201134439 六、發明說明： 【發明所屬之技術領域】 本發明係關於將例如家具、系統家具之抽屜 構件對櫃子等的固定構件進行支承之導引單元， 前述可動構件自二方向對固定構件可收納之雙向 【先前技術】 在日本特開2006-43189，揭示有自櫃子之正 面側皆可利用抽屜的雙向抽屜構造。這樣的抽屜 用於與壁分離而設置於室內之櫃子，能夠從櫃子 、背面側雙方利用同一個抽屜者。例如，即使作 櫃子的正面側或背面側的任一側位置，除了能夠 出抽屜內的收納物，另外對在隔著櫃子，二人之 行相同作業之情況等，成爲便利的構造。 另外，在日本特許第3933684號，揭示有導 櫃子的進退之滑軌單元。在此滑軌單元，設有輔 櫃子的收納，且解決抽屜對櫃子的半開狀態之彈 此彈推手段係構成爲當抽屜被壓入到對櫃子的收 附近時，與該抽屜卡合，使用彈性構件的彈推力 抽屜積極地拉入到收納靜止位置爲止。又，前述 係當打開了抽屜時，設定成伸展狀態，當將抽屜 子時，與該抽屜卡合而解除前述伸展狀態，藉由 性力，將抽屜拉入到收納靜止位置。 等的可動 特別是將 導引單元 面側、背 構造係適 的正面側 業者位在 迅速地取 作業者進 引抽屜對 助抽屜對 推手段。 納位置的 ，將前述 彈性構件 壓入到櫃 本身的彈 201134439 專利文獻1 :日本特開2 0 0 6 - 4 3 1 8 9 專利文獻2:日本專利第3 93 3 6 84號 【發明內容】 [發明所欲解決之課題] 但’日本專利第393 3684號所揭示的滑軌單元，係僅 設想例如將抽屜自櫃子的正面側拉出的情況來構成者，無 法將將此專利文獻之前述彈推手段適用到日本特開2006-43 1 89所揭示之雙向抽屜構造。即，因前述彈推手段係當 抽屜被壓入到櫃子內的收納靜止位置的附近時，與該抽屜 卡合，利用處於伸展狀態之彈性構件彈性力，將抽屜拉至 收納位置，所以，在抽屜已被收納於收納靜止位置的狀態 ’前述彈推手段是處於與抽屜卡合的狀態，不易從該櫃子 的背面側，將自櫃子的正面側所收納的抽屜予以拉出。 [以解決課題之手段] 本發明係有鑑於這種的問題而開發完成之發明，其目 的係在於提供係能夠將可動構件自對固定構件呈相反之二 方向拉出，並且即使在從任一的方向將可動構件返回到收 納位置之情況，也能夠將該抽屜拉入到收納位置之雙向導 引單元。 即，本發明的雙向導引單元係具備有：固定構件；收 納於此固定構件，且可自收納靜止位置朝第一方向及與該 第一方向相反之第二方向中的任一方向可自由拉出的可動 -6- 201134439 構件；以及在該收納靜止位置的附近，與自前述第一方 返回到前述收納靜止位置之可動構件卡合，朝前述收納 止位置將可動構件予以彈推，又，當前述可動構件通過 納靜止位置而朝第二方向移動時，解除與該可動構件的 合狀態之第一拉入手段。 [發明效果] 在如此所構成之本發明的雙向導引單元，當前述第 拉入構件與自前述第一方向返回到收納靜止位置的可動 件卡合，將該可動構件朝收納靜止位置彈推，又，當前 可動構件通過收納靜止位置而朝第二方向移動時，解除 述第一拉入手段與可動構件之卡合狀態。因此，在將前 可動構件自第一方向設定成收納靜止位置後，可使該可 構件立即朝第二方向移動。 又，藉由將與前述第一拉入手段相同結構也針對前 弟一方向設置，可自第一方向及第—·方向之雙方向，確 地進行朝向收納靜止位置之移動構件的收納，並且亦可 過收納靜止位置，讓移動構件朝相反側的第二方向或第 方向移動。 【實施方式】 以下，使用圖面詳細地說明本發明的雙向導引單元 圖1及圖2係顯示適用本發明的雙向導引單元的實施 態的〜例者。此雙向導引單元1具備有：作爲固定構件 向 靜 收 卡 構 述 刖 述 動 述 實 超 形 之 201134439 底板2;作爲移動構件之桌板3;及對前述底板2，將桌板3 可自由移動地予以支承的一對滑動構件5。各滑動構件5係 以被夾持於底板2的寬度方向（圖2的紙面左右方向）的端 部與桌板3的寬度方向的端部的方式固定著，桌板3係在與 底板2之間，保持一定的隙間，而可在該上面自由地移動 。這樣的雙向導引單元係例如，將前述底板2固定於家具 本體、將前述桌板3固定於抽屜來加以使用。 圖1係顯示前述桌板3被設定成收納靜止位置的狀態， 即桌板3與底板2完全地重疊的狀態，桌板3係可自此狀態 朝圖1所示的箭號A方向或B方向的其中任一方拉出。因此 ，若利用此雙向導引單元1，能夠將抽屜朝家具本體的正 面側及背面側的其中任一方向拉出。再者，前述A方向及B 方向係分別與本發明的第一方向及第二方向對應。 又，在前述底板2與桌板3之間，設有當將前述桌板3 設定於收納靜止位置時，用來輔助該桌板3的收納之複數 個拉入構件6。這些拉入構件6係由當將已朝A方向被拉出 的桌板3返回至收納靜止位置時來發揮功能的第一拉入構 件6a、和當將已朝B方向被拉出的桌板3返回至收納靜止位 置時來發揮功能的第二拉入構件6b所構成。在此實施形態 ，前述第一拉入構件6a、第二拉入構件6b分別各設有2個 。關於這些拉入構件6的詳細內容如後述。 圖3係顯示對前述底板2支承桌板3的移動之滑動構件5 的斜視圖。此滑動構件5係由固定於前述底板2之外軌5 0 ' 固定於前述桌板3的內軌51、及對這些外軌50及內軌51經 201134439 由多數個滾珠加以組裝的中間軌5 2所構成。前述外軌5 0 ' 內軌5 1及中間軌5 2係形成爲略相同的長度。前述中間軌5 2 係構成爲與外軌50完全地重疊之位置會與前述桌板3的收 納靜止位置相對應，亦可自該位置對外軌5 0朝Α方向及Β方 向的其中任一方向自由地移動。又’內軌51係構成爲與中 間軌5 2完全地重疊之位置會與前述桌板3的收納靜止位置 相對應，亦可自該位置對外軌50朝Α方向及Β方向的其中任 一方向自由地移動。 圖4係自前述中間軌5 2取下前述內軌5 1，明確地顯示 前述滑動構件5的內部構造之圖。前述外軌50係爲藉由對 鋼板進行滾壓成形加工來精密成形者，藉由沿著安裝部5 3 的長方向使一對滾珠滾動行進部54彎起，形成爲通道狀。 內軌51也形成爲與外軌50相同形狀，但，這些外軌50與內 軌5 1係在使通道溝相互對齊的狀態下配置著，在外軌50與 內軌5 1相對所形成之空間，配置前述中間軌52。 前述中間軌5 2係由與外軌同樣地自鋼板所成形的一對 軌道體所構成，將這些軌道體以背面相對的方式予以熔接 形成的。各軌道體係藉由沿著安裝部55的長方向使一對滾 珠滾動行進部5 6彎起而形成爲通道狀。在中間軌5 2的滾珠 滾動行進部5 6的外側面與內軌5 1的滾珠滾動行進部5 4的內 側面之間排列有多數個滾珠5 7，藉由這些滾珠5 7在滾珠滾 動行進部5 4 ’ 5 6滾動行進’使得內軌5 1對中間軌5 2可自由 地移動。又’在外軌5 0與中間軌5 2之間也同樣地排列有多 數個滾珠，藉由這些滾珠的滚動行進，使得中間軌5 2對外 -9- 201134439 軌5 0可自由地移動。再者，爲了防止相互地鄰接的滾珠彼 此接觸、且將滾珠57以預定之間隔排列成一列，而將在相 同的滾動行進部54，56進行滾動行進之滾珠57排列於合成 樹脂製之滾珠籠57a。 由於如此經由中間軌52將外軌50與內軌51可相互地自 由移動地加以組合，故，在此滑動構件5，可將內軌5 1對 外軌50拉出至與該外軌50梢許重疊的程度，在使用這樣的 滑動構件5之此實施形態的雙向導引單元1，能夠將桌板3 自底板2大幅地拉出。 當將桌板3自底板2拉出時，爲了防止中間軌52對外軌 5 0不會移動而僅內軌51移動之情況產生，在前述滑動構件 5，設有使中間軌52對外軌50的移動量和內軌51對中間軌 52的移動量同步之機構。此機構係由對外軌50及內軌51， 沿著其長方向所設置之架齒輪58、和可對前述中間軌52自 由旋轉地被支承並與前述架齒輪58相嚙合之小齒輪59所構 成。在圖4中，雖顯示安裝於內軌51之架齒輪58及自上方 與該架齒輪嚙合之小齒輪59，但在外軌50與中間軌52之間 亦配置有相同的架齒輪與小齒輪。但，固定於外軌50之架 齒輪係將其齒列朝下側配置，小齒輪係自下側對該架齒輪 進行嚙合。又，內軌5 1側的小齒輪59與外軌50側的小齒輪 係共通有旋轉軸，構成爲當圖示的小齒輪59旋轉時，面對 中間軌5 2的裏側，即面對外軌5 0所存在的小齒輪也朝相同 方向旋轉。 因此，當使桌板3對底板2移動時，內軌5 1對中間軌5 2 -10- 201134439 移動桌板3的移動距離之一半的距離，又，中間軌5 2對外 軌5 0移動桌板3的移動距離之一半的距離，經常可使內軌 51與中間軌52連動而移動。 再者，若可將桌板3對底板2朝A方向及B方向拉出，則 可因應雙向導引單元1的用途等，作爲前述滑動構件5，可 任意地適用習知的結構。 在此雙向導引單元1，爲了將前述桌板3對底板2確實 地收納、且保持該狀態（圖1所示的狀態），設有用來輔 助桌板3對前述底板2的拉入之拉入構件6。此拉入構件6係 當將桌板3拉入至底板2上的收納靜止位置時，作用於該收 納靜止位置的稍微正前側，使用作爲彈性構件之拉引彈簧 的彈推力，將桌板3拉入到收納靜止位置》 圖5及圖6係顯示將前述桌板3自圖1所示的收納靜止位 置朝A方向拉出的狀態之平面圖及底面圖。前述拉入構件6 係由銷誘導構件60及凸輪構件6 1所構成，如圖5所示，在 底板2的上面固定有前述銷誘導構件60，如圖6所示’在桌 板3的底面固定有前述凸輪構件61。前述銷誘導構件60及 凸輪構件6 1係以在將底板2與桌板3重疊的狀態下相互面對 的方式配設有4組，但，位於兩端之2組的銷誘導構件60及 凸輪構件6 1係爲將桌板3自A方向回復到底板2上的收納靜 止位置之第一拉入構件6 a者’而位於中央之2組的銷誘導 構件60及凸輪構件6 1係爲將桌板3自B方向回復到底板2上 的收納靜止位置之第二拉入構件6b者。 再者，在此實施形態，雖然將前述銷誘導構件60固定 -11 - 201134439 於底板2，將前述凸輪構件61固定於桌板3，但，亦可與此 結構相反，將前述凸輪構件6 1固定於底板2，而將前述銷 誘導構件60固定於桌板3。 又，如圖6所示，在桌板3的中央，沿著該桌板3的移 動方向設有架齒輪30，另外，如圖5所示，在前述底板2的 中央，設有與桌板3的架齒輪3 0嚙合之小齒輪20。此小齒 輪20係與配置在底板2的裏面側之旋轉阻尼器連結。因此 ，桌板3的急遽之運動會被前述旋轉阻尼器所衰減，在桌 板3的移動中之架齒輪30與小齒輪20相互嚙合的區域，該 桌板3平緩地移動。 如圖7所示，固定於前述底板2之銷誘導構件60、及固 定於桌板3之凸輪構件61係在相互面對之狀態使用。在桌 板3自底板2被拉出的狀態，銷誘導構件60與凸輪構件61不 會重疊地相互分離，但，當桌板3接近收納靜止位置時， 凸輪構件61係自圖中所示的箭號C方向逐漸重疊到銷誘導 構件60。又，當凸輪構件61與銷誘導構件60重疊了 一定距 離時，凸輪構件61會與從銷誘導構件60突出的保持銷62卡 合，內裝於銷誘導構件之彈性構件的拉引力（彈推力）經 由保持銷62傳達到凸輪構件61，能夠將固定有凸輪構件61 之桌板3藉由前述彈推力，對底板2的收納靜止位置予以拉 入。 前述銷誘導構件60係具有與前述凸輪構件61卡合之保 持銷62，並且該保持銷62係被保持於形成爲矩形狀之外罩 63。前述外罩63的內部係成爲保持銷62的移動空間。又’ -12- 201134439 在前述外罩63的正面板64，形成有用來限制前述保持銷62 的移動之誘導溝65，保持銷62之前端插入到誘導溝65，而 朝凸輪構件6 1突出。 在前述保持銷62，固定著作爲彈性構件之拉引彈簧66 的一端，此拉引彈簧66的另一端係固定於設置在前述銷誘 導構件60的外罩63內之短釘67。此短釘67係較前述誘導溝 65更位於靠近前述桌板之拉入方向的深部側。無論保持銷 62被設定於誘導溝65的任何位置，前述拉引彈簧66皆處於 伸長的狀態，構成爲拉引彈簧66的彈推力始終朝桌板3的 拉入方向作用於保持銷62。 