JP2007097772A - Large pressure foot device of piping sewing machine - Google Patents

Large pressure foot device of piping sewing machine Download PDF

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Publication number
JP2007097772A
JP2007097772A JP2005290246A JP2005290246A JP2007097772A JP 2007097772 A JP2007097772 A JP 2007097772A JP 2005290246 A JP2005290246 A JP 2005290246A JP 2005290246 A JP2005290246 A JP 2005290246A JP 2007097772 A JP2007097772 A JP 2007097772A
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guide shaft
ball
cloth
presser
stitching
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JP2005290246A
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JP4769534B2 (en
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Yutaka Hirasawa
裕 平澤
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Juki Corp
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Juki Corp
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Priority to JP2005290246A priority Critical patent/JP4769534B2/en
Priority to DE102006046362.5A priority patent/DE102006046362B4/en
Priority to CN2006101414599A priority patent/CN1944751B/en
Priority to CZ2006-619A priority patent/CZ306110B6/en
Publication of JP2007097772A publication Critical patent/JP2007097772A/en
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B3/00Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/10Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for making piped openings

Abstract

<P>PROBLEM TO BE SOLVED: To adjust a large pressure foot in an appropriate position when changing over between double and single piping. <P>SOLUTION: This large pressure foot is provided with a pair of large pressure feet 51 retaining a welt cloth, a base part 51 moving it in the cloth feed direction and a pair of large pressure foot retaining mechanisms 70 individually retaining the respective large pressure feet. Each large pressure foot retaining mechanism is provided with a first guide shaft 71 supported extending to the outside, and a presser arm 72 movable along the first guide shaft and retaining the large pressure foot; and at least one large pressure foot is provided with a changeover driving means 73 changing over between a single piping position and a double piping position fitted to the double welting, a first adjusting means 80 having a first operation member 82 threadedly engaged with the first guide shaft 71 and adjusting the rotation position, a second guide shaft 91, a second operation member 93 threadedly engaged with the second guide shaft and adjusting the rotation position, and an abutment member 94 abutting on the second operation member 93. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、玉縁縫いミシンの大押さえ装置に関する。   The present invention relates to a large presser device for an edge stitch sewing machine.

玉縁縫いは、身頃生地のポケットの周囲に玉縁布を縫いつける際に行われる縫い方法であり、ポケットの開口の両側に玉縁が形成される両玉縫いと片側にのみ形成される片玉縫いの二種類がある。
従来の玉縁縫いミシンが行う両玉縫いの概略を図8(A)に示す。玉縁縫いミシンは、両玉縫いに際し、身頃生地Mの上に重ねられた玉縁布Tの上に断面逆T字状のバインダー201を押し当てて、当該バインダー201の逆T字形状に沿わせるように一対の大押さえ202が保持を行い、かかる状態でバインダー201の長手方向に沿って布送り方向に身頃生地M及び玉縁布Tの送りを行う。
そして、バインダーの下流側で二本針203による縫いを行うと共に二本針203の間の位置でセンターメス204による切断を行う。その結果、センターメス204の切断によりポケットの開口が形成され、開口の両側では玉縁布Tが袋状に身頃生地Mに縫いつけられて両玉縁Bが形成される。そして、図8(B)のように、開口の両側の玉縁布Tの袋状の部分がそれぞれ裏返されると、当該各玉縁Bの先端部が互いに対向してポケットの開口を塞いだ状態となる。
Ball edge stitching is a sewing method performed when sewing a ball edge cloth around the pocket of the body cloth. Both ball stitches are formed on both sides of the pocket opening and one ball formed only on one side. There are two types of sewing.
FIG. 8A shows an outline of the double stitching performed by the conventional bead-sewn sewing machine. In the case of sewing both balls, the ball stitch sewing machine presses a binder 201 having a reverse T-shaped cross section on the ball fabric T overlapped on the body cloth M, and follows the reverse T shape of the binder 201. In this state, the pair of large pressers 202 hold, and the body cloth M and the ball cloth T are fed in the cloth feeding direction along the longitudinal direction of the binder 201.
Then, sewing with the two needles 203 is performed on the downstream side of the binder, and cutting with the center knife 204 is performed at a position between the two needles 203. As a result, the opening of the pocket is formed by cutting the center knife 204, and on both sides of the opening, the ball cloth T is sewn to the body cloth M in a bag shape to form both ball edges B. Then, as shown in FIG. 8 (B), when the bag-like portions of the edge cloth T on both sides of the opening are turned upside down, the tips of the respective edge edges B face each other and block the opening of the pocket. It becomes a state.

一方、片玉縫いは、図9(A)に示すように、一方の大押さえ202によりバインダー201の片側のみに玉縁布Tが保持され、バインダー201の反対側には当該バインダー201の下側に挟まれないように向当て布Kが他方の大押さえ202に保持される。
そして、センターメス204による切断を行いつつ、二本針203により縫製が行われる。その結果、図9(B)のように、開口の片側に形成される玉縁Bが裏返されるとポケットの開口を塞いだ状態となる。
On the other hand, as shown in FIG. 9A, one-sided stitching is performed by holding a ball edge fabric T only on one side of the binder 201 by one large presser 202, and the lower side of the binder 201 on the opposite side of the binder 201. The facing cloth K is held by the other large presser 202 so as not to be sandwiched between the two.
Then, sewing is performed with the two needles 203 while cutting with the center knife 204. As a result, as shown in FIG. 9B, when the bead B formed on one side of the opening is turned over, the opening of the pocket is closed.

ところで、玉縁縫いでは、二本針203の間隔の幅Gが身頃生地Mの開口幅となる。従って、両玉縫いの場合には、身頃生地Mの開口部分をその両側から折り返された一対の玉縁Bが塞ぐためには、開口幅Gを二分して玉縁をG/2の幅とする必要がある。一方、片玉縫いの場合には玉縁Bが一つしかないので、その幅をGとする必要がある。
従って、両玉縫いを行う際には左右対称なバインダーを使用し、片玉縫いを行う際には玉縁Bが形成される一端側が幅広のバインダーが使用されていた。
そして、従来の玉縁縫いミシンにあっては、上記各バインダーに対応するために大押さえを左右方向に移動させるエアシリンダと、大押さえを両玉縫いと片玉縫いとに適した位置に位置決めする位置決め機構とを備えていた。
かかる位置決め機構は、大押さえと共に左右移動を行う長穴を備えた取付板と、取付板の長穴に嵌挿されたボス状の板止めネジとを備え、長穴の一端と他端とに板止めネジを当てることで二位置に大押さえを位置決めして両玉縫いと片玉縫いとに適した位置の切り替えが行われていた。
実開昭63−147185号公報
By the way, in the ball stitching, the width G of the interval between the two needles 203 becomes the opening width of the body cloth M. Therefore, in the case of both ball stitches, in order to close the opening portion of the body cloth M with the pair of rims B folded from both sides, the opening width G is divided into two to make the rim G / 2 wide. There is a need. On the other hand, in the case of one-sided stitching, there is only one edge B, so the width needs to be G.
Therefore, a bilaterally symmetric binder is used when performing both-ball stitching, and a binder with a wide end at which the ball edge B is formed is used when performing single-ball stitching.
In the conventional edge stitch sewing machine, an air cylinder for moving the large presser in the left-right direction to correspond to each of the binders described above, and the large presser are positioned at positions suitable for both ball stitching and single ball stitching. And a positioning mechanism.
Such a positioning mechanism includes a mounting plate having a long hole that moves left and right together with a large presser, and a boss-shaped plate set screw that is fitted into the long hole of the mounting plate, and is provided at one end and the other end of the long hole. A large presser was positioned at two positions by applying a plate set screw, and the position suitable for both ball stitching and one ball stitching was switched.
Japanese Utility Model Publication No. 63-147185

上記従来の玉縁縫いミシンでは、縫い条件、例えば玉縁布Tの布厚が異なると、両玉縫いと片玉縫いとで大押さえを位置決めすべき位置が変わってくる。
しかしながら、上記従来例にあっては、取付板の組み付けを行う際の微調整のための構成は備えているが、規制板による大押さえの規制位置を調節する手段は設けられてなく、玉縁布Tの厚さ変化に対応することはできなかった。
In the above-described conventional ball stitch sewing machine, when the sewing conditions, for example, the thickness of the ball margin cloth T, are different, the position where the large presser is to be positioned changes between the two ball stitches and the one ball stitch.
However, in the above conventional example, a configuration for fine adjustment when the mounting plate is assembled is provided, but no means for adjusting the restriction position of the large press by the restriction plate is provided. The change in the thickness of the fabric T could not be accommodated.

本発明は、両玉縫いと片玉縫いとの切り替えにおいて、大押さえを適正な位置に調整可能とすること、その目的とする。   An object of the present invention is to make it possible to adjust the large presser to an appropriate position in switching between double-ball stitching and single-ball stitching.

