JP3045242B2 - Scoop sewing machine - Google Patents

Scoop sewing machine

Info

Publication number
JP3045242B2
JP3045242B2 JP2077204A JP7720490A JP3045242B2 JP 3045242 B2 JP3045242 B2 JP 3045242B2 JP 2077204 A JP2077204 A JP 2077204A JP 7720490 A JP7720490 A JP 7720490A JP 3045242 B2 JP3045242 B2 JP 3045242B2
Authority
JP
Japan
Prior art keywords
cloth
needle
sewing
drive shaft
looper
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.)
Expired - Fee Related
Application number
JP2077204A
Other languages
Japanese (ja)
Other versions
JPH03275096A (en
Inventor
幸介 柚山
誠 鑓水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Manufacturing Co Ltd
Original Assignee
Suzuki Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzuki Manufacturing Co Ltd filed Critical Suzuki Manufacturing Co Ltd
Priority to JP2077204A priority Critical patent/JP3045242B2/en
Publication of JPH03275096A publication Critical patent/JPH03275096A/en
Application granted granted Critical
Publication of JP3045242B2 publication Critical patent/JP3045242B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、掬い縫いミシンに係わり、特に、縫い針を
直針で形成し、製造が容易であり、使用される布の厚さ
に応じて布を支持し、掬い深さの調節や跳び縫いが可能
で、目とびを防止し、縫いを真っ直ぐに維持し、糸切り
を備え、製造にあたっては経済的な、この種の掬い縫い
ミシンの改良に関する。
Description: TECHNICAL FIELD The present invention relates to a scoop sewing machine, and particularly to a sewing needle formed by straight needles, which is easy to manufacture and which is suitable for the thickness of the cloth used. It is possible to adjust the depth of scooping and jump stitching, prevent skipping, keep sewing straight, equipped with thread trimming, and is economical in manufacturing. Regarding improvement.

[従来の技術] 掬い縫いミシンとしては、曲針を用いたものが知られ
ている(特公昭39−28960号公報、特公昭43−26076号公
報、特公昭45−20026号公報、特公昭45−23980号公報、
特公昭45−37268号公報、特開昭58−105786号公報、USP
3760747、3986469、4043284、4416207)。
[Prior Art] A scoop sewing machine using a curved needle is known (JP-B-39-28960, JP-B-43-26076, JP-B-45-20026, JP-B-45). No. -23980,
JP-B-45-37268, JP-A-58-105786, USP
3760747, 3986469, 4043284, 4416207).

この掬い縫いミシンは、駆動軸と、駆動軸により円弧
状に往復駆動される針および該針と針糸との関係でやや
往復楕円運動で楕円の両端で反転される駆動が与えられ
るルーパと、布を挟み込む針板および押え金と、針板に
穿設された開口を通して布を突上げる布上げ部材と、突
上げられた布を押える布押え部材とを備えており、曲針
を突上げられた布部分に円弧状に突き刺してルーパとの
協働により針糸をルーパで捕捉し、曲針を捕捉された針
糸に絡げて単糸環縫による掬い縫いを行なうものであ
る。
This scooping sewing machine has a drive shaft, a needle reciprocally driven in an arc shape by the drive shaft, and a looper provided with a drive reversing at both ends of the ellipse in a slightly reciprocating elliptical motion in a relationship between the needle and the needle thread, A needle plate and a presser foot for sandwiching the cloth, a cloth lifting member for pushing up the cloth through an opening formed in the needle plate, and a cloth presser member for pressing the pushed up cloth, are provided. The needle portion is pierced in an arc shape into the cloth portion, and the needle thread is captured by the looper in cooperation with the looper, and the curved needle is entangled with the captured needle thread to perform the scooping by single thread ring sewing.

第15図に示すように、このような曲針301は、針全体
が円弧状を呈しており、針先302が布上げ部材(図示せ
ず)の突尖状の先端との間隙が一定になるように針先尖
頭が針幹303の中心線より円弧外方304に偏芯して作ら
れ、この円弧に向って尖っているので、針が布に抵抗な
く突き刺ささり易いという利点がある。
As shown in FIG. 15, in such a curved needle 301, the whole needle has an arc shape, and the gap between the needle tip 302 and the pointed tip of the cloth-raising member (not shown) is constant. The tip of the needle is formed eccentrically to the outer side of the arc 304 from the center line of the needle stem 303 so that the needle is sharpened toward this arc, so that there is an advantage that the needle is easily pierced into the cloth without resistance. .

しかしながら、その反面、製造が極めて面倒であり、
かつ針の精度上のバラツキが起こりやすく、通常の家庭
用ミシンの直針に比較して約5倍程度高価になるという
欠点がある。また、針が曲針であるため針が布に突き刺
さるとき貫通力が弱く不安定であり、掬い縫い作業中に
変形して縫い斑を惹起して縫製品の品質を低下させた
り、曲針の針先が傷み易く針交換を屡々しなければなら
ず、高度な縫製技量を要し、熟練した者でないと充分な
掬い縫い作業ができにくく、品質の高い縫製品を作るに
は針管理に深い注意を払わなければならないという難点
がある。
However, on the other hand, production is extremely troublesome,
In addition, there is a disadvantage that the accuracy of the needle is apt to vary, and it is about five times as expensive as a straight needle of an ordinary household sewing machine. In addition, since the needle is a curved needle, the penetrating force is weak and unstable when the needle pierces the cloth, which deforms during scooping and stitches to cause stitch spots, lowering the quality of the sewn product, Needle replacement is frequent because the needle tip is easily damaged.It requires a high level of sewing skills, and it is difficult for a skilled person to perform sufficient scooping and stitching work. The drawback is that you have to pay attention.

上記難点を解決すべく、針が直針(通常の家庭用ミシ
ンの低廉な縫針)で形成され、製造が容易な掬い縫いミ
シンおよび掬い縫い方法が、本出願人により提案されて
いる(特願昭63−231355号)。この掬い縫いミシンは、
針が直針で形成され、製造が容易であり、掬い縫い作業
中に変形せず掬い斑のない美麗な高品質の縫製品を製成
でき、針先が傷むことなく、高度な縫製技量は不要で、
未熟者でも容易に掬い縫い作業ができ、針管理には通常
の家庭用ミシンと同じ程度の注意を払えばよいという利
点がある。
In order to solve the above difficulties, the present applicant has proposed a scooping sewing machine and a scooping sewing method in which the needle is formed of a straight needle (an inexpensive sewing needle of an ordinary household sewing machine) and which is easy to manufacture (Japanese Patent Application No. 2002-214568). No. 63-231355). This scoop sewing machine
The needle is formed by straight needle, easy to manufacture, can produce beautiful high-quality sewing products without deformation during scooping and without scooping spots, without damaging the needle tip, advanced sewing skills Unnecessary
Even an inexperienced person can easily carry out scooping and stitching, and has the advantage that the needle management need only be paid to the same degree of care as a normal household sewing machine.

[発明が解決しようとする課題] ところで、この掬い縫いミシンにおいて、挿入時また
は縫い始めの位置決めが容易で、掬い深さの調節や跳び
縫いが可能で、目とびが防止され、縫いが真っ直ぐに維
持され、糸切りを備えて縫い作業性が優れ、製造にあた
っては経済的な掬い縫いミシンが望まれていた。
[Problems to be Solved by the Invention] By the way, in this scooping sewing machine, positioning at the time of insertion or at the start of sewing is easy, adjustment of scooping depth and jump stitching are possible, skipping is prevented, and sewing is straightened. A scoop sewing machine which is maintained, has thread trimming, has excellent sewing workability, and is economical in production has been desired.

[発明の目的] 上記の要望に鑑み、本発明は、挿入時または縫い始め
の位置決めが容易で、掬い深さの調節や跳び縫いが可能
で、目とびを防止し、縫いを真っ直ぐに維持し、糸切り
を備え、製造にあたっては経済的な掬い縫いミシンを提
供せんとするものである。
[Object of the Invention] In view of the above demands, the present invention facilitates positioning at the time of insertion or at the start of sewing, enables adjustment of scooping depth and jump stitching, prevents skipping, and maintains sewing straight. The present invention is intended to provide a scoop sewing machine which is economical in production and has thread trimming.

[課題を解決するための手段] このような目的を達成するために、本発明の掬い縫い
ミシンによれば、本体フレームに軸支された駆動軸と、
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、針板に穿設された開口を通
して布を突上げる布上げ部材と、突上げられた布を押え
る布押え部材とを備えて針を突上げられた布部分に突き
刺して前記ルーパとの協働により単糸環縫による掬い縫
いを行なう掬い縫いミシンにおいて、針を直針で形成す
ると共に、押え金を枢着し且つ布上げ部材を備えたシリ
ンダ本体が、駆動軸と平行に摺動自在に枢着部で本体フ
レームに枢着され、枢着部を、駆動軸と前記シリンダ本
体の中間点より駆動軸近傍に設けたものである。
[Means for Solving the Problems] In order to achieve such an object, according to the scooping sewing machine of the present invention, a drive shaft pivotally supported by a main body frame;
A needle and a looper respectively driven by a drive shaft, a needle plate and a presser for sandwiching the cloth, a cloth lifting member for pushing up the cloth through an opening formed in the needle plate, and a cloth holding member for pressing the pushed up cloth. In a scoop sewing machine that performs a scoop sewing by a single thread chain stitch in cooperation with the looper by piercing a needle into a pushed-up cloth portion with a stitch, forming a needle with a straight needle and pivoting a presser foot. And a cylinder body provided with a cloth lifting member is slidably mounted on the main body frame at a pivot portion so as to be slidable in parallel with the drive shaft, and the pivot portion is located closer to the drive shaft than an intermediate point between the drive shaft and the cylinder body. It is provided in.

本発明の掬い縫いミシンによれば、枢着部およびシリ
ンダ本体を連結部材で連結し、この連結部材に針板およ
び押え金間を複数段に開隔するインデックス手段を設け
たものである。
ADVANTAGE OF THE INVENTION According to the scoop sewing machine of this invention, a pivoting part and a cylinder main body are connected with a connection member, and this connection member is provided with the index means which separates between a needle plate and a presser foot in a plurality of steps.

