JPS6219338Y2 - - Google Patents
Info
- Publication number
- JPS6219338Y2 JPS6219338Y2 JP8640481U JP8640481U JPS6219338Y2 JP S6219338 Y2 JPS6219338 Y2 JP S6219338Y2 JP 8640481 U JP8640481 U JP 8640481U JP 8640481 U JP8640481 U JP 8640481U JP S6219338 Y2 JPS6219338 Y2 JP S6219338Y2
- Authority
- JP
- Japan
- Prior art keywords
- feed
- arm
- cam
- pattern
- sewing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009958 sewing Methods 0.000 claims description 44
- 239000004744 fabric Substances 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000012907 honey Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
（技術分野）
本考案はミシンの布送り量調節装置に係るもの
で、特にジグザグ縫等のように布送り量を一定に
設定して縫いを行う普通模様の選択時には、送り
調節用のつまみの回動操作により布送り量の中心
値に対して一定の範囲内で増減させることがで
き、スーパー模様縫の選択時には前記つまみの回
動操作によりスーパー模様縫の前後進の布送り量
ま一定の範囲内で前後に拡大、縮小できるように
構成したミシンの布送り量調節装置に関するもの
である。[Detailed description of the invention] (Technical field) The present invention relates to a cloth feed amount adjustment device for a sewing machine, and is particularly used when selecting a normal pattern such as zigzag stitch, which is sewn with a constant cloth feed amount. By rotating the feed adjustment knob, the cloth feed amount can be increased or decreased within a certain range from the center value, and when super pattern stitching is selected, the rotation of the knob allows the super pattern stitch to move forward or backward. This invention relates to a cloth feed amount adjusting device for a sewing machine configured to be able to increase or reduce the cloth feed amount back and forth within a certain range.
（従来技術）
ジグザグ縫等の普通模様縫と前後進の布送りが
自動的に与えられるスーパー模様縫との両縫機能
を備えたミシンにおいて、従来、送り機構は一つ
の送り調節器に対して普通模様縫用とスーパー模
様縫用の２系統の互に独立した制御がなされてい
たので、これら２系統の調節は単一の操作部材で
行なうことは困難であつた。(Prior Art) Conventionally, in sewing machines equipped with both normal pattern stitching such as zigzag stitching and super pattern stitching in which forward and backward cloth feed is automatically provided, the feed mechanism has been configured to operate with one feed adjuster. Since two systems for normal pattern sewing and super pattern sewing are controlled independently from each other, it is difficult to adjust these two systems using a single operating member.
従つて従来は普通模様縫だけに対して布送り量
を調節できるようにするのが一般的であつが、こ
のようなミシンでスーパー模様縫、例えばストレ
ツチ縫（〓）やハニー模様（〓）を縫成する場合
には、特に伸縮性の大きな布地や、厚い布地であ
ると前進、後進の布送り量が十分な大きさだけ得
られず縫成された模様が美しくなく問題であつ
た。 Therefore, in the past, it was common to be able to adjust the fabric feed amount only for normal pattern stitches, but these machines can also be used for super pattern stitches such as stretch stitches (〓) and honey stitches (〓). When sewing, particularly with highly stretchable fabrics or thick fabrics, it is difficult to obtain a sufficient amount of forward and backward feed of the fabric, causing the problem that the sewn pattern is not beautiful.
（目的）
本考案の目的とするところは、ジグザグ縫等の
普通模様縫と前後進の布送りが自動的に与えられ
るスーパー模様縫との両機能を備えたミシンにお
いて、第１に単一の送り調節用のつまみにより、
前記普通模様縫の選択時には模様選択用のダイア
ルの操作軸に固着した送りカムにより与えられた
縫模様に固有の固定的な布送り量をその回動操作
により一定の範囲で増減させることができ、前記
スーパー模様縫の選択時には自動送り用のカムに
より与えられる前後進の布送り量を前記つまみの
回動操作により前後一定の範囲内で拡大、縮小で
きるようにすることであり、第２には布地の条件
等に合わせて布送り量を調節することにより常に
好ましい状態で普通縫及びスーパー縫いが行える
ようにすることである。(Purpose) The purpose of the present invention is to first create a sewing machine that has both normal pattern stitching such as zigzag stitching and super pattern stitching in which forward and backward cloth feed is automatically provided. With the feed adjustment knob,
When the normal pattern sewing is selected, the fixed cloth feed amount specific to the sewing pattern given by the feed cam fixed to the operation shaft of the pattern selection dial can be increased or decreased within a certain range by rotating the feed cam. When the super pattern sewing is selected, the forward and backward cloth feed amount given by the automatic feed cam can be enlarged or reduced within a fixed range forward and backward by rotating the knob. The object of the present invention is to enable normal sewing and super sewing to be performed at all times under favorable conditions by adjusting the amount of cloth feed according to the conditions of the cloth, etc.
