1323173 九、發明說明： 【發明所屬之技術領域】 本發明係、與電動輪椅有關，更詳而言之是指—種可平 • 穩行駛於不平路面之電動輪椅。 5【先前技術】 f用電動輪椅係於車架之前、中、後端依序配置有二 祿、二驅動輪及二後輪，且該車架之左、右二側分別^ 置有-體連接成型之-前輪座與一驅動輪座，該前輪座與 該驅動輪座並分別與該前輪及該驅動輪連結，然而，由ς ίο該前輪座與該驅動輪座為一體成型之剛性結構，故將造 電動輪椅無法順利且平穩地行駛於顛簸路面；為改善1述 缺失，遂有業者將前輪座與驅動輪座分別樞設於車架之: 祕-特定距離之位置處，並於該錄賴該軸輪座: 間設置-連動組件，藉此，當該電動輪椅行歇於不平路面 丨5時，前輪座/驅動輪座可相對該車架樞擺，並透過該連動組 _ ㈣動麟輪座/前輪絲擺，_使_前脉該驅動輪 可同時維持與路面接觸，以保持車身平穩；且，該前輪座 與該驅動齡分财其與車架之間設有緩魏等吸震物 質’用以吸收震動，以使駕驶乘坐更為舒適。 20 然而，上述電動輪椅之前輪座與驅動輪座間必須藉由 複雜的連動組件連接，始可促使前輪及驅動輪同時與路面 保持接觸’然由於習用連動組件係為多數長短不一的連桿 所相互連，而成，因此各構件在設計及組配上相當複雜， 成本亦較南J_應力谷易集中在該些連桿的連接處，造成 4 與車架之間：:塊再ΐ較前輪座/奥動輪座 動力傳遞至車架近駕敬座=椅方=緩衝塊 故吸震_限，蝴駛乘座增舒適發揮吸震能 【發明内容】 本發明之主要目的在於提供 ㈣座與中輪座分 輪#係輪由將 輪座與驅動輪座的一體連接構位;二2習用前 座之間設置一彈性件，以取代習用 座與中輪 供該前輪座愈該中輪座相針复雜的連動，，且件’以提 構件心 該转_之_，是以且有 耐用H設計生產^、製作成本低、裝配維修容= T w -n rrj 二側具有:前端與-後端’且其左右 -4b,八β鈿，一對前輪組，係位於該車架前端 椅，ίί達述之目的’本發明所提供之-種電動輪 惻j 一^ ’且其等分別具有—前輪额―前輪，該前輪座具有 I—結合端與-第二結合端，該第—結合端相較該第二 20 i 口端f近該車架’該第一結合端與該車架之樞接端樞 ^加該第二結合端與該前輪接設；-對中輪組，係位於該 車架前、後端之間二側，且其等分別具有一中輪座與一中 輪’該中輪座具有-第-連接端與一第二連接端，該第一 連接^0相較該第二連接端靠近該前輪組，該第一連接端盘 該車架之樞接端樞接，該第二連接端與該中輪接設；一^ 1323173 後輪組，位於該車架後端二側；以及—對彈性件， 別設於該前輪絲财輪座之間，係提供歸輪座與該= 輪座相對該車架樞擺之緩衝0 Λ 是以’本發明之前輪組、中輪組及彈性件三者的連 結構設計係可取代習用電動輪椅之前輪座與轉輪座的剛 性連接結構及複_連動鮮結構，藉喊得構件更為精1323173 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to an electric wheelchair, and more specifically to an electric wheelchair that can be stably driven on an uneven road surface. 5 [Prior Art] f The electric wheelchair is attached to the front, middle and rear ends of the frame with two er, two drive wheels and two rear wheels, and the left and right sides of the frame are respectively Connecting the molded front wheel seat and a driving wheel base, the front wheel base and the driving wheel base are respectively coupled with the front wheel and the driving wheel, however, the rigid structure of the front wheel base and the driving wheel base is integrally formed Therefore, the electric wheelchair will not be able to travel smoothly and smoothly on the bumpy road; in order to improve the lack of the description, the manufacturer has pivoted the front wheel base and the drive wheel base to the frame: the secret-specific distance position, and The axle seat: the inter-set-linking component, whereby when the electric wheelchair rests on the uneven road surface 5, the front wheel base/drive wheel base can pivot relative to the frame and pass through the linkage group _ (4) The moving wheel seat/front wheel wire swing, _ making the front wheel of the driving wheel can maintain contact with the road surface at the same time to keep the body stable; and the front wheel seat and the driving age are divided between the frame and the frame. Wei and other shock absorbers are used to absorb vibrations to make driving more comfortable. . 