝向旋轉軸22側突出之方向 彈壓。該銷構件43，係被固定於桿42。例如，於桿42穿 設孔，且夾介該孔可將銷構件43藉由彈簧銷來固定。 0 在桿42 ’形成有凹部50，對於該凹部50，使卡止構 件44朝與旋轉軸22平行之方向嵌入。接著，卡止構件44 ，係在該凹部50內，可朝與旋轉軸22平行之方向往復移 動’卡止構件44的安裝部24側之部分，係成爲朝向安裝 部24延伸出之延出部46。又，在安裝部24於與其桿42 相對向之部分，形成有卡止突起47，如第5圖所示，當卡 止構件44位於離安裝部24最近之位置（第1位置）時， 延出部46之上端緣會被卡止於卡止突起47之下端緣，而 ❹ 可阻止卡止構件44及該卡止構件44嵌合的桿42朝遠離 旋轉軸22之方向（圖式例爲上方）移動。 另一方面，在旋轉支撐部12，設置有第2卡合部32 。該第2卡合部32，係具有固定在旋轉支撐部12之圓筒 狀的圓筒部51。在該圓筒部51，於其上端部的寬度方向 之中央，形成有可插入銷構件43之孔52(參照第8圖） ’通過該孔52之圓周線上，係成爲銷構件43的前端部滑 動之滑動部53。此外，在銷構件43之前端部，係塗覆有 滑動阻力變低之物質（例如’鐵氟龍（註冊商標）），但 -13- 200938180 爲了防止因銷構件43的滑動造成圓筒部51之局部的磨損 之溝槽的形成，滑動部53係形成較其他的部分些許隆起 。又，在圓筒部51’於對於孔52以對於旋轉軸22的中心 之中心角旋轉至90度跟前側之位置，即圓筒部51之寬度 方向的柵欄本體21側之部分，形成有切口 54(參照第5 圖、第6圖）。 其次，說明關於如上述所構成之本實施形態的擔架等 之柵欄的動作。如第5圖所示，在柵欄本體21立起之狀 態下，卡止構件44係位於最靠近柵欄本體21的安裝部24 側之位置（第1位置），且卡止構件44係將其延出部46 卡止於形成在安裝部24之卡止突起47’而無法朝從旋轉 軸22隔離之方向移動。因而’桿42也無法朝從旋轉軸22 隔離之方向移動。因此，設置在桿42之銷構件43，係被 插入於第2卡合部32的圓筒部51之上端孔52(第8圖） 內。藉此，藉由將柵欄本體21側之銷構件43插入於旋轉 支撐部12側的圓筒部51之孔52內，栅欄本體21係保持 立起狀態。該銷構件43往孔52內之插入狀態，係只要不 經桿42之移動及卡止構件44之移動就不會脫落，因此被 施以雙層鎖定，可確實地防止因誤操作，鎖定狀態被解除 而柵欄本體就旋轉之事情。 又，由於壓縮螺旋彈簧45將輯構件43朝向旋轉軸22 之中心線側彈壓，因此在使柵欄本體21立起，而形成第1 圖所示的立起狀態之際，銷構件43之前端會滑動於滑動 部53上而接近孔52，更且在與孔52整合時，藉由壓縮螺 -14- 200938180 旋彈簧45之彈壓力將銷構件43確實地插入孔52內。此 時，操作者不需要將桿42朝遠離旋轉軸22之方向拿起。 因此，只進行使柵欄本體21立起之動作，柵欄本體21係 可確實地被保持於立起狀態。 另一方面，在欲將柵欄本體21作爲第3圖所示的退 避狀態之情況時，如第6圖所示，使卡止構件44朝遠離 安裝部24之方向移動。藉此，由於卡止構件44之延出部 φ 46會藉由卡止突起47從卡止狀態脫落，因此使桿42對於 基部41相對地朝上方移動。藉此，設置在桿42之銷構件 43會從圓筒部51之孔52內脫離，而基部41對於圓筒部 51，變成可相對地移動。之後，只要將桿42放掉，而旋 轉柵欄本體21即可。因此，固定有基部41之柵欄本體21 ，對於固定有圓筒部51之旋轉支撐部12變成可旋轉，使 柵欄本體21旋轉，而可作成第3圖所示的退避狀態。 另一方面，欲將柵欄本體21固定成水平狀態而使發 φ 揮作爲上肢台的功能之情況，係使卡止構件44移動至第2 位置側，而解除卡止構件44的延出部46之藉由卡止突起 47的卡止狀態。接著’將桿42朝上方拿起，使銷構件43 從孔52脫離，而解除藉由旋轉支撐部12之柵欄本體21 的限制。其次，如第8圖所示，將柵欄本體21朝遠離旋 轉支撐部1 2之方向，即朝另一端部側之旋轉支撐部1 3側 按壓。由於柵欄本體21本身’係藉由壓縮螺旋彈簧16, 被朝向旋轉支撐部12側彈壓’因此藉由抗拒該彈壓力而 按壓柵欄本體21’如第8圖所示，基部41與圓筒部51之 -15- 200938180 相對的關係，則變成朝旋轉軸22之長邊方向位移，且基 部41內的銷構件43之前端，則變成滑動於圓筒部51中 的柵欄本體21側之部分。因此，當柵欄本體21旋轉來到 水平狀態時，銷構件43係藉由壓縮螺旋彈簧45之彈壓力 而進入圓筒部51之切口 54內。在該狀態下，由於桿42 及卡止構件44之移動被阻止，因此不會因誤操作變成鎖 定解除狀態，柵欄本體21係可確實地保持於水平狀態。 該情況也是，鎖定之解除，係首先使卡止構件44朝 從安裝部24隔離之方向移動，之後，只要將桿42朝遠離 旋轉軸22之方向移動即可。 此外，由上述之說明明顯地，在將柵欄本體21從立 起狀態移至退避狀態之際，只將卡止構件44移動，並將 桿42朝上方移動而使銷構件43從孔52脫離，就可使柵 欄本體21 —下子旋轉至下端部之退避狀態。即，不必使 柵欄本體21在水平狀態停止，只將柵欄本體21旋轉，就 可使其移動至下端部之退避狀態。 又，欲將柵欄本體2 1固定於水平狀態之情況時，係 在使卡止構件44朝遠離安裝部24之方向移動，並使桿42 朝上方移動之狀態下，只將柵欄本體朝向另一端部側按壓 ，之後，只要將柵欄本體21旋轉，即可極爲簡單地將柵 欄設置於水平狀態，並使發揮作爲上肢台之功能。 此外，上述的實施形態中之壓縮螺旋彈簧45,係並不 一定需要。但是，藉由設置該壓縮螺旋彈簧45，可將銷構 件43確實地插入於孔52或切口 54內。 -16- 200938180 此外，附有上述鎖定機構之柵欄，係並不一定需要設 置在床部之兩側緣’亦可只設置在專門爲了病患移乘利用 之側緣側。又，也並不一定需要將柵欄本身設置在床部之 兩側緣。 又，在上述實施形態中，第2卡合部，係在圓筒部51 的寬度方向之中央具有孔52，且在圓筒部51的安裝部24 側之位置具有切口 54，但亦可在圓筒部51的安裝部24之 Q 相反側的位置設置切口來代替孔52，又，亦可設置孔來代 替切口 54。 【圖式簡單說明】 第1圖，係顯示備置有本發明的實施形態之柵欄的擔 架之立體圖，且係顯示柵欄立起的狀態之立體圖。 第2圖，係顯示備置有本發明的實施形態之柵欄的擔 架之立體圖，且係顯示柵欄處於水平狀態的狀態之立體圖 ❹ 第3圖，係顯示備置有本發明的實施形態之柵欄的擔 架之立體圖，且係顯示柵欄退避於下方的狀態之立體圖° 第4圖，係同上地顯示柵欄的相反側之端部之立體® 〇 第5圖，係顯示柵欄處於立起狀態時之鎖定機構30 的構造（鎖定狀態）之圖，（a)爲立體圖，（b)爲正面 圖。 第6圖，係顯示柵欄處於立起狀態時之鎖定機構30 -17- 200938180 的構造（鎖定解除狀態）之圖，（a)爲立體圖，（b)爲 正面圖。 第7圖’係顯示將該鎖定機構30之一部分分解後的 狀態之立體圖。 第8圖，係顯示柵欄處於水平狀態時之鎖定機構30 的構造之圖’ （a)爲立體圖，（b)爲俯視圖。 胃9圖’係顯示以往的鎖定機構（鎖定狀態）之立體 圖。 第10圖，係顯示以往的鎖定機構（鎖定解除狀態） 之立體圖。 【主要元件符號說明】 1 :床部 2 :柵欄 3 :支撐部 4 :旋轉軸 5 :突起 6 :凹部 10 :擔架 1 1 :床部 12、13 :旋轉支撐部 14 :車輪 15 :升降裝置 1 6 :壓縮螺旋彈簧 -18 - 200938180 ❹ :柵欄 :柵欄本體 、23 :旋轉軸 :安裝部 =鎖定機構 :第1卡合部 :第2卡合部 :基部 :桿 :銷構件 :卡止構件 =螺旋彈簧 :延出部 :卡止突起 =凸緣 :凹部 :圓筒部 :孔 :滑動部 54 :切口。