另外，前述誘導溝65具有：用來抗衡拉引彈簧66的彈 推力，將保持銷62予以卡止之卡止凹部68 ;和從該卡止凹 部68連續，並且沿著前述桌板3的移動方向所形成之拉引 導引部69。前述卡止凹部68係爲當將桌板3自底板2拉出時 設定前述保持銷62之待機位置，當保持銷62被設定於卡止 凹部6 8時，前述拉引彈簧6 6處於最伸長之狀態。因此，當 藉由前述凸輪構件6 1的作動，使得保持銷62自作爲待機位 置之卡止凹部68脫離時，該保持銷62藉由拉引彈簧66的彈 推力一次移動前述拉引導引部69，而到達拉引導引部69之 終端。 又，在與前述短釘6 7接近之拉引導引部6 9的端部，形 成有當不受前述凸輪構件61的移動影響’而將自待機位置 (卡止凹部68 )脫離後的保持銷62再次設定於該待機位置 時加以利用之退避凹部7〇。此退避凹部70係以與拉引導引 -13- 201134439 部69斜向交叉的方向形成。 其次，說明關於設置於桌板3側之前述凸輪構件6 1。 此凸輪構件61係藉由在合成樹脂製之板材切削出導引溝71 來形成的。圖8係顯示形成於前述凸輪構件61的導引溝71 的形狀之斜視圖。前述導引溝7 1係作爲因應桌板3對底板2 的移動來變更前述保持銷62的設定位置之所謂凸輪溝來構 成，自前述銷誘導構件60突出的保持銷62的前端插入於前 述凸輪構件61的導引溝71。此導引溝71係具備有：用來承 接設定於待機位置的保持銷62的前端之導入部72;使被承 接的保持銷62自前述待機位置脫離的作用部73 ;及預先將 通過了此作用部73的保持銷62予以卡止之銷留置部74。此 銷留置部74係與銷誘導構件60的拉引導引部69相對向，保 持銷62係在卡止於銷留置部74之狀態下，可在前述拉引導 引部69上移動。 又，在此凸輪構件61，設有用來將卡止於前述銷留置 部74之保持銷62自導引溝71脫離之銷脫離溝75。 此銷脫離溝75係在與前述導入部72相反側，朝凸輪構 件6 1的側面開放，並且與前述銷留置部74連續形成，在藉 由前述拉入構件6的機能隔著間隔被拉入至底板2上的收納 靜止位置之桌板3超過該收納靜止位置而移動之情況，使 前述保持銷62自凸輪構件61的導引溝71脫離，解除保持銷 62與凸輪構件61之卡合狀態。 圖9(a)〜（e)係因應桌板3對底板2的移動位置的 變化，說明前述拉入構件6的作用之圖，顯示前述凸輪構 -14- 201134439 件61與保持銷62的位置關係，其中，圖9 ( a)係顯示將桌 板3自底板2朝圖6所示的箭號線A方向拉出之狀態。 此圖9所示的凸輪構件6 1係將朝箭號線A方向拉出的桌 板3返回至收納靜止位置時發揮機能之第一拉入構件6 a的 凸輪構件。如圖9 ( a )所示，在將桌板3自底板2拉出之狀 態，前述凸輪構件6 1係如圖6所示’不會與固定在底板2之 銷誘導構件60重疊，此時的保持銷62的設定位置係爲銷誘 導構件60的誘導溝65之卡止凹部68。在此狀態’拉引彈簧 66是處於伸展狀態。 其次，當將自底板2拉出的桌板3朝收納靜止位置推回 時，凸輪構件61會朝與前述A方向相反的方向之箭號線B方 向移動，該凸輪構件61與銷誘導構件60逐漸重疊。藉此， 如圖9 ( b )所示，自銷誘導構件60突出的保持銷62的前端 會進入至凸輪構件61的導引溝71。從導入部72進入到導引 溝7 1內之保持銷62會伴隨凸輪構件6 1朝C方向行進而與作 用部73接觸，而朝與凸輪構件61的移動方向正交的方向被 按壓，最後，會如圖9 ( c )所示，被設定於銷留置部74。 當以此方式，使得保持銷62藉由與凸輪構件6 1的作用 部73之接觸而被設定於銷留置部74時，在前述銷誘導構件 60，保持銷62會成爲自卡止凹部68被設定至拉引導引部69 ，拉引彈簧66的彈推力一口氣被解放，使得保持銷62沿著 拉引導引部69移動。此時，前述保持銷62被設定於凸輪構 件61的銷留置部74，由於針對前述拉引彈簧66的彈推方向 ，保持銷62與凸輪構件61卡合，故，前述拉引彈簧66的彈 -15- 201134439 推力作用於凸輪構件61及固定有此凸輪構件的桌板3’ ί吏 得桌板3朝底板2上的收納靜止位置拉回。圖9(d)係顯示 桌板被設定於收納靜止位置之情況時的凸輪構件與保持銷 之位置關係。 再者，當將設定於收納靜止位置之桌板3再次朝箭號 線Α方向拉出時，保持銷62會一邊抗衡拉引彈簧66的彈推 力，一邊從圖9(d)朝圖9(a)相反地移動，而被再設定於 銷誘導構件60的卡止凹溝68。藉此，即使將桌板3自收納 靜止位置朝箭號線A方向反復拉出，當將桌板3返回至收納 靜止位置時，也始終可以利用拉引彈簧66的彈推力。 由這樣的銷誘導構件60及凸輪構件61所構成的拉入構 件6係除了對應桌板3朝箭號線A方向的移動之第一拉入構 件6a外，亦如圖5及圖6所示，配置有對應桌板3朝箭號線B 方向的移動之第二拉入構件6b。因此，在將已朝箭號線B 方向拉出的桌板3向箭號線A方向移動而返回到收納靜止位 置之情況，構成第二拉入構件6b之銷誘導構件60及凸輪構 件6 1亦可與圖9所示的例子同樣地發揮機能，將桌板3拉回 至收納靜止位置。 另外，在此雙向導引單元，亦可在將自底板2朝圖5的 箭號線A方向拉出的桌板3如前述的方式拉回至收納靜止位 置後，將桌板3直接朝圖5的箭號線B方向拉出。在此情況 ，當將朝箭號線A方向移動的桌板3拉回至收納靜止位置時 產生作用之保持銷62係如圖9(d)所示，伴隨桌板3及凸 輪構件61朝前述B方向之移動，通過銷脫離溝75而自凸輪 -16- 201134439 構件61脫離。即，當桌板3通過收納靜止位置時’前述保 持銷6 2與凸輪構件6 1的卡合狀態被解除。 圖1 0 ( a ) 、（ b )係顯示將設定於收納靜止位置S之 桌板3朝B方向拉出的情況時之凸輪構件6 1與保持銷6 2之位 置關係的圖。如圖1 〇 ( a )所示，在桌板設定於收納靜止 位置S之狀態，在第一拉入構件6 a ’銷誘導構件6 0的保持 銷62被設定於凸輪構件61的銷留置部74 ’又’在第二拉入 構件6b，銷誘導構件60的保持銷62也被設定於凸輪構件61 的銷留置部74。因此，對桌板3’組裝於拉入構件6a之拉 引彈簧66的彈推力會朝B方向作用，而組裝於拉入構件6b 之拉引彈簧66的彈推力會朝A方向作用，因此，桌板3會伴 隨某種程度之保持力而設定於收納靜止位置S。 當由此狀態將桌板3朝B方向移動時，如圖1 0 ( b )所 示，在第一拉入構件68，保持銷62會通過銷脫離溝75而自 凸輪構件6 1的導引溝7 1脫離，解除凸輪構件6 1與保持銷62 的卡合狀態，使得桌板3可朝B方向移動。此時，在第二拉 入構件6b，在保持銷62與凸輪構件6 1卡合之狀態下朝B方 向移動，而在銷誘導構件60，拉引彈簧66成爲伸展狀態。 又，當將朝B方向已被拉出的桌板3再次朝收納靜止位 置S拉回時，第一拉入構件6a的保持銷62會通過銷脫離溝 75而被導入到凸輪構件61的導引溝71內，再次在銷留置部 74’與凸輪構件61卡合。藉此，凸輪構件61與保持銷62的 位置關係回復成圖1 0 ( a )的狀態。 如以上所說明，在此實施形態之雙向導引單元1，可 -17- 201134439 使桌板3朝對收納靜止位置呈相反的A方向及B方向中任一 方向自由地移動。又，當將桌板3朝收納靜止位置進行收 納時，即使在從A方向及B方向的其中任一方向進行收納之 情況，也能使拉入構件6對桌板3進行卡合，伴隨彈推力， 可將該桌板3確實地設定於收納靜止位置。 又，在將桌板3自收納靜止位置朝A方向移動之情況， 解除第二拉入構件6b與桌板3之卡合狀態，使得桌板3可朝 A方向移動，另外在將桌板3自收納靜止位置朝B方向移動 之情況，第一拉入構件6a與桌板3之卡合狀態被解除，使 得桌板3可朝B方向移動。 因此，若依據這樣的雙向導引單元，能夠將將家具與 壁面分離設置時，能夠自該家具之正面側及背面側雙方來 利用抽屜，並且，伴隨彈推力之輔助，能夠確實地進行該 抽屜之關閉動作。 再者，在前述的實施形態，將桌板對底板，以一對滑 動構件予以支承，而在底板與桌板之間配置有第一拉入構 件及第二拉入構件，但，這些拉入構件配置場所不限於此 例。例如，亦可藉由對滑動構件外軌和與其相對向的內軌 ’直接地固定前述銷誘導構件及凸輪構件，或經由安裝板 ’對外軌和與其相對向的內軌，間接地固定前述銷誘導構 件及凸輪構件，滑動構件其構成本發明的雙向導引單元。 【圖式簡單說明】 圖1係顯示本發明的雙向導引單元的實施形態的一例 -18- 201134439 之斜視圖。 圖2係圖1所示的雙向導引單元的正面圖。 圖3係顯示使用於實施形態之雙向導引單元的滑動構 件之斜視圖。 圖4係顯示圖3所示的滑動構件內部構造之分解斜視圖 〇 圖5係顯示將桌板自底板朝A方向拉出的狀態之平面圖 〇 圖6係顯示將桌板自底板朝A方向拉出的狀態之底面圖 〇 圖7係顯示使用於實施形態之雙向導引單元的拉入構 件之斜視圖。 圖8係顯示構成圖7所示的拉入構件之凸輪構件的斜視 圖。 圖9係顯示將桌板返回至收納靜止位置時的凸輪構件 與保持銷的位置關係之說明圖。 圖1 〇係顯示將桌板從收納靜止位置移動時的凸輪構件 與保持銷之位置關係的說明圖。 【主要元件符號說明】 1 :雙向導引單元 2 :底板 3 :桌板 5 =滑動構件 -19- 201134439 6 :拉入構件 6a :第一拉入構件 6b :第二拉入構件 5 0 :外軌 51 :內軌 5 2 :中間軌 5 3 :安裝部 54 :滾珠滾動行進部 55 :安裝部 5 6 :滾珠滾動行進部 57 :滾珠 5 7 a :滾珠籠 58 :架齒輪 5 9 :小齒輪 60 :銷誘導構件 6 1 :凸輪構件 62 :保持銷 63 :外罩 64 :正面板 65 :誘導溝 66 :拉引彈簧 67 :短釘 68 :卡止凹部 69 :拉引導引部 -20 201134439 71 :導引溝 72 :導入部 73 :作用部 74 :銷留置部 7 5 :銷脫離溝 S :收納靜止位置 -21 -BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide unit that supports a fixing member such as a furniture, a system furniture drawer member, or the like, and the movable member can be housed in a fixed direction from two directions. Two-way [Prior Art] In Japanese Laid-Open Patent Publication No. 2006-43189, a two-way drawer structure in which drawers are available from the front side of the cabinet is disclosed. Such a drawer is used for a cabinet that is separated from the wall and installed in the room, and can use the same drawer from both the cabinet and the back side. For example, even if the position on either the front side or the back side of the cabinet is the same as that of the storage in the drawer, it is convenient to perform the same operation in the case of the two persons in the cabinet. Further, in Japanese Patent No. 3933684, there is disclosed a slide rail unit