1325905 玖、發明說明： (一） 發明所屬之技術領域 (產業上之利用領域） 本發明係有關鏈式線跡縫紉機等，以作橢圓運動的推布 齒送原布的縫紉機之推布裝置者，詳言之，係關於透過裝 設推布齒的推布台具有用來防止潤滑油洩漏的密閉機構縫 紉機之推布裝置者。 (二） 先前技術 先前的縫紉機之推布裝置，係以插通在推布台的密閉體 馨 來防止漏油（例如，參照專利文獻1 )。推布台乃連結於公知 之上下驅動機構及前後驅動機構，推布台之端部係自固定 在縫紉機框架前面窗部（缺口）的隔壁板（支承台）突出。推布 台端部裝設有推布齒，密閉體係以可上下滑動地配置在隔 壁板之後側。尙密閉體以彈性壓板推壓隔壁板》 依具有如此構成的先前縫紉機之推布裝置，在縫紉機驅 動時推布台係沿送原布方向實行上下前後的橢圓運動，一 般以公知之給油機構形成爲供給潤滑油於縫紉機框架內。 儀| 此時，密閉台係隨著推布台之橢圓運動邊滑動於上下去除 附著在推布台的潤滑油，作成潤滑油不會從隔壁板之推布 台用穿通孔洩漏於外部。 [專利文獻1] 日本國實開昭49-139055號公報（第1頁 '第1-2圖） (三） 發明內容 (發明欲解決的課題） -5- 1325905 可是，在先前縫紉機之推布裝置，係作成密閉體以彈性 壓板邊推壓而在隔壁板上下滑動的構成，所以縫紉機之驅 動設爲高速時具有所謂密閉體缺乏耐久性的問題。又，此 時’密閉體不能追隨推布台之上下移動而變形，有密閉體 與推布台的滑接面產生間隙不能充分去除潤滑油之慮。爲 了避免此慮予以減弱彈性壓板之推壓時，隨著推布台的前 後移動在隔壁板與密閉體之間產生間隙，而從其間隙浸入 潤滑油。且自此間隙浸入的潤滑油透過隔壁板與密閉體之 間到達隔壁板之推布台用穿通孔，在縫紉機框架外部有產 · 生漏油之慮。 本發明係有鑑於上述實際狀況所完成者，在於提供一種 縫紉機之推布裝置，不但提高了插通於推布台的密閉體之 耐久性，同時透過隔壁板之推布台用穿通孔可防止潤滑油 洩漏於外部爲目的。 _ (欲解決課題的手段）1325905 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 ) ) ) ) ) ) ) ) ) ) ) ) ) In particular, it is a pusher device for a sewing machine that has a sealing mechanism for preventing leakage of lubricating oil by a pushing table that is provided with a pushing cloth. (2) Prior art The push device for the sewing machine of the prior art prevents leakage of oil by the sealing body inserted into the push table (for example, refer to Patent Document 1). The push table is coupled to a known upper and lower drive mechanism and a front and rear drive mechanism, and the end of the push table protrudes from a partition plate (support stand) fixed to the front window portion (notch) of the sewing machine frame. The pusher table end is provided with pusher teeth, and the airtight system is disposed on the rear side of the partition plate so as to be slidable up and down.尙 尙 体 以 以 以 》 》 》 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依 依To supply lubricant into the frame of the sewing machine. At this time, the closed stage slides up and down with the elliptical motion of the push table to remove the lubricating oil adhering to the push table, and the lubricating oil does not leak from the push-through hole of the partition plate. [Patent Document 1] Japanese Patent Publication No. Sho 49-139055 (Page 1 '1-2) (III) Summary of the Invention (Problems to be Solved by the Invention) -5 - 1325905 However, in the previous sewing machine In the case where the sealing body is pressed by the elastic pressing plate and slides down the partition plate, the driving of the sewing machine has a problem that the sealing body lacks durability. Further, at this time, the "closed body" cannot be deformed following the movement of the push table, and the gap between the closed body and the sliding surface of the push table cannot sufficiently remove the lubricating oil. In order to avoid this, the pressing force of the elastic pressure plate is weakened, and a gap is formed between the partition plate and the sealing body as the front and rear movement of the cloth pushing table, and the lubricating oil is immersed from the gap. Further, the lubricating oil immersed in the gap passes through the through-hole of the push-pull table of the partition plate between the partition plate and the sealing body, and the oil leakage occurs outside the sewing machine frame. The present invention has been made in view of the above-described actual circumstances, and provides a pushing device for a sewing machine, which not only improves the durability of the sealing body inserted through the pushing table, but also prevents the through hole for the pushing table through the partition plate. Lubricating oil leaks to the outside. _ (means to solve the problem)