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 A fence and a locking mechanism for a hospital carrying stretcher or the like that can rotate the fence to be retracted from the lower surface of the bed. Ο [Prior Art] The fence of the stretcher used in hospitals and nursing facilities is designed to prevent patients lying on the bed of the stretcher from falling from the bed and standing from the side edge of the bed. The side edge of the bed. Further, in the state in which the fence is raised on the side edge of the bed portion of the stretcher, when the patient moves from the stretcher to the other chair of the wheelchair, the fence is prevented from being moved, so the fence must be detached from the bed. Or folding the fence toward the long side of the truss bed (Patent Document 1), or rotating the fence as a rotation axis in a direction parallel to the side edge of the bed, and hanging the fence down to the lower side of the bed. The side edge of the department is retreating. In Patent Document 1, the horizontal frame constituting the fence is supported by the upper end portions of the plurality of pillars, and the upper end portions of the horizontal frame and the pillars are rotatable, and all the pillars are fallen down, so that the horizontal frame is lowered in such a horizontal state. Then, when the fence is held in the upright state, the pin member that is elastically supported on the lower end portion of the stopper that is elastically supported on the horizontal frame is inserted into the receiving member provided at the upper end portion of the pillar from above. In the fitting hole, the retainer of the cross frame is restrained by the support of the support -5-200938180, and the horizontal frame and the support are locked without relative rotation, so that the support does not fall. The stopper is integrated with the protrusion provided on the upper surface of the stopper to be disposed on the lower surface of the double stopper provided to be horizontally movable to the horizontal frame, and is restricted from moving upward. Thereby, the mutually restricted state of the stopper and the receiving member is not released. Further, when the operator moves the double stopper horizontally, the stopper of the double stopper (the contact portions are in contact with each other) is detached, and the stopper becomes movable upward. Thus, the pin member of the stopper is detached from the fitting hole of the 承受 receiving member, and the lateral frame becomes relatively rotatable with respect to the struts. Thereby, the pillars can be fallen down, and by the collapse of all the pillars, the horizontal frame is lowered horizontally and the fence is folded. However, the fence of the stretcher described in Patent Document 1 is a type in which the pillars are folded by the plurality of pillars, and the pillars are folded, so that the pillars are folded at a slight height. On the side edge of the stretcher, it can be a hindrance when the patient moves from the stretcher. On the other hand, when the fence is rotated around the rotation axis parallel to the side edge of the stretcher and is suspended from the rotation axis during the transfer, when the patient moves from the stretcher to the wheelchair, etc. Will not cause obstacles. Fig. 9 and Fig. 10 are diagrams showing the type of the fence of the rotation type, and Fig. 9 shows the state in which the fence is raised on the side edge of the stretcher and used as a fence. The first figure shows the action state for the fence to be rotated. . On the side edge of the bed portion 1 of the stretcher, the rotating shaft support portion 3 is fixedly disposed in a horizontal position. At the right end of the fence 2, the rotation axis 4 is provided so as to protrude horizontally from the fence 2, and the rotation shaft 4 is inserted into the horizontal hole of the rotation support -6-200938180 shaft support portion 3, and the fence is placed 2 is rotatably supported on the rotating shaft support portion 3 about a horizontal axis. A concave portion 6 is formed in the rotating shaft support portion 3, and a projection 5 is provided at the right end portion of the fence 2. Next, the fence 2, which is the end portion (left end portion) on the opposite side of the rotary shaft support portion 3, is rotatably supported around the horizontal axis by the same rotary shaft support portion. Further, by the compression