第３にはつまみを最大限に回動した状態で、模
様選択用のダイアル操作によりスーパー模様縫を
選択した場合、つまみが自動的に回動しつまみの
調節範囲の制限をできるようにすることである。 Thirdly, when super pattern stitching is selected by operating the pattern selection dial with the knob turned to the maximum, the knob automatically rotates to limit the adjustment range of the knob. It is.
（実施例）
以下本考案を実施例により説明する。本考案の
送り調節装置を組み込んでなるミシンの外観を第
１図に示す。同図において、ミシンの前面パネル
１に模様選択用のダイアル２と送り調節用のつま
み３が配設されており、該ダイアルにより、ジグ
ザグ縫等の普通縫模様を選択した場合には、つま
み３の回動操作により後記するように各縫模様に
固有の布送り量を中心値として、適宜の割合例え
ば±50％の範囲内で連続的に布送り量を変化させ
ることができ、スーパー縫模様を選択した場合に
は、その縫模様や被縫製布の条件等に応じて最適
になるように、つまみ３により後記するように前
後進の布送りピツチを夫々前後に拡大あるいは縮
小できるように構成されている。(Example) The present invention will be explained below with reference to an example. FIG. 1 shows the appearance of a sewing machine incorporating the feed adjustment device of the present invention. In the figure, a dial 2 for pattern selection and a knob 3 for adjusting the feed are provided on the front panel 1 of the sewing machine. When a normal sewing pattern such as zigzag stitch is selected using the dial, the knob 3 As described later, the cloth feed amount can be changed continuously within an appropriate percentage range of ±50%, with the cloth feed amount unique to each sewing pattern as the center value, as described later. When this is selected, the construction is such that the forward and backward cloth feed pitches can be enlarged or reduced in the forward and backward directions, respectively, using knob 3 to optimize the sewing pattern and the conditions of the fabric to be sewn, etc., as described later. has been done.
第２図において、主軸４はミシンのアーム機枠
に回動自在に支持され、モータ等の駆動源（図示
せず）により回転させられる。 In FIG. 2, the main shaft 4 is rotatably supported by the arm frame of the sewing machine, and is rotated by a drive source (not shown) such as a motor.
次に第３図をも参照しながら説明すると、アー
ム機枠にねじ５で固着された台板６の穴部６ａと
アーム機枠とで支持され、グリツプリング７でス
ラスト止めされたカム軸８には、主軸４に固着さ
れたウオーム９に噛合するウオームホイール１０
と該ウオームホイールと一体的に回転させられる
針棒振幅用のカム群１１及び自動送り用のカム１
２が嵌装され、また該カム軸には選択板１３がそ
の穴部１３ａを介して回動自在に嵌装され、ばね
（図示せず）によりカム軸８を中心に時計方向に
付勢されている。操作軸１４はカム軸８と平行に
なるようにアーム機枠に支持され、該操作軸には
カム群１１を後記するように選択する外周カム１
５ａと円筒カム１５ｂとを備えた選択カム体１５
と、ジグザグ模様縫いのため各縫模様に夫々固有
の固定的な送りを与える送りカム１６ａ及びスー
パー模様縫いのために後記するように自動送り腕
１７の従動子部１７ａをカム１２に接触させるス
ーパー縫用の選択カム１６ｂを備えたカム体１６
が固着されており、模様選択用のダイアル２によ
りミシンの外部から回動操作されるように構成さ
れている選択カム１６ｂには選択板１３のピン部
１３ｂが従動させられている。 Next, referring to FIG. 3, the camshaft 8 is supported by the hole 6a of the base plate 6 fixed to the arm frame with screws 5 and the arm frame, and is thrust fixed by the grip ring 7. is a worm wheel 10 that meshes with a worm 9 fixed to the main shaft 4.
and a needle bar amplitude cam group 11 and an automatic feeding cam 1 which are rotated integrally with the worm wheel.
