JP2007222240A

JP2007222240A - Bobbin holder

Info

Publication number: JP2007222240A
Application number: JP2006044401A
Authority: JP
Inventors: Toshihiko Ota; 年彦太田
Original assignee: Barudan Co Ltd
Current assignee: Barudan Co Ltd
Priority date: 2006-02-21
Filing date: 2006-02-21
Publication date: 2007-09-06
Anticipated expiration: 2026-02-21
Also published as: JP4943713B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bobbin holder allowing embroidering a pattern at a predetermined position with a cord drawn at a uniform tension, when a cord is sewn to a cloth. <P>SOLUTION: The bobbin holder includes a bobbin guide for pivoting a bobbin at an end of a cantilevered arm cantilevered from a base member. In the bobbin holder, a spring material is extended from the base member toward the outer periphery of a bobbin thread to be turnably mounted at the end of the cantilevered arm, the spring material is set to a length allowing the end to resiliently abut on the outer periphery of the bobbin thread, and the spring is set to a force so that the end of the spring material is positioned at a maximum radius of the bobbin thread and makes a strong contact with the maximum radius when the bobbin thread has the maximum radius, and as the bobbin thread is reduced to gradually reduce the radius of the bobbin thread toward a reduced radius position, the position of the end of the spring material is moved toward the reduced diameter position while gradually reducing the pressure contact force. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、布に縫付ける為の紐状の刺繍材等を蓄えるボビンの保持具に関する。 The present invention relates to a bobbin holder for storing a string-like embroidery material or the like for sewing on a cloth.

従来より、基部材から持ち出された持出腕の先部には、ボビンを回動自在に支持する為のボビンガイドを備えさせているボビン保持具は多く知られている。例えば特許文献１に示されるようなボビン保持具は図６（Ａ）に示されるように構成されている。図において、Ａは刺繍縫ミシン（例えば周知のコーネリータイプのミシン）の基枠の一部を示し、ベッド１と一連に連らなっている。２は周知のルーパ、３は駆動用のねじ歯車、４は上下動および回動自在に構成されている中空針棒で、下方には周知のように下糸７を引上げて縫う為の針６を有する。８は回転筒でカサ歯車９を有し、これの回動をニップル保持筒10に伝達できるように保持筒10に固定された連動用キー16を係合させる縦溝15を備える。この保持筒10の下方には糸孔12を備えるニップル13を備え、カサ歯車９を回すときには図示外の連動機構により針６と連動的にニップル13を回動させたり、駆動レバー11の上下によりニップル13を上下動させたりできるようにしてある。17はボビン用支持筒で、受筒17aで支えられ、受け溝18で回動自在に支持され、歯車19を回すと、支持杆20と、ガイドレバー24を伴って回動する。支持杆20に設けた軸20'に対し回動自在に装着した巻糸ボビン21には巻糸（例えば、飾り糸、紐、テープ、ビーズ素材糸等の紐類・以下コードともいう）26が巻付けられており、布30に縫付けられている糸の側からボビンの巻糸26を引くと、巻糸26は、ボビン21を出発し、順次支持杆に付されたガイド22から糸道用孔25に向かって下ってくる。
上記支持杆20と、巻糸ボビン21の側板との間には、巻糸ボビン21が軽快に回動することを防止する為のブレーキ用「ボビン側方板バネ」が介在されている。
上記構成において、周知のコーネリーミシンと同様に針６、ルーパ２、ニップル13、支持筒17を作動させ、布30を矢印30a方向に移動させると、芯糸14に巻糸26が巻付きながら順に嵩高糸27を作り、これが下糸７で布30に縫付けられる（図６（Ｂ）参照）。また周知の刺繍ミシン枠（図示外）をX-Y方向に移動させることによりそれに付される布30もX-Y方向に変位する。また布30に対して芯糸14が先行するように布とタイミングを合せてニップル13と針６の向きも変えられる（一般にコンピューターのプログラムによって同期的に変える）（例えば、特許文献１参照）。
なお、上記の特許文献１に関わる説明において使用した符号（本願願書に添付した図面の図６（Ａ）（Ｂ）に用いられている符号）は、特許文献１において用いられた特有の符号を使用したもので、本願発明に係る［発明を実施するための最良の形態］の欄に用いる符号とは関係がない。
さらに、公知のボビン保持具の内には、例えば特許文献２に示されるものがある。特許文献２に記載されているボビン保持具は、基部材から持出された持出腕（ボビンホルダーともいう）の先部に、ボビンを回動自在に支持する為のボビンガイドを備えている。そして、布の移動に従って、布に縫付けられているコード（刺繍材ともいう）が移動し、その移動によってボビンからコードが引出され、布に対して順々に、縫付けられる。その場合、要求に応じて図６（Ｃ）に示されるようなジグザグ状の縫目（千鳥縫目ともいう）で縫付けられていた。 Conventionally, there are many known bobbin holders provided with a bobbin guide for rotatably supporting a bobbin at the tip of a take-out arm taken out from a base member. For example, a bobbin holder as shown in Patent Document 1 is configured as shown in FIG. In the drawing, A indicates a part of a base frame of an embroidery sewing machine (for example, a well-known Corneli type sewing machine), and is connected to the bed 1 in series. 2 is a known looper, 3 is a screw gear for driving, 4 is a hollow needle bar configured to be movable up and down, and a needle 6 for pulling up and sewing a lower thread 7 as is well known below. Have Reference numeral 8 denotes a rotating cylinder having a bevel gear 9 and a vertical groove 15 for engaging an interlocking key 16 fixed to the holding cylinder 10 so that the rotation of the rotating gear 9 can be transmitted to the nipple holding cylinder 10. A nipple 13 having a thread hole 12 is provided below the holding cylinder 10, and when rotating the bevel gear 9, the nipple 13 is rotated in conjunction with the needle 6 by an interlocking mechanism (not shown), or the drive lever 11 is moved up and down. The nipple 13 can be moved up and down. A bobbin support cylinder 17 is supported by a receiving cylinder 17a and is rotatably supported by a receiving groove 18. When the gear 19 is turned, it rotates with a support rod 20 and a guide lever 24. A winding thread bobbin 21 that is rotatably attached to a shaft 20 'provided on the support rod 20 has a winding thread (for example, a string such as a decorative thread, a string, a tape, a bead material thread, etc., hereinafter also referred to as a cord) 26. When the bobbin winding thread 26 is pulled from the side of the thread that has been wound and sewn on the cloth 30, the bobbin thread 26 starts from the bobbin 21, and sequentially starts from the guide 22 attached to the support rod. Come down toward the hole 25.
Between the support rod 20 and the side plate of the bobbin bobbin 21, a brake “bobbin side plate spring” for preventing the bobbin bobbin 21 from rotating easily is interposed.
In the above configuration, when the needle 6, the looper 2, the nipple 13, and the support cylinder 17 are operated and the cloth 30 is moved in the direction of the arrow 30a in the same manner as the known Corneli sewing machine, the winding thread 26 is wound around the core thread 14. The bulky thread 27 is made in order, and this is sewn to the cloth 30 with the lower thread 7 (see FIG. 6B). Further, when a known embroidery machine frame (not shown) is moved in the XY direction, the cloth 30 attached thereto is also displaced in the XY direction. Further, the direction of the nipple 13 and the needle 6 can be changed in synchronism with the cloth so that the core yarn 14 precedes the cloth 30 (generally, it is changed synchronously by a computer program) (see, for example, Patent Document 1).
In addition, the code | symbol (The code | symbol used for FIG. 6 (A) (B) of drawing attached to this application) used in description regarding said patent document 1 is the peculiar code | symbol used in patent document 1. FIG. It is used and has nothing to do with the reference numerals used in the [Best Mode for Carrying Out the Invention] column according to the present invention.
Further, among known bobbin holders, for example, there is one shown in Patent Document 2. The bobbin holder described in Patent Document 2 includes a bobbin guide for rotatably supporting a bobbin at the tip of a take-out arm (also called a bobbin holder) taken out from a base member. . As the cloth moves, a cord (also referred to as an embroidery material) sewn on the cloth moves, and the cord is pulled out from the bobbin by the movement, and is sewn in sequence on the cloth. In that case, it was sewn with a zigzag stitch (also referred to as a staggered stitch) as shown in FIG.

