M306859 八、新型說明： 【新型所屬之技術領域】 本創作係有關於一種護理載具之椅背調整結構改良，特別係指一種結構簡 早、谷易彳呆作且成本低廉之調整結構。 •【先前技術】 按，一般所稱之護理載具泛指一些專供行動不方便之病人所使用之椅具戋M306859 VIII. New Description: [New Technology Field] This creation department is about the improvement of the backrest adjustment structure of a nursing vehicle, especially the adjustment structure with simple structure, easy to stay and low cost. • [Prior Art] Press, generally referred to as a care vehicle, refers to some chairs designed for patients with inconvenient mobility.
推車（如洗澡椅、懸椅或代步車...#)，錢了方便使用者平顧常會將其相 背設計成可後傾狀態，如專利公告第M2 8 9 3 3 6號「躺式便器椅結構」專 利案（以下_習用品），其主要包括—主架體，包括有兩對稱之崎及連接網 架之兩對稱絲’卿_端並軸有扶手部；—餘，為―⑽結構體，其 兩側下方與《麟額設歧職有-赌部，对雜設處設有供背架後 仰頂撐用支撑構件；-觸裝置，係設置在主架體之兩側，該伸置兩端並 斜向連接主架體之腳架及雜，且伸縮裝置係透過橫向關在雜之連桿相互 連結者。雜之後仰角度時，必須透過先行旋緊—側伸縮裝置之螺固元件 以推抵彈性定她麟穿孔’再施以單手按壓另__縮裝置突露之彈性定位 輔、乘坐者後躺之力里（或護理人員將背架後拉），才能讓背架達到後仰 之功效。由此可知，該㈣品在主雜之兩鮮設置有_伽錢之設計，不 僅在製造成本上會大幅提高，在調整餘後仰歧之操作上也會因為必須經過 兩道手續而顯的不夠實用者。 有鑑於上述問題，本創作人認為有必要予以改進，於是投注心力加以㈣ 創5又’㈣夕-人測成及改良修正後’終乃研發出本創作之「護理載具之椅背 整結構改良」，期使該類產品在椅背調整上的實用效益大幅提高者。 5 M306859 【新型内容】 本創作之主要目的在於提供一種護理載具之椅背調整結構改良，其椅肯傾 仰角度之調整裝置零件數量有效減少，且其使職作之程序亦峨簡化，具有 操作谷易、降低製造成本之功效增進者。 .本創作之另—目的在於提供—種護理載具之椅背調整結構改良，藉由其設 置於兩後輪間之防傾裝置可在射傾斜較大角度時達到有效支撐護理載具改變 後之重心，以避免乘坐者跌落護理載具而碰傷頭部之功效。 本創作解決先前技術較狀技術手段，乃在於·-種「護理載具之椅 月周正、。構改良」，其碰裝置係組設於護理載具之背架及兩後輪間預設處，主 要匕括外套同、一内套官及定位元件；該外套筒一端形成開放端以供内套管 對應套人，而歡位元制可？貫外錢助好，藉_套管於外套筒中作 雜滑移’並配合統元狀嵌設定位與鮮脫離，可㈣改魏調整裝置之 伸縮長度，進而達到調整背架之傾仰狀態者。 有關本創作「4理載具之射調整結構改良」±述目的、姐及特點，將佐 以如下具體實施例之圖式詳細說明，俾對本創作進—步瞭解。 【實施方式】 請參閱第-、二圖，係本創作護理載具之椅t調整結構改良之第—實施例， 其調魏置⑵係組設於護理魅⑴之雜（i丄）及兩後輪 間之連桿⑴）中段’主要包括—外套筒（21)、一_(22)及定位 元件（23);其中：該魏（11)之下端與護理載具⑴之後立桿（ 係形成可爐之麟狀態，且轉（丨i)之水平射觀設有二樞板（ 1)，其樞板（111)則可供-_ (i i 2)由側邊穿貫者；該外套筒 M306859 1)係上端形成開放端以供内套管（2 2)對應套入之中空筒體，其下端具有 一樞套管（211)可套設於兩後輪（工2)間之連桿（工3)中段，且該外 套同（21)之周壁等距設有複數個定位孔（2丄2)者；該内套管（2 2 ) 係對應由外套筒（21)上端套人之管體，其上端係藉由上述樞板（丄丄” 及銷桿（112 y而樞接於背架（、丄）之水平部中段，於該内套管（2 2) 周土叹有牙孔（2 21)者；該定位疋件（2 3)係為一後端設有彈性體 31)而具伸縮特性之凸粒，其係由内套管（2 2)之穿孔q 2 ^穿出而 響對應礙設於外套筒（2 1 ) >索你;^ r 〇，。、 wn )之疋位孔（2 1 2 ) +，藉以達到内套f ( 2 2 ) 與外套筒（2 1 )形成定位連結之狀態。 .， ./整椅背傾斜之操作實施時〔請-併參閱第二、三、四圖〕，使用者只需按 .下定位兀件（2 3 )，使其内縮而脫離外套筒（2丄）之定位孔（2⑶時， 則可形成鬆掣狀態而令内套管（22)可自由的於外套筒⑴）中作線性滑 多俾控制_整I置（2 )之伸縮長度，藉由改變調整裝置（2 )之長度可 進-步調整背架（；L i )之傾仰狀 春 〜以整裝置⑵之長度較長時背架（1 則呈現較為直立陳態〔如第三_示〕，反之，當碰裝置⑵之長度 較短時背架（i i )則呈贿為傾斜的狀態〔如第所 = 的傾斜角度確定後則可放_以件 — 套筒C 〜 I、彈力恢復而嵌設於最近的外 套问（21)之定位孔（212)中，進 、' 有效支撐且固定背架（工丄）者。 °正、 形成疋位狀態以 請參閱第五、六圖本創作 括-操作裝置⑶，藉由拉提該^=調整裝置⑵更可進一步包 之定位與觀_姆置^蝴跑元件（⑶ )主要包括一頭端（3 1)、-拉桿（3 2) 7 M306859 及一作用板（3 3);其中·· 該頭端（3 1 )，係組設於内套管（2 2)頂端，其上半段形成一圓頂部（3 1 1 )，圓頂部（311)下部則為一可對應套入内套管（2 2)頂端之套設段 (31 2 )，此套設段（312)中段開設一長孔（312 1)以供内套管（2 2 )·上端之銷桿（1 1 2 )穿設，另於套設段（3 1 2 )底端中央預設一與長 孔（3 1 2 1 )相通之下通孔（3 1 2 2 )，該下通孔（3 1 2 2 )則可供一彈 性體（312 3)對應置入並容設於長孔（3121)内； > 該拉桿（3 2 )，係容設於内套管（2 2 )上段之板體，其上端係藉由二固 定件（3 21)穿貫而將其與頭端（31)之套設段（312)互相固定，其 中一固定件（3 21)並抵止於套設段（312)内彈性體（312 3)之下 方，另該拉桿（3 2)之下段則加以彎折形成一滑入段（3 2 2 )及一扣拉段 ( 3 2 3 )； 該作用板（3 3 )，係容設於內套管（2 2 )下段之板體，其上段係加以彎 折形成一導引面（3 3 1 )及一受推凹部（3 3 2 >，該受推凹部（3 3 2 )並 ®與拉桿（3 2 )之滑入段（3 2 2 )及扣拉段（3 2 3 )互相交疊接觸，該作 用板（3 3 )下端對應内套管（2 2 )之穿孔（2 2 1 )處並設有一貫孔（3 3 3)以供前述定位元件（2 3)對應嵌設。 