M250651 捌、新型說明： 【新型所屬之技術領域】 本創作係一種電動輪椅之離合式減速器，其係涉及於 交通車輛的技術領域，尤指電動輪椅安裝的電動式減速器 具有離合設計’而可在電力喪失之時，也能順利推動輪椅 〇 【先前技術】 按由電動輪椅會在連結輪子的輪軸安裝馬達以及齒輪 減速機構，透過馬達輸出的電動力經由減速而傳動輪子， 帶動輪椅前進，而該公告於九十二年十二月二十一日，公 告編為五六八0二六號的「電動車之減速器結構」新型專 利案〔下稱：參考案〕，主要係將減速器殼體頂端設一連 結部與車架連結’殼體底端設有組設口，以利減速器等構 件經組設口安裝於内，並在組設口設置一封蓋予以封閉。 惟，參考案將組設口設置於殼體底端，當外加的黃油 或潤滑油等注入減速機構之後，油潰會由封蓋與組設口之 縫隙渗漏’造成地面之辦污； 尤其，參考案的設計由於僅是電動馬達驅動減速機構 帶動輪子，故而電動力喪失之時，無法推動減速機構傳動 輪子，只得多人搬運，相當不方便。 【新型内容】 本創作者有鑑於前述電動輪椅適用的減速器仍然存在 的問題’因此開發出一種電動輪椅之離合式減速器，俾提 供防油滲漏於外，以及對減速機構提供離合設計，俾能電 5 動力：失而可在空播順利推車’為其主要創作目的。 段伟：於：達到别述的發明目的，本創作所運用的技術手 又係供-種電動輪椅之離合式減速器，其係、包括： 可*裝在車架的本體，該本㈣D朝上，於開口設 有一用以開啟、封閉的頂蓋； 減速齒輪機構，該減速齒輪機構係安裝於本體内， 減速齒輪機構包含-柩穿於本體内的動力# H㈣ 於本體内的輪軸’以及一穿套於輪軸上的傳動輪，該動力 軸設有蜗桿部’該輪轴—段設有方栓㈣，在相鄰方检轴 部之處係活動穿裝該傳動輪，該傳動輪外部形成用以直交 蝸桿部的蝸齒，内環面係形成 内鉤齒； 一撥桿，該撥桿一端位於頂蓋之外，另一端為推腳， 該推腳以可轉動型態穿裝於頂蓋而進入本體内，該推腳之 末端往一側為傾斜狀的推控端； 一離合齒輪，該離合齒輪一端形成相應與傳動輪内鉤 齒嚙合的齒部，該端為中空狀而於内壁形成與方栓軸部軸 向滑動配合的方栓槽，相應齒部另一端面形成抵肩，供推 控端接觸而為其撥動，控制離合齒輪與傳動輪嚙合或不嚙 合，離合齒輪與本體相對端之間，於輪軸外側套裝一彈性 件。 本創作可以獲得的功效係如下所列： 1、本創作設置離合齒輪與撥桿，配合傳動輪與輪轴 為鬆配合型態，讓輪椅在電動力喪失之時，仍能由推動輪 椅之力量讓輪子及輪轴轉動，仍在空檔狀態順利推車，讓 M250651 使用者的使用選擇更為便利。 2、 常態時’離合齒輪與傳動輪的内鉤齒嚙合，傳動 輪又由蝸齒與蝸桿部嚙合，雙重齒面嚙合，傳動效率更為 精確而可大幅降低嗓音。 3、 本體底部為封閉面，頂面始為頂蓋封閉開口，因 此注入潤滑的機油，本體不會有縫隙使其滲漏於外甚至污 染地面’免除電動輪椅使用的後續麻煩與不方便。 【實施方式】 本創作係一種電動輪椅之離合式減速器，請參看第一 圖，其係包括一安裝在車架（6〇)的本體（1〇)，以 及於本體（1 〇 )内安裝減速齒輪機構，以及在本體（工 〇)安裝一撥桿（40)以及一與減速齒輪機構離合的離 合齒輪（5 0 )。 進一步復由第一至三圖說明各部關係位置及其構件型 態，其中，該本體（丄〇 )係開口（丄i )朝上、斷面為 近u形，帛口（工丄）處設有一頂蓋（i 5 )配合螺鎖封 閉，因此便可避免潤滑機油滲漏至地面，而該頂蓋（丄5 )設有-沈頭孔（工6 )，該本體（工〇 )内安裝一減速 齒輪機構，頂i ( i 5 )頂面並供車架（6 〇 )鎖設而連 結， 该減速齒輪機構係包含一柩穿於本體（丄〇 )内的動 力軸（21) ’以及一樞穿於本體（1〇)内的輪軸（3 0)以及一穿套於輪軸（30)上的傳動輪（35); 該動力轴（21)上形成蜗桿部（211)，—端穿出本 7 )處係與電動馬達（2 3〇)一段設為太;連1驅動，而輪軸（ °又為方栓軸部（3 1 )，相翻士 1 )係以鬆配合公差Φ ^ ^ 鄰方栓軸部（3 1 口么差穿裝該傳動輪（35), 另一端穿出本體（1Π、走# ^ )輪軸（30) 0 )處係與輪子（3 、 該傳動輪（3 5 )孫户从® )連…固定’ 、J b )係在外環面形成蝸齒 直交該動力轴（91、 51)’用以 動力軸（21)的堝桿部（211) 5 )之内環面則形成内鉤齒（3 5 2 ). 該撥桿（4 0 )係進一步包括一 ’ .A ^ ^ 柄套(41)以及一 :套（41)穿固的推腳（43)，推腳（43)末端 在-側呈傾斜狀的推控端（431)，推聊（43)在推 控端（4 3 1 )之上橫穿一銷（4 4 )， 面相對銷（44)位置，凹設一設定圓弧範圍的缺槽（1 7) ’用以控制撥桿（4〇)轉動行程；因此組合時，推 腳（4 3 )由沈頭孔（丄6 )底面往上穿出頂蓋（丄5 ) ，撥桿（4 0 )復利用推腳（4 3 )上端穿套一小彈酱（ 42)，使其壓抵於沈頭孔（16)，小彈簧（42)另 端則受到該套裝在推腳（4 3 )之上的柄套/( 4 i )底端 面壓抵，讓撥桿（4 0 )每在定位狀態，都能為小彈簧（ 4 2 )的彈性回復力頂掣，較不會被輕易撥離，撥桿（4 0 )利用銷（4 4 )防止推腳（4 3 )往外脫離；以及 該離合齒輪（50)，請參看第二、四圖，離合齒輪 (5 0) —端形成相應與傳動輪（35)内鉤齒（352 )响合的齒部（5 1)，該端為中空狀而於内壁面形成方 栓槽（52)，俾與輪轴（3〇)的方栓軸部（31)形 M250651 成軸向滑動配合，相應齒部（5 ]〉 較大的環面狀抵肩（53)，抵肩）（=㈣係形成外徑 觸以受推控端（4 3 1 )撥控，用 所在位置係接 )與傳動輪（35)4合或不嗜人，/離合齒輪（50 …體相對端之間，：二 -彈性件（5 5 )，透過彈性件（5 外側套裝 50)而可快速回位。 （55)推抵離合齒輪( 使用實施時，如第一、二、 ⑴保持常態輸出電力時，帶動=不，當電動馬達（ 螞桿部（211)1交該傳動輪 丄)利用其M250651 新型 Description of the new type: [Technical field to which the new type belongs] This creation is a clutch type reducer for an electric wheelchair, which relates to the technical field of transportation vehicles, especially an electric reducer installed in an electric wheelchair with a clutch design. When the power is lost, the wheelchair can be pushed smoothly. [Previous technology] According to the electric wheelchair, a motor and a gear reduction mechanism are installed on the axles connecting the wheels. The electric power output by the motor drives the wheels through deceleration to drive the wheelchair forward. And the announcement was published on December 21, 1992, and the new patent case (hereinafter referred to as the "reference case") for the "Reduction Gear Structure of Electric Vehicles" was compiled as No. 568026. A coupling portion is provided at the top end of the housing to connect with the frame. A housing setting opening is provided at the bottom end of the housing to facilitate the installation of reducers and other components through the housing opening, and a cover is provided at the housing opening to close it. However, in the reference case, the group setting port is set at the bottom end of the housing. After the extra butter or lubricating oil is injected into the speed reduction mechanism, the oil collapse will leak through the gap between the cover and the group setting port, causing the ground to be polluted; especially The design of the reference case is because only the electric motor drives the reduction mechanism to drive the wheels, so when the electric power is lost, the reduction mechanism cannot be pushed to drive the wheels, and only a large number of people carry it, which is quite inconvenient. [New content] In view of the existing problems of the gear reducer applicable to the aforementioned electric wheelchair, the creator has developed a clutch type reducer for an electric wheelchair, which provides oil leakage prevention and a clutch design for the reduction mechanism.俾 Nengdian 5 Power: Strolling smoothly in the air, 'for its main creative purpose. Duan Wei: Yu: To achieve the other purpose of the invention, the technical hand used in this creation is a clutch-type reducer for electric wheelchairs, which includes: The body that can be installed in the frame. A reduction gear mechanism is installed in the body, and the reduction gear mechanism includes-柩 Through the power inside the body # H㈣ Wheels in the body 'and A transmission wheel is sleeved on a wheel shaft. The power shaft is provided with a worm part. The wheel shaft-section is provided with a square bolt. The transmission wheel is movably mounted adjacent to the shaft inspection section. The transmission wheel The outer part is formed with worm teeth orthogonal to the worm part, and the inner ring surface is formed with inner hook teeth. A shift lever, one end of which is located outside the top cover, and the other end is a push foot. The push foot is rotatable. Entering the body from the top cover, the end of the push foot is an inclined push-control end toward one side; a clutch gear, one end of which forms a tooth portion corresponding to the inner teeth of the