特開平３−１１８０９３号公報Japanese Patent Laid-Open No. 3-118093 特公昭６２−２３１０１号公報Japanese Examined Patent Publication No. 62-23101

これら従来のボビン保持具を用いた場合の布に対するコードの縫付け状態、例えば周知の千鳥縫いの状態を図６（Ｄ）（Ｅ）に示す。図６（Ｄ）（Ｅ）において、ＳはコードＣを縫付る為の予定線、Ｔは縫糸、Ｔ１は針落ち位置（縫付位置）を示す。
従来のボビン保持具では、布に対してコードを縫付ける場合、ボビンに巻かれたコードの量が多いときは、コードは小さい力で引出される。従って、コードにかかるテンションは小さく、コードが弛んだ状態で縫付けられてしまう。例えば図６（Ｄ）に示されるように、コードＣが弛んだ状態で予定線Ｓより外側にずれて縫付けられてしまう。
さらに、縫付け作業が進行してボビンにおける巻糸の量が減少すると、徐々にコードを引出すのに大きい力を要するようになる。従ってコードにかかるテンションが増加し、コードは引き張った状態で縫付けられてしまう。例えば図６（Ｅ）に示されるようにコードＣは予定線Ｓより内側にずれて縫付けられてしまう。
このように、ボビンの巻量によって、コードにかかるテンションが変化して、コード縫付け予定ラインＳより外れて（位置ずれして）縫付られてしまうという、精度上の問題点があった。
このことは、縫付けの最初の方と最後の方では、コードの縫付け状態がばらついて、刺繍模様全体の風合いが崩れてしまい、刺繍商品の品質を落とす問題点もあった。
なお、従来より周知の糸調子を備えさせてコードのテンションを調節することも考えられるが、コードにあっては、多くの場合糸系が太く、或いは外周面に激しい凹凸があり、糸調子を利用できない悩みがあった。 6 (D) and 6 (E) show a sewing state of the cord to the cloth when these conventional bobbin holders are used, for example, a well-known staggered state. 6D and 6E, S indicates a planned line for sewing the code C, T indicates a sewing thread, and T1 indicates a needle drop position (sewing position).
In the conventional bobbin holder, when the cord is sewn on the cloth, the cord is pulled out with a small force when the amount of the cord wound around the bobbin is large. Accordingly, the tension applied to the cord is small and the cord is sewn in a slack state. For example, as shown in FIG. 6D, the cord C is sewn out of the planned line S in a slack state.
Further, as the sewing operation progresses and the amount of thread wound on the bobbin decreases, a large force is required to gradually pull out the cord. Accordingly, the tension applied to the cord increases, and the cord is sewn in a stretched state. For example, as shown in FIG. 6 (E), the cord C is sewn on the inner side with respect to the planned line S.
As described above, the tension applied to the cord is changed depending on the winding amount of the bobbin, and there is a problem in accuracy that the cord is sewn out of the planned sewing line S (shifted).
This means that there is a problem in that the quality of the embroidery product is deteriorated because the sewed state of the cord varies in the first and last sewing, and the texture of the entire embroidery pattern is lost.
Although it is conceivable to adjust the tension of the cord by providing a well-known thread tension, in the case of the cord, in many cases, the thread system is thick or there are severe irregularities on the outer peripheral surface, and the thread tension is adjusted. There was a trouble that was not available.

本件出願の目的は、布に対してコードを縫付ける場合、ボビンに蓄えられたコードが引出されて布に縫付けられるボビン保持具を提供しようとするものである。
他の目的は、布に対してコードを縫付ける場合、コードが均一のテンションで引出され、予定通りの位置に刺繍模様を縫付けできる可能性を有するボビン保持具を提供しようとするものである。
他の目的及び利点は図面及びそれに関連した以下の説明により容易に明らかになるであろう。 An object of the present application is to provide a bobbin holder in which a cord stored in a bobbin is pulled out and sewn on the fabric when the cord is sewn on the fabric.
Another object is to provide a bobbin holder that has the potential to sew an embroidery pattern in the intended position when the cord is sewn against a fabric, with the cord pulled out with uniform tension. .
Other objects and advantages will be readily apparent from the drawings and the following description associated therewith.

本願発明におけるボビン保持具は、基部材12、31から持ち出された持出腕40の先部40ｂには、ボビン３を回動自在に支持する為のボビンガイド45を備えさせているボビン保持具２において、上記基部材12、31から、上記の持出腕40の先部40ｂに回動自在に装着されるべきボビン３の巻糸26の外周26ａに向けて、バネ材70を延設し、かつ、バネ材70の長さは、先部74を巻糸26の外周26ａに対して弾力的な当接を可能にする長さに設定し、上記バネ材70のバネ力は、上記ボビン３に巻かれる巻糸26の量が最大径Ｄ１のときは上記バネ材の先部74の位置が巻糸26の最大径Ｄ１の位置にあって強い力で接触し、上記ボビン３に巻かれる巻糸26の量が減少して、巻き糸の半径が徐々に小さくなり、小径位置Ｄ２に向かうに伴い、上記バネ材の先部74の位置は、その小径位置Ｄ２に向けて徐々に圧接力を減少させながら移動するように設定したものである。 The bobbin holder according to the present invention has a bobbin guide 45 for rotatably supporting the bobbin 3 at the tip 40b of the take-out arm 40 taken out from the base members 12 and 31. 2, the spring member 70 is extended from the base members 12 and 31 toward the outer periphery 26a of the bobbin 26 to be rotatably attached to the tip portion 40b of the take-out arm 40. In addition, the length of the spring material 70 is set to a length that allows the tip portion 74 to elastically contact the outer periphery 26a of the wound thread 26, and the spring force of the spring material 70 is the bobbin When the amount of the wound thread 26 wound around 3 is the maximum diameter D1, the position of the tip 74 of the spring material is located at the position of the maximum diameter D1 of the wound thread 26 and comes into contact with a strong force and is wound around the bobbin 3. As the amount of the winding thread 26 decreases and the winding thread radius gradually decreases toward the small-diameter position D2, the position of the tip portion 74 of the spring material becomes the small diameter. It is obtained by setting to move while decreasing gradually pressing force toward the location D2.

また好ましくは、バネ材70は線材で形成され、元部は、コイル状に巻回形成されてその自由端は基部材31に止め付けられ、先部は上記ボビン３の軸芯に平行になる状態で巻き糸の表面に接するように形成してあるものであればよい。 Preferably, the spring material 70 is formed of a wire material, the base portion is wound in a coil shape, the free end is fixed to the base member 31, and the tip portion is parallel to the axis of the bobbin 3. What is necessary is just to be formed so that the surface of a wound thread may be touched in the state.

また好ましくは、バネ材70は線材で形成され、元部は、コイル状に巻回形成されてその自由端は、基部材31に対して回動調節自在に備えさせてある調節リング７８に止め付けられ、先部74は上記ボビン３の軸芯に平行になる状態で巻き糸の表面に接するように形成して、上記調節リング７８を回動することにより上記先部74の巻き糸表面に接する圧力を可変可能にしてあるものであればよい。 Preferably, the spring member 70 is formed of a wire, the base portion is formed in a coil shape, and a free end thereof is fixed to an adjustment ring 78 provided so as to be rotatable and adjustable with respect to the base member 31. The tip portion 74 is formed so as to be in contact with the surface of the wound yarn in a state parallel to the axis of the bobbin 3, and the adjustment ring 78 is rotated to turn on the surface of the wound yarn of the tip portion 74. Any pressure may be used as long as the contact pressure can be varied.

また好ましくは、基部材31から持ち出された持出腕40の先部40ｂには、ボビン３を回動自在に支持する為のボビンガイド45を備えさせているボビン保持具２において、上記持出腕40の元部は上記基部材31の一端に装着し、基部材31の他端には上記持出腕40に対応させる補助アーム50を回動自在に装着し、持出腕40の先部40ｂにて一端が支持されている上記ボビンガイド45の他端に対しては、上記補助アーム50の先部を着脱自在に装着して、上記ボビンガイド45の両端を持出腕40の先部40ｂと、補助アーム50の先部とで支持できるようにしてあり、ボビンガイド45に対してボビン３を着脱する場合には、基部材31を軸芯にして補助アーム50の先部を回動させることによりボビンガイド45の軸心方向の周辺から退避させるようにしてあり、一方、上記基部材31から、上記の持出腕40の先部40ｂに回動自在に装着されるべきボビン３の巻糸26の外周26ａに向けて、バネ材70を延設し、かつ、バネ材70の長さは、先部74を巻糸26の外周26ａに対して弾力的な当接を可能にする長さに設定し、上記バネ材70のバネ力は、上記ボビン３に巻かれる巻糸26の量が最大径Ｄ１のときは上記バネ材の先部74の位置が巻糸26の最大径Ｄ１の位置にあって強い力で接触し、上記ボビン３に巻かれる巻糸26の量が減少して、巻き糸の半径が徐々に小さくなり、小径位置Ｄ２に向かうに伴い、上記バネ材の先部74の位置は、その小径位置Ｄ２に向けて徐々に圧接力を減少させながら移動するように設定してあり、さらに上記補助アーム50には、基部材31を軸芯にして補助アーム50の先部を回動させる場合に、上記バネ材70を巻糸26の外周26ａから離す方向に伴って回動できるように上記バネ材70に対する係合を可能にバネ連動ピン６２を備えさせたものであればよい。 Also preferably, in the bobbin holding tool 2 provided with a bobbin guide 45 for rotatably supporting the bobbin 3 at the tip 40b of the take-out arm 40 taken out from the base member 31, the take-out The base of the arm 40 is attached to one end of the base member 31, and the other end of the base member 31 is rotatably attached with an auxiliary arm 50 corresponding to the take-out arm 40. The tip of the auxiliary arm 50 is detachably attached to the other end of the bobbin guide 45 whose one end is supported by 40b, and both ends of the bobbin guide 45 are attached to the tip of the take-out arm 40. 40b and the tip of the auxiliary arm 50 can be supported, and when the bobbin 3 is attached to and detached from the bobbin guide 45, the tip of the auxiliary arm 50 is rotated about the base member 31 as an axis. Is retracted from the periphery of the bobbin guide 45 in the axial direction. The spring material 70 is extended toward the outer circumference 26a of the bobbin thread 26 of the bobbin 3 to be rotatably attached to the tip portion 40b of the take-out arm 40, and the length of the spring material 70 is The tip portion 74 is set to a length that enables elastic contact with the outer periphery 26a of the wound yarn 26, and the spring force of the spring material 70 is determined by the amount of the wound yarn 26 wound around the bobbin 3. At the maximum diameter D1, the position of the tip 74 of the spring material is at the position of the maximum diameter D1 of the winding thread 26 and contacts with a strong force, and the amount of the winding thread 26 wound around the bobbin 3 decreases. As the radius of the winding thread gradually decreases toward the small diameter position D2, the position of the tip 74 of the spring material is set so as to move while gradually decreasing the pressure contact force toward the small diameter position D2. Furthermore, the auxiliary arm 50 is provided with the spring material 70 from the outer periphery 26a of the wound thread 26 when the tip of the auxiliary arm 50 is rotated with the base member 31 as the axis. What is necessary is just to provide the spring interlocking pin 62 so that the spring member 70 can be engaged with the spring member 70 so that the spring member 70 can be rotated in the direction away from it.