本発明の掬い縫いミシンによれば、針を直針で形成す
ると共に、布上げ部材を備えたシリンダ本体に、布上げ
部材を回転させる布上げ軸を軸支し、駆動軸と布上げ軸
を2:1の減速比で連結し、布上げ軸で回転される布上げ
部材を、外周上に対称的に配設され直針が布に突き刺さ
るとき迄布を突き上げるタイミング位置を与える第1、
第2の突尖で形成し、第1、第2の突尖の一方を他方よ
り周方向に所定量長く形成し、駆動軸に対して布上げ軸
を前記周方向に所定量だけ余分に半回転させて記タイミ
ング位置を第1、第2の突尖の一方より他方が突き上げ
量を少なくする跳び縫い位置に切換える切換手段を設け
たものである。
According to the scooping sewing machine of the present invention, the needles are formed by straight needles, and a cloth lifting shaft for rotating the cloth raising member is supported on the cylinder body having the cloth raising member, and the drive shaft and the cloth raising shaft are connected to each other. The first, which is connected at a reduction ratio of 2: 1 and provides a timing position where the cloth lifting member rotated by the cloth raising shaft is symmetrically arranged on the outer periphery and is pushed up until the straight needle pierces the cloth.
One of the first and second prongs is formed to be longer than the other by a predetermined amount in the circumferential direction, and the cloth-raising shaft is extended by a predetermined amount in the circumferential direction with respect to the drive shaft. A switching means is provided for switching the recording timing position to a jumping sewing position in which the other of the first and second protruding points makes the thrust amount smaller than that of the first and second protruding points.

本発明の掬い縫いミシンによれば、本体フレームに軸
支された駆動軸と、駆動軸により夫々駆動される針およ
びルーパと、布を挟み込む針板および押え金と、針板に
穿設された開口を通して布を突上げる布上げ部材と、突
上げられた布を押える布押え部材と、布押え部材を弾撥
する布押えばねと備えて針を突上げられた布部分に突き
刺して前記ルーパとの協働により単糸環縫による掬い縫
いを行なう掬い縫いミシンにおいて、針を直針で形成す
ると共に、押え金を枢着し且つ布上げ部材を備えたシリ
ンダ本体が、駆動軸と平行に揺動自在に枢着部で本体フ
レームに枢着され、シリンダ本体を、押え金が針板に押
圧される方向に弾撥するシリンダばねを設け、布の厚さ
に応じシリンダばねに抗して布上げ部材を布の厚さ方向
に進退させる布押えストッパーを設け、かつ、布押え部
材は左右布押え部材から形成され、薄地縫いの場合は左
布押え部材により、中厚地より厚い縫いの場合は記右布
押え部材により、布上げ部材によって突き上げられた布
部分を保持する方向に前記布押えばねが弾撥するたもの
である。
According to the scooping sewing machine of the present invention, the drive shaft pivotally supported by the main body frame, the needle and the looper respectively driven by the drive shaft, the needle plate and the presser holding the cloth, and the needle plate are provided. A cloth lifting member for pushing up the cloth through the opening, a cloth holding member for holding the pushed up cloth, and a cloth holding spring for repelling the cloth holding member; In a scoop sewing machine that performs scoop sewing by single-thread chain stitching in cooperation with a sewing machine, a needle body is formed with a straight needle, and a cylinder body that pivots a presser foot and has a cloth lifting member swings in parallel with the drive shaft. A cylinder spring movably pivotally attached to the body frame at a pivoting portion, and a cylinder spring is provided for repelling the cylinder body in a direction in which the presser foot is pressed against the needle plate. Cloth presser that moves the lifting member back and forth in the thickness direction of the cloth A topper is provided, and the presser foot member is formed from left and right presser members, and is pushed up by the left presser member in the case of thin fabric sewing, and by the right presser member in the case of sewing thicker than medium-thick fabric, by the fabric lifting member. The cloth holding spring is repelled in a direction for holding the cloth portion.

本発明の掬い縫いミシンによれば、針を直針で形成す
ると共に、針板に穿設された開口に、直針の進入を案内
し、かつ布上げ部材によって突上げられた布を直針が貫
通抵抗により直針の進入方向に伴送されるのを防止する
防護部材を設けたものである。
ADVANTAGE OF THE INVENTION According to the scoop sewing machine of this invention, while forming a needle with a straight needle, guide the approach of a straight needle to the opening perforated in the needle plate, Is provided with a protection member for preventing the feed through of the straight needle due to penetration resistance.

本発明の掬い縫いミシンによれば、本体フレームに軸
支された駆動軸と、駆動軸により夫々駆動される針およ
びルーパと、布を挟み込む針板および押え金と、針板に
穿設された開口を通して布を突上げる布上げ部材と、突
上げられた布を押える布押え部材と、開口内を楕円運動
し布を縫い方向に送る送り歯とを備えて針を突上げられ
た布部分に突き刺して前記ルーパとの協働により単糸環
縫による掬い縫いを行なう掬い縫いミシンにおいて、針
を直針で形成すると共に、送り歯は、布の拡がり方向
の、布の身頃側が布の裾上げ側に比べて布に向って突出
しているものである。
According to the scooping sewing machine of the present invention, the drive shaft pivotally supported by the main body frame, the needle and the looper respectively driven by the drive shaft, the needle plate and the presser holding the cloth, and the needle plate are provided. A cloth lifting member that pushes up the cloth through the opening, a cloth presser member that presses the cloth that has been pushed up, and a feed dog that has an elliptical motion in the opening and feeds the cloth in the sewing direction, and the needle is pushed up to the cloth portion. In a scoop sewing machine that pierces and cooperates with the looper to perform scoop sewing by single thread chain stitching, a needle is formed by a straight needle, and a feed dog has a cloth hem in a body side in a spreading direction of the cloth. It protrudes toward the cloth as compared to the side.

本発明の掬い縫いミシンによれば、針を直針で形成す
ると共に、縫い終了時に縫製物を縫い方向と逆方向に引
出すことにより、ルーパに捕捉された縫い糸を切断する
メスを開口の布の身頃側に設けたものである。
According to the scooping sewing machine of the present invention, a needle for forming a needle with a straight needle and pulling out a sewing product in a direction opposite to a sewing direction at the end of sewing, thereby cutting a sewing thread captured by a looper with a scalpel of an opening cloth. It is provided on the body side.

本発明の掬い縫いミシンによれば、本体フレームに軸
支された駆動軸と、駆動軸により夫々駆動される針並び
に縫い糸を捕捉する剣先、および剣先によって捕捉され
た縫い糸にループを形成して針にループになった縫い糸
をからげる小爪を有するルーパと、布を挟み込む針板お
よび押え金と、針板に穿設された開口を通して布を突上
げる布上げ部材と、突上げられた布を押える布押え部材
とを備えて針を突上げられた布部分に突き刺してルーパ
との協働により単糸環縫による掬い縫いを行なう掬い縫
いミシンにおいて、針を直針で形成すると共に、ルーパ
は、その小爪を軟質材料で形成し、剣先を硬質材料で形
成して取外し自在に小爪に取着したものである。
ADVANTAGE OF THE INVENTION According to the scooping sewing machine of this invention, the drive shaft pivotally supported by the main body frame, the needle driven by the drive shaft and the sword tip which catches a sewing thread, and the needle which forms a loop on the sewing thread captured by the sword tip A looper having a small claw for threading a looped sewing thread, a needle plate and a presser foot for sandwiching the cloth, a cloth raising member for raising the cloth through an opening formed in the needle plate, and a cloth raised In a scoop sewing machine that includes a cloth presser member that presses a needle, the needle is pierced into the pushed-up cloth portion and cooperates with a looper to perform scoop sewing by single thread chain stitching. In the Japanese Patent Application Laid-Open No. H11-260, the small nail is formed of a soft material, the point of the sword is formed of a hard material, and is detachably attached to the small nail.

本発明の掬い縫いミシンによれば、針を直針で形成す
ると共に、駆動軸と直針との間に布の拡がり方向に並行
で縫い方向に交叉して少なくとも縫いを行なうときに直
針に直線往復運動を与える駆動機構を設け、この駆動機
構はボールと、このボールをOリングを介して包むソケ
ットとから成るユニバーサルジョイントを有するもので
ある。
According to the scooping sewing machine of the present invention, the needle is formed with a straight needle, and at the time of performing at least the sewing while intersecting in the sewing direction in parallel with the spreading direction of the cloth between the drive shaft and the straight needle, the needle is formed with the straight needle. A drive mechanism for providing a linear reciprocating motion is provided, and the drive mechanism has a universal joint including a ball and a socket that wraps the ball through an O-ring.

[発明の実施例] 以下、本発明による掬い縫いミシンの一実施例を図面
に従って詳述する。
Hereinafter, an embodiment of a scoop sewing machine according to the present invention will be described in detail with reference to the drawings.

第1図に示されるように、本発明による掬い縫いミシ
ンの外観は、本体ベース14上に固定された本体フレーム
1に、後述の各種機構が搭載され、フレームカバー12、
上面カバー15、針板カバー16、シリンダカバー17により
カバーされている。更に、取手19、掬い調節ダイヤル76
d、送り調節ダイヤル42、糸調子つまみ81、押え上げレ
バー75a、プーリー24と一体的に形成されているプーリ
ーグリップ24′等が、それらカバーの外面から操作出来
るよう取り付けられ、後方の糸立台18には、糸巻受け18
a、糸立棒18b、糸案内棒18cが取り付けられ、本体ベー
ス14は防振ゴム14aにより防振されている。
As shown in FIG. 1, the scoop sewing machine according to the present invention has an external appearance in which various mechanisms described below are mounted on a main body frame 1 fixed on a main body base 14, and a frame cover 12,
It is covered by a top cover 15, a needle plate cover 16, and a cylinder cover 17. Furthermore, handle 19, scoop adjustment dial 76
d, a feed adjusting dial 42, a thread tension knob 81, a presser lifting lever 75a, a pulley grip 24 'formed integrally with the pulley 24, etc. are attached so that they can be operated from the outer surface of the cover. 18 has a bobbin receiver 18
a, a thread standing bar 18b, and a thread guiding rod 18c are attached, and the main body base 14 is vibration-proofed by a vibration-proof rubber 14a.