spring (not shown), the fence 2 is biased toward the right. Therefore, as shown in Fig. 9, in a state φ in which the projection 5 is fitted into the recess 6, the fence 2 does not rotate and is kept in an upright state. On the other hand, when the fence 2 is rotated to be retracted, as shown in FIG. 1 , the elastic pressure of the compression spring is resisted, and the fence 2 is slid to the other end (left end) side, so that the protrusion 5 is The recess 6 is detached. In this state, by lowering the fence 2 toward the front to hang down from the rotating shaft support portion 3, the fence 2 is moved below the bed portion 1, and the patient can be moved. [Patent Document 1] Japanese Patent Japanese Patent No. 3,029,026, [Description of the Invention] However, in the prior art shown in the above-mentioned FIGS. 9 and 10, since only the fence 2 is slid to the left of the figure, The fence 2 can be turned, so there is a risk of the patient or the caregiver malfunctioning. The present invention has been made in view of such a problem, and an object thereof is to provide a fence and a locking mechanism for a hospital carrying stretcher that can be reliably executed without erroneously operating the fence. 200938180 [Means for Solving the Problem] The fence for a hospital carrying stretcher or the like according to the present invention is a fence provided along the side edge of the bed, and is characterized in that it has a fence body having a rotating shaft at both end portions. And a rotation support portion that rotatably supports the fence body, a first engagement portion provided on the fence body, and a rotation support portion that is engageable with the first engagement portion In the second engaging portion, the second engaging portion has a hole or a slit, and a position offset from the hole or the slit toward the longitudinal direction of the rotating shaft, that is, a central angle of 90 degrees with respect to the center of the rotating shaft a hole or a slit that is biased at a position, wherein the first engaging portion has a base fixed to the base of the fence body, and a rod that is reciprocally movable in one direction with respect to the base portion, and is disposed on the rod and is provided by the rod The movement of the rod can enter the hole or the slit and can be detached from the hole or the slit, and the pin member enters the hole or the slit in the upright state of the fence body, and the fence is After the movement towards the rotary axis direction by the rotation of the body above the fence, so that the pin member into said hole or another incision, the above-described barrier body may be held in the horizontal state. Further, the first rod is reciprocally movable in a direction intersecting the one direction, and the rod is prevented from moving in a direction separating from the second engaging portion at a first position, and the rod is allowed to be in the second position. It is preferable that the locking member that moves in the direction in which the engaging portion is isolated is preferable. Furthermore, it is preferable to have an elastic member that biases the pin member toward the second engaging portion. Further, the first engaging portion has a locking projection formed on the fence main body -8-200938180, and when the locking member is located at the first position, the locking projection is configured to lock the locking member It is preferable that it does not move in a direction away from the above-mentioned rotation axis and restricts the movement of the rod from the direction away from the rotation axis. A lock mechanism for a fence such as a hospital transport stretcher according to the present invention is provided along a side edge of the bed portion, and has a fence body having a rotating shaft at both end portions, and rotatably supporting the