JPS595318B2 - Sewing machine cloth control device - Google Patents

Description

【発明の詳細な説明】 この発明は、布の縫合予定縁の有無を検出するセンサの
検知信号に応答して布を布送り方向との交叉方向へ移動
するマニピレータを備えるミシンにおいて、縫合予定縁
を縫合部へ移動させるように布を制御するミシンの布制
御装置に関し、縫い始め時における布の制御を確実にす
ることを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a sewing machine equipped with a manipulator that moves cloth in a direction crossing the cloth feeding direction in response to a detection signal from a sensor that detects the presence or absence of an edge to be sewn. The present invention relates to a cloth control device for a sewing machine that controls the cloth so as to move the cloth to a sewing part, and the object thereof is to ensure the control of the cloth at the beginning of sewing.

この発明の実施例を図面により説明すると、ミシン１は
モータ（図示しない）に連動して二本の針２と一部のル
ーパー（図示しない）とにより二条の還縫目Ｎ（第１２
図）を形成する公知の飾り縫いミシンであり、針板３の
送り溝４より上方に出没する送り歯は複数列の主送り歯
５及び一列の副送り歯６とよりなり、これらは常には等
しい送り量をもちベッド７下刃のエアシリンダ８の作用
により副送り歯６の送り量が主送り歯５よりも多くなる
ように連結し、いわゆる差動送りが可能にしである。An embodiment of the present invention will be described with reference to the drawings. A sewing machine 1 is operated in conjunction with a motor (not shown) and uses two needles 2 and a part of a looper (not shown) to make two back stitches N (12
This is a well-known decorative stitch sewing machine that forms a sewing machine (see Fig.), and the feed dogs that protrude and retract above the feed groove 4 of the throat plate 3 consist of a plurality of rows of main feed dogs 5 and a row of sub feed dogs 6, and these are always By the action of the air cylinder 8 of the lower blade of the bed 7, which has the same feed amount, the auxiliary feed dog 6 is connected so that the feed amount is greater than that of the main feed dog 5, making so-called differential feed possible.

ベッドＩの布送り方向手前には、布送り方向において緩
やかに湾曲した主布受は台９及び主布受は台９の曲面に
接続し布送り方向先方に向かって登るように傾斜する副
布受は台１０とを配置し、主副布受は台９，１０及びベ
ッドＩの側方にはアンダーシャツ（ランニングシャツ）
の身頃Ｗの裾部を挾持しエアシリンダ１１の作用により
布送り方向先方へ移動する運搬体１２を配置する。In front of the bed I in the cloth feeding direction, there is a main cloth holder which is gently curved in the cloth feeding direction, and a secondary cloth which is connected to the curved surface of the table 9 and slopes upward in the cloth feeding direction. The receiver is placed with a stand 10, the main and sub-cloth receivers are with stands 9 and 10, and an undershirt (running shirt) is placed on the side of the bed I.
A carrier 12 is placed which grips the hem of the body W and moves forward in the cloth feeding direction by the action of an air cylinder 11.

送り歯上力に対向し、エアシリンダ（図示しない）の作
用により昇降する押え棒下端に固定した布押え足１３の
布送り方向手前には、エアシリンダ（図示しない）の作
用によりベッド７上面に圧接されるマニピレータ１４（
特開昭５２−１２１４４６により公知）が配置しており
、押え足１３との間に配置したセンサー１５上に常に布
側端縁が位置するように、センサー１５の検知信号によ
り先端の歯車１６を正逆回動させて布送り方向との交叉
方向へ身頃Ｗを移動する。Opposed to the upper force of the feed dog, the presser foot 13, which is fixed to the lower end of the presser bar and moves up and down by the action of an air cylinder (not shown), is placed on the upper surface of the bed 7 by the action of an air cylinder (not shown) at the front in the material feeding direction. The manipulator 14 (
The gear 16 at the tip is moved by the detection signal of the sensor 15 so that the edge of the cloth side is always positioned on the sensor 15 arranged between the presser foot 13 and the presser foot 13. The body W is moved in a direction crossing the cloth feeding direction by rotating forward and backward.

押え足１３の布送り方向手前に固定配置したバインダー
１７は、一枚に広げられたテープＴがその中を通過する
間に、第１１図に示すように徐々に三重に折りたたんで
縫合部手前に引き出される。A binder 17 fixedly placed in front of the presser foot 13 in the cloth feeding direction gradually folds the tape T into three layers as shown in FIG. drawn out.

布搬入装置１８について、運搬体１２に保持された身頃
Ｗの肩部Ｗ１．Ｗ２の一方を縫い開始前に縫合部へ送り
込むためのもので、ミシン１の面部に固定した保持体１
９に垂直軸線を中心に回動可能に枠体２０を支持し、こ
の枠体２０をして後述する係合片２７が縫合部手前のベ
ッド面上方に対向する作用位置に弾性により係止可能と
しだ係止片３６を機枠に支持する。Regarding the cloth carrying device 18, the shoulder portion W1. of the body W held on the carrier 12. This is to send one side of W2 to the seam section before sewing starts, and is a holder 1 fixed to the surface of the sewing machine 1.
A frame body 20 is supported rotatably around a vertical axis at 9, and this frame body 20 can be elastically locked in an operating position where an engaging piece 27, which will be described later, faces above the bed surface in front of the suture part. The stopper locking piece 36 is supported on the machine frame.

この枠体２０にエアシリンダ２１の上端を水平軸２２に
より回動可能に支持し、そのプランジャー２３の下端に
は枠体２０に形成したＬ字状の溝カム２４に遊嵌する突
起２５をもつ作動片２６を固定し、作動片２６の下端に
は弾性を有し下端面を凹凸状とした板状の主副係合片２
７ａ 、２７ｂを上下に重合して固定する。The upper end of an air cylinder 21 is rotatably supported on this frame 20 by a horizontal shaft 22, and the lower end of the plunger 23 has a protrusion 25 that loosely fits into an L-shaped groove cam 24 formed on the frame 20. A main and sub-engaging piece 2 is fixed at the lower end of the actuating piece 26 and is elastic and has an uneven lower end surface.
7a and 27b are stacked vertically and fixed.

両係合片２７ａ、ｂの自由端は身頃Ｗの肩部Ｗ１の布送
り方向先端縁及び一側端縁に沿うように剣先状に形成し
、且つ下方に向けてわずかに傾斜させるとともに、常に
はベッド７上面から上方へ離隔する。The free ends of both engaging pieces 27a and 27b are formed in a sword-point shape along the leading edge and one side edge in the cloth feeding direction of the shoulder portion W1 of the body W, and are slightly inclined downward, and are always is separated upward from the top surface of the bed 7.

エアシリンダ２１の作用によって作動片２６が下降する
のに関連してピン２５が溝カム２４に沿い移動するとき
その垂直部２４ａに沿うときには主係合片２７ａの自由
端が肩部Ｗ１ の端縁に係合し且つ副係合片２７ｂの自
由端がそれよりも内方の肩部Ｗ１ に係合するように双
方の自由端がベッド上面に下降して圧接し、水平部２４
ｂに沿うときには、肩部Ｗ１の一側縁が縫合部を通る布
送り線を越えてバインダー１７により三つ折りにされた
テープＴの折り目内方に挿入するように、押え足１３の
布送り方向手前に向って布送り方向との交叉方向（第１
図時計方向）へ水平移動する。When the pin 25 moves along the grooved cam 24 in association with the lowering of the actuating piece 26 by the action of the air cylinder 21, the free end of the main engaging piece 27a moves along the vertical portion 24a of the grooved cam 24, and the free end of the main engaging piece 27a touches the edge of the shoulder W1. and the free end of the sub-engaging piece 27b engages with the shoulder W1 on the inside of the sub-engaging piece 27b.
When moving along line b, the presser foot 13 is moved in the fabric feeding direction so that one side edge of the shoulder W1 crosses the fabric feeding line passing through the seam and is inserted into the crease of the tape T folded into three by the binder 17. Direction crossing the cloth feeding direction (first direction) towards the front
horizontally (clockwise).

