JP4215744B2 - Cylinder bed sewing machine - Google Patents

Cylinder bed sewing machine Download PDF

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JP4215744B2
JP4215744B2 JP2005139395A JP2005139395A JP4215744B2 JP 4215744 B2 JP4215744 B2 JP 4215744B2 JP 2005139395 A JP2005139395 A JP 2005139395A JP 2005139395 A JP2005139395 A JP 2005139395A JP 4215744 B2 JP4215744 B2 JP 4215744B2
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needle
cylinder bed
cloth
feed
looper
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JP2005224636A (en
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裕親 向井
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ペガサスミシン製造株式会社
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Description

本発明は、ベビーウエアの袖口の伏せ縫製など極細の筒状物の縫製に適したシリンダベッドミシンに関する。   The present invention relates to a cylinder bed sewing machine that is suitable for sewing an extremely thin cylindrical object such as a cuff stitching for baby wear.

従来から、小径の筒状物の縫製を行うには、ミシンベッドの縫製部を細い筒状のフリーアームにしたミシン、いわゆるシリンダベッドミシンが用いられている。ところが、そのフリーアームの細さはそのフリーアーム内に収容される布送り機構の大きさに限定されるので、極細の筒状布地をフリーアームにセットすることが困難であり、その場合、やむなく布送り方向をフリーアームの長手方向としたミシンを代用していた。だが、この代用のミシンでもフリーアームに極細の筒状布地をセットすることができず、その布地の筒の略中心線が斜めの状態で該布地を仕掛けて縫製していた。そのため、縫製作業の能率が悪くなるとともに熟練が必要とされていた。   Conventionally, in order to sew a small-diameter cylindrical object, a so-called cylinder bed sewing machine in which a sewing part of a sewing machine bed is a thin cylindrical free arm has been used. However, since the thinness of the free arm is limited to the size of the cloth feed mechanism accommodated in the free arm, it is difficult to set an extremely thin tubular cloth on the free arm. A sewing machine having the cloth feeding direction as the longitudinal direction of the free arm was used instead. However, even with this substitute sewing machine, it was not possible to set an ultra-thin cylindrical cloth on the free arm, and the cloth was sewn with the cloth centered in a state where the substantially center line of the cloth cylinder was slanted. For this reason, the efficiency of the sewing work is deteriorated and skill is required.

従って、本発明の課題は、極細の筒状物の縫製が容易にできるシリンダベッドミシンを提供することにある。   Accordingly, an object of the present invention is to provide a cylinder bed sewing machine that can easily sew an extremely thin cylindrical object.

本願請求項1に係る発明は、シリンダベッド上部に取り付けられた針孔と針板爪を有する針板と、上下に往復運動する針棒の先端に取り付けられた針を左右に横切って運動し該針との協働で二重環縫い目を形成するルーパと該針孔の針落を貫通する針先端を前方より支持する前針受け及び該針先端を後方より支持する後針受けとをシリンダベッド部内に備え、そのシリンダベッド部の上方に該針板との間に布地を挟んで押圧する押え金と、シリンダベッド円周方向で布地を送る布送り手段とを備えたシリンダベッドミシンにおいて、布送り手段が、針を前後にまたいで形成され、シリンダベッド部にセットされた布地に係合して該布地を布送り方向に送る送り部材からなり、前針受けが揺動軸の腕に連結されたルーパ軸の取付け軸台にルーパと共に取り付けられ、後針受けがシリンダベッドの内壁に固定され、前記シリンダベッド部内に下送り歯を有さず、前記針板下送り歯が挿通される長手角孔を有しないことを特徴とする。 The invention according to claim 1 of the present invention moves a needle plate having a needle hole and a needle plate claw attached to the upper part of the cylinder bed, and a needle attached to the tip of a needle bar that reciprocates up and down to move left and right. A cylinder bed comprising a looper that forms a double ring seam in cooperation with the needle, a front needle receiver that supports the needle tip penetrating the needle drop of the needle hole from the front, and a rear needle holder that supports the needle tip from the rear. In a cylinder bed sewing machine comprising a presser foot that is provided in a section and presses a cloth between the needle plate and a cloth feed means for feeding the cloth in the circumferential direction of the cylinder bed. The feeding means consists of a feeding member that is formed across the needle and engages with the fabric set in the cylinder bed portion and feeds the fabric in the fabric feeding direction, and the front needle receiver is connected to the arm of the swing shaft Looper on the mounting shaft base of the mounted looper shaft Attached together, the rear needle receiving is fixed to the inner wall of the cylinder bed, and wherein not have a lower feed teeth in the cylinder bed, does not have a longitudinal angle hole lower feed teeth is inserted in the needle plate To do.

