JPH081742Y2 - Sewing machine feeder - Google Patents

Description

【考案の詳細な説明】 ［産業上の利用分野］ 本考案はミシンの送り装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a feeding device of a sewing machine.

［従来の技術］ 従来、ラベル付け等に使用される電子模様縫いミシン
では、送り台上の昇降体に反転クランクを介して連結さ
れた板材により、生地上にラベルを位置決め保持し、針
の上下動に同期して、送り台、昇降体及び反転クランク
を一体に移動させて生地及びラベルに送りを付与し、そ
れよって板材の周囲に沿って閉鎖形状の縫目を形成する
ようになっている。また、この縫製動作中には、針との
干渉を避けるため、反転クランクを一度反転させて針の
上下動通路から退避させるようにしていた。[Prior Art] Conventionally, in the electronic pattern sewing machine used for labeling, the label material is positioned and held on the cloth by the plate material connected to the elevating body on the feed base through the reversing crank, and the needle is moved up and down. In synchronism with the movement, the feed table, the lifting body, and the reversing crank are integrally moved to feed the material and the label, thereby forming a closed seam along the periphery of the plate material. . Further, during this sewing operation, in order to avoid interference with the needle, the reversing crank is once inverted to retract from the vertical movement path of the needle.

［考案が解決しようとする課題］ ところが、前記反転クランクは一体的な部材として形
成されていたため、その昇降体側連結位置と位置決め板
側連結位置との間隔を調節したり、板材の配置位置を調
整したりすることができず、ラベルの縫い付け位置を微
調整するにも、また縫い付けるラベルの大きさが変わっ
た場合にも、位置決め板を反転クランクごと取り換えね
ばならず、非常に不便であった。[Problems to be solved by the invention] However, since the reversing crank is formed as an integral member, it is possible to adjust the distance between the lifting body-side connecting position and the positioning plate-side connecting position and adjust the plate material arrangement position. It is very inconvenient because the positioning plate must be replaced together with the reversing crank even when the label sewing position is finely adjusted or the size of the label to be sewn is changed. It was

本考案の目的は、反転クランクの昇降体側連結位置と
板材側連結位置との間隔を調節可能とすることにより、
板材によって縫製範囲内の任意の位置において加工布を
保持することができるとともに、反転クランクに対して
板材を容易に交換できるようにし、以て所望の大きさ及
び形状の板材を選択してその板材の外周に沿った閉鎖形
状の縫目を所望の位置に形成することのできるミシンの
送り装置を提供することにある。The object of the present invention is to make it possible to adjust the distance between the connecting position of the reversing crank on the lifting body side and the connecting position on the plate material side.
The work cloth can be held at any position within the sewing range by the plate material, and the plate material can be easily replaced with respect to the reversing crank, so that the plate material having a desired size and shape is selected and the plate material is selected. It is an object of the present invention to provide a sewing machine feed device capable of forming a closed stitch along the outer periphery of a sewing machine at a desired position.

［課題を解決するための手段］ 前記課題を解決するために本考案の送り装置は、針の
上下動通路と略直交する加工布支持面に沿って移動可能
に設けられた送り台と、前記加工布支持面に対し昇降可
能に前記送り台に設けられ、その送り台と一体に移動さ
れる昇降体と、その昇降体に一固定軸線の周りを回動可
能な反転クランクを介して設けられ、前記送り台との間
で加工布を保持可能な板材と、前記反転クランクを回動
させる駆動手段とを備え、その板材の外周に沿った閉鎖
形状の縫目を形成するミシンにおいて、 前記昇降体に前記固定軸線の周りを回動可能に支持さ
れた第一の脚部と、前記板材に前記固定軸線の周りを回
動可能に支持された第二の脚部と、前記両脚部の間隔を
調節可能に両脚部の自由端を相互連結する連結手段とか
ら構成し、更に、前記第二の脚部には取着部材を設け、
前記昇降体の降下に伴い取着部材と前記板材とが係合さ
れるように取着部材及び板材に係合部を設けたものであ
る。[Means for Solving the Problems] In order to solve the above problems, a feeding device according to the present invention comprises a feed table movably provided along a work cloth supporting surface that is substantially orthogonal to a vertical movement path of a needle, and An elevating body that is provided on the feed table so as to be able to move up and down with respect to the work cloth supporting surface, and is moved integrally with the feed table, and is provided on the elevating body via a reversing crank that is rotatable about one fixed axis. A sewing machine having a plate material capable of holding a work cloth between the feed table and a drive means for rotating the reversing crank, and forming a closed stitch along the outer periphery of the plate material, A first leg portion rotatably supported by the body around the fixed axis line, a second leg portion rotatably supported by the plate member around the fixed axis line, and a gap between the both leg portions. And the connecting means for interconnecting the free ends of both legs in an adjustable manner. And, further, the attachment member is provided in the second leg,
The attaching member and the plate member are provided with engaging portions so that the attaching member and the plate member are engaged with each other as the lifting body descends.

