200814982 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種代步車，特別是指一種可在高低 起伏不平地面上穩定且靈敏地作貼地行走的具有傳動懸吊 系統之代步車。 【先前技術】 苓閱圖1，一種習知電動代步車10具有一車架u、一 軸^在車架11中間位置處的驅動輪單元12、-柢設在車架 二方處的別輪單疋！ 3、以及—枢設在車架U後方處的後 輪早儿14,该驅動輪單元12可接受一馬達（圖未示）帶動運 轉，藉此可帶動整部電動代步車1〇行進移動，前輪單元Η 八有接叹在車架11前方處的臂板座131、-樞接在臂板 座m上可上下活動擺轉的前車輪架132、一軸設在前車輪 架;：下端處的前車輪133、以及一鎖接聯結在前車輪架 垃木U之間的彈性板片m，後輪單元14具有一枢 …車架11後方處可上下活動擺轉的後車輪架141、一軸 设在後車輪架141下端處 後車輪架⑷盘車芊“之：: 以及-樞接聯結在 後車輪_ 132j 彈簧緩衝件143,藉由前、 輪*132、141可上下旋擺的機構動作，以及運用彈性 板片m與彈簧緩衝件 ：…生 评f 口设動作，使電動代步 避震二 的地*行走’達到跨越障礙且具有緩衝 效果上實具有可在高低不平地面行走的 有而要改進的地方，一般電動代步車 200814982 ίο通吊疋在車架u中間獨立設置該驅動輪單元i2，驅動輪200814982 IX. Description of the Invention: [Technical Field] The present invention relates to a scooter, and more particularly to a scooter having a transmission suspension system that can stably and sensitively walk on high and low undulating ground. . [Prior Art] Referring to Figure 1, a conventional electric scooter 10 has a frame u, a shaft, a drive wheel unit 12 at a position intermediate the frame 11, and a wheel set at the two sides of the frame. Hey! 3. The rear wheel 14 is pivoted at the rear of the frame U. The drive wheel unit 12 can be driven by a motor (not shown), thereby driving the entire electric scooter to move. The front wheel unit 八8 has an arm plate seat 131 at the front of the frame 11, a front wheel frame 132 pivotally connected to the arm plate base m, and a shaft is disposed at the front wheel frame; a front wheel 133 and a resilient plate m coupled between the front wheel frame rails U. The rear wheel unit 14 has a rear wheel frame 141 and a shaft set at the rear of the frame 11 At the lower end of the rear wheel frame 141, the rear wheel frame (4) rim 芊 ":: and - pivotally coupled to the rear wheel _ 132j spring buffer 143, by means of the front, the wheels * 132, 141 can be swung up and down, And the use of the elastic plate m and the spring buffer: ... the evaluation of the f-mouth action, so that the electric walking and shock-absorbing two ground * walking 'reaching obstacles and having a cushioning effect on the ground can have a high and low uneven ground Improved place, general electric scooter 200814982 ίο通 hanging on the frame u independently set the drive wheel unit i2, drive wheel
⑽與前、後輪單元13、14之間並沒有任何連動關传厂 因此當前、後輪料13、14跨越通過高衫出的路面後， 中間的驅動輪單元12往往會因為被前、後輪單元13、μ竿 撐起來而減少與地面間的接觸面積，甚至是完全懸空狀態木 貼地性能不佳’在未能充份與地面摩擦接觸下，驅動輪^元 12甚至會造成空轉，此時便無法產生足夠驅動力讓整部電 動代步車10川員利通過障礙，如果剛好又遇到上坡路段，則 3玄電動代步車10有可能會因為動力不足而倒退反向行走， 造成相當大的危險。 【發明内容】 因此，本發明之目的在提供一種可在高低起伏不平地 L疋且A敏地作貼地行走效果的具有傳動懸吊系統 代步車。 ;疋本餐明k供一種具有傳動懸吊系統之代步車， 包含有一車本體、一驅動輪單元、一前輪單元及一後輪單 一 〃中.该驅動輪單元具有一可搖擺地設置在車本體上 I轴座、一可轉動地設置在轉軸座上且剛好對應車本體 中門重、位置處的驅動輪、以及一裝設在轉軸座上可帶動 驅動輪運轉的驅動器；前輪單元具有一軸設在車本體前方 处可作相桿式擺動的前連桿、一設置在前連桿下端處的前 串 、 闲、以及一接設在前連桿與轉軸座之間提供驅動輪下壓 力1的第一緩衝元件；後輪單元具有一軸設在車本體後方 處可作槓桿式擺動I後連桿、一設置在後連桿下端處的後 200814982 車輪、一接設在後連桿與車本體之間提供後車輪下壓力量 的第二緩衝元件、以及一樞接聯結後連桿與轉軸座之間可 帶動驅動輪下壓的作動桿。 本發明之功效是利用前、後輪單元作槓桿式連動，可 帶動前、後車輪及驅動輪作下壓動作，使上述各輪可與地 面保持接觸，藉此達到穩定貼地行走的使用效果。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖2、圖3,本發明具有傳動懸吊系統之代步車在 一車父佳貫施例中’主要包含有一車本體2〇、一驅動輪單元 30、一前輪單元40及一後輪單元50，接著，再將上述各單 元的組成構件及組合空間型態詳述於后。 该車本體20主要是略呈矩形狀的箱殼體，車本體2〇 上方處具有一安裝平台21，該安裝平台21可供接設一座椅 (圖未示），車本體20前、後方的兩側邊處各設有一組臂板 座22、Μ，前、後臂板座22、23皆是由二片臂板22ι、 231及數根連接扣222、232組接構成，連接桿222、232兩 端架撐鎖固定在二臂板221、231之間，使前、後f板座22 、23内部是呈中空狀。 同時參閱圖4,該驅動輪單元3〇具有一軸設在車本體 20上可上下擺動的轉軸座31、一軸設在轉轴座η上且剛 好對應車本體20中㈣讀置處的,_輪32、—裝設在轉 200814982 軸座31上提供動力可帶動驅動輪32轉動的驅動器33。