201007002 六、發明說明： 【發明所屬之技術領域】 本發明是關於拉門之關門阻止裝置，特別是關於具備 有自動關門裝置之拉門中適合做爲可使拉開的拉門停留在 拉開位置的拉門之關門阻止裝置。 • 【先前技術】 '-φ 可使開門的拉門自動關門的裝置有幾種的型式，其中 之一的型式，是由水平設置在門框上部水平框部的直線形 齒條，和固定在拉門，與上述齒條作用性連結使拉門開門 時，可驅動該拉門成爲關門的關門驅動裝置所構成。具體 而言，關門驅動裝置（例如，參照專利文獻η ，具有： 固定在拉門的機殻；旋轉自如地安裝在該機殻，與上述齒 條形成咬合，隨著拉門的開閉沿著齒條滾動的齒輪；在拉 門開門時伴隨著上述齒輪沿著齒條滾動蓄勢有可使該拉門 Φ 關門之彈簧彈推力的彈簧裝置；及在開門的人的手離開拉 門由上述彈簧裝置關門時施以制動的制動裝置。 ^ 針對上述拉門之自動關門裝置，業者期望該裝置也可 ' . 構成爲能夠使拉門停留在拉開的任意位置。 專利文獻2是與上述不同的自動關門裝置，其揭示有 可使拉門停留在拉開位置的裝置。 〔專利文獻1〕日本特開平11-1 5295 5號公報 〔專利文獻2〕日本特公平8-9 93 2號公報 -5 - 201007002 【發明內容】 〔發明欲解決之課題〕 本發明是一種上述自動關門裝置的關門阻止裝置，目 的是提供一種具備有和專利文獻2所揭示之不同機構的新 穎的關門阻止裝置。 〔用以解決課題之手段〕 即’本發明所提供的拉門之關門阻止裝置，具有：能 夠以伴隨著拉門（以下所述的實施形態說明中是以參照圖 號20表示）開閉形成正轉或反轉的旋轉體（38)所鄰接 的樞軸（50 )爲中心形成樞動的支撐體（52 ); 可位移支撐在該支撐體（52)的卡合位移構件（56) ，即該卡合位移構件（56)是一端具有可使該卡合位移構 件（56)能夠位移卡合在該支撐體（52)的支撐體卡合部 (62)，另一端具有卡合在該旋轉體的旋轉體卡合部（54 )，構成爲該旋轉體卡合部（54)能夠和分別隨著該拉門 ❹ 之開門動作及關門動作的該旋轉體的正轉及反轉一起沿著 正轉方向的正轉方向極限位置（第6圖位置）和反轉方向 的反轉方向極限位置（第4圖位置）之間的圓弧形路徑位 移，該支撐體卡合部（62)，在拉門被移動往開門方向使 該旋轉體（38)正轉使該旋轉體卡合部（54)朝正轉方向 極限位置移動時，能夠對該支撐體成相對性位移，此外， 在拉門被移動往關門方向使該旋轉體（38)反轉使該旋轉 體卡合部（54)朝反轉方向極限位置移動時，當該旋轉體 -6- 201007002 卡合部位於該反轉方向極限位置移動途中時，可阻止相對 於該支撐體（52)的相對性位移，藉此隨著該旋轉體卡合 部的位移使該支撐體位移在該樞軸的周圍；及 具有彈性的位移阻止構件（60 )，即該位移阻止構件 (60)是在拉門朝關門方向移動時，構成可隨著該卡合位 移構件（56)造成的該支撐體（52)在該樞軸的位移形成 彈性變形以指定彈性力阻止該支撐體的位移，藉此阻止卡 φ 合位移構件（56)的旋轉體卡合部（54)所卡合的該旋轉 體（38)的旋轉以阻止該拉門的關門動作，同時當施加有 該指定彈性力以上的力時就會更加變形以容許該支撐體（ 52)的該位移，容許旋轉體卡合部（54)位移至該反轉方 向極限位置。 該關門阻止裝置，當拉開拉門的手離開使自動關門裝 置的關門動作開始時，上述具有彈性的位移阻止構件（60 )就會以指定的彈性力阻止關門動作，使拉門停留在拉開 φ 位置。當對該拉門施加有上述指定彈性力以上的關門方向 力時，具有彈性的位移阻止構件就會更加位移導致支撐體 位移，藉此，使旋轉體卡合部朝反轉方向極限位置位移， . 容許拉門關門。 具體而言，支撐體（52)，具有可使該卡合位移構件 (56)的該旋轉體卡合部（62)支撐成能夠位移的支撐部 (該實施形態是形成爲V形的溝槽64)，該支撐部（64 )，可構成爲具有：當該旋轉體卡合部（62)位於該正轉 方向極限位置及反轉方向極限位置時和該支撐體卡合部卡 201007002 合的支撐中央部（64-1);當該旋轉體卡合部從反轉方向 極限位置沿著該圓弧形路徑位移至正轉方向極限位置時， 爲了引導伴隨著該位移形成位移的該支撐體卡合部（62) 而從該支撐中央部（64-1 )延伸出來的開門時引導面（64-2);及當該旋轉卡合部（62)從正轉方向極限位置沿著 該圓弧形路徑朝反轉方向極限位置位移時，伴隨著該位移 ’引導位於支撐中央部（64_1 )的該支撐體卡合部（62) 從該支撐體卡合部（62)位移，當旋轉卡合部（62)到達 _ 該圓弧形路徑途中時能夠以阻止該支撐體卡合部（62)相 對於該支撐體（52)的相對性位移而構成從支撐中央部（ 64-1)延伸出來的關門時引導面（64-3)。 此外，該關門阻止裝置，可構成爲， 具有鄰接於旋轉體（38)，設置成和支撐體（52)的 樞軸（50)平行的推壓構件（68)， 支撐體（52)，具有推壓構件（68)穿通用的插通孔 (66) ’同時具備有上述具有彈性的位移阻止構件（60 ) 0 9 插通孔（66)，是在旋轉體卡合部（62)朝反轉方向 .. 極限位置移動使支撐體（52)在樞軸（50)的周圍形成位 移時，構成能夠對推壓構件（68 )形成相對性位移， 上述具有彈性的位移阻止構件（60)，是隨著支撐體 (52)的上述位移由上述推壓構件（68 )推壓卡合，以阻 止該支撐體的樞動。 推壓構件（68 )，是螺絲卡合在沿著支撐體（52 )之 -8- 201007002 樞軸（50)平行的樞軸所設置的螺絲構件（70)，將該螺 絲構件（70 )旋轉在樞軸的周圍可使推壓構件（68 )位移 在軸線方向，藉此，就可構成爲能夠調整相對於位移阻止 構件（60)之推壓構件（68)的推壓卡合程度》 具體而言，推壓構件（68)是構成爲具有面對著具有 彈性的位移阻止構件（60 )形成突出，在樞軸（5 0 )方向 具有傾斜之傾斜面的推壓部（68-1 )，藉由螺絲構件（70 )的旋轉，就能夠調整相對於該具有彈性的位移阻止構件 (60 )的傾斜面位置，能夠調整相對於位移阻止構件（60 )之推壓構件（68)的推壓卡合程度。 另一形態，可構成爲，具有彈性的位移阻止構件（60 )是設置成樞軸（50)方向傾斜，推壓構件（68)具有朝 具有彈性的位移阻止構件（60)突出的推壓部（68-1 )， 利用螺絲構件能夠調整相對於位移阻止構件（60 )的推壓 部位置。 本發明又提供一種具有拉門關門阻止裝置之自動關門 裝置， 該自動關門裝置，具備：具有可和設定在拉門開閉方 向的齒條（18)咬合的第1齒輪（32)，隨著拉門的開門 動作，沿著該齒條（18)隨著該第1齒輪（32)的轉動蓄 勢有可使該第1齒輪（32)朝相反方向轉動之彈簧彈推力 的關門驅動裝置；具備咬合在該第1齒輪（32)的第2齒 輪（38)，在隨著拉門朝關門位置的移動使第2齒輪（38 )轉動時，可對該轉動執行制動的制動裝置；及該關門驅 -9 - 201007002 動裝置和該制動裝置收納用的機殼（30)，該自動關門裝 置中具有設定在該機殼（30)內的上述拉門關門阻止裝置 ，該拉門關門阻止裝置是構成將該旋轉體作爲該第2齒輪 ，將該旋轉體卡合部作爲卡合於該第2齒輪之齒的插銷。 以下，根據附圖對本發明的實施形態進行說明。 【實施方式】 〔發明之最佳實施形態〕 0 第1圖及第2圖是圖示著拉門裝置12,該拉門裝置 12已安裝有具備本發明相關的拉門之關門阻止裝置1的自 動關門裝置1 〇。 該自動關門裝置10,具有：固定在門框14的上部框 部16的齒條18;及固定在拉門20，作用性連結在齒條18 的關門驅動裝置22。 關門驅動裝置22，如第2圖所示，具有：固定在拉門 20的機殻30;可旋轉地安裝在該機殼的齒輪（旋轉構件 © )32;使齒條18水平通過與齒輪32之間，可保持著齒條 18的齒和齒輪32的齒卡合的卡合保持構件36;在齒輪32 . 內側設置成與該齒輪同心狀的捲簧31，該捲簧31構成爲 隨著拉門20從關門位置朝開門位置移動時齒輪32的轉動 ，可蓄勢有能夠使該齒輪32朝與該轉動相反方向轉動的 彈簧彈推力；及具備咬合在齒輪32的齒輪38，在隨著拉 門20的朝關門位置移動使齒輪32轉動時，可對該轉動執 行制動的制動裝置40。第2圖中的42是彈簧構件，在該 -10- 201007002 圖是安裝在跟前所設置的該機殼側壁（未圖示）的內壁面 。其是推壓著和固定有上述捲簧一端的軸33成一體的六 角部份44相向的二面藉此阻止軸的旋轉。在改變捲簧的 強度時，利用鈑手等旋轉六角部份使上述軸旋轉藉此使捲 簧捲緊或鬆捲。 本發明相關的關門阻止裝置1，具有：構成爲相對於 機殼30可樞動在樞軸50周圍的支撐體52:卡合在由支撐 I 體52支撐成可位移之齒輪38的卡合位移構件56，該卡合 位移構件5 6具有可和分別隨著拉門2 0開門動作及關門動 作之齒輪38的正轉（第2圖中爲順時針轉動）及反轉（ 逆時針轉動）一起在正轉方向的正轉方向極限位置（第6 圖位置）和反轉方向的反轉方向極限位置（第4圖位置） 之間沿著圓弧形路徑位移的第1插銷（旋轉體卡合部）54 ;及在隨著拉門朝關門方向的移動，由齒輪38使卡合位 移構件56的第1插銷54從正轉方向極限位置（第6圖） φ 朝反轉方向極限位置（第4圖）移動時，以指定彈性力如 以下所述阻止該第1插銷54的位移，阻止第1插銷54所 卡合之齒輪38的旋轉，藉此阻止齒輪32的轉動以阻止該 ' 拉門關門動作之具有彈性的位移阻止構件6 0。 