本發明爲了達成上述目的具備有：自縫紉機框架前面窗 部部分的突出之推布台；連結在推布台的上下驅動機構及 儀I 前後驅動機構：設於該窗部的隔壁板；及同時配置成可在 隔壁板之後側上下移動而插通於推布台的第1密閉體，在 上下驅動機構及前後驅動機構之協動時將第1密閉體推壓 隔壁板側，其裝設於推布台端部的推布齒在縫紉機之縫製 部沿橢圓軌道運動的縫紉機之推布裝置，其特徵爲，至少 在夾持隔壁板的第1密閉體相反側配置1枚以上之第2密 閉體爲可上下移動’同時插通該第2密閉體於推布台，使 -6- 1325905 隔壁板兩側的密閉體伴隨著推布台沿橢圓軌道運動而交互 推壓隔壁板，藉此而始終屏蔽隔壁板之推布台用穿通孔。 尙，上述兩密閉體，以3字狀之密閉體導引件固定配置 在隔壁板之前後，將各別導引成可上下移動爲理想，又密 閉體導引件之下部開口於縫紉機框架爲理想。另在縫紉機 框架前面之窗部設置導引推布台橢圓運動的推布台導引件 ，將兩密閉體、隔壁板及密閉體導引件配置在推布台導引 件之面前側爲理想。 再者，構成兩密閉體構件以彈性體形成板狀所成爲理想 φ ，將第2密閉體以複數枚來構成爲更佳。 (作用） 依本發明，因夾持隔壁板各個以可上下移動地前後配置 第1密閉體及第2密閉體，故後側之第1密閉體在推布台 之前進時推壓隔壁板，前側之第2密閉體在推布台之後退 時推壓隔壁板。依此，始終屏蔽隔壁板推布台用穿通孔於縫 紉機框架之窗部。當以：3字狀之密閉體導引件固定配置在 隔壁板之前後，各別導引兩密閉體爲可上下移動，則產生 儀| 在推布台橢圓運動時的兩密閉體之帶石移動，限制爲如在 隔壁板之附近實行。又，將密閉體導引件之下部開口在縫紉 機框架內時，以密閉體所去除的潤滑油多半透過13字狀之 密閉體導引件內部環流於縫紉機框架內。再者，以彈性體 形成板狀所成構件構成爲兩密閉體，則提高了於兩密閉體 與所插通推布台之滑接部的密閉性，特別是以複數枚構成 第2密閉體時’可更加的防止潤滑油洩漏於第2密閉體面前 1325905 側。 (四）實施方式 以下，根據圖式說明本發明的實施形態。如第1圖〜第 3圖所示，推布裝置之推布台a由左右並設的主推布台7 及差動推布台8所成’推布台A之端部係突出於較縫紉機 框架1前面之窗部之面前》以旋轉自如地嵌插在主軸6偏 心部25的牙叉27係支持推布台A之中間二叉部7a、8a， 在主軸6旋轉時自牙叉27傳達上下移動於推布台A。裝設 在縫紉機框架1的軸30係藉由牙叉28支持推布台A後方 擊 的二叉部7a、7b。主推布台7藉由連桿31連結於曲柄32 ’差動推布台8藉由連桿23連結在曲柄24之滑件24a« 曲柄24、32係連動於主軸6之轉動而擺動，傳達前後移.動 給兩推布台7、8。 上所述構成乃表示公知推布裝置的上下驅動機構及前後 驅動機構之一部分者，以未圖示的驅動源轉動主軸6時兩 機構就協同動作，推布台A即沿第2圖所示橢圓軌跡R之 箭頭移動。並依此，裝設在推布台A推布齒9、10於縫紉 馨 機之縫製部送原布於箭頭F方向。 如第1圖、第3圖所示，配置推布台導引件5在縫紉機 框架1前面的窗部2，推布台導引件5的安裝部係以螺絲 13固定在縫紉機框架1。窗部2具有凹狀之缺口。又在推 布台導引件5之面前側配置有r/字狀密閉體導引件Π、12 及隔壁板4,該等構件以螺絲14固定在推布台導引件5的 安裝部。亦即設隔壁板4於縫紉機框架1的窗部2，密閉 -8- 1325905 體導引件11、12係在隔壁板4之前後予以固定配置。密閉 體導引件11前面形成有延伸於上下方向的槽lib，在槽lib 上部形成有沿送原布方向F穿通的矩形狀穿通孔na。在 隔壁板4上部同樣形成有沿送原布方向F穿通的矩形狀穿 通孔4a。穿通孔4a、11a形成爲較大於推布台A中途之縱 剖面矩形。密閉體導引件1 1之槽Π b亦即在隔壁板4後側 以上下滑動自如地嵌插第1密閉體1 5。構成第1密閉體！ 5 的構件由形成彈性體爲長方形板狀所成構件所構成，作爲 其例有聚氨酯。其上部形成有用來插通推布台A的矩形狀 $ 穿通孔1 5 a。 又，於本實施例雖在密閉體導引件1 1形成有矩形狀穿通孔 11a，但其形狀係如第5圖所示亦可爲凹狀之槽lie»又如 第6圖所示作爲密閉體導引件11之代替構造，使用推布台 導引件5之一部分亦即形成在推布台導引件5前面的槽5b ，亦可作成如可上下滑動地嵌插第1密閉體15在該槽5b 的構成。於本實施形態，雖係固定密閉體導引件1 1、1 2及 隔壁板4於推布台導引件5之一部分，但並不限定於此， 鲁 亦可固定在縫紉機框架1。 在密閉體導引件12之後面形成延伸於上下方的槽丨2b, 槽12b上部形成有沿送原布方向F穿通的穿通孔i2a。穿 通孔12a形成較大於推布台A中途之縱剖面矩形。槽i2b 以上下滑動自如地嵌插第2密閉體16、16。第2密閉體16 、16構成爲如前後連接與密閉體15同樣構件2枚。又第2 密閉體16' 16之上部形成有矩形穿通孔16a、i6a。亦即第 -9- 1325905 2密閉體16、16係夾持隔壁板4以可上下移動地配置於第 1密閉體1 5之相反側。 對推布台A端部的插通，依推布台導引件5'密閉體導 引件1 1之穿通孔1 1 a、第1密閉體i 5、隔壁板4之穿通孔 4a、第2密閉體16、16、密閉體導引件12穿通孔12a之順 序實行，該等之構件與推布台A之端部一起做位置於窗部 2之面前側。滑接推布台A之左右面在推布台導引件5的 引導面5a，構成第1密閉體15及第2密閉體16、16構件 之穿通孔15a、16a、16a，乃將推布台A之左右面滑接在 _ 推布台導引件5之引導面5a，構成第1密閉體15及第2 密閉體16、16構件的穿通孔15a、16a、16a，係彈性的邊 推壓推布台A予以滑接。亦即至少穿通孔15a、16a、16a 及其周邊係爲彈性的，穿通孔15a、16a、16a乃以可滑動 地密接推布台A。而在主推布台7之端部以螺絲（未圖示） 裝設主推布齒9’在差動推布齒8之端部以螺絲34裝設有 差動推布齒10。又推布齒9、10係配置在較密閉體導引件 12的面前。又於密閉體導引件11、12及隔壁板4,各上部 着 係以覆蓋縫紉機框架1上部的蓋3所覆蓋，各下部係面向 形成在窗部2面前側的縫紉機框架1之彎曲部la。尙密閉 體導引件11、12下部係開口於縫紉機框架1內，以第丨密 閉體15及第2密閉體16、16所去除潤滑油其主要乃透過 密閉體導引件11、12之內部環流於縫紉機框架1內。 以下說明如以上所構成縫紉機之推布機構之動作。以未 圖示之驅動源於第2圖轉動主軸6爲反時鐘方向，則推布 -10- 1325905 台A乃如上述沿箭頭橢圓軌跡R移動。此時第1密閉體15 係追隨推布台A的上下移動而上下移動槽lib內，但其前 後移動係依密閉體導引件1 1及隔壁板4所限制。同樣對於 第2密閉體16、16雖亦在槽12b內作上下移動，但第2密 閉體16、16之前後移動係由隔壁板4及第2密閉體12所 限制。又縫紉機驅動中係繼續供應潤滑油給縫紉機框架1 內。 於上述推布台A的橢圓運動，推布台A反送原布方向F 前進時，係如第4圖（a)所示第1密閉體1 5從隔壁板4後 方推壓而屏蔽隔壁板4之穿通孔4a。又推布台A沿送原布 方向F後退時，如第4圖（b)所示第2密閉體16從前方推 壓隔壁板4而屏蔽隔壁板4之穿通孔4a。