該 車τ軸座31具有一搖桿311及一接設在搖桿3ΐι下緣處的基 座體312’该搖桿311前端具有一軸設在後臂板座下端 處的軸接端3111，使整個轉軸座31以軸接端3111為旋轉 中〜可作上下擺動狀，搖桿3 11在對應基座體3 12上方位置 處設有一樞接耳部3112，該基座體312内部裝設有一減速 機構（圖未示），其外側邊可供驅動輪32的輪軸321作穿樞 固定，使驅動輪32的位置剛好位於車本體2〇中間重心處 ，在本實施例中，該驅動器33為一種電動馬達，其裝設固 疋在基座體312的後側位置處，剛好可帶動基座體312内 部的減速機構運轉，再透過減速機構驅轉該驅動輪32。 该珂輪單元40具有一軸設在車本體2〇後方處的前連 桿41、一設置在前連桿41下端處的前車輪42、以及一接 設在前連桿與轉軸座31之間的第一緩衝元件43。前連 桿41進入前臂板座22内部並伸出到達轉軸座31的上方處 ，其中間處設有一軸接固定在前臂板座22内部的支點軸 411 ’使刚連桿41以支點軸411為旋轉中心可作槓桿式擺動 ，珂連桿41的前端處設有一可供前車輪42套樞固定的圓 柱形套管412，前連桿41的後端處設有一樞接部413，第 一緩衝元件43是採用一種彈簧避震器，使第一緩衝元件43 上端槐接在前連桿41的樞接部413上，下端則樞接在搖桿 311的樞接耳部3112上，如此第一緩衝元件杓可緩衝前車 輪42之衝擊彈跳力量，提供前車輪42具有下壓彈復力， 且同時可與轉軸座31連動對驅動輪32進行下壓。 200814982(10) There is no linkage between the front and rear wheel units 13, 14 so that the current and rear wheel materials 13 and 14 cross the road surface passing through the high shirt, and the middle drive wheel unit 12 tends to be front and rear. The wheel unit 13 and the μ unit are supported to reduce the contact area with the ground, and even the fully suspended state has poor performance. In the failure to fully contact the ground friction, the driving wheel 12 may even cause idling. At this point, it will not be able to generate enough driving force to allow the entire electric scooter 10 to pass through the obstacles. If it happens to encounter an uphill section, the 3 Xuan electric scooter 10 may reverse backward walking due to insufficient power, resulting in considerable Great danger. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a transmission suspension system scooter that can perform an ergonomically high and low undulating behavior. The utility model provides a scooter with a transmission suspension system, comprising a vehicle body, a driving wheel unit, a front wheel unit and a rear wheel unit. The driving wheel unit has a swingable setting in the vehicle. An I-axis seat on the main body, a driving wheel rotatably disposed on the rotating shaft seat and corresponding to the door weight and position in the vehicle body, and a driver mounted on the rotating shaft seat to drive the driving wheel to operate; the front wheel unit has an axis a front connecting rod disposed at the front of the vehicle body for swinging the phase rod, a front string disposed at the lower end of the front connecting rod, and a driving wheel under the front connecting rod and the rotating shaft seat. The first cushioning component; the rear wheel unit has a shaft disposed at the rear of the vehicle body to be a lever swinging I rear connecting rod, a rear 200814982 wheel disposed at the lower end of the rear connecting rod, and a rear connecting rod and the vehicle body A second cushioning member for providing a downward pressure of the rear wheel, and an actuating lever for driving the driving wheel to be depressed between the pivoting link and the rotating shaft seat. The utility model has the advantages that the front and rear wheel units are used for lever linkage, and the front and rear wheels and the driving wheel are driven to be pressed downwards, so that the above wheels can be kept in contact with the ground, thereby achieving the effect of stable walking and walking. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to FIG. 2 and FIG. 3, the scooter having the transmission suspension system of the present invention mainly includes a vehicle body 2〇, a driving wheel unit 30, a front wheel unit 40 and a rear wheel unit. 50. Next, the constituent members and combined spatial patterns of the above units are detailed later. The vehicle body 20 is mainly a slightly rectangular box casing, and a mounting platform 21 is disposed above the vehicle body 2, and the mounting platform 21 can be connected to a seat (not shown), and the front and rear of the vehicle body 20 Each of the two sides is provided with a set of arm plates 22 and Μ, and the front and rear arm plates 22 and 23 are composed of two arm plates 22, 231 and a plurality of connecting buckles 222 and 232, and the connecting rod 222 is connected. 232, the two ends of the bracket are fixed between the two arm plates 221, 231, so that the front and rear f seats 22, 23 are hollow inside. Referring to FIG. 4, the driving wheel unit 3 has a shaft seat 31 which is disposed on the vehicle body 20 and can swing up and down. A shaft is disposed on the shaft seat η and corresponds to the reading position of the vehicle body 20 (4). 32. The driver 33 is provided on the rotating shaft of the 200814982 shaft seat 31 to drive the driving wheel 32 to rotate. The axle seat 31 has a rocker 311 and a base body 312' attached to the lower edge of the rocker 3ΐ. The front end of the rocker 311 has a shaft end 3111 which is disposed at the lower end of the rear arm seat. The entire rotating shaft seat 31 is rotated by the shaft end 3111. The rocking rod 3 11 is provided with a pivoting ear portion 3112 at a position above the corresponding base body 3 12 . The base body 312 is internally provided with a pivoting portion 3112 . The decelerating mechanism (not shown) has an outer side for the axle 321 of the driving wheel 32 to be pivotally fixed, so that the position of the driving wheel 32 is located at the center of gravity of the center of the vehicle body 2, in the embodiment, the driver 33 An electric motor is mounted on the rear side of the base body 312, just to drive the speed reduction mechanism inside the base body 312, and then drive the drive wheel 32 through the speed reduction mechanism. The wheel unit 40 has a front link 41 disposed at a rear of the vehicle body 2, a front wheel 42 disposed at a lower end of the front link 41, and a front connecting link between the front link and the shaft base 31. First buffer element 43. The front link 41 enters the inside of the forearm plate base 22 and protrudes above the shaft seat 31, and a fulcrum shaft 411' axially fixed to the inside of the forearm plate base 22 is provided at the middle thereof so that the rigid link 41 is supported by the fulcrum shaft 411. The rotating center can be pivoted. The front end of the connecting rod 41 is provided with a cylindrical sleeve 412 for pivoting the front wheel 42. The front end of the front connecting rod 41 is provided with a pivoting portion 413. The element 43 is a spring shock absorber, and the upper end of the first cushioning member 43 is connected to the pivoting portion 413 of the front link 41, and the lower end is pivotally connected to the pivoting ear portion 3112 of the rocker 311. The cushioning member 杓 can cushion the impact bounce force of the front wheel 42 and provide the front wheel 42 with a lower buckling recombination force, and at the same time, the driving wheel 32 can be pressed down in conjunction with the rotating shaft seat 31. 200814982
