589259 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（〇 【技術領域】 本發明是關於機車之座墊鎖裝置，在開鎖時能夠容易 地進行鎖筒的鑰匙操作，且能夠提高防盜機能，無法用預 定的鑰匙以外的東西開鎖。 【技術背景】 在機車中，一般的方式是將座墊作成開閉式且在座墊 下設置收容空間。這種座墊，是在前部設置鉸鏈並且在後 部設置鉤部，且具有以設置於車體側的座墊鎖裝置來鎖住 該鉤部的構造。而在將座墊鎖裝置打開，也就是將座墊打 開的時候，是把鑰匙***到安裝於車體後部的鎖筒來進行 在一般的情況，是在座墊後下方的後框架側面設置托 架，在托架設置鎖筒，從設置在車體外殼側面的開口裝上 去。此時，在組裝車體外殼時會產生鎖筒與車體外殼的開 口不合適這樣的問題。 作爲不將鎖筒配置在框架而是配置在後擋泥板的機車 的座墊鎖裝置，例如（1 )習知的在日本特開2 0 0 1 — 7 1 7 9 5公報「機車的座墊鎖構造」所記載的構造。（ 2 )作爲座墊鎖裝置的細部的構造，第9圖所示的習知的 構造。 在上述公報（1 )中是記載著座墊鎖構造，是在支承 用來讓共乘者乘坐的後座座墊的座墊軌條的後部安裝第二 橫管，在該橫管安裝用來將後座座墊上鎖的鎖定機構，在 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 裝 訂 (請先閱讀背面之注意事項再填寫本頁) -4- 589259 A7 __B7_ 五、發明説明（2) 覆蓋著後輪的上方的後擋泥板的後面部且在尾燈的下方， 是安裝了用來開啓上述的鎖定機構的鎖筒。 (請先閱讀背面之注意事項再填寫本頁) 在這種座墊鎖裝置，例如，在駕駛者要下車到車子的 側邊取出收容在座墊下的東西，然後再上車的時候，駕駛 者爲了要從車輛的側邊打開座墊而要向車輛後方移動，在 將鑰匙***鎖筒進行過開鎖操作之後，再回到車子的側邊 ，座墊的開鎖動作變的非常麻煩。且由於鎖筒在尾燈的下 方，所以很難確認鎖筒的鑰匙***孔。 接下來說明上述構造（2 )。 第9圖A、第9圖B是傳統的座墊鎖裝置的說明圖， 在第9圖中，座墊鎖裝置200，會在基板20 1上，分 別以銷栓2 0 5、銷栓2 0 6可旋轉地安裝：用來結合到 安裝於座墊（沒有圖示）的下面部的座墊鉤2 〇 2的結合 構件2 0 3、、及用來鎖定該結合構件2 0 3讓它不會旋轉 的鎖定構件2 0 4 ,在結合構件2 0 3與鎖定構件2 0 4 之間是掛有拉伸線圈彈簧2 0 7。 經濟部智慈財產局員工消費合作社印製 結合構件203，是具備有：鉤在座墊鉤202的第 一爪部2 0 8、及朝側邊突出的突出部2 1 1 ,鎖定構件 2 0 4則是具備有：鉤在結合構件2 〇 3的突出部2 1 1 的第二爪部2 1 2、及用來連結到座墊鎖解除用的鎖筒（ 沒有圖示）側且朝側邊延伸的臂部2 ]_ 3。 由第9圖A的狀態，在第9圖B ,是操作鎖筒來使鎖 定構件2 0 4的臂部2 1 3朝箭頭方向擺動，則鎖定構件 2〇4就會以銷栓2 〇 6爲中心朝順時鐘方向旋轉，鎖定 i紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐) -5- 經濟部智慧財產局員工消費合作社印製 589259 A7 ____ B7 五、發明説明（3) 構件2 0 4的第二爪部2 1 2會從結合部2 〇 3的突出部 2 1 1脫落，結合構件2 0 3會由於拉伸線圈彈簧2〇7 的拉伸力以銷栓2 0 5爲中心朝箭頭方向旋轉，座墊鉤 2 0 2會從第一爪部2 0 8脫落，會讓座墊鎖解除。於是 就可以打開座墊。 回到第9圖A，例如，把棒部2 1 5從座墊、與配置 在座墊下方的車體外殼之間***，來按壓鎖定構件204 的第二爪部2 1 2的話，則與第9圖B的說明同樣地，第 二爪部212也會朝箭頭方向擺動，也會讓座墊鎖解除。 這方面在防盜性就不是很好了。 【發明揭示】 本發明的第一目的，是藉由在後擋泥板設置鎖筒，不 需要在車體外殼設置鎖筒用的開口，當將座墊鎖裝置開鎖 v 時很容易進行鎖筒的鑰匙操作。 本發明的第二目的，是要提高防盜機能讓座墊鎖的開 鎖動作無法用預定的鑰匙之外的東西來進行。 藉由本發明的第一槪念，是針對在車體後部安裝著當 將開閉式座墊關閉時可進行上鎖動作的座墊鎖裝置的機車 ，其特徵爲： 上述的座墊鎖裝置，是從被設置在車體框架的後部並 且用來鎖住其與設置在上述座墊的下面部的座墊鉤的結合 的鎖定構件，將臂部構件朝下方延伸，使該臂部構件可操 作地抵接到，位於覆蓋車體後方的車體外殼的更下方的位 本纸張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 裝 訂 (請先閱讀背面之注意事項再填寫本頁) -6 - 589259 A7 ____B7_ 五、發明説明（4) 置且被設置在後擋泥板的側面用來進行解除鎖定的鎖筒的 操作凸輪。 (請先閲讀背面之注意事項再填寫本頁) 如此一來，藉由將鎖筒設置在後擋泥板的側面，就不 需要在車體外殻設置鎖筒用的開口，跟傳統的將鎖筒安裝 在車體後部的尾燈下方的方式相比，在本發明中當要進行 鎖筒的鑰匙操作時，即使不從車體的側邊移動到車體後方 ，也可以容易地進行鎖筒的鑰匙操作。 針對上述第一槪念的座墊鎖裝置，其中在後擋泥板是 設置有用來覆蓋座墊鎖裝置的側方及後方的遮蔽壁部。 藉此，就可以防止從側方或後方例如用棒狀構件來將 座墊鎖裝置解除鎖定。 針對上述第一槪念的座墊鎖裝置，其中是將遮蔽壁部 的上部固定在橫構件。 如此一來，藉由將遮蔽壁部的上部固定在橫構件，就 可以將遮蔽壁部作得更堅固，例如，即使將棒狀構件*** 也不會讓遮蔽壁部破損。 經濟部智慧財產局員工消費合作社印製 針對上述第一槪念的座墊鎖裝置，其中是使用來覆蓋 座墊鎖裝置的後上方的遮蔽壁部從座墊底板往下垂。 藉此，藉由遮蔽壁部，就可以防止例如將棒狀構件從 車體後方***來將座塾鎖裝置解除鎖定。 藉由本發明的第二槪念，是由：鉤在座墊側的座墊鉤 的第一爪部、具備第一爪部且會朝上鎖/開鎖方向擺動的 第一擺動片、設置在第一擺動片的凹部、夠在該凹部的第 二爪部、具備第二爪部且會擺動的第二擺動片、及用來使 本紙浪尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ' 589259 A7 B7 五、發明説明（5) 第二擺動片朝向讓第二爪部嚙合到凹部的方向擺動而架在 第一、第二擺動片的彈簧所構成的座墊鎖裝置，其特徵爲 (請先閱讀背面之注意事項再填寫本頁) 將構成凹部的兩片結構的其中一片延長，當第二擺動 片鉤在凹部時用延長部來覆蓋第二擺動片的上面部。 藉由用延長部來覆蓋第二擺動片的上面部，則即使想 要以例如棒狀構件按壓第二擺動片的上部來使第二擺動構 件擺動解除鎖定，也可以藉由延長部來阻止上述的不良行 爲。 在第二槪念中，其中是使用來覆蓋座墊鎖裝置的後上 方的遮蔽壁部從座墊底板往下垂。 【圖面說明】 第1圖是用來說明在後部具備有本發明的座墊鎖裝置 的機車的構造的側面圖。 第2圖是將具備本發明的座墊鎖裝置的車輛後部加以 放大的重要部位放大圖。 經濟部智慧財產局員工消費合作钍印製 第3圖是具備本發明的座墊鎖裝置的車輛的背面圖。 第4圖是具備本發明的座墊鎖裝置的車輛後部的平面 圖。 第5圖是爲了說明圍繞著本發明的座墊鎖裝置的後檔 泥板及橫構件的大致從車體斜後方左側來看的立體圖。 第6圖是用來說明本發明的座墊鎖裝置與後擋泥板的 位置關係而從車體前方來看的立體圖。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -8- 經濟部智慈財產局工消費合作社印製 589259 A7 B7 五、發明説明（6) 第7圖A及桌7圖B是用來說明本發明的座墊鎖裝置 的開鎖的前半的作用的作用圖。 第8圖A及第8圖B是用來說明本發明的座墊鎖裝置 的開鎖的後半的作用的作用圖。 第9圖A及第9圖B是用來說明傳統的座墊鎖裝置的 構造及將座墊鎖裝置開鎖的作用的說明圖。 【圖號說明】 1〇：機車 11:主框架 12:後框架 13:車體框架 1 5 :頭管 1 6 :前叉 1 7 :前輪 1 8 :車把 2 1 :引擎 2 2 :擺動臂 2 3 :後輪 2 4 :後避震單元 2 5 :油箱 2 6 :座墊 2 7 :空氣濾淸器 3 1 :頭燈 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ：1------------、玎------J (請先閲讀背面之注意事項再填寫本頁) -9- 589259 A7 B7 五、發明説明（7) 3 3 3 3 3 3 8 5 5 5 經濟部智慧財產局員工消費合作社印製 5555666777 7 置 部片 罩板 板裝 輪件 裝 栓動栓 殼護泥殼 π 架 泥 鎖件 凸構 鉤部 安 銷擺銷 外部擋外腳腳燈擋手墊構筒作部板墊壁燈燈殼板一 一二 前腿前側側丨尾後扶座橫鎖操臂底座縱尾尾燈基第第第 (請先閲讀背面之注意事項再填寫本頁) 4 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X 297公釐） -10- 589259 A7 B7 五、發明説明（8: 7 5 :第二擺動片 7 6 :拉伸線圈彈簧 (請先鬩讀背面之注意事項再填寫本頁) 8 1 :第一爪部 8 2 :第一突出部 8 3 :第二突出部 8 4 :彈簧鉤掛部 8 7 :第二爪部 1 0 1 :後擋泥板安裝部 1 0 2 :燈泡 【發明實施形態】 經濟部智慧財產局8工消費合作社印製 第1圖是用來說明在後部具備有本發明的座墊鎖裝置 的機車的構造的側面圖。機車1 〇，是具備有由：主框架 1 1、與安裝在主框架1 1的後部的後框架1 2、1 2 ( 內側的後框架1 2不圖示出來）所構成的車體框架1 3， 在主框架11的前部設置有頭管15，且在頭管15安裝 可轉向的前叉1 6，在前叉1 6的下端安裝前輪1 7，在 同樣的前叉1 6的上端安裝車把1 8，在主框架1 1的後 部安裝引擎2 1並且安裝可擺動的擺動臂2 2，在這個擺 動臂2 2的後端，安裝後輪2 3及一對的後避震單元2 4 、2 4 (內側的圖號2 4不圖示出來）的下端，將這些後 避震單元24、24的上端分別安裝在後框架1 2、1 2 ，在後框架12、12安裝油箱25及座墊26，在前述 的引擎2 1的上方配置空氣濾淸器2 7，且將本發明的座 ，erTπ3pβ阳cb]¾囫定標準（CNS)A4規格（210x29フ公釐） 589259 A7 B7 五、發明説明（9) 墊鎖裝置5 0中介著橫構件（不圖示出來）安裝在後框架 1 2、1 2的後部。 (請先閱讀背面之注意事項再填寫本頁) 座墊2 6，在前部設置有座墊鉸鏈，在後部設置有座 墊夠（沒有圖不），是讓座墊夠結合在座墊鎖裝置5 0的 開閉式的構造。 這裡的3 1是頭燈，3 2是前外殼，3 3是腿部護罩 ，3 4是前擋泥板，3 5是作爲車體外殼的側外殻，3 6 是側腳架，3 7是主腳架，3 8是尾燈，4 1是後擋泥板 ，4 2是扶手。 第2圖是將具備本發明的座墊鎖裝置的車輛後部加以 放大的重要部位放大圖，將橫構件5 1架在後框架1 2、 1 2 (內側的後框架1 2不圖示出來）的後部，在橫構件 5 1安裝前述的座墊鎖裝置5 0，顯示將用來進行座墊鎖 裝置5 0的開鎖的鎖筒5 2安裝在後擋泥板4 1的側面 4 1 a的狀態。 