201040042 六、發明說明： 【發明所屬之技術領域】 本發明，係爲有關於車用門框者。 【先前技術】 於先前技術中，作爲車用門框，例如係週知有於專利 文獻1中所記載者。此車用門框，係具備有構成車門之窗 〇 框的門框（4)，並且具備有將該門框之車輛前側或者是； 後側的框部（3)從車輛寬幅方向外側來作被覆之合成樹 脂製的飾板（1 )。如此這般地在框部處設置飾板的目的 ，係爲了將車用門框之設計性更進一步的作提升。 又，作爲其他之車用門框，例如係週知有於專利文獻 2中所記載者。此車用門框所具備之門框（框部），係將 其之下端部固定在使前端部相較於所謂的腰線而更加延伸 至上方處的構件（Extension，外延部）處，並且，爲了將 ϋ 剛性增加’亦一倂提案有在該構件處而將追加補片（patch )作接合的構成。 〔先行技術文獻〕 〔專利文獻〕 〔專利文獻1〕日本特開2004-338522號公報 〔專利文獻2〕日本特開2008-168707號公報 【發明內容】 〔發明所欲解決之課題〕 -5- 201040042 然而，在此種車用門框中’會有使飾板之背面側露出 於車室內側處的情形，特別是當如同專利文獻2 一般地而 設置有使前端部延伸至在較腰線更上方處之構件的情況時 ，該構件或是其與框部之間的結合部亦會一同地在車室內 側露出，而成爲有損外觀。 本發明之目的，係在於提供一種：能夠增加門框之剛 性，並且能夠將外觀作提升的車用門框。 〔用以解決課題之手段〕 爲了解決上述問題點，申請項1中所記載之發明，其 要旨爲，具備有：門框，係具備有使下端部固定在構成車 門之下部的門本體處之框部，並構成窗框；和補強構件， 係被固定在前述門本體處，並在至少延伸至較腰線爲更上 方之前端部處，而被固定在前述框部處，以對於該框部作 補強；和外側飾板，係被結合於前述補強構件之前述前端 部處’並將前述框部以及前述補強構件之前述前端部從車 輛寬幅方向外側來作被覆；和內側飾板，係被結合於前述 補強構件之刖述則知部處’並將則述框部以及包含有前述 補強構件之結合部的前述補強構件之前述前端部從車輛寬 幅方向內側來作被覆。 申請項2中所記載之發明，其要旨爲，係在申請項1 所記載之車用門框中，具備有：被形成在前述補強構件之 前述前端部處的複數個結合孔；和被安裝在前述外側飾板 處’並被裝著於前述複數個結合孔的其中一方處，而將前 -6- 201040042 述外側飾板以及前述補強構件之前述前端部作結合之第 結合構件；和被安裝在前述內側飾板處，並被裝著於前 複數個結合孔的另外一方處，而將前述內側飾板以及前 補強構件之前述前端部作結合之第2結合構件。 若依據上述之各構成，則前述補強構件之前述前端 ’係藉由前述外側飾板以及前述內側飾板而分別被從車 寬幅方向外側以及車輛寬幅方向內側而被作了被覆，藉 〇 此，前述框部以及前述補強構件之結合部係一同被從外 以及從車室內而作隱藏。故而，就算是在藉由前述補強 件而將前述框部（門框）之剛性作了增加的情況時，亦 夠將外觀提升。 申請項3中所記載之發明，其要旨爲，係在申請項 或2所記載之車用門框中，具備有：被形成於前述外側 板處之卡止孔；和在前述框部處被作定位並被作固定， 被裝著於前述卡止孔處而將前述外側飾板相對於前述框 Ο 而作定位且作固定之基準結合構件。 若依據該構成，則藉由前述基準結合構件，由於前 外側飾板係相對於前述框部而被作定位並被作固定，因 ，能夠將該外側飾板順暢地結合於前述補強構件之前述 端部處。特別是，藉由在申請項2所記載之構成中適用 構成，係能夠以前述基準結合構件（卡止孔）作爲基準 來將前述第1結合構件在前述結合孔處作定位’而簡易 裝著於該結合孔處。 述 述 部 輛 由 部 構 能 飾 且 部 述 此 刖 此 地 地 201040042 〔發明之效果〕 在本發明中，係能夠提供一種：能夠增加門框之剛性 並且能夠將外觀作提升的車用門框。 【實施方式】 以下’根據圖面來對於將本發明作了具體化之其中一 種實施型態作說明。 圖1 ’係爲從車輛寬幅方向外側來對於被適用有本實 施形態之車用門框的車門之上部構造作觀察的側面圖，圖 2，係爲對於其之骨架構造作展示之側面圖。又，圖3 ( a )、（b )，係爲沿著圖2之A-A線以及B-B線的剖面圖 〇 如圖1中所示一般，在車體1之側部處，係被形成有 上下車用之門開口部2，並且，係支持有將該門開口部2 作開閉之車門3。而，車門3，係具備有構成其之下部的 門本體4。此門本體4，係爲將構成門外板之門外側面板 與構成門內板之門內側面板（省略圖示）作結合所成的袋 狀之構造體，並被設置有可從朝向上方之開口部來作出沒 之門窗玻璃DW等。 又，車門3，係具備有被安裝於門本體4之上端部處 並構成車門3之窗框（亦即是門窗玻璃DW之框）的門框 5。此門框5，係被成形爲朝向下方開放的矩形狀’並具備 有：使下端部分別被固定接著於門本體4 (例如門內側面 板）之前部以及後部處’並延伸存在於車輛高度方向上的 -8 * 201040042 前側框部5 a以及作爲框部之後側框部5b、和以在上述的 前側框部5a以及後側框部5b的上端之間而作架橋的方式 ，而將此兩端經由例如熔接而作固定接著的上側框部5c。 前側框部5a、後側框部5b以及上側框部5c，例如係經由 將金屬板作滾輪成形，而被形成爲略一定之剖面形狀。 進而，車門3，係具備有被固定在門本體4處的補強 構件1 〇。此補強構件1 〇，例如係爲經由將金屬板作彎曲 〇 加工而成形者，並具備有至少延伸至相較於作爲門本體4 之上端的腰線（belt line) BL而更爲上方處之略三角形的 前端部1 1。補強構件1 〇，係在前端部U之與前述後側框 部5b相抵接的後端緣1 1 a (參考圖2 )處，例如藉由熔接 而被固定在後側框部5b處，並對於該後側框部5b作補強 。而，補強構件1 〇，係於其之前端緣處而構成車門3之窗 框的一部份。 另外，本實施形態之車門3，係爲被配置在前門之後 〇 側之後門’前側框部5a以及後側框部5b，係與車體1之 B柱以及C柱相對應地而被作配置。而，在前側框部5 a 處’係被安裝有將該前側框部5 a從車輛寬幅方向之外側 起而作被覆之由合成樹脂製之板材所成的飾板6。又，在 後側框部5 b以及前端部1 1處，係被安裝有將此些從車輛 寬幅方向外側來作被覆之由合成樹脂製之板材所成的外側 飾板7 ’並且’在前端部1 1處，係被安裝有將後側框部 5b以及包含前端部丨丨之結合部（後端緣n a )的前端部 11從車輛寬幅方向內側來作被覆之由合成樹脂製之板材所 -9 - 201040042 成的內側飾板8 (參考圖3 ( a ))。 前側之飾板6，係涵蓋至少成爲較腰線B L更上方之 前側框部5 a之全長地而延伸存在，並形成前側框部5 a ( B柱）之車輛外側的設計面。後側之外側飾板7，係涵蓋 至少成爲較腰線B L更上方之後側框部5 b之全長地而延伸 存在，並形成後側框部5b以及前端部1 1 ( C柱）之車輛 外側的設計面。內側飾板8，亦準據於此地而至少形成前 端部1 1之車輛內側的設計面。 另外，如圖2中所示一般，在補強構件1 0之前端部 1 1處，係被形成有用以將外側飾板7或是內側飾板8作結 合個複數的結合孔1 2。又，在後側框部5b之成爲較腰線 B L更上側之下部處，係被形成有用以將外側飾板7作定 位並作固定的圓形之基準結合孔1 3。又，在後側框部5b 之上部處，係被形成有用以經由適當之結合構件（固定扣 等）來將外側飾板7作結合之結合孔1 4。 如圖3 ( a )中所示一般，在外側飾板7處，係被形成 有從與特定之結合孔1 2 (以下，爲了方便說明，而標記爲 結合孔1 2a )相對向之側的端面（背面）起而延出至結合 孔1 2a側處的支持壁2 1。此支持壁2 1，係具備有被並排 設置於車輛前後方向上的一對支持片2 1 a。此些之支持片 2 1 a，係呈現使其之前端部朝向相互之對向側而作了彎曲 的略L字形狀，並在兩前端間形成長溝2 2。此長溝2 2， 係對向於結合孔1 2 a而作開口。另外，支持壁2 1，係具 備有至少將兩支持片2 1 a之上端間作架橋的頂板部（省略 -10- 201040042 圖示），並經由該頂板部而形成前述長溝2 2之終端（上 端）。 而，於支持壁21處，係被安裝有作爲第1結合構件 之固定扣23。此固定扣23，係具備有以在從前端部〗j ( 補強構件1 〇 )而相分離之側處來與長溝22之週緣部相抵 接的方式而被裝著在該長溝22處之頭部23a，並且，係具 備有從該頭部23a而延伸出去並與結合孔Ka之和頭部 〇 23a相對向之側的週緣部相抵接之凸緣23b，進而，亦具 備有從該凸緣2 3 b而延伸出去並被插通於結合孔1 2 a中且 與該結合孔1 2 a之從頭部2 3 a而分離之側的週緣部相卡合 的防止脫落部23c。故而，固定扣23，係藉由使頭部23a 被裝者於長溝2 2中，來相對於外側飾板7而在車輛前後 方向以及車輛高度方向上被作定位並被作固定，並藉由使 防止脫落部23c與結合孔12a之週緣部作卡合並被作防止 脫落’而將外側飾板7以及前端部1 1作結合。 ^ 又’如圖3 ( b )中所示一般，在外側飾板7處，係被 形成有從與基準結合孔1 3相對向之側的端面（背面）起 而延出至基準結合孔1 3側處的箱形之安裝壁2 4。在此安 裝壁24處，係被形成有與基準結合孔1 3同心地開口之卡 止孔2 5。 而’於後側框部5b處，係被安裝有作爲基準結合構 件之2段固定扣26。此2段固定扣26，係具備將基準結 合孔1 3之週緣部作挾持之頭部27。此頭部27，係具備有 在從安裝壁24 (外側飾板7 )而相分離之側處來與基準結 -11 - 201040042 合孔1 3之週緣部相抵接的圓形之傘部27a，並且，係具備 有從該傘部27a而延伸出去並貫通基準結合孔13而與前 述安裝壁24之對向面（亦即是卡止孔25之與基準結合孔 1 3相對向之側的週緣部）相抵接之延出壁2 7 b，進而，亦 具備有以從該延出壁27b之前端部而被作反折的方式而延 伸存在並將其之前端外緣角部勾掛於基準結合孔1 3之與 安裝壁2 4相對向之側的週緣部處之掛鈎部2 7 c。傘部2 7 a ，係藉由被液密性地中介安裝於該傘部27a與後側框部5b 之間的圓環狀之密封材SE，而與基準結合孔1 3之該週緣 部相抵接。 故而，在將2段固定扣26安裝在基準結合孔1 3中時 ，係一面使掛鈎部27c作彈性變形一面將延出壁27b插入 至基準結合孔1 3中。伴隨於此，通過了基準結合孔1 3後 之掛鈎部27c，係作彈性回復，其之前端外緣角部，係勾 掛在基準結合孔1 3之與安裝壁24相對向之側的週緣部處 ，並與傘部27a —同地而挾持基準結合孔13之週緣部。 而，2段固定扣2 6，係被安裝在基準結合孔1 3 (後側框部 5b)處。另外，2段固定扣26之傘部27a (頭部27)，由 於係在車室內而露出，因此，係被施加有用以將外觀提升 的加工（例如附加紋路）。 又，2段固定扣2 6，係具備有一對延出片2 9，該一對 延出片29，係從延出壁27b (頭部27)而延伸出去，並被 插通於卡止孔2 5中，且與該卡止孔2 5之從基準結合孔1 3 所分離之側的週緣部相抵接，而與延出壁2 7b —同地將卡 -12- 201040042 止孔2 5之週緣部作挾持。故而，外側飾板7， 安裝在基準結合孔13處之2段固定扣26的1 安裝於卡止孔2 5中，而被與後側框部5 b作結 一對延出片2 9 ’係將其之外形成形爲能夠插通 孔13中。而’一對延出片29，係以成爲前端 來作彈性變形’並在此狀態下而被插通於卡止 再伴隨著彈性回復而擴張展開，藉由此，而被 〇 止孔25處。 另一方面，如圖3(a)中所示一般，在內 ，係被形成有從與特定之結合孔1 2 (以下，爲 ，而標記爲結合孔1 2 b )相對向之側的端面（ 延出至結合孔1 2b側處的略L字形狀之支持壁 而，於支持壁31處，係被安裝有作爲第 之固定扣32。此固定扣32，係具備有被安裝;j 處之頭部32a、和從該頭部32a而延伸出去 〇 12b之和頭部32a相對向之側的週緣部相抵接 、以及從該凸緣32b而延伸出去並被插通於結 且與該結合孔12b之從頭部32a而分離之側的 合的防止脫落部32c。故而，固定扣32，係 23a被裝著於支持壁3 1處，來相對於內側飾板 前後方向以及車輛高度方向上被作定位並被作 由使防止脫落部32c與結合孔1 2b之週緣部作 防止脫落，而將內側飾板8以及前端部1 1作結 如同以上所詳述一般，若依據本實施形態 係藉由將被 雨延出片29 合。另外， 於基準結合 較細的方式 孔25中， 卡止在該卡 側飾板8處 了方便說明 背面）起而 3 1° 2結合構件 主支持壁31 並與結合孔 之凸緣32b 合孔12b中 週緣部相卡 藉由使頭部 8而在車輛 固定，並藉 卡合並被作 i合。 ，則係成爲 -13- 201040042 能夠得到下述所示之效果。 (1 )在本實施形態中，補強構件1 〇之前端部11 ’係 藉由外側飾板7以及內側飾板8而分別被從車輛寬幅方向 外側以及車輛寬幅方向內側而被作了被覆’藉由此’後側 框部5b以及補強構件i 0之結合部（熔接部）係一同被從 外部以及從車室內而作隱藏。而，前端部1 1之複數的結 合孔12或是固定扣23亦自然地而被作隱藏。故而’就算 是在藉由補強構件1 0而將後側框部5b (門框5 )之剛性 作了增加的情況時，亦能夠將外觀提升。 (2 )在本實施形態中，由於係藉由2段固定扣26， 而使外側飾板7相對於後側框部5b而被作定位且被作固 定，因此，能夠以2段固定扣26 (卡止孔25 )做爲基準 地來將固定扣23在結合孔1 2a處作定位，並簡易地裝著 在該結合孔1 2a處，而能夠將外側飾板7順暢地結合在補 強構件1 〇之前端部1 1處。 (3 )在本實施形態中，在將外側飾板7結合於後側 框部5 b處時，首先，係將基準結合孔1 3之週緣部藉由頭 部2 7來作挾持，而將2段固定扣2 6在後側框部5 b處作 定位並作固定。而後，在此狀態下，而將一對延出片2 9 插通於卡止孔25中，並藉由頭部27 (延出壁27b)以及 一對延出片29來將卡止孔25之週緣部作挾持。如此這般 ，藉由以預先在後側框部5b處而作了定位並作了固定之2 段固定扣26來作爲基準，能夠經由該2段固定扣26來將 外側飾板7以及後側框部5b更順暢地作結合。 -14- 201040042 (4 )在本實施形態中，由於係將後側框部5b以及補 強構件1 0 (前端部1 1 )在較腰線BL更上側處來作結合， 因此，能夠適當地將後側框部5b (門框5 )之剛性作確保 ，乃至能夠將車門3全體之剛性作增加。 另外，上述實施形態，係亦可如同下述一般地作變更 〇 在前述實施形態中，固定扣2 3、3 2，係亦可相互成爲 〇 相同之構造。 本發明，係亦可適用於作爲車門之前門處。 接著，針對從上述實施形態以及其他例子中所能夠把 握到的技術性思想，於以下作補足說明。 (A)如申請專利範圍第3項所記載之車用門框，其 中，前述框部，係具備有與前述卡止孔相對向而開口之基 準結合孔，前述基準結合構件，係爲2段固定扣，該2段 固定扣，係具備有：頭部，係將前述基準結合孔之週緣部 Ο 作挾持，並與前述卡止孔之和前述基準結合孔相對向之側 的週緣部相抵接；和一對延出片，係從該頭部而延伸出去 ，並被插通於前述卡止孔中，且與該卡止孔之從前述基準 結合孔而相分離之側的週緣部相抵接，而與前述頭部一同 地來將前述卡止孔之週緣部作挾持。若依據該構成，則在 將前述外側飾板7結合於前述框部處時，首先，係將前述 基準結合孔之週緣部藉由前述頭部來作挾持，而將前述2 段固定扣在前述框部處作定位並作固定。而後，在此狀態 下，而將前述一對延出片插通於前述卡止孔中，並藉由前 -15- 201040042 述頭部以及前述一對延出片，來將前述卡止孔之週緣部作 挾持。如此這般，藉由以預先在前述框部處而作了定位並 作了固定之前述2段固定扣來作爲基準，能夠經由該2段 固定扣來將前述外側飾板以及前述框部更順暢地作結合。 (B )如申請項2中所記載之車用門框，其中，前述 第1結合構件（第2結合構件），爲固定扣，該固定扣， 係具備有：頭部，係被安裝在前述外側飾板（內側飾板） 處：和凸緣，係從該頭部而延伸出去，並與前述結合孔之 和前述頭部相對向之側的週緣部相抵接；以及防止脫落部 ，係從該凸緣而延伸出去，並被插通於前述結合孔中，且 與該結合孔之從前述頭部而相分離之側的週緣部相卡合。 【圖式簡單說明】 〔圖1〕對於本發明之其中一種實施形態作展示的側 面圖。 〔圖2〕對於同實施形態作展示的側面圖。 〔圖3〕 （ a ) 、（ b )，係爲沿著圖2之Α· A線以及 B - B線的剖面圖。 【主要元件符號說明】 B L ·腰線 3 :車門 4 :門本體 5 :門框 -16- 201040042 5b :後側框部（ 7 :外側飾板 8 :內側飾板 1 〇 :補強構件 1 1 :前端部 12、 12a ' 12b： 1 3 :基準結合孔 〇 23 :固定扣（第 2 5 :卡止孔 26 : 2段固定扣 2 7 :頭部 29 :延出片 3 2 :固定扣（第 〇 框部） 結合孔 1結合構件） (基準結合構件） 2結合構件） -17-201040042 VI. Description of the Invention: [Technical Field to Be Invented] The present invention relates to a door frame for a vehicle. [Prior Art] As the door frame for a vehicle in the prior art, for example, those described in Patent Document 1 are known. The door frame for a vehicle is provided with a door frame (4) constituting a window frame of the door, and the frame portion (3) on the front side of the vehicle