布案内装置２８について、布搬入装置１８の主係合片２
７ａがベッド７上に下降するとき、その自由端の布送り
方向先端縁及び一側端縁に沿う外方の三位置においてベ
ッド７の上面に上下に貫通する案内孔２９を形成し、こ
の各案内孔２９よりベッド上面の上方へ出没可能とする
三筒の突出部３０を直立して設けた作動板３１がベッド
７下面に固定した支持板３２に対し水平軸線を中心に回
動可能に支持してあり、各突出部３０には巻きはね３３
を巻装する。Regarding the cloth guiding device 28, the main engaging piece 2 of the cloth carrying device 18
When 7a is lowered onto the bed 7, guide holes 29 are formed vertically through the upper surface of the bed 7 at three outer positions along the leading edge in the cloth feeding direction and one side edge of the free end. An operating plate 31, which has three cylindrical protrusions 30 upright that can be retracted and retracted upward from the upper surface of the bed through the guide hole 29, is rotatably supported around a horizontal axis with respect to a support plate 32 fixed to the lower surface of the bed 7. Each protrusion 30 has a winding spring 33.
Wrap it around.

機枠に固定したエアシリンダ３４のプランジャー３５を
作用板３１に係合可能とし、その作用により作用板３１
を回動して巻きばね３３をベッド７との間でたわませな
がら突出部３０をベッドＩ上方へ案内孔２９により突出
させる。The plunger 35 of the air cylinder 34 fixed to the machine frame can be engaged with the action plate 31, and its action causes the action plate 31 to
is rotated to bend the coiled spring 33 between it and the bed 7, while causing the protrusion 30 to protrude above the bed I through the guide hole 29.

補助押え装置３７（第１図）について、中間部を布送り
方向との直交軸３８により機枠に回動可能に支持した棒
状の抑圧体３９は、その一端を折曲して押え部３９ａを
形成し、この押え部３９ａを布押え足１３の布送り方向
手前の一側方において針板３上面に対向配置し、上方へ
起立した他端を自身の回転軸線方向に沿い折曲して係合
部３９ｂとし、その係合部３９ｂより間隙をもつＵ字状
の嵌合部３９Ｃを水平方向に突出する。Regarding the auxiliary presser device 37 (Fig. 1), a rod-shaped suppressor 39 whose intermediate portion is rotatably supported on the machine frame by an axis 38 perpendicular to the cloth feeding direction is bent at one end to form a presser portion 39a. The presser foot 39a is arranged opposite to the upper surface of the throat plate 3 on one side of the presser foot 13 in front of the cloth feed direction, and the other end rising upward is bent along its own rotation axis direction to engage the presser foot 39a. A U-shaped fitting portion 39C with a gap is protruded horizontally from the fitting portion 39b.

この押圧体３９は一端を機枠に係止した巻きはね４０に
より常には押え部３９ａが針板３上面に圧接するように
回動力向（第１図時計方向）への弾性力を受けている。This pressing body 39 receives an elastic force in the rotating direction (clockwise in FIG. 1) by a winding spring 40 whose one end is fixed to the machine frame so that the presser part 39a is always pressed against the upper surface of the throat plate 3. There is.

機枠に固定したエアシリンダ４１のプランジャ４２に連
結棒４３を固定し、連結棒４３は下方へ傾斜する案内部
４３ａをもち、案内部４３ａを押圧体３９の嵌合部３９
Ｃの間隙内に貫通して係合部３９ｂ下端に対向配置し、
エアシリンダ４１の作用によってプランジャー４２が上
昇するのに関連し、連結棒４３の上昇によって傾斜案内
部４３ａが押圧体３９の係合部３９ｂ下端に係合すると
き、保合部３９ｂはその傾斜による側方向（布送り方向
先方）への分力を受け、押圧体３９は巻きばね４０の弾
性力に抗して押え部３９ｂが針板３から上方へ離れるよ
うに反時計方向（第１図）へ回動する。A connecting rod 43 is fixed to a plunger 42 of an air cylinder 41 fixed to the machine frame, and the connecting rod 43 has a guide portion 43a that slopes downward.
penetrating into the gap C and facing the lower end of the engaging portion 39b;
When the plunger 42 is raised by the action of the air cylinder 41, and the inclined guide part 43a engages with the lower end of the engaging part 39b of the pressing body 39 due to the rising of the connecting rod 43, the retaining part 39b In response to the component force in the side direction (forward in the cloth feeding direction), the pressing body 39 resists the elastic force of the coiled spring 40 and moves counterclockwise (see FIG. ).

またこの実施例の押え足１３は、主送り歯５に対向する
主部１３ａ及びその外側端より抑圧体３９の押え部３９
ａの側方まで布送り方向に沿い伸長する延長部１３ｂと
、押え足１３に対し基端を上下動可能に支持し、且つ副
送り歯６に対向して常には下方への弾性力を受は延長部
１３ｂに沿って押え部３９ａ側方に伸長する径部１３Ｃ
とにより構成される。Further, the presser foot 13 of this embodiment has a main portion 13a facing the main feed dog 5 and a presser portion 39 of the suppressor 39 from the outer end thereof.
an extension part 13b extending along the cloth feeding direction to the side of a; is a diameter portion 13C extending laterally to the holding portion 39a along the extension portion 13b.
It is composed of

また針板３はその主送り歯５に対応し針落ち点より布送
り方向手前側をテープＴの厚さ分だけ低くして段部３ａ
とし、搬入装置１８の係合片２７による身頃Ｗの搬入を
容易にし且つテープＴがめくれないようにテープＴの折
曲下端が挿入可能になっている（第５，６図）。In addition, the throat plate 3 corresponds to the main feed dog 5, and the front side of the needle drop point in the cloth feeding direction is lowered by the thickness of the tape T to form a stepped portion 3a.
The bent lower end of the tape T can be inserted to facilitate the loading of the body W by the engagement piece 27 of the loading device 18 and to prevent the tape T from turning over (FIGS. 5 and 6).

テープテンション装置４４（第２図）について、ミシン
１の手前側に一対の支持台４５を固定してそれぞれに後
述する三筒のテープ案内棒を設ける。Regarding the tape tension device 44 (FIG. 2), a pair of support stands 45 are fixed to the front side of the sewing machine 1, and three tape guide rods, which will be described later, are provided on each support stand 45.

その双方の支持台４５において、直線上の経路を移動す
るテープＴの移動経路の一側方に対向して起立する固定
案内棒４６を各支持台４５に固定し、各支持台４５に垂
直軸線を中心に回動可能に回転体４７を各別に支持し、
その回転体４７に固定案内棒４６と同じくテープの直線
移動経路の一側方に対向する第一案内棒４８ａ及び他側
方に対向する第二案内棒４８ｂとを起立して固定し、テ
ープＴが直線経路に沿い移送されるときにはテープＴ移
動方向手前の回転体４７の第−及び第二案内棒４８ａ、
ｂと移動方向先方の回転体４７の第二案内棒４８ｂとは
テープＴには触れない。In both of the support stands 45, a fixed guide rod 46 that stands up on one side of the moving path of the tape T moving along a linear path is fixed to each support stand 45, and a vertical axis is attached to each support stand 45. The rotating bodies 47 are individually supported so as to be rotatable around the center.
A first guide rod 48a facing one side of the linear movement path of the tape and a second guide rod 48b facing the other side are erected and fixed to the rotary body 47 in the same way as the fixed guide rod 46, and the tape T When the tape T is transported along a straight path, the first and second guide rods 48a of the rotating body 47 in the forward direction of the tape T movement direction;
b and the second guide rod 48b of the rotating body 47 in the forward direction of movement do not touch the tape T.