that guides the advance and retreat of the cabinet. In this sliding rail unit, there is a storage of the auxiliary cabinet, and the elastic means for solving the half-open state of the drawer to the cabinet is configured to be engaged with the drawer when the drawer is pressed into the vicinity of the cabinet, and is used. The elastic thrust drawer of the elastic member is actively pulled into the storage rest position. Further, when the drawer is opened, the drawer is set to the extended state, and when the drawer is opened, the drawer is engaged with the drawer to release the extended state, and the drawer is pulled into the storage rest position by the force. In particular, the front side of the guiding unit side and the back structure are positioned to quickly take the operator's drawer guide to the drawer. In the case of the nano-position, the elastic member is pressed into the cabinet itself. 201134439 Patent Document 1: Japanese Patent Laid-Open No. 2 0 0 6 - 4 3 1 8 9 Patent Document 2: Japanese Patent No. 3 93 3 6 84 [Invention] [Problems to be Solved by the Invention] However, the slide rail unit disclosed in Japanese Patent No. 393 3684 is only intended to be constructed such that the drawer is pulled out from the front side of the cabinet, and the aforementioned patent document cannot be used. The bomb pushing means is applied to the two-way drawer structure disclosed in Japanese Laid-Open Patent Publication No. 2006-43 1 89. In other words, when the drawer is pressed into the vicinity of the storage rest position in the cabinet, the above-described elastic pushing means engages with the drawer, and the elastic member elastic force in the extended state pulls the drawer to the storage position. The drawer is stored in a state of being stored in a rest position. The above-described elastic pushing means is in a state of being engaged with the drawer, and it is difficult to pull out the drawer accommodated from the front side of the cabinet from the back side of the cabinet. [Means for Solving the Problems] The present invention has been made in view of such problems, and an object thereof is to provide a movable member that can be pulled out from the opposite fixing member in the opposite direction, and even in any The direction of returning the movable member to the storage position can also pull the drawer into the two-way guide unit at the storage position. That is, the bidirectional guiding unit of the present invention includes: a fixing member; and is accommodated in the fixing member, and is freely movable from the storage rest position to either the first direction and the second direction opposite to the first direction. a movable movable member -6-201134439; and a movable member that returns from the first side to the storage rest position in the vicinity of the storage rest position, and pushes the movable member toward the storage stop position, and When the movable member moves in the second direction by the neutral position, the first pulling means for closing the movable member is released. According to the bidirectional guide unit of the present invention, the first pull-in member is engaged with the movable member that has returned from the first direction to the storage rest position, and the movable member is pushed toward the storage rest position. Further, when the current movable member moves in the second direction by accommodating the rest position, the engagement state between the first pulling means and the movable member is released. Therefore, after the front movable member is set to the storage rest position from the first direction, the movable member can be immediately moved in the second direction. Further, by providing the same configuration as the first pull-in means in the direction of the front-rear direction, it is possible to reliably store the moving member toward the storage rest position from the first direction and the two directions of the first direction. The storage position may also be accommodated to move the moving member in the second direction or the first direction on the opposite side. [Embodiment] Hereinafter, a bidirectional guiding unit of the present invention will be described in detail with reference to the drawings. Figs. 1 and 2 show an embodiment of a bidirectional guiding unit to which the present invention is applied. The bidirectional guiding unit 1 is provided with: a 201134439 bottom plate 2 as a moving member, and a table 3 as a moving member; and a table 3 for the bottom plate 2 A pair of sliding members 5 movably supported. Each of the sliding members 5 is fixed so as to be sandwiched between the end portion of the bottom plate 2 in the width direction (the horizontal direction of the paper surface in FIG. 2) and the end portion in the width direction of the table 3. The table 3 is attached to the bottom plate 2 Between, a certain gap is maintained, and it can move freely on the upper side. Such a bidirectional guiding unit is used, for example, by fixing the bottom plate 2 to a furniture