經濟部智慧財產局員工消費合作社印製 在圖中，54是會由於鑰匙操作而連動擺動且安裝在 鎖筒5 2的端部的臂狀的操作凸輪，5 5則是將其中一端 安裝在座墊鎖裝置5 0且將另一端抵接在操作凸輪5 4的 臂部構件，5 6是安裝在座墊2 6的底部的底板，5 7是 安裝在底板5 6的後部的座墊鉤，5 8是從底板5 6的後 部垂下的作爲遮蔽壁部的縱壁部，6 1是尾燈，6 2是用 來支承尾燈6 1從橫構件5 1延伸出來的尾燈安裝部， 6 3是覆蓋著尾燈6 1的上部的尾燈外殼，6 4、6 4是 用來安裝扶手4 2 (參照第1圖）而設置在橫構件5 1的 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -12- 經濟部智慧財產局8工消費合作钍印製 589259 A7 B7 五、發明説明（d 扶手安裝孔，6 5是用來將側外殻3 5安裝在後擋泥板 4 1的外殼安裝部。 第3圖是具備本發明的座墊鎖裝置的車輛的背面圖， 是安裝於橫構件5 1的座墊鎖裝置5 0的說明圖。 座墊鎖裝置50，是由：以螺栓67、67及螺母 6 8、6 8來安裝在橫構件5 1的基板7 1、用來與座墊 鉤5 7結合而以第一銷栓7 2可旋轉地安裝在基板7 1的 第一擺動片7 3、用來限制第一擺動片7 3的旋轉而以第 二銷栓7 4可旋轉地安裝在基板7 1的第二擺動片7 5、 安裝在第二擺動片7 5的前述的臂部構件5 5、及分別架 在第一擺動片7 3及第二擺動片7 5的拉伸線圈彈簧7 6 所構成。 第一擺動片7 3是由：鉤在座墊鉤5 7的第一爪部 8 1、朝側邊突出的第一突出部8 2、作爲設置在第一突 出部8 2的上方的延長部的第二突出部8 3、及用來鉤住 拉伸線圈彈簧了 6的彈簧鉤掛部8 4所構成。8 5則是在 第一突出部8 2與第二突出部8 3之間的凹部。 第二擺動片7 5則是由：鉤在第一擺動片7 3的第一 突出部8 2的第二爪部8 7、用來安裝臂部構件5 5的桿 安裝臂部8 8、用來抵接於設置在基板7 1的止動部9 1 的止動用臂部9 2、9 3、及用來鉤住拉伸線圈彈簧7 6 的彈簧夠掛部9 4所構成。 橫構件5 1，是架在後框架1 2、1 2且從背面來看 是矩形的構件。9 5則是爲了要安裝後擋泥板4 1的後壁 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 裝 訂 (請先閱讀背面之注意事項再填寫本頁) -13- 經濟部智慧財產局員工消費合作社印製 589259 A7 _______B7 五、發明説明（〇 部9 8 (沒有圖示。在後面有詳細敘述。）而從橫構件 5 1的上部斜垂下來的後擋泥板安裝臂部。 第4圖是具備有本發明的座墊鎖裝置的車輛後部的平 面圖，是針對後擋泥板來詳細說明。白箭頭（front)是表 示車體的前方。（以下相同。） 後擋泥板4 1，是在座墊鎖裝置5 〇的側邊形成了作 爲遮蔽壁部的側壁部9 7 ,且在座墊鎖裝置5 0的後方形 成了與側壁部9 7連續的作爲遮蔽壁部的後壁部9 8的零 件。 101、101是用來安裝後擋泥板41而設置在橫 構件5 1的下部的後擋泥板安裝部，1 〇 2則是內藏於尾 燈6 1的燈泡。 第5圖是爲了說明圍繞著本發明的座墊鎖裝置的後擋 泥板及橫構件的大致從車體斜後方左側來看的立體圖。 爲了要圍繞座墊鎖裝置5 0 ,後擋泥板4 1，在右側 邊具備有側壁部9 7 (參照第4圖），在後方具備有後壁 部9 8，橫構件5 1 ,在兩側邊具備有立起壁部1 〇 5、 105,在上方具有平坦部106，在前方具備有前壁部 1 0 7 (參照第3圖）。而1 1 1是用來支承後壁部9 8 而從後擋泥板4 1的後端部朝車體前方延伸的支承壁部。 第6圖是用來說明本發明的座墊鎖裝置與後擋泥板的 位置關係而從車體前方來看的立體圖，是分別將側壁部 9 7、及後壁部9 8作成與座墊鎖裝置5 0大致相同的高 度而分別配置在座墊鎖裝置5 0的側方及後方。1 1 3是 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） --------^裝------訂------ (請先閱讀背面之注意事項再填寫本頁) -14- 589259 A7 B7 五、發明説明（d (請先閱讀背面之注意事項再填寫本頁) 爲了安裝到前述的橫構件5 1 (參照第3圖）的後撑泥板 安裝臂部9 5 (參照第3圖）而設置在後壁部9 8的上咅β 的擋泥板側安裝部，1 1 4、1 1 4則是用來安裝到後擋 泥板安裝部1 0 1、1 0 1 (參照第4圖）的擋泥板側安 裝座，1 1 5則是位於座墊鎖裝置5 0的下方的後擋泥板 4 1的基部。 接下來說明以上所述的座墊鎖裝置的作用。 第7圖Α及第7圖Β是用來說明本發明的座墊鎖裝置 的開鎖的前半的作用的作用圖，第7圖A是用來說明鑰匙 操作前的狀態的側面圖，第7圖B是用來說明鑰匙操作後 的狀態的側面圖。 在第7圖A，從座墊鎖裝置5 0的第二擺動片7 5延 伸出來的臂部構件5 5，是處於抵接在安裝於鎖筒5 2的 操作凸輪5 4的側面的狀態。 在第7圖B，當把鑰匙***鎖筒5 2的鑰匙孔5 2 a ，且朝順時鐘旋轉將操作凸輪5 4朝箭頭方向擺動角度0 時，伴隨著臂部構件5 5也會傾斜。 經濟部智慧財產局員工消費合作社印製 第8圖A及第8圖B是用來說明本發明的座墊鎖裝置 的開鎖的後半的作用的作用圖，第8圖A是用來說明鑰匙 操作前的狀態的背面圖，第8圖B則是用來說明鑰匙操作 後的狀態的背面圖。 在第8圖A中，座墊的座墊鉤57是處於鉤在第一擺 動片7 3的狀態，第一擺動片7 3的第一突出部8 2 ,則 是處於鉤在第二擺動片7 5的第二爪部8 7的狀態。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -15- 589259 經濟部智慧財產局S工消費合作社印焚 A7 _____ B7五、發明説明（j 如第7圖B所說明的藉由讓臂部構件5 5傾斜，在第 8圖B中，連結於壁部構件5 5的第二擺動片7 5，是以 第二銷栓7 4爲中心旋轉，讓第二爪部8 7朝箭頭方向擺 動。 伴隨著，第二擺動片75的第二爪部87會從第一擺 動片73的第一突出部82脫落，並且第一擺動片73會 藉由拉伸線圈彈簧7 6的拉伸力而以第一銷栓7 2爲中心 旋轉，所以第一爪部8 1會朝箭頭方向擺動而從座墊鉤 5 7脫落。 於是，就可以使座墊鉤5 7朝箭頭方向移動，就可以 將座墊開啓。 而在將座墊關閉而以座墊鎖裝置5 0鎖定座墊的情況 ，會使座墊鉤5 7下降而抵接到第一擺動片7 3的第二突 出部8 3的側部，會使第一擺動片7 3以第一銷栓7 2爲 中心朝順時鐘方向旋轉。此時，如第7圖A所示，鎖筒 5 2的操作凸輪5 4是處於鑰匙操作前的狀態，在第8圖 B，第二擺動片7 5的第二爪部8 7是藉由拉伸線圈彈簧 7 6的拉伸力而處於接近第一突出部8 2的狀態，第一擺 動片73—旦旋轉超過某個角度，第二爪部87就會鉤在 第一突出部8 2。這是處於座墊鎖定的狀態。 回到第8圖A，在要以鑰匙以外的東西來解除座墊鎖 定的情況，例如即使在，從座墊下將棒狀構件1 2 0*** 到座墊鎖裝置5 0側，想要將第二擺動片7 5的第二爪部 8 7從第一擺動片7 3的第一突出部8 2脫落的情況，在 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公慶) (請先閲讀背面之注意事 J· 項再填」 I 裝一-I :寫本頁) 4 -16- 經濟部智慧財產局員工消费合作社印製 589259 A7 _B7_ __589259 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (〇 [Technical Field] The present invention relates to a seat cushion locking device for a locomotive. The anti-theft function cannot be unlocked with something other than a predetermined key. [Technical Background] In a locomotive, the general method is to make the seat cushion open and close and provide a storage space under the seat cushion. This seat cushion is provided at the front The hinge is provided with a hook portion at the rear, and has a structure that locks the hook portion with a seat cushion lock device provided on the vehicle body side. When the seat cushion lock device is opened, that is, the seat cushion is opened, the The key is inserted into a lock cylinder installed at the rear of the car body. Generally, a bracket is provided on the side of the rear frame below and behind the seat cushion, a lock cylinder is provided on the bracket, and the opening is installed on the side of the body shell. At this time, when assembling the car body shell, there is a problem that the opening of the lock cylinder and the car body shell is not suitable. As the lock cylinder is not arranged on the frame, it is arranged on the rear fender. The seat cushion lock device of a locomotive is, for example, (1) a conventional structure described in Japanese Patent Application Laid-Open No. 2000-1 7 1 7 9 5 "Seat cushion structure of a locomotive". (2) As a seat cushion lock device The detailed structure is a conventional structure shown in Fig. 9. In the above-mentioned publication (1), the cushion lock structure is described, and it is a seat rail that supports a rear seat cushion for a passenger to ride on. A second horizontal tube is installed at the rear of the strip, and a locking mechanism for locking the