200305522 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於機車之座墊鎖裝置及車尾手把的安裝構 . 造’是在可開閉地支承騎士用座墊的車體框架的後部，安 裝··可將上述座墊的關閉狀態鎖定的座墊鎖裝置、及可讓 騎士握持的車尾把手。 【先前技術】 在傳統的機車之座墊鎖裝置及車尾手把的安裝構造中 ’在車體框架所支承的車尾手把是安裝有座墊鎖裝置（例 如參照日本特公平5 — 3 7 9 1 6號公報）。 【發明內容】 [發明欲解決的課題] 在上述的傳統構造中，需要將用來安裝座墊鎖裝置的 專用的托架焊接在車尾手把，會有製造成本變高的缺點。 本發明鑒於這種情況，其目的要提供一種機車之座墊 鎖裝置及車尾手把的安裝構造，不必設置座墊鎖裝置專用 的托架，而是將座墊鎖裝置與車尾手把一起安裝於車體框 架’將構造簡化，進而減低製造成本。 [用以解決課題的手段] 爲了達成上述發明，本發明的第一特徵：在可開閉地 支承騎士用座墊的車體框架的後部，安裝有：可將上述座 -6 - (2) (2)200305522 墊的關閉狀態鎖定的座墊鎖裝置與可讓騎士握持的車尾手 把的機車之座墊鎖裝置及車尾手把的安裝構造，在藉由上 述座墊的底板所覆蓋的位置，藉由共通的螺栓來將上述座 墊鎖裝置及車尾手把一起鎖裝在車體框架。 藉由該第一特徵，不必設置座墊鎖裝置專用的托架， ， 可將座墊鎖裝置與車尾手把一起安裝在車體框架，可將構 m 造簡化，進而可減低製造成本。 而本發明除了第一特徵之外，第二特徵爲··在上述車 鲁 尾手把，是一體地形成有：在關閉狀態的上述座墊的底板 的正下方隔著上述座墊鎖裝置相互相對向配置的左右的一 對防護壁。 藉由該第二特徵，藉由左右的一對防護壁，可以防止 對於座墊鎖裝置的不當動作。並且由於上述防護壁是與車 尾手把一體化，所以不會讓零件增加。 【實施方式】 φ 根據附圖所示的本發明的一實施例來說明本發明的實 施方式。 第1圖是具有本發明的座墊鎖裝置及車尾手把的安裝 構造的機車的側面圖，第2圖是同機車的後部放大側面圖 ，第3圖是顯示同機車的車體框架的後部的側面圖，第4 圖是顯示騎士用座墊的前端部的安裝部周圍的縱剖側面圖 ，第5圖是顯示同座墊的後端部的安裝部周圍的縱剖側面 圖，第6圖是在同座墊的卸下狀態顯示的機車的後端部平 -7- (3) (3)200305522 面圖，第7圖是第6圖的7 — 7線剖面圖，第8圖是座墊 鎖裝置及車尾手把的分解立體圖，第9圖是後擋泥板的前 端安裝部的縱剖面圖，第1 〇圖是第2圖的1 〇 — 1 〇線 放大剖面圖，第1 1圖是第4圖的1 1 一 1 1線放大剖面 圖’第1 2圖是第2圖的1 2 — 1 2線放大剖面圖，第 1 3圖是第2圖的1 3 — 1 3線放大剖面圖，第1 4圖是 第2圖的1 4 一 1 4線放大剖面圖，第1 5圖是第2圖的 1 5 — 1 5線放大剖面圖，第1 6圖是第2圖的1 6 — 1 6線放大剖面圖。 首先，在第1圖〜第3圖，機車Μ的車體框架1 ，是 由：頭管2、從該頭管2的上部後面以緩緩向下傾斜的斜 度向後方延伸，且在中間部向下方彎折的主管3、從頭管 2的下部後面以較大向下傾斜度朝後方延伸的下管4、從 主管3的彎折部前側的左右兩側部向後方延伸的左右的一 對座墊導軌5、連結於座墊導軌5的中間部與主管3的下 端部之間的左右的一對支架6、用來將兩者連接在座墊導 軌5的前端部將其焊接的前部橫構件7、以及用來將兩者 連接在座墊導軌5的後端部將其焊接的後部橫構件8。在 頭管2可轉向地軸支承著用來支承前輪9 f的前叉1 0， 而在主管3的後部，是可上下擺動地軸支承著用來支承後 輪9 r的後叉1 1 ，在後叉1 1與上述座墊導軌5之間安 裝有後避震器1 2。 在主管3及下管4的下端分別形成有引擎懸架1 3、 1 4 ，藉此來支承引擎E的前後兩端部。該引擎E的輸出 -8- (4) (4)200305522 ’是經由被收容在安裝於後叉1 1的鏈條箱1 5內的鏈條 傳動裝置而被傳達到後輪9 r 。 在引擎E的上方，是配置有被搭載支承於主管3的油 相1 8。此時’突出設置於油箱1 8的後端的舌片1 8 a ’是經由彈性構件2 9藉由螺栓2 8而被固定在前部橫構 件7 〇 在藉由主管3、座墊導軌5及支架6所圍繞的三角形 的空間配設有電池或空氣濾淸器等的副機件1 9 (參照第 3圖），而把安裝於座墊導軌5的後擋泥板5 0的上部所 構成的小置物箱2 0配置在左右的座墊導軌5之間，把騎 士用的雙人式座墊2 1可裝卸也就是可開閉地安裝在左右 的座墊導軌5，而從上方覆蓋副機件1 9及小置物箱2〇 。將從左右兩側覆蓋副機件1 9的左右的一對側車殼2 2 可裝卸地安裝在車體框架1。 藉由第4圖及第5圖來針對上述座墊21的安裝構造 來加以說明。 在座墊2 1的底板2 1 a ，是設置有：可插拔地被插 入到上述橫構件7的下側的支承片2 3、載置於左右的座 墊導軌5上的複數的彈性構件2 4、以及藉由設置在後部 橫構件8上的座墊鎖裝置2 6所保持的鎖定銷栓2 5。於 是，如果將支承片2 3插入到前部橫構件7的下側，在座 墊導軌5上一邊壓縮彈性支承構件2 4 —邊將鎖定銷栓 2 5卡止在座墊鎖裝置2 6的話，則可以不會搖晃地將座 墊2 1保持在座墊導軌5上，並且藉由該座墊2 1可以保 -9- (5) (5)200305522 護副機件1 9或小置物箱2 0使其免於不當操作的影響。 如果解除座墊鎖裝置2 6的作動的話，則可將座墊2 1從 座墊導軌5卸下，則可進行副機件1 9的維修或將東西拿 進拿出到小置物箱2 0。 藉由第5圖〜第8圖，針對上述座墊鎖裝置2 6、與 用來議乘坐於座墊2 1的後部的騎士握持的車尾手把2 7 的安裝構造來加以說明。 座墊鎖裝置2 6及車尾手把2 7是藉由共通的複數的 螺栓3 1而一起被鎖裝在後部橫桿構件8上。也就是說， 座墊鎖裝置2 6 ，是具備有在左右兩端部具有安裝孔3 2 的基座板30。另一方面，車尾手把27，是作成在平面 來看爲U字型以圍繞上述座墊2 1的後端部，而在形成於 其左右兩前端部的朝向內側的一對托架3 3 ，是穿設有對 應於上述基座板3 0的安裝孔3 2的左右的一對安裝孔 3 4，在後部橫構件8，是焊接有對應於上述安裝孔3 2 及前部安裝孔3 4的左右的一對螺栓3 1 。 最初是把座墊鎖裝置2 6的基座板3 0的安裝孔3 2 嵌入到螺栓3 1 ，接著將車尾手把2 7的前部安裝孔3 4 嵌入到同螺栓3 1 ，藉由將螺母3 4螺合、鎖緊到同螺栓 3 1 ’則可以藉由共通的螺栓3 1及螺母3 7來將座墊鎖 裝置2 6的基座板3 0與車尾手把2 7的托架3 3 —起鎖 裝到後部橫構件8。並且，車尾手把2 7的托架3 3 ，是 藉由將在上述左右的螺栓3 1的後方且貫穿該托架3 3的 左右的一對螺栓3 8螺合鎖緊到焊接於後部橫構件8的下 -10- (6) 200305522 面部的螺母3 6，而更堅固地 在車尾手把2 7，不必設 用的托架，可以將座墊鎖裝置 裝在車體框架1的後部橫構件 可減低製造成本。 如第7圖所示，在車尾手 是一體地形成有將座墊鎖裝置 的左右的一對防護壁3 9，該 墊2 1被固定在固定位置時， 2 1 a的左右的凹部4 0。左 2 1的底板2 1 a的左右側壁 墊鎖裝置2 6的不當操作。並 車尾手把2 7 —體化，而不會 在座墊鎖裝置2 6，在基 有隆起剖面爲门字型的殻體部 內，鎖定柄4 1的後端部是經 部3 0 a。在該鎖定柄4 1的 向一端部之間，是張設有將鎖 壓的鎖定彈簧4 3。在基座板 定彈簧4 3的朝向彈壓力方向 4 1 ，當抵接於該擋塊4 4時 側部面對於開口於殻體部3 〇 是，當將座墊2 1的上述鎖定 ，鎖定銷栓2 5的叉形的大頭 被固定到後部橫構件8。 