JP2006122284A - Feeding device of sewing machine - Google Patents
Feeding device of sewing machine Download PDFInfo
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- JP2006122284A JP2006122284A JP2004313435A JP2004313435A JP2006122284A JP 2006122284 A JP2006122284 A JP 2006122284A JP 2004313435 A JP2004313435 A JP 2004313435A JP 2004313435 A JP2004313435 A JP 2004313435A JP 2006122284 A JP2006122284 A JP 2006122284A
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Abstract
Description
本発明は、針振りに前進送り（正送り）と後進送り（逆送り）を組み合わせた複数のスーパー模様を縫製するときの布送り発生用カム（スーパー送りカム）を１枚だけ設けるようにしたものに関する。 In the present invention, only one cloth feed generation cam (super feed cam) is provided when sewing a plurality of super patterns combining forward feed (forward feed) and reverse feed (reverse feed) with needle swing. About things.
従来、複数枚の実用模様用の針振りカムと複数枚の送りカムとを備えた機械駆動式ジグザグミシンにおいては、模様選択ダイヤルを手動操作で回転させて所望の模様を選択することで、選択した模様の為の針振りカムとこれに相応しい送りカムに夫々接触子が接触するようになり、針振り動作と布送り動作により所望の実用模様が加工布に形成される。 Conventionally, in a mechanically driven zigzag sewing machine equipped with a plurality of needle swing cams for practical patterns and a plurality of feed cams, a pattern can be selected by manually rotating the pattern selection dial. The contact comes into contact with the needle swing cam for the pattern and the feed cam corresponding to this, and a desired practical pattern is formed on the work cloth by the needle swing operation and the cloth feed operation.
ところで、最近、前進送りの途中に後進送りをサイクリックに実行することで、スーパー模様を縫製できるようにしたミシンが各種提案されている。 By the way, recently, various sewing machines have been proposed in which a super-pattern can be sewn by cyclically executing a reverse feed in the middle of a forward feed.
例えば、特許文献１のミシンの送り発生装置は、直線模様及びジグザグ模様等の実用模様の送り量を制御する複数枚のジグザグ送りカムと、「スモッキング」等のスーパー模様の送り量を制御する２枚のスーパー送りカムが回転軸方向に積層載置され、その何れかの送りカムに接触する１つの送り従動子と、模様選択ダイヤルの操作に応じて送りカムを切換える毎にその送り従動子を送りカムからリリースさせる送りリリース機構を設け、模様選択ダイヤルで選択した実用模様又はスーパー模様を縫製できるようにしてある。
前述した特許文献１に記載のミシンの送り発生装置においては、スーパー模様を縫製する為に２枚のスーパー送りカムを設けてあるので、これら複数枚のスーパー送りカムを配置する為の大きなスペースを必要とするだけでなく、送りリリース機構を設けるスペースも必要となり、送り発生装置が大型化すること、その送りリリース機構を必要とするため、送り発生装置が複雑化し、コストが高くなること、等の問題がある。 In the sewing machine feed generator described in Patent Document 1 described above, two super feed cams are provided to sew a super pattern, so that a large space for arranging the plurality of super feed cams is provided. Not only is it necessary, but also a space to provide a feed release mechanism is required, the feed generator is upsized, and the feed release mechanism is required, which complicates the feed generator and increases costs. There is a problem.
更に、縫製可能な模様数が多くなるのに伴って、模様選択ダイヤルに連動してリリース機構を作動させたり送り従動子を移動させる模様選択カムの分割数、つまり模様を選択する為のカム数が増加して、模様選択カムの圧力角（カムの勾配）が大きくなり、模様選択ダイヤルを手動操作するときの操作荷重が重くなって操作性に劣ることになる。模様選択ダイヤルの操作性を重視する場合には、縫製可能な模様数を多くすることができないという問題がある。 Furthermore, as the number of patterns that can be sewn increases, the number of pattern selection cams that actuate the release mechanism and move the feed follower in conjunction with the pattern selection dial, that is, the number of cams for selecting a pattern. Increases, the pressure angle (cam gradient) of the pattern selection cam increases, and the operation load when the pattern selection dial is manually operated becomes heavy, resulting in poor operability. When emphasizing the operability of the pattern selection dial, there is a problem that the number of patterns that can be sewn cannot be increased.
そこで、スーパー模様を選択する為に別体の操作ダイヤルを設け、模様選択ダイヤルによる模様選択数を減らすことで模様選択ダイヤルの操作性を向上させる場合でも、操作ダイヤルに連動する送りリリース機構が必ず必要になるため、操作ダイヤルの操作荷重が大きくなることは避けられず、操作ダイヤルの操作性が低下するという問題が起こる。 Therefore, even if a separate operation dial is provided to select the super pattern and the operability of the pattern selection dial is improved by reducing the number of pattern selections by the pattern selection dial, the feed release mechanism linked to the operation dial is always provided. Therefore, an increase in the operation load of the operation dial is unavoidable, resulting in a problem that the operability of the operation dial is lowered.
請求項１に係るミシンの送り発生装置は、複数の実用模様と複数のスーパー模様を択一的に選択して縫製可能なミシンの送り発生装置において、スーパー模様を縫製する為にスーパー模様用の布送りを発生させる単一のスーパー送りカムと、スーパー送りカムに接触する複数の送り接触子であって、布送りの前進と後進の組合せのパターンが異なる複数のスーパー模様を発生させるために、スーパー送りカムによる送り接触子の揺動位相が所定量だけずれるように配置した複数の送り接触子と、複数の送り接触子のうちの１つがスーパー送りカムに接触するように切換える接触子切換え機構とを備えたものである。 The sewing machine feed generator according to claim 1 is a sewing machine feed generator capable of selectively selecting a plurality of practical patterns and a plurality of super patterns, and sewing the super pattern. In order to generate a plurality of super patterns having a single super feed cam that generates a cloth feed and a plurality of feed contacts that come into contact with the super feed cam, the patterns of the forward and reverse combinations of the cloth feed differ. A plurality of feed contacts arranged so that the oscillating phase of the feed contact by the super feed cam is shifted by a predetermined amount, and a contact switching mechanism for switching so that one of the feed contacts contacts the super feed cam. It is equipped with.
複数の送り接触子を切換えて何れか１つを単一のスーパー送りカムに接触させる場合、接触子の揺動位相が所定量だけずれるので、スーパー送りカムにより複数の送り接触子を介して発生するスーパー模様用の布送りに変化を持たせることができる。即ち、前進送りにサイクリックに含まれる後進送りのタイミングを適宜ずらせることができる。 When switching multiple feed contacts and bringing one of them into contact with a single super feed cam, the swing phase of the contact is shifted by a predetermined amount, so it is generated via the multiple feed contacts by the super feed cam. The cloth feed for the super pattern can be changed. In other words, the reverse feed timing included in the cyclic in the forward feed can be appropriately shifted.
このように、送り接触子の揺動位相の所定量のずれにより後進送りが発生するタイミングをずらせることができるので、単一のスーパー送りカムを用いて、布送りの前進と後進の組合せのパターンが異なる複数のスーパー模様の縫製が可能になる。 In this way, the timing at which reverse feed occurs due to a predetermined amount of deviation in the swing phase of the feed contact can be shifted, so a single super feed cam can be used to combine the forward and reverse cloth feeds. A plurality of super patterns with different patterns can be sewn.
請求項２に係るミシンの送り発生装置は、請求項１の発明において、前記接触子切換え機構を操作するための切換え操作手段を有するものである。 According to a second aspect of the present invention, there is provided a sewing machine feed generating apparatus according to the first aspect of the present invention, further comprising a switching operation means for operating the contact switching mechanism.
請求項３に係るミシンの送り発生装置は、請求項２の発明において、前記切換え操作手段は、複数の模様を択一的に選択する模様選択ダイヤルの回動中心軸と同心軸上に配置されたものである。 According to a third aspect of the present invention, there is provided the sewing machine feed generating device according to the second aspect of the invention, wherein the switching operation means is disposed on a concentric axis with a central axis of rotation of a pattern selection dial that selectively selects a plurality of patterns. It is a thing.
請求項４に係るミシンの送り発生装置は、請求項３の発明において、前記切換え操作手段は複数の実用模様の布送り量を設定する送りダイヤルと一体的に構成され、その送りダイヤルを布送り量の設定範囲以上に回動させたときにスーパー模様が選択されるものである。 According to a fourth aspect of the present invention, there is provided the sewing machine feed generating device according to the third aspect of the invention, wherein the switching operation means is integrally formed with a feed dial for setting a plurality of practical patterns of cloth feed amounts. The super pattern is selected when it is rotated beyond the set range of the amount.
請求項５に係るミシンの送り発生装置は、請求項４の発明において、前記接触子切換え機構は複数の送り接触子を択一的にスーパー送りカムに接触させる複数のカム部を個別に設けた切換え制御カムを備え、実用模様の布送り量を制御する送りカムを切換え制御カムに一体的に設けたものである。 According to a fifth aspect of the present invention, there is provided the sewing machine feed generating device according to the fourth aspect of the invention, wherein the contactor switching mechanism is provided with a plurality of cam portions that selectively contact the plurality of feed contacts with the super feed cam. A switching control cam is provided, and a feeding cam for controlling the cloth feed amount of a practical pattern is provided integrally with the switching control cam.