［作用］ 前記送り装置においては、縫製時、昇降体が下降位置
に配置されて、加工布が送り台と板材との間で保持され
る。そして、送り台が加工布支持面に沿って移動すると
共に、針が加工布に対し板材の外周に沿って縫目を形成
する。そして、所定数の縫目が形成された時、昇降体と
板材を連結している反転クランクは駆動手段によって反
転され、針の上下動通路から退避される。その後、加工
布に残りの縫目が形成されて、加工布に対する閉鎖形状
の縫目形成が終了する。[Operation] In the feeding device, the ascending / descending body is arranged at the lowered position during sewing, and the work cloth is held between the feed base and the plate material. Then, the feed table moves along the work cloth supporting surface, and the needle forms a stitch on the work cloth along the outer periphery of the plate material. Then, when a predetermined number of stitches are formed, the reversing crank that connects the lifting body and the plate member is reversed by the driving means and is retracted from the needle vertical movement passage. After that, the remaining seams are formed on the work cloth, and the formation of the closed-shape seams on the work cloth is completed.

反転クランクにおいて、第一の脚部と第二の脚部の自
由端は連結手段によって相互連結され、しかも、板材を
支持し、あるいは昇降体に支持されている両脚部の間隔
は連結手段の長さの範囲において任意に調節される。従
って、板材は昇降体からの取り付け距離を自由に変更で
き、加工布は縫製範囲内の任意の位置において保持され
る。In the reverse crank, the free ends of the first leg and the second leg are interconnected by the connecting means, and the distance between the two legs supporting the plate material or being supported by the lifting body is the length of the connecting means. It is arbitrarily adjusted in the range of the height. Therefore, the mounting distance of the plate material from the lifting body can be freely changed, and the work cloth is held at an arbitrary position within the sewing range.

又、板材は、昇降体の下降に伴い第二の脚部に設けら
れた取着部材と係合される構成であるため、加工布の閉
鎖形状の縫目の形状や大きさを変更したい場合には、昇
降体を上昇させた状態で別の板材を加工布支持面上に配
置すればよく、板材を単独で容易に交換できる。Further, since the plate material is configured to be engaged with the attachment member provided on the second leg portion as the lifting body descends, it is necessary to change the shape and size of the closed stitches of the work cloth. In this case, another plate member may be placed on the work cloth supporting surface in a state where the lifting body is raised, and the plate member can be easily replaced alone.

［実施例］ 以下に、本考案を具体化した一実施例を図面に従って
説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

まず最初に、本実施例のミシンによって製造される縫
製品について説明する。First, a sewn product manufactured by the sewing machine of this embodiment will be described.

第５図（ａ）に示すように、本実施例の縫製に先立っ
て行われる前工程では、生地C1上にそれよりも面積の狭
い略円形状の生地C2を重ね合せ、平面円形状の縫目Ｓを
形成して両生地C1及びC2を互いに縫い合せる。次に、第
５図（ｂ）に示すように、縫い合された両生地C1及びC2
の円形状の縫目Ｓの内側に、縫目Ｓと同心円状の孔Ｈを
形成した後、図中矢印で示すように、生地C2を孔Ｈの内
側へ折り込む。すると、第５図（ｃ）に示したように、
生地C1と生地C2の上下関係が反転すると共に、孔Ｈの縁
部には生地C1の折り返しによって形成された山部M1と、
生地C2折り返しによって形成された山部M2とが形成さ
れ、両山部M1,M2間には谷部Ｖが形成される。そして、
本実施例の縫製工程では、第５図（ｃ）の状態の布を加
工布Ｃとし、孔Ｈに板材としての布保持板22を嵌合させ
た状態で図中一点鎖線で示した位置に孔Ｈと同心円状の
補強縫いを施すものである。As shown in FIG. 5 (a), in the pre-process performed prior to the sewing in this embodiment, the substantially circular cloth C2 having a smaller area is laid on the cloth C1 to sew a circular surface. Form the eyes S and sew both fabrics C1 and C2 together. Next, as shown in FIG. 5 (b), both cloths C1 and C2 are sewn together.
After forming a hole H concentric with the seam S inside the circular seam S, the cloth C2 is folded inside the hole H as indicated by an arrow in the figure. Then, as shown in FIG. 5 (c),
The vertical relationship between the cloth C1 and the cloth C2 is reversed, and the mountain portion M1 formed by folding back the cloth C1 is formed at the edge of the hole H.
A mountain portion M2 formed by folding back the cloth C2 is formed, and a valley portion V is formed between both mountain portions M1 and M2. And
In the sewing process of this embodiment, the cloth in the state of FIG. 5 (c) is used as the work cloth C, and the hole H is fitted with the cloth holding plate 22 at the position shown by the dashed line in the figure. Reinforcing stitches that are concentric with the hole H are provided.

