201031551 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種自行車座墊，且特別是有關於一 種自行車座墊束緊機構。 【先前技術】 近幾年’由於能源危機的影響以及環保意識的高涨， • 各國都提倡節能減碳，使得騎自行車成為一種風潮，不僅 可知省能源’又可使忙碌的現代人獲得適當的運動。也因 此使得現代人對於自行車的各種機構及裝備需求越來越 多’以使得在騎自行車時可獲得較舒適的姿勢，進而避免 造成運動傷害。 為了獲得較舒適的姿勢及避免運動傷害，許多自行車 的座墊角度以及座墊與手把間的距離為可調式。一般座墊 底部設有座墊底桿，上述可調式自行車之座墊為利用上下 ❹ 蓋夹持座墊底桿，藉由調整上下蓋夾持在座塾底桿不同處 來調整座墊與手把間的距離。而下蓋之底面與立桿之頂面 皆為弧形面，可相互配合，藉以調整座墊角度。並進而以 螺桿穿設立桿、下蓋與上蓋，再以固定件將立桿、下蓋與 上盘鎖固在一起。 然而，以上述方法將立桿、下蓋與上蓋鎖固在一起容 易有下述問題。當使用者需要調整座墊角度或座墊與手把 間之距離時，使用者鬆開固定件至方便調整之狀態後，無 法以微調方式進行調整，因立桿、下蓋與上蓋三者之間會 201031551 馬上互相鬆脫，使得整個座墊之角度與距離都產生無法預 期的鬆動，無法讓原本無需調整的位置或角度保持在原本 •之狀態。也因此，使得使用者無法單獨調整座墊角度或座 • 墊距離’在使用方便性上及調整精準度上皆待進一步改善。 【發明内容】 因此本發明的目的就是在提供一種可單獨調整座墊角 Φ 度或座墊與手把間距離之機構，並讓使用者可對座墊角度 或座墊與手把間距離進行微調。 依照本發明一實施例，一種座墊束緊機構包含座墊固定 座、夾持件、螺桿與固定件。其中座墊固定座具有穿孔。夾 持件用來夾持座塾底桿以固定座藝，且夾持件之底面與座塾 固定座之頂面相對合。固定件具有開口朝向夾持件之凹槽， 且凹槽内具有彈性組件。螺桿貫穿座墊固定座之穿孔與夾持 件’並以固定件鎖固。其中固定件之彈性組件與夾持件接觸， Φ 且彈性組件之彈力與螺桿鎖固方向相反。 上述彈性组件包含抵件’抵件位於凹槽内，且一部份之 抵件由凹槽之開口伸出’並與夾持件接觸。 上述固定件凹槽之開口小於抵件之最大寬度，且固定 件包含鎖孔與擋件，其中鎖孔相對位於凹槽之開口，而擋 件位於鎖孔處。 依照本發明另一實施例，一種座墊束緊機構包含座墊固 疋座、夾持件、螺桿與固定件。其中座塾固定座具有穿孔。 夾持件用來夾持座墊底桿以固定座墊，且夾持件之底面與座 5 201031551 !固3之頂：相對合。螺桿具有螺桿頭、凹槽、與彈性組 4 ”杜目、1凹θ位於螺捍頭’且凹槽之開口朝向螺桿方向， ，拍位槽内。上述螺桿貫穿座墊固定座之穿孔與 餓 Mk件鎖固’且螺桿之彈性組件與座墊固定座 接觸。 上ί螺桿包含抵件，抵件位於凹槽内，且-部份之抵 件由凹槽之開口伸出，並與騎D定座接觸。 ❹ 上述螺桿凹槽之開口小於抵件之最大寬度，且螺桿包 含鎖孔與擒件。鎖孔相對於凹槽之開口，擒件位於鎖孔處。 應用本發明之座墊束緊機構，由於彈性組件具有一預 力可施予座整固定座與夾持件，使得在鬆開固定件時，座 墊固定座與夾持件間可仍然維持原有之狀態。因此，使用 者僅需克服部份預力，即可單獨移動座墊底桿以調整座墊 與手把間距離，而不至影響夾持件與座墊固定座之對合； 或者調整夾持件與座墊固定件之對合，而不至影響爽持件 夾持座墊底桿之狀態，方便使用者單獨調整座塾位置或角 度。 【實施方式】 請參照第1圖’其緣示依照本發明一實施例的一種座 墊束緊機構之結構示意圖。座墊束緊機構100包含座墊固 定座110、夾持件120、固疋件130與螺桿140。以螺桿140 穿設座墊固定座110與夾持件120，再以固定件13〇鎖固 於螺桿140上，以鎖固整個座墊束緊機構100。其中一般 201031551 座墊（未繪示）底部之座墊底桿16〇穿設於夾持件i2〇中， 以夾持件120夾持座墊底桿160，以固定座墊。 請參照第2目’係繪示帛i圖之座墊束緊機構的立艘 - 分解圖。座墊固定座110之頂面為弧面，弧面上具有齒紋 112。如第2圖所示，座墊固定座11〇可為與座墊立管15〇 體成型’並具有穿孔U4。或者是，座墊固定座11〇與 座塾立管150為分開之構件，轉鎖、膠合或銲接方式相 鲁 互結合（未緣示）。 夾持件120係用來夾持座墊底桿16〇，以固定座墊。 夹持件120包含上蓋122與下蓋124。上蓋122底面之兩 =各具有第-凹緣126，而下蓋124頂面之兩對邊則具 f第-凹緣128 ’利用第—凹緣126與第二凹緣128相互 失設以夾持座墊底桿160(如第i圖所示），進而固定座塾。 座塾可利用座墊底桿16〇於上蓋122與下蓋124間平行移 動，以調整座墊與自行車手把間之距離。 ❿ | ^外，夾持件120之下蓋124的底面為弧面，可與座 f疋件110之頂面相對合，使得座墊可調整為各種不同 =角度。較佳為’下4 124之底面具有齒蚊125，可與座 用上之齒紋112相嚙合。因此，使用者更可利 ' 疋座110與下蓋124之齒紋微調座墊之角度，並 方止使用者於調整時’因意外滑動而無法精 = 角度。再者，調整齒紋嚅合時所發出之聲響， 也可幫助使用者精確調整座墊角度。 接著，請參照第3圖，係綠示第！圖中之固定件的結 201031551201031551 VI. Description of the Invention: [Technical Field] The present invention relates to a bicycle seat cushion, and more particularly to a bicycle seat cushion tightening mechanism. [Prior technology] In recent years, due to the impact of the energy crisis and the awareness of environmental protection, • Countries have promoted energy conservation and carbon reduction, making cycling a trend that not only saves energy but also enables busy modern people to get appropriate sports. . Therefore, modern people are increasingly demanding various mechanisms and equipment for bicycles, so that a more comfortable posture can be obtained while riding a bicycle, thereby avoiding sports injuries. In order to obtain a more comfortable posture and avoid sports injuries, the seat cushion angle of many bicycles and the distance between the seat cushion and the handlebar are adjustable. Generally, the bottom of the seat cushion is provided with a bottom pad of the seat cushion, and the seat cushion of the adjustable bicycle is used to clamp the bottom bar of the seat cushion by using the upper and lower sill covers, and the seat cushion and the handlebar are adjusted by adjusting the upper and lower covers to be clamped at different positions of the bottom sill of the seat sill. The distance between