JPH08191968A - Fabric feeding device for sewing machine - Google Patents

Abstract

PURPOSE: To sew the same stitch and to facilitate the decision of the track of a cam groove by swinging a lateral feeding arm along a face almost parallel with a fabric feeding operation plane while being engaged with the cam groove of a fabric feeding cam, and interposing a lateral feeding connection link between the lateral feeding arm and an XY table. CONSTITUTION: A lateral feeding mechanism is constituted by integrating a fabric feeding table 10 with the XY table so as to move it in the longitudinal feeding direction and by interposing a lateral feeding connection link 5 between a lateral feeding arm 4, which is swung in the lateral feeding direction while being engaged with a cam groove 11 of a fabric feeding cam 3, and the XY table and especially since the fabric feeding table 10 is put on the XY table, the fabric feeding table 10 can be moved in the lateral feeding direction without generating any motion in the rotating direction. Besides, since the horizontal swinging motion generated at the cam groove 11 of the fabric feeding cam 3 is connected by the lateral feeding connection link 5 so as to be directly transmitted to the XY table, the number of parts is reduced and further, the generation of a moment caused by the difference of heights between the cam groove 11 and the fabric feeding table 10 can be suppressed low as much as possible.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、工業用ミシン、特に、
サイクルミシン等のミシンの布送り装置に関するもので
ある。BACKGROUND OF THE INVENTION The present invention relates to an industrial sewing machine, especially
The present invention relates to a cloth feeding device for a sewing machine such as a cycle sewing machine.

【０００２】[0002]

【従来の技術】サイクルミシン等のミシンにおいて、布
を押えて前後左右方向（ＸＹ方向）へ移動することによ
り所望の縫目を形成するための布送り装置を備えること
は、例えば、特公昭５３−２７６６０号公報、特公昭６
０−２２９５５号公報等により公知である。先ず、特公
昭５３−２７６６０号公報に開示される内容はミシンの
布送り機構に関するもので、カム体の両面にカム溝を設
けて、Ｌ形の揺動腕および揺動レバーを相対的に球面体
を有する連結腕により連結することで、縫目形状により
所望の正確さが得られるようにしたことを特徴としたも
のである。また、特公昭６０−２２９５５号公報に開示
される内容はサイクルミシンの布送り機構に関するもの
で、カムの側面および外周面にカム溝を設けて、そのそ
れぞれのカム溝に垂直あるいは水平状態に設けた揺動腕
と連結レバーとによって、スライドシャフトに固定され
た送り台を前後左右に移動させるようにしたものであ
る。2. Description of the Related Art A sewing machine such as a cycle sewing machine is provided with a cloth feeding device for forming desired stitches by pressing cloth and moving it in the front-rear and left-right directions (XY directions). -27660, Japanese Patent Publication No. 6
It is known from, for example, 0-22955. First, the contents disclosed in JP-B-53-27660 relate to a cloth feed mechanism of a sewing machine, in which cam grooves are provided on both surfaces of a cam body so that an L-shaped swing arm and a swing lever are relatively spherical. By connecting with a connecting arm having a body, a desired accuracy can be obtained depending on a stitch shape. Further, the content disclosed in Japanese Patent Publication No. Sho 60-22955 relates to a cloth feed mechanism of a cycle sewing machine, in which a cam groove is provided on a side surface and an outer peripheral surface of a cam, and the cam groove is provided vertically or horizontally. With the swing arm and the connecting lever, the feed table fixed to the slide shaft is moved back and forth and left and right.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、以上の
ような従来の布送り装置では、次に述べるような問題が
ある。即ち、前記特公昭５３−２７６６０号公報に開示
される機構は、特に、その横送りの機構において、当該
公報図面（第３図等）の符号を付して説明すると、ロッ
ド５２と駆動体５６を球間接連結して、所望の縫目を形
成できるようにしてあるが、例えば、ベルトループ付け
のように、２本針のミシンで２カ所に同じ縫目を形成さ
せる場合、布送り台３８は一固定軸線を中心にベッド５
平面上に沿って完全な直線揺動ではなく扇形揺動するの
で、固定軸線から遠い方の縫目が近い方の縫目より横方
向に長くなり、同じ縫目が形成できないといった問題が
あった。また、機構上、間に球面体４０、ロッド１３を
介し布送り台３８を動かしているため、より直線的な送
り運動にするためのカム溝の軌跡を決定するのが複雑で
あるという問題があった。However, the conventional cloth feeding apparatus as described above has the following problems. That is, the mechanism disclosed in the above Japanese Patent Publication No. 53-27660, particularly the transverse feed mechanism, will be described with reference to the drawings (FIG. 3 etc.) of the publication. A desired stitch can be formed by ball-indirectly connecting the fabrics. However, when the same stitch is formed at two places by a two-needle sewing machine such as a belt loop attachment, the cloth feed table 38 Bed 5 centered on one fixed axis
There is a problem that the stitches farther from the fixed axis are laterally longer than the stitches closer to the fixed axis because they do not swing completely straight along the plane, but the same stitch cannot be formed. . In addition, since the cloth feed table 38 is moved between the spherical body 40 and the rod 13 in terms of the mechanism, it is complicated to determine the locus of the cam groove for a more linear feed movement. there were.