body and fixing the table top 3 to a drawer. Fig. 1 shows a state in which the table top 3 is set to accommodate a rest position, that is, a state in which the table top 3 and the bottom plate 2 are completely overlapped, and the table 3 can be oriented from the state to the arrow A direction shown in Fig. 1 or B. Pull out any of the directions. Therefore, with this bidirectional guide unit 1, the drawer can be pulled out in either of the front side and the back side of the furniture body. Furthermore, the A direction and the B direction correspond to the first direction and the second direction of the present invention, respectively. Further, between the bottom plate 2 and the table 3, a plurality of pull-in members 6 for assisting the storage of the table 3 when the table 3 is set to the storage rest position are provided. These pull-in members 6 are a first pull-in member 6a that functions when returning the table 3 that has been pulled out in the A direction to the storage rest position, and a table that is pulled out in the B direction. 3 is returned to the second pull-in member 6b that functions when the stationary position is stored. In this embodiment, two of the first pull-in member 6a and the second pull-in member 6b are provided. Details of these pull-in members 6 will be described later. Fig. 3 is a perspective view showing the sliding member 5 which supports the movement of the table 2 by the aforementioned bottom plate 2. The sliding member 5 is an inner rail 51 fixed to the table top 3 by a rail 50' fixed to the outer bottom plate 2, and an intermediate rail 5 assembled by a plurality of balls to the outer rail 50 and the inner rail 51 via 201134439. 2 constitutes. The outer rail 50' inner rail 51 and the intermediate rail 52 are formed to have the same length. The intermediate rail 52 is configured such that the position completely overlapping the outer rail 50 corresponds to the storage rest position of the table 3, and the outer rail 50 may be in any direction from the outer rail 50 to the x-direction and the x-direction. Move freely. Further, the position of the inner rail 51 that is completely overlapped with the intermediate rail 52 may correspond to the storage rest position of the table top 3, and the outer rail 50 may be oriented in any one of the Α direction and the Β direction from the position. Move freely. Fig. 4 is a view showing the internal structure of the sliding member 5 clearly shown by removing the inner rail 51 from the intermediate rail 52. The outer rail 50 is formed by performing a roll forming process on a steel sheet, and is formed in a channel shape by bending a pair of ball rolling traveling portions 54 along the longitudinal direction of the mounting portion 53. The inner rail 51 is also formed in the same shape as the outer rail 50. However, the outer rail 50 and the inner rail 51 are disposed in a state in which the passage grooves are aligned with each other, and the space formed by the outer rail 50 and the inner rail 51 is formed. The aforementioned intermediate rail 52 is configured. The intermediate rails 5 2 are formed by a pair of rail bodies formed of a steel sheet in the same manner as the outer rails, and these rail bodies are welded to each other so as to face each other. Each of the rail systems is formed in a channel shape by bending a pair of ball rolling traveling portions 56 in the longitudinal direction of the mounting portion 55. A plurality of balls 57 are arranged between the outer side surface of the ball rolling traveling portion 56 of the intermediate rail 52 and the inner side surface of the ball rolling traveling portion 54 of the inner rail 51, and the balls are rolled by the balls 57. The portion 5 4 ' 5 6 rolls in and out so that the inner rail 51 and the intermediate rail 52 are free to move. Further, a plurality of balls are arranged in the same manner between the outer rail 50 and the intermediate rail 52, and by the rolling of the balls, the intermediate rails 5 2 are freely movable to the outer rails -9-201134439. Further, in order to prevent the mutually adjacent balls from coming into contact with each other and to arrange the balls 57 in a row at predetermined intervals, the balls 57 that roll in the same rolling traveling portions 54, 56 are arranged in a synthetic resin ball cage. 57a. Since the outer rail 50 and the inner rail 51 are freely movable relative to each other via the intermediate rail 52, the sliding member 5 can pull the inner rail 51 out of the outer rail 50 to the outer rail 50. The degree of overlap is such that the table guide 3 can be largely pulled out from the bottom plate 2 by using the bidirectional guide unit 1 of this embodiment of the sliding member 5. When the table 3 is pulled out from the bottom plate 2, in order to prevent the intermediate rail 52 from moving without moving the outer rail 50, only the inner rail 51 is moved. In the sliding member 5, the intermediate rail 52 is provided to the outer rail 50. The mechanism for shifting the amount of movement