卡合位移構件56，具體而言，一端具有第1插銷54 ’另一端具有可使該卡合位移構件56位移卡合在支撐體 52的第2插銷（支撑體卡合部）62。支撐體52，具有和 卡合位移構件56滑動卡合的v字形溝槽（支撐部）64。 該溝槽64以第4圖至第6圖來看是形成爲心形，當齒輪 -11 - 201007002 38正轉（即，隨著開門動作朝順時針方向旋轉）使第1插 銷54從反轉方向極限位置（第4圖）朝正轉方向極限位 置（第6圖）移動時，可使第2插銷62毫無阻力地沿著 溝槽64以圖看爲右側的部份位移。此外，當第1插銷54 從正轉方向極限位置（第6圖）朝反轉方向極限位置（第 4圖）移動時，可使第2插銷62沿著溝槽64以圖看爲左 側的部份位移，當第1插銷54從正轉方向極限位置（第6 圖）到達反轉方向極限位置（第4圖）之到達圓弧形路徑 @ 中央部份之前，就會到達溝槽64的左側部份上端阻止相 對於該支撐體52的相對性位移。當卡合在溝槽64左側部 份上端的第1插銷54更往該圓弧形路徑中央部份位移時 ，該第1插銷54會導致支撐體52朝逆時針方向樞動在樞 軸50的周圍。 溝槽64,從以上所述得知，其具有：當第1插銷54 位於正轉方向極限位置（第6圖）及反轉方向極限位置（ 第4圖）時和第2插銷62卡合的支撐中央部64-1;當第 〇 1插銷54從反轉方向極限位置（第4圖）沿著該圓弧形路 徑位移至正轉方向極限位置（第6圖）時，爲了引導隨著 .. 該位移形成位移的第2插銷62而從支撐中央部64-1延伸 出來的開門時引導面64-2 ;及當第1插銷54從正轉方向 極限位置（第6圖）沿著該圓弧形路徑朝反轉方向極限位 置（第4圖）位移時，伴隨著該位移，引導位於支撐中央 部64-1的第1插銷54從支撐中央部64-1位移，當第1插 銷54到達該圓弧形路徑途中時以能夠阻止第2插銷62相 12- 201007002 對於支撐體52之相對性位移的長度從支撐中央部64_ι延 伸出來的關門時引導面64-3。 支撐體52，以第2圖來看是由跟前側和深處側的2個 構件構成’樞接在關門驅動裝置的機殼30，設有延伸成平 行於樞軸50，橫剖面爲矩形的插通孔66，該插通孔66， 穿通有由上述具有彈性的位移阻止構件60推壓的剖面矩 形推壓構件68。具體而言，推壓構件68是形成爲筒狀， 螺絲卡合在平行於支撐體52樞軸50可旋轉地設置在機殼 30的螺絲構件70，螺絲構件70的旋轉是可使推壓構件68 位移在軸線方向。具有彈性的位移阻止構件60是於插通 孔66的底部在該插通孔的軸線方向隔著間隔設置有2個 。此外，推壓構件68，設有對應著該2個具有彈性的位移 阻止構件60形成具有傾斜面的推壓部68-1。因此，螺絲 構件70繞著其軸線的旋轉，可使卡合在該螺絲構件70的 推壓構件68位移在軸線方向，能夠調整具有彈性的位移 阻止構件60其應對之推壓部68-1的相對性位置。 當拉門欲往關門方向位移，使齒輪38欲朝逆時針方 向旋轉時，如以上所述的第2插銷62會沿著V字形溝槽 64的關門時引導面64-3的引導到達其上端，然後停止沿 著該引導面的移動’如此一來，當支撐體52在樞軸50的 周圍（圖中爲朝逆時針方向）樞動時，推壓構件68是對 插通孔66成相對性往下方位移，然後推壓卡合於彈性變 形阻止構件6 0。如此一來’支撐體5 2的樞動就受到阻止 ，因此，第1插銷54的位移就受到阻止，使齒輪38的旋 -13- 201007002 轉受阻，停止關門動作。 具有彈性的位移阻止構件60，在如以上所述對停止的 拉門朝關門方向施加有一定以上的力時，會更加彈性變形 使支撐體52更加往逆時針方向轉動，藉此容許第1插銷 54行進在該圓弧形路徑位移至反轉方向極限位置（第4圖 位置），如此一來，就能夠使拉門利用關門驅動裝置22 形成爲自動關門。 第10圖及第11圖是圖示著本發明相關的關門阻止裝 置第2實施形態的要部。該實施形態中，具有彈性的位移 阻止構件60是一體成型爲延伸在支撐體52構成用的2個 構件間，推壓構件68對該支撐體52形成相對性的位移， 可使設置在推壓構件的突起（推壓部）68-1形成與該具有 彈性的位移阻止構件60推壓卡合。 第12圖及第13圖是圖示著該實施形態中，藉由和第 1實施形態的螺絲構件70相同的螺絲構件的旋轉調整該推 壓構件的軸線方向位置，使該推壓構件68推壓卡合於具 有彈性的位移阻止構件60時之調整該具有彈性的位移阻 止構件60其彈性力的例子。 【圖式簡單說明】 第1圖爲表示已安裝有具備本發明相關之關門阻止裝 置的自動關門裝置之拉門裝置槪要圖。 第2圖爲表示第1圖自動關門裝置的內部圖，圖示著 該裝置的機殻跟前側壁除外的內部圖。 -14- 201007002 第3圖爲表示安裝在第2圖自動關門裝置的關門阻止 裝置要部的剖面圖。 第4圖爲表示第3圖關門阻止裝置於開門當前的狀態 圖，上方圖示著對應第3圖的圖，下方圖示著對應第2圖 的圖。 第5圖爲表示第3圖關門阻止裝置於開門已經開始的 狀態圖，上方圖示著對應第3圖的圖，下方圖示著對應第 I 2圖的圖。201007002 VI. Description of the Invention: [Technical Field] The present invention relates to a door closing device for a sliding door, and particularly to a sliding door provided with an automatic door closing device, which is suitable as a sliding door that can be pulled open. The door closing device of the position of the sliding door. • [Prior Art] '-φ There are several types of devices that can automatically close the door to open the door. One of the types is a linear rack that is horizontally placed on the horizontal frame at the top of the door frame, and is fixed in the pull. When the door is operatively coupled to the rack to open the door, the door can be driven to close the door. Specifically, the door closing driving device (for example, referring to Patent Document η) has: a casing fixed to the sliding door; rotatably attached to the casing, forming a mesh with the rack, and opening and closing along the teeth with the sliding door a rolling gear; when the sliding door is opened, the spring gear along which the gear is rolled along the rack has a spring force that can cause the sliding door Φ to close the spring; and the person who opens the door leaves the sliding door by the spring The brake device is applied when the device is closed. ^ For the automatic door closing device for the above-mentioned sliding door, the device is expected to be able to hold the sliding door at any position where it is pulled apart. Patent Document 2 is different from the above. The automatic door closing device discloses a device that can cause the sliding door to stay in the open position. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei 11-1 5295 5 [Patent Document 2] Japanese Patent Publication No. 8-9 93 No. 2 - 5 - 201007002 [Problem to be Solved by the Invention] The present invention is a door closing preventing device for the above-described automatic door closing device, and an object of the invention is to provide a door closing device disclosed in Patent Document 2 A novel door closing device of the mechanism. [Means for Solving the Problem] That is, the door closing device for a sliding door provided by the present invention has a sliding door (the following description of the embodiment is referred to Figure 20 shows a pivoting support body (52) centering on a pivot (50) adjacent to the rotating body (38) that opens or closes to form a forward or reverse rotation; a card that is displaceably supported on the support body (52) The displacement member (56), that is, the engagement displacement member (56), has a support engagement portion (62) at one end that allows the engagement displacement member (56) to be displaced and engaged with the support body (52), The other end has a rotating body engaging portion (54) that is engaged with the rotating body, and the rotating body engaging portion (54) is configured to be movable with the sliding door and the closing operation of the sliding door respectively. The circular arc-shaped path displacement between the forward rotation and the reverse rotation together with the forward direction limit position (Fig. 6 position) in the forward rotation direction and the reverse direction limit position (Fig. 4 position) in the reverse rotation direction, the support The body engaging portion (62) is moved in the direction of opening the door When the rotating body (38) is rotated to move the rotating body engaging portion (54) in the forward direction limit position, the supporting body can be relatively displaced, and the rotating body is moved in the closing direction. (38) When the reversing body moves the rotating body engaging portion (54) toward the reverse direction limit position, when the rotating body -6-201007002 engaging portion is in the middle of the reverse direction limit position, the relative position can be prevented a relative displacement of the support body (52), whereby the support body is displaced around the pivot shaft with the displacement of the rotating body engaging portion; and an elastic displacement preventing member (60), that is, the displacement is prevented The member (60) is configured to elastically deform the displacement of the support body (52) along the displacement of the pivot body (56) caused by the engagement displacement member (56) to specify the elastic force to prevent the support when the sliding door moves toward the closing direction. Displacement of the body, thereby preventing rotation of the rotating body (38) to which the rotating body engaging portion (54) of the engaging member (56) is engaged to prevent the closing operation of the sliding door, while applying the When the force above the elastic force is specified, it will be more deformed. This displacement of the support body (52) is allowed to allow the rotation body engaging portion (54) to be displaced to the reverse direction limit position. The door closing preventing device, when the door for pulling the door leaves to cause the door closing action of the automatic door closing device to start, the elastic displacement preventing member (60) blocks the door closing action with a specified elastic force, so that the sliding door stays in the pulling Open the φ position. When the door closing direction force of the specified elastic force or more is applied to the sliding door, the elastic displacement preventing member is more displaced to cause the support body to be displaced, thereby displace the rotating body engaging portion toward the reverse direction limit position. Allow the door to close. Specifically, the