frame or the rear side of the door frame is covered from the vehicle width direction outer side. Synthetic resin plaque (1). The purpose of providing the fascia at the frame portion in this way is to further enhance the design of the vehicle door frame. Further, as another vehicle door frame, for example, those described in Patent Document 2 are known. The door frame (frame portion) provided in the door frame for the vehicle is fixed at a lower end portion thereof to a member (Extension portion) that extends the front end portion further upward than the so-called waist line, and The increase in the rigidity of the crucible is also proposed. The proposal has a configuration in which an additional patch is joined at the member. [PRIOR ART DOCUMENT] [Patent Document 1] [Patent Document 1] JP-A-2004-338522 (Patent Document 2) JP-A-2008-168707 (Summary of the Invention) [Problems to be Solved by the Invention] -5- 201040042 However, in such a vehicle door frame, there is a case where the back side of the fascia is exposed at the side of the vehicle interior, particularly when it is generally provided as in Patent Document 2 to extend the front end portion to the waist line. In the case of the member at the upper portion, the member or the joint portion between the member and the frame portion is also exposed on the vehicle interior side together, resulting in a lossy appearance. SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle door frame which can increase the rigidity of a door frame and can improve the appearance. [Means for Solving the Problems] In order to solve the above-mentioned problems, the invention described in the first aspect of the invention is characterized in that the door frame is provided with a frame for fixing the lower end portion to the door body constituting the lower portion of the door. And constituting the sash; and the reinforcing member is fixed at the door body and at the end portion extending at least to the upper side of the waist line, and is fixed at the frame portion for the frame portion And the outer side panel is joined to the front end portion of the reinforcing member, and the front end portion of the frame portion and the reinforcing member is covered from the outer side of the vehicle width direction; and the inner side panel is attached The front end portion of the reinforcing member that is coupled to the reinforcing member in the above-described reinforcing member is covered from the vehicle width direction inner side, and the front end portion of the reinforcing member that includes the joint portion of the reinforcing member. The invention according to claim 2, wherein the vehicle door frame according to the first aspect of the invention includes: a plurality of coupling holes formed at the front end portion of the reinforcing member; and The outer side fascia is 'attached to one of the plurality of coupling holes, and the outer gusset of the front -6-201040042 and the front end portion of the reinforcing member are combined; and is mounted The inner side fascia is attached to the other of the plurality of front coupling holes, and the front side portion of the inner side gusset and the front reinforcing member are joined to each other. According to the above-described respective configurations, the front end of the reinforcing member is covered by the outer side panel and the inner side panel from the outer side in the vehicle width direction and the inner side in the vehicle width direction, respectively. Here, the joint portion of the frame portion and the reinforcing member is hidden from the outside and from the inside of the vehicle. Therefore, even when the rigidity of the frame portion (door frame) is increased by the above-described reinforcing member, the appearance can be improved. The invention