請求項1記載の発明は、上下動する二本針の両側で身頃生地に重ねられた玉縁布を押圧保持する一対の大押さえと、対向配置される一対の支持部を有し、送り駆動手段に連結されて布送り方向に移動する土台部と、土台部に設けられ、各支持部に支持され、各大押さえを個別に保持する一対の大押さえ保持機構とを備え、各大押さえ保持機構は、対向配置される各支持部にその外側に向けて延出支持された第一のガイド軸と、一端が第一のガイド軸に沿って移動可能に支持され、他端が大押さえを保持する押さえ腕とを備えてなる玉縁縫いミシンの大押さえ装置において、少なくとも一方の大押さえ保持機構は、押さえ腕を第一のガイド軸に沿って支持部に対して接近又は離隔移動させることにより、身頃生地及び玉縁布に対する片玉縫いに適する片玉縫い位置と両玉縫いに適する両玉縫い位置とに切り替える切替駆動手段と、切替駆動手段による大押さえの片玉縫い位置の調整を行う第一調整手段と、切替駆動手段による前記大押さえの両玉縫い位置の調整を行う第二調整手段とを備え、第一調整手段は、押さえ腕よりも外側に突出した第一のガイド軸の端部に形成された第一のネジ部と、離隔移動を行う押さえ腕に当接するように第一のガイド軸に設けられると共に第一のネジ部に螺合して回転操作により位置調整可能な第一の操作部材とを有し、第二調整手段は、押さえ腕に前記第一のガイド軸と同じ方向に向けて延出支持された第二のガイド軸と、第二のガイド軸の端部に形成された第二のネジ部と、第二のネジ部に螺合して回転操作により位置調整可能な第二の操作部材と、押さえ腕の離隔移動側に位置し、接近移動を行う押さえ腕と共に移動する第二の操作部材に当接するように支持部に設けられた突き当て部材とを備える、という構成を採っている。   The invention according to claim 1 has a pair of large presses for pressing and holding a ball cloth stacked on the body cloth on both sides of the two needles that move up and down, and a pair of support portions arranged to face each other. Each large presser holding mechanism includes a base part connected to the means and moving in the cloth feeding direction, and a pair of large presser holding mechanisms that are provided on the base part and supported by the respective support parts and individually hold the respective large pressers. The mechanism includes a first guide shaft that is extended and supported by each of the support portions that are arranged opposite to each other, and one end that is supported so as to be movable along the first guide shaft, and the other end that is a large presser. In a large presser device for a stitched sewing machine comprising a presser arm for holding, at least one large presser holding mechanism moves the presser arm toward or away from the support portion along the first guide shaft. To sew one piece of garment and ball cloth Switching drive means for switching between a one-ball sewing position to be performed and a double-ball sewing position suitable for both-ball sewing, a first adjustment means for adjusting the one-ball sewing position of the large press by the switching drive means, and the large by the switching drive means A second adjusting means for adjusting the ball stitching position of the presser, and the first adjusting means includes a first screw portion formed at an end of the first guide shaft that protrudes outward from the presser arm. And a first operating member that is provided on the first guide shaft so as to abut against a pressing arm that performs the separation movement, and that is screwed into the first screw portion and can be adjusted in position by a rotating operation, The adjusting means includes a second guide shaft that is extended and supported by the pressing arm in the same direction as the first guide shaft, a second screw portion formed at an end of the second guide shaft, Second operation member that can be screwed into the second screw portion and position-adjustable by rotating operation Located in spaced movable side pressing arm, and a butting member provided on the support portion so as to contact the second operating member that moves with the presser arm to perform the approach movement, adopts a configuration that.

請求項2記載の発明は、請求項1記載の発明と同様の構成を備えると共に、第一の操作部材及び第二の操作部材には、所定回転角度ごとに回転操作させる、という構成を採っている。   The invention described in claim 2 has the same configuration as that of the invention described in claim 1, and adopts a configuration in which the first operation member and the second operation member are rotated at predetermined rotation angles. Yes.

請求項1記載の発明は、両玉縫いと片玉縫いとを切り替える際には、少なくとも一方の大押さえ保持機構が備える切替駆動手段により、押さえ腕の移動が行われる。
その際、押さえ腕が第一のガイド軸に沿って土台部の支持部から離隔する方向に移動する場合には、その先にある第一の操作部材に当接して位置決めが行われる。
また、押さえ腕が第一のガイド軸に沿って土台部の支持部に接近する方向に移動する場合には押さえ腕と共に移動する第二のガイド軸に設けられた第二の操作部材が突き当て部材に当接して位置決めが行われる。
つまり、押さえ腕は、第一の調節手段と第二の調節手段とにより二位置に位置決めされる。従って、これらの二位置の一方を両玉縫いに適した位置に大押さえを位置決めさせる位置とし、他方を片玉縫いに適した位置に大押さえを位置決めさせる位置に設定することで、切り替えを適正に行うことができる。
According to the first aspect of the present invention, when switching between both-ball stitching and single-ball stitching, the pressing arm is moved by the switching drive means provided in at least one large press-holding mechanism.
At this time, when the pressing arm moves along the first guide shaft in a direction away from the support portion of the base portion, the positioning is performed by contacting the first operating member at the tip.
Further, when the pressing arm moves along the first guide shaft in a direction approaching the support portion of the base portion, the second operation member provided on the second guide shaft that moves together with the pressing arm abuts. Positioning is performed in contact with the member.
That is, the pressing arm is positioned at two positions by the first adjusting means and the second adjusting means. Therefore, one of these two positions is set as a position for positioning the large presser at a position suitable for double-sewing, and the other is set as a position for positioning the large presser at a position suitable for single-ball sewing, so that switching is performed properly. Can be done.

そして、第一の調節手段による位置決めの位置を調整する際には、第一のネジ部に螺合する第一の操作部材に回転操作を加えることで第一のガイド軸に沿って当該第一の操作部材の移動調節ができる。また、第二の調節手段による位置決めの位置を調整する際には、第二のネジ部に螺合する第二の操作部材に回転操作を加えることで第二のガイド軸に沿って当該第二の操作部材の移動調節ができる。
従って、玉縁布が異なる各種の厚さであっても、これに容易に対応して玉縁縫いを行うことが可能となる。
Then, when adjusting the position of positioning by the first adjusting means, the first operating member screwed into the first threaded portion is rotated to apply the first operation along the first guide shaft. The movement of the operating member can be adjusted. Further, when adjusting the position of positioning by the second adjusting means, the second operation member screwed into the second screw portion is rotated to apply the second operation member along the second guide shaft. The movement of the operating member can be adjusted.
Therefore, even when the ball edge fabric has various thicknesses, the ball edge sewing can be performed easily corresponding to this.

また、上記発明は、第一の操作部材と第二の操作部材とが、それぞれ第一のネジ部と第二のネジ部とに螺合しているので、それぞれを回転操作するという非常に簡易な操作だけで容易に両玉縫いと片玉縫いにおける大押さえの位置調節が可能となる。
また、その調節作業は工具を不要とすることが可能である。
さらに、第一及び第二の操作部材は、土台部の支持部に対して外側に向けて延出支持された第一及び第二のガイド軸の先端部に設けられているので、いずれも押さえ腕よりも外側に位置することで操作を行いやすい配置となり、操作性の向上を図ることが可能となる。
In the above invention, since the first operating member and the second operating member are screwed into the first screw portion and the second screw portion, respectively, it is very easy to rotate each of them. It is possible to easily adjust the position of the large presser in both ball stitching and single ball stitching with a simple operation.
Moreover, the adjustment work can make a tool unnecessary.
Furthermore, since the first and second operation members are provided at the tip portions of the first and second guide shafts that are extended and supported outward with respect to the support portion of the base portion, both of them are pressed. By being positioned outside the arm, it is easy to operate and it is possible to improve operability.

なお、「対向配置される各支持部の外側」の方向とは、一対の支持部を中心として、一対の大押さえが互いに離隔する方向をいうものとする。   In addition, the direction of “the outside of the support portions arranged to face each other” refers to a direction in which the pair of large pressers are separated from each other around the pair of support portions.

請求項2記載の発明は、第一の操作部材又は第二の操作部材による回転操作を行う際に、所定回転角度単位ので回転操作が可能となる。従って、第一のネジ部又は第二のネジ部のネジピッチに応じて所定の回転角度単位に対応する移動距離で大押さえの位置決め位置を調整することが可能となる。
このため、両玉縫いと片玉縫いの位置決め調整作業において何回の回転角度単位での回転操作を加えたかを数えることで、位置調整量の目安となり、当該位置調整量を容易に認識することができるので、正確に任意の位置に位置調整することが可能となる。
According to the second aspect of the present invention, when the rotation operation is performed by the first operation member or the second operation member, the rotation operation can be performed in units of a predetermined rotation angle. Therefore, it is possible to adjust the positioning position of the large presser by the movement distance corresponding to a predetermined rotation angle unit according to the screw pitch of the first screw portion or the second screw portion.
For this reason, by counting the number of rotation operations in units of rotation angles in the positioning adjustment work for both ball stitching and single ball stitching, it becomes a guideline for the position adjustment amount, and the position adjustment amount can be easily recognized. Therefore, the position can be accurately adjusted to an arbitrary position.

(発明の実施形態の全体構成)
以下、本発明の実施の形態である玉縁縫いミシン10について図1乃至図7に基づいて説明する。図1は玉縁縫いミシン10の全体の概略構成を示す斜視図である。なお、本実施の形態においては、各図中に示したXYZ軸を基準にしてそれぞれの方向を定めるものとし、Z軸方向は後述するセンターメスの上下動方向と一致し、縫製作業を行う平面はZ軸方向と垂直となり、当該作業平面に平行であって布送りが行われる方向をX軸方向とし、作業平面に平行であってX軸方向に直交する方向をY軸方向とする。
(Overall configuration of the embodiment of the invention)
Hereinafter, a bead stitch sewing machine 10 according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an overall schematic configuration of a bead stitch sewing machine 10. In the present embodiment, the respective directions are determined with reference to the XYZ axes shown in the drawings, and the Z-axis direction coincides with the vertical movement direction of the center knife, which will be described later, and is a plane for performing the sewing work. Is perpendicular to the Z-axis direction and is parallel to the work plane and the direction in which the cloth is fed is the X-axis direction, and the direction parallel to the work plane and perpendicular to the X-axis direction is the Y-axis direction.