them. The bottom surface of the lower cover and the top surface of the pole are curved surfaces, which can cooperate with each other to adjust the angle of the seat cushion. Then, the rod, the lower cover and the upper cover are set by the screw, and the vertical rod, the lower cover and the upper plate are locked together by the fixing member. However, the following problems can be easily solved by locking the uprights, the lower cover and the upper cover together in the above manner. When the user needs to adjust the angle of the seat cushion or the distance between the seat cushion and the handlebar, after the user loosens the fixing member to the state of convenient adjustment, the adjustment cannot be performed in a fine adjustment manner, because the vertical pole, the lower cover and the upper cover are three The 201031551 is immediately released from each other, causing unpredictable looseness of the angle and distance of the entire seat cushion, and it is impossible to maintain the original position and angle without adjustment. Therefore, the user cannot separately adjust the seat cushion angle or the seat cushion distance to be further improved in terms of ease of use and adjustment accuracy. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a mechanism for individually adjusting the angle of the seat cushion Φ or the distance between the seat cushion and the handle, and allowing the user to perform the angle of the seat cushion or the distance between the seat cushion and the handlebar. Fine tune. According to an embodiment of the invention, a seat cushion tightening mechanism includes a seat cushion fixing seat, a clamping member, a screw and a fixing member. The seat cushion fixing seat has a perforation. The clamping member is used for holding the seat bottom bar to fix the seat, and the bottom surface of the clamping member is opposite to the top surface of the seat fixing seat. The fixing member has a groove having an opening facing the holder, and the groove has a resilient member therein. The screw penetrates the perforation of the seat cushion holder and the holder ' and is locked by a fixing member. The elastic component of the fixing member is in contact with the clamping member, Φ and the elastic force of the elastic component is opposite to the locking direction of the screw. The elastic member includes a resisting member, the abutting member being located in the recess, and a portion of the abutting member projecting from the opening of the recess and contacting the retaining member. The opening of the fixing member groove is smaller than the maximum width of the resisting member, and the fixing member comprises a locking hole and a blocking member, wherein the locking hole is opposite to the opening of the groove, and the blocking member is located at the locking hole. In accordance with another embodiment of the present invention, a seat cushion tightening mechanism includes a seat cushion retaining seat, a clamping member, a screw and a fixing member. The seat block has a perforation. The clamping member is used for clamping the bottom pad of the seat cushion to fix the seat cushion, and the bottom surface of the clamping member and the seat 5 201031551 ! The top of the solid 3: opposite. The screw has a screw head, a groove, and an elastic group 4" Dumu, 1 concave θ is located at the screw head" and the opening of the groove faces the screw direction, and the groove is inserted into the groove. The screw penetrates the hole of the seat cushion and is hungry The Mk piece is