【０００４】次に、前記特公昭６０−２２９５５号公報
に開示される機構は、その横送りの機構に関して、当該
公報図面（第４図等）の符号を付して説明すると、カム
１５の外周面にカム溝１７を設けて、揺動レバー４５と
リンク５５を介し送り台４０を完全な直線運動に変換し
ているが、縦送りに関しては、カム１５の側面に設けた
カム溝１６から揺動レバー２０、連結棒２６を介し揺動
腕３０，３５を揺動させている。この揺動腕３０，３５
には送り台４０に取り付けられたスライドシャフト３７
が貫通しており、縦送り方向（前後方向：Ｙ方向）の動
きを可能にしている。しかし、厳密には、揺動腕３０，
３５は軸３２を中心に扇形揺動している。ここで、揺動
腕３０，３５の長さや縦送り量（最大３ｍｍ）を考慮す
れば、確かにベッド水平上面方向への変位量は微少であ
るが、ミシンの回転数が高いと、振動、騒音が大きくな
り、それらに多大な影響をもたらすという問題があっ
た。Next, regarding the mechanism disclosed in Japanese Patent Publication No. 60-22955, the lateral feed mechanism will be described with reference to the drawings (FIG. 4 etc.) of the publication, and the outer periphery of the cam 15 will be described. Although the cam groove 17 is provided on the surface and the feed table 40 is converted into a complete linear motion via the swing lever 45 and the link 55, the vertical feed is performed by swinging from the cam groove 16 provided on the side surface of the cam 15. The swing arms 30 and 35 are swung through the moving lever 20 and the connecting rod 26. These swing arms 30, 35
The slide shaft 37 attached to the feed table 40
Penetrates and enables movement in the vertical feed direction (front-back direction: Y direction). However, strictly speaking, the swing arm 30,
Reference numeral 35 is fan-shaped swinging around the shaft 32. Here, considering the lengths of the swinging arms 30 and 35 and the vertical feed amount (maximum 3 mm), the displacement amount in the horizontal direction of the bed is certainly small, but if the rotation speed of the sewing machine is high, vibration, There was a problem that the noise became loud and had a great influence on them.

【０００５】ただし、この問題は、布送りカムとそれに
設けたカム溝の加工面が送り動作面に対して垂直なため
に生ずるもので、布送りカムおよびカム溝の加工面を送
り動作面と平行に取り付ければ容易に解消できる。しか
し、この場合、布送りカムはミシンフレーム内に構成さ
れるため、カムのタイミング合わせ、あるいは、カム上
に設けた皿浮かしタイミング調整ノッチの調整等に際し
て、ミシンを倒す必要があり、これは使用上およびメン
テナンス上の面で作業性が非常に悪くなってしまうとい
う問題がある。However, this problem occurs because the machined surface of the cloth feed cam and the cam groove formed therein is perpendicular to the feed operation surface. The machined surface of the cloth feed cam and the cam groove is referred to as the feed operation surface. It can be easily solved by installing them in parallel. However, in this case, since the cloth feed cam is configured inside the sewing machine frame, it is necessary to tilt the sewing machine when adjusting the timing of the cam or adjusting the plate floating timing adjustment notch provided on the cam. There is a problem in that workability becomes extremely poor in terms of maintenance and maintenance.

【０００６】そこで、本発明の目的は、２本針を備える
サイクルミシン等のミシンにおいて、２本針によるベル
トループ付けミシンのような針間隔が一定量離れていて
も同じ縫目の縫製が行え、しかも、所望の縫目を形成す
るためのカム溝の軌跡の決定を容易にするとともに、機
構的な振動・騒音の低減、布送り台の摩耗の低減を図
り、しかも、取り扱い上も良好なものとするようにした
布送り装置を提供することにある。Therefore, an object of the present invention is to sew the same stitches in a sewing machine such as a cycle sewing machine having two needles, even if the distance between the needles is the same as in a belt loop sewing machine having two needles. In addition, the locus of the cam groove for forming a desired stitch is easily determined, mechanical vibration and noise are reduced, and wear of the cloth feed table is reduced, and it is easy to handle. It is to provide a cloth feeding device adapted to do so.

【０００７】[0007]

【課題を解決するための手段】以上の課題を解決すべく
請求項１記載の発明は、布押えを有して布送り動作を行
う布送り台と、主軸に連動して布送り動作面とほぼ平行
する一固定軸線を中心に回転し、側面および外周面にカ
ム溝をそれぞれ有する布送りカムと、を備えるミシンの
布送り装置であって、前記布送り動作面に対して前後左
右の横送り方向および縦送り方向に移動可能なＸＹテー
ブルと、このＸＹテーブルに対し前記縦送り方向に移動
可能に組み付けた前記布送り台と、前記布送りカムの外
周面のカム溝に係合し、前記布送り動作面とほぼ平行す
る面に沿って前記横送り方向に揺動する横送り腕と、こ
の横送り腕と前記ＸＹテーブルとの間に介設した横送り
連結リンクと、を備えた構成を特徴としている。In order to solve the above-mentioned problems, the invention according to claim 1 has a cloth feed base having a cloth presser for carrying out a cloth feed operation, and a cloth feed operation surface interlocking with a main shaft. A cloth feeding device for a sewing machine, comprising: a cloth feeding cam that rotates about one fixed axis that is substantially parallel to each other and that has cam grooves on its side surface and outer circumferential surface, An XY table movable in the feed direction and the vertical feed direction, the cloth feed base assembled to the XY table so as to be movable in the vertical feed direction, and engaging with a cam groove on the outer peripheral surface of the cloth feed cam, A lateral feed arm swinging in the lateral feed direction along a surface substantially parallel to the cloth feed operation surface, and a lateral feed connecting link interposed between the lateral feed arm and the XY table are provided. It features a configuration.

