1246420 八、發明說明： 【發明所屬之技術領域】 、去册=、\明係有關—種動力傳動機構，尤指，種以單-馬 :当：认速,明動二傳動輪，且能伸縮調整代步工具之二 、二距離’亚具差速效果之動力傳動機構。 【先前技術】 ^ ’代步工具讓許多殘障人士或不良於行的年邁者坐 二了上以輪椅為例，須藉助自己雙手推動座椅兩侧之 而ί輪椅能前進或者後退 '然此種移動方式對於身 虛弱’或者因疾病、創傷導致手部無法自行施力進行移 :的使?者^無法適用；因此，坊間關發所謂電動輪 如弟4圖所示，此種電動輪椅為使得其其易於攜帶， 而^有可收合之功能，所以主要係在座椅下方設二傳動機 構7，而各傳動機構主要係於各傳動輪7丄設置一馬達7 2及減速機構7 3，俾構成行進動力之來源；由於此種 馬達7 2並非變頻式馬達或伺服馬達，而使用直流碳刷馬 達主要係為降低成本，但是一般的直流馬達額定轉速固 疋，且轉速較高，而二傳動輪7 1於行進轉彎時須有不同 之轉速，且速度必須降低，方能使轉彎順利，而不傾倒， 因此即須以減速機構進行減速；但是為了控制二馬達7 2 產生不同的轉速，以利轉向，則須以複雜的驅動電路（圖 中未示）來控制；雖然此穆機構可達到操控方便之目的， 但是複雜的驅動電路及使用二個馬達、二個減速機構皆使 得其製造成本較高，使得事面上價格居高不下，無法普及 1246420 到殘障人士與行動不便者，因此，習用之輪椅實有改良之 必要。 【發明内容】 …本發明之主要目的，在於解決上述的問題而提供一種 式之動力傳動機構，藉由動力裝置之差速器，得以使 $馬達所產生之動力得以傳遞至該二側之傳動輪，以減 =馬達之使賴量，謂㈣低成本；且傳軸力至連動 齒軸’更可縮入連動裝置與該動力裝置中，使收藏 不佔體積。 本發明之次—目的，在㈣向時藉由煞車器控制二傳 : 使其產生差速效果，並免去使用複雜驅動電 且…、車态亦可行進時煞車使用。 之門的，本發明係設於代步卫具之二傳動輪 之:;Γ:Ϊ 其中，該傳動機構係包含-預定長度 ^軸’《軸二端分別接設—動力裝置及—連動I置， 裝置分別連結至該代步工具之其中 值^該動力裝置㈣設有—差速11，該差速ϋ係由-馬、f 傳動，该差逮器之二侧分別延^申透 ’、…達 筮一认* 甲還出至動力裝置外部之一 輸出軸套及一第二輸出軸套，其中 :第-輸出軸套係與齒轴伸瞻，而另端之第::則 套則與傳動輪相接合； 之弟一輸出軸 該連動裝置内部具—中空之㈣， 傳動輪相接合，哕舳其、土 ♦ 而贫另一 該轴官遂離傳動輪之—端内側面設内齒俾 1246420 與该齒轴相售合。 本發明之上述及其他目的與優點，不難從下述所選用 貝施例之洋細說明與附圖中，獲得深入了解。 當然，本發明在某些另件上，或另件之安排上容許有 所不同，但所選用之實施例，則於本說明書中，予以詳細 說明，並於附圖中展示其構造。 【實施方式】 —μ苓閱第1圖至第3圖，圖中所示者為本發明所選用 之實施例結構，此僅供說明之用，在專利申請上並不受血 種結構之限制。 &本貫施例之伸縮式之動力傳動機構，其係於代步工具 你m J帛1目及帛2目所7^，本實施例係以電動輪椅為 二禮木5之座椅（圖中未示）下方及二傳動輪5 1之間 構工，其中，該傳動機構1係包含-預定長度 2 ^分:，2外部套設有—防塵套21，且該齒轴 而刀別接设一動力裝置3及一連動裝置4; 外部=力，置3内部設有—差速器31，該差速器Η 設有^螞輪3^Ϊ311，該主動輪轂311—側同軸 蜗桿3 3則姓a 媧輪3 2亚與—媧桿3 3相屬合，該 另外，兮動力二至於一設於動力裝置3外部之馬達3 4 ; 架^;置:之一側面設一固定座35，俾供與車 動力裝置之二侧分別延伸-透出至 1 3，其中接、斤、二一 3 1 2、第二輸出軸套3 、中接近相裝置4-侧之第—輸出轴套3丄2之 1246420 篦一二’數内齒316，得與齒轴2相，合，*另端之 轴矣=轴套3 1 3則與傳動輪5 1相接合，並於該輸出 片？ 2於動力裝置3與傳動輪5 1之間設有-第-碟 部之4器係由固定於該動繼3外 動裝置4内部具-中空之軸管4 1，該軸管4 1 =另-傳動輪51相接合，在該軸管41遠離傳動輪 二側面？内齒411俾與該齿轴2相，合，且在 該連動裝置1 部外側套設-彈簧4 2，在 另外，該二 一第m 。衣置4與傳動輪5 1之間設有 係以==生轉::，動咖 之轉速)’才不致產t::::動:轉動輪 =行轉向’而是以主動輪(即本案之傳動:：前 Ϊ： 第-碟片3:4;或 如此該差速器3 1即產生差、#个 1力，使其減速， ，讓内外側輪之轉速不等’彳·^使輪椅在轉彎時 請參閱第3圖所示利完成終 田奴收合時，則可將整組傳動機 1246420 構1往内侧收靠，即，該動力裝置3與該連動裝置4接近 收=，亚藉由推力促使該齒軸2二端伸入該連動裝置4之 軸吕4 1與差速益3 1之第二輸出軸套3 1 3與傳動輪5 1相接合處底端，以節省收藏之體積。 綜合上述，本發明藉由動力裝置3之差速器31，得 以使單-馬達3 4所產生之動力得以傳遞至該二侧之傳‘ 輪5 1 ’以減少馬達之使用量，'並藉以降低成本。且於騎 向時，藉由煞車器3 1 5、4 1 3控制二傳動輪5丄之； 速i使其產生差速效果’並免去使用複雜轉電路，且煞 車器3 1 5、4 1 3亦可行進時煞車使用。更甚者，傳^ 動力至連動裝置4之絲2，更可縮人連動裝置4與該 力裝置3中，使收藏不佔體積。 ” μ 以上所述實施例之揭示係用以說明本發明，並非用以 ，制本發明，_凡触之變更或料元件之 屬本發明之範疇。 由以上詳細說明，可使熟知本項技藝者明瞭本發 2達成前述目的，實已符合專利法之蚊，爰提出專利 曱睛。 【圖式簡單說明】 第1圖係本發明設置於代步工具之示意圖。 第2圖係第1圖之2 — 2剖視示意圖。 第3圖係本發明之收合實施示意圖。 第4圖係習用之代步工具傳動機構示意圖。 【圖號說明】 1246420 (習用部分） 傳動機構7 馬達7 2 (本發明部分） 傳動機構1 齒轴2 動力裝置3 差速器3 1 第一輸出軸套312 第一碟片3 1 4 内齒3 1 6 媧桿3 3 固定座3 5 連動裝置4 内齒4 1 1 煞車器4 1 3 固定座4 3 車架5 傳動輪5 1 傳動輪7 1 減速機構7 3 防塵套2 1 差速器3 1 主動輪毅3 1 1 第二輸出轴套3 1 3 煞車器3 1 5 蝸輪3 2 馬達3 4 轴管4 1 第二碟片4 1 2 彈簧4 21246420 VIII. Description of the invention: [Technical field to which the invention belongs], to the book =, \ Ming system related - a kind of power transmission mechanism, especially, a kind of single-horse: when: speed, Mingdong