20 However, the front wheel seat and the drive wheel base of the above electric wheelchair must be connected by a complicated linkage assembly, which can cause the front wheel and the drive wheel to keep in contact with the road surface at the same time. However, since the conventional linkage component is a link of most lengths and short links. Interconnected, so the components are quite complicated in design and assembly, and the cost is easier to concentrate on the connection of the connecting rods than in the south J_ stress valley, resulting in a block between the 4 and the frame: Front wheel seat / Austrian wheel base power transmission to the frame close to the seat = seat side = buffer block, so shock absorption _ limit, the butterfly rides the seat to increase the comfort to play the shock energy [invention content] The main purpose of the present invention is to provide (four) seat and middle The wheel base wheel ## is composed of an integral connection between the wheel base and the drive wheel base; and an elastic member is arranged between the second and second conventional seats to replace the conventional seat and the middle wheel for the front wheel seat. Complex linkage, and the piece 'to improve the member's heart _ _, and has a durable H design production ^, low production costs, assembly maintenance capacity = T w -n rrj two sides have: front and back End' and its left and right -4b, eight beta, a pair of front wheels, It is located at the front end of the frame, and the purpose of the present invention is to provide an electric rim and a front wheel, and the front wheel has an I-joining end and a - a second joint end, the first joint end is closer to the frame than the second 20 i port end f. The first joint end and the pivot end of the frame pivotally add the second joint end to the front wheel ;-The centering wheel set is located on the two sides between the front and the rear end of the frame, and has a middle wheel seat and a middle wheel respectively. The middle wheel base has a -first connection end and a second connection The first connection end is closer to the front wheel set than the second connection end, the first connection end plate is pivotally connected to the pivot end of the frame, and the second connection end is connected to the middle wheel; 1323173 The rear wheel set is located at two sides of the rear end of the frame; and the pair of elastic members are disposed between the front wheel and the money wheel seat, and provide a buffer for the wheel seat and the wheel seat relative to the frame pivoting 0 Λ is based on the combination of the front wheel set, the middle wheel set and the elastic part of the invention, which can replace the rigidity of the wheel seat and the wheel base before the conventional electric wheelchair. Connection structure and complex _ linkage fresh structure, better by shouting components
簡’而具有料生產容[製作成本低、裝配維修容易及 耐用等優點。 1〇【實施方式】 第一至六圖為本發明一較佳實施例之電動輪椅1〇〇，該 電動輪椅100包含有一車架10，一對中輪組20、一對前輪 組30、一對後輪組40與一對彈性件5〇，其中： 該車架10具有一前端l〇a與一後端1〇b，本實施例之 15車架10前端i〇a底部的左右二側分別朝外延伸形成一樞接 端11 ’該極接端11為一中空管體；又’該車架1〇於該樞 接端11後方設有一直立之支撐管12,係用以組設一座椅組 13 ； 各該中輪組20具有一中輪座21與一接設於該中輪座 2〇之中輪22’於本實施例中，該中輪組21係為驅動輪組，其 架構包含有一架座23與一傳動件24;請配合參照第三圖， 其中： 該架座23具有二平行之側板231、一連接該二側板 231之頂板232與一底板233，·各該側板231具有一穿 6 孔23a，於本實施例中，該二穿孔23a為位於該架座23 底部之一第一孔部，該第一孔部構成中輪座21的第一 連接端，係供該車架10之樞接端U與之形成樞接，使 該架座23可相對該車架10樞擺；又，外側之側板231 5 具有三固定孔23b ;該頂板233具有二軸孔23c，該二 軸孔23c構成位於該架座23頂部之一第二孔部； 