以上のように本願発明は、布に対してコードを縫付ける場合、ボビンにおけるコードの巻量に関係なくコードが均一のテンションで引き出されるので、コードが予定位置に縫付られるという精度上の特長がある。
さらにこのことは、縫付開始から縫付完了まで、コードの縫付け状態がばらつかないので、刺繍模様全体の風合いが整って予定通りの美しい刺繍模様の商品を提供することができる品質上の効果がある。 As described above, according to the present invention, when the cord is sewn on the cloth, the cord is pulled out with a uniform tension regardless of the amount of the cord wound on the bobbin. There is.
Furthermore, since the sewing state of the cord does not vary from the start of sewing to the completion of sewing, the texture of the entire embroidery pattern is in order and a product with a beautiful embroidery pattern as planned can be provided. effective.

以下本願発明の実施の形態を図面を用いて説明する。図１及び乃至図５において、１は一般に広く知られているミシンの機構部、２はボビン３を保持する為のボビン保持具を示す。
次に機構部１において、１１は通常知られているミシンのヘッドに連なる部材で、例えば，本縫いハンドルミシンの本体に連なる基軸１１を示す。１２は、基軸１１の内側において回動自在に備えさせてある回転筒を示す。この回転筒１２の内側には周知の針棒１４が上下動自在に備えさせてあり、周知の駆動機構を介して図示外の主軸に連繋させてある。15は針棒１４に装着してある本縫い用の針棒を、また１６は周知のように主軸に連繋させてあり、かつ上下動自在にしてある布押えを示す。
なお、２２はミシンにおける針板、２３は針板２２の上に載せられている布を示し、布２３は周知のように刺繍枠に装着されており、針板２２の上においてコンピューター制御に基づきＸ、Ｙ方向の二次元方向に任意自在に動くようになっている。２４は、針１５によって布の表面に縫い付けられる縫糸を示し、刺繍糸材（例えば、飾り糸、紐、テープ、ビーズ素材糸等）２５を布２３の表面に止着する為のものである。 Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 5, reference numeral 1 denotes a generally known mechanical part of a sewing machine, and 2 denotes a bobbin holding tool for holding the bobbin 3.
Next, in the mechanism portion 1, reference numeral 11 denotes a member that is connected to a head of a generally known sewing machine, for example, a base shaft 11 that is connected to the main body of the main sewing handle sewing machine. Reference numeral 12 denotes a rotating cylinder that is rotatably provided inside the base shaft 11. A known needle bar 14 is provided inside the rotary cylinder 12 so as to be movable up and down, and is linked to a main shaft (not shown) via a known drive mechanism. Reference numeral 15 denotes a main sewing needle bar attached to the needle bar 14, and reference numeral 16 denotes a presser foot which is connected to the main shaft and is movable up and down as is well known.
Reference numeral 22 denotes a needle plate in the sewing machine, 23 denotes a cloth placed on the needle plate 22, and the cloth 23 is attached to an embroidery frame as is well known, and is based on computer control on the needle plate 22. It can move freely in the two-dimensional direction of the X and Y directions. Reference numeral 24 denotes a sewing thread that is sewn to the surface of the cloth by the needle 15, and is used to fasten an embroidery thread material (for example, decorative thread, string, tape, bead material thread, etc.) 25 to the surface of the cloth 23. .

次に１７は糸ガイド機構８５を駆動するためのガイド用駆動機構を示し、１８は、回転筒１２の外周面に対して、上下方向には任意に上下動自在で、回動方向には一体に回動するように備えさせてある回転リングを示し、周囲には、上下方向に向けて揺動自在にしてある爪１９に係合させる為の係合溝18aが周設されている。爪１９は、図示外の主軸に連繋させてあり、糸ガイド部８８を針棒１４の動きと同期させて揺動させる為に揺動自在にしてあり、これの揺動に伴い、回転リング１８は上下動し、また回転リング１８に連結されている伝達部材２０、２０も上下動し、伝達部材２０の先端に備えさせてある係合子２１を上下動させる。係合子２１の上下動により、係合部８７は上下揺動し、糸ガイド機構８５は所定の動作をする。 Next, 17 is a guide drive mechanism for driving the yarn guide mechanism 85, and 18 is arbitrarily movable up and down in the vertical direction with respect to the outer peripheral surface of the rotary cylinder 12, and is integrated in the rotation direction. A rotating ring provided so as to rotate is shown, and an engagement groove 18a for engaging with a claw 19 which is swingable in the vertical direction is provided around the periphery. The claw 19 is connected to a main shaft (not shown), and is swingable so that the thread guide portion 88 swings in synchronization with the movement of the needle bar 14. Moves up and down, and the transmission members 20 and 20 connected to the rotary ring 18 also move up and down to move the engagement element 21 provided at the tip of the transmission member 20 up and down. By the vertical movement of the engagement element 21, the engagement portion 87 swings up and down, and the yarn guide mechanism 85 performs a predetermined operation.

次にボビン保持具２は、保持手段３０を備える。保持手段３０としては基部材31から持ち出された持出腕40の先部40ｂに、ボビン３を回動自在に支持する為のボビンガイド45を備え、基部材31によってボビンを回動自在に支持できるようにしたものである。
具体的には、上記持出腕４０の元部40ａは上記基部材31の一端に固着的に装着し、基部材31の他端には上記持出腕40に対応させる補助アーム50を回動自在に装着してある。持出腕40の先部40ｂにて一端が固着的に支持されている上記ボビンガイド45の他端に対しては、上記補助アーム５０の先部を着脱自在に装着して、上記ボビンガイド45の両端を、常時は持出腕40の先部40ｂと、補助アーム５０の先部50ａとで支持できるようにしてある。
ボビンガイド45に対してボビン３を着脱する場合には、基部材31を軸芯にして補助アーム（開閉アーム）５０の先部50ａを図示のように回動させることによりボビンガイド45の軸心方向の周辺から退避させ、ボビン３の着脱を可能にする空間を形成し得るようにしてある（図４参照）。 Next, the bobbin holder 2 includes a holding unit 30. The holding means 30 includes a bobbin guide 45 for rotatably supporting the bobbin 3 on the tip 40b of the take-out arm 40 taken out from the base member 31, and the bobbin is rotatably supported by the base member 31. It is something that can be done.
Specifically, the base portion 40a of the take-out arm 40 is fixedly attached to one end of the base member 31, and the auxiliary arm 50 corresponding to the take-out arm 40 is rotated at the other end of the base member 31. It is installed freely. The tip of the auxiliary arm 50 is detachably attached to the other end of the bobbin guide 45 whose one end is fixedly supported by the tip 40b of the take-out arm 40, and the bobbin guide 45 is attached. Both ends of the auxiliary arm 50 can be supported by the tip portion 40b of the take-out arm 40 and the tip portion 50a of the auxiliary arm 50 at all times.
When the bobbin 3 is attached to or detached from the bobbin guide 45, the tip 50a of the auxiliary arm (opening / closing arm) 50 is rotated as shown in FIG. A space allowing the bobbin 3 to be attached and detached can be formed by retracting from the periphery of the direction (see FIG. 4).

