JP2003038886A - Sewing machine with needle threader - Google Patents
Sewing machine with needle threaderInfo
- Publication number
- JP2003038886A JP2003038886A JP2001232911A JP2001232911A JP2003038886A JP 2003038886 A JP2003038886 A JP 2003038886A JP 2001232911 A JP2001232911 A JP 2001232911A JP 2001232911 A JP2001232911 A JP 2001232911A JP 2003038886 A JP2003038886 A JP 2003038886A
- Authority
- JP
- Japan
- Prior art keywords
- threading
- needle
- guide
- hook
- shaft portion
- 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.)
- Granted
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 abstract description 7
- 230000000630 rising effect Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ミシンに装着され
た針孔用の糸通し装置に関するものであり、特に操作レ
バーを下降することにより、フックが装着された糸通し
具が回転しながら下降して針孔にフックを挿通させるこ
とが一連の動作により行うことができ，且つその構造を
簡単にするとともに部品点数を極めて最小限にすること
ができる糸通し装置を備えたミシンに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threading device for a needle hole mounted on a sewing machine, and in particular, by lowering an operating lever, a threading device equipped with a hook is rotated and lowered. The present invention relates to a sewing machine equipped with a threading device capable of inserting a hook into a needle hole by a series of operations, simplifying the structure, and minimizing the number of parts.
【０００２】[0002]
【従来の技術】従来から糸通し装置及び糸通し装置に関
する発明，考案は数多くなされており、糸通し棒が下降
し、針の糸孔位置で回転する機構は存在しているが基本
的に以下の機構によっている。すなわち、糸通しレバー
を下降させると、糸通しレバーに押された糸通し棒が第
１のバネに抗して下降し、ストッパ位置すなわち針糸孔
位置で下降を停止する。2. Description of the Related Art Conventionally, many inventions and devices relating to a threading device and a threading device have been made. A mechanism for lowering a threading rod and rotating at a thread hole position of a needle is available. It depends on the mechanism of. That is, when the threading lever is moved down, the threading rod pushed by the threading lever moves down against the first spring and stops at the stopper position, that is, the needle thread hole position.
【０００３】さらに、糸通しレバーを下降させると糸通
し棒に相対移動が成され、糸通しレバーに敷設されたカ
ムにより糸通し棒が回転する。この方法では、１，２の
バネに効力の序列が必要であるとともに、効力の伝達が
第１のバネから第２のバネに受け渡される時に力の断絶
が発生する。すなわち、二つのバネの相互の伝達が滑ら
かに移動することが困難である。Further, when the threading lever is lowered, the threading rod is relatively moved, and the cam laid on the threading lever rotates the threading rod. In this method, the springs of 1 and 2 require the order of the effect, and a force break occurs when the effect transmission is transferred from the first spring to the second spring. That is, it is difficult for the mutual transmission of the two springs to move smoothly.
【０００４】[0004]
【発明が解決しようとする課題】上述したように、糸通
し装置には、一般的に複数のスプリングが備わってお
り、それぞれのスプリングは所定の役目を果たすように
している。そのなかで、特に糸通し下降工程でフックが
針孔に侵入し、糸を掛けた後、再度針孔から抜け出して
針孔に糸を通す工程で、従来では二つのスプリングが受
け持つものである。As described above, the threading device is generally provided with a plurality of springs, and each spring plays a predetermined role. Among them, in particular, in the step of lowering the threading, the hook enters the needle hole, hangs the thread, then comes out of the needle hole again and passes the thread through the needle hole, and conventionally two springs take charge.
【０００５】しかし、このように一つの工程で、二つ以
上のスプリングが係わると、その動作が断絶したり、途
切れたりする。また、二つのスプリングの弾性も微妙に
変化することから、一連の操作を行う場合に、動作の途
中で係る力が変化し、操作する者にとっては、円滑な操
作が出来にくいものであった。さらに、従来のもので
は、部品点数も多く、構造は複雑で、組立精度も高いも
のが要求されることになり、ひいては極めて高価な部品
となる傾向にあった。However, when two or more springs are involved in one process, the operation is interrupted or interrupted. In addition, since the elasticity of the two springs also changes subtly, the force applied during the series of operations changes during a series of operations, making it difficult for the operator to perform smooth operations. Further, in the conventional device, the number of parts is large, the structure is complicated, and the assembling accuracy is required to be high, so that the parts tend to be extremely expensive.
【０００６】[0006]
【課題を解決するための手段】そこで、発明者は上記課
題を解決すべく鋭意，研究を重ねた結果、本発明を、針
の針孔に糸通しができる針糸通し装置を備えたミシンに
おいて、該針糸通し装置は、垂直状の軸部下端にフック
を装着した糸通し部材が上方の初期位置からフックが針
孔に侵入するための下方の針糸通し可能位置に、手動に
よる操作部材を介して下降する糸通し下降工程と、前記
針糸通し可能位置から前記上方の初期位置に上昇する復
帰上昇工程とを備え、前記糸通し部材と前記操作部材と
は、共に一つの弾性部材のみで復帰上昇し，且つ初期位
置に維持されてなる糸通し装置を備えたミシンとしたこ
とにより、弾性部材以外に第２或いは第３のバネは不要
となる。したがってバネ相互の弾性力の調整もなく、且
つバネ相互の力の引き継ぎも存在しないものであり作業
効率を良好なるものとし、円滑な操作性を実現でき、且
つ構造を極めて簡単にすることができ部品点数を少なく
し、製造工程も少なくなり経済的である。Therefore, as a result of intensive studies by the inventor to solve the above-mentioned problems, the present invention was applied to a sewing machine equipped with a needle threading device capable of threading a needle hole of a needle. In the needle threading device, a threading member having a hook attached to a lower end of a vertical shaft portion is manually operated at a lower needle threading position where the hook enters a needle hole from an upper initial position. A threading descending step of descending through the needle thread and a return rising step of ascending from the needle threading possible position to the upper initial position, and the threading member and the operating member both have only one elastic member. Since the sewing machine is provided with the threading device which is returned to the upper position and is maintained at the initial position, the second or third spring is unnecessary in addition to the elastic member. Therefore, there is no adjustment of elastic force between springs, and there is no transfer of force between springs, which improves work efficiency, realizes smooth operability, and makes the structure extremely simple. It is economical because the number of parts is reduced and the manufacturing process is reduced.