rear seat cushion is installed on the horizontal tube. The Chinese standard (CNS) A4 specification (210X297 mm) is applied for this paper size. (Please read first Note on the back, please fill out this page) -4- 589259 A7 __B7_ V. Description of the invention (2) The rear part of the rear fender covering the upper part of the rear wheel and under the tail light is installed to open the above Lock cylinder of the locking mechanism. (Please read the precautions on the back before filling out this page.) In this kind of seat cushion locking device, for example, when the driver wants to get out of the car to the side of the car, take out the contents stored under the seat cushion, and then When getting on the car, the driver wants to open the seat cushion from the side of the car To move to the rear of the vehicle, after inserting the key into the lock cylinder for unlocking operation, and then returning to the side of the car, the unlocking action of the seat cushion becomes very troublesome. And because the lock cylinder is under the taillight, it is difficult to confirm the lock The key insertion hole of the cylinder. Next, the above structure (2) will be described. Fig. 9A and Fig. 9B are explanatory diagrams of a conventional seat cushion lock device. In Fig. 9, the seat cushion lock device 200 is mounted on a base plate. On the 20 1, the pins 2 0 5 and the pins 2 0 6 are rotatably mounted: a coupling member 2 0 for coupling to a seat cushion hook 2 0 2 mounted on a lower portion of a seat cushion (not shown). 3, and a locking member 204 used to lock the coupling member 203 so that it cannot rotate, and a tension coil spring 207 is hung between the coupling member 203 and the locking member 203. The printed member 203 of the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs includes a first claw portion 208 hooked on the seat cushion hook 202, a protruding portion 2 1 1 protruding toward the side, and a locking member 2 0 4 is provided with a second claw portion 2 1 2 protruding from the protruding portion 2 1 1 of the coupling member 2 03, and a lock cylinder (not shown) for connecting to the cushion lock release side and facing side Side extended arm 2] _3. From the state of FIG. 9A and FIG. 9B, the lock cylinder is operated to swing the arm portion 2 1 3 of the locking member 2 0 4 in the direction of the arrow, and the locking member 2 0 4 will be locked with a pin 2 0 6 Rotate clockwise towards the center and lock the i paper size to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -5- Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 589259 A7 ____ B7 V. Description of the invention (3 ) The second claw portion 2 1 2 of the member 2 0 4 will fall off from the protruding portion 2 1 1 of the joint portion 2 0 3, and the joint member 2 3 will pin 2 due to the tensile force of the tension coil spring 2 07. 0 5 is the center and rotates in the direction of the arrow. The seat cushion hook 2 0 2 will fall off from the first claw portion 2 8 and the seat cushion lock will be released. Then you can open the seat cushion. Returning to FIG. 9A, for example, if the rod portion 2 1 5 is inserted between the seat cushion and the vehicle body shell disposed below the seat cushion, and the second claw portion 2 1 2 of the lock member 204 is pressed, In the description of FIG. 9B, the second claw portion 212 also swings in the direction of the arrow, and the seat cushion lock is released. This aspect is not very good in anti-theft properties. [Disclosure of the invention] The first object of the present invention is to provide a cylinder lock at the rear fender, which does not need to provide an opening for the cylinder lock in the car shell, and it is easy to lock the cylinder when the seat cushion lock device is unlocked v. Key operation. The second object of the present invention is to improve the anti-theft machine so that the unlocking operation of the seat cushion lock cannot be performed with something other than a predetermined key. The first idea of the present invention is a locomotive equipped with a seat cushion lock device that can perform a locking action when the open-close seat cushion is closed at the rear of the vehicle body, and is characterized in that the aforementioned seat cushion lock device is The arm member is extended downward from a locking member provided at the rear portion of the vehicle body frame and used to lock its engagement with a seat cushion hook provided at the lower portion of the seat cushion, so that the arm member is operable Abutting, the paper size of the paper below the body shell covering the rear of the car body applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) binding (please read the precautions on the back before filling this page) ) -6-589259 A7 ____B7_ V. Description of the invention (4) The operating cam of the lock cylinder which is placed on the side of the rear fender for unlocking. (Please