【０００８】そして、請求項２記載の発明は、布押えを
有して布送り動作を行う布送り台と、主軸に連動して布
送り動作面とほぼ平行する一固定軸線を中心に回転し、
側面および外周面にカム溝をそれぞれ有する布送りカム
と、を備えるミシンの布送り装置であって、前記布送り
動作面に対して前後左右の横送り方向および縦送り方向
に移動可能なＸＹテーブルと、このＸＹテーブルに対し
前記縦送り方向に移動可能に組み付けた前記布送り台
と、前記布送りカムの側面のカム溝に係合し、前記布送
り動作面とほぼ直交する面に沿って前記布送り動作面に
対しほぼ直交方向に揺動する縦送り腕と、この縦送り腕
に接続され、かつ、前記縦送り腕の前記布送り動作面に
対しほぼ直交方向の揺動を変換して、前記布送り動作面
とほぼ直交する面に沿って前記縦送り方向に揺動する縦
送りレバーと、この縦送りレバーと前記布送り台との間
に介設した縦送り連結リンクと、を備えた構成を特徴と
している。According to the second aspect of the present invention, a cloth feed base having a cloth presser for performing a cloth feed operation and a fixed axis line which is interlocked with the main shaft and is substantially parallel to the cloth feed operation surface are rotated. ,
A cloth feed device for a sewing machine, comprising: a cloth feed cam having cam grooves on a side surface and an outer peripheral surface thereof, wherein the XY table is movable in front, rear, left, right, and lateral feed directions and a vertical feed direction with respect to the cloth feed operation surface. And a cloth feed base that is assembled to the XY table so as to be movable in the vertical feed direction, and a cam groove on a side surface of the cloth feed cam that engages with the cloth feed base along a surface that is substantially orthogonal to the cloth feed operation surface. A vertical feed arm that swings in a direction substantially orthogonal to the cloth feed operation surface, and a swing that is connected to the vertical feed arm and that swings in a direction substantially orthogonal to the cloth feed operation surface of the vertical feed arm. A vertical feed lever swinging in the vertical feed direction along a surface substantially orthogonal to the cloth feed operation surface, and a vertical feed connecting link interposed between the vertical feed lever and the cloth feed base, It is characterized by a configuration with.

【０００９】[0009]

【作用】請求項１記載の発明によれば、ＸＹテーブルに
対し、布送り台を縦送り方向に移動可能に組み付け、布
送りカムの外周面のカム溝に係合して横送り方向に揺動
する横送り腕とＸＹテーブルとの間に横送り連結リンク
を介設して横送り機構を構成し、特に、ＸＹテーブルに
布送り台を載せたので、回転方向の動きを生じさせずに
布送り台を横送り方向に動かせる。また、布送りカムの
外周面のカム溝により生じた左右方向の揺動運動を、Ｘ
Ｙテーブルに直接伝達するように横送り連結リンクによ
り連結したので、部品点数が少なくて済み、しかも、カ
ム溝と布送り台との高さ方向の違いから生じるモーメン
トの発生が極力低くなる。そして、カム溝からＸＹテー
ブルへの連結部品が、従来のように球間接連結されてお
らず、布送り台が左右方向に直線運動するので、所望の
縫目を形成するためのカム溝の軌跡の決定が容易に行え
る。さらに、布送りカムをミシンフレーム内に構成する
必要がないので、メンテナンス等に際して、ミシンを倒
す必要がなく、取り扱い上も良好となる。According to the first aspect of the present invention, the cloth feed table is attached to the XY table so as to be movable in the vertical feed direction, and is engaged with the cam groove on the outer peripheral surface of the cloth feed cam to swing in the lateral feed direction. A transverse feed mechanism is configured by interposing a transverse feed connecting link between the moving transverse feed arm and the XY table. Especially, since the cloth feed table is placed on the XY table, the movement in the rotational direction does not occur. The cloth feed base can be moved in the lateral feed direction. In addition, the swinging motion in the left-right direction caused by the cam groove on the outer peripheral surface of the cloth feed cam is
Since it is connected by the lateral feed connecting link so as to be directly transmitted to the Y table, the number of parts is small, and the moment generated due to the difference in the height direction between the cam groove and the cloth feed base is minimized. Since the connecting part from the cam groove to the XY table is not indirectly connected to the ball as in the conventional case, and the cloth feed table linearly moves in the left-right direction, the locus of the cam groove for forming a desired stitch. Can be easily determined. Further, since it is not necessary to form the cloth feed cam in the sewing machine frame, it is not necessary to tilt the sewing machine for maintenance or the like, and the handling is good.

【００１０】そして、請求項２記載の発明によれば、Ｘ
Ｙテーブルに対し、布送り台を縦送り方向に移動可能に
組み付け、布送りカムの側面のカム溝に係合して上下方
向に揺動する縦送り腕に、その上下方向の揺動を変換し
て縦送り方向に揺動する縦送りレバーを接続して、この
縦送りレバーと布送り台との間に縦送り連結リンクを介
設して縦送り機構を構成し、特に、ＸＹテーブルに布送
り台を載せたので、回転方向の動きを生じさせずに布送
り台を横送り方向に動かせる。また、布送りカムの側面
のカム溝により生じた上下方向の揺動運動を、布送り台
に対し前後左右方向（ＸＹ方向）以外の運動成分を極力
低く抑えることができるように縦送り連結リンクを介し
て変換させたことにより、布送り台がスムーズに動くよ
うになるので、振動・騒音が低減し、しかも、布送り台
の摩耗も低減する。そして、カム溝から布送り台への連
結部品が、従来のように球間接連結されておらず、布送
り台が前後方向に直線運動するので、所望の縫目を形成
するためのカム溝の軌跡の決定が容易に行える。さら
に、布送りカムをミシンフレーム内に構成する必要がな
いので、メンテナンス等に際して、ミシンを倒す必要が
なく、取り扱い上も良好となる。According to the invention of claim 2, X
The cloth feed table is attached to the Y-table so that it can move in the vertical feed direction, and the vertical swing is converted into a vertical feed arm that engages with the cam groove on the side of the fabric feed cam and swings in the vertical direction. Then, a vertical feed lever that swings in the vertical feed direction is connected, and a vertical feed connection link is provided between the vertical feed lever and the cloth feed base to form a vertical feed mechanism. Since the cloth feed base is placed, the cloth feed base can be moved in the lateral feed direction without causing any movement in the rotation direction. In addition, the vertical feed connecting link allows the vertical swing motion generated by the cam grooves on the side surface of the cloth feed cam to be suppressed as low as possible in the motion components other than the front, rear, left and right directions (XY directions) with respect to the cloth feed base. Since the cloth feed table can be moved smoothly by converting through the, the vibration and noise are reduced, and the wear of the cloth feed table is also reduced. Further, since the connecting part from the cam groove to the cloth feed base is not indirectly ball-joined as in the conventional case, the cloth feed base moves linearly in the front-rear direction, so that the cam groove of the cam groove for forming a desired stitch is formed. The trajectory can be easily determined. Further, since it is not necessary to form the cloth feed cam in the sewing machine frame, it is not necessary to tilt the sewing machine for maintenance or the like, and the handling is good.