置專門安裝座墊鎖裝置2 6 2 6及車尾手把2 7 —起安 8，則可將構造簡化，進而 把2 7的左右的托架3 3， 2 6夾在其間而互相相對向 防護壁3 9的上端部，當座 會伸入到形成於其底板 右的防護壁3 9 ，會與座墊 共同作用，可以防止對於座 且由於上述防護壁3 9是與 讓零件數量增加。 座板3 0的中間部，是形成 30a ，在該殼體部3〇a 由樞軸4 2而被支承在殻體 前端與基座板3 0的左右方 定柄4 1朝向其中一側邊彈 30，是設置有用來限定鎖 的轉動的擋塊4 4，鎖定柄 ，會使該柄部4 1的其中一 a的中央部的導孔4 5。於 銷栓2 5插入到導孔4 5時 部2 5 a會一邊壓退鎖定柄 -11 - (7) (7)200305522 4 1的其中一側部一邊通過，鎖定柄4 1會受到鎖定彈簧 4 3的彈壓力而再轉動向鎖定銷栓2 5側，會卡合於接觸 到大頭部2 5 a的頸部的部分’會將座墊2 1鎖定在預定 的安裝位置。 如第2圖所示，在焊接於其中一方的座墊導軌5的後 端部朝下方延伸的托架4 7安裝有彈簧鎖4 8，附設於該 彈簧鎖4 8的旋轉頭的內端的作動臂（沒有圖示）是經由連 動鋼索4 9 (參照第6圖）被連結在上述鎖定柄4 1的前端 。上述彈簧鎖4 8是僅可藉由特定的鑰匙來加以作動，所 以如果藉由該鑰匙進行彈簧鎖4 8的開鎖操作的話，會牽 動連動鋼索4 9 ，會抵抗鎖定彈簧4 3的彈壓力讓鎖定柄 4 1轉動，而可以將鎖定銷栓2 5解放。 接下來，藉由第5圖〜第11圖，針對覆蓋後輪9r 的上面部的後擋泥板5 0及上述小置物箱2 0來加以說明 〇 如第9圖及第1 0圖所示，後擋泥板5 0 ，是以螺栓 5 2將其前端部固定在車體框架1的支架6所固定著的托 架5 1 ’且藉由以螺栓5 3將其後端部固定在焊接於座墊 導軌5的後端部且下垂的托架5 4，讓後擋泥板被安裝在 車體框架1。 在該後擋泥板5 0的上面部，如第5圖、第7圖及第 1 1圖所示’是一體地形成有上面開放的箱體5 5 ，是以 :該箱體5 5、以及以小螺釘5 6 (參照第1 1圖）結合在 箱體5 5來覆蓋上面部的外殻5 7構成了小置物箱2 〇。 -12- (8) 200305522 在外殼5 7的前端部，是經由可撓 蓋體5 8，將小置物箱2 0的前端 箱2 0，是配置在形成爲腳墊狀的 如前述，如果解除座墊鎖裝置 從車體框架1卸下的話，則可將蓋 拿進拿出至小置物箱2 0。 接下來，藉由第2圖、第14 車殻2 2來加以說明。 由於左右的側車殻2 2是對稱 中一方來加以說明。如第2圖所示 前部側車殼2 2 f 、及與其後端部 2 2 r所構成。 在第2圖、第10圖、及第1 2 2 r ，是將突出設置於其前後方 起6 1卡合於後擋泥板5 0側壁的 以小螺釘6 3將後方下部固定在後 車殻被支承在後擋泥板5 0。 如第1 5圖所示，在其後部側 側面，是以卡止爪6 6與小螺釘6 側車殻2 2 f的後端部的插入口 6 6 5安裝在其構造之間。 另一方面，上述側車殼2 2 f ^ 及第1 3圖所示，將突出設置於其 突起6 8卡合在固定設置於主管3 鉸鏈5 9 —體地連設有 作成可開閉。該小置物 後部橫構件8的下側。 2 6的作動將座墊2 1 體5 8開閉，可將東西 圖〜第1 6圖，針對側 的構造，所以僅針對其 ，側車殼2 2 ，是由·· 相連的後部側車殼 4圖’後部側車殼 向中間部內壁的卡止突 卡止孔62，並且藉由 擋泥板5 0 ，讓後部側 車殻2 2 r的前端部外 7將用來區劃插入前部 4的百葉狀的裝飾板 ，如第2圖、第1 2圖 上方前端部內壁的卡止 的托架6 9的卡止孔 -13- (9) (9)200305522 7 0 ’並且藉由螺栓7 3來將其下方前端部經由隔環7 2 固疋在設置於支架6的托架7 1 ，議前部側車殼被支承在 車體框架1。 此時，前部側車殻2 2 f的後端部，是被插入到上述 插入口 6 4，而以裝飾板6 5覆蓋，而可以提昇其外觀性 〇 並且如第2圖及第1 6圖所示，是以小螺釘7 4來把 前部側車殼2 2 ί的上方中間部與後部側車殻2 2 r的上 方前端部結合在一起，強化了側車殼2 2的剛性，其結合 部是藉由座墊2 1的底板2 1 a的側壁所覆蓋，所以其外 觀也很好。 在第5圖、第6圖及第8圖中，左右的後部側車殻 2 2 r的後贿部’是藉由後車殼7 6相互連結，該後車殼 7 6 ’是藉由以螺栓7 8被固定在上述後部橫構件8的托 架7 7所支承著。在該後車殼7 6的下部是安裝有車尾燈 8 0 〇 本發明並不限定於上述實施例，只要不脫離其主旨範 圍則可進行種種的設計變更。 [發明效果] 如上述藉由本發明的第一特徵，在可開閉地支承騎士 用座墊的車體框架的後部，安裝有：可將上述座墊的關閉 狀態鎖定的座墊鎖裝置、與可讓騎士握持的車尾手把的機 車之座墊鎖裝置及車尾手把的安裝構造，在藉由上述座墊 -14- (10) (10)200305522 的底板所覆蓋的位置，藉由共通的螺栓來將上述座墊鎖裝 置及車尾手把一起鎖裝在車體框架，所以不必設置座墊鎖 裝置專用的托架，可將座墊鎖裝置與車尾手把一起安裝在 車體框架，可將構造簡化，進而可減低製造成本。 藉由本發明的第二特徵，除了第一特徵之外，在上述 車尾手把，是一體地形成有··在關閉狀態的上述座墊的底 板的正下方隔著上述座墊鎖裝置相互相對向配置的左右的 一對防護壁，藉由上述防護壁，可以防止對於座墊鎖裝置 的不當操作。並且由於上述防護壁是與車尾手把一體化， 所以不會讓零件增加。 【圖式簡單說明】 第1圖是具有本發明的座墊鎖裝置及車尾手把的安裝 構造的機車的側面圖。 第2圖是同機車的後部放大側面圖。 第3圖是顯示同機車的車體框架的後部的側面圖。 第4圖是顯示騎士用座墊的前端部的安裝部周圍的縱 剖側面圖。 弟5圖是$頁不同座墊的後端部的安裝部周圍的縱剖側 面圖。 第6圖是在同座墊的卸下狀態顯示的機車的後端部平 面圖。 第7圖是第6圖的7 — 7線剖面圖。 弟8圖是座墊鎖裝置及車尾手把的分解立體圖。 -15- (11) (11)200305522 . 第9圖是後擋泥板的前端安裝部的縱剖側面圖。 第1 0圖是第2圖的1 0 — 1 0線放大剖面圖。 第1 1圖是第4圖的1 1 一 1 1線放大剖面圖。 第1 2圖是第2圖的1 2 — 1 2線放大剖面圖。 第1 3圖是第2圖的1 3 — 1 3線放大剖面圖。 第1 4圖是第2圖的1 4 一 1 4線放大剖面圖。 第1 5圖是第2圖的1 5 — 1 5線放大剖面圖。 第1 6圖是第2圖的1 6 — 1 6線放大剖面圖。 [圖號說明] Μ :機車 1 :車體框架 2 1 :騎士用座墊 2 1 a :底板 2 6 :座墊鎖裝置 2 7 :車尾手把 3 1 :共通螺栓 3 9 :防護壁 -16-200305522 (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention relates to a seat cushion locking device for a locomotive and a mounting structure for a handlebar of a rear end of the locomotive. At the rear, a seat cushion lock device that locks the closed state of the seat cushion, and a rear handlebar that can be held by the rider. [Prior art] In a conventional seat cushion lock device and a rear handlebar mounting structure of a locomotive, the rear handlebar supported on the body frame is equipped with a seat cushion lock device (for example, refer to Japanese Patent Fair 5-3 7 9 16). [Summary of the Invention] [Problems to be Solved by the Invention] In the above-mentioned conventional structure, it is necessary to weld a dedicated bracket for mounting a cushion lock device to a rear handlebar, and there is a disadvantage that the manufacturing cost becomes high. In view of this situation, the present invention aims to provide a seat cushion lock device for a locomotive and a mounting structure for a rear handlebar of the locomotive. It is not necessary to provide a bracket dedicated to the seat cushion lock device, but to connect the seat cushion lock device with the rear handlebar. Installed together on the vehicle body frame will simplify the structure and reduce manufacturing costs. [Means for Solving the Problems] In order to achieve the above-mentioned invention, a first feature of the present invention is that the seat -6-(2) ( 2) 200305522 The seat cushion lock device locked in the closed state of the pad, the locomotive seat cushion lock device and the rear seat handlebar mounting structure which can be held by the rider, are covered by the bottom plate of the seat cushion Position, the seat cushion lock device and the rear handlebar are locked to the vehicle body frame by a common bolt. With this first feature, there is no need to provide a bracket dedicated to the cushion lock device, and the cushion lock device can be installed on the vehicle body frame together with the rear handlebar, which can simplify the construction and reduce the manufacturing cost. In addition to the first feature of the present invention, the second feature is that the handlebar tail handle is integrally formed with each other directly under the bottom plate of the seat cushion in the closed state via the seat cushion lock device. A pair of left and right protective walls arranged opposite to each other. With this second feature, improper operation of the seat cushion lock device can be prevented by a pair of left and right protective walls. And because the protective wall is integrated with the rear handlebar, it will not increase the number of parts. [Embodiment] φ An embodiment of the present invention will be described with reference to an embodiment of the present invention shown in the drawings. FIG. 1 is a side view of a locomotive having a seat cushion lock device and a rear handlebar mounting structure of the present invention, FIG. 2 is an enlarged side view of a rear portion of the same locomotive, and FIG. 3 is a view showing a body frame of the same locomotive A side view of the rear portion, FIG. 4 is a longitudinal sectional side view showing the periphery of the mounting portion of the front end portion of the rider seat cushion, and FIG. 5 is a longitudinal sectional side view showing the periphery of the mounting portion of the rear end portion of the seat cushion. Fig. 6 is a flat view of the rear end of the locomotive shown in the removed state of the same seat cushion. (3) (3) 200305522, Fig. 7 is a sectional view taken along line 7-7 of Fig. 6, and Fig. 8 Is an exploded perspective view