JPH01308585A - Upper and lower feed gear working regulating method for overlock machine, and its device - Google Patents
Upper and lower feed gear working regulating method for overlock machine, and its deviceInfo
- Publication number
- JPH01308585A JPH01308585A JP13918288A JP13918288A JPH01308585A JP H01308585 A JPH01308585 A JP H01308585A JP 13918288 A JP13918288 A JP 13918288A JP 13918288 A JP13918288 A JP 13918288A JP H01308585 A JPH01308585 A JP H01308585A
- Authority
- JP
- Japan
- Prior art keywords
- feed
- right front
- shaft
- front feed
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 4
- 230000001105 regulatory effect Effects 0.000 title 1
- 239000004744 fabric Substances 0.000 claims abstract description 30
- 230000033001 locomotion Effects 0.000 claims abstract description 22
- 238000009958 sewing Methods 0.000 claims abstract description 20
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は特に伸縮性のある生地を縫製するオーバーロッ
クミシンの右側生地の送り量を調整することにより、生
地の左右何れか一方を強制的に多（も少なくも送り込む
ことができるようにすると共に、縫製される生地の部分
的厚薄又は段部等がある場合、上送り歯が瞬時に自動的
に昇降対応できるような方法並びにその装置を提供する
ものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention is particularly applicable to an overlock sewing machine that sews stretchable fabrics, by adjusting the feeding amount of the right side fabric. In addition to providing a method and device that enables the upper feed dog to be raised and lowered instantly and automatically when the fabric to be sewn has partially thick and thin sections or stepped sections, etc. This is what we provide.
従来、この種オーバーロックミシンの生地送り機構とし
ては種々開示される所であるが、生地の右側、特に針板
爪付近がスムースに送られ難く、絶えず生地の左側が優
先的に送られる傾向があると共に、縫製目的物たる生地
の部分的厚薄や、縫い合わせ段部等に即応して軽くデリ
ケートに上送り歯を上下に昇降調整することができず、
又は生地に損傷を与えるような欠点があった。Conventionally, various fabric feeding mechanisms for this type of overlock sewing machine have been disclosed, but it is difficult to feed the fabric smoothly on the right side, especially near the throat plate claw, and the left side of the fabric always tends to be fed preferentially. At the same time, it is not possible to lightly and delicately adjust the upper feed dog up and down in response to the partial thickness of the fabric that is the object of sewing, or the stepped seam sections.
Or there was a defect that caused damage to the fabric.
前記の通り、従来の手段としては、縫製時生地の左側が
優先的に送られる傾向があり、縫製中に生地の逃げが発
生したり、縫い終わり生地の逃げが集積され、生地に送
り擦れが発生し、縫製品の品質低下や不良品を生ずる欠
点を解消すると共に、生地の部分的厚薄や縫い合わせ段
部等において上送り歯が即応昇降する必要がある場合、
一連の比較的重い部材で支持されているため、デリケー
トに即応昇降し難（、そのため生地の損傷を生ずる等の
欠点を除去することのできる方法並びに装置を提供する
のが本発明の目的である。As mentioned above, with conventional methods, the left side of the fabric tends to be fed preferentially during sewing, which can cause fabric to run out during sewing, accumulate fabric to run out at the end of sewing, and cause feed rubbing on the fabric. In addition to eliminating the defects that occur when the fabric is partially thickened or thinned, or when the upper feed dog needs to move up and down in response to problems such as seaming steps, etc.,
SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and a device which can eliminate the drawbacks such as being supported by a series of relatively heavy members, making it difficult to raise and lower delicately and quickly, thereby causing damage to the fabric. .