rotating shaft a lock mechanism for a fence such as a hospital transport stretcher, which is provided with a 0-rotation support portion of the fence body, and includes: a first engagement portion provided in the fence body; and a rotation support portion The second engaging portion that the first engaging portion is engaged with, the second engaging portion has a hole or a cut, and a position offset from the hole or the slit toward the longitudinal direction of the rotating shaft, that is, the rotating shaft The center of the first engagement portion has a hole fixed to the base of the fence body and a rod that is reciprocally movable in one direction with respect to the base portion, and a hole or a slit that is biased at a center angle of 90 degrees, and a pin member disposed on the mast and movable into the hole or slit by the movement of the rod and detachable from the hole or the slit, and the pin member enters the hole or the cut in the upright state of the fence body Inside, and above the fence main body by the main body is rotated after the above-described barrier moves toward its rotational axis, so that the pin member into said hole or another incision, the above-described barrier body may be held in the horizontal state. [Effects of the Invention] According to the present invention, in the state in which the fence body is raised, the pin member of the first engaging portion -9-200938180 enters the hole or the slit of the second engaging portion, and the i-th engaging portion is Since the second engaging portions are engaged and mutually restrained from each other, the fence system is kept in a raised state at the side edges of the bed portion. On the other hand, in the horizontal state of the fence body, after the fence body is moved in the direction of the rotation axis thereof, the fence member can be inserted into the other hole or the slit by rotating the fence body, and the fence body can be Stay in a horizontal state. Therefore, in order to retract (storage) the fence body, the fence body can be prevented from being inadvertently held in a horizontal state while the fence body is rotated. The fence body, once moved in the direction of the rotation axis, is rotated, and the pin member is held in another hole or slit and held in a horizontal state. Further, when the fence body is rotated to be retracted from the lower side, when the locking member is moved in the lateral direction (the direction intersecting with one direction) to be in the second position, the lever can be moved upward (one direction). The movement of the pin member provided on the rod is released from the hole or the slit, and the engagement between the first engagement portion and the second engagement portion is released, and the fence body is rotatable about the rotation axis. Thereby, the fence body can be turned down to make it retreat from the bed. Furthermore, in the present invention, since the rotation of the fence body 'by moving the locking member in the lateral direction' and then moving the rod upward, it becomes possible even if the caregiver or the patient accidentally touches In the first and second engaging portions, only the fence body does not rotate "to prevent the rotation of the fence body due to an erroneous operation. [Embodiment] • 10-200938180 [Embodiment of the Invention] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. Fig. 1 to Fig. 3 are perspective views showing a stretcher provided with a fence according to an embodiment of the present invention. The stretcher 10 is provided with a horizontal bed portion 11 that can be raised and lowered by the lifting device 15, and is moved in an arbitrary direction by the wheels 14 disposed at the four corner portions of the bed portion 11. A fence 20 is provided on the side edge of the bed portion 11 of the stretcher 10. The fence 20 has a