of the seat pad lock device and the rear handlebar, FIG. 9 is a longitudinal sectional view of a front mounting portion of a rear fender, and FIG. 10 is an enlarged sectional view taken along line 10--10 of FIG. FIG. 11 is an enlarged cross-sectional view taken along line 1 1 to 11 of FIG. 4 'FIG. 12 is an enlarged cross-sectional view taken along line 1 2 — 1 2 of FIG. 2, and FIG. 13 is a view taken from FIG. The enlarged sectional view at line 1 3, FIG. 14 is an enlarged sectional view at line 1 4 to 14 of FIG. 2, and the enlarged view at line 15 is the enlarged sectional view at line 1 5-1 5 of FIG. 2, and FIG. 16 is 1 6 — 1 6 in Figure 2 An enlarged cross-sectional view of FIG. First, in FIGS. 1 to 3, the body frame 1 of the locomotive M is formed by a head pipe 2 extending from the upper and rear sides of the head pipe 2 to a rearward slope with a gentle downward slope, and in the middle. The main pipe 3 bent downward, the lower pipe 4 extending rearwardly with a large downward inclination from the lower back of the head pipe 2, and the left and right one which extends rearward from the left and right sides of the front side of the bent portion of the main pipe 3. A pair of left and right brackets 6 for the seat cushion guide 5 and a pair of left and right brackets connected between a middle portion of the seat cushion guide 5 and a lower end portion of the main pipe 3, and a front part for welding the two to the front end of the seat cushion guide 5 and welding them. A partial cross member 7 and a rear cross member 8 for connecting the two to the rear end portion of the seat rail 5 and welding them. A front fork 10 for supporting the front wheel 9 f is pivotally supported on the head pipe 2, and a rear fork 1 1 for supporting the rear wheel 9 r is pivotally supported on the rear part of the main pipe 3. A rear shock absorber 12 is installed between the fork 11 and the seat cushion guide rail 5. Engine suspensions 1 3 and 1 4 are formed at the lower ends of the main pipe 3 and the lower pipe 4 to support the front and rear ends of the engine E, respectively. The output of this engine E -8- (4) (4) 200305522 ′ is transmitted to the rear wheels 9 r via a chain transmission housed in a chain box 15 mounted on the rear fork 11 1. Above the engine E, an oil phase 18 is mounted and supported on the main pipe 3. At this time, 'the tongue piece 18a which protrudes from the rear end of the fuel tank 18' is fixed to the front cross member 7 through the elastic member 29 and the bolt 28, and the main member 3, the seat cushion guide 5 and The triangular space surrounded by the bracket 6 is provided with auxiliary devices 19 (refer to FIG. 3) such as a battery or an air filter, and is constituted by an upper portion of a rear fender 50 mounted on the seat rail 5. The small storage box 20 is arranged between the left and right seat cushion guides 5, and the knight double seat cushion 21 can be detachably mounted, that is, can be opened and closed on the left and right seat cushion guides 5, and the auxiliary parts are covered from above. 