M330827 八、新型說明： 【新型所屬之技術領域】 本新型是有關於一種減震裝置，特別是指一種電動輪 椅之減震裝置。 @ 【先前技術】 對於腿部肌肉受傷的人、雙腿功能性退化的老人、肢 體殘障，或是慢性病患等無法以雙腿獨立行動能力者，可 選擇電動輪椅（Electric Wheelchair)作為日常生活中用以代步 的辅助器具。 ^ 由於一般路面都具有高低起伏，顛簸不定等障礙的狀 況，例如階梯，突起或凹陷之路面等，因此，一電動輪椅 最好具有跨越上述障礙的能力，並在跨越時能有效吸收因 „亥等不平整路面所引起的震動，以增加乘坐時的舒適度。 如圖1所示，習知的一電動輪椅之底盤設計，是採用 戶:謂=“六連桿機構（Six_bar Linkage) “設計，並配合二彈 =每-電動輪椅進行避震，該電動輪椅之底盤包含一框 單元1連動單元2、一車輪單元3、以及一動力單元 °亥框架早兀1具有一底框11、二分別自該底框11前緣 兩相反側向上延伸的立柱12，及二分別連接該二立柱^並 向，延伸的主桿13，該底框11的兩侧分別設置有二相對應 的：：樞接點11卜每-立柱12上設置有-第二樞接點121 母主才干13上設置有一第三樞接點131。 白、1連動單元2具有二分設於該框架單元1之兩相反側 的連才干說21(因視角關係，圖1僅顯示出-連桿組21)，每 M330827M330827 VIII. New description: [New technical field] The present invention relates to a shock absorbing device, and more particularly to a shock absorbing device for an electric wheel chair. @ [Prior Art] For people with injured leg muscles, elderly people with functional deterioration of the legs, physical disabilities, or chronic patients who cannot independently act on their legs, you can choose Electric Wheelchair as your daily life. Auxiliary equipment used to travel. ^ Because the general road surface has high and low undulations, bumps and other obstacles, such as steps, bumps or sunken roads, etc., therefore, an electric wheelchair preferably has the ability to cross the above obstacles, and can effectively absorb the cause when crossing Wait for the vibration caused by uneven road surface to increase the comfort during riding. As shown in Figure 1, the design of a conventional electric wheelchair chassis is based on the user: "Six_bar Linkage" And with two bombs = per-electric wheelchair for suspension, the chassis of the electric wheelchair includes a frame unit 1 linkage unit 2, a wheel unit 3, and a power unit. The frame is early and has a bottom frame 11 and two. The pillars 12 extending upward from opposite sides of the front edge of the bottom frame 11 and the two main poles 13 respectively extending toward the two pillars are respectively provided with two corresponding sides: The pivot point 11 is provided with a second pivot point 121 on each of the pillars 12. The third pivot point 131 is disposed on the female master 13 . The white, 1 linkage unit 2 has two opposites disposed on the frame unit 1 The side of the company said 21 ( Angle relationship, FIG. 1 shows only - linkage 21), each M330827
:=1具有—拖接於對應主桿13之第三枢接點131， =刚後延伸而形成-前接點叫與-後接點217的上搖 以11、—樞接於對應立柱12之第二樞接點121並向前後 申，I成—轉點218的下搖臂212、—樞接於該上搖臂 •下搖#212之前接點216、218的前輪座桿213，一樞 ;“底框11之第-樞接點111並向後延伸而形成一後接 點U9的底側桿214，及一樞接於該上搖臂2ΐι與底側桿 214之後接點217、219的後侧桿215。另外，該連動單元2 更八有一刀別連接於該框架單元1與該二連桿組21之上搖 臂2U的第-彈簧22，以及二第二彈簧23，分別連接該二 連桿組21之後側桿215與該框架單元丨之二主桿13。 该車輪單元3是樞接於該框架單元丨與連動單元2，並 具有一樞接於該連動單元2的驅動輪31。該動力單元4是 用以驅動該車輪單元3轉動，藉此帶動該電動輪椅移動。 當該電動輪椅因行經不平整之路面時，利用該二連桿組21 之底侧桿214與後側桿215的設置態樣，以降低因該二上 、下搖臂211、212上下擺動所造成該框架單元丨之二主桿 13傾斜的程度，再藉由該第一、第二彈簧22、23之彈性回 復力來吸收車輪單元3與不平整路面接觸時所產生的震動 ’使得乘坐者在乘坐時，不會感受到太大的搖晃及震動情 況0 但是’雖然習知之電動輪椅的底盤已在避震方面有所 設計，但是，用於減震的主要機構（該第一、第二彈簧22、 23)是直接與該車架主體相連接，所以受力後的力量雖然部 6 M330827 分已藉由該等彈簧之彈性回復力所吸收，但是，該第一、 第二彈簧22、23皆具有固設於該車架主體（框架單元1}的一 端，因此該第一、第二彈簧22、23在受力後其大部分力量 仍疋需要由車架主體自行來吸收，因此乘坐者仍會感受到 震動所帶來的不適，所以習知的電動輪椅在避震性能上仍 有許多可以進歩的空間。 【新型内容】 因此’本新型之目的，即在提供一種使用於減震之機 構且並非直接連接於電動輪椅之車架上，進而更進一步地 強化其辰動吸收程度，並增加乘坐者之舒適度的減震裝置 〇 於是’本新型之電動輪椅之減震裝置，是連結於一電 動輪椅之一車架及一連桿組上，並用於吸收該電動輪椅之 一驅動輪組在作動時因地面不平整所產生的震動，該車架 具有一樞軸，該連桿組具有一上搖臂及一後搖臂，該後搖 煮具有一樞接於該上搖臂的樞接端，及一遠離該樞接端的 一第一樞接點，該電動輪椅之減震裝置包含一驅動輪搖臂 、一驅動輪固定座，及一回復件。 该驅動輪搖臂之其二端是分別連接於該車架之樞軸及 該後搖臂之第一樞接點，該驅動輪搖臂在遠離該樞軸的一 端設有一第一連接部。 