亦即在推布台A 之運動時，以推布台A至少將兩密閉體1 5、1 6之一側推壓 隔壁板4，始終屏蔽隔壁板4之推布台用穿通孔4a。依如 此的密閉體之作用，透過隔壁板4之穿通孔4a可使流出面 前側的潤滑油量極爲微少者。又附著在推布台A的潤滑油 其大部分在第1密閉體1 5去除，所留下微小的潤滑油，亦 在推布台A前進時依第2密閉體16去除。 尙，以2枚構成第2密閉體16時，構成第2密閉體16 的構件，亦即變成連接聚氨酯於前後，可更加防止對第2 密閉體1 6面前側的漏油。流出於此隔壁板4面前側的微小 潤滑油，在推布台A後退時透過隔壁板4之穿通孔4a再次 退回到隔壁板4之後側，或傳隔壁板4之前面至下方，透 過縫紉機框架1之彎曲部la環流於縫紉機框架1內。 1325905 (發明之效果） 使隔壁板兩側的密閉體伴隨著推布台沿橢圓軌道運動而 交互推壓隔壁板，藉此而如以上說明，依本發明，係作成當 推布台沿著橢圓運動軌道進行前後動時，使隔壁板兩側的密 閉體交互推壓隔壁板’而始終屏蔽隔壁板之推布台用穿通 孔，故可以防止潤滑油自隔壁板推布台用穿通孔洩漏。此 外，推布台之橢圓運動時產生的兩密閉體之偕同移動，以U 字狀之密閉體導引件限制成在隔壁板之附近實行，所以可 提高兩密閉體的耐久性。又在縫紉機框架前面之窗部設置 鲁 導引推布台用的推布台導引件，同時配置兩密閉體、隔壁 板及上述密閉體導引件於推布台導引件之面前，成爲可充 分地供給潤滑油於推布台導引件，故可抑制推布台燒焦或 溫度上升，再者可容易伴隨劣化而進行兩密閉體的交換。 (五）圖式簡單說明 第1圖爲表示有關本發明縫紉機之推布裝置槪要部分斜 視圖。 第2圖爲同上裝置之槪略側視圖。 Φ 第3圖爲表示同上裝置之要部零件展開圖。 第4圖爲於同上裝置的運動時，表示密閉體作用狀態的 部分放大說明圖。 第5圖爲對同上裝置之密閉體導引件，表示別的實施例 之要部零件展開圖。 第6圖爲對同上裝置之密閉體導引件，表示再一別的實 施例之要部零件展開圖。 -12- 1325905 主要部分之代表符號說明 1 縫紉機框架 la 彎曲部 2 窗部 4 隔壁板 4 a ' 11a、12a 穿通孔 5 推布台導引件 7 主推布台 8 差動推布台 9 主推布齒 10 差動推布齒 11、12 密閉體導引件 lib、 12b 槽 15 第1密閉體 16 第2密閉體 A 推布台 R 橢圓運動軌跡In order to achieve the above object, the present invention includes: a push table that protrudes from a front window portion of a sewing machine frame; a vertical drive mechanism that is coupled to the push table; and a front and rear drive mechanism: a partition plate that is provided in the window; and The first sealing body that is inserted up and down on the rear side of the partition plate and inserted into the push table, and the first sealing body is pressed against the partition plate side when the vertical drive mechanism and the front and rear drive mechanisms cooperate with each other. a pushing device for a sewing machine that moves the sewing cloth at the end portion of the sewing machine along an elliptical orbit in the sewing machine, and is characterized in that at least one or more second sealing bodies are disposed on the opposite side of the first sealing body that sandwiches the partition plate. In order to move up and down', the second sealing body is inserted into the pushing table, so that the sealing body on both sides of the 6-13325905 partition plate pushes the partition plate interactively along the elliptical orbital movement, thereby always The through-hole is used for the push-pull table of the shielding partition plate.尙, the two sealed bodies are fixedly arranged in front of the partition plate by the three-shaped closed body guide, and are respectively guided to be movable up and down, and the lower part of the closed body guide is opened to the sewing machine frame. ideal. In addition, a pushing table guide for guiding the elliptical movement of the pushing table is arranged on the window portion in front of the sewing machine frame, and the two sealing bodies, the partition plate and the sealing body guiding member are arranged on the front side of the pushing table guiding member. . Further, it is preferable that the two closed body members are formed into a plate shape by an elastic body, and the second sealed body is formed in a plurality of pieces. (Operation) According to the present invention, since the first sealing body and the second sealing body are disposed in front and rear of each of the partitioning partition plates so as to be movable up and down, the first sealing body on the rear side pushes the partition wall plate before