19 and small storage box 20. A pair of left and right side car shells 2 2 covering the sub-machineries 19 from the left and right sides are detachably mounted on the vehicle body frame 1. The mounting structure of the seat cushion 21 will be described with reference to Figs. 4 and 5. The bottom plate 2 1 a of the seat cushion 21 is provided with a support piece 2 that can be inserted into the lower side of the cross member 7 and a plurality of elastic members placed on the left and right seat cushion rails 5. 2 4 and a lock pin 25 held by a seat cushion lock device 2 6 provided on the rear cross member 8. Then, if the support piece 2 3 is inserted under the front cross member 7 and the elastic support member 2 4 is compressed on the seat cushion guide 5-the lock pin 2 5 is locked to the seat cushion lock device 2 6 , You can keep the seat cushion 2 1 on the seat cushion guide 5 without shaking, and the seat cushion 2 1 can protect the 9-9 (5) (5) 200305522 auxiliary protection mechanism 19 or a small storage box. 2 0 to protect it from improper operation. If the seat cushion locking device 26 is released, the seat cushion 21 can be removed from the seat cushion guide rail 5, and the auxiliary parts 19 can be repaired or things can be put in and out to the small storage box 20. . With reference to FIGS. 5 to 8, the mounting structure of the above-mentioned seat cushion lock device 26 and the rear handlebar 27 held by the rider to be seated on the rear portion of the seat cushion 21 will be described. The seat cushion lock device 26 and the rear handlebar 27 are locked together to the rear cross member 8 by a plurality of bolts 31 in common. That is, the seat cushion lock device 2 6 includes a base plate 30 having mounting holes 3 2 at both left and right ends. On the other hand, the rear handlebar 27 is U-shaped in plan view to surround the rear end portion of the seat cushion 21, and a pair of brackets 3 formed on the left and right front end portions facing inward. 3 is a pair of left and right mounting holes 3 4 corresponding to the mounting holes 32 corresponding to the base plate 30, and the rear cross member 8 is welded to the mounting holes 3 2 and the front mounting holes. A pair of left and right bolts 3 1 3 3. Initially, the mounting holes 3 2 of the base plate 30 of the seat pad lock device 2 6 are fitted into the bolts 3 1, and then the front mounting holes 3 4 of the rear handlebars 2 7 are fitted into the same bolts 3 1. If the nut 3 4 is screwed and locked to the same bolt 3 1 ′, the base plate 3 0 of the seat cushion locking device 2 and the rear handle 2 7 can be connected by the common bolt 3 1 and the nut 3 7. The bracket 3 3 is fitted to the rear cross member 8 with a lock. The bracket 3 3 of the rear handlebar 27 is screwed to the rear part by screwing a pair of bolts 3 8 behind the left and right bolts 31 and penetrating through the left and right of the bracket 33. The lower part of the cross member 8-10- (6) 200305522 The nut 3 6 on the face, and the handle 2 7 on the rear of the car is more sturdy. There is no need for a bracket. The seat cushion lock device can be installed on the body frame 1 The rear cross member reduces manufacturing costs. As shown in FIG. 7, a pair of left and right protective walls 39 are formed integrally with the left and right seat cushion locks at the rear of the vehicle. When the pad 21 is fixed in a fixed position, left and right recesses 4 of 2 1 a are formed. 