201200071 六、發明說明： 【發明所屬之技術領域】 本發明係有關於一種可將頂板從使用位置收合至收合 位置之折疊式桌、該折疊式桌用之頂板、該折疊式桌用之桌 腳、及頂板之收合方法。 、 【先前技術】 以往，已知有可將頂板從使用位置收合至收合位置以 便於存放於倉庫等之㈣式桌。另外，這㈣疊式桌，有腳 輪從桌腳的下端往下方伸出而接觸地面，而成為可在地面上 移動之移動桌的類型（專利文獻：特開2〇〇8•购％號公報 的：要、圖1及圖7)。如此之移動桌具有可擺動的微調鎖 固桿、隨著微調鎖固桿之擺動而驅轉浮子連動管之連桿構 件、及隨著浮子連動管之轉動令腳輪伸出之升降機構等。 且，藉由此升降機構，當頂板處於使用位置之狀態時，聊輪 會離開地面，而當頂板處於收合位置之狀態時，腳輪會接觸 地面0 — 此移動桌之升降機構f要桿體、槓桿、及浮子等 複數構件。而且，此桿體等必須要連結成各自均可作動。因 此’零件個數多且組合方式複雜，使製造成本增高且製造時 間變長。 【發明内容】 為解決前述問題，本發明之折疊式桌包含：頂板本體， =移動到使用位置及收合位置者；凸輪，係連接於前述頂 體’且可以支持軸為中心，隨著前述頂板本體之移動而 201200071 擺動者；第一桌腳，係連接於前述支持軸，當前述頂板本體 位在刖述使用位置時，支持前述頂板本體者；及第二桌腳， 係可相對於前述第一桌腳移動，當前述頂板本體位在前述收 合位置時，透過支持面支持前述頂板本體者，當前述頂板本 體位於前述使用位置時，前述支持面面對前述凸輪之對向 部，當前述頂板本體位於前述收合位置時，前述支持面抵接 前述凸輪之抵接部，且自前述支持轴至前述抵接部之距離， 係比自前述支持軸至前述對向部之距離長。 本發明之折疊式桌之效果為：藉由將頂板本體從使用位 置移動至收合位置’可輕易地將第一桌腳支持切換為第二桌 腳支持。而且，該切換是藉由連接於頂板本體之凸輪與第二 桌腳之支持面來達成。因此，與以往相比，可減少折疊式桌 的零件數。另外，由於零件個數少，可輕易組裝此折疊式桌。 藉此，可降低製造成本，同時減少製造時間。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在以 下配合參考圆式之較佳實施例的詳細說明中將可清楚的呈 現。 以下依據圖式說明本發明之實施例。圖1A是本發明之 折疊式桌之俯視n圆18是後視圖’顯錢使用者的 角度看見該折#式桌之狀態。另外，圖1A及圖ib是顯示 頂板1位於使用位置之狀態。 此折疊式桌具有頂板卜及用來支持頂板J之_對桌腳 2。此頂板1是被支持為可相對於一對桌腳2移動。且頂板 4 201200071 1具有頂板本體11，在使用時，該頂板本體u係相對於接 地面3略水平地受到支持。另外，在收合時，頂板本體i 1 係在相對於自接地面3往折疊式桌延伸之垂直線有數度傾 斜的狀態下受到支持。 對桌腳2係具有桌腳框21作為第一桌腳，可在頂板 本體11位於使用位置時支持頂板丨。且一對桌腳框21之 間，是以貫通材22來相互連結。另外，圖i中雖未顯示， 在桌腳框21之内側收容有内腳體23作為第二桌腳，可在頂 板本體11位於收合位置時支持頂板丨（如圖5)。 此頂板本體11安裝有前擋板12。且頂板本體u上更 安裝有頂板框13，此頂板框13是焊接在一對頂板臂17(如 圖2)上。也就是說’一對頂板臂π是由頂板框13來相互 連結。而且’-對頂板臂17上分別安裝有可擺動以鎖固頂 板1或解除頂板1之鎖固之鎖固桿14。此一對鎖固桿14是 由軸桿15來連結。因此’只要一邊的鎖固桿14以軸桿μ 為中心擺動，則另一邊的鎖固桿14也會隨之連動而以軸桿 15為中心擺動。 圖2是折疊式桌的側視圖。圖2A顯示頂板本體^位 在使用位置之狀態，也就是顯示使用時的折疊式桌。另外圖 2Β顯示頂板本體U位在收合位置之狀態，也就是顯示收合 時的折疊式桌。另外’本發明之折疊式桌是左右對稱，因此 只顯示_邊的側面’而省略另—邊側面的圖示。 201200071 鎖固桿14推向頂板卜使其沿著箭頭50所示之方向擺動， 即可解除鎖固。位在使用位置之頂板本體u，係相對於接 地面3略水平地受到支持。而藉由解除頂板}之鎖固，可將 頂板1如圖2B所示旋動至收合位置。另外，前擋板^是 透過連桿18連結於桌腳框21，同時透過未圖示之連桿連結 於頂板卜因此’若頂板】在使用位置及收合位置間旋動， 則前擋板12也會隨著頂板丨之旋動而移動。 使用時的頂板1係受到桌腳框21所支持。因此，安裝 於桌腳框21之底框部213的底座蓋24與螺固在底框部⑴ 的調整件25接觸著接地面3<>當頂板}移動至收合位置時， 頂板1會以收容於桌腳框21内之内腳體23作為支持物往 遠離接地面3之方向移動。此時，因桌腳框21也隨著頂板 1移動，因此底座蓋24與調整件25也往遠離接地面3之方 向移動。藉此，收合時之頂板i受内腳體23支持。因此， 就有女裝在内腳體23之一對腳輪26接觸接地面3。 桌腳框21之前端嵌設有導件蓋27。藉此導件蓋27，頂 板臂Π之凸輪部等受到來自外部的遮蔽。因此，可防止使 用者不小心讓手指等進入頂板臂17與桌腳框21之縫隙等而 被挾住。另外，導件蓋27形成有可用來掛物品的掛鉤28〇 另外，若不須要掛物品，也可以不形成掛鉤28。 圖3顯示折疊式桌之頂板1。圖3A是頂板1之概略側 視圖，圖3B是放大顯示圖3A中之A_A截面。另外，圖3a 中省略了前擋板12及鎖固彈簧之圖示。另外，因頂板1之 構造為左右對稱，因此在_ 3A中只顯示頂;i 一邊的側面。 6 201200071 圖3A中’頂板！之頂板本體u之下面，也就是在桌 腳2那-側之面上，螺固有從鋼板形成之頂板臂口。此頂 板臂Π是由支持頂板本體^的支持部m、為折疊式桌之 凸輪的凸輪部172、及位於支持部171與凸輪部172間的中 央部173所構成，且具有匸字形之截面。且頂板臂17是藉 由螺絲來螺固在頂板本體丨丨上，該螺絲係插入於中央部173 所形成之螺孔者。另外，支持部171是焊接在頂板框Η上。 而且，頂板臂17上安裝有鎖固桿14。鎖固桿14可以 軸桿15為中心擺動，且鎖固桿14之内側安裝有鎖固板 141。如此，鎖固板141在頂板丨被支持在使用位置時，抵 接桌腳框21之貫通框219之第一卡止溝41(如圖5a)。另 外，頂板臂17之支持部π〗與凸輪部172，是由止擋件i科 來連結。此止擋件174在頂板1被支持在使用位置時，抵接 貫通框219之第二卡止溝42(如圖5A)。而且，支持部⑺ 及凸輪部172上形成有& 177,供支持頂板！之支持轴插入。 另外，凸輪部172上形成有抵接部175，在頂板本體n 位在收合位置時，抵接部175抵接桌腳2之支持面。而且， 凸輪部172上形成有對向部176 ’當頂板本體^位在使用 位置時’對向冑176面對桌腳2之支持面。如此，自支持軸 之孔177至抵接部175之距離，比自支持軸之孔177至對向 部176之距離更長。因此，藉由頂板本體之旋動，令抵 接部175抵接桌腳2之支持面且糾支持面上後，支持轴就 往遠離接地面之方向移動。藉此，具有凸輪部172之頂板臂 17也往遠離接地面之方向移動。另外，在頂板】安裝在桌 201200071 腳2之狀態下，自支持軸19至抵接部175之距離，將比自 支持軸19至對向部176之距離更長。（如圖ι〇)。 圖A中之α·A截面，即圖3B所示，鎖固桿μ上 安裝有鎖固板141。而鎖固板141隨著鎖固桿14之擺動而 擺動另外鎖固彈簧144嵌入鎖固桿14之彈簧承接部 143。此鎖固彈簧144之一端抵接頂板臂17之中央部⑺， 另一端抵接鎖固桿14之止擋件148(如圖4)。藉此，鎖固彈 簧144對鎖固桿14往遠離頂板本體11之方向賦予彈性勢 月b因此，在解除鎖固時，使用者須對抗鎖固彈簧丨44之彈 力來讓鎖固桿14擺動。 而且，鎖固桿〗4及鎖固板141是被軸桿15所插入。而 軸桿15也插入頂板臂17之凸輪部172及支持部⑺之孔 142。因此’鎖固桿14可以轴桿15為中心擺動。另外，軸 桿15是藉由外侧固定件145安裝在凸輪部172，並藉由内 側固定件146安裝在支持部ι71。 圆4顯示刀解之鎖固桿14、鎖固板141及鎖固彈簧 144。鎖固桿14之内部形成有收容鎖固㈣i之溝μ?。而 鎖固板⑷嵌入此溝147 +。另夕卜鎖固桿14上形成有彈 簧承接部143。而鎖固彈簧144嵌入此彈簧承接部143中。 嵌入彈簣承接部143中的鎖固彈簧144之—端抵接鎖固桿 14之止擋件148。 鎖固板141及彈簧承接部丨43之内側形成有供軸桿^ $ 插入之孔149。另外’因本實施例之轴桿15之截面為矩形， 因此各孔149皆具有矩形之外形。另外，鎖固板141上形成 201200071 有卡止凸起40’抵接桌腳框21之貫通框2i9之卡止溝。 ㈣圖5A是顯示頂板1位於使用位置之狀態下桌腳2的概 略側視圖。另夕卜’圖5B是放大顯示圖5八中的Μ截面。 又’由於一對桌腳2皆具有對稱的構造，因此圖5中只顯示 :邊的桌腳2’而省略說明另-邊的桌腳2。又，本實施例 中的桌腳2具有掛鉤28(如圖2)，但為了簡化說明， 掛鉤28的圖示。 桌腳2之桌腳框21具有底框部213及框本體212。此 框本體212是焊接成相對於底框部213呈傾斜的狀態。另 外’桌腳框21上螺固有由鋼板形成的貫通框219，作為連 接頂板1及桌腳2的支持構件。此貫通框219上形成有第— 卡止溝41及第二卡止溝42。而第一卡止溝41及第二卡止 冓卡止有鎖固板14丨之卡止凸起40(如圖4)，該鎖固板 141之卡止凸起40係連接在鎖固桿14上者。也就是說，藉 由此貫通框219之第一卡止溝41及第二卡止溝42'與鎖固 板141的卡止凸起4〇，構成了折疊式桌的鎖固機構。 另外，貫通框219上焊接有貫通材22，透過此貫通材 22來連結另一邊桌腳的貫通框219。而且，貫通框219上形 成有孔214供支持頂板丨之支持軸19(如圖6)之一端插入。 另外，支持軸19之另一端插入頂板臂π之孔177(如圖3)。 藉此，頂板1連接桌腳2且受到支持。以下利用圖6，來說 明頂板1連接桌腳2之狀態。 圖6顯示使用時之折疊式桌之頂板1及桌腳2之連接部 分’亦放大顯示圖2中的C-C截面。圖6中，桌腳框21之 201200071 框本體212上連接有貫通框219,且該貫通框219焊接有貫 通材22。另外’支持軸19插入頂板臂〗7之支持部⑺及 凸輪部172之孔177。藉此，支持部171及凸輪部172透過 支持軸19連接貫通框219。也就是說，頂板丨是透過支持 部171及凸輪部172來連接具有框本體212之桌腳2。 如此，頂板丨只藉由支持軸19而連接於桌腳2且受到 支持。因此，可減少零件個數，並簡單地組合此折疊式桌。 而且，只要拆下支持軸19,即可輕易地分離頂板丨與桌腳2。 藉此’可縮小折疊式桌之收合空間，同時可輕易地搬運此折 疊式桌。另外，在使用時，凸輪部172之對向部176與收容 在桌腳框内之⑽體23之内端塊231之間有空隙存在。 也就是說’内腳體23不支持頂板i。 另外，® 6中，框本體212與内腳體23之間配置有内 板215。而貫通框219與内板215共同螺固在桌腳框21上。 然而’貫通框219與桌腳框21亦可—體成形。此時，貫通 材22焊接在桌腳框21上，同時桌腳框21之框本體212之 一部分往頂板i的方向延伸。而鎖固板141之卡止凸起，如 圖4)卡止在此延伸的部分。 回到圖5,桌腳框21内收容有内腳體23，而内腳體23 上安裝有腳輪26 1桌腳框21之前端有導件蓋27插入， 以限制内腳體23之移動。因此，當内腳體23將桌腳框。 之内側往頂板1的方向推動時，内腳體23會頂到導件蓋27 之：部分。藉此可防止組合桌腳2時内腳體23從桌腳框21 脫洛。另外，導件蓋27具有插入桌腳框21内之導件部271。 10 201200071 而安裝内腳體23時，内腳體23之内端塊231插入導件部 271之内側。藉此，即使内腳體23在桌腳框21之内部活動， 也可藉由導㈣271肖内端塊231之抵接來限制内腳體Μ 的活動。因此，在移動折疊式桌時，可防止内腳體U與桌 腳框21之内面接觸而產生嗓音。 而且，内腳體23具有安裝有腳輪26之基部232、及連 結基部232之内腳體本體233。内腳體本體233 $内部中空 之筒狀，在内腳體23與桌腳框21之間安裝有内導件234。 更詳細來說’内導件234安裝在内腳體本體加之外側，且 位於框本體212之内側。而内腳體23是在安裝有内導件234 的狀態下，收容至桌腳框21内。 關於内導件234,以下利用圖沾作更詳細的說明。此 内導件234具有卡止凸起235’此卡止凸起235與内腳體本 體233之卡止孔236相卡止。另外，内導件234之外面形成 有複數的凸起部237,抵接框本體212之内面。藉此，即使 對桌腳框21内之内腳體23施力，也會因複數的凸起π 抵接框本體212之内面，而限制内腳體23的移動。 又内導件234之内側尺寸設定為可抵接内腳體本體 233之外面。另外，内導件234係從内腳體23之前端嵌入， 且可滑動至内腳體本體233之卡止孔236為止。而且藉由將 内導件234之卡止凸起235滑動到與卡止孔236相卡止的位 置，便可安裝内導件234。又，内腳體23可相對於桌腳框 21往接地面3的方向及頂板i的方向移動。也就是說，内 腳體23可在桌腳框21内，往接地面3的方向及頂板i的方 201200071 向移動。 另外’桌腳框21之底框部213後側的高度，形成為比 前側的高度低。也就是說，底框部213在使用者之側的高 度，形成為比前擋板12之側的高度低。而配置在底框部213 内側之内腳體23的基部232也形成為後側的高度比前側的 高度低。藉此’可防止使用者在出入折疊式桌位於使用者之 侧的空間時，腳被底框部213絆到。因此，使用者可以容易 地出入。 參見圖7’更進一步詳細說明桌腳框21。又，圖7是顯 示從折疊式桌的内側看桌腳框21的狀態，也就是從折疊式 桌的中央側看桌腳框21的狀態。又，圖7的上側顯示插入 桌腳框21之導件蓋27。而圖7的右側顯示螺固在桌腳框2i 外側之貫通框219。 導件蓋27形成有第一螺孔276。而貫通框219上形成 有第一螺孔216、第二螺孔217、及第三螺孔218。而且， 螺固在桌腳框21之框本體212及桌腳框21之内側的内板 215上，也形成有第一螺孔226、第二螺孔227、及第三螺 孔228。又，貫通框219上也形成有供用以支持頂板【之支 持軸19插入之孔214。而且，貫通框219之外面，也就是 不面向框本體212之面上，焊接有貫通材22。 導件蓋27之第一螺孔276、貫通框219之第一螺孔 216、及框本體212及内板215之第一螺孔226各自之位置 配置在同軸上。而第二螺孔217及227、第三螺孔218及228 各自之位置也配置在同軸上。而第一螺孔276、216及226 12 201200071 被來自貫通框219之外面側的螺絲插入。