玉縁縫いミシン10は、二本針14,14により形成される二本の平行な縫い目Tにより身頃生地Mに対して玉縁布Tを縫着すると共にこれらの布地の送り方向Fに沿った直線状の切れ目と当該切れ目の両端部に略V字状の切れ目とを形成するミシンである。
そして、この玉縁縫いミシン10は、直線状の切れ目の両側に玉縁Bを形成する両玉縫いと片側のみに玉縁を形成する片玉縫いとを切り替え操作により行うことが可能なミシンである。
上記玉縁縫いミシン10は、縫製の作業台となるミシンテーブル11と、ミシンテーブル11に配置されたミシンフレーム12と、身頃生地M及び玉縁布Tからなる布地の送りを行う大押さえ装置50と、身頃生地Mの上側で玉縁布Tを上方から押さえるバインダー30a(30b)と、バインダー30a(30b)の布送り方向Fにおける下流側近傍であってバインダー30a(30b)の両側で針落ちを行う針上下動機構と、各縫い針14の布送り方向下流側でセンターメス15を昇降させて身頃生地M及び玉縁布Tに切れ目を形成するセンターメス機構と、直線状の切れ目の両端となる位置に略V字状の切れ目Vを形成するコーナーメス機構20とを備えている。
以下各部を詳説する。
The bead stitch sewing machine 10 sews the bead fabric T to the body fabric M by means of two parallel stitches T formed by the two needles 14 and 14 and follows the feed direction F of these fabrics. The sewing machine forms a straight cut and a substantially V-shaped cut at both ends of the cut.
This bead-sewn sewing machine 10 is a sewing machine capable of performing a switching operation between both ball stitches that form a bead B on both sides of a linear cut and one ball stitch that forms a bead only on one side. is there.
The edge stitch sewing machine 10 includes a sewing machine table 11 serving as a sewing work table, a sewing machine frame 12 arranged on the sewing machine table 11, and a large presser device 50 that feeds a cloth made of a body cloth M and a ball cloth T. A binder 30a (30b) that holds the ball cloth T from above on the upper side of the body cloth M, and a needle drop on both sides of the binder 30a (30b) in the vicinity of the downstream side in the cloth feeding direction F of the binder 30a (30b). A needle up-and-down movement mechanism for performing the sewing, a center knife mechanism for raising and lowering the center knife 15 on the downstream side in the cloth feeding direction of each sewing needle 14 to form a cut in the body cloth M and the ball cloth T, and both ends of the linear cut And a corner knife mechanism 20 for forming a substantially V-shaped cut V at the position.
Each part is described in detail below.

(テーブル及びミシンフレーム)
テーブル11はその上面がX−Y平面に平行であって、水平な状態で使用される。そして、テーブル11における縫い針14による針落ち位置には針板13が装着されている。針板13には、二本の縫い針14が個別に挿入される針穴と、センターメス15が挿通されるスリットが形成されている。
また、テーブル11上には、ミシンフレーム12のベッド部12aを格納する凹部が形成されており、当該凹部にミシンフレーム12は設置されている。さらに、テーブル11には、ミシンフレーム12の布送り方向下流側に大押さえ装置50とコーナーメス機構20とが配置され、布送り方向上流側にはバインダー機構(バインダー30a以外は図示略)が配置されている。
(Table and sewing frame)
The table 11 has an upper surface parallel to the XY plane and is used in a horizontal state. A needle plate 13 is mounted at a needle drop position by the sewing needle 14 on the table 11. The needle plate 13 is formed with a needle hole into which the two sewing needles 14 are individually inserted and a slit through which the center knife 15 is inserted.
A recess for storing the bed 12a of the sewing machine frame 12 is formed on the table 11, and the sewing machine frame 12 is installed in the recess. Further, the table 11 is provided with the large presser 50 and the corner knife mechanism 20 on the downstream side in the cloth feeding direction of the sewing machine frame 12, and on the upstream side in the cloth feeding direction with a binder mechanism (not shown except for the binder 30a). Has been.

ミシンフレーム12は、主に、テーブル11に設置されるベッド部12aとそこから立設された縦胴部12bとその上部から水平に延設されたアーム部12cとから構成されている。
そして、ミシンフレーム12の下部には図示しないミシンモータが配設され、ベッド部12aの内部にはミシンモータから図示しない釜機構に回転駆動力を伝達する下軸がY軸方向に沿った状態で支持されており、アーム部12cの内部には針上下動機構の上下動駆動力をミシンモータから伝達する上軸がY軸方向に沿った状態で支持されている。
上軸と下軸にはそれぞれプーリが固定装備されると共に、ミシンフレーム12の縦胴部12b内を通されたタイミングベルトで連結されている。
The sewing machine frame 12 mainly includes a bed portion 12a installed on the table 11, a vertical trunk portion 12b erected therefrom, and an arm portion 12c extending horizontally from the upper portion thereof.
A sewing machine motor (not shown) is disposed below the sewing machine frame 12, and a lower shaft that transmits a rotational driving force from the sewing machine motor to a hook mechanism (not shown) is provided in the bed portion 12a along the Y-axis direction. An upper shaft that transmits the vertical movement driving force of the needle vertical movement mechanism from the sewing machine motor is supported in the arm portion 12c in a state along the Y-axis direction.
Pulleys are fixedly mounted on the upper shaft and the lower shaft, respectively, and are connected by a timing belt passed through the vertical body 12b of the sewing machine frame 12.

(針上下動機構)
針上下動機構は、二本針を構成する二つの縫い針14と、二本針のそれぞれの縫い針14を下端部に保持する二本の針棒と、各針棒をその長手方向に沿って滑動可能に支持する上下のメタル軸受けと、二本の針棒を同時に保持する針棒抱きと、ミシンモータにより回転駆動される上軸と、上軸の一端部に固定連結され回転運動を行う回転錘と、回転錘の回転中心から偏心した位置に一端部が連結されると共に他端部が針棒抱きに連結されたクランクロッドとを有する、周知の構成からなる。
(Needle vertical movement mechanism)
The needle up-and-down moving mechanism includes two sewing needles 14 constituting two needles, two needle bars that hold the respective sewing needles 14 at the lower end, and each needle bar along its longitudinal direction. The upper and lower metal bearings that are slidably supported, the needle bar holder that holds the two needle bars at the same time, the upper shaft that is rotationally driven by the sewing machine motor, and one end of the upper shaft are fixedly connected to perform rotational motion. It has a well-known configuration having a rotary weight and a crank rod having one end connected to a position eccentric from the rotation center of the rotary weight and the other end connected to a needle bar holder.

上軸が回転されると、回転錘も同様に回転を行い、クランクロッドの一端部は上軸を中心として円運動を行い、他端部では、一端部の円運動のZ軸方向に移動成分のみが針棒抱きに伝達されて各針棒が往復上下動を行うようになっている。   When the upper shaft is rotated, the rotating weight rotates in the same manner, one end of the crank rod performs a circular motion around the upper shaft, and the other end moves in the Z-axis direction of the circular motion of the one end. Only the needle bar is transmitted to each needle bar so that each needle bar moves up and down.

(センターメス機構)
センターメス機構は、直線状の切れ目を形成するセンターメス15と、センターメス15を下端部に備えると共にアーム部12c内で上下動可能に支持されたメス棒と、メス棒の上下動の駆動源となるメスモータと、メスモータからの回転駆動力を上下方向の往復の駆動力に替えて伝達する伝達機構とを備えている。
即ち、メスモータは、身頃生地M及び玉縁布Tの送り動作と共に回転駆動を行い、伝達機構によりセンターメス15を上下動させて、メス幅に応じた切れ目を繰り返し形成して直線状の切れ目を形成する。
(Center knife mechanism)
The center knife mechanism includes a center knife 15 that forms a straight cut, a knife that includes the center knife 15 at the lower end and is supported so as to move up and down within the arm 12c, and a drive source for the vertical movement of the knife. And a transmission mechanism that transmits the rotational driving force from the female motor in place of the reciprocating driving force in the vertical direction.
In other words, the knife motor is rotationally driven along with the feeding operation of the body cloth M and the ball edge cloth T, and the center knife 15 is moved up and down by the transmission mechanism to repeatedly form a cut corresponding to the knife width, thereby forming a linear cut. Form.