fence body 21 provided with rotation shafts 22 and 23 extending in the longitudinal direction at both end portions of φ, and a side edge disposed on the side of the bed portion 11 of the stretcher 10, and the pivot shaft 22 is pivoted. And 23, the rotation support portions 12, 13 of the fence body 21 are rotatably supported. Next, a lock mechanism 30 composed of a first engagement portion and a second engagement portion is provided on the rotation shaft 22 and the rotation support portion 12 side of one of the end portions of the fence body 21. Further, as shown in Fig. 4, the rotation shaft 23 of the other end portion of the fence main body 21 is inserted into a horizontal hole provided in the direction of the side of the bed of the rotation support portion 13, so that the rotation axis 23 The rotation support portion 13 is movable in the axial direction (longitudinal direction), whereby the fence body 21 can slide slightly toward the longitudinal direction of the bed portion 11. Further, the rotation shaft 22 on the end side of one of the later-described ones is inserted into the horizontal hole in the rotation support portion 12 so as to be movable in the longitudinal direction of the rotation shaft 22 in the rotation support portion 12. Then, the compression spring 16 is externally fitted to the rotation shaft 23 on the other end side, and the compression spring 16 is used to bias the fence body 21 toward the one end side (the rotation support portion 12 side). Next, the lock mechanism 30' is provided on the side of the rotation support portion 12'. By the lock mechanism 30, the fence body 21 can maintain the standing state shown in Fig. 1 and the level shown in Fig. 2 The state and the retracted state from the rotation axis shown in Fig. 3. The erected state shown in Fig. 1 has a function as a side fence for preventing a patient from falling down as a stretcher for patient transport used in hospitals, medical facilities, and nursing facilities. In the horizontal state shown in Fig. 2, it is a function of an upper limb table used for drip infusion and disposal in a medical examination table, a transport stretcher, and the like. Furthermore, the retracted state shown in Fig. 3 is a pattern in which the patient on the bed is transferred to a wheelchair or the like. q The fence is prevented from being obstructed. These three states are fixed in this state by the lock mechanism 30. The lock mechanism 30 has a first engagement portion 31 provided in the fence body 21 and a second engagement portion 32 provided in the rotation support portion 12. Fig. 5 and Fig. 6 are views showing the structure of the lock mechanism 30 when the fence is in the upright state, (a) is a perspective view, and (b) is a front view. Fig. 7 is a perspective view showing a state in which one portion of the lock mechanism 30 is disassembled. Further, Fig. 8 is a view showing the structure of the lock mechanism 30 when the fence is in a horizontal state, (a) is a perspective view, and (b) is a plan view. The base portion 41 of the first engaging portion 31 is fixed to the mounting portion 24 provided at one of the end portions of the fence body 21. At the base portion 41, a rod 42 is externally fitted, and the rod 42 is slightly movable up and down along the base portion 41. Next, in the base portion 41, a hole extending in the up-and-down direction is provided in the center portion in Figs. 5 to 7, and a pin member 43 is disposed in the hole. The hole of the base portion 41 extends in a direction perpendicularly intersecting the center line of the rotating shaft 22, and the pin member 43 also has its longitudinal direction perpendicular to the center line of the rotating shaft 22 -12-200938180 straight toward the long side thereof. The direction is moved and stored. A flange 48 is formed in the middle of the pin member 43, and a