本発明による掬い縫いミシンの基本的な構造は、第2
図、第3図、第4図および第5図に示されるように、本
体フレーム1に軸支された駆動軸21と、駆動軸21により
夫々駆動される針3およびルーパ5と、布9(第11図、
第12図)を挟み込む針板6および押え金79と、針板6に
穿設された開口62を通して布9を突上げる布上げ部材73
と、突上げられた布9を押える布押え部材63a、63bとを
備えて針3を突上げられた布部分に突き刺してルーパ5
との協働により単糸環縫による掬い縫いを行なう掬い縫
いミシンにおいて、針3が直針で形成されている。
The basic structure of the scoop sewing machine according to the present invention is as follows.
As shown in FIG. 3, FIG. 3, FIG. 4 and FIG. 5, the drive shaft 21 supported by the main body frame 1, the needle 3 and the looper 5 respectively driven by the drive shaft 21, and the cloth 9 ( FIG. 11,
12) which sandwiches the needle plate 6 and the presser foot 79, and a cloth lifting member 73 which pushes up the cloth 9 through the opening 62 formed in the needle plate 6.
And a cloth holding member 63a, 63b for holding the pushed-up cloth 9 and piercing the needle 3 into the pushed-up cloth portion to form a looper 5.
The needle 3 is formed by a straight needle in a scoop sewing machine that performs scoop sewing by single thread chain stitching in cooperation with the above.

第2図に示されるように、掬い縫いミシンの駆動軸21
はその一端がモーター2に連結されたモータープーリー
22からVベルト23により回転駆動されるプーリー24のプ
ーリーグリップ24′の反対側に形成された小歯車24″に
よって駆動される駆動軸歯車29に固定されている。駆動
軸21の他端は、直針3を往復直線運動させる機構を介し
て直針3に連結されている。また、駆動軸21の他端は、
ルーパ5に楕円の両端で反転される駆動を与える機構を
介してルーパ5に連結されている。
As shown in FIG. 2, the drive shaft 21 of the scoop sewing machine
Is a motor pulley whose one end is connected to the motor 2.
22 is fixed to a drive shaft gear 29 driven by a small gear 24 "formed on the opposite side of a pulley grip 24 'of a pulley 24 rotated by a V-belt 23. The other end of the drive shaft 21 is The other end of the drive shaft 21 is connected to the straight needle 3 via a mechanism for causing the straight needle 3 to reciprocate linearly.
The looper 5 is connected to the looper 5 via a mechanism that gives a drive that is inverted at both ends of the ellipse.

第5図に示されるように、シリンダ上カバー17a、シ
リンダ下カバー17bの内部には、シリンダ7本体が設け
られている。また、シリンダ本体7の一端には、左右1
対に分割された押え土台79bが取り付けられている。こ
の押え土台79bは押え金79を枢着し、布9を針板6と押
え金79との間に挟み込む方向に押えばね79aにより弾撥
されている。さらに、針板6に穿設された開口62を通し
て布9を突上げる布上げ部材73が備えられている。
As shown in FIG. 5, a cylinder 7 main body is provided inside the cylinder upper cover 17a and the cylinder lower cover 17b. One end of the cylinder body 7 has
A holding base 79b divided into pairs is attached. The presser foot 79b pivotally holds the presser foot 79, and is repelled by a presser spring 79a in a direction in which the cloth 9 is sandwiched between the needle plate 6 and the presser foot 79. Further, a cloth lifting member 73 that pushes up the cloth 9 through an opening 62 formed in the needle plate 6 is provided.

第4図に示されるように、針板カバー16の下には、針
板6が本体フレーム1に装架され、布上げ部材73により
突上げられた布部分9を押える布押え部材63a、63bとが
備えられている。
As shown in FIG. 4, under the needle plate cover 16, the needle plate 6 is mounted on the main body frame 1, and the cloth holding members 63a and 63b press the cloth portion 9 pushed up by the cloth raising member 73. And are provided.

第3図に示されるように、本発明による掬い縫いミシ
ンには、駆動軸21と針3との間に布9の拡がり方向に並
行で縫い方向に交叉して少なくとも縫いを行なうときに
直針3に直線往復運動を与える駆動機構が設けられてい
る。この駆動機構は、駆動軸21に固定された針駆動カム
36、このカム36に連結された針駆動ロッド37からなり、
これにより駆動軸21からの回転運動を前後方向の往復運
動に変換する。針駆動ロッド37は針の駆動機構38に連結
されている。その駆動機構38は針駆動腕35の一端に固着
されており、この一端を揺動することにより針駆動腕35
全体を揺動する。針駆動腕35の他端は針駆動リンク34に
枢着され、リンク34は針留台33aと針留33bから成る針留
部材33に連結され、針留部材33は針板6に固着された針
留軸32を摺動して、揺動運動を左右方向の直線往復運動
に変換し、これにより針留部材33に取外し自在に固定さ
れた直針3に直線往復運動を与える。
As shown in FIG. 3, the scoop sewing machine according to the present invention includes a straight stitcher at least when sewing is performed between the drive shaft 21 and the needle 3 in the sewing direction in parallel with the spreading direction of the cloth 9. 3 is provided with a drive mechanism for giving a linear reciprocating motion. This drive mechanism is a needle drive cam fixed to the drive shaft 21
36, consisting of a needle drive rod 37 connected to this cam 36,
Thus, the rotational motion from the drive shaft 21 is converted into a reciprocating motion in the front-rear direction. The needle drive rod 37 is connected to a needle drive mechanism 38. The drive mechanism 38 is fixed to one end of the needle drive arm 35. By swinging this one end, the needle drive arm 35
Swing the whole. The other end of the needle drive arm 35 is pivotally connected to a needle drive link 34, and the link 34 is connected to a needle holder 33 composed of a needle holder 33a and a needle holder 33b, and the needle holder 33 is fixed to the needle plate 6. The needle pin 32 is slid to convert the oscillating motion into a linear reciprocating motion in the left-right direction, thereby giving the linear needle 3 removably fixed to the pin retaining member 33 a linear reciprocating motion.

また、駆動軸21は、ルーパ5に楕円の両端で反転され
る駆動を与えるルーパ機構を介してルーパ5に連結され
ている(第4図)。即ち、駆動軸21はルーパクランク54
に固定され、このルーパクランク54にはルーパクランク
ピン台54bが固定されている。ルーパジョイント53が回
動自在にルーパクランクピン54aに枢着され、このルー
パジョイント53にはルーパジョイントピン53aによりル
ーパロッド52の一端が回動自在に枢着されている。ルー
パロッド52の他端にはルーパ5が固定されている。ルー
パロッド52は後述のルーパの駆動機構55に連結され、駆
動機構55のボール(図示せず)はルーパ5に固着されて
いる。
The drive shaft 21 is connected to the looper 5 through a looper mechanism that gives the looper 5 a drive that is inverted at both ends of the ellipse (FIG. 4). That is, the drive shaft 21 is
The looper crank 54 has a looper crankpin base 54b fixed thereto. A looper joint 53 is rotatably connected to a looper crank pin 54a, and one end of a looper rod 52 is rotatably connected to the looper joint 53 by a looper joint pin 53a. The looper 5 is fixed to the other end of the looper rod 52. The looper rod 52 is connected to a looper drive mechanism 55 described later, and a ball (not shown) of the drive mechanism 55 is fixed to the looper 5.

駆動軸21に固着されたルーパクランク54の一部には、
送りカム46が形成されている。送りカム46には送りロッ
ド45の一端が枢着され、他端に送り歯4が固着されてい
る。送り歯4の固着側には送り調節リンク43が枢着され
ている。本体フレーム1に枢着された送り調節軸41の一
端が、送り調節リンク43に枢着され、他端には送り調節
ダイヤル42が固着されている。調節時には送り調節ダイ
ヤル42を回すことにより回転して、縫製時には送り調節
軸41を固定して回転させない送り調節軸回転止め44が設
けられている。
A part of the looper crank 54 fixed to the drive shaft 21 includes:
A feed cam 46 is formed. One end of a feed rod 45 is pivotally attached to the feed cam 46, and the feed dog 4 is fixed to the other end. A feed adjusting link 43 is pivotally mounted on the fixed side of the feed dog 4. One end of a feed adjusting shaft 41 pivotally attached to the main body frame 1 is pivotally attached to a feed adjusting link 43, and a feed adjusting dial 42 is fixed to the other end. A feed adjustment shaft rotation stopper 44 is provided which is rotated by turning the feed adjustment dial 42 at the time of adjustment, and is fixed and does not rotate at the time of sewing.

本発明による掬い縫いミシンにおいては、第5図に示
されるように、上述の押え金79を枢着し且つ布上げ部材
73を備えたシリンダ本体7が、駆動軸21と平行に誘導自
在に枢着部71で前記本体フレーム1に枢着されている。
枢着部71は、プーリー軸26(第2図)のプーリーグリッ
プ24′とは反対側で、駆動軸21の直下において本体フレ
ーム1に枢着され、駆動軸とシリンダ本体の中間点付近
に設けられるより駆動軸21に近いため、シリンダ本体7
の上下揺動が容易である。
In the scoop sewing machine according to the present invention, as shown in FIG.
The cylinder body 7 provided with 73 is pivotally attached to the body frame 1 at a pivoting portion 71 so as to be guided parallel to the drive shaft 21.
The pivot portion 71 is pivotally attached to the main body frame 1 directly below the drive shaft 21 on the opposite side of the pulley shaft 24 'of the pulley shaft 26 (FIG. 2), and is provided near an intermediate point between the drive shaft and the cylinder body. Closer to the drive shaft 21 than the
It is easy to swing up and down.

第5図に示されるように、枢着部71およびシリンダ本
体7は連結部材77で連結され、この連結部材77に針板6
および押え金79間を複数段に開隔するインデックス手段
75が設けられている。第7図に示されるように、インデ
ックス手段75は、プーリー軸26を支点として、押え上げ
軸75bの一方に固定されている押え上げレバー75aを上下
させることにより、押え上げ軸75bの他方に固定されて
いる押え上げカム75c、および押え上げローラー75dが回
転され、密着、乖離、接近の実質3段階に開隔される。
As shown in FIG. 5, the pivot portion 71 and the cylinder body 7 are connected by a connecting member 77.
Index means for separating the presser foot 79
75 are provided. As shown in FIG. 7, the indexing means 75 is fixed to the other of the presser lifting shaft 75b by raising and lowering a presser lifting lever 75a fixed to one of the presser raising shafts 75b with the pulley shaft 26 as a fulcrum. The presser-lifting cam 75c and the presser-lifting roller 75d that have been rotated are rotated, and are separated into substantially three stages of close contact, separation, and approach.