請求項１の発明によれば、複数の実用模様と複数のスーパー模様を択一的に選択して縫製可能なミシンの送り発生装置において、単一のスーパー送りカムと、複数の送り接触子と、接触子切換え機構を設けたので、前進送りにサイクリックに含まれる後進送りのタイミングを適宜ずらせることができる。それ故、単一のスーパー送りカムと複数の送り接触子を用いて、布送りの前進と後進の組合せのパターンが異なる複数のスーパー模様を縫製することができる。 According to the first aspect of the present invention, in a feed generating device for a sewing machine that can selectively sew a plurality of practical patterns and a plurality of super patterns, a single super feed cam, a plurality of feed contacts, Since the contact switching mechanism is provided, the forward feed timing included in the cyclic can be appropriately shifted in the forward feed. Therefore, using a single super feed cam and a plurality of feed contacts, it is possible to sew a plurality of super patterns having different combinations of forward and reverse cloth feed patterns.
複数のスーパー模様の布送り発生の為に、単一のスーパー送りカムを設けるだけであって、送り接触子の為の送りリリース機構を不要にできるため、スペース的に有利になり、送り発生装置の小型化、軽量化を実現することができる。 Only a single super feed cam is provided to generate a plurality of super-patterned cloth feeds, and a feed release mechanism for the feed contact can be dispensed with. Can be reduced in size and weight.
請求項２の発明によれば、前記接触子切換え機構を操作するための切換え操作手段を有するので、切換え操作手段により複数の送り接触子を切換えてスーパー模様を選択することができる。しかも、切換え操作手段は複数の送り接触子を切換えるだけであって、余分な送りリリース機構の作動を伴わないので、切換え操作手段の操作荷重を小さくでき、その操作性を向上させることができる。その他請求項１と同様の効果を奏する。 According to the invention of claim 2, since the switching operation means for operating the contact switching mechanism is provided, a super pattern can be selected by switching a plurality of feeding contacts by the switching operation means. In addition, since the switching operation means only switches a plurality of feed contacts and does not involve an extra operation of the feed release mechanism, the operation load of the switching operation means can be reduced and the operability can be improved. Other effects similar to those of the first aspect are obtained.
請求項３の発明によれば、前記切換え操作手段は、複数の模様を択一的に選択する模様選択ダイヤルの回動中心軸と同心軸上に配置されたので、切換え操作手段と模様選択ダイヤルを実用的に且つコンパクトに配置できる上、模様選択操作と布送りの切換え操作の操作性を高めることができる。その他請求項２と同様の効果を奏する。 According to the invention of claim 3, since the switching operation means is arranged on the concentric axis with the central axis of rotation of the pattern selection dial for selectively selecting a plurality of patterns, the switching operation means and the pattern selection dial Can be arranged practically and compactly, and the operability of the pattern selection operation and the cloth feed switching operation can be improved. Other effects similar to those of the second aspect are achieved.
請求項４の発明によれば、前記切換え操作手段は複数の実用模様の布送り量を設定する送りダイヤルと一体的に構成され、その送りダイヤルを布送り量の設定範囲以上に回動させたときにスーパー模様が選択されるので、実用模様の布送りとスーパー模様の布送りを１つの送りダイヤルで選択でき、布送り選択の操作性を高めることができる。 According to a fourth aspect of the present invention, the switching operation means is formed integrally with a feed dial for setting a plurality of practical patterns of cloth feed amounts, and the feed dial is rotated beyond a set range of the cloth feed amounts. Since the super pattern is sometimes selected, the cloth feed for the practical pattern and the cloth feed for the super pattern can be selected with one feed dial, and the operability of the cloth feed selection can be improved.
更に、実用模様の布送り量設定とスーパー模様の布送り選択とを、混同することなく、送りダイヤルの操作量により確実に区別することができる。その他請求項３と同様の効果を奏する。 Furthermore, it is possible to reliably distinguish the setting of the feed amount of the practical pattern and the selection of the feed amount of the super pattern by the operation amount of the feed dial without confusion. Other effects similar to those of the third aspect are achieved.
請求項５の発明によれば、前記接触子切換え機構は複数の送り接触子を択一的にスーパー送りカムに接触させる複数のカム部を個別に設けた切換え制御カムを備え、実用模様の布送り量を制御する送りカムを切換え制御カムに一体的に設けたので、スーパー送りカムに接触させる送り接触子を切換え制御カムのカム部で個別に且つ容易に切換えることができる。更に、実用模様の為の送りカムを別体として設けなくてよいため、スペース的に有利であり、しかも部品点数を削減でき、組付け面やコスト面の優位性を高めることができる。その他請求項４と同様の効果を奏する。 According to a fifth aspect of the present invention, the contactor switching mechanism includes a switching control cam provided with a plurality of cam portions that individually contact the plurality of feed contacts with the super feed cam, and has a practically patterned cloth. Since the feed cam for controlling the feed amount is provided integrally with the switching control cam, the feed contact to be brought into contact with the super feed cam can be switched individually and easily at the cam portion of the switching control cam. Furthermore, since it is not necessary to provide a feeding cam for a practical pattern as a separate body, it is advantageous in terms of space, and the number of parts can be reduced, and the superiority in assembling and cost can be improved. Other effects similar to those of the fourth aspect are achieved.
本実施形態におけるミシンの送り発生装置は、１枚（単一）のスーパー送りカムを設け、このスーパー送りカムに接触可能な２つの送り接触子を択一的に切換えてスーパー送りカムに接触させるようにし、これら送り接触子の揺動位相が所定量だけずれるようにしてある。 The sewing machine feed generator in the present embodiment is provided with one (single) super feed cam, and selectively switches two feed contacts that can come into contact with the super feed cam to contact the super feed cam. Thus, the oscillation phase of these feed contacts is shifted by a predetermined amount.
図１，図２に示すように、ジグザグミシンＭにおいては、ベッド部１の右端部に脚柱部２が立設され、この脚柱部２の上端から左方に延びるアーム部３はベッド部１の上方に対向するように水平に配設され、このアーム部３の頭部４には縫針５を着脱可能に装着された針棒６と押え足７を装着した押え棒（図示略）とが上下方向向きに配設されている。針棒６は、上端部がダイキャスト製の機枠に枢支ピン８を介して揺動自在に枢支された針棒支持部材９に、上下動可能に且つ揺動可能に支持されている。 As shown in FIGS. 1 and 2, in the zigzag sewing machine M, a leg column 2 is erected at the right end of the bed 1, and the arm 3 that extends leftward from the upper end of the leg 2 is a bed unit. 1, a needle bar 6 on which a sewing needle 5 is detachably attached to a head 4 of the arm portion 3 and a presser bar (not shown) on which a presser foot 7 is attached. Are arranged in the vertical direction. The needle bar 6 is supported by a needle bar support member 9 whose upper end is pivotally supported by a die-cast machine frame via a pivotal support pin 8 so as to be vertically movable and swingable. .
前記アーム部３内には、機枠に回転可能に支持された主軸１０が水平に配設され、図示外のミシンモータで所定の回転方向に回転駆動されるようになっている。そして、針棒６は、主軸１０に連結された針棒上下動機構（図示略）により針棒抱き１１を介して上下駆動されるとともに、後述する針振り機構に連結された揺動用連杆１２を介して針棒支持部材９が揺動するのと同時に揺動可能になっている。 A main shaft 10 rotatably supported on the machine frame is horizontally disposed in the arm portion 3 and is driven to rotate in a predetermined rotation direction by a sewing machine motor (not shown). The needle bar 6 is driven up and down via a needle bar holder 11 by a needle bar vertical movement mechanism (not shown) connected to the main shaft 10 and is also connected to a swinging linkage 12 which will be described later. The needle bar support member 9 can swing at the same time as the needle bar support member 9 swings.
次に、前記脚柱部２に設けられた模様選択装置ＭＳについて説明する。この模様選択装置ＭＳは、図示を省略するが、複数枚の針振りカムを一体的に積層した針振りカム群と、１つの針振り接触子を針振りカム群の何れかの針振りカムに対応させるようにその積層方向へ移動させる針振り接触子移動機構（所謂、針振りリリース機構）と、針振り接触子の揺動を針棒６の揺動に変換する針振り機構と、後述する送り接触子５５，４３，４４の揺動により布送りを発生させる送り発生装置１３と、その送り発生装置１３により発生した布送り量を送り調節器で実現させる送り歯駆動機構１４等を有している。 Next, the pattern selection device MS provided in the pedestal portion 2 will be described. Although not shown in the drawing, the pattern selection device MS has a needle swing cam group in which a plurality of needle swing cams are integrally laminated, and one needle swing contact is attached to any needle swing cam of the needle swing cam group. A needle swing contact moving mechanism (so-called needle swing release mechanism) that moves in the stacking direction so as to correspond, a needle swing mechanism that converts the swing of the needle swing contact into the swing of the needle bar 6, and will be described later. A feed generator 13 that generates a cloth feed by swinging the feed contacts 55, 43, and 44, and a feed dog drive mechanism 14 that realizes a cloth feed amount generated by the feed generator 13 with a feed adjuster. ing.
先ず、ベッド部１に設けられた送り歯駆動機構１４を、先に説明しておく。図３，図４に示すように、縫針５の下側に対応するベッド部１の内部において、幅広の水平送り作動体２０がその下端部において左右方向向きの枢支軸２１により水平揺動可能に枢支され、その水平送り作動体２０の上端部に、送り歯２２を固着した送り歯支持体２３が枢支ピン２４で連結されている。但し、送り歯支持体２３の後端部は、図示外の送り歯上下動機構の上下作動部材２５に連結され、送り歯支持体２３を介して送り歯２２が上下動するようになっている。 First, the feed dog drive mechanism 14 provided in the bed 1 will be described first. As shown in FIGS. 3 and 4, in the bed portion 1 corresponding to the lower side of the sewing needle 5, the wide horizontal feed actuating body 20 can be horizontally swung by the pivot shaft 21 in the left-right direction at the lower end portion thereof. A feed dog support 23 having a feed dog 22 fixed thereto is connected to a top end of the horizontal feed actuator 20 by a pivot pin 24. However, the rear end portion of the feed dog support 23 is connected to a vertical operation member 25 of a feed dog vertical movement mechanism (not shown), and the feed dog 22 moves up and down via the feed dog support 23. .