藉由拉提頭端（31)之圓頂部（311)可一併提升拉桿（3 2)，則拉 桿（3 2)之扣拉段（3 2 3 )將把作用板（3 3)具有受推凹部（3 3 2 ) 之一端頂高，俾相對造成作用板（3 3)另一端降低而下壓定位元件（2 3)， 使定位元件（2 3)縮回進而脫離外套筒（21)之定位孔（212)而形成 鬆掣狀態，以令内套管（2 2)可自由伸縮滑移；反之，放開頭端（31)之 M306859 圓頂部（311)時，該頭端（3丄）套設段（3}2)内之彈性體（3工2 3 )則因彈力恢復而帶動拉桿（3 2 )下膝，、隹二入t 、 、以j下降’進而令作用板（3 3 )恢復先前 之狀態，以令定位元件（2 3)再度嵌設於外套筒（2工）之定位孔（2工2 ) 中，藉以達到内套管（2 2)與外套筒（21)形成定位連結之狀態。 .另請參閱第七圖本創作之第三實施例，其中，於護理載具⑴之兩後輪 (1 2 )間預&處更可進-步設置—防傾裝置⑷，俾在椅背傾斜較大角度時 放下而撐抵於地面，以避錄坐者轉理載具⑴之重㈣變而跌落碰傷頭 部；其中該防傾裝置（4)包括一杯技彼r1 , λ 匕括柩接件（4 1)、一支撐桿（4 2)及一定位 元件（4 3 );該樞接件（4 Ί、# & ^ 从 41 )係組έ又於護理載具（1)之連桿（13)近中 段處江型座體，於其樞接件（4 i )預設處並設有二定位孔A、Β ( 4 U ) (4 1 2 );該支撐桿(4 2)之上端係與樞接件（41)互相樞接而形成可選 擇性地放下以撑抵於地面，或加以提升而遠離地面，且於該支撑桿（4 2 )與 地面接觸之下端設有—止滑件（4 2 i );該定位元件（4 3 )係由支撐桿（4 2 )内部牙“可對應嵌設於樞接件（⑴之定位孔a ( *⑴或定位孔 B ( 4 1 2 )中，進而令支撐沐曰 叉保杯（4 2)在放下或提升時皆可確實定位之彈性 凸粒，由於細雜觀縣方趣前賴整裝置（2 )之定位元件（2 3) 相同，故於此便不再贅述。 再月/閱第八圖本創作之第四實施例，其中，該防傾裝置⑷中支 (42)之止滑件（42] 牙干 丄J亦可為一輪體，該輪體之轉動方向並與護 (1 )兩後輪（1 2 )之鏟龢 /、 平寻勁方向形成互為抵制之垂直方向，俾防止護理 ⑴朝兩後輪2)之轉動方向滑移者。 ' 再請參閱第九圖本創作 弟五實施例，其中，該防傾裝置（4)中之樞接 M306859 件（川可為_扣緊夹持於護理載具⑴之連桿（⑶外圍的半圓弧形 板體敲接件（4工）一端並藉由一樞桿（4⑶穿貫而將其搞設於連桿 (^ ) l中域’而該支撐桿（4 2)之上端則與樞接件（4 1 )互相固接 而接件（4 1 )之偏擺伽形成可麵性地放下以撐抵於地面，達 止護理載具（1)傾倒之效果者。 【綜觀本創作構造特色所產生之效果】Carts (such as bathing chairs, hanging chairs or scooters...#), the money is convenient for users to look at them back to the back state, such as the patent announcement No. M2 8 9 3 3 6 "Payment chair structure" patent case (below _study), which mainly includes - the main frame body, including two symmetrical sakis and two symmetrical wires connecting the grid frame, the _ _ end and the shaft has an armrest portion; ―(10)Structural body, the two sides of the two sides and the "Linji set up a job-gambling department, the miscellaneous place is provided with support members for the back frame back support; - the touch device is set in the main frame body On the side, the legs and the ends of the main frame body are obliquely connected to each other, and the telescopic device is connected to each other through the laterally closed connecting rods. When the rear angle is increased, it must be tightened by the screwing element of the side telescopic device to push the elastic lining of the lining of the lining, and then apply the one-handed pressing to the elastic positioning aid of the __ shrinking device, and the occupant lays back. In the force (or the nursing staff will pull the back frame), in order to make the back frame reach the back. It can be seen that the (four) product has a design of _ gamma in the main miscellaneous, not only in the manufacturing cost will be greatly improved, but also in the operation of adjusting the remaining ambiguity because it must go through two procedures. Not practical enough. In view of the above problems, the creator believes that it is necessary to improve, so that the bet will be put into the heart. (4) Chuang 5 and '(4) Xi-Human Measurement and Improvement Correction' is the development of the "care carrier" chair back structure. Improvement, the practical benefits of this type of product in the adjustment of the seat back are greatly improved. 