JPH07303778A - Sending device for cloth to be worked of sewing machine - Google Patents

Abstract

PURPOSE:To perform sewing smoothly by improving the horizontal turning ability of cloth to be worked when it is sewn. CONSTITUTION:The sending quantity of a lower sending gear 16 is set differently from that of an upper sending gear 19 by employing such constitution that the cloth sending plane of the upper sending gear 19 and that of a presser foot 21 are located in parallel with a sending direction and also, proximately in right and left directions, and they are abutted with the lower sending gear 16 via the cloth 2, 3 to be sewn at a position in the neighborhood of the left side of a needle dropping position. In this way, the horizontal turning ability of the cloth to be sewn when it is sewn can be improved and the sewing can be performed smoothly.

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、ミシンの加工布送り装
置に関し、特に、下送り歯と上送り歯と押え足とによる
布送りを介して曲率が大きい（曲率半径が小さい）部分
を縫製する際における加工布の水平回動性を高めたもの
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work cloth feed device for a sewing machine, and in particular, a portion having a large curvature (a small radius of curvature) is sewn through cloth feed by a lower feed dog, an upper feed dog and a presser foot. The present invention relates to a work cloth having an improved horizontal rotation property.

【０００２】[0002]

【従来の技術】従来、下布を送る下送り歯を含む下布送
り機構と、上布を送る上送り歯を含む上送り機構とを備
えたミシンの場合、針落ち位置の左側付近では、押え足
は加工布を隔てて針板上に押圧され、上送り歯は加工布
を隔てて下送り歯に押圧されるように構成してある。2. Description of the Related Art Conventionally, in the case of a sewing machine provided with a lower cloth feed mechanism including a lower feed tooth for feeding a lower cloth and an upper feed mechanism including an upper feed tooth for feeding an upper cloth, near the left side of the needle drop position, The presser foot is pressed against the needle plate across the work cloth, and the upper feed dog is pressed against the lower feed dog across the work cloth.

【０００３】[0003]

【発明が解決しようとする課題】加工布の布端を一定の
縫い代で縫製する際、加工布の布端の曲率が小さい部分
では、比較的円滑に布位置を制御できる。しかし、加工
布の布端部が、加工布が送られている時は上送り歯で下
送り歯に押圧保持され、加工布が送られない時は押え足
で針板上に押圧保持されるため、加工布の布端の曲率が
大きくなると、加工布の布端形状通りに布位置を制御す
ることが難しくなり、縫い代精度が低下し、縫製品質が
低下するという問題がある。また、縫い速度も遅くしな
いと制御できないため、生産性も低下するという問題が
ある。本発明の目的は、加工布の布端を縫製する際の水
平回動性を高め得るようなミシンの加工布送り装置を提
供することである。When the fabric edge of the work cloth is sewn with a constant seam allowance, the cloth position can be controlled relatively smoothly in the portion of the work cloth having a small curvature. However, the end of the work cloth is pressed and held by the upper feed tooth and the lower feed tooth when the work cloth is being fed, and is pressed and held by the presser foot on the needle plate when the work cloth is not fed. Therefore, when the curvature of the cloth end of the work cloth is large, it is difficult to control the cloth position according to the shape of the work cloth end, and the seam allowance accuracy is deteriorated and the quality of the sewn product is deteriorated. Further, there is a problem that productivity cannot be reduced because the sewing speed cannot be controlled unless it is slowed down. An object of the present invention is to provide a work cloth feed device for a sewing machine, which can enhance horizontal pivotability when sewing the cloth end of the work cloth.

【０００４】[0004]

【課題を解決するための手段】請求項１のミシンの加工
布送り装置は、針板の上面に下方から臨む下送り歯を有
し且つ送り量を調整可能な下送り手段と、針板の上方か
ら加工布を隔てて下送り歯に当接する上送り歯を有し且
つ下送り手段とは独立に送り量を調整可能な上送り手段
と、加工布を押える押え足を有する押え手段とを備えた
ミシンの加工布送り装置において、前記上送り歯の布送
り面と、押え手段の押え足の布送り面とは、送り方向に
平行で且つ左右に近接して位置し、針落ち位置の左側付
近の位置において、加工布を隔てて下送り歯に当接する
ように構成されたものである。According to a first aspect of the present invention, there is provided a work cloth feeding device for a sewing machine, which has a lower feed dog facing the upper surface of the needle plate from the lower side and has a lower feed means capable of adjusting the feed amount. An upper feed means having an upper feed tooth which is in contact with a lower feed tooth and which separates the work cloth from above, and whose feed amount can be adjusted independently of the lower feed means; and a holding means having a holding foot for holding the work cloth. In the machine feed device for a sewing machine provided, the cloth feed surface of the upper feed dog and the cloth feed surface of the presser foot of the pressing means are positioned parallel to the feed direction and close to the left and right, and In the vicinity of the left side, the work cloth is arranged to be in contact with the lower feed dog.

【０００５】請求項２のミシンの加工布送り装置は、針
板の上面に下方から臨む下送り歯を有し且つ送り量を調
整可能な下送り手段と、針板の上方から加工布を隔てて
下送り歯に当接する上送り歯を有し且つ下送り手段とは
独立に送り量を調整可能な上送り手段と、加工布を押え
る押え足を有する押え手段とを備えたミシンの加工布送
り装置において、前記上送り歯の布送り面は、針落ち位
置の左側付近の位置において、前記下送り歯の略左半部
に加工布を隔てて当接するように構成され、前記押え手
段の押え足の布送り面は、前記上送り歯の右側位置にお
いて、前記下送り歯の略右半部に加工布を隔てて当接す
るように構成されたものである。According to a second aspect of the present invention, there is provided a work cloth feeding device for a sewing machine, which has a lower feed tooth on the upper surface of the needle plate and which can be adjusted in feed amount, and a lower feed means which separates the work cloth from above the needle plate. Sewing machine work cloth including upper feed means having an upper feed tooth that comes into contact with the lower feed tooth and capable of adjusting the feed amount independently of the lower feed means, and a presser means having a presser foot for pressing the work cloth. In the feed device, the cloth feed surface of the upper feed dog is configured to abut on a substantially left half of the lower feed tooth with a work cloth at a position near the left side of the needle drop position, and the work feed surface of the presser means. The cloth feed surface of the presser foot is configured to abut on the right half portion of the upper feed tooth with the work cloth at a substantially right half of the lower feed tooth.

【０００６】[0006]

【作用】請求項１のミシンの加工布送り装置において
は、下送り歯を有し且つ送り量を調整可能な下送り手段
と、上送り歯を有し且つ下送り手段とは独立に送り量を
調整可能な上送り手段と、押え足を有する押え手段とを
備えたミシンの加工布送り装置において、上送り歯の布
送り面と、押え手段の押え足の布送り面とは、送り方向
に平行で且つ左右に近接して位置し、針落ち位置の左側
付近の位置において、加工布を隔てて下送り歯に当接す
るように構成されたので、針落ち位置の左側付近の位置
において、加工布（上布と下布）は、下送り歯と押え足
との協働により、下送り歯の送り量だけ布送りされ、ま
た、その左側近傍位置において、加工布の上布は、上送
り歯の送り量だけ布送りされる。In the work cloth feeding apparatus of the sewing machine according to the present invention, the lower feed means having the lower feed tooth and having the adjustable feed amount, and the upper feed tooth having the lower feed tooth and the feed amount independent of the lower feed means. In a work cloth feed device for a sewing machine including an adjustable upper feed means and a presser foot having a presser foot, the cloth feed surface of the upper feed tooth and the cloth feed surface of the presser foot of the presser means are It is located parallel to and close to the left and right, and at the position near the left side of the needle drop position, it is configured to contact the lower feed dog with the work cloth in between, so at the position near the left side of the needle drop position, The work cloth (upper cloth and lower cloth) is fed by the amount of feed of the lower feed dog by the cooperation of the lower feed dog and the presser foot. The cloth is fed by the feed amount of the feed dog.

