201204587 ; v"vv〜* ”r 34987tw£doc/n 六、發明說明： 【發明所屬之技術領域】 本發明是與一種機動車有關，且特別是與一種三輪機 動車有關。 【先前技術】 機動車（motor vehicle)為使用燃料或電力來驅動的 交通工具，如常見的二輪機動車或是供殘障人士使用的三 輪機動車。-般之二輪機動車在濕滑或散佈砂石的路面轉 彎時極易滑倒並造成危險’而三輪機動車於急速過弯或做 緊急閃避時，往往也易於如貨車或遊覽車般，會有向外翻 覆的危險。 -般來說’若要透過-般駕敌人的錄與技術來避免 發生滑倒或翻覆之危險，是相當不可靠且極不易避免的。 由於個人駕啟習慣及經驗不同，對於不同與不熟之路面發 生的反應也會有所差異，因此由上述原因所導致的車禍仍 時有所聞，同時造成許多家庭的生命財產損失。 有鑑於此，部分機動車大多使用較多複雜的電子感測 器與驅動器來提升操控性，以改善上述缺失。但此種機動 車造價昂貴且易生故障，而僅能淪為富人們的高級休閒玩 具，無法真正成為民生樂利、造福肢障弱勢族群的辅具或 平易近人的日常交通工具。 【發明内容】 201204587 wyw^sTW 34987twf.doc/n 其具有較佳的操控性及 本發明提供一種三輪機動車 安全性。 發月種二輪機動車，其包括車體、兩桿件、 A S後輪、止撞結構及連桿組。 及位於第一框接點與第二極接= t樞，點，其中車體係與各桿件的第三框接點樞接。一 樞接於兩第-_點，另—輪朗係域於兩第二 ，接，，以使兩輪座及兩桿件構成四連桿機構。兩後輪係 =接於兩輪座。止擋結構係固定於車體。連桿_接 ;車體及四連桿機構之間’其巾t車雜彎傾斜時，連桿 t會相對車體而從第—狀態作動至第二狀態，並藉由四連 桿機構帶動兩輪座傾斜，在連桿組處於第二狀態時會承靠 於止擋結構上，以限制兩輪座的傾斜範圍。 、，_在本發明之一實施例中，上述之兩桿件係實質上相互 平行且沿水平方向樞接於車體及兩輪座上，兩第一樞接 點、兩第二樞接點及兩第三樞接點會在垂直水平方向的平 面士的投影界定出一矩形，兩第一樞接點及兩第二樞接點 在平面上的投影係為該矩形的四頂點，兩第三樞接點在平 面上的投影分別位於矩形之相對的兩邊線上。 在本發明之一實施例中’上述之連桿組包括兩第一連 桿、兩第二連桿及兩第三連桿。兩第一連桿係樞接於一桿 件而77別位於第二極接點兩側，其中各第一連桿於遠離桿 牛的端係具有第四枢接點。兩第一連桿係槐接於車體且 分別樞接於兩第四樞接點。兩第三連桿係相互樞接且分別 34987twf.doc/n 201204587 樞接於兩第四插接點。 二==且，止撑結構具有滑槽， 動，當連桿組虚Μ -I處糸Z、有滑塊，滑塊於滑槽中滑 在本發明之nr ’滑塊會承靠於滑槽的末端。 及第上述之各桿件包括第一橫桿 矛祆杵的一端，第一橫桿的 二橫桿的另一端，第三拖接； 二桿組作動於第 二橫桿連桿_作動方式，雜止第-橫桿與第 & 兩撲 i軍動，狀』時魏並不會妨礙連桿組之 2塊1處於第二狀態時…第二連制會承靠於 ^本U之—實_巾’上狀各魏均具有止擔 面，用以承#對應之第二連桿，三輪軸車可 個分別連接兩贱之馬達，各馬達可驅使對叙撐塊3 而改變止擋面的角度’以調整所對應之第二連桿的作動 圍。 辄 在本發明之一實施例中，上述之三輪機動車更包括第 四連桿，其中細連桿係樞接於兩第三連桿相互㈣ 樞接於車體，各桿件包括第一橫桿及第二橫桿。第一 點係位於第一橫桿的一端。第二樞接點係位於第二橫桿的 201204587 jfW 34987twf.doc/n 接=2另一_接於第二橫桿的另-端，第 制==:：^中，第四連桿會限 動。 止第一杈桿與第二橫桿相對轉 在本發明之一實施例中，上 接於車體前端的前輪。 -輪機動車更^括柩 制、查，η，’本發明的三輪機動車可藉由止擔結構來限 =r，以對兩輪座的傾斜範圍進行控制。藉此， ==機動車過彎或行經狀況不良之路面時，可避免輪座 及車體過度傾斜而發生向内傾倒的危險。 為讓本發明之上述特徵和優點能更明顯易懂，下文特 舉實施例，並配合所_式作詳細說明如下。 【實施方式】 圖1為本發明的一實施例之三輪機動車的立體圖。圖 Μ及圖2Β為圖1之三輪機動車的部分構件作動流程圖。 請參考圖1及圖2Α’本實施例的三輪機動車1〇〇包括車體 110、兩桿件12〇、兩輪座13〇、兩後輪14〇、止擋結構15〇、 連桿組160及前輪170。各桿件120均具有第一樞接點 120a、第二樞接點i20b及位於第一樞接點12〇&與第二拖 接點120b之間的第三枢接點i2〇c。 車體110係枢接於各桿件12〇的第三樞接點12〇c。一 輪座130係樞接於兩第一樞接點12〇a，另一輪座13〇則係 201204587 ---------/ 34987twf.doc/n 框接於兩第二樞接點120b，以使兩輪座130及兩桿件i2〇 可以構成四連桿機構，以利車體110及輪座130得以藉由 所述之四連桿機構的作動而傾斜。兩後輪140係分別樞接 於兩輪座130。止擋結構150係固定於車體110。連桿組 16〇係耦接於車體11〇及所述四連桿機構之間，前輪17〇 則係框接於車體110前端。 連桿組160係適合於相對車體110而從圖2A所示狀 態作動至圖2B所示狀態，並藉由所述四連桿機構帶動兩 ，座130傾斜。在連桿組16〇處於圖2B所示狀態時會承 靠止擋結構15〇，以限制兩輪座13〇的傾斜範圍。藉此， 本實施例的二輪機動車100可藉著止擋結構來限制連 桿組160的作動，以對兩輪座13〇的傾斜範圍進行控制， 而使三輪機動車100於過彎或行經狀況不良之路面時，可 避免輪座130及車體Π0過度傾斜而發生向内傾倒的危 險。需注意的是，圖2B繪示車體11〇及輪座13〇向右傾 斜的狀況，車體110及輪座13〇亦可藉連桿組16〇的帶動 而向左傾斜，向左傾斜的作動方式類似於圖2B所示之向 右傾斜，故於此不再贅述。 詳細而言，本實施例的兩桿件160係實質上相互平行 且>^3水平方向D(}a入紙面的方向)枢接於車體HQ及兩輪 座130,兩第一樞接點i2〇a、兩第二樞接點12%及兩第三 樞接點120c在垂直水平方向D的平面上會投影界定出矩 形R，兩第一樞接點12〇a及兩第二樞接點12〇b ,係位在 所述平面上的投影矩形+R的四頂點上，而兩第三樞接點 201204587 V77VW-?j IW 34987twf.doc/n 120c則係分別位於所述平面上投影矩形R之相對的兩邊線 上’藉以使兩輪座130及兩桿件12〇構成所述四連桿機構。 在本實施例中，連桿組160包括兩第一連桿162、兩 第二連桿164及兩第三連桿ΐ6ό。兩第一連桿162係樞接 於桿件120而分別位於第三樞接點12〇c兩侧，其中各第一 連桿162在遠離桿件12〇的一端具有第四樞接點162a。兩 第二連桿164係樞接於車體110且分別樞接於兩第四樞接 φ 點162a°兩第三連桿166係相互柩接且分別樞接於兩第四 樞接點162a，以達成圖2A至圖2B的作動方式。 在本實施例中，止擋結構15〇具有滑槽152，兩第三 連桿166之相互樞接處係具有滑塊166a，滑塊166a係於 滑槽152中滑動。當連桿組16〇處於圖2B所示狀態時， 滑塊166a係承靠於滑槽152的末端，以限制連桿組16〇 的作動範圍及兩輪座13〇與兩後輪14〇的傾斜範圍。 更詳細而言，本實施例中的各桿件12〇可由第一橫桿 122及第二橫桿124相互樞接而組成。第一樞接點12〇&係 # 位於第一横桿122的一端。