藉此，貫通框219、 内板215及導件蓋27相對連接在框本體2 ^ 2上。同樣地， 貝通框219的第二螺孔217、框本體212及内板215之第二 螺孔227也有螺絲插入，貫通框219的第三螺孔218與框本 體2 i 2及内板2! 5的第三螺孔2 2 8也有螺絲插入。 框本體212上焊接有底框部213。而底框部213的後側 :固有調整件25。在使用時’藉由轉動此調整件25，可調 即折疊式桌的高度。另外，底框部213的前側也螺固有底座 蓋24。 此底座蓋24在内部有段差部241。此段差部241的位 置對應内腳體23之基部232的段差部238(如圖9)的位置。 藉此，即使内腳體23往脫落的方向移動，在内腳體23自桌 腳框21脫落前，會抵接底座蓋24之段差部241。因此，可 防止内腳體23自桌腳框21脫落。藉由如此的段差部24 j， 便無須另設防止内腳體23脫落的構件，可減少零件個數。 接著，參見圖8,更詳細說明導件蓋27。圖8A顯示從 折疊式桌的内側方向看到的導件蓋27，冑8B顯示圖8a中 的D-D截面。又’圖8C顯示從折疊式桌的前側看到的導件 蓋27。另外，本實施例的導件蓋27上形成有掛鉤28，但省 略了掛鉤28的圖示。而在圖8B中，除了導件蓋27以外， 内腳體23、内板215、螺絲277及桌腳框21皆以2點虛線 來顯示。 導件蓋27形成有嵌合内腳體23之第—凹部279。而在 第-凹部279之外側，形成有供安裝在桌腳框21内面之内 13 201200071 板出嵌合之第二凹部278。而且，導件蓋27形成有螺孔 276 °插入該螺孔276之螺絲277貫通桌腳框21及内板215 之第-螺孔226。藉此’導件蓋27相對螺固在桌腳框21上。 牛蓋27的下端’也就是桌腳框21之側形成有導件部 271 ’導件部271的端部形成有斜面280。藉由此斜面28〇， 導件部271的端部變得較細。因此導件蓋27亦可輕易地插 入處在已經收容内腳體23之狀態的桌腳框21。 一另外’如圖8C所示，導件蓋27的前端部分形成有第 二凹部28卜以確保頂板臂17之凸輪部172之配置空間。 在折疊式桌已組合之狀態下，凸輪部172的對向部I%及抵 ” 175位於第三凹部281的内側。因此，不管在使用時還 是收合時，對向部176及抵接部Π5都處在受到導件蓋27 之頭部282所遮蔽之狀態。 接著’利用圖9，來更詳細說明内腳體23。内腳體23 之内腳體本體233及基部232係由鋼板形成，内腳體本體 233焊接在基部232上。而基部加之一部分形成有朝向内 腳體本體233凸出之烊接塊。另外，基部232之前側形成有 段差部238。又，安裝於桌腳框21之底框部213的底座蓋 2^中’在與此段差冑⑽之位置相對應之位置上形成有段 差部24卜藉此，可防止内腳體23自桌腳框21脫落。又， 基部232與内腳體本體233,亦可從—塊鋼板_體成形。 基部232上有腳輪26螺固，腳輪％可以作出以螺絲為 中心擺動的動作。因此，在移動折疊式桌時，可將腳輪26 的方向改變為朝向移動方向。又’用來螺固腳輪26之螺孔 14 201200071 不限定為2個。亦可藉由形成3個以上的螺孔，使腳輪26 的位置可以改變。 内腳體23之内腳體本體233之前端，也就是頂板丨之 側的端部’嵌有樹脂製的内端塊23丨。此内端塊231上形成 有相對於凸輪部172之對向部176傾斜的支持面239。而支 持面239在頂板丨位於收合位置時，抵接頂板臂17之凸輪 172之抵接部175。藉此，頂板1將經由内端塊231、内 腳體本體233、基部232及腳輪26而得到支持。 當要組合具有如此内腳體23之桌腳2時，首先在内腳 體23的基部232螺固腳輪26。接著内導件234嵌入内腳體 本體233。此時’滑動内導件234，直到卡止凸起235(如圖 5)與内腳體本體233之卡止孔236互相卡止為止。之後，内 端塊231嵌入内腳體本體233之前端。 接著’已組合的内腳體23插入桌腳框21内。而貫通框 219及内板215螺固到桌腳框21上。最後，導件蓋27嵌入 桌腳框21之前端，並螺固在桌腳框21上。又，已組合的桌 腳2之貫通框219’是由頂板1之頂板臂17與支持軸19來 連接。 接著，利用圖10來說明折疊式桌的動作。圖1〇A顯示 使用時的狀態’圖1 〇B顯示掀起中途的狀態，圖1 〇c顯示 收合時的狀態。另外，圖10中也顯示鎖固機構之動作及凸 輪部172之動作。又，為便於說明，省略了導件蓋27等構 件的圖示。 首先’說明鎖固機構的動作。在使用時的折疊式桌，鎖 15 201200071 固板141之卡止凸起40抵接貫通框219之第—卡止溝41。 而頂板臂17之止擋件174抵接貫通框219之第二卡止溝 42。藉此，頂板1在使用位置時，相對於桌腳2受到鎖固且 固定。又，當頂板1位在使用位置時，鎖固桿14受到鎖固 彈簧144(如圖4)賦予往桌腳2方向的彈性勢能。 當要收合頂板1時，使用者對抗鎖固彈簧144之彈力， 令鎖固桿以軸桿15為中心往頂板】的方向擺動。卡止凸 起40與第一卡止溝41之卡止因此解除。而在鎖固解除後， 使用者以支持軸19為中心、，沿著箭頭5〗所示的方向將頂板 1掀起。藉此，鎖固桿14及鎖固板141往圖_所示的掀 起中途位置移動。又，止擋件m也同時往圖i〇B所示的 掀起中途的位置移動。其結果，止擋件m會往遠離第二卡 止溝42的方向移動。 ▽ 立置之後，使 者停止操作鎖固桿…則鎖固桿14就會再度受到鎖固彈 =予往桌腳2方向之彈性勢能。藉此，鎖固桿 二為中心往箭頭52所示之桌腳方向擺動。其結果，鎖I 板】41之卡止凸起4〇抵接 置時，相對於卓腳第—卡止溝42,頂板1在收合1 相對於桌腳2文到鎖固且固定。 接著，說明凸輪部丨72的201200071 VI. Description of the Invention: [Technical Field] The present invention relates to a folding table capable of folding a top plate from a use position to a folding position, a top plate for the folding table, and the folding table The method of folding the table legs and the top plate. [Prior Art] Conventionally, there has been known a table (4) in which the top plate can be folded from the use position to the folding position for storage in a warehouse or the like. In addition, this (four) stacking table has a caster that protrudes downward from the lower end of the leg to contact the ground, and becomes a type of mobile table that can be moved on the ground (Patent Document: Special Opening 2〇〇8•购%号 bulletin) : Yes, Figure 1 and Figure 7). Such a mobile table has a swingable fine adjustment lock lever, a link member that drives the float linkage tube as the fine adjustment lock lever swings, and a lifting mechanism that extends the caster as the float linkage tube rotates. Moreover, with the lifting mechanism, when the top plate is in the use position, the chat wheel will leave the ground, and when the top plate is in the folded position, the casters will contact the ground 0 - the lifting mechanism of the moving table Multiple components such as levers and floats. Moreover, the rods and the like must be connected so that each of them can be actuated. Therefore, the number of parts is large and the combination is complicated, which increases manufacturing costs and increases manufacturing time. SUMMARY OF THE INVENTION In order to solve the foregoing problems, the folding table of the present invention comprises: a top plate body, = moved to a use position and a folding position; a cam is coupled to the abutting body 'and can support the shaft as the center, along with the foregoing The movement of the top plate body and the 201200071 swinger; the first table leg is connected to the support shaft, and when the top plate body is in the use position, the top plate body is supported; and the second table leg is opposite to the foregoing The first table foot moves, when the top plate body is located at the folding position, and supports the top plate body through the support surface, when the top plate body is located at the use position, the support surface faces the opposite portion of the cam, when When the top plate body is located at the folding position, the support surface abuts against the abutting portion of the cam, and the distance from the support shaft to the abutting portion is longer than the distance from the support shaft to the opposing portion. The effect of the folding table of the present invention is that the first leg support can be easily switched to the second leg support by moving the top plate body from the use position to the retracted position. Moreover, the switching is achieved by a cam attached to the top body of the top plate and the support surface of the second leg. Therefore, the number of parts of the folding table can be reduced as compared with the prior art. In addition, the folding table can be easily assembled due to the small number of parts. Thereby, the manufacturing cost can be reduced while reducing the manufacturing time. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Embodiments of the invention are described below in accordance with the drawings. Fig. 1A is a plan view of the folding table of the present invention in which the n-circle 18 is a rear view of the user who sees the folding table. Further, Fig. 1A and Fig. ib show a state in which the top plate 1 is in the use position. The folding table has a top plate and a table top 2 for supporting the top plate J. This top plate 1 is supported to be movable relative to a pair of table legs 2. And the top plate 4 201200071 1 has a top plate body 11 which, in use, is supported slightly horizontally with respect to the ground 3 . Further, at the time of folding, the top plate body i 1 is supported in a state of being inclined several degrees with respect to the vertical line extending from the ground plane 3 toward the folding table. The table leg 2 has a table frame 21 as a first table leg, and supports the top plate 在 when the top plate body 11 is in the use position. Further, between the pair of leg frames 21, the through members 22 are connected to each other. Further, although not shown in Fig. i, the inner leg body 23 is accommodated as the second leg on the inner side of the leg frame 21, and the top plate 支持 can be supported when the top plate main body 11 is at the folding position (see Fig. 5). The top plate body 11 is mounted with a front bezel 12. Further, a top frame 13 is further mounted on the top plate body u, and the top frame 13 is welded to a pair of top plate arms 17 (Fig. 2). That is to say, the pair of top plate arms π are connected to each other by the top frame 13. Further, a locking lever 14 which is swingable to lock the top plate 1 or to unlock the top plate 1 is attached to the top plate arm 17, respectively. The pair of locking bars 14 are coupled by a shaft 15. Therefore, as long as the lock lever 14 on one side swings around the shaft μ, the lock lever 14 on the other side will also move in conjunction with the shaft 15 as a center. Figure 2 is a side view of the folding table. Fig. 2A shows the state in which the top plate body is in the use position, that is, the folding table in use. In addition, Fig. 2 shows the state in which the top body U is in the folded position, that is, the folding table when the folding is displayed. Further, the folding table of the present invention is bilaterally symmetrical, so that only the side surface of the _ side is displayed, and the other side surface is omitted. 201200071 The locking rod 14 is pushed toward the top plate to swing it in the direction indicated by the arrow 50, so that the locking can be released. The top body u, which is located at the use position, is supported slightly horizontally with respect to the ground 3 . By releasing the locking of the top plate, the top plate 1 can be rotated to the folded position as shown in Fig. 2B. In addition, the front bezel is connected to the leg frame 21 through the connecting rod 18, and is connected to the top plate through a connecting rod (not shown). Therefore, if the top plate is rotated between the use position and the folding position, the front bezel is used. 12 will also move with the rotation of the top plate. The top plate 1 in use is supported by the table frame 21. Therefore, the base cover 24 attached to the bottom frame portion 213 of the leg frame 21 and the adjustment member 25 screwed to the bottom frame portion (1) are in contact with the grounding surface 3<> when the top plate} is moved to the collapsed position, the top plate 1 will The inner leg 23 accommodated in the leg frame 21 is moved as a support in a direction away from the ground plane 3. At this time, since the table frame 21 also moves with the top plate 1, the base cover 24 and the adjusting member 25 are also moved away from the ground surface 3. Thereby, the top plate i at the time of folding is supported by the inner leg body 23. Therefore, there is a pair of women's inner leg 23 contacting the grounding surface 3 with the caster 26. A guide cover 27 is embedded in the front end of the leg frame 21. Thereby, the guide cover 27, the cam portion of the top arm arm, and the like are shielded from the outside. Therefore, it is possible to prevent the user from accidentally getting a finger or the like into the gap between the top arm 17 and the leg frame 21, and the like. In addition, the guide cover 27 is formed with a hook 28 for hanging the article. Alternatively, the hook 28 may not be formed if the article is not required to be hung. Figure 3 shows the top panel 1 of the folding table. Fig. 3A is a schematic side view of the top plate 1, and Fig. 3B is an enlarged view of the A_A cross section of Fig. 3A. In addition, the illustration of the front bezel 12 and the lock spring is omitted in Fig. 3a. Further, since the structure of the top plate 1 is bilaterally symmetrical, only the top side of the i side is displayed in the _3A. 6 201200071 Figure 3A's top plate! Below the top body u of the top plate, that is, on the side of the side of the table leg 2, the top of the top plate is formed from the steel plate. The top arm arm is composed of a support portion m for supporting the top plate body, a cam portion 172 which is a cam of the folding table, and a central portion 173 between the support portion 171 and the cam portion 172, and has a U-shaped cross section. The top plate arm 17 is screwed to the top plate body by screws, and the screws are inserted into the screw holes formed in the center portion 173. Further, the support portion 171 is welded to the top frame frame. Moreover, a locking rod 14 is mounted on the top arm 17. The lock lever 14 is swingable about the shaft 15, and a lock plate 141 is mounted on the inner side of the lock lever 14. Thus, the locking plate 141 abuts against the first locking groove 41 of the through frame 219 of the leg frame 21 when the top plate is supported in the use position (Fig. 5a). Further, the support portion π of the top arm 17 and the cam portion 172 are connected by the stopper i. The stopper 174 abuts against the second locking groove 42 of the through frame 219 when the top plate 1 is supported in the use position (Fig. 5A). Further, a & 177 is formed on the support portion (7) and the cam portion 172 for supporting the top plate! The support shaft is inserted. Further, the cam portion 172 is formed with an abutting portion 175 which abuts against the support surface of the leg 2 when the top plate main body n is in the retracted position. Further, the cam portion 172 is formed with a facing portion 176' facing the supporting surface of the table leg 2 when the top plate body is in the use position. Thus, the distance from the hole 177 of the support shaft to the abutment portion 175 is