さて、第２図に示すように、ミシンの加工布支持面Ｐ
上には図示しない駆動機構により加工布支持面Ｐに沿っ
てX,Y方向へ移動可能な送り台１が設けられている。こ
の送り台１は本体部1aと、その本体部1aの前端部に着脱
可能に装着された布保持部材としてのカセット２とを有
している。Now, as shown in FIG. 2, the work cloth support surface P of the sewing machine
On the upper side, there is provided a feed table 1 which can be moved in the X and Y directions along the work cloth supporting surface P by a drive mechanism (not shown). The feed table 1 has a main body 1a and a cassette 2 as a cloth holding member detachably attached to the front end of the main body 1a.

第2,3図に示すように、カセット２は、平面四角形状
で中央部に円形状の露出孔３が形成された一対の挟持板
2a,2bからなり、それらは先端部において開閉可能に螺
着されている。そして、カセット２は加工布Ｃを両挟持
板2a,2b間に挟持して孔Ｈを前記露出孔３から露出させ
る。As shown in FIGS. 2 and 3, the cassette 2 comprises a pair of holding plates each having a square shape in a plan view and a circular exposure hole 3 formed in a central portion thereof.
It consists of 2a and 2b, which are screwed openably and closably at the tip. Then, the cassette 2 holds the work cloth C between the holding plates 2a and 2b to expose the hole H from the exposure hole 3.

前記露出孔３から露出する加工布Ｃの孔Ｈ内には、そ
の孔形状を維持するための板材としての布保持板22が着
脱可能に嵌合される。In the hole H of the work cloth C exposed from the exposure hole 3, a cloth holding plate 22 as a plate member for maintaining the hole shape is detachably fitted.

第1,2図に示すように、布保持板22はリング状に形成
されており、その中央の開口周縁には同心円状の嵌合凹
部23が形成されている。また、第４図に示すように、前
記布保持板22の外周面上において、その上端部及び下端
部には、加工布Ｃの孔Ｈの縁部が上下方向にずれるのを
規制するために、それぞれ係止突部24及び25が外周全体
にわたって鍔状に形成されると共に、同じく布保持板22
の外周面上において、両係止突部24及び25の中間位置に
も係止突部26が外周全体にわたって鍔状に形成されてい
る。そして、布保持板22が加工布Ｃの孔Ｈに嵌合された
状態では、各係止突部24,26間に生地C2の山部M2が保持
されると共に、各係止突部25,26間に生地C1の山部M1が
保持される。As shown in FIGS. 1 and 2, the cloth holding plate 22 is formed in a ring shape, and a concentric-shaped fitting recess 23 is formed in the peripheral edge of the center opening. Further, as shown in FIG. 4, on the outer peripheral surface of the cloth holding plate 22, at the upper end portion and the lower end portion thereof, in order to prevent the edge portion of the hole H of the work cloth C from being vertically displaced. , The respective locking projections 24 and 25 are formed in a brim shape over the entire outer periphery, and also the cloth holding plate 22
On the outer peripheral surface, a locking projection 26 is formed in a brim shape over the entire outer circumference at an intermediate position between the locking projections 24 and 25. Then, in the state where the cloth holding plate 22 is fitted in the hole H of the work cloth C, the mountain portion M2 of the cloth C2 is held between the locking projections 24 and 26, and the locking projections 25, The mountain portion M1 of the cloth C1 is held between 26.

