M395634 五、新型說明： 【新型所屬之技術領域】 /本新型是有關於-種三輪車，特別是指—種用於改變 行進方向的三輪車的轉向裝置。 【先前技術】 參閱圖1 ,一般拖車丨可以選擇性與一自行車2連結， 藉此’做為親子互動時或載運貨物的交通載耳。 惟’由於目前市面上的拖車！主要都是附掛在自行車2 後方，因此，在騎行過程中，騎乘者除了不方便回頭觀視 幼兒或貨物的情況外，且騎乘者無法操控拖車丨的運動方 向，尤其是在轉彎時，往往必需依賴騎乘者的經驗，才能 確保拖車1不會有翻車或碰撞他物的疑慮，而有安全上的匕 疑慮。 【新型内容】 因此，本新型之目的，即在提供-種能夠操控方向， 及觀視使用狀況的三輪車的轉向裝置。 於是，該三輪車包含一後車架、拖設在該後車架一端 部的一後輪、與該後車架在一樞結點相互樞結的一前車架 ’及樞設在該前車架二侧的二前輪，本新型㈣向U包 含-執道’及至少-滑輪組。該軌道固設在該前車架，且 以該樞結點為中心依循-弧形轨跡延伸並具有相互面對 的一第一軌面與一第二軌面，及形成在該第_、第二轨面 間的-凹槽。該滑輪組滑行於該轨道，並具有— 一第一滑輪與一第二滑輪，該 柄！具有面向該凹槽的一側 3 >及"、該後車架連結且顯露在該第一軌面外的一頂壁， *二輪與該第二滑輪樞設在該側壁且分別與該第一執面 、該第二執面滑合，而形成有一位差。 ，本新型的功效是使該前車架兼具有轉向及載重的功能 利用及滑輪組與該軌道特殊的空間設計，消除滑合間 审進而旎夠提升本新型轉向時的穩定性、順暢性。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 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,及圖4，本新型三輪車的轉向裝置一 車乂佳實施例安裝在_台三輪車3。該三輪車3包含一後車架 。樞叹在該後車架3丨一後端部3丨丨的一後輪32、與該後 車架31 一前端部312在一樞結點A相互樞結的一前車架33 ，及樞設在該前車架33二側的二前輪34 。該後車架31更 具有形成在該前端部312二側的二翼板313。該轉向裝置包 含一軌道4，及二滑輪組5。 參閱圖3、圖4,及圖5,該軌道4固設在該前車架33 底面且以5亥樞結點A為中心依循一弧形轨跡延伸，並具 有概呈匚形且相互面對的一第一軌面41與一第二執面42， 及形成在該第一、第二執面41、42間的一凹槽43。 參閱圖5、圖6,該等滑輪組5分別具有—輪座5〇,及 一第一滑輪51與—第二滑輪52。該等輪座5〇分別具有面 向該凹槽43的一側壁501、與該後車架31的翼板313固結 且顯露在該第一執面41外的一頂壁502、形成在該側壁 且相對該頂壁502 -半部的一支臂5〇3，及形成在該頂 壁502另一半部的一缺口 5〇4。該側壁5〇1配合該執道4形 成有—弧度。該支臂503概呈：：形，且與該頂壁5〇2間恰 好形成供該第-轨面41通過的—間距。該第—滑輪Μ枢 設在=側壁5()1與該支臂503 且與該第一軌面41滑合 。該第二滑輪52枢設在該側壁5()1，且顯露在該缺口 5〇4 内而與該第二執面42滑合。該第_滑輪51與該第二滑輪 52形成有位差，且配合該側壁5〇1的弧度，不在同一水平 面上。 >閱圖5、圖7，及圖8，藉此，該前車架33上可以安 裝供嬰幼兒乘座的—車座6，或做為載運貨物的貨架，且騎 =時’騎乘者可以直接操控該前車架33向左或向右，使該 ^車木33以该樞結點A為中心旋動及以該等滑輪組$的 第'月輪51與該第二滑輪52，依循該轨道4的第一執面 41與該第二執面42滑移，進而能夠達到轉向的目的。 據上所述可知，本新型之三輪車的轉向裝置具有下列 優點及功效： 1本新型能夠在該前車架33上安裝供嬰幼兒乘座的 車體’或*裝載運貨物的貨帛，因此，在騎行過程中，騎 乘者可以直接觀視位於前方的嬰幼兒或貨物，及直接操控 刖車架33的運動方向’藉此，不但能夠提升三輪車的操控 性’且能夠在第—時間掌控嬰幼兒或貨物的狀況，有效提 升使用上的安全性與實用性。 M395634 2、重要的是’本新型是利用分別與該第—軌面μ 二軌面42滑合的第一滑輪51、第二滑輪52，消除與該軌 道4滑合時的間隙’進而提升本新型滑移時的穩定性、順 暢性，及大幅降低噪音值’提升使用時的舒適性。 惟以上所述者，僅為本新型之較佳實施例而已， 症以此限定本新型實施之範圍，即大凡依本新型巾 乾圍及新型說明内容所作之簡單的等效變化盥 屬本新型專利涵蓋之範圍内。 ^ ％仍 【圖式簡單說明】 圖1是一側視圖，說明-般的拖車附掛於—自行車； 圖2是一側視圖，說明本新 -較佳實施化 心—輪車的轉向裝置的 圖3是該較佳實施例的一底視圖； 圖4是該較佳實施例的—立體分解圖； 圖5是該較佳實施例的一立體組合圖； 疋。亥較佳實施例的一剖視圖； 該較佳實施例轉向時的_頂視圖；及 疋该較佳實施例安裝—車座 千座的正現圖。 M395634 【主要元件符號說明】M395634 V. New description: [New technical field] / This new type is related to a tricycle, especially a steering device for a tricycle that changes the direction of travel. [Prior Art] Referring to Fig. 1, a general trailer can be selectively coupled to a bicycle 2, thereby acting as a traffic carrier for parent-child interaction or carrying cargo. However, due to the current trailers on the market! Mainly attached to the rear of the bicycle 2, therefore, in addition to the inconvenience of the rider to look back at the child or the goods during the ride, the rider can not control the direction of the trailer, especially when turning It is often necessary to rely on the experience of the rider to ensure that the trailer 1 does not have the doubt of rollover or collision with other objects, and there are security concerns. [New content] Therefore, the purpose of the present invention is to provide a steering device for a tricycle capable of manipulating the direction and viewing the use condition. Therefore, the tricycle includes a rear frame, a rear wheel that is dragged at one end of the rear frame, a front