support body (52) has a support portion that can support the rotation body engagement portion (62) of the engagement displacement member (56) to be displaceable (this embodiment is a groove formed into a V shape) 64) The support portion (64) may be configured to have a combination of the support engagement card card 201007002 when the rotary body engagement portion (62) is located at the extreme position in the forward rotation direction and the extreme position in the reverse direction. a support center portion (64-1); when the rotating body engagement portion is displaced from the reverse direction limit position along the circular arc path to the forward rotation direction limit position, the support body is formed to guide displacement accompanying the displacement a locking portion (64-2) extending from the supporting central portion (64-1), and a rotation guiding portion (62) from the forward direction to the extreme position along the circle When the curved path is displaced toward the extreme position in the reverse direction, the support engaging portion (62) located at the central portion (64_1) of the support is displaced from the support engaging portion (62) with the displacement, when the card is rotated When the joint portion (62) reaches the middle of the arc-shaped path, the support body engaging portion can be prevented (6) 2) A door closing guide surface (64-3) extending from the support center portion (64-1) is formed with respect to the relative displacement of the support body (52). Further, the door closing preventing device may be configured to have a pressing member (68) adjacent to the rotating body (38) and disposed in parallel with the pivot (50) of the supporting body (52), and the supporting body (52) having The pressing member (68) passes through the universal insertion hole (66)' and has the above-mentioned elastic displacement preventing member (60) 0 9 insertion hole (66), which is reversed at the rotating body engaging portion (62) Direction of rotation: When the limit position moves to cause the support body (52) to be displaced around the pivot (50), it is configured to form a relative displacement to the pressing member (68), and the elastic displacement preventing member (60), The above-described displacement of the support body (52) is pressed and engaged by the pressing member (68) to prevent the pivoting of the support body. The pressing member (68) is a screw member (70) which is screwed to a pivot which is parallel to the pivot (50) of the -8-201007002 along the support body (52), and rotates the screw member (70) The pressing member (68) is displaced in the axial direction around the pivot, whereby the pressing engagement degree with respect to the pressing member (68) of the displacement preventing member (60) can be adjusted. In other words, the pressing member (68) is configured to have a pressing portion (68-1) that faces the elastic displacement preventing member (60) to form a protrusion and has an inclined inclined surface in the pivot (50) direction. By the rotation of the screw member (70), the position of the inclined surface with respect to the elastic displacement preventing member (60) can be adjusted, and the pushing of the pressing member (68) with respect to the displacement preventing member (60) can be adjusted. The degree of compression. In another aspect, the elastic displacement preventing member (60) may be disposed to be inclined in a pivot (50) direction, and the pressing member (68) may have a pressing portion that protrudes toward the elastic displacement preventing member (60). (68-1) The position of the pressing portion with respect to the displacement preventing member (60) can be adjusted by the screw member. The present invention further provides an automatic door closing device having a sliding door closing preventing device, comprising: a first gear (32) having a rack (18) that can be engaged with a rack opening and closing direction; a door opening operation of the door, along with the spring gear of the first gear (32) along the rack (18), and a spring-loaded door closing driving device capable of rotating the first gear (32) in the opposite direction; a second gear (38) that is engaged with the first gear (32), and a brake device that can brake the rotation when the second gear (38) is rotated as the sliding door moves toward the closed door position; and the closing door DRIVE-9 - 201007002 A moving device and a casing (30) for accommodating the brake device, the automatic door closing device having the above-mentioned sliding door closing preventing device set in the casing (30), the sliding door closing preventing device is The rotating body is configured as the second gear, and the rotating body engaging portion is a latch that engages with the teeth of the second gear. Hereinafter, embodiments of the present invention will be described with reference to the drawings. [Embodiment] [Best Embodiment of the Invention] 0 FIGS. 1 and 2 are diagrams showing a sliding door device 12 to which a door closing device 1 having a sliding door according to the present invention is attached. Automatic door closing device 1 〇. The automatic door closing device 10 includes a rack 18 fixed to the upper frame portion 16 of the door frame 14, and a door closing driving device 22 fixed to the sliding door 20 and operatively coupled to the rack 18. The door closing driving device 22, as shown in Fig. 2, has a casing 30 fixed to the sliding door 20, a gear (rotating member ©) rotatably mounted to the casing, and a rack 18 horizontally passing through the gear 32. Between the teeth, the engagement of the teeth of the rack 18 and the teeth of the gear 32 can be maintained; the inner side of the gear 32 is provided with a coil spring 31 concentric with the gear, and the coil spring 31 is configured to follow When the sliding door 20 moves from the closing position to the opening position, the rotation of the gear 32 can accumulate a spring-loading force capable of rotating the gear 32 in a direction opposite to the rotation; and a gear 38 that is engaged with the gear 32, When the sliding door position of the sliding door 20 is moved to rotate the gear 32, the braking device 40 that performs braking can be performed. 42 in Fig. 2 is a spring member, and the figure is attached to the inner wall surface of the side wall (not shown) of the casing provided in front of the -10-201007002. This is to press the two faces of the hexagonal portion 44 which are integral with the shaft 33 to which one end of the coil spring is fixed, thereby preventing the rotation of the shaft. When the strength of the coil spring is changed, the shaft is rotated by a twisting hand or the like to rotate the shaft to thereby wind up or unwind the coil. The door closing prevention device 1 according to the present invention has a support body 52 that is configured to be pivotable about the pivot 50 with respect to the casing 30: a snap-fit displacement of the gear 38 that is supported by the support I body 52 to be displaceable The member 56, the engaging displacement member 56 has a forward rotation (clockwise rotation in FIG. 2) and reverse rotation (counterclockwise rotation) together with the gear 38 which respectively opens and closes the door according to the sliding door 20; The first pin (rotating body engagement) that is displaced along the circular path between the forward direction limit position (Fig. 6 position) in the forward direction and the reverse direction limit position (Fig. 4 position) in the reverse direction And the first pin 54 of the engagement displacement member 56 is rotated from the forward rotation direction limit position (Fig. 6) φ to the reverse direction limit