JP2001300168A - Cylinder bed sewing machine - Google Patents

Cylinder bed sewing machine

Info

Publication number
JP2001300168A
JP2001300168A JP2000117779A JP2000117779A JP2001300168A JP 2001300168 A JP2001300168 A JP 2001300168A JP 2000117779 A JP2000117779 A JP 2000117779A JP 2000117779 A JP2000117779 A JP 2000117779A JP 2001300168 A JP2001300168 A JP 2001300168A
Authority
JP
Japan
Prior art keywords
needle
cylinder bed
feed
fabric
cloth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000117779A
Other languages
Japanese (ja)
Other versions
JP3696770B2 (en
Inventor
Hirochika Mukai
裕親 向井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pegasus Co Ltd
Original Assignee
Pegasus Sewing Machine Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pegasus Sewing Machine Manufacturing Co Ltd filed Critical Pegasus Sewing Machine Manufacturing Co Ltd
Priority to JP2000117779A priority Critical patent/JP3696770B2/en
Priority to TW90105976A priority patent/TW528824B/en
Priority to CNB011170190A priority patent/CN1200160C/en
Publication of JP2001300168A publication Critical patent/JP2001300168A/en
Application granted granted Critical
Publication of JP3696770B2 publication Critical patent/JP3696770B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a cylinder bed sewing machine which facilitates the sewing of an extremely fine cylindrical material. SOLUTION: The cylinder bed sewing machine has a throat plate which is mounted in the upper part of the cylinder bed and has needle holes and throat plate pawls, a looper which moves to laterally cross the needles mounted at the top of a needlebar moving vertically back and forth, a pressure foot which has front needle guards for supporting the needle tips penetrating the needle location of the needle holes from front and rear needle guards for supporting the needle tips from rear within the cylinder bed section, holds a fabric between itself and the throat plate above the cylinder bed section and presses the fabric, and a cloth feeding means which feeds the fabric in the cylindrical direction of the cylinder bed. The cloth feeding means consists of only the walking bar member for feeding the fabric in the cloth feeding direction and the throat plate is so formed as not to have longitudinal square holes to be inserted with lower feed dogs, by which the cylinder bed section is made extremely fine without being limited by a feed mechanism arranged heretofore therein.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】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。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder bed sewing machine which is suitable for sewing a very thin cylindrical object such as a face-down sewing of a cuff of baby wear.

【0002】[0002]

【従来の技術】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。
2. Description of the Related Art Conventionally, in order to sew a small-diameter cylindrical material, a so-called cylinder bed sewing machine in which a sewn portion of a sewing bed is a thin cylindrical free arm is used. However, since the thickness 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 extra-fine cylindrical cloth on the free arm. A sewing machine in which the cloth feeding direction is the longitudinal direction of the free arm has been used instead. However, even with this substitute sewing machine, it was not possible to set a very thin tubular cloth on the free arm, and the cloth was sewn with the cloth centered at an oblique center line. For this reason, the efficiency of the sewing operation is deteriorated, and skill is required.

【0003】[0003]

【発明が解決しようとする課題】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。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cylinder bed sewing machine which can easily sew a very thin cylindrical object.

【0004】[0004]

【課題を解決するための手段】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、シリンダベッド部にセットされた
布地の表側に係合して該布地を布送り方向に送る送り部
材のみからなり、前記針板は下送り歯が挿通する長手角
孔を有しないことことを特徴とする。
According to a first aspect of the present invention, a needle plate having a needle hole and a needle plate claw mounted on an upper portion of a cylinder bed and a needle bar reciprocating up and down are mounted on the tip of the needle bar. A front needle holder for supporting the needle tip which passes through the needle drop of the needle hole, the looper forming the double chain seam in cooperation with the needle and moving the needle in the left and right direction, and the needle tip from the rear. A supporting rear needle receiver is provided in the cylinder bed,
In a cylinder bed sewing machine having a presser foot for sandwiching and pressing a cloth between the needle plate and the needle plate above the cylinder bed portion, and a cloth feeding means for feeding the cloth in a circumferential direction of the cylinder bed, the cloth feeding means includes: The needle plate comprises only a feed member that engages with the front side of the cloth set in the cylinder bed portion and feeds the cloth in the cloth feed direction, and the needle plate does not have a longitudinal hole through which the lower feed dog is inserted. I do.