機枠に固定したエアシリンダ４９のプランジャ５０を双
方の支持台４５の回転体４７に連結した作動体５１に連
結し、その作用時に第−及び第二案内棒４８ａ。A plunger 50 of an air cylinder 49 fixed to the machine frame is connected to an actuating body 51 connected to the rotating bodies 47 of both support stands 45, and when the actuating body 51 is actuated, the first and second guide rods 48a.

４８ｂがテープＴの移動経路に交叉するように回転体４
７を一定角度回動し、テープＴを固定案内棒４６と第−
及び第二案内棒４８ａ、ｂとの間でＬ字状に折曲して所
定張力を付与する。Rotating body 4 so that 48b intersects the moving path of tape T.
7 by a certain angle, and the tape T is connected to the fixed guide rod 46.
and the second guide rods 48a and 48b to form an L-shape and apply a predetermined tension.

°テープカッター装置５２（第１図）について、押え足
１３の布送り方向後方において、布送り方向に交叉し且
つ身頃Ｗに縫合されたテープＴの移動経路に対向して固
定刃５３をベッド７上面に固定配置し、ミシン１の後方
において布送り方向に沿う軸５４を中心に回動可能に支
持した移動刃５５は、その基端を機枠に固定した電磁石
５６に連結し、先端の刃部５５ａを固定刃５３上方に対
向し、電磁石５６の作用により回動するとき双方の協働
により固定刃５３上を移動するテープＴを切断可能とす
る。Regarding the tape cutter device 52 (FIG. 1), the fixed blade 53 is moved to the bed 7 at the rear of the presser foot 13 in the cloth feeding direction, crossing the cloth feeding direction and facing the moving path of the tape T sewn to the body W. A movable blade 55 is fixedly arranged on the upper surface and rotatably supported at the rear of the sewing machine 1 around a shaft 54 along the cloth feeding direction.The base end of the movable blade 55 is connected to an electromagnet 56 fixed to the machine frame. The portion 55a faces above the fixed blade 53, and when rotated by the action of the electromagnet 56, the tape T moving on the fixed blade 53 can be cut by the cooperation of both parts.

ブロアー装置（第１図）について、搬入装置１８の枠体
２０に固定した二本の管５７．５８は基端を圧縮空気源
（図示しない）に後述する電磁弁ｖ９．■１ｏを介して
各別に連通し、その一方の管５Ｔの開孔端は係合片２７
の下降位置上方に対向し且つ縫合部を通る布送り線に近
ずく布送り方向との交叉方向に沿い下方に向は開孔する
ように配置し、他方の管５８はそれより外方において布
送り方向に沿い下方に向は開孔するように配置する。Regarding the blower device (FIG. 1), two pipes 57 and 58 fixed to the frame 20 of the carrying device 18 have their proximal ends connected to a compressed air source (not shown) with solenoid valves v9. ■The open end of one of the tubes 5T is connected to the engagement piece 27 through the tube 1o.
The lowered position of the pipe 58 is opposite to the upper part and is located close to the cloth feed line passing through the seam portion, and is arranged so as to open downwardly along the direction crossing the cloth feed direction, and the other tube 58 is arranged so as to open downwardly toward the cloth feed line passing through the seam part. The holes are arranged downward along the feeding direction.

布センサー５９，６０ａ、６０ｂは光源（図示しない）
の光を受光してベッド７上の布の有無を検出し、それぞ
れの状態の布検知信号を発生する。Cloth sensors 59, 60a, and 60b are light sources (not shown)
The presence or absence of cloth on the bed 7 is detected by receiving the light, and a cloth detection signal for each state is generated.

布センサー５９はベッドＩの案内孔２９に対シ布送り方
向手前においてマユピユータ１４の側方に配置し縫い始
め時に身頃Ｗの肩部Ｗ１ を突出部３０に沿い配置する
のを検出するためのものであり、センサー６０ａ 、６
０ｂは押え足１３の側方において布送り方向に前後して
離隔して配置し、テープカッター装置５２の電磁石５６
の作動時期を設定するためのものであり、常にはその一
方のみが選択的に有効化される。The cloth sensor 59 is disposed in the guide hole 29 of the bed I on the side of the Mayupuputer 14 in front of the cloth feed direction, and is used to detect when the shoulder W1 of the body W is placed along the protrusion 30 at the beginning of sewing. and sensors 60a, 6
The electromagnet 56 of the tape cutter device 52 is arranged on the side of the presser foot 13 so as to be spaced apart from each other in the cloth feeding direction.
This is to set the activation timing of the two, and only one of them is selectively enabled at any given time.

即ち布送り方向後方のセンサー６０ａは身頃Ｗの布先端
縁からテープＴが所定長さ突出した状態で切断するとき
使用し、布送り方向手前のセンサー６０ｂは身頃Ｗの布
後端縁からテープＴを所定長さ突出した状態で切断する
ときに使用する。That is, the sensor 60a at the rear in the cloth feeding direction is used when cutting the body W with the tape T protruding a predetermined length from the leading edge of the cloth, and the sensor 60b at the front in the cloth feeding direction is used when cutting the tape T from the rear edge of the cloth of the body W. Used when cutting with a predetermined length protruding.

なお、本実施例のミシンは常には針下位置に対応して停
止するようにしである。It should be noted that the sewing machine of this embodiment is designed to always stop in accordance with the needle down position.

次にこの実施例の電気回路について説明する。Next, the electric circuit of this embodiment will be explained.

図において、■１〜Ｖ１ｏは各エアシリンダの電磁弁で
あり、■１は布搬入装置１８のエアシリンダ２１の電磁
弁、ｖ２は布案内装置２８のエアシリンダ３４の電磁弁
、■３は押え棒を昇降するためのエアシリンダ（図示し
ない）の電磁弁、■４ はマユピユータ１４をベッド７
上面に圧接するためのエアシリンダ（図示しない）の電
磁弁、■５は商運搬体１２を作動するエアシリンダ１１
の電磁弁、■６は差動送りを行なうためのエアシリンダ
８の電磁弁、■７はテープテンション装置４４のエアシ
リンダ４９の電磁弁、■８は補助押え装置３７のエアシ
リンダ４１の電磁弁であり、またＶ、はブロア装置の管
５７に発生する空気流を開閉する電磁弁、■１ｏは管５
８に発生する空気流を開閉する電磁弁である。In the figure, ■1 to V1o are the solenoid valves of each air cylinder, ■1 is the solenoid valve of the air cylinder 21 of the cloth carrying device 18, v2 is the solenoid valve of the air cylinder 34 of the cloth guide device 28, and ■3 is the solenoid valve of the presser foot. The solenoid valve of the air cylinder (not shown) for raising and lowering the rod, ■4, connects the Mayupu Yuta 14 to the bed 7.
A solenoid valve of an air cylinder (not shown) for press-contacting the upper surface; 5 is an air cylinder 11 that operates the commercial carrier 12;
6 is the solenoid valve of the air cylinder 8 for differential feeding, 7 is the solenoid valve of the air cylinder 49 of the tape tension device 44, and 8 is the solenoid valve of the air cylinder 41 of the auxiliary presser device 37. , V is a solenoid valve that opens and closes the air flow generated in the pipe 57 of the blower device, and ■1o is the pipe 5
This is a solenoid valve that opens and closes the air flow generated at 8.