本発明は前記目的を達成するために下前送り歯自体を左
右二部分に分割し、生地の左右差動送りをなす手段を設
けると共に、既存の上送り歯上上揺動装置台を二分割し
て上送り台ガイド腕と、上送り台ガイドを設けて両者を
軸着し、核部に存する軸孔ｅ、 ｅ、 ｆの形状を
、がたつかず僅かに融通性のあるようにし、生地の部分
的厚薄或いは縫い合わせ段部等に応じて作動する部材を
軽量化させ、生地の変化に対する抵抗を減少し、即応昇
降し易く、且つ軸部においても一方の軸孔ｅ、ｅ又はｆ
の何れかを軸杆ｇに密嵌する直円とせず、僅かに楕円形
としたから、枢動に当たり融通性があると共に、その短
径は眞円状の軸孔と等しくしたから、がたつくおそれが
なく、良好デリケートな昇降が即応的にできるものであ
る。In order to achieve the above object, the present invention divides the lower front feed dog itself into left and right parts, provides a means for differentially feeding the fabric on the left and right sides, and divides the existing upper feed dog upper swinging device stand into two parts. Then, an upper feed guide arm and an upper feed guide are installed, and the two are pivoted, and the shapes of the shaft holes e, e, and f in the core are made to be slightly flexible without wobbling, and the fabric It is possible to reduce the weight of the members that operate according to the partial thickness or thickness of the part or the seamed stepped parts, reduce the resistance to changes in the fabric, and make it easy to move up and down in a quick response.
Since one of the holes is not a right circle that fits closely into the shaft g, but is slightly oval, it provides flexibility in pivoting, and its minor axis is made equal to the circular shaft hole, so there is no risk of rattling. There is no problem, and delicate lifting and lowering can be done quickly.
今、ここに本発明実施の一例を示した添付図面について
詳説する。Reference will now be made in detail to the accompanying drawings, which illustrate one example of carrying out the invention.
１はクランクシャフトで、ミシン回転の駆動源である。1 is a crankshaft, which is the driving source for rotating the sewing machine.
２はロッドで、基端はクランクシャフトｌに嵌入され、
他端は連結ピン３で送り軸腕４に連結される。該連続ビ
ン３はロッド２、送り軸腕４、右前送り軸リンク６を連
結するためのものである。前記送り軸腕４はクランクシ
ャツ）１の回転をロッド２、連結ピン３を介して送り軸
５に揺動運動を与えるものである。前記右前送り軸リン
ク６は、上端が連結ピン３で、ロッド２及び送り軸腕４
に連結されている。８は右前送り軸腕で、連結ピン７で
前記右前送りリンク６に連結される。１０は右前送り腕
で、上部は凹状部で、核部に右前送り腕駒１２が嵌入さ
れている。１１は右前送り軸で、右前送り腕８が取付け
られ、ロッド２よりの伝達で、該軸１１は揺動運動を行
い、右前送り腕駒１２を介して右前送り台１３を左右に
運動させる。前記右前送り腕駒１２は、右前送り台１３
を左右運動させるものである。前記右前送り台１３はＬ
字状で下部は二叉状部を成形し、該二叉状部には右前送
り駒２７が嵌入される。また該右前送り台１３の右端に
は右前送り歯２６が取付けられており、右前送り軸１１
の揺動運動を右前送り駒２７で右前送り軸１１を支点と
して右前送り台１３を左右運動に転換する。１４は連結
ピンで、右前送り腕駒１２、右前送り駒２７、右前送り
リンク１５に嵌入されている。斯くして該右前送りリン
ク１５は右前送り台１３の左右運動量を調整するもので
ある。１６は右側右前送り差動レバーで、右端は連結ピ
ン１７で右前送りリンク１５と連結され、左端は右前送
り作動レバー軸１８に取付けられ、右前送りリンク１５
と相俟って、右前送り台１３の左右の運動量を調節する
ものである。前記連結ピン１７は右前送りリンク１５と
右側右前送り差動レバー１６を連結するものである。前
記右前送り差動レバー軸１８は先端には右側右前送り差
動レバー１６が取付けられ、該軸を中心として右側右前
送り差動レバー１．６を上下に調節することにより右前
送り腕部１２が上下し、その右前送り軸１１からのピン
チの長短により右前送り台１３の左右の運動量を調節す
る。2 is a rod, the base end of which is fitted into the crankshaft l;
The other end is connected to the feed shaft arm 4 by a connecting pin 3. The continuous bin 3 is for connecting the rod 2, the feed shaft arm 4, and the right forward feed shaft link 6. The feed shaft arm 4 applies the rotation of the crank shirt 1 to the feed shaft 5 through a rod 2 and a connecting pin 3 to give a swinging motion. The right front feed shaft link 6 has a connecting pin 3 at its upper end, and is connected to the rod 2 and the feed shaft arm 4.