and the amount of movement of the inner rail 51 to the intermediate rail 52. This mechanism is composed of a foreign rail 50 and an inner rail 51, a frame gear 58 disposed along the longitudinal direction thereof, and a pinion 59 that is rotatably supported by the intermediate rail 52 and meshed with the frame gear 58. . In Fig. 4, the frame gear 58 attached to the inner rail 51 and the pinion 59 meshing with the frame gear from above are shown, but the same frame gear and pinion are also disposed between the outer rail 50 and the intermediate rail 52. However, the frame gear fixed to the outer rail 50 has its tooth row arranged downward, and the pinion gear meshes the frame gear from the lower side. Further, the pinion 59 on the inner rail 51 side and the pinion gear on the outer rail 50 side have a common rotating shaft, and when the illustrated pinion 59 rotates, it faces the inner side of the intermediate rail 52, that is, facing the outside. The pinion gears present in the rail 50 also rotate in the same direction. Therefore, when the table 3 is moved to the bottom plate 2, the distance between the inner rail 5 1 and the middle rail 5 2 -10- 201134439 moves the table 3 by a distance of half, and the intermediate rail 5 2 moves the table to the outer rail 50 One-half the distance of the moving distance of the plate 3 often causes the inner rail 51 to move in conjunction with the intermediate rail 52. In addition, if the table top 3 can be pulled out in the A direction and the B direction with respect to the bottom plate 2, the conventional sliding structure 5 can be arbitrarily applied in accordance with the use of the two-way guide unit 1. In order to securely store the table top 3 on the bottom plate 2 and maintain the state (the state shown in FIG. 1), the two-way guide unit 1 is provided to assist the table board 3 in pulling in the bottom plate 2 Into the member 6. The pull-in member 6 is a slightly front side that acts on the storage rest position when the table top 3 is pulled into the storage rest position on the bottom plate 2, and the table 3 is used using the spring force of the pull-out spring as the elastic member. FIG. 5 and FIG. 6 are a plan view and a bottom view showing a state in which the table top 3 is pulled out from the storage rest position shown in FIG. 1 in the A direction. The pull-in member 6 is composed of a pin inducing member 60 and a cam member 61. As shown in Fig. 5, the pin inducing member 60 is fixed on the upper surface of the bottom plate 2, as shown in Fig. 6 on the bottom surface of the table 3. The aforementioned cam member 61 is fixed. The pin inducing member 60 and the cam member 61 are disposed in such a manner as to face each other in a state in which the bottom plate 2 and the table 3 are overlapped with each other. However, the pin inducing members 60 and cams at two ends are provided. The member 61 is a first pull-in member 6a for returning the table 3 from the A direction to the storage rest position on the bottom plate 2, and the pin-inducing member 60 and the cam member 61 in the center are arranged The table 3 is returned from the B direction to the second pull-in member 6b on the bottom plate 2 that accommodates the rest position. Further, in this embodiment, the pin member 60 is fixed to the bottom plate 2, and the cam member 61 is fixed to the table 3. However, the cam member 6 1 may be reversed from this configuration. It is fixed to the bottom plate 2, and the aforementioned pin inducing member 60 is fixed to the table 3. Further, as shown in FIG. 6, in the center of the table 3, a rack gear 30 is provided along the moving direction of the table 3, and as shown in FIG. 5, a table top is provided in the center of the bottom plate 2. The frame gear 30 of the 3 is meshed with the pinion 20. This pinion 20 is coupled to a rotary damper disposed on the inner side of the bottom plate 2. Therefore, the rapid movement of the table 3 is attenuated by the aforementioned rotary damper, and the table 3 is gently moved in the region where the frame gear 30 and the pinion 20 mesh with each other in the movement of the table 3. As shown in Fig. 7, the pin inducing member 60 fixed to the bottom plate 2 and the cam member 61 fixed to the table 3 are used to face each other. In a state where the table 3 is pulled out from the bottom plate 2, the pin inducing member 60 and the cam member 61 are separated from each other without overlapping, but when the table 3 is brought close to the storage rest position, the cam member 61 is shown in the drawing. The arrow C direction gradually overlaps the pin inducing member 60. Further, when the cam member 61 overlaps the pin inducing member 60 by a certain distance, the cam member 61 engages with the retaining pin 62 protruding from the pin inducing member 60, and the pulling force (elastic thrust) of the elastic member incorporated in the pin inducing member The table member 3 to which the cam member 61 is fixed can be pulled in the storage rest position of the bottom plate 2 by the above-described