M366556 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種縫紉機梭殼開啟器， w 凡知一種用於縫 紉機以驅動梭殼使線通道開啟或關閉的裝置。 【先前技術】 習用的開啟器驅動方式通常是在擺梭傳糾上設有一個 包含有連桿及支軸等零件的偏轉機構來驅動，而___ 道的目的；但由於該偏轉機構轉速同等於擺梭的轉速，是傳動 軸的兩倍’開啟器的驅動器會有兩次循環，而打開線通道只需 要-個循環’有-次是沒有必要的，所以零件容易損壞 音較大。 為解決上述問題，改良的縫匆機如中國已公開的發明專利 「縫_」，其申請號為·3_咖3，該縫匆機具有一上 方的臂部，-垂直的機架和—個下方殼體狀的基板，且臂部中 支承有-臂軸。在基板内支承有—_直的擺梭—擺梭傳動 軸通過-個錐齒輪傳動裝置由—傳動軸驅動，傳動軸又通過一 個齒帶傳較置由上述臂_動，且紐傳_的速度為傳動 麵兩倍。在擺梭中支承有一可相對於擺梭自由轉動的梭殼， 。喊具有肖上犬出的支桿，可被保持在針孔板下側的兩個阻 ‘凸塊之間。§支桿在兩個阻擋凸塊的中間位置時支桿兩侧 、氣隙和上方的軋隙即形成一條連續的線通道。而打開線通道 的方式疋利用-開啟器的開啟器桿來貼靠在梭殼上的開啟器 3 M366556 凸塊，使梭殼進行與擺梭轉動方向相反的轉動，使支桿保持在 兩個阻擋凸塊之間。當開啟器桿未貼靠在開啟器凸塊來阻擋梭 殼時，梭殼即與擺梭朝同一方向轉動，支桿即與其中一阻擋凸 塊靠接，而關閉線通道。其梭殼開啟器的動作是藉由一結合於 開啟器驅動軸的接觸桿與一結合於傳動軸的軸向曲面盤件來 驅動。 ⑮上述的結構錢聰熟向曲麵件的鋪形式為滑 動接觸’亦不利於裝設滾輪，磨耗較大，且接觸桿的運動為擺 動方式’佔用較大的空間。因此本創作即是針對上述問題加以 解決。 【新型内容】 本創作之主要目的，即在提供—種縫_梭殼開啟器， 藉由凸輪帶動齒條與齒輪响合傳動，將傳動軸的連續旋轉運 藝 轉自凸輪輪緣_狀直接轉換絲彳趙動紗，來開啟或 關閉線通道’以省去習知驅動機構的連桿及擺臂等零件可 節省空間，縮小體積。 ’ 本創作之另—目的，即在提供_種_機梭殼開啟器， • ^购_力直接崎動贿舰祕繼加賴啟器桿的 她如此可減少零件磨損，降低噪音，且能為線通道提供 一個更合理的時序匹配。 為達上述目的，本創作縫紉機梭殼開啟器係設於一縫紉 機的旋梭座上，該旋梭座中配置有一傳動軸該梭殼開啟 4 M366556 器包含： 一凸輪，固定於該傳動軸上，其輪緣設有控制時序的凸 部。 一具有齒部的齒條，活動支撐於該旋梭座，以一接觸端 抵接於該凸輪的輪緣。 一上端具有一開啟器桿的樞軸，樞接於該旋梭座，該樞 軸上設有一與該齒條齒部嚙合的齒輪，枢軸上並套接一扭簧。 當齒條抵接於凸輪凸部外的其他位置時，開啟器桿係離 開梭破上的開啟器凸塊，此時，梭殼可與支承梭殼的旋梭一 起轉動，直到梭殼的支桿抵接於針孔板的第一阻擋塊上，而 關閉線通道。 當傳動轴轉動使凸輪的凸部與齒條的接觸端接觸時凸 部推動齒條往外移動，齒條驅動與其嚙合的齒輪轉動，使樞 轴順時針轉動，而驅動開啟器桿向梭殼方向擺動靠接於梭殼 的開啟器凸塊，使梭殼沿與旋梭轉動方向相反的方向轉動。 此時’支桿離開第-阻擋塊，關啟線通道，且扭簧被帶動 扭轉。當凸輪繼雜動使凸雜職條賴綱時，藉由扭 簧使齒輪及_反向轉，讓絲復位，並制啟器桿離開 開啟器凸塊。此時，梭殼可與旋梭-起轉動，直到支桿抵接 於第一阻擋塊上，再次關閉線通道。 本創作之其他特點及具體實施例可於以下配合附圖之詳 細說明中，進一步瞭解。 5 M366556 因此開啟器的速度只有旋梭9的—半，如此可降低磨損，降 低噪音’且缺料道提供—個衫理_序匹配。 以上所述者，僅為本創作之較佳實施例，當不能用以限 定本創作可實施之範圍，凡習於本業之人士所明顯可作變化 與修都’皆應視為不，障離本創作之實質内容。 【圖式簡單說明】 第1圖係為本創作的立體示意圖。 • 第2圖係為本創作用於縫初機的裝設位置示意圖。 第3圖係為本創作由第2圖al方向看去的平面示意圖。 第4圖係為本創作由第2_方向看去的俯視圖。 【主要元件符號說明】M366556 V. New description: [New technical field] This creation is about a sewing machine bobbin opener, w. A device for sewing machine to drive the bobbin case to open or close the wire channel. [Prior Art] The conventional opener drive mode is usually provided with a deflection mechanism including a connecting rod and a fulcrum on the shuttle transmission and correction, and the purpose of the ___ track; but since the deflection mechanism rotates at the same speed The speed of the shuttle is twice that of the drive shaft. The actuator of the opener will have two cycles, and the opening of the line channel requires only one cycle. The presence-time is unnecessary, so the parts are easily damaged. In order to solve the above problems, the improved seam rushing machine is as disclosed in the Chinese invention patent "seam _", the application number is · 3_ coffee 3, the seam rushing machine has an upper arm, a vertical frame and - A lower shell-shaped substrate is supported, and an arm shaft is supported in the arm. Supported in the substrate is a straight shuttle - the shuttle drive shaft is driven by a drive shaft through a bevel gear transmission, and the drive shaft is transmitted through a tooth belt to be moved by the arm. The speed is twice the speed of the drive. A bobbin case that is free to rotate relative to the shuttle is supported in the shuttle. Shouting the struts with the dogs out can be held between the two resists on the underside of the pinhole. § The struts form a continuous line channel on both sides of the struts, the air gap and the upper nip when the struts are in the middle of the two blocking lobes. The way to open the line channel is to use the opener lever of the opener to abut the opener 3 M366556 bump on the bobbin case, so that the bobbin case rotates in the opposite direction to the swing of the shuttle, so that the strut remains in two Block between the bumps. When the opener lever does not abut against the opener lug to block the bobbin case, the bobbin case rotates in the same direction as the shuttle, and the strut abuts against one of the blocking tabs to close the line passage. The bobbin case opener is actuated by a contact rod coupled to the opener drive shaft and an axial curved disk member coupled to the drive shaft. 