本願請求項2に係る発明は、シリンダベッド上部に取り付けられた針孔と針板爪を有する針板と、上下に往復運動する針棒の先端に取り付けられた針を左右に横切って運動し該針との協働で二重環縫い目を形成するルーパと該針孔の針落を貫通する針先端を前方より支持する前針受け及び該針先端を後方より支持する後針受けとをシリンダベッド部内に備え、そのシリンダベッド部の上方に該針板との間に布地を挟んで押圧する押え金と、シリンダベッド円周方向で布地を送る布送り手段とを備えたシリンダベッドミシンにおいて、押え金が針開口孔と該針開口孔の手前に配置された送り歯溝とを有し、布送り手段が、押え金の送り歯溝を間欠的に貫通して針板の針落の手前でシリンダベッド部にセットされた布地を布送り方向に送る差動上送り歯と、該差動上送り歯の送り運動と協調して間欠回転し、針後部でシリンダベッド部にセットされた布地を布送り方向に送る主送りローラとから成り、前針受けが揺動軸の腕に連結されたルーパ軸の取付け軸台にルーパと共に取り付けられ、後針受けがシリンダベッドの内壁に固定され、前記シリンダベッド部内に下送り歯を有さず、前記針板に下送り歯が挿通される長手角孔を有しないことを特徴とする。 The invention according to claim 2 of the present invention moves a needle plate having a needle hole and a needle plate claw attached to the upper part of the cylinder bed, and a needle attached to the tip of a needle bar that reciprocates up and down to move left and right. A cylinder bed comprising a looper that forms a double ring seam in cooperation with the needle, a front needle receiver that supports the needle tip penetrating the needle drop of the needle hole from the front, and a rear needle holder that supports the needle tip from the rear. In a cylinder bed sewing machine provided with a presser foot that is provided in the section and presses the cloth between the needle plate above the cylinder bed section and a cloth feeding means that feeds the cloth in the circumferential direction of the cylinder bed. The gold has a needle opening hole and a feed dog groove disposed in front of the needle opening hole, and the cloth feeding means intermittently penetrates the feed dog groove of the presser foot and before the needle drop of the needle plate. differential on sending the set fabrics in the cylinder bed in the cloth feeding direction And teeth Ri, intermittently rotating in coordination with the feed movement of the differential on feed dog, the needle tail portion in the fabric set in the cylinder bed consists of a main feed roller for sending the cloth feeding direction, before needle receiving is rocking Attached with a looper to the mounting shaft base of the looper shaft connected to the arm of the moving shaft, the rear needle holder is fixed to the inner wall of the cylinder bed, has no lower feed dog in the cylinder bed portion, and is lowered to the needle plate characterized in that it does not have a longitudinal rectangular holes which feed dog is inserted.