5 M306859 [New Content] The main purpose of this creation is to provide an improved chair back adjustment structure for the care vehicle. The number of parts of the adjustment device for the chair tilt angle is effectively reduced, and the procedure for the job is simplified. The efficiency improvement of operating the valley and reducing the manufacturing cost. Another object of the present invention is to provide an improved backrest adjustment structure of the care vehicle, wherein the anti-tip device disposed between the two rear wheels can achieve an effective support when the care vehicle is changed at a large angle of inclination. The center of gravity is to prevent the occupant from dropping the care vehicle and hurting the head. The purpose of this creation is to solve the problem of prior art techniques. It is a kind of "care chair, month and week, and structure improvement". The device is set up on the back frame of the care vehicle and the preset between the two rear wheels. The utility model mainly comprises a jacket, an inner sleeve and a positioning component; the outer sleeve forms an open end at one end for the inner sleeve to correspond to the sleeve, and the socket element system can be used? The external money helps, by the _ sleeve in the outer sleeve for the slipping and 'with the elementary shape embedded position and fresh detachment, can (4) change the telescopic length of the Wei adjustment device, and then achieve the adjustment of the back frame State. For the purpose of this creation, "Improvement of the adjustment structure of the four-carriers", the purpose, the sister, and the characteristics, will be explained in detail in the following specific examples, and I will learn more about this creation. [Embodiment] Please refer to the first and second figures, which is the first example of the improvement of the structure of the chair of the creative care vehicle. The adjustment of the Wei set (2) is set in the nursing charm (1) and the two (i丄) and two The middle section of the connecting rod (1) between the rear wheels mainly includes an outer sleeve (21), a _(22) and a positioning member (23); wherein: the lower end of the Wei (11) and the rear end of the care carrier (1) ( Forming a furnace-like state, and the horizontal view of the turn (丨i) is provided with two pivot plates (1), and the pivot plate (111) is available for -_ (ii 2) by the side piercing; The outer sleeve M306859 1) is formed with an open end for the inner sleeve (2 2) correspondingly nested hollow cylinder, and a lower end has a pivot sleeve (211) which can be sleeved between the two rear wheels (work 2) a middle portion of the connecting rod (work 3), and the outer sleeve is equidistantly spaced from the peripheral wall of the (21) by a plurality of