elastic force by the transfer pin 62 being transmitted to the cam member 61. The pin inducing member 60 has a retaining pin 62 that engages with the cam member 61 described above, and the retaining pin 62 is held in a rectangular outer cover 63. The inside of the outer cover 63 serves as a moving space for the holding pin 62. Further, -12-201134439, an induction groove 65 for restricting the movement of the holding pin 62 is formed in the front plate 64 of the outer cover 63, and the front end of the holding pin 62 is inserted into the induction groove 65 to protrude toward the cam member 61. The holding pin 62 is fixed at one end of a pulling spring 66 which is an elastic member, and the other end of the pulling spring 66 is fixed to a short nail 67 provided in the outer cover 63 of the pin guiding member 60. The short nail 67 is located closer to the deep side of the drawing direction of the table top than the aforementioned induction groove 65. The pull-out spring 66 is in an extended state regardless of the position at which the retaining pin 62 is set at the induction groove 65, and the spring force of the pull-out spring 66 is always applied to the retaining pin 62 toward the drawing direction of the table 3. Further, the aforementioned induction groove 65 has a locking recess 68 for resisting the spring force of the pulling spring 66, and a locking recess 68 for locking the holding pin 62; and a movement from the locking recess 68 and movement along the table 3 The pull guide portion 69 formed by the direction. The locking recess 68 is a standby position for setting the holding pin 62 when the table 3 is pulled out from the bottom plate 2. When the holding pin 62 is set to the locking recess 68, the pulling spring 66 is at the most elongated position. State. Therefore, when the retaining pin 62 is disengaged from the locking recess 68 as the standby position by the actuation of the cam member 61, the retaining pin 62 moves the aforementioned pull guide 69 at a time by the elastic thrust of the pull spring 66. And arrive at the terminal of the pull guide 69. Further, at the end portion of the pull guide portion 69 close to the short nail 67, a retaining pin is formed which is detached from the standby position (the locking recess 68) without being affected by the movement of the cam member 61. The retracting recess 7 is used when the 62 is set again at the standby position. The evacuation recess 70 is formed in a direction obliquely intersecting the pull guide 13-201134439 portion 69. Next, the aforementioned cam member 61 provided on the side of the table 3 will be described. This cam member 61 is formed by cutting a guide groove 71 from a synthetic resin plate. FIG. 8 is a perspective view showing the shape of the guide groove 71 formed in the aforementioned cam member 61. The guide groove 7 1 is configured as a so-called cam groove that changes the set position of the holding pin 62 in response to the movement of the table 3 to the bottom plate 2, and the front end of the holding pin 62 protruding from the pin inducing member 60 is inserted into the cam. Guide groove 71 of member 61. The guide groove 71 is provided with an introduction portion 72 for receiving the distal end of the holding pin 62 set at the standby position, and an action portion 73 for detaching the received holding pin 62 from the standby position; The pin retention portion 74 of the action portion 73 is locked by the holding pin 62. The pin retaining portion 74 is opposed to the pull guide portion 69 of the pin inducing member 60, and the retaining pin 62 is movable on the pull guide portion 69 while being locked to the pin retaining portion 74. Further, the cam member 61 is provided with a pin detaching groove 75 for detaching the holding pin 62 that is locked to the pin rest portion 74 from the guide groove 71. The pin detaching groove 75 is open to the side surface of the cam member 161 on the side opposite to the introduction portion 72, and is formed continuously with the pin rest portion 74, and is pulled in by the function of the pull-in member 6 at intervals. When the table 3 that accommodates the rest position on the bottom plate 2 moves beyond the storage rest position, the holding pin 62 is detached from the guide groove 71 of the cam member 61, and the engagement state of the holding pin 62 and the cam member 61 is released. . 