【０００７】また、前記糸通し部材のフックが針糸通し
可能位置にて針孔にフックを侵入させるための糸通し下
降工程において、前記軸部が下降しつつ軸周方向に回動
させるガイド板を有する固定ガイド部材を備え、前記操
作部材は、前記糸通し部材の軸部に軸支されてなる糸通
し装置を備えたミシンとしたことにより、操作部材は、
糸通し部材の軸部を昇降工程の軸心として使用すること
ができ、動作がより一層良好にすることができる。Further, in the threading descending step for allowing the hook of the threading member to enter the needle hole at the needle threadable position, the guide plate for rotating the shaft portion in the axial direction while descending the shaft portion. The operating member includes a fixed guide member having, and the operating member is a sewing machine including a threading device pivotally supported by a shaft portion of the threading member.
The shaft portion of the threading member can be used as the shaft center of the lifting process, and the operation can be further improved.
【０００８】また、前記操作部材の可動ガイド部材付近
には、前記ガイド板が遊挿する被ガイド溝が形成されて
なる糸通し装置を備えたミシンとしたことにより、操作
部材は、前記糸通し部材の軸部に加えてガイド板を昇降
時のガイドとして一層安定した操作状態を実現できる
し、さらに前記固定ガイド部材の下端側付近には、前記
操作部材の軸杆部が遊挿する凹部を形成することによ
り、操作部材のより一層安定した状態にし、その操作性
を格段に良好にすることができる。Further, since the sewing machine is provided with a threading device in which a guided groove into which the guide plate is loosely inserted is formed in the vicinity of the movable guide member of the operating member, the operating member is configured to thread the threading device. In addition to the shaft portion of the member, a more stable operation state can be realized by using the guide plate as a guide when moving up and down. By forming it, the operating member can be made in a more stable state, and its operability can be remarkably improved.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。本発明は、主に、図１に示すよう
に、糸通し部材Ａ，固定ガイド部材Ｂ、操作部材Ｃ及び
針棒支持枠１等から構成される。該針棒支持枠１は、ミ
シン本体内に装着されるものであり、該針棒支持枠１
に、後述する針棒１６，糸通し部材Ａ及び固定ガイド部
材Ｂ等が装着される。前記針棒支持枠１には、糸通し部
材Ａの軸部２を摺動自在に軸支する軸受部１ａが上下方
向に２つ形成されている（図１乃至図３等参照）。ま
た、針棒支持枠１には、ミシン本体内に装着するための
取付部１ｂ，１ｂが形成されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The present invention mainly comprises, as shown in FIG. 1, a threading member A, a fixed guide member B, an operating member C, a needle bar support frame 1 and the like. The needle bar support frame 1 is mounted in the sewing machine main body, and the needle bar support frame 1
A needle bar 16, a threading member A, a fixed guide member B, and the like, which will be described later, are attached to this. The needle bar support frame 1 is provided with two bearing portions 1a vertically supporting the shaft portion 2 of the threading member A (see FIGS. 1 to 3 etc.). Further, the needle bar support frame 1 is formed with mounting portions 1b, 1b for mounting in the sewing machine main body.
【００１０】前記糸通し部材Ａは、軸部２，ガイドピン
３及び糸通し具４とから構成されている。そのガイドピ
ン３は、図４，図５等に示すように、軸部２の軸方向に
おける適宜の箇所に略直角状に貫通して固着され、その
ガイドピン３の両軸端が軸部２の直径方向に突出してい
る。具体的には、軸部２の上方から略１／３付近の箇所
に装着されている。The threading member A is composed of a shaft portion 2, a guide pin 3 and a threading device 4. As shown in FIGS. 4 and 5, etc., the guide pin 3 penetrates and is fixed at an appropriate position in the axial direction of the shaft portion 2 at a substantially right angle, and both shaft ends of the guide pin 3 are attached to the shaft portion 2. Diametrically protruding. Specifically, it is attached to the shaft portion 2 at a position approximately 1/3 from above.
【００１１】前記ガイドピン３は、後述する操作部材Ｃ
を介して軸部２とともに上下方向移動する。その糸通し
具４は、揺動板４ａとフック４ｂとからなり、その揺動
板４ａの自由端側にフック４ｂが形成されている。前記
揺動板４ａが前記軸部２の下端に固着され、軸部２を揺
動中心として揺動板４ａが水平方向に揺動する構造とな
る〔図１，図７（ｂ）等参照〕。The guide pin 3 is an operation member C described later.
It moves up and down together with the shaft portion 2 via. The threading tool 4 includes a swing plate 4a and a hook 4b, and a hook 4b is formed on the free end side of the swing plate 4a. The swing plate 4a is fixed to the lower end of the shaft portion 2 so that the swing plate 4a swings horizontally about the shaft portion 2 as a swing center [see FIGS. 1 and 7 (b), etc.]. .