according to claim 3, wherein the vehicle door frame according to the application or the second aspect of the invention includes: a locking hole formed in the outer side plate; and the frame portion is A reference coupling member that is positioned and fixed to be positioned at the locking hole to position and fix the outer fascia relative to the frame. According to this configuration, since the front outer fascia is positioned and fixed to the frame portion by the reference coupling member, the outer fascia can be smoothly coupled to the aforementioned reinforcing member. At the end. In particular, by applying the configuration to the configuration described in the second application, the first coupling member can be positioned at the coupling hole with the reference coupling member (locking hole) as a reference. At the bonding hole. According to the present invention, it is possible to provide a vehicle door frame which can increase the rigidity of the door frame and can improve the appearance of the door frame by the structure of the present invention. [Embodiment] Hereinafter, one of the embodiments in which the present invention is embodied will be described based on the drawings. Fig. 1 is a side view showing the structure of the upper portion of the door to which the vehicle door frame of the present embodiment is applied from the outer side in the vehicle width direction, and Fig. 2 is a side view showing the skeleton structure of the vehicle. 3(a) and (b) are cross-sectional views along the line AA and line BB of FIG. 2, as shown in FIG. 1, generally at the side of the vehicle body 1, which are formed up and down. The door opening 2 for the vehicle is supported by the door 3 that opens and closes the door opening 2. Further, the door 3 is provided with a door body 4 constituting a lower portion thereof. The door body 4 is a bag-like structure formed by combining a door outer panel constituting the door outer panel and a door inner panel (not shown) constituting the door inner panel, and is provided with an opening from the upper side. The Ministry will make the door and window glass DW and so on. Further, the door 3 is provided with a door frame 5 which is attached to the upper end portion of the door main body 4 and constitutes a window frame of the door 3 (i.e., a frame of the door and window glass DW). The door frame 5 is formed in a rectangular shape that is open toward the lower side and is provided such that the lower end portions are respectively fixed to the front portion and the rear portion of the door body 4 (for example, the door inner panel) and extend in the vehicle height direction. -8 * 201040042 The front side frame portion 5 a and the frame rear side frame portion 5 b and the upper end of the front side frame portion 5 a and the rear side frame portion 5 b are bridged, and the both ends are The upper side frame portion 5c is fixed by, for example, welding. The front side frame portion 5a, the rear side frame portion 5b, and the upper side frame portion 5c are formed into a slightly constant cross-sectional shape by, for example, forming a metal plate as a roller. Further, the door 3 is provided with a reinforcing member 1 that is fixed to the door body 4. The reinforcing member 1 is formed, for example, by bending a metal plate, and is provided to extend at least above the waist line BL as the upper end of the door body 4. A slightly triangular front end portion 1 1. The reinforcing member 1 is fixed to the rear side frame portion 5b by welding, for example, at the rear end edge 1 1 a (refer to FIG. 2 ) of the front end portion U that abuts against the rear side frame portion 5b, and is welded, for example, and The rear side frame portion 5b is reinforced. Instead, the reinforcing member 1 is tied to its front edge to form part