第二樞接點12〇1)係位於第二橫 桿124的一端，第一橫桿122的另一端則係樞接於第二橫 桿124的另一端，第三樞接點120c係位於第一橫桿122 與第二橫桿124相互樞接處。滑槽152的形狀可經計算而 加以設計，以使連桿組16〇於圖2A所示狀態及圖2B所示 狀態之間的過程中作動，滑槽〗52係適合於限制連桿組16〇 的作動方式’以阻止第-橫桿122與第二橫桿124相對轉 動，確保兩桿件120與兩輪座13〇是以四連桿方式作動。 34987twf.doc/n 201204587 圖3A及圖3B係為本發明另一實施例之三輪機動車的 部分構件作動流程圖。請參考圖3A及圖3B，在本實施例 中，止擋結構250包括兩擋塊252 ,連桿組260包括兩第 一連桿262、兩第二連桿264及兩第三連桿266。兩第一連 桿262係樞接於桿件220而分別位於第三樞接點22〇c兩 侧，其中各第一連桿262係遠離桿件220的一端而具有第 四樞接點262a。兩第二連桿264係樞接於車體21〇且分別 樞接於兩第四樞接點262a。兩第三連桿266係相互樞接且 分別樞接於兩第四樞接點262a，藉以達成圖3A至圖3b 的作動方式。當連桿組260處於圖3B所示狀態時，一第 二連桿264會承靠於對應之擋塊252上，以限制連桿組26〇 的作動範圍及兩輪座230與兩後輪240的傾斜範圍，以避 免高速過彎或高速行經狀況不良之路面時，車體21〇傾斜 過度而向内傾倒。 圖4為圖3A之馬達驅動擋塊轉動的示意圖。請參考 圖3A及圖4，詳細而言，各檔塊252均具有止擔面°2仏， 以承靠對應之第二連桿264。三輪機動車200更包括兩馬 達280 ’其等係分別連接兩擋塊252。各馬達28〇係適合於 驅動對應之擋塊252轉動，而改變止擋面252a的角产（如 圖4所示），藉以調整對應之第二連桿264的作動範圍"舉 例來說，當三輪機動車200高速行駛時，檔塊252之止擋 面252a係藉由馬達280的驅動而轉至如圖3α所示之位 置，此時第二連桿264的作動範圍較大，而適用於二般騎 乘之狀況，而當三輪機動車200低速行駛時，可藉著驅動 201204587 〜TW 34987tw£doc/n 馬達280來改變止擋面252a的角度(如圖4所示）而將第二 連桿264的作動範圍限制為極小，以提升低速行駛時的^ 定性。 在本實施例中，三輪機動車200更包括第四連桿29〇, 其中第四連桿290係樞接於兩第三連桿266相互樞接處並 樞接於車體210〇本實施例中的各桿件22〇可由第一橫桿 222及第二橫桿224#互樞接而組成。第一拖接點22〇&係 • 位於第一橫桿222的一端。第二樞接點220b係位於第二橫 桿224的-端’第-橫桿222的另-端係樞接於第二橫桿 224的另一端，第二樞接點22〇c係位於第一橫桿222與第 二橫桿224的樞接處。第四連桿29〇力長度可經計算’而加 以設計，以使連桿組260於圖3A所示狀態及圖3B所示狀 態之間的過程中作動，第四連桿·係適合於限制連桿組 260的作動方式，以阻止第一橫桿222與第二橫桿224的 相對轉動’並確保兩桿件220與兩輪座23〇是以四連桿方 式作動。 釀 、综上所述’本發明的三輪機動車藉由止擔結構來限制 連桿組的作動，以對兩輪座的傾斜範圍進行控制。藉此， 當二輪機動車過寶或行經狀況不良之路面時，可避免輪座 及車體過度傾斜而發生向内傾倒的危險，提升三輪機動車 的操控性及安全枓。 雖然本發明已以實施例揭露如上，然其並非用以限定 j明’任何·技術領域中具有通常知識者，在不脫離 本發明之簡和範_，當可作鱗之更動賴飾，故本 34987twf.doc/n 201204587 發明之保護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1為本發明一實施例之三輪機動車的立體圖。 圖2A及圖2B為圖1之三輪機動車的部分構件作動流 程圖。 圖3A及圖3B為本發明另一實施例之三輪機動車的部 分構件作動流程圖。 圖4為圖3A之馬達驅動擋塊轉動的示意圖。 * 【主要元件符號說明】 100、200 :三輪機動車 110、210 :車體 120、220 :桿件 120a、220a :第一樞接點 120b、220b :第二樞接點 120c、220c :第三樞接點 φ 122、222:第一橫桿 124、224 :第二橫桿 130、230 :輪座 140、240 :後輪 150、250 :止擋結構 152 :滑槽 160、260 :連桿組 12 201204587 34987twf.doc/n 162、262 :第一連桿 162a、262a :第四樞接點 164、264 :第二連桿 166、266 :第三連桿 170 :前輪 252 :擋塊 252a :止擋面 280 ’·馬達 290 :第四連桿 D :水平方向 R :矩形 13201204587; v"vv~* ”r 34987tw£doc/n VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a motor vehicle, and in particular to a three-wheeled motor vehicle. [Prior Art] Maneuvering A motor vehicle is a vehicle that is driven by fuel or electricity, such as a common two-wheeled motor vehicle or a three-wheeled motor vehicle for people with disabilities. When a two-wheeled motor vehicle turns on a slippery or scattered gravel road Extremely slippery and dangerous. 'When a three-wheeled motor vehicle makes a sharp corner or makes an emergency dodge, it is often easy to roll over like a truck or a tour bus. - Generally speaking, Driving the enemy's recordings and techniques to avoid the risk of slipping or overturning is quite unreliable and extremely difficult to avoid. Due to different personal driving habits and experiences, the response to different and unfamiliar roads will vary. Therefore, the car accident caused by the above reasons is still heard and caused the loss of life and property of many families. In view of this, some vehicles are mostly used more complicated. Electronic sensors and actuators to improve handling to improve the above-mentioned