第5図に示されるように、布上げ部材73を備えたシリ
ンダ本体7に、布上げ部材73を回転させる布上げ軸72が
軸支され、布上げ軸72の他端は布上げプーリー74cに固
着され、プーリー74cは駆動軸歯車29に固定されたタイ
ミングベルト25の駆動歯付きプーリー29′にタイミング
ベルト25により、駆動軸21と布上げ軸72が2:1の減速比
で連結されている。
As shown in FIG. 5, a cloth raising shaft 72 for rotating the cloth raising member 73 is supported by the cylinder body 7 having the cloth raising member 73, and the other end of the cloth raising shaft 72 is connected to a cloth raising pulley 74c. The pulley 74c is fixed, and the drive shaft 21 and the cloth-raising shaft 72 are connected at a reduction ratio of 2: 1 to the pulley 29 'with the drive teeth of the timing belt 25 fixed to the drive shaft gear 29 by the timing belt 25. .

さらに、布上げ部材73は、第9図に示されるように、
外周上に対称的に配設され直針3が布9に突き刺さると
き迄布を突き上げるタイミング位置を与える第1、第2
の突尖73a、73で形成され、第1、第2の突尖73a、73b
の一方73aは他方73bより周方向に所定量長く形成され、
駆動軸21に対して布上げ軸72を周方向に所定量だけ余分
に半回転させてタイミング位置を第1、第2の突尖73
a、73bの一方より他方が突き上げ量を少なくする跳び縫
い位置に切換える切換手段74(第6図)が設けられてい
る。この切換手段74は、第6図に示されるように、布上
げ軸72の端部の、布上げプーリー74cの内側にスキップ
ダイヤル74aが組合され、布上げプーリー74c内に三角形
状のフック74eが形成され、そのフック74eに対応して、
スキップダイヤル74aには三角形状の凹部74fが周方向に
所定量だけ余分に半回転するタイミング位置に2ヵ所設
けられている。その凹部74fは、布上げプーリー74cに伝
達された回転が駆動方向にはスキップダイヤル74aへ伝
達し、反対方向には三角形状のフック74eが三角形状の
凹部74fを滑って伝達しないように構成されている。ス
キップダイヤル74aは布上げ軸72に固定された布上げ軸
駆動ピン74dがスキップダイヤル74aの溝に遊嵌して、布
上げ軸72を回転方向には伝達しながら軸方向にスライド
し、スキップダイヤル74aは布上げ軸72の端部に固定さ
れたダイヤルバネ74bにより布上げプーリー74cに押圧す
るよう弾撥されて、スキップダイヤル74aを半回転させ
ることにより、布上げ部材73を固定した布上げ軸72の布
上げプーリー74cに対するタイミング位置を換えること
により、普通縫いと跳び縫いとを選択的に切換える。
Further, as shown in FIG.
First and second positions symmetrically arranged on the outer circumference to provide timing positions for pushing up the cloth until the straight needle 3 pierces the cloth 9.
First and second prongs 73a, 73b
One 73a is formed longer by a predetermined amount in the circumferential direction than the other 73b,
The cloth raising shaft 72 is additionally rotated by a predetermined amount in the circumferential direction with respect to the drive shaft 21 by a half turn to set the timing position to the first and second protruding points 73.
A switching means 74 (FIG. 6) for switching to a jump stitching position in which the other one of the a and 73b reduces the amount of thrust is provided. As shown in FIG. 6, the switching means 74 is provided with a skip dial 74a at the end of the cloth raising shaft 72 inside the cloth raising pulley 74c, and a triangular hook 74e inside the cloth raising pulley 74c. Formed, corresponding to its hook 74e,
The skip dial 74a is provided with two triangular concave portions 74f at a timing position where the triangular concave portion 74f is additionally rotated half a predetermined amount in the circumferential direction. The concave portion 74f is configured such that the rotation transmitted to the cloth lifting pulley 74c is transmitted to the skip dial 74a in the driving direction, and the triangular hook 74e does not slide and transmit the triangular concave portion 74f in the opposite direction. ing. The skip dial 74a slides in the axial direction while the cloth raising shaft drive pin 74d fixed to the cloth raising shaft 72 is loosely fitted in the groove of the skip dial 74a and transmits the cloth raising shaft 72 in the rotation direction. 74a is repelled by a dial spring 74b fixed to the end of the cloth raising shaft 72 so as to press against the cloth raising pulley 74c, and by rotating the skip dial 74a a half turn, the cloth raising member 73 is fixed. By changing the timing position of the 72 with respect to the cloth pulley 74c, the normal sewing and the jumping sewing are selectively switched.

第5図に示されるように、直針3の、布9に対する掬
い深さを加減する掬い深さ調節部76が、布上げ上部73を
備えたシリンダ本体7に連結され設けられている。
As shown in FIG. 5, a scooping depth adjusting section 76 for adjusting the scooping depth of the straight needle 3 with respect to the cloth 9 is provided so as to be connected to the cylinder body 7 having the cloth raising upper portion 73.

第8図に示されるように、駆動軸21の上部で駆動軸21
に直交する掬い調節軸76bの一端には掬い調節ダイヤル7
6dが取り付けられ、他端には掬い調節板76aの上端に設
けられたU溝が係止されている。本体フレーム1の傾斜
した掬い調節座金押圧部1aに、掬い調節座金76eが掬い
調節ピン76cにより押圧されている。掬い調節ダイヤル7
6dを回転させ、掬い調節軸76bに固定された掬い調節ピ
ン76cが真上の位置より真下の位置に回転移動すること
により、掬い調節ピン76cが掬い調節座金76eを押圧しな
がら本体フレーム1の掬い調節座金押圧部1aの傾斜に沿
って掬い調節軸76bが僅かに前進または後退し、それに
伴い掬い調節軸76bに係止されている掬い調節板76aが移
動し、掬い調節板76aの途中に固定されている連結部材7
7が僅かに上下して布上げ軸72に固定されている布上げ
部材73を上下に微調整する。
As shown in FIG. 8, the drive shaft 21
The scoop adjustment dial 7 is attached to one end of the
At the other end, a U-groove provided at the upper end of the scoop adjusting plate 76a is locked. A scoop adjusting washer 76e is pressed by a scoop adjusting pin 76c against the inclined scoop adjusting washer pressing portion 1a of the main body frame 1. Scoop adjustment dial 7
6d is rotated, and the scoop adjusting pin 76c fixed to the scoop adjusting shaft 76b is rotated to a position directly below the position directly above, so that the scoop adjusting pin 76c presses the scoop adjusting washer 76e while the main frame 1 The scooping adjustment shaft 76b slightly advances or retreats along the inclination of the scooping adjustment washer pressing portion 1a, and the scooping adjustment plate 76a locked on the scooping adjustment shaft 76b moves along with the movement of the scooping adjustment plate 76a. Fixed connecting member 7
7 slightly moves up and down, and finely adjusts the cloth lifting member 73 fixed to the cloth raising shaft 72 vertically.

第5図に示されるように、押え金79を枢着し且つ布上
げ部材73を備えたシリンダ本体7は、駆動軸21と平行に
誘導自在に枢着部71で本体フレーム1に枢着され、この
シリンダ本体7を、押え金79が針板6に押圧される方向
に弾撥するシリンダばね70が設けられている。このシリ
ンダばね70は布上げ部材73を4〜5kgの圧力で針板6の
方向に押圧するよう調整されている。布9の厚さに応
じ、シリンダばね70に抗して布上げ部材73を、布9の厚
さ方向に進退させる布押えストッパー68が、針板6に固
定されている上針受け67の基部に直針3および布9の広
がり面と並行に設けられている(第10図)。
As shown in FIG. 5, the cylinder body 7 pivotally attached to the presser foot 79 and provided with the cloth lifting member 73 is pivotally attached to the main body frame 1 at the pivoted portion 71 so as to be guided parallel to the drive shaft 21. A cylinder spring 70 is provided for repelling the cylinder body 7 in the direction in which the presser foot 79 is pressed against the needle plate 6. The cylinder spring 70 is adjusted so as to press the cloth lifting member 73 in the direction of the needle plate 6 with a pressure of 4 to 5 kg. A cloth holding stopper 68 for moving the cloth lifting member 73 forward and backward in the thickness direction of the cloth 9 against the cylinder spring 70 in accordance with the thickness of the cloth 9 has a base portion of an upper needle receiver 67 fixed to the needle plate 6. Are provided in parallel with the spread surface of the straight needle 3 and the cloth 9 (FIG. 10).

かつ、第10図に示されるように、布押え部材は左右布
押え部材63b、63aから形成され、厚さ0.15〜0.3mmの薄
地縫いの場合は左布押え部材63bにより、0.3mm以上の中
厚地より厚い縫いの場合は右布押え部材63aにより、布
上げ部材73によって突き上げられた布9を保持する方向
に布押えばね65が左右布押え部材63b、63aを弾撥してい
る。
Further, as shown in FIG. 10, the presser foot member is formed of left and right presser foot members 63b and 63a. In the case of sewing thicker than thick fabric, the right-hand presser member 63a causes the presser spring 65 to repel the left and right presser members 63b and 63a in the direction in which the cloth 9 pushed up by the cloth lifting member 73 is held.

第11図に示されるように、針板6に穿設された開口62
に、直針3の進入を案内し、かつ布上げ部材73によって
突上げられた布9を直針3が貫通抵抗により直針3の進
入方向に伴送されるのを防止する防護部材61aが設けら
れている。この防護部材61aは、開口62に稍突出して針
板6にねじで固定された針案内板61の、直針3の進入す
る側に設けられ、この防護部材61aと布上げ部材73によ
り布9が挟持されるよう、針案内板61の端部が布上げ部
材73側に稍突出して設けられている。
As shown in FIG. 11, an opening 62 formed in the needle plate 6 is provided.
In addition, there is provided a protective member 61a for guiding the entry of the straight needle 3 and preventing the cloth 9 pushed up by the cloth lifting member 73 from being entrained in the entry direction of the straight needle 3 due to penetration resistance. Is provided. The protection member 61a is provided on the side of the needle guide plate 61, which slightly projects from the opening 62 and is fixed to the needle plate 6 with a screw, on the side where the straight needle 3 enters. The end of the needle guide plate 61 is provided so as to slightly protrude toward the cloth lifting member 73 so as to be clamped.

第12図(a)に示されるように、開口62内を楕円運動
し布9を縫い方向に送る送り歯4は、第12図(b)に示
されるように、布9の拡がり方向の布の身頃側4aが、布
9の裾上げ側4bに比べて布9に向って突出しており、進
行につれて布9を左方向へ僅かに引寄せながら送るよう
になっている。
As shown in FIG. 12 (a), the feed dog 4 which moves the cloth 9 in the sewing direction by performing an elliptical movement in the opening 62, as shown in FIG. The body side 4a protrudes toward the cloth 9 as compared with the hem-raising side 4b of the cloth 9, so that the cloth 9 is slightly pulled leftward as it advances.