15 The structure of the above-mentioned structure Qian Cong cooked to the curved piece is in the form of sliding contact, which is not conducive to the installation of the roller, the wear is large, and the movement of the contact rod is a swinging mode occupies a large space. Therefore, this creation is to solve the above problems. [New content] The main purpose of this creation is to provide a kind of sewing _ bobbin opener, which can drive the continuous rotation of the drive shaft from the cam rim _ shape by the cam to drive the rack and the gear to rotate. The silk thread is used to open or close the wire channel to save space and reduce the size by eliminating the need for the connecting rod and swing arm of the conventional drive mechanism. 'The other purpose of this creation is to provide _ kind of _ bobbin case opener, ^ ^ _ _ force directly smash the brigade secrets and add the singer to the pole so that it can reduce parts wear, reduce noise, and can be the line The channel provides a more reasonable timing match. In order to achieve the above object, the bobbin case opener of the sewing machine is set on a hook base of a sewing machine, and a bobbin case is disposed in the bungee base. The bobbin case is opened. The M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M The rim is provided with a convex portion for controlling timing. A rack having a tooth portion is movably supported by the hook base and abuts against a rim of the cam at a contact end. A pivot shaft having an opener lever is pivotally connected to the rotary bobbin, and the pivot shaft is provided with a gear that meshes with the rack tooth portion, and pivots and sleeves a torsion spring. When the rack abuts at other positions outside the cam protrusion, the opener rod is separated from the opener bump of the bobbin. At this time, the bobbin case can be rotated together with the hook supporting the bobbin case until the bobbin case is supported. The rod abuts against the first block of the pinhole plate and closes the line channel. When the driving shaft rotates to make the convex portion of the cam contact the contact end of the rack, the convex portion pushes the rack to move outward, and the rack drives the gear that meshes with it to rotate, so that the pivot shaft rotates clockwise, and drives the opener rod toward the bobbin case The swinger abuts against the opener boss of the bobbin case to rotate the bobbin case in a direction opposite to the direction of rotation of the hook. At this time, the struts are separated from the first block, the line passage is closed, and the torsion spring is driven to twist. When the cam is followed by the clutter, the gear and the _ are reversed by the torsion spring, the wire is reset, and the starter lever is moved away from the opener bump. At this time, the bobbin case can be rotated with the hook until the struts abut against the first blocking block, and the line passage is closed again. Other features and specific embodiments of the present invention can be further understood from the following detailed description in conjunction with the accompanying drawings. 5 M366556 Therefore, the speed of the opener is only half of the hook 9, which can reduce wear and reduce noise, and the lack of material provides a match. The above is only the preferred embodiment of the present invention. When it is not used to limit the scope of the creation of the creation, it is obvious that those who are in the profession can make changes and repairs. The substance of this creation. [Simple description of the figure] The first picture is a three-dimensional diagram of the creation. • Figure 2 is a schematic diagram of the installation position for the original sewing machine. Figure 3 is a schematic plan view of the creation as seen from the direction of the second diagram of Figure 2. Figure 4 is a top view of the creation from the 2nd direction. [Main component symbol description]
1、凸輪 2、傳動轴 3、基板 4、旋梭座 5、齒條 6、結合件 7、樞軸 8、梭殼 9、旋梭 10、凸部 30、針孔板 31、阻擋塊 50、齒部 51、平面 52、接觸端 61、結合孔 62、插孔 63、容置孔 64、插銷 7〇、開啟器桿 71、齒輪 72、轉動板 8 M366556 73、固定件 74、 75、卡槽 76、 81、凸塊 82、 520、滾輪 720 730、固定孔 扭簧 卡簧 支桿 、勾孔1. Cam 2, drive shaft 3, base plate 4, hook base 5, rack 6, coupling member 7, pivot 8, bobbin case 9, hook 10, projection 30, pinhole plate 31, block 50, The tooth portion 51, the plane 52, the contact end 61, the coupling hole 62, the insertion hole 63, the receiving hole 64, the pin 7〇, the opener rod 71, the gear 72, the rotating plate 8 M366556 73, the fixing member 74, 75, the card slot 76, 81, bumps 82, 520, roller 720 730, fixed hole torsion spring circlip rod, hook hole