【0005】本願請求項2に係る発明は、針板の後部が
傾斜面を有し、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布地を
布送り方向に送る差動上送り歯と、針後部に接近して配
置され、針板の傾斜面に対して直交方向に該傾斜面に押
圧し、該差動上送り歯の送り運動と協調して間欠駆動さ
れる主送りローラと、該送りローラが押え金と同時に揚
げられる主送りローラ揚げ手段とから成り、前針受けが
ルーパの取付け軸台に取り付けられ、後針受けがシリン
ダベッド内壁に取り付けられたことを特徴とする。
According to a second aspect of the present invention, the rear portion of the needle plate has an inclined surface, the presser foot has a needle opening, and a feed dog groove arranged in front of the needle opening. Means for intermittently penetrating through the feed dog groove of the presser foot to feed the fabric in the cloth feed direction just before the needle drop of the needle plate; A main feed roller that presses against the inclined surface in a direction perpendicular to the inclined surface and is intermittently driven in coordination with the feed motion of the differential upper feed dog, and a main feed roller where the feed roller is lifted simultaneously with the presser foot And a lifting means, wherein the front needle receiver is mounted on the mounting stand of the looper, and the rear needle receiver is mounted on the inner wall of the cylinder bed.

【0006】[0006]

【作用】本願発明によれば、極細の筒状布地がシリンダ
ベッド部にセットされると、長手角孔を有しない針板が
該布地を下方より確実に支持し、布送り手段が該布地の
表側に係合して該布地をシリンダベッド円周方向に送る
こととなる。
According to the present invention, when an extremely fine tubular cloth is set on the cylinder bed, the needle plate having no longitudinal hole supports the cloth more reliably from below, and the cloth feeding means is provided with the cloth feeding means. The fabric is engaged with the front side to feed the fabric in the circumferential direction of the cylinder bed.

【0007】特に、針板後部に傾斜面を設けるととも
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歯溝に貫通させ、針板後部の傾斜
面に該主送りローラを押圧することで、筒状布地の送り
が確実に行われる。また、針先端が針板の針落を貫通す
ると、針先端は、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されるとともに、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
される。
In particular, an inclined surface is provided at the rear portion of the needle plate, and the differential feed teeth of the cloth feed means and the main feed roller are arranged before and after the needle drop, so that the differential feed arranged before the needle drop is provided. By feeding the teeth through the feed dog groove of the presser foot and pressing the main feed roller against the inclined surface at the rear part of the needle plate, feeding of the tubular fabric is reliably performed. When the tip of the needle penetrates the needle drop of the needle plate, the tip of the needle is supported from the front by a front needle receiver attached to the mount of the looper, and from the rear by a rear needle receiver attached to the inner wall of the cylinder bed. Supported.

【0008】[0008]

【発明の実施の形態】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4
a,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。
Embodiments of the present invention will be described below 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 has a needle drop 4 through a slit 3 formed along a direction orthogonal to the cloth feeding direction F.
It has a gate-shaped needle hole 5 extending to a and 4b, and a tongue piece 6 (needle claw) surrounded by the needle hole 5 and having a tip extending in the cloth feeding direction F. The needle plate 2 has an inclined surface 7 at a rear portion, and does not have a longitudinal 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. May be provided.

【0009】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1
1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1
0a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 a mounting base 14 of a looper shaft 13 connected to the arm 12 of the swing shaft 11,
1 is connected to the main shaft S via rods 15 and 16. When the main shaft S rotates, the looper 8 moves left and right across a needle described later. A looper thread 8a is provided at the tip of the looper 8.
Is inserted. The front needle receiver 9 is mounted on the mounting shaft base 14 and is disposed substantially parallel to the looper 8. The rear needle receiver 10 has a screw 1 on the lower surface 1a of the inner wall of the cylinder bed 1.
0a. 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 receiver is attached to the lower surface of the inner wall of the cylinder bed.
The present invention is not limited to this, and the rear needle receiver may be attached to the side surface of the inner wall of the cylinder bed.