第10図に示されるように、縫い終了時に縫製物を縫い
方向と逆方向に引出すことにより、ルーパ5に捕捉され
た縫い糸8(第1図)を切断するメス85が開口62の布の
身頃側に設けられている。このメス85は上針受け67の下
に収納され、市販のカッターナイフの刃が好適である。
As shown in FIG. 10, the scalpel 85 for cutting the sewing thread 8 (FIG. 1) captured by the looper 5 by pulling out the sewn material in the direction opposite to the sewing direction at the end of sewing causes the body It is provided on the side. The scalpel 85 is stored under the upper needle receiver 67, and a commercially available cutter knife blade is suitable.

第13図に示されるように、縫い糸8を捕捉する剣先5
a、および剣先5aによって捕捉された縫い糸8にループ
を形成して針3にループになった縫い糸をからげる小爪
5bを有するルーパ5は、その小爪5bが超合金のような安
価な軟質材料で形成され、剣先5aは鋼材のような硬質材
料で形成され、取外し自在に小爪5bにねじで取着され
る。
As shown in FIG. 13, the blade 5 for catching the sewing thread 8
a, and a small claw that forms a loop in the sewing thread 8 captured by the sword tip 5a and ties the looped sewing thread to the needle 3
The looper 5 having 5b has a small claw 5b formed of an inexpensive soft material such as a superalloy, a tip 5a formed of a hard material such as steel, and is detachably attached to the small claw 5b with a screw. You.

第14図(a)、(b)に示されるように、駆動軸21と
直針3との間に布9の拡がり方向に並行で縫い方向に交
叉して少なくとも縫いを行なうときに直針3の直線往復
運動を与える針の駆動機構38が設けられている。この駆
動機構38であるユニバーサルジョイントは、ボール38d
と、このボール38dをOリング38eを介して包むソケット
蓋38aから成る。
As shown in FIGS. 14 (a) and 14 (b), the straight needle 3 is interposed between the drive shaft 21 and the straight needle 3 in the sewing direction in parallel with the spreading direction of the cloth 9 and at least in the sewing direction. A needle driving mechanism 38 for providing a linear reciprocating motion of the needle is provided. The universal joint, which is the driving mechanism 38, has a ball 38d
And a socket lid 38a that wraps the ball 38d through an O-ring 38e.

[発明の作用] このように構成された本発明による掬い縫いミシンの
作用を説明する。
[Operation of the Invention] The operation of the scoop sewing machine according to the present invention thus configured will be described.

本発明による掬い縫いミシンにおいて、連結部材77を
介してシリンダ本体7が、枢着部71で駆動軸21と並行に
揺動自在に連結され、枢着部71が駆動軸21の直下のプー
リー軸26の一端に設けられ、シリンダばね70によって針
板6の方向に弾撥されているシリンダ本体7の隔開は、
インデックス手段75により複数段に切換え可能である。
このため、布9の出し入れの際の針板6と押え金79間の
隔開、布9の位置決めの際の針板6と押え金79間の接
近、および掬い縫い時の布9の保持(密着)の各段階の
選択が、押え上げレバー75aを操作して容易に可能であ
る。
In the scoop sewing machine according to the present invention, the cylinder body 7 is swingably connected to the drive shaft 21 in parallel with the drive shaft 21 via the connection member 77, and the pulley shaft immediately below the drive shaft 21 is connected to the cylinder body 7. The separation of the cylinder body 7 provided at one end of the cylinder 26 and repelled in the direction of the needle plate 6 by the cylinder spring 70
Switching to a plurality of stages is possible by the index means 75.
Therefore, the gap between the needle plate 6 and the presser foot 79 when the cloth 9 is taken in and out, the approach between the needle plate 6 and the presser foot 79 when the cloth 9 is positioned, and the holding of the cloth 9 at the time of scooping ( Selection of each step of (contact) can be easily performed by operating the presser lifting lever 75a.

本発明による掬い縫いミシンによれば、駆動軸21と布
上げ軸72が2:1の減速比で連結され、布上げ軸72に固定
されている布上げ部材73が、外周上に対称的に配設され
る第1、第2の突尖73a、73bで形成され、第1、第2の
突尖73a、73bの一方73aは他方73bより周方向に所定量長
く形成され、駆動軸21に対して布上げ軸72を周方向に所
定量だけ余分に半回転させてタイミング位置を第1、第
2の突尖73a、73bの一方より他方が突き上げ量を少なく
する跳び縫い位置に切換える切換手段74が設けられてい
る。切換手段74のスキップダイヤル74aを回転させて普
通縫い(連続掬い縫い)を選択すると、布上げ部材73の
突尖では、第9図のxーx線が働き、布上げ部材73の半
回転毎に突尖73aの山、73bの山が布9を突き上げ、連続
して掬い縫いがなされる。スキップダイヤル74aを回転
させて跳び縫いを選択すると、布上げ部材73の突尖で
は、第9図のyーy線が働き、布上げ部材73の1回転毎
に周方向に所定量長く形成されている突尖73aの山が布
9を突き上げ、半回転時の突尖73bは谷状態で布9を突
き上げず、一つ置きの跳び掬い縫いがなされる。xーx
線とyーy線のなす角度αは約7゜〜10゜が好適であ
る。
According to the scooping sewing machine according to the present invention, the drive shaft 21 and the cloth raising shaft 72 are connected at a reduction ratio of 2: 1 and the cloth raising member 73 fixed to the cloth raising shaft 72 is symmetrically arranged on the outer periphery. The first and second prongs 73a, 73b are provided, and one 73a of the first and second prongs 73a, 73b is formed to be longer than the other 73b by a predetermined amount in the circumferential direction. On the other hand, a switching means for switching the timing position to a jumping sewing position in which one of the first and second protruding tips 73a and 73b makes the pushing-up amount smaller than one of the first and second prongs 73a and 73b by rotating the cloth raising shaft 72 an extra half turn in the circumferential direction. 74 are provided. When ordinary sewing (continuous scooping sewing) is selected by rotating the skip dial 74a of the switching means 74, the xx line of FIG. The peak of the protruding point 73a and the peak of the point 73b push up the cloth 9, and scooping is continuously performed. When skip sewing is selected by rotating the skip dial 74a, the yy line in FIG. 9 acts on the protruding point of the cloth lifting member 73, and is formed to be longer by a predetermined amount in the circumferential direction for each rotation of the cloth raising member 73. The peak of the protruding tip 73a pushes up the cloth 9, and the protruding tip 73b at the half rotation does not push up the cloth 9 in a valley state, and alternate jumping and scooping is performed. xx
The angle α between the line and the yy line is preferably about 7 ° to 10 °.

本発明による掬い縫いミシンによれば、掬い深さ調節
部76が、布上げ部材73を備えたシリンダ本体7に連結さ
れて設けられ、第8図に示されるように、掬い調節ダイ
ヤル76dを回転させることにより、掬い調節軸76bが僅か
に前進または後退し、それに伴い掬い調節軸76bに係止
されている掬い調節板76aが移動し、掬い調節板67aの途
中に固定されている連結部材77が僅かに上下揺動して布
上げ軸72に固定されている布上げ部材73を上下に微調整
する。これは、布9の厚さが薄いとき、表に掬い目が目
立たないように掬い深さを選択するのに好適である。
According to the scooping sewing machine according to the present invention, the scooping depth adjusting section 76 is provided so as to be connected to the cylinder body 7 having the cloth lifting member 73, and as shown in FIG. By doing so, the scoop adjusting shaft 76b slightly advances or retreats, and accordingly the scoop adjusting plate 76a locked on the scoop adjusting shaft 76b moves, and the connecting member 77 fixed in the middle of the scoop adjusting plate 67a. Swings up and down slightly to finely adjust the cloth lifting member 73 fixed to the cloth raising shaft 72 up and down. This is suitable for selecting the depth of scooping so that when the thickness of the cloth 9 is small, the scooping lines are not conspicuous in the table.

本発明による掬い縫いミシンによれば、シリンダばね
70に抗して布上げ部材73を、布9の厚さ方向に進退させ
る布押えストッパー68が、針板6に固定されている上針
受け67の基部に直針3および布9の広がり面と並行に設
けられている。第10図に示されるように、布9が布押え
部材63a、63bの先端と布上げ部材73の上端にはさまれて
押え上げられたとき、右布押え部材63aが布押えばね65
に抗して上方に回転すると、布押えストッパー68に当接
し、布9の厚さが中厚地より厚い場合、又クロスシーム
部分で特に厚くなっている場合など、布9の圧縮された
布厚により布上げ部材73を布9の厚さ方向に進退させ、
布厚の変化に関係なく一定の掬い深さが保たれて安定し
た綺麗な縫目をつくることができる。本発明による掬い
縫いミシンによれば、布上げ部材73によって突上げられ
た布9を、直針3が貫通抵抗により直針3の進入方向に
伴送されるのを防止する防護部材61aが針案内板61に設
けられている。第11図に示されるように、普通の布地の
場合の位置で、上下針受け67、66に案内された直針3
が貫通するが、針通りの悪い布地90の場合、防護部材61
aがないと直針3に押されての位置に伴送されて、針
の後退時伴送された布が針と共に後退して針先の糸ルー
プが出来ず、ルーパ剣先が針糸を捕足出来ないため目飛
びの原因になる。
According to the scoop sewing machine according to the present invention, a cylinder spring
A cloth holding stopper 68 for moving the cloth lifting member 73 in the thickness direction of the cloth 9 against the cloth raising member 73 is provided at the base of the upper needle receiver 67 fixed to the needle plate 6 with the spread surface of the straight needle 3 and the cloth 9. And are provided in parallel. As shown in FIG. 10, when the cloth 9 is pressed and lifted between the front ends of the cloth pressing members 63a and 63b and the upper end of the cloth lifting member 73, the right cloth pressing member 63a is moved to the cloth pressing spring 65.
If the cloth 9 is thicker than the medium-weight material, or if the cloth 9 is particularly thick at the cross seam portion, the compressed cloth thickness of the cloth 9 The cloth lifting member 73 is moved forward and backward in the thickness direction of the cloth 9 by
A constant scooping depth is maintained irrespective of the change in the cloth thickness, and a stable and beautiful seam can be created. According to the scoop sewing machine according to the present invention, the protection member 61a for preventing the cloth 9 pushed up by the cloth lifting member 73 from being entrained in the direction of entry of the straight needle 3 due to penetration resistance due to the needle is provided with the needle. The guide plate 61 is provided. As shown in FIG. 11, the straight needle 3 guided by the upper and lower needle receivers 67 and 66 at the position of a normal cloth.
Penetrates, but the protection member 61
If there is no a, it is fed to the position where it is pushed by the straight needle 3, and when the needle retreats, the cloth that has been fed back with the needle does not form a thread loop at the needle tip, and the looper blade tip catches the needle thread. It can cause skipping because it cannot be performed.