positioning holes (2丄2); the inner sleeve (2 2 ) is corresponding to the outer sleeve (21) The upper end of the tube body, the upper end of which is pivoted to the middle portion of the horizontal portion of the back frame (, 丄) by the above-mentioned pivot plate (丄丄 ” and the pin (112 y), and the inner casing (2 2) a patient with a tooth hole (2 21); 2 3) is a convex piece having a flexible body 31) and having a telescopic characteristic, which is pierced by the perforation q 2 ^ of the inner sleeve (2 2) and is correspondingly disposed on the outer sleeve (2) 1) > ask you; ^ r 〇, ., wn ) the hole (2 1 2 ) +, in order to achieve the state in which the inner sleeve f ( 2 2 ) forms a positional connection with the outer sleeve (2 1 ). , ./ When the whole seat back tilting operation is carried out [please-see also the second, third and fourth figures], the user only needs to press the lower positioning element (2 3 ) to retract and disengage from the outer sleeve ( 2丄) positioning hole (2 (3), can form a loose state and make the inner sleeve (22) freely in the outer sleeve (1)) for linear sliding multi-turn control _ integral I (2) telescopic length By changing the length of the adjusting device (2), the back frame (;L i ) can be adjusted step by step. When the length of the whole device (2) is long, the back frame (1 is relatively erect) [eg Thirdly, when the length of the touch device (2) is short, the back frame (ii) is in a state of being bribed (if the angle of inclination of the first= is determined, the piece can be placed - the sleeve C~ I, elastic recovery and embedded in the nearest In the positioning hole (212) of the outer casing (21), the one that is in the 'supporting and fixing the back frame (worker) is positive. The positive state is formed. Please refer to the fifth and sixth figures. By pulling the ^= adjusting device (2), the positioning and viewing of the device can be further included. The main component includes a head end (3 1), a pull rod (3 2), a 7 M306859 and an action board. (3 3); wherein the head end (3 1 ) is set at the top end of the inner sleeve (22), and the upper half forms a dome portion (3 1 1 ), and the lower portion of the dome portion (311) is A sleeve (31 2 ) corresponding to the top end of the inner sleeve (2 2), and a long hole (312 1) is formed in the middle portion of the sleeve (312) for the inner sleeve (2 2 ) The rod (1 1 2 ) is pierced, and a through hole (3 1 2 2 ) is communicated with the long hole (3 1 2 1 ) at the center of the bottom end of the sleeve portion (3 1 2 ), and the lower through hole is (3 1 2 2 ), an elastic body (312 3) is correspondingly placed and accommodated in the long hole (3121); > the pull rod (3 2 ) is accommodated in the inner sleeve (2 2 ) The upper body of the plate has its upper end pierced by two fixing members (3 21) and the head The sleeves (312) of the end (31) are fixed to each other, wherein a fixing member (3 21) abuts against