longer than the distance from the hole 177 of the support shaft to the opposite portion 176. Therefore, by the rotation of the top plate body, the abutting portion 175 abuts against the supporting surface of the leg 2 and the supporting surface is moved, and the supporting shaft moves away from the grounding surface. Thereby, the top plate arm 17 having the cam portion 172 is also moved away from the ground contact surface. Further, in the state where the top plate is mounted on the table 201200071, the distance from the support shaft 19 to the abutment portion 175 is longer than the distance from the support shaft 19 to the opposite portion 176. (Figure ι〇). In the α·A section in Fig. A, as shown in Fig. 3B, a locking plate 141 is attached to the locking rod μ. The locking plate 141 is swung with the swinging of the locking rod 14 and the other locking spring 144 is inserted into the spring receiving portion 143 of the locking rod 14. One end of the locking spring 144 abuts against the central portion (7) of the top plate arm 17, and the other end abuts the stop member 148 of the locking bar 14 (Fig. 4). Thereby, the locking spring 144 gives the elastic rod b to the direction of the locking rod 14 away from the top plate body 11. Therefore, when the locking is released, the user must swing the locking rod 14 against the elastic force of the locking spring 丨44. . Further, the lock lever 4 and the lock plate 141 are inserted by the shaft 15. The shaft 15 is also inserted into the cam portion 172 of the top plate arm 17 and the hole 142 of the support portion (7). Therefore, the "locking lever 14" can swing around the shaft 15. Further, the shaft 15 is attached to the cam portion 172 by the outer fixing member 145, and is attached to the supporting portion ι71 by the inner side fixing member 146. The circle 4 shows the knife lock lever 14, the lock plate 141, and the lock spring 144. The inside of the locking rod 14 is formed with a groove for receiving the locking (four) i. The locking plate (4) is embedded in this groove 147+. Further, a spring receiving portion 143 is formed on the lock lever 14. The locking spring 144 is embedded in the spring receiving portion 143. The end of the locking spring 144 embedded in the magazine receiving portion 143 abuts the stopper 148 of the locking rod 14. A hole 149 through which the shaft is inserted is formed inside the lock plate 141 and the spring receiving portion 丨43. Further, since the cross section of the shaft 15 of the present embodiment is rectangular, each of the holes 149 has a rectangular outer shape. Further, the locking plate 141 is formed with a locking groove that the 201200071 locking projection 40' abuts against the through frame 2i9 of the leg frame 21. (4) Fig. 5A is a schematic side view showing the table leg 2 in a state where the top plate 1 is in the use position. Further, Fig. 5B is an enlarged cross-sectional view of Fig. 5B. Further, since the pair of table legs 2 have a symmetrical structure, only the table legs 2' of the side are shown in Fig. 5, and the table legs 2 of the other side are omitted. Further, the table leg 2 in this embodiment has a hook 28 (Fig. 2), but for the sake of simplicity of explanation, the hook 28 is illustrated. The table leg frame 21 of the table leg 2 has a bottom frame portion 213 and a frame body 212. The frame body 212 is welded to be inclined with respect to the bottom frame portion 213. Further, the through frame 219 in which the snail is formed of a steel plate is used as a supporting member for connecting the top plate 1 and the table leg 2. A first locking groove 41 and a second locking groove 42 are formed in the through frame 219. The first locking groove 41 and the second locking yoke are locked with the locking protrusions 40 of the locking plate 14 (FIG. 4), and the locking protrusions 40 of the locking plate 141 are connected to the locking rod. 14 on the one. In other words, the first locking groove 41 and the second locking groove 42' of the through frame 219 and the locking projections 4' of the locking plate 141 form a locking mechanism for the folding table. Further, the through-frame 22 is welded to the through frame 219, and the through-frame 22 is connected to the through-frame 219 of the other leg. Further, a through hole 214 is formed in the through frame 219 for insertion of one end of the support shaft 19 (Fig. 6) for supporting the top plate. In addition, the other end of the support shaft 19 is inserted into the hole 177 of the top plate arm π (Fig. 3). Thereby, the top plate 1 is connected to the table legs 2 and is supported. Referring to Fig. 6, the state in which the top board 1 is connected to the table foot 2 will be described below. Fig. 6 shows the connecting portion of the top plate 1 and the table leg 2 of the folding table in use, and the C-C cross section in Fig. 2 is also enlarged. In Fig. 6, a through frame 219 is connected to the frame body 212 of the 201200071 of the leg frame 21, and the through frame 219 is welded with the through-web 22. Further, the support shaft 19 is inserted into the support portion (7) of the top arm 7 and the hole 177 of the cam portion 172. Thereby, the support portion 171 and the cam portion 172 are connected to the through frame 219 through the support shaft 19. That is, the top plate 连接 connects the table legs 2 having the frame body 212 through the support portion 171 and the cam portion 172. Thus, the top plate 连接 is connected to the table foot 2 only by the support shaft 19 and is supported. Therefore, the number of parts can be reduced, and the folding table can be simply combined. Moreover, the top plate 丨 and the table legs 2 can be easily separated by simply removing the support shaft 19. By this, the folding space of the folding table can be reduced, and the folding table can be easily carried. Further, in use, there is a gap between the opposing portion 176 of the cam portion 172 and the inner end block 231 of the (10) body 23 housed in the leg frame. That is to say, the inner leg body 23 does not support the top plate i. Further, in the ® 6, an inner plate 215 is disposed between the frame body 212 and the inner leg body 23. The through