JP2001340674A - Overedging industrial sewing machine - Google Patents
Overedging industrial sewing machineInfo
- Publication number
- JP2001340674A JP2001340674A JP2000163104A JP2000163104A JP2001340674A JP 2001340674 A JP2001340674 A JP 2001340674A JP 2000163104 A JP2000163104 A JP 2000163104A JP 2000163104 A JP2000163104 A JP 2000163104A JP 2001340674 A JP2001340674 A JP 2001340674A
- Authority
- JP
- Japan
- Prior art keywords
- claw
- sewing machine
- overlock
- lower knife
- needle
- 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
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はオーバーロックミシ
ンに関する。[0001] The present invention relates to an overlock sewing machine.
【０００２】[0002]
【従来の技術】オーバーロックミシンは、上糸を有して
上下動する針と、先端部の糸穴に挿通した上ルーパ糸を
有し被縫製物の布送り方向と交差状に作動する上ルーパ
と、下ルーパ糸を有する下ルーパとが協動して縁かがり
縫いを行う。この種のオーバーロックミシンの縫い目に
は、上メスと下メスとで切断した布端を平坦としたまま
で縁かがりする縁かがり縫いと、切断した布端を巻き込
みながら縁かがりする巻き縫いなどの細幅の縁かがり縫
いの２通りがある。2. Description of the Related Art An overlock sewing machine has a needle which has an upper thread and moves up and down, and an upper looper thread which is inserted into a thread hole at a tip end thereof. The looper and the lower looper having the lower looper thread cooperate to perform the overlock sewing. The seams of this type of overlock sewing machine include edge overlock sewing, in which the edge of the cloth cut with the upper knife and lower knife is kept flat, and winding sewing, in which the edge of the cut cloth is rolled while the edge of the cloth is wound. There are two types of narrow overcast.
【０００３】従来、縁かがりミシンでは、縁かがり縫い
のかがり幅は針板側にある爪の幅によって影響されるた
め、かがり幅を変えるには所望のかがり幅に適した幅の
爪を持つ針板に交換する煩わしい作業を伴っていた。Conventionally, in the overlock sewing machine, since the overlock width of the overlock sewing is affected by the width of the nail on the needle plate side, a needle having a nail having a width suitable for a desired overlock width is required to change the overlock width. It involved a cumbersome task of changing to a board.
【０００４】従来技術として、実開平７−３７０５０号
公報には、針板の針落ち部の布縁側に巻き縫い等の細幅
の縁かがりをする固定爪を持ち、針の上下動方向および
布送り方向と直交する水平方向に移動可能な下メス取付
台に、布送り方向に移動可能に取り付けられた移動爪を
有し、この移動爪を布送り方向手前に移動させ巻き縫い
を行い、前進させ縁かがり縫いを行い、かがり幅を下メ
ス台と一体的に動く移動爪の水平方向の移動により変化
させるオーバロックミシンの巻き縫い切替え装置が開示
されている。As a prior art, Japanese Utility Model Laid-Open Publication No. Hei 7-37050 discloses a technique in which a fixed claw that forms a narrow edge such as a winding stitch is provided at a needle edge portion of a needle drop portion of a needle plate to move the needle in the vertical movement direction and the cloth. The lower knife mount that can move in the horizontal direction perpendicular to the feed direction has a moving claw that is movably mounted in the cloth feed direction. There is disclosed a winding stitching switching device of an overlock sewing machine that performs an overlock sewing and changes an overlock width by moving a moving claw that moves integrally with a lower knife table in a horizontal direction.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来技
術において、縁かがり縫いのかがり幅の変更は、下メス
台を布送り方向と直交する水平方向に移動調節させ、こ
れにより移動爪および下メスが一体的に水平方向に移動
し、下メスと移動爪との相対位置は実質的に変動するこ
となく、被縫製物の切断位置を調節して、かがり幅を適
正に設定することができる、と記載されているが、布の
種類により切断時の伸縮等が生じ、切断した布縁とかが
り幅が一致せず、布縁とかがり糸との間に隙間Ａが生じ
たり（図１２）、かがった布縁が横縮みする（図１３）
不具合がある。However, in the prior art, the change in the overlock width of the overlock stitching is performed by moving the lower knife table in a horizontal direction orthogonal to the cloth feeding direction. It moves in the horizontal direction integrally, the relative position between the lower knife and the moving claw does not substantially fluctuate, the cutting position of the sewing object is adjusted, and the overlock width can be set appropriately. Although described, expansion and contraction at the time of cutting occurs depending on the type of cloth, the cut edge of the cloth does not match the overlock width, and a gap A occurs between the cloth edge and the overlock yarn (FIG. 12). Cloth edge shrinks horizontally (Fig. 13)
There is a defect.
【０００６】また図１２に示す隙間Ａをなくすために縫
い糸の張力を強くするなどし、図１３に示す布の横縮み
をなくすために縫い糸の張力を弱くするなどで対処して
いたが、糸締りむら、糸切れ、布縮みなどの新たな不具
合が生じている。In order to eliminate the gap A shown in FIG. 12, the tension of the sewing thread is increased, and the tension of the sewing thread is reduced to eliminate the lateral shrinkage of the cloth shown in FIG. New problems such as uneven tightening, thread breakage, and cloth shrinkage have occurred.