locked' and the elastic component of the screw is in contact with the seat cushion fixing seat. The upper ί screw includes a resisting member, the abutting member is located in the groove, and the part of the abutting member is extended by the opening of the groove, and is coupled with the D The contact of the screw groove is smaller than the maximum width of the resisting piece, and the screw comprises a locking hole and a tongue. The opening of the locking hole is opposite to the opening of the groove, and the element is located at the locking hole. The tightening mechanism, because the elastic component has a pre-force, can be applied to the fixing seat and the clamping member, so that when the fixing member is loosened, the seat cushion fixing seat and the clamping member can still maintain the original state. Therefore, the use Only need to overcome some of the pre-stress, you can move the seat cushion bottom rod separately to adjust the distance between the seat cushion and the handlebar, without affecting the matching of the clamping member and the seat cushion fixing seat; or adjusting the clamping member and the seat The mating of the pad fixings does not affect the bottom of the holding part The state of the rod is convenient for the user to adjust the position or angle of the seat. [Embodiment] Please refer to FIG. 1 for a schematic structural view of a seat cushion tightening mechanism according to an embodiment of the present invention. 100 includes a seat cushion fixing base 110, a clamping member 120, a fixing member 130 and a screw 140. The seat cushion fixing seat 110 and the clamping member 120 are inserted through the screw 140, and then the fixing member 13 is fixed to the screw 140. The entire seat cushion tightening mechanism 100 is locked. The cushion bottom rod 16 of the bottom of the 201031551 cushion (not shown) is generally disposed in the clamping member i2, and the bottom member of the cushion is clamped by the clamping member 120. 160, to fix the seat cushion. Please refer to the second item's drawing of the stand-up exploded view of the seat cushion tightening mechanism of the 帛i diagram. The top surface of the seat cushion fixing seat 110 is curved and has a tooth surface on the curved surface. 112. As shown in Fig. 2, the seat cushion mount 11 can be formed integrally with the seat cushion riser 15 and has a through hole U4. Alternatively, the seat cushion mount 11 is separated from the seat riser 150. The components, the rotation lock, the gluing or the welding method are combined with each other (not shown). The clamping member 120 is used to hold the bottom of the seat cushion. 16〇, to fix the seat cushion. The clamping member 120 includes an upper cover 122 and a lower cover 124. Two of the bottom surfaces of the upper cover 122 each have a first concave edge 126, and two opposite sides of the top surface of the lower cover 124 have a f-recess The edge 128' is offset from the second recess 128 by the first recessed edge 126 and the second recessed edge 128 to clamp the seat bottom rod 160 (as shown in Fig. i), thereby fixing the seat. The seat can be used with the seat bottom rod 16 The upper cover 122 and the lower cover 124 are moved in parallel to adjust the distance between the seat cushion and the bicycle handlebar. ❿ | ^, the bottom surface of the lower cover 124 of the clamping member 120 is a curved surface, and can be coupled with the seat member 110 The top surfaces are oppositely combined so that the seat cushion can be adjusted to various angles. Preferably, the