【0010】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,18
aが挿通されている。針棒21の降下時に各針17,1
8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 are provided.
A presser foot 19 for pressing the fabric against the needle plate 2 and a fabric feeding means 20 for feeding the set fabric in the fabric feeding direction F are arranged. Each of the needles 17 and 18 is attached to a needle stud 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) which rotates fully in a bed body B. . As shown in FIG. 4, needle threads 17a, 18
a is inserted. When the needle bar 21 descends, each needle 17, 1
The tip 8 penetrates the needle holes 4a and 4b of the needle hole 5. When the main shaft S is fully rotated in one direction, the looper 8 cooperates with the needles 17 and 18. By this cooperation, the needle threads 17a, 18a inserted into the tips of the needles 17, 18 and the looper thread 8a inserted into the tip of the looper 8, respectively, form a double ring seam and are formed on the fabric.

【0011】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19
a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 the 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 the needle opening hole. Feed groove 19 arranged in front of
a. The presser bar 24 presses the presser foot 19 against the needle plate 2 by a spring mechanism (not shown) arranged in the sewing machine arm portion A, and the press on the fabric is performed until immediately before the inclined surface 7 of the needle plate 2. Further, the sewing machine arm A is provided with a presser lifting mechanism (not shown) for raising the presser foot 19 by operation of a foot pedal or the like.

【0012】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2
9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 dog 26 which engage 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 of the needle,
It has a gear 25a. The gear 25a is connected to a gear 28 via a belt 27, and the gear 28 is connected to a spline 31 attached to an output shaft 29a of the unit 29 via a universal joint 30. The unit 29 uses the rotation of the main shaft S as a drive source and converts continuous rotation of the main shaft into intermittent rotation. When the main shaft S rotates, the unit 2
The spline 31 attached to the No. 9 output shaft 29a intermittently rotates 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 rotation of the main shaft S causes the main feed roller 25 to intermittently rotate in one direction, and the intermittent rotation of the main feed roller 25 is transmitted to the fabric.

【0013】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。
The unit 29 has a function of adjusting the amount of intermittent rotation, and the adjustment function allows the feed amount to the cloth behind the needle hole 5 to be changed. In the present embodiment, a unit that uses the full rotation of the spindle as a drive source is used, but the present invention is not limited to this. For example, a mechanical intermittent mechanism in which the drive source is a swing shaft that swings in conjunction with the main shaft and a one-way clutch is connected to the swing shaft, or a stepping motor that operates based on a signal from a main shaft rotation pulse transmitter May be used.

【0014】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3
3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 has an urging member 32 for elastically pressing the cloth against the inclined surface 7 of the needle plate 2 so that the cloth can be reliably fed in the circumferential direction of the cylinder bed. It is attached. The urging member 32 includes a gear 25a,
28, which rotatably supports the supporting member 28;
Is provided below. The urging tool 34 has a U-shaped bracket 36 fixed to the back surface of the sewing machine arm A with a screw 35.
The third extension bar 33a is slidably supported up and down. A regulating piece 37 is attached in the middle of the extension rod 33a with a screw 38. The compression spring 39 is interposed on the extension rod 33a located between the restriction 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.

【0015】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。
The main feed roller 25, which is pressed against the cloth by the urging member 32, is released by the main feed roller lifting means 41. The main feed roller lifting means 41 includes a wire member for lifting the restriction piece 37. The outer cable 42a of the wire member is supported by an outer cable receiving piece 44 fixed to the bracket 36, and the inner wire 42b of the wire member raises the restriction piece 37 against the compression spring 39 by the operation of the foot pedal. If the raising of the main feed roller lifting means 41 is linked with the lifting of the presser foot 19 by the pressing and lifting means (not shown), the setting or removal of the fabric can be facilitated. In the present embodiment, the wire member is used as a measure for releasing the pressing of the main feed roller. However, the present invention is not limited to this, and an air cylinder connected or engaged with the regulating piece may be used. .

【0016】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 makes an elliptical movement up and down and back and forth by a well-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 intermittently penetrated 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 timing of the main feed roller 25 and the differential feed dog 26 so as to be the same. In the present embodiment, the cloth feed means is constituted by the main feed roller and the differential feed dog, but is not limited to this.
As shown in FIG. 6, the needle may be a front-rear feed tooth piece 45 formed so as to straddle the front-rear direction, and the front-rear feed tooth piece 45 may be moved up and down and back and forth by a known upper feed mechanism.