【００１１】[0011]

【実施例】以下に、本発明に係るミシンの布送り装置の
実施例を図１から図３に基づいて説明する。先ず、図１
は本発明を適用した一例としてのミシンの布送り装置を
示すもので、１はミシンアーム、２はミシンベッド、３
は布送りカム、４は横送り腕、５は横送り連結リンク、
６は縦送り腕、７は縦送りレバー、８は縦送り連結リン
ク、９はＸＹテーブル台、１０は布送り台である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cloth feeding device for a sewing machine according to the present invention will be described below with reference to FIGS. First, Fig. 1
1 shows a cloth feed device for a sewing machine as an example to which the present invention is applied, where 1 is a sewing machine arm, 2 is a sewing machine bed, and 3 is a sewing machine bed.
Is a cloth feed cam, 4 is a lateral feed arm, 5 is a lateral feed connecting link,
6 is a vertical feed arm, 7 is a vertical feed lever, 8 is a vertical feed connecting link, 9 is an XY table base, and 10 is a cloth feed base.

【００１２】ミシンアーム１はミシンベッド２上に固定
されていて、このミシンアーム１の側面に布送りカム３
が回転軸３ａを介して備えられている。この布送りカム
３は、ミシンアーム１内の図示しない主軸である駆動軸
（上軸）の回転と同期して回転駆動されるもので、軸線
を水平とした回転軸３ａによる一固定軸線を中心にし
て、布送り台１０の送り動作面に対して垂直に回転す
る。この布送り台１０の先端部には、布押え１０ａおよ
びその上下動動作を行うエアーシリンダー１０ｂが備え
られている。そして、この布送りカム３から布送り台１
０までの間に、図示しない被縫製物である布を左右方向
（Ｘ方向、横送り方向）に送る横送り機構と布を前後方
向（Ｙ方向、縦送り方向）に送る縦送り機構が介設され
ている。The sewing machine arm 1 is fixed on a sewing machine bed 2, and a cloth feed cam 3 is provided on the side surface of the sewing machine arm 1.
Is provided via the rotating shaft 3a. The cloth feed cam 3 is rotationally driven in synchronization with the rotation of a drive shaft (upper shaft), which is a main shaft (not shown) in the sewing machine arm 1, and is centered on a fixed axis line by the rotary shaft 3a with the axis line horizontal. Then, the cloth feeding table 10 is rotated perpendicularly to the feeding operation surface. A cloth presser 10a and an air cylinder 10b for vertically moving the cloth presser 10a are provided at the tip of the cloth feed base 10. Then, from the cloth feed cam 3 to the cloth feed base 1
Between 0 and 0, a lateral feed mechanism (not shown) that feeds cloth in the left-right direction (X direction, horizontal feed direction) and a vertical feed mechanism that feeds cloth in the front-rear direction (Y direction, vertical feed direction) are interposed. It is set up.

【００１３】図２は横送り機構の構成をミシンの上方か
ら見た状態で示すもので、１１はカム溝、１２はコロ、
１３は支点軸、１４は送り量調整溝、１５，１６はロー
ラーガイド、１７はＸＹテーブル、２７，２８はローラ
ーガイド、２９はローラーである。即ち、横送り機構に
ついて説明すると、布送りカム３の外周面に形成したカ
ム溝１１に、板面を水平状態に配置された横送り腕４の
一端部に取り付けたコロ１２が差し込まれて係合してい
る。従って、布送りカム３が回転すると、その外周面の
カム溝１１に沿ってコロ１２が左右方向（Ｘ方向）に動
き、前記ミシンベッド２上に固定される中間部の支点軸
１３を中心とした横送り腕４の揺動運動が得られる。FIG. 2 shows the structure of the transverse feed mechanism as seen from above the sewing machine. 11 is a cam groove, 12 is a roller,
13 is a fulcrum shaft, 14 is a feed amount adjusting groove, 15 and 16 are roller guides, 17 is an XY table, 27 and 28 are roller guides, and 29 is a roller. That is, the lateral feed mechanism will be described. A roller 12 attached to one end of the lateral feed arm 4 whose plate surface is arranged horizontally is inserted into a cam groove 11 formed on the outer peripheral surface of the cloth feed cam 3. I am fit. Therefore, when the cloth feed cam 3 rotates, the roller 12 moves in the left-right direction (X direction) along the cam groove 11 on the outer peripheral surface of the cloth feed cam 3, with the center of the fulcrum shaft 13 fixed on the sewing machine bed 2. The swinging motion of the lateral feed arm 4 can be obtained.

【００１４】この横送り腕４のコロ１２を備える部分と
支点軸１３を挟む他半部には、その長さ方向に沿って送
り量調整溝１４が形成されており、この送り量調整溝１
４に横送り連結リンク５が一端部の摺動自在な調整軸を
兼ねた段ねじ５ａにより接続されている。また、この横
送り連結リンク５の他半部は、段ねじ５ｂによりＸＹテ
ーブル１７に接続されている。このＸＹテーブル１７
は、横送り腕４の支点軸１３を中心とした揺動運動によ
り横送り連結リンク５を介して左右方向（Ｘ方向）の水
平かつ直線運動が得られるようになっている。A feed amount adjusting groove 14 is formed along the lengthwise direction in the other half part of the lateral feed arm 4 between which the roller 12 is provided and the fulcrum shaft 13, and the feed amount adjusting groove 1 is provided.
A horizontal feed connecting link 5 is connected to the unit 4 by a step screw 5a which also serves as a slidable adjusting shaft at one end. The other half of the transverse feed connecting link 5 is connected to the XY table 17 by a step screw 5b. This XY table 17
Is configured so that a horizontal and linear motion in the left-right direction (X direction) can be obtained via the lateral feed connecting link 5 by the swinging motion of the lateral feed arm 4 around the fulcrum shaft 13.