【０００７】本発明は上記課題を解決したもので、布縁
とかがり糸との間に隙間が生じたり布縁が横縮みせずに
かがり幅の変更が容易にできるオーバーロックミシンを
提供する。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an overlock sewing machine which can easily change the overlock width without forming a gap between the cloth edge and the overlock yarn and without laterally shrinking the cloth edge.
【０００８】[0008]
【課題を解決するための手段】上記技術的課題を解決す
るために、本発明の請求項１において講じた技術的手段
（以下、第１の技術的手段と称する。）は、上糸を有し
て上下動する針と、先端部の糸穴に挿通した上ルーパ糸
を有し被縫製物の布送り方向と交差状に作動する上ルー
パと、下ルーパ糸を有する下ルーパとが協動して縁かが
り縫いを行うオーバーロックミシンにおいて、ミシンフ
レームに取り付けられた針板と、該針板の針落ち部の布
端側に位置し、布送り方向と平行に針板に設けられた固
定爪と、ミシンフレームに設けられた移動調節機構によ
って前記針の上下動方向および布送り方向と直交する水
平方向に調節移動可能な下メス取付台が設けられ、該下
メス取付台には、被縫製物の不揃いな布縁を切断する下
メスと、布送り方向に摺動可能で、前端部に先端爪部を
有する移動爪と、該移動爪を布送り方向の任意の位置で
固定する位置固定手段が備えられていることを特徴とす
るオーバーロックミシンである。Means for Solving the Problems In order to solve the above technical problems, the technical means (hereinafter referred to as first technical means) taken in claim 1 of the present invention has an upper thread. The needle that moves up and down, the upper looper that has an upper looper thread inserted through the thread hole at the tip, and that operates in a direction crossing the cloth feed direction of the sewing object, and the lower looper that has the lower looper thread cooperate In an overlock sewing machine that performs overlock stitching, a needle plate attached to a sewing machine frame and a fixing member that is located on a cloth end side of a needle drop portion of the needle plate and is provided on the needle plate in parallel with the cloth feeding direction. A claw and a lower knife mount that can be adjusted and moved in a horizontal direction orthogonal to the vertical movement direction and the cloth feeding direction of the needle by a movement adjustment mechanism provided on the sewing machine frame are provided. Lower knife to cut uneven fabric edge of sewing material and cloth feeding method An overlock sewing machine, comprising: a movable claw slidable to a front end thereof, a movable claw having a front claw portion at a front end, and position fixing means for fixing the movable claw at an arbitrary position in a cloth feeding direction. .
【０００９】上記第１の技術的手段による効果は、以下
のようである。The effects of the first technical means are as follows.
【００１０】すなわち、下メス取付台に移動爪が備えら
れ、下メスと移動爪との相対位置が実質的に変動するこ
となく被縫製物の切断位置を調節できるので、かがり幅
を設定でき、かつ移動爪を布送り方向の任意の位置で固
定することができるので、縁かがり縫いのかがり幅を適
正に微調整することができるので、布縁とかがり糸との
間に隙間が生じたり布縁が横縮みせずにかがり幅の変更
を容易に行うことができる。That is, the lower knife mounting base is provided with a moving claw, and the cutting position of the workpiece can be adjusted without substantially changing the relative position between the lower knife and the moving claw. In addition, since the moving claw can be fixed at an arbitrary position in the cloth feeding direction, the overlock width of the overlock sewing can be finely adjusted appropriately. The overhang width can be easily changed without the edge shrinking laterally.
【００１１】上記技術的課題を解決するために、本発明
の請求項２において講じた技術的手段（以下、第２の技
術的手段と称する。）は、前記位置固定手段が、前記下
メス取付台に固定され前記移動爪側に付勢された位置決
め爪と、前記移動爪に設けられ前記位置決め爪と係合可
能な複数の溝部から構成されていることを特徴とする請
求項１記載のオーバーロックミシンである。In order to solve the above technical problem, a technical means (hereinafter referred to as a second technical means) taken in claim 2 of the present invention is that the position fixing means is such that the lower knife mounting 2. The over-position according to claim 1, comprising: a positioning claw fixed to a base and urged toward the moving claw side; and a plurality of grooves provided on the moving claw and capable of engaging with the positioning claw. It is a lock sewing machine.
【００１２】上記第２の技術的手段による効果は、以下
のようである。The effects of the second technical means are as follows.
【００１３】すなわち、位置決め爪と溝部という簡単な
構造で、移動爪を布送り方向の任意の位置で固定できる
ので、かがり幅を適正に変更できるオーバーロックミシ
ンを低価格で製造できる。That is, since the movable claw can be fixed at an arbitrary position in the cloth feeding direction with a simple structure including the positioning claw and the groove, an overlock sewing machine capable of appropriately changing the overlock width can be manufactured at a low cost.