the pushing table. The second sealing body on the front side pushes the partition wall when the push table is retracted. Accordingly, the through-holes for the partition plate pushing table are always shielded from the window portion of the sewing machine frame. When the three-shaped closed body guide is fixedly disposed in front of the partition plate, and the two closed bodies are respectively movable up and down, the generator is placed on the two closed bodies when the push table is in an elliptical motion. The movement is limited to being carried out in the vicinity of the partition wall. Further, when the lower portion of the sealed body guide is opened in the sewing machine frame, the lubricating oil removed by the sealed body is mostly circulated through the inside of the sewing machine frame through the 13-shaped sealed body guide. Further, the member formed into a plate shape by the elastic body is configured as a two-sealed body, and the airtightness between the two sealed bodies and the sliding portion of the insertion guide is improved, and in particular, the second closed body is formed by a plurality of pieces. At the time, it can prevent the lubricating oil from leaking to the side of the 1325905 in front of the second sealing body. (4) Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. As shown in Fig. 1 to Fig. 3, the push table a of the push cloth device is formed by the main push table 7 and the differential push table 8 which are arranged side by side, and the end portion of the push table A protrudes from the sewing machine. The front fork of the frame 1 is rotatably inserted into the eccentric portion 25 of the main shaft 6 to support the intermediate two fork portions 7a, 8a of the push table A, and is transmitted from the dental fork 27 when the main shaft 6 rotates. Move up and down on the push table A. The shaft 30 attached to the sewing machine frame 1 supports the two fork portions 7a, 7b which are struck by the push table A by the dental fork 28. The main push table 7 is coupled to the crank 32 by the link 31. The differential push table 8 is coupled to the slider 24a of the crank 24 by the link 23. The cranks 24 and 32 are oscillated in conjunction with the rotation of the main shaft 6, and are conveyed before and after. Move. Move to the two push tables 7, 8. The above configuration is a part of the vertical drive mechanism and the front and rear drive mechanism of the known pusher device. When the spindle 6 is rotated by a drive source (not shown), the two mechanisms cooperate together, and the push table A is shown in FIG. The arrow of the elliptical trajectory R moves. Accordingly, the pushing cloths 9, 10, which are mounted on the push table A, are fed in the direction of the arrow F in the sewing portion of the sewing machine. As shown in Figs. 1 and 3, the window portion 2 on the front side of the sewing machine frame 1 is disposed, and the mounting portion of the push table guide 5 is fixed to the sewing machine frame 1 by screws 13. The window portion 2 has a concave cutout. Further, r-shaped sealing body guides Π, 12 and partition walls 4 are disposed on the front side of the table guide 5, and these members are fixed to the attachment portion of the staking guide 5 by screws 14. That is, the partition plate 4 is provided in the