transmission wheel, and the end is hollow The inner wall forms an axial sliding fit with the shaft of the square bolt Square bolt groove, the other end of the corresponding tooth part forms a shoulder for the push and control end to contact to switch it, control the clutch gear to engage or not mesh with the transmission wheel, between the clutch gear and the opposite end of the body, set a Elastic pieces. The effects that can be obtained in this creation are as follows: 1. This creation sets the clutch gear and the lever, and the driving wheel and the axle are loose-fitted, so that when the electric power is lost, the wheelchair can still be pushed by the power of the wheelchair. Allow the wheels and axles to rotate, and the cart is still smoothly in the neutral state, making the use of M250651 users more convenient. 2. In the normal state, the clutch gear meshes with the internal hook teeth of the transmission wheel. The transmission wheel is meshed with the worm gear and the worm part. The double tooth surface meshes, the transmission efficiency is more accurate and the voice can be greatly reduced. 3. The bottom of the body is a closed surface, and the top surface is the top cover to close the opening. Therefore, when the lubricating oil is injected, there will be no gaps in the body to leak out or even contaminate the ground. [Embodiment] This creation is a clutch type retarder of an electric wheelchair. Please refer to the first figure, which includes a body (10) installed in a frame (60), and installed in the body (100). A reduction gear mechanism, and a lever (40) and a clutch gear (50) that is disengaged from the reduction gear mechanism are installed on the body (work). Further, the relationship positions and component types of each part are explained from the first to third figures. Among them, the body (丄 〇) has an opening (丄 i) facing upward, a cross section of which is nearly u-shaped, and a mouth (工 丄) is provided. A top cover (i 5) is closed with a screw lock to prevent leakage of the lubricating oil to the ground. The top cover (丄 5) is provided with a countersink (work 6) and installed in the body (work 0). A reduction gear mechanism, top i (i 5) is connected to the top surface of the frame (60) by locking, and the reduction gear mechanism includes a power shaft (21) 'penetrated in the body (丄 〇) and A wheel shaft (30) pivoted in the body (10) and a transmission wheel (35) threaded on the wheel shaft (30); the power shaft (21) forms a worm part (211),-end The section 7) is connected with the electric motor (2 30). It is set to be too long; even 1 drive, and the wheel shaft (° is the square bolt shaft (3 1), phase 1) is loose fit tolerance Φ ^ ^ Adjacent to the pin shaft (3 1 mouth), the transmission wheel (35) is worn, and the other end is out of the body (1Π, walking # ^), and the wheel (30) 0 is connected with