9(a) to 9(e) are diagrams showing the action of the pull-in member 6 in response to a change in the position of the table 3 to the movement of the bottom plate 2, showing the position of the cam member-14-201134439 member 61 and the holding pin 62. In the relationship, Fig. 9(a) shows a state in which the table 3 is pulled out from the bottom plate 2 in the direction of the arrow A shown in Fig. 6. The cam member 61 shown in Fig. 9 returns the table 3 pulled in the direction of the arrow A to the cam member of the first pull-in member 6a that functions as a function of accommodating the rest position. As shown in Fig. 9 (a), in a state where the table 3 is pulled out from the bottom plate 2, the cam member 61 is not overlapped with the pin inducing member 60 fixed to the bottom plate 2 as shown in Fig. 6. The set position of the holding pin 62 is the locking recess 68 of the induction groove 65 of the pin inducing member 60. In this state, the pull-out spring 66 is in an extended state. Next, when the table 3 pulled out from the bottom plate 2 is pushed back toward the storage rest position, the cam member 61 is moved in the direction of the arrow line B in the direction opposite to the aforementioned A direction, and the cam member 61 and the pin inducing member 60 are moved. Gradually overlap. Thereby, as shown in Fig. 9(b), the leading end of the holding pin 62 projecting from the pin inducing member 60 enters the guide groove 71 of the cam member 61. The holding pin 62 that has entered the guide groove 7 1 from the introduction portion 72 is brought into contact with the action portion 73 as the cam member 61 moves in the C direction, and is pressed in a direction orthogonal to the moving direction of the cam member 61, and finally As shown in FIG. 9(c), it is set in the pin placement portion 74. In this manner, when the retaining pin 62 is set to the pin retaining portion 74 by contact with the acting portion 73 of the cam member 61, the retaining pin 62 becomes the self-locking recess 68 at the pin inducing member 60. When the pull guide portion 69 is set, the spring force of the pull spring 66 is released, so that the retaining pin 62 moves along the pull guide portion 69. At this time, the holding pin 62 is set in the pin rest portion 74 of the cam member 61, and the holding pin 62 is engaged with the cam member 61 in the spring pushing direction of the pulling spring 66, so that the pulling spring 66 is elasticized. -15- 201134439 The thrust acts on the cam member 61 and the table 3' to which the cam member is fixed. The table 3 is pulled back toward the storage rest position on the bottom plate 2. Fig. 9 (d) shows the positional relationship between the cam member and the holding pin when the table is set to the rest position. Further, when the table 3 set in the storage rest position is pulled again in the direction of the arrow line, the holding pin 62 will withstand the spring force of the pull spring 66 while moving from FIG. 9(d) to FIG. 9 ( a) moves in the opposite direction and is reset to the locking groove 68 of the pin inducing member 60. Thereby, even if the table 3 is repeatedly pulled out from the storage rest position toward the arrow line A, the spring force of the pull spring 66 can always be utilized when returning the table 3 to the storage rest position. The pull-in member 6 composed of the pin inducing member 60 and the cam member 61 is similar to the first pull-in member 6a corresponding to the movement of the table 3 in the direction of the arrow A, as shown in FIGS. 5 and 6. A second pull-in member 6b corresponding to the movement of the table 3 in the direction of the arrow B is disposed. Therefore, when the table 3 that has been pulled out in the direction of the arrow B is moved in the direction of the arrow A and returned to the storage rest position, the pin inducing member 60 and the cam member 6 1 constituting the second pull-in member 6b are formed. It is also possible to function in the same manner as the example shown in Fig. 9 to pull the table 3 back to the storage rest position. In addition, in the two-way guiding unit, the table 3 which is pulled out from the bottom plate 2 in the direction of the arrow line A of FIG. 5 can be pulled back to the storage rest position as described above, and the table 3 is directly directed to the figure. The arrow line of 5 is pulled out in the B direction. In this case, when the table 3 which is moved in the direction of the arrow A is pulled back to the storage rest position, the holding pin 62 functions as shown in FIG. 9(d), and the table board 3 and the cam member 61 face the foregoing. The movement in the B direction is released from the cam-16-201134439 member 61 by the pin being separated from the groove 75. That is, when the table top 3 is accommodated in the rest position, the engagement state of the holding pin 6 2 and the cam member 61 is released. Fig. 10 (a) and (b) are views showing the positional relationship between the cam member 6 1 and the holding pin 6 2 when the table 3 placed at the stationary position S is pulled out in the B direction. As shown in FIG. 1(a), in a state where the table is set at the storage rest position S, the holding pin 62 of the first pull-in member 6a'pin-inducing member 60 is set to the pin-retaining portion of the cam member 61. 