【０００７】従って、上送り歯の送り量が、下送り歯の
送り量よりも小さい場合には、加工布は、布送り時に平
面視にて反時計回り方向へ回動しやすくなり、また、上
送り歯の送り量が、下送り歯の送り量よりも大きい場合
には、加工布は、布送り時に平面視にて時計回り方向へ
回動しやすくなる。これにより、加工布を湾曲状に縫製
する際における加工布の水平回動性を高めて、滑らかな
縫製を可能にし、縫製品質を高めることができる。尚、
別途布端制御装置を設ける場合には、前記のように加工
布の水平回動性を高めることにより、曲率が大きい部分
を縫製する際における布端制御の精度を高めて、縫製品
質を高めることができる。Therefore, when the feed amount of the upper feed dog is smaller than the feed amount of the lower feed tooth, the work cloth is likely to rotate counterclockwise in plan view during feed of the cloth. When the feed amount of the upper feed dog is larger than the feed amount of the lower feed tooth, the work cloth is likely to rotate in the clockwise direction in a plan view during feed of the cloth. As a result, when the work cloth is sewn in a curved shape, the horizontal rotatability of the work cloth can be increased, smooth sewing can be performed, and the quality of the sewn product can be improved. still,
When a separate cloth edge control device is provided, the horizontal rotatability of the work cloth is increased as described above to improve the accuracy of the cloth edge control when sewing a portion having a large curvature and to improve the quality of the sewn product. You can

【０００８】請求項２のミシンの加工布送り装置におい
ては、下送り歯を有し且つ送り量を調整可能な下送り手
段と、上送り歯を有し且つ下送り手段とは独立に送り量
を調整可能な上送り手段と、押え足を有する押え手段と
を備えたミシンの加工布送り装置において、上送り歯の
布送り面は、針落ち位置の左側付近の位置において、前
記下送り歯の略左半部に加工布を隔てて当接するように
構成され、押え手段の押え足の布送り面は、前記上送り
歯の右側位置において、下送り歯の略右半部に加工布を
隔てて当接するように構成されたので、基本的に請求項
１と同様の作用が得られる。According to another aspect of the present invention, there is provided a work cloth feed device for a sewing machine, which has a lower feed tooth and an adjustable feed amount, and a lower feed means which has an upper feed tooth and is independently fed from the lower feed means. In a work cloth feed device for a sewing machine provided with an upper feed means capable of adjusting and a presser foot having a presser foot, the cloth feed surface of the upper feed dog has a lower feed dog at a position near the left side of the needle drop position. Of the presser foot of the presser foot at the right side position of the upper feed dog and the work cloth on the right half part of the lower feed dog. Since they are configured so as to be in contact with each other at a distance, the same operation as in claim 1 is basically obtained.

【０００９】[0009]

【実施例】以下、本発明の実施例について図面に基いて
説明する。本実施例は、加工布横送り装置を備えた工業
用縫製装置Ｍに、本発明を適用した場合のものである。
図１に示すように、この工業用縫製装置Ｍは、工業用本
縫いミシンと同様の本縫いミシン１０と、そのベッド部
１１の上面に配設された上布横送り装置３０と、ベッド
部１１の下側に配設された下布横送り装置７０と、加工
布案内ユニット９０と、上布布端検出装置１３０及び下
布布端検出装置１４０と、操作パネル１４及び制御ユニ
ット１６０等で構成されている（図７参照）。尚、以下
の説明において、縫製装置Ｍに向かって手前側を前方と
し、左右方向を左右方向として説明する。尚、上布横送
り装置３０と、下布横送り装置７０と、上布布端検出装
置１３０及び下布布端検出装置１４０は、上下の布の布
端を検出し制御するものであるが、詳細な説明は省略す
る。また、加工布案内ユニット９０は、図１３、図１４
に示すような布製シューズ１の踵部３ａを縫製する際
に、下布３を針板２７の上方へ向けて湾曲状に案内する
ものであるが、詳細な説明は省略する。Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is a case where the present invention is applied to an industrial sewing machine M provided with a work cloth lateral feed device.
As shown in FIG. 1, this industrial sewing machine M includes a lock stitch sewing machine 10 similar to an industrial lock stitch sewing machine, an upper cloth lateral feed device 30 disposed on the upper surface of a bed portion 11, and a bed portion. 11 includes a lower cloth lateral feed device 70, a work cloth guide unit 90, an upper cloth cloth edge detection device 130 and a lower cloth cloth edge detection device 140, an operation panel 14 and a control unit 160. It is configured (see FIG. 7). In the following description, the front side of the sewing machine M will be referred to as the front and the left-right direction will be referred to as the left-right direction. The upper cloth lateral feeding device 30, the lower cloth lateral feeding device 70, the upper cloth end detecting device 130, and the lower cloth end detecting device 140 detect and control the upper and lower cloth ends. , Detailed description is omitted. Further, the work cloth guide unit 90 is shown in FIGS.
When sewing the heel portion 3a of the cloth shoe 1 as shown in (3), the lower cloth 3 is guided in a curved shape toward the upper side of the needle plate 27, but detailed description thereof will be omitted.

【００１０】最初に、前記本縫いミシン１０について説
明すると、この本縫いミシン１０は、図１〜図５に示す
ように作業用テーブル１５に装着されたベッド部１１
と、そのベッド部１１の右端部から立設された脚柱部１
２と、その脚柱部１２の上端からベッド部１１に対向す
るように左方へ延びるアーム部１３とから構成されてい
る。ベッド部１１内には、下送り歯１６を上下動させる
下送り歯上下動機構（図示略）及び下送り歯１６を前後
動させる下送り歯前後動機構（図示略）と、糸捕捉器２
５と、下軸２４などが設けられている。First, the lockstitch sewing machine 10 will be described. The lockstitch sewing machine 10 has a bed portion 11 mounted on a work table 15 as shown in FIGS.
And the pedestal portion 1 erected from the right end of the bed portion 11
2 and an arm portion 13 extending leftward from the upper end of the pedestal portion 12 so as to face the bed portion 11. In the bed portion 11, a lower feed dog vertical movement mechanism (not shown) for vertically moving the lower feed tooth 16 and a lower feed tooth forward / backward movement mechanism (not shown) for moving the lower feed tooth 16 back and forth, and the yarn catcher 2
5, a lower shaft 24 and the like are provided.