is connected to. Reference numeral 8 denotes a right forward feed shaft arm, which is connected to the right forward feed link 6 by a connecting pin 7. Reference numeral 10 denotes a right forward-feeding arm, the upper part of which is a concave portion, into which a right forward-feeding arm piece 12 is fitted. Reference numeral 11 denotes a right forward feed shaft to which the right forward feed arm 8 is attached, and the shaft 11 performs an oscillating motion by the transmission from the rod 2, and moves the right forward feed table 13 to the left and right via the right forward feed arm piece 12. The right forward feed arm piece 12 is connected to the right forward feed stand 13.
It is used to move left and right. The right front feed base 13 is L
It is shaped like a letter, and the lower part is formed into a fork-shaped part, and a right front feed piece 27 is fitted into the fork-shaped part. Further, a right front feed tooth 26 is attached to the right end of the right front feed base 13, and a right front feed shaft 11 is attached to the right front feed tooth 26.
The right front feed piece 27 converts the swinging motion of the right front feed table 13 into a left-right movement using the right front feed shaft 11 as a fulcrum. Reference numeral 14 denotes a connecting pin, which is fitted into the right forward feed arm piece 12, the right forward feed piece 27, and the right forward feed link 15. The right front feed link 15 thus adjusts the amount of left and right movement of the right front feed table 13. Reference numeral 16 denotes a right forward feed differential lever, the right end of which is connected to the right forward feed link 15 with a connecting pin 17, and the left end of which is attached to the right forward feed operating lever shaft 18, which connects the right forward feed link 15.
Together with this, the amount of movement of the right front feed base 13 in the left and right directions is adjusted. The connecting pin 17 connects the right front feed link 15 and the right front right forward feed differential lever 16. The right forward feed differential lever shaft 18 has a right forward feed differential lever 16 attached to its tip, and by adjusting the right forward feed differential lever 1.6 up and down about the shaft, the right forward feed arm portion 12 can be adjusted. It moves up and down, and the amount of left and right movement of the right front feed table 13 is adjusted by the length of the pinch from the right front feed shaft 11.
１９は前送り台で、右端には前送り歯２１が取付けられ
、前送り歯２１を左右に運動させる。Reference numeral 19 denotes a forward feed table, and a forward feed tooth 21 is attached to the right end thereof, and the front feed tooth 21 is moved from side to side.
２０は角駒で、前送り台１９、後送り台２５に嵌入され
ており、該送り台１９．２５の上下運動を司るものであ
る。２１は前送り歯で、生地を送り込むもの、２２は後
送り歯で、前送り歯２１、同様生地を送り込むもの、２
３は針板爪部で、縫い目構成を司る位置。２４は針板、
前記後送り台２５右端には後送り歯２２が取付けられ、
後送り歯２２を左右に運動させる。A square piece 20 is fitted into the front feeder 19 and the rear feeder 25, and controls the vertical movement of the feeder 19 and 25. 21 is a front feed tooth that feeds the fabric; 22 is a rear feed tooth that feeds the fabric similarly to the front feed dog 21;
3 is the throat plate pawl, which is the position that controls the stitch configuration. 24 is the needle plate;
A rear feed tooth 22 is attached to the right end of the rear feed table 25,
The rear feed dog 22 is moved left and right.
前記右前送り歯２６は右前送り台１３に取付けられてお
り、右前送り台１３の運動により前送り歯２１と差動運
動ができ、生地右側部を左側より多くも、また少な（も
送り込むことができる。前記右前送り駒２７は右前送り
台１３の二又部に嵌入され、右前送りリンク１５、右側
右前送り差動レバー１６の調節により該部２７の位置を
変更して、右前送り歯２６の差動量を変更することがで
きる。２日は右前送り腕蓋で、右前送り腕ｌＯに嵌入さ
れており、右前送り腕・駒１２が離脱しないように覆う
ものである。２９は左側右前送り軸ブツシユ、３０は右
側右前送り軸ブツシユで、右前送り軸１１の軸受けであ
る。３１は右前送り軸カラーで、右前送り軸１１のスラ
スト方向の位置を決めるもの、３２はミシンフレームで
ある。The right front feed dog 26 is attached to the right front feed table 13, and the movement of the right front feed table 13 allows differential movement with the front feed dog 21, so that the right side of the fabric can be fed more or less than the left side. The right front feed piece 27 is fitted into the forked portion of the right front feed bar 13, and the position of this portion 27 is changed by adjusting the right front feed link 15 and the right right front feed differential lever 16, and the right front feed tooth 26 is moved. The amount of differential movement can be changed. 2nd is the right forward feed arm cover, which is fitted into the right forward feed arm lO and covers the right forward feed arm/piece 12 from falling off. 29 is the left right forward feed arm cover. The shaft bush, 30, is a right front feed shaft bush, which is a bearing for the right front feed shaft 11. 31 is a right front feed shaft collar, which determines the position of the right front feed shaft 11 in the thrust direction, and 32 is a sewing machine frame.