水平送り作動体２０の側壁に、側面視略コ字状の水平送り体２６の前端部が枢支ピン２７で上下揺動可能に支持されている。水平送り体２６の内部に、主軸１０と同期して回転駆動される送り軸２８に固着された三角状の水平送りカム２９が内嵌状に設けられている。一方、送り軸２８の直ぐ上側に左右方向向きの回動軸３０が配設され、その回動軸３０の左端部に送り調節器３１が固着され、その送り調節器３１の内部に形成された湾曲状の送り調節穴に、水平送り体２６に固着された送り調節ピン３２の先端部が嵌入している。 A front end portion of a substantially U-shaped horizontal feed body 26 in a side view is supported on the side wall of the horizontal feed operating body 20 by a pivot pin 27 so as to be able to swing up and down. Inside the horizontal feed body 26, a triangular horizontal feed cam 29 fixed to a feed shaft 28 that is rotationally driven in synchronization with the main shaft 10 is provided in an internal fit. On the other hand, a rotation shaft 30 in the left-right direction is disposed immediately above the feed shaft 28, and a feed adjuster 31 is fixed to the left end portion of the turn shaft 30, and is formed inside the feed adjuster 31. The distal end portion of the feed adjusting pin 32 fixed to the horizontal feeding body 26 is fitted into the curved feed adjusting hole.
回動軸３０には、送り伝達レバー３３の後端部が連結され、その送り伝達レバー３３の前端部に、後述する送り発生装置１３から下方に延びる送り発生板５２の下端部が連結されている。それ故、送り発生板５２の上下位置が上下動範囲の中段位置で、送り調節器３１の傾きが図４に実線で示す基準姿勢の場合、送り調節器３１の傾きは送り調節ピン３２の移動軌跡と合致するため、水平送り体２６及び水平送り作動体２０を介して送り歯２２に水平方向の送りが発生ぜず、布送り量は「零」である。 A rear end portion of the feed transmission lever 33 is connected to the rotation shaft 30, and a lower end portion of a feed generation plate 52 extending downward from a feed generation device 13 described later is connected to the front end portion of the feed transmission lever 33. Yes. Therefore, when the vertical position of the feed generating plate 52 is the middle position of the vertical movement range and the tilt of the feed adjuster 31 is in the reference posture indicated by the solid line in FIG. Since it coincides with the locus, the feed dog 22 does not feed in the horizontal direction via the horizontal feed body 26 and the horizontal feed actuating body 20, and the cloth feed amount is “zero”.
しかし、送り発生板５２が中段位置よりも下方に移動した場合、送り調節器３１の傾きが図４に２点鎖線で示す後進送り姿勢（逆送り姿勢）に切換えられるため、送り歯２２により加工布が後進方向に移動する。送り発生板５２が中段位置よりも上方に移動した場合、送り調節器３１の傾きが基準姿勢に対して後進送り姿勢と反対の前進送り姿勢（正送り姿勢）に切換えられるため、送り歯２２により加工布が前進方向に移動する。 However, when the feed generating plate 52 moves downward from the middle position, the inclination of the feed adjuster 31 is switched to the reverse feed posture (reverse feed posture) shown by the two-dot chain line in FIG. The cloth moves in the reverse direction. When the feed generating plate 52 moves upward from the middle position, the inclination of the feed adjuster 31 is switched to the forward feed posture (forward feed posture) opposite to the reverse feed posture with respect to the reference posture. The work cloth moves in the forward direction.
次に、脚柱部２に配設された送り発生装置１３について説明する。図５に示すように、この送り発生装置１３は、ベースフレーム４０と、このベースフレーム４０上に設けられ、実用模様の為の布送りを発生させる実用送り発生機構４１と、スーパー模様の布送りを発生させるスーパー送りカム４２と、そのスーパー送りカム４２に択一的に接触する第１，第２スーパー送り接触子４３，４４と、これら第１，第２スーパーの送り接触子４３，４４のうちの１つがスーパー送りカム４２に接触するように切換える接触子切換え機構４５と、スーパー模様の為の布送りを発生させるスーパー送り発生機構４８等を有している。 Next, the feed generator 13 disposed in the pedestal 2 will be described. As shown in FIG. 5, the feed generating device 13 includes a base frame 40, a practical feed generating mechanism 41 that is provided on the base frame 40 and generates a fabric feed for a practical pattern, and a super pattern cloth feed. Of the super feed cam 42 for generating the first and second super feed contacts 43 and 44 that selectively contact the super feed cam 42, and the first and second super feed contacts 43 and 44. A contact switching mechanism 45 that switches so that one of them contacts the super feed cam 42, a super feed generation mechanism 48 that generates cloth feed for the super pattern, and the like are provided.
ベースフレーム４０は、略矩形状の板部材からなり、脚柱部２内において縦向きに配設され、複数箇所にて機枠に固着されている。但し、そのベースフレーム４０には、楕円形や矩形状等、各種の形状の第１〜第４開口部４０ａ〜４０ｄが予め形成されている。 The base frame 40 is made of a substantially rectangular plate member, is disposed vertically in the pedestal column portion 2, and is fixed to the machine frame at a plurality of locations. However, in the base frame 40, first to fourth openings 40a to 40d having various shapes such as an oval shape and a rectangular shape are formed in advance.
ここで、ベースフレーム４０に、選択カム軸１５により一体的に設けられた模様選択カム１６と、模様選択ダイヤル１７と、切換え制御カム３５と、送りダイヤル３６について簡単に説明しておく。模様選択ダイヤル１７の円形正面部には、図１，図１９に示すように、縫製可能な複数（例えば、１３種類）の実用模様が表示され、送りダイヤル３６の外周部の環状正面部には、図１，図１９に示すように、実用模様の為の布送り量「０、Ｆ、１〜４」と、第１スーパー模様を選択する「ＳＳ１」と、第２スーパー模様を選択する「ＳＳ２」が表示されている。 Here, the pattern selection cam 16, the pattern selection dial 17, the switching control cam 35, and the feed dial 36 that are integrally provided on the base frame 40 by the selection cam shaft 15 will be briefly described. As shown in FIGS. 1 and 19, a plurality of (for example, 13 types) practical patterns that can be sewn are displayed on the circular front portion of the pattern selection dial 17, and on the annular front portion of the outer peripheral portion of the feed dial 36. As shown in FIGS. 1 and 19, the cloth feed amount “0, F, 1 to 4” for the practical pattern, “SS1” for selecting the first super pattern, and “2” for selecting the second super pattern “ SS2 "is displayed.
図９に示すように、ベースフレーム４０の上端近傍部の前側に、ベースフレーム４０に形成した円筒状の枢支部４０ｅに前後方向向きの選択カム軸１５が回転可能に枢支され、選択カム軸１５はその前側に固定した第１止め輪３７ａと、後端部の第１固定ピン１８ａとで模様選択カム１６を挟持するようにベースフレーム４０に軸方向移動不能に装着されている。それ故、模様選択カム１６は第１固定ピン１８ａにより選択カム軸１５と一体的に回転できるようになっている。 As shown in FIG. 9, on the front side of the vicinity of the upper end of the base frame 40, a selection cam shaft 15 oriented in the front-rear direction is rotatably supported by a cylindrical pivot portion 40e formed on the base frame 40. 15 is attached to the base frame 40 so as not to move in the axial direction so that the pattern selection cam 16 is held between the first retaining ring 37a fixed to the front side and the first fixing pin 18a at the rear end. Therefore, the pattern selection cam 16 can be rotated integrally with the selection cam shaft 15 by the first fixing pin 18a.
ベースフレーム４０の枢支部４０ｅに切換え制御カム３５が回転可能に枢支され、送りダイヤル３６は選択カム軸１５に固着した２つの第１，第２止め輪３７ａ，３７ｂで、選択カム軸１５に軸方向移動不能に且つ回転可能に装着されている。即ち、切換え制御カム３５はベースフレーム４０と第１止め輪３７ａにより、送りダイヤル３６は第１，第２止め輪３７ａ，３７ｂにより、選択カム軸１５に軸方向移動不能に且つ回転可能であり、切換え制御カム３５は送りダイヤル３６に形成された凹凸状の係合部（図示略）を介して送りダイヤル３６と一体的に回転可能になっている。 A switching control cam 35 is rotatably supported on a pivotal support portion 40e of the base frame 40, and a feed dial 36 is provided with two first and second retaining rings 37a and 37b fixed to the selection cam shaft 15, and is attached to the selection cam shaft 15. It is mounted so that it cannot move in the axial direction and is rotatable. In other words, the switching control cam 35 is non-movable in the axial direction with respect to the selection cam shaft 15 and can be rotated by the base frame 40 and the first retaining ring 37a, and the feed dial 36 by the first and second retaining rings 37a and 37b. The switching control cam 35 is rotatable integrally with the feed dial 36 via a concave and convex engaging portion (not shown) formed on the feed dial 36.