本願発明によれば、長手角孔を有しない針板が布地を下方より確実に支持し、布送り手段がシリンダベッド部にセットされた布地に係合して布地をシリンダベッド円周方向に送るよう構成したことで、シリンダベッド部の径を下送り歯を含む送り機構に制限されない極細にできるとともに、極細のシリンダベッド部であっても布地のセットないし送りを確実にでき、極細の筒状布地の縫製を能率よく行うことができる。 According to the present invention, the longitudinal angle hole having no needle plate fabric securely supported from below, engages the fabric cloth feed means is set to the cylinder bed by the fabric on the cylinder bed circumferentially By being configured to feed, the diameter of the cylinder bed part can be made extremely fine without being restricted by the feed mechanism including the lower feed dog, and even in the extremely fine cylinder bed part, the cloth can be set or fed reliably, and the ultra-fine cylinder Can be performed efficiently.

特に、布送り手段の差動送り歯および主送りローラとを針落を挟んで前後に配置し、針落の手前に配置された差動送り歯を押え金の送り溝に貫通させ、該差動上送り歯の送り運動と協調して主送りローラを間欠回転することで、シリンダベッド部にセットされた筒状布地の送りを確実に行うことができる。また、針先端を、ルーパの取付け台に取り付けられた前針受けにより前方より支持し、シリンダベッド内壁に取り付けられた後針受けにより後方より支持するように構成することで、シリンダベッド部の径を極細にできる。 In particular, the differential feed dog and the main feed roller of the cloth feed means are arranged on the front and rear sides of the needle drop, the differential feed dog arranged before the needle drop is passed through the feed groove of the presser foot, and the difference By intermittently rotating the main feed roller in cooperation with the feed movement of the moving feed dog, the cylindrical fabric set on the cylinder bed can be reliably fed. In addition, the diameter of the cylinder bed is configured so that the needle tip is supported from the front by a front needle receiver attached to the looper mounting base and supported from the rear by a rear needle receiver attached to the inner wall of the cylinder bed. Can be made very fine.

以下、本発明の実施の形態を図面に基づいて説明する。図1は本発明を適用させたシリンダベッドミシンの要部を示す部分斜視図である。シリンダベッド部1の上面には針板2が設けられている。針板2の上面とシリンダベッド部1の上面とは同一平面上にある。針板2は、図2に示すように、布送り方向Fと直交する方向に沿って形成されたスリット3より針落4a,4bまで延びる門形状の針孔5と、針孔5に囲まれ先端が布送り方向Fに延びる舌片6(針板爪)とを有する。針板2は、後部に傾斜面7を有し、下送り歯が挿通する長手角孔を有していない。なお、本実施の形態では針板の後部に傾斜面を設けていたが、これに限定されるわけでなく、針板をフラットにし、針板後部に位置するシリンダベッド部に後述する主送りローラが押圧する傾斜面を設けるようにしてもよい。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partial perspective view showing a main part of a cylinder bed sewing machine to which the present invention is applied. A needle plate 2 is provided on the upper surface of the cylinder bed 1. The upper surface of the needle plate 2 and the upper surface of the cylinder bed 1 are on the same plane. As shown in FIG. 2, the needle plate 2 is surrounded by a needle-like needle hole 5 extending from the slit 3 formed along the direction orthogonal to the cloth feeding direction F to the needle drops 4 a and 4 b, and the needle hole 5. And a tongue piece 6 (needle plate claw) extending in the cloth feeding direction F. The throat plate 2 has an inclined surface 7 at the rear, and does not have a longitudinal square hole through which the lower feed dog is inserted. In the present embodiment, the inclined surface is provided at the rear portion of the needle plate. However, the present invention is not limited to this, and the main feed roller, which will be described later, is formed on a cylinder bed portion that is flat on the needle plate and located at the rear portion of the needle plate. You may make it provide the inclined surface which presses.

