JP2005021547A - Shuttle position changing device for sewing machine - Google Patents

Shuttle position changing device for sewing machine Download PDF

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Publication number
JP2005021547A
JP2005021547A JP2003207774A JP2003207774A JP2005021547A JP 2005021547 A JP2005021547 A JP 2005021547A JP 2003207774 A JP2003207774 A JP 2003207774A JP 2003207774 A JP2003207774 A JP 2003207774A JP 2005021547 A JP2005021547 A JP 2005021547A
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JP
Japan
Prior art keywords
hook
vertical
sewing
bobbin
sewing machine
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Pending
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JP2003207774A
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Japanese (ja)
Inventor
Eiji Yuki
英治 結城
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Individual
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Individual
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Priority to JP2003207774A priority Critical patent/JP2005021547A/en
Publication of JP2005021547A publication Critical patent/JP2005021547A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that each sewing advantageous point in a horizontal shuttle position, a vertical shuttle position and a vertical front shuttle position cannot be shared because the position of a rotating hook bobbin holder for holding a thread bobbin, and the position of a rotating hook rotated on the outside to scoop up a needle thread when a sewing needle comes into a lower position, are fixed in horizonal and vertical directions. <P>SOLUTION: In this shuttle position changing device for a sewing machine, the positions of the rotating hook bobbin holder for holding the bobbin, the rotating hook rotating around the outer periphery, and a support for supporting the rotating hook, are vertically rotated by 90° from the horizontal shuttle position into the vertical shuttle position, or vertically rotated by 90° from the horizontal shuttle position into the vertical front position, or horizontally rotated by 90° from the vertical front shuttle position into the vertical shuttle position according to sewing application, or the reverse position change is performed manually or automatically synchronizing with pattern selection to acquire all the optimum positions of the shuttle for ways of sewing and easy insertion of the thread bobbin in one sewing machine. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、縫製用途に応じて最も有利な位置に釜を変換移動できるミシン釜位置変換装置に関するものである。
【0002】
【従来の技術】
従来技術によるミシンは縫製用途によって上糸をすくう外釜の位置と外釜を保持する支持体の位置が決められ、ミシン本体内で固定されている。
【0003】
【発明が解決しようとする課題】
ミシン本体内で、下糸が入ったボビンケースおよび内釜の外側を回転している外釜の位置が水平および垂直方向に対して固定されているため、水平釜位置、垂直釜位置、垂直正面釜位置での各々の縫製上および操作上の有利な点を共有できないことである。
【0004】
直線本縫いミシンでは、ボビン外周を回転する外釜を垂直に位置させることにより、外釜が縫製方向と平行に回転するため、天秤による上糸の引き締め動作が早くでき、高速で縫え、しかも上糸が釜により水平方向に引き出されないのでヒッチ縫目が出にくい。
【0005】
しかし、ボビンを垂直かつ縫製方向と平行に回転する位置に固定されていると、直線縫い以外の千鳥縫いや刺繍縫いをしようとしても針が釜にあたってしまい、出来ないという欠点があり、ボビンケースが上から、すなわち、縫い台の面から挿入できないという不便さがあった。
【0006】
千鳥縫いミシンまたは刺繍ミシンでは、ボビンを垂直正面に保持することにより、針棒を横方向に振り出したときに、針が左右どちらの位置に来ても釜が上糸のループをすくって上糸を下糸に絡ませている。
【0007】
しかし、ボビンを垂直正面に保持する方法では、ボビンのセットをミシン本体正面にフタを設けて挿入しなくてはならないことと、上糸が釜により水平方向に引き出されるので、直線縫いの場合にもヒッチ縫目が出やすいという欠点があった。
【0008】
従来の水平釜位置固定のミシンでは、縫い台の面からふたを開けてボビンを簡単に挿入することが出来る。
【0009】
しかし、上糸が釜により水平方向に内釜の外周分だけ大きく引き出されるのでヒッチ縫目が出やすいという欠点があった。
【0010】
【課題を解決するための手段】
ボビンを保持する内釜とその外周を回る外釜およびその外釜を支える支持具の位置を縫製用途に応じて水平釜位置から垂直釜位置に垂直方向に90度回転移動させ、又は、水平釜位置から垂直正面位置に垂直方向に90度回転移動させ、又は、垂直正面釜位置から垂直釜位置に水平方向に90度回転移動させ、又は、その逆の位置変換を手動又は模様選択に同期させて自動で行うことにより、下糸ボビンの容易な挿入と縫い方に最も適した釜の位置が一台のミシンで全て得られるミシンの釜位置変換装置。
【0011】
【発明の実施の形態】
以下本発明のボビンを保持する内釜とその外周を回る外釡およびその外釜を支える支持体の位置を縫製用途に応じて水平方向または垂直方向に回転移動させるミシンの釜位置変換装置を説明する。
【0012】
図1はこの発明の一実施形態を示す斜視図である。図1で符号gは内釜を示し、この内釜の中にはボビンケースとボビンケースの中には下糸が巻かれたボビンが入っている。ボビンとボビンケースについては図1では省略してある。符号fはgの内釜の外側を回転する外釜である。eはその外釜を支える支持体である。本実施形態では外釜を支える支持体eにa、b、c、dの4つの支軸が挿入されている。図1に示す状態では、針hが上下する方向の上側、すなわち縫い台の面から下糸ボビンの入ったボビンケースを容易に挿入できる。ボビンケースを挿入した後、針の横方向への振り出しが不要な直線縫いをする場合は、手動または直線縫いを選択することによって、コンピューター制御装置を介して自動でdとcの支軸を貫く回転軸kとmを中心にして垂直方向に90度回転することにより、図7に示すように垂直釜位置に変換できる。
【0013】
また、手動、又は、模様縫いを選択することにより、コンピューター制御装置を介して自動で手動図1の水平釜の状態からaとbの支軸を貫く回転軸iとjを中心にして垂直方向に90度回転させることにより、図2に示すように垂直正面釜位置に変換できる。図2の垂直正面釜の状態からcとdを貫く回転軸kとmを中心にして水平方向に90度回転させることにより、図3に示すように垂直釜の位置に変換できる。