【００１４】上記技術的課題を解決するために、本発明
の請求項３において講じた技術的手段（以下、第３の技
術的手段と称する。）は、前記位置固定手段が、前記下
メス取付台に固定され前記移動爪側に付勢された凸部
と、前記移動爪に設けられ前記位置決め爪と係合可能な
複数の穴部から構成されていることを特徴とする請求項
１記載のオーバーロックミシンである。In order to solve the above technical problem, the technical means (hereinafter referred to as third technical means) taken in claim 3 of the present invention is that the position fixing means is such that the lower knife mounting The projection according to claim 1, further comprising: a projection fixed to a base and urged toward the movable claw, and a plurality of holes provided on the movable claw and capable of engaging with the positioning claw. This is an overlock sewing machine.
【００１５】上記第３の技術的手段による効果は、以下
のようである。The effects of the third technical means are as follows.
【００１６】すなわち、請求項２と同様に、凸部と穴部
という簡単な構造で、移動爪を布送り方向の任意の位置
で固定できるので、かがり幅を適正に変更できるオーバ
ーロックミシンを低価格で製造できる。That is, as in the case of the second aspect, the movable claw can be fixed at an arbitrary position in the cloth feeding direction with a simple structure of the convex portion and the hole portion. Can be manufactured at a price.
【００１７】[0017]
【発明の実施の形態】以下、本発明の第１実施例につい
て、図１〜７を用いて説明する。図１は第１実施例のオ
ーバーロックミシンの正面図である。図２は第１実施例
のかがり幅調節機構を示す正面図で、図３はそのＥ部の
部分拡大正面図である。図４は第１実施例のかがり幅調
節機構を示す平面図で、図５はその部分拡大平面図であ
る。図６は第１実施例のかがり幅調節機構を示す右側面
図であり、図７は第１実施例のかがり幅調節機構を示す
左側面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of the overlock sewing machine according to the first embodiment. FIG. 2 is a front view showing the overlock width adjusting mechanism of the first embodiment, and FIG. 3 is a partially enlarged front view of a portion E thereof. FIG. 4 is a plan view showing the overlock width adjusting mechanism of the first embodiment, and FIG. 5 is a partially enlarged plan view thereof. FIG. 6 is a right side view showing the overlock width adjusting mechanism of the first embodiment, and FIG. 7 is a left side view showing the overlock width adjusting mechanism of the first embodiment.
【００１８】ミシンフレーム１のベッド部１ａには針板
２が取り付けられている。針板２上方のミシンフレーム
１のアーム部１ｂには、上糸を有して上下動する針３０
が取り付けられている。A needle plate 2 is attached to a bed 1a of the sewing machine frame 1. An arm 1b of the sewing machine frame 1 above the needle plate 2 has a needle 30 having an upper thread and moving up and down.
Is attached.
【００１９】針板２には針３０が上下動したとき、通過
可能な針落ち部２ａが設けられているとともに、被縫製
物を布送り方向（図４にＸ方向で示す）に送る図示しな
い送り歯が出没する送り歯用の長穴２ｂが設けられてい
る。先端部の糸穴に挿通した上ルーパ糸を有し被縫製物
の布送り方向と交差状に作動する上ルーパ３１と、下ル
ーパ糸を有する下ルーパ３２とが協動して縁かがり縫い
を行う。The needle plate 2 is provided with a needle drop portion 2a through which the needle 30 can pass when the needle 30 moves up and down, and also feeds the sewing material in the cloth feed direction (shown by the X direction in FIG. 4). An elongated hole 2b for a feed dog in which the feed dog appears and disappears is provided. An upper looper 31 having an upper looper thread inserted through a thread hole at a tip end thereof and operating in a direction crossing the cloth feeding direction of a sewing object, and a lower looper 32 having a lower looper thread cooperate to perform overlock stitching. Do.
【００２０】３は固定爪であり、針状の先端を布送り方
向に向けて針板２の針落ち部２ａに設けられている。固
定爪３は布送り方向と平行に延在し、その先端部３ａは
針落ち部２ａの布送り方向側の端に近接させて、その基
部３ｂは針落ち部２ａの布送り方向側と反対の端にあた
る針板２に固着されて設けられている。Reference numeral 3 denotes a fixed claw, which is provided at the needle drop portion 2a of the needle plate 2 with its needle-like tip directed in the cloth feeding direction. The fixed claw 3 extends in parallel with the cloth feeding direction, and its tip 3a is close to the end of the needle dropping section 2a on the cloth feeding direction side, and its base 3b is opposite to the needle dropping section 2a on the cloth feeding direction side. Is fixedly provided to the needle plate 2 at the end of the needle plate 2.
【００２１】針板２の下方には下メス取付台４が配置さ
れる。下メス取付台４は針３０の上下動方向および布送
り方向と直交する水平方向（ＢＣ方向）に調節移動可能
にミシンフレーム１に取り付けられている。すなわち、
下メス取付台４は、図２に示すように下メス取付台４に
固着されたスライド軸４ａをミシンフレーム１の上部ガ
イド穴１ｃに挿入し、ミシンフレーム１に対して水平方
向（ＢＣ方向）移動自在に支持されているとともに、座
付きねじ５とミシンフレーム１との間に圧縮させて挿入
したコイルスプリング６によって左方向（Ｃ方向）に付
勢されている。A lower knife mount 4 is arranged below the needle plate 2. The lower knife mount 4 is attached to the sewing machine frame 1 so as to be adjustable in a horizontal direction (BC direction) perpendicular to the vertical movement direction of the needle 30 and the cloth feeding direction. That is,
As shown in FIG. 2, the lower knife mounting base 4 inserts the slide shaft 4 a fixed to the lower knife mounting base 4 into the upper guide hole 1 c of the sewing machine frame 1, and the horizontal direction (BC direction) with respect to the sewing machine frame 1. It is movably supported and urged in the left direction (C direction) by a coil spring 6 that is compressed and inserted between the seat screw 5 and the sewing machine frame 1.