read the precautions on the back before filling in this page.) In this way, by setting the lock cylinder on the side of the rear fender, there is no need to set the opening for the lock cylinder in the body shell, which is the same as the traditional Compared with the manner in which the lock cylinder is installed under the tail light at the rear of the vehicle body, in the present invention, when the key operation of the lock cylinder is to be performed, the lock cylinder can be easily performed without moving from the side of the vehicle body to the rear of the vehicle body. Key operation. According to the cushion lock device of the first aspect, the rear fender is provided with a shielding wall portion for covering the side and rear of the cushion lock device. Thereby, it is possible to prevent the seat cushion lock device from being unlocked from the side or the rear, for example, with a rod-shaped member. In the seat cushion lock device according to the first aspect, the upper part of the shielding wall portion is fixed to the cross member. In this way, by fixing the upper portion of the shielding wall portion to the cross member, the shielding wall portion can be made stronger. For example, even if a rod-shaped member is inserted, the shielding wall portion is not damaged. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the seat cushion lock device for the above-mentioned first thought, in which the shielding wall portion covering the rear upper part of the cushion lock device hangs down from the bottom plate of the cushion. Thereby, by shielding the wall portion, for example, the rod-shaped member can be prevented from being unlocked by inserting the rod-shaped member from the rear of the vehicle body. According to the second aspect of the present invention, the first claw portion of the seat cushion hook hooked on the seat cushion side, the first swinging piece provided with the first claw portion, and swinging in the upward lock / unlock direction are provided in the first A recessed portion of a swinging piece, a second claw portion capable of being in the recessed portion, a second swinging piece having a second claw portion and swinging, and a paper wave standard adapted to the Chinese National Standard (CNS) A4 specification (210X297 mm) ） 589259 A7 B7 V. Description of the invention (5) The second swinging piece swings toward the direction where the second claw portion engages with the recessed portion, and the cushion lock device composed of the spring mounted on the first and second swinging piece has the characteristics In order to (please read the precautions on the back before filling this page), extend one of the two pieces of the structure forming the recess, and when the second swing piece is hooked on the recess, cover the upper surface of the second swing piece with the extension. By covering the upper surface of the second swinging piece with the extension portion, even if it is desired to release the lock of the second swinging member by pressing the upper portion of the second swinging piece with, for example, a rod-shaped member, the extension portion can be used to prevent the above. Bad behavior. In the second thought, the shielding wall portion covering the rear upper part of the seat cushion lock device hangs down from the seat bottom plate. [Description of Drawings] Fig. 1 is a side view for explaining the structure of a locomotive provided with a seat cushion lock device of the present invention at the rear. Fig. 2 is an enlarged view of an important part of a vehicle equipped with a seat cushion lock device according to the present invention. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs for consumer cooperation. Figure 3 is a rear view of a vehicle equipped with a seat cushion lock device of the present invention. Fig. 4 is a plan view of a rear portion of a vehicle including a seat cushion lock device according to the present invention. Fig. 5 is a perspective view for explaining a mudguard and a cross member surrounding the rear fender of the seat cushion lock device of the present invention, as viewed from the diagonally rear left side of the vehicle body. Fig. 6 is a perspective view illustrating the positional relationship between the seat cushion lock device and the rear fender according to the present invention as viewed from the front of the vehicle body. This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) -8- Printed by the Industrial and Consumer Cooperatives of the Intellectual Property Office of the Ministry of Economic Affairs 589259 A7 B7 V. Description of the invention (6) Figure 7A and Table 7 B is an operation diagram for explaining the operation of the first half of the unlocking of the seat cushion lock device of the present invention. Fig. 8A and Fig. 8B are action diagrams for explaining the action of the second half of the unlocking of the seat cushion lock device of the present invention. 