【0014】
図1において外釜を支える支持体eには回転支軸a、b、c、dとの連結、非連結を選択的に行えるように支軸が挿入できるほぼ同一径の穴があいており、ミシン本体側からa、b、c、dの支軸を差し込むことで外釜を支える支持体eは保持されている。
【0015】
【実施例】
発明の実施の形態の項目の中で説明したように図1において、dとcの支軸を貫く回転軸kとmを中心にして垂直方向に90度回転することにより、図7に示すように垂直釜位置に変換する場合は、図8に示すように回転に不要な支軸aとbは外釜を支える支持体eからは抜かれるので回転の妨げにならない。図1において、aとbの支軸を貫く回転軸iとjを中心にして垂直方向に90度回転することにより、図2に示すように垂直正面釜位置に変換する場合は、図9に示すように回転に不要な支軸cとdは外釜を支える支持体eからは抜かれるので回転の妨げにならない。
【0016】
【発明の効果】
釜の位置を水平、垂直、垂直正面と目的に合わせて一台のミシンで自在に変換出来ることになり、水平釜の利点、すなわち、ボビンまたはボビンケースを上から、すなわち縫製台の面から入れやすいという優位点と、垂直釜の利点、すなわち、外釜の回転方向が縫製方向に対して平行なので直線を縫う場合にヒッチ縫目でにくいという優位点、垂直正面釜の利点、すなわち、外釜によりすくわれる上糸の下方向に引き出されるので、天秤ですばやく上糸を引き締められるという優位点を共有できる。
【0017】
また、垂直釜の左右に模様が振り出せないという欠点が解消され、垂直釜と垂直正面釜のボビンケースが挿入しにくいという欠点も解消される。
【0018】
水平釜固定の場合、釜の内部の掃除をする場合、ごみや埃を履きだしにくいという欠点があったが、この釜位置変換装置を使用すれば、垂直正面釜位置に変換して履きだしが容易に行える。
【図面の簡単な説明】
【図1】ミシン釜位置変換装置の実施方法の一例を示した斜視図である。
【図2】ミシン釜位置変換装置の図1において説明した水平釜の位置が図1中で示す支軸aと支軸bによって90度回転させられ垂直正面釜の位置に変換させられた時の状態を示す斜視図である。
【図3】ミシン釜位置変換装置の図2において説明した垂直正面釜の位置が図2中で示す支軸cと支軸dによって90度回転させられ垂直釜の位置に変換させられた時の状態を示す斜視図である。
【図4】従来技術ではミシンの水平釜の位置を移動変換させる装置をもたないために水平釜から垂直方向に変換できなかったことを示す斜視図である。
【図5】従来技術ではミシンの垂直正面釜の位置を移動変換させる装置をもたないために垂直正面釜から水平釜位置または垂直釜位置に変換できなかったことを示す斜視図である。
【図6】従来技術ではミシンの垂直釜の位置を移動変換させる装置をもたないために垂直釜から水平釜位置または垂直正面釜位置に変換できなかったことを示す斜視図である。
【図7】ミシン釜位置変換装置の図1において説明した水平釜の位置が図1中で示す支軸cと支軸dによって90度回転させられ垂直正面の位置に変換させられた時の状態を示す斜視図である。
【図8】ミシン釜位置変換装置が図1の状態から、cとdの支軸を貫く回転軸kとmを中心にして垂直方向に90度回転する場合に、回転の妨げにならなくするために、回転に不要な支軸aとbが外釜を支える支持体eから抜かれた状態を示す斜視図である。
【図9】ミシン釜位置変換装置が図1の状態から、aとbの支軸を貫く回転軸iとjを中心にして垂直方向に90度回転する場合に、回転の妨げにならなくするために、回転に不要な支軸cとdが外釜を支える支持体eから抜かれた状態を示す斜視図である。
【符号の説明】
a 回転の支軸
b 回転の支軸
c 回転の支軸
d 回転の支軸
e 外釜を支える支持体
f 糸をすくう釜先がついたかまで縫製する場合に回転運動するもの(外釜)
g 下糸ボビンが入ったボビンケースおよび内釜
h 針
i aの回転支軸を貫く回転軸
j bの回転支軸を貫く回転軸
k cの回転支軸を貫く回転軸
m dの回転支軸を貫く回転軸
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sewing machine hook position conversion device capable of converting and moving a hook to the most advantageous position according to a sewing application.
[0002]
[Prior art]
In the sewing machine according to the prior art, the position of the outer hook for scooping the upper thread and the position of the support for holding the outer hook are determined depending on the sewing application, and are fixed in the sewing machine body.
[0003]
[Problems to be solved by the invention]
The position of the bobbin case containing the bobbin thread and the outer hook rotating outside the inner hook is fixed in the horizontal and vertical directions within the machine body. Each sewing and operation advantage at the hook position cannot be shared.
[0004]
In a straight lockstitch machine, the outer hook that rotates around the bobbin is positioned vertically, so that the outer hook rotates in parallel with the sewing direction, so that the upper thread can be tightened quickly with a balance, and the upper thread can be sewn at high speed. Since the thread is not pulled out horizontally by the hook, hitch stitches are difficult to come out.
[0005]
However, if the bobbin is fixed at a position that rotates vertically and parallel to the sewing direction, there is a disadvantage that the needle will come into contact with the hook even if staggered stitching or embroidery sewing other than straight stitching is performed, and the bobbin case There was an inconvenience that it could not be inserted from above, that is, from the surface of the sewing table.
[0006]
With a staggered sewing machine or an embroidery sewing machine, the bobbin is held in the vertical front, so that when the needle bar is swung out in the horizontal direction, the hook scoops the loop of the upper thread and the upper thread Is entangled in the lower thread.
[0007]
However, in the method of holding the bobbin on the vertical front, the bobbin set must be inserted with a lid on the front of the sewing machine body, and the upper thread is pulled out horizontally by the hook. However, there was a drawback that hitch stitches were easily generated.
[0008]
With a conventional sewing machine with a fixed horizontal hook position, the bobbin can be easily inserted by opening the lid from the surface of the sewing table.
[0009]