シリンダベッド部1内にはルーパ8と前針受け9と後針受け10とが配置されている。図4に示すように、ルーパ8は揺動軸11の腕12に連結されたルーパ軸13の取付け軸台14に取り付けられ、揺動軸11はロッド15,16を介して主軸Sに連結されている。主軸Sが回転すると、ルーパ8は後述する針を左右に横切って運動する。ルーパ8の先端にはルーパ糸8aが挿通されている。前針受け9は、取付け軸台14に取り付けられ、ルーパ8に略平行に配置されている。後針受け10はシリンダベッド部1の内壁下面1aにネジ10aで取り付けられている。ルーパ8が左方に進出する時、前針受け9は針を前方より支持し、後針受け10は針を後方より支持する。なお、本実施の形態では後針受けをシリンダベッド部の内壁下面に取り付けていたが、これに限定されるわけでなく、後針受けをシリンダベッド部の内壁側面に取り付けてもよい。   In the cylinder bed 1, a looper 8, a front needle receiver 9 and a rear needle receiver 10 are arranged. As shown in FIG. 4, the looper 8 is attached to the mounting shaft base 14 of the looper shaft 13 connected to the arm 12 of the swing shaft 11, and the swing shaft 11 is connected to the main shaft S via rods 15 and 16. ing. When the main shaft S rotates, the looper 8 moves across a needle to be described later from side to side. A looper thread 8 a is inserted through the tip of the looper 8. The front needle receiver 9 is attached to the mounting shaft base 14 and is disposed substantially parallel to the looper 8. The rear needle receiver 10 is attached to the lower surface 1a of the inner wall of the cylinder bed 1 with screws 10a. When the looper 8 advances to the left, the front needle receiver 9 supports the needle from the front, and the rear needle receiver 10 supports the needle from the rear. In the present embodiment, the rear needle holder is attached to the lower surface of the inner wall of the cylinder bed portion. However, the present invention is not limited to this, and the rear needle holder may be attached to the inner wall side surface of the cylinder bed portion.

シリンダベッド部1の上方、即ちミシンアームAには、左右に並設された2本の針17,18と、布地を針板2に押圧する押え金19と、セットされた布地を布送り方向Fに送る布送り手段20とが配置されている。各針17,18は針棒21の先端に固定された針株22に取り付けられ、針棒21はベッド本体部Bで全回転する主軸S(図4参照)に連動して上下に往復運動する。図4に示すように、針先端には針糸17a,18aが挿通されている。針棒21の降下時に各針17,18先端は針孔5の針落4a,4bを貫通する。主軸Sが一方向に全回転すると、ルーパ8は針17,18と協働する。この協働によって、針17,18先端に夫々挿通された針糸17a,18aとルーパ8の先端に挿通されたルーパ糸8aとが二重環縫い目となって布地に形成される。   Above the cylinder bed 1, that is, on the sewing machine arm A, two needles 17 and 18 arranged side by side, a presser foot 19 for pressing the fabric against the needle plate 2, and the set fabric in the cloth feeding direction A cloth feeding means 20 for feeding to F is arranged. The needles 17 and 18 are attached to a needle stock 22 fixed to the tip of a needle bar 21, and the needle bar 21 reciprocates up and down in conjunction with a main shaft S (see FIG. 4) that rotates fully in the bed main body B. . As shown in FIG. 4, needle threads 17a and 18a are inserted through the needle tips. When the needle bar 21 is lowered, the tips of the needles 17 and 18 penetrate the needle drops 4 a and 4 b of the needle hole 5. When the main shaft S fully rotates in one direction, the looper 8 cooperates with the needles 17 and 18. By this cooperation, the needle threads 17a and 18a inserted through the tips of the needles 17 and 18 and the looper thread 8a inserted through the tip of the looper 8 are formed on the fabric as double ring stitches.