position by the gear 38; 4) When moving, the displacement of the first pin 54 is blocked by the specified elastic force as described below, and the rotation of the gear 38 engaged with the first pin 54 is prevented, thereby preventing the rotation of the gear 32 to block the sliding door. The elastic displacement preventing member 60 of the closing action. Specifically, the engagement displacement member 56 has a first insertion pin 54' at one end and a second insertion pin (support engagement portion) 62 that can displace and engage the engagement displacement member 56 to the support body 52. The support body 52 has a v-shaped groove (support portion) 64 that is slidably engaged with the engagement displacement member 56. The groove 64 is formed in a heart shape as seen in FIGS. 4 to 6 , and the first pin 54 is reversed when the gear -11 - 201007002 38 is rotated forward (that is, rotated clockwise with the door opening action). When the direction limit position (Fig. 4) is moved in the forward direction limit position (Fig. 6), the second plug 62 can be displaced along the groove 64 as shown on the right side without any resistance. Further, when the first latch 54 moves from the forward direction limit position (Fig. 6) to the reverse direction limit position (Fig. 4), the second latch 62 can be seen as the left side along the groove 64. The displacement of the first pin 54 reaches the left side of the groove 64 before reaching the reverse direction limit position (Fig. 4) from the forward direction limit position (Fig. 6) to the arcuate path @ center portion. A portion of the upper end resists relative displacement relative to the support body 52. When the first latch 54 that is engaged with the upper end of the left portion of the groove 64 is displaced toward the central portion of the circular path, the first latch 54 causes the support 52 to pivot in the counterclockwise direction at the pivot 50. around. As described above, the groove 64 has a state in which the first pin 54 is engaged with the second pin 62 when the first pin 54 is in the forward rotation limit position (Fig. 6) and the reverse direction limit position (Fig. 4). Supporting the central portion 64-1; when the first 插1 latch 54 is displaced from the reverse direction limit position (Fig. 4) along the circular arc path to the forward direction limit position (Fig. 6), in order to guide the following. The displacement forms a second pin 62 that is displaced and extends from the support center portion 64-1 to the door opening guide surface 64-2; and when the first pin 54 passes from the forward direction limit position (Fig. 6) along the circle When the arcuate path is displaced in the reverse direction limit position (Fig. 4), the first pin 54 located at the support center portion 64-1 is guided to be displaced from the support center portion 64-1 with the displacement, and when the first pin 54 is reached When the circular arc path is in the middle, the door closing guide surface 64-3 which can prevent the relative displacement of the second pin 62 phase 12-201007002 from the support body 52 from the support center portion 64_ι is blocked. The support body 52, as seen in Fig. 2, is composed of two members on the front side and the deep side, and is pivotally connected to the casing 30 of the door closing drive device, and is provided to extend parallel to the pivot 50 and has a rectangular cross section. The insertion hole 66 is inserted through the cross-sectional rectangular pressing member 68 which is pressed by the elastic displacement preventing member 60. Specifically, the pressing member 68 is formed in a cylindrical shape, and the screw is engaged with the screw member 70 rotatably provided to the casing 30 parallel to the pivot 50 of the support body 52, and the rotation of the screw member 70 is such that the pressing member can be pushed. 