【００１１】前記アーム部１３には、縫針１７を下端に
装着可能な針棒１８を上下動させる針棒駆動機構と、針
棒１８の上下動に調時して天秤（図示略）を上下動させ
る天秤駆動機構（図示略）と、垂直釜からなる糸捕捉器
２５を駆動する釜駆動機構と、上布２を布送り方向へ送
る上送り歯１９を上下動させる上送り歯上下動機構（図
示略）及び前後動させる上送り歯前後動機構（図示略）
などが設けられている。前記針棒１８の後側において、
アーム部１３の頭部１３ａには、押え棒２２が上下動可
能に支持されており、その押え棒２２の下端には押え足
２１が取付けられている。前記押え棒２２と、上送り歯
１９とは、押え足駆動用ソレノイドに連結されており、
これら押え棒２２と上送り歯１９とは、押え足駆動用ソ
レノイドにより上昇した退避位置と、下降した作用位置
に位置切換えされる。In the arm portion 13, a needle bar drive mechanism for vertically moving a needle bar 18 to which a sewing needle 17 can be attached at the lower end, and a balance (not shown) is vertically moved in synchronization with the vertical movement of the needle bar 18. A balance driving mechanism (not shown) for driving, a shuttle driving mechanism for driving the thread catcher 25 composed of a vertical shuttle, and an upper feed dog up-and-down moving mechanism for vertically moving the upper feed dog 19 for feeding the upper cloth 2 in the cloth feed direction ( (Not shown) and an upper feed dog back-and-forth moving mechanism (not shown) for moving back and forth
Etc. are provided. On the rear side of the needle bar 18,
A presser bar 22 is supported on the head 13a of the arm 13 so as to be vertically movable, and a presser foot 21 is attached to the lower end of the presser bar 22. The presser bar 22 and the upper feed dog 19 are connected to a presser foot driving solenoid,
The position of the presser bar 22 and the upper feed dog 19 is switched between the retracted position raised by the presser foot driving solenoid and the lowered working position.

【００１２】前記下送り歯１６の下送り歯上下動機構
と、上送り歯１９の上送り歯上下動機構と、針棒駆動機
構と、天秤駆動機構と、釜駆動機構とはミシンモータ２
３で駆動される。下送り歯１６は、リニアソレノイドの
駆動量で変更される送り制御器の傾きに応じた送り量で
下送り歯前後動機構を介して前後駆動される。また、上
送り歯１９は、上送り歯用パルスモータの回転量で変更
される送り制御器の傾きに応じた送り量で上送り歯前後
動機構を介して前後駆動される。前記作業用テーブル１
５の直ぐ下側にはミシンモータ２３が配設され、作業用
テーブル１５の下面側に取付けられている。この本縫い
ミシン１０のアーム部１３の頂部には操作パネル１４が
取付けられ、この操作パネル１４には、縫製作業に必要
な複数の操作スイッチが設けられている。The lower feed dog vertical movement mechanism of the lower feed tooth 16, the upper feed tooth vertical movement mechanism of the upper feed tooth 19, the needle bar drive mechanism, the balance drive mechanism, and the shuttle drive mechanism are the sewing machine motor 2
Driven by 3. The lower feed dog 16 is driven back and forth through the lower feed dog forward / backward moving mechanism at a feed amount according to the inclination of the feed controller that is changed by the drive amount of the linear solenoid. Further, the upper feed dog 19 is driven back and forth through the upper feed dog forward / backward moving mechanism by a feed amount according to the inclination of the feed controller which is changed by the rotation amount of the upper feed dog pulse motor. The working table 1
A sewing machine motor 23 is arranged immediately below 5 and is attached to the lower surface side of the work table 15. An operation panel 14 is attached to the top of the arm portion 13 of the lockstitch sewing machine 10, and the operation panel 14 is provided with a plurality of operation switches necessary for sewing work.

【００１３】図３〜図５に示すように、下送り歯１６の
布送り面は、少しだけ広幅に形成され、下送り歯１６
は、その布送り面が針板２７の開口部から僅かに突出可
能に配設され、針板２７と押え足２１には針穴２８が形
成されている。上送り歯１９の布送り面と、押え足２１
の布送り面とは、送り方向に平行で且つ左右に近接して
位置し、上送り歯１９の布送り面の大部分と押え足２１
の布送り面の左端部とが、針落ち位置（つまり、針穴２
８）の左側付近の位置において縫製前後の下布３と上布
２を隔てて下送り歯１６の布送り面に当接するように構
成してある。つまり、上送り歯１９の布送り面は、下送
り歯１６の布送り面の左半部に当接し、また、押え足２
１の布送り面は、下送り歯１６の布送り面の右半部に当
接するようになっている。As shown in FIGS. 3 to 5, the cloth feed surface of the lower feed dog 16 is formed to have a slightly wider width.
The cloth feed surface is arranged so that it can slightly project from the opening of the needle plate 27, and the needle plate 27 and the presser foot 21 are formed with needle holes 28. Cloth feed surface of upper feed dog 19 and presser foot 21
Of the upper feed dog 19 and the presser foot 21.
The left end of the cloth feed surface of the
In a position near the left side of 8), the lower cloth 3 and the upper cloth 2 before and after sewing are separated from each other so as to contact the cloth feed surface of the lower feed dog 16. That is, the cloth feed surface of the upper feed dog 19 contacts the left half of the cloth feed surface of the lower feed dog 16, and the presser foot 2
The cloth feed surface of No. 1 contacts the right half of the cloth feed surface of the lower feed dog 16.

【００１４】ここで、前記下送り歯１６と上送り歯１９
と押え足２１による布送り作用について、図６を参照し
て説明する。基本的に、下送り歯１６と押え足２１間に
挟持される下布３と上布２の部分は、下送り歯１６の下
送り量Ｆｗと略等しい実送り量Ｆwa（Ｆwa＝ｂ＝ｄ）だ
け布送りされるが、押え足２１と上布２との間に発生す
るスリップ量ｓだけ送り量が下送り量Ｆｗよりも小さく
なる。下送り歯１６と上送り歯１９とに挟持される上布
２と下布３の部分は、下送り歯１６の下送り量Ｆｗと、
上送り歯１９の上送り量Ｆｕ（尚、図示の例では、Ｆｕ
＜Ｆｗ）とで決まる送り量ａ，ｃだけ布送りされる。
尚、送り量ａは、上布２の厚さ中段部における送り量、
送り量ｃは、下布３の厚さ中段部における送り量であ
る。Here, the lower feed dog 16 and the upper feed dog 19 are provided.
The cloth feeding operation by the presser foot 21 will be described with reference to FIG. Basically, the portion of the lower cloth 3 and the upper cloth 2 sandwiched between the lower feed dog 16 and the presser foot 21 is an actual feed amount Fwa (Fwa = b = d) which is substantially equal to the lower feed amount Fw of the lower feed tooth 16. ), But the feed amount becomes smaller than the lower feed amount Fw by the slip amount s generated between the presser foot 21 and the upper cloth 2. The portion of the upper cloth 2 and the lower cloth 3 that is sandwiched between the lower feed dog 16 and the upper feed dog 19 is the lower feed amount Fw of the lower feed dog 16,
The upper feed amount Fu of the upper feed dog 19 (in the illustrated example, Fu
The cloth is fed by the feed amounts a and c determined by <Fw).
The feed amount a is the feed amount in the middle step of the thickness of the upper cloth 2,
The feed amount c is the feed amount in the middle portion of the thickness of the lower cloth 3.