押え金19は、ミシンアームAのブッシュ23にスライド可能に支持された押え棒24の下端に取り付けられ、針17,18貫通用の針開口孔(図示せず)および該針開口孔の手前に配置された送り歯溝19aを有する。押え棒24はミシンアーム部A内に配置されたスプリング機構(図示せず)により押え金19を針板2に押圧し、布地への押圧は針板2の傾斜面7直前まで行われる。また、ミシンアームAには足踏みペダル等の動作により押え金19を上昇させる押え揚げ機構(図示せず)が備えられている。   The presser foot 19 is attached to a lower end of a presser bar 24 slidably supported by a bush 23 of the sewing machine arm A, and has a needle opening hole (not shown) for penetrating the needles 17 and 18 and in front of the needle opening hole. It has the feed dog groove 19a arranged. The presser bar 24 presses the presser foot 19 against the throat plate 2 by a spring mechanism (not shown) disposed in the sewing machine arm portion A, and the pressing to the fabric is performed until just before the inclined surface 7 of the throat plate 2. Further, the sewing machine arm A is provided with a presser foot lifting mechanism (not shown) for raising the presser foot 19 by the operation of a foot pedal or the like.

布送り手段20は、シリンダベッド部1にセットされた布地の表側に係合して該布地を布送り方向Fに送る主送りローラ25と差動送り歯26を備えている。主送りローラ25は、針後部に近接して配置され、ギヤ25aを有する。ギヤ25aはベルト27を介してギヤ28に連結され、ギヤ28はユニット29の出力軸29aに取り付けられたスプライン31にユニバーサルジョイント30を介して連結されている。このユニット29は、主軸Sの回転を駆動源とし、主軸の連続回転を間欠回転に変換する。主軸Sが回転すると、ユニット29の出力軸29aに取り付けられたスプライン31が一方向に間欠的に回転する。スプライン31の間欠回転はユニバーサルジョイント30を介してギヤ28に伝動され、ギヤ28に伝動された間欠回転はベルト27を介して主送りローラ25のギヤ25aに伝動される。すなわち、主軸Sの回転によって主送りローラ25が一方向に間欠回転し、主送りローラ25の間欠回転が布地に伝達される。   The cloth feed means 20 includes a main feed roller 25 and a differential feed tooth 26 which are engaged with the front side of the cloth set on the cylinder bed 1 and feed the cloth in the cloth feed direction F. The main feed roller 25 is disposed close to the rear portion of the needle and has a gear 25a. The gear 25 a is connected to the gear 28 via the belt 27, and the gear 28 is connected to the spline 31 attached to the output shaft 29 a of the unit 29 via the universal joint 30. The unit 29 uses the rotation of the main shaft S as a drive source, and converts the continuous rotation of the main shaft into intermittent rotation. When the main shaft S rotates, the spline 31 attached to the output shaft 29a of the unit 29 rotates intermittently in one direction. The intermittent rotation of the spline 31 is transmitted to the gear 28 via the universal joint 30, and the intermittent rotation transmitted to the gear 28 is transmitted to the gear 25 a of the main feed roller 25 via the belt 27. That is, the main feed roller 25 is intermittently rotated in one direction by the rotation of the main shaft S, and the intermittent rotation of the main feed roller 25 is transmitted to the fabric.

また、ユニット29は、間欠回転量を調節できる機能を有し、該調節機能で針孔5後方の布地に対する送り量の変更を可能としている。なお、本実施の形態では、主軸の全回転を駆動源とするユニットを用いたが、これに限定されるわけでない。例えば、その駆動源を主軸に連動して揺動する揺動軸とし、該揺動軸にワンウェイクラッチを連結した機械式間欠機構、或いは、主軸回転パルス発信器からの信号に基づき作動するステッピングモータを用いてもよい。   Further, the unit 29 has a function of adjusting the intermittent rotation amount, and the adjustment function makes it possible to change the feed amount to the fabric behind the needle hole 5. In the present embodiment, the unit using the full rotation of the main shaft as the drive source is used, but the present invention is not limited to this. For example, the drive source is a swinging shaft that swings in conjunction with the main shaft, and a mechanical intermittent mechanism in which a one-way clutch is connected to the swinging shaft, or a stepping motor that operates based on a signal from a main shaft rotation pulse transmitter May be used.