9A and 9B are explanatory diagrams for explaining a structure of a conventional seat cushion lock device and an operation of unlocking the seat cushion lock device. [Illustration of drawing number] 10: Locomotive 11: Main frame 12: Rear frame 13: Body frame 15: Head tube 16: Front fork 17: Front wheel 1 8: Handlebar 2 1: Engine 2 2: Swing arm 2 3: Rear wheel 2 4: Rear suspension unit 2 5: Fuel tank 2 6: Seat cushion 2 7: Air filter 3 1: Headlight This paper size applies to China National Standard (CNS) A4 (210X297 mm) ： 1 ------------, 玎 ------ J (Please read the notes on the back before filling this page) -9- 589259 A7 B7 V. Description of the invention (7) 3 3 3 3 3 3 8 5 5 5 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5555666777 7 Set-up cover, plate, plate, wheel, bolt, movable shell, mud shell, π frame, mud lock, convex hook, pin, pendulum Pin outer block, outer foot, foot lamp block, hand pad structure, tube, plate, wall lamp, lamp shell, one, two, front, front, front, side, rear, rear, rear, lock, arm, base, vertical, tail, light, first (Please read the back Note: Please fill in this page again.) 4 This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X 297 mm) -10- 589259 A7 B7 V. Description of the invention (8: 7 5: Second swinging piece 7 6: Pull Extension coil spring (please first (Please read the notes on the back side and fill in this page) 8 1: First claw 8 2: First projection 8 3: Second projection 8 4: Spring hook 8 7: Second claw 1 0 1: Rear fender mounting part 102: light bulb [Inventive embodiment] Printed by the 8th Industrial Cooperative Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The first figure is for explaining the structure of a locomotive equipped with the seat cushion lock device of the present invention at the rear. Side view. The locomotive 10 is a vehicle including a main frame 11 and rear frames 1 2 and 1 2 (not shown in the inner rear frame 12) attached to a rear portion of the main frame 11. The body frame 1 3 is provided with a head pipe 15 at the front of the main frame 11, and a steerable front fork 16 is installed at the head pipe 15, a front wheel 17 is installed at the lower end of the front fork 16, and the same front fork 1 At the upper end of 6, a handlebar 18 is installed, an engine 21 is installed at the rear of the main frame 11 and a swingable swing arm 22 is installed. At the rear end of this swing arm 22, a rear wheel 23 and a pair of rear wheels are installed. The lower ends of the shock-absorbing units 2 4 and 2 4 (the inner figure 24 is not shown), and the upper ends of these rear shock-absorbing units 24 and 24 are respectively mounted on the rear frames 1 2 and 1 2. Install a fuel tank 25 and a seat cushion 26 on the rear frames 12, 12; an air filter 27 is arranged above the aforementioned engine 21, and the seat of the present invention, erTπ3pβyang cb] is set to a standard (CNS) A4 size (210x29mm) 589259 A7 B7 V. Description of the invention (9) Pad lock device 50 is installed at the rear of the rear frame 1 2 and 1 2 through a cross member (not shown). (Please read the precautions on the back before filling in this page.) Seat cushion 2 6 is equipped with a seat cushion hinge at the front and a seat cushion at the rear (not shown), which allows the seat cushion to be combined with the seat cushion lock. Opening and closing structure of device 50. Here 3 1 is the headlight, 3 2 is the front shell, 3 3 is the leg shield, 3 4 is the front fender, 3 5 is the side shell as the body shell, 3 6 is the side foot, 3 7 is the main tripod, 38 is the tail light, 41 is the rear fender, and 4 is the armrest. FIG. 2 is an enlarged view of an important part of a rear portion of a vehicle provided with a seat cushion lock device according to the present invention, and a cross member 51 is mounted on a rear frame 1 2, 1 2 (the inner rear frame 12 is not shown) In the rear part, the aforementioned seat cushion lock device 50 is installed on the cross member 51, showing that the lock cylinder 5 2 for unlocking the seat cushion lock device 50 is installed on the side 4 1 a of the rear fender 41. status. Printed in the figure by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 54 is an arm-shaped operating cam that is swung in conjunction with the key operation and is installed at the end of the lock cylinder 5 2, and 5 5 is one of which is mounted on the seat The pad lock device 50 and the other end abut the arm member of the operating cam 54, 56 is a bottom plate installed at the bottom of the seat cushion 26, and 57 is a seat cushion hook installed at the rear of the bottom plate 56. 5 8 is a vertical wall portion as a shielding wall portion hanging from the rear of the bottom plate 5 6, 6 1 is a tail light, 6 2 is used to support the tail light 6 1, a tail light mounting portion extended from the cross member 5 1, and 6 3 is a cover The upper taillight housing 6 1 is mounted on the upper part of the tail light 6 1, 6 4 and 6 4 are used to install the armrest 4 2 (refer to the first figure) and are installed on the cross member 5 1 to the Chinese paper standard (CNS) A4 (210X). 