of the window frame of the door 3. In addition, the door 3 of the present embodiment is disposed behind the front door, and the rear door 'the front side frame portion 5a and the rear side frame portion 5b are arranged corresponding to the B-pillar and the C-pillar of the vehicle body 1. . In the front side frame portion 5a, a fascia 6 made of a synthetic resin plate material which covers the front side frame portion 5a from the outer side in the vehicle width direction is attached. Further, at the rear side frame portion 5b and the front end portion 11, the outer side panel 7' which is made of a synthetic resin sheet material coated from the outer side in the vehicle width direction is attached and The front end portion 1 is made of synthetic resin, and the front end portion 11 including the rear side frame portion 5b and the joint portion (the rear end edge na) including the front end portion is covered from the vehicle width direction inner side. Plate -9 - 201040042 into the inside trim 8 (refer to Figure 3 (a)). The front side fascia 6 is a design surface that extends over at least the entire length of the front side frame portion 5 a which is higher than the waist line B L and forms the outer side of the front side frame portion 5 a (B column). The rear side outer side panel 7 is formed to extend at least over the entire length of the side frame portion 5 b beyond the waist line BL, and to form the rear side frame portion 5b and the front end portion 1 1 (C column) of the vehicle outer side. Design surface. The inner side panel 8 is also intended to form at least the design surface of the vehicle inner side of the front end portion 1 1 based on this. Further, as shown in Fig. 2, generally, at the end portion 1 1 of the reinforcing member 10, a coupling hole 12 for forming the outer side panel 7 or the inner side panel 8 into a plurality is formed. Further, at the lower portion of the rear side frame portion 5b which is higher than the waist line B L , a circular reference coupling hole 13 for fixing the outer side panel 7 and fixing it is formed. Further, at the upper portion of the rear side frame portion 5b, a coupling hole 14 for bonding the outer side panel 7 via a suitable joint member (fixing buckle or the like) is formed. As shown in Fig. 3 (a), in the outer side panel 7, it is formed with a side opposite to a specific joint hole 1 2 (hereinafter, referred to as a joint hole 1 2a for convenience of explanation). The end face (back face) is extended to the support wall 21 at the side of the coupling hole 12a. The support wall 2 1 is provided with a pair of support pieces 2 1 a which are arranged side by side in the vehicle front and rear direction. The support sheets 2 1 a are slightly L-shaped in which the front ends thereof are curved toward the opposite sides of each other, and a long groove 2 2 is formed between the front ends. The long groove 2 2 is opposite to the opening hole 1 2 a. Further, the support wall 213 is provided with a top plate portion (not shown in -10-201040042) in which at least the upper ends of the two support pieces 2 1 a are bridged, and the end of the long groove 2 2 is formed via the top plate portion ( Upper end). On the support wall 21, a fixing buckle 23 as a first coupling member is attached. The fixing buckle 23 is provided with a head that is attached to the long groove 22 so as to be in contact with the peripheral edge portion of the long groove 22 on the side separated from the distal end portion **j (the reinforcing member 1 〇) 23a, further comprising a flange 23b extending from the head portion 23a and abutting against a peripheral portion of the joint hole Ka and the head portion 23a facing the side of the joint hole 23a, and further comprising the flange 2b The buckling preventing portion 23c which extends