【００１５】上布２のうち、押え足２１で押えられる針
落ち位置近傍部は、送り量ｂだけ布送りされ、その針落
ち位置近傍部の左側近傍部（上送り歯１９で押えられる
部分）は、送り量ａ（ａ＜ｂ）だけ布送りされるため、
上布２は、ベッド１１と針板２７の上面において、送り
量ａ，ｂ等の諸寸法に応じて決まる角度だけ、点Ｐｕを
中心として平面視反時計回り方向に水平回動することに
なる。布送りの間縫針１７は落ちないため、縫目ピッチ
は、送り量ｂよりも少し大きくなる。Of the upper cloth 2, the portion near the needle drop position which is pressed down by the presser foot 21 is fed by the feed amount b, and the portion near the left side of the portion near the needle drop position (the portion pressed by the upper feed dog 19). Is fed by the feed amount a (a <b),
The upper cloth 2 horizontally rotates on the upper surfaces of the bed 11 and the needle plate 27 in the counterclockwise direction in plan view about the point Pu by an angle determined according to various dimensions such as the feed amounts a and b. . Since the sewing needle 17 does not fall during the cloth feeding, the stitch pitch is slightly larger than the feed amount b.

【００１６】下布３のうち、押え足２１で押えられる針
落ち位置近傍部は、送り量ｄだけ布送りされ、その針落
ち位置近傍部の左側近傍部（上送り歯１９で押えられる
部分）は、送り量ｃ（ｃ＜ｄ）だけ布送りされるため、
下布３は、ベッド１１と針板２７の上面において、送り
量ｃ，ｄ等の諸寸法に応じて決まる角度だけ、点Ｐｗを
中心として平面視反時計回り方向に水平回動することに
なる。布送りの間縫針１７は落ちないため、縫目ピッチ
は、送り量ｄよりも少し大きくなる。Of the lower cloth 3, the portion near the needle drop position where it is pressed by the presser foot 21 is fed by the feed amount d, and the portion near the left side of the portion near the needle drop position (the portion pressed by the upper feed dog 19). Is fed by the feed amount c (c <d),
The lower cloth 3 horizontally rotates on the upper surfaces of the bed 11 and the needle plate 27 in the counterclockwise direction in plan view about the point Pw by an angle determined according to various dimensions such as the feed amounts c and d. . Since the sewing needle 17 does not fall during the cloth feed, the stitch pitch is slightly larger than the feed amount d.

【００１７】このように、押え足２１の布送り面の左端
部を、下布３と上布２とを挟んで下送り歯１６に押圧
し、下送り量Ｆｗと上送り量Ｆｕとの差を介して、上布
２と下布３とを平面視反時計回り方向に水平回動させる
回動モーメントを作用させることができる。その結果、
布製シューズ１の爪先側部分を縫製する場合のように、
アウトカーブ状の下布３と上布２とを縫製する際や、曲
率の大きな踵部分を縫製する際に、滑らかに縫製するこ
とが可能となる。In this way, the left end of the cloth feed surface of the presser foot 21 is pressed against the lower feed dog 16 with the lower cloth 3 and the upper cloth 2 interposed therebetween, and the difference between the lower feed amount Fw and the upper feed amount Fu is detected. A rotation moment for horizontally rotating the upper cloth 2 and the lower cloth 3 in the counterclockwise direction in plan view can be applied via the. as a result,
Like when sewing the toe side of the cloth shoe 1,
It is possible to sew smoothly when sewing the out-curve lower cloth 3 and the upper cloth 2 or when sewing the heel portion having a large curvature.

【００１８】再び、構成について説明すると、図３、図
４に示すように、針穴２８の右側位置において、針板２
７上には、下布３と上布２の右側の布端に当接して布端
位置を規制する規制輪８が、その軸心を鉛直に向けて配
設され、この規制輪８は鉛直のボルト９で針板２７に回
転自在に支持されている。The structure will be described again. As shown in FIGS. 3 and 4, the needle plate 2 is located at the right side of the needle hole 28.
A regulating wheel 8 that abuts the right cloth ends of the lower cloth 3 and the upper cloth 2 and restricts the cloth end position is arranged on the upper surface of the upper cloth 7 with its axis centered vertically. It is rotatably supported on the throat plate 27 by the bolt 9 of.

【００１９】次に、以上説明した工業用縫製装置Ｍの制
御系について説明する。図７に示すように、制御ユニッ
ト１６０は、ＣＰＵ１６１とＲＯＭ１６２とＲＡＭ１６
３を含むマイクロコンピュータと、入力インターフェイ
ス１６４と、出力インターフェイス１６５とからなり、
前記ＲＯＭ１６２には、後述の縫製制御の制御プログラ
ムが予め格納され、また、ＲＡＭ１６３には、縫製制御
の為の種々のメモリやバッファ類が設けられ、入力イン
ターフェイス１６４には、布製シューズ１を縫製する為
の縫製データを作成するデータ作成装置１５０と、上布
布端検出装置１３０と、下布布端検出装置１４０と、操
作パネル１４と、ミシン上軸の回転位相を検出するタイ
ミングセンサ１５４とが接続されている。尚、上布布端
検出装置１３０と下布布端検出装置１４０は、夫々、１
０本の光ファイバーで導光してプリズムで鉛直方向に方
向変換した１０本の左右方向に並ぶ細径光線を布端部分
に投射し、その反射光の強弱から各布端を検出するよう
になっている。Next, the control system of the industrial sewing machine M described above will be described. As shown in FIG. 7, the control unit 160 includes a CPU 161, a ROM 162, and a RAM 16
3 including a microcomputer, an input interface 164, and an output interface 165,
A control program for sewing control, which will be described later, is stored in advance in the ROM 162, various memories and buffers for sewing control are provided in the RAM 163, and the cloth shoe 1 is sewn in the input interface 164. The data creating device 150 for creating sewing data for sewing, the upper cloth end detecting device 130, the lower cloth end detecting device 140, the operation panel 14, and the timing sensor 154 detecting the rotational phase of the upper shaft of the sewing machine are provided. It is connected. The upper cloth cloth edge detecting device 130 and the lower cloth cloth edge detecting device 140 are respectively
Ten small-diameter light rays, which are guided by 0 optical fibers and converted in the vertical direction by a prism, are arranged in the left-right direction and projected onto the cloth edge portion, and each cloth edge is detected from the intensity of the reflected light. ing.

【００２０】前記制御ユニット１６０の出力インターフ
ェイス１６５には、押え棒上下用ソレノイド１５１、上
送り調節用ステッピングモータ１５２、下送り調節用リ
ニアソレノイド１５３、上布横送り装置３０の揺動アー
ム４６を回動させる揺動アーム回動用シリンダ５６、布
受け板３６を回動させる布受け板回動用シリンダ６２、
上布横送り用ステッピングモータ４３、下布横送り装置
７０の傾斜アーム７６を昇降させる傾斜アーム昇降用シ
リンダ７４、下布横送り用ステッピングモータ７７、加
工布案内ユニット９０を前後動させる加工布案内ユニッ
ト前後動シリンダ１０１、加工布案内ユニット９０を昇
降させる加工布案内ユニット昇降シリンダ９７、加工布
案内ユニット９０の移動案内板１１２を案内移動させる
案内板駆動用ステッピングモータ１１４、ミシンモータ
２３等が接続され、これらは制御ユニット１６０により
制御され、また、操作パネル１４からの指令により制御
される。尚、シリンダ類は、実際には方向切換え弁を介
して制御される。The output interface 165 of the control unit 160 rotates the presser bar up / down solenoid 151, the upper feed adjusting stepping motor 152, the lower feed adjusting linear solenoid 153, and the swing arm 46 of the upper cloth lateral feeding device 30. A swing arm rotating cylinder 56 for moving, a cloth receiving plate rotating cylinder 62 for rotating the cloth receiving plate 36,
Upper cloth lateral feed stepping motor 43, tilting arm elevating cylinder 74 for raising and lowering tilting arm 76 of lower cloth lateral feed device 70, lower cloth lateral feed stepping motor 77, and working cloth guide for moving working cloth guiding unit 90 back and forth. A unit front-rear movement cylinder 101, a work cloth guide unit elevating cylinder 97 for raising and lowering the work cloth guide unit 90, a guide plate driving stepping motor 114 for guiding and moving a movement guide plate 112 of the work cloth guide unit 90, a sewing machine motor 23, etc. are connected. These are controlled by the control unit 160, and also controlled by a command from the operation panel 14. The cylinders are actually controlled via the direction switching valve.