frame 219 and the inner plate 215 are screwed together on the leg frame 21. However, the through frame 219 and the leg frame 21 can also be formed in a body. At this time, the through-hole 22 is welded to the leg frame 21, and a part of the frame body 212 of the leg frame 21 extends in the direction of the top plate i. The locking projection of the locking plate 141, as shown in Fig. 4), is locked at the extended portion. Referring back to Fig. 5, the foot frame 21 houses the inner leg body 23, and the inner leg body 23 is provided with the caster 26. The front end of the leg frame 21 is inserted with a guide cover 27 to restrict the movement of the inner leg body 23. Therefore, when the inner leg body 23 will frame the table legs. When the inner side is pushed in the direction of the top plate 1, the inner leg body 23 will protrude to the portion of the guide cover 27. Thereby, it is possible to prevent the leg body 23 from being detached from the leg frame 21 when the table legs 2 are combined. In addition, the guide cover 27 has a guide portion 271 that is inserted into the leg frame 21. 10 201200071 When the inner leg body 23 is attached, the inner end piece 231 of the inner leg body 23 is inserted into the inner side of the guide portion 271. Thereby, even if the inner leg body 23 moves inside the leg frame 21, the movement of the inner leg body can be restricted by the abutment of the inner end block 231. Therefore, when the folding table is moved, the inner leg U can be prevented from coming into contact with the inner surface of the leg frame 21 to generate a click sound. Further, the inner leg body 23 has a base portion 232 to which the caster 26 is attached, and an inner leg body 233 which connects the base portion 232. The inner leg body 233 is internally hollow, and an inner guide 234 is attached between the inner leg body 23 and the leg frame 21. More specifically, the inner guide 234 is mounted on the outer side of the inner leg body and is located inside the frame body 212. The inner leg body 23 is housed in the leg frame 21 in a state in which the inner guide 234 is attached. Regarding the inner guide 234, a more detailed description will be made below with reference to the drawings. The inner guide 234 has a locking projection 235' which is engaged with the locking hole 236 of the inner leg body 233. Further, a plurality of convex portions 237 are formed on the outer surface of the inner guide 234 to abut against the inner surface of the frame body 212. Thereby, even if the inner leg body 23 in the leg frame 21 is biased, the movement of the inner leg body 23 is restricted by the plural projections π abutting against the inner surface of the frame body 212. Further, the inner guide member 234 is sized to abut against the outer surface of the inner leg body 233. Further, the inner guide 234 is fitted from the front end of the inner leg body 23 and slidable to the locking hole 236 of the inner leg body 233. Further, the inner guide 234 can be attached by sliding the locking projection 235 of the inner guide 234 to a position where it engages with the locking hole 236. Further, the inner leg body 23 is movable in the direction of the grounding surface 3 and the direction of the top plate i with respect to the table leg frame 21. That is, the inner leg body 23 can be moved in the direction of the ground plane 3 and the side of the top plate i 201200071 in the leg frame 21. Further, the height of the rear side of the bottom frame portion 213 of the leg frame 21 is formed to be lower than the height of the front side. That is, the height of the bottom frame portion 213 on the side of the user is formed to be lower than the height of the side of the front bezel 12. On the other hand, the base portion 232 of the inner leg body 23 disposed inside the bottom frame portion 213 is also formed such that the height of the rear side is lower than the height of the front side. This prevents the user from being caught by the bottom frame portion 213 when the user enters the space where the folding table is located on the side of the user. Therefore, the user can easily enter and exit. The table frame 21 will be described in further detail with reference to Fig. 7'. Further, Fig. 7 is a view showing a state in which the leg frame 21 is seen from the inner side of the folding table, that is, a state in which the leg frame 21 is viewed from the center side of the folding table. Further, the upper side of Fig. 7 shows the guide cover 27 inserted into the leg frame 21. On the right side of Fig. 7, a through frame 219 which is screwed to the outside of the leg frame 2i is shown. The guide cover 27 is formed with a first screw hole 276. The through hole 219 is formed with a first screw hole 216, a second screw hole 217, and a third screw hole 218. Further, a first screw hole 226, a second screw hole 227, and a third screw hole 228 are formed in the inner plate 215 which is screwed to the frame body 212 of the table leg frame 21 and the inside of the table leg frame 21. Further, a hole 214 for supporting the insertion of the support shaft 19 of the top plate is formed on the through frame 219. Further, the through material 22 is welded to the outer surface of the frame 219, that is, the surface of the frame body 212. The first screw hole 276 of the guide cover 27, the first screw hole 216 of the through frame 219, and the first screw hole 226 of the frame body 212 and the inner plate 215 are disposed coaxially. The positions of the second screw holes 217 and 227 and the third screw holes 218 and 228 are also disposed coaxially. The first screw holes 276, 216 and 226 12 201200071 are inserted by screws from the outer surface side of the through frame 219. Thereby, the through frame 219, the inner plate 215, and the guide cover 27 are oppositely connected to the frame body 2^2. Similarly, the second screw hole 217 of the Beton frame 219, the frame body 212 and the second screw hole 227 of the inner plate 215 are also screwed, and the third screw hole 218 of the through frame 219 and the frame body 2 i 2 and the inner plate 2 are similarly inserted. ! The third screw hole 2 2 8 of 5 also has a screw insertion. A bottom