上記構成の保持手段３０を具体例を示す図面についてさらに詳細に説明する。３１は基部材で、棒状の本体３２の両側には持出腕40の元部40a、補助アーム５０の元部50ｂを夫々装着する為の雌ねじ孔を有する装着面31a、31aを備える。３３と３４は、夫々後述するバネ材70の巻部（コイル部）72を配置する為の巻バネ保持部を示し、基部材３１の両端を小径にして形成している。
３５、３６は夫々巻ばね保持部33、34に装着された巻部72の軸芯方向への広がりを規制する為の規制面を示す。
基部材３１における３８は、ミシンの回転筒12に装着するのに用いる連結部材９３を固着する為の連結部を示し、連結面38ａを連結部材９３における装着面93ａに対応形状に形成してある。さらに、連結面38ａと連結部材９３との間に糸ガイド機構85を介在させて固着した場合に、糸ガイド機構85が揺動できる巾寸法に形成してある。連結部３８と連結部材９３との固着は、夫々の固着用の孔を介してボルト９４、９４で着脱可能に一体的に固着してある。 The holding means 30 having the above configuration will be described in more detail with reference to the drawings showing specific examples. Reference numeral 31 denotes a base member provided on both sides of the rod-like main body 32 with mounting surfaces 31a and 31a having female screw holes for mounting the base portion 40a of the take-out arm 40 and the base portion 50b of the auxiliary arm 50, respectively. Reference numerals 33 and 34 denote winding spring holding portions for disposing a winding portion (coil portion) 72 of a spring material 70 which will be described later, respectively, and both ends of the base member 31 are formed with a small diameter.
Reference numerals 35 and 36 denote restricting surfaces for restricting the spread of the winding portion 72 attached to the winding spring holding portions 33 and 34 in the axial direction.
Reference numeral 38 in the base member 31 indicates a connecting portion for fixing the connecting member 93 used for mounting on the rotary cylinder 12 of the sewing machine, and the connecting surface 38a is formed in a shape corresponding to the mounting surface 93a in the connecting member 93. . Further, when the thread guide mechanism 85 is interposed between the coupling surface 38a and the coupling member 93 and fixed, the width dimension is such that the thread guide mechanism 85 can swing. The connecting portion 38 and the connecting member 93 are fixedly and integrally attached to each other by bolts 94 and 94 through respective fixing holes.

次に、40はボビンガイド45を支持する為の持出腕を示し、持出の長さはボビン３を、ガイド45に装着した状態でボビン３が回動できる長さにしてある。41は元部40ａを基部材31に固着する為の固着手段（例えばボルト）48を挿通させる装着孔、４２は先部40ｂをボビンガイド45の一端45ａに固着する為の固着手段（例えばボルト）48を挿通させる装着孔を示す。 Next, reference numeral 40 denotes a take-out arm for supporting the bobbin guide 45. The take-out length is such that the bobbin 3 can be rotated while the bobbin 3 is mounted on the guide 45. 41 is a mounting hole for inserting a fixing means (for example, bolt) 48 for fixing the base portion 40a to the base member 31, and 42 is a fixing means (for example, bolt) for fixing the front portion 40b to one end 45a of the bobbin guide 45. A mounting hole through which 48 is inserted is shown.

次に、５０はボビン３の抜脱を防止できるようにガイド45の一端側に配置した補助アームを示し、元部50bの装着孔51に固着手段（例えばボルト）48を挿通して、元部を基部材31に対して回動自在に装着してある。先部50aには、ボビンガイド45の他端45ｂを着脱自在に装着する為にＵ字状に形成してある受止部５２を備える。
上記ボビンガイド４５は、ボビン３の巻芯95の中空部95ａを挿通して支持できるような径に構成してある。46は補助アーム５０における受止部５２と係合する為の掛合部を示す。 Next, reference numeral 50 denotes an auxiliary arm arranged on one end side of the guide 45 so as to prevent the bobbin 3 from being pulled out, and a fixing means (for example, a bolt) 48 is inserted into the mounting hole 51 of the base portion 50b. Is attached to the base member 31 so as to be rotatable. The front portion 50a includes a receiving portion 52 formed in a U shape so that the other end 45b of the bobbin guide 45 is detachably mounted.
The bobbin guide 45 is configured to have such a diameter that the hollow portion 95a of the core 95 of the bobbin 3 can be inserted and supported. Reference numeral 46 denotes an engaging portion for engaging with the receiving portion 52 in the auxiliary arm 50.

なお、上述の保持手段３０においては、持出腕40を基部材31の片側から持出してボビンガイド45を支持する例を説明したが、ボビン支持の態様は任意でよく、周知のように基部材31の両側に固着した２個の持出腕を持ち、ボビンガイド45を両側から支持するように構成しても良い。その場合、図示の補助アーム50を持出腕として利用しても良い。
さらに、ボビンガイド45は、図示のように一端45ａを持出腕40で固定的に支持するように構成したが、これの元部が起倒自在に装着してあっても良い。また長さの極めて短い凸部を夫々２本の持出腕の先に備えさせ、ボビン３を両側から着脱自在に支持するようにしても良い。
次に、保持手段３０において、持出腕の元部40ａは、基部材31に代えてミシンにおける周知の固定フレーム（或いはミシンヘッド部材１２）に対して直接装着するようにしたものであっても良い。 In the holding means 30 described above, an example in which the take-out arm 40 is taken out from one side of the base member 31 to support the bobbin guide 45 has been described. However, the mode of bobbin support may be arbitrary, and as is well known, the base member It may be configured to have two take-out arms fixed to both sides of 31 and to support the bobbin guide 45 from both sides. In that case, the illustrated auxiliary arm 50 may be used as a take-out arm.
Further, the bobbin guide 45 is configured so that the one end 45a is fixedly supported by the take-out arm 40 as shown in the figure, but the base part of the bobbin guide 45 may be mounted so as to be tiltable. Alternatively, a very short convex portion may be provided at the tip of each of the two take-out arms, and the bobbin 3 may be detachably supported from both sides.
Next, in the holding means 30, the base 40a of the take-out arm may be directly attached to a well-known fixed frame (or sewing head member 12) in the sewing machine instead of the base member 31. good.

次に、55はボビン保持具２における開閉手段で、補助アーム５０の先部50aをガイドの他端45ｂに固着させたり、ガイド４５の他端45ｂ側からの拘束を外したりする為のものである。
多くの場合、ボビン３をガイド４５に対して着脱する場合、図４に表れているように補助アーム５０の先部50aを矢印６８方向に回動させ、ボビン３の抜き差し方向の空間を開放或いは閉鎖する為のものであり、抜出防止部材56と押圧部材59を備える。
抜出防止部材56は、ボビンガイド45の掛合部46が補助アーム５０における受止部５２から脱出するのを防止する為のものである。抜出防止部材56は、図３の矢印65方向（ガイド45の軸心方向：図４（Ｂ）の矢印67方向）には弾力的に進退可能に、かつ補助アーム５０の板面に沿う方向への動作は規制されるように、弾性材、例えば金属薄板材で構成してある。５７は抜出防止孔を示し、装着状態においてはボビンガイド45の他端45ｂと嵌合するように形成してある。５８は、抜出防止部材56を指で摘んで図４（Ｂ）に表れているように操作する為の操作爪を示す。59は抜出防止部材56の元部を補助アーム５０に対して圧着する為の押圧部材を示し、ばね材、例えば板ばねで構成してある。
抜出防止部材56と押圧部材59は、夫々の元部における固着孔56ａ、56ａ、59ａ、59ａを介してねじ61、61で補助アーム５０の固着孔53、53に一体的に固着してある。 Next, 55 is an opening / closing means in the bobbin holder 2 for fixing the tip portion 50a of the auxiliary arm 50 to the other end 45b of the guide or removing the restraint from the other end 45b side of the guide 45. is there.
In many cases, when the bobbin 3 is attached to and detached from the guide 45, the tip 50a of the auxiliary arm 50 is rotated in the direction of arrow 68 as shown in FIG. It is for closing and includes an extraction preventing member 56 and a pressing member 59.
The extraction preventing member 56 is for preventing the engaging portion 46 of the bobbin guide 45 from coming out of the receiving portion 52 in the auxiliary arm 50. The pull-out preventing member 56 is elastically movable in the direction of the arrow 65 in FIG. 3 (the axial direction of the guide 45: the direction of the arrow 67 in FIG. 4B) and is along the plate surface of the auxiliary arm 50. It is made of an elastic material, for example, a metal thin plate material, so that the movement to is restricted. Reference numeral 57 denotes an extraction prevention hole, which is formed so as to be fitted to the other end 45b of the bobbin guide 45 in the mounted state. Reference numeral 58 denotes an operation nail for picking up the extraction preventing member 56 with a finger and operating it as shown in FIG. Reference numeral 59 denotes a pressing member for pressing the base portion of the extraction preventing member 56 against the auxiliary arm 50, and is constituted by a spring material, for example, a leaf spring.
The extraction preventing member 56 and the pressing member 59 are integrally fixed to the fixing holes 53, 53 of the auxiliary arm 50 with screws 61, 61 through fixing holes 56a, 56a, 59a, 59a in the respective original parts. .