【0017】[0017]

【発明の効果】以上に述べたように、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、布送り手段が布地の表側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。
As described above, according to the present invention, the needle plate having no longitudinal hole reliably supports the fabric from below, and the fabric feeding means engages with the front side of the fabric to remove the fabric. By configuring the cylinder bed to feed in the circumferential direction, the diameter of the cylinder bed can be made extremely thin, which is not limited by the feed mechanism including the lower feed dog, and even in the case of an extremely thin cylinder bed, the setting or feeding of the fabric is ensured. In this way, sewing of a very thin tubular cloth can be performed efficiently.

【0018】特に、針板後部に傾斜面を設けるととも
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、針板後部の傾斜面
に該主送りローラを押圧することで、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, an inclined surface is provided at the rear portion of the needle plate, and the differential feed teeth of the cloth feed means and the main feed roller are arranged before and after the needle drop, and the differential feed arranged before the needle drop is provided. By feeding the teeth through the feed groove of the presser foot and pressing the main feed roller against the inclined surface at the rear part of the needle plate, the feed of the tubular fabric can be reliably performed. Further, by configuring the front end of the needle to be supported from the front by a front needle receiver attached to the mounting base of the looper, and to be supported from the rear by a rear needle receiver attached to the inner wall of the cylinder bed, the diameter of the cylinder bed portion is increased. Can be made very fine.

【図面の簡単な説明】[Brief description of the drawings]

【図1】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。
FIG. 1 is a perspective view showing a main part of a cylinder bed sewing machine applied to the present invention.

【図2】同上ミシンの針板付近を示す概略平面図であ
る。
FIG. 2 is a schematic plan view showing the vicinity of a needle plate of the sewing machine.

【図3】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。
FIG. 3 is a schematic side view showing a cylinder bed of the sewing machine.

【図4】同上ミシンのルーパ機構を示す斜視図である。FIG. 4 is a perspective view showing a looper mechanism of the sewing machine.

【図5】同上ミシンの付勢部材を示す概略背面図であ
る。
FIG. 5 is a schematic rear view showing an urging member of the sewing machine.

【図6】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。
FIG. 6 is a schematic side view showing another embodiment of the cylinder bed portion of the cylinder bed sewing machine applied to the present 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 claw) 7 Inclined surface 8 Looper 9 Front needle receiver 10 Rear needle receiver 14 Mounting shaft stand 17, 18 Needle 19 Presser foot 20 Cloth feeding means 21 Needle bar 25 Main feed roller 26 Differential feed dog 41 Main feed roller lifting means

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) D05B 73/06 D05B 73/06 73/12 73/12 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) D05B 73/06 D05B 73/06 73/12 73/12