【００２１】次に、縫製データ及び縫製順序等について
説明する。図８は、左足用の布製シューズ１の上布２上
面（布製シューズ１に形成後には裏面）を示し、図９
は、下布３の上面（布製シューズ１に形成後には内面）
を示すものであり、上布２と下布３の外周縁には、例え
ば１２個のノッチ（ノッチ番号Ｎ＝０〜１１）が形成さ
れ、ノッチとノッチとの間は、１乃至複数の縫製区間
（縫製区間番号Ｋ＝０，１，２）に区切られ、各縫製区
間は曲率一定の円弧形状を成している。布製シューズ１
を縫製する際に、最初にノッチ番号Ｎ＝０の箇所から矢
印の方向へ、つまりノッチ番号Ｎの順に縫製が実行され
る。Next, the sewing data and the sewing order will be described. 8 shows the upper surface 2 of the upper cloth 2 of the cloth shoe 1 for the left foot (the back surface after being formed on the cloth shoe 1), and FIG.
Is the upper surface of the lower cloth 3 (the inner surface after being formed into the cloth shoe 1)
12 notches (notch number N = 0 to 11) are formed on the outer peripheral edges of the upper cloth 2 and the lower cloth 3, and 1 to a plurality of stitches are formed between the notches. The sewing section is divided into sections (sewing section number K = 0, 1, 2), and each sewing section has an arc shape with a constant curvature. Cloth shoes 1
At the time of sewing, the sewing is first performed from the position of the notch number N = 0 in the direction of the arrow, that is, in the order of the notch number N.

【００２２】前記データ作成装置１５０は、上布２（中
底布）と下布３（甲被布）に関する縫製データを、画像
読み取り等を介して入力作成する為の装置であり、この
データ作成装置１５０により作成される縫製データは、
図１０に示す通りである。尚、縫製データ中、長さの単
位はｍｍであり、針数は各縫製区間を縫製する針数を示
し、上送り量は上送り歯の送り量を示し、下送り量は下
送り歯の送り量を示す。布端センサ「上」のデータ
「２」は、上布２の上側に来る光線の数が２本であるこ
とを示し、布端センサ「下」のデータ「３」は、下布３
の下側に来る光線の数が３本であることを示す。速度レ
ベルは、ミシンモータ２３の回転速度（200 〜2000ｒｐ
ｍ）を１０段階に区分した速度レベルを示す。The data creation device 150 is a device for inputting and creating sewing data concerning the upper cloth 2 (middle bottom cloth) and the lower cloth 3 (instep cloth) through image reading or the like. The sewing data created by 150 is
This is as shown in FIG. In the sewing data, the unit of length is mm, the number of stitches indicates the number of stitches for sewing in each sewing section, the upper feed amount indicates the feed amount of the upper feed dog, and the lower feed amount indicates the lower feed dog. Indicates the feed amount. The data “2” of the cloth edge sensor “upper” indicates that the number of light rays coming to the upper side of the upper cloth 2 is two, and the data “3” of the cloth edge sensor “lower” is the lower cloth 3
It indicates that the number of light rays coming to the lower side is three. The speed level is the rotation speed of the sewing machine motor 23 (200 to 2000 rp).
The speed levels obtained by dividing m) into 10 stages are shown.

【００２３】ここで、上送り量及び下送り量は、中底布
弧長、甲被弧長、中底布半径及び甲被半径を基に、上布
２と下布３の布端部の湾曲曲率が大きい（曲率半径が小
さい）場合程、上布２と下布３との布端制御の精度が低
下することに鑑み、前記布端部の曲率の増大に応じて、
上布２と下布３の水平回動性を高める為に、下送り量と
上送り量の差を大きく設定するように構成されている。Here, the upper feed amount and the lower feed amount are based on the midsole cloth arc length, the instep arc cover length, the midsole cloth radius and the instep cover radius, and are determined by the cloth end portions of the upper cloth 2 and the lower cloth 3. Considering that the accuracy of the cloth edge control of the upper cloth 2 and the lower cloth 3 decreases as the curved curvature increases (the radius of curvature decreases), the curvature of the cloth edge increases as
In order to enhance the horizontal rotatability of the upper cloth 2 and the lower cloth 3, the difference between the lower feed amount and the upper feed amount is set to be large.

【００２４】次に、工業用縫製装置Ｍで布製シューズ１
を縫製する際の縫製制御について、図１１、図１２のフ
ローチャートに基いて説明する。尚、フローチャート中
の符号Ｓｉ（ｉ＝１，２，・・・）は、各ステップを示
す。また、この縫製に先行して、データ作成装置１５０
から予め縫製データがＲＡＭ１６３のメモリに転送さ
れ、その縫製データを用いて実行される。そして、下布
３と上布２とを所定の状態にセットした状態において制
御が開始されるものとする。Next, the cloth shoe 1 is manufactured by the industrial sewing machine M.
The sewing control when sewing is described with reference to the flowcharts of FIGS. 11 and 12. The reference numeral Si (i = 1, 2, ...) In the flowchart indicates each step. Further, prior to this sewing, the data creation device 150
Is transferred to the memory of the RAM 163 in advance, and the sewing data is used for execution. Then, the control is started in a state where the lower cloth 3 and the upper cloth 2 are set in a predetermined state.

【００２５】操作パネル１４の縫製スタートスイッチが
ＯＮされると（Ｓ１：Yes ）、ソレノイド１５１により
押え棒２２が下降され、エアシリンダ５６により揺動ア
ーム４６が下方揺動され、エアシリンダ７４により傾斜
アーム７６が上昇される（Ｓ２）。次に、ミシンモータ
２３が所定速度で駆動され（Ｓ３）、次に、ノッチ番号
カウンタＮ、区間番号カウンタＫ、針数カウンタＰが、
夫々０にセットされる（Ｓ４）。次に、ノッチ番号カウ
ンタＮと区間番号カウンタＫとで指示される縫製データ
が読み込まれる（Ｓ５）。次に、上送り量のデータに基
いて上送り調節用のステッピングモータ１５２が駆動さ
れ、下送り量のデータに基いて下送り調節用のリニアソ
レノイド１５３が駆動され、速度レベルのデータに基い
てミシンモータ２３の回転速度が制御される（Ｓ６）。When the sewing start switch of the operation panel 14 is turned on (S1: Yes), the presser bar 22 is lowered by the solenoid 151, the swing arm 46 is swung downward by the air cylinder 56, and the air cylinder 74 is tilted. The arm 76 is raised (S2). Next, the sewing machine motor 23 is driven at a predetermined speed (S3), and then the notch number counter N, the section number counter K, and the stitch number counter P are
Each is set to 0 (S4). Next, the sewing data designated by the notch number counter N and the section number counter K is read (S5). Next, the stepping motor 152 for adjusting the upper feed is driven based on the data of the upper feed amount, the linear solenoid 153 for adjusting the lower feed is driven based on the data of the lower feed amount, and based on the data of the speed level. The rotation speed of the sewing machine motor 23 is controlled (S6).