【００２２】また下メス取付台４は、その下部に設けら
れたガイド穴４ｂでかがり幅調節軸７と嵌合され、水平
方向移動自在に支持されている。かがり幅調節軸７は、
ミシンフレーム１にセットねじ８にて固着された軸受９
に回転自在に支持され、カム固定ねじ１２にてかがり幅
調節軸７に固着されたかがり幅調節カム１３、止め輪１
０およびワッシャー１１とによりスラスト止めされてい
る。かがり幅調節軸７のＢ方向の端部には、つまみ部７
ａが設けられている。The lower knife mounting base 4 is fitted to the overhang width adjusting shaft 7 by a guide hole 4b provided at its lower part, and is supported so as to be movable in the horizontal direction. The overlock width adjusting shaft 7
Bearing 9 fixed to sewing machine frame 1 with set screw 8
, Which is rotatably supported, and which is fixed to the overlock width adjusting shaft 7 with a cam fixing screw 12, the overlock width adjustment cam 13, the retaining ring 1
The thrust is stopped by the 0 and the washer 11. At the end of the overlock width adjusting shaft 7 in the B direction, a knob 7
a is provided.
【００２３】かがり幅調節カム１３には、Ｃ方向に付勢
された下メス取付台４の凸部４ｃに係合し、かがり幅調
節軸７の回動により下メス取付台４を水平方向に移動さ
せるカム１３ａを有している。The overhang width adjusting cam 13 is engaged with the convex portion 4c of the lower knife mounting base 4 urged in the direction C, and the lower knife mounting base 4 is horizontally moved by the rotation of the overlock width adjusting shaft 7. It has a cam 13a for moving.
【００２４】この下メス取付台４に設けられたスライド
軸４ａと凸部４ｃ、ミシンフレーム１に軸受９を介して
回転自在に支持されたかがり幅調節軸７などにより、下
メス取付台４を針３０の上下動方向および布送り方向と
直交する水平方向（ＢＣ方向）に調節移動させる水平移
動機構１４を構成している。The lower knife mounting table 4 is fixed to the lower knife mounting table 4 by a slide shaft 4a and a convex portion 4c provided on the lower knife mounting table 4 and an overhang width adjusting shaft 7 rotatably supported on the sewing machine frame 1 through a bearing 9. The horizontal movement mechanism 14 is configured to adjust and move the needle 30 in a vertical direction (BC direction) perpendicular to the vertical movement direction and the cloth feeding direction.
【００２５】下メス取付台４の上部には案内壁４ｄが設
けられ、複数の取付ねじ１５でＬ字状の移動爪取付板１
６が固着されている。これらの案内壁４ｄ、移動爪取付
板１６により移動爪１７が布送り方向に進退自在に保持
されている。下メス取付台４には、案内壁４ｄと退避壁
４ｅの間に開口部４ｆを形成し、移動爪１７の操作部１
７ｂを突出させ、操作部１７ｂに操作つまみ１８が固着
されている。A guide wall 4 d is provided on the upper portion of the lower knife mounting base 4, and the L-shaped movable claw mounting plate 1 is formed by a plurality of mounting screws 15.
6 is fixed. The movable claw 17 is held by the guide wall 4d and the movable claw mounting plate 16 so as to be able to advance and retreat in the cloth feeding direction. The lower knife mount 4 has an opening 4f formed between the guide wall 4d and the evacuation wall 4e.
7b is projected, and an operation knob 18 is fixed to the operation section 17b.
【００２６】なお、図４、５において、移動爪１７は実
線と二点鎖線で二重に図示されている。実線は移動爪１
７が最も前進した状態を示し、二点鎖線は移動爪１７が
最も後退した状態を示している。In FIGS. 4 and 5, the movable pawl 17 is shown by a solid line and a two-dot chain line. Solid line indicates moving claw 1
7 indicates a state in which the moving claw 17 is most advanced, and a two-dot chain line indicates a state in which the moving claw 17 is most retracted.
【００２７】移動爪取付板１６には弾性的に移動爪１７
側に付勢された位置決め爪１６ａが設けられている。一
方、移動爪１７には、その前進時に位置決め爪１６ａと
係合可能な複数の溝部である位置決め溝１７ｃが設けら
れている。この位置決め爪１６ａと位置決め溝１７ｃに
より、移動爪１７を布送り方向の任意の位置で固定する
位置固定手段が構成されている。The movable claw mounting plate 16 is elastically mounted on the movable claw 17.
A positioning claw 16a biased to the side is provided. On the other hand, the moving claw 17 is provided with a plurality of positioning grooves 17c which can be engaged with the positioning claw 16a when the moving claw 17 advances. The positioning claw 16a and the positioning groove 17c constitute a position fixing means for fixing the moving claw 17 at an arbitrary position in the cloth feeding direction.