次に、70はボビン保持具２におけるバネ材としての線材を示す。バネ材７０は上記基部材31から、上記の持出腕40の先部40ｂに回動自在に装着されるべきボビン３の巻糸26の外周26ａに向けて、図５（A）に表れているように延設されている。上記バネ材７０としては、巻糸２６に対する当接部が平坦で、広い当接面が形成できる弾力性のあるばね板であっても良い。この場合元部は、基部材31の周面における任意の箇所に起倒自在に固着すればよい。
バネ材70の長さは、先部74を巻糸２６の外周26ａに対して弾力的な当接を可能にする長さに設定してある。
上記バネ材70が線材で形成されている場合、両側の夫々の元部７２、７２は、コイル状に巻回して形成されている。その内の一方の自由端７１は開放されている。他方の自由端71ａは後述の如く調節リング７８に止着されている。これらの両側の巻部７２、７２は、夫々の持出部７３、７３を介して先部７４で連結されている。先部７４は巻糸２６全域に対して当接するような長さで、かつ、上記ボビン３の軸芯に平行になる状態で巻き糸２５の表面に接するように直角に曲げ形成してある。 Next, reference numeral 70 denotes a wire as a spring material in the bobbin holder 2. The spring member 70 appears from the base member 31 toward the outer periphery 26a of the bobbin 3 to be rotatably attached to the tip portion 40b of the take-out arm 40 as shown in FIG. It is extended to be. The spring material 70 may be an elastic spring plate having a flat contact portion with the wound yarn 26 and capable of forming a wide contact surface. In this case, the base portion may be fixed to an arbitrary position on the peripheral surface of the base member 31 so as to be tiltable.
The length of the spring material 70 is set to a length that allows the tip portion 74 to elastically contact the outer periphery 26a of the wound thread 26.
When the spring material 70 is formed of a wire material, the original portions 72 and 72 on both sides are formed by being wound in a coil shape. One of the free ends 71 is open. The other free end 71a is fixed to an adjustment ring 78 as will be described later. These winding portions 72 and 72 on both sides are connected to each other by a leading portion 74 via respective take-out portions 73 and 73. The tip portion 74 has a length that makes contact with the entire area of the wound yarn 26 and is bent at a right angle so as to contact the surface of the wound yarn 25 in a state of being parallel to the axis of the bobbin 3.

上記バネ材70のバネ力は、上記ボビン３に巻かれる巻糸26の量が図５（Ａ）に示されるような最大径Ｄ１のときは上記バネ材の先部74の位置が巻糸26の最大径Ｄ１の位置にあって強い力で接触するようにしてある。上記ボビン３に巻かれる巻糸26の量が減少して、巻き糸の半径が徐々に小さくなり、図５（Ａ）に示されるような小径位置Ｄ２に向かうに伴い、上記バネ材の先部74の位置は、その小径位置Ｄ２に向けて徐々に圧接力を減少させながら移動するように巻きの向きを設定してある。 The spring force of the spring material 70 is such that when the amount of the winding thread 26 wound around the bobbin 3 is the maximum diameter D1 as shown in FIG. It is in the position of the maximum diameter D1 and contacts with a strong force. As the amount of the winding thread 26 wound around the bobbin 3 decreases, the radius of the winding thread gradually decreases, and as it moves toward the small diameter position D2 as shown in FIG. At the position 74, the winding direction is set so as to move toward the small diameter position D2 while gradually decreasing the pressure contact force.

次に、７６は刺繍糸材25が引出される際にバネ材７０の当接部７４にコード２５における凹凸の凸部分が引っ掛からないようにする為に必要に応じて当接部７４の線材の外周に対して回動自在に装着する滑り部材（配線用スパイラル）を示し、例えば長さは、持出部７３、７３相互間に入る長さで、材質は透明のビニール材で中空状に形成してある。滑り部材76の材質、径のサイズは刺繍糸材25の凹凸の種類、激しさによって刺繍糸材25の繰り出しを妨げないように適当に決めれば良い。
なお、中空筒状の滑り部材の外周には線材７４を挿入する為に螺旋状に切れ目を入れておけばよい。
次に、７７はボビン３の回動を摩擦力を利用して調節する為のフェルト製の摩擦部材を示し、必要に応じて備えさせるものであり、ボビンガイド45の一端45ａに挿通し、ボビン３の枠板９６と、持出腕４０の内面とに当接するように配置してある。 Next, reference numeral 76 denotes a wire rod of the contact portion 74 as necessary to prevent the uneven portion of the cord 25 from being caught on the contact portion 74 of the spring material 70 when the embroidery thread material 25 is pulled out. 1 shows a sliding member (wiring spiral) that is rotatably mounted on the outer periphery, for example, the length is between the take-out portions 73 and 73, and the material is formed of a transparent vinyl material in a hollow shape. It is. The material and diameter size of the sliding member 76 may be appropriately determined so as not to prevent the feeding of the embroidery thread material 25 depending on the type of unevenness of the embroidery thread material 25 and the severity.
In addition, what is necessary is just to cut | disconnect spirally in order to insert the wire 74 in the outer periphery of a hollow cylindrical sliding member.
Next, reference numeral 77 denotes a felt friction member for adjusting the rotation of the bobbin 3 by using a frictional force. The felt friction member 77 is provided as necessary. The bobbin guide 45 is inserted into one end 45a of the bobbin guide 45. 3 frame plate 96 and the inner surface of the take-out arm 40.

次に、７８はバネ材70のバネ力を調節する為の調節機構で、調節リング７８は、上記軸状の巻ばね保持部33に対して貫通孔７９を貫通させて回動自在に装着されており、これのバネ係止部８１には、上記コイル状に巻回形成されているバネ材70の巻部７２の自由端71aが止着されている。８０は調節リング78の外周に備えてあるローレット（ギザギザ）で、広く知られているように調節リング78を回動操作するとき操作しやすく形成してある。８２は周知の波ワッシャー（板バネ材）を示し、調節リング７８を指先で強く回した時には回動を許すが、バネ力では自然には回動しないように設けられている。
このバネ力調節機構の存在により、上記調節リング７８を回動（矢印８３或いは８４方向へ回動）させる場合には、バネ材70の巻部７２の巻き締め力が増減し、上記巻き糸表面26aに接するバネ材70の先部74の圧力が可変可能になり、繰り出される糸のテンションが強弱調節される。 Next, reference numeral 78 denotes an adjustment mechanism for adjusting the spring force of the spring material 70. The adjustment ring 78 is rotatably mounted through the through hole 79 with respect to the shaft-shaped winding spring holding portion 33. The free end 71a of the winding part 72 of the spring material 70 wound around the coil is fixed to the spring locking part 81. Reference numeral 80 denotes a knurling provided on the outer periphery of the adjusting ring 78, which is formed so as to be easily operated when the adjusting ring 78 is rotated as is widely known. Reference numeral 82 denotes a known wave washer (plate spring material), which is allowed to rotate when the adjustment ring 78 is strongly rotated by a fingertip, but is not naturally rotated by a spring force.
When the adjusting ring 78 is rotated (rotated in the direction of the arrow 83 or 84) due to the presence of the spring force adjusting mechanism, the winding force of the winding portion 72 of the spring material 70 is increased or decreased, and the surface of the wound thread is increased. The pressure of the tip 74 of the spring material 70 in contact with 26a can be varied, and the tension of the fed yarn is adjusted.

次に、62は補助アーム５０から突出させる状態で一体的に備えさせてあるバネ連動ピンを示す。このバネ連動ピン６２は、上記基部材31を軸芯にして補助アーム５０の先部50aを図４（A）に表れているように回動させる場合に、上記バネ材70の当接部７４を伴って巻糸26の外周26ａから離す方向に一緒になって図４（A）の位置に向けて回動（矢印68方向へ回動）できるようにするものである。上記バネ連動ピン62の突出寸法は、図４（Ｂ）に表れているようにバネ材70に対する係合を可能に長く延出してある。
なお基部材３１の両側に配設してある２つの巻部７２から延出される持出部７３の先端相互は当接部７４で１体に連結しておくとよい。その場合一方の持出部７３をバネ連動ピン６２で押し下げれば、当接部７４の全体が下降する。 Next, reference numeral 62 denotes a spring interlocking pin that is integrally provided so as to protrude from the auxiliary arm 50. The spring interlocking pin 62 is a contact part 74 of the spring material 70 when the tip part 50a of the auxiliary arm 50 is rotated as shown in FIG. With this, together with the direction away from the outer periphery 26a of the wound thread 26, it can be rotated toward the position of FIG. 4A (rotated in the direction of arrow 68). The protrusion dimension of the spring interlocking pin 62 extends long enough to engage with the spring material 70 as shown in FIG.
In addition, it is good to connect the front-end | tips of the taking-out part 73 extended from the two winding parts 72 arrange | positioned at the both sides of the base member 31 with the contact part 74 at one body. In that case, if one take-out portion 73 is pushed down by the spring interlocking pin 62, the entire contact portion 74 is lowered.