0. Improper operation of the left and right side plates of the bottom plate 2 1 a of the left 2 1 and the pad lock device 26. The rear handlebar 2 is integrated into the body of the car without being locked in the seat cushion locking device 26. In the housing part which has a bulged cross-section in the shape of a door, the rear end of the locking handle 4 1 is a warp part 3 0 a . Between the one end portions of the lock lever 41, a lock spring 43 is provided in a tension state. In the direction of the spring pressure 4 1 of the base plate fixing spring 4 3, when the abutment is against the stopper 4 4, the side surface is open to the housing portion 3. The fork-shaped large head of the pin 25 is fixed to the rear cross member 8. If you install a special seat cushion lock device 2 6 2 6 and the rear handlebar 2 7-King 8, you can simplify the structure, and then sandwich the left and right brackets 3 3, 2 6 between them and face each other. At the upper end of the protective wall 39, when the seat extends into the protective wall 39 formed on the right side of the bottom plate, it will work with the seat cushion, which can prevent the seat and increase the number of parts due to the above-mentioned protective wall 39. The middle portion of the seat plate 30 is formed as 30a. The housing portion 30a is supported by the pivot 42 at the front end of the housing and the left and right fixed handles 41 of the base plate 30 facing one side. The spring 30 is provided with a stopper 4 4 for restricting the rotation of the lock, and the handle is locked to make a guide hole 45 in the central portion of one of the handles 41 a. When the pin 2 5 is inserted into the guide hole 4 5 when the part 2 5 a is pushed back, the lock lever -11-(7) (7) 200305522 4 1 passes through one side, and the lock lever 4 1 receives the lock spring. 4 3 spring force, and then turned to the locking pin 25 side, it will be engaged with the part that touches the neck of the large head 2 5 a 'will lock the seat cushion 21 in a predetermined installation position. As shown in FIG. 2, a spring lock 4 8 is attached to a bracket 4 7 extending downward from a rear end portion of the seat cushion rail 5 welded to one of the seat rails, and an inner end of a rotary head attached to the spring lock 4 8 is actuated. An arm (not shown) is connected to the front end of the lock lever 41 via an interlocking wire 49 (see FIG. 6). The above-mentioned spring lock 48 can only be actuated by a specific key, so if the unlocking operation of the spring lock 4 8 is performed by the key, the wire rope 4 9 will be affected and the spring pressure of the lock spring 4 3 will be resisted. The lock handle 41 is turned, and the lock pin 2 5 can be released. Next, referring to FIGS. 5 to 11, the rear fender 50 covering the upper surface of the rear wheel 9r and the small storage box 20 described above will be described as shown in FIGS. 9 and 10. The rear fender 50 is a bracket 5 1 ′ fixed to the front end portion of the body frame 1 with a bolt 5 2 and the rear end portion is fixed to the welding by a bolt 5 3 A hanging bracket 54 is attached to the rear end portion of the seat cushion guide rail 5 so that a rear fender is attached to the vehicle body frame 