【００１２】前記ガイドピン３と、糸通し具４の揺動板
４ａとは、所定の角度をなしてそれぞれ装着される。上
記ガイドピン３と揺動板４ａとのなす角度は、固定ガイ
ド部材Ｂのガイド溝部７とガイドピン３とにより決定さ
れる軸部２の回動角度により決定されるものである。そ
の軸部２には、図１乃至図５等に示すように、弾性部材
５が装着されている。該弾性部材５は、具体的にはコイ
ルスプリング等であり、該コイルスプリングに前記軸部
２が挿通している。その弾性部材５によって、軸部２は
ガイドピン３とともに常時上方に弾性的に付勢されてい
る。また、軸部２の下端に固着された糸通し具４も常
時，上方に位置していることになる。The guide pin 3 and the rocking plate 4a of the threading device 4 are mounted at a predetermined angle. The angle formed by the guide pin 3 and the swing plate 4a is determined by the rotation angle of the shaft portion 2 determined by the guide groove portion 7 of the fixed guide member B and the guide pin 3. An elastic member 5 is attached to the shaft portion 2 as shown in FIGS. 1 to 5. The elastic member 5 is specifically a coil spring or the like, and the shaft portion 2 is inserted into the coil spring. The shaft member 2 is always elastically urged upward together with the guide pin 3 by the elastic member 5. Further, the threading tool 4 fixed to the lower end of the shaft portion 2 is always located above.
【００１３】その針棒支持枠１には、固定ガイド部材Ｂ
が装着される。該固定ガイド部材Ｂは、図１，図２，図
４等に示すように、ガイド板６と、該ガイド板６に形成
されたガイド溝部７により構成されたものである。その
ガイド板６は、図４に示すように、ガイド主板６ａと該
ガイド主板６ａの上下端に形成された取付支持部６ｂ，
６ｂとから構成される。ガイド主板６は、板片状をな
し、その板面に前記ガイド溝部７が形成されている。A fixed guide member B is attached to the needle bar support frame 1.
Is installed. As shown in FIG. 1, FIG. 2, FIG. 4, etc., the fixed guide member B is composed of a guide plate 6 and a guide groove portion 7 formed in the guide plate 6. As shown in FIG. 4, the guide plate 6 includes a guide main plate 6a and mounting support portions 6b formed on the upper and lower ends of the guide main plate 6a.
6b and. The guide main plate 6 has a plate piece shape, and the guide groove portion 7 is formed on the plate surface thereof.
【００１４】また、取付支持部６ｂ，６ｂは、ガイド板
６を前記針棒支持枠１に装着するもので、図１に示すよ
うに、取付支持部６ｂ，６ｂに針棒１６を貫通状態で装
着される。その取付支持部６ｂ，６ｂの下方側には、図
４に示すように、凹部６ｃが形成されている。該凹部６
ｃは、前記ガイド主板６ａと取付支持部６ｂとの間に溝
状に形成されたものである。前記凹部６ｃには、後述す
る操作部材Ｃの軸杆部１１ｂが摺動自在に装着される。
前記取付支持部６ｂの上方側には、前記軸部２が摺動自
在に貫通する支持孔６ｂ1 が形成され、前記軸部２を介
して糸通し部材Ａを昇降可能に支持している（図３参
照）。さらに、取付支持部６ｂ，６ｂには、前記針棒支
持枠１に取り付けるための取付孔６ｂ2 ，６ｂ2 が形成
され、該取付孔６ｂ2 ，６ｂ2 に針棒１６を挿通させ
て、針棒支持枠１に連結される。The mounting support portions 6b, 6b are for mounting the guide plate 6 on the needle bar support frame 1. As shown in FIG. 1, the mounting support portions 6b, 6b have the needle bar 16 penetrating therethrough. It is installed. As shown in FIG. 4, a recess 6c is formed on the lower side of the mounting support portions 6b, 6b. The recess 6
Reference character c is formed in a groove shape between the guide main plate 6a and the mounting support portion 6b. A shaft rod portion 11b of an operation member C described later is slidably mounted in the recess 6c.
A support hole 6b 1 through which the shaft portion 2 slidably penetrates is formed on the upper side of the mounting support portion 6b, and supports the threading member A so that the threading member A can be moved up and down via the shaft portion 2 ( (See FIG. 3). Furthermore, mounting support 6b, the 6b, and the needle bar support frame mounting hole 6b 2 for attachment to 1, 6b 2 is formed, by inserting the needle bar 16 to the mounting hole 6b 2, 6b 2, the needle It is connected to the rod support frame 1.
【００１５】次に、ガイド溝部７は、図１（ａ），
（ｂ）に示すように、前記糸通し部材Ａのガイドピン３
が挿通し、該ガイドピン３がそのガイド溝部７に沿って
揺動しつつ上下方向に移動することができるものであ
る。該ガイド溝部７は、図７（ａ）に示すように、上方
から垂直状溝７ａ，角度変移溝７ｂ及びセット溝７ｃの
構成になって連続的に形成されている。その垂直状溝７
ａでは、ガイドピン３が水平方向に揺動しない状態で上
下方向にのみ移動することができる。次に、角度変移溝
７ｂでは、ガイドピン３は、水平方向に回動しつつ上下
方向に移動する。Next, the guide groove portion 7 is formed as shown in FIG.
As shown in (b), the guide pin 3 of the threading member A
Is inserted, and the guide pin 3 can move vertically while swinging along the guide groove portion 7. As shown in FIG. 7 (a), the guide groove portion 7 is formed continuously from the upper side in a vertical groove 7a, an angle shift groove 7b and a set groove 7c. The vertical groove 7
In a, the guide pin 3 can move only in the vertical direction without swinging in the horizontal direction. Next, in the angle shift groove 7b, the guide pin 3 moves in the vertical direction while rotating in the horizontal direction.
【００１６】その角度変移溝７ｂは、前記垂直状溝７ａ
に対して僅かの傾斜角度をなしている。また、セット溝
７ｃは、前記角度変移溝７ｂに連続しており、略長方形
状の貫通孔で、ガイドピン３を介して前記糸通し部材Ａ
の糸通し具４を所定位置に回動させる役目をなすもので
ある。そのガイド溝部７は、挿通するガイドピン３によ
り軸部２が回動して糸通し具４の揺動板４ａのフック４
ｂが針棒１６に装着された針１７の針孔１７ａに向かっ
て移動するようにしたものである。そして、角度変移溝
７ｂによって、ガイドピン３が水平方向に回動を開始
し、セット溝７ｃにより、フック４ｂが針孔１７ａに侵
入するものである。この侵入とは、フック４ｂが針孔１
７ａに挿入し、また挿入した状態から外れる出入可能な
状態の意味が含まれている〔図１（ｃ）参照〕。The angle changing groove 7b is the vertical groove 7a.