一方、第２図に示すように、前記送り台１の後部上方
には一定間隔を隔てて一対の支柱４（一方のみ図示）が
設けられている。各支柱４の基端部にはそれぞれ送り台
１の前方向へ延びる支持腕５がその基端部において軸5a
にて回動可能に支持されている。また、第１〜３図に示
すように、両支持腕５の先端にはそれぞれ断面Ｌ字状の
連結具10が取着されており、これら連結具10間には昇降
体11が架設されている。前記各支柱４の先端部にはエア
シリンダ６及び各支持腕５のそれぞれの両側部に配置さ
れた一対の連結板７（一方のみ図示）が軸6aにて回動可
能に支持されている。また、各支持腕５にはＬ字アーム
８が軸8aにより回動可能に支持され、エアシリンダ６の
ピストン6bがブラケット９を介してＬ字アーム８の一端
に軸9aにて回動可能に連結されると共に、連結板７の先
端がＬ字アーム８の他端に軸7aにて回動可能に連結され
ている。従って、エアシリンダ６の作動に基づき、連結
板７及びＬ字アーム８等を介して、昇降体11は第２図に
示す作用位置と、加工布支持面Ｐから上方に離れた待機
位置との間を昇降される。On the other hand, as shown in FIG. 2, a pair of columns 4 (only one is shown) are provided above the rear portion of the feed table 1 at regular intervals. At the base end of each column 4, a support arm 5 extending in the front direction of the feed base 1 is provided at its base end with a shaft 5a.
It is rotatably supported by. Further, as shown in FIGS. 1 to 3, connecting tools 10 each having an L-shaped cross section are attached to the distal ends of both supporting arms 5, and an elevating body 11 is installed between these connecting tools 10. There is. A pair of connecting plates 7 (only one of which is shown) arranged on both sides of the air cylinder 6 and each supporting arm 5 are rotatably supported by a shaft 6a at the tip of each of the columns 4. Further, an L-shaped arm 8 is rotatably supported on each support arm 5 by a shaft 8a, and a piston 6b of an air cylinder 6 is rotatably supported by a shaft 9a at one end of the L-shaped arm 8 via a bracket 9. In addition to being connected, the tip of the connecting plate 7 is rotatably connected to the other end of the L-shaped arm 8 by a shaft 7a. Therefore, based on the operation of the air cylinder 6, the lifting / lowering body 11 moves between the working position shown in FIG. 2 and the standby position separated upward from the work cloth supporting surface P via the connecting plate 7 and the L-shaped arm 8. It is moved up and down.

ところで、この昇降体11の前方には前記布保持板22の
嵌合凹部23に離脱可能に嵌合する取着部材21が装着さ
れ、その上面には一対の軸受け部21aが突設されてい
る。これら軸受け部21a間には従動軸20が回動可能に支
持され、この従動軸20には一対の第二の脚部18が基端に
て一体回動可能に固着されている。前記嵌合凹部23並び
に取着部材21の周面及び底面により本考案の係合部が構
成されている。By the way, an attachment member 21 which is detachably fitted in the fitting concave portion 23 of the cloth holding plate 22 is mounted in front of the lifting body 11, and a pair of bearing portions 21a are projectingly provided on the upper surface thereof. . A driven shaft 20 is rotatably supported between the bearing portions 21a, and a pair of second leg portions 18 are fixed to the driven shaft 20 so as to be integrally rotatable at their base ends. The fitting recess 23 and the peripheral surface and the bottom surface of the attaching member 21 constitute an engaging portion of the present invention.

一方、第１図に示すように、前記昇降体11の中央部下
面側には軸受け部11bが突設され、その軸受け部11bによ
り駆動軸14が回動可能に支持されている。この駆動軸14
の前端部には駆動軸14の軸線方向に対して垂直に延びる
第一の脚部16が基端にて一体回動可能に装着されてい
る。On the other hand, as shown in FIG. 1, a bearing portion 11b is projectingly provided on the lower surface side of the central portion of the elevating body 11, and the drive shaft 14 is rotatably supported by the bearing portion 11b. This drive shaft 14
A first leg portion 16 extending perpendicularly to the axial direction of the drive shaft 14 is attached to the front end portion of the so as to be integrally rotatable at the base end.

この第一の脚部16と前記第二の脚部18の間には前記駆
動軸14と前記従動軸20とを同一軸線上に配置するための
シャフト17が架設されている。即ち、シャフト17の一端
部には第一の脚部16の先端部が固着され、各第二の脚部
18の先端部はシャフト17に対し位置調節可能に挿通され
ると共に、それぞれネジ19によりシャフト17上の任意の
調節位置において固定されている。そして、駆動軸14、
第一の脚部16、連結手段としてのシャフト17、第二の脚
部18及び従動軸20によって、駆動軸14及び従動軸20を通
る一固定軸線の周りに一体回動可能な反転クランクＢが
構成されている。A shaft 17 for arranging the drive shaft 14 and the driven shaft 20 on the same axis is provided between the first leg portion 16 and the second leg portion 18. That is, the tip of the first leg 16 is fixed to one end of the shaft 17, and each second leg is
The tip end of 18 is inserted into the shaft 17 so that its position can be adjusted, and is fixed by screws 19 at arbitrary adjusting positions on the shaft 17. And the drive shaft 14,
By the first leg portion 16, the shaft 17 as the connecting means, the second leg portion 18, and the driven shaft 20, the reversing crank B which is integrally rotatable around one fixed axis passing through the drive shaft 14 and the driven shaft 20. It is configured.