該傳動件24具有相互組設之一馬達25與一齒輪箱 26’其中該齒輪箱26藉由多數螺栓(圖未示）穿過該些固 定孔23b而與側板231固接，該齒輪箱26具有一傳動 10 軸261所構成之中輪座21的第二連接端，該傳動轴261 與該中輪22接設’係用以驅動該中輪22轉動；該傳動 轴261位於穿孔23a後方，以使中輪22可以該樞接端 Π為支點往車架1〇前端10a方向樞擺； 各該則輪組30具有一前輪座31與一接設於該前輪座 U 31之一前輪32 ;該前輪座31具有一套管33所構成之第一 結合端，以及自該套管33往該車架1〇前方延伸之一輪架 34 ’該輪架34前端構成該前輪座31之第二結合端而與該 刖輪32樞接，組裝時，該套管33係位於該二側板231之 間’使該車架10之樞接端11得以穿過該二側板231之穿 20孔23a及該套管33而與該前輪座31形成樞接，藉以使得 該前輪組30可相對該車架1〇樞擺，又，該輪架34中段處 朝該車架10内侧突出形成一側架35，該側架35具有一第 三孔部36 ; 各該後輪組40於本實施例中係固接於該車架1〇後端 7 10b二側；當然，該後輪組40 10連接； 亦可以樞接的方式與該車架 各該彈性件5G於本實施例中係由—緩衝件51盘 縮彈簧52所構成，該緩衝件51具有—套筒53、—活、 與-調整件55 ’其中該套筒53 —端樞接於該中輪座^ 10 第二孔部(即該頂板232之二軸孔23e)，且筒身具有一外螺 、*’文面531，該活塞54 —端樞接於該侧架35之第三孔部， 另端伸入該套筒53且可相對該套筒531移動；該調^件 螺設於該套筒53之外螺紋面531上而可螺進或螺退藉以 構成該套筒53用以接抵雌縮彈簧52之抵部，該壓^彈 簧52之二端分別頂抵該調整件55與該活塞％，藉以提供 該前輪座31與該中輪座21姆該車架1〇樞擺之緩衝/、 以上即為本實施例之電動輪椅1〇〇各構件及其相關位 置之說明，接著敘述電動輪椅1〇〇之作動於後： 請參照第五、六圖所示，t代步車行駛於顚簸路面時， 以路面上之突起物101為例，代步車1〇〇之前輪32會先盥 該突起物101接觸，此時，因車體持續受該中輪22之推進] 故該前輪組30之前輪座31將以該車架1〇之樞接端u為 支點向上抬起，以帶動該前輪32爬上該突起物1〇1，以及 同時牽動該彈性件50向上抬起，此時活塞54將伸入套筒 =並擠壓該壓縮彈簧52,藉以吸收前輪32受到突起物1〇1 衝擊的能量，並抑制該壓縮彈簧52吸震後反彈時的震盪， 以減緩反彈的衝擊並麟車相平衡，^且，财輪座21 亦將被該彈性件5G連動而有下擺之勢，使該巾輪U與該 20 1323173 前輪32得以同時緊抵於路面，藉以保持車身平穩，並且可 增加中輪22的抓地力，使中輪22得以順利推進；當前輪 32通過該突起物101纟中輪22攸上該突起物ι〇ι時(參照 第六圖）’中輪座21將向上抬起，並透過該彈性件5〇吸收 5該中輪22受到該突起物101辭的能量以及連動該前輪組 30向下搞擺’使刖輪32緊抵路面，以保持車身平穩，提升 駕駛者於乘坐上的舒適性。 另一提的是，吾人可藉由螺動該緩衝件51上的調整件 55,以調整該壓縮彈簧52的彈力，藉以因應不同的駕驶者 1〇與駕魏況’錢電動倾⑽躲時健有最佳的平穩 性0 由上述了知’本發明藉由將前輪座Η與中輪座21分 別棍設於車架K)之樞接端u，以改善㈣前輪座與驅動輪 15 ^者—财狀義賴畴麵敝，且本發明於該 31與中輪座21之間設置—彈性件％，以提供該前 輪座31與該中輪座21相_車架1()減之緩衝，而無需 如習用代步車之前輪座與驅動輪座之間以複軸連動組件 =互連動的方式；是以’本發明之電動輪椅1⑼在具有 巧Ά生產谷易、製作成本低、裝配維修容易及耐 用專優點的前提下，仍可平穩行駄於顛簸的路面上，且該 件5〇並非直接接觸或靠近該麟組U，因此該彈性 ^0係可於震動力傳遞至車㈣近座椅組13之前，即將 該震動力快速吸收，以增加Μ乘坐上的舒適性。 當然’本發明之電動輪椅並不限於中輪驅動，亦可為 9 1323173 前輪或後輪驅動；而且，本實施例之彈性件、前輪組及中 輪組三者之間的連結關係亦可應用於後輪組與中輪組之 間，而彈性件亦可選用其他形式的彈簧，以扭力彈簧 (Torsion spring)為例，該扭力彈簧之一端係可接抵於該前輪 5座，另一端接抵於該中輪座，如此不僅同樣可以透過該扭 力彈簧吸收衝擊力以及連動前輪座與中輪座，而且構件 組成上將更為精簡。 午在 以上所述僅為本發明之較佳可行實施例而已，舉凡應 用本發明說明書及申請專利範圍所為之等效結構變二，: 1〇應包含在本發明之專利範圍内。 ^23173 【圖式簡單說明】 第一圖為本發明一較佳實施例之電動輪椅的側視圖。 第二圖揭示本發明上述較佳實施例之電動輪椅的前輪 座、中輪座及彈性件三者的組合立體圖。 第三圖為第二圖之立體分解圖。 第四圖為上述較佳實施例之電 時之不意圖。It has the advantages of low production cost, easy assembly and maintenance, and durability. 1A [Embodiment] The first to sixth figures are an electric wheelchair 1 according to a preferred embodiment of the present invention. The electric wheelchair 100 includes a frame 10, a pair of middle wheel sets 20, a pair of front wheel sets 30, and a first embodiment. The rear wheel set 40 and the pair of elastic members 5〇, wherein: the frame 10 has a front end l〇a and a rear end 1〇b, and the left and right sides of the bottom of the front end i〇a of the frame 10 of the present embodiment 15 Extending outwardly to form a pivotal end 11', the pole end 11 is a hollow tubular body; and the frame 1 is disposed at the rear of the pivoting end 11 with an upright support tube 12 for assembly a seat set 13; each of the middle wheel sets 20 has a middle wheel base 21 and a wheel 22' connected to the middle wheel base 2 in the embodiment, the middle wheel set 21 is a drive wheel set The structure includes a frame 23 and a transmission member 24; please