frame portion 213 is welded to the frame body 212. The rear side of the bottom frame portion 213 is an inherent adjustment member 25. When in use, by rotating the adjustment member 25, the height of the folding table can be adjusted. Further, the front side of the bottom frame portion 213 is also screwed to the base cover 24. This base cover 24 has a step portion 241 inside. The position of the step portion 241 corresponds to the position of the step portion 238 (Fig. 9) of the base portion 232 of the inner leg body 23. Thereby, even if the inner leg body 23 moves in the direction in which it is detached, the step portion 241 of the base cover 24 abuts before the inner leg body 23 comes off from the table frame 21. Therefore, the inner leg body 23 can be prevented from coming off the table frame 21. With such a step portion 24j, it is not necessary to separately provide a member for preventing the inner leg body 23 from coming off, and the number of parts can be reduced. Next, referring to Fig. 8, the guide cover 27 will be described in more detail. Fig. 8A shows the guide cover 27 as seen from the inside direction of the folding table, and the 胄 8B shows the D-D section in Fig. 8a. Further, Fig. 8C shows the guide cover 27 as seen from the front side of the folding table. Further, the guide cover 27 of the present embodiment is formed with a hook 28, but the illustration of the hook 28 is omitted. In Fig. 8B, in addition to the guide cover 27, the inner leg body 23, the inner plate 215, the screw 277, and the table leg frame 21 are all shown by two dotted lines. The guide cover 27 is formed with a first recess 279 that fits the inner leg body 23. On the outer side of the first recess 279, a second recess 278 is formed for mounting in the inner surface of the leg frame 21 13 201200071. Further, the guide cover 27 is formed with a screw hole 276. The screw 277 inserted into the screw hole 276 penetrates the leg frame 21 and the first screw hole 226 of the inner plate 215. Thereby, the guide cover 27 is relatively screwed to the leg frame 21. The lower end of the cow cover 27, that is, the side of the table frame 21, is formed with a guide portion 271. The end portion of the guide portion 271 is formed with a slope 280. By this inclined surface 28, the end portion of the guide portion 271 becomes thinner. Therefore, the guide cover 27 can be easily inserted into the leg frame 21 in a state in which the inner leg body 23 has been accommodated. Further, as shown in Fig. 8C, the front end portion of the guide cover 27 is formed with a second recess 28 to secure the arrangement space of the cam portion 172 of the top plate arm 17. In a state in which the folding table has been assembled, the facing portion I% and the abutting portion 175 of the cam portion 172 are located inside the third recess portion 281. Therefore, the opposing portion 176 and the abutting portion are used both at the time of use and at the time of folding. The crucible 5 is in a state of being shielded by the head portion 282 of the guide cover 27. Next, the inner leg body 23 will be described in more detail with reference to Fig. 9. The inner leg body 233 and the base portion 232 of the inner leg body 23 are formed of a steel plate. The inner leg body 233 is welded to the base portion 232. One of the base portions is formed with a splicing block projecting toward the inner leg body 233. Further, the front portion of the base portion 232 is formed with a step portion 238. Further, it is mounted on the leg frame The base cover 2' of the bottom frame portion 213 of the bottom portion 213 is formed with a step portion 24 at a position corresponding to the position of the step (10), thereby preventing the inner leg body 23 from coming off the leg frame 21. The base portion 232 and the inner leg body 233 may also be formed from a steel plate body. The base portion 232 has a caster 26 screwed thereon, and the caster % can be pivoted around the screw. Therefore, when moving the folding table, Change the direction of the caster 26 to the direction of movement. Also 'for screwing The screw hole 14 of the caster 26 201200071 is not limited to two. The position of the caster 26 can also be changed by forming three or more screw holes. The front end of the foot body 233 of the inner leg body 23, that is, the top plate 丨The end portion of the side is embedded with a resin inner end block 23A. The inner end block 231 is formed with a support surface 239 which is inclined with respect to the opposite portion 176 of the cam portion 172. The support surface 239 is located at the top plate. When the position is closed, the abutting portion 175 of the cam 172 of the top plate arm 17 is abutted. Thereby, the top plate 1 is supported via the inner end block 231, the inner leg body 233, the base portion 232 and the casters 26. At the table leg 2 of the inner leg body 23, the caster 26 is first screwed to the base portion 232 of the inner leg body 23. The inner guide member 234 is then inserted into the inner leg body 233. At this time, the inner guide member 234 is slid until the latching projection 235 (as shown in Fig. 5) and the locking hole 236 of the inner leg body 233 are locked to each other. Thereafter, the inner end block 231 is inserted into the front end of the inner leg body 233. Then, the combined inner leg 23 is inserted into the leg frame. 