shortcomings. However, such vehicles are expensive and prone to failure, but can only become a high-end leisure toy for the rich, and can not truly become a livelihood and benefit the limbs. The aid of the vulnerable group or the approachable daily transportation of the vulnerable group. [Abstract] 201204587 wyw^sTW 34987twf.doc/n It has better maneuverability and the present invention provides a safety of a three-wheeled motor vehicle. The utility model comprises a vehicle body, two rods, an AS rear wheel, a collision structure and a connecting rod set, and a third frame which is located at the first frame contact and the second pole connection, wherein the vehicle system and the third member of each member The joints are pivotally connected. One pivot is connected to the two first-points, and the other-wheel is connected to the second and second joints, so that the two-wheel base and the two-bar joints form a four-bar linkage mechanism. In the two-wheel seat, the stop structure is fixed to the vehicle body. The connecting rod_connected; between the vehicle body and the four-bar linkage mechanism, when the towel t is tilted, the connecting rod t will be relative to the vehicle body from the first state. Actuating to the second state, and driving the two wheel bases by the four-bar linkage mechanism, at the connecting rod In the second state, it will bear against the stop structure to limit the tilt range of the two wheel seats. In one embodiment of the invention, the two rods are substantially parallel to each other and horizontally Connected to the vehicle body and the two wheel seats, the two first pivot joints, the two second pivot joints and the two third pivot joints define a rectangle in the vertical horizontal plane projection, and the two first pivot joints The projection of the point and the two second pivot points on the plane is the four vertices of the rectangle, and the projections of the two third pivot points on the plane are respectively located on opposite sides of the rectangle. In an embodiment of the invention The above-mentioned connecting rod set includes two first connecting rods, two second connecting rods and two third connecting rods. The two first connecting rods are pivotally connected to one rod and 77 are located on both sides of the second pole joint, wherein each The first link has a fourth pivot point at an end that is away from the rod. The two first link systems are connected to the vehicle body and are respectively pivotally connected to the two fourth pivot points. The two third link systems are pivotally connected to each other and are respectively pivoted to the two fourth plug points by 34987 twf.doc/n 201204587. Two ==, and the stop structure has a chute, move, when the link set is imaginary -I is at 糸Z, there is a slider, and the slider slides in the chute. The nr 'slider of the present invention will bear the slip The end of the slot. And the above-mentioned respective rod members comprise one end of the first crossbar spear, the other end of the two crossbars of the first crossbar, the third dragging; the two poles actuating the second crossbar connecting rod_actuating mode, Miscellaneous - crossbar and the second & two fluttering i military, the shape of the Wei will not hinder the two blocks of the linkage group 1 in the second state... the second connection will be based on ^ this U - The real _ towel's upper Wei has a stop surface for the second link corresponding to #, the three-wheel axle car can be connected to two motors, each motor can drive the pair of blocks 3 and change the stop The angle of the face is adjusted to adjust the action of the second link. In an embodiment of the present invention, the three-wheeled motor vehicle further includes a fourth connecting rod, wherein the thin connecting rod is pivotally connected to the two third connecting rods (4) and is pivotally connected to the vehicle body, and each of the rods includes a first cross. Rod and second crossbar. The first point is located at one end of the first crossbar. The second pivot point is located at the second crossbar 201204587 jfW 34987twf.doc/n connected = 2 another _ connected to the other end of the second crossbar, the first system ==:: ^, the fourth link will Restricted. The first mast is rotated relative to the second rail. In one embodiment of the invention, the front wheel is attached to the front end of the vehicle body. - The wheeled motor vehicle is further controlled, checked, η, 'The three-wheeled motor vehicle of the present invention can be limited by the stop structure = r to control the tilt range of the two wheel seats. Therefore, when the vehicle is over-bent or has a bad road condition, the risk of the wheel seat and the vehicle body being excessively tilted and falling inward can be avoided. The above described features and advantages of the present invention will become more apparent and understood. [Embodiment] FIG. 1 is a perspective view of a three-wheeled motor vehicle according to an embodiment of the present invention. Figure 2 and Figure 2 are flow diagrams of some of the components of the three-wheeled motor vehicle of Figure 1. Please refer to FIG. 1 and FIG. 2A. The three-wheeled motor vehicle 1 of the present embodiment includes a vehicle body 110, two rod members 12〇, two wheel seats 13〇, two rear wheels 14〇, a stop structure 15〇, and a link group. 160 and front wheel 170. Each of the rods 120 has a first pivot point 120a, a second pivot point i20b, and a third pivot point i2〇c between the first pivot point 12〇& and the second drag point 120b. The vehicle body 110 is pivotally connected to the third pivot point 12〇c of each of the rods 12〇. One wheel seat 130 is pivotally connected to the two first pivot points 12〇a, and the other wheel seat 13〇 is 201204587 ---------/ 34987twf.doc/n is connected to the two second pivot points 120b Therefore, the two-wheel seat 130 and the two-bar member i2〇 can constitute a four-bar linkage mechanism, so that the vehicle body 110 and the wheel base 130 can be tilted by the operation of the four-bar linkage mechanism. The two rear wheels 140 are pivotally connected to the two wheel seats 130, respectively. The stop structure 150 is fixed to the vehicle body 110. The connecting rod set 16 is coupled between the vehicle body 11〇 and the four-bar linkage mechanism, and