また、前記駆動軸14の後端部には駆動ギヤ15が一体回
転可能に装着されている。一方、昇降体11の中央部上面
側にアーチ状に突設されたモータ支持部11aには正逆回
転可能なロータリエアシリンダ12が支持され、その出力
軸12aに一体回転可能に装着された出力ギヤ13と前記駆
動ギヤ15が噛合されている。従って、第1,3図に示すよ
うに、反転クランクＢは駆動手段としてのロータリエア
シリンダ12の正方向又は逆方向への回動に基づき、出力
ギヤ13及び駆動ギヤ15の噛み合いを介し、同図に実線で
示した待機位置と二点鎖線で示した退避位置との間で反
転移動される。A drive gear 15 is attached to the rear end of the drive shaft 14 so as to rotate integrally. On the other hand, a rotary air cylinder 12 capable of rotating in the forward and reverse directions is supported by a motor supporting portion 11a protruding in an arch shape on the upper surface side of the central portion of the lifting body 11, and an output mounted integrally rotatably on its output shaft 12a. The gear 13 and the drive gear 15 are meshed with each other. Therefore, as shown in FIGS. 1 and 3, the reversing crank B is driven by rotation of the rotary air cylinder 12 as a driving means in the forward or reverse direction, through the meshing of the output gear 13 and the drive gear 15, The reverse movement is performed between the standby position shown by the solid line in the figure and the retracted position shown by the chain double-dashed line.

次に、上述のように構成された送り装置を使用して、
加工布Ｃに形成された孔Ｈの縁部に補強縫いを施す場合
の作用について説明する。Then, using the feeder configured as described above,
The operation when the reinforcement sewing is applied to the edge portion of the hole H formed in the work cloth C will be described.

さて、ミシンの待機状態にあっては、第２図に示すエ
アシリンダ６の作用により、昇降体11が加工布支持面Ｐ
上方の待機位置に配置され、反転クランクＢ及び取着部
材21がカセット２から距離を隔てた上方位置に配置され
ている。In the standby state of the sewing machine, the lifting / lowering body 11 moves the work cloth supporting surface P by the action of the air cylinder 6 shown in FIG.
The reverse crank B and the attachment member 21 are arranged at an upper standby position, and are arranged at an upper position spaced apart from the cassette 2.

そこで、前記加工布Ｃの孔Ｈの周囲に縫目を形成する
ため、第３図に示すように加工布Ｃを生地C2が上面にな
るように、カセット２の上下の挟持板2a,2b間に挟持す
ると共に、カセット２の露出孔３の中心部分に加工布Ｃ
の孔Ｈを配置した後、カセット２を送り台１に取り付け
る。また、加工布Ｃの孔Ｈに布保持板22を嵌合させ、第
４図に示すように、布保持板22の係止突部24及び26間並
びに係止突部26及び25間にそれぞれ加工布Ｃの山部M2及
びM1を押し込むと共に、加工布Ｃの谷部Ｖには布保持板
22の係止突部26を進入させる。すると、加工布Ｃの孔Ｈ
はその円形状が崩れないように布保持板22によって保持
されると共に、縁部が自由端として上下方向にずれるの
を規制される。Therefore, in order to form a seam around the hole H of the work cloth C, as shown in FIG. 3, the work cloth C is placed between the upper and lower sandwiching plates 2a and 2b of the cassette 2 so that the cloth C2 is on the upper surface. And the work cloth C at the center of the exposure hole 3 of the cassette 2
After arranging the holes H, the cassette 2 is attached to the feed table 1. Further, the cloth holding plate 22 is fitted into the hole H of the work cloth C, and as shown in FIG. 4, between the locking projections 24 and 26 and between the locking projections 26 and 25 of the cloth holding plate 22, respectively. While pushing in the ridges M2 and M1 of the work cloth C, the work cloth C has a cloth holding plate in the valley portion V.
The locking projection 26 of 22 is inserted. Then, the hole H of the work cloth C
Is held by the cloth holding plate 22 so that its circular shape does not collapse, and the edge is restricted from shifting in the vertical direction as a free end.