該驅動輪固定座是固定於該電動輪椅之驅動輪組上， 該驅動輪固定座之一端是樞接於該車架之樞軸，並在遠離 該樞軸之一端設有一第二連接部。 7 M330827 該回復件是設於該驅動輪搖臂之第一連接部與該驅動 輪固定座之第二連接部之間，進而用於吸收連接於該驅動 輪固定座上之該驅動輪組所產生的震動。 本新型之功效在於利用設於該驅動輪搖臂與該驅動輪 固定座之間的回復件，使得該電動輪椅之驅動輪組與不平 整地面相接觸時所產生的震動能藉由該回復件之彈性回復 力而吸收，再藉由本新型與一電動輪椅之連桿組之間的組 合關係’使震動之力量可先被該回復件及該驅動輪搖臂與 该連桿組之間的相互運動而吸收，最後再傳遞到車架上， 進而將乘坐舒適性更進一步的提升。 【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 以下配a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。 在本新型被蛘細描述之前，要注意的是，在以下的說 明中，類似的元件是以相同的編號來表示。 如圖2、3所示，本新型電動輪椅之減震裝置之較佳實 施例，是連結於一電動輪椅之一車架100及一連桿組2〇〇 上，並用於吸收該電動輪椅之一驅動輪組3〇〇在作動時因 也面不平整所產生的震動’該車架⑽具有一樞軸1〇1，該 連才干、、且200具有一上搖臂2〇4及一後搖臂，該後搖臂 2〇1具有-樞接於該上搖f 2〇4的樞接端2〇2，〗一遠離該 接端202的-第_樞接點2〇3，該電動輪椅之減震裝置之 較佳實施例，包含一驅動輪搖臂5、一驅動輪固定座6，及 8 M330827 一回復件7。 該驅動輪搖臂5之其二端是分料接於該車架⑽之 樞軸ΗΠ及該後搖臂201之第—樞接點2〇3，該驅動輪搖臂 5在达離該_ 1G1的__端設有—第—連接部η，在本實 施例中，該㈣輪㈣5呈-難彎斜之長矩型狀，且位 於該驅動輪搖臂5上的第一連接部51為一穿孔。 該驅動輪固定座6是固定於該電動輪椅之驅動輪組300 上，該驅動輪固定座6之-端是與該驅動輪搖f 5相同地 ㈣於該車架HH)之樞軸1G1，並在遠離該樞軸⑻之一端 設有n接部61。為了配合該第_連接部51，該驅動 輪固疋座6之第二連接部61為_自遠離該樞軸⑻的一端 向上延伸的凸柱，並可相配合地伸入該第一連接部Η中， 汶凸柱伸出該第一連接部51的一端上設有螺牙，並可配合 一螺帽52將該第一、第二連接部51、61相連接固定。 孩回復件7疋设於該驅動輪搖臂5之第一連接部$ 1與 該驅動輪固定座6之第二連接部61之間，進而用於吸收連 接於该驅動輪固定座6上之該驅動輪組3〇〇所產生的震動 ，在本實施例中，該回復件7為一彈簧，並套設於該第二 連接部61上且與該第一、第二連接部51、61相頂抵。 值得注意的是，本新型是可直接套用於一如習知所揭 i各般具有六連桿機構底盤的電動輪椅，並配合習知已具有 的二彈簧400來進一步地加強其避震性能，進而增加該電 動輪椅行進時的平穩度，使乘坐者更感舒適。 當該電動輪椅之驅動輪組300在與不平整之地面相接 9 M330827 觸日守，其所產生的震動首先會傳導至該驅動輪固定座6，進 而壓縮該回復件7，而該回復件7之彈性即會將部份之力量 吸收，此外，由於該驅動輪固定座6與該驅動輪搖臂5皆 是樞接於同一樞軸1〇1上，兩者在受力時也會相配合地運 動，藉此帶動該電動輪椅之連桿組2〇〇進行相對應之運動 ，並再次吸收部份力量，最後，些許剩餘的力量才會傳至 該電動輪椅之車架主體（座椅等，圖未示）。 相較於習知用於避震的彈簧4〇〇是直接與該車架1〇〇 相連接，在本新型中，由於負責吸收該驅動輪所產生之震 動力里之主要元件（該回復件7)並未直接與該車#⑽相連 接而疋如上述般藉由该驅動輪固定座6與該驅動輪搖臂5 連接於該車架主體上，進而減少震動時對該車架主體的直 接影響。 另外，本新型之另一項優點在於··由於該主要回復件7 是直接與該驅動輪搖臂5相連接，兩者之結合可在避震的 過程中同時保持該驅動輪組3〇〇對地面之正向力，進而提 昇其操控性能。 ^歸納上述，本新型之電動輪椅之減震裝置，利用設於 该驅動輪搖臂5與該驅動輪固定座6之間的回復件7，使得 该電動輪椅之驅動輪組3〇〇與不平整地面相接觸時所產生 的震動能藉由該回復件之彈性回復力而吸收，再藉由本新 型與該電動輪椅之連桿、组之間的組合關係，使震動之 力量可先被該回㈣7及該驅動輪搖臂5與該連桿組2〇〇 之間的相互運動而吸收，最後再傳遞到車架1〇〇上，進而 10 M330827 將乘坐舒適性更進—步的提升。本新型更藉由直接設置於 "亥驅動輪搖’ 5上的回復件，使其在避震的過程中可同時 保持該驅動輪組3〇〇斟士士 ； 丁人丄 ., 于也面之正向力，有助於操控性能的 提昇，故確實能達到本新型之目的。 准以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一侧視圖，說明習知之一電動輪椅之底盤裝置 -…十不丨土电勒輸椅之減震裝 置的較佳實施例與一車架、一連桿組，及一驅動 解後情形；及 圖3是一立體圖，說明該較佳實施例與一車架、一連 桿組’及一驅動輪組的組合後狀況。 11 M330827 【主要元件符號說明】 5 ....... •…驅動輪搖臂 200… •…連桿組 51…… •…第一連接部 201… •…後搖臂 52••… •…螺帽 202… • · · 接知 6…… •…驅動輪固定座 203… 弟 拟接點 61 ••… •…第二連接部 204… •…上搖臂 7…… •…回復件 300… 馬£動輪組 100… …·車架 400… …·彈簧 101 ··· …·樞軸: = 1 has - the third pivot point 131 dragged to the corresponding main pole 13 , = just extended to form - the front contact and the rear contact 217 of the upper swing 11 - pivotally connected to the corresponding column 12 The second pivot point 121 is forwardly and forwardly, and the lower rocker arm 212 of the pivot point 218 is pivotally connected to the front wheel seat post 213 of the contact point 216, 218 of the upper rocker arm and the lower rocker #212. The bottom pivot rod 111 of the bottom frame 11 and extends rearward to form a bottom side rod 214 of a rear joint U9, and a pivotal connection between the upper rocker arm 2 and the bottom side rod 214, 217, 219 The rear side rod 215. In addition, the linkage unit 2 is further connected to the frame unit 1 and the first spring 22 of the rocker arm 2U of the two link group 21, and the second spring 23 are respectively connected The two-link group 21 has a rear side rod 215 and two main rods 13 of the frame unit. The wheel unit 3 is pivotally connected to the