frame that is pivoted to the rear frame at a pivotal point, and is pivoted in the front vehicle. The two front wheels on the two sides of the frame, the new (four) to U include - and the at least - pulley block. The rail is fixed on the front frame, and extends along the arc-shaped track centering on the pivot point and has a first rail surface and a second rail surface facing each other, and is formed on the first _, The groove between the second rail faces. The pulley block slides on the track and has a first pulley and a second pulley, the handle! Having a side wall 3 > and " facing the groove, the rear frame is coupled and exposed to a top wall outside the first rail surface, * the second wheel and the second pulley are pivoted on the side wall and respectively The first face and the second face are slipped together to form a one-hand difference. The function of the new model is to make the front frame have the function of steering and load, and the special space design of the pulley block and the track, thereby eliminating the slip-and-slip trial and further improving the stability and smoothness of the new steering. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to Figures 2, 3, and 4, a preferred embodiment of the steering device of the novel tricycle is mounted on the tricycle 3. The tricycle 3 includes a rear frame. A rear wheel 32 pivotally sliding at a rear end portion 3 of the rear frame 3, and a front frame 33 pivotally coupled to a front end portion 312 of the rear frame 31 at a pivot point A, and a pivot Two front wheels 34 are provided on both sides of the front frame 33. The rear frame 31 further has two flaps 313 formed on both sides of the front end portion 312. The steering device includes a track 4 and two pulley blocks 5. Referring to FIG. 3, FIG. 4, and FIG. 5, the rail 4 is fixed on the bottom surface of the front frame 33 and extends along an arc-shaped trajectory centering on the pivot point A of the 5H, and has a substantially meandering shape and mutual surface. A first rail surface 41 and a second surface 42 are formed, and a groove 43 is formed between the first and second surfaces 41 and 42. Referring to Figures 5 and 6, the pulley blocks 5 have a wheel housing 5, and a first pulley 51 and a second pulley 52, respectively. The wheel housings 5 have a side wall 501 facing the recess 43 and a top wall 502 which is fixed to the flap 313 of the rear frame 31 and is exposed outside the first surface 41. And an arm 5〇3 opposite to the top wall 502-half, and a notch 5〇4 formed in the other half of the top wall 502. The side wall 5〇1 cooperates with the way lane 4 to form a curvature. The arm 503 is generally formed in a shape of a distance from the top wall 5〇2 for the passage of the first rail surface 41. The first pulley is pivotally disposed on the side wall 5()1 and the arm 503 and is slidably coupled to the first rail surface 41. The second pulley 52 is pivotally disposed on the side wall 5()1 and is exposed in the notch 5〇4 to be slidably engaged with the second surface 42. The first pulley 51 and the second pulley 52 are formed with a level difference, and the curvature of the side wall 5〇1 is not on the same horizontal plane. > Read