該後輪單元50具有一軸設在車本體20前方處可作積 桿式擺動的後連桿51、一設置在後連桿51下端處的後車2 52、 一接設在後連桿51與車本體20之間的第二緩衝元^ 53、 以及一樞接聯結在後連桿51與轉軸座31之間的作動 桿54。後連桿51進入後臂板座23内部並伸出到達轉軸座 31的上方處，其中間處設有一軸接固定在後臂板座乃内部 的支點軸511，使後連桿51以支點軸511為旋轉中心可作 槓桿式擺動，後連桿51的後端處設有一可供後車輪Μ套 樞固定的圓柱形套管512,靠近後方套管512上側邊位置處 設有—接耳513，而後連桿.51在前端處設有一樞接部5 = ’：本實施例中’第二緩衝元件53同樣也是採用—種彈. 避震器，使第二緩衝元件53後端樞接在後.連桿51的接= ⑴上’前端則枢固定在後臂板座23内部，可抑制後車輪 W的彈跳動作，同時也限制驅動輪32向上行程，第二緩^ 兀件53提供後車輪52具有下壓彈復力，該作動桿54上端 樞接在後連桿51的樞接部514上，下端則與第—緩衝元件 =共同樞接在搖桿311的樞接耳部3112上，如此後連桿W 措由作動桿54可帶動轉軸座31進行下壓。 二即為本發明具有傳動懸吊系統之代步車各構件形 、、且口空間型態的概述；接著，再說明本發 及預期所能達成之功效陳述如后： 〇勤作以 :_ 5 ’當本發明驅動輪32行走在-突出路〇 日^所輪單元的前連桿41受到第一緩衝元件43彈抵， 以點轴4U為旋轉中心作順時針方向旋擺，使前車輪们 200814982 得以下壓貼抵地面’後輪單元5G的後連桿51受到第二緩 衝凡件53彈抵’以支點軸511為旋轉中心作逆時針方向旋 擺，同樣使後車輪52得以下壓貼抵地面，藉此前車輪42、 .¾動輪32錢車輪52可同時料與地面接觸，以達到三 輪平穩貼地的行走效果。The rear wheel unit 50 has a rear connecting rod 51 which is arranged in the front of the vehicle body 20 and can be used for the swinging of the rod. A rear connecting rod 52 disposed at the lower end of the rear connecting rod 51 is attached to the rear connecting rod 51. A second buffer unit 53 between the vehicle body 20 and an actuating lever 54 pivotally coupled between the rear link 51 and the shaft base 31. The rear link 51 enters the inside of the rear arm seat 23 and protrudes above the rotating shaft seat 31, and a fulcrum shaft 511 axially fixed to the inside of the rear arm plate seat is disposed at a middle thereof, so that the rear connecting rod 51 is a fulcrum shaft 511 is a pivoting center for lever swinging, and a rear end of the rear connecting rod 51 is provided with a cylindrical sleeve 512 for pivoting the rear wheel sleeve, and an ear is disposed adjacent to the upper side of the rear sleeve 512. 513, and the rear link .51 is provided with a pivoting portion at the front end. 5 = ': In the present embodiment, the second cushioning member 53 is also a type of bomb. The shock absorber is used to pivot the rear end of the second cushioning member 53. In the rear connection of the connecting rod 51 (1), the front end is pivotally fixed inside the rear arm rest 23, which can suppress the bouncing action of the rear wheel W, and also restricts the upward travel of the driving wheel 32, and the second damping member 53 provides The rear wheel 52 has a buckling force. The upper end of the actuating lever 54 is pivotally connected to the pivoting portion 514 of the rear link 51, and the lower end is pivotally coupled to the pivoting ear portion 3112 of the rocker 311. In this way, the rear link W is driven by the actuating lever 54 to drive the pivot base 31 to be depressed. The second is an overview of the shape of each component of the scooter with the transmission suspension system of the present invention, and the shape of the mouth space; then, the description of the functions that can be achieved by the present invention and the expected performance is as follows: 〇勤作:_ 5 'When the driving wheel 32 of the present invention travels on the - protruding road day, the front link 41 of the wheel unit is biased by the first cushioning element 43 and is rotated clockwise with the point axis 4U as a center of rotation, so that the front wheels are 200814982 The rear link 51 of the rear wheel unit 5G is pressed against the ground by the second cushioning member 53, and the counterclockwise direction is swung with the pivot axis 511 as the center of rotation, and the rear wheel 52 is also pressed. Up to the ground, the front wheel 42, the 3⁄4 moving wheel 32 money wheel 52 can be simultaneously contacted with the ground to achieve a three-wheel smooth walking effect.