【００１５】即ち、ＸＹテーブル１７は、前記ミシンベ
ッド２上に配設されるＸＹテーブル台９の上に位置し
て、その四方をローラー２９，２９，２９，２９，…を
それぞれ介し各々のローラーガイド１５，１６，２７，
２８によりガタなくスムーズに動くよう囲まれている。
なお、ＸＹテーブル台９にはＸＹテーブル１７の前後の
ローラーガイド２７，２８が固定されている。このＸＹ
テーブル１７の左右のローラーガイド１５，１６は前後
方向（Ｙ方向）に移動自在であり、このローラーガイド
１５，１６に前記布送り台１０が取り付けられている。
従って、布送り台１０は、前後のローラーガイド２７，
２８に沿って移動するＸＹテーブル１７の左右方向（Ｘ
方向）の直線運動に追従する。That is, the XY table 17 is located on the XY table base 9 arranged on the sewing machine bed 2, and its four sides are provided with rollers 29, 29, 29, 29 ,. Guides 15, 16, 27,
It is surrounded by 28 so that it can move smoothly without rattling.
In addition, roller guides 27 and 28 before and after the XY table 17 are fixed to the XY table base 9. This XY
The left and right roller guides 15 and 16 of the table 17 are movable in the front-rear direction (Y direction), and the cloth feed base 10 is attached to the roller guides 15 and 16.
Therefore, the cloth feed base 10 is provided with the front and rear roller guides 27,
28 of the XY table 17 moving along the horizontal direction (X
Direction) linear motion.

【００１６】また、図３は縦送り機構の構成をミシンの
左側面から見た状態で示すもので、１８はカム溝、１９
はコロ、２０，２１は支点軸、２２は送り量調整溝、２
３は調整軸、２４は角駒、２５は角駒ガイド、２６は布
送り台軸である。即ち、縦送り機構について説明する
と、布送りカム３の側面に形成されたカム溝１８には、
板面を垂直状態としてほぼ水平方向へ向けて配置された
広角のベルクランク形の縦送り腕６の一端部に取り付け
たコロ１９が差し込まれて係合している。従って、布送
りカム３が回転すると、その側面のカム溝１８に沿って
コロ１９が上下方向（Ｚ方向）に動き、ミシンアーム１
に固定される中間角部の支点軸２０を中心とした縦送り
腕６の揺動運動が得られる。FIG. 3 shows the structure of the vertical feed mechanism as viewed from the left side surface of the sewing machine.
Is a roller, 20 and 21 are fulcrum shafts, 22 is a feed amount adjusting groove, 2
3 is an adjustment shaft, 24 is a square piece, 25 is a square piece guide, and 26 is a cloth feed base shaft. That is, the vertical feed mechanism will be described. In the cam groove 18 formed on the side surface of the cloth feed cam 3,
A roller 19 attached to one end of a wide-angle bell-crank vertical feed arm 6 that is arranged substantially horizontally with the plate surface in a vertical state is inserted and engaged. Therefore, when the cloth feed cam 3 rotates, the roller 19 moves in the vertical direction (Z direction) along the cam groove 18 on the side surface thereof, and the sewing machine arm 1
A swinging motion of the vertical feed arm 6 about the fulcrum shaft 20 of the intermediate corner portion fixed to is obtained.

【００１７】また、縦送りレバー７は、狭角のベルクラ
ンク形をなして、ミシンアーム１に固定される中間角部
の支点軸２１を中心とした揺動運動が可能となってい
る。そして、縦送り腕６のコロ１９を備える部分と支点
軸２０を挟む他半部には、その長さ方向に沿って送り量
調整溝２２が形成されており、この送り量調整溝２２に
調整軸２３が摺動自在に組み付けられている。この調整
ねじ２３の先端には、角駒２４が摺動自在に組み付けら
れており、この角駒２４は、縦送りレバー７の支点軸２
１を挟んだ一半部に形成した溝による角駒ガイド２５に
摺動自在に係合している。Further, the vertical feed lever 7 has a narrow-angle bell crank shape and is capable of swinging motion about a fulcrum shaft 21 at an intermediate corner fixed to the sewing machine arm 1. A feed amount adjusting groove 22 is formed along the lengthwise direction in the other half of the longitudinal feed arm 6 where the roller 19 is provided and the fulcrum shaft 20, and the feed amount adjusting groove 22 is adjusted. The shaft 23 is slidably assembled. A square piece 24 is slidably attached to the tip of the adjusting screw 23. The square piece 24 is a fulcrum shaft 2 of the vertical feed lever 7.
1 is slidably engaged with a square piece guide 25 which is formed by a groove formed in a half portion sandwiching 1.

【００１８】このように、縦送り腕６と縦送りレバー７
は、調整軸２３と角駒２４を介して接続されている。従
って、縦送り腕６の支点軸２０を中心とした揺動運動
は、角駒２４の角駒ガイド２５に沿った摺動を介して、
縦送りレバー７の支点軸２１を中心とした揺動運動とし
て変換される。ここで、縦送りレバー７は、支点軸２１
を中心とした扇形運動を行うが、この縦送りレバー７の
支点軸２１を挟んだ他半部に縦送り連結レバー８を一端
部の段ねじ８ａを介して接続し、この縦送り連結レバー
８の他端部を前記布送り台１０に布送り台軸２６を介し
て接続することによって、縦送りレバー７の前記扇形運
動を布送り台１０の前後方向（Ｙ方向）の水平かつ直線
運動に変換している。As described above, the vertical feed arm 6 and the vertical feed lever 7 are provided.
Are connected to the adjustment shaft 23 via a square piece 24. Therefore, the swinging motion of the vertical feed arm 6 about the fulcrum shaft 20 is caused by the sliding movement of the square piece 24 along the square piece guide 25.
It is converted as a swinging motion around the fulcrum shaft 21 of the vertical feed lever 7. Here, the vertical feed lever 7 has a fulcrum shaft 21.
The vertical feed connecting lever 8 is connected to the other half of the vertical feed lever 7 with the fulcrum shaft 21 interposed therebetween via the step screw 8a at one end. By connecting the other end of the cloth feed table 10 to the cloth feed table 10 via the cloth feed table shaft 26, the fan-shaped movement of the vertical feed lever 7 is made horizontal and linear in the front-back direction (Y direction) of the cloth feed table 10. Converting.