主送りローラ25には、図5に示すように、布地がシリンダベッド円周方向で確実に送られるよう布地を針板2の傾斜面7に弾性的に押圧する付勢部材32が付設されている。付勢部材32は、ギヤ25a,28を回転可能に支持する支持具33と、該支持具33を下方に付勢する付勢具34を備える。付勢具34はミシンアーム部Aの背面にネジ35で固定されるコ字状のブラケット36を有し、このブラケット36は支持具33の延出棒33aを上下にスライド可能に支持している。延出棒33aの中途には規制片37がネジ38で取り付けられている。圧縮バネ39は規制片37とブラケット36との間に位置する延出棒33aに介装されている。主送りローラ25の押圧方向は針板2の傾斜面7の直交方向と一致されるようにしており、圧縮バネ39の押圧力は調節ネジ40で調節できるようにしている。   As shown in FIG. 5, the main feed roller 25 is provided with a biasing member 32 that elastically presses the fabric against the inclined surface 7 of the needle plate 2 so that the fabric is reliably fed in the circumferential direction of the cylinder bed. Yes. The biasing member 32 includes a support tool 33 that rotatably supports the gears 25a and 28, and a biasing tool 34 that biases the support tool 33 downward. The urging tool 34 has a U-shaped bracket 36 fixed to the back surface of the sewing machine arm portion A with a screw 35, and the bracket 36 supports an extending bar 33a of the support tool 33 so as to be slidable up and down. . A regulating piece 37 is attached with a screw 38 in the middle of the extending rod 33a. The compression spring 39 is interposed in an extending bar 33 a located between the restricting piece 37 and the bracket 36. The pressing direction of the main feed roller 25 is made to coincide with the orthogonal direction of the inclined surface 7 of the needle plate 2, and the pressing force of the compression spring 39 can be adjusted by the adjusting screw 40.

また、付勢部材32により布地に押圧される主送りローラ25の押圧解除は、主送りローラ揚げ手段41により行われる。主送りローラ揚げ手段41は規制片37を引き上げるワイヤ部材を備える。ワイヤ部材のアウターケーブル42aはブラケット36に固定されたアウターケーブル受け片44で支持され、ワイヤ部材のインナーワイヤ42bは足踏みペダルの動作により圧縮バネ39に抗して規制片37を上昇させる。この主送りローラ揚げ手段41の上昇を、押え揚げ手段(図示せず)による押え金19の上昇と連動させておくと、布地のセットあるいは取外しを容易にできる。なお、本実施の形態では、主送りローラの押圧解除策としてワイヤ部材を用いたが、これに限定されるわけでなく、規制片に連結ないし係合されるようなエアシリンダを用いてもよい。   Further, the main feed roller 25 is released from being pressed by the urging member 32 by the main feed roller lifting means 41. The main feed roller lifting means 41 includes a wire member that pulls up the restriction piece 37. The outer cable 42a of the wire member is supported by the outer cable receiving piece 44 fixed to the bracket 36, and the inner wire 42b of the wire member raises the regulating piece 37 against the compression spring 39 by the operation of the foot pedal. If the rise of the main feed roller lifting means 41 is linked to the rise of the presser foot 19 by the presser lifting means (not shown), the fabric can be easily set or removed. In this embodiment, the wire member is used as a measure for releasing the main feed roller. However, the present invention is not limited to this, and an air cylinder that is connected to or engaged with the restriction piece may be used. .