更に第６図乃至第９図においては、ａは上送り台ガイド
腕で、押さえ軸ブツシユｈに基部を固定し、先端は二又
部Ｃを形成し、該二又部Ｃ９Ｃに一貫して軸孔ｅ、ｅを
貫設する。ｂは上送り台で、先端に上送り歯ｉが取付け
られる。他端は連結ピンにでリンクｌに連結される。Ｃ
は二又部で、核部に前記したように軸孔ｅ、ｅが貫設さ
れ、上送り台ガイドｊの挿嵌部ｄが密嵌され、核部の軸
孔ｆと軸孔ｅ、ｅに軸杆ｇが貫入され上送り台ガイド腕
ａと上送り台ガイドｊが連結される。ｄは挿嵌部で上送
り台ガイド腕ａの又部に密嵌される。ｅ、 ｆは軸孔
、ｇは軸杆で、軸孔ｅ、 ｅ、 ｆに貫入し、軸孔
ｅ、 ｅ。Further, in FIGS. 6 to 9, a is an upper feed guide arm, the base of which is fixed to the presser shaft bush h, the tip of which forms a forked portion C, and the shaft is consistently attached to the forked portion C9C. Holes e and e are provided through the hole e. b is an upper feed base, and an upper feed dog i is attached to the tip. The other end is connected to link 1 through a connecting pin. C
is a forked part, and the shaft holes e and e are penetrated through the core part as described above, and the insertion part d of the upper feed guide j is tightly fitted, and the shaft hole f of the core part and the shaft holes e and e are inserted. The shaft g is inserted into the upper feed bar guide arm a and the upper feed bar guide j are connected. d is a fitting portion that is tightly fitted into the crotch portion of the guide arm a of the upper feed table. e and f are shaft holes, and g is a shaft rod, which penetrates shaft holes e, e, and f, and shaft holes e, e.
ｆ、軸杆ｇで本願出願の要旨たる上送り歯の昇降装置の
枢要をなす部分である。ｈは押さえ軸ブツシユ、ｉは上
送り歯、ｊは上送り台ガイドで、略中央部には前記した
挿嵌部ｄが設けられている。また、該ガイドは凹状の形
状を呈しており、凹部には上送り台すが遊嵌されている
。f, shaft g, which is a key part of the upper feed dog elevating device which is the gist of the present application. h is a presser shaft bush, i is an upper feed dog, j is an upper feed guide, and the above-mentioned insertion part d is provided approximately in the center. Further, the guide has a concave shape, and an upper feed table is loosely fitted into the concave portion.
ｋは連結ピン、ｌはリンク、ｍは布押さえ、ｎは押さえ
腕である。k is a connecting pin, l is a link, m is a cloth presser, and n is a presser arm.
本発明は以上のような構成で、次に右前送り歯２６の差
動とその調節についての作用を詳説する。The present invention has the above-described configuration, and the operation of the differential movement of the right front feed dog 26 and its adjustment will be explained in detail next.
クランクシャフトｌの駆動によりロッド２は第３図に示
すように矢印Ａのように運動し、送り軸腕４を介して送
り軸５に揺動運動を伝える。Driven by the crankshaft l, the rod 2 moves in the direction of arrow A, as shown in FIG. 3, and transmits a swing motion to the feed shaft 5 via the feed shaft arm 4.