However, since the upper thread is pulled out by the hook in the horizontal direction by the outer circumference of the inner hook, there is a drawback that hitch stitches are easily generated.
[0010]
[Means for Solving the Problems]
The position of the inner hook that holds the bobbin, the outer hook that rotates around the outer periphery, and the support that supports the outer hook is rotated 90 degrees vertically from the horizontal hook position to the vertical hook position according to the sewing application, or the horizontal hook Rotate 90 degrees vertically from the position to the vertical front position, or rotate 90 degrees horizontally from the vertical front hook position to the vertical hook position, or reverse the position conversion in synchronization with manual or pattern selection A sewing machine hook position change device that can automatically obtain the position of the hook most suitable for easy insertion and sewing of the bobbin thread bobbin with a single sewing machine.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
The sewing machine shuttle position changing device for rotating and moving the inner hook holding the bobbin of the present invention, the outer hook rotating around the outer periphery and the position of the support supporting the outer hook in the horizontal direction or the vertical direction according to the sewing application will be described below. To do.
[0012]
FIG. 1 is a perspective view showing an embodiment of the present invention. In FIG. 1, symbol g indicates an inner hook, and a bobbin case in which the bobbin is wound is contained in the inner hook. The bobbin and bobbin case are omitted in FIG. Reference numeral f denotes an outer hook that rotates outside the inner hook of g. e is a support for supporting the outer pot. In this embodiment, four support shafts a, b, c, and d are inserted into the support body e that supports the outer hook. In the state shown in FIG. 1, the bobbin case containing the lower thread bobbin can be easily inserted from the upper side of the direction in which the needle h moves up, that is, the surface of the sewing table. After inserting the bobbin case, when performing straight stitches that do not require the needles to be swung out in the lateral direction, by selecting manual or straight stitches, the spindles of d and c are automatically passed through the computer controller. By rotating 90 degrees in the vertical direction around the rotation axes k and m, the vertical hook position can be converted as shown in FIG.
[0013]
In addition, by selecting manual or pattern sewing, the vertical direction around the rotation axes i and j passing through the support shafts a and b from the horizontal hook state of FIG. Can be converted into a vertical front hook position as shown in FIG. From the state of the vertical front hook in FIG. 2, it can be converted into the vertical hook position as shown in FIG. 3 by rotating 90 degrees horizontally around the rotation axes k and m passing through c and d.
[0014]
In FIG. 1, the support e that supports the outer hook has a hole of almost the same diameter into which the support shaft can be inserted so that the connection to the rotation support shafts a, b, c, and d can be selectively performed. The support body e that supports the outer hook is held by inserting the support shafts a, b, c, and d from the sewing machine main body side.
[0015]
【Example】
As described in the section of the embodiment of the invention, in FIG. 1, by rotating 90 degrees in the vertical direction around the rotation axes k and m passing through the spindles of d and c, as shown in FIG. In the case of conversion to the vertical hook position, as shown in FIG. 8, the supporting shafts a and b unnecessary for rotation are removed from the support body e supporting the outer hook, so that the rotation is not hindered. In FIG. 1, when turning to the vertical front hook position as shown in FIG. 2 by rotating 90 degrees in the vertical direction around the rotation axes i and j passing through the support shafts a and b, FIG. As shown, the supporting shafts c and d that are not required for rotation are removed from the support e that supports the outer hook, so that the rotation is not hindered.
[0016]
【The invention's effect】