window portion 2 of the sewing machine frame 1, and the airtight -8-13325905 body guide members 11, 12 are fixedly disposed before the partition wall plate 4. A groove lib extending in the vertical direction is formed on the front surface of the sealed body guide 11, and a rectangular through hole na penetrating in the original direction F is formed in the upper portion of the groove lib. Similarly, a rectangular through hole 4a penetrating in the original sheet direction F is formed in the upper portion of the partition plate 4. The through holes 4a, 11a are formed to be larger than the longitudinal section rectangle in the middle of the push table A. The groove b of the sealed body guide 1 1 is slidably inserted into the first sealing body 15 from the rear side of the partition plate 4 . Form the first closed body! The member of 5 is composed of a member in which the elastic body is formed into a rectangular plate shape, and as an example thereof, polyurethane is used. A rectangular-shaped through-hole 1 5 a for inserting the push table A is formed in the upper portion thereof. Further, in the present embodiment, the rectangular body through hole 11a is formed in the sealed body guide member 1, but the shape thereof may be a concave groove lie as shown in Fig. 5 and as shown in Fig. 6 In place of the closed body guide member 11, a portion of the push table guide 5, that is, a groove 5b formed in front of the push table guide 5, may be used, and the first closed body may be inserted so as to be slidable up and down. 15 is in the configuration of the groove 5b. In the present embodiment, the sealed body guides 1 1 and 1 2 and the partition wall 4 are fixed to one of the push table guides 5, but the present invention is not limited thereto, and the fastener frame 1 may be fixed to the sewing machine frame 1. A groove 2b extending upward and downward is formed on the rear surface of the sealed body guide 12, and a through hole i2a penetrating in the original direction F is formed in the upper portion of the groove 12b. The through hole 12a is formed in a rectangular shape which is larger than the longitudinal section of the push table A. The second sealing bodies 16 and 16 are slidably inserted into the groove i2b. The second sealing bodies 16 and 16 are configured to be connected to the same structure as the sealing body 15 as in the front and rear. Further, rectangular through holes 16a and i6a are formed in the upper portion of the second sealed body 16'16. That is, the -9- 1325905 2 sealed body 16 and 16 are sandwiched between the partition plates 4 so as to be movable up and down on the opposite side of the first sealed body 15 . The insertion of the end portion of the push table A is guided by the push-pull guide 5', the through-hole 1 1 a of the sealed body guide 1 1 , the first sealed body i 5 , and the through-hole 4 a of the partition plate 4 The sealing members 16 and 16 and the sealing body guide 12 are inserted through the holes 12a in sequence, and the members are positioned at the front side of the window portion 2 together with the end portions of the pushing table A. The left and right surfaces of the sliding splicing table A are on the guide surface 5a of the squeegee guide 5, and constitute the through holes 15a, 16a, and 16a of the first sealing body 15 and