模様選択ダイヤル１７は、選択カム軸１５の前端部を嵌入させて、選択カム軸１５の第２固定ピン１８ｂに係合している。それ故、送りダイヤル３６の回転操作により、模様選択ダイヤル１７に何ら影響を及ぼすことなく、切換え制御カム３５だけを直接に回転させて、アーム部３に記載した三角形の選択マーク３ａに合致させた実用模様の布送り量と、第１スーパー模様（ＳＳ１）の布送り、第２スーパー模様（ＳＳ２）の布送りを任意に選択できるようになっている。 The pattern selection dial 17 is engaged with the second fixed pin 18 b of the selection cam shaft 15 by inserting the front end portion of the selection cam shaft 15. Therefore, the rotation operation of the feed dial 36 does not affect the pattern selection dial 17, and only the switching control cam 35 is directly rotated to match the triangular selection mark 3 a described on the arm portion 3. The cloth feed amount of the practical pattern, the cloth feed of the first super pattern (SS1), and the cloth feed of the second super pattern (SS2) can be arbitrarily selected.
模様選択ダイヤル１７の回転操作により、送りダイヤル３６に何ら影響を及ぼすことなく、選択カム軸１５を介して模様選択カム１６だけを回転させて、アーム部３に記載した選択マーク３ａに合致させた実用模様を任意に選択できるようになっている。 By rotating the pattern selection dial 17, only the pattern selection cam 16 is rotated via the selection cam shaft 15 without affecting the feed dial 36 so as to match the selection mark 3 a described on the arm portion 3. Practical patterns can be selected arbitrarily.
次に、実用送り発生機構４１について説明する。図６，図１３−１に示すように、切換え制御カム３５の裏面側に、略湾曲状の実用送りカム３５ａが凹設されている。ここで、その実用送りカム３５ａには、外周側の前進送りの為の正送りカム面３５ｂと、内周側の後進送りの為の逆送りカム面３５ｃとが夫々形成されている。切換え制御カム３５の左側近傍部に正面視三角形状の実用送りレバー５３の基端部が枢支ピン５４によりベースフレーム４０に回動可能に枢支されている。 Next, the practical feed generating mechanism 41 will be described. As shown in FIGS. 6 and 13-1, a substantially curved practical feed cam 35 a is recessed on the back side of the switching control cam 35. Here, a forward feed cam surface 35b for forward feed on the outer peripheral side and a reverse feed cam surface 35c for reverse feed on the inner peripheral side are formed on the practical feed cam 35a. A proximal end portion of a practical feed lever 53 having a triangular shape in front view is pivotally supported on the base frame 40 by a pivot pin 54 in the vicinity of the left side of the switching control cam 35.
切換え制御カム３５に隠れる実用送りレバー５３の右側端部に、実用送りカム３５ａに臨むように実用送り接触子５５が前向きに固着され、実用送りレバー５３の左側端部には、縦向きに配設された送り発生板５２の上端部が連結ピン５６で回動可能に連結されている。ここで、送り発生板５２は、引っ張りコイルバネ５１（図７参照）により常に上方に弾性付勢されており、実用送り接触子５５が常に正送りカム面３５ｂに接触するようになっている。 A practical feed contact 55 is fixed to the right end of the practical feed lever 53 hidden by the switching control cam 35 so as to face the practical feed cam 35a. The practical feed lever 53 is vertically arranged at the left end of the practical feed lever 53. An upper end portion of the provided feed generating plate 52 is connected by a connecting pin 56 so as to be rotatable. Here, the feed generating plate 52 is always elastically biased upward by a tension coil spring 51 (see FIG. 7), so that the practical feed contact 55 is always in contact with the forward feed cam surface 35b.
前述したように、作業者が実用模様の布送り量を変更する為に、送りダイヤル３６を回動操作すると切換え制御カム３５が一体的に回転駆動され、実用送り接触子５５の正送りカム面３５ｂに対する接触位置が変更され、それに伴って実用送りレバー５３が時計回り又は反時計回りに回動して送り発生板５２の高さ位置が変更され、前述したように、前進送り量が変更される。 As described above, when the operator rotates the feed dial 36 in order to change the cloth feed amount of the practical pattern, the switching control cam 35 is integrally rotated, and the forward feed cam surface of the practical feed contactor 55 is rotated. The contact position with respect to 35b is changed, and accordingly, the practical feed lever 53 is rotated clockwise or counterclockwise to change the height position of the feed generating plate 52, and the forward feed amount is changed as described above. The
縫製終了時の返し縫いに際しては、引っ張りコイルバネ５１のバネ力に抗して送り発生板５２が強制的に下方に下げられるため、実用送り接触子５５が逆送りカム面３５ｃに強制的に接触するようになり、後進送りに切換えられて返し縫いが可能になる。但し、実用送りカム３５ａの両端部に、後述するスーパー模様の為の布送りを発生させる際に、実用送り接触子５５を正送りカム面３５ｂや逆送りカム面３５ｃに接触させないで退避させる退避領域３５ｄ，３５ｅが夫々形成されている。 At the time of reverse stitching at the end of sewing, the feed generating plate 52 is forcibly lowered downward against the spring force of the tension coil spring 51, so that the practical feed contact 55 is forced to contact the reverse feed cam surface 35c. And reverse feed stitching becomes possible by switching to reverse feed. However, when the cloth feed for the super pattern described later is generated at both ends of the practical feed cam 35a, the practical feed contact 55 is retracted without being brought into contact with the forward feed cam surface 35b or the reverse feed cam surface 35c. Regions 35d and 35e are formed, respectively.
次に、スーパー送りカム４２について説明する。図５，図８，図１０に示すように、スーパー送りカム４２は、ベースフレーム４０の直ぐ後側において枢支軸５８によりベースフレーム４０と平行に回転可能に枢支され、後側にウォームホイール５９が一体的に設けられている。 Next, the super feed cam 42 will be described. As shown in FIGS. 5, 8, and 10, the super feed cam 42 is pivotally supported by the pivot shaft 58 so as to be rotatable in parallel with the base frame 40 on the immediate rear side of the base frame 40, and the worm wheel on the rear side. 59 is provided integrally.
スーパー送りカム４２と一体的に設けられたウォームホイール５９は、タイミングベルト６０（図２参照）により主軸１０の回転が伝達されるウォームギヤ軸６１に設けられたウォームギヤ６２に噛合されており、主軸１０が回転するのと同時に、そのウォームギヤ６２によりウォームホイール５９、つまりスーパー送りカム４２が針棒６の上下動と調時して時計回りに回転駆動されるようになっている。 The worm wheel 59 provided integrally with the super feed cam 42 is meshed with a worm gear 62 provided on a worm gear shaft 61 to which the rotation of the main shaft 10 is transmitted by a timing belt 60 (see FIG. 2). At the same time, the worm gear 62 rotates the worm wheel 59, that is, the super feed cam 42, in time with the vertical movement of the needle bar 6.
スーパー送りカム４２は、図１２に示すように、９０°おきに４つの後進用カム面４２ａが形成され、これら後進用カム面４２ａの間に前進用カム面４２ｂが夫々形成されている。スーパー送りカム４２が主軸１０の回転に同期して回転するので、後述する第１，第２スーパー送り接触子４３，４４が、前進用カム面４２ｂに接触すると、２針分の前進送りが実行され、後進用カム面４２ａに乗り上げると、１針分の後進送りが実行されるようになる。 As shown in FIG. 12, the super feed cam 42 has four reverse cam surfaces 42a formed every 90 °, and forward cam surfaces 42b are formed between the reverse cam surfaces 42a. Since the super feed cam 42 rotates in synchronization with the rotation of the main shaft 10, when the first and second super feed contacts 43 and 44 described later come into contact with the forward cam surface 42b, the forward feed for two stitches is executed. Then, when riding on the reverse cam surface 42a, reverse feed for one stitch is executed.
次に、第１，第２スーパー送り接触子４３，４４を択一的にスーパー送りカム４２に接触させるように切換える接触子切換え機構４５について説明する。この接触子切換え機構４５は、第１スーパー模様（図１９参照）を縫製できるように、第１スーパー送り接触子４３をスーパー送りカム４２に接触させる第１切換え機構４６と、第２スーパー模様（図１９参照）を縫製できるように、第２スーパー送り接触子４４をスーパー送りカム４２に接触させる第２切換え機構４７とを有している。 Next, a contact switching mechanism 45 that switches the first and second super feed contacts 43 and 44 to selectively contact the super feed cam 42 will be described. The contact switching mechanism 45 includes a first switching mechanism 46 for bringing the first super feed contact 43 into contact with the super feed cam 42 and a second super pattern (see FIG. 19) so that the first super pattern (see FIG. 19) can be sewn. 19), a second switching mechanism 47 for bringing the second super feed contact 44 into contact with the super feed cam 42 is provided.
先ず、第１切換え機構４６について説明する。図５，図１０に示すように、ベースフレーム４０の高さ方向中段部に、ベースフレームの第１開口部４０ａを介して前後方向向きの連結軸６５が配設され、ベースフレーム４０の前側において、左右方向向きの第１カム検出レバー６６の右端近傍部が連結軸６５の前方部分に回動可能に枢支されている。 First, the first switching mechanism 46 will be described. As shown in FIGS. 5 and 10, a connecting shaft 65 facing in the front-rear direction is disposed in the middle step in the height direction of the base frame 40 via the first opening 40 a of the base frame, and on the front side of the base frame 40. The vicinity of the right end of the first cam detection lever 66 in the left-right direction is pivotally supported by the front portion of the connecting shaft 65.
第１カム検出レバー６６の右端部に、ベースフレームの第２開口部４０ｂを介して配設された前後方向向きの第１スーパー送り接触子４３の前端部が固着され、第１カム検出レバー６６の左端部に固着した連結ピン６７を介して、送り発生板５２の第１係合穴５２ａに係合している。 The front end portion of the first super feed contact 43 in the front-rear direction disposed through the second opening 40b of the base frame is fixed to the right end portion of the first cam detection lever 66, and the first cam detection lever 66 is fixed. Is engaged with the first engagement hole 52a of the feed generating plate 52 via a connecting pin 67 fixed to the left end portion of the feed generating plate 52.