これら電磁弁ｖ１〜■１゜はそれぞれの電磁弁制御回路
０１〜ＣＩＯの制御により各別に作用または不作用とな
る。These solenoid valves v1 to {circle around (1)} are individually activated or deactivated under the control of the respective solenoid valve control circuits 01 to CIO.

特に商運搬体１２のエアシリンダ１１の制御回路Ｃ５は
運搬体１２をミシン、駆動による身頃Ｗの移動速度とほ
ぼ等速で移動するように電磁弁■、を制御する。In particular, the control circuit C5 of the air cylinder 11 of the commercial carrier 12 controls the electromagnetic valve (2) so that the carrier 12 moves at approximately the same speed as the moving speed of the body part W driven by the sewing machine.

Ｚは警報を発生するブザーであり、ブザー制御回路Ｃ１
１の制御により作業者が設定する時間の間、間欠的に音
を発生する。Z is a buzzer that generates an alarm, and the buzzer control circuit C1
1, the sound is generated intermittently for a period of time set by the operator.

テープカッター装置５２の電磁石５６は電磁石制御回路
Ｃ１□の制御により一定時間付勢してから消勢する。The electromagnet 56 of the tape cutter device 52 is energized for a certain period of time and then deenergized under the control of the electromagnet control circuit C1□.

Ｍはミシン主軸（図示しない）に連結したモータであり
、モータ制御回路Ｃ１３の制御により駆動または停止す
るとともに、その駆動時には、低速１駆動回路Ｄ１また
は高速駆動回路Ｄ２の一方からの駆動電流により駆動さ
れる。M is a motor connected to the main shaft of the sewing machine (not shown), which is driven or stopped under the control of the motor control circuit C13, and when driven, is driven by a drive current from either the low-speed 1 drive circuit D1 or the high-speed drive circuit D2. be done.

低速１駆動回路Ｄ１はモータＭを一定の低速度で駆動し
、高速駆動回路Ｄ２は速度設定回路にの指定する中速度
、高速度の一方で駆動する。The low speed 1 drive circuit D1 drives the motor M at a constant low speed, and the high speed drive circuit D2 drives the motor M at either medium speed or high speed specified by the speed setting circuit.

速度設定回路には後述する縫 。区間Ｘ及びｙにおける
駆動速度を設定し、この速度はｘ ＞ ｙとする。The speed setting circuit has a stitch that will be described later. The drive speed in sections X and y is set, and the speed is set such that x > y.

ｘ、ｙは第１３図に示すアンダーシャツの肩部及び裸部
の直線区間Ｘ及び曲線区間ｙとを縫うための針数をそれ
ぞれ設定する針数設定回路であり、外部より作業者によ
って任意の針数に設定可能とする。x and y are stitch count setting circuits that respectively set the number of stitches to sew the straight section The number of stitches can be set.

Ｅｌ、Ｅ２は比較回路であり、針位置検知手段Ｐからの
位置信号（ミシン主軸の一回転につき一パルス発信）を
計数し、Ｅｌは針数設定回路Ｘの設定した針数と計数値
が一致するとき一致信号を発生し、Ｅ２はＥｌからの一
致信号発生に関連して位置信号を計数し始め、設定回路
Ｙの設定した針数と計数値が一致するとき一致信号を発
生する。El and E2 are comparison circuits that count the position signal from the needle position detection means P (one pulse is emitted per rotation of the main shaft of the sewing machine), and the count value of El matches the number of stitches set by the number of stitches setting circuit X. When this occurs, a coincidence signal is generated, and E2 starts counting position signals in relation to the generation of the coincidence signal from El, and when the number of stitches set by the setting circuit Y and the counted value match, a coincidence signal is generated.

Ｆは切換回路であり、電磁弁ｖ６〜Ｖ、の制御回路Ｃ６
〜Ｃ０及び高速駆動回路Ｄ２が縫い区間Ｘまたはｙの所
定の一方の縫目形成時に作動するように、作動時期を縫
い区間Ｘまたはｙの一方に選択的に設定するものである
。F is a switching circuit, which is a control circuit C6 for solenoid valves v6 to V.
The operation timing is selectively set in one of the sewing sections X or y so that the high-speed driving circuit D2 and C0 are activated when a stitch is formed in a predetermined one of the sewing sections X or y.

Ｓは差動送り及びテープテンション装置を作動する電磁
弁ｖ６．ｖ７を有効、無効に選択する選択スイッチであ
る。S is a solenoid valve v6. that operates the differential feed and tape tension device. This is a selection switch that enables or disables v7.

Ｔ１〜Ｔ１ｏはそれぞれ各別の設定時間△ｔ１〜△ｔｉ
ｏをもつタイマー回路であり、特にＴ１． Ｔ６゜Ｔ９
は外部より設定時間を調節可能とし、また、Ｔ３は搬入
装置１８の係合片２７によりベッド７との間に挾持され
た肩部Ｗ１が、送り歯５，６により送られて第一針の針
落ちが成されるまでタイマ一時間を設定してあり、Ｔ４
はＴ３の設定時間が切れた後に自身の設定時間が切れる
ようにしである。T1 to T1o are respective set times △t1 to △ti
It is a timer circuit with T1. T6゜T9
The setting time can be adjusted from the outside, and T3 has the shoulder W1, which is held between the bed 7 and the engagement piece 27 of the loading device 18, fed by the feed dogs 5 and 6 to feed the first needle. A timer is set for one hour until the needle drops, and T4
is set so that its own set time expires after the set time of T3 expires.

この発明は以上のような構成であり、この実施例の作用
を第１５図に示すタイムチャートに基づいて説明する。The present invention has the above-mentioned configuration, and the operation of this embodiment will be explained based on the time chart shown in FIG. 15.

初期状態において押え棒を昇降するエアシリンダ（図示
しない）及び布案内装置２８のエアシリンダ３４の両電
磁弁■２．ｖ３が開いており、押え足１３が針板３上方
へ離隔しているとともに作動板３１の突出部３０がベッ
ド７の案内孔２９より上方へ突出している。Both electromagnetic valves for the air cylinder (not shown) that raises and lowers the presser bar in the initial state and the air cylinder 34 of the cloth guide device 28; 2. v3 is open, the presser foot 13 is spaced apart above the throat plate 3, and the protrusion 30 of the actuating plate 31 protrudes upward from the guide hole 29 of the bed 7.

選択スイッチＳを「有効」側に選択しておく。Select the selection switch S to the "enabled" side.

アンダーシャツＷの肩部Ｗ、先端を第７図のように突出
部３０に沿わせて配置すると、センサー５９上に布が載
置するのでセンサー５９から布検知信号が発生し、ブザ
ーＺがタイマー回路Ｔ１の設定時間△ｔ１ の開音を間
欠的に発生するとともに管５７に空気流が発生するよう
にその電磁弁■、を開匂突出部３０に沿わせた肩部Ｗ１
は管５７からの空気流によってしわが伸ばされてベッド
７上面に密着し、△ｔ１経過後にブザーＺが鳴り止み且
つ電磁弁■、が閉じるとともに、搬入装置１８のエアシ
リンダ２１の電磁弁■１を開き且つ布案内装置２８のエ
アシリンダ３４の電磁弁ｖ２を閉じる。When the shoulder part W and the tip of the undershirt W are placed along the protruding part 30 as shown in FIG. The solenoid valve ■ is placed along the shoulder W1 along the opening protrusion 30 so as to intermittently generate an opening sound of the set time Δt1 of the circuit T1 and to generate an air flow in the pipe 57.
The wrinkles are smoothed out by the air flow from the pipe 57 and it comes into close contact with the top surface of the bed 7, and after Δt1 has elapsed, the buzzer Z stops sounding and the solenoid valve ■ closes, and the solenoid valve ■1 of the air cylinder 21 of the carrying device 18 closes. and close the solenoid valve v2 of the air cylinder 34 of the cloth guide device 28.