two transmission wheel, and can The telescopic adjustment travel tool is the second and second distance power transmission mechanism of the sub-differential effect. [Prior Art] ^ 'The travel tool allows many people with disabilities or those who are not good at walking to sit on a wheelchair. For example, you must use your own hands to push the sides of the seat and the wheelchair can move forward or backward. The way of moving is weak for the body's weakness or the hand can't exert its own force due to illness or trauma: the driver can't apply it; therefore, the so-called electric wheel is shown in Figure 4, this kind of electric wheelchair makes The utility model is easy to carry, and has the function of being collapsible. Therefore, the second transmission mechanism 7 is mainly disposed under the seat, and each transmission mechanism is mainly provided with a motor 7 2 and a speed reduction mechanism 7 3 on each of the transmission wheels 7 .俾 constitutes the source of the driving power; since the motor 7 2 is not a variable frequency motor or a servo motor, the DC carbon brush motor is mainly used to reduce the cost, but the general rated speed of the DC motor is fixed and the rotational speed is high, and The transmission wheel 7 1 must have different rotation speeds when traveling, and the speed must be reduced, so that the turning can be smooth without dumping, so the speed reduction mechanism must be used; however, in order to control two Up to 7 2 to produce different speeds for steering, it must be controlled by a complex drive circuit (not shown); although this mechanism can achieve convenient control, but the complex drive circuit and the use of two motors, Both speed reduction mechanisms make the manufacturing cost high, which makes the price of the event high, and it is impossible to popularize 1246420 to the disabled and the inconvenient. Therefore, the wheelchair used in practice is necessary for improvement. SUMMARY OF THE INVENTION The main object of the present invention is to solve the above problems and provide a power transmission mechanism in which the power generated by the motor can be transmitted to the two sides by the differential of the power unit. The wheel is reduced by the amount of the motor, that is, (4) low cost; and the axial transmission force to the interlocking gear shaft 'can be retracted into the linkage device and the power device, so that the collection does not occupy the volume. The second purpose of the present invention is to control the second pass by the brake device in the (4) direction: to make the differential effect, and to avoid the use of complex drive power and ..., the vehicle state can also be used while traveling. The door of the present invention is provided in the second transmission wheel of the travel aid:; Γ: Ϊ wherein the transmission mechanism includes a predetermined length ^ axis 'the two ends of the shaft are