compression coil spring 45 is externally fitted to the pin member 43 in the hole of the base portion 41. The compression coil spring 45 is interposed between the flange 48 of the pin member 43 and the upper end portion of the hole of the base portion 41, and biases the pin member 43 in a direction protruding from the base portion 41 toward the rotation shaft 22 side. The pin member 43 is fixed to the rod 42. For example, the rod 42 is bored and the pin member is used to secure the pin member 43 by a spring pin. 0 A recess 50 is formed in the rod 42', and the locking member 44 is fitted in a direction parallel to the rotating shaft 22 with respect to the recess 50. Then, the locking member 44 is inserted into the recess 50 so as to be reciprocally movable in a direction parallel to the rotating shaft 22, and the portion of the locking member 44 on the side of the mounting portion 24 is formed as an extension extending toward the mounting portion 24. 46. Further, in the mounting portion 24, a locking projection 47 is formed at a portion facing the rod 42. As shown in Fig. 5, when the locking member 44 is located closest to the mounting portion 24 (first position), The upper end edge of the outlet portion 46 is locked to the lower end edge of the locking projection 47, and the lever 42 for engaging the locking member 44 and the locking member 44 is prevented from moving away from the rotation shaft 22 (illustration is Above) move. On the other hand, the second engagement portion 32 is provided in the rotation support portion 12. The second engaging portion 32 has a cylindrical cylindrical portion 51 fixed to the rotation support portion 12. In the cylindrical portion 51, a hole 52 into which the pin member 43 can be inserted is formed at the center in the width direction of the upper end portion (see Fig. 8). The front end portion of the pin member 43 is formed on the circumferential line passing through the hole 52. Sliding sliding portion 53. Further, at the front end portion of the pin member 43, a substance having a low sliding resistance (for example, 'Teflon (registered trademark)) is applied, but -13 to 200938180, in order to prevent the cylindrical portion 51 from being caused by the sliding of the pin member 43 The partial wear of the grooves is formed, and the sliding portion 53 is formed to be slightly raised from the other portions. Further, the cylindrical portion 51' is formed with a slit at a position on the side of the fence body 21 in the width direction of the cylindrical portion 51 at a position rotated toward the front side of the hole 52 with respect to the center of the rotation shaft 22, that is, the width direction of the cylindrical portion 51. 54 (Refer to Figure 5 and Figure 6). Next, the operation of the fence such as the stretcher of the present embodiment configured as described above will be described. As shown in Fig. 5, in a state in which the fence body 21 is erected, the locking member 44 is located closest to the mounting portion 24 side of the fence body 21 (first position), and the locking member 44 is extended. The outlet portion 46 is locked to the locking projection 47' formed in the mounting portion 24 and is not movable in the direction of being isolated from the rotation shaft 22. Therefore, the rod 42 cannot move in the direction of being isolated from the rotating shaft 22. Therefore, the pin member 43 provided on the rod 42 is inserted into the upper end hole 52 (Fig. 8) of the cylindrical portion 51 of the second engaging portion 32. By this, the pin member 43 on the side of the fence main body 21 is inserted into the hole 52 of the cylindrical portion 51 on the side of the rotation support portion 12, and the fence body 21 is kept in an upright state. The insertion state of the pin member 43 into the hole 52 is such that it does not fall off without the