突出部３０はベッド７下方に下降し、ピン２５が溝カム
２４の垂直部２４ａに案内されて主副係合片２７ａ 、
２７ｂは下降して肩部Ｗ１をベッド７上面との間に挟圧
するとともに、ピン２５が水平部２４ｂに案内されて主
副係合片２７ａ、２７ｂ、は第７図矢印の方向へ移動し
、ベッド上面との間の肩部Ｗ１のその布送り方向に沿う
一側端をテープＴの折曲内に挿通ずるとともに先端縁を
押え足１３の先端に対応して配置する（第７図ＩＷ′１
）。The protruding part 30 descends below the bed 7, and the pin 25 is guided by the vertical part 24a of the grooved cam 24, and the main and sub-engaging pieces 27a,
27b descends and presses the shoulder portion W1 between it and the top surface of the bed 7, and the pin 25 is guided by the horizontal portion 24b, and the main and sub-engaging pieces 27a, 27b move in the direction of the arrow in FIG. Insert one end of the shoulder W1 between the top surface of the bed and the cloth feeding direction into the fold of the tape T, and place the leading edge corresponding to the leading end of the presser foot 13 (Fig. 7 IW' 1
).

この状態においてセンサー１５にはアンダーシャツＷの
側端縁が位置するので（第７図）センサー１５から布検
知信号が発生し、この信号によって電磁弁■３が閉じて
押え足１３を下降し、且つマルピレータ１４のエアシリ
ンダ（図示しない）の電磁弁Ｖ４を開いて先端の歯車１
６が身頃Ｗを挾んでベッド７面に適宜作用力によって押
圧するとともに、タイマーＴ２．Ｔ３をセットする。In this state, since the side edge of the undershirt W is located on the sensor 15 (FIG. 7), a cloth detection signal is generated from the sensor 15, and this signal closes the solenoid valve 3 to lower the presser foot 13. Then, open the solenoid valve V4 of the air cylinder (not shown) of the marpilator 14 to open the gear 1 at the tip.
6 holds the body W and presses it against the surface of the bed 7 with an appropriate force, and at the same time, the timer T2. Set T3.

タイマーＴ２の△ｔ２経過後、モータ制御回路Ｃ１３の
出力により、低速駆動回路Ｄ１の設定する低速度でモー
タＭは駆動されるとともに、切換回路Ｆに作用してアン
ダーシャツの直線区間Ｘ（第１３図）を縫うように回路
を設定し、同時に管５８の電磁弁ｖ１ｏを開いて布送り
方向先方に向けて空気流を発生してベッド７上の身頃Ｗ
を布送り方向先方へ移送するように作用し、またタイマ
ー回路Ｔ、、Ｔ５をセットする。After Δt2 of the timer T2 has elapsed, the motor M is driven by the output of the motor control circuit C13 at a low speed set by the low-speed drive circuit D1, and also acts on the switching circuit F to change the straight section X (13th ), and at the same time open the solenoid valve v1o of the pipe 58 to generate an air flow in the forward direction in the cloth feeding direction to sew the body W on the bed 7.
The timer circuits T, , T5 are set.

ミシン１は起動してから△ｔ４の間低速で駆動され、そ
の間に身頃ＷとテープＴとを送り歯により縫合部へ移送
し、その布送り方向先端に縫目を形成するのとほぼ同時
に（正確には針が下位置に下降したとき）、タイマー回
路Ｔ３の設定時間△ｔ３が終了し、エアシリンダ２１の
電磁弁■１が閉じて搬入装置１８の係合片２７が復帰し
、その直後にタイマー回路Ｔ４の設定時間△ｔ４が終了
して高速駆動回路Ｄ２を作用状態にすると、回路Ｄ２は
速度設定回路にの指定する高速度でモータＭを駆動する
ようにモータＭに電流を供給し、その後に身頃Ｗの先端
縁はセンサー６０ａに達して検知信号を発生し、タイマ
ー回路Ｔ６をセットする。The sewing machine 1 is driven at low speed for a period of Δt4 after being started, during which time the body W and tape T are transferred to the sewing part by the feed dog, and a seam is formed at the tip in the cloth feed direction almost at the same time ( To be precise, when the needle descends to the lower position), the set time Δt3 of the timer circuit T3 ends, the solenoid valve ■1 of the air cylinder 21 closes, the engagement piece 27 of the carry-in device 18 returns, and immediately after that When the set time Δt4 of the timer circuit T4 ends and the high-speed drive circuit D2 is activated, the circuit D2 supplies current to the motor M so as to drive the motor M at the high speed specified by the speed setting circuit. After that, the leading edge of the body W reaches the sensor 60a, generates a detection signal, and sets the timer circuit T6.

その直後にタイマー回路Ｔ５の設定時間△ｔ５が終了し
て運搬体１２のエアシリンダ１１の電磁弁■５を開き、
運搬体１２はミシン１による身頃Ｗの移動速度とほぼ等
速で布送り方向先方へ移動する。Immediately after that, the set time Δt5 of the timer circuit T5 ends, and the solenoid valve ■5 of the air cylinder 11 of the carrier 12 is opened.
The carrier 12 moves forward in the cloth feeding direction at approximately the same speed as the movement speed of the body W by the sewing machine 1.

タイマー回路Ｔ６の設定時間△ｔ６が終了して電磁石５
６が付勢され、テープカッタ装置５２の可動刃５５が回
動して固定刃５３との協働により身頃Ｗの布先端より突
出するテープＴを切断する。When the set time Δt6 of the timer circuit T6 ends, the electromagnet 5
6 is energized, the movable blade 55 of the tape cutter device 52 rotates and cuts the tape T protruding from the tip of the cloth of the body W in cooperation with the fixed blade 53.

ミシンの起動に伴ないマニピレータ１４の歯車１６はセ
ンサー１５の布検知動作に基づいて、身頃Ｗの側端縁を
縫合部へ送り込むように布送り方向との交叉方向へ身頃
Ｗを移動制御し、また比較回路Ｅ１ は針位置検知手段
Ｐからの針位置信号を計数する。When the sewing machine is started, the gear 16 of the manipulator 14 controls the movement of the body W in a direction intersecting the cloth feeding direction, based on the cloth detection operation of the sensor 15, so as to feed the side edge of the body W to the seam part. Further, the comparison circuit E1 counts the needle position signal from the needle position detection means P.

その計数値が直線区間Ｘを縫うために必要な針数に予め
設定した針数設定回路Ｘの設定針数と一致するとき、即
ち直線区間Ｘと曲線区間ｙとの境が機台部に達したとき
、比較回路Ｅ１から一致信号が発生して比較回路Ｅ２を
作用状態にするとともに切換回路Ｆを曲線区間ｙを縫う
ための回路状態に切換え、その出力によってモータＭの
駆動速度が設定回路Ｋを制御する。When the counted value matches the number of stitches set in the stitch number setting circuit X, which is set in advance to the number of stitches required to sew the straight section When this happens, a matching signal is generated from the comparator circuit E1, which puts the comparator circuit E2 into the active state and switches the switching circuit F to the circuit state for sewing the curved section y. control.