Fig. 5, Fig. 7, and Fig. 8, whereby the front frame 33 can be fitted with a seat 6 for the infant to ride, or as a shelf for carrying goods, and the rider = when the rider The front frame 33 can be directly manipulated to the left or to the right, so that the car wood 33 is rotated about the pivot point A and the first month wheel 51 and the second pulley 52 of the pulley block $ are followed. The first face 41 of the track 4 and the second face 42 are slid, so that the purpose of steering can be achieved. According to the above description, the steering device of the tricycle of the present invention has the following advantages and effects: 1. The present invention can install a body for the infant to ride on the front frame 33 or * load the cargo for the cargo, so During the riding process, the rider can directly view the infant or cargo in front, and directly control the movement direction of the frame 33, thereby not only improving the handling of the tricycle but also controlling the first time. The condition of infants or children can effectively improve the safety and practicability of use. M395634 2. It is important that the present invention utilizes the first pulley 51 and the second pulley 52 which are respectively slidably engaged with the first rail surface μ two rail surface 42, and eliminates the gap when sliding with the rail 4, thereby improving the present Stability and smoothness in the new slip, and a significant reduction in noise value' improves comfort during use. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is limited by this, that is, the simple equivalent change made by the present invention according to the novel towel and the new description is the present invention. Within the scope of the patent. ^ % Still [Simplified Schematic] FIG. 1 is a side view showing a general trailer attached to a bicycle; FIG. 2 is a side view showing the steering device of the new-preferred implementation of the heart-wheel vehicle Figure 3 is a bottom plan view of the preferred embodiment; Figure 4 is an exploded perspective view of the preferred embodiment; Figure 5 is a perspective assembled view of the preferred embodiment; A cross-sectional view of a preferred embodiment of the present invention; a top view of the preferred embodiment when turned; and a front view of the mounting of the preferred embodiment. M395634 [Main component symbol description]
3 ..........三輪車 31 .........後車架 311 .......後端部 312 .......前端部 313……翼板 32 .........後輪 33 .........前車架 34 .........前輪 4 ..........軌道 41 .........第一執面 42 .........第二執面 43.........凹槽 5 ..........滑輪組 50 .........輪座 501 · •….側壁 502 .......頂壁 503……支臂 504 ·……缺口 51 .........第一滑輪 52 .........第二滑輪 A..........樞結點 6 ...........車座3 .......... Tricycle 31 ......... Rear frame 311 ....... Rear end portion 312 .. Front end portion 313 ... wing Board 32 ......... Rear wheel 33 ......... Front frame 34 ......... Front wheel 4 .......... Track 41 .........the first face 42 .........the second face 43...the groove 5 .......... Pulley block 50 .... wheel base 501 · •.... side wall 502 . . . top wall 503 ... arm 504 · ... notch 51 ......... a pulley 52 .........the second pulley A.......... pivot point 6 ........... seat