the second sealing bodies 16 and 16 The left and right surfaces of the table A are slidably attached to the guide surface 5a of the yoke table guide 5, and constitute the through holes 15a, 16a, and 16a of the first sealing body 15 and the second sealing bodies 16 and 16, and are elastically pushed. Press the cloth table A to slide it. That is, at least the through holes 15a, 16a, 16a and their periphery are elastic, and the through holes 15a, 16a, 16a are slidably adhered to the push table A. On the end of the main push table 7, the main pusher teeth 9' are attached by screws (not shown), and the differential pusher teeth 10 are attached to the end portions of the differential pusher teeth 8 by screws 34. Further, the pushing teeth 9, 10 are arranged in front of the relatively closed body guide 12. Further, the sealed body guides 11, 12 and the partition wall 4 are covered with a cover 3 covering the upper portion of the sewing machine frame 1, and each lower portion faces the curved portion of the sewing machine frame 1 formed on the front side of the window portion 2 . The lower portion of the hermetic body guides 11 and 12 is opened in the sewing machine frame 1, and the lubricating oil is removed by the first sealing body 15 and the second sealing body 16, 16 mainly through the inside of the sealing body guiding members 11, 12. The circulation is inside the sewing machine frame 1. The operation of the push mechanism of the sewing machine constructed as described above will be described below. When the drive shaft (not shown) rotates the main shaft 6 in the counterclockwise direction in Fig. 2, the push cloth -10- 1325905 table A moves along the elliptical trajectory R as described above. At this time, the first sealing body 15 moves up and down the groove lib following the vertical movement of the cloth table A. However, the front and rear movements are restricted by the sealing body guide 1 1 and the partition plate 4. Similarly, the second sealed bodies 16 and 16 are also moved up and down in the groove 12b. However, the movement of the second sealed bodies 16 and 16 before and after is restricted by the partition plate 4 and the second sealed body 12. In the sewing machine drive, the lubricant is continuously supplied to the sewing machine frame 1. When the push table A is reversely fed in the original cloth direction F, the first sealed body 15 is pressed from the rear of the partition plate 4 to shield the partition plate as shown in Fig. 4(a). 4 through the through hole 4a. When the push table A is retracted in the original fabric direction F, the second sealing body 16 presses the partition plate 4 from the front as shown in Fig. 4(b) to shield the through hole 4a of the partition plate 4. That is, at the time of the movement of the push table A, at least one of the two closed bodies 15 and 16 is pushed against the partition wall 4 by the push table A, and the push plate insertion hole 4a of the partition plate 4 is always shielded. According to the action of the sealing body as described above, the amount of lubricating oil on the front side of the outflow surface can be made extremely small by the through hole 4a of the partition wall 4. Further, the lubricating oil adhering to the push table A is mostly removed in the first sealed body 15 to leave a minute amount