【００１９】なお、布送り台軸２６は、布送り台１０に
左右方向（Ｘ方向）と平行にして水平に取り付けられて
おり、この布送り台軸２６に対し縦送り連結リンク８が
軸方向に摺動自在で回転自在となっている。また、布送
り台１０は、前述した通り、ローラーガイド１５，１６
に取り付けられているため、左右方向（Ｘ方向）の直線
運動を行うＸＹテーブル１７に対して前後方向（Ｙ方
向）の直線運動を行う。従って、布送り台１０は、単体
で前後左右方向に移動自在で、しかも、水平方向に沿っ
た運動が可能となる。The cloth feed base shaft 26 is mounted horizontally on the cloth feed base 10 in parallel with the left-right direction (X direction), and the vertical feed connecting link 8 is axially attached to the cloth feed base shaft 26. It is slidable and rotatable. In addition, the cloth feed table 10 has the roller guides 15 and 16 as described above.
Since it is attached to the XY table 17, linear movement in the front-back direction (Y direction) is performed with respect to the XY table 17 that performs linear movement in the left-right direction (X direction). Therefore, the cloth feed table 10 can be moved in the front-rear direction and the left-right direction by itself, and can be moved in the horizontal direction.

【００２０】以上に説明したように、本発明のミシンの
布送り装置によれば、以下の効果が得られる。 （１）ＸＹテーブル１７に布送り台１０を載せているた
め、回転方向の動きを生じさせずに布送り台１０を前後
左右に動かせるので、例えば、ベルトループ付けミシン
のように、針間隔が一定量離れているミシンであって
も、同じ縫目の縫製ができる。As described above, according to the cloth feed device for the sewing machine of the present invention, the following effects can be obtained. (1) Since the cloth feed table 10 is placed on the XY table 17, the cloth feed table 10 can be moved back and forth and left and right without causing movement in the rotational direction. Even with sewing machines that are separated by a certain amount, the same stitch can be sewn.

【００２１】（２）ミシンベッド２上に沿った布送り動
作面に対し垂直な加工面によるカム溝１８により生じた
上下方向の揺動運動を、布送り台１０に対し前後左右方
向（ＸＹ方向）以外の運動成分を極力低く抑えることが
できるように縦送り連結リンク８を介して変換させたこ
とにより、布送り台１０がスムーズに動くため、振動・
騒音を低減し、しかも、布送り台１０の摩耗を低減する
ことができる。(2) The vertical swinging motion generated by the cam groove 18 formed by the processing surface along the sewing machine bed 2 which is perpendicular to the cloth feeding operation surface is moved in the front-back and left-right directions (XY directions) with respect to the cloth feeding table 10. The motion components other than) are converted through the vertical feed connecting link 8 so that the motion components can be suppressed as low as possible.
It is possible to reduce noise and reduce wear of the cloth feed table 10.

【００２２】（３）布送り動作面に対し平行な加工面に
よるカム溝１１により生じた左右方向の揺動運動を、Ｘ
Ｙテーブル１７に直接伝達するように横送り連結リンク
５により連結したので、部品点数が少なく、しかも、カ
ム溝１１と布送り台１０との高さ方向の違いから生じる
モーメントの発生を極力低くできる。(3) The swinging movement in the left-right direction generated by the cam groove 11 by the machining surface parallel to the cloth feeding operation surface is X.
Since it is connected by the lateral feed connecting link 5 so as to be directly transmitted to the Y table 17, the number of parts is small, and the generation of the moment caused by the difference in the height direction between the cam groove 11 and the cloth feed base 10 can be minimized. .

【００２３】（４）カム溝１１，１８からＸＹテーブル
１７または布送り台１０への連結部品が、従来のように
球間接連結されておらず、布送り台１０が前後左右方向
にそれぞれ直線運動するため、所望の縫目を形成するた
めのカム溝１１，１８の軌跡が容易に決定できる。(4) The connecting parts from the cam grooves 11 and 18 to the XY table 17 or the cloth feed table 10 are not indirectly ball-connected as in the conventional case, but the cloth feed table 10 moves linearly in the front-rear, left-right direction. Therefore, the loci of the cam grooves 11 and 18 for forming the desired stitch can be easily determined.

【００２４】（５）布送りカム３をミシンフレーム内に
構成する必要がないため、メンテナンス等に際して、ミ
シンを倒す必要がなく、従って、取り扱い上も良好であ
るといったり点が得られる。(5) Since it is not necessary to construct the cloth feed cam 3 in the sewing machine frame, it is not necessary to tilt the sewing machine for maintenance and the like, and therefore, it is easy to handle.

【００２５】なお、以上の実施例においては、縦送り機
構の縦送り腕と縦送りレバーとの間の運動変換機構につ
いて、角駒およびそのガイドを設けたが、本発明はこれ
に限定されるものではなく、他の構成による運動変換機
構であってもよい。また、ＸＹテーブルは、前後左右方
向のローラーガイドに代えて、軸とリニアガイドとテー
ブルを用いて積層構造にすることも容易に考えられる。
また、その他、横送り機構の具体的な細部構造等につい
ても適宜に変更可能であることは勿論である。In the above embodiment, the movement converting mechanism between the vertical feeding arm and the vertical feeding lever of the vertical feeding mechanism is provided with the square piece and its guide, but the present invention is not limited to this. The motion conversion mechanism is not limited to the one described above and may have another configuration. Further, it is easily conceivable that the XY table has a laminated structure using a shaft, a linear guide, and a table instead of the roller guides in the front, rear, left, and right directions.
In addition, it is needless to say that the specific detailed structure of the transverse feed mechanism can be appropriately changed.