連結軸６５の前端部に正面視略長円形の第１カム当接レバー６８の下端部が固着され、連結軸６５の後方部分に第１レバー支持体６９の右端部が、第１カム当接レバー６８と所定角度をなすように固着されている。第１レバー支持体６９の左端部は枢支ピン７０でベースフレーム４０に回動可能に枢支されている。 A lower end portion of a first cam contact lever 68 having a substantially oval shape when viewed from the front is fixed to the front end portion of the connecting shaft 65, and a right end portion of the first lever support 69 is attached to the rear portion of the connecting shaft 65. The lever 68 is fixed so as to form a predetermined angle. The left end portion of the first lever support 69 is pivotally supported by the base frame 40 by a pivot pin 70.
ところで、ベースフレーム４０に固着した枢支軸７６（これは後述する第２切換え機構４７の第２カム当接レバー７５を枢支する枢支軸）に巻きバネ７１が巻装され、巻きバネ７１の一端部が第１スーパー送り接触子４３に下側から係止され、巻きバネ７１の他端部がベースフレーム４０の係止穴４０ｆに係止されている。 By the way, a winding spring 71 is wound around a pivot shaft 76 fixed to the base frame 40 (this is a pivot shaft that pivotally supports a second cam contact lever 75 of the second switching mechanism 47 described later). One end of the winding spring 71 is locked to the first super feed contact 43 from below, and the other end of the winding spring 71 is locked to the locking hole 40 f of the base frame 40.
それ故、第１カム検出レバー６６は、巻きバネ７１のバネ力により左端部の連結ピン６７を介して第１係合穴５２ａに支持されて、その全体が上側に持ち上げられるように、つまり第１スーパー送り接触子４３が下側のスーパー送りカム４２に接触しないようになっている。ところで、前述した切換え制御カム３５には、突起状の第１切換えカム部３５ｆが形成されている。送りダイヤル３６により、通常の布送り（送り量：１、２、３、４）が選択されている場合には、図５，図１３−２，図１４−２に示すように、第１カム当接レバー６８が第１切換えカム部３５ｆに接触することはない。 Therefore, the first cam detection lever 66 is supported by the first engagement hole 52a via the connecting pin 67 at the left end by the spring force of the winding spring 71, and the first cam detection lever 66 is lifted upward. The 1 super feed contact 43 does not come into contact with the lower super feed cam 42. Incidentally, the switching control cam 35 described above is formed with a protruding first switching cam portion 35f. When the normal cloth feed (feed amount: 1, 2, 3, 4) is selected by the feed dial 36, as shown in FIGS. 5, 13-2, and 14-2, the first cam The contact lever 68 does not contact the first switching cam portion 35f.
しかし、送りダイヤル３６により、第１スーパー模様用の布送りが選択された場合、図１５−２に示すように、第１カム当接レバー６８が第１切換えカム部３５ｆに接触して、下側に押し下げられるため、第１カム検出レバー６６は巻きバネ７１のバネ力に抗して下側に移動し、第１スーパー送り接触子４３がスーパー送りカム４２に上側から接触するようになる。 However, when the cloth feed for the first super pattern is selected by the feed dial 36, the first cam contact lever 68 comes into contact with the first switching cam portion 35f as shown in FIG. Since the first cam detection lever 66 moves downward against the spring force of the winding spring 71, the first super feed contact 43 comes into contact with the super feed cam 42 from above.
このとき、第１カム検出レバー６６の回動中心は第１レバー支持体６９と第１カム当接レバー６８とで位置決めされるので、この接触状態でスーパー送りカム４２が回転駆動されると、第１スーパー送り接触子４３がスーパー送りカム４２の後進用カム面４２ａと前進用カム面４２ｂにより上下動するため、第１カム検出レバー６６は連結軸６５を回動中心として時計回り又は反時計回りに揺動し、その連動に応じて送り発生板５２が上下に移動され、前進送りと後進送りが発生する。このとき、実用送り接触子５５は上側退避領域３５ｄに退避しているので、スーパー模様のための布送りに、実用模様用の布送りが影響することはない。 At this time, since the rotation center of the first cam detection lever 66 is positioned by the first lever support 69 and the first cam contact lever 68, when the super feed cam 42 is rotationally driven in this contact state, Since the first super feed contact 43 moves up and down by the reverse cam surface 42a and the forward cam surface 42b of the super feed cam 42, the first cam detection lever 66 rotates clockwise or counterclockwise around the connecting shaft 65 as a rotation center. The feed generating plate 52 is moved up and down in accordance with the interlock, and forward feed and reverse feed are generated. At this time, since the practical feed contact 55 is retracted in the upper retreat area 35d, the fabric feed for the practical pattern does not affect the fabric feed for the super pattern.
次に、第２切換え機構４７について説明する。図５，図８，図１１に示すように、切換え制御カム３５の直ぐ下側において、略鉤形状の第２カム当接レバー７５の屈曲部がベースフレーム４０に固着した枢支軸７６に回動可能に枢支されている。第２カム当接レバー７５の上端部は、切換え制御カム３５に形成した突起状の第２切換えカム部３５ｇに当接可能である。 Next, the second switching mechanism 47 will be described. As shown in FIGS. 5, 8, and 11, immediately below the switching control cam 35, the bent portion of the substantially cam-shaped second cam contact lever 75 rotates around the pivot shaft 76 fixed to the base frame 40. It is pivotally supported. The upper end portion of the second cam abutment lever 75 can abut on a protruding second switching cam portion 35 g formed on the switching control cam 35.
但し、第２切換えカム部３５ｇは第１切換えカム部３５ｆよりも前側に形成されているため、第２カム当接レバー７５が第１切換えカム部３５ｆに接触することはなく、第１カム当接レバー６８が第２切換えカム部３５ｇに接触することもない。 However, since the second switching cam portion 35g is formed in front of the first switching cam portion 35f, the second cam abutment lever 75 does not contact the first switching cam portion 35f, and the first cam contact The contact lever 68 does not contact the second switching cam portion 35g.
ベースフレーム４０の前側に第２カム検出レバー７７が配設され、ベースフレーム４０の後側に第２レバー支持体７８が配設されている。第２レバー支持体７８の下端部は枢支ピン７９によりベースフレーム４０に回動可能に枢支され、第２レバー支持体７８の上端部と第２カム検出レバー７７の上端近傍部とが、ベースフレーム４０の第４開口部４０ｄを介して配設された連結軸８０により連結されている。第２カム検出レバー７７の上端部に、ベースフレーム４０の第３開口部４０ｃを介して配設された前後方向向きの第２スーパー送り接触子４４の前端部が固着されている。 A second cam detection lever 77 is disposed on the front side of the base frame 40, and a second lever support body 78 is disposed on the rear side of the base frame 40. The lower end of the second lever support 78 is pivotally supported on the base frame 40 by a pivot pin 79, and the upper end of the second lever support 78 and the vicinity of the upper end of the second cam detection lever 77 are The base frame 40 is connected by a connecting shaft 80 disposed through a fourth opening 40d. A front end portion of the second super feed contact 44 in the front-rear direction disposed through the third opening 40 c of the base frame 40 is fixed to the upper end portion of the second cam detection lever 77.
第２カム検出レバー７７の直ぐ前側に略逆Ｌ字状の送り揺動レバー８１が配設され、第２カム検出レバー７７の下端部に固着した連結ピン８２が送り揺動レバー８１の下端部に形成した係合穴８１ａに係合している。送り揺動レバー８１はその中段部において、ベースフレーム４０に固定ビス８３で固着した左右方向向きのレバー支持体８４の左端部に枢支ピン８５により回動可能に枢支されている。 A substantially inverted L-shaped feed swing lever 81 is disposed immediately in front of the second cam detection lever 77, and a connecting pin 82 fixed to the lower end portion of the second cam detection lever 77 is a lower end portion of the feed swing lever 81. It is engaged with the engagement hole 81a formed in the above. The feed swing lever 81 is pivotally supported by a pivot pin 85 at the left end portion of the lever support 84 in the left-right direction fixed to the base frame 40 with a fixing screw 83 at the middle step portion.
更に、第２レバー支持体７８の突出連結部７８ａ（図１７−３参照）に固着した連結ピン８６が、レバー支持体８４の切欠き８４ａを介して第２カム当接レバー７５の下端部に形成した係合穴７５ａに係合している。ここで、引っ張りコイルバネ８７はその一端部がベースフレーム４０の切り起こし４０ｇに引っ掛けられ、その他端部が第２カム当接レバー７５の途中部の湾曲部に係合し、第２カム当接レバー７５は枢支軸７６を回動中心として、引っ張りコイルバネ８７のバネ力により常に時計回り方向に、つまり第２スーパー送り接触子４４をスーパー送りカム４２に接触させないようになっている。 Further, the connecting pin 86 fixed to the protruding connecting portion 78a (see FIG. 17-3) of the second lever support 78 is connected to the lower end of the second cam contact lever 75 via the notch 84a of the lever support 84. It engages with the formed engagement hole 75a. Here, one end of the tension coil spring 87 is hooked on the cut-and-raised portion 40g of the base frame 40, and the other end engages with a curved portion in the middle of the second cam contact lever 75, so that the second cam contact lever. 75, with the pivot shaft 76 as the center of rotation, the spring force of the tension coil spring 87 always prevents the second super feed contactor 44 from contacting the super feed cam 42 in the clockwise direction.