上記の状態で、エアシリンダ５の作用により昇降体11
が第２図に実線で示す作用位置まで下降する。それに伴
い、取着部材21は布保持板22の嵌合凹部23に嵌合する。
こうして、布保持板22と送り台１との連結が完了し、カ
セット２、布保持板22及び送り台１は一体化される。In the above state, the lifting / lowering body 11 is operated by the action of the air cylinder 5.
Moves down to the operating position shown by the solid line in FIG. Along with this, the attachment member 21 is fitted into the fitting recess 23 of the cloth holding plate 22.
In this way, the connection between the cloth holding plate 22 and the feed base 1 is completed, and the cassette 2, the cloth holding plate 22 and the feed base 1 are integrated.

次に、カセット２、布保持板22及び送り台１が図示し
ないX,Y駆動装置の作用により、加工布支持面Ｐ上にお
いて一体移動され、その移動に基づき加工布Ｃの孔Ｈの
縁部付近における縫製開始位置が、第３図に二点鎖線で
示した縫目形成手段の縫い針Ｎ及び周知の間欠押えＬに
対して相対配置される。上記のX,Y駆動装置は送り台１
をＸ方向及びＹ方向へそれぞれ移動するために送り台１
に作動連結された一対のパルスモータから構成され、各
パルスモータは閉鎖形状の縫製パターンに従って予め定
められたX,Y送りデータに基づいて回転駆動される。Next, the cassette 2, the cloth holding plate 22, and the feed base 1 are integrally moved on the work cloth supporting surface P by the action of an X, Y drive device (not shown), and based on the movement, the edge portion of the hole H of the work cloth C is moved. The sewing start position in the vicinity is relatively arranged with respect to the sewing needle N of the stitch forming means and the known intermittent presser L shown by the two-dot chain line in FIG. The above X and Y drive device is a feed table 1
To move the machine in the X and Y directions, respectively.
Each of the pulse motors is rotationally driven based on predetermined X and Y feed data according to a closed sewing pattern.

この状態で縫製動作が開始され、縫い針Ｎが上下動さ
れると共に、その上下動に同期して加工布ＣがX,Y方向
へ移動されると、加工布Ｃの孔Ｈの縁部に縫目が形成さ
れる。そして、加工布Ｃの孔Ｈの縁部におよそ半周分の
縫目が形成されると、縫い針Ｎと反転クランクＢの干渉
を回避するため、ロータリエアシリンダ12が作動され、
反転クランクＢは第３図の実線位置から180度回動して
二点鎖線で示した退避位置に回動する。この反転クラン
クＢの退避によって、加工布Ｃの孔Ｈの縁部の残り半周
分に対し、引き続き縫目を形成することができる。そし
て、加工布Ｃが縫製開始位置に戻った時、加工布Ｃの孔
Ｈの縁部には孔Ｈと同心円状に閉鎖した縫目が形成さ
れ、加工布Ｃに対する補強縫いが完了する。When the sewing operation is started in this state, the sewing needle N is moved up and down, and the work cloth C is moved in the X and Y directions in synchronization with the up and down movement, the edge of the hole H of the work cloth C is A seam is formed. Then, when a seam for about half a circumference is formed at the edge of the hole H of the work cloth C, the rotary air cylinder 12 is operated to avoid the interference between the sewing needle N and the reverse crank B,
The reverse crank B rotates 180 degrees from the solid line position in FIG. 3 and rotates to the retracted position shown by the chain double-dashed line. By retracting the reverse crank B, the seam can be continuously formed on the remaining half circumference of the edge portion of the hole H of the work cloth C. Then, when the work cloth C returns to the sewing start position, a seam closed concentrically with the hole H is formed at the edge of the hole H of the work cloth C, and the reinforcement sewing for the work cloth C is completed.

縫製が完了すると、カセット２及び布保持板22は送り
台１と共に、加工布支持面Ｐ上を一体移動して最初の待
機位置に戻される。そして、昇降体11はエアシリンダ６
の作用によって再び上方の待機位置に戻され、布保持板
22と取着部材21との嵌合が外れて、加工布Ｃの取換えが
可能となる。When the sewing is completed, the cassette 2 and the cloth holding plate 22 move together with the feed base 1 on the work cloth supporting surface P and are returned to the initial standby position. The lifting body 11 is the air cylinder 6
Is returned to the upper standby position again by the action of the
The work cloth C can be replaced by disengaging the fitting member 22 from the fitting member 21.

このように本実施例の送り装置によれば、加工布Ｃに
形成された孔Ｈは布保持板22によって孔Ｈの円形状が崩
れないように保持されるため、孔Ｈの縁部への縫製が正
確に施され、丈夫で美しい縫目を確実に形成することが
できる。また、布保持板22の外周部に形成された係止突
部24,25及び26によって加工布Ｃの孔Ｈの縁部が上下方
向にずれないように規制されるため、孔Ｈの円形状の保
持がより確実となる。As described above, according to the feeding device of the present embodiment, the hole H formed in the work cloth C is held by the cloth holding plate 22 so that the circular shape of the hole H is not collapsed. The sewing is performed accurately, and a strong and beautiful seam can be surely formed. Further, since the edge portions of the hole H of the work cloth C are regulated by the locking projections 24, 25 and 26 formed on the outer peripheral portion of the cloth holding plate 22 so as not to be displaced in the vertical direction, the circular shape of the hole H is formed. Will be held more reliably.