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 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、シリンダベッド部にセ
ットされた布地の表側に係合して該布地を布送り方向に
送る送り部材のみからなり、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。
1. A needle plate having a needle hole and a needle plate claw attached to an upper portion of a cylinder bed, and a needle attached to a tip of a needle bar which reciprocates up and down is moved laterally across the needle to cooperate with the needle. A looper forming a double chain stitch by operation, a front needle receiver for supporting the needle tip penetrating the needle drop of the needle hole from the front, and a rear needle receiver for supporting the needle tip from the rear in the cylinder bed portion, In a cylinder bed sewing machine having a presser foot for sandwiching and pressing a cloth between the needle plate and the needle plate above the cylinder bed portion, and a cloth feeding means for feeding the cloth in a circumferential direction of the cylinder bed, the cloth feeding means includes: It consists only of a feed member which engages with the front side of the fabric set in the cylinder bed portion and feeds the fabric in the fabric feed direction, has no lower feed dog in the cylinder bed portion, and has a lower feed tooth on the needle plate. Do not have a rectangular hole to be inserted And a cylinder bed sewing machine.
【請求項2】 針板の後部が傾斜面を有し、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布地を布送り方向に送る差動上送
り歯と、針後部に接近して配置され、針板の傾斜面に対
して直交方向に該傾斜面に押圧し、該差動上送り歯の送
り運動と協調して間欠駆動される主送りローラと、該主
送りローラの揚程をなす主送りローラ揚げ手段とから成
り、前針受けがルーパの取付け軸台に取り付けられ、後
針受けがシリンダベッド内壁に取り付けられたことを特
徴とする請求項1記載のシリンダベッドミシン。
2. The rear part of the needle plate has an inclined surface, the presser foot has a needle opening hole and a feed dog groove arranged in front of the needle opening hole, and the cloth feed means feeds the presser foot. A differential upper feed dog that intermittently penetrates the tooth groove and feeds the fabric in the cloth feed direction just before the needle drop of the needle plate, and is arranged close to the rear of the needle and perpendicular to the inclined surface of the needle plate. A main feed roller which is pressed against the inclined surface and is intermittently driven in coordination with the feed motion of the differential upper feed dog; The cylinder bed sewing machine according to claim 1, wherein the rear needle holder is mounted on an inner wall of the cylinder bed.
JP2000117779A 2000-04-19 2000-04-19 Cylinder bed sewing machine Expired - Fee Related JP3696770B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000117779A JP3696770B2 (en) 2000-04-19 2000-04-19 Cylinder bed sewing machine
TW90105976A TW528824B (en) 2000-04-19 2001-03-14 Cylinder bed sewing machine
CNB011170190A CN1200160C (en) 2000-04-19 2001-04-19 Sewing machine with cylinder base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000117779A JP3696770B2 (en) 2000-04-19 2000-04-19 Cylinder bed sewing machine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2005139395A Division JP4215744B2 (en) 2005-05-12 2005-05-12 Cylinder bed sewing machine

Publications (2)

Publication Number Publication Date
JP2001300168A true JP2001300168A (en) 2001-10-30
JP3696770B2 JP3696770B2 (en) 2005-09-21

Family

ID=18629037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000117779A Expired - Fee Related JP3696770B2 (en) 2000-04-19 2000-04-19 Cylinder bed sewing machine

Country Status (3)

Country Link
JP (1) JP3696770B2 (en)
CN (1) CN1200160C (en)
TW (1) TW528824B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004222948A (en) * 2003-01-22 2004-08-12 Yamato Sewing Mach Co Ltd Sewing machine
CN107043999A (en) * 2016-06-02 2017-08-15 标准缝纫机菀坪机械有限公司 A kind of New trunk sewing machine
CN114381871A (en) * 2021-12-27 2022-04-22 际华三五零六纺织服装有限公司 Pulsation type deviation-rectifying cloth feeding device of lockstitch sewing machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350091C (en) * 2003-12-08 2007-11-21 星锐缝纫机股份有限公司 Horizontal type straight drum shaped sewing machine
CN106087294B (en) * 2016-08-26 2018-09-18 宁波市鄞州德艺缝制设备有限公司 A kind of sewing machine with annular sewing function
CN106319788B (en) * 2016-08-26 2018-09-25 宁波市鄞州德艺缝制设备有限公司 It is a kind of can annular sewing sewing machine
CN106087265B (en) * 2016-08-26 2018-09-28 宁波市鄞州德艺缝制设备有限公司 A kind of circumferential direction sewing mechanism
CN106319787B (en) * 2016-08-26 2018-10-02 宁波市鄞州德艺缝制设备有限公司 A kind of circumferential sewing device easy to operation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004222948A (en) * 2003-01-22 2004-08-12 Yamato Sewing Mach Co Ltd Sewing machine
CN107043999A (en) * 2016-06-02 2017-08-15 标准缝纫机菀坪机械有限公司 A kind of New trunk sewing machine
CN107043999B (en) * 2016-06-02 2019-04-09 标准缝纫机菀坪机械有限公司 A kind of New trunk sewing machine
CN114381871A (en) * 2021-12-27 2022-04-22 际华三五零六纺织服装有限公司 Pulsation type deviation-rectifying cloth feeding device of lockstitch sewing machine

Also Published As

Publication number Publication date
CN1318662A (en) 2001-10-24
TW528824B (en) 2003-04-21
JP3696770B2 (en) 2005-09-21
CN1200160C (en) 2005-05-04

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