movement of the rod 42 and the movement of the locking member 44, so that double-layer locking is applied, and the locking state can be surely prevented from being erroneously operated. The thing that the fence body rotates is released. Further, since the compression coil spring 45 biases the album member 43 toward the center line side of the rotation shaft 22, the front end of the pin member 43 is formed when the fence body 21 is raised to form the standing state shown in Fig. 1 . The slider member 53 is slid on the sliding portion 53 to approach the hole 52, and when integrated with the hole 52, the pin member 43 is surely inserted into the hole 52 by the elastic pressure of the compression screw-14-200938180. At this time, the operator does not need to pick up the lever 42 in a direction away from the rotary shaft 22. Therefore, only the operation of raising the fence body 21 is performed, and the fence body 21 can be surely held in the upright state. On the other hand, when the fence main body 21 is to be in the retracted state shown in Fig. 3, as shown in Fig. 6, the locking member 44 is moved in the direction away from the mounting portion 24. Thereby, since the extending portion φ 46 of the locking member 44 is detached from the locked state by the locking projection 47, the rod 42 is relatively moved upward relative to the base portion 41. Thereby, the pin member 43 provided on the rod 42 is detached from the hole 52 of the cylindrical portion 51, and the base portion 41 is relatively movable with respect to the cylindrical portion 51. Thereafter, the rod body 42 is rotated and the fence body 21 is rotated. Therefore, the fence main body 21 to which the base portion 41 is fixed is rotatable with respect to the rotation support portion 12 to which the cylindrical portion 51 is fixed, and the fence main body 21 is rotated, and the retracted state shown in Fig. 3 can be created. On the other hand, when the fence main body 21 is to be fixed in a horizontal state and the wig is used as the function of the upper limb rest, the locking member 44 is moved to the second position side, and the extension portion 46 of the locking member 44 is released. This is achieved by the locking state of the locking projection 47. Next, the rod 42 is lifted upward to disengage the pin member 43 from the hole 52, and the restriction of the fence body 21 by the rotation of the support portion 12 is released. Next, as shown in Fig. 8, the fence body 21 is pressed away from the rotation support portion 12, that is, toward the rotation support portion 13 side on the other end side. Since the fence body 21 itself is pressed by the compression coil spring 16 toward the rotation support portion 12, the fence body 21' is pressed by resisting the spring pressure, as shown in Fig. 8, the base portion 41 and the cylindrical portion 51. -15-200938180 The relative relationship is shifted toward the longitudinal direction of the rotary shaft 22, and the front end of the pin member 43 in the base portion 41 is slid to the portion of the cylindrical portion 51 on the side of the fence body 21. Therefore, when the fence body 21 is rotated to the horizontal state, the pin member 43 enters the slit 54 of the cylindrical portion 51 by the elastic pressure of the compression coil spring 45. In this state, since the movement of the rod 42 and the locking member 44 is prevented, the lock release state is not caused by the erroneous operation, and the fence body 21 can be surely held in the horizontal state. In this case as well, the unlocking of the lock is performed by first moving the locking member 44 in a direction separating from the mounting portion 24, and then moving the rod 42 in a direction away from the rotating shaft 22. Further, as apparent from the above description, when the fence main body 21 is moved from the standing state