【００２８】また移動爪１７には、その退避時に位置決
め爪１６ａと係合する位置決め溝１７ｄが設けられてい
る。下メス取付台４の位置決め爪１６ａに対向する位置
には干渉防止の凹部４ｇが設けられている。The movable claw 17 is provided with a positioning groove 17d which engages with the positioning claw 16a when retracted. A recess 4g for preventing interference is provided at a position of the lower knife mounting base 4 facing the positioning claw 16a.
【００２９】これらの構成により移動爪１７は任意の位
置に係止できる。なお位置決め爪１６ａを複数設けるな
どによりさらに微調整を可能とするもできる。With these configurations, the movable claw 17 can be locked at any position. Further, fine adjustment can be made possible by providing a plurality of positioning claws 16a.
【００３０】移動爪１７の前端部には、前方に水平に延
びる先端爪部１７ａを有し、先端爪部１７ａは、布送り
方向の前方に向けて次第に狭幅に形成されている。下メ
ス取付台４には、座付ねじ１９によって下メス２０が取
り付けられている。下メス２０は、図外の上メスと協動
して被縫製物の不揃いな布縁を切断し、被縫製物の布縁
を揃える機能を有する。At the front end of the moving claw 17, there is provided a tip claw 17a extending horizontally forward, and the tip claw 17a is formed to have a gradually narrower width toward the front in the cloth feeding direction. A lower knife 20 is attached to the lower knife mounting base 4 with a seat screw 19. The lower knife 20 has a function of cutting an uneven cloth edge of the sewing object in cooperation with an upper knife (not shown) and aligning the cloth edges of the sewing object.
【００３１】次に作用について説明する。縁かがり縫い
と巻き縫いの切り替え操作は、操作つまみ１８を把持
し、移動爪１７の先端爪部１７ａを布送り方向に前進さ
せて縁かがり状態とし、後方に退避させて巻き縫い状態
とする。Next, the operation will be described. The switching operation between the overlock sewing and the winding sewing is performed by gripping the operation knob 18 and advancing the tip claw portion 17a of the moving claw 17 in the cloth feeding direction to set the edge overlocking state, and retracting backward to set the winding sewing state.
【００３２】縁かがり縫いのかがり幅の変更は、つまみ
部７ａを把持してかがり幅調節軸１７に固着されたかが
り幅調節カム１３を正逆に回転させ、針３０の上下動方
向および布送り方向と直交する水平方向に下メス取付台
４を調節移動させる。これにより移動爪１７および下メ
ス２０が一体的に水平方向に移動し、移動爪１７と下メ
ス２０との相対位置は実質的には変動することなく、針
板２の針落ち部２ａと移動爪１７の先端爪部１７ａとの
間隔が増減される。To change the overlock width of the edge overlock stitching, the grip portion 7a is gripped and the overlock width adjustment cam 13 fixed to the overlock width adjustment shaft 17 is rotated in the forward and reverse directions to move the needle 30 up and down and the cloth feed. The lower knife mount 4 is adjusted and moved in a horizontal direction perpendicular to the direction. As a result, the moving claw 17 and the lower knife 20 move integrally in the horizontal direction, and the relative position between the moving claw 17 and the lower knife 20 does not substantially fluctuate and moves with the needle drop portion 2a of the needle plate 2. The distance between the claw 17 and the tip claw portion 17a is increased or decreased.
【００３３】更に移動爪１７の布送り方向位置を、位置
決め爪１６ａと位置決め溝１７ｃにて調節する。これに
より先端爪部１７ａは、布送り方向の前方に向けて次第
に狭幅に形成しているため、下メス２０と移動爪１７の
先端爪部１７ａとの相対位置が増減され、縁かがり縫い
のかがり幅を適正に微調整することができる。こうして
針板２を交換することなく、被縫製物の縁かがり縫いの
縫い目幅および下メス２０による被縫製物の切断位置を
調節し、布種に対応してかがり幅を適正に設定できる。Further, the position of the moving claw 17 in the cloth feeding direction is adjusted by the positioning claw 16a and the positioning groove 17c. As a result, the distal claw portion 17a is formed gradually narrower toward the front in the cloth feeding direction, so that the relative position between the lower knife 20 and the distal claw portion 17a of the movable claw 17 is increased or decreased, and the overlock sewing is performed. The overlock width can be finely adjusted appropriately. Thus, without changing the needle plate 2, the stitch width of the overlock stitch of the workpiece and the cutting position of the workpiece by the lower knife 20 can be adjusted, and the overlock width can be appropriately set according to the cloth type.
【００３４】図８はかがり幅調節機構の作用を説明する
部分平面図である。３０ａ、３０ｂは針３０が針落ち部
２ａを通過する針位置部である。１７ａ１は、布送り方
向に最も前進させた縁かがり状態の位置にある先端爪部
１７ａである。１７ａ４は、布送り方向に最も後退させ
た巻き縫い状態の位置にある先端爪部１７ａである。１
７ａ２、１７ａ３は位置決め爪１６ａと位置決め溝１７
ｃにて移動爪１７の布送り方向位置を調節された位置に
ある先端爪部１７ａである。FIG. 8 is a partial plan view for explaining the operation of the overlock width adjusting mechanism. Reference numerals 30a and 30b denote needle positions where the needle 30 passes through the needle drop portion 2a. Reference numeral 17a 1 denotes a tip claw portion 17a which is located at a position in an overcast state which is most advanced in the cloth feeding direction. Reference numeral 17a 4 denotes a tip claw portion 17a located at the position of the winding stitching state most retracted in the cloth feeding direction. 1
7a 2 and 17a 3 are positioning claws 16a and positioning grooves 17
The tip claw 17a is located at a position where the position of the moving claw 17 in the cloth feeding direction is adjusted at c.