【００２６】次に、上布２の布端検出信号及び下布３の
布端検出信号が読み込まれ（Ｓ７）、続いて上布布端検
出装置１３０及び下布布端検出装置１４０の布端検出信
号に基いて上布２と下布３の布端の各基準位置に対する
ズレ量が演算され（Ｓ８）、次に、それらの布端の各基
準位置に対するズレ量が解消するように、上布横送り用
ステッピングモータ４３と下布横送り用ステッピングモ
ータ７７が駆動される（Ｓ９）。次に、Ｓ１０におい
て、タイミングセンサ１５４からの検出信号に含まれる
針下信号が入力されたか否か判定し、その判定がYes の
ときには針数カウンタＰが１だけインクリメントされ
（Ｓ１１）、次に、針数カウンタＰのカウント値Ｐが縫
製データの針数Ｐst以下か否か判定し（Ｓ１２）、その
判定がYes のときにはＳ７へ移行し、Ｓ７以降が繰り返
し実行され、縫製データの針数Ｐstだけの縫製が完了し
てカウント値Ｐが（Ｐst＋１）になると、Ｓ１２からＳ
１３へ移行する。Next, the cloth edge detection signal of the upper cloth 2 and the cloth edge detection signal of the lower cloth 3 are read (S7), and subsequently, the cloth edges of the upper cloth edge detecting device 130 and the lower cloth edge detecting device 140 are read. Based on the detection signal, the deviation amounts of the cloth ends of the upper cloth 2 and the lower cloth 3 with respect to the respective reference positions are calculated (S8), and then the deviation amounts of the cloth ends with respect to the respective reference positions are eliminated. The lateral cloth feed stepping motor 43 and the lower cloth lateral feed stepping motor 77 are driven (S9). Next, in S10, it is determined whether or not the needle down signal included in the detection signal from the timing sensor 154 is input. When the determination is Yes, the stitch number counter P is incremented by 1 (S11), and then, It is determined whether or not the count value P of the stitch number counter P is less than or equal to the stitch number Pst of the sewing data (S12), and if the determination is Yes, the process proceeds to S7, S7 and subsequent steps are repeatedly executed, and only the stitch number Pst of the sewing data When sewing is completed and the count value P reaches (Pst + 1), S12 to S
Move to 13.

【００２７】そして、Ｓ１３において、区間番号カウン
タＫが１だけインクリメントされるとともに、針数カウ
ンタＰが０にリセットされる。次に、区間番号カウンタ
Ｋのカウント値Ｋが縫製データの最大区間数Ｋst以下か
否か判定し（Ｓ１４）、その判定がYes のときには、Ｓ
５へ移行し、Ｓ５以降が繰り返し実行される。そして、
区間番号カウンタＫのカウント値Ｋが（Ｋst＋１）にな
ると、Ｓ１４からＳ１５へ移行して、ノッチ番号カウン
タＮが１だけインクリメントされ、区間番号カウンタＫ
が０にリセットされ（Ｓ１５）、次にノッチ番号カウン
タＮのカウント値Ｎが、縫製データの最大ノッチ番号Ｎ
max 以下か否か判定し（Ｓ１６）、その判定がYes のと
きはＳ５へ戻りＳ５以降が繰り返し実行される。Then, in S13, the section number counter K is incremented by 1, and the stitch number counter P is reset to 0. Next, it is determined whether the count value K of the section number counter K is less than or equal to the maximum section number Kst of the sewing data (S14), and if the determination is Yes, S
Then, the process proceeds to S5, and S5 and subsequent steps are repeatedly executed. And
When the count value K of the section number counter K becomes (Kst + 1), the process proceeds from S14 to S15, the notch number counter N is incremented by 1, and the section number counter K
Is reset to 0 (S15), and the count value N of the notch number counter N is the maximum notch number N of the sewing data.
It is determined whether or not it is less than or equal to max (S16), and when the determination is Yes, the process returns to S5 and S5 and subsequent steps are repeatedly executed.

【００２８】以上のように縫製が実行されていって、ノ
ッチ番号Ｎの順に縫製が進行していき、全周に亙って縫
製が完了すると、ノッチ番号Ｎが（Ｎmax ＋１）になる
ので、Ｓ１６からＳ１７へ移行し、ミシンモータ２３が
停止され（Ｓ１７）、縫製終了処理が実行される（Ｓ１
８）。尚、この縫製終了処理は、傾斜アーム７６を下降
させ、揺動アーム４６を上方揺動させ、押え棒２２を上
昇させる等の処理のことである。尚、以上は、１つの布
製シューズ１を縫製する際の縫製制御について説明した
が、以下同様にして、次々と布製シューズ１の縫製が実
行される。When the sewing is carried out as described above, the sewing progresses in the order of the notch number N, and when the sewing is completed over the entire circumference, the notch number N becomes (Nmax + 1). The process proceeds from S16 to S17, the sewing machine motor 23 is stopped (S17), and the sewing end process is executed (S1).
8). The sewing end process is a process in which the tilt arm 76 is lowered, the swing arm 46 is swung upward, and the presser bar 22 is raised. Although the sewing control when sewing one cloth shoe 1 has been described above, the cloth shoes 1 are sewn one after another in the same manner.

【００２９】次に、以上説明した工業用縫製装置Ｍの作
用について説明する。縫製開始時には、上布横送り装置
３０を、不使用位置から縫製使用位置に移動させ、下布
横送り装置７０の傾斜アーム７６を下降位置に保持し、
布受け板３６を退避位置に切換えた状態で、下布３を針
板２７と布受け板３６間にセットしてから布受け板３６
を使用位置に切換え、揺動アーム４６を退避位置に切換
えた状態で、上布２を布受け板３６と揺動アーム４６間
にセットすると縫製準備が完了する。Next, the operation of the industrial sewing machine M described above will be described. At the start of sewing, the upper cloth traverse device 30 is moved from the non-use position to the sewing use position, and the tilt arm 76 of the lower cloth traverse device 70 is held at the lowered position.
With the cloth receiving plate 36 switched to the retracted position, set the lower cloth 3 between the needle plate 27 and the cloth receiving plate 36, and then
Is switched to the use position and the swing arm 46 is switched to the retracted position, the upper cloth 2 is set between the cloth receiving plate 36 and the swing arm 46, and the preparation for sewing is completed.