the front wheel 17〇 is framed at the front end of the vehicle body 110. The link set 160 is adapted to be moved from the state shown in Fig. 2A to the state shown in Fig. 2B with respect to the vehicle body 110, and the seat 130 is tilted by the four-bar linkage mechanism. When the link group 16 is in the state shown in Fig. 2B, it will bear against the stop structure 15A to limit the inclination range of the two wheel seats 13A. Thereby, the two-wheeled motor vehicle 100 of the present embodiment can restrict the actuation of the link set 160 by the stop structure to control the tilt range of the two wheel bases 13〇, so that the three-wheeled motor vehicle 100 can be bent or walked. When the road surface is in a bad condition, the risk of the wheel seat 130 and the vehicle body Π0 being excessively tilted and falling inward can be avoided. It should be noted that FIG. 2B shows the situation that the vehicle body 11〇 and the wheel base 13〇 are inclined to the right, and the vehicle body 110 and the wheel base 13〇 can also be tilted to the left and tilted to the left by the linkage of the link group 16〇. The manner of actuation is similar to that shown in FIG. 2B, and thus will not be described again. In detail, the two rods 160 of the embodiment are substantially parallel to each other and the horizontal direction D (}a is in the direction of the paper surface) is pivotally connected to the vehicle body HQ and the two wheel seats 130, and the two first pivotal joints Point i2〇a, two second pivot points 12% and two third pivot points 120c are projected on a plane perpendicular to the horizontal direction D to define a rectangle R, two first pivot points 12〇a and two second pivots The contact 12〇b is located on the four vertices of the projection rectangle +R on the plane, and the two third pivot points 201204587 V77VW-?j IW 34987twf.doc/n 120c are respectively located on the plane The opposite sides of the projection rectangle R are 'by the two wheel bases 130 and the two rod members 12' to constitute the four-bar linkage mechanism. In the present embodiment, the link set 160 includes two first links 162, two second links 164, and two third links ΐ6ό. The two first connecting rods 162 are pivotally connected to the rod member 120 and are respectively located at two sides of the third pivoting point 12〇c, wherein each of the first connecting rods 162 has a fourth pivoting point 162a at an end away from the rod member 12〇. The two second links 164 are pivotally connected to the vehicle body 110 and are respectively pivotally connected to the two fourth pivoting points 162a. The two third links 166 are connected to each other and are respectively pivotally connected to the two fourth pivoting points 162a. In order to achieve the action mode of FIG. 2A to FIG. 2B. In the present embodiment, the stop structure 15A has a sliding slot 152, and the two third links 166 are pivotally connected to each other by a slider 166a. The slider 166a slides in the sliding slot 152. When the link set 16A is in the state shown in FIG. 2B, the slider 166a bears against the end of the chute 152 to limit the operating range of the link set 16〇 