and is inserted into the coupling hole 1 2 a and engages with the peripheral edge portion of the coupling hole 1 2 a which is separated from the head portion 2 3 a. Therefore, the fixing buckle 23 is positioned and fixed in the vehicle front and rear direction and the vehicle height direction with respect to the outer side panel 7 by the head 23a being fitted into the long groove 2 2 by The outer side trim plate 7 and the front end portion 1 1 are joined by engaging the peripheral portion of the joint preventing portion 23c with the peripheral edge portion of the joint hole 12a to prevent falling off. ^ Further, as shown in FIG. 3(b), at the outer side panel 7, it is formed with an end surface (back surface) from the side opposite to the reference coupling hole 13 and extended to the reference joint hole 1 The box-shaped mounting wall 2 at the side of 3 is 4 . At this mounting wall 24, a locking hole 25 which is opened concentrically with the reference coupling hole 13 is formed. On the rear side frame portion 5b, a two-stage fixing buckle 26 as a reference coupling member is attached. The two-stage fixing buckle 26 is provided with a head portion 27 for holding the peripheral edge portion of the reference joint hole 13 . The head portion 27 is provided with a circular umbrella portion 27a that abuts against the peripheral edge portion of the reference hole -11 - 201040042 hole 13 from the side separated from the mounting wall 24 (outer trim 7). Further, a peripheral surface that extends from the umbrella portion 27a and penetrates the reference coupling hole 13 and the mounting wall 24 (that is, a peripheral edge of the locking hole 25 that faces the reference coupling hole 13) is provided. The portion 2 7 b that is in contact with the extension wall 27 7 b is further provided so as to be folded back from the front end portion of the extension wall 27 b and the front end edge portion of the front end portion is hooked to the reference The hook portion 2 7 c at the peripheral portion of the side of the hole 13 opposite to the mounting wall 24 is joined. The umbrella portion 2 7 a is offset from the peripheral portion of the reference coupling hole 13 by the annular sealing member SE which is liquid-tightly attached between the umbrella portion 27a and the rear side frame portion 5b. Pick up. Therefore, when the two-stage fixing buckle 26 is attached to the reference coupling hole 13, the extending portion 27c is inserted into the reference coupling hole 13 while elastically deforming the hook portion 27c. Along with this, the hook portion 27c that has passed through the reference coupling hole 13 is elastically restored, and the outer edge corner portion of the front end is hooked on the periphery of the reference coupling hole 13 opposite to the mounting wall 24. At the same time, the peripheral portion of the reference coupling hole 13 is held in the same manner as the umbrella portion 27a. Further, the two-stage fixing buckle 26 is attached to the reference coupling hole 13 (the rear side frame portion 5b). Further, since the umbrella portion 27a (head portion 27) of the two-stage fixing buckle 26 is exposed in the vehicle interior, processing for enhancing the appearance (e.g., additional texture) is applied. Further, the two-stage fixing buckle 26 is provided with a pair of extension pieces 2 9, which extend from the extension wall 27b (head portion 27) and are inserted into the locking holes. 