It has a slight inclination angle with respect to. Further, the set groove 7c is continuous with the angle changing groove 7b, is a substantially rectangular through hole, and is provided with the threading member A through the guide pin 3.
It serves to rotate the threading device 4 to a predetermined position. In the guide groove portion 7, the shaft portion 2 is rotated by the guide pin 3 to be inserted, and the hook 4 of the swing plate 4 a of the threading device 4 is inserted.
b is moved toward the needle hole 17a of the needle 17 attached to the needle bar 16. The angle changing groove 7b causes the guide pin 3 to start rotating in the horizontal direction, and the setting groove 7c causes the hook 4b to enter the needle hole 17a. This intrusion means that the hook 4b is the needle hole 1
7a includes a meaning of a state in which it can be inserted into and removed from 7a and can be moved in and out of the inserted state [see FIG. 1 (c)].
【００１７】前記ガイド溝部７の角度変移溝７ｂは、図
７（ａ）に示すように、前記垂直状溝７ａに対して僅か
に傾斜状態に形成されており、軸部２に装着されたガイ
ドピン３は、その傾斜状に角度変移溝７ｂに沿って上下
方向に移動するにあたり、ガイドピン３は回動する。該
ガイドピン３の回動が軸部２に伝達し、軸部２が回動
し、該軸部２とともに揺動板４ａが回動するものであ
る。そのセット溝７ｃは、角度変移溝７ｂの下端に存在
し、角度変移溝７ｂの下端よりその傾斜方向に沿って水
平方向に拡開する溝となっている。As shown in FIG. 7A, the angle changing groove 7b of the guide groove portion 7 is formed in a slightly inclined state with respect to the vertical groove 7a, and is attached to the shaft portion 2. When the pin 3 moves in the vertical direction along the angle changing groove 7b in the inclined shape, the guide pin 3 rotates. The rotation of the guide pin 3 is transmitted to the shaft portion 2, the shaft portion 2 rotates, and the swing plate 4a rotates together with the shaft portion 2. The set groove 7c exists at the lower end of the angle changing groove 7b, and is a groove that expands horizontally from the lower end of the angle changing groove 7b along the inclination direction thereof.
【００１８】次に、操作部材Ｃは、図１，図３等に示す
ように、前記固定ガイド部材Ｂに対して上下方向に移動
自在に装着されている。その操作部材Ｃは、可動ベース
部８，可動ガイド部９，被ガイド溝１０及びレバー操作
部１１とから構成されている。その可動ベース部８は、
図５（ａ）に示すように、前記軸部２が挿通する軸孔８
ａが形成され、図２（ｂ），図３等に示すように、該軸
孔８ａを介して可動ベース部８が前記軸部２に軸支され
るようになっている。Next, the operating member C is mounted on the fixed guide member B so as to be movable in the vertical direction, as shown in FIGS. The operating member C includes a movable base portion 8, a movable guide portion 9, a guided groove 10 and a lever operating portion 11. The movable base portion 8 is
As shown in FIG. 5A, the shaft hole 8 into which the shaft portion 2 is inserted is inserted.
2a, 3 and the like, the movable base portion 8 is pivotally supported by the shaft portion 2 via the shaft hole 8a.
【００１９】また、操作部材Ｃは、図４，図５等に示す
ように、前記可動ベース部８に隣接して可動ガイド部９
が一体的成形されている。前記可動ベース部８と前記可
動ガイド部９との間に被ガイド溝１０が形成されてい
る。該被ガイド溝１０には、前記固定ガイド部材Ｂのガ
イド板６を挟持する部位であり、操作部材Ｃが上下動す
るときのガイドを構成する。前記可動ベース部８の軸孔
８ａに前記軸部２が挿通して、可動ベース部８が糸通し
部材Ａに連結され、その可動ベース部８の直下に前記弾
性部材５が配置され、可動ベース部８を上方に付勢して
いる。As shown in FIGS. 4 and 5, the operating member C is adjacent to the movable base portion 8 and is adjacent to the movable guide portion 9.
Are integrally molded. A guided groove 10 is formed between the movable base portion 8 and the movable guide portion 9. The guided groove 10 is a portion for sandwiching the guide plate 6 of the fixed guide member B, and constitutes a guide when the operating member C moves up and down. The shaft portion 2 is inserted into the shaft hole 8a of the movable base portion 8, the movable base portion 8 is connected to the threading member A, and the elastic member 5 is arranged immediately below the movable base portion 8 to form the movable base portion. The portion 8 is biased upward.
【００２０】すなわち、コイルスプリングタイプの弾性
部材５には、図３，図５（ｂ）等に示すように、軸部２
が挿通し、その弾性部材５の上端は前記可動ベース部８
に当接した状態となり、また弾性部材５の下端は固定ガ
イド部材Ｂの下方側の取付支持部６ｂに当接し、前記可
動ベース部８を常時上方に押圧し、該可動ベース部８と
ともに可動ガイド部９も上方に位置している。そして、
可動ガイド部９を介してガイドピン３とともに糸通し部
材Ａが上方に付勢され、上方の位置に維持される。That is, as shown in FIGS. 3 and 5B, the coil spring type elastic member 5 has a shaft portion 2
Is inserted, and the upper end of the elastic member 5 has the movable base portion 8
And the lower end of the elastic member 5 abuts on the mounting support portion 6b on the lower side of the fixed guide member B to constantly push the movable base portion 8 upward, so that the movable base portion 8 and the movable guide portion 8 move together. The part 9 is also located above. And
The threading member A is urged upward together with the guide pin 3 through the movable guide portion 9 and maintained at the upper position.