the wheel (3, the transmission wheel (3 5) Sun Hucong ®) company The fixed ', J b) are formed on the outer ring surface with worm teeth orthogonal to the power shaft (91, 51)' and the inner ring surface of the pot shaft portion (211) 5 of the power shaft (21) forms inner hook teeth ( 3 5 2). The lever (40) further includes a '.A ^ ^ handle sleeve (41) and a: the sleeve (41) has a solid push foot (43), and the end of the push foot (43) is at- A slanted push control terminal (431), push chat (43) traverses a pin (4 4) above the push control terminal (4 3 1), and faces the position of the pin (44) in a recessed setting circle The notch (1 7) in the arc range is used to control the turning stroke of the lever (4〇); therefore, in combination, the pusher foot (4 3) passes through the top cover (丄 5) upward from the bottom of the countersunk hole (丄 6). ), The lever (4 0) reuses the upper end of the push foot (4 3) to put a small bullet sauce (42) so that it presses against the countersunk hole (16), and the other end of the small spring (42) is subjected to the set The bottom end surface of the handle sleeve / (4i) above the pusher foot (4 3) is pressed against, so that each time the lever (40) is in the positioning state, the elastic restoring force of the small spring (4 2) can be pressed, Less likely to be detached, the lever (40) uses a pin (44) to prevent the push foot (43) from coming out; and The clutch gear (50), please refer to the second and fourth figures. The end of the clutch gear (50) forms a tooth portion (51) corresponding to the internal hook teeth (352) of the transmission wheel (35). The end is hollow. A square bolt groove (52) is formed on the inner wall surface, and the 俾 and the square bolt shaft portion (31) of the wheel shaft (30) are shaped as M250651 to slide axially. Abutting the shoulder (53), abutting the shoulder) (= the outer diameter is formed by the push-control end (4 3 1) dialed and connected with the position) and the drive wheel (35) is 4 or not inviting, Clutch gear (50… between the opposite ends of the body: two-elastic pieces (5 5), can be quickly returned through the elastic pieces (5 outside set 50). (55) Push the clutch gear (when using the implementation, such as the first, second, and ⑴ keep the normal output power, drive = no, when the electric motor (Mao (211) 1 to the transmission wheel 丄) use it
)轉動，1配合内鉤齒（3 5 2 )二=齒“I 齒部（川喃合，離合齒輪（5〇烏齒輪（5〇)的 一起轉動，因此動力軸（2 i ； r R n X m ^ ^ ^所又動力便透過離合齒輪 (50)驅動輪軸（3〇)及其輪子q 輪椅便可自動行走； ’電動 反之’如第四、五圖所示，如果電動馬達（2〇)的 電力喪失，則可轉動撥桿（ 、 =:角在轉動之時，在推碰抵肩（53)而對之二 :軸向位移’令離合齒輪（50)沿方栓軸 動並壓縮彈性件（ς ς ^ } n) Rotation, 1 cooperates with the internal hook tooth (3 5 2), 2 = tooth "I, the tooth part (Chuan Nang, clutch gear (50 Wu gear (50)) rotates together, so the power shaft (2 i; r R n X m ^ ^ ^ The power is driven by the clutch gear (50) to drive the axle (3〇) and its wheels q The wheelchair can walk automatically; 'Electric converse' is shown in Figures 4 and 5, if the electric motor (2〇 ) Loss of power, you can turn the lever (, =: when the angle is rotating, push against the shoulder (53) and the other: the axial displacement 'makes the clutch gear (50) move along the axis of the square bolt and compress Elastic pieces (ς ς ^) n