その揺動運動は右前送りリンク６と右前送り軸腕８を介
して右前送り軸１１に揺動運動を伝える。第１図に示す
右前送り軸１１に固定されている右前送り軸腕８が左右
に動くと、右前送り台１３の二又部に嵌入されている右
前送り駒２７も左右に運動し、その運動が右前送り台１
３に取付けられている右前送り歯２６が左右に運動する
。前送り歯２１の動き量と右前送り歯２６の動き量を変
更させるには、右側右前送り差動レバー１６を上下させ
ることにより、右前送り駒２７を右前送りリンク１５を
介して上下に移動させ、右前送り歯２６は任意の差動量
を得ることができるものである。The rocking motion is transmitted to the right forward feed shaft 11 via the right forward feed link 6 and the right forward feed shaft arm 8. When the right forward feed shaft arm 8 fixed to the right forward feed shaft 11 shown in FIG. is the right front feed base 1
The right front feed dog 26 attached to 3 moves left and right. In order to change the amount of movement of the front feed dog 21 and the right front feed dog 26, the right front feed piece 27 is moved up and down via the right front feed link 15 by moving the right front feed differential lever 16 up and down. , the right front feed dog 26 can obtain an arbitrary amount of differential movement.
更に第６図以下の装置においてはく生地の段部又は厚薄
部分等が縫い目形底位置に来た場合、上送り歯を自動的
に押し上げるものであるが、上送り歯ｉを取付けた上送
り台すを密嵌する上送り台ガイドｊは上送り台ガイド腕
ａと一体状とならず、軸杆ｇをもって軸着されているか
ら軽い部材であり、上送り歯ｉの押し上げに抵抗が少な
く軽く昇降することができると共に、二又部Ｃ１挿嵌部
ｄの両軸孔ｅ、ｅ、ｆの両者の内、一方の軸孔は直円で
なく僅かに楕円形をなすため軸動に当たり融通性があり
、昇降がスム−スにでき、而も該楕円の短径は他方の軸
孔の直円の径と等しいから、がたつきがなく、良好な昇
降をなす作用があるものである。Furthermore, in the device shown in Fig. 6 and below, when the stepped part or thick/thin part of the peeling fabric comes to the bottom position of the seam shape, the upper feed dog is automatically pushed up. The upper feed guide j that tightly fits the table is not integrated with the upper feed guide arm a, but is attached to the shaft with the shaft g, so it is a light member and has little resistance when pushing up the upper feed dog i. In addition to being able to move up and down easily, one of the two shaft holes e, e, and f of the insertion part d of the bifurcated part C1 is not a right circle but has a slightly oval shape, making it flexible in terms of shaft movement. The ellipse's short axis is equal to the diameter of the right circle of the other shaft hole, so there is no rattling and the shaft can be moved up and down smoothly. .
本発明は以上のような構成で、オーバーロックミシン従
来の前後差動送り機構を備え、尚且つ前送り歯自体を左
、右に分割し、前送り歯の左右差動送りを可能とし、前
送り歯の左側よりも右前送り歯の動き量を大きくも小さ
くもできるようにしたから、針板爪部付近の生地を強制
的に送り込むことができ、生地の逃げの発生を防ぎ、縫
い終わり時、生地の逃げが集積されることを皆無とし、
縫製品の品質向上、風合いを良好にさせ、更に生地の段
部又は部分的厚薄の変化等に当たり、上送り歯の昇降を
自動的に軽く容易に昇降することができ、而も昇降用の
軸着部も融通性があると共に、がたつき等がなく、スム
ースに昇降できるもので、縫製生地に損傷等を与えるこ
となく良好な縫製が可能である等効果大である。The present invention has the above-mentioned configuration, and is equipped with a front-rear differential feed mechanism conventionally used in overlock sewing machines.Furthermore, the front feed dog itself is divided into left and right parts to enable left and right differential feed of the front feed dog. Since the right front feed dog can move more or less than the left side of the feed dog, it is possible to forcibly feed the fabric near the throat plate claw, preventing the fabric from running out, and reducing the amount of movement at the end of sewing. , there is no accumulation of loose fabric,
In order to improve the quality and texture of sewn products, and to deal with stepped sections of fabric or partial changes in thickness, the upper feed dog can be automatically raised and lowered lightly and easily, and the shaft for raising and lowering can be used. The sewing part is also flexible and can be raised and lowered smoothly without wobbling or the like, and is very effective in that good sewing is possible without damaging the sewing fabric.