【００３０】次に、前述のように、押え棒２２を下降さ
せ、揺動アーム４６を下方揺動させ、傾斜アーム７６を
上昇させ、本縫いミシン１０を作動させて、下布３と上
布２との縫製を実行するが、その縫製時、上布２と下布
３の布端が、規制輪８に当接して位置規制され、上布布
端検出装置１３０によって検出した布端検出信号に基い
て、制御ユニット１６０により、上布横送り装置３０の
ステッピングモータ４３が制御されて上布２の布端が縫
製データで指示された位置となるように上布２の横送り
が実行され、また、下布布端検出装置１４０によって検
出した布端検出信号に基いて、制御ユニットにより、下
布横送り装置７０のステッピングモータ７７が制御され
て下布３の布端が縫製データで指示された位置となるよ
うに下布３の横送りが実行される。このように布端位置
を制御する布端制御を実行しながら、下布３と上布２と
の外周部を縫製して、布製シューズ１を縫製することが
できる。Next, as described above, the presser bar 22 is lowered, the swing arm 46 is swung downward, the tilt arm 76 is raised, and the lockstitch sewing machine 10 is operated to operate the lower cloth 3 and the upper cloth. 2 is performed, but at the time of sewing, the cloth ends of the upper cloth 2 and the lower cloth 3 come into contact with the restriction wheel 8 to be position-regulated, and the cloth-end detection signal detected by the upper cloth-end detecting device 130 is detected. Based on the above, the control unit 160 controls the stepping motor 43 of the upper cloth lateral feeding device 30 to laterally feed the upper cloth 2 so that the cloth end of the upper cloth 2 is at the position designated by the sewing data. The control unit controls the stepping motor 77 of the lower cloth lateral feed device 70 based on the cloth end detection signal detected by the lower cloth cloth end detecting device 140 to instruct the cloth end of the lower cloth 3 by the sewing data. The lower cloth 3 is laterally fed so that it is in the specified position. There is executed. Thus, the cloth shoes 1 can be sewn by sewing the outer peripheral portions of the lower cloth 3 and the upper cloth 2 while executing the cloth edge control for controlling the cloth edge position.

【００３１】ここで、図６を参照しながら説明したよう
に、上送り歯１９の布送り面と、押え足２１の布送り面
とは、送り方向に平行で且つ左右に近接して位置し、針
落ち位置の左側付近の位置において、下布３と上布２と
を隔てて下送り歯１６に当接するように構成したので、
上送り量Ｆｕが、下送り量Ｆｗよりも小さい場合に、下
布３と上布２は、布送り時に平面視にて反時計回り方向
へ回動しやすくなり、また、上送り量Ｆｕが、下送り量
Ｆｗよりも大きい場合には、下布３と上布２は、布送り
時に平面視にて時計回り方向へ回動しやすくなる。これ
により、下布３と上布２を縫製する際における下布３と
上布２の水平回動性を高めて、滑らかな縫製を可能と
し、縫製品質を高めることができる。しかも、前記のよ
うに加工布の水平回動性を高めることにより、布端制御
精度を高めて、縫製品質を高めることができる。Here, as described with reference to FIG. 6, the cloth feed surface of the upper feed dog 19 and the cloth feed surface of the presser foot 21 are located parallel to the feed direction and close to the left and right. Since the lower cloth 3 and the upper cloth 2 are arranged so as to contact the lower feed dog 16 at a position near the left side of the needle drop position,
When the upper feed amount Fu is smaller than the lower feed amount Fw, the lower cloth 3 and the upper cloth 2 are likely to rotate counterclockwise in plan view during cloth feeding, and the upper feed amount Fu is If the feed amount is lower than the lower feed amount Fw, the lower cloth 3 and the upper cloth 2 are likely to rotate clockwise in plan view during cloth feeding. As a result, when the lower cloth 3 and the upper cloth 2 are sewn, the horizontal rotatability of the lower cloth 3 and the upper cloth 2 is enhanced, smooth sewing is enabled, and the quality of the sewn product can be improved. Moreover, as described above, by enhancing the horizontal turning property of the work cloth, it is possible to enhance the cloth edge control accuracy and improve the quality of the sewn product.

【００３２】更に、下送り量と上送り量との差が、曲率
に応じて大きくなるように、下送り量と上送り量とを補
正するように構成したので、下布３と上布２との曲率形
状に応じた水平回動モーメントを、下布３と上布２に作
用させることができる。その結果、布端製シューズ１の
爪先側部分のようなアウトカーブ状部分を縫製する際に
おける下布３と上布２のの水平回動性（平面視にて反時
計回り方向への水平回動性）を高めて、滑らかな縫製を
可能にし、縫製品質を高めることができる。Further, since the lower feed amount and the upper feed amount are corrected so that the difference between the lower feed amount and the upper feed amount increases in accordance with the curvature, the lower cloth 3 and the upper cloth 2 A horizontal rotation moment corresponding to the curvature shapes of and can be applied to the lower cloth 3 and the upper cloth 2. As a result, the horizontal rotatability of the lower cloth 3 and the upper cloth 2 (horizontal rotation in the counterclockwise direction in plan view) when sewing an outcurved portion such as the toe side portion of the cloth edge shoe 1 is sewn. It is possible to improve the quality of the sewn product by increasing the kinematics), enabling smooth sewing.

【００３３】但し、このことは、布端製シューズ１の爪
先側部分のようなアウトカーブ状部分に限らず、下布３
がアウトカーブ状で上布２がインカーブ状の部分を縫製
する場合、また、下布３がインカーブ状で上布２がアウ
トカーブ状の部分を縫製する場合、また、下布３と上布
２とがインアウトカーブ状の部分を縫製する場合にも、
同様である。尚、前記実施例は、一例を示すものに過ぎ
ず、本発明の趣旨を逸脱しない範囲で前記実施例の装置
に種々の変更を付加した態様で実施することが可能であ
る。However, this is not limited to the out-curved portion such as the toe side portion of the cloth edge shoe 1, and the lower cloth 3
When the upper cloth 2 sewes an incurved portion and the lower cloth 3 sews an incurved portion and the upper cloth 2 sews an outcurved portion, the lower cloth 3 and the upper cloth 2 Also when sewing the in-out curved part,
It is the same. It should be noted that the above embodiment is merely an example, and various modifications can be made to the apparatus of the above embodiment without departing from the spirit of the present invention.

【００３４】[0034]

【発明の効果】本発明によれば、前記作用の欄で説明し
たように、次の効果が得られる。請求項１のミシンの加
工布送り装置によれば、上送り歯の布送り面と、押え手
段の押え足の布送り面とを、送り方向に平行で且つ左右
に近接して位置し、針落ち位置の左側付近の位置におい
て、加工布を隔てて下送り歯に当接するように構成する
という簡単な構成によって、下送り歯の送り量と上送り
歯の送り量とを異ならせることで、加工布を縫製する際
における加工布の水平回動性を高めて、滑らかな縫製を
可能にし、縫製品質を高めることができる。尚、別途布
端制御装置を設ける場合には、前記のように加工布の水
平回動性を高めることにより、布端制御の精度を高め
て、縫製品質を高めることができる。According to the present invention, the following effects can be obtained as described in the section of the above operation. According to the work cloth feed device for a sewing machine of claim 1, the cloth feed surface of the upper feed dog and the cloth feed surface of the presser foot of the pressing means are positioned parallel to the feed direction and close to the left and right, By changing the feed amount of the lower feed dog and the feed amount of the upper feed tooth by a simple configuration in which the work cloth is separated and brought into contact with the lower feed tooth at a position near the left side of the drop position, When the work cloth is sewn, the horizontal rotatability of the work cloth can be enhanced, smooth sewing can be performed, and the quality of the sewn product can be improved. When the cloth edge control device is separately provided, the accuracy of the cloth edge control can be increased and the quality of the sewn product can be improved by increasing the horizontal rotatability of the work cloth as described above.