297 mm) -12- Intellectual Property Bureau of the Ministry of Economic Affairs, 8th Industrial Cooperative Cooperative Printing 589259 A7 B7 V. Description of the Invention (d Armrest mounting holes, 6 5 is used to install the side shell 3 5 on the rear fender 4 The housing mounting portion of Fig. 1. Fig. 3 is a rear view of a vehicle provided with a seat cushion lock device of the present invention, and is attached to An explanatory diagram of the seat pad lock device 50 of the cross member 51. The seat pad lock device 50 is mounted on the base plate 71 of the cross member 51 by bolts 67, 67 and nuts 6 8, 6 8. The first pin 7 is rotatably mounted on the base plate 7 1 in combination with the seat cushion hook 5 7. The first pin 7 is used to restrict the rotation of the first pin 7 3 and the second pin 7 4 The second swinging piece 7 5 rotatably mounted on the substrate 71, the aforementioned arm member 5 5 mounted on the second swinging piece 7 5 and the first swinging piece 7 3 and the second swinging piece 7 5 The first swing piece 7 3 is composed of: a first claw portion 8 hooked on the seat cushion hook 5 7, a first projection portion 8 protruding toward the side, and as A protruding portion 8 2 is formed by a second protruding portion 8 3 of the extension portion and a spring hook portion 8 4 for hooking the tension coil spring 6. 8 5 is the first protruding portion 8 2 And the second protruding portion 8 3. The second swinging piece 75 is made up of: the second claw portion 87 hooked on the first protruding portion 8 2 of the first swinging piece 7 3, for mounting the arm portion Member 5 5 rod mounting arm 8 8 It is constituted by abutment arm portions 9 2, 9 3, which abut against a stopper portion 9 1 of the base plate 7 1, and a spring hook portion 9 4 for hooking the tension coil spring 7 6. Cross member 5 1, is a member that is mounted on the rear frame 1 2, 1 2 and is rectangular from the back. 9 5 is to install the rear fender 4 1 The rear wall of this paper applies the Chinese National Standard (CNS) A4 Specifications (210X297 mm) Binding (Please read the notes on the back before filling out this page) -13- Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 589259 A7 _______B7 V. Description of the invention (part 9 8 (not shown). It will be described in detail later. ) And the rear fender is attached to the arm part obliquely from the upper part of the cross member 51. Fig. 4 is a plan view of a rear portion of a vehicle provided with a seat cushion lock device according to the present invention, and illustrates a rear fender in detail. The white arrow (front) indicates the front of the vehicle body. (The same applies hereinafter.) The rear fender 41 is formed with a side wall portion 9 7 as a shielding wall portion on the side of the seat cushion lock device 50, and a side wall portion is formed behind the seat cushion lock device 50. 9 7 is continuously a part of the rear wall portion 98 as the shielding wall portion. Reference numerals 101 and 101 are rear fender mounting portions provided at the lower portion of the cross member 51 for mounting the rear fender 41, and 102 are light bulbs built in the tail light 61. Fig. 5 is a perspective view for explaining the rear fender and the cross member surrounding the seat cushion lock device of the present invention, as viewed from the diagonally rear left side of the vehicle body. In order to surround the seat cushion locking device 50 and the rear fender 41, a side wall portion 9 7 (refer to FIG. 4) is provided on the right side, and a rear wall portion 9 8 and a cross member 5 1 are provided on the two sides. The side walls are provided with rising wall portions 105, 105, the flat portion 106 is provided above, and the front wall portion 10 is provided in front (see FIG. 3). Meanwhile, 1 1 1 is a support wall portion for supporting the rear wall portion 9 8 and extending from the rear end portion of the rear fender 41 to the front of the vehicle body. Fig. 6 is a perspective view illustrating the positional relationship between the seat cushion lock device and the rear fender according to the present invention as viewed from the front of the vehicle body, and the side wall portion 97 and the rear wall portion 98 are respectively formed with the seat cushion. The lock device 50 is disposed at approximately the same height and disposed on the side and rear of the seat cushion lock device 50, respectively. 1 1 3 is the size of this paper applicable to China National Standard (CNS) A4 (210X297 mm) -------- ^ installed ------ order ------ (Please read the back Note for this page, please fill in this page) -14- 589259 A7 B7 V. Description of the invention (d (Please read the notes on the back before filling this page) In order to install to the back support 5 1 (refer to Figure 3) The fender mounting arm portion 9 5 (refer to FIG. 3) and the fender side mounting portion provided on the upper 咅 β of the rear wall portion 9 8. 