添付図面は本発明実施の一例を示すもので、第１図は右
前送り差動装置の側面図、第２図は右前送り差動装置の
平面図、第３図は右前送り軸リンク装置の部分図、第４
図は右前送りリンク装置部分の平面図、第５図は右前送
り差動装置の正面図、第６図は上送り歯昇降装置の斜視
図、第７図は上送り歯昇降装置の機構斜視図、第８図は
要部分解斜視図、第９図は上送り歯昇降装置をオーバー
ロックミシンに装着した側面図である。
■−クランクシャフト、２・・−ロッド、３−・一連結
ピン、４−・−送り軸腕、５−送り軸、６−右前送り軸
リンク、７・・一連結ピン、８−右前送り軸腕、１０−
・−右前送り腕、１１−右前送り軸、１２−右前送り腕
部、１３−右前送り台、１４−・一連結ピン、１５・−
・右前送りリンク、１６−・右側右前送り差動レバー、
１’Ｌ−・連結ピン、１８−・・右前送り差動レバー軸
、１９− 前送り台、２０−・・角駒、２１・−・前
送り歯、２２−後送り歯、２３−・針板爪部、２４−針
板、２５−・・後送り台、２６パ右前送り歯、２７−・
右前送り駒、２８−右前送り腕蓋、２９−・−左側右前
送り軸ブツシユ、３０−・右側右前送り軸ブツシユ、３
１−・−右前送り軸カラー、３２− ミシンフレーム、
ａ −上送り台ガイド腕、ｂ−上送り台、Ｃ−二又部、
ｄ・−挿嵌部、ｅ−軸孔、ｆ−・−軸孔、ｇ−軸杆、ｈ
・−押さえ軸ブツシユ、ｉ・・−上送り歯、ｊ−・−上
送り台ガイド、ｋ 一連結ピン、！−・−リンク、ｍ−
・・布押さえ、ｎ −押さえ腕。
出願人 ヤマトミシン製造株式会社
（ばか２名）
第３図
第４図
第５図
第６図
り
第７図
第８図The attached drawings show an example of the implementation of the present invention, in which Fig. 1 is a side view of the right forward feed differential, Fig. 2 is a plan view of the right forward feed differential, and Fig. 3 is a portion of the right forward feed shaft linkage. Figure, 4th
The figure is a plan view of the right front feed link device, Figure 5 is a front view of the right front feed differential, Figure 6 is a perspective view of the upper feed dog lifting device, and Figure 7 is a mechanical perspective view of the upper feed dog lifting device. , FIG. 8 is an exploded perspective view of the main parts, and FIG. 9 is a side view of the upper feed dog lifting device mounted on the overlock sewing machine. ■-Crankshaft, 2...-Rod, 3--Connection pin, 4--Feed shaft arm, 5-Feed shaft, 6-Right front feed shaft link, 7...Series connection pin, 8-Right front feed shaft Arm, 10-
・-Right forward feed arm, 11-Right forward feed shaft, 12-Right forward feed arm, 13-Right forward feed base, 14-・Series connecting pin, 15・-
・Right forward feed link, 16-・Right right forward feed differential lever,
1'L--Connection pin, 18--Right forward feed differential lever shaft, 19--Front feed stand, 20--Square piece, 21--Front feed dog, 22-Rear feed dog, 23--Needle Plate claw part, 24- Throat plate, 25-... Rear feed base, 26 pa right front feed dog, 27-...