【００２６】[0026]

【発明の効果】以上のように、請求項１記載の発明に係
るミシンの布送り装置によれば、ＸＹテーブルに対し、
布送り台を縦送り方向に移動可能に組み付け、布送りカ
ムの外周面のカム溝に係合して横送り方向に揺動する横
送り腕とＸＹテーブルとの間に横送り連結リンクを介設
して横送り機構を構成したため、以下の優れた利点を発
揮することができる。As described above, according to the cloth feeding device for a sewing machine according to the first aspect of the present invention, as compared with the XY table,
The fabric feed base is assembled so as to be movable in the vertical feed direction, and a horizontal feed connection link is interposed between the horizontal feed arm that engages with the cam groove on the outer peripheral surface of the fabric feed cam and swings in the horizontal feed direction, and the XY table. Since the horizontal feed mechanism is configured by providing the following advantages, the following excellent advantages can be exhibited.

【００２７】特に、ＸＹテーブルに布送り台を載せたた
め、回転方向の動きを生じさせずに布送り台を横送り方
向に動かすことができる。従って、ベルトループ付けミ
シンのように、針間隔が一定量離れているミシンでも、
同じ縫目の縫製ができる。In particular, since the cloth feed table is placed on the XY table, the cloth feed table can be moved in the lateral feed direction without causing movement in the rotational direction. Therefore, even with a sewing machine with a fixed distance between needles, such as a sewing machine with a belt loop,
The same stitch can be sewn.

【００２８】また、布送りカムの外周面のカム溝により
生じた左右方向の揺動運動を、ＸＹテーブルに直接伝達
するように横送り連結リンクにより連結したため、部品
点数が少なくて済み、しかも、カム溝と布送り台との高
さ方向の違いから生じるモーメントの発生を極力低くで
きる。そして、カム溝からＸＹテーブルへの連結部品
が、従来のように球間接連結されておらず、布送り台が
左右方向に直線運動するため、所望の縫目を形成するた
めのカム溝の軌跡を容易に決定できる。さらに、布送り
カムをミシンフレーム内に構成する必要がないため、メ
ンテナンス等に際して、ミシンを倒す必要がなく、取り
扱い上も良好なものとなる。Further, since the lateral swinging motion generated by the cam groove on the outer peripheral surface of the cloth feed cam is connected by the lateral feed connecting link so as to be directly transmitted to the XY table, the number of parts is small, and moreover, It is possible to minimize the generation of a moment caused by the difference in the height direction between the cam groove and the cloth feed base. Since the connecting part from the cam groove to the XY table is not indirectly ball-connected as in the past, the cloth feed table linearly moves in the left-right direction, and therefore the locus of the cam groove for forming a desired stitch. Can be easily determined. Further, since it is not necessary to configure the cloth feed cam in the sewing machine frame, it is not necessary to tilt the sewing machine for maintenance and the like, and the handling is good.

【００２９】そして、請求項２記載の発明に係るミシン
の布送り装置によれば、ＸＹテーブルに対し、布送り台
を縦送り方向に移動可能に組み付け、布送りカムの側面
のカム溝に係合して上下方向に揺動する縦送り腕に、そ
の上下方向の揺動を変換して縦送り方向に揺動する縦送
りレバーを接続して、この縦送りレバーと布送り台との
間に縦送り連結リンクを介設して縦送り機構を構成した
ため、以下の優れた利点を発揮することができる。According to the cloth feeding device of the sewing machine according to the second aspect of the invention, the cloth feeding base is attached to the XY table so as to be movable in the longitudinal feeding direction, and is engaged with the cam groove on the side surface of the cloth feeding cam. Connect the vertical feed arm that swings in the vertical direction to the vertical feed arm that swings in the vertical direction by connecting the vertical feed arm that swings in the vertical feed direction. Since the vertical feed mechanism is configured by interposing the vertical feed connection link in the above, the following excellent advantages can be exhibited.

【００３０】特に、ＸＹテーブルに布送り台を載せたた
め、回転方向の動きを生じさせずに布送り台を横送り方
向に動かすことができる。従って、ベルトループ付けミ
シンのように、針間隔が一定量離れているミシンでも、
同じ縫目の縫製ができる。In particular, since the cloth feed table is placed on the XY table, the cloth feed table can be moved in the lateral feed direction without causing movement in the rotational direction. Therefore, even with a sewing machine with a fixed distance between needles, such as a sewing machine with a belt loop,
The same stitch can be sewn.

【００３１】また、布送りカムの側面のカム溝により生
じた上下方向の揺動運動を、布送り台に対し前後左右方
向（ＸＹ方向）以外の運動成分を極力低く抑えることが
できるように縦送り連結リンクを介して変換させたこと
により、布送り台がスムーズに動くようになるため、振
動・騒音を低減でき、しかも、布送り台の摩耗も低減で
きる。そして、カム溝から布送り台への連結部品が、従
来のように球間接連結されておらず、布送り台が前後方
向に直線運動するため、所望の縫目を形成するためのカ
ム溝の軌跡を容易に決定できる。さらに、布送りカムを
ミシンフレーム内に構成する必要がないため、メンテナ
ンス等に際して、ミシンを倒す必要がなく、取り扱い上
も良好なものとなる。In addition, the vertical swing motion generated by the cam groove on the side surface of the cloth feed cam is controlled so that the motion components other than the front, rear, left and right directions (XY directions) can be suppressed to the cloth feed base as low as possible. Since the cloth feed table can be moved smoothly by converting the cloth feed link, vibration and noise can be reduced and wear of the cloth feed table can be reduced. And, the connecting part from the cam groove to the cloth feed base is not indirectly connected to the ball unlike the conventional art, and the cloth feed base moves linearly in the front-rear direction, so that the cam groove for forming the desired stitch is formed. The trajectory can be easily determined. Further, since it is not necessary to configure the cloth feed cam in the sewing machine frame, it is not necessary to tilt the sewing machine for maintenance and the like, and the handling is good.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明を適用した一例としてのミシンの布送り
装置を示す斜視図である。FIG. 1 is a perspective view showing a cloth feed device of a sewing machine as an example to which the present invention is applied.