1 1 4 and 1 1 4 are used for mounting to the rear fender. The fender-side mounts of the mounting portions 1 0 1 and 10 1 (refer to FIG. 4), and 1 1 5 are the bases of the rear fender 41 located below the seat pad lock device 50. The operations of the seat cushion lock device described above. Figs. 7A and 7B are views for explaining the function of the first half of the unlocking of the seat cushion lock device of the present invention, and Fig. 7A is a view for explaining a key. A side view of the state before operation, and FIG. 7B is a side view illustrating the state after the key is operated. In FIG. 7A, the arm portion extending from the second swinging piece 75 of the seat cushion lock device 50 is extended. Component 5 5 is the place It is in a state of abutting on the side surface of the operating cam 5 4 attached to the lock cylinder 5 2. In FIG. 7B, when the key is inserted into the key hole 5 2 a of the lock cylinder 5 2 and the clockwise operation is performed, the operation cam 5 is rotated clockwise. When the angle of 4 swings in the direction of the arrow 0, the arm member 5 5 also tilts. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Figures 8A and 8B are used to explain the cushion lock device of the present invention. Fig. 8A is a back view for explaining the state before the key operation, and Fig. 8B is a back view for explaining the state after the key operation. Fig. 8A Among them, the seat cushion hook 57 of the seat cushion is in a state of being hooked on the first swinging piece 7 3, and the first protrusion 8 2 of the first swinging piece 7 3 is on the second The state of the claws 8 7. This paper size is applicable to the Chinese National Standard (CNS) A4 specifications (210X297 mm) -15- 589259 The Intellectual Property Bureau of the Ministry of Economic Affairs S Industrial Consumer Cooperatives printed A7 _____ B7 V. Description of the invention (j 如 第In FIG. 7B, the arm member 55 is inclined. In FIG. 8B, the arm member 55 is connected to the wall member 55. The two swinging pieces 75 are rotated with the second pin 74 as the center, so that the second claw portion 87 is swung in the direction of the arrow. Accompanying this, the second claw portion 87 of the second swinging piece 75 is moved from the first swinging piece. The first protruding portion 82 of 73 is detached, and the first swinging piece 73 is rotated around the first pin 72 by the tensile force of the tension coil spring 76, so the first claw portion 81 will face the arrow Swing in the direction to fall off the seat cushion hook 57. Then, the seat cushion hook 57 can be moved in the direction of the arrow, and the seat cushion can be opened. When the seat cushion is closed and the seat cushion is locked by the seat cushion locking device 50, the seat cushion hook 57 is lowered and abuts against the side of the second protruding portion 83 of the first swing piece 7 3, The first swinging piece 7 3 is rotated clockwise with the first pin 72 as a center. At this time, as shown in FIG. 7A, the operation cam 54 of the lock cylinder 52 is in a state before the key operation. In FIG. 8B, the second claw portion 87 of the second swinging piece 7 5 is The tension force of the tension coil spring 76 is in a state close to the first protrusion 8 2. Once the first swinging piece 73 rotates more than a certain angle, the second claw portion 87 will hook on the first protrusion 8 2. . This is in the locked state of the seat cushion. Returning to FIG. 8A, when the seat cushion is to be unlocked with something other than a key, for example, even if the rod-shaped member 1 2 0 is inserted from the seat cushion to the 50 0 side of the seat cushion lock device, In the case where the second claw portion 8 7 of the second swinging piece 7 5 is detached from the first protruding portion 8 2 of the first swinging piece 7 3, the Chinese national standard (CNS) A4 specification (210X297 public celebration) is applicable to this paper size Please read the notes on the back of J. and fill in the "I"-I: write this page) 4 -16- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 589259 A7 _B7_ __