本発明による掬い縫いミシンでは、布上げ部材73と防
護部材61aが布を支え()、針通りの悪い布地でも直
針3の進入方向への伴送が妨げられ、針の後退時布が針
と共に後退せず針先の糸ループが出来、ルーパ剣先が針
糸を捕足して確実な掬い縫いがなされる。
In the scooping sewing machine according to the present invention, the cloth lifting member 73 and the protective member 61a support the cloth (), and even when the cloth has poor needle passage, the accompanying movement of the straight needle 3 in the entering direction is prevented, and the cloth when the needle is retracted is moved by the needle. At the same time, the thread loop of the needle tip is formed without retreating, and the looper blade tip catches the needle thread and secure scooping is performed.

本発明による掬い縫いミシンによれば、第12図
(a)、(b)に示されるように、送り歯は布9の拡が
り方向の布の身頃側4aが布9の裾上げ側4bに比べて布9
に向って突出しており、送り量は針板裏面よりよけいに
突出している量だけ裾上げ側4bより身頃側4aの方が多く
送ることにより、布9は拡がり方向の左方向へ僅かに引
寄せられながら送られる。これにより布9の裾上げ折返
し部エッジが、左布押さえ部材63bの布ガイド部63b′に
絶えず当接して送ることになり、直進性がきわめて良く
なり操作が容易で安定した縫い上がりを得ることができ
る。
According to the scoop sewing machine according to the present invention, as shown in FIGS. 12 (a) and 12 (b), the feed dog is such that the body side 4a of the cloth 9 in the spreading direction of the cloth 9 is smaller than the hemming side 4b of the cloth 9. Cloth 9
The cloth 9 is slightly pulled to the left in the spreading direction by feeding more on the body side 4a than on the hem-raising side 4b by the amount protruding beyond the back of the needle plate. Sent while being sent. As a result, the edge of the folded back portion of the cloth 9 is constantly brought into contact with the cloth guide 63b 'of the left cloth pressing member 63b, and the straightness is extremely improved, so that the operation is easy and a stable sewing is obtained. Can be.

本発明による掬い縫いミシンでは、第10図に示される
ように、開口62の布の身頃側に設けられているメス85
に、縫い終了時に縫製物を縫い方向と逆方向に引出して
縫い糸8を容易に切断できる。
In the scoop sewing machine according to the present invention, as shown in FIG. 10, a scalpel 85 provided on the body side of the cloth in the opening 62.
Furthermore, at the end of sewing, the sewing material is pulled out in the direction opposite to the sewing direction, so that the sewing thread 8 can be easily cut.

本発明による掬い縫いミシンによれば、第13図に示さ
れるように、ルーパ5は、その小爪5bを含めた本体が超
合金のような安価な軟質材料で形成され、剣先5aのみ鋼
材のような硬質材料で形成され、取外し自在に小爪5bに
ねじで取着されるので従来のルーパに比較して遥かに低
価格である。
According to the scoop sewing machine according to the present invention, as shown in FIG. 13, the looper 5 has a main body including a small claw 5b formed of an inexpensive soft material such as a superalloy, and only the blade 5a is made of steel. Since it is formed of such a hard material and is detachably attached to the small claw 5b with a screw, the cost is much lower than that of a conventional looper.

本発明による掬い縫いミシンによれば、第14図
(a)、(b)に示されるように、直針3に直線往復運
動を与える針の駆動機構38が設けられ、この駆動機構38
であるユニバーサルジョイントは、ボール38dと、この
ボール38dをOリング38eを介して包むソケット38cと、
ソケット蓋38aから成る。ソケット38cは針駆動ロッド37
に連結され、ボール38dは針駆動腕35に固着されてい
る。針駆動ロッド37の前後方向の往復運動は針の駆動機
構38により、針駆動腕35全体の揺動運動に変換される。
この針駆動腕35の他端は針駆動リンク34に枢着され、リ
ンク34は針留台33aと針留33bから成る針留部材33に連結
され、針留部材33は針板6に固着された針留軸32を摺動
して、揺動運動を左右方向の直線往復運動に変換し、こ
れにより針留部材33に取外し自在に固定された直針3に
直線往復運動を与える。
According to the scoop sewing machine according to the present invention, as shown in FIGS. 14 (a) and 14 (b), a needle driving mechanism 38 for providing the linear needle 3 with a linear reciprocating motion is provided.
The universal joint is a ball 38d, a socket 38c that wraps the ball 38d via an O-ring 38e,
It consists of a socket lid 38a. Socket 38c is needle drive rod 37
And the ball 38d is fixed to the needle driving arm 35. The reciprocating motion of the needle driving rod 37 in the front-rear direction is converted into a swinging motion of the entire needle driving arm 35 by the needle driving mechanism 38.
The other end of the needle drive arm 35 is pivotally connected to a needle drive link 34, and the link 34 is connected to a needle holder 33 including a needle holder 33a and a needle holder 33b, and the needle holder 33 is fixed to the needle plate 6. The needle pin 32 is slid to convert the swinging motion into a linear reciprocating motion in the left-right direction, thereby giving a linear reciprocating motion to the straight needle 3 detachably fixed to the pin retaining member 33.

従来の駆動機構であるユニバーサルボールジョイント
は製造に精度が要求され、高価であったが、Oリング38
eとボール38dの組合せにより、遥かに低価格で製造され
る。
The conventional drive mechanism, the universal ball joint, required high precision in manufacturing and was expensive.
It is manufactured at a much lower price by the combination of e and the ball 38d.

尚、このOリングとボールの組合せは、ルーパの駆動
機構55にも好適に用いられる。
This combination of the O-ring and the ball is also suitably used for the drive mechanism 55 of the looper.

[発明の効果] 以上の説明からも明らかなように、本発明による掬い
縫いミシンによれば、針を直針で形成することにより、
製造が容易であり、かつ製造された針の精度上の品質が
高い通常の家庭用ミシンの低廉な縫針を使用できる。
[Effects of the Invention] As is clear from the above description, according to the scooping sewing machine according to the present invention, by forming the needle with a straight needle,
Inexpensive sewing needles of ordinary household sewing machines that are easy to manufacture and have high precision quality of the manufactured needles can be used.

また、本発明による掬い縫いミシンによれば、シリン
ダ本体が、駆動軸に並行に、かつ、駆動軸直下に揺動自
在に本体フレームに枢着部で枢着され、針板および押え
金間を複数段に開隔するインデックス手段を設けられて
いるので、挿入時または縫い始めの位置決めが容易にで
きる。また、布上げ部材には第1、第2の突尖の一方を
他方より周方向に所定量長く形成し、跳び縫い位置に切
換える切換手段を設け、直針の布に対する掬い深さを加
減する掬い深さ調節部を設けたので、跳び縫いや掬い深
さ調節が可能である。更に、布の厚さに応じシリンダば
ねに抗して布上げ部材を布の厚さ方向に進退させる布押
えストッパー、および布を直針が貫通抵抗により直針の
進入方向に伴送されるのを防止する防護部材を設けたの
で目とびが防止される。また、送り歯は、布の身頃側が
布の裾上げ側に比べて布に向って突出しているので縫い
が真っ直ぐに維持される。縫い糸を切断するメスが糸切
りを容易にする。更に、ルーパは、その小爪を含む本体
が軟質材料で形成され、剣先が硬質材料で形成され取外
し自在に小爪に取着され、直針に直線往復運動を与える
駆動機構がボールと、このボールをOリングを介して包
むソケットとから成るユニバーサルジョイントを有する
ので製造にあたっては著しくコスドダウンが図られる。
Further, according to the scooping sewing machine according to the present invention, the cylinder body is pivotally attached to the body frame in a pivotable manner in parallel with the drive shaft, and directly below the drive shaft, so that a gap between the needle plate and the presser foot is provided. Since the index means is provided in a plurality of stages, positioning at the time of insertion or at the start of sewing can be easily performed. Further, the cloth raising member is formed so that one of the first and second protruding points is formed to be longer than the other by a predetermined amount in the circumferential direction, and is provided with a switching means for switching to the jumping sewing position, thereby adjusting the scooping depth of the straight needle with respect to the cloth. Since the scooping depth adjusting section is provided, jumping sewing and scooping depth adjustment can be performed. Furthermore, a cloth presser stopper that moves the cloth lifting member in the thickness direction of the cloth against the cylinder spring in accordance with the thickness of the cloth, and the cloth is fed in the direction in which the straight needle enters due to penetration resistance. Protective members are provided to prevent skipping. Further, since the body of the feed dog protrudes toward the cloth as compared with the hem-raising side of the cloth, the sewing is maintained straight. A scalpel that cuts the sewing thread facilitates thread trimming. Further, the looper has a body including a small claw formed of a soft material, a sword tip formed of a hard material, detachably attached to the small claw, and a driving mechanism for giving a linear reciprocating motion to the straight needle. Since there is a universal joint consisting of a socket that wraps the ball through an O-ring, manufacturing costs are significantly reduced.