(バインダー機構)
バインダー機構は、断面形状が逆T字状であって玉縁布Tを巻き付けるようにセットして長手方向に沿って送り出すバインダー30a(30b)と、バインダー30a(30b)を昇降可能に支持する支持機構(図示略)とを有している。
上記バインダー30は、テーブル11の上面に対向する底板と当該底板の上面に垂直に立設された立板とから断面視で逆T字状の形状を成している。
このバインダーは、両玉縫い用のバインダー30aと片玉縫い用のバインダー30bと二種類あり、両玉縫い用のバインダー30aは立板31aを境界とする底板32aの両端部の幅が左右均一に形成され(図7(A)参照)、片玉縫い用のバインダー30bは立板31bを境界とする底板32bの一端部(玉縁が形成される方の端部)の幅が他方の端部の幅よりも広く形成されている(図7(B)参照)。
二本の縫い針14はY軸方向について幅Gだけ離れており、それぞれの縫い針14が各バインダー30a,30bの立板31a,31bを挟んで等距離となるG/2の距離で針落ちを行う。
そして、両玉縫い用のバインダー30aの底板32aは各縫い針14の針落ち位置からさらに外側にG/2よりわずかに短く張り出されている。
また、片玉縫い用のバインダー30bの底板32bの一端部は一方の縫い針14の針落ち位置からさらに外側にGよりわずかに短く張り出されており、底板32bの他端部は他方の縫い針14の針落ち位置からさらに外側にG/2よりわずかに短く張り出されている。
(Binder mechanism)
The binder mechanism has a reverse T-shaped cross section, and is set so as to wind the ball cloth T and supports the binder 30a (30b) to be sent out along the longitudinal direction and the binder 30a (30b) so as to be movable up and down. And a mechanism (not shown).
The binder 30 has an inverted T-shape when viewed in cross section from a bottom plate facing the top surface of the table 11 and a standing plate erected vertically to the top surface of the bottom plate.
There are two types of binders, a binder 30a for sewing both balls and a binder 30b for sewing one ball. The binder 30a for sewing both balls has a uniform width at both ends of the bottom plate 32a with the standing plate 31a as a boundary. The binder 30b for one-sided stitching is formed (see FIG. 7 (A)), and the width of one end of the bottom plate 32b (the end on which the bead is formed) is the other end. (See FIG. 7B).
The two sewing needles 14 are separated from each other by a width G in the Y-axis direction, and the sewing needles 14 fall at a distance of G / 2 which is an equal distance across the standing plates 31a and 31b of the binders 30a and 30b. I do.
The bottom plate 32a of the binder 30a for sewing both balls is projected slightly shorter than G / 2 further outward from the needle drop position of each sewing needle 14.
Also, one end of the bottom plate 32b of the binder 30b for one-sided stitching projects slightly shorter than G from the needle drop position of one sewing needle 14, and the other end of the bottom plate 32b is sewn on the other side. The needle 14 protrudes further from the needle drop position slightly shorter than G / 2.

支持機構は、バインダー30の昇降動作の駆動源となる図示しないエアシリンダと、当該エアシリンダを駆動する図示しない電磁弁と、エアシリンダの駆動力を上下方向の移動力に替えてバインダー30に付与する複数のリンク体とを備えている。
そして、縫製時には、バインダー機構は、エアシリンダによりバインダー30を下降させ、後述する大押さえ装置50の一対の大押さえ51との協働によりバインダー30の断面形状となるように玉縁布Tをバインダー30に巻き付けるように保持した状態で長手方向に玉縁布Tを送り出し、身頃生地Mへの縫着が行われる。
The support mechanism applies to the binder 30 an air cylinder (not shown) that is a driving source for the raising and lowering operation of the binder 30, an electromagnetic valve (not shown) that drives the air cylinder, and the driving force of the air cylinder is changed to a vertical moving force. A plurality of link bodies.
At the time of sewing, the binder mechanism lowers the binder 30 with an air cylinder, and binds the ball cloth T to the cross-sectional shape of the binder 30 in cooperation with a pair of large pressers 51 of the large presser device 50 described later. The rim cloth T is fed out in the longitudinal direction while being held so as to be wound around the body 30, and the body material M is sewn.

(大押さえ装置)
図2は大押さえ装置50の全体を示す斜視図である。
大押さえ装置50は、図2に示すように、上下動する二本の縫い針14の両側で身頃生地Mに重ねられた玉縁布Tを押圧保持する一対の大押さえ51と、各大押さえ51が保持する身頃生地M及び玉縁布Tを送り方向Fに沿って送るための図示しない送り駆動手段と、送り駆動手段に連結されて布送り方向Fに移動する土台部52と、土台部52に設けられ、各大押さえ51を個別に保持する一対の大押さえ保持機構70と、身頃生地Mの上に載置された玉縁布Tの両端部をバインダー30a(30b)の底板32a(32b)の上面に沿わせるように折り返す一対の折込板54と、各折込板54を支持すると共に当該各折込板54を互いの接離方向に駆動させる一対の折込板支持機構60とを備えている。
なお、Y軸方向両側に一対で設けられた大押さえ51,大押さえ保持機構70,折込板54及び折込板支持機構60の各構成は、いずれも大押さえ装置50全体のY軸方向中間位置におけるX−Z平面を基準として鏡面対称となる構造なので、大押さえ51及び大押さえ保持機構70の詳細については図2における手前側の構成についてのみ説明することとする。
(Large holding device)
FIG. 2 is a perspective view showing the entire large presser device 50.
As shown in FIG. 2, the large presser 50 includes a pair of large pressers 51 that press and hold the ball cloth T superimposed on the body cloth M on both sides of the two sewing needles 14 that move up and down, and each large presser. A feed driving means (not shown) for feeding the body fabric M and the ball cloth T held by the head 51 along the feed direction F, a base portion 52 connected to the feed drive means and moving in the cloth feed direction F, and a base portion 52, a pair of large presser holding mechanisms 70 that individually hold each of the large pressers 51, and both ends of the rim cloth T placed on the body fabric M are connected to the bottom plate 32a of the binder 30a (30b). And a pair of folding plate support mechanisms 60 that support each folding plate 54 and drive each folding plate 54 in the direction of contact with and separation from each other. Yes.
In addition, each structure of the large presser 51, the large presser holding mechanism 70, the folding plate 54, and the folding plate support mechanism 60 provided as a pair on both sides in the Y-axis direction is the intermediate position of the entire large pressing device 50 in the Y-axis direction. Since the structure is mirror-symmetric with respect to the XZ plane, the details of the large presser 51 and the large presser holding mechanism 70 will be described only for the configuration on the near side in FIG.

(大押さえ装置:土台部)
土台部52は、テーブル11上面に固定装備された図示しない支持機構によりX軸方向に沿って移動可能に支持されたベース板55と、ベース板55の下面側にY軸方向に沿って設けられた支軸56により揺動可能に軸支されて対向配置され,各大押さえ保持機構70を個別に保持する一対の保持アーム57(支持部)と、各保持アーム57を揺動させる一対の駆動手段としてのエアシリンダ58とを備えている。
(Large holding device: base part)
The base portion 52 is provided along the Y-axis direction on the lower surface side of the base plate 55 and supported on the lower surface side of the base plate 55 by a support mechanism (not shown) fixedly mounted on the upper surface of the table 11 and supported along the X-axis direction. A pair of holding arms 57 (support portions) that are pivotally supported by the support shafts 56 so as to be swingably arranged and hold each large press holding mechanism 70 individually, and a pair of drives that swing each holding arm 57. And an air cylinder 58 as means.

ベース板55は大押さえ装置50の送り駆動手段を除く全体の構成を支持しており、送り駆動手段によりX軸方向に移動位置決めが行われる。即ち、送り駆動手段は、ベース板55を介して、玉縁縫いの縫製作業に際し、布送り方向Fにおける身頃生地M及び玉縁布Tの移動位置決めを行うようになっている。   The base plate 55 supports the entire configuration excluding the feed driving means of the large pressing device 50, and is moved and positioned in the X-axis direction by the feed driving means. That is, the feed driving means is configured to move and position the body cloth M and the ball cloth T in the cloth feed direction F during the work of sewing the ball stitch through the base plate 55.

各支持アーム57は、その長手方向をX軸方向に沿わせた状態で、当該長手方向のほぼ中間位置において支軸56を貫通させた状態でベース板55に支持されている。
各支持アーム57の一端部側には、大押さえ保持機構70及び折込板支持機構60が設けられ、他端部側は、エアシリンダ58に係合している。
各エアシリンダ58は、各支持アーム57の他端部を上下方向に駆動し、一端部側の大押させ51の昇降を可能としている。即ち、各大押さえ51において身頃生地M及び玉縁布Tの保持を行わない状態での各大押さえ51の移動の際には、支持アーム57の他端部を下方に押圧して大押さえ51を上昇させ、身頃生地M及び玉縁布Tの保持を行った状態での各大押さえ51の移動の際には、支持アーム57の他端部を上方に引き寄せて大押さえを下降させ、布保持状態での移動を行わせる。
Each support arm 57 is supported by the base plate 55 in a state in which the support shaft 56 is penetrated at a substantially intermediate position in the longitudinal direction with the longitudinal direction thereof being along the X-axis direction.
A large holding mechanism 70 and a folding plate support mechanism 60 are provided on one end side of each support arm 57, and the other end side is engaged with an air cylinder 58.
Each air cylinder 58 drives the other end portion of each support arm 57 in the up-down direction so that the one end portion is pushed largely, thereby allowing the 51 to move up and down. That is, when each large presser 51 is moved in a state where the body cloth M and the ball edge fabric T are not held in each large presser 51, the other end portion of the support arm 57 is pressed downward to make the large presser 51. When the large pressers 51 are moved in a state where the body fabric M and the ball cloth T are held, the other end of the support arm 57 is pulled upward to lower the large presser, Move in the holding state.

(大押さえ装置:大押さえ及び折込板)
図3は大押さえ51と大押さえ保持機構70の分解斜視図である。
図3に示すように、大押さえ51は、長尺状の平板であり、その長手方向をX軸方向に沿わせた状態で大押さえ保持機構70に支持されている。
この大押さえ51には、その上面側には天板53が装備され、下面側には身頃生地Mに対する滑り止めと保護を兼ねたゴム板59が装備されている。そして、天板53と大押さえ51との間には隙間空間が形成されており、その中に未使用時の折込板54(図2参照)が格納されるようになっている。
(Large holding device: Large holding and folding plate)
FIG. 3 is an exploded perspective view of the large presser 51 and the large presser holding mechanism 70.
As shown in FIG. 3, the large presser 51 is a long flat plate, and is supported by the large press holding mechanism 70 in a state where its longitudinal direction is along the X-axis direction.
The large presser 51 is equipped with a top plate 53 on the upper surface side, and a rubber plate 59 serving as a slip stopper and protection for the body material M on the lower surface side. A gap space is formed between the top plate 53 and the large presser 51, and an unused folding plate 54 (see FIG. 2) is stored therein.