refer to the third figure, wherein: the frame 23 has two parallel side plates 231, a top plate 232 connecting the two side plates 231 and a bottom plate 233, each The side plate 231 has a through hole 23a. In the embodiment, the two through holes 23a are a first hole portion at the bottom of the frame base 23. The first hole portion constitutes the middle wheel base 2 The first connecting end of the frame 1 is pivotally connected to the pivoting end U of the frame 10 so that the frame 23 can be pivoted relative to the frame 10; and the outer side plate 231 5 has three fixing holes 23b. The top plate 233 has a two-axis hole 23c, and the two-axis hole 23c constitutes a second hole portion at the top of the frame base 23. The transmission member 24 has a motor 25 and a gear box 26' which are assembled with each other. The box 26 is fixed to the side plate 231 by a plurality of bolts (not shown) passing through the fixing holes 23b. The gear box 26 has a second connecting end of the wheel base 21 formed by a transmission 10 shaft 261. The shaft 261 is connected to the middle wheel 22 for driving the middle wheel 22 to rotate; the transmission shaft 261 is located behind the through hole 23a, so that the middle wheel 22 can pivot the front end 10a toward the front end 10a of the frame 1 Each of the wheel sets 30 has a front wheel base 31 and a front wheel 32 connected to the front wheel base U 31; the front wheel base 31 has a first joint end formed by a sleeve 33, and the sleeve a tube 33 extending toward the front of the frame 1 轮 a wheel carrier 34 'the front end of the wheel frame 34 constituting the second joint end of the front wheel base 31 and the wheel 3 2 pivotally, when assembled, the sleeve 33 is located between the two side plates 231 'to make the pivot end 11 of the frame 10 pass through the 20 holes 23a of the two side plates 231 and the sleeve 33 The front wheel base 31 is pivoted, so that the front wheel set 30 can be pivoted relative to the frame 1 , and the middle part of the wheel frame 34 protrudes toward the inner side of the frame 10 to form a side frame 35 having a side frame 35 In the embodiment, each of the rear wheel sets 40 is fixed to the two sides of the rear end 7 10b of the frame 1; of course, the rear wheel set 40 10 is connected; In the present embodiment, each of the elastic members 5G of the frame is composed of a cushioning member 51, and the cushioning member 51 has a sleeve 53, a movable member, and an adjusting member 55'. The end of the piston is pivotally connected to the side of the second wheel portion (ie, the second shaft hole 23e of the top plate 232), and the barrel has an outer screw and a ''face 531' a third hole portion of the frame 35, the other end of which extends into the sleeve 53 and is movable relative to the sleeve 531; the adjusting member is screwed on the outer thread surface 531 of the sleeve 53 to be screwed or screwed back Constitute the set The cylinder 53 is configured to abut the abutting portion of the female retracting spring 52. The two ends of the pressing spring 52 respectively abut the adjusting member 55 and the piston %, thereby providing the front wheel base 31 and the middle wheel base 21. 