respectively connected - the power device and the linkage I The device is respectively connected to the median value of the traveling tool. The power device (4) is provided with a differential speed 11. The differential speed is driven by a horse and a f, and the two sides of the differential device are respectively extended by a ', ... A 还 筮 * 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲 甲The transmission wheel is engaged; the output shaft of the rotor is hollow (4), the transmission wheel is engaged, the 传动, the soil ♦ and the other axis is away from the transmission wheel.俾 1246420 is sold with this pinion. The above and other objects and advantages of the present invention are readily apparent from the following detailed description of the embodiments of the invention. Of course, the invention may be varied on certain components, or in the arrangement of the components, but the selected embodiments are described in detail in the specification and their construction is shown in the drawings. [Embodiment] - FIG. 1 to FIG. 3 are shown in the figure, which is the structure of the embodiment selected for the present invention, which is for illustrative purposes only, and is not limited by the blood structure in the patent application. . & The telescopic power transmission mechanism of the present embodiment is based on the travel tool you are J J1 1 and 帛 2 mesh 7 ^, this embodiment is based on the electric wheelchair as the seat of the second gift wood 5 (Figure Between the lower and the second transmission wheel 5 1 , the transmission mechanism 1 includes a predetermined length of 2 ^ minutes: 2 is externally provided with a dust jacket 21, and the gear shaft is connected A power unit 3 and a linkage device 4 are provided; external = force, and the inside of the unit 3 is provided with a differential 31, the differential unit 设有 is provided with a wheel 3 Ϊ 311, and the driving wheel hub 311 is a side coaxial worm 3 3, surname a 娲 wheel 3 2 ya and 娲 mast 3 3 phase, in addition, 兮 power 2 to a motor 3 4 located outside the power unit 3; frame ^; set: one side of a fixed seat 35. The two sides of the power supply and the power unit of the vehicle are respectively extended to -1, wherein the connection, the jin, the second one 3 1 2, the second output sleeve 3, and the first output shaft of the middle side of the phase device 4 The set of 1246420 丄12's internal tooth 316 has to be combined with the pinion 2, the other end of the shaft 矣 = the sleeve 3 1 3 is engaged with the transmission wheel 5 1 , and the output piece ? 