折込板54もまた長尺状の平板であり、その長手方向をX軸方向に沿わせた状態で折込板支持機構60に支持されている。
玉縁布Tは、各大押さえ51の天板53の上面に載置された状態でその上からバインダーに保持される。その結果、玉縁布Tの両端部は、各大押さえ51の先端部に押されて上方に折り曲げられた状態となる。
かかる状態の玉縁布Tに対して、折込板54は、その格納状態から、各大押さえ51の間に配置されたバインダー30a(30b)の立板31a(31b)に向かって移動を行うことで、玉縁布Tの端部を底板32a(32b)と立板31a(31b)に沿わせた状態に折り返すようになっている。
The folding plate 54 is also a long flat plate, and is supported by the folding plate support mechanism 60 in a state where its longitudinal direction is along the X-axis direction.
The ball edge fabric T is held by the binder from above in a state where it is placed on the top surface of the top plate 53 of each large presser 51. As a result, both end portions of the ball edge fabric T are pressed by the tip portions of the large pressers 51 and bent upward.
The folding plate 54 moves from the retracted state toward the standing plate 31a (31b) of the binder 30a (30b) disposed between the large pressers 51 with respect to the ball edge fabric T in such a state. Thus, the end portion of the ball edge fabric T is folded back in a state along the bottom plate 32a (32b) and the standing plate 31a (31b).

(大押さえ装置:折込板支持機構)
折込板支持機構60は、図2に示すように、折込板54の一端部を保持する移動体61と、移動体61を介して折込板54をY軸方向に沿って移動させる駆動手段としてのエアシリンダ62と、移動体61を介して折込板54を大押さえ51の内側格納位置側に引っ張る引っ張りバネ63とを備えている。
つまり、エアシリンダ62の非作動時には、引っ張りバネ63の張力により、折込板54は大押さえ51の内側への格納状態が維持され、エアシリンダ62が駆動すると、折込板54がバインダー30a(30b)の立板31a(31b)に向かって移動し、玉縁布Tの端部の折り返しが行われるようになっている。
(Large holding device: Folding plate support mechanism)
As shown in FIG. 2, the folding plate support mechanism 60 is a moving body 61 that holds one end of the folding plate 54, and driving means that moves the folding plate 54 along the Y-axis direction via the moving body 61. An air cylinder 62 and a tension spring 63 that pulls the folding plate 54 toward the inner storage position of the large presser 51 via the moving body 61 are provided.
That is, when the air cylinder 62 is not in operation, the folding plate 54 is maintained in the retracted state inside the large presser 51 by the tension of the tension spring 63, and when the air cylinder 62 is driven, the folding plate 54 is attached to the binder 30a (30b). It moves toward the standing plate 31a (31b), and the end portion of the ball cloth T is folded back.

(大押さえ装置:大押さえ保持機構)
大押さえ保持機構70は、図2及ぶ図3に示すように、土台部52の保持アーム57にその外側に向けて延出支持された第一のガイド軸71と、一端が第一のガイド軸71に沿って移動可能に支持され、他端が大押さえ51を保持する押さえ腕72と、押さえ腕72を第一のガイド軸71に沿って土台部52の保持アーム57に対して接近又は離隔移動させることにより身頃生地M及び玉縁布Tに対する片玉縫いに適する片玉縫い位置と両玉縫いに適する両玉縫い位置とに切り替える切替駆動手段としてのエアシリンダ73と、エアシリンダ73による大押さえ51の片玉縫い位置の調整を行う第一調整手段80と、エアシリンダ73による大押さえ51の両玉縫い位置の調整を行う第二調整手段90とを備えている。
(Large holding device: Large holding mechanism)
As shown in FIGS. 2 and 3, the large holding mechanism 70 includes a first guide shaft 71 that is extended and supported by the holding arm 57 of the base portion 52 toward the outside, and a first guide shaft that has one end. The holding arm 72 is supported so as to be movable along 71 and the other end holds the large presser 51, and the holding arm 72 approaches or separates from the holding arm 57 of the base portion 52 along the first guide shaft 71. An air cylinder 73 serving as a switching drive means for switching between a single ball stitching position suitable for one-piece stitching and a double-ball stitching position suitable for both-ball sewing by moving the body cloth M and the ball edge cloth T, and a large air cylinder 73 First adjustment means 80 for adjusting the one-piece stitching position of the presser 51 and second adjustment means 90 for adjusting the both-ball sewing position of the large presser 51 by the air cylinder 73 are provided.

上記第一のガイド軸71は、その長手方向をY軸方向に向けた状態でその基端部が保持アーム57の外側面上に固定支持されている。なお、土台部52の外側又は保持アーム57の外側とは、Y軸方向に沿った方向であって、対になるもう一方の各構成から離隔する方向をいうものとする。
また、この第一のガイド軸71は、押さえ腕72に設けられた貫通穴に挿通されており、押さえ腕72をY軸方向に沿って案内するガイドとなっている。
さらに、この第一のガイド軸71は、押さえ腕72を貫通してその先端部には、第一調整手段80が設けられている。
The base end of the first guide shaft 71 is fixedly supported on the outer surface of the holding arm 57 with the longitudinal direction thereof directed in the Y-axis direction. In addition, the outer side of the base part 52 or the outer side of the holding arm 57 is a direction along the Y-axis direction, and is a direction away from the other components of the pair.
The first guide shaft 71 is inserted into a through hole provided in the pressing arm 72 and serves as a guide for guiding the pressing arm 72 along the Y-axis direction.
Further, the first guide shaft 71 penetrates the pressing arm 72 and is provided with a first adjusting means 80 at the tip thereof.

押さえ腕72は、その長手方向がX軸方向に沿った状態で第一のガイド軸71を介して保持アーム57に支持されている。
かかる押さえ腕72は、その一端部に大押さえ51に固定連結される連結体74を備えている。この連結体74は、押さえ腕72の先端部においてY軸方向に沿った支軸により軸支されており、押さえ腕72に対して大押さえ51を幾分揺動可能としている。つまり、大押さえ51は保持アーム57の揺動により昇降を行うので、当該揺動における角度変化を生じても大押さえ51のゴム板59全体がテーブル11の上面の身頃生地Mに追従して接するようになっている。
また、押さえ腕72の他端部近傍にはY軸方向に貫通した貫通穴が形成され、その内部には滑り軸受メタル72aを介して第一のガイド軸71が挿通されており、当該押さえ腕72は、第一ガイド軸71(Y軸方向)に沿って滑動可能となっている。
なお、押さえ腕72と保持アーム57とは、引っ張りバネ75により連結されており、押さえ腕72は、保持アーム57側に近接する方向に常時張力を受けている。
The pressing arm 72 is supported by the holding arm 57 via the first guide shaft 71 in a state where the longitudinal direction thereof is along the X-axis direction.
The presser arm 72 includes a connecting body 74 fixedly connected to the large presser 51 at one end thereof. The connecting body 74 is pivotally supported by a support shaft along the Y-axis direction at the distal end portion of the pressing arm 72, and the large presser 51 can be swung somewhat with respect to the pressing arm 72. That is, since the large presser 51 moves up and down by the swinging of the holding arm 57, the entire rubber plate 59 of the large presser 51 follows the body cloth M on the upper surface of the table 11 even if an angle change occurs in the swinging. It is like that.
In addition, a through hole penetrating in the Y-axis direction is formed in the vicinity of the other end of the pressing arm 72, and a first guide shaft 71 is inserted through a sliding bearing metal 72a inside the pressing arm 72. 72 is slidable along the first guide shaft 71 (Y-axis direction).
Note that the pressing arm 72 and the holding arm 57 are connected by a tension spring 75, and the pressing arm 72 is constantly under tension in a direction approaching the holding arm 57 side.

さらに、押さえ腕72における上記貫通穴の上側には、エアシリンダ73が固定装備されている。このエアシリンダ73は、本体部が押さえ腕72に固定されており、突出移動を行うプランジャの先端部が保持アーム57に連結されている。また、エアシリンダ73のプランジャの動作方向がY軸方向に沿うように押さえ腕72に固定されている。
このため、エアシリンダ73のプランジャの後退動作時には押さえ腕72を保持アーム57に近接する方向に引き寄せ(図5参照)、プランジャの突出動作時には押さえ腕72を保持アーム57から離隔する方向に引き離すことができる(図6参照)。
Further, an air cylinder 73 is fixedly installed above the through hole in the pressing arm 72. The air cylinder 73 has a main body portion fixed to the pressing arm 72, and a distal end portion of a plunger that moves in a protruding manner is connected to the holding arm 57. The plunger of the air cylinder 73 is fixed to the holding arm 72 so that the operation direction of the plunger is along the Y-axis direction.
For this reason, when the plunger of the air cylinder 73 is retracted, the holding arm 72 is pulled in a direction close to the holding arm 57 (see FIG. 5), and when the plunger is protruding, the holding arm 72 is pulled away in a direction away from the holding arm 57. (See FIG. 6).

(大押さえ装置:大押さえ保持機構の第一調整手段)
第一調整手段80は、押さえ腕72よりも外側に突出した第一のガイド軸71の端部に形成された第一のネジ部81と、離隔移動を行う押さえ腕72に当接するように第一のガイド軸71に設けられると共に第一のネジ部81に螺合して回転操作により位置調整可能な第一の操作部材82とを備えている。
(Large holding device: First adjustment means of large holding mechanism)
The first adjusting means 80 is in contact with the first screw portion 81 formed at the end portion of the first guide shaft 71 protruding outward from the pressing arm 72 and the pressing arm 72 that performs the separation movement. A first operating member 82 is provided on one guide shaft 71 and is screwed into a first screw portion 81 and can be adjusted in position by a rotating operation.