1 〇 pivoting buffer /, the above is the description of the components of the electric wheelchair 1 及其 of the present embodiment and their related positions, and then the operation of the electric wheelchair 1 叙述 follows: Please refer to the fifth and sixth figures When the scooter is driving on the road surface, taking the protrusion 101 on the road as an example, the front wheel 32 of the scooter will contact the protrusion 101 first. At this time, the vehicle body continues to be affected by the middle wheel 22 Therefore, the wheel base 31 of the front wheel set 30 will be lifted upward with the pivot end u of the frame 1 , as a fulcrum to drive the front wheel 32 to climb the protrusion 1〇1 and simultaneously pull the elastic member 50 is lifted upward, at which time the piston 54 will extend into the sleeve = and squeeze the compression spring 52, thereby absorbing the energy of the front wheel 32 being impacted by the protrusion 1〇1, and suppressing the shock when the compression spring 52 rebounds after shock absorption. In order to slow down the impact of the rebound and balance the car, ^, the Captain 21 will also be linked by the elastic part 5G. The hem is such that the towel wheel U and the front wheel 32 of the 20 1323173 are simultaneously pressed against the road surface, thereby keeping the body smooth, and the grip of the middle wheel 22 can be increased, so that the middle wheel 22 can be smoothly advanced; the current wheel 32 passes the When the middle wheel 22 of the protrusion 101 is attached to the protrusion ι ι (refer to the sixth figure), the middle wheel base 21 will be lifted up and absorbed by the elastic member 5, and the middle wheel 22 receives the protrusion 101. The energy of the words and the linkage of the front wheel set 30 downwards make the wheel 32 close to the road surface to keep the body smooth and improve the rider's comfort in riding. It is also mentioned that the elastic force of the compression spring 52 can be adjusted by screwing the adjusting member 55 on the cushioning member 51, so as to accommodate the different drivers and the electric motor (10). The best stability is achieved by the above-mentioned knowledge. The present invention improves the (four) front wheel base and the drive wheel 15 by sticking the front wheel base and the middle wheel base 21 to the pivot end u of the frame K, respectively. The present invention is disposed between the 31 and the middle wheel base 21 - an elastic member % to provide the front wheel base 31 and the middle wheel base 21 - the frame 1 () is reduced Buffering, without the need for a multi-axis linkage assembly between the wheel base and the drive wheel base as in the conventional scooter = the way of interconnection; the electric wheelchair 1 (9) of the invention has the skill of producing the valley, the production cost is low, and the assembly Under the premise of easy maintenance and durability, it can still run smoothly on bumpy