【００２１】また、可動ガイド部９には、図１乃至図５
等に示すように、長孔部９ａが形成され、該長孔部９ａ
に前記ガイドピン３が挿通し、該ガイドピン３を上下方
向に移動させるとともに、糸通し部材Ａを上下方向に移
動させるものである。その長孔部９ａは、適宜な角度で
傾斜している。該長孔部９ａの傾斜角度は、具体的には
略４５度程度であるが、この数値に限定されるものでは
なく、適宜に設定されることもある。また、該長孔部９
ａの傾斜方向は、前記ガイド溝部７の角度変移溝７ｂの
傾斜方向と反対方向となっている。Further, the movable guide portion 9 has a structure shown in FIGS.
Etc., the long hole portion 9a is formed, and the long hole portion 9a is formed.
The guide pin 3 is inserted through the guide pin 3 to move the guide pin 3 in the vertical direction and the threading member A in the vertical direction. The long hole 9a is inclined at an appropriate angle. The inclination angle of the long hole portion 9a is specifically about 45 degrees, but is not limited to this value and may be set appropriately. In addition, the long hole 9
The inclination direction of a is opposite to the inclination direction of the angle shift groove 7b of the guide groove portion 7.
【００２２】その長孔部９ａが前記角度変移溝７ｂの傾
斜方向と反対方向に傾斜状に形成されることにより、前
記長孔部９ａが角度変移溝７ｂの領域を下降するとき
に、ガイドピン３の水平方向における回動速度を適宜に
調整する役目をなしている。そのガイドピン３の回動速
度は長孔部９ａの傾斜が大きければ遅くなり、小さけれ
ば早くなる。すなわち、軸部２及び前記揺動板４ａの回
動速度は長孔部９ａの傾斜角度により決定される。ま
た、長孔部９ａは、特に図示しないが、水平状に形成さ
れた実施例も存在する。なお、該長孔部９ａが水平状で
ある場合には、ガイドピン３の回動速度が最も早くなる
ことになる。Since the elongated hole 9a is formed in an inclined shape in the direction opposite to the inclined direction of the angle changing groove 7b, when the elongated hole 9a descends in the area of the angle changing groove 7b, the guide pin is formed. It serves to properly adjust the rotational speed of the No. 3 in the horizontal direction. The rotation speed of the guide pin 3 becomes slower when the inclination of the elongated hole 9a is large, and becomes faster when it is small. That is, the rotational speeds of the shaft portion 2 and the rocking plate 4a are determined by the inclination angle of the elongated hole portion 9a. In addition, although there is no particular illustration, the slot 9a also has an embodiment in which it is formed horizontally. When the elongated hole 9a is horizontal, the rotation speed of the guide pin 3 is the highest.
【００２３】次に、操作レバー部１１は、操作撮み部１
１ａと、軸杆部１１ｂとから構成されている。該軸杆部
１１ｂは、前記可動ベース部８の下端から垂直状に形成
された部位であり、前記軸杆部１１ｂの下端に操作撮み
部１１ａが形成されている。該操作撮み部１１ａは、作
業員の指先で押さえて、糸通し部材Ａに糸通し下降工程
を行わせる。操作部材Ｃは前記固定ガイド部材Ｂに上下
動可能に装着されるものであるが、まず操作部材Ｃの被
ガイド溝１０に固定ガイド部材Ｂのガイド板６を挿入さ
せる。そして次に、操作部材Ｃの軸杆部１１ｂを固定ガ
イド部材Ｂ側の凹部６ｃに挿入する。前記操作部材Ｃ
は、固定ガイド部材Ｂのガイド板６を昇降ガイドの役目
とし、また凹部６ｃに軸杆部１１ｂが挿入することで、
昇降動作を安定した状態にする。図６（ａ），（ｂ），
（ｃ）は、本発明の頂部側から見た平面図及びそれぞれ
の断面図である。Next, the operation lever portion 11 is the operation photographing portion 1
1a and a shaft rod portion 11b. The shaft rod portion 11b is a portion formed vertically from the lower end of the movable base portion 8, and an operation photographing portion 11a is formed at the lower end of the shaft rod portion 11b. The operation photographing section 11a presses the operator's fingertip to cause the threading member A to perform the threading descending step. The operation member C is mounted on the fixed guide member B so as to be vertically movable. First, the guide plate 6 of the fixed guide member B is inserted into the guided groove 10 of the operation member C. Then, next, the shaft rod portion 11b of the operation member C is inserted into the concave portion 6c on the fixed guide member B side. The operation member C
By using the guide plate 6 of the fixed guide member B as an elevating guide and inserting the shaft rod portion 11b into the recess 6c,
Make the lifting operation stable. 6 (a), (b),
(C) is the top view and each sectional view seen from the top side of the present invention.
【００２４】その針棒１６（又は針棒支持枠１）には、
図１（ｂ），図２，図４等に示すように、位置決め部材
１３が装着されている。該位置決め部材１３は、前記糸
通し具４が前記針棒１６に装着された針１７の針孔１７
ａ位置に達すると、前記ガイドピン３が当接し、軸部２
の下降を停止させ、該軸部２を軸周方向に回動させる役
目をなすものである。その位置決め部材１３は、図４に
示すように、略垂直板状をなしており、前記ガイドピン
３が下降動作時に当接する停止突起片１３ａと、前記ガ
イドピン３が遊挿する保持溝１３ｂと、針棒１６に装着
するための連結部１３ｃとから構成されている。前記停
止突起片１３ａから保持溝１３ｂ内部までは、略水平状
に連続している。The needle bar 16 (or needle bar support frame 1) has
As shown in FIG. 1B, FIG. 2, FIG. 4, etc., a positioning member 13 is attached. The positioning member 13 has a needle hole 17 of a needle 17 in which the threading tool 4 is attached to the needle bar 16.
When the position a is reached, the guide pin 3 comes into contact with the shaft 2
To stop the lowering of the shaft and rotate the shaft portion 2 in the axial direction. As shown in FIG. 4, the positioning member 13 has a substantially vertical plate shape, and includes a stop projection piece 13a with which the guide pin 3 abuts when the guide pin 3 descends, and a holding groove 13b into which the guide pin 3 is loosely inserted. , And a connecting portion 13c for mounting on the needle bar 16. The stop projection 13a and the inside of the holding groove 13b are continuous in a substantially horizontal shape.