1. As shown in FIG. 5, FIG. 7 and FIG. 11, the upper face of the rear fender 50 is formed integrally with a box 5 5 having an open upper surface, so that the box 5 5, A housing 5 7 that covers the upper surface with a small screw 5 6 (see FIG. 11) and is combined with the case 5 5 constitutes a small storage box 20. -12- (8) 200305522 At the front end of the housing 57, the small front storage box 20 is placed on the front end of the small storage box 20 through the flexible cover 58, as described above. When the seat cushion lock device is removed from the vehicle body frame 1, the cover can be taken in and out to the small storage box 20. Next, description will be given with reference to FIG. 2 and the 14th vehicle housing 22. The left and right side shells 22 will be described as being symmetrical. As shown in Fig. 2, the front side shell 2 2 f and its rear end portion 2 2 r are configured. In Figs. 2, 10, and 1 2 2 r, the rear lower part is fixed to the rear vehicle with small screws 6 3 engaging with the rear fender 5 0 from the front and rear 6 1 and engaging with the side wall of the rear fender 5 0. The shell is supported on the rear fender 50. As shown in FIG. 15, an insertion opening 6 6 5 at a rear end portion of the rear side shell 2 2 f of the rear side side of the rear side is installed between the structure. On the other hand, as shown in the above-mentioned side shell 2 2 f ^ and FIG. 13, the protrusions 6 8 protrudingly provided on the side shells are engaged with the main body 3 fixedly provided on the main pipe 3 and the hinges 5 9 are integrally connected to be opened and closed. The lower side of the rear cross member 8 of the small storage. The action of 2 6 opens and closes the seat cushion 2 1 body 5 8. The east-west figure to the 16th figure can be used for the side structure, so only the side shell 2 2 is connected to the rear side shell by ... Figure 4: The rear side car shell faces the locking projection 62 of the inner wall of the middle part, and the fender 5 0 allows the front side outer shell 7 of the rear side car shell 2 2 r to be inserted into the front part 4 The louver-like decorative plate, such as the brackets on the inner wall of the front end in the upper part of FIG. 2 and FIG. 12, 6-9 Locking holes -13- (9) (9) 200305522 7 0 ′ 3 to fix the lower front end portion to the bracket 7 1 provided on the bracket 6 through the spacer ring 7 2, and the front side shell is supported by the vehicle body frame 1. At this time, the rear end portion of the front side shell 2 2 f is inserted into the above-mentioned insertion opening 64 and covered with the decorative plate 65, so that its appearance can be improved. As shown in FIG. 2 and FIG. As shown in the figure, the upper middle portion of the front side car shell 2 2 ί and the upper front end portion of the rear side car shell 2 2 r are joined by small screws 7 4 to strengthen the rigidity of the side car shell 2 2. The joint portion is covered by the side wall of the bottom plate 2 1 a of the seat cushion 21, so its appearance is also good. In FIGS. 5, 6 and 8, the rear bridging portions 'of the left and right rear side shells 2 2 r are connected to each other by a rear shell 7 6, and the rear shells 7 6' are connected by The bolt 