【図２】図１の布送り装置の横送り機構の構成を示す平
面図である。FIG. 2 is a plan view showing a configuration of a lateral feeding mechanism of the cloth feeding apparatus of FIG.

【図３】図１の布送り装置の縦送り機構の構成を示す側
面図である。FIG. 3 is a side view showing a configuration of a vertical feeding mechanism of the cloth feeding apparatus of FIG.

【符号の説明】[Explanation of symbols]

１ ミシンアーム ２ ミシンベッド ３ 布送りカム ３ａ 回転軸 ４ 横送り腕 ５ 横送り連結リンク ６ 縦送り腕 ７ 縦送りレバー ８ 縦送り連結リンク ９ ＸＹテーブル台 １０ 布送り台 １１ カム溝 １２ コロ １３ 支点軸 １４ 送り量調整溝 １５，１６ ローラーガイド １７ ＸＹテーブル １８ カム溝 １９ コロ ２０，２１ 支点軸 ２２ 送り量調整溝 ２３ 調整軸 ２４ 角駒 ２５ 角駒ガイド ２６ 布送り台軸 ２７，２８ ローラーガイド ２９ ローラー 1 sewing machine arm 2 sewing machine bed 3 cloth feed cam 3a rotary shaft 4 side feed arm 5 side feed connection link 6 vertical feed arm 7 vertical feed lever 8 vertical feed connection link 9 XY table stand 10 cloth feed stand 11 cam groove 12 roller 13 fulcrum Shaft 14 Feed amount adjusting groove 15,16 Roller guide 17 XY table 18 Cam groove 19 Roller 20,21 Support shaft 22 Feed amount adjusting groove 23 Adjusting shaft 24 Square piece 25 Square piece guide 26 Cloth feed stand axis 27, 28 Roller guide 29 roller

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 布押えを有して布送り動作を行う布送り
台と、主軸に連動して布送り動作面とほぼ平行する一固
定軸線を中心に回転し、側面および外周面にカム溝をそ
れぞれ有する布送りカムと、を備えるミシンの布送り装
置であって、 前記布送り動作面に対して前後左右の横送り方向および
縦送り方向に移動可能なＸＹテーブルと、 このＸＹテーブルに対し前記縦送り方向に移動可能に組
み付けた前記布送り台と、 前記布送りカムの外周面のカム溝に係合し、前記布送り
動作面とほぼ平行する面に沿って前記横送り方向に揺動
する横送り腕と、 この横送り腕と前記ＸＹテーブルとの間に介設した横送
り連結リンクと、を備えたことを特徴とするミシンの布
送り装置。1. A cloth feed base having a cloth presser for performing a cloth feed operation, and a cam groove which is rotated around a fixed axis which is interlocked with a main shaft and which is substantially parallel to a cloth feed operation surface, and which is formed on a side surface and an outer peripheral surface. And a cloth feed cam having a cloth feed cam, and an XY table movable in the front-rear, left-right, and lateral feed directions with respect to the cloth feed operation surface, and the XY table. The cloth feed base, which is movably mounted in the vertical feed direction, engages with a cam groove on the outer peripheral surface of the cloth feed cam, and swings in the lateral feed direction along a surface substantially parallel to the cloth feed operation surface. A cloth feed device for a sewing machine, comprising: a moving lateral feed arm; and a lateral feed connecting link provided between the lateral feed arm and the XY table. 【請求項２】 布押えを有して布送り動作を行う布送り
台と、主軸に連動して布送り動作面とほぼ平行する一固
定軸線を中心に回転し、側面および外周面にカム溝をそ
れぞれ有する布送りカムと、を備えるミシンの布送り装
置であって、 前記布送り動作面に対して前後左右の横送り方向および
縦送り方向に移動可能なＸＹテーブルと、 このＸＹテーブルに対し前記縦送り方向に移動可能に組
み付けた前記布送り台と、 前記布送りカムの側面のカム溝に係合し、前記布送り動
作面とほぼ直交する面に沿って前記布送り動作面に対し
ほぼ直交方向に揺動する縦送り腕と、 この縦送り腕に接続され、かつ、前記縦送り腕の前記布
送り動作面に対しほぼ直交方向の揺動を変換して、前記
布送り動作面とほぼ直交する面に沿って前記縦送り方向
に揺動する縦送りレバーと、 この縦送りレバーと前記布送り台との間に介設した縦送
り連結リンクと、を備えたことを特徴とするミシンの布
送り装置。2. A cloth feed base having a cloth presser for carrying out a cloth feeding operation, and a cam groove on a side surface and an outer peripheral surface which rotates around a fixed axis which is interlocked with a main shaft and is substantially parallel to a cloth feeding operation surface. And a cloth feed cam having a cloth feed cam, and an XY table movable in the front-rear, left-right, and lateral feed directions with respect to the cloth feed operation surface, and the XY table. The cloth feed base assembled so as to be movable in the longitudinal feed direction, and the cloth feed operation surface along a plane that is engaged with a cam groove on a side surface of the cloth feed cam and is substantially orthogonal to the cloth feed operation surface. A vertical feed arm that swings in a substantially orthogonal direction, and a swing that is connected to the vertical feed arm and that swings in a direction substantially orthogonal to the cloth feed operation surface of the vertical feed arm is converted to the cloth feed operation surface. Swing in the vertical feed direction along a plane almost orthogonal to Vertical and the feed lever, the cloth feeding device of a sewing machine, characterized in that it comprises a longitudinal feed connection link which is interposed, the between the vertical feed lever and the cloth feed base that.