21, and the through frame 219 and the inner plate 215 are screwed to the leg frame 21. Finally, the guide cover 27 is embedded in the table leg The front end of the 21 is screwed to the table frame 21. Further, the through frame 219' of the combined table leg 2 is connected by the top arm 17 of the top plate 1 and the support shaft 19. Next, the folding will be described using FIG. The operation of the table. Fig. 1A shows the state during use. Fig. 1 〇B shows the state in the middle of the pick-up, and Fig. 1 shows the state at the time of folding. In addition, the action of the locking mechanism and the cam are also shown in Fig. 10. The operation of the portion 172. For the sake of convenience of explanation, the members such as the guide cover 27 are omitted. First, the operation of the locking mechanism will be described. Folding table in use, lock 15 201200071 The locking projection 40 of the fixing plate 141 abuts against the first locking groove 41 of the through frame 219. The stopper 174 of the top arm 17 abuts against the second locking groove 42 of the through frame 219. Thereby, the top plate 1 is locked and fixed with respect to the table leg 2 when in the use position. Further, when the top plate 1 is in the use position, the lock lever 14 is biased toward the table 2 by the lock spring 144 (Fig. 4). When the top plate 1 is to be folded, the user opposes the elastic force of the locking spring 144, so that the locking rod swings in the direction of the top plate with the shaft 15 as the center. The locking of the locking projection 40 and the first locking groove 41 is thus released. After the lock is released, the user lifts the top plate 1 in the direction indicated by the arrow 5 with the support shaft 19 as the center. Thereby, the lock lever 14 and the lock plate 141 are moved to the midway position shown in Fig. _. Further, the stopper m is simultaneously moved to the position halfway up as shown in Fig. iB. As a result, the stopper m moves in a direction away from the second locking groove 42. ▽ After standing, the occupant stops operating the locking rod... The locking rod 14 is again subjected to the locking spring = the elastic potential energy to the table foot 2 direction. Thereby, the lock lever 2 swings in the direction of the table leg indicated by the arrow 52. As a result, when the locking projection 4 of the lock plate 41 is abutted, the top plate 1 is locked and fixed with respect to the table leg 2 with respect to the footrest-locking groove 42. Next, the description of the cam portion 丨72 will be described.
式卓#4@ 、動作，以及伴隨該動作之折J 式果的動作。如圖1〇A所 臂17 > 厅不，使用時的折疊式桌，在頂余 # Π之凸輪部172之對向 別之間，存在有以箭頭’與内端塊231之支持5 板臂Π之支持部171、=的：隙。而頂板1是經㈣ 19、貝通框219、框本體212 16 201200071 底框部213、底座蓋24及調整件25而受到支持。 因此，在使用時，底框部213之底座蓋24及調整件25, 是如箭頭b所示地抵接接地面3 ^也就是說，在使用時，頂 板1欠到桌腳框21的支持。又，在使用時，内腳體23因自 身的重量而在桌腳框21之内部往接地面3的方向移動。因 此’内腳體23之腳輪26也抵接接地面3。 之後，當使用者解除頂板丨之鎖固而掀起頂板丨時，如 圖10B所示，凸輪部172也隨著頂板1之旋動而擺動。也 就是說，可以支持軸19為中心擺動的凸輪部172，是作為 頂板臂17的一部分連接在頂板本體u上。因此，凸輪部 Π2會隨著頂板本體u的旋動而擺動。其結果，就如箭頭〇 所不，凸輪部172之抵接部175抵接内端塊231之支持面 239。 又在圖l〇A中，自頂板1之支持軸19至凸輪部172 之抵接部175的距離，是以箭頭g來表示。而自頂板j之支 持軸19至凸輪部172之對向部176的距離，是以箭頭“ 表示而以箭頭g表示的距離，比以箭頭h表示的距離短。 也就是說，自支持軸19至抵接部175之距離，比自支持軸 19至對向部176之距離長。 因此，隨著旋動頂板1，抵接部175如爬上支持面239 -般地往上移動到支持自239的上方。換句話說，抵接部 Π爬上支持面239而往遠離接地面3的方向移動。藉此， 抵接部175就抵接比内職231更靠近前端處、结果，隨著 旋動頂板1’自支持軸19至接地面3的距離將會變長。也 17 201200071 就是說’支持軸19往遠離接地面3之方向移動 =轴19是透過頂板臂17的支持部ΐ7ι連接頂板本 =，=貫通框219來連接桌腳框21的框本體 往遠離接地面3的W則頂板本 二Si往遠離接地面3的方向移動。而當桌腳 =1遠_地面3，則純㈣凸 腳體23的支持。 又幻Μ 圖_顯示頂板1掀起到某個程度，且頂W受到内 腳體23支持的狀態。在此狀態下，如箭W所示，調整件 25及底座蓋24自接地面3浮起，此，如是透過抵接 接地面3的腳輪26，受到内腳體23支持。 再進一步旋動頂板卜將頂板！移動到圖1〇c所示之收 合位置，則抵接部175與支持面239所抵接的位置如箭頭e 所示，移動到比支持面239更上方處。因此，支持軸㈣ 更為遠離接地面3的方向移動，頂板本體^及桌腳框Μ 也往更為遠離接地面3的方向移動。其結果，將頂板i旋動 至收合位置時，就如箭頭f所示，接地面3與調整件25及 底座蓋24之間隙成為最寬。 以上疋針對本發明的實施例作說明，但本發明並不受到 此實施例的構造限制。可以在不實質改變本發明内容的範圍 内，對上述實施例的構造作適當變更。例如，上述實施例之 貫通框219是螺固在桌腳框21的内側側面，也就是靠近頂 板1之側的側面。但是，亦可以使用與桌腳框21 一體成形 的貫通框219。此時，可使桌腳框21的一部分延伸，並藉 18 201200071 由該延伸部分來形成貫通框 219。 a另夕卜，上述實施例之頂板臂17巾，支持部i7i與凸輪 ^ 172是-體成形。但是，支持部m與凸輪部⑺亦可以 分開來形成。此時’支持部⑺與凸輪部172將分別螺固在 頂板本體11上。 而且’上述實施例之内腳體23，是由導件蓋27來防止 其脫落。但是，亦可以在⑽體23上形成長孔令插入貫 通框219之螺孔之螺絲也插入此長孔，來防止此脫落。此 時’即使對位在桌腳框21 0之内腳體23施力，也因為螺絲 抵接長孔的周緣，而可限制内腳體23的移動。 又，本發明中的内端塊231的支持面239,只要是可使 自腳輪26算起之高度變高的形狀即可。因此，支持面239 的形狀不限於傾斜平面，亦可為曲面形狀或具有些微高低差 的階梯形狀。而且，亦可不設置内端塊231，直接在内腳體 23之前端形成支持面239。 惟以上所述者，僅為本發明之較佳實施例而已，當不能 以此限定本發明實施之範圍，即大凡依本發明申請專利範圍 及發明說明内容所作之簡單的等效變化與修飾，皆仍屬本發 明專利涵蓋之範圍内。 【圖式簡單說明】 圖1係顯示折疊式桌之上面及背面之圖； 圖2係折疊式桌在使用時及收合時之側視圖； 圖3係頂板之概略側視圖； 圖4係顯示鎖固桿、鎖固板及鎖固彈簧之圖； 19 201200071 圖5係桌腳之概略側視圖； 圖6係折疊式桌在使用時之部分放大截面圖； 圖7係說明第一桌腳之圖； 圖8係說明導件蓋之圖； 圖9係說明第二桌腳之圖；及 圖10係說明折疊式桌之動作之圖。 20 201200071 【主要元件符號說明】 1…頂板 18…連桿 11…頂板本體 19…支持轴 12…前擋板 2…桌腳 13…頂板框 21··.桌腳框 14…鎖固桿 212…框本體 141···鎖固板 213…底框部 142…孔 214…孔 143···彈簧承接部 215…内板 144…鎖固彈簧 216·.·第一螺孔 145··.夕卜側固定件 217…第二螺孔 146...内側固定件 21 8…第三螺孔 147…溝 219…貫通框 148···止擋件 22…貫通材 149···子L 226···第一螺孔 1 5…轴桿 227..·第二螺孔 17…頂板臂 228."第三螺孔 171··.支持部 23…内腳體 172..·凸輪部 231…内端塊 173..·中央部 232…基部 174···止擋件 233…内腳體本體 175···抵接部 234…内導件 176···對向部 235…卡止凸起 177···孔 2 3 6…卡止孔 21 201200071 237…凸起部 282…頭部 238···段差部 3…接地面 239···支持面 40…卡止凸起 24…底座蓋 41···第一卡止溝 24卜··段差部 42···第二卡止溝 25…調整件 50…箭頭 26…腳輪 5 1…箭頭 27…導件蓋 52…箭頭 271…導件部 a…箭頭 276…第一螺孔 b…箭頭 277···螺絲 c…箭頭 278…第二凹部 d…箭頭 279…第一凹部 e…箭頭 2 8…掛釣 f…箭頭 280…斜面 g · · ·箭頭 281···第三凹部 h…箭頭 22Style Zhuo #4@, action, and the action of the J-type fruit accompanying the action. As shown in Fig. 1A, the arm 17 > hall is not, the folding table in use, in the opposite direction of the top cam section 172, there is a support 5 board with the arrow 'with the inner end block 231 The arm Π support portion 171, =: gap. The top plate 1 is supported by the (4) 19, the Beton frame 219, the frame body 212 16 201200071 bottom frame portion 213, the base cover 24 and the adjusting member 25. Therefore, in use, the base cover 24 and the adjusting member 25 of the bottom frame portion 213 abut against the grounding surface 3 as indicated by an arrow b. That is, in use, the top plate 1 owes support to the leg frame 21 . Further, at the time of use, the inner leg body 23 moves in the direction of the ground contact surface 3 inside the leg frame 21 due to its own weight. Therefore, the caster 26 of the inner leg 23 also abuts against the ground plane 3. Thereafter, when the user lifts the top plate 锁 to lift the top plate ,, as shown in Fig. 10B, the cam portion 172 also oscillates with the rotation of the top plate 1. That is, the cam portion 172 which can support the pivoting of the shaft 19 is connected to the top plate body u as a part of the top arm 17. Therefore, the cam portion 摆动2 is swung with the rotation of the top plate body u. As a result, as the arrow 〇 does not, the abutting portion 175 of the cam portion 172 abuts against the supporting surface 239 of the inner end block 231. Further, in FIG. 3A, the distance from the support shaft 19 of the top plate 1 to the abutment portion 175 of the cam portion 172 is indicated by an arrow g. The distance from the support shaft 19 of the top plate j to the opposite portion 176 of the cam portion 172 is indicated by the arrow "the distance