bottom surface of the lower 4 124 has a toothed mosquito 125 that can be engaged with the tooth print 112 on the seat. Therefore, the user can better adjust the angle of the seat cushion 110 and the lower cover 124 to finely adjust the angle of the seat cushion, and prevent the user from being able to adjust the angle due to accidental sliding. Furthermore, adjusting the sound produced when the ridges are twisted together can also help the user to accurately adjust the seat cushion angle. Next, please refer to Figure 3, which is green! The knot of the fixture in the figure 201031551
構示意圖。固定件130具有螺孔131’可用來使固定件130 螺鎖於螺桿140。凹槽132位於螺孔131兩側且平行於螺 孔131之方向。凹槽132之開口朝向夾持件，且於此實施 例中，凹槽132之開口小於抵件136之最大寬度，並且相 對於凹槽132之開口處具有鎖孔，而鎖孔處之凹槽内壁具 有螺紋。凹槽132内可設置彈性組件，而彈性組件可僅包 含彈性元件134或同時包含彈性元件134與抵件136 ^彈 性元件134可為彈簧或簧片。 於本實施例中，彈性組件同時包含彈性元件134與抵 件136。彈性元件134、抵件136與擋件138由第一開口處 裝設入凹槽132内，且如第3圖所示，彈性元件134介於 抵件136與擋件138之間，而彈性元件134之兩端分別與 抵件136與擋件138接觸。由於凹槽132之開口較抵件136 之最大寬度小，因此抵件136可抵於凹槽132之開口處， 僅有一部分之抵件136由凹槽132之開口穿出，與上蓋122 接觸》 如第3圖所示，彈性元件134可為彈簧。擋件138具 有螺紋，可鎖固於凹槽132之鎖孔處。因此，當固定件n〇 鎖固整個座墊束緊機構1〇〇時，抵件136會抵於上蓋i22 之表面’並壓縮彈性元件134至凹槽132内，此時擋件 可防止彈性元件134與抵件136由鎖孔掉出。 睛參照第2圖，螺桿14()由下往上貫穿座塾固定座ιι〇 二下蓋124與上蓋122，再以固定件130螺鎖於 、干，使座墊固定座11G、下蓋124與上蓋122緊密結 201031551 合，且抵件136抵於上盖122，並壓縮彈性元件134，使彈 性元件134具有一預力。當稍微鬆開固定件13〇時，彈性 • 元件134之預力會產生一向下之彈力，即彈性元件之彈力 . 與螺桿鎖固方向相反，使得抵件136仍然抵於上蓋122上。 因此’夾持件120與座墊固定座11〇仍然可保持原本結合 時之狀態。 此時，若欲調整座藝與手把間之距離，使用者僅需克 服彈性元件134施予上蓋122與下蓋124間之彈力，使上 蓋122與下蓋124產生空隙可供座墊底桿160前後移動， 而不會影響下蓋124與座墊固定座110間之對合，因此， 座墊不會上下旋擺，座墊角度也不會改變。 或者是，欲調整座墊角度時’使用者僅需克服下蓋124 與座塾固定座110間之彈力，使兩者間出現空隙可使下蓋 124移動。且此時，上蓋122與下蓋124仍受到抵件136 往下之力，因此，上蓋122與下蓋124仍然可穩固的夾持 座墊底桿160，使得座墊底桿160不會產生平行的位移， ® 而改變座塾與手把間之距離。 上述螺桿140之螺桿頭142也可具有與固定件13〇相 似之結構（未繪示）。即螺桿兩侧之螺桿頭上具有第一凹 槽，而螺桿之第一凹槽開口朝向螺桿方向，且相對於螺桿 之第一凹槽開口處具有鎖孔’第一凹槽内設置有第一擋件 與第一彈性組件，而第一彈性組件可僅具有第一彈性元件 或同時具有第一彈性元件與第一抵件。且第一凹槽之開口 小於第一抵件之最大寬度，因此僅有一部分之第一抵件由 9 201031551 第一凹槽之開口露出，以於整個座墊束緊機構鎖固時，第 一抵件與座墊固定座接觸，或與座墊固定座一體成形之座 -墊立管接觸。第一檔件則設置於第一凹槽之鎖孔處，防止 第一彈性組件掉落。當稍微鬆開固定件130時，螺桿頭中 之第一彈性組件會施力予座墊固定座與夾持件，使夾持件 120與座墊固定座110仍然保持原本結合時之狀態。 請參照第4圖，係繪示依照本發明另一實施例的一種 座墊束緊機構中固定件的結構示意圖。本實施例中，座墊 ® 束緊機構之座墊固定座、夾持件與螺桿皆與前述實施例相 同，不同之處為固定件230之凹槽僅具有朝向夹持件220 之開口，凹槽内僅設置彈性元件232,直接以彈性元件232 與夾持件220接觸。 或者是，凹槽内設置有抵件（未繪示），彈性元件232 與抵件接觸’再以抵件與夾持件接觸。由於抵件可將整個 彈性元件234壓縮至凹槽内，而單純以彈性元件234與抵 件接觸時，彈性元件234最多僅能被壓縮至與凹槽深度相 同之長度。因此與單純以彈性元件234與夾持件接觸比 較，利用彈性元件配合抵件可產生較大之預力。然而，使 用者調整座墊位置或角度時，也需要較大之力才能克服彈 性元件透過抵件給予夾持件之彈力。因此，使用者可根據 本身之使用情形，挑選不同之固定件結構使用。 请參照第5圖，係繪示依照本發明又一實施例的一種 座塾束緊機構中螺桿的結構示意圖。於此實施例中，座塾 束緊機構之座墊固定座與夾持件皆與前述實施例相同。而 201031551 固定件可為具有螺孔之螺母，或者與前述實施例相同具有 凹槽，而凹槽内具有彈性元件，甚或是具有抵件與/或擋件 之結構。 ^ 此實施例中’螺桿34〇具有螺桿頭342，螺桿頭342 上具有凹槽，且凹槽環繞螺桿本體344。凹槽内設有彈性 組件’彈性組件僅包含彈性元件或同時包含彈性元件與抵 件，而彈性元件可為彈簧或簧片。 ❺ 如第5圖所示’此實施例中凹槽内具有彈性元件346, 當整個座墊束緊機構鎖固時，以彈性元件346與座墊固定 座或與座墊固定座310 —體成形之座墊立管350接觸。或 者是，凹槽内設有彈性元件與抵件，以抵件與座墊固定座 或與座墊固定座一體成形之座墊立管接觸。 綜上所述，應用本發明之座墊束緊機構具有下列優點： 第一，由於鎖固時彈性組件因被壓縮而可獲得一預 力，因此’當鬆開固定件時，彈性組件可直接或間接給予 夾持件與座墊固定座一彈力以保持夾持件與固定件原本結 ®合時之狀態。 第二，使用者僅需克服部份之彈力即可輕易的單獨調 整座墊位置，即座墊與手把間距離，而不會造成座墊之旋 擺’以致於座塾角度改變；或者使用者可單獨調整座墊角 度，而不會造成座墊之平移，以致於座墊與手把間距離改 變。 雖然本發明已以諸實施例揭露如上，然其並非用以限定 本發明，任何熟習此技藝者’在不脫離本發明之精神和範圍 11 201031551 内，當可作各種之更動與潤飾，因此本發明之保護範圍當視 後附之申請專利範圍所界定者為準。 【圖式簡單說明】 為讓本發明之上述和其他目的、特徵、優點與實施例能 更明顯易懂，所附圖式之說明如下： 第1圖係繪示依照本發明一實施例的一種座墊束緊機構 Φ 之結構示意圖。 第2圖係繪示第1圖之座墊束緊機構的立體分解圖。 第3圖係繪示第1圖中之固定件的結構示意圖。 第4圖係繪示依照本發明另一實施例的一種座墊束緊機 構中固定件的結構示意圖。 第5圖係繪示依照本發明又一實施例的一種座墊束緊機 構中螺桿的結構示意圖。 © 【主要元件符號說明】 100 :座墊束緊機構 110 座墊固定座 112 ： 齒纹 114 穿孔 120 : 夾持件 122 上蓋 124 ： 下蓋 125 齒紋 126 ： 第一凹緣 128 第二凹緣 130 : 固定件 131 螺孔 132 ： 凹槽 134 :彈性元件 12 201031551 136 :抵件 138 ： 140 :螺桿 142 ： 150 :座墊立管 160 : 220 :夾持件 230 ： 232 :彈性元件 240 : 310 :座墊固定座 340 ： 342 :螺桿頭 344 ： 346 :彈性元件 350 ： 擋件 螺桿頭 座墊底桿 固定件 螺桿 螺桿 螺桿本體 座墊立管Schematic diagram. The fixing member 130 has a screw hole 131' for screwing the fixing member 130 to the screw 140. The groove 132 is located on both sides of the screw hole 131 and parallel to the direction of the screw hole 131. The opening of the groove 132 faces the clamping member, and in this embodiment, the opening of the groove 132 is smaller than the maximum width of the abutting member 136, and has a locking hole at the opening of the groove 132, and the groove at the locking hole The inner wall is threaded. A resilient member may be disposed within the recess 132, and the resilient member may only include the resilient member 134 or both the resilient member 134 and the resisting member 136. The resilient member 134 may be a spring or a reed. In the present embodiment, the elastic member simultaneously includes the elastic member 134 and the abutting member 136. The elastic member 134, the abutting member 136 and the blocking member 138 are fitted into the recess 132 from the first opening, and as shown in Fig. 3, the elastic member 134 is interposed between the abutting member 136 and the blocking member 138, and the elastic member The two ends of the 134 are in contact with the abutting member 136 and the stopper 138, respectively. Since the opening of the recess 132 is smaller than the maximum width of the abutting member 136, the abutting member 136 can abut against the opening of the recess 132, and only a portion of the abutting member 136 is passed through the opening of the recess 132 to contact the upper cover 122. As shown in Figure 3, the resilient member 134 can be a spring. The stop member 138 is threaded and can be locked to the locking hole of the recess 132. Therefore, when the fixing member n 〇 locks the entire seat tying mechanism 1 ,, the abutting member 136 abuts against the surface of the upper cover i22 and compresses the elastic member 134 into the groove 132, at which time the blocking member can prevent the elastic member The 134 and the abutment 136 are dropped by the keyhole. Referring to FIG. 2, the screw 14 () extends from the bottom to the top of the seat yoke fixing cover 126 and the upper cover 122, and then is screwed and dried by the fixing member 130 to make the seat cushion fixing seat 11G and the lower cover 124. The upper cover 122 is tightly coupled with the upper cover 2010, and the abutting member 136 abuts against the upper cover 122 and compresses the elastic member 134 so that the elastic member 134 has a pre-stress. When the fixing member 13 is slightly loosened, the pre-stress of the elastic member 134 generates a downward elastic force, that is, the elastic force of the elastic member. Contrary to the screw locking direction, the abutting member 136 still abuts against the upper cover 122. Therefore, the holding member 120 and the seat cushion holder 11 can remain in the original combined state. At this time, if the distance between the seat and the handle is to be adjusted, the user only needs to overcome the elastic force between the upper cover 122 and the lower cover 124 of the elastic member 134, so that the upper cover 122 and the lower cover 124 have a gap for the bottom of the seat cushion. The 160 moves back and forth without affecting the cooperation between the lower cover 124 and the seat cushion fixing seat 110. Therefore, the seat cushion does not swing up and down, and the seat cushion angle does not change. Alternatively, when the seat cushion angle is to be adjusted, the user only needs