to the retracted state, only the locking member 44 is moved, and the lever 42 is moved upward to disengage the pin member 43 from the hole 52. The fence body 21 can be rotated to the retracted state of the lower end portion. That is, it is not necessary to stop the fence body 21 in the horizontal state, and only the fence body 21 is rotated, so that it can be moved to the retracted state of the lower end portion. Further, when the fence main body 2 1 is to be fixed in the horizontal state, the locking member 44 is moved in the direction away from the mounting portion 24, and the rod 42 is moved upward, and only the fence body is directed to the other end. After the side portion is pressed, the fence body 21 can be rotated in a very simple manner, and the fence can be installed in a horizontal state with a very simple function. Further, the compression coil spring 45 in the above embodiment is not necessarily required. However, by providing the compression coil spring 45, the pin member 43 can be surely inserted into the hole 52 or the slit 54. Further, the fence with the above-described locking mechanism does not necessarily need to be provided on both side edges of the bed portion, and may be provided only on the side edge side exclusively for patient transfer. Moreover, it is not necessary to provide the fence itself on both sides of the bed. Further, in the above-described embodiment, the second engaging portion has a hole 52 at the center in the width direction of the cylindrical portion 51, and has a slit 54 at a position on the side of the mounting portion 24 of the cylindrical portion 51. Instead of the hole 52, a slit is provided in the position on the opposite side of the mounting portion 24 of the cylindrical portion 51, and a hole may be provided instead of the slit 54. [Brief Description of the Drawings] Fig. 1 is a perspective view showing a state in which a fence of a fence according to an embodiment of the present invention is placed, and a state in which a fence is raised. Fig. 2 is a perspective view showing a stretcher in which a fence according to an embodiment of the present invention is placed, and is a perspective view showing a state in which the fence is horizontal. Fig. 3 is a view showing a stretcher provided with a fence according to an embodiment of the present invention. The perspective view shows a perspective view of the state in which the fence is retracted from the lower side. FIG. 4 is a perspective view showing the end of the opposite side of the fence. FIG. 5 is a view showing the locking mechanism 30 when the fence is in the upright state. A diagram of the structure (locked state), (a) is a perspective view, and (b) is a front view. Fig. 6 is a view showing the structure (lock release state) of the lock mechanism 30 -17- 200938180 when the fence is in the upright state, (a) is a perspective view, and (b) is a front view. Fig. 7 is a perspective view showing a state in which one portion of the lock mechanism 30 is disassembled. Fig. 8 is a view showing the structure of the lock mechanism 30 when the fence is in a horizontal state' (a) is a perspective view, and (b) is a plan view. The stomach 9 diagram shows a perspective view of a conventional locking mechanism (locked state). Fig. 10 is a perspective view showing a conventional lock mechanism (lock release state). [Description of main components] 1 : Bed 2 : Fence 3 : Support 4 : Rotary shaft 5 : Protrusion 6 : Recess 10 : Stretcher 1 1 : Bed 12, 13 : Rotary support 14 : Wheel 15 : Lifting device 1 6 : Compression coil spring -18 - 200938180 ❹ : Fence: fence body, 23 : Rotary shaft: Mounting part = Locking mechanism: 1st engaging part: 2nd engaging part: Base part: Rod: Pin member: Clamping member = Coil spring: extension: locking projection = flange: recess: cylindrical portion: hole: sliding portion 54: slit