frame unit 丨 and the linkage unit 2, and has a driving mechanism pivoted to the linkage unit 2 The power unit 4 is configured to drive the wheel unit 3 to rotate, thereby driving the electric wheelchair to move. When the electric wheelchair passes through an uneven road surface, the second The bottom side rod 214 and the rear side rod 215 of the connecting rod set 21 are arranged to reduce the inclination of the two main rods 13 of the frame unit due to the up and down swinging of the two upper and lower rocker arms 211, 212, and then By the elastic restoring force of the first and second springs 22, 23, the vibration generated when the wheel unit 3 is in contact with the uneven road surface is absorbed, so that the occupant does not feel too much shaking and vibration when riding. 0 However, although the chassis of the conventional electric wheelchair has been designed for shock absorption, the main mechanism for damping (the first and second springs 22, 23) is directly connected to the main body of the frame. Therefore, although the force of the force is absorbed by the elastic restoring force of the springs, the first and second springs 22, 23 are fixed to the frame body (frame unit 1). Therefore, the first and second springs 22, 23 still need to be absorbed by the main body of the frame after being subjected to the force, so the occupant still feels the discomfort caused by the vibration, so the conventional Electric wheelchair still has suspension performance [New content] Therefore, the purpose of the present invention is to provide a mechanism for damping and not directly connected to the frame of the electric wheelchair, thereby further enhancing the degree of absorption of the movement. And the damper device for increasing the comfort of the occupant, so that the damper device of the electric wheelchair of the present invention is connected to one frame of an electric wheelchair and a link group, and is used for absorbing one of the electric wheelchairs. When the wheel set is vibrated due to unevenness of the ground during operation, the frame has a pivot, the link set has an upper rocker arm and a rear rocker arm, and the rear shaker has a pivotal connection to the upper rocker arm The pivoting end of the electric wheelchair and the first pivoting point away from the pivoting end, the damping device of the electric wheelchair comprises a driving wheel rocker arm, a driving wheel fixing seat, and a returning member. The two ends of the driving wheel rocker arm are respectively connected to the pivot of the frame and the first pivoting point of the rear rocker arm, and the driving wheel rocker arm is provided with a first connecting portion at one end away from the pivot shaft. The driving wheel fixing base is fixed to the driving wheel set of the electric wheelchair. One end of the driving wheel fixing seat is pivoted to the pivot of the frame, and a second connecting portion is disposed at one end away from the pivot. 