to overcome the elastic force between the lower cover 124 and the seat mount 110 so that a gap occurs between the two to move the lower cover 124. At this time, the upper cover 122 and the lower cover 124 are still subjected to the downward force of the abutting member 136. Therefore, the upper cover 122 and the lower cover 124 can still firmly hold the seat cushion bottom rod 160, so that the seat cushion bottom rod 160 does not generate parallel. The displacement, ® changes the distance between the seat and the handle. The screw head 142 of the screw 140 described above may also have a structure (not shown) similar to the fixing member 13''. That is, the screw heads on both sides of the screw have a first groove, and the first groove opening of the screw faces the screw direction, and has a locking hole at the first groove opening of the screw. And the first elastic component, and the first elastic component may have only the first elastic component or both the first elastic component and the first fastener. And the opening of the first groove is smaller than the maximum width of the first abutting member, so that only a part of the first abutting piece is exposed by the opening of the first groove of 9 201031551, so that when the entire seat cushion tightening mechanism is locked, the first The abutting member is in contact with the seat cushion fixing seat or is in contact with the seat-pad riser integrally formed with the seat cushion fixing seat. The first gear member is disposed at the locking hole of the first recess to prevent the first elastic component from falling. When the fixing member 130 is slightly loosened, the first elastic member in the screw head applies a force to the seat cushion fixing seat and the holding member, so that the holding member 120 and the seat cushion fixing base 110 remain in the original combined state. Referring to FIG. 4, a schematic structural view of a fixing member in a seat cushion tightening mechanism according to another embodiment of the present invention is shown. In this embodiment, the seat cushion fixing seat, the clamping member and the screw of the seat cushioning|clamping mechanism are the same as the foregoing embodiment, except that the groove of the fixing member 230 has only the opening toward the clamping member 220, and is concave. Only the elastic member 232 is disposed in the groove, and the elastic member 232 is directly in contact with the holding member 220. Alternatively, a retaining member (not shown) is disposed in the recess, and the elastic member 232 is in contact with the resisting member, and the engaging member is in contact with the retaining member. Since the abutting member can compress the entire elastic member 234 into the recess, and the elastic member 234 is merely in contact with the resisting member, the resilient member 234 can only be compressed to at most the same length as the recessed portion. Therefore, by simply contacting the elastic member 234 with the holding member, a large pre-force can be generated by the elastic member engaging member. However, when the user adjusts the seat cushion position or angle, a large force is also required to overcome the elastic force imparted to the clamp by the elastic member through the biasing member. Therefore, the user can select different fastener structures for use according to their own use. Referring to FIG. 5, a schematic structural view of a screw in a seat yoke tightening mechanism according to still another embodiment of the present invention is shown. In this