roads, and the 5〇 is not in direct contact with or close to the Lin U, so the elastic ^0 can be transmitted to the vehicle with vibration force (4) Immediately before the seat group 13, the vibration force is quickly absorbed to increase the comfort of the ride. Of course, the electric wheelchair of the present invention is not limited to the middle wheel drive, and may be 9 1323173 front wheel or rear wheel drive; moreover, the connection relationship between the elastic member, the front wheel set and the middle wheel set of the present embodiment can also be applied. Between the rear wheel set and the middle wheel set, and other types of springs may be used for the elastic member. For example, a Torsion spring is adopted. One end of the torsion spring can be connected to the front wheel 5, and the other end is connected. In contrast to the middle wheel base, not only can the impact spring be absorbed by the torsion spring, but also the front wheel base and the middle wheel base can be linked, and the component composition will be more streamlined. The above is only the preferred embodiment of the present invention, and the equivalent structure of the present invention and the scope of the patent application are as follows: 1 〇 should be included in the patent scope of the present invention. ^23173 BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a side view of an electric wheelchair in accordance with a preferred embodiment of the present invention. Fig. 2 is a perspective view showing the combination of a front wheel housing, a center wheel housing and an elastic member of the electric wheelchair according to the above preferred embodiment of the present invention. The third figure is an exploded perspective view of the second figure. The fourth figure is not intended to be used in the above preferred embodiment.
動輪椅行駛於平坦路面 動輪椅的前輪行駛於突 動輪椅的中輪行駛於突 第五圖為上述較佳實施例之電 起路面時之示意圖。 第六圖為上述較佳實施例之電 起路面時之示意圖。 11 1323173 【主要元件符號說明】 10 車架 11 樞接端 20 中輪組 5 23 架座 233底板 23c轴孔 • 24 傳動件 261傳動軸 ίο 30 前輪組 33 套管 36 第三孔部 40 後輪組 50 彈性件 15 53 套筒 54 活塞 100電動輪椅 前端 10b 後端 支撐管 13 座椅組 中輪座 22 中輪 側板 232 頂板 穿孔 23b 固定孔 馬達 26 齒輪箱 前輪座 32 前輪 輪架 35 側架 緩衝件 52 壓縮彈簧 外螺紋面 調整件 突起物 12The wheelchair is driven on a flat road. The front wheel of the wheelchair is driven by the middle wheel of the emergency wheelchair. The fifth figure is a schematic view of the electric road surface of the above preferred embodiment. Fig. 6 is a schematic view showing the electric field of the above preferred embodiment. 11 1323173 [Description of main component symbols] 10 Frame 11 Pivot end 20 Middle wheel set 5 23 Rack 233 Base plate 23c Axle hole • 24 Transmission 261 Drive shaft ίο 30 Front wheel set 33 Bushing 36 Third hole 40 Rear wheel Group 50 Elastic member 15 53 Sleeve 54 Piston 100 Electric wheelchair front end 10b Rear end support tube 13 Seat group Middle wheel base 22 Middle wheel side plate 232 Top plate perforation 23b Fixed hole motor 26 Gear box front wheel seat 32 Front wheel carrier 35 Side frame buffer Piece 52 compression spring external thread surface adjustment member protrusion 12