次に、従来より知られた構成を備える糸ガイド機構８５について説明する。本体部材８６は、Ｌ字型に構成されており、一端には、ミシン機構部１における糸ガイド用駆動機構１７の係合子２１と係合させる為の二股状の係合部８７を備えており、他端には図２から明らかなようにボビン３から引き出される糸２５を案内するためのガイド部（糸案内用の透孔）88が備えられている。86aは、本体部材８６を基部材31に対して揺動自在に枢着する為の枢止部を示す。
このような構成にあっては、糸ガイド用駆動機構１７の係合子２１を揺動させることにより二股状の係合部８７と共に糸案内用の透孔88も揺動し、ボビン３から引き出される糸２５を布面に対して左右に振り分けて案内する。
なお本体部材８６（86bと86c）の一部においては、別部材を連結して構成した部分（部材86bと部材86c）があり、これらの間において、さらなる別の連結部材86dを介在させ、針板２２に対する糸案内用の透孔88の高さと揺動位置を変更できるようにしてある。88aは必要に応じて透孔88に対して進退自在に設けるコード通し用のニップルである。
８９はガイド部88の高さを調節する為の長孔、９０は調節ネジを示す。
９１は、糸ガイド機構８５を使用しない場合に、ガイド部88を邪魔にならない高い位置に退避させる為の調節ねじを示す。 Next, the yarn guide mechanism 85 having a conventionally known configuration will be described. The main body member 86 is configured in an L shape, and has a bifurcated engaging portion 87 for engaging with the engaging member 21 of the yarn guide driving mechanism 17 in the sewing machine mechanism portion 1 at one end. As is clear from FIG. 2, a guide portion (thread guide through hole) 88 for guiding the thread 25 pulled out from the bobbin 3 is provided at the other end. Reference numeral 86 a denotes a pivot stop for pivotally mounting the main body member 86 to the base member 31.
In such a configuration, by swinging the engagement element 21 of the thread guide drive mechanism 17, the thread guide through-hole 88 is also swung together with the bifurcated engagement portion 87 and pulled out from the bobbin 3. The thread 25 is guided to the left and right with respect to the cloth surface.
A part of the main body member 86 (86b and 86c) includes a portion (member 86b and member 86c) configured by connecting different members, and another additional connecting member 86d is interposed between them to connect the needle. The height and swing position of the thread guide through-hole 88 with respect to the plate 22 can be changed. Reference numeral 88a denotes a cord threading nipple that can be moved forward and backward as required.
89 is a long hole for adjusting the height of the guide portion 88, and 90 is an adjusting screw.
Reference numeral 91 denotes an adjustment screw for retracting the guide portion 88 to a high position that does not get in the way when the yarn guide mechanism 85 is not used.

次に、通常一般に使われているボビン３について説明する。９５は中心部に位置させる中空巻芯でこれの周囲に図５のように刺繍糸材25を巻き付けて蓄える。95ａはガイド４５を挿通する為の中空部、９６は中空巻芯９５の両側に配設する枠板（フランジ）、９７は２つの枠板間に存在する糸巻空間、９８は糸量観察（覗き見）孔を示す。これらの構成材料はプラスチックなど任意の硬質材で形成される。 Next, the bobbin 3 that is generally used will be described. Reference numeral 95 denotes a hollow core positioned in the center, and the embroidery thread material 25 is wound around and stored around the hollow core as shown in FIG. 95a is a hollow portion through which the guide 45 is inserted, 96 is a frame plate (flange) disposed on both sides of the hollow winding core 95, 97 is a bobbin space existing between the two frame plates, and 98 is a yarn amount observation (peek) Look) Show holes. These constituent materials are formed of an arbitrary hard material such as plastic.

上記構成のボビン保持具２を用いて図２（B）に示される状態の千鳥縫いの縫製を行う場合について説明する。
ボビン保持具２として図１に示される状態のものを、図２に示されるようにミシン機構部１における回転筒１２に対して、連結部材９３を介して装着し一体化させる。
また図１に示される右側のボビンガイド４５には、左側の図のようなボビン３を対称的に装着する。装着方法はボビンガイド４５の手前側を図４（A）のように、補助アーム５０を下側に回動させることにより開放させる。その操作は図４（B）において開閉手段５５の操作爪５８を、押圧部材５９の弾力に抗して指先で矢印６７方向に移動させ、補助アーム５０の受止部５２の開口部を開放させる。この状態で補助アーム５０の先部50aを図４（A）のように下降させれば、ボビンガイド４５の軸線方向にボビン３を操作する為の大きな空間が形成される。
なお、補助アーム５０に対して予めバネ連動ピン６２が設けられている場合は、受止部５２の回動に際してバネ連動ピン６２が回動するので、この先端がバネ材（ネジリバネ）７０の持出部７３に当たり、持出部７３、当接部７４をも図４（A）の下側６８に向けて補助アーム５０と一緒に移動し、手間少なく持出部７３を退避及び復元させることができる。
この状態でコード２５が最大値巻かれているボビン３をガイド４５の一端から軸線方向に移動させてガイド４５の軸の周囲に回転自在に装着し、補助アーム５０の先部50aを図１に示される位置に戻し、図２（A）の状態から縫製作業に入る。この場合、持出部７３、当接部７４もフリーの状態となり、補助アーム５０と一緒に戻り、当接部７４はボビン３の最大径Ｄ１に巻かれているコード２６の周面26ａに対して比較的強い力で弾力的に当接する。 A case where staggered stitching in the state shown in FIG. 2B is performed using the bobbin holder 2 having the above-described configuration will be described.
The bobbin holder 2 in the state shown in FIG. 1 is attached to and integrated with the rotating cylinder 12 in the sewing machine mechanism 1 via the connecting member 93 as shown in FIG.
Further, the bobbin 3 as shown in the left figure is mounted symmetrically on the right bobbin guide 45 shown in FIG. As for the mounting method, the front side of the bobbin guide 45 is opened by rotating the auxiliary arm 50 downward as shown in FIG. 4B, the operation claw 58 of the opening / closing means 55 is moved in the direction of the arrow 67 with the fingertip against the elasticity of the pressing member 59, and the opening of the receiving portion 52 of the auxiliary arm 50 is opened. . If the tip 50a of the auxiliary arm 50 is lowered as shown in FIG. 4A in this state, a large space for operating the bobbin 3 in the axial direction of the bobbin guide 45 is formed.
If the spring interlocking pin 62 is provided in advance for the auxiliary arm 50, the spring interlocking pin 62 rotates when the receiving portion 52 rotates, so that the tip thereof is held by the spring material (torsion spring) 70. The take-out portion 73 and the abutment portion 74 are also moved together with the auxiliary arm 50 toward the lower side 68 in FIG. 4A, and the take-out portion 73 can be retracted and restored with little effort. it can.
In this state, the bobbin 3 around which the cord 25 is wound at the maximum value is moved axially from one end of the guide 45 and is rotatably mounted around the shaft of the guide 45, and the tip 50a of the auxiliary arm 50 is shown in FIG. Returning to the position shown, the sewing operation starts from the state shown in FIG. In this case, the take-out portion 73 and the contact portion 74 are also in a free state and returned together with the auxiliary arm 50, and the contact portion 74 is against the peripheral surface 26a of the cord 26 wound around the maximum diameter D1 of the bobbin 3. It is elastically abutted with a relatively strong force.

縫製作業は周知のように針板の上において、刺繍枠に張られている布２３を刺繍枠駆動装置（図示外）により予め定められたプログラムに従ってX-Yの二次元方向に作動させる。
一方、この動きに同期させて、ミシン機構部１を動作させる。ミシン機構部１はプログラムに基づき、所定のリズムでもって、回転筒１２を回動させ、溝18ａと係合する爪１９を上下動させて前記のガイド部８８の首振り動作を行い、縫い針１５と布押え１６を上下動させる等、周知の縫い付け動作に入る。このような各所の関連動作により、布２３の表面に対して添え付けられるコード２５の先端は、縫い針１５に装備された縫い糸２４により図２（Ｂ）（Ｃ）に示されるように縫い付けられる。
縫い付け動作の進行により布２３が次々と移動し、ボビン３に巻かれていたコード２５は逐次引き出され、次々と布２３に沿わされ、かつ縫い付けられ、ボビン３に巻かれていたコード２５は逐次減少し、巻糸26の直径は小径位置Ｄ２に向かう。 As is well known, the cloth 23 stretched on the embroidery frame is operated in a two-dimensional direction of XY according to a predetermined program by an embroidery frame driving device (not shown) on the needle plate as is well known.
On the other hand, the sewing machine mechanism 1 is operated in synchronization with this movement. Based on the program, the sewing machine mechanism unit 1 rotates the rotary cylinder 12 with a predetermined rhythm, and moves the claw 19 engaged with the groove 18a up and down to swing the guide unit 88, thereby sewing needles. 15 and cloth presser 16 are moved up and down, and a known sewing operation is started. As shown in FIGS. 2 (B) and 2 (C), the tip of the cord 25 attached to the surface of the cloth 23 is sewn by the sewing thread 24 provided on the sewing needle 15 as shown in FIGS. It is done.
With the progress of the sewing operation, the cloth 23 moves one after another, and the cord 25 wound around the bobbin 3 is successively pulled out, along the cloth 23 one after another, and sewn and the cord 25 wound around the bobbin 3. Decreases successively, and the diameter of the wound yarn 26 goes to the small diameter position D2.

