M416458 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種輪椅，尤指一種輪椅前叉避震 【先前技術】 輪椅的兩個前輪可以360度任意旋轉，因此可以起 導向的作用，從而可以方便使輪椅進行左右轉向。所以戈 ，前輪雖小，但在輪椅中卻扮演了極為重要的角色。况 然而，由於前輪很小，受力較少，從上方來的壓力’ 小，故只要輕微地震動，震動就會很明顯，為了減小前^ 的震動，一般都在前輪處設置有避震結構。現有的輪掎^ 輪避震結構通常為避震彈簧，該避震彈簧常設置在用於固 定前輪的前叉上，或者前叉的轉軸上。例如：於2〇〇7年7 月25日授權公告的^292544叮專利前案，再如：於“Μ 年11月19日授權公告的CN2〇U5〇6〇6Y專利，都公開了 採用彈簧進行減震的輪椅前又避震結構。這種以彈簧進〜 避震的結構’彈簧需套在前叉的轉轴上，或者安裝在前： 上，使則輪的整體外形體積較大，而且彈簧暴露在外容易 生錄’會影響避震效果，還會影響產品的外觀。如果將彈 *安裝在外套或殼體之内’又需要額外增加與之相配的零 件，使產品的結構過於複雜，增加製造成本，還會增加 品的體積及重量。 【新型内容】 本創作所要解決的技術問題在於提供一種結構簡單 、重量輕的輪椅前叉避震結構。 M416458 為解決上述技術問題，本創作的技術解決方案是：一 種輸椅前叉避震結構’輪椅前輪安裝在一前又下方的叉體 上，該前叉上安裝有一芯軸，前冬的上方設有一個u形體， 所述芯軸安裝在該u形體的上方片體上。 所述U形體形成的U形槽之内設置有一個具有彈性的 避震塊。 所述的避震塊相對芯軸位置設置有一安裝孔，安裝時 ，芯軸下段的螺紋段伸入該安裝孔，再以一螺帽從安裝孔 下方穿過並鎖固在芯軸的螺紋段上。 所述的避震塊相對U形體的上方片體設置有一插槽， 安裴時將避震塊以其插槽從U形體開口一側插在U形體的 上方片體上。 所述的避震塊兩側設置有撞片。 所述U形體所形成的u形槽遠離開口的一端槽徑大 而開口一端的槽徑小。M416458 V. New description: [New technical field] The present invention relates to a wheelchair, in particular to a wheelchair front fork suspension. [Prior Art] The two front wheels of the wheelchair can be rotated 360 degrees, so that it can serve as a guide. It is convenient to turn the wheelchair to the left and right. Therefore, the front wheel is small, but it plays a very important role in the wheelchair. However, since the front wheel is small and the force is small, the pressure from the top is 'small, so the vibration will be obvious as long as it is slightly vibrated. In order to reduce the vibration of the front ^, the suspension structure is generally provided at the front wheel. . The existing rim wheel suspension structure is usually a suspension spring, which is often disposed on the front fork for fixing the front wheel or on the rotating shaft of the front fork. For example, the ^292544叮 patent case filed on July 25, 2007, and the following: “CN2〇U5〇6〇6Y patent issued on November 19th of the next year, the use of springs is disclosed. The front and rear suspension structure of the wheelchair for shock absorption. The structure of the spring into the shock absorber needs to be placed on the rotating shaft of the front fork, or mounted on the front: so that the overall shape of the wheel is large. Moreover, if the spring is exposed, it will easily affect the shock absorption effect and affect the appearance of the product. If the bullet* is installed inside the outer casing or the casing, it needs to add additional matching parts, which makes the structure of the product too complicated. Increase the manufacturing cost, and increase the volume and weight of the product. [New content] The technical problem to be solved in this creation is to provide a wheelchair front fork suspension structure with simple structure and light weight. M416458 To solve the above technical problems, this creation The technical solution is: a wheelchair front suspension structure "the wheelchair front wheel is mounted on a front and a lower fork body, the front fork is provided with a mandrel, and the front of the front winter is provided with a u-shaped body, The mandrel is mounted on the upper body of the u-shaped body. The U-shaped groove formed by the U-shaped body is provided with an elastic shock-absorbing block. The shock-absorbing block is provided with a mounting hole relative to the mandrel position for installation. When the threaded section of the lower part of the mandrel extends into the mounting hole, a nut is passed under the mounting hole and locked on the threaded section of the mandrel. The shock block is disposed opposite the upper body of the U-shaped body. There is a slot, and the shock block is inserted into the upper piece of the U-shaped body from the opening side of the U-shaped body with the slot in the ampoule. The shock block is provided with a striker on both sides. The U-shaped body is formed. The end of the u-shaped groove away from the opening has a large groove diameter and the groove at one end of the opening is small.