68 Displacement in the direction of the axis. The elastic displacement preventing member 60 is provided at the bottom of the insertion hole 66 at intervals in the axial direction of the insertion hole. Further, the pressing member 68 is provided with a pressing portion 68-1 having an inclined surface corresponding to the two elastic displacement preventing members 60. Therefore, the rotation of the screw member 70 about its axis allows the pressing member 68 that is engaged with the screw member 70 to be displaced in the axial direction, and the elastic displacement preventing member 60 can be adjusted to cope with the pressing portion 68-1. Relative position. When the sliding door is to be displaced in the closing direction, and the gear 38 is to be rotated in the counterclockwise direction, the second latch 62 as described above is guided along the guiding surface 64-3 of the V-shaped groove 64 to the upper end thereof. Then, the movement along the guiding surface is stopped. [Thus, when the supporting body 52 is pivoted around the pivot 50 (in the counterclockwise direction in the drawing), the pressing member 68 is opposed to the insertion hole 66. The force is displaced downward, and then the push is engaged with the elastic deformation preventing member 60. As a result, the pivoting of the support body 5 2 is prevented, so that the displacement of the first pin 54 is prevented, and the rotation of the gear 38 is blocked, and the door closing operation is stopped. The elastic displacement preventing member 60, when a certain amount of force is applied to the stopped sliding door in the closing direction as described above, is more elastically deformed to further rotate the supporting body 52 counterclockwise, thereby allowing the first latch. The travel of the arcuate path is shifted to the reverse direction limit position (Fig. 4 position), so that the sliding door can be formed to be automatically closed by the door closing driving device 22. Fig. 10 and Fig. 11 are diagrams showing essential parts of the second embodiment of the door closing preventing device according to the present invention. In this embodiment, the elastic displacement preventing member 60 is integrally formed to extend between the two members for the support body 52, and the pressing member 68 forms a relative displacement to the support body 52, and can be placed on the pressing member. The protrusion (pressing portion) 68-1 of the member is formed to be pressed and engaged with the elastic displacement preventing member 60. 12 and 13 are views showing the position of the pressing member in the axial direction by the rotation of the screw member similar to the screw member 70 of the first embodiment, and the pressing member 68 is pushed. An example of adjusting the elastic force of the elastic displacement preventing member 60 when the pressure is engaged with the elastic displacement preventing member 60. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a sliding door device in which an automatic door closing device having a door closing preventing device according to the present invention is mounted. Fig. 2 is an internal view showing the automatic door closing device of Fig. 1, showing an internal view of the casing except the front side wall of the device. -14- 201007002 Fig. 3 is a cross-sectional view showing the main part of the door closing prevention device attached to the automatic door closing device of Fig. 2. Fig. 4 is a view showing a state in which the door closing device of Fig. 3 is opened at the front, and a diagram corresponding to Fig. 3 is shown at the top, and a diagram corresponding to Fig. 2 is shown at the bottom. Fig. 5 is a view showing a state in which the door closing preventing device of Fig. 3 has started to open the door, the figure corresponding to Fig. 3 is shown at the top, and the figure corresponding to Fig. 2 is shown at the bottom.