【００２５】その位置決め部材１３の停止突起片１３ａ
と、保持溝１３ｂとは、フック４ｂが針孔１７ａに侵入
できる位置を定めるとともに、フック４ｂの針孔１７ａ
への出没動作時には、ガイドピン３が上下方向の動作を
抑制し、フック４ｂや針１７等の破損を防止するもので
ある。その位置決め部材１３の連結部１３ｃは、針孔１
７ａの高さの変化に対して、ガイドピン３の下降停止位
置が対応できるように、前記針棒１６の軸方向の適宜の
位置に固定することが可能となるようにビス等の固着具
を介して固着することができるようになっている。Stop projection piece 13a of the positioning member 13
And the holding groove 13b determine the position where the hook 4b can enter the needle hole 17a, and the holding hole 13a of the hook 4b.
The guide pin 3 restrains the vertical movement of the hook 4b and the needle 17 at the time of moving in and out of the hook 4b. The connecting portion 13c of the positioning member 13 has a needle hole 1
A fixing tool such as a screw can be fixed to an appropriate position in the axial direction of the needle bar 16 so that the lowering stop position of the guide pin 3 can correspond to the change of the height of 7a. It can be fixed through.
【００２６】まず、レバー操作部１１を下降させること
により、可動ガイド部９，及び該可動ガイド部９の長孔
部９ａに遊挿しているガイドピン３が下降し、前記ガイ
ドピン３を介して軸部２が下降する。このとき、前記軸
部２は、ガイドピン３がガイド溝７に沿って下降するこ
とにより、角度変移溝７ｂ箇所で軸部２が軸周方向にも
回動しつつ下降する。そして、ガイドピン３がガイド溝
７の最下部のセット溝７ｃに到達すると、前記ガイドピ
ン３は、位置決め部材１３の停止突起片１３ａに当接し
て下降動作を停止するとともに、保持溝１３ｂに向かっ
て水平方向に回動する。そして、そのガイドピン３の回
動に伴って揺動板４ａが揺動し、フック４ｂが針孔１７
ａに侵入し、糸通しができる状態となる。First, by lowering the lever operating portion 11, the movable guide portion 9 and the guide pin 3 loosely inserted in the long hole portion 9a of the movable guide portion 9 are lowered, and the guide pin 3 is used. The shaft portion 2 descends. At this time, the shaft portion 2 descends while the guide pin 3 descends along the guide groove 7 so that the shaft portion 2 also rotates in the axial direction at the position of the angle shift groove 7b. Then, when the guide pin 3 reaches the lowermost set groove 7c of the guide groove 7, the guide pin 3 comes into contact with the stop projection piece 13a of the positioning member 13 to stop the descending operation and moves toward the holding groove 13b. Rotate horizontally. Then, the swing plate 4a swings with the rotation of the guide pin 3, and the hook 4b moves into the needle hole 17.
It enters into a and is ready for threading.
【００２７】前記レバー操作部１１が解除されれば、ガ
イドピン３は回動し、前記保持溝１３ｂから抜け出して
上昇動作に移る。このように、位置決め部材１３によっ
てフック４ｂが針孔１７ａに侵入できる位置を定め、フ
ック４ｂの針孔１７ａへの出没動作時には、ガイドピン
３が上下方向の動作を抑制し、フック４ｂや針１７等の
破損を防止するものである。When the lever operating portion 11 is released, the guide pin 3 is rotated to come out of the holding groove 13b and move up. In this way, the positioning member 13 determines the position where the hook 4b can enter the needle hole 17a, and when the hook 4b moves in and out of the needle hole 17a, the guide pin 3 suppresses the vertical movement, so that the hook 4b and the needle 17 can be prevented. It prevents damage such as.
【００２８】上記位置決め部材１３の動作は、まず操作
レバー部１１を下降させると可動ガイド部９も下降し、
該可動ガイド部９の長孔部９ａに遊挿しているガイドピ
ン３が可動ガイド部９とともに下降し、前記ガイドピン
３を介して軸部２が下降する。このとき、該軸部２は、
ガイドピン３がガイド溝部７に沿って下降することによ
り、角度変移溝７ｂ箇所で軸部２が軸周方向にも回動し
つつ下降する。そして、ガイドピン３がガイド溝部７の
最下部のセット溝７ｃに達したときには、糸通し具４の
フック４ｂは針孔１７ａに侵入する。そして、前記操作
レバー部１１の操作を解除すると、前記弾性部材５の復
元力により軸部２がガイドピン３が可動し、前記針孔１
７ａからフック４ｂが侵入状態から外れ、針孔１７ａに
糸が通るものである。Regarding the operation of the positioning member 13, first, when the operation lever portion 11 is lowered, the movable guide portion 9 is also lowered,
The guide pin 3 loosely inserted in the elongated hole portion 9a of the movable guide portion 9 descends together with the movable guide portion 9, and the shaft portion 2 descends via the guide pin 3. At this time, the shaft portion 2 is
When the guide pin 3 descends along the guide groove portion 7, the shaft portion 2 also descends while rotating in the axial circumferential direction at the position of the angle shift groove 7b. Then, when the guide pin 3 reaches the lowermost set groove 7c of the guide groove portion 7, the hook 4b of the threading device 4 enters the needle hole 17a. Then, when the operation of the operation lever portion 11 is released, the restoring force of the elastic member 5 causes the shaft portion 2 to move the guide pin 3 and the needle hole 1
The hook 4b comes out of the intruded state from 7a, and the thread passes through the needle hole 17a.