斯かる状況の下では、当接部７４は、巻糸26の外周26ａに沿っているので逐次ボビン３の巻芯９５に近付き巻糸26に対する付勢力を弱める。
従ってボビン３の巻糸２６の量が最大径Ｄ１である（半径が大きい）ときは、比較的軽い力でコード２５を引き出すことができるが、その時は当接部７４は巻糸26の周面に対して比較的強い力で弾力的に当接し大きなブレーキをかける。
一方、ボビン３の巻糸２６の量が小径Ｄ２である（半径が小さい）ときは、比較的強い力でコード２５を引き出すことになる。しかし、その時は当接部７４は巻糸26の周面に対して比較的弱い力で弾力的に当接し、ブレーキは小さい。
従って、巻糸２６の量が最大径Ｄ１であっても、小径Ｄ２になっても、コード２５を引き出す力、即ち、コード２５に加わるテンションは常に同じようになる。 Under such circumstances, the contact portion 74 is along the outer periphery 26 a of the winding thread 26, so that it gradually approaches the core 95 of the bobbin 3 and weakens the urging force against the winding thread 26.
Therefore, when the amount of the winding thread 26 of the bobbin 3 is the maximum diameter D1 (the radius is large), the cord 25 can be pulled out with a relatively light force. A large brake is applied with a relatively strong force.
On the other hand, when the amount of the wound thread 26 of the bobbin 3 is the small diameter D2 (the radius is small), the cord 25 is pulled out with a relatively strong force. However, at that time, the contact portion 74 is elastically contacted with a relatively weak force against the circumferential surface of the wound yarn 26, and the brake is small.
Therefore, even if the amount of the winding thread 26 is the maximum diameter D1 or the small diameter D2, the force for pulling out the cord 25, that is, the tension applied to the cord 25 is always the same.

なお図２に示されるようにばね材として当接部７４を備えさせた構成のものと、従来の特許文献１におけるボビンと支持杆との間に「ボビン側方板バネ」を配設したものとの機能比較検査をしたので結果を次に紹介する。
・試験の目的
（ア）「ボビン側方板バネ」は巻き量に対するテンションの変化が大きいことの確認。
（イ）図２に示されるように素材（巻糸26）に、ばね材として当接部７４を当て、直接テンションを加えて巻き量による変化が小さいことの確認。
（ウ）回転方向によるテンションの違いの確認。
（エ）「配線用スパイラル(東洋技研 TSP-2.6 内径2.6mm)」を取付けた時と、ないときの違いの確認。
（オ）素材による凹凸での引っ掛による問題点の確認。 In addition, as shown in FIG. 2, a configuration in which a contact portion 74 is provided as a spring material, and a “bobbin side leaf spring” disposed between the bobbin and the support rod in the conventional Patent Document 1. The results of the comparison of the functions are introduced below.
・ Purpose of the test (a) Confirm that the tension change with the winding amount of the “bobbin side leaf spring” is large.
(A) As shown in FIG. 2, the contact portion 74 is applied to the material (winding thread 26) as a spring material, and direct tension is applied to confirm that the change due to the winding amount is small.
(C) Check the difference in tension depending on the direction of rotation.
(D) Confirmation of the difference between when the "spiral for wiring (Toyo Giken TSP-2.6 ID 2.6mm)" is installed and when it is not.
(E) Confirmation of problems caused by catching on unevenness due to the material.

・試験の結果（上記（ア）〜（オ）に夫々対応する結果）
（ア）について：「ボビン側方板バネ」は、巻量によるテンションの変化が大きいことが確認できた。
（イ）について：巻量によるテンションの変化が小さくなったことが確認できた。
（ウ）について：巻糸２６の量が小径Ｄ２になって、テンションが大きくなった時は、正回転方向（図２の右側のボビン3aの回転方向）に向けてばね材の当接部７４が配置されている方が有利に働くことが確認できた。
（エ）について：多くの場合「配線用スパイラル」を取付けた状態の方が有利に働くことが確認できた。
（オ）について：ビーズのような凹凸素材は、「配線用スパイラル」無しではばね材の先部における当接部74は使用できなかった。・ Test results (results corresponding to (a) to (e) above)
About (a): It was confirmed that the “bobbin side leaf spring” had a large change in tension depending on the winding amount.
Regarding (b): It was confirmed that the change in tension due to the winding amount was reduced.
Regarding (c): When the amount of the winding thread 26 becomes the small diameter D2 and the tension becomes large, the contact portion 74 of the spring material toward the normal rotation direction (the rotation direction of the right bobbin 3a in FIG. 2). It has been confirmed that the arrangement is more advantageous.
Regarding (d): In many cases, it was confirmed that the state where the “wiring spiral” was attached worked more advantageously.
Regarding (e): For the uneven material such as beads, the contact portion 74 at the tip of the spring material could not be used without the “wiring spiral”.

・考察
「ボビン側方板バネ」によるテンションは、巻量に大きく左右されるため好ましくない。よって図２のように、ばね材としての当接部74を加える方が有効である。更に実施にあたっては次のような配慮をするとよい。
本縫いハンドル機において、テープ、コード縫いは、図２の右側のボビン3aのようにように引き出しの回転方向（矢印２９方向）に対して引きずられるように当接部74を配置（左側を元部７２）にしてテンションを加え、「配線用スパイラル７６」は無し(ビーズ素材のようなものはないため)にするとよい。
千鳥、巻縫いは、ボビン交換時の「バネキャンセル操作（退避操作）」の容易性と、コード２５の引き出しと、ガイド部８８に対するコードの送り出しを考えると、図２の左側のボビン3bのようにボビンの回転方向（矢印２８方向）に対して、逆方向（右側を元部７２とし、当接部74を図のように左側に配置）する。なおこの場合「配線用スパイラル７６」は、当接部74に装着した方が良い。 -Consideration The tension by the “bobbin side leaf spring” is not preferable because it greatly depends on the winding amount. Therefore, it is more effective to add a contact portion 74 as a spring material as shown in FIG. In addition, the following considerations are recommended.
In the main sewing machine, the abutment 74 is arranged so that the tape and cord sewing are dragged with respect to the rotation direction of the drawer (in the direction of the arrow 29) like the bobbin 3a on the right side of FIG. It is preferable to apply tension to the portion 72) so that there is no “wiring spiral 76” (because there is no such as a bead material).
Staggering and winding stitches are like the bobbin 3b on the left side of FIG. 2, considering the ease of “spring canceling operation (retracting operation)” when replacing the bobbin, drawing out the cord 25, and feeding the cord to the guide portion 88. The bobbin is rotated in the direction opposite to the direction of the arrow (arrow 28 direction) (the right side is the base portion 72 and the contact portion 74 is arranged on the left side as shown). In this case, the “wiring spiral 76” is preferably attached to the contact portion 74.

次に縫い付け状態、例えば周知の千鳥縫いを示す図２（Ｂ）（Ｃ）を説明する。24bはコード２５を縫い付ける為の予定線、24aは針落ち位置（縫付位置）を示す。図２（Ｂ）にあってはコード２５をボビン３から直線的に繰り出すと共に、布２３を周知の刺繍機構を用いてX-Yに作動させて縫い付けする。図２（Ｃ）にあっては布２３を直進させ、上記糸ガイド機構８５におけるガイド部８８を針の動きに同期させて左右に振り動かすことにより縫い付けする。これらの動作においては、ボビンにおける糸の量の大小にかかわらず、ばね材７０の存在により、布の動きに伴うコード２５の引き出しは略一定のテンションで行われ、コード２５を予定位置に縫い付けできる。 Next, a sewing state, for example, FIGS. 2B and 2C showing a well-known zigzag stitch will be described. 24b indicates a planned line for sewing the cord 25, and 24a indicates a needle entry position (sewing position). In FIG. 2B, the cord 25 is fed out from the bobbin 3 linearly, and the cloth 23 is sewn by operating it in X-Y using a known embroidery mechanism. In FIG. 2 (C), the cloth 23 is moved straight, and the guide portion 88 in the thread guide mechanism 85 is sewed by swinging left and right in synchronization with the movement of the needle. In these operations, regardless of the amount of yarn in the bobbin, the cord 25 is pulled out with a substantially constant tension due to the movement of the cloth due to the presence of the spring material 70, and the cord 25 is sewn in a predetermined position. it can.