of lubricating oil, which is also removed by the second sealed body 16 when the push table A advances. When the second sealing body 16 is formed of two pieces, the member constituting the second sealing body 16, that is, the front and rear sides of the polyurethane are connected, and the oil leakage to the front side of the second sealing body 16 can be further prevented. The minute lubricating oil flowing out of the front side of the partition panel 4 is again retracted to the rear side of the partition panel 4 through the through-hole 4a of the partition panel 4 when the push-pull table A is retracted, or the front surface of the partition panel 4 is lowered to the lower side through the sewing machine frame. The curved portion la of 1 is circulated in the sewing machine frame 1. 1325905 (Effect of the invention) The sealing bodies on both sides of the partition plate are alternately pressed against the partition plate along the movement of the push table along the elliptical orbit, whereby as described above, according to the present invention, the push table is formed along the ellipse When the moving track is moved forward and backward, the sealing bodies on both sides of the partitioning plate are alternately pressed against the partitioning plate', and the through-hole for pushing the table of the partitioning plate is always shielded, so that the lubricating oil can be prevented from leaking through the through-hole of the partitioning plate. Further, the movement of the two sealed bodies which are generated during the elliptical motion of the push table is restricted by the U-shaped closed body guide to be carried out in the vicinity of the partition plate, so that the durability of the two sealed bodies can be improved. Further, in the window portion in front of the sewing machine frame, a pusher table guide for the guide frame is provided, and at the same time, the two sealed bodies, the partition plate and the closed body guide are arranged in front of the push table guide. Since the lubricating oil can be sufficiently supplied to the push table guide, the burn-in of the push table or the temperature rise can be suppressed, and the exchange of the two sealed bodies can be easily performed with deterioration. (5) Brief description of the drawings Fig. 1 is a perspective view showing a schematic portion of the pusher device of the sewing machine of the present invention. Figure 2 is a schematic side view of the same device. Φ Fig. 3 is a development view showing the main parts of the same device. Fig. 4 is a partially enlarged explanatory view showing the state of action of the sealed body when the same device is moved. Fig. 5 is a view showing the development of the main part of the other embodiment of the sealing body guide of the same embodiment. Fig. 6 is a view showing the unfolding body guide of the same apparatus, showing the development of the main parts of still another embodiment. -12- 1325905 Description of the main parts: 1 Sewing machine frame la Bending part 2 Window part 4 Partition board 4 a ' 11a, 12a Through hole 5 Push table guide 7 Main push table 8 Differential push table 9 Main push cloth Tooth 10 differential pusher teeth 11, 12 closed body guides lib, 12b slot 15 first closed body 16 second closed body A push table R elliptical motion track