【００３５】先端爪部位置１７ａ１、１７ａ２、１７ａ
３では、それぞれかがり幅Ａ１、Ａ２、Ａ３の縁かがり
縫いができる。こうして布種に対応してかがり幅を微調
整して適正に設定でき、布縁とかがり糸との間に隙間が
生じたり布縁が横縮みせずにかがり幅の変更が容易にで
きる。図１１は従来の先端爪部１７ａを固定する位置を
説明する部分平面図である。先端爪部１７ａは、先端爪
部位置１７ａ１と１７ａ４で固定できるだけである。こ
のため先端爪部位置１７ａ１でしか縁かがり縫いができ
ないので、かがり幅を微調整して適正に調節することは
できない。Tip nail position 17a 1 , 17a 2 , 17a
In the case of No. 3 , the overlock stitches of the overlock widths A1, A2, and A3 can be respectively performed. In this manner, the overlock width can be finely adjusted and appropriately set in accordance with the type of the cloth, and a change in the overlock width can be easily performed without forming a gap between the cloth edge and the overlock yarn or laterally shrinking the cloth edge. FIG. 11 is a partial plan view illustrating a position where the conventional tip claw portion 17a is fixed. Tip claw portion 17a can only be fixed at the tip claw portion position 17a 1 and 17a 4. Therefore, since it can not overlock stitch only at the tip claw portion position 17a 1, it can not be adjusted properly by fine adjustment of the darning width.
【００３６】本発明の第２実施例を図９、１０を用いて
説明する。図９は第２実施例のかがり幅調節機構を示す
平面図で、図１０は第２実施例のかがり幅調節機構を示
すＤＤ断面図である。第１実施例と同じ部位には同じ符
号を使用し、説明は省略する。A second embodiment of the present invention will be described with reference to FIGS. FIG. 9 is a plan view showing the overlock width adjusting mechanism of the second embodiment, and FIG. 10 is a DD sectional view showing the overlock width adjusting mechanism of the second embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
【００３７】下メス取付台４の上部には段付かしめピン
２２ａ、２２ｂにより移動爪２７が布送り方向に進退自
在に保持されている。すなわち、移動爪２７には二つの
長穴２３が設けられ、この長穴２３を介して段付かしめ
ピン２２ａ、２２ｂを下メス取付台４にかしめ固定して
いる。移動爪２７は長穴２３の長手方向に進退可能であ
るとともに、二つの長穴２３により進退方向がぶれるこ
とを防いでいる。A movable claw 27 is held on the upper portion of the lower knife mounting base 4 by stepped caulking pins 22a and 22b so as to be able to advance and retreat in the cloth feeding direction. That is, the moving claw 27 is provided with two long holes 23, and the stepped caulking pins 22 a and 22 b are caulked and fixed to the lower knife mounting base 4 through the long holes 23. The movable claw 27 can move forward and backward in the longitudinal direction of the long hole 23, and the two long holes 23 prevent the moving direction from moving.
【００３８】移動爪２７の前端部には、前方に水平に延
びる先端爪部２７ａを有し、先端爪部２７ａは、布送り
方向の前方に向けて次第に狭幅に形成されている。移動
爪２７の後端部には、布送り方向と直交する方向に下メ
ス取付台４から突出した操作部１７ｂを有し、操作部２
７ｂに操作つまみ２８が固着されている。The front end of the movable claw 27 has a tip claw 27a extending horizontally forward, and the tip claw 27a is formed to have a gradually narrower width toward the front in the cloth feeding direction. At the rear end of the moving claw 27, there is provided an operation section 17b protruding from the lower knife mount 4 in a direction orthogonal to the cloth feeding direction.
An operation knob 28 is fixed to 7b.
【００３９】移動爪２７の上部には、移動爪２７側に突
出した凸部２１ａを有する位置決め部材２１が設けられ
ている。位置決め部材２１は板バネで、段付かしめピン
２２ｂにより下メス取付台４に固定されている。位置決
め部材２１の凸部２１ａが設けられた側と反対の端部に
切欠部２１ｂが設けられている。この切欠部２１ｂは、
下メス取付台４に設けられた退避壁２４の突起部２４ａ
と係合し、位置決め部材２１の回転を防止している。A positioning member 21 having a convex portion 21a protruding toward the movable claw 27 is provided above the movable claw 27. The positioning member 21 is a leaf spring and is fixed to the lower knife mount 4 by a stepped caulking pin 22b. A notch 21b is provided at the end of the positioning member 21 opposite to the side where the protrusion 21a is provided. This notch 21b is
Projection 24a of retreat wall 24 provided on lower knife mounting base 4
To prevent the positioning member 21 from rotating.