W 第6圖爲表示第3圖關門阻止裝置於開門動作中的狀 態圖，上方圖示著對應第3圖的圖，下方圖示著對應第2 圖的圖。 第7圖爲表示第3圖關門阻止裝置於開門後手離開拉 門時的狀態圖，上方圖示著對應第3圖的圖，下方圖示著 對應第2圖的圖。 第8圖爲表示第3圖關門阻止裝置於拉門停留在開門 φ 位置時的狀態圖，上方圖示著對應第3圖的圖，下方圖示 著對應第2圖的圖。 第9圖爲表示第3圖關門阻止裝置從拉門停留在開門 ' 狀態時的第8圖狀態再度施加拉門關門方向力使拉門成爲 關門動作狀態時的狀態圖，上方圖示著對應第3圖的圖， 下方圖示著對應第2圖的圖。 第10圖爲表示關門阻止裝置的另一實施形態中拉門 拉開時的狀態，左方圖示著對應第2圖的圖，右方圖示著 對應第3圖的圖。 -15- 201007002 第11圖爲表示手離開拉開的拉門使拉門從第10圖的 狀態朝關門方向移動，利用關門阻止裝置使拉門成爲停止 時的狀態，左方圖示著對應第2圖的圖，右方圖示著對應 第3圖的圖。 第12圖爲表示第1〇圖實施形態中推壓構件的軸線方 向位置調整後的狀態，左方圖示著對應第2圖的圖，右方 圖示著對應第3圖的圖。 第13圖爲表示第12圖實施形態中拉開的拉門受到關 門阻止的狀態，左方圖示著對應第2圖的圖，右方圖示著 對應第3圖的圖。 【主要元件符號說明】 1 〇 :自動關門裝置 1 2 :拉門裝置 1 4 :門框 16 :上部框部 ⑩ 1 8 :齒條 20 :拉門 22 :關門驅動裝置 3〇 :機殼 32 :齒輪 38 :齒輪 40 :制動裝置 44 :彈簧構件 -16- 201007002 5 Ο .樞軸 52 :支撐體 54 :第1插銷（旋轉體卡合部） 56 :卡合位移構件 60 :具有彈性的位移阻止構件 62:第2插銷（支撐體卡合部） 64 :溝槽（支撐部） 64-1 :支撐中央部 64-2 :開門時引導面 64-3 :關門時引導面 66 :插通孔 68 :推壓構件 6 8 -1 _推壓部 70 :螺絲構件 -17-W Fig. 6 is a view showing a state in which the door closing device of Fig. 3 is opened during the door opening operation, the figure corresponding to Fig. 3 is shown at the top, and the figure corresponding to Fig. 2 is shown at the bottom. Fig. 7 is a view showing a state in which the door closing preventing device of Fig. 3 is separated from the sliding door after the door is opened, and the figure corresponding to Fig. 3 is shown in the upper drawing, and the drawing corresponding to Fig. 2 is shown in the lower drawing. Fig. 8 is a view showing a state in which the door closing preventing means of Fig. 3 is held at the position of opening the door φ, and the figure corresponding to Fig. 3 is shown at the top, and the figure corresponding to Fig. 2 is shown at the bottom. Fig. 9 is a view showing a state in which the door closing prevention device of Fig. 3 is again applied with the sliding door closing direction force from the state in which the sliding door is in the door opening state, and the sliding door is in the door closing state. In the figure of Fig. 3, the figure corresponding to Fig. 2 is shown below. Fig. 10 is a view showing a state in which the sliding door is opened in another embodiment of the door closing preventing device, and the figure corresponding to Fig. 2 is shown on the left side, and the figure corresponding to Fig. 3 is shown on the right side. -15- 201007002 Fig. 11 is a view showing that the door is moved away from the sliding door, and the sliding door is moved from the state of Fig. 10 toward the door closing direction, and the door closing device is used to stop the sliding door, and the left side shows the corresponding state. In the figure of Fig. 2, the figure corresponding to Fig. 3 is shown on the right. Fig. 12 is a view showing a state in which the axial direction position of the pressing member is adjusted in the first embodiment, and the figure corresponding to Fig. 2 is shown on the left side, and the figure corresponding to Fig. 3 is shown on the right side. Fig. 13 is a view showing a state in which the sliding door opened in the embodiment of Fig. 12 is blocked by the closing door, and the figure corresponding to Fig. 2 is shown on the left side, and the figure corresponding to Fig. 3 is shown on the right side. [Main component symbol description] 1 〇: Automatic door closing device 1 2 : Sliding door device 1 4 : Door frame 16 : Upper frame portion 10 1 8 : Rack 20 : Sliding door 22 : Door closing device 3 〇 : Case 32 : Gear 38: Gear 40: Brake device 44: Spring member-16-201007002 5 Ο. Pivot 52: Support body 54: First pin (rotating body engaging portion) 56: Engagement displacement member 60: Elastic displacement preventing member 62: 2nd pin (support body engaging portion) 64: groove (support portion) 64-1: support center portion 64-2: guide surface 64-3 when opening the door: guide surface 66 when closing the door: insertion hole 68: Pushing member 6 8 -1 _ Pushing portion 70: Screw member -17-