【００３５】請求項２のミシンの加工布送り装置によれ
ば、上送り歯の布送り面を、針落ち位置の左側付近の位
置において、下送り歯の略左半部に加工布を隔てて当接
するように構成し、押え手段の押え足の布送り面を、上
送り歯の右側位置において、下送り歯の略右半部に加工
布を隔てて当接するように構成するという簡単な構成に
より、請求項１と同様に、加工布を縫製する際における
加工布の水平回動性を高めて、滑らかな縫製を可能に
し、縫製品質を高めることができる。尚、別途布端制御
装置を設ける場合には、前記のように加工布の水平回動
性を高めることにより、布端制御の精度を高めて、縫製
品質を高めることができる。According to the work cloth feed device for the sewing machine of the second aspect, the work cloth feed surface of the upper feed dog is separated from the work cloth at approximately the left half of the lower feed tooth at a position near the left side of the needle drop position. A simple structure in which the cloth feed surface of the presser foot of the pressing means is arranged so as to abut on the right half position of the upper feed tooth and substantially the right half portion of the lower feed tooth with the work cloth separated. Thus, similarly to the first aspect, when the work cloth is sewn, the horizontal rotatability of the work cloth is increased, smooth sewing is enabled, and the quality of the sewn product can be improved. When the cloth edge control device is separately provided, the accuracy of the cloth edge control can be increased and the quality of the sewn product can be improved by increasing the horizontal rotatability of the work cloth as described above.

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

【図１】本発明の実施例に係る工業用縫製装置の正面図
である。FIG. 1 is a front view of an industrial sewing device according to an embodiment of the present invention.

【図２】前記縫製装置の本縫いミシンのベッド部を臨む
平面図である。FIG. 2 is a plan view of a bed portion of a lockstitch sewing machine of the sewing device.

【図３】前記本縫いミシンの要部拡大正面図である。FIG. 3 is an enlarged front view of an essential part of the lockstitch sewing machine.

【図４】前記本縫いミシンの針板、押え足、上下の送り
歯等の平面図である。FIG. 4 is a plan view of the needle plate, presser foot, and upper and lower feed dogs of the lockstitch sewing machine.

【図５】前記本縫いミシンの要部拡大側面図である。FIG. 5 is an enlarged side view of an essential part of the lockstitch sewing machine.

【図６】前記本縫いミシンの布送りの作用を説明した説
明図である。FIG. 6 is an explanatory view explaining the cloth feeding operation of the lock stitch sewing machine.

【図７】前記工業用縫製装置の制御系のブロック図であ
る。FIG. 7 is a block diagram of a control system of the industrial sewing device.

【図８】上布の縫製区間等を説明した説明図である。FIG. 8 is an explanatory diagram illustrating a sewing section and the like of the upper cloth.

【図９】下布の縫製区間等を説明した説明図である。FIG. 9 is an explanatory diagram illustrating a sewing section of the lower cloth and the like.

【図１０】縫製データの内容を説明した説明図表であ
る。FIG. 10 is an explanatory chart explaining the contents of sewing data.

【図１１】縫製制御のルーチンのフローチャートの一部
である。FIG. 11 is a part of a flowchart of a sewing control routine.

【図１２】縫製制御のルーチンのフローチャートの残部
である。FIG. 12 is the rest of the flowchart of the sewing control routine.

【図１３】縫製後の布製シューズの斜視図である。FIG. 13 is a perspective view of the cloth shoe after sewing.

【図１４】縫製後の布製シューズの斜視図である。FIG. 14 is a perspective view of the cloth shoe after sewing.

【符号の説明】[Explanation of symbols]

Ｍ 工業用縫製装置 ２ 上布（加工布に相当する） ３ 下布（加工布に相当する） １０ 本縫いミシン １１ ベッド部 １６ 下送り歯 １９ 上送り歯 ２１ 押え足 ２２ 押え棒 ２７ 針板 １５１ 押え棒上下用ソレノイド １５２ 上送り調節用ステッピングモータ １５３ 下送り調節用リニアソレノイド １６０ 制御ユニット M Industrial sewing equipment 2 Upper cloth (corresponding to processed cloth) 3 Lower cloth (corresponding to processed cloth) 10 Lockstitch sewing machine 11 Bed section 16 Lower feed dog 19 Upper feed dog 21 Presser foot 22 Presser bar 27 Needle plate 151 Presser bar vertical solenoid 152 Upper feed adjustment stepping motor 153 Lower feed adjustment linear solenoid 160 Control unit

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 針板の上面に下方から臨む下送り歯を有
し且つ送り量を調整可能な下送り手段と、針板の上方か
ら加工布を隔てて下送り歯に当接する上送り歯を有し且
つ下送り手段とは独立に送り量を調整可能な上送り手段
と、加工布を押える押え足を有する押え手段とを備えた
ミシンの加工布送り装置において、 前記上送り歯の布送り面と、押え手段の押え足の布送り
面とは、送り方向に平行で且つ左右に近接して位置し、
針落ち位置の左側付近の位置において、加工布を隔てて
下送り歯に当接するように構成されたことを特徴とする
ミシンの加工布送り装置。1. A lower feed means having a lower feed tooth facing the upper surface of the needle plate from below and capable of adjusting the feed amount, and an upper feed tooth which abuts the lower feed tooth with a work cloth from above the needle plate. A work cloth feed device for a sewing machine, which comprises an upper feed means having a feed amount adjustable independently of the lower feed means, and a presser means having a presser foot for pressing the work cloth, The feed surface and the cloth feed surface of the presser foot of the pressing means are located parallel to the feed direction and close to the left and right,
A work cloth feed device for a sewing machine, characterized in that the work cloth feed device is configured to abut on a lower feed dog at a position near a left side of a needle drop position with a work cloth interposed therebetween. 【請求項２】 針板の上面に下方から臨む下送り歯を有
し且つ送り量を調整可能な下送り手段と、針板の上方か
ら加工布を隔てて下送り歯に当接する上送り歯を有し且
つ下送り手段とは独立に送り量を調整可能な上送り手段
と、加工布を押える押え足を有する押え手段とを備えた
ミシンの加工布送り装置において、 前記上送り歯の布送り面は、針落ち位置の左側付近の位
置において、前記下送り歯の略左半部に加工布を隔てて
当接するように構成され、 前記押え手段の押え足の布送り面は、前記上送り歯の右
側位置において、前記下送り歯の略右半部に加工布を隔
てて当接するように構成されたことを特徴とするミシン
の加工布送り装置。2. A lower feed means having a lower feed tooth facing the upper surface of the needle plate from the lower side and capable of adjusting the feed amount, and an upper feed tooth which abuts the lower feed tooth with the work cloth separated from above the needle plate. A work cloth feed device for a sewing machine, which comprises an upper feed means having a feed amount adjustable independently of the lower feed means, and a presser means having a presser foot for pressing the work cloth, The feed surface is configured to abut on the left half of the lower feed dog with a work cloth at a position near the left side of the needle drop position, and the cloth feed surface of the presser foot of the pressing means is the upper part. A work cloth feed device for a sewing machine, characterized in that, at the right side position of the feed dog, the work cloth is abutted on the substantially right half portion of the lower feed tooth with a work cloth interposed therebetween.