and the two wheel bases 13〇 and the two rear wheels 14〇. Tilt range. In more detail, each of the rod members 12 of the present embodiment can be formed by pivoting the first crossbar 122 and the second crossbar 124 to each other. The first pivot point 12〇&# is located at one end of the first crossbar 122. The second pivot point 12〇1) is located at one end of the second crossbar 124, the other end of the first crossbar 122 is pivotally connected to the other end of the second crossbar 124, and the third pivotal point 120c is located at the A crossbar 122 and a second crossbar 124 are pivotally connected to each other. The shape of the chute 152 can be calculated to operate the link set 16 between the state shown in FIG. 2A and the state shown in FIG. 2B, and the chute 52 is adapted to limit the set of links 16 The action mode of the cymbal 'stops the relative rotation of the first crossbar 122 and the second crossbar 124, ensuring that the two levers 120 and the two wheel seats 13 作 are actuated in a four-bar linkage manner. 34987twf.doc/n 201204587 FIG. 3A and FIG. 3B are flowcharts showing the operation of some components of a three-wheeled motor vehicle according to another embodiment of the present invention. Referring to FIGS. 3A and 3B, in the present embodiment, the stop structure 250 includes two stops 252. The link set 260 includes two first links 262, two second links 264, and two third links 266. The two first links 262 are pivotally connected to the rods 220 at two sides of the third pivot point 22〇c, wherein each of the first links 262 is away from one end of the rod 220 and has a fourth pivot point 262a. The two second links 264 are pivotally connected to the vehicle body 21 and are respectively pivotally connected to the two fourth pivot points 262a. The two third links 266 are pivotally connected to each other and respectively pivoted to the two fourth pivot points 262a, thereby achieving the operation of FIGS. 3A to 3b. When the link set 260 is in the state shown in FIG. 3B, a second link 264 will bear against the corresponding stop block 252 to limit the operating range of the link set 26〇 and the two wheel base 230 and the two rear wheels 240. When the slope is inclined to avoid a high-speed cornering or a road surface having a high-speed passing condition, the body 21 is tilted excessively and tilted inward. 4 is a schematic view showing the rotation of the motor drive block of FIG. 3A. Referring to FIG. 3A and FIG. 4, in detail, each of the stops 252 has a stop surface 仏2仏 to bear against the corresponding second link 264. The three-wheeled motor vehicle 200 further includes two dams 280' which are respectively connected to the two stops 252. Each motor 28 is adapted to drive the corresponding stop 252 to rotate, and change the angle of the stop surface 252a (as shown in FIG. 4), thereby adjusting the actuation range of the corresponding second link 264. For example, When the three-wheeled motor vehicle 200 is traveling at a high speed, the stop surface 252a of the block 252 is rotated to the position shown in FIG. 3α by the driving of the motor 280. At this time, the second link 264 has a larger operating