74 'again' In the second pull-in member 6b, the holding pin 62 of the pin inducing member 60 is also set to the pin rest portion 74 of the cam member 61. Therefore, the spring force of the pull-out spring 66 of the table 3' assembled to the pull-in member 6a acts in the B direction, and the spring force of the pull-up spring 66 assembled to the pull-in member 6b acts in the A direction. The table top 3 is set to the storage rest position S with a certain degree of holding force. When the table 3 is moved in the B direction by this state, as shown in FIG. 10(b), at the first pull-in member 68, the retaining pin 62 is guided from the cam member 61 by the pin disengagement groove 75. The groove 7 1 is disengaged, and the engagement state of the cam member 61 and the holding pin 62 is released, so that the table 3 can be moved in the B direction. At this time, in the second pull-in member 6b, the holding pin 62 is moved in the B direction while being engaged with the cam member 61, and in the pin guiding member 60, the pulling spring 66 is in the extended state. Further, when the table 3 that has been pulled out in the B direction is pulled back toward the storage rest position S again, the holding pin 62 of the first pull-in member 6a is guided to the guide of the cam member 61 by the pin disengagement groove 75. In the guide groove 71, the pin retaining portion 74' is again engaged with the cam member 61. Thereby, the positional relationship between the cam member 61 and the holding pin 62 is restored to the state of Fig. 10 (a). As described above, the two-way guide unit 1 of this embodiment can freely move the table 3 in either of the opposite A and B directions toward the storage rest position by the -17-201134439. Moreover, when the table top 3 is accommodated in the storage rest position, even if the storage is carried out in either of the A direction and the B direction, the drawing member 6 can be engaged with the table 3, and the Thrust, the table 3 can be reliably set to the storage rest position. Moreover, when the table top 3 is moved in the A direction from the storage rest position, the engagement state of the second pull-in member 6b and the table 3 is released, so that the table 3 can be moved in the A direction, and the table 3 is additionally When the storage rest position is moved in the B direction, the engagement state of the first pull-in member 6a and the table 3 is released, so that the table 3 can be moved in the B direction. Therefore, according to such a two-way guide unit, when the furniture is separated from the wall surface, the drawer can be used from both the front side and the back side of the furniture, and the drawer can be reliably carried out with the assistance of the elastic thrust. The closing action. Furthermore, in the above embodiment, the table is supported by the pair of sliding members on the bottom plate, and the first pull-in member and the second pull-in member are disposed between the bottom plate and the table, but these pull-in structures The configuration place is not limited to this example. For example, the pin inducing member and the cam member may be directly fixed to the outer rail of the sliding member and the inner rail 'oppositing thereto, or may be indirectly fixed via the mounting plate 'the outer rail and the inner rail opposed thereto The inducing member and the cam member, which constitute the bidirectional guiding unit of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an example of an embodiment of a bidirectional guiding unit of the present invention -18-201134439. Figure 2 is a front elevational view of the two-way guide unit shown in Figure 1. Fig. 3 is a perspective view showing a sliding member used in the bidirectional guiding unit of the embodiment. 4 is an exploded perspective view showing the internal structure of the sliding member shown in FIG. 3. FIG. 5 is a plan view showing a state in which the table is pulled out from the bottom plate in the A direction. FIG. 6 is a view showing that the table is pulled from the bottom plate toward the A direction. Fig. 7 is a perspective view showing a pull-in member used in the bidirectional guide unit of the embodiment. Fig. 8 is a perspective view showing a cam member constituting the pull-in member shown in Fig. 7. Fig. 9 is an explanatory view showing the positional relationship between the cam member and the holding pin when the table is returned to the storage rest position. Fig. 1 is an explanatory view showing a positional relationship between a cam member and a holding pin when the table is moved from the storage rest position. [Main component symbol description] 1 : Two-way guide unit 2 : Base plate 3 : Table plate 5 = Sliding member -19 - 201134439 6 : Pull-in member 6a : First pull-in member 6b : Second pull-in member 5 0 : Outside Rail 51: inner rail 5 2 : intermediate rail 5 3 : mounting portion 54 : ball rolling traveling portion 55 : mounting portion 5 6 : ball rolling traveling portion 57 : ball 5 7 a : ball cage 58 : frame gear 5 9 : pinion 60: pin inducing member 6 1 : cam member 62 : holding pin 63 : outer cover 64 : front panel 65 : induction groove 66 : pulling spring 67 : short nail 68 : locking recess 69 : pulling guide portion - 20 201134439 71 : Guide groove 72: introduction portion 73: action portion 74: pin retention portion 7 5 : pin release groove S: accommodation rest position - 21 -