7 M330827 The returning member is disposed between the first connecting portion of the driving wheel rocker arm and the second connecting portion of the driving wheel fixing seat, and is configured to absorb the driving wheel set connected to the driving wheel fixing seat The vibration generated. The function of the present invention is to utilize the returning member disposed between the driving wheel rocker arm and the driving wheel fixing seat, so that the vibration energy generated when the driving wheel set of the electric wheelchair contacts the uneven ground can be used by the returning member The elastic restoring force is absorbed, and by the combination relationship between the present invention and the connecting rod set of an electric wheelchair, the force of the vibration can be firstly exchanged between the returning member and the driving wheel rocker arm and the connecting rod set. It is absorbed by the movement and finally transmitted to the frame, which further enhances the ride comfort. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. As shown in FIG. 2 and FIG. 3, a preferred embodiment of the shock absorber of the electric wheelchair of the present invention is coupled to a frame 100 of an electric wheelchair and a link set 2, and is used for absorbing the electric wheelchair. The vibration generated by a driving wheel set 3 因 when it is actuated due to uneven surface. The frame (10) has a pivot 1〇1, the connection is dry, and the 200 has an upper rocker arm 2〇4 and a rear a rocker arm, the rear rocker arm 2〇1 has a pivotal end 2〇2 pivotally connected to the upper rocker f 2〇4, a distance from the first end of the terminal 202 to the -th pivot point 2〇3, the electric A preferred embodiment of the shock absorber for a wheelchair includes a drive wheel rocker arm 5, a drive wheel mount 6, and an 8 M330827 return member 7. The two ends of the driving wheel rocker arm 5 are the pivoting port which is connected to the frame (10) and the first pivoting point 2〇3 of the rear rocker arm 201, and the driving wheel rocker arm 5 is away from the _ The first connection portion 51 of the drive wheel rocker arm 5 a perforation. The driving wheel mount 6 is fixed to the driving wheel set 300 of the electric wheelchair. The end of the driving wheel fixing base 6 is the same as the driving wheel rocking f 5 (four) of the frame 1H1 of the frame HH), And an n-joint portion 61 is provided at one end away from the pivot (8). In order to cooperate with the first connecting portion 51, the second connecting portion 61 of the driving wheel fixing base 6 is a protruding post extending upward from an end far from the pivot shaft (8), and can fit into the first connecting portion cooperatively In the middle, the end of the first protruding portion 51 is provided with a thread on the end of the first connecting portion 51, and the first and second connecting portions 51 and 61 are connected and fixed by a nut 52. The child returning member 7 is disposed between the first connecting portion $1 of the driving wheel rocker arm 5 and the second connecting portion 61 of the driving wheel fixing seat 6, and is further configured to absorb and be connected to the driving wheel fixing seat 6. In the present embodiment, the returning member 7 is a spring and is sleeved on the second connecting portion 61 and connected to the first and second connecting portions 51 and 61. The top is offset. It should be noted that the present invention can be directly applied to an electric wheelchair having a six-bar linkage chassis as disclosed in the prior art, and further cooperates with the conventional two springs 400 to further enhance the suspension performance and thereby increase The smoothness of the electric wheelchair when traveling makes the occupant more comfortable. When the driving wheel set 300 of the electric