五、發明説明（U 本發明中，由於在第一擺動片73是設置了用來覆蓋第二 擺動片7 5的第二爪部8 7的上方的第二突出部8 3，所 以能夠以該第二突出部8 3來阻止棒狀構件1 2 0，就沒 辦法以棒狀構件1 2 0來按壓第二爪部8 7。 接下來敘述其他在本發明的座墊鎖裝置的複數的防盜 對策。 首先在第1圖、第2圖，在座墊2 6的底板5 6的後 部是設置有縱壁部5 8。 例如，在將棒狀構件1 2 0從座墊2 6的後方***座 墊2 6與燈殼6 3的間隙時，該棒狀構件1 2 0會被縱壁 部5 8所阻止而無法到達到座墊鎖裝置5 0。 在第2圖、第4圖，是在座墊鎖裝置50的側邊設置 側壁部9 7，在座墊鎖裝置5 0的後方設置後壁部9 8。 例如，在從車體側邊或車體後方將棒狀構件1 2 0朝 向座墊鎖裝置5 0***時，會藉由側壁部9 7或後壁部 9 8而阻止了棒狀構件1 2 0的侵入。 並且是將上述的後壁部9 8如第3圖所示中介著後擋 泥板安裝臂部9 5來安裝到橫構件5 1，可以讓後壁部 9 8更堅固，即使以棒狀構件1 2 0強壓，也可以防止後 壁部9 8變形或破損。 並且在第3圖、第5圖，除了後擋泥板4 1之外也用 橫構件5 1圍繞著座墊鎖裝置5 0的周圍。 也就是說，在座墊鎖裝置5 0的兩側邊是設置有立起 壁部105、105，在上方設置有平坦部1〇6，在前 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公董)一 訂 (請先閱讀背面之注意事項再填寫本頁) -17- 589259 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（4 方設置有前壁部10 7 (參照第3圖），將這些立起壁部 105、105、平坦部1〇6、前壁部107、與後擋 泥板4 1的側壁部9 7、後壁部9 8及基部1 1 5 (參照 第6圖）組合在一起，就能夠以上下左右前後的六個面幾 乎完全地包圍住座墊鎖裝置5 0。 藉此，就能夠完全防止對座墊鎖裝置5 0的不良行爲 0 在本發明中，是以第一擺動片的延長部來覆蓋第二擺 動片的上面部，可是不限於此，也可以在用來安裝第一擺 動片及第二擺動片的基板上設置用來覆蓋第二擺動片的上 方的遮蔽壁部。 在本發明中，雖然是以後擋泥板與橫構件包圍著座墊 鎖裝置，可是不限於此，可以將橫構件形成爲箱狀，將座 塾鎖裝置收容在橫構件內。 【產業上的可利用性】 座墊鎖裝置，藉由將用來進行鎖定解除的鎖筒設置在 後擋泥板的側面，在將座墊鎖裝置開鎖時就能夠很容易地 進行鎖筒的鑰匙操作，而藉由以第一擺動片的延長部來覆 蓋第二擺動片的上面部，即使例如以棒狀構件按壓第二擺 動片的上部使第二擺動構件擺動想要使鎖定解除，也能夠 以延長部來防止該不良行爲。因此，可以改善操作性及防 盜性，對於需要座墊鎖的機車或鞍座型車輛、產業機械是 很有用的。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 裝 訂 (請先閱讀背面之注意事項再填寫本頁) -18-V. Description of the Invention (U) In the present invention, since the first swinging piece 73 is provided with the second protruding portion 8 3 above the second claw portion 87 to cover the second swinging piece 75, the The second protruding portion 83 prevents the rod-shaped member 1 2 0, so there is no way to press the second claw portion 8 7 with the rod-shaped member 1 2 0. Next, the plural anti-theft devices of the seat cushion lock device of the present invention will be described. First, in FIG. 1 and FIG. 2, a vertical wall portion 58 is provided at the rear of the bottom plate 56 of the seat cushion 26. For example, the rod-shaped member 120 is inserted from the rear of the seat cushion 26 When the gap between the seat cushion 26 and the lamp housing 63 is reached, the rod-shaped member 120 is blocked by the vertical wall portion 58 and cannot reach the seat cushion locking device 50. In FIGS. 2 and 4, it is A side wall portion 97 is provided on the side of the seat cushion lock device 50, and a rear wall portion 98 is provided behind the seat cushion lock device 50. For example, a rod-shaped member 1 2 0 When the seat lock device 50 is inserted, the intrusion of the rod-shaped member 120 is prevented by the side wall portion 97 or the rear wall portion 98. Furthermore, the rear wall portion 98 described above is shown in FIG. 3 Show in Mounting the rear fender by mounting the arm portion 95 to the cross member 51 can strengthen the rear wall portion 98, and prevent the rear wall portion 98 from being deformed or broken even if the rod-shaped member 12 is strongly pressed. In addition, in Figs. 3 and 5, in addition to the rear fender 41, a cross member 51 is used to surround the periphery of the cushion lock device 50. That is, on both sides of the cushion lock device 50 The side is provided with standing wall portions 105, 105, and a flat portion 106 is provided on the upper side. The previous paper size applies the Chinese National Standard (CNS) A4 specification (210X297), (please read the note on the back first) Please fill in this page again for details) -17- 589259 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (Four sides are provided with a front wall section 10 7 (refer to Figure 3), and these wall sections are raised 105 , 105, the flat portion 106, the front wall portion 107, and the side wall portion 97, the rear wall portion 98, and the base portion 1 1 5 (refer to FIG. 6) of the rear fender 41 can be combined. The six surfaces of the lower left, right, front, and rear sides almost completely surround the seat cushion locking device 50. With this, the seat cushion locking device 50 can be completely prevented. Good behavior 0 In the present invention, the upper surface of the second swinging piece is covered with an extension of the first swinging piece, but it is not limited to this, and it may be on a substrate for mounting the first swinging piece and the second swinging piece. A shielding wall portion is provided to cover the upper part of the second swinging piece. In the present invention, although the fender and the cross member surround the seat cushion lock device later, the cross member may be formed into a box shape, The seat lock device is housed in the cross member. [Industrial Applicability] The seat cushion lock device is provided with a lock cylinder for unlocking the lock on the side of the rear fender. When the lock is unlocked, the key operation of the lock cylinder can be easily performed, and the upper surface of the second swinging piece is covered with an extension of the first swinging piece, even if the upper part of the second swinging piece is pressed with a rod-shaped member, for example. The swinging of the two swinging members is intended to release the lock, and the bad behavior can be prevented by the extension. Therefore, it is possible to improve the operability and theft prevention, and it is useful for a locomotive, a saddle-type vehicle, or an industrial machine that requires a seat cushion lock. This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) binding (please read the precautions on the back before filling this page) -18-