7 8 is supported by a bracket 7 7 fixed to the rear cross member 8. A rear lamp 800 is attached to the lower part of the rear case 76. The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the subject matter. [Effect of the Invention] As described above, according to the first feature of the present invention, a seat cushion lock device capable of locking the closed state of the seat cushion, and The locomotive seat pad lock device and the rear seat handlebar mounting structure of the locomotive held by the rider are in a position covered by the bottom plate of the aforementioned seat cushion -14- (10) (10) 200305522, by The common bolts are used to lock the seat cushion lock device and the rear handlebar together to the vehicle body frame, so it is not necessary to provide a bracket for the seat cushion lock device, and the seat cushion lock device can be installed in the vehicle together with the rear handlebar. The body frame can simplify the structure, which can reduce manufacturing costs. According to the second feature of the present invention, in addition to the first feature, the rear handlebar is integrally formed with the seat pads in a closed state directly opposite to each other via the seat pad lock device. The pair of left and right protective walls arranged to the above can prevent the improper operation of the seat cushion lock device. And because the above-mentioned protective wall is integrated with the handlebar of the rear of the vehicle, the number of parts will not be increased. [Brief description of the drawings] Fig. 1 is a side view of a locomotive having a seat cushion lock device and a rear handlebar mounting structure according to the present invention. Fig. 2 is an enlarged side view of a rear portion of the same locomotive. FIG. 3 is a side view showing a rear portion of a body frame of the same locomotive. Fig. 4 is a longitudinal cross-sectional side view showing the periphery of the mounting portion of the front end portion of the knight seat cushion. Fig. 5 is a longitudinal sectional side view around the mounting portion of the rear end portion of the different seat cushion. Fig. 6 is a plan view of a rear end portion of the locomotive shown in a removed state of the seat cushion. Fig. 7 is a sectional view taken along line 7-7 in Fig. 6. Brother 8 is an exploded perspective view of the seat cushion lock device and the rear handlebar. -15- (11) (11) 200305522. Fig. 9 is a longitudinal sectional side view of the front end mounting portion of the rear fender. Fig. 10 is an enlarged cross-sectional view taken along line 10-10 in Fig. 2. Fig. 11 is an enlarged cross-sectional view taken along line 1 1-1 1 in Fig. 4. Fig. 12 is an enlarged sectional view taken along line 1 2-12 in Fig. 2. Fig. 13 is an enlarged sectional view taken along line 1 3-1 3 in Fig. 2. FIG. 14 is an enlarged cross-sectional view taken along line 1 4 to 14 of FIG. 2. FIG. 15 is an enlarged cross-sectional view taken along line 15-15 of FIG. 2. Fig. 16 is an enlarged cross-sectional view taken along line 16-16 in Fig. 2. [Illustration of drawing number] Μ: Locomotive 1: Body frame 2 1: Knight seat cushion 2 1 a: Floor plate 2 6: Cushion lock device 2 7: Rear handlebar 3 1: Common bolt 3 9: Protective wall- 16-