差動送り歯26は、ミシンアーム部A内に配置された公知の上送り機構により上下前後に楕円運動し、押え金19の送り歯溝19aを間欠的に貫通する。間欠的に貫通した差動送り歯26は上方より布地に係合し、差動送り歯26の送り動作が布地に伝達される。主送りローラ25と差動送り歯26の布送りタイミングは同一となるように調整しておくのが望ましい。なお、本実施の形態では、布送り手段を主送りローラと差動送り歯とで構成していたが、これに限定されるわけでなく、図6に示すように、針を前後にまたいで形成される前後送り歯片45とし、前後送り歯片45を公知の上送り機構で上下前後に楕円運動させてもよい。   The differential feed dog 26 elliptically moves up and down by a known upper feed mechanism disposed in the sewing machine arm portion A, and intermittently penetrates the feed dog groove 19 a of the presser foot 19. The differential feed dog 26 that has passed through intermittently engages the fabric from above, and the feed operation of the differential feed dog 26 is transmitted to the fabric. It is desirable to adjust the cloth feed timings of the main feed roller 25 and the differential feed dog 26 to be the same. In the present embodiment, the cloth feeding means is composed of the main feed roller and the differential feed dog. However, the present invention is not limited to this, and as shown in FIG. The front / rear feed tooth piece 45 may be formed, and the front / rear feed tooth piece 45 may be elliptically moved up and down and front and rear by a known upper feed mechanism.

本発明に適用されるシリンダベッドミシンの要部を示す斜視図である。It is a perspective view which shows the principal part of the cylinder bed sewing machine applied to this invention. 同上ミシンの針板付近を示す概略平面図である。It is a schematic plan view which shows the needle plate vicinity of a sewing machine same as the above. 同上ミシンのシリンダベッド部を示す概略側面図である。It is a schematic side view which shows the cylinder bed part of a sewing machine same as the above. 同上ミシンのルーパ機構を示す斜視図である。It is a perspective view which shows the looper mechanism of a sewing machine same as the above. 同上ミシンの付勢部材を示す概略背面図である。It is a schematic rear view which shows the biasing member of a sewing machine same as the above. 本発明に適用されるシリンダベッドミシンのシリンダベッド部の別の様態を示す概略側面図である。It is a schematic side view which shows another aspect of the cylinder bed part of the cylinder bed sewing machine applied to this invention.

符号の説明Explanation of symbols

1 シリンダベッド部
1a 内壁下面
2 針板
5 針孔
6 舌片(針板爪)
7 傾斜面
8 ルーパ
9 前針受け
10 後針受け
14 取付け軸台
17,18 針
19 押え金
20 布送り手段
21 針棒
25 主送りローラ
26 差動送り歯
41 主送りローラ揚げ手段
DESCRIPTION OF SYMBOLS 1 Cylinder bed part 1a Inner wall lower surface 2 Needle plate 5 Needle hole 6 Tongue piece (needle plate nail)
7 Inclined surface 8 Looper 9 Front needle receiver 10 Rear needle receiver 14 Shaft base 17, 18 Needle 19 Presser foot 20 Cloth feed means 21 Needle bar 25 Main feed roller 26 Differential feed dog 41 Main feed roller lifting means

Claims (2)

