201132340 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係有關於一種電動輪椅的避震結構，尤其是 指一種行駛於中間低、前後高之凹字形地形，或是中間 高、前後低之凸字形地形時，均具有不易翻車之良好穩 定性效果，而能維護使用者乘坐時之安全性的電動輪椅 的避震結構創新設計。 【先前技術】 [0002] 按，常會見到一些民眾因遭受如：車禍、中風—— 等重大疾病或傷害時，造成下半身癱瘓之情況，或因長 期臥病於床無法下床走動，使得雙腳肌肉萎縮，無法再 行輕鬆站起行走，亦或是年老者生理機能退化造成行動 遲緩之現象，而這些行動不便之民眾於欲長距離活動時 ，常需利用拐杖或輪椅幫助行動，但因該類設備皆為以 人力施力行動，使得不僅極為耗費力氣，且也無法具有 一較快之速度，而存有諸多困擾與不便之處。 [0003] 於是，即有業者研發出各式之電動代步車、電動輪 椅···.等設備，以利用電能做為動力幫助行動不便之民 眾能方便活動。 [0004] 然而，綜觀市面上之各式電動輪椅，其雖可達到利 用電能做為動力供行動不便之民眾方便進行活動的預期 功效，但於其實際實施使用中卻發現，該電動輪椅普遍 皆僅具有前、後輪，並在前輪或前輪及後輪上裝設避震 結構，且採用後輪做動力傳動之主動輪體，因此，於行 駛過程中的平穩性尚有待改進，由其行駛在中間低、前 099108883 表單編號A0101 第4頁/共14頁 0992015824-0 201132340 [0005] Ο [0006] Ο [0007] 099108883 後向之凹字形地形，或是中間高、前後低之凸字形地形 時’容易產生打滑或翻覆之情形，以致危及使用者的生 命安全。 【發明内容】 今’本發明人即是鑒於上述現有之電動輪椅結構在 實際行駛於凸字形或凹字形路況時所產生的缺失之處， 於是研發出本發明，以令本發明之電動輪椅不論行駛在 凸字形或凹字形路況時，不會有翻覆或打滑之現象產生 ’而此即為本發明之主要目的與功效。 為達到本發明之主要目的與功效，本發明提供一種 電動輪椅的避震結構，係在電動輪椅之骨架的前端以一 框軸同時樞接前輪架與傳動組框架，該前輪架裝設有前 輪’並在前輪架與傳動組框架之間組設前避震裝置，該 傳動組框架内設有傳動組，傳動組的動力輸出處連結主 動輪’再於傳動組框架與骨架之間組裝有輔助避震裝置 ’另該骨架的後端設有後輪；據此，藉由前避震震置設 在前輪架與傳動組框架之間，而該輔助避震裝置設在傳 動組框架與骨架之間，使該輔助避震裝置能夠吸收前避 震裝置作用於傳動組框架上之力，達到該電動輪椅不論 行駛於中間低 '前後高之凹字形地形，或是中間高、前 後低之凸字形地形時，均具有良好不易翻車之穩定性效 果’以維護使用者乘坐時之安全性的目的。 本發明之電動輪椅的避震結構，係進一步包括裝嗖 在該骨架後端處的後避震裝置；其中，係於該骨架的後 端二侧處分別以另一樞軸樞接後輪架，並在該後輪架上 表單編號Α0101 第5頁/共14頁 0992015824-0 201132340 [0008] 設後輪，該後避震裝置則裝設在該後輪架與該骨架之間 ;據此’俾當後輪通過顛簸不平的路面時，能藉由該後 避震裝置吸收後輪之震動情形，使該電動輪椅保持平穩 性。 【實施方式】 為令本發明之技術手段創作目的及達成功效有更完 整及清楚的揭露，茲於下詳細說明之，並請一併參閱揭 示之圖式及元件符號。 [0009] [0010] [0011] 请參第一、二圖，本發明之電動輪椅的避震結構係 包括前避震裝置（1 )及辅助避震裝置（2);其中： 該前避震裝置（1)及輔助避震裝置（2 )係裝設 在该電動輪椅之骨架（4)的前端處；該電動輪椅之骨 架（4)的前端二侧各設有一第一樞軸（41)，利用 該第一樞軸（4 1 )同時樞接一前輪架（4 2)及一傳 動組框架（5 )，該前輪架4 2)裝設有前輪（43 )，該傳動組框架（5)上則敦有傳動组（5 i )，該 傳動組（5 1 )的動力輸ίίί端(51 1 )則裝設有-主 動輪（5 2)’又，令該前避震裝置⑴的兩端組裝 連結於前輪架（4 2)與傳動組框架（5)之間，並令 該辅助避震裝置（2)的兩端組裝連結於該傳動組框架 (5)與電動輪椅之骨架（4)之間，其中該輔助避震 裝置（2)為一拉伸彈簧。 藉此【以下併參第二、四圖】，利用前避震裝置（ 1)設在前輪架u 2)與傳動組框架（5)之間，以 099108883 及該辅助避震裝置 表單編號Α0101 (2 )設在傳動組框架（5)與骨架 第6頁/共14頁 0992015824-0 201132340201132340 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a suspension structure for an electric wheelchair, and more particularly to a concave-shaped terrain that is driven in the middle, low in front and rear, or in the middle, When the front and rear low convex shape terrain, it has a good stability effect that is not easy to roll over, and the shock absorber structure of the electric wheelchair which can maintain the safety of the user when riding is innovative. [Prior Art] [0002] Press, often see some people suffering from serious diseases or injuries such as: car accidents, strokes, etc., causing lower body paralysis, or unable to get out of bed due to long-term illness in bed, making feet Muscle atrophy, can no longer easily stand up, or the phenomenon of sluggishness caused by the deterioration of physiological functions of the elderly, and these people with limited mobility often need to use crutches or wheelchairs to help the long-distance activities, but All kinds of equipment are powered by human power, which makes it not only extremely labor-intensive, but also has a faster speed, and there are many troubles and inconveniences. [0003] As a result, some manufacturers have developed various types of electric scooters, electric wheel chairs, etc., to use electric energy as a power to help people with limited mobility. [0004] However, looking at all kinds of electric wheelchairs on the market, although it can achieve the expected effect of using electric energy as a power for people with limited mobility to carry out activities, but in its actual implementation, it is found that the electric wheelchair is generally It has only the front and rear wheels, and