2 5, and the peripheral edge portion of the side of the locking hole 25 separated from the reference coupling hole 13 is abutted, and the card 12-201040042 is blocked with the extension wall 27b. The peripheral department is reserved. Therefore, the outer fascia 7, the one of the two-stage fixing buckles 26 attached to the reference coupling hole 13 is attached to the locking hole 25, and is joined to the rear side frame portion 5b by a pair of extension pieces 2 9 ' The outside is formed into a shape that can be inserted into the through hole 13. On the other hand, the pair of extension pieces 29 are elastically deformed as the front end, and are inserted and locked in this state, and then expanded and expanded with elastic recovery, whereby the hole 25 is stopped. . On the other hand, as shown generally in Fig. 3(a), an end face which is opposite to the side opposite to the specific bonding hole 1 2 (hereinafter, referred to as the bonding hole 1 2 b ) is formed. (Extended to a slightly L-shaped support wall at the side of the coupling hole 1 2b, and at the support wall 31, the fixing buckle 32 as the first is attached. This fixing buckle 32 is provided with being installed; j The head portion 32a and the peripheral portion extending from the head portion 32a and the head portion 32a on the side opposite to the head portion 32a are abutted, and extend from the flange 32b and are inserted into the joint and joined thereto. The combined anti-drop portion 32c of the hole 12b on the side separated from the head portion 32a. Therefore, the fixing buckle 32, the system 23a is attached to the support wall 31, and is opposed to the inner side panel in the front-rear direction and the vehicle height direction. The positioning is made such that the peripheral portion of the separation preventing portion 32c and the coupling hole 12b are prevented from falling off, and the inner side panel 8 and the front end portion 1 are knotted as described above in detail, and according to the present embodiment, It will be extended by the rain sheet 29, and in the hole 25 in the manner of the reference combination, the card is locked. The card side panel 8 is conveniently arranged to the rear side and the 3 1° 2 joint member main support wall 31 is engaged with the flange 32b of the coupling hole and the peripheral portion of the hole 12b is fixed by the head 8 And borrowed the card to be merged. Then, it becomes -13-201040042 and the effect shown below can be obtained. (1) In the present embodiment, the front end portion 11' of the reinforcing member 1 is covered by the outer side panel 7 and the inner side panel 8 from the outer side in the vehicle width direction and the inner side in the vehicle width direction. By this, the joint portion (welding portion) of the rear side frame portion 5b and the reinforcing member i0 is hidden from the outside and from the vehicle interior. On the other hand, the plurality of engaging holes 12 or the fixing buckles 23 of the front end portion 1 1 are naturally hidden. Therefore, even when the rigidity of the rear side frame portion 5b (the door frame 5) is increased by the reinforcing member 10, the appearance can be improved. (2) In the present embodiment, since the outer gusset 7 is positioned and fixed to the rear side frame portion 5b by the two-stage fixing buckle 26, the two-stage fixing buckle 26 can be fixed. (the locking hole 25) serves as a reference for positioning the fixing buckle 23 at the coupling hole 12a, and is simply attached to the coupling hole 12a, so that the outer side panel 7 can be smoothly joined to the reinforcing member 1 〇 Before the end 1 1 . (3) In the present embodiment, when the outer side panel 7 is coupled to the rear side frame portion 5b, first, the peripheral edge portion of the reference coupling hole 13 is held by the head portion 27, and The two-stage fixing buckle 26 is positioned and fixed at the rear side frame portion 5b. Then, in this state, a pair of extension pieces 2 9 are inserted into the locking holes 25, and the locking holes 25 are formed by the head portion 27 (extension wall 27b) and the pair of extension pieces 29. The peripheral part is