【００４０】一方、移動爪２７には、その前進時に位置
決め部材２１の凸部２１ａと係合可能な複数の穴部であ
る位置決め穴２７ｃが設けられている。この位置決め部
材２１と位置決め穴２７ｃにより、移動爪２７を布送り
方向の任意の位置で固定する位置固定手段が構成されて
いる。これらの構成により移動爪２７は任意の位置に係
止できる。On the other hand, the movable claw 27 is provided with a plurality of positioning holes 27c which can be engaged with the projections 21a of the positioning member 21 when the movable claw 27 advances. The positioning member 21 and the positioning hole 27c constitute a position fixing means for fixing the moving claw 27 at an arbitrary position in the cloth feeding direction. With these configurations, the movable claw 27 can be locked at any position.
【００４１】なお、第２実施例では、凸部２１ａは移動
爪２７に貫通穴として設けられているが、溝のような形
状でも同様の効果を奏する。In the second embodiment, the convex portion 21a is provided as a through hole in the movable claw 27. However, the same effect can be obtained with a groove-like shape.
【００４２】[0042]
【発明の効果】以上のように、本発明は、上糸を有して
上下動する針と、先端部の糸穴に挿通した上ルーパ糸を
有し被縫製物の布送り方向と交差状に作動する上ルーパ
と、下ルーパ糸を有する下ルーパとが協動して縁かがり
縫いを行うオーバーロックミシンにおいて、ミシンフレ
ームに取り付けられた針板と、該針板の針落ち部の布端
側に位置し、布送り方向と平行に針板に設けられた固定
爪と、ミシンフレームに設けられた移動調節機構によっ
て前記針の上下動方向および布送り方向と直交する水平
方向に調節移動可能な下メス取付台が設けられ、該下メ
ス取付台には、被縫製物の不揃いな布縁を切断する下メ
スと、布送り方向に摺動可能で、前端部に先端爪部を有
する移動爪と、該移動爪を布送り方向の任意の位置で固
定する位置固定手段が備えられていることを特徴とする
オーバーロックミシンであるので、布縁とかがり糸との
間に隙間が生じたり布縁が横縮みせずにかがり幅の変更
が容易にできる。As described above, the present invention has a needle which has an upper thread and which moves up and down, and an upper looper thread which is inserted into a thread hole at a tip end thereof, and which has a shape crossing a cloth feeding direction of a sewing object. A needle plate attached to a sewing machine frame, and a cloth end of a needle drop portion of the needle plate in an overlock sewing machine in which an upper looper that operates at a time and a lower looper having a lower looper thread cooperate to perform overlock sewing. Side, and can be adjusted and moved in the vertical direction of the needle and in the horizontal direction orthogonal to the cloth feeding direction by a fixed claw provided on the needle plate parallel to the cloth feeding direction and a movement adjusting mechanism provided on the sewing machine frame. A lower knife mounting table is provided, the lower knife mounting table has a lower knife that cuts an uneven cloth edge of a sewing object, and a movable member that is slidable in the cloth feeding direction and has a tip claw portion at a front end portion. Claw and a position fixing hand for fixing the moving claw at an arbitrary position in the cloth feeding direction Since in overlock sewing machine, characterized in that is provided, changes overlock width without shrinkage lateral cloth edge or a gap between the thread overlock and cloth edge can be easily.
【図１】第１実施例のオーバーロックミシンの正面図FIG. 1 is a front view of an overlock sewing machine according to a first embodiment.
【図２】第１実施例のかがり幅調節機構を示す正面図FIG. 2 is a front view showing the overlock width adjusting mechanism of the first embodiment.
【図３】第１実施例のかがり幅調節機構のＥ部の部分拡
大正面図FIG. 3 is a partially enlarged front view of a portion E of the overlock width adjusting mechanism of the first embodiment.
【図４】第１実施例のかがり幅調節機構を示す平面図FIG. 4 is a plan view showing the overlock width adjusting mechanism of the first embodiment.
【図５】第１実施例のかがり幅調節機構の部分拡大平面
図FIG. 5 is a partially enlarged plan view of the overlock width adjusting mechanism of the first embodiment.
【図６】第１実施例のかがり幅調節機構を示す右側面図FIG. 6 is a right side view showing the overlock width adjusting mechanism of the first embodiment.
【図７】第１実施例のかがり幅調節機構を示す左側面図FIG. 7 is a left side view showing the overlock width adjusting mechanism of the first embodiment.
【図８】かがり幅調節機構の作用を説明する部分平面図FIG. 8 is a partial plan view for explaining the function of the overlock width adjusting mechanism.
【図９】第２実施例のかがり幅調節機構を示す平面図FIG. 9 is a plan view showing an overlock width adjusting mechanism according to a second embodiment.
【図１０】第２実施例のかがり幅調節機構を示すＤＤ断
面図FIG. 10 is a DD sectional view showing an overlock width adjusting mechanism according to the second embodiment.
【図１１】従来の先端爪部を固定する位置を説明する部
分平面図FIG. 11 is a partial plan view illustrating a position where a conventional tip claw portion is fixed.
【図１２】従来技術の不具合（隙間）が生じた縁かがり
状態を説明する説明図。FIG. 12 is an explanatory view illustrating an overcast state in which a defect (gap) of the related art has occurred.