the suspension structure is installed on the front or front and rear wheels, and the rear wheel is used as the driving wheel of the power transmission. Therefore, the stability during the driving process needs to be improved. In the middle low, the first 099108883 Form No. A0101 Page 4 / Total 14 Pages 0992015824-0 201132340 [0005] Ο [0006] Ο [0007] 099108883 Backward gravure terrain, or intermediate height, front and rear low convex terrain When it is easy to cause slipping or overturning, which endangers the safety of the user. SUMMARY OF THE INVENTION The present inventors have developed the present invention in view of the above-described conventional electric wheelchair structure in the actual driving in a chevron or concave road condition, so that the present invention can be used to make the electric wheelchair of the present invention When driving in a convex or concave road condition, there is no phenomenon of overturning or slipping, and this is the main purpose and effect of the present invention. In order to achieve the main purpose and effect of the present invention, the present invention provides a suspension structure for an electric wheelchair, which is pivotally connected to a front wheel frame and a transmission frame at a front end of a skeleton of an electric wheelchair, and the front wheel frame is provided with a front wheel. 'And a front suspension device is arranged between the front wheel frame and the transmission frame, and the transmission group is provided with a transmission group, and the power output of the transmission group is connected with the driving wheel', and then the auxiliary gear is assembled between the transmission frame and the skeleton. The shock device 'the rear end of the skeleton is provided with a rear wheel; accordingly, the front shock absorber is disposed between the front wheel frame and the transmission frame, and the auxiliary suspension device is disposed between the transmission frame and the skeleton The auxiliary suspension device can absorb the force of the front suspension device acting on the frame of the transmission group, and achieve the concave shape of the electric wheelchair regardless of whether it is traveling in the middle low front or rear, or the convex shape terrain with high middle and low front and rear. At the same time, it has a good stability effect of being difficult to roll over to maintain the safety of the user when riding. The suspension structure of the electric wheelchair of the present invention further comprises a rear suspension device mounted at the rear end of the skeleton; wherein the rear wheel frame is pivotally connected to the rear side of the skeleton by another pivot And on the rear wheel frame, the form number Α0101, page 5 / total 14 pages 0992015824-0 201132340 [0008] a rear wheel is provided, and the rear suspension device is installed between the rear wheel frame and the skeleton; 'When the rear wheel passes the bumpy road surface, the rear wheel can absorb the vibration of the rear wheel to keep the electric wheelchair stable. [Embodiment] For a more complete and clear disclosure of the technical means of the present invention and the effect thereof, the following detailed description is provided, and the drawings and the symbol of the elements are referred to together. [0011] Referring to FIGS. 1 and 2, the suspension structure of the electric wheelchair of the present invention includes a front suspension device (1) and an auxiliary suspension device (2); wherein: the front suspension The device (1) and the auxiliary suspension device (2) are installed at the