embodiment, the seat cushion fixing seat and the holding member of the seat yoke tightening mechanism are the same as those of the foregoing embodiment. And the 201031551 fixing member may be a nut having a screw hole or have the same groove as the foregoing embodiment, and the groove has an elastic member or even a structure having a resisting member and/or a stopper. ^ In this embodiment, the screw 34 has a screw head 342 having a groove on the screw head 342 and a groove surrounding the screw body 344. An elastic component is provided in the recess. The elastic component comprises only the elastic component or both the elastic component and the abutment, and the elastic component may be a spring or a reed. ❺ As shown in Fig. 5, in this embodiment, the recess has an elastic member 346 therein. When the entire cushion tightening mechanism is locked, the elastic member 346 is integrally formed with the seat cushion mount or the cushion mount 310. The seat cushion riser 350 is in contact. Alternatively, the recessed member is provided with an elastic member and a resisting member for contacting the seat cushion holder or the seat cushion riser integrally formed with the seat cushion holder. In summary, the seat cushion tightening mechanism to which the present invention is applied has the following advantages: First, since the elastic component can be compressed to obtain a pre-force when locked, the elastic component can be directly used when the fixing member is loosened. Or indirectly giving the clamping member a resilient force to the seat cushion fixing seat to maintain the state in which the clamping member and the fixing member are originally combined. Second, the user can easily adjust the position of the seat cushion simply by partially overcoming the elastic force, that is, the distance between the seat cushion and the handlebar, without causing the swing of the seat cushion to change the seat angle; or use The seat cushion angle can be adjusted separately without causing the seat cushion to translate so that the distance between the seat cushion and the handlebar changes. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any person skilled in the art can make various changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, advantages and embodiments of the present invention will become more <RTIgt; Schematic diagram of the seat cushion tightening mechanism Φ. Fig. 2 is an exploded perspective view showing the seat cushion tightening mechanism of Fig. 1. Fig. 3 is a schematic view showing the structure of the fixing member in Fig. 1. Fig. 4 is a structural schematic view showing a fixing member in a seat cushion tightening mechanism according to another embodiment of the present invention. Figure 5 is a schematic view showing the structure of a screw in a seat cushion tightening mechanism according to still another embodiment of the present invention. © [Main component symbol description] 100: Seat cushion tightening mechanism 110 Seat mount 112: Tooth 114 Perforation 120: Clamping member 122 Upper cover 124: Lower cover 125 Tooth 126: First concave edge 128 Second concave edge 130 : fixing member 131 screw hole 132 : groove 134 : elastic member 12 201031551 136 : abutting member 138 : 140 : screw 142 : 150 : seat cushion riser 160 : 220 : clamping member 230 : 232 : elastic member 240 : 310 : Seat mount 340 : 342 : Screw head 344 : 346 : Elastic element 350 : Stopper screw head seat bottom rod fixing piece Screw screw screw body seat riser
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