第一のネジ部81は、第一のガイド軸71の先端の小径部の外周面に形成された雄ネジであり、押さえ腕72は、この第一のネジ部81よりも保持アーム57側において第一のガイド軸71に支持される。   The first screw portion 81 is a male screw formed on the outer peripheral surface of the small diameter portion at the tip of the first guide shaft 71, and the pressing arm 72 is closer to the holding arm 57 than the first screw portion 81. Supported by the first guide shaft 71.

図4(A)は第一の操作部材82の一部を切り欠いた側面図、図4(B)は正面図である。
この図4に示すように、第一の操作部材82は、第一のガイド軸71の先端部が挿通される筒状体であり、その一端部には第一のネジ部81と螺合する雌ネジ部が形成されている。つまり、第一の操作部材82の雌ネジ部を第一のネジ部81と螺合させつつ第一のガイド軸71を挿通させることにより、第一の操作部材82に回転操作を加えることで当該第一の操作部材82を第一のガイド軸71に沿って位置調整することができる。
4A is a side view in which a part of the first operation member 82 is cut out, and FIG. 4B is a front view.
As shown in FIG. 4, the first operation member 82 is a cylindrical body through which the tip end portion of the first guide shaft 71 is inserted, and one end portion thereof is screwed with the first screw portion 81. A female screw portion is formed. That is, by rotating the first operation member 82 by inserting the first guide shaft 71 while screwing the female screw portion of the first operation member 82 with the first screw portion 81, The position of the first operation member 82 can be adjusted along the first guide shaft 71.

また、この第一の操作部材82と第一のガイド軸71の先端部との間には、第一の操作部材82を所定回転角度ごとに回転操作させるラチェット機構83が設けられている。
このラチェット機構83は、第一の操作部材82の円周方向について均等な角度間隔である90度ごとに軸方向に沿って形成された四本の溝部84と、第一のガイド軸71に設けられた孔部85内に格納された二つのボール86と、各ボール86を第一の操作部材82の内周面に向かって押圧する押圧バネ87とを備えている。
上記各溝部84は、第一のガイド軸71の軸方向に沿って形成され、第一の操作部材82の内周面から外周面にかけて貫通されている。
孔部85は、第一のガイド軸71に形成された第一のネジ部81の近傍においてガイド軸71の円周の直径方向に沿って貫通形成された円孔である。かかる孔部85はボール86が内部で移動可能な内径に設定されている
二つのボール86は、押圧バネ87を挟んだ状態で孔部85内に格納され、押圧バネ87の自然長は第一のガイド軸71の直径よりも長く設定されている。従って、第一の操作部材82が第一のガイド軸71の先端部に装着された状態において、各ボール86は、第一の操作部材82の内周面を絶えず押圧する。
A ratchet mechanism 83 is provided between the first operating member 82 and the distal end portion of the first guide shaft 71 to rotate the first operating member 82 at a predetermined rotation angle.
The ratchet mechanism 83 is provided on the first guide shaft 71 and the four groove portions 84 formed along the axial direction every 90 degrees that are equal angular intervals in the circumferential direction of the first operation member 82. Two balls 86 stored in the hole 85 formed, and a pressing spring 87 for pressing each ball 86 toward the inner peripheral surface of the first operation member 82 are provided.
Each of the groove portions 84 is formed along the axial direction of the first guide shaft 71 and penetrates from the inner peripheral surface to the outer peripheral surface of the first operation member 82.
The hole 85 is a circular hole formed so as to penetrate along the diameter direction of the circumference of the guide shaft 71 in the vicinity of the first screw portion 81 formed in the first guide shaft 71. The hole 85 is set to have an inner diameter within which the ball 86 can move. The two balls 86 are stored in the hole 85 with the pressing spring 87 interposed therebetween, and the natural length of the pressing spring 87 is first. It is set longer than the diameter of the guide shaft 71. Accordingly, in a state where the first operation member 82 is mounted on the tip portion of the first guide shaft 71, each ball 86 constantly presses the inner peripheral surface of the first operation member 82.

かかる構成により、ラチェット機構83は、第一の操作部材82に回転操作が加えられると、90度回転されることに各ボール86が溝部84に嵌り込むので、作業者は、その都度90°回転したことを認識することができる。
また、第一のネジ部81のネジピッチが既知であればラチェット機構83による単位回転角度ごとに四分の一ピッチ分の位置調節が行われたことが容易に認識可能である。
With this configuration, when the rotation operation is applied to the first operation member 82, the ratchet mechanism 83 fits into the groove portion 84 when the ball 86 is rotated 90 degrees, so that the operator rotates 90 degrees each time. I can recognize that.
Further, if the screw pitch of the first screw portion 81 is known, it can be easily recognized that the position adjustment for a quarter pitch is performed for each unit rotation angle by the ratchet mechanism 83.

なお、溝部84の角度間隔と本数は特に限定されるものではなく、より多くとも少なくとも良いが、一周360度を均一に分割できる角度単位とすることが望ましい。
また、第一の操作部材82の位置調節量を示すゲージを第一のガイド軸71の第一のネジ部近傍の外周面に形成しても良い。
Note that the angular interval and the number of the groove portions 84 are not particularly limited, and at least may be at least, but it is desirable to set the angle unit that can divide 360 degrees uniformly.
Further, a gauge indicating the position adjustment amount of the first operation member 82 may be formed on the outer peripheral surface of the first guide shaft 71 in the vicinity of the first screw portion.

第一調整手段80は、図5に示すように、押さえ腕72がエアシリンダ73により保持アーム57から離隔方向に移動する場合に、押さえ腕72が第一の操作部材82に当接する位置でそれ以上の移動を規制するため、第一の操作部材82の回転操作により適宜位置調整することにより大押さえ51の外側移動における停止位置を任意に調整することができる。
なお、この第一の調整手段80による停止位置は、大押さえ51の片玉縫いを行うための位置決め位置に対応している。
As shown in FIG. 5, the first adjusting means 80 moves the pressing arm 72 at a position where the pressing arm 72 contacts the first operating member 82 when the pressing arm 72 is moved away from the holding arm 57 by the air cylinder 73. In order to restrict the above movement, the stop position in the outer movement of the large presser 51 can be arbitrarily adjusted by appropriately adjusting the position by rotating the first operating member 82.
The stop position by the first adjusting means 80 corresponds to a positioning position for performing one-piece stitching of the large presser 51.

(大押さえ装置:大押さえ保持機構の第二調整手段)
第二調整手段90は、押さえ腕72にY軸方向に向けて延出支持された第二のガイド軸91と、第二のガイド軸91の先端部に形成された第二のネジ部92と、第二のネジ部92に螺合して回転操作により位置調整可能な第二の操作部材93と、押さえ腕72の離隔移動側(外側)に位置し、接近移動(内側移動)を行う押さえ腕72と共に移動する第二の操作部材93に当接するように土台部52の保持アーム57に設けられた突き当て部材としての突き当て板94とを備えている。
(Large holding device: Second adjustment means of large holding mechanism)
The second adjustment means 90 includes a second guide shaft 91 that is extended and supported by the pressing arm 72 in the Y-axis direction, and a second screw portion 92 formed at the tip of the second guide shaft 91. A second operating member 93 that is screwed into the second screw portion 92 and can be adjusted by a rotating operation, and a presser that is positioned on the separation movement side (outer side) of the pressing arm 72 and that moves closer (inward movement). An abutting plate 94 as an abutting member provided on the holding arm 57 of the base portion 52 so as to abut on the second operating member 93 that moves together with the arm 72 is provided.

第二のガイド軸91は、押さえ腕72の他端部においてY軸方向に沿った状態で抱き締めにより固定保持されている。そして、押さえ腕72が第一のガイド軸71に挿通支持された状態において、第二のガイド軸91の一端部は保持アーム57の貫通穴57aに挿通可能な長さに設定されている。これにより、押さえ腕72が第一のガイド軸71を中心に揺動することを防止している。
さらに、第二のガイド軸91の他端部には、第二のネジ部92が形成されると共に、これを介して第二の操作部材93が装着されている。
なお、第二のガイド軸91と第二の操作部材93との間には、第一のガイド軸71と第二の操作部材82との間に設けられたラチェット機構と同じものが形成されており、且つ、第二の操作部材93は第一の操作部材82と同一の構造を有するのでこれらの説明は省略する。
The second guide shaft 91 is fixedly held by hugging in the state along the Y-axis direction at the other end of the pressing arm 72. In a state where the pressing arm 72 is inserted and supported by the first guide shaft 71, one end portion of the second guide shaft 91 is set to a length that can be inserted into the through hole 57 a of the holding arm 57. This prevents the pressing arm 72 from swinging around the first guide shaft 71.
Furthermore, a second screw portion 92 is formed at the other end portion of the second guide shaft 91, and a second operation member 93 is mounted via this.
The same thing as the ratchet mechanism provided between the first guide shaft 71 and the second operation member 82 is formed between the second guide shaft 91 and the second operation member 93. In addition, since the second operation member 93 has the same structure as the first operation member 82, description thereof will be omitted.

突き当て板94は、保持アーム57の外側面から立設された二本の保持軸95,95により、押さえ腕72と第二の操作部材93との間の定位置で固定支持されている。この突き当て板94には、第二のガイド軸91の他端部側が挿通される貫通穴が形成されており、当該貫通穴は第二の操作部材93よりも小径に設定されている。   The abutting plate 94 is fixedly supported at a fixed position between the pressing arm 72 and the second operation member 93 by two holding shafts 95, 95 erected from the outer surface of the holding arm 57. The abutting plate 94 is formed with a through hole through which the other end side of the second guide shaft 91 is inserted, and the through hole is set to have a smaller diameter than the second operation member 93.