the elastic body (312 3) in the sleeve portion (312), and the tie rod (32) The lower section is bent to form a sliding section (3 2 2 ) and a buckle section (3 2 3 ); the action plate (3 3 ) is accommodated in the lower body of the inner sleeve (2 2 ). The upper section is bent to form a guiding surface (3 3 1 ) and a pushing recess (3 3 2 >, the pushing recess (3 3 2 ) and the sliding section of the pulling rod (3 2 ) ( 3 2 2 ) and the buckle section (3 2 3 ) are in overlapping contact with each other, and the lower end of the action plate (3 3 ) corresponds to the perforation (2 2 1 ) of the inner sleeve (2 2 ) and is provided with a constant hole (3 3 3) For the aforementioned positioning element (23) correspondingly embedded. The pull rod (32) can be lifted together by the dome portion (311) of the puller head end (31), and the pull tab (3 2 3) of the pull rod (32) will have the action plate (3 3) One end of the urging recess (3 3 2 ) is high in height, and the cymbal is oppositely caused to lower the other end of the action plate (33), and the positioning member (23) is pressed down, so that the positioning member (23) is retracted and disengaged from the outer sleeve (21). Positioning hole (212) to form a loose state, so that the inner sleeve (22) can be freely stretched and slipped; otherwise, when the M306859 dome portion (311) of the beginning end (31) is placed, the head end (3)丄) The elastic body (3 gong 2 3 ) in the ferrule (3}2) is driven by the elastic force to drive the tie rod (3 2 ) to the lower knee, 隹2 into t, and d to decrease 'and then the action plate ( 3 3) Restore the previous state, so that the positioning component (2 3) is re-embedded in the positioning hole (2 work 2) of the outer sleeve (2 work), so as to reach the inner sleeve (2 2) and the outer sleeve (21) A state in which a positioning connection is formed. Please also refer to the third embodiment of the present invention, in which the pre-preparation between the two rear wheels (1 2) of the care vehicle (1) can be further set up - the anti-tip device (4), the chair When the back is tilted at a large angle, the seat is lowered to the ground to avoid the weight of the seat (1) of the carrier (4), and the head is dropped; wherein the anti-tip device (4) includes a cup of technology, λ 匕a splicing member (4 1), a support rod (42), and a positioning member (43); the pivot member (4 Ί, # & ^ from 41) is attached to the care vehicle (1) ) The connecting rod (13) near the middle section of the Jiang type seat, at the pre-set of the pivoting member (4 i ) and provided with two positioning holes A, Β ( 4 U ) (4 1 2 ); 4 2) The upper end system and the pivoting member (41) are pivotally connected to each other to be selectively lowered to support the ground, or lifted away from the ground, and the lower end of the support rod (42) is in contact with the ground. The sliding member (4 2 i ) is provided; the positioning member (4 3 ) is