士二〗圖6田本發明驅動輪32行走在一低陷路面2〇〇 =月’J輪單7L 40的前連桿41受到前車輪42壓迫，使前連 杯41以支點軸411為旋轉中心作逆時針方向旋擺，前連桿 41藉由第—緩衝元件43對驅動輪32提供下壓力量，使驅 動輪32可與低陷路面2GQ貼抵接觸，另外，後輪單元50 的後連桿51受到後車輪52壓迫，使後連桿Μ以支點轴 5U為旋轉中心作順時針方向旋擺，後連桿51藉由作動桿 54再對驅動輪32提供一下壓力量，如此可確保驅動輪μ 與地面保持關不Μ ’達到三輪平穩㈣的行走效果。 综上所述，本發明具有傳動懸吊系統之代步車主要是 為了解决¥知電動代步車1〇的驅動輪單元12容易懸空空 轉，問題’本發明的技術手段主要是利用前輪單元及後 輪早70 50與中間驅動輪32作成互動連動關係，當前、後 車輪42、52行走於高低起伏不平的地形時，在同—時間内 會帶動該驅純32力出適當的下塵動作，而第―、第二緩 衝7L件43、53除了提供緩衝避震的功能以外，更對前、後 車輪42、52提供有彈性壓抵的力量，使前、後車輪42、μ 可保持與地面作接觸，而驅動輪32受到前、後輪單元4〇、 5〇以連桿方式㈣下壓，可令㈣輪32蘭與地面接觸， 10 200814982 如此本發明可-直保持三輪貼地行走的狀態，正常輪出驅 轉力帶動車本體2G行進，行進過程相當平穩、安全且順暢 。另外’驅動輪32是裝設在車本體2〇中間重心的位置， 有助於車本體2G保持均—直線方向前進，*且前、後車輪 42、52與驅動輪32之間的相對距離較-般車輛短，可有^ 縮短車本體20的迴旋半徑，本發㈣操控性相當靈敏 轉弓此力佳，具有極為便利的代步效果。 惟以上所述者，僅為本發明之一較佳實施例而已，备 不能以此限定本發明實施之範圍，即大凡依本發明申^ 利範圍及發明說明内容所作之簡單的等效變化與修飾^ 仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是習知電動代步車的組合圖； 圖2是本發明具有傳動懸吊系統之代步車一 !的組合立體圖，說明本發明包含有-車本體、—驅：： 早疋、一前輪單元及一後輪單元； ' 圖3疋上述較佳實施例的組合圖，說明本發明行 一般平地時的狀態； 圖4是上述較佳實施例的組合剖視圖，說明前、後於 早兀利用連日桿方式與驅動輪單元達成連動的組合情形，·研 一今圖5疋上述較佳實施例的動作圖，說明本發明行走在 走的f主〒面^ Μ、後輪單凡與驅動輪單元作三輪貼地行 圖6是上述較佳實施例的動作圖，言兒明本發明行走在 200814982 ' 一低陷路面時，前、後輪單元與驅動輪單元作三輪貼地行 . 走的情形。士二〗 Figure 6 Field driving wheel 32 of the present invention is driven on a low-lying road surface 2〇〇=month 'J wheel single 7L 40 front link 41 is pressed by the front wheel 42 to rotate the front connecting cup 41 with the fulcrum shaft 411 The center swings counterclockwise, and the front link 41 provides a downward pressure to the drive wheel 32 by the first cushioning member 43, so that the drive wheel 32 can be in contact with the low trapped road surface 2GQ, and the rear wheel unit 50 is rearward. The connecting rod 51 is pressed by the rear wheel 52, so that the rear connecting rod 旋 is rotated clockwise with the fulcrum shaft 5U as a center of rotation, and the rear connecting rod 51 provides a downward pressure to the driving wheel 32 by the actuating rod 54, thereby ensuring a certain amount of pressure. The drive wheel μ is kept away from the ground. 'Achieve three rounds of smooth (four) walking effect. In summary, the scooter having the transmission suspension system of the present invention is mainly for solving the problem that the driving wheel unit 12 of the electric scooter 1 is easily suspended and idling. The technical means of the present invention mainly utilizes the front wheel unit and the rear wheel. The early 70 50 is in an interactive relationship with the intermediate driving wheel 32. When the current and rear wheels 42 and 52 are traveling on the undulating terrain, the driving force of the driving force 32 forces the appropriate dusting action in the same time. ― The second buffering 7L members 43 and 53 provide a shock-absorbing function to the front and rear wheels 42 and 52, so that the front and rear wheels 42 and μ can maintain contact with the ground. The driving wheel 32 is pressed by the front and rear wheel units 4〇, 5〇 in the connecting rod manner (4), so that the (four) wheel 32 blue is in contact with the ground, 10 200814982. Thus, the present invention can directly maintain the state of three-wheeled walking. The normal rotation drive force drives the car