front end of the skeleton (4) of the electric wheelchair; and the first pivot (41) is disposed on each of the front sides of the skeleton (4) of the electric wheelchair. Using the first pivot (4 1 ) to simultaneously pivotally connect a front wheel carrier (42) and a transmission group frame (5), the front wheel carrier 42) is equipped with a front wheel (43), the transmission group frame (5) There is a transmission group (5 i ), and the power transmission (51 1 ) of the transmission group (51) is equipped with a - drive wheel (52), which makes the front suspension device (1) The two ends are assembled and coupled between the front wheel frame (42) and the transmission frame (5), and the two ends of the auxiliary suspension device (2) are assembled and coupled to the transmission frame (5) and the skeleton of the electric wheelchair ( 4), wherein the auxiliary suspension device (2) is a tension spring. By means of the following [see the second and fourth figures], the front suspension device (1) is arranged between the front wheel frame u 2) and the transmission frame (5), with 099108883 and the auxiliary suspension device form number Α 0101 ( 2) Designed in the drive train frame (5) and skeleton page 6 / total 14 pages 0992015824-0 201132340
(4)之間’使該前輪（4 3)在通過相對對應主動輪 (5 2 )處之路面呈凸起狀時，因該前輪（ο)的上 升頂推壓縮前避震裝置（1)，且前輪（43)作用在 該前避震裝置⑴上之力，將會傳導至傳動組框架（ )处下壓該傳動組框架（5)，使該傳動組框架（ 5)以第一樞軸（41)為軸心往力的方向枢轉位移， 並據此拉伸該輔助避震裝置（2)，以吸收前避震裝置 (1)作用於傳動組框架（5)上之力。反之，當該前 輪（4 3)在通過相對對應主動輪（5 2)處之路面呈 下凹狀時【即相對對應主動輪（5 2 )處之路面處係呈 凸起狀】，該主動輪（5 2 )的上升將頂推壓縮前避震 裝置（1 )與辅助避震裝置:⑵，以吸收該主動輪（ 5 2)的震動情形。 2 本發明之電動輪椅的避震結構，係進一步包括有後 避震裝置（3)，該後避震裝置（3)係裝設在該骨架 (4)的後端處。其中，於該骨帛（4)的後端二側處 〇 分別以第二樞軸（44 )樞接後輪架（45)，並在該 後輪架（45)上设後輪（46)，該後避震裝置（3 )則裝設在該後輪架（4 5)與該骨架（4 )之間。 [〇〇13] 據此【以下再參第三、四圖】，該樞設在骨架（4 )二侧之後輪架（4 5)因與骨架（4)之間設有該後 避震裝置（3)，故當後輪（46)通過顛簸不平的路 面時，能藉由該後避震裝置（3)吸收後輪（4 6)之 震動情形，使該電動輪椅保持平穩性。 [0014] 099108883 經由以上的實施說明，可知本發明之電動輪椅的避 表單編號A0101 第7頁/共14頁 0992015824-0 201132340 震結構因藉由後避震裝置設於骨架與後輪架之間，且令 該前避震裝置設在前輪架與傳動組框架之間，而該輔助 避震裝置設在傳動組框架與骨架之間，使該後輪具有避 震效能，同時在輔助避震裝置能夠吸收前避震裝置作用 於傳動組框架上之力的情形下，達到該電動輪椅不論行 駛於中間低、前後高之凹字形地形，或是中間高、前後 低之凸字形地形時，均具有不易翻車之良好穩定性與不 打滑之效果，確保使用者乘坐時之安全性之效能。 [0015] 以上所舉者僅係本發明之部份實施例，並非用以限 制本發明，致依本發明之發明精神及特徵，稍加變化修 飾而成者，亦應包括在本專利範圍之内。 [0016] 综上所述，本發明實施例確能達到所預期之使用功 效，又其所揭露之具體技術，不僅未曾見諸於同類產品 中，亦未曾公開於申請前，誠已完全符合專利法之規定 與要求，爰依法提出發明專利之申請，懇請惠予審查， 並賜准專利，則實感德便。 【圖式簡單說明】 [0017] 第一圖：本發明之電動輪椅的骨架結構立體外觀示意圖 [0018] 第二圖：本發明之電動輪椅的骨架結構側視示意圖 [0019] 第三圖：本發明之電動輪椅行駛於凹字形地形之示意圖 [0020] 第四圖：本發明之電動輪椅行駛於凸字形地形之示意圖 【主要元件符號說明】 [0021] (1) 前避震裝置 （2) 輔助避震裝置 099108883 表單編號A0101 第8頁/共14頁 0992015824-0 201132340 [0022] ( 3 ) [0023] (41) [0024] (43) [0025] (45) [0026] ( 5 ) [0027] (511) 骨架 前輪架 第二框軸 後輪 傳動組 主動輪 後避震裝置 (4 ) 第一樞軸 (42 前輪 (44 後輪架 (46 傳動組框架 (51 動力輸出端 (52 ❹(4) When the front wheel (4 3) is convex in the road surface passing through the corresponding corresponding driving wheel (52), the front shocking device (1) is pushed up by the rising of the front wheel (o) And the force of the front wheel (43) acting on the front suspension device (1) will be transmitted to the transmission frame ( ) to press the transmission frame (5), so that the transmission frame (5) is the first pivot The shaft (41) is pivotally displaced in the direction of the axial force, and the auxiliary suspension device (2) is stretched accordingly to absorb the force acting on the transmission frame (5) by the front suspension device (1). On the other hand, when the front wheel (43) is concave in the road surface passing through the corresponding corresponding driving wheel (52), that is, the road surface at the corresponding driving wheel (52) is convex, the initiative The rise of the wheel (52) will push the pre-compression shock absorber (1) and the auxiliary suspension device: (2) to absorb the vibration of the drive wheel (52). 