ところで、前述した切換え制御カム３５には、突起状の第２切換えカム部３５ｇが形成されている。その為、送りダイヤル３６により、第２スーパー模様用の布送りが選択された場合、図１７−３に示すように、第２カム当接レバー７５の上端が第２切換えカム部３５ｇに接触して、第２カム当接レバー７５が引っ張りコイルバネ８７のバネ力に抗して反時計回りに回動するため、第２レバー支持体７８の上端部が右方に回動し、これに伴って第２カム検出レバー７７の上端部が右方に移動するので、第２スーパー送り接触子４４がスーパー送りカム４２に側方から接触するようになる。 Incidentally, the switching control cam 35 described above is formed with a protruding second switching cam portion 35g. Therefore, when cloth feed for the second super pattern is selected by the feed dial 36, the upper end of the second cam contact lever 75 comes into contact with the second switching cam portion 35g as shown in FIG. Since the second cam contact lever 75 rotates counterclockwise against the spring force of the tension coil spring 87, the upper end of the second lever support 78 rotates to the right. Since the upper end portion of the second cam detection lever 77 moves rightward, the second super feed contact 44 comes into contact with the super feed cam 42 from the side.
このとき、第２カム検出レバー７７の回動中心は第２レバー支持体７８で位置決めされるため、この接触状態でスーパー送りカム４２が回転駆動されると、第２スーパー送り接触子４４がスーパー送りカム４２の後進用カム面４２ａと前進用カム面４２ｂにより連結軸８０を回動中心として左右に往復移動するため、送り揺動レバー８１は枢支ピン８５を回動中心として時計回り又は反時計回りに揺動し、後述する送り第２スーパー模様用送り発生機構５０により送り発生板５２が上下に移動され、前進送りと後進送りが発生する。このとき、実用送り接触子５５は下側退避領域３５ｅに退避しているので、スーパー模様のための布送りに、実用模様用の布送りが影響することはない。 At this time, since the rotation center of the second cam detection lever 77 is positioned by the second lever support 78, when the super feed cam 42 is rotationally driven in this contact state, the second super feed contact 44 is super Since the reverse cam surface 42a and the forward cam surface 42b of the feed cam 42 reciprocate left and right around the connecting shaft 80, the feed rocking lever 81 rotates clockwise or counterclockwise around the pivot pin 85 as the rotation center. The feed generating plate 52 swings clockwise and the feed generating plate 52 is moved up and down by a feed second super pattern feed generating mechanism 50 to be described later, and forward feed and reverse feed are generated. At this time, since the practical feed contact 55 is retracted to the lower retreat area 35e, the fabric feed for the practical pattern does not affect the fabric feed for the super pattern.
次に、スーパー模様の為の布送りを発生させるスーパー送り発生機構４８について説明する。このスーパー送り発生機構４８は、第１スーパー模様用送り発生機構４９と、第２スーパー模様用送り発生機構５０とを有している。 Next, the super feed generating mechanism 48 that generates the cloth feed for the super pattern will be described. The super feed generating mechanism 48 includes a first super pattern feed generating mechanism 49 and a second super pattern feed generating mechanism 50.
先ず、第１スーパー模様用送り発生機構４９について説明すると、前述したように、第１カム検出レバー６６の左端部の連結ピン６７が送り発生板５２の第１係合穴５２ａに係合している。送りダイヤル３６により第１スーパー模様（ＳＳ１）が選択されると、第１カム当接レバー６８が第１切換えカム部３５ｆに接触し、第１カム検出レバー６６が押し下げられて第１スーパー送り接触子４３がスーパー送りカム４２に接触し、第１カム検出レバー６６が連結軸６５を回動中心として揺動し、その揺動に応じて送り発生板５２が上下に移動され、前進送りと後進送りがサイクリックに発生する。 First, the first super pattern feed generating mechanism 49 will be described. As described above, the connecting pin 67 at the left end of the first cam detecting lever 66 is engaged with the first engagement hole 52a of the feed generating plate 52. Yes. When the first super pattern (SS1) is selected by the feed dial 36, the first cam contact lever 68 comes into contact with the first switching cam portion 35f, and the first cam detection lever 66 is pushed down to make the first super feed contact. The child 43 comes into contact with the super feed cam 42, the first cam detection lever 66 swings around the connecting shaft 65, and the feed generating plate 52 is moved up and down in response to the swing, and the forward feed and the reverse drive are moved. Feeding occurs cyclically.
次に、第２スーパー模様用送り発生機構５０について説明する。送り揺動レバー８１は、その左端部に固着した連結ピン９０を介して、送り発生板５２の第２係合穴５２ｂに係合している。前述したように、送りダイヤル３６により第２スーパー模様（ＳＳ２）が選択されると、前述したように、第２レバー支持体７８の上端部が右方に回動し、これに伴う第２カム検出レバー７７の右方への移動により第２スーパー送り接触子４４がスーパー送りカム４２に側方から接触し、送り揺動レバー８１が枢支ピン８５を回動中心として揺動し、その揺動に応じて送り発生板５２が上下に移動され、前進送りと後進送りがサイクリックに発生する。 Next, the second super pattern feed generating mechanism 50 will be described. The feed swing lever 81 is engaged with the second engagement hole 52b of the feed generating plate 52 via a connecting pin 90 fixed to the left end portion thereof. As described above, when the second super pattern (SS2) is selected by the feed dial 36, as described above, the upper end portion of the second lever support 78 is rotated to the right, and the second cam associated therewith is rotated. As the detection lever 77 moves to the right, the second super feed contact 44 comes into contact with the super feed cam 42 from the side, and the feed swing lever 81 swings around the pivot pin 85 as the center of rotation. In accordance with the movement, the feed generating plate 52 is moved up and down, and forward feed and reverse feed are generated cyclically.
ここで、これら第１，第２スーパー送り接触子４３，４４のスーパー送りカム４２に対する接触位相について説明する。スーパー送りカム４２の回動中心に対する第１スーパー送り接触子４３と第２スーパー送り接触子４４の接触位相には、約１２０°の位相差がある。即ち、位相差が３針分の９０°よりも１針分の３０°だけ遅れている。つまり、第２スーパー送り接触子４４の揺動位相は、第１スーパー送り接触子４３の揺動位相よりも３０°だけずれている。 Here, the contact phase of the first and second super feed contacts 43 and 44 with respect to the super feed cam 42 will be described. The contact phase of the first super feed contact 43 and the second super feed contact 44 with respect to the rotation center of the super feed cam 42 has a phase difference of about 120 °. That is, the phase difference is delayed by 30 ° for one stitch from 90 ° for three stitches. That is, the swing phase of the second super feed contact 44 is shifted from the swing phase of the first super feed contact 43 by 30 °.
それ故、第１スーパー送り接触子４３の揺動により、前進→前進→後進→前進→前進→後進・・の布送り発生に対して、第２スーパー送り接触子４４の揺動により、前進→後進→前進→前進→後進→前進→・・・の布送りが発生する。即ち、第２スーパー送り接触子４４による後進送りの発生時期が、第１スーパー送り接触子４３による後進送りの発生時期よりも１針分だけ早まるようになっている。 Therefore, when the first super feed contactor 43 swings, the second super feed contactor 44 swings forward with respect to forward, forward, reverse, forward, forward, reverse,. Reverse → forward → forward → reverse → forward → ... occurs. That is, the generation timing of the reverse feed by the second super feed contact 44 is advanced by one stitch from the generation timing of the reverse feed by the first super feed contact 43.
ここで、送りダイヤル３６において、第１スーパー模様（ＳＳ１）を選択する操作部位に対応する切換え操作部３６ａと、第２スーパー模様（ＳＳ２）を選択する操作部位に対応する切換え操作部３６ｂが夫々送りダイヤル３６と一体的に構成されている。即ち、切換え操作部３６ａ，３６ｂは、複数の模様を択一的に選択する模様選択ダイヤル１７の回動中心軸と同心軸上に配置されている。 Here, in the feed dial 36, a switching operation part 36a corresponding to the operation part for selecting the first super pattern (SS1) and a switching operation part 36b corresponding to the operation part for selecting the second super pattern (SS2) are respectively provided. It is constructed integrally with the feed dial 36. That is, the switching operation units 36a and 36b are arranged on the concentric axis with the rotation central axis of the pattern selection dial 17 that selectively selects a plurality of patterns.
次に、このように構成された送り発生装置１３の作用及び効果について説明する。 Next, the operation and effect of the feed generator 13 configured as described above will be described.
模様選択ダイヤル１７により所望の実用模様が選択されると、針振り接触子移動機構により針振り接触子が対応する針振りカムに対応するように移動され、針振り機構により針振りが可能になる。一方、送りダイヤル３６により所望の実用模様の為の送り量が選択されると、図１３−１に示すように、切換え制御カム３５が送りダイヤル３６と一体的に回動され、実用送り接触子５５が接触する正送りカム面３５ｂに応じて実用送りレバー５３が揺動し、送り発生板５２の高さ位置が変更されて前進送り量が変更される。 When a desired practical pattern is selected by the pattern selection dial 17, the needle swing contactor is moved by the needle swing contactor moving mechanism so as to correspond to the corresponding needle swing cam, and the needle swing mechanism enables the needle swing. . On the other hand, when a feed amount for a desired practical pattern is selected by the feed dial 36, the switching control cam 35 is rotated integrally with the feed dial 36 as shown in FIG. The practical feed lever 53 swings in accordance with the forward feed cam surface 35b with which 55 contacts, and the height position of the feed generation plate 52 is changed to change the forward feed amount.