indicated by the arrow g, which is shorter than the distance indicated by the arrow h. That is, the self-supporting shaft 19 The distance from the abutting portion 175 is longer than the distance from the support shaft 19 to the opposite portion 176. Therefore, as the top plate 1 is rotated, the abutting portion 175 moves up to the support surface 239 and supports upwardly. In other words, the abutting portion climbs up the support surface 239 and moves away from the ground plane 3. Thereby, the abutting portion 175 abuts the front end closer to the inner position 231, and as a result, with the rotation The distance between the movable top plate 1' from the support shaft 19 to the grounding surface 3 will become longer. Also 17 201200071 means that the support shaft 19 moves away from the ground plane 3 = the shaft 19 is connected to the top plate through the support portion of the top plate arm 17 Ben =, = through frame 219 to connect the frame body of the table leg frame 21 away from the ground plane 3, then the top plate of the second plate Si moves away from the ground plane 3, and when the table leg = 1 far_ground 3, pure (4) Support of the convex body 23. Also illusion Figure _ shows that the top plate 1 掀 to a certain extent, and the top W is received inside The state supported by the body 23. In this state, as shown by the arrow W, the adjusting member 25 and the base cover 24 float from the ground plane 3, and if passed through the caster 26 abutting the grounding surface 3, the inner leg body 23 is supported. Further rotating the top plate to move the top plate to the folding position shown in FIG. 1c, the position at which the abutting portion 175 abuts the supporting surface 239 is moved to a position more than the supporting surface 239 as indicated by an arrow e. Therefore, the support shaft (4) moves further away from the ground plane 3, and the top plate body and the table frame Μ also move further away from the ground plane 3. As a result, the top plate i is rotated to the retracted position. When the gap between the grounding surface 3 and the adjusting member 25 and the base cover 24 is the widest as shown by the arrow f, the above description is directed to the embodiment of the present invention, but the present invention is not limited by the configuration of the embodiment. The configuration of the above embodiment can be appropriately changed within the scope of not substantially changing the scope of the present invention. For example, the through frame 219 of the above embodiment is screwed to the inner side surface of the leg frame 21, that is, near the side of the top plate 1. Side. However, it can also be used with table legs. The frame 21 is integrally formed with the through frame 219. At this time, a part of the leg frame 21 can be extended, and the through frame 219 is formed by the extending portion by 18 201200071. In addition, the top plate arm 17 of the above embodiment, The support portion i7i and the cam ^ 172 are formed separately. However, the support portion m and the cam portion (7) may be formed separately. At this time, the support portion (7) and the cam portion 172 are respectively screwed to the top plate body 11. In the embodiment, the leg body 23 is prevented from coming off by the guide cover 27. However, a long hole may be formed in the (10) body 23 so that the screw inserted into the screw hole of the through frame 219 is also inserted into the long hole to prevent this. Fall off. At this time, even if the leg body 23 is biased in the table leg frame 21 0, the movement of the inner leg body 23 can be restricted because the screw abuts against the periphery of the long hole. Further, the support surface 239 of the inner end block 231 in the present invention may have a shape in which the height from the caster 26 can be increased. Therefore, the shape of the support surface 239 is not limited to the inclined plane, and may be a curved shape or a stepped shape having a slight height difference. Further, the inner end block 231 may not be provided, and the support surface 239 may be formed directly at the front end of the inner leg body 23. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the upper and the back of a folding table; Fig. 2 is a side view of the folding table in use and at the time of folding; Fig. 3 is a schematic side view of the top plate; Figure 19 is a schematic side view of the table legs; Figure 6 is a partially enlarged cross-sectional view of the folding table in use; Figure 7 is a first table foot Figure 8 is a view of the guide cover; Figure 9 is a view of the second table; and Figure 10 is a view of the action of the folding table. 20 201200071 [Description of main component symbols] 1... Top plate 18... Connecting rod 11... Top plate body 19... Supporting shaft 12... Front bezel 2... Table leg 13... Top plate frame 21·. Table leg frame 14... Locking bar 212... Frame body 141···locking plate 213... bottom frame portion 142... hole 214... hole 143···spring receiving portion 215...inner plate 144...locking spring 216·.·first screw hole 145··. Side fixing member 217...second screw hole 146...inner fixing member 21 8...third screw hole 147...groove 219...through frame 148···stop member 22...through material 149··· child L 226·· First screw hole 1 5...shaft 227..·second screw hole 17...top plate arm 228."third screw hole 171··. support portion 23... inner leg body 172..·cam portion 231... End block 173..·center portion 232...base portion 174···stop member 233...inner leg body 175···contact portion 234...inner guide 176···opposing portion 235...locking projection 177 ··· hole 2 3 6...locking hole 21 201200071 237...protrusion 282...head 238···step section 3...grounding surface 239···support surface 40...locking projection 24...base cover 41· ··The first locking groove 24 · Step portion 42 · · · Second locking groove 25 ... Adjusting member 50 ... Arrow 26 ... Caster 5 1 ... Arrow 27 ... Guide cover 52 ... Arrow 271 ... Guide portion a ... Arrow 276 ... First screw hole b ...arrow 277···screw c...arrow 278...second recess d...arrow 279...first recess e...arrow 2 8...hanging f...arrow 280...bevel g · · ·arrow 281···third recess h ...arrow 22