range, and is applicable. In the case of two-way riding, when the three-wheeled motor vehicle 200 is running at a low speed, the angle of the stop surface 252a can be changed by driving the 201204587 to TW 34987 tw. The operating range of the two links 264 is limited to a minimum to improve the accuracy at low speeds. In the present embodiment, the three-wheeled motor vehicle 200 further includes a fourth connecting rod 29, wherein the fourth connecting rod 290 is pivotally connected to the two third connecting rods 266 and pivotally connected to the vehicle body 210. Each of the rods 22 is composed of a first crossbar 222 and a second crossbar 224#. The first tow point 22〇& is located at one end of the first crossbar 222. The second pivot point 220b is located at the other end of the second crossbar 224 at the end of the second crossbar 224. The second pivot point 22〇 is located at the other end of the second crossbar 224. A pivotal link between the crossbar 222 and the second crossbar 224. The fourth link 29 force length can be calculated 'to be designed to operate the link set 260 between the state shown in FIG. 3A and the state shown in FIG. 3B, and the fourth link is adapted to limit The link set 260 is actuated to prevent relative rotation of the first crossbar 222 and the second crossbar 224 and to ensure that the two levers 220 and the two wheel seats 23 are actuated in a four-bar linkage. In the above, the three-wheeled motor vehicle of the present invention restricts the operation of the link group by the stop structure to control the tilt range of the two wheel seats. In this way, when the two-wheeled motor vehicle is over-treat or has a bad road condition, the risk of the wheel seat and the vehicle body being excessively tilted and falling inward can be avoided, and the handling and safety of the three-wheeled motor vehicle can be improved. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the general knowledge in the technical field, and the present invention can be used as a simplification. 34987twf.doc/n 201204587 The scope of protection of the invention is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a three-wheeled motor vehicle according to an embodiment of the present invention. 2A and 2B are flow diagrams showing the operation of some components of the three-wheeled motor vehicle of Fig. 1. 3A and 3B are flow charts showing the operation of a part of a three-wheeled motor vehicle according to another embodiment of the present invention. 4 is a schematic view showing the rotation of the motor drive block of FIG. 3A. * [Main component symbol description] 100, 200: Three-wheeled motor vehicle 110, 210: Car body 120, 220: Rod 120a, 220a: First pivot point 120b, 220b: Second pivot point 120c, 220c: Third Pivot joints φ 122, 222: first crossbars 124, 224: second crossbars 130, 230: wheel seats 140, 240: rear wheels 150, 250: stop structure 152: chutes 160, 260: linkage set 12 201204587 34987twf.doc/n 162, 262: first link 162a, 262a: fourth pivot point 164, 264: second link 166, 266: third link 170: front wheel 252: stop 252a: stop Face 280 '·Motor 290: Fourth link D: Horizontal direction R: Rectangular 13