第二調整手段90は、図6に示すように、押さえ腕72がエアシリンダ73により保持アーム57への近接方向に移動する場合に、押さえ腕72と共に移動を行う第二の操作部材93が突き当て板94に当接する位置でそれ以上の移動を規制するため、第二の操作部材93の回転操作により適宜位置調整することにより大押さえ51の内側(近接)移動における停止位置を任意に調整することができる。
なお、この第二の調整手段90による停止位置は、大押さえ51の両玉縫いを行うための位置決め位置に対応している。
As shown in FIG. 6, the second adjustment means 90 is configured such that when the pressing arm 72 is moved in the proximity direction to the holding arm 57 by the air cylinder 73, the second operating member 93 that moves together with the pressing arm 72 projects. In order to restrict further movement at the position where it abuts against the contact plate 94, the stop position in the inside (proximity) movement of the large presser 51 is arbitrarily adjusted by adjusting the position appropriately by rotating the second operating member 93. be able to.
The stop position by the second adjusting means 90 corresponds to the positioning position for performing the double stitching of the large presser 51.

(コーナーメス機構)
コーナーメス機構20は、テーブル11の下方であって大押さえ装置50による大押さえ51の通過経路に配置されており、大押さえ装置50により一対のメス21,21からなるコーナーメスの作業位置に搬送された身頃生地M及び玉縁布Tを下方からコーナーメス21を突き通すことで直線状の切れ目の両端となる位置に略V字状の切れ目Vを形成する。
即ち、コーナーメス機構20は、コーナーメス21を上下動させるエアシリンダと、メス21をX軸方向に沿って移動位置決めする駆動モータとを備えている。
(Corner knife mechanism)
The corner knife mechanism 20 is disposed below the table 11 and in the passage path of the large presser 51 by the large presser device 50, and is conveyed to the work position of the corner knife composed of the pair of scalpels 21 and 21 by the large presser device 50. By cutting the body cloth M and the ball cloth T through the corner knife 21 from below, substantially V-shaped cuts V are formed at positions corresponding to both ends of the straight cut.
That is, the corner knife mechanism 20 includes an air cylinder that moves the corner knife 21 up and down, and a drive motor that moves and positions the knife 21 along the X-axis direction.

(玉縁縫いミシンの縫製動作)
上記構成からなる玉縁縫いミシン10の縫製動作を図1及び図5乃至図7に基づいて説明する。図5及び図7(A)は両玉縫いにおける動作説明図であり、図6,図7(B)及び図7(C)は片玉縫いにおける動作説明図である。
まず、両玉縫いを行う場合にはバインダー30aが使用され、片玉縫いを行う場合にはバインダー30bが使用される。
(Sewing operation of the edge stitch sewing machine)
A sewing operation of the edge stitch sewing machine 10 having the above-described configuration will be described with reference to FIGS. 1 and 5 to 7. FIG. 5 and FIG. 7A are operation explanatory diagrams in double ball stitching, and FIG. 6, FIG. 7B and FIG. 7C are operation explanatory diagrams in single ball stitching.
First, the binder 30a is used when performing both-ball stitching, and the binder 30b is used when performing one-ball stitching.

また、両玉縫いを行う場合には、両方の大押さえ保持機構70のエアシリンダ73が収縮方向に駆動され、各大押さえ51を近接方向に移動させる。これにより、第二の操作部材93が突き当て板94に当接し、各大押さえ51は、両玉縫いに適した位置、つまり、各大押さえ51の間隔が2Gとなる位置(各縫い針14からG/2だけ外側となる位置)に位置決めされる。   Further, when performing both-ball stitching, the air cylinders 73 of both large presser holding mechanisms 70 are driven in the contraction direction, and the respective large pressers 51 are moved in the proximity direction. As a result, the second operating member 93 comes into contact with the abutment plate 94, and each large presser 51 is in a position suitable for both-ball sewing, that is, a position where each large presser 51 is spaced by 2G (each sewing needle 14 To a position that is on the outside by G / 2).

一方、片玉縫いを行う場合には、一方の大押さえ保持機構70(例えば図2における手前側の大押さえ保持機構70)のエアシリンダ73のみが突出方向に駆動され、各大押さえ51が離隔するように、一方の大押さえ51を離隔方向に移動させる。これにより、図6に示すように、押さえ腕72が第一の操作部材82に当接し、一方の大押さえ51は、片玉縫いに適した位置、つまり、各大押さえ51の間隔が2.5Gとなる位置(近い方の縫い針14からGだけ外側となる位置)に位置決めされる(図7(B))。
また、玉縁布Tが厚みがある場合には、バインダー30bの端部と大押さえ51との間の距離dをより大きく設定する必要があるため、第一の操作部材82をより第一のガイド軸71の先端側に移動調整する。これにより、バインダー30bの端部と大押さえ51との間の距離dをより大きくした位置に大押さえ51を位置決めすることができる(図7(C))。なお、この場合、位置調整された大押さえ51と縫い針14の距離はdの調整分だけGよりも若干大きくなる。
On the other hand, when one-piece stitching is performed, only the air cylinder 73 of one large presser holding mechanism 70 (for example, the front side large presser hold mechanism 70 in FIG. 2) is driven in the protruding direction, and each large presser 51 is separated. Then, one large presser 51 is moved in the separation direction. As a result, as shown in FIG. 6, the pressing arm 72 abuts on the first operation member 82, and the one large pressing member 51 has a position suitable for one-piece sewing, that is, the interval between the large pressing members 51 is 2.5 G. Is positioned at a position (a position that is G outward from the closer sewing needle 14) (FIG. 7B).
Further, when the ball edge fabric T is thick, it is necessary to set the distance d between the end portion of the binder 30b and the large presser 51 to be larger. Move and adjust toward the tip side of the guide shaft 71. Accordingly, the large presser 51 can be positioned at a position where the distance d between the end portion of the binder 30b and the large presser 51 is further increased (FIG. 7C). In this case, the distance between the position-adjusted large presser 51 and the sewing needle 14 is slightly larger than G by the adjustment of d.

上記各状態で、身頃生地Mがテーブル11の上面の所定位置に載置され、大押さえ装置70は、各エアシリンダ58により各大押さえ51を上昇させた状態で身頃生地Mの保持位置まで送り駆動手段により搬送する。
そして、大押さえ51を下降させ、両玉縫いの場合には、各大押さえ51の天板53上に玉縁布Tが載置される。また、片玉縫いの場合には、離隔された大押さえ51の天板53上にのみ玉縁布Tが載置される。
In each of the above states, the body cloth M is placed at a predetermined position on the upper surface of the table 11, and the large pressing device 70 feeds the body cloth M to the holding position of the body cloth M while the large pressers 51 are raised by the air cylinders 58. Transported by driving means.
Then, the large presser 51 is lowered, and in the case of both ball stitches, the ball cloth T is placed on the top plate 53 of each large presser 51. Further, in the case of one-piece sewing, the ball edge cloth T is placed only on the top plate 53 of the separated large presser 51.

さらに、その後、バインダー30a(又は30b)が各大押さえ51の間に向かって下降され、玉縁布Tを保持する。この後、片玉縫いの場合には、玉縁布Tが載置されなかった大押さえ51の下側に向合わせ布Kがセットされる。
そして、各折込板支持機構60は、エアシリンダ62の駆動により折込板54を前進させ、玉縁布T又は向合わせ布Kの端部を折り返す。
Further, thereafter, the binder 30a (or 30b) is lowered toward each large presser 51 to hold the ball cloth T. Thereafter, in the case of one-piece stitching, the facing cloth K is set on the lower side of the large presser 51 on which the ball edge cloth T is not placed.
Then, each folding plate support mechanism 60 advances the folding plate 54 by driving the air cylinder 62 and folds the edge portion of the ball cloth T or the facing fabric K.

その後は、大押さえ装置50の送り駆動手段が駆動しつつ、針上下動機構及びセンターメス機構が所定の動作を行い、直線状の切れ目を形成すると共にその両側で縫いが行われる。
その後、コーナーメス機構20により直線状の切れ目の両端部にはV字状の切れ目が形成される。
これにより、玉縁布Tを身頃生地Mの裏側に折り返すことにより、両玉縫い又は片玉縫いが完了する。
Thereafter, while the feed driving means of the large presser device 50 is driven, the needle up-and-down moving mechanism and the center knife mechanism perform predetermined operations to form a linear cut, and sewing is performed on both sides thereof.
Thereafter, the corner knife mechanism 20 forms V-shaped cuts at both ends of the straight cut.
As a result, the ball edge fabric T is folded back to the back side of the body cloth M, whereby both ball stitching or one ball stitching is completed.

(実施形態の効果)
上記玉縁縫いミシン10の大押さえ装置50にあっては、第一の操作部材82と第二の操作部材93とが、それぞれ第一のネジ部81と第二のネジ部92とに螺合しているので、それぞれを回転操作するという非常に簡易な操作だけで容易に両玉縫いと片玉縫いにおける大押さえ51の位置調節が可能となる。
そして、その調節作業は工具を不要とすることは勿論である。
また、第一及び第二の操作部材82,93は、土台部52の保持アーム57に対して外側に向けて延出支持された第一及び第二のガイド軸71、81の先端部に設けられているので、いずれも押さえ腕72よりも外側に位置することで操作を行いやすい配置となり、操作性の向上を図ることが可能となる。
(Effect of embodiment)
In the large presser 50 of the above-described bead stitch sewing machine 10, the first operation member 82 and the second operation member 93 are screwed into the first screw portion 81 and the second screw portion 92, respectively. Therefore, it is possible to easily adjust the position of the large presser 51 in both ball stitching and one ball stitching by only a very simple operation of rotating each of them.
Of course, the adjustment work does not require a tool.
The first and second operation members 82 and 93 are provided at the distal end portions of the first and second guide shafts 71 and 81 that are extended and supported outward with respect to the holding arm 57 of the base portion 52. Therefore, it is possible to improve the operability by arranging them so that they can be easily operated by being positioned outside the pressing arm 72.