返し縫いに際しては、図１４−１に示すように、実用送り接触子５５が逆送りカム面３５ｃに接触し、後進送りに切換えられて返し縫いが可能になる。このように、実用模様の布送りが選択されている場合には、図１３−２，図１４−２に示すように第１カム当接レバー６８が第１切換えカム部３５ｆに当接せず、しかも図１３−３，図１４−３に示すように第２カム当接レバー７５が第２切換えカム部３５ｇに当接しないため、実用模様の布送りにスーパー模様の布送りが影響することはない。 In reverse feed stitching, as shown in FIG. 14A, the practical feed contact 55 comes into contact with the reverse feed cam surface 35c and is switched to reverse feed to enable reverse feed stitching. In this way, when the cloth feed of the practical pattern is selected, the first cam contact lever 68 does not contact the first switching cam portion 35f as shown in FIGS. 13-2 and 14-2. Moreover, as shown in FIGS. 13-3 and 14-3, since the second cam contact lever 75 does not contact the second switching cam portion 35g, the super pattern cloth feed affects the practical pattern cloth feed. There is no.
次に、第１スーパー模様を選択する為に、送りダイヤル３６を実用模様の布送り量の設定範囲以上に反時計回りに回動させて、送りダイヤル３６の「ＳＳ１」を選択マーク３ａに合致させる。この場合、図１５−１，図１５−２、図１６−１，図１６−２に示すように、前述したように、第１切換え機構４６により第１スーパー送り接触子４３がスーパー送りカム４２に上側から接触し、第１カム検出レバー６６が連結軸６５を回動中心とする揺動により送り発生板５２が上下に移動される。 Next, in order to select the first super pattern, the feed dial 36 is rotated counterclockwise beyond the setting range of the cloth feed amount of the practical pattern, and “SS1” of the feed dial 36 matches the selection mark 3a. Let In this case, as shown in FIGS. 15-1, 15-2, 16-1, and 16-2, as described above, the first switching mechanism 46 causes the first super feed contactor 43 to move to the super feed cam 42. The feed generating plate 52 is moved up and down by the first cam detection lever 66 swinging about the connecting shaft 65 as the center of rotation.
即ち、図１５−１に示すように、第１スーパー送り接触子４３がスーパー送りカム４２の前進用カム面４２ｂに接触する場合、前進送りが発生し、図１６−１に示すように、第１スーパー送り接触子４３がスーパー送りカム４２の後進用カム面４２ａに接触する場合、後進送りが発生する。 That is, as shown in FIG. 15A, when the first super feed contactor 43 comes into contact with the forward cam surface 42b of the super feed cam 42, forward feed occurs, and as shown in FIG. When the 1 super feed contact 43 comes into contact with the reverse cam surface 42a of the super feed cam 42, reverse feed occurs.
この場合、図１５−１，図１６−１に示すように、実用送り接触子５５は実用送りカム３５ａの上側退避領域３５ｄに退避し、しかも図１５−１，図１５−３、図１６−１，図１６−３に示すように、第２カム当接レバー７５が第２切換えカム部３５ｇに当接しないため、第１スーパー模様の布送りに、実用模様の布送りや第２スーパー模様の布送りが影響することはない。 In this case, as shown in FIGS. 15-1 and 16-1, the practical feed contact 55 is retracted to the upper retraction area 35d of the practical feed cam 35a, and FIGS. 15-1, 15-3, and 16- 1 and FIG. 16-3, since the second cam contact lever 75 does not contact the second switching cam portion 35g, the first super pattern cloth feed and the second super pattern cloth feed The cloth feed will not be affected.
次に、第２スーパー模様を選択する為に、送りダイヤル３６を実用模様の布送り量の設定範囲以上に時計回りに回動させて、送りダイヤル３６の「ＳＳ２」を選択マーク３ａに合致させる。この場合、図１７−１，図１７−３、図１８−１，図１８−３に示すように、前述したように、第２切換え機構４７により第２スーパー送り接触子４４がスーパー送りカム４２に側面から接触し、送り揺動レバー８１が枢支ピン８５を回動中心とする揺動により送り発生板５２が上下に移動される。 Next, in order to select the second super pattern, the feed dial 36 is rotated clockwise beyond the set range of the cloth feed amount of the practical pattern so that “SS2” of the feed dial 36 matches the selection mark 3a. . In this case, as shown in FIGS. 17-1, 17-3, 18-1, and 18-3, as described above, the second switching mechanism 47 causes the second super feed contactor 44 to move to the super feed cam 42 as described above. The feed generating plate 52 is moved up and down when the feed swing lever 81 swings about the pivot pin 85 as the center of rotation.
即ち、図１７−１，図１７−３に示すように、第２スーパー送り接触子４４がスーパー送りカム４２の前進用カム面４２ｂに接触する場合、前進送りが発生し、図１８−１，図１８−３に示すように、第２スーパー送り接触子４４がスーパー送りカム４２の後進用カム面４２ａに接触する場合、後進送りが発生する。 That is, as shown in FIGS. 17A and 17C, when the second super feed contactor 44 comes into contact with the forward cam surface 42b of the super feed cam 42, forward feed occurs, and FIGS. As shown in FIG. 18C, when the second super feed contactor 44 comes into contact with the reverse cam surface 42a of the super feed cam 42, reverse feed occurs.
この場合、図１７−１，図１８−１に示すように、実用送り接触子５５は実用送りカム３５ａの下側退避領域３５ｅに退避し、しかも図１７−２，図１８−２に示すように、第１カム当接レバー６８が第１切換えカム部３５ｆに当接しないため、第２スーパー模様の布送りに、実用模様の布送りや第１スーパー模様の布送りが影響することはない。 In this case, as shown in FIGS. 17A and 18A, the practical feed contact 55 is retracted to the lower retreat area 35e of the practical feed cam 35a, and as shown in FIGS. 17-2 and 18-2. In addition, since the first cam contact lever 68 does not contact the first switching cam portion 35f, the cloth feed of the practical pattern and the cloth feed of the first super pattern do not affect the cloth feed of the second super pattern. .
ところで、前述したように、第１スーパー送り接触子４３と、第２スーパー送り接触子４４の揺動位相が所定量だけずれている。つまり、第２スーパー送り接触子４４による後進送りの発生時期が、第１スーパー送り接触子４３による後進送りの発生時期よりも１針分だけ早まるようになっている。 As described above, the swing phases of the first super feed contact 43 and the second super feed contact 44 are shifted by a predetermined amount. In other words, the reverse feed generation timing by the second super feed contact 44 is advanced by one stitch than the reverse feed generation timing by the first super feed contact 43.
それ故、例えば、図１９に示す実用模様として「６」を選択し、第１切換え機構４６により第１スーパー送り接触子４３を有効化させた場合には、前進→前進→後進→前進→前進→後進・・の布送り発生により、図１９に「１８」で示す第１スーパー模様を縫製できるのに対して、第２切換え機構４７により第２スーパー送り接触子４４を有効化させた場合には、前進→後進→前進→前進→後進→前進→・・・の布送り発生により、図１９に「２８」で示す第２スーパー模様を縫製できる。 Therefore, for example, when “6” is selected as the practical pattern shown in FIG. 19 and the first super feed contactor 43 is activated by the first switching mechanism 46, forward → forward → reverse → forward → forward → The first super pattern shown by “18” in FIG. 19 can be sewn due to the occurrence of the reverse / ··· cloth feed, whereas the second super feed contact 44 is activated by the second switching mechanism 47. 19 can sew the second super pattern indicated by “28” in FIG. 19 by the occurrence of cloth feed of forward, reverse, forward, forward, reverse, forward, and so on.
このように、単一のスーパー送りカム４２と、複数の第１，第２スーパー送り接触子４３，４４と、接触子切換え機構４５を設けたので、前進送りにサイクリックに含まれる後進送りのタイミングを適宜ずらせることができる。それ故、単一のスーパー送りカム４２と複数の送り接触子４３，４４を用いて、布送りの前進と後進の組合せのパターンが異なる複数のスーパー模様を縫製することができる。 As described above, since the single super feed cam 42, the plurality of first and second super feed contacts 43 and 44, and the contact switching mechanism 45 are provided, the forward feed included in the forward feed is included in the cyclic feed. The timing can be shifted appropriately. Therefore, using a single super feed cam 42 and a plurality of feed contacts 43 and 44, it is possible to sew a plurality of super patterns having different combinations of forward and reverse cloth feed patterns.
布送り発生の為に、単一のスーパー送りカム４２を設けるだけであって、第１，第２スーパー送り接触子４３，４４の為の送りリリース機構を不要にできるため、スペース的に有利になり、送り発生装置１３の小型化、軽量化を実現することができる。 Only a single super feed cam 42 is provided to generate the cloth feed, and the feed release mechanism for the first and second super feed contacts 43 and 44 can be eliminated, which is advantageous in terms of space. Thus, the feed generator 13 can be reduced in size and weight.
また、接触子切換え機構４５を操作するための切換え操作部３６ａ，３６ｂは、複数の実用模様の布送り量を設定する送りダイヤル３６と一体的に構成され、その送りダイヤル３６を布送り量の設定範囲以上に回動させたときにスーパー模様（ＳＳ１，ＳＳ２）が選択されるので、実用模様の布送りとスーパー模様の布送りを１つの送りダイヤル３６で選択でき、しかも切換え操作部３６ａ，３６ｂにより複数の第１，第２スーパー送り接触子４３，４４を切換えてスーパー模様の布送りを選択することができるため、布送り選択の操作性を高めることができる。 Further, the switching operation portions 36a and 36b for operating the contact switching mechanism 45 are integrally formed with a feed dial 36 for setting a plurality of practical patterns of cloth feed amounts. Since the super pattern (SS1, SS2) is selected when it is rotated beyond the set range, the cloth feed of the practical pattern and the cloth feed of the super pattern can be selected by one feed dial 36, and the switching operation unit 36a, Since the plurality of first and second super feed contacts 43 and 44 can be switched by 36b to select the super pattern cloth feed, the operability of the cloth feed selection can be improved.