body to travel 2G, and the travel process is quite stable, safe and smooth. In addition, the 'drive wheel 32 is installed at the center of gravity of the center of the vehicle body 2, which helps the vehicle body 2G to maintain a uniform-linear direction, * and the relative distance between the front and rear wheels 42, 52 and the drive wheel 32 is higher. - The vehicle is short, and there is a ^ shortening the radius of the car body 20, the hair (4) handling is quite sensitive and the bow is good, with a very convenient step-by-step effect. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change between the scope of the invention and the description of the invention is Modifications ^ are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a combination view of a conventional electric scooter; FIG. 2 is a combined perspective view of a scooter one with a transmission suspension system according to the present invention, illustrating that the present invention includes a vehicle body, a drive: A front view, a front wheel unit and a rear wheel unit; 'Fig. 3 is a combination view of the above preferred embodiment, illustrating a state in which the present invention is generally flat; FIG. 4 is a combined sectional view of the above preferred embodiment, illustrating After the combination of the daily rod method and the driving wheel unit in the early morning, the action diagram of the above preferred embodiment is shown in FIG. 5 to illustrate the main surface of the present invention. Figure 6 is a three-wheeled map of the driving wheel unit. Figure 6 is an action diagram of the above preferred embodiment. It is stated that the present invention walks on 200814982'. When the road surface is low, the front and rear wheel units and the driving wheel unit are three-wheeled. OK. The situation of walking.
12 20081498212 200814982
【主要元件符號說明】 20…… …車本體 41—— •…前連桿 21…… …安裝平台 411… •…支點轴 22…… …鈾臂板座 412… •…套管 221 *··· …臂板 413… 柩接 222 …·· …連接桿 42........ •…兩車輪 23........ …後臂板座 43 ··.·· …·第一緩衝元件 231 •… …臂板 50…… •…後輪單元 232 ···. …連接桿 51 _ …· •…後連桿 30…… …驅動輪單元 511 ··· •…支點軸 3 1…… …轉軸座 512… …·套管 31 卜·· …搖桿 513… •…接耳 3111··· 轴接ί而 514… 極接部 3112··· 柩接耳部 52…… …·後車輪 312 …· …基座體 53…… •…第二緩衝元件 32........ …驅動輪 54····· •…作動桿 321 ···· …輪軸 100… •…突出路面 33····.. …驅動态 200… •…低陷路面 40…… …前輪單元 13[Main component symbol description] 20... ...car body 41——•...front link 21.........mounting platform 411...•...fulcrum shaft 22......uranium arm seat 412... •...sleeve 221 *·· · Arm plate 413... 柩 222 ...·· ... Connecting rod 42........ •...Two wheels 23...........Back arm seat 43 ········ First cushioning element 231 • Arm plate 50... • Rear wheel unit 232 ...···. Connecting rod 51 _ ...· •... Rear link 30... Driving wheel unit 511 ··· •... fulcrum shaft 3 1...... ...spindle base 512...·sleeve 31 卜··... rocker 513... •... inger 3111··· shaft ί and 514... pole joint 3112··· 柩 耳 52 52... ...· Rear wheel 312 ...·...Base body 53...•...Second cushioning element 32........Drive wheel 54······...Acertion rod 321 ·····Axle 100 ... • ... prominent road surface 33····.. ... drive state 200... •... low depression road surface 40... ...front wheel unit 13