またその出力により制御回路０６〜Ｃ０を各電磁弁■６
〜■、が開くように制御する。Also, depending on the output, control circuits 06 to C0 are controlled by each solenoid valve ■6.
~■, is controlled so that it opens.

この曲線区間ｙを縫合するのには困難が伴なう。It is difficult to stitch this curve section y.

即ち、マニピレータ１４の歯車１６はセンサー１５上に
布側端縁が常に位置するように布を制御するために、布
側端縁の曲線が太きいときには第９図に示すようにセン
サー１５の布送り方向先方の布側端縁が縫合部を通る布
送り線に対して外側にはずれる（二点鎖線）。That is, the gear 16 of the manipulator 14 controls the cloth so that the cloth side edge is always positioned on the sensor 15, so that when the cloth side edge has a thick curve, the cloth of the sensor 15 is moved as shown in FIG. The fabric side edge on the front side in the feeding direction moves outward with respect to the fabric feeding line passing through the seam portion (double-dashed line).

従って縫合部に送り込まれる身頃ＷがテープＴの折目か
らはずれたり、ずれた状態のまま縫合されてしまう。Therefore, the body W fed into the stitching portion may be deviated from the folds of the tape T, or may be sewn in a deviated state.

しかしここではミシンモータＭの速度を低くシてマニピ
レーク１４による布コントロールを容易にするとともに
、管５７の電磁弁Ｖ９が開かれて空気流が矢印ｇ方向（
第９図）に向けてベッド７上の身頃Ｗに噴射され、また
電磁弁■８が開かれて補助押え装置３７の押圧体３９が
回動し、その押え部３９ａが押え足１３に対し布送り方
向手前における側方において身頃Ｗをベッド７面に圧接
することにより、押え部３９ａを中心に反時計方向（第
９図）への回転モーメントを身頃Ｗに与えるとともに、
この空気流と回転モーメントによってセンサー１５と縫
合部との間の身頃Ｗは前記布送り線方向へ作用力を受け
てその端縁をテープＴの折曲部内に沿わせる。However, here, the speed of the sewing machine motor M is set low to facilitate cloth control by the manipulator rake 14, and the solenoid valve V9 of the pipe 57 is opened to direct the air flow in the direction of arrow g (
9) on the body W on the bed 7, the solenoid valve 8 is opened, the presser body 39 of the auxiliary presser device 37 rotates, and the presser foot 39a is pressed against the presser foot 13. By pressing the body W against the bed 7 side at the front side in the feeding direction, a rotation moment is applied to the body W in the counterclockwise direction (FIG. 9) around the presser part 39a, and
Due to this airflow and rotational moment, the body part W between the sensor 15 and the seam part receives a force acting in the direction of the cloth feed line, causing its edge to lie along the inside of the folded part of the tape T.

この押え部３９ａにより身頃Ｗが前記布送り線方向に寄
せられるとき、押え足１３の布送り方向手前において、
押え足１３の延長部１３ｂがない場合（第１０図口）に
は寄せられた身頃ＷがテープＴと押え足１３の径部１３
Ｃとの間で大きなしわになるが、本実施例のように延長
部１３ｂが設けである場合には延長部１３ｂによって身
頃Ｗを押えるので大きなしわは作られない。When the body W is moved in the direction of the cloth feeding line by this presser foot 39a, in front of the presser foot 13 in the cloth feeding direction,
When the extension part 13b of the presser foot 13 is not present (as shown in FIG.
However, if the extension part 13b is provided as in this embodiment, the body part W is held down by the extension part 13b, so no large wrinkles are formed.

またアンダーシャツには一方向に伸縮自在なメリヤス布
地が使われ且つこのメリヤス地を横方向に伸縮するよう
に縫製するのは周知のことであるが、縦方向に沿う直線
区間Ｘと横方向に沿う曲線区間ｙとを縫う場合に等しい
押え圧を与えると、曲線区間ｙを縫うときには布地が伸
ばされたままテープＴとともに縫合されるので、身頃と
テープとの正味の送り量が異なり、縫合されてから身頃
Ｗは収縮するから縫いしわを生じる。Furthermore, it is well known that undershirts are made of knitted fabric that is stretchable in one direction, and that this knitted fabric is sewn to stretch in the horizontal direction. If the same presser foot pressure is applied when sewing the curved section y along the curved section y, the fabric will be sewn together with the tape T while being stretched when sewing the curved section y, so the net feed amount between the body and the tape will be different and the stitching will be different. After that, the body W shrinks, resulting in wrinkles.

そこで本実施例のようにエアシリンダ８の電磁弁■６を
開いて身頃Ｗを押え足の径部１３Ｃとの間で挾みながら
移送する副送り歯６の送り量が主送り歯５に対し多くな
るように“差動送り″をさせると、前傾Ｗの伸長度は減
少されて送られる。Therefore, as in this embodiment, by opening the solenoid valve 6 of the air cylinder 8, the feed amount of the auxiliary feed dog 6, which transfers the body part W while sandwiching it between the diameter part 13C of the presser foot, is set relative to the main feed dog 5. If the "differential feed" is performed to increase the amount, the degree of elongation of the forward tilt W is decreased and fed.

またエアシリンダ４９の電磁弁ｖ７を開いてエアシリン
ダ４９を作用しテープテンション装置４４の回転体４７
を回動させ、第−及び第二案内棒４８ａ 、４８ｂがテ
ープＴの移動経路に交叉してテープを１＜」字状に折曲
すると、テープＴにはテンションが加わって縫合部との
間のテープは延ばされながら縫合部に移送される。In addition, the solenoid valve v7 of the air cylinder 49 is opened to operate the air cylinder 49, and the rotating body 47 of the tape tension device 44 is
When the first and second guide rods 48a and 48b intersect the moving path of the tape T and bend the tape into a 1<'' shape, tension is applied to the tape T and the gap between the tape T and the sutured portion is The tape is transferred to the suture area while being stretched.

この差動送りによる身頃Ｗの伸長の減少及びテープテン
ションによるテープの伸長による相乗効果により、縫合
時の身頃ＷとテープＴの伸び量を等しくし縫合後の身頃
Ｗには縫いしわが生じない。Due to the synergistic effect of the reduction in elongation of the body W due to differential feeding and the elongation of the tape due to tape tension, the amount of elongation of the body W and tape T during stitching is equalized, and no sewing wrinkles occur on the body W after stitching.

切換回路Ｆを切換えてから比較回路Ｅ２は針位置検知手
段からの針位置信号を計数し、その計数値が針数設定回
路Ｙの設定針数と一致するとき、即ち曲線区間ｙと次の
直線区間Ｘとの境が縫合部に達したとき、比較回路Ｅ２
から一致信号が発生して切換回路Ｆを直線区間Ｘる縫う
ための回路状態に切換え、電磁弁ｖ６．ｖ７．■、を閉
じ、差動、テープテンション、送り込みブロアの各装置
を不作用として、モータＭを再は高速度で駆動するよう
に速度設定回路Ｋを制御する。After switching the switching circuit F, the comparator circuit E2 counts the needle position signal from the needle position detection means, and when the counted value matches the number of stitches set by the number of stitches setting circuit Y, that is, between the curve section y and the next straight line. When the border with section X reaches the sutured part, comparison circuit E2
A coincidence signal is generated from , the switching circuit F is switched to the circuit state for sewing the straight section X, and the solenoid valve v6. v7. (2) is closed, and the speed setting circuit K is controlled so that the differential, tape tension, and feed blower devices are inactive, and the motor M is driven at a high speed.

（しかし比較回路Ｅ１は有効化されない。(However, the comparison circuit E1 is not enabled.