internally supported by the support rod (42) and can be correspondingly embedded in the pivoting member ((1) positioning hole a (*(1) or positioning hole) B ( 4 1 2 ), and then support the Mu Mu fork protection cup (4 2) The elastic bulge that can be positioned when it is lowered or raised is the same as the locating element (2 3) of the whole device (2) before the detailed observation of the county. Therefore, it will not be repeated here. A fourth embodiment of the present invention, wherein the anti-slip device (4) of the support member (42) of the slider (42) can also be a wheel body, the rotation direction of the wheel body and the protection (1) The shovel and/or the flat direction of the two rear wheels (1 2 ) form a vertical direction against each other, and prevent the care (1) from slipping in the direction of rotation of the two rear wheels 2). Please refer to the ninth figure for the creation. The fifth embodiment, wherein the pivoting device M306859 in the anti-tip device (4) is a semi-arc-shaped plate body knocking member that is fastened to the connecting rod of the nursing carrier (1) ((3) One end of the support rod (4 2) is secured to the pivoting member (4 1 ) by a pivotal rod (4 (3) penetrating through the middle of the connecting rod (^) l The yaw gamma of the connecting piece (4 1 ) is formed to be flattened to support the ground, and the effect of the pouring of the nursing vehicle (1) is achieved. ]
1、 本創作4理載具之椅f調整結構改良，其創作内容及技術特徵見諸同範 脅產品未曾思及、作為之新碰，係為具賴型專.件之創新者。 2、 本創作護理載具之椅_整結構改良，其結構簡單、零件數量精簡，具 有大幅降低製造成本域化操擁序之功效增進，其充分符合產翻祕，實 令人無庸置疑。 貝 3、本創作護理載具之射調整結構改良，韻由設置於兩後輪間之防傾 裝置可在椅_斜較大角度時達到有效支撐護理載具改變後之“，以避免乘 坐者跌洛4理載具而蝴w之功效增進，係為-備具使时全性之創作者。 综上所述，本創作「護理載具之椅背調整結構改良」，確實可達到提升實 用效显之多概點’完全符合新型專利之”要件，爰依法向辦提呈本案 新型專利之帽，敬祈辦暨t審查委^審理，並早日賜准本案之新型 專利，實感德便。 上述「護理載具之椅背調整結構改良」使用及實施例，為本創作較佳實施例 之亚非㈣侷限本創作之特徵，舉凡本創作相關之技術手段、創設原 理之再創作，均應屬本創作之創設目的对請專利範圍之内。 10 M306859 【圖式簡單說明】 第一圖：係本創作第一實施例組設於護理載具之立體外觀圖 第二圖：係第一圖之平面側視圖及部份構件組合放大剖視圖 第三圖··係本創作第一實施例之操作示意圖（一） ， •第四圖：係本創作第一實施例之操作示意圖（二） 第五圖：係本創作第二實施例之立體分解圖 第六圖：係本創作第二實施例之構件組合剖視圖 • 第七圖：係本創作第三實施例組設於護理載具之立體外觀圖 第八圖··係本創作第四實施例組設於護理載具之立體外觀圖 第九圖：係本創作第五實施例組設於護理載具之立體外觀圖 【主要元件符號說明】 1 護理載具 111 柩板 1 2 後輪 14 後立桿 2 1 外套筒 2 1 2 定位孔 2 2 1 穿孔 2 3 1 彈性體 3 1 頭端 3 12 套設段 3 12 2 下通孔 11 背架 112 鎖桿 13 連桿 2 調整裝置^ 211 樞套管 2 2 内套管 23 定位元件 3 操作裝置 311 圓頂部 3121 長孔 3123 彈性體 M306859 3 2 拉桿 3 2 1 固定件 3 2 2 滑入段 3 2 3 扣拉段 3 3 作用板 3 3 1 導引面 3 3 2 受推凹部 3 3 3 貫孔 4 防傾裝置 4 1 才區接件 4 11 定位孔A 4 1 2 定位孔B 4 13 樞桿 42 支撐桿 42 1 止滑件 43 定位元件 121. The design of the 4 sets of the chair of the creation of the instrument is improved. The content and technical features of the creation are not invented by the same model, and the new product is the innovator of the specialized piece. 