reserved. In this manner, the outer side panel 7 and the rear side can be passed through the two-stage fixing buckle 26 by using the two-stage fixing buckle 26 which is positioned and fixed at the rear side frame portion 5b as a reference. The frame portion 5b is more smoothly combined. -14- 201040042 (4) In the present embodiment, since the rear side frame portion 5b and the reinforcing member 10 (front end portion 1 1) are joined above the waist line BL, it is possible to appropriately The rigidity of the rear side frame portion 5b (the door frame 5) is ensured, and the rigidity of the entire door 3 can be increased. Further, the above-described embodiment may be modified as described below. In the above embodiment, the fixing buckles 2 3 and 3 2 may have the same structure as each other. The invention can also be applied as a front door of a vehicle door. Next, the technical ideas that can be grasped from the above-described embodiments and other examples will be described below. (A) The vehicle door frame according to the third aspect of the invention, wherein the frame portion includes a reference coupling hole that opens opposite to the locking hole, and the reference coupling member is fixed in two stages. The two-stage fastening buckle includes a head portion that grips a peripheral edge portion of the reference coupling hole and abuts a peripheral edge portion of the locking hole opposite to the reference coupling hole; And a pair of extension pieces extending from the head and inserted into the locking holes, and abutting a peripheral portion of the locking hole on a side separated from the reference coupling hole, Further, the peripheral portion of the locking hole is held together with the head portion. According to this configuration, when the outer fascia 7 is coupled to the frame portion, first, the peripheral portion of the reference coupling hole is held by the head portion, and the two segments are fixed to the aforementioned The frame is positioned and fixed. Then, in this state, the pair of extension pieces are inserted into the locking holes, and the locking holes are formed by the heads and the pair of extension pieces described in the above paragraphs -15-201040042. The peripheral department is reserved. In this manner, the outer side sill and the frame portion can be smoothed by the two-stage fixing buckle by using the two-stage fixing buckle which is positioned and fixed at the frame portion in advance as a reference. The ground is combined. (B) The vehicle door frame according to the second aspect of the invention, wherein the first coupling member (second coupling member) is a fixing buckle, and the fixing buckle is provided with a head portion and is attached to the outer side a plaque (inner fascia) and a flange extending from the head and abutting a peripheral portion of the coupling hole opposite to the side of the head; and preventing the falling portion from The flange extends out and is inserted into the coupling hole, and is engaged with a peripheral portion of the coupling hole on the side separated from the head. BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] A side view showing one embodiment of the present invention. Fig. 2 is a side view showing the same embodiment. [Fig. 3] (a) and (b) are cross-sectional views taken along line A and line B - B of Fig. 2 . [Description of main component symbols] BL · Waist line 3 : Door 4 : Door body 5 : Door frame - 16 - 201040042 5b : Rear side frame ( 7 : Outer trim 8 : Inside trim 1 〇 : Reinforced member 1 1 : Front end Part 12, 12a ' 12b: 1 3 : Reference coupling hole 23 : fixing buckle (2nd 5 : locking hole 26 : 2 fixing buckle 2 7 : head 29 : extension piece 3 2 : fixing buckle (third Frame part) joint hole 1 joint member) (reference joint member) 2 joint member) -17-