一方、反転クランクＢの第一の脚部16と第二の脚部18
との間隔は調節可能であり、送り台本体部1a前端部から
取着部材21までの距離をシャフト17の長さの範囲で任意
に変更することができる。従って、反転クランクＢを取
り換えることなく布保持板22の配置位置を前後に調節す
ることができる。また、布保持板22に対して取着部材21
を嵌合させるための微妙な位置調整についても容易に行
うことができる。On the other hand, the first leg 16 and the second leg 18 of the reverse crank B
The distance between and can be adjusted, and the distance from the front end of the feed base body 1a to the attachment member 21 can be arbitrarily changed within the range of the length of the shaft 17. Therefore, the arrangement position of the cloth holding plate 22 can be adjusted back and forth without replacing the reverse crank B. The attachment member 21 is attached to the cloth holding plate 22.
It is also possible to easily perform delicate position adjustment for fitting the.

更に、取着部材21と布保持板22を別体としたことによ
り、カセット２、布保持板22及び送り台１が一体化され
る前に予め布保持板22を加工布Ｃの孔Ｈに嵌合させるこ
とができるため、布保持板22の孔Ｈへの嵌め込みが容易
となる。故に、反転クランクＢの先端部に布保持板22が
取り付け固定された状態でこれを加工布Ｃの孔Ｈに嵌合
させる場合に比べ、反転クランクＢが邪魔になることが
なく、作業性が極めてよい。Further, by making the attachment member 21 and the cloth holding plate 22 separate, the cloth holding plate 22 is preliminarily formed in the hole H of the work cloth C before the cassette 2, the cloth holding plate 22 and the feed base 1 are integrated. Since they can be fitted, the cloth holding plate 22 can be easily fitted into the hole H. Therefore, as compared with the case where the cloth holding plate 22 is attached and fixed to the tip of the reversing crank B and fitted into the hole H of the work cloth C, the reversing crank B does not get in the way and the workability is improved. Very good.

また、取着部材21と布保持板22を別体としたことによ
り、加工布Ｃの孔Ｈの大きさが変更された時でも、布保
持板22の大きさを変更するだけで容易に対処することが
できるばかりか、布保持板22を複数個用意しておくこと
によって、一つの加工布Ｃの縫製中に次の加工布Ｃの孔
Ｈに布保持板22を嵌め込んで縫製準備をすることがで
き、作業時間を有効利用することができる。In addition, since the attachment member 21 and the cloth holding plate 22 are formed separately, even when the size of the hole H of the work cloth C is changed, it is possible to easily cope with the change by simply changing the size of the cloth holding plate 22. Not only can it be done, but by preparing a plurality of cloth holding plates 22, the cloth holding plate 22 can be fitted into the hole H of the next processed cloth C during sewing of one processed cloth C to prepare for sewing. Therefore, the working time can be effectively used.

本考案は前記実施例に限定されるものではなく、次の
ように実施してもよい。即ち、 （１）布保持板の外形を楕円形状あるいは四角形状等に
変更すること。The present invention is not limited to the above embodiment, but may be implemented as follows. That is, (1) Change the outer shape of the cloth holding plate to an elliptical shape, a square shape, or the like.

（２）第一の脚部をシャフト上の任意の位置で固定可能
として、第一及び第二の脚部間の間隔を調節可能とする
こと。(2) The first leg can be fixed at any position on the shaft, and the distance between the first and second legs can be adjusted.

（３）本考案の送り装置をラベル縫着用のミシンに具体
化すること。(3) The feed device of the present invention is embodied in a sewing machine for label sewing.

［考案の効果］ 以上詳述したように本考案によれば、反転クランクの
両脚部の間隔を調節可能とすることにより、板材によっ
て縫製範囲内の任意の位置において加工布を保持するこ
とができ、しかも加工布の閉鎖形状の縫目の形状や大き
さを変更したい場合には、昇降体を上昇させた状態で別
の板材を加工布支持面上に配置すればよく、その結果、
所望の大きさ及び形状の板材を選択してその板材の外周
に沿った閉鎖形状の縫目を加工布の所望の位置に形成す
ることができるという優れた効果を奏する。[Advantages of the Invention] As described in detail above, according to the present invention, the work cloth can be held by the plate material at any position within the sewing range by adjusting the distance between both legs of the reversing crank. In addition, if you want to change the shape or size of the closed stitches of the work cloth, you can place another plate on the work cloth support surface with the lifting body raised, and as a result,
This has an excellent effect that a plate material having a desired size and shape can be selected and a closed seam along the outer periphery of the plate material can be formed at a desired position of the work cloth.