）身頃Ｗの布送り方向後端縁がセンサ５９を通過すると
、その検知信号によってタイマー回路Ｔ７がセットされ
、その設定時間△ｔ７の間高速駆動回路Ｄ２は不作用と
なり、低速駆動回路り、によりモータＭが所定の低速駆
動となってから身頃Ｗの後端縁はマユピレータ１４を通
過し、さらにセンサー１５が身頃Ｗの布後端縁を検知す
るとその検知信号によってタイマー回路Ｔ８をセットし
、その設定時間△ｔ８の間にタイマー回路Ｔ７の設定時
間△ｔ７が終了して高速駆動回路Ｄ２は再びモータＭを
高速駆動させる。) When the rear edge of the body W in the cloth feeding direction passes the sensor 59, the detection signal sets the timer circuit T7, and the high-speed drive circuit D2 becomes inactive for the set time Δt7, and the low-speed drive circuit After the motor M is driven at a predetermined low speed, the rear edge of the body W passes through the Mayupulator 14, and when the sensor 15 detects the cloth rear edge of the body W, the timer circuit T8 is set by the detection signal, and the timer circuit T8 is set. During the set time Δt8, the set time Δt7 of the timer circuit T7 ends, and the high-speed drive circuit D2 drives the motor M at high speed again.

身頃Ｗはマユピレータ１４に押圧されている間は、その
押圧力により縫合部との間において伸長されて送られて
いたが、後端がマニピレータ１４を通過してその押圧力
を解放されたとき一時的に収縮されてから定常の状態に
戻る。While the body part W was being pressed by the manipulator 14, it was stretched and fed between the seam part by the pressing force, but when the rear end passed through the manipulator 14 and the pressing force was released, the body part W was temporarily stretched. is contracted and then returns to a steady state.

この実施例においては身頃Ｗが定常状態に戻ってからタ
イマー回路Ｔ７の設定時間△ｔ７が終了するようにして
あり、従ってその後にミシンは高速７駆動される。In this embodiment, the set time Δt7 of the timer circuit T7 ends after the body W returns to a steady state, and the sewing machine is then driven at high speed 7.

モータＭが高速、駆動された直後にタイマー回路Ｔ８の
設定時間△ｔ８が終了し、電磁弁■４が閉じてマニピレ
ータ１４をベッド７上面から上方へ離隔する。Immediately after the motor M is driven at high speed, the set time Δt8 of the timer circuit T8 ends, the solenoid valve 4 closes, and the manipulator 14 is separated upward from the upper surface of the bed 7.

センサ６０ｂが身頃Ｗの後端を検出し、その検知信号に
よってクイマー回路Ｔ、をセットし、その設定時間△ｔ
、が終了するとき、エアシリンダ１１の電磁弁■、を閉
じて運搬体１２を復帰するとともに、電磁石５６を付勢
してテープカッター装置５２の可動刃５５を作動し、身
頃Ｗの後端に連なるテープＴを切断するとともに、電磁
弁ｖ２を開いて布案内装置２Ｂのエアシリンダ３４を作
用して突出部３０がベッド７の案内孔２９より突出する
ように作動板３１を回動し、またこのとき、モータ制御
回路Ｃ１３に作用してモータＭを停止させミシン１を針
下位置に停止する。The sensor 60b detects the rear end of the body part W, and uses the detection signal to set the swimmer circuit T, and the set time Δt
When , is completed, the solenoid valve (■) of the air cylinder 11 is closed to return the carrier 12, and the electromagnet 56 is energized to operate the movable blade 55 of the tape cutter device 52 to cut the rear end of the body W. At the same time as cutting the continuous tape T, the solenoid valve v2 is opened and the air cylinder 34 of the cloth guide device 2B is activated to rotate the actuating plate 31 so that the protruding part 30 protrudes from the guide hole 29 of the bed 7. At this time, it acts on the motor control circuit C13 to stop the motor M and stop the sewing machine 1 at the needle down position.

（定位置停止手段は周知であるので図示しない。(The fixed position stopping means is not shown because it is well known.

）これと同時に運搬体１２のエアシリンダ１１の電磁弁
■５が閉じて原位置に復帰し、管５８の電磁弁■１ｏを
閉じて空気流を遮断し、さらに補助押え装置３７のエア
シリンダ４１の電磁弁ｖ８が閉じて押圧体３９は復帰す
るとともにタイマー回路Ｔ１０をセットする。) At the same time, the solenoid valve ■5 of the air cylinder 11 of the carrier 12 closes and returns to its original position, the solenoid valve ■1o of the pipe 58 is closed to cut off the air flow, and the air cylinder 41 of the auxiliary holding device 37 is closed. When the solenoid valve v8 closes and the pressing body 39 returns to its original position, the timer circuit T10 is set.

抑圧体３９がこの縫い終了時まで作用していることによ
り、身頃Ｗの後端縁がマニピレータ１４を通過してから
の布送りを安定させる。Since the suppressing body 39 acts until the end of this sewing, cloth feeding after the rear edge of the body W passes through the manipulator 14 is stabilized.

即ち、第１０図イから明らかなように針落ち点より布送
り方向手前では身頃Ｗに直接係合するのは副送り歯６の
みであり、この副送り歯６は針落ち点を通る布送り線に
対し外方に位置するために身頃Ｗには外方への回転モー
メントが加わり、身頃Ｗの後端縁がマニピレータ１４か
ら抜けてから縫合部へ送られるまでの間に第１０図左方
（第７図左方）へ寄せられようとしてテープＴの折曲部
内からはずれてしまうが、抑圧体３９の押え部３９ａが
身頃に係合して前記したように送り歯６とは反対方向の
回転モーメントを与え、身頃Ｗの端縁を常にテープＴの
折曲部内に位置させるように作用する。That is, as is clear from FIG. 10A, only the sub-feed dog 6 directly engages the body part W before the needle drop point in the fabric feed direction, and this sub-feed dog 6 is used to feed the fabric past the needle drop point. Since the body W is located outward from the line, an outward rotational moment is applied to the body W, and after the rear end edge of the body W comes out of the manipulator 14 until it is sent to the suture section, the body W rotates to the left in FIG. (Left side in Figure 7), the tape T comes off from inside the folded part, but the presser part 39a of the suppressor 39 engages with the body, and as mentioned above, the tape T comes off in the opposite direction to the feed dog 6. It acts to apply a rotational moment so that the edge of the body W is always located within the folded portion of the tape T.

その後にタイブー回路Ｔ１ｏの設定時間△ｔｔｏが終了
して電磁弁Ｖ３を閉じ押え足１３を針板３上方へ離隔す
る。Thereafter, the set time Δtto of the tie-boo circuit T1o ends, and the solenoid valve V3 is closed to separate the presser foot 13 above the throat plate 3.

糸通し等の作業のために縫合部手前を広く使用したいと
きに・ま、布搬入装置１８の枠体２０を係止片３６より
はずして垂直軸線を中心にミシン後方へ回動することに
より、縫合部手前を広くして糸通し等の作業は容易とな
る。When you want to use the front side of the sewing section widely for threading or other tasks, by removing the frame 20 of the fabric loading device 18 from the locking piece 36 and rotating it toward the rear of the sewing machine around the vertical axis, The front side of the suture part is widened, making threading and other operations easier.