二つのボビン保持具を対称的に配置し、一方の保持具にはボビンを配置した状態の斜視図。The perspective view of the state which has arrange | positioned two bobbin holders symmetrically and arrange | positioned the bobbin to one holder. （Ａ）は二つのボビン保持具を対称的に配置し、両方の保持具に夫々フランジ部分を一部破断し巻糸とバネ材の当設部の関係がわかるようにした状態のボビンを装着した状態の正面図、（Ｂ）と（Ｃ）は布に対してコードが縫付けた例を説明する為の図。(A) Disposes two bobbin holders symmetrically, and installs bobbins in a state in which the flanges are partially broken in both holders so that the relationship between the winding thread and the spring member is understood. The front view of the state which carried out, (B) and (C) are the figures for demonstrating the example which the cord sewed with respect to the cloth. （Ａ）はボビン保持具の分解斜視図、（Ｂ）は糸ガイド機構を説明する為の正面図、（Ｃ）は（Ｂ）のIII−III端面図。(A) is an exploded perspective view of a bobbin holder, (B) is a front view for explaining a thread guide mechanism, and (C) is a III-III end view of (B). （Ａ）は、図２（Ａ）に示される保持具において、ボビンの着脱をするに当り、操作空間を形成する場合に補助アームを下降させる状態を説明する為の正面図、（Ｂ）は補助アームを着脱操作する場合の説明及びバネ材の持出部とバネ連動ピンとの係合位置関係を説明する為の一部破断説明図。FIG. 2A is a front view for explaining a state in which the auxiliary arm is lowered when forming the operation space in attaching and detaching the bobbin in the holder shown in FIG. The partially broken explanatory drawing for demonstrating the engagement position of the description in the case of attaching / detaching an auxiliary arm, and the taking-out part of a spring material, and a spring interlocking | linkage pin. （Ａ）は、バネ材の当接部が最大径の巻糸周面と、最小径の巻糸周面に当接する状態において、バネ力が変化する状態を説明する為の一部破断正面図、（Ｂ）は。調節リングを回動することによってバネ力が強弱変化することを説明する為の図。(A) is a partially broken front view for explaining a state in which the spring force changes in a state in which the contact portion of the spring material is in contact with the winding surface having the maximum diameter and the winding surface having the minimum diameter. (B). The figure for demonstrating that a spring force changes strongly by rotating an adjustment ring. 、（Ａ）は従来のボビン保持具を説明する為の一部破断正面図、（Ｂ）と（Ｃ）は布に対してコードが縫付けられた例を説明する為の平面図、（Ｄ）はコードにかかるテンションが小さい状態で縫付けられた場合を説明する為の正面図、（Ｅ）はコードにかかるテンションが大きい状態で縫付けられた場合を説明する為の正面図。, (A) is a partially broken front view for explaining a conventional bobbin holder, (B) and (C) are plan views for explaining an example in which a cord is sewn on a cloth, (D ) Is a front view for explaining a case where sewing is performed with a small tension applied to the cord, and (E) is a front view for explaining a case where sewing is performed with a large tension applied to the cord.

Explanation of symbols

１・・・ミシン機構部、２・・・ボビン保持具、３・・・ボビン、１１・・・基軸、１２・・・回転筒、１４・・・針棒、１５・・・針、１６・・・布押え、１７・・・ガイド用駆動機構、１８・・・回転リング、１９・・・爪、２０・・・伝達部材、２１・・・係合子、２２・・・針板、２３・・・布、２４・・・縫糸、２５・・・刺繍糸材（コード）、２６・・・巻糸、３０・・・保持手段、３１・・・基部材、３１ａ・・・装着面、３２・・・本体、３３、３４・・・巻バネ保持部、３８・・・連結部、４０・・・持出腕、４５・・・ボビンガイド、４６・・・掛合部、４８・・・固着手段（ボルト）、５２・・・受止部、５５・・・開閉手段、５６・・・抜出防止部材、５７・・・抜出防止孔、５８・・・操作爪、５９・・・押圧部材、６１・・・固着手段（ボルト）、６２・・・バネ連動ピン、７０・・・バネ材（ネジリバネ）、７１・・・端部、７２・・・巻部、７３・・・持出部、７４・・・当接部、７６・・・滑り部材（スパイラル）、７７・・・摩擦部材（フェルト）、７８・・・調節リング、７９・・・貫通孔、８１・・・バネ係止部、８２・・・波ワッシャー（板バネ材）、８５・・・糸ガイド機構、８６・・・枢止部、８７・・・係合部、８８・・・ガイド部、８９・・・長孔、９０・・・ネジ、９３・・・連結部材、95ａ・・・中空部、９６・・・枠板（フランジ）、９７・・・糸巻空間
DESCRIPTION OF SYMBOLS 1 ... Sewing machine part, 2 ... Bobbin holder, 3 ... Bobbin, 11 ... Base shaft, 12 ... Rotating cylinder, 14 ... Needle bar, 15 ... Needle, 16. ················ 17 ..Cloth, 24 ... sewing thread, 25 ... embroidery thread material (code), 26 ... winding thread, 30 ... holding means, 31 ... base member, 31a ... mounting surface, 32 ... Main body, 33, 34 ... Wind spring holding part, 38 ... Connecting part, 40 ... Take-out arm, 45 ... Bobbin guide, 46 ... Hanging part, 48 ... Fixed Means (bolts), 52 ... receiving part, 55 ... opening and closing means, 56 ... extraction prevention member, 57 ... extraction prevention hole, 58 ... operation claw, 59 ... pressing Part , 61 ... fixing means (bolt), 62 ... spring interlocking pin, 70 ... spring material (torsion spring), 71 ... end, 72 ... winding part, 73 ... take-out part 74 ... Abutting part, 76 ... Sliding member (spiral), 77 ... Friction member (felt), 78 ... Adjustment ring, 79 ... Through hole, 81 ... Spring locking Part, 82 ... wave washer (leaf spring material), 85 ... thread guide mechanism, 86 ... pivot stop part, 87 ... engagement part, 88 ... guide part, 89 ... long Hole, 90 ... Screw, 93 ... Connecting member, 95a ... Hollow part, 96 ... Frame plate (flange), 97 ... Bobbin space

Claims

In the bobbin holder provided with a bobbin guide for rotatably supporting the bobbin at the tip of the take-out arm taken out from the base member,
A spring material is extended from the base member toward the outer periphery of the bobbin thread to be rotatably attached to the tip of the take-out arm, and the length of the spring material is Is set to a length that enables elastic contact with the outer periphery of the wound yarn,
The spring force of the spring material is such that when the amount of the wound yarn wound around the bobbin is the maximum diameter, the position of the tip of the spring material is at the position of the maximum diameter of the wound yarn and contacts with a strong force. As the amount of the wound yarn is reduced, the radius of the wound yarn is gradually reduced, and the position of the tip portion of the spring material gradually increases the pressure contact force toward the small diameter position. A bobbin that is set to move while decreasing.

The spring material is formed of a wire material, the base portion is wound in a coil shape, the free end is fastened to the base member, and the tip portion is parallel to the bobbin axis, and the surface of the wound yarn The bobbin holder according to claim 1, wherein the bobbin holder is formed so as to be in contact with the bobbin.

The spring material is formed of a wire material, the base portion is formed in a coil shape, and the free end thereof is fastened to an adjustment ring that is provided so as to be freely adjustable with respect to the base member. It is formed so as to be in contact with the surface of the wound yarn in a state parallel to the axis of the bobbin, and by rotating the adjusting ring, the pressure in contact with the surface of the wound yarn at the tip can be varied. The bobbin holder according to claim 1, wherein

In the bobbin holder provided with a bobbin guide for rotatably supporting the bobbin at the tip of the take-out arm taken out from the base member,
The base of the take-out arm is attached to one end of the base member, and an auxiliary arm corresponding to the take-out arm is rotatably attached to the other end of the base member.
To the other end of the bobbin guide, one end of which is supported by the tip of the take-out arm, the tip of the auxiliary arm is detachably attached, and both ends of the bobbin guide are attached to the tip of the take-out arm. And can be supported by the tip of the auxiliary arm,
When attaching and detaching the bobbin to the bobbin guide, the base member is used as an axis to rotate the tip of the auxiliary arm so as to be retracted from the periphery in the axial direction of the bobbin guide.
On the other hand, from the base member, a spring material is extended toward the outer periphery of the bobbin winding thread to be rotatably attached to the tip of the take-out arm, and the length of the spring material is: Set the tip to a length that allows elastic contact with the outer periphery of the wound yarn,
The spring force of the spring material is such that when the amount of the wound yarn wound around the bobbin is the maximum diameter, the position of the tip of the spring material is at the position of the maximum diameter of the wound yarn and contacts with a strong force. As the amount of the wound yarn is reduced, the radius of the wound yarn is gradually reduced, and the position of the tip portion of the spring material gradually increases the pressure contact force toward the small diameter position. It is set to move while decreasing,
Further, the auxiliary arm has an engagement with the spring material so that the spring material can be rotated in a direction away from the outer periphery of the wound yarn when the tip of the auxiliary arm is rotated with the base member as an axis. A bobbin characterized by having a spring interlocking pin to enable the combination.