一個具有彈性的 當，且安裝時從 I)形體的一側插入到υ形槽内。One is elastic and is inserted into the beak groove from one side of the I) body during installation.
&標·通過u形體兩辦之間的彈 設置& mark · through the u-shaped body between the two settings
在UAt U
性變形， 的效果。 精簡，重 M416458 形才曰内還可再設置以塑料或橡膠製成的避震塊、 提高避震效果。 進一步 【實施方式】 下面結合圖式和具體實施例對本創作作進—步々、，、 〃本創作所揭不的是—種輪椅前又避震結構，如坌述 及第—圖所不’為本創作的第一較佳實施例。所述圖 前輪9安裝在一前^ 的輪椅 别又1上，該前又1上安裝有一芯輪 -玄心轴2的±段通過轴承安裝在#椅的支架i ( 椅支架在圖中均未畫出）。由於軸承的設置，使前又厂輪 以做360度旋轉’從而可帶動前輪同步旋轉。 ° 本創作的關鍵在於··所述的前又丨下方設有又體11 用於女裝前輪9，其上方設有一個u形體i 2，所述的芯軸 2安裝在該u形體12的上方片體上。 心 由於前叉1的上方設置了 U形體12,通過u形體12 兩片體之間的彈性變形’可消除部分從前輪9傳來的震動 力’如第二圖所示’從而達到減震的效果。 為了進一步提高減震效果，本創作可以在TJ形體1 2 的ϋ形槽之内設置一個具有彈性的避震塊，如第三圖至第 五圖所示的第二實施例即為此種結構。所述的避震塊3可 以以塑料材質製成，在11形體1 2的ϋ形槽内增加了避震 塊3之後’通過該避震塊3可以吸收部分來自前輪的震動 力’從而增加避震效果。使用者可以根據不同的使用場合 ’以及使用者的重量來選擇不同硬度的避震塊，廠家也可 以用不同顏色的避震塊表示不同的硬度，以供使用者選用 5 M416458 為了方便安裝’所述避震塊3相對芯轴2位置可設置 一安裝孔31，所述的ϋ形體12的下方片體上設有安裝槽 13。安裝時，將芯軸2下段的螺紋段21伸入該安裝孔31， 再以一螺帽4從安裝孔31下方穿過以鎖固在芯轴2的嫘 紋段21上。此外’為了使避震塊3安裝後不晃動，所述 避囊塊3相對前叉1的U形體12.的上方片體還設置有 插槽3 2 ’安裝時將避震塊3以其插槽3 2從U形體1 2開口 一側插在U形體1 2的上方片體上，然後將芯軸2下段的 螺紋段21伸入安裝孔31由螺帽4鎖固，芯軸2上的凸台 22則抵於避震塊3的上端面將避震塊3壓緊固定。再者， 為了使產品外觀簡潔美觀，所述的避震塊3兩側可再設置 一擋片33 ’安裝後’則兩側的擋片33將U形體12遮擋在 避震塊3内，U形體12被包覆於避震塊3之内，也就是說 從外觀看僅能看到避震塊3，因此外觀更為簡潔美觀。 如第六圖、第七圖所示，為本創作的第三實施例。本 實施例與上述第一實施例的區別在於：所述前叉1的U形 體12所形成的U形槽結構為遠離開口一端槽徑大，而開 口 一端的槽徑小。這種結構的改變是為適用以塑料製成的 前叉，由於塑料的強度不如金屬製成強，實施例一和二所 述的前又可以以金屬材質製成，U形體的壁厚較小且壁厚 一致也可以滿足強度要求，而對於以塑料材質製成的前叉 來說’通過增加槽内部的槽徑而較小槽外側的槽徑，在滿 足彈性變形的前提下可以保證強度要求。 M416458Sexual deformation, the effect. Streamlined, heavy M416458 Shapes can also be equipped with shock absorbers made of plastic or rubber to improve shock absorption. Further [Embodiment] The following is a combination of the drawings and the specific embodiments for the creation of the present invention, and the 〃 创作 创作 是 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅 轮椅This is the first preferred embodiment of the creation. The front wheel 9 of the figure is mounted on the front and rear of the wheelchair, and the front side is mounted with a core wheel - the ± section of the sinusoidal shaft 2 is mounted on the bracket of the # chair by the bearing (the seat bracket is in the figure) Not shown). Due to the setting of the bearing, the front and the factory wheel can be rotated 360 degrees, which can drive the front wheel to rotate synchronously. ° The key to this creation is that the front body is provided with a body 11 for the front wheel 9 of the women's wear, and a u-shaped body i 2 is arranged above the mandrel 2, and the mandrel 2 is mounted on the u-shaped body 12. Above the sheet. Since the U-shaped body 12 is disposed above the front fork 1, the elastic deformation between the two bodies of the u-shaped body 12 can eliminate the vibration force transmitted from the front wheel 9 as shown in the second figure, thereby achieving shock absorption. effect. In order to further improve the shock absorbing effect, the present invention can provide an elastic shock absorbing block in the ϋ-shaped groove of the TJ-shaped body 12, and the second embodiment shown in the third to fifth figures is such a structure. . The shock absorbing block 3 can be made of a plastic material, and after the shock absorbing block 3 is added in the ϋ-shaped groove of the 11-shaped body 12, the vibration force from the front wheel can be absorbed by the shock absorbing block 3, thereby increasing the avoidance Shock effect. Users can choose shock absorbers of different hardness according to different usage occasions and the weight of the user. Manufacturers can also use different color shock absorbers to indicate different hardnesses for users to choose 5 M416458 for easy installation. A mounting hole 31 may be disposed at a position of the damper block 3 relative to the mandrel 2, and a mounting groove 13 is disposed on the lower