The position of the hook can be freely changed with one sewing machine according to the purpose, horizontal, vertical, vertical front, and the advantage of the horizontal hook, that is, the bobbin or bobbin case can be inserted from the top, that is, from the sewing table surface. The advantage of being easy and the advantage of the vertical hook, that is, the advantage that the rotation direction of the outer hook is parallel to the sewing direction, making it difficult to hitch stitches when sewing straight lines, the advantage of the vertical front hook, that is, the outer hook Since the upper thread is drawn downward by the screw, the advantage that the upper thread can be quickly tightened with a balance can be shared.
[0017]
In addition, the disadvantage that the pattern cannot be drawn to the left and right of the vertical hook is eliminated, and the disadvantage that the bobbin case of the vertical hook and the vertical front hook is difficult to insert is also eliminated.
[0018]
When the horizontal hook is fixed, cleaning the inside of the hook has the disadvantage that it is difficult to put out dirt and dust. Easy to do.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a method for implementing a sewing machine shuttle position conversion device.
FIG. 2 shows the position of the horizontal hook described in FIG. 1 of the sewing machine hook position conversion device when it is rotated 90 degrees by the support shaft a and the support shaft b shown in FIG. It is a perspective view which shows a state.
FIG. 3 shows the position of the vertical hook described in FIG. 2 of the sewing machine hook position conversion device when it is rotated 90 degrees by the support shaft c and the support shaft d shown in FIG. It is a perspective view which shows a state.
FIG. 4 is a perspective view showing that the horizontal hook cannot be converted in the vertical direction because there is no device for moving and converting the position of the horizontal hook of the sewing machine in the prior art.
FIG. 5 is a perspective view showing that the vertical front hook cannot be converted into the horizontal hook position or the vertical hook position because the conventional technique does not have a device for moving and converting the position of the vertical front hook of the sewing machine.
FIG. 6 is a perspective view showing that the vertical hook cannot be changed from the vertical hook position to the horizontal hook position or the vertical front hook position because the conventional technique does not have a device for moving and converting the position of the vertical hook of the sewing machine.
7 shows a state when the position of the horizontal hook described in FIG. 1 of the sewing machine hook position converting device is rotated 90 degrees by the support shaft c and the support shaft d shown in FIG. FIG.
FIG. 8 prevents the rotation of the sewing machine position conversion device from the state shown in FIG. 1 when it rotates 90 degrees in the vertical direction around the rotation axes k and m passing through the support shafts c and d. For this reason, it is a perspective view which shows the state from which the spindles a and b which are unnecessary for rotation were extracted from the support body e which supports an outer hook.
FIG. 9 shows that when the sewing machine position changing device rotates 90 degrees in the vertical direction around the rotation axes i and j passing through the support shafts a and b from the state shown in FIG. For this reason, it is a perspective view which shows the state from which the spindles c and d which are unnecessary for rotation were extracted from the support body e which supports an outer hook.
[Explanation of symbols]
a Rotating spindle b Rotating spindle c Rotating spindle d Rotating spindle e Support body supporting outer hook f Rotating motion when sewing to the end where the thread scoop is attached (outer pot)
g Bobbin case containing a bobbin thread bobbin and inner hook h Rotating support shaft of rotating shaft md passing through rotating supporting shaft of rotating shaft k c passing through rotating supporting shaft of rotating shaft j b passing through rotating supporting shaft of needle ia Rotating shaft that penetrates