wheelchair is connected to the uneven ground 9 M330827, the vibration generated is first transmitted to the driving wheel fixing seat 6, thereby compressing the returning member 7, and the returning member The elasticity of 7 will absorb the power of the part. In addition, since the driving wheel fixing seat 6 and the driving wheel rocker arm 5 are pivotally connected to the same pivot 1〇1, the two will also be in force. Cooperating with the ground, thereby driving the connecting rod set 2 of the electric wheelchair to perform corresponding movement, and absorbing some of the force again, and finally, some remaining force is transmitted to the frame body of the electric wheelchair (seat Etc., the figure is not shown). Compared with the conventional spring 4 用于 for shock absorber, it is directly connected with the frame 1 ,. In the present invention, the main component in the shock force generated by the drive wheel is absorbed (the return member) 7) is not directly connected to the car #(10) and is connected to the frame body by the drive wheel mount 6 and the drive wheel rocker 5 as described above, thereby reducing vibration to the frame body direct impact. In addition, another advantage of the present invention is that since the main recovery member 7 is directly connected to the driving wheel rocker arm 5, the combination of the two can simultaneously maintain the driving wheel set 3 during the suspension. The positive force on the ground, which in turn improves its handling. ^In summary, the shock absorber of the electric wheelchair of the present invention utilizes the return member 7 disposed between the drive wheel rocker arm 5 and the drive wheel mount 6 to make the drive wheel set of the electric wheelchair 3 or not The vibration generated by the flat ground contact is absorbed by the elastic restoring force of the returning member, and the combination of the new type and the connecting rod and the group of the electric wheelchair enables the vibration force to be first returned. (4) 7 and the interaction between the driving wheel rocker arm 5 and the connecting rod group 2〇〇 are absorbed, and finally transmitted to the frame 1〇〇, and then the 10 M330827 further improves the ride comfort. The new type is further provided by the reply member directly disposed on the "Hai drive wheel shake' 5, so that the drive wheel set can be maintained at the same time during the suspension process; Ding Renqi., Yu Ye The positive force of the surface helps to improve the handling performance, so it can achieve the purpose of this new type. The above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevational view of a preferred embodiment of a conventional wheelchair device for an electric wheelchair, a shock absorber of a ten-foot electric wheelchair, and a frame and a linkage And a driving situation after the solution; and FIG. 3 is a perspective view showing the combined state of the preferred embodiment with a frame, a link set, and a drive wheel set. 11 M330827 [Explanation of main component symbols] 5 ....... •...Drive wheel rocker arm 200... •...Lever link group 51... •...First connection part 201...•...Back rocker arm 52••... • ...the nut 202... • · · the catch 6... • the drive wheel mount 203... the young joint 61 ••... •...the second joint 204...•...the upper rocker 7...the...return 300 ... Horse £ wheel set 100...·Frame 400...··Spring 101 ·····Pivot
1212