このような布送り選択に際して、切換え操作部３６ａ，３６ｂは複数の第１，第２スーパー送り接触子４３，４４を切換えるだけであって、余分な送りリリース機構の作動を伴わないので、切換え操作部３６ａ，３６ｂの操作荷重を小さくでき、切換え操作部３６ａ，３６ｂの操作性を向上させることができる。 In such cloth feed selection, the switching operation portions 36a and 36b only switch the plurality of first and second super feed contacts 43 and 44, and are not accompanied by an operation of an extra feed release mechanism. The operation load of the parts 36a and 36b can be reduced, and the operability of the switching operation parts 36a and 36b can be improved.
また、切換え操作部３６ａ，３６ｂは、複数の模様を択一的に選択する模様選択ダイヤル１７の回動中心軸と同心軸上に配置されたので、切換え操作部３６ａ，３６ｂと模様選択ダイヤル１７を実用的に且つコンパクトに配置できる上、模様選択操作と布送りの切換え操作の操作性を高めることができる。 Further, since the switching operation units 36a and 36b are arranged on the concentric axis with the central axis of rotation of the pattern selection dial 17 that selectively selects a plurality of patterns, the switching operation units 36a and 36b and the pattern selection dial 17 are arranged. Can be arranged practically and compactly, and the operability of the pattern selection operation and the cloth feed switching operation can be improved.
更に、接触子切換え機構４５は複数の第１，第２スーパー送り接触子４３，４４を択一的にスーパー送りカム４２に接触させる第１，第２切換えカム部３５ｆ，３５ｇ部を個別に設けた切換え制御カム３５を備え、実用模様の布送り量を制御する実用送りカム３５ａを切換え制御カム３５に一体的に設けたので、スーパー送りカム４２に接触させる第１，第２スーパー送り接触子４３，４４を切換え制御カム３５の第１，第２切換えカム部３５ｆ，３５ｇで個別に且つ容易に切換えることができる。 Further, the contact switching mechanism 45 is provided with first and second switching cam portions 35f and 35g that individually contact the plurality of first and second super feed contacts 43 and 44 with the super feed cam 42, respectively. The switching control cam 35 is provided, and the practical feed cam 35a for controlling the cloth feed amount of the practical pattern is provided integrally with the switching control cam 35. Therefore, the first and second super feed contacts which are brought into contact with the super feed cam 42 are provided. 43 and 44 can be switched individually and easily by the first and second switching cam portions 35f and 35g of the switching control cam 35.
加えて、実用模様の為の実用送りカム３５ａを別体として設けなくてよいため、スペース的に有利であり、しかも部品点数を削減でき、組付け面やコスト面の優位性を高めることができる。 In addition, since the practical feed cam 35a for the practical pattern need not be provided as a separate body, it is advantageous in terms of space, and the number of parts can be reduced, and the superiority in assembling and cost can be enhanced. .
次に、前記実施の形態の変更形態について説明する。 Next, a modified form of the embodiment will be described.
１〕単一のスーパー送りカム４２の周りに３つ以上のスーパー送り接触子を設け、接触子切換え機構により、これら複数のスーパー送り接触子のうちの１つがスーパー送りカム４２に接触するように構成してもよい。この場合には、多数のスーパー模様を縫製することができる。 1) Three or more super feed contacts are provided around a single super feed cam 42, and one of the plurality of super feed contacts is brought into contact with the super feed cam 42 by a contact switching mechanism. It may be configured. In this case, a large number of super patterns can be sewn.
２〕本発明は以上説明した実施例に限定されるものではなく、当業者であれば、本発明の趣旨を逸脱しない範囲で、前記実施例に種々の変更を付加して実施することができ、本発明はそれらの変更形態をも包含するものである。 2] The present invention is not limited to the embodiments described above, and those skilled in the art can implement the present invention with various modifications without departing from the spirit of the present invention. The present invention includes those modifications.
Ｍ ジグザグミシン
１３ 送り発生装置
１７ 模様選択ダイヤル
３５ 切換え制御カム
３５ａ 実用送りカム
３５ｆ 第１切換えカム部
３５ｇ 第２切換えカム部
３６ 送りダイヤル
３６ａ 切換え操作部（切換え操作手段）
３６ｂ 切換え操作部（切換え操作手段）
４２ スーパー送りカム
４３ 第１スーパー送り接触子
４４ 第２スーパー送り接触子
４５ 接触子切換え機構
４６ 第１切換え機構
４７ 第２切換え機構
５２ 送り発生板
６６ 第１カム検出レバー
６８ 第１カム当接レバー
７５ 第２カム当接レバー
７７ 第２カム検出レバー
８１ 送り揺動レバー
M zigzag sewing machine 13 feed generator 17 pattern selection dial 35 switching control cam 35a practical feed cam 35f first switching cam portion 35g second switching cam portion 36 feed dial 36a switching operation portion (switching operation means)
36b Switching operation part (switching operation means)
42 Super feed cam 43 First super feed contact 44 Second super feed contact 45 Contact switching mechanism 46 First switching mechanism 47 Second switching mechanism 52 Feed generating plate 66 First cam detection lever 68 First cam contact lever 75 Second cam contact lever 77 Second cam detection lever 81 Feed swing lever
Claims (5)
前記スーパー模様を縫製する為にスーパー模様用の布送りを発生させる単一のスーパー送りカムと、
前記スーパー送りカムに接触する複数の送り接触子であって、布送りの前進と後進の組合せのパターンが異なる複数のスーパー模様を発生させるために、前記スーパー送りカムによる前記送り接触子の揺動位相が所定量だけずれるように配置した複数の送り接触子と、
前記複数の送り接触子のうちの１つがスーパー送りカムに接触するように切換える接触子切換え機構と、
を備えたことを特徴とするミシンの送り発生装置。 In the sewing machine feed generator that can sew by selecting multiple practical patterns and multiple super patterns alternatively,
A single super feed cam for generating a super pattern cloth feed for sewing the super pattern;
Swinging of the feed contact by the super feed cam in order to generate a plurality of super contacts which are in contact with the super feed cam and have different combinations of forward and reverse cloth feed patterns A plurality of feed contacts arranged so that the phase is shifted by a predetermined amount;
A contact switching mechanism for switching so that one of the plurality of feed contacts contacts the super feed cam;
A sewing machine feed generator characterized by comprising:
The contact switching mechanism includes a switching control cam provided with a plurality of cam portions that individually contact a plurality of feed contacts with a super feed cam, and includes a feed cam for controlling the cloth feed amount of the practical pattern. 5. The sewing machine feed generator according to claim 4, wherein the sewing machine feed generator is provided integrally with the switching control cam.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004313435A JP4506411B2 (en) | 2004-10-28 | 2004-10-28 | Sewing machine feed generator |
| US11/258,878 US7461606B2 (en) | 2004-10-28 | 2005-10-27 | Feed generating device for sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2004313435A JP4506411B2 (en) | 2004-10-28 | 2004-10-28 | Sewing machine feed generator |
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| JP2006122284A true JP2006122284A (en) | 2006-05-18 |
| JP4506411B2 JP4506411B2 (en) | 2010-07-21 |
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| JP2004313435A Expired - Fee Related JP4506411B2 (en) | 2004-10-28 | 2004-10-28 | Sewing machine feed generator |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4728164U (en) * | 1971-04-12 | 1972-11-30 | ||
| JPS57108772U (en) * | 1980-12-24 | 1982-07-05 | ||
| US4463694A (en) * | 1980-12-11 | 1984-08-07 | Janome Sewing Machine Co., Ltd. | Fabric feed amount adjusting device of sewing machine |
| JPS6022920Y2 (en) * | 1979-08-16 | 1985-07-08 | 蛇の目ミシン工業株式会社 | Sewing pattern selection mechanism of sewing machine |
| JPS6226061Y2 (en) * | 1980-12-11 | 1987-07-03 | ||
| JPH075569U (en) * | 1993-06-30 | 1995-01-27 | ジャガー株式会社 | Zigzag sewing machine |
| JPH10295961A (en) * | 1997-04-22 | 1998-11-10 | Brother Ind Ltd | Zigzag sewing machine |
| JP2000157765A (en) * | 1998-11-26 | 2000-06-13 | Brother Ind Ltd | Pattern selector of sewing machine |
| JP2000167273A (en) * | 1998-12-03 | 2000-06-20 | Brother Ind Ltd | Feed generator for sewing machine |
-
2004
- 2004-10-28 JP JP2004313435A patent/JP4506411B2/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4728164U (en) * | 1971-04-12 | 1972-11-30 | ||
| JPS6022920Y2 (en) * | 1979-08-16 | 1985-07-08 | 蛇の目ミシン工業株式会社 | Sewing pattern selection mechanism of sewing machine |
| US4463694A (en) * | 1980-12-11 | 1984-08-07 | Janome Sewing Machine Co., Ltd. | Fabric feed amount adjusting device of sewing machine |
| JPS6226061Y2 (en) * | 1980-12-11 | 1987-07-03 | ||
| JPS57108772U (en) * | 1980-12-24 | 1982-07-05 | ||
| JPH075569U (en) * | 1993-06-30 | 1995-01-27 | ジャガー株式会社 | Zigzag sewing machine |
| JPH10295961A (en) * | 1997-04-22 | 1998-11-10 | Brother Ind Ltd | Zigzag sewing machine |
| JP2000157765A (en) * | 1998-11-26 | 2000-06-13 | Brother Ind Ltd | Pattern selector of sewing machine |
| JP2000167273A (en) * | 1998-12-03 | 2000-06-20 | Brother Ind Ltd | Feed generator for sewing machine |
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| JP4506411B2 (en) | 2010-07-21 |
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