また、第一の操作部材82又は第二の操作部材93と第一及び第二のガイド軸71、81との間には、回転操作を行う際に、所定回転角度単位ので回転操作が可能とするラチェット機構を設けたので、両玉縫いと片玉縫いの位置決め調整作業において何回の回転角度単位での回転操作を加えたかを数えることで、位置調整量の目安となり、当該位置調整量を容易に認識することができるので、正確に任意の位置に位置調整することが可能となる。   Further, when the rotation operation is performed between the first operation member 82 or the second operation member 93 and the first and second guide shafts 71 and 81, the rotation operation can be performed in units of a predetermined rotation angle. Since a ratchet mechanism is provided, counting the number of rotations performed in units of rotation angle in both ball stitching and single-ball stitching adjustment operations can be used as a guideline for the position adjustment amount. Since it can be easily recognized, the position can be accurately adjusted to an arbitrary position.

(その他)
なお、大押さえ装置50の両方の大押さえ保持機構70に、第一及び第二の調整手段80,90を設けたが、これらの構成は片方の大押さえ保持機構70のみに設けても良い。
(Other)
Although the first and second adjusting means 80 and 90 are provided in both of the large presser holding mechanisms 70 of the large presser device 50, these configurations may be provided only in one of the large presser holding mechanisms 70.

発明の実施形態たる玉縁縫いミシンの全体の概略構成を示す斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an overall schematic configuration of a ball stitch sewing machine as an embodiment of the invention. 図1に開示された大押さえ装置の全体を示す斜視図である。It is a perspective view which shows the whole large pressing device disclosed by FIG. 大押さえと大押さえ保持機構の分解斜視図である。It is a disassembled perspective view of a large hold and a large hold holding mechanism. 図4(A)は第一の操作部材の一部を切り欠いた側面図、図4(B)は図4(A)のZ−Z線に沿った断面図である。4A is a side view in which a part of the first operation member is cut out, and FIG. 4B is a cross-sectional view taken along the line ZZ in FIG. 4A. 両玉縫いにおける大押さえ保持機構の動作説明図である。It is operation | movement explanatory drawing of the large press holding | maintenance mechanism in both ball stitches. 片玉縫いにおける大押さえ保持機構の動作説明図である。It is operation | movement explanatory drawing of the large press holding | maintenance mechanism in one ball stitch. 図7(A)は両玉縫いにおける針板上の動作説明図、図7(B)は片玉縫いにおける針板上の動作説明図、図7(C)は片玉縫いにおける大押さえの位置調節を示す動作説明図である。FIG. 7A is a diagram for explaining the operation on the needle plate in the double stitching, FIG. 7B is a diagram for explaining the operation on the needle plate in the single ball stitching, and FIG. 7C is the position of the large presser in the single ball stitching. It is operation | movement explanatory drawing which shows adjustment. 図8(A)は従来例における両玉縫いの動作説明図、図8(B)は両玉縫い後の布地の状態を示す説明図である。FIG. 8 (A) is an explanatory diagram of the operation of the double stitching in the conventional example, and FIG. 8 (B) is an explanatory diagram showing the state of the fabric after the double stitching. 図9(A)は従来例における片玉縫いの動作説明図、図9(B)は片玉縫い後の布地の状態を示す説明図である。FIG. 9A is an explanatory diagram of the operation of one-piece stitching in a conventional example, and FIG. 9B is an explanatory diagram showing the state of the fabric after one-piece stitching.

符号の説明Explanation of symbols

10 玉縁縫いミシン
14 縫い針(二本針)
50 大押さえ装置
51 大押さえ
52 土台部
70 大押さえ保持機構
71 第一のガイド軸
72 押さえ腕
73 エアシリンダ(切替駆動手段)
80 第一調整手段
81 第一のネジ部
82 第一の操作部材
83 ラチェット機構
90 第二調整手段
91 第二のガイド軸
92 第二のネジ部
93 第二の操作部材
94 突き当て板(突き当て部材)
M 身頃生地
T 玉縁布
B 玉縁
K 向合わせ布
10 Sewing machine 14 Sewing needle (2 needles)
50 large holding device 51 large holding 52 base portion 70 large holding mechanism 71 first guide shaft 72 holding arm 73 air cylinder (switching drive means)
80 First adjustment means 81 First screw portion 82 First operation member 83 Ratchet mechanism 90 Second adjustment means 91 Second guide shaft 92 Second screw portion 93 Second operation member 94 Element)
M Body fabric T Ball edge B Ball edge K Face-to-face cloth

Claims (2)

上下動する二本針の両側で身頃生地に重ねられた玉縁布を押圧保持する一対の大押さえと、
対向配置される一対の支持部を有し、送り駆動手段に連結されて布送り方向に移動する土台部と、
前記各支持部に支持され、前記各大押さえを個別に保持する一対の大押さえ保持機構とを備え、
前記各大押さえ保持機構は、前記対向配置される各支持部にその外側に向けて延出支持された第一のガイド軸と、一端が前記第一のガイド軸に沿って移動可能に支持され、他端が前記大押さえを保持する押さえ腕とを備えてなる玉縁縫いミシンの大押さえ装置において、
少なくとも一方の前記大押さえ保持機構は、
前記押さえ腕を前記第一のガイド軸に沿って前記支持部に対して接近又は離隔移動させることにより、前記身頃生地及び玉縁布に対する片玉縫いに適する片玉縫い位置と両玉縫いに適する両玉縫い位置とに切り替える切替駆動手段と、
前記切替駆動手段による前記大押さえの片玉縫い位置の調整を行う第一調整手段と、
前記切替駆動手段による前記大押さえの両玉縫い位置の調整を行う第二調整手段とを備え、
前記第一調整手段は、
前記押さえ腕よりも外側に突出した前記第一のガイド軸の端部に形成された第一のネジ部と、
前記離隔移動を行う押さえ腕に当接するように前記第一のガイド軸に設けられると共に前記第一のネジ部に螺合して回転操作により位置調整可能な第一の操作部材とを有し、
前記第二調整手段は、
前記押さえ腕に前記第一のガイド軸と同じ方向に向けて延出支持された第二のガイド軸と、
前記第二のガイド軸の端部に形成された第二のネジ部と、
前記第二のネジ部に螺合して回転操作により位置調整可能な第二の操作部材と、
前記押さえ腕の離隔移動側に位置し、前記接近移動を行う押さえ腕と共に移動する前記第二の操作部材に当接するように前記支持部に設けられた突き当て部材とを備えることを特徴とする玉縁縫いミシンの大押さえ装置。
A pair of large pressers that press and hold the ball-bound fabric that is layered on the body fabric on both sides of the two needles that move up and down,
A base part that has a pair of support parts arranged opposite to each other and is connected to the feed driving means and moves in the cloth feed direction;
A pair of large press holding mechanisms that are supported by the respective support portions and hold each of the large presses individually;
Each of the large presser holding mechanisms is supported by the respective support portions arranged to face each other so as to extend outwardly, and one end is supported so as to be movable along the first guide shaft. In the large presser device of the edge stitch sewing machine, the other end of which is provided with a presser arm that holds the large presser,
At least one of the large holding mechanisms is
By moving the pressing arm toward or away from the support portion along the first guide shaft, it is suitable for a one-piece stitching position and a two-piece stitching suitable for one-piece stitching on the body cloth and the ball edge cloth. Switching drive means for switching between the two ball stitching positions;
First adjustment means for adjusting the one-side stitching position of the large press by the switching drive means;
Second adjustment means for adjusting the position of both large stitches of the large press by the switching drive means,
The first adjusting means includes
A first screw portion formed at an end portion of the first guide shaft protruding outward from the pressing arm;
A first operating member that is provided on the first guide shaft so as to come into contact with the pressing arm that performs the separation movement, and is screwed into the first screw portion and can be adjusted in position by a rotating operation;
The second adjusting means is
A second guide shaft that is extended and supported by the pressing arm in the same direction as the first guide shaft;
A second threaded portion formed at the end of the second guide shaft;
A second operating member that is screwed into the second threaded portion and can be adjusted in position by a rotating operation;
And an abutting member provided on the support portion so as to be in contact with the second operation member that moves together with the pressing arm that moves close to the pressing arm. Large presser device for sewing machine.
前記第一の操作部材及び第二の操作部材には、所定回転角度ごとに回転操作させることを特徴とする請求項1記載の玉縁縫いミシンの大押さえ装置。   2. The large presser device for a hem-sewn sewing machine according to claim 1, wherein the first operation member and the second operation member are rotated at predetermined rotation angles.
JP2005290246A 2005-10-03 2005-10-03 Large presser for sewing machine Active JP4769534B2 (en)

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DE102006046362.5A DE102006046362B4 (en) 2005-10-03 2006-09-29 Clamp foot device for a binding sewing machine
CN2006101414599A CN1944751B (en) 2005-10-03 2006-09-29 Clamping foot device for edge sewing machine
CZ2006-619A CZ306110B6 (en) 2005-10-03 2006-10-02 Clamping foot device for hemming sewing machine

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DE102006046362B4 (en) 2021-12-09
DE102006046362A1 (en) 2007-04-05
CN1944751B (en) 2012-03-21
CZ2006619A3 (en) 2007-09-26

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