【図面の簡単な説明】 第1図は本発明による掬い縫いミシンの外観斜視図、第
2図は駆動機構および送り関係の説明図、第3図は針関
係の説明図、第4図はルーパおよび針板関係の説明図、
第5図はシリンダ関係の説明図、第6図は切換手段の説
明図、第7図は押え上げ軸の動作説明図、第8図は掬い
調節機構の説明図、第9図は布上げ部材の説明図、第10
図は布押えストッパーおよび糸切りの説明図、第11図は
防護部材の説明図、第12図(a)、(b)は送り歯の説
明図、第13図はルーパの説明図、第14図(a)、(b)
は針の駆動機構の説明図、第15図は従来の曲針を示す図
である。 1……本体フレーム 1a……掬い調節座金押圧部 12……フレームカバー 14……本体ベース 14a……防振ゴム、 15……上面カバー 16……針板カバー 17……シリンダカバー 17a……シリンダ上カバー 17b……シリンダ下カバー 18……糸立台 18a……糸巻受け 18b……糸立棒 18c……糸案内棒 19……取手 2……モーター 21……駆動軸 22……モータープーリー 23……Vベルト 24……プーリー 24′……プーリーグリップ 24″……小歯車 25……タイミングベルト 26……プーリー軸 29……駆動軸歯車 29′……タイミングベルトの駆動歯付きプーリー 3……針 32……針留軸 33……針留部材 33a……針留台 33b……針留 34……針駆動リンク 35……針駆動腕 36……針駆動カム 37……針駆動ロッド 38……針の駆動機構 38a……ソケット蓋 38c……ソケット 38d……ボール 38e……Oリング 4……送り歯 4a……身頃側 4b……裾上げ側 41……送り調節軸 42……送り調節ダイヤル 43……送り調節リンク 44……送り調節軸回転止め 45……送りロッド 46……送りカム 5……ルーパ 5a……剣先 5b……小爪 52……ルーパロッド 53……ルーパジョイント 53……ルーパジョイントピン 54……ルーパクランク 54b……ルーパクランクピン台 55……ルーパの駆動機構 55a……ソケット蓋 55c……ソケット 55e……Oリング 6……針板 61……針案内板 61a……防護部材 62……開口 63a……右布押え部材 63b……左布押え部材 63b′……布ガイド部 65……布押えばね 66……下針受け 67……上針受け 68……布押えストッパー 7……シリンダ本体 70……シリンダばね 71……枢着部 72……布上げ軸 73……布上げ部材 73a……第1の突尖 73b……第2の突尖 74……切換手段 74a……スキップダイヤル 74b……ダイヤルばね 74c……布上げプーリー 74d……布上げ軸駆動ピン 74e……三角形状のフック 74f……三角形状の凹部 75……インデックス手段 75a……押え上げレバー 75b……押え上げ軸 75c……押え上げカム 75d……押え上げローラー 76……掬い深さ調節部 76a……掬い調節板 76b……掬い調節軸 76c……掬い調節ピン 76d……掬い調節ダイヤル 76e……掬い調節座金 77……連結部材 79……押え金 79a……押えばね 79b……押え土台 8……糸 81……糸調子つまみ 85……メス 9……布 90……針通りの悪い布
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a scoop sewing machine according to the present invention, FIG. 2 is an explanatory view of a drive mechanism and a feed relation, FIG. 3 is an explanatory view of a needle relation, and FIG. And an explanatory diagram of a needle plate relationship,
FIG. 5 is an explanatory view of a cylinder, FIG. 6 is an explanatory view of a switching means, FIG. 7 is an explanatory view of an operation of a press-up shaft, FIG. 8 is an explanatory view of a scooping adjustment mechanism, and FIG. Explanatory drawing of the tenth
FIG. 11 is an explanatory view of a presser foot stopper and thread cutting, FIG. 11 is an explanatory view of a protective member, FIGS. 12 (a) and 12 (b) are explanatory views of a feed dog, FIG. 13 is an explanatory view of a looper, FIG. Figures (a) and (b)
Is an explanatory view of a needle driving mechanism, and FIG. 15 is a view showing a conventional curved needle. 1 ... body frame 1a ... scooping adjustment washer pressing part 12 ... frame cover 14 ... body base 14a ... vibration-proof rubber, 15 ... top cover 16 ... needle plate cover 17 ... cylinder cover 17a ... cylinder Upper cover 17b Cylinder lower cover 18 Thread stand 18a Thread spool 18b Thread stand 18c Thread guide rod 19 Handle 2 Motor 21 Drive shaft 22 Motor pulley 23 ... V-belt 24 ... Pulley 24 '... Pulley grip 24 "... Small gear 25 ... Timing belt 26 ... Pulley shaft 29 ... Drive shaft gear 29' ... Pulley with drive teeth for timing belt 3 ... Needle 32 Needle shaft 33 Needle member 33a Needle holder 33b Needle stay 34 Needle drive link 35 Needle drive arm 36 Needle drive cam 37 Needle drive rod 38 … Needle drive mechanism 38a… Socket lid 38c… Socket 38d… Ball 38e… O Group 4: Feed dog 4a ... Body side 4b ... Hem raised side 41 ... Feed adjustment shaft 42 ... Feed adjustment dial 43 ... Feed adjustment link 44 ... Feed adjustment shaft rotation stopper 45 ... Feed rod 46 ... … Feed cam 5 …… Looper 5a …… Sword tip 5b …… Small claws 52 …… Looper rod 53 …… Looper joint 53 …… Looper joint pin 54 …… Looper crank pin base 55b …… Looper crank pin base 55 …… Looper driving mechanism 55a Socket cover 55c Socket 55e O-ring 6 Needle plate 61 Needle guide plate 61a Protective member 62 Opening 63a Right fabric holding member 63b Left fabric holding member 63b ' … Fabric guide part 65… Fabric holder spring 66… Lower needle holder 67… Upper needle holder 68… Fabric holder stopper 7… Cylinder body 70… Cylinder spring 71… pivot part 72… Shaft 73: Cloth lifting member 73a: First protruding point 73b: Second protruding point 74: Switching means 74a … Skip dial 74b… Dial spring 74c… Cloth lifting pulley 74d… Cloth raising shaft drive pin 74e… Triangular hook 74f… Triangular recess 75… Indexing means 75a… Presser lifting lever 75b… … Lifter shaft 75c… lifter cam 75d… lifter roller 76… scooping depth adjustment part 76a… scooping adjustment plate 76b …… scooping adjustment shaft 76c …… scooping adjustment pin 76d …… scooping adjustment dial 76e… ... Scoop adjustment washer 77 ... Connecting member 79 ... Presser foot 79a ... Presser spring 79b ... Presser base 8 ... Thread 81 ... Thread tension knob 85 ... Female 9 ... Cloth 90 ... Poor needle passing cloth