以上のようにこの発明によれは、 縫合部よりも布送り方向手前に配置し縫合部を通る布送
り線に対し一側方へ離隔し且つ布送り方向に平行する固
定の基準線上における布の布送り方向に沿う縫合予定縁
の有無を検出しそれぞれの信号を発生するセンサ１５と
、 センサよりも布送り方向手前に配置しセンサの信号に応
答して布送り方向との平行軸線を中心に正逆回転可能と
した回転体１６を自由端にもち回転体をベッド上面に押
圧するマニピレーク１４とを備えたミシンにおいて、布
の他側端縁を保持する運搬手段を布に針落ちが成されて
から準備位置よりミシンの布送りと略等しい速度で移動
するようにしたことにより、縫い始め時に縫合部により
布が押えられてから運搬手段が布の他側端縁を保持して
布送り方向先方へ移動するので、針落ちがなされる前に
運搬手段により布が動かされてマユピレークからはずれ
ることがないから、マニピレータにより正確に布を制御
でき、縫製作業を確実にして能率を向上するとともに、
縫目形成を確実にして商品の品質を向上する等の効果が
得られる。As described above, according to the present invention, the fabric is placed in front of the stitched portion in the fabric feeding direction, is spaced to one side with respect to the fabric feeding line passing through the stitched portion, and is placed on a fixed reference line parallel to the fabric feeding direction. A sensor 15 detects the presence or absence of an edge to be sewn along the cloth feeding direction and generates a respective signal, and a sensor 15 is placed in front of the sensor in the cloth feeding direction and responds to the sensor's signal to detect the presence or absence of an edge to be sewn along the cloth feeding direction. In a sewing machine equipped with a manipulator rake 14 which has a rotary body 16 capable of forward and reverse rotation at its free end and presses the rotary body against the upper surface of the bed, a needle drop is made on the cloth using a conveying means that holds the other edge of the cloth. By moving from the preparation position at a speed approximately equal to the cloth feed of the sewing machine, the conveying means holds the other edge of the cloth and moves in the cloth feed direction after the cloth is pressed by the seam at the beginning of sewing. Since the fabric is moved forward, the fabric is not moved by the transportation means and removed from the Mayupiraek before the needle drops, so the fabric can be controlled accurately by the manipulator, making the sewing work more reliable and improving efficiency.
Effects such as improving product quality by ensuring seam formation can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本実施例のミシンを後方側から見た斜視図、第
２図はミシンを手前側から見た斜視図、第３図は押え足
、送り歯、針板の斜視図、第４図は搬入装置の斜視図、
第５図は搬入装置の初期状態の作用を示す部分断面図、
第６図は搬入装置の後期作用を示す部分断面図、第７図
は搬入装置の作用を示す縫合部付近の平面図、第８図は
案内装置の斜視図、第９図は布の移動を示す縫合部付近
の平面図、第１０図イは本実施例の布送り部の断面図、
Ｃｕｔ従来の布送り部の断面図、第１１図はテープの折
曲状態を示す斜視図、第１２図は身頃とテープの縫合状
態を示す斜視図、第１３図はアンダーシャツの斜視図、
第１４図は電気回路のブロック図、第１５図はタイムチ
ャートである。Fig. 1 is a perspective view of the sewing machine of this embodiment as seen from the rear side, Fig. 2 is a perspective view of the sewing machine as seen from the front side, Fig. 3 is a perspective view of the presser foot, feed dog, and throat plate; The figure is a perspective view of the loading device.
FIG. 5 is a partial sectional view showing the operation of the loading device in its initial state;
Fig. 6 is a partial cross-sectional view showing the late-stage action of the carrying device, Fig. 7 is a plan view of the vicinity of the sutured portion showing the action of the carrying device, Fig. 8 is a perspective view of the guide device, and Fig. 9 shows the movement of the cloth. Fig. 10A is a sectional view of the cloth feeding section of this embodiment;
Cut A cross-sectional view of a conventional cloth feeding section, FIG. 11 is a perspective view showing the folded state of the tape, FIG. 12 is a perspective view showing the sewing state of the body and the tape, and FIG. 13 is a perspective view of the undershirt.
FIG. 14 is a block diagram of the electric circuit, and FIG. 15 is a time chart.

Claims (1)

【特許請求の範囲】 １ 主軸の回転に連動して上下動する針及び送り運動を
行なうように針落ち点の布送り方向前後に配置した送り
歯５，６並びに下端に送り歯上力に接触する押え足１３
を支持し機枠に上下動可能に支持し常には下方への弾性
力を受ける押え棒とから成る縫合部と、 縫合部よりも布送り方向手前に配置し縫合部を通る布送
り線に対し一側方へ離隔し且つ布送り方向に平行する固
定の基準線上における布の布送り方向に沿う縫合予定縁
の有無を検出しそれぞれの信号を発生するセンサ１５と
、 センサよりも布送り方向手前に配置しセンサの信号に応
答して布送り方向との平行軸線を中心に正逆回転可能と
した回転体１６を自由端にもち回転体をベッド上面に押
圧するマニピレーク１４とを備えたミシンにおいて、 針落ち点よりも布送り方向手前の送り歯上力の布の存在
に関連して検知信号を発生する検知手段と、ミシンを停
止する第−状態及びミシンを駆動する第二状態とに切換
可能とした駆動回路Ｃ１３゜Ｄｌ、 Ｄ、２と、 布の縫合予定縁とは縫合部を挾む反対側の布送り方向に
沿う側端縁を保持可能とし縫合部よりも布送り方向手前
の準備位置及び縫合部よりも布送り方向先方の作用位置
とに縫合部を通る布送り線に対し他側方へ離隔し且つ布
送り方向に沿う一同定線上を移動可能とした運搬手段１
２と、作用よりミシンの布送り速度に等しい速度で運搬
手段を準備位置から作用位置へ移動するように連結した
作動手段１１ 、 Ｖ５と、 常には駆動回路を第一状態とし検知信号の発生に関連し
て１駆動回路を第二状態とし布の先端に針落ちが成され
た後に作動手段を作用するように関連した制御回路とを
備えたミシンの布制御装置。[Scope of Claims] 1. A needle that moves up and down in conjunction with the rotation of the main shaft, feed dogs 5 and 6 arranged before and after the needle drop point in the cloth feed direction to perform a feed motion, and a lower end that contacts the upper force of the feed dog. presser foot 13
The presser bar is supported by a presser bar that is movable up and down on the machine frame and always receives a downward elastic force. A sensor 15 that detects the presence or absence of an edge to be sewn along the cloth feeding direction of the cloth on a fixed reference line that is spaced apart to one side and parallel to the cloth feeding direction, and generates respective signals, and a sensor 15 located before the sensor in the cloth feeding direction. In a sewing machine equipped with a manipulator rake 14 which has a rotary body 16 at its free end which is arranged at a position and can rotate forward and backward about an axis parallel to the cloth feeding direction in response to a sensor signal, and which presses the rotary body against the upper surface of the bed. , a detection means that generates a detection signal in relation to the presence of a fabric with a force on the feed dog in front of the needle drop point in the fabric feed direction, and switching between a first state in which the sewing machine is stopped and a second state in which the sewing machine is driven. The drive circuit C13゜Dl, D, 2 enables the holding of the side edge along the cloth feeding direction on the opposite side of the sewing part from the scheduled sewing edge of the cloth, and the A conveyance means 1 which is spaced apart from the preparation position and the working position ahead of the sewing part in the cloth feeding direction to the other side with respect to the cloth feeding line passing through the sewing part and is movable on a line along the cloth feeding direction.
2, actuating means 11 connected to move the conveying means from the ready position to the working position at a speed equal to the fabric feed speed of the sewing machine, V5, and the drive circuit always in the first state to generate the detection signal. A fabric control device for a sewing machine, comprising an associated control circuit for putting one drive circuit into a second state and activating the actuating means after the needle drop is made at the leading edge of the fabric.