2 The suspension structure of the electric wheelchair of the present invention further includes a rear suspension device (3) mounted at a rear end of the skeleton (4). Wherein, at the rear end sides of the skeleton (4), the rear wheel frame (45) is pivotally connected by a second pivot (44), and the rear wheel (46) is disposed on the rear wheel frame (45). The rear suspension device (3) is disposed between the rear wheel frame (45) and the skeleton (4). [〇〇13] According to this [following the third and fourth figures below], the pivot frame (4) is disposed on the two sides of the skeleton (4), and the rear suspension device is disposed between the wheel frame (45) and the skeleton (4). (3), so when the rear wheel (46) passes the bumpy road surface, the electric shock wheelchair can be kept stable by the rear shock absorber (3) absorbing the vibration of the rear wheel (46). [0014] 099108883 According to the above description, it can be seen that the electric wheelchair of the present invention avoids the form number A0101. Page 7/14 pages 0992015824-0 201132340 The shock structure is provided between the skeleton and the rear wheel frame by the rear suspension device. And the front suspension device is disposed between the front wheel frame and the transmission group frame, and the auxiliary suspension device is disposed between the transmission group frame and the skeleton, so that the rear wheel has the suspension performance and the auxiliary suspension device When the force of the front suspension device acting on the frame of the transmission group can be absorbed, the electric wheelchair can be realized regardless of whether it is driven in a concave shape in the middle, high in front and rear, or in a convex shape in which the middle height is high and the front and rear are low. It is not easy to roll over and has good stability and non-slip effect, ensuring the safety of the user when riding. [0015] The above is only a part of the embodiments of the present invention, and is not intended to limit the present invention, and the invention may be included in the scope of the present invention. Inside. [0016] In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific technology disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the patent. The provisions and requirements of the law, the application for invention patents in accordance with the law, and the application for review, and the grant of patents, are truly sensible. BRIEF DESCRIPTION OF THE DRAWINGS [0017] FIG. 1 is a perspective view showing the skeleton structure of the electric wheelchair of the present invention. [0018] FIG. 2 is a side view showing the skeleton structure of the electric wheelchair of the present invention [0019] Schematic diagram of the invention of the electric wheelchair running on the concave shape [0020] Fourth diagram: Schematic diagram of the electric wheelchair of the present invention running on the convex terrain [Main component symbol description] [0021] (1) Front suspension device (2) Auxiliary Shock absorber 099108883 Form number A0101 Page 8 / 14 pages 0992015824-0 201132340 [0022] (3) [0023] (41) [0024] (43) [0025] (45) [0026] (5) [0027 (511) Skeleton front wheel frame second frame shaft rear wheel drive group drive wheel rear suspension device (4) First pivot (42 front wheel (44 rear wheel frame (46 drive train frame (51 power output end (52 ❹
099108883 表單編號A0101 第9頁/共14頁 0992015824-0099108883 Form No. A0101 Page 9 of 14 0992015824-0