Claims (10)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、前記針板に穿設された開口
を通して布を突上げる布上げ部材と、突上げられた布を
押える布押え部材とを備えて前記針を突上げられた布部
分に突き刺して前記ルーパとの協働により単糸環縫によ
る掬い縫いを行なう掬い縫いミシンにおいて、前記針を
直針で形成すると共に、前記押え金を枢着し且つ前記布
上げ部材を備えたシリンダ本体が、前記駆動軸と平行に
摺動自在に枢着部で前記本体フレームに枢着され、前記
枢着部を、前記駆動軸と前記シリンダ本体の中間点より
前記駆動軸近傍に設けたことを特徴とする掬い縫いミシ
ン。
1. A drive shaft rotatably supported by a body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding the cloth, and a cloth through an opening formed in the needle plate. A cloth lifting member for pushing up the cloth, and a cloth holding member for holding the cloth pushed up. The needle is pierced into the cloth part which has been pushed up, and the scoop sewing by single thread chain sewing is performed in cooperation with the looper. In a scooping sewing machine, the needle is formed by a straight needle, and a cylinder body pivotally attached to the presser foot and provided with the cloth lifting member is slidably slidably parallel to the drive shaft. A scooping sewing machine which is pivotally attached to a frame, and wherein the pivoting portion is provided near the drive shaft from an intermediate point between the drive shaft and the cylinder body.
【請求項2】前記枢着部および前記シリンダ本体を連結
部材で連結し、この連結部材に前記針板および前記押え
金間を複数段に開隔するインデックス手段を設けたこと
を特徴とする請求項1記載の掬い縫いミシン。
2. The apparatus according to claim 1, wherein said pivoting portion and said cylinder body are connected by a connecting member, and said connecting member is provided with index means for separating said needle plate and said presser foot into a plurality of steps. Item 2. A scoop sewing machine according to Item 1.
【請求項3】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、前記針板に穿設された開口
を通して布を突上げる布上げ部材と、突上げられた布を
押える布押え部材とを備えて前記針を突上げられた布部
分に突き刺して前記ルーパとの協働により単糸環縫によ
る掬い縫いを行なう掬い縫いミシンにおいて、前記針を
直針で形成すると共に、前記布上げ部材を備えたシリン
ダ本体に、前記布上げ部材を回転させる布上げ軸を軸支
し、前記駆動軸と前記布上げ軸を2:1の減速比で連結
し、前記布上げ軸で回転される前記布上げ部材を、外周
上に対称的に配設され前記直針が布に突き刺さるとき迄
布を突き上げるタイミング位置を与える第1、第2の突
尖で形成し、前記第1、第2の突尖の一方を他方より周
方向に所定量長く形成し、前記駆動軸に対して前記布上
げ軸を前記周方向に所定量だけ余分に半回転させて前記
タイミング位置を前記第1、第2の突尖の一方より他方
が突き上げ量を少なくする跳び縫い位置に切換える切換
手段を設けたことを特徴とする掬い縫いミシン。
3. A drive shaft rotatably supported by the body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding the cloth, and a cloth passed through an opening formed in the needle plate. A cloth lifting member for pushing up the cloth, and a cloth holding member for holding the cloth pushed up. The needle is pierced into the cloth part which has been pushed up, and the scoop sewing by single thread chain sewing is performed in cooperation with the looper. In the scooping sewing machine, the needle is formed by a straight needle, and a cloth-up shaft for rotating the cloth-up member is supported on a cylinder body having the cloth-up member, and the drive shaft and the cloth-up shaft are connected to each other. The cloth lifting member connected at a speed reduction ratio of 2: 1 and rotated by the cloth raising shaft is symmetrically disposed on the outer periphery and gives a timing position for lifting the cloth until the straight needle pierces the cloth. 1. The first and second protruding points, and the first One of the second prongs is formed to be longer by a predetermined amount in the circumferential direction than the other, and the cloth lifting shaft is further rotated by a predetermined amount in the circumferential direction with respect to the drive shaft, and the timing position is set to the first position. A scooping sewing machine provided with switching means for switching to a jumping sewing position in which the other of the second protruding points has a smaller amount of thrust than the one of the second protruding points.
【請求項4】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、前記針板に穿設された開口
を通して布を突上げる布上げ部材と、突上げられた布を
押える布押え部材とを備えて前記針を突上げられた布部
分に突き刺して前記ルーパとの協働により単糸環縫によ
る掬い縫いを行なう掬い縫いミシンにおいて、前記針を
直針で形成すると共に、前記布上げ部材を備えたシリン
ダ本体に連結され、前記直針の前記布に対する掬い深さ
を加減する掬い深さ調節部を設けたことを特徴とする請
求項1項乃至3項のうち何れか一項記載の掬い縫いミシ
ン。
4. A drive shaft rotatably supported by the main body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding the cloth, and a cloth through an opening formed in the needle plate. A cloth lifting member for pushing up the cloth, and a cloth holding member for holding the cloth pushed up. The needle is pierced into the cloth part which has been pushed up, and the scoop sewing by single thread chain sewing is performed in cooperation with the looper. In the scooping sewing machine, the needle is formed by a straight needle, and a scooping depth adjusting unit that is connected to a cylinder body having the cloth lifting member and that adjusts a scooping depth of the straight needle with respect to the cloth is provided. The scoop sewing machine according to any one of claims 1 to 3, characterized in that:
【請求項5】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、前記針板に穿設された開口
を通して布を突上げる布上げ部材と、突上げられた布を
押える布押え部材と、前記布押え部材を弾撥する布押え
ばねとを備えて前記針を突上げられた布部分に突き刺し
て前記ルーパとの協働により単糸環縫による掬い縫いを
行なう掬い縫いミシンにおいて、前記針を直針で形成す
ると共に、前記押え金を枢着し且つ前記布上げ部材を備
えたシリンダ本体が、前記駆動軸と平行に揺動自在に枢
着部で前記本体フレームに枢着され、前記シリンダ本体
を、前記押え金が前記針板に押圧される方向に弾撥する
シリンダばねを設け、前記布の厚さに応じ前記シリンダ
ばねに抗して前記布上げ部材を前記布の厚さ方向に進退
させる布押えストッパーを設け、かつ、前記布押え部材
は左右布押え部材から形成され、薄地縫いの場合は前記
左布押え部材により、中厚地より厚い縫いの場合は前記
右布押え部材により、前記布上げ部材によって突き上げ
られた布部分を保持する方向に前記布押えばねが弾撥す
ることを特徴とする掬い縫いミシン。
5. A drive shaft rotatably supported by a main body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding the cloth, and a cloth through an opening formed in the needle plate. A cloth lifting member, a cloth presser member for pressing the pushed up cloth, and a cloth presser spring for repelling the cloth presser member. In a scoop sewing machine that performs scoop sewing by single thread chain stitching in cooperation with the above, the cylinder body having the needle formed by straight needles, the presser foot pivotally attached, and the cloth lifting member is provided on the drive shaft. A cylinder spring pivotally attached to the body frame at a pivot portion so as to be swingable in parallel with the cylinder body, and repelling the cylinder body in a direction in which the presser foot is pressed against the needle plate; In response to the cylinder spring A cloth presser stopper for moving the lifting member forward and backward in the thickness direction of the cloth is provided, and the cloth presser member is formed of left and right cloth presser members. In the case of (1), the cloth presser spring is repelled by the right cloth presser in a direction of holding the cloth portion pushed up by the cloth raising member.
【請求項6】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、前記針板に穿設された開口
を通して布を突上げる布上げ部材と、突上げられた布を
押える布押え部材とを備えて前記針を突上げられた布部
分に突き刺して前記ルーパとの協働により単糸環縫によ
る掬い縫いを行なう掬い縫いミシンにおいて、前記針を
直針で形成すると共に、前記針板に穿設された開口に、
前記直針の進入を案内し、かつ前記布上げ部材によって
突上げられた布を前記直針が貫通抵抗により前記直針の
進入方向に伴送されるのを防止する防護部材を設けたこ
とを特徴とする掬い縫いミシン。
6. A drive shaft rotatably supported by the body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding the cloth, and a cloth through an opening formed in the needle plate. A cloth lifting member for pushing up the cloth, and a cloth holding member for holding the cloth pushed up. The needle is pierced into the cloth part which has been pushed up, and the scoop sewing by single thread chain sewing is performed in cooperation with the looper. In a scooping sewing machine, the needle is formed with a straight needle, and an opening formed in the needle plate is
A protection member is provided for guiding the entry of the straight needle, and preventing the cloth pushed up by the cloth lifting member from being entrained in the entry direction of the straight needle due to penetration resistance. A unique scoop sewing machine.
【請求項7】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、前記針板に穿設された開口
を通して布を突上げる布上げ部材と、突上げられた布を
押える布押え部材と、前記開口内を楕円運動し前記布を
縫い方向に送る送り歯とを備えて前記針を突上げられた
布部分に突き刺して前記ルーパとの協働により単糸環縫
による掬い縫いを行なう掬い縫いミシンにおいて、前記
針を直針で形成すると共に、前記送り歯は、前記布の拡
がり方向の、前記布の身頃側が前記布の裾上げ側に比べ
て前記布に向って突出していることを特徴とする掬い縫
いミシン。
7. A drive shaft rotatably supported by the main body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding the cloth, and a cloth passed through an opening formed in the needle plate. A cloth raising member, a cloth pressing member that presses the cloth that has been raised, and a feed dog that moves the cloth elliptically in the opening and feeds the cloth in the sewing direction. In a scoop sewing machine that pierces and cooperates with the looper to perform scoop sewing by single thread chain stitching, the needle is formed by a straight needle, and the feed dog has a body side of the cloth in a direction in which the cloth spreads. A scoop sewing machine, wherein the sewing machine protrudes toward the cloth as compared with a raised side of the cloth.
【請求項8】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針およびルーパと、布を挟
み込む針板および押え金と、前記針板に穿設された開口
を通して布を突上げる布上げ部材と、突上げられた布を
押える布押え部材とを備えて前記針を突上げられた布部
分に突き刺して前記ルーパとの協働により単糸環縫によ
る掬い縫いを行なう掬い縫いミシンにおいて、前記針を
直針で形成すると共に、縫い終了時に縫製物を縫い方向
と逆方向に引出すことにより、前記ルーパに捕捉された
縫い糸を切断するメスを前記開口の前記布の身頃側に設
けたことを特徴とする掬い縫いミシン。
8. A drive shaft rotatably supported by the body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding the cloth, and a cloth passed through an opening formed in the needle plate. A cloth lifting member for pushing up the cloth, and a cloth holding member for holding the cloth pushed up. The needle is pierced into the cloth part which has been pushed up, and the scoop sewing by single thread chain sewing is performed in cooperation with the looper. In the scoop sewing machine, the needle is formed with a straight needle, and at the end of sewing, a scalpel for cutting a sewing thread captured by the looper is pulled out in a direction opposite to a sewing direction at the end of the sewing, so that a scalpel for the cloth at the opening is provided. Scooping sewing machine characterized by being provided on the side.
【請求項9】本体フレームに軸支された駆動軸と、前記
駆動軸により夫々駆動される針並びに縫い糸を捕捉する
剣先、および前記剣先によって捕捉された縫い糸にルー
プを形成して針にループになった縫い糸をからげる小爪
を有するルーパと、布を挟み込む針板および押え金と、
前記針板に穿設された開口を通して布を突上げる布上げ
部材と、突上げられた布を押える布押え部材とを備えて
前記針を突上げられた布部分に突き刺して前記ルーパと
の協働により単糸環縫による掬い縫いを行なう掬い縫い
ミシンにおいて、前記針を直針で形成すると共に、前記
ルーパは、その小爪を軟質材料で形成し、剣先を硬質材
料で形成して取外し自在に前記小爪に取着したことを特
徴とする掬い縫いミシン。
9. A drive shaft pivotally supported by the body frame, a needle driven by the drive shaft and a sword tip for capturing a sewing thread, and a loop formed on the sewing thread captured by the sword tip to form a loop on the needle. A looper having small claws to knit the sewing thread, a needle plate and a presser foot for sandwiching the cloth,
A cloth lifting member that pushes up the cloth through an opening formed in the needle plate; and a cloth holding member that presses up the cloth that has been pushed up. The needle pierces the cloth part that has been pushed up and cooperates with the looper. In a scoop sewing machine that performs scoop stitching by single thread chain stitching by operation, the needle is formed by a straight needle, and the looper is formed by forming a small nail of a soft material, and a sword tip is formed of a hard material and is removable. A scoop sewing machine attached to the small claw.
【請求項10】本体フレームに軸支された駆動軸と、前
記駆動軸により夫々駆動される針およびルーパと、布を
挟み込む針板および押え金と、前記針板に穿設された開
口を通して前記布を突上げる布上げ部材と、突上げられ
た布を押える布押え部材とを備えて針を突上げられた布
部分に突き刺して前記ルーパとの協働により単糸環縫に
よる掬い縫いを行なう掬い縫いミシンにおいて、前記針
を直針で形成すると共に、前記駆動軸と前記直針との間
に前記布の拡がり方向に並行で縫い方向に交叉して少な
くとも縫いを行なうときに前記直針に直線往復運動を与
える駆動機構を設け、この駆動機構はボールと、このボ
ールをOリングを介して包むソケットとから成るユニバ
ーサルジョイントを有することを特徴とする掬い縫いミ
シン。
10. A drive shaft pivotally supported by a main body frame, a needle and a looper respectively driven by the drive shaft, a needle plate and a presser holding a cloth, and an opening formed in the needle plate. A cloth lifting member that pushes up the cloth and a cloth holding member that presses the pushed up cloth are provided, and a needle is pierced into the pushed up cloth portion to perform scooping sewing by single thread chain sewing in cooperation with the looper. In the scoop sewing machine, the needle is formed by a straight needle, and the straight needle is interposed between the drive shaft and the straight needle in a sewing direction at least in a sewing direction in parallel with a spreading direction of the cloth. A scooping sewing machine comprising a drive mechanism for providing a linear reciprocating motion, the drive mechanism having a universal joint consisting of a ball and a socket for wrapping the ball through an O-ring.
JP2077204A 1990-03-27 1990-03-27 Scoop sewing machine Expired - Fee Related JP3045242B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2077204A JP3045242B2 (en) 1990-03-27 1990-03-27 Scoop sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2077204A JP3045242B2 (en) 1990-03-27 1990-03-27 Scoop sewing machine

Publications (2)

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JPH03275096A JPH03275096A (en) 1991-12-05
JP3045242B2 true JP3045242B2 (en) 2000-05-29

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Family Applications (1)

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JP2077204A Expired - Fee Related JP3045242B2 (en) 1990-03-27 1990-03-27 Scoop sewing machine

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0675624B2 (en) * 1992-05-22 1994-09-28 菅原ミシン株式会社 Needle movement mechanism of the sewing machine for scooping

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Publication number Publication date
JPH03275096A (en) 1991-12-05

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