Mu (55)，形成齒部（51)脫離内釣齒 (352) ’而傳動私 , (35)與輪軸（30)為鬆配合 ’- )相對傳動輪（3 5 )形成互不干涉的空轉 ，故使用者控制打樯$办^ ^ 二檔，直接推動輪椅〔圖中未示〕 ，便由該推動力帶動輪軸（3〇)及其輪子（33)轉動 M250651 移位，輕鬆推動即可； 當撥桿（4 0 )被推回原位時，彈性件（5 5 )的彈 性回復力將促令離合齒輪（5 0 )沿方栓轴部（3 1 )軸 向位移，並使齒部（5 1 )卡入内鉤齒（3 5 2 )中，恢 復電動馬達（2 0 )驅動輪轴（3 0 )驅動情形。Mu (55) forms the tooth portion (51) away from the inner fishing gear (352) 'and the transmission gear is private, (35) and the axle (30) are loosely fitted'-) forms a non-interference idling motion with respect to the transmission wheel (3 5) Therefore, the user controls the snoring $ Office ^ ^ second gear and directly pushes the wheelchair [not shown], and the wheel (30) and its wheel (33) are rotated by the driving force to rotate M250651 and easily push it. ; When the lever (40) is pushed back to its original position, the elastic restoring force of the elastic member (55) will urge the clutch gear (50) to axially move along the square bolt shaft portion (31), and make the teeth The part (5 1) is caught in the inner hook (3 5 2), and the driving situation of the electric motor (20) to drive the wheel shaft (30) is restored.
10 M250651 【圖式簡單說明】 (一）圖式部分 第一圖係本創作配置於車架的立體外觀示意圖。 第二圖係本創作元件立體分解圖。 第三圖係本創作上視組合平面圖。 第四圖係本創作撥桿位於動力轴傳動輪轴的組合剖視 圖。 第五圖係本創作撥桿位於動力軸脫離輪軸的組合剖視 圖。 (二）元件代表符號 (1 0 )本體 （1 (1 5 )頂蓋 （1 (17)缺槽 (2 0 )電動馬達 （2 (211)蝸桿部 (3 0 )輪轴 (3 (3 3 )輪子 （3 (3 5 1 )蝸齒 （3 (4 0 )撥桿 （4 (4 2 )小彈簧 （4 (4 3 1 )推控端 （4 (5 0 )離合齒輪 （5 (5 2 )方栓槽 （5 (6 0 )車架 1 )開口 6 )沈頭孔 1 )動力轴 1)方栓軸部 5 )傳動輪 | 5 2 )内鉤齒 1 )柄套 3 )推腳 4 )銷 1 )齒部 3 )抵肩 1110 M250651 [Brief description of the drawings] (I) Schematic part The first drawing is a three-dimensional appearance schematic diagram of the creative arrangement on the frame. The second picture is a three-dimensional exploded view of the creative elements. The third picture is a combined plan view of this creation. The fourth picture is a combined sectional view of the creative lever located on the drive shaft of the power shaft. The fifth picture is a combined sectional view of the creative lever located on the power shaft away from the axle. (2) Symbols for components (1 0) Body (1 (1 5) Top cover (1 (17) Notch (2 0) Electric motor (2 (211) Worm section (3 0) Wheel axle (3 (3 3 ) Wheels (3 (3 5 1)) Worm gears (3 (4 0)) Lever (4 (4 2)) Small spring (4 (4 3 1)) Push-control end (4 (5 0)) Clutch gear (5 (5 2 ) Square bolt groove (5 (6 0) frame 1) Opening 6) Countersunk hole 1) Power shaft 1) Square bolt shaft 5) Drive wheel | 5 2) Inner hook teeth 1) Sleeve 3) Push foot 4 ) Pin 1) Tooth 3) Abut 11