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

第１〜４図は本考案を具体化した一実施例を示し、第１
図は布保持板及び反転クランクを示す斜視図、第２図は
送り装置全体を示す側面図、第３図は要部平面図、第４
図は布保持板の部分拡大断面図、第５図（ａ）〜（ｃ）
は縫製に使用した加工布の制作前工程を示す説明図であ
る。 １…送り台、11…昇降体、12…駆動手段としてのロータ
リエアシリンダ、16…第一の脚部、17…連結手段として
のシャフト、18…第二の脚部、２…取着部材、22…板材
としての布保持板、23…係合部を構成する嵌合凹部、Ｂ
…反転クランク、Ｃ…加工布、Ｎ…縫い針、Ｐ…加工布
支持面。1 to 4 show an embodiment embodying the present invention.
FIG. 2 is a perspective view showing a cloth holding plate and a reverse crank, FIG. 2 is a side view showing the entire feeding device, FIG.
The figure is a partially enlarged sectional view of the cloth holding plate, and FIGS. 5 (a) to 5 (c).
FIG. 8 is an explanatory diagram showing a pre-production process of the work cloth used for sewing. DESCRIPTION OF SYMBOLS 1 ... Feeding table, 11 ... Elevating body, 12 ... Rotary air cylinder as a drive means, 16 ... First leg part, 17 ... Shaft as a connecting means, 18 ... Second leg part, 2 ... Attachment member, 22 ... Cloth holding plate as a plate material, 23 ... Fitting concave portion constituting the engaging portion, B
... Inverted crank, C ... Work cloth, N ... Sewing needle, P ... Work cloth support surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】針（Ｎ）の上下動通路と略直交する加工布
支持面（Ｐ）に沿って移動可能に設けられた送り台
（１）と、 前記加工布支持面（Ｐ）に対し昇降可能に前記送り台
（１）に設けられ、その送り台（１）と一体に移動され
る昇降体（11）と、 その昇降体（11）に一固定軸線の周りを回動可能な反転
クランク（Ｂ）を介して設けられ、前記送り台（１）と
の間で加工布（Ｃ）を保持可能な板材（22）と、 前記反転クランク（Ｂ）を回動させる駆動手段（12）と を備え、その板材（22）の外周に沿った閉鎖形状の縫目
を形成するミシンにおいて、 前記反転クランク（Ｂ）を、前記昇降体（11）に前記固
定軸線の周りを回動可能に支持された第一の脚部（16）
と、前記板材（22）に前記固定軸線の周りを回動可能に
支持された第二の脚部（18）と、前記両脚部（16,18）
の間隔を調節可能に両脚部（16,18）の自由端を相互連
結する連結手段（17）とから構成し、更に、前記第二の
脚部（18）には取着部材（21）を設け、前記昇降体（1
1）の降下に伴い取着部材（21）と前記板材（22）とが
係合されるように取着部材（21）及び板材（22）に係合
部（23等）を設けたことを特徴とするミシンの送り装
置。1. A feed table (1) movably provided along a work cloth support surface (P) substantially orthogonal to a vertical movement path of a needle (N), and with respect to the work cloth support surface (P). A lifting body (11) that is provided on the feed table (1) so as to be able to move up and down, and is moved integrally with the feed table (1), and an inversion body that is rotatable around a fixed axis on the lifting body (11). A plate member (22) provided via a crank (B) and capable of holding the work cloth (C) between the feed table (1) and a driving means (12) for rotating the reversing crank (B). A sewing machine having a closed seam along the outer periphery of the plate material (22), wherein the reversing crank (B) is rotatable around the fixed axis on the lifting body (11). First leg supported (16)
A second leg portion (18) rotatably supported by the plate member (22) around the fixed axis; and both leg portions (16, 18)
And a connecting means (17) for interconnecting the free ends of both leg parts (16, 18) so that the distance between them can be adjusted. Furthermore, an attachment member (21) is attached to the second leg part (18). Provide the above-mentioned lifting body (1
The engaging member (21) and the plate member (22) are provided with engaging portions (23, etc.) so that the attaching member (21) and the plate member (22) are engaged with each other as (1) is lowered. Characteristic sewing machine feed device.