Claims (1)

ミシンにおいてボビンの外周を回転する外釜とそれを支える支持体の位置を縫製用途に応じて水平位置から垂直位置に、水平位置から垂直正面位置に、垂直正面位置から垂直位置に、又はその逆に手動又は模様選択に同期させて自動で変えることにより、縫い方に最も適した釜の位置が得られるミシンの釜位置変換装置。In the sewing machine, the position of the outer hook that rotates the outer periphery of the bobbin and the support that supports it is changed from the horizontal position to the vertical position, from the horizontal position to the vertical front position, from the vertical front position to the vertical position, or vice versa, depending on the sewing application. The sewing machine position change device for the sewing machine can obtain the position of the hook most suitable for the sewing method by changing the position manually or in synchronization with the pattern selection.
JP2003207774A 2003-06-30 2003-06-30 Shuttle position changing device for sewing machine Pending JP2005021547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003207774A JP2005021547A (en) 2003-06-30 2003-06-30 Shuttle position changing device for sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003207774A JP2005021547A (en) 2003-06-30 2003-06-30 Shuttle position changing device for sewing machine

Publications (1)

Publication Number Publication Date
JP2005021547A true JP2005021547A (en) 2005-01-27

Family

ID=34190074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003207774A Pending JP2005021547A (en) 2003-06-30 2003-06-30 Shuttle position changing device for sewing machine

Country Status (1)

Country Link
JP (1) JP2005021547A (en)

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