【図１３】従来技術の不具合（横縮み）が生じた縁かが
り状態を説明する説明図。FIG. 13 is an explanatory diagram illustrating an overcast state in which a defect (lateral shrinkage) of the related art has occurred.
１…ミシンフレーム ２…針板 ２ａ…針落ち部 ３…固定爪 ４…下メス取付台 １４…水平移動機構（移動調節機構） １６ａ…位置決め爪（位置固定手段） １７…移動爪 １７ａ…先端爪部 １７ｃ…位置決め溝（溝部）（位置固定手段） ２０…下メス ２１…位置決め部材（位置固定手段） ２１ａ…凸部 ２７ａ…先端爪部 ２７ｃ…位置決め穴（穴部）（位置固定手段） ３０…針 ３１…上ルーパ ３２…下ルーパ DESCRIPTION OF SYMBOLS 1 ... Sewing machine frame 2 ... Needle plate 2a ... Needle drop part 3 ... Fixed claw 4 ... Lower knife mounting base 14 ... Horizontal movement mechanism (movement adjustment mechanism) 16a ... Positioning claw (position fixing means) 17 ... Moving claw 17a ... Tip claw Part 17c: Positioning groove (groove) (position fixing means) 20: Lower knife 21: Positioning member (position fixing means) 21a: Convex part 27a: Tip claw part 27c: Positioning hole (hole) (position fixing means) 30: Needle 31 ... Upper looper 32 ... Lower looper
Claims (3)
糸穴に挿通した上ルーパ糸を有し被縫製物の布送り方向
と交差状に作動する上ルーパと、下ルーパ糸を有する下
ルーパとが協動して縁かがり縫いを行うオーバーロック
ミシンにおいて、ミシンフレームに取り付けられた針板
と、該針板の針落ち部の布端側に位置し、布送り方向と
平行に針板に設けられた固定爪と、ミシンフレームに設
けられた移動調節機構によって前記針の上下動方向およ
び布送り方向と直交する水平方向に調節移動可能な下メ
ス取付台が設けられ、該下メス取付台には、被縫製物の
不揃いな布縁を切断する下メスと、布送り方向に摺動可
能で、前端部に先端爪部を有する移動爪と、該移動爪を
布送り方向の任意の位置で固定する位置固定手段が備え
られていることを特徴とするオーバーロックミシン。A needle which has an upper thread and which moves up and down, an upper looper which has an upper looper thread inserted through a thread hole at a tip end thereof, and which operates in a direction crossing a cloth feeding direction of a sewing object; and a lower looper. In an overlock sewing machine in which a lower looper having a thread cooperates with an overlock sewing operation, a needle plate attached to a sewing machine frame and a needle end portion of the needle plate located on a cloth end side, and a cloth feeding direction. A fixed claw provided on the needle plate in parallel, and a lower knife mounting base that can be adjusted and moved in a horizontal direction orthogonal to the vertical movement direction and the cloth feeding direction of the needle by a movement adjustment mechanism provided on the sewing machine frame is provided, The lower knife mounting table has a lower knife that cuts an uneven cloth edge of a workpiece, a moving claw that is slidable in the cloth feeding direction and has a front claw portion at a front end portion, and a moving claw that feeds the moving claw. It is characterized in that a position fixing means for fixing at any position in the direction is provided. Overlock sewing machine to be a feature.
に固定され前記移動爪側に付勢された位置決め爪と、前
記移動爪に設けられ前記位置決め爪と係合可能な複数の
溝部から構成されていることを特徴とする請求項１記載
のオーバーロックミシン。2. The method according to claim 1, wherein the position fixing means includes a positioning claw fixed to the lower knife mount and urged toward the moving claw, and a plurality of grooves provided on the moving claw and capable of engaging with the positioning claw. The overlock sewing machine according to claim 1, wherein the overlock sewing machine is configured.
に固定され前記移動爪側に突出し前記移動爪側に付勢さ
れた凸部を有する位置決め部材と、前記移動爪に設けら
れ前記凸部と係合可能な複数の穴部から構成されている
ことを特徴とする請求項１記載のオーバーロックミシ
ン。3. A positioning member fixed to the lower knife mounting base and having a projection protruding toward the moving claw side and urged toward the moving claw side, the positioning member being provided on the moving claw. 2. The overlock sewing machine according to claim 1, wherein the overlock sewing machine includes a plurality of holes that can be engaged with the portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000163104A JP2001340674A (en) | 2000-05-31 | 2000-05-31 | Overedging industrial sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000163104A JP2001340674A (en) | 2000-05-31 | 2000-05-31 | Overedging industrial sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001340674A true JP2001340674A (en) | 2001-12-11 |
Family
ID=18666915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000163104A Pending JP2001340674A (en) | 2000-05-31 | 2000-05-31 | Overedging industrial sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001340674A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118451A (en) * | 2016-11-29 | 2018-06-05 | 深圳市德业智能股份有限公司 | A kind of sewing device |
-
2000
- 2000-05-31 JP JP2000163104A patent/JP2001340674A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118451A (en) * | 2016-11-29 | 2018-06-05 | 深圳市德业智能股份有限公司 | A kind of sewing device |
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