【００２９】[0029]
【作用】まず、糸通し部材Ａは、未使用時は弾性部材５
により上方の初期位置に位置し、操作部材Ｃも糸通し部
材Ａのガイドピン３により上方に位置している。まず、
操作レバー部１１の操作撮み部１１ａを手動により下降
すると、操作部材Ｃの長孔部９ａに挿通するガイドピン
３を介して糸通し部材Ａが下降する糸通し下降工程とな
る。The threading member A is the elastic member 5 when not in use.
Is located at the upper initial position, and the operating member C is also located above the guide pin 3 of the threading member A. First,
When the operation photographing portion 11a of the operation lever portion 11 is manually lowered, the threading lowering step is performed in which the threading member A is lowered via the guide pin 3 which is inserted into the elongated hole portion 9a of the operation member C.
【００３０】その糸通し部材Ａが下降工程において、前
記固定ガイド部材Ｂのガイド溝部７と操作部材Ｃの長孔
部９ａとが交差する箇所にガイドピン３が挿通し、ガイ
ド溝部７の角度変移溝７ｂに沿って降下すると共にガイ
ドピン３が水平面上を揺動する。そのガイドピン３の水
平面上の揺動動作により、軸部２は軸周方向に回動しつ
つ降下する。従って、軸部２の下端に装着された糸通し
具４の揺動板４ａが軸部２の回動に伴って揺動する。そ
の揺動板４ａの先端にはフック４ｂが装着されており、
その揺動板４ａの回動によりフック４ｂが針孔１７ａに
侵入するものである。In the lowering step of the threading member A, the guide pin 3 is inserted into a position where the guide groove portion 7 of the fixed guide member B and the elongated hole portion 9a of the operating member C intersect, and the angle of the guide groove portion 7 changes. The guide pin 3 swings on a horizontal plane while descending along the groove 7b. By the swinging motion of the guide pin 3 on the horizontal plane, the shaft portion 2 is lowered while rotating in the circumferential direction of the shaft. Therefore, the swing plate 4a of the threading tool 4 attached to the lower end of the shaft portion 2 swings as the shaft portion 2 rotates. A hook 4b is attached to the tip of the swing plate 4a,
The rotation of the swing plate 4a causes the hook 4b to enter the needle hole 17a.
【００３１】次に、操作部材Ｃを下方への押さえを緩め
ると、前記弾性部材５の復元力を介して、操作部材Ｃと
ともに糸通し部材Ａの上昇が開始され、針糸通し可能位
置から前記上方の初期位置に上昇する復帰上昇工程に移
る。このときに、前記糸通し具４は、軸部２を中心にし
て揺動し、フック４ｂが針孔１７ａから抜け出して、針
孔１７ａの糸通しが完了し、且つ糸通し部材Ａは初期位
置に戻る。Next, when the operation member C is loosened downward, the threading member A starts to rise together with the operation member C via the restoring force of the elastic member 5, and the needle threading position is reached from the above position. The process goes to the returning and ascending process of ascending to the upper initial position. At this time, the threading device 4 swings around the shaft portion 2, the hook 4b comes out of the needle hole 17a, threading of the needle hole 17a is completed, and the threading member A is in the initial position. Return to.
【００３２】[0032]
【発明の効果】本発明によれば、糸通し棒の下降及び回
転をカム面の組み合わせで行うことにより、弾性部材５
以外に第２のバネは不要となり、針孔１７ａ付近までに
至間にフック４ｂが針孔１７ａに近接するように回動す
るものであり、また針棒１６の関係部品の突起等に緩衝
されることなく、下降することができる。According to the present invention, the elastic member 5 is moved by lowering and rotating the threading rod with a combination of cam surfaces.
In addition, the second spring is not required, and the hook 4b is swung so as to approach the needle hole 17a in a short time before the vicinity of the needle hole 17a. You can descend without
【００３３】さらに、第２のバネが存在しないので、糸
通しレバーに弾性部材５がかかることによって、レバー
下降のために加える力は滑らかで、作業効率が良好にな
る。また、本発明では、一つの弾性部材５が糸通し部材
Ａと操作部材Ｃとを針糸通し可能位置から前記上方の初
期位置に上昇する復帰上昇工程へ移動させることがで
き、且つ操作部材Ｃを構成する部材を一体的に形成でき
ることにより、部品点数を少なくし、製造工程も少なく
なり経済的である。Further, since there is no second spring, the elastic member 5 is applied to the threading lever, so that the force applied for lowering the lever is smooth and the working efficiency is improved. Further, in the present invention, one elastic member 5 can move the threading member A and the operating member C to the returning and raising step of raising from the needle threading possible position to the upper initial position and the operating member C. Since the members constituting the above can be integrally formed, the number of parts is reduced and the manufacturing process is reduced, which is economical.
【図１】（ａ）は糸通し部材が上方の初期位置の状態を
示す斜視図
（ｂ）は糸通し部材が下方の位置でフックが針孔に侵入
した状態を示す斜視図
（ｃ）はフックが針孔に挿入した状態を示す要部拡大斜
視図1A is a perspective view showing a state where a threading member is in an upper initial position, and FIG. 1B is a perspective view showing a state where a hook has entered a needle hole while the threading member is in a lower position. Main part enlarged perspective view showing the state where the hook is inserted in the needle hole
【図２】（ａ）は本発明の正面図 （ｂ）は本発明の一部断面にした側面図FIG. 2A is a front view of the present invention. (B) is a side view of the present invention with a partial cross section.
【図３】本発明の一部断面にした正面図FIG. 3 is a partially sectional front view of the present invention.
【図４】本発明を構成する部材の分解斜視図FIG. 4 is an exploded perspective view of members constituting the present invention.
【図５】（ａ）は操作部材の斜視図
（ｂ）は固定ガイド部材と操作部材とを組み合わせた状
態の斜視図5A is a perspective view of an operating member, and FIG. 5B is a perspective view of a state in which a fixed guide member and an operating member are combined.