piece of the squat body 12. During installation, the threaded section 21 of the lower section of the mandrel 2 is inserted into the mounting hole 31, and a nut 4 is passed under the mounting hole 31 to be locked to the ridge section 21 of the mandrel 2. In addition, in order to prevent the shock absorbing block 3 from being swayed after installation, the escaping block 3 is further provided with a slot 3 2 with respect to the upper body of the U-shaped body 12. of the front fork 1 The groove 3 2 is inserted from the open side of the U-shaped body 1 2 on the upper piece of the U-shaped body 12, and then the threaded section 21 of the lower stage of the mandrel 2 is inserted into the mounting hole 31 and locked by the nut 4, on the mandrel 2. The boss 22 presses the suspension block 3 against the upper end surface of the suspension block 3 to fix it. Furthermore, in order to make the appearance of the product simple and beautiful, the two sides of the suspension block 3 can be further provided with a baffle 33 'after installation', then the baffles 33 on both sides block the U-shaped body 12 in the shock block 3, U The body 12 is covered in the shock block 3, that is to say, only the shock block 3 can be seen from the outside, so that the appearance is more compact and beautiful. As shown in the sixth and seventh figures, the third embodiment of the present creation. The difference between the embodiment and the first embodiment is that the U-shaped groove formed by the U-shaped body 12 of the front fork 1 has a large groove diameter away from the opening end and a small groove diameter at one end of the opening. This structural change is made for the front fork made of plastic. Since the strength of the plastic is not as strong as that of the metal, the first and second embodiments can be made of metal, and the wall thickness of the U-shaped body is small. And the wall thickness can also meet the strength requirement. For the front fork made of plastic material, 'by increasing the groove diameter inside the groove and the groove diameter outside the groove, the strength requirement can be ensured under the premise of satisfying the elastic deformation. . M416458
形槽内即可完成安裝。 【圖式簡單說明】The installation can be completed in the groove. [Simple description of the map]
第二圖：係本創作結構第—實施例的側視圖。 第二圖.係本創作結構第二實施例的立體分解圖。 第西圖.係本創作結構第二實施例的立體組合圖。 第五圖.係本創作結構第二實施例的組合剖視圖。 第六圖：係本創作結構第三實施例的立體示意圖。 第七圖：係本創作結構第三實施例的側視圖。 第八圖：係本創作結構第四實施例的立體分解圖。 第九圖：係本創作結構第四實施例的立體組合圖。 第十圖：係本創作結構第四實施例的組合剖視圖。 【主要元件符號說明】 (1)前又 (1 2 ) U形體 (2 )芯軸 (22)凸台 (31)安裝孔 (33)擋另 (5 )避震塊 (11 )叉體 (13)安裝槽 (21)螺紋段 (3 )避震塊 (32)插槽 (4 )螺帽 (9)輪椅前輪Second Figure: A side view of the first embodiment of the present authoring structure. Fig. 2 is an exploded perspective view showing a second embodiment of the present creation structure. The figure is a three-dimensional combination diagram of the second embodiment of the present creation structure. Fig. 5 is a sectional view showing the combination of the second embodiment of the present creation structure. Figure 6 is a perspective view showing a third embodiment of the present creation structure. Figure 7 is a side view of a third embodiment of the present authoring structure. Figure 8 is a perspective exploded view of a fourth embodiment of the present authoring structure. Ninth diagram: A three-dimensional combination diagram of the fourth embodiment of the present creation structure. Fig. 10 is a sectional view showing the combination of the fourth embodiment of the present creation structure. [Explanation of main component symbols] (1) Front (1 2 ) U-shaped body (2) Mandrel (22) Boss (31) Mounting hole (33) Blocking (5) Shock block (11) Fork body (13 ) mounting groove (21) threaded section (3) shock block (32) slot (4) nut (9) wheelchair front wheel