2. The chair of the creative care vehicle _ the whole structure is improved, the structure is simple, the number of parts is simplified, and the effect of greatly reducing the manufacturing cost of the domain-oriented operation is enhanced, and it fully complies with the production and translation, which is undoubted. Bay 3, the creative adjustment of the creative care vehicle's shot adjustment structure, the rhyme is set by the anti-tilt device between the two rear wheels to achieve the effective support of the care vehicle after the chair _ oblique angle to avoid occupants The effect of the fall of the 4th carrier and the effect of the butterfly w is to create a creator of the time and fullness. In summary, the creation of the "renovation of the chair back adjustment of the care vehicle" can indeed enhance the practicality. The effectiveness of the general point 'completely in line with the new patents' requirements, 爰 legally presented to the Office of the new patent cap of the case, respected the cum t review committee ^ trial, and early grant of the new patent of the case, the real sense of virtue. The use and examples of the above-mentioned "improvement of the chair back adjustment structure of the care vehicle" are the characteristics of the Asian-African (four) limitation of the creation of the preferred embodiment, and the technical means and creation principle of the creation should be re-created. The creation purpose of this creation is within the scope of the patent. 10 M306859 [Simple description of the drawings] The first picture: the second embodiment of the first embodiment of the present invention is set in the three-dimensional appearance of the nursing vehicle: the plane side view of the first figure and the enlarged sectional view of some components. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the operation of the first embodiment of the present invention, and the fourth diagram is a schematic diagram of the operation of the first embodiment of the present creation (2). FIG. 5 is an exploded perspective view of the second embodiment of the present creation. Fig. 6 is a cross-sectional view showing the components of the second embodiment of the present invention. The seventh embodiment is the third embodiment of the third embodiment of the present invention. The ninth picture of the three-dimensional appearance of the nursing vehicle: The third embodiment of the present invention is set in the three-dimensional appearance of the nursing vehicle. [Main component symbol description] 1 Nursing vehicle 111 柩 board 1 2 Rear wheel 14 Rod 2 1 Outer sleeve 2 1 2 Positioning hole 2 2 1 Perforation 2 3 1 Elastomer 3 1 Head end 3 12 Set section 3 12 2 Lower through hole 11 Back frame 112 Lock lever 13 Connecting rod 2 Adjusting device ^ 211 pivot Casing 2 2 inner sleeve 23 positioning element 3 operating device 3 11 Dome 3121 Long hole 3123 Elastomer M306859 3 2 Pull rod 3 2 1 Fixing piece 3 2 2 Slide into section 3 2 3 Pulling section 3 3 Actuating plate 3 3 1 Guide surface 3 3 2 Push recess 3 3 3 Hole 4 Anti-roll device 4 1 Port 4 11 Positioning hole A 4 1 2 Positioning hole B 4 13 Pivot 42 Support rod 42 1 Slip member 43 Positioning element 12