【図６】（ａ）は本発明の平面図 （ｂ）は図２のＸ1 −Ｘ1 矢視断面図 （ｃ）は図２のＸ2 −Ｘ2 矢視断面図6A is a plan view of the present invention, FIG. 6B is a sectional view taken along line X 1 -X 1 of FIG. 2, and FIG. 6C is a sectional view taken along line X 2 -X 2 of FIG.
【図７】（ａ）はガイド板の正面図 （ｂ）はフックの揺動動作を示す斜視図FIG. 7A is a front view of a guide plate. (B) is a perspective view showing the swinging motion of the hook.
Ａ…糸通し部材 Ｂ…固定ガイド部材 ２…軸部 ４…糸通し具 ４ｂ…フック １１…操作レバー部 １６…針棒 １７ａ…針孔 A ... Threading member B: Fixed guide member 2 ... Shaft 4 ... Threading tool 4b ... hook 11 ... Operation lever section 16 ... Needle bar 17a ... Needle hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 近江屋 光史郎 東京都中央区京橋３丁目１番１号 蛇の目 ミシン工業株式会社内 Ｆターム(参考） 3B150 CD05 CE01 CE23 CE25 FJ01 FJ04 JA19 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Koshiro Omiya 3-1-1 Kyobashi, Chuo-ku, Tokyo Within Sewing Industry Co., Ltd. F term (reference) 3B150 CD05 CE01 CE23 CE25 FJ01 FJ04 JA19
Claims (4)
を備えたミシンにおいて、該針糸通し装置は、垂直状の
軸部下端にフックを設けた糸通し部材が上方の初期位置
から前記フックが針孔に侵入するための下方の針糸通し
可能位置に、手動による操作部材を介して下降する糸通
し下降工程と、前記針糸通し可能位置から前記上方の初
期位置に上昇する復帰上昇工程とを備え、前記糸通し部
材と前記操作部材とは、共に一つの弾性部材のみで復帰
上昇し，且つ初期位置に維持されてなることを特徴とす
る糸通し装置を備えたミシン。1. A sewing machine having a needle threading device capable of threading through a needle hole of a needle, wherein the needle threading device has a threading member having a hook at a lower end of a vertical shaft portion, and an upper initial position of the threading member. From the above to the lower position where the hook can penetrate the needle hole to the lower position where the needle thread can be passed through a manually operated member, and the needle thread passing position is raised to the above initial position. A sewing machine provided with a threading device, characterized in that the threading member and the operating member both return and ascend with only one elastic member and are maintained at an initial position.
が下降しつつ軸周方向に回動させるガイド板を有する固
定ガイド部材を備え、前記操作部材は、前記糸通し部材
の軸部に軸支されてなることを特徴とする請求項１に記
載の糸通し装置を備えたミシン。2. In the threading descending step, a fixed guide member having a guide plate for rotating the shaft portion in the circumferential direction of the shaft while descending is provided, and the operating member is attached to the shaft portion of the threading member. A sewing machine provided with the threading device according to claim 1, which is supported.
ド板が遊挿する被ガイド溝が形成されてなることを特徴
とする請求項２に記載の糸通し装置を備えたミシン。3. The sewing machine with a threading device according to claim 2, wherein a guided groove into which the guide plate is loosely inserted is formed near the upper portion of the operating member.
記操作部材が上下動可能に支持する凹部が形成されてな
ることを特徴とする請求項２又は３に記載の糸通し装置
を備えたミシン。4. The threading device according to claim 2, wherein a concave portion for supporting the operation member so as to be vertically movable is formed near a lower portion of the fixed guide member. sewing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001232911A JP5132020B2 (en) | 2001-07-31 | 2001-07-31 | Sewing machine with threading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001232911A JP5132020B2 (en) | 2001-07-31 | 2001-07-31 | Sewing machine with threading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003038886A true JP2003038886A (en) | 2003-02-12 |
| JP5132020B2 JP5132020B2 (en) | 2013-01-30 |
Family
ID=19064755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001232911A Expired - Fee Related JP5132020B2 (en) | 2001-07-31 | 2001-07-31 | Sewing machine with threading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5132020B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011240051A (en) * | 2010-05-20 | 2011-12-01 | Janome Sewing Mach Co Ltd | Needle threader for sawing machine |
| CN103774356A (en) * | 2013-12-20 | 2014-05-07 | 宁波瑞铭机械有限公司 | Automatic threading device for sewing machine |
| CN112877933A (en) * | 2021-01-07 | 2021-06-01 | 宫玲 | Cotton thread needle feeding device for textile processing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6718188B1 (en) | 2019-11-28 | 2020-07-08 | 株式会社鈴木製作所 | Sewing machine threading device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55161466A (en) * | 1979-06-02 | 1980-12-16 | Ricoh Co Ltd | Gamma correction method and unit in picture input/output system |
| JPH0654980A (en) * | 1992-08-12 | 1994-03-01 | Janome Sewing Mach Co Ltd | Threading device of sewing machine |
| JPH0910464A (en) * | 1995-06-30 | 1997-01-14 | Aisin Seiki Co Ltd | Thread running device of sewing machine |
-
2001
- 2001-07-31 JP JP2001232911A patent/JP5132020B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55161466A (en) * | 1979-06-02 | 1980-12-16 | Ricoh Co Ltd | Gamma correction method and unit in picture input/output system |
| JPH0654980A (en) * | 1992-08-12 | 1994-03-01 | Janome Sewing Mach Co Ltd | Threading device of sewing machine |
| JPH0910464A (en) * | 1995-06-30 | 1997-01-14 | Aisin Seiki Co Ltd | Thread running device of sewing machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011240051A (en) * | 2010-05-20 | 2011-12-01 | Janome Sewing Mach Co Ltd | Needle threader for sawing machine |
| CN103774356A (en) * | 2013-12-20 | 2014-05-07 | 宁波瑞铭机械有限公司 | Automatic threading device for sewing machine |
| CN112877933A (en) * | 2021-01-07 | 2021-06-01 | 宫玲 | Cotton thread needle feeding device for textile processing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5132020B2 (en) | 2013-01-30 |
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