2, between the power unit 3 and the transmission wheel 51, a fourth-disc portion is provided by a hollow shaft tube 41 fixed to the external actuator 4, and the shaft tube 4 1 = In addition, the transmission wheel 51 is engaged, and the shaft tube 41 is away from the two sides of the transmission wheel. The inner teeth 411 are engaged with the pinion 2, and a spring 4 2 is sleeved on the outer side of the interlocking device 1, and the other is mth. Between the clothing 4 and the transmission wheel 5 1 is set to == Shengteng::, the speed of the mobile coffee) 'Do not produce t:::: move: turn the wheel = turn steering' but with the drive wheel (ie The drive of this case:: front Ϊ: first-disc 3:4; or so the differential 3 1 produces a difference, #1 force, causing it to decelerate, so that the inner and outer wheels rotate at different speeds 彳·^ When the wheelchair is turned, please refer to the figure 3 to complete the closing of the final slave. Then, the whole set of conveyor 1246420 can be placed on the inner side, that is, the power unit 3 is close to the linkage device. , by the thrust, the two ends of the pinion 2 are extended into the bottom end of the joint shaft 4 of the linkage device 4 and the second output bushing 3 1 3 of the differential gear 3 1 and the transmission wheel 5 1 to In view of the above, the present invention enables the power generated by the single motor 34 to be transmitted to the two sides of the 'wheel 5 1 ' by the differential 31 of the power unit 3 to reduce the use of the motor. Quantity, 'and thereby reduce the cost. And in the riding direction, control the two transmission wheels 5 by the brakes 3 1 5, 4 1 3; speed i makes it produce a differential effect' and eliminate the use of complex circuit, And The vehicle 3 1 5, 4 1 3 can also be used while driving. Even worse, the power is transmitted to the wire 2 of the linkage device 4, and the linkage device 4 and the force device 3 are further reduced, so that the collection does not occupy the volume. The above description of the embodiments is intended to illustrate the invention, and is not intended to be used in the context of the invention, and is intended to be within the scope of the invention. The skilled person understands that the present invention has achieved the above-mentioned purpose, and has already met the patent law of the mosquito, and has proposed a patented eye. [Simplified illustration of the drawing] Fig. 1 is a schematic view of the present invention installed in a walking tool. Fig. 2 is a first figure Fig. 3 is a schematic view of the folding implementation of the present invention. Fig. 4 is a schematic diagram of a conventional transmission tool transmission mechanism. [Description of the figure] 1246420 (customized part) transmission mechanism 7 motor 7 2 (this Invented part 1 Transmission mechanism 1 Shaft 2 Power unit 3 Differential 3 1 First output bushing 312 First disc 3 1 4 Internal tooth 3 1 6 Mast 3 3 Mounting seat 3 5 Linking device 4 Internal tooth 4 1 1 Brake 4 1 3 Fixing seat 4 3 Frame 5 Drive wheel 5 1 Drive wheel 7 1 minus Speed mechanism 7 3 Boots 2 1 Differential 3 1 Drive wheel 3 1 1 Second output bushing 3 1 3 Brake 3 1 5 Worm gear 3 2 Motor 3 4 Shaft tube 4 1 Second disc 4 1 2 Spring 4 2