Right forward feed piece, 28-Right forward feed arm cover, 29-・-Left right forward feed shaft bushing, 30-・Right right forward feed shaft button, 3
1-・-Right front feed shaft collar, 32- Sewing machine frame,
a-Upper feed guide arm, b-Upper feed, C-Forked part,
d - fitting part, e - shaft hole, f - shaft hole, g - shaft rod, h
・-Press shaft bush, i...-Upper feed dog, j--Upper feed guide, k One connection pin,! -・-Link, m-
...Cloth presser, n-presser arm. Applicant Yamato Sewing Machine Manufacturing Co., Ltd. (2 idiots) Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8
Claims (1)
を強制的に差動状に作動させると共に、上送り歯の上送
り台ガイドを中間で軸着することにより上送り歯の昇降
作動を自動的にさせることを特徴とするオーバーロック
ミシンの上下送り歯作動調整方法。 ２、前後差動送り手段を備えたオーバーロックミシンの
生地送りを司る下前送り歯を左右二部分に分割し、右側
右前送り作動レバーを昇降可能に設け、該右側右前送り
作動レバーの上下運動により、右前送り駒を右前送りリ
ンクを介して上下に移動させるようにした右前送り歯の
作動送り装置を併設し、右前送り歯の動き量を前送り歯
の動き量より大小何れにも調整できるようにすると共に
、揺動装置台を二分割して上送り台ガイド腕、上送り台
ガイドを設け、該腕の前端を二又部とし、前記上送り台
ガイドの基部を挿嵌部とし、又は該二又部並びに挿嵌部
を逆方側に存せしめ、該二又部並びに挿嵌部に亘って軸
孔を穿設し、該軸孔の内一方を眞円状とし、他方を楕円
形とし、該軸孔に亘って軸杆にて軸着することを特徴と
するオーバーロックミシンの上下送り歯作動調整装置。[Claims] 1. The right and left sides of the lower front feed dog of the overlock sewing machine are forcibly operated in a differential manner, and the upper feed bar guide of the upper feed dog is pivoted in the middle. A method for adjusting upper and lower feed dog operations of an overlock sewing machine, characterized by automatically raising and lowering the feed dog. 2. The lower front feed dog that controls fabric feeding in an overlock sewing machine equipped with a front-back differential feed means is divided into left and right parts, and the right-hand right front-feed operating lever is provided so as to be movable up and down, and the right-hand right front-feed operating lever can be moved up and down. The right front feed dog is equipped with a feed device that moves the right front feed piece up and down via the right front feed link, and the amount of movement of the right front feed dog can be adjusted to be larger or smaller than the amount of movement of the front feed dog. At the same time, the rocking device base is divided into two and an upper feed guide arm and an upper feed guide are provided, the front end of the arm is a forked part, and the base of the upper feed guide is an insertion part, Or, the forked part and the insertion part are made to exist on the opposite side, and a shaft hole is bored across the forked part and the insertion part, and one of the shaft holes is circular and the other is oval. What is claimed is: 1. An upper and lower feed dog operation adjustment device for an overlock sewing machine, characterized in that the upper and lower feed dog operation adjustment device has a shape and is pivoted across the shaft hole with a shaft rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13918288A JPH01308585A (en) | 1988-06-06 | 1988-06-06 | Upper and lower feed gear working regulating method for overlock machine, and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13918288A JPH01308585A (en) | 1988-06-06 | 1988-06-06 | Upper and lower feed gear working regulating method for overlock machine, and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01308585A true JPH01308585A (en) | 1989-12-13 |
Family
ID=15239471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13918288A Pending JPH01308585A (en) | 1988-06-06 | 1988-06-06 | Upper and lower feed gear working regulating method for overlock machine, and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01308585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01178882U (en) * | 1988-06-08 | 1989-12-21 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012522U (en) * | 1983-07-06 | 1985-01-28 | 神鋼電機株式会社 | Trough reinforcement structure in the material input section of a vibrating conveyor |
| JPS6314779U (en) * | 1986-07-15 | 1988-01-30 | ||
| JPS6335287A (en) * | 1986-07-30 | 1988-02-15 | ジューキ株式会社 | Differential belt feed apparatus of sewing machine |
-
1988
- 1988-06-06 JP JP13918288A patent/JPH01308585A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012522U (en) * | 1983-07-06 | 1985-01-28 | 神鋼電機株式会社 | Trough reinforcement structure in the material input section of a vibrating conveyor |
| JPS6314779U (en) * | 1986-07-15 | 1988-01-30 | ||
| JPS6335287A (en) * | 1986-07-30 | 1988-02-15 | ジューキ株式会社 | Differential belt feed apparatus of sewing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01178882U (en) * | 1988-06-08 | 1989-12-21 |
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