シリンダベッド上部に取り付けられた針孔と針板爪を有する針板と、上下に往復運動する針棒の先端に取り付けられた針を左右に横切って運動し該針との協働で二重環縫い目を形成するルーパと該針孔の針落を貫通する針先端を前方より支持する前針受け及び該針先端を後方より支持する後針受けとをシリンダベッド部内に備え、そのシリンダベッド部の上方に該針板との間に布地を挟んで押圧する押え金と、シリンダベッド円周方向で布地を送る布送り手段とを備えたシリンダベッドミシンにおいて、布送り手段が、針を前後にまたいで形成され、シリンダベッド部にセットされた布地に係合して該布地を布送り方向に送る送り部材からなり、前針受けが揺動軸の腕に連結されたルーパ軸の取付け軸台にルーパと共に取り付けられ、後針受けがシリンダベッドの内壁に固定され、前記シリンダベッド部内に下送り歯を有さず、前記針板に下送り歯が挿通される長手角孔を有しないことを特徴とするシリンダベッドミシン。 A needle plate with a needle hole and a needle plate claw attached to the upper part of the cylinder bed, and a needle attached to the tip of a needle bar that reciprocates up and down move horizontally and cooperate with the needle to make a double ring. The cylinder bed portion includes a looper that forms a seam, a front needle holder that supports a needle tip penetrating the needle drop of the needle hole from the front, and a rear needle holder that supports the needle tip from the rear. In a cylinder bed sewing machine provided with a presser foot that presses the cloth upward with the needle plate and a cloth feed means for feeding the cloth in the cylinder bed circumferential direction, the cloth feed means straddles the needle back and forth. It is made of a feed member that engages with the fabric set in the cylinder bed portion and feeds the fabric in the fabric feed direction, and the front needle holder is attached to the mounting shaft base of the looper shaft connected to the arm of the swing shaft Attached with looper, rear needle holder There is fixed to the inner wall of the cylinder bed, without a lower feed teeth in the cylinder bed, cylinder bed sewing machine, characterized in that does not have a longitudinal angle hole lower feed teeth is inserted in the needle plate. シリンダベッド上部に取り付けられた針孔と針板爪を有する針板と、上下に往復運動する針棒の先端に取り付けられた針を左右に横切って運動し該針との協働で二重環縫い目を形成するルーパと該針孔の針落を貫通する針先端を前方より支持する前針受け及び該針先端を後方より支持する後針受けとをシリンダベッド部内に備え、そのシリンダベッド部の上方に該針板との間に布地を挟んで押圧する押え金と、シリンダベッド円周方向で布地を送る布送り手段とを備えたシリンダベッドミシンにおいて、押え金が針開口孔と該針開口孔の手前に配置された送り歯溝とを有し、布送り手段が、押え金の送り歯溝を間欠的に貫通して針板の針落の手前でシリンダベッド部にセットされた布地を布送り方向に送る差動上送り歯と、該差動上送り歯の送り運動と協調して間欠回転し、針後部でシリンダベッド部にセットされた布地を布送り方向に送る主送りローラとから成り、前針受けが揺動軸の腕に連結されたルーパ軸の取付け軸台にルーパと共に取り付けられ、後針受けがシリンダベッドの内壁に固定され、前記シリンダベッド部内に下送り歯を有さず、前記針板に下送り歯が挿通される長手角孔を有しないことを特徴とするシリンダベッドミシン。 A needle plate with a needle hole and a needle plate claw attached to the upper part of the cylinder bed, and a needle attached to the tip of a needle bar that reciprocates up and down move horizontally and cooperate with the needle to make a double ring. The cylinder bed portion includes a looper that forms a seam, a front needle holder that supports a needle tip penetrating the needle drop of the needle hole from the front, and a rear needle holder that supports the needle tip from the rear. In a cylinder bed sewing machine provided with a presser foot that presses a cloth between the needle plate and a cloth feed means for feeding the cloth in the circumferential direction of the cylinder bed, the presser foot has a needle opening hole and the needle opening. The cloth feed means intermittently penetrates the feed dog groove of the presser foot and passes the cloth set in the cylinder bed before the needle drop of the needle plate. A differential upper feed dog to be fed in the cloth feed direction, and the differential upper feed dog Ri movement and in coordination with the intermittent rotation, the fabric is set on the cylinder bed with needle tail consists of a main feed roller for sending the cloth feeding direction, before needle receiving of looper shaft coupled to the arm of the pivot axis The rear needle holder is fixed to the inner wall of the cylinder bed with the looper attached to the mounting shaft base, and does not have the lower feed dog in the cylinder bed portion, but has a longitudinal square hole through which the lower feed dog is inserted into the needle plate. Cylinder bed sewing machine characterized by not.
JP2005139395A 2005-05-12 2005-05-12 Cylinder bed sewing machine Expired - Fee Related JP4215744B2 (en)

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Application Number Priority Date Filing Date Title
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Related Parent Applications (1)

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JP2000117779A Division JP3696770B2 (en) 2000-04-19 2000-04-19 Cylinder bed sewing machine

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JP4215744B2 true JP4215744B2 (en) 2009-01-28

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