2 is fitted on the camshaft, and a selection plate 13 is rotatably fitted on the camshaft through its hole 13a, and biased clockwise around the camshaft 8 by a spring (not shown). ing. The operating shaft 14 is supported by the arm machine frame so as to be parallel to the cam shaft 8, and the operating shaft has an outer peripheral cam 1 selected from a group of cams 11 as will be described later.
5a and a cylindrical cam 15b.
A feed cam 16a that provides a fixed feed unique to each sewing pattern for sewing a zigzag pattern, and a super feed cam that brings the follower portion 17a of the automatic feed arm 17 into contact with the cam 12 as described later for super pattern sewing. Cam body 16 equipped with sewing selection cam 16b
is fixed thereto, and a pin portion 13b of the selection plate 13 is driven by a selection cam 16b which is configured to be rotated from the outside of the sewing machine using the pattern selection dial 2.
針棒支持体１８は、その上端がアーム機枠１９
に固着されたピン２０に枢着され、ばね（図示せ
ず）により該ピンを中心に第２図の反時計方向に
付勢されており、下端に針２１を装着した針棒２
２を上下往複動可能に支持しており、針棒２２は
該針棒に固着された針棒だき２３及び一連のクラ
ンク機構により前記主軸４の回転に連動して上下
往複運動させられる。 The needle bar support 18 has its upper end connected to the arm machine frame 19.
The needle bar 2 is pivotally connected to a pin 20 fixed to the needle bar 2 and is biased counterclockwise in FIG.
The needle bar 22 is supported so as to be movable vertically and reciprocally in conjunction with the rotation of the main shaft 4 by a needle bar holder 23 fixed to the needle bar and a series of crank mechanisms.
振幅伝達レバー２４は、基端が針棒支持体１８
の上部においてピン２５を介して水平方向に回動
可能に枢着され、ばね２６（第４図）により第２
図上方より見て該ピンを中心に時計方向に付勢さ
れ、先端部には前記カム群１１にばね（図示せ
ず）の付勢力により当接させられる振幅用の第１
従動子２４ａが形成され、中間部には選択カム体
１５の外周カム１５ａに対する先端接触部と円筒
カム１５ｂに対する側方接触部とが一体的に形成
された従動子２７ａ（第４図）を備えた部材２７
がピン２８及びねじ２９により取り付けられてお
り、縫模様の選択は、ダイアル２の回動操作によ
り第５図に示すように指針３０を模様表示板３１
に表示された選択しようとする縫模様表示（pi）
のうちの１つに合わせることにより行われる。即
ちダイアル２の回動操作による模様選択の過程で
円筒カム１５ａにり第１従動子２４ａがカム群１
１からその半径方向に離脱させられ円筒カム１５
ｂにより従動子２７ａを介して振幅伝達レバー２
４がピン２５を中心に回動させられ、その結果と
して第１従動子２４ａがカム群１１の積層方向に
移動させられた後外周カム１５ａによりカム群１
１のうちの一つのカムに第１従動子２４ａが当接
させられ模様選択が行われるように構成されてい
る。 The amplitude transmission lever 24 has a proximal end connected to the needle bar support 18.
The upper part of the second
When viewed from the upper side of the figure, a first vibration control device for amplitude is biased clockwise around the pin, and the tip portion is brought into contact with the cam group 11 by the biasing force of a spring (not shown).
A follower 24a is formed, and the intermediate portion includes a follower 27a (FIG. 4) in which a tip contact portion of the selection cam body 15 with respect to the outer circumferential cam 15a and a side contact portion with respect to the cylindrical cam 15b are integrally formed. member 27
is attached by a pin 28 and a screw 29, and the sewing pattern can be selected by rotating the dial 2, as shown in FIG.
The sewing pattern display (pi) to be selected is displayed on
This is done by matching one of the That is, in the process of selecting a pattern by rotating the dial 2, the first follower 24a is moved to the cam group 1 by the cylindrical cam 15a.
a cylindrical cam 15 disengaged from 1 in its radial direction;
b, the amplitude transmission lever 2 is transmitted via the follower 27a.
4 is rotated around the pin 25, and as a result, the first follower 24a is moved in the stacking direction of the cam group 11, and then the outer cam 15a moves the cam group 1.
The first follower 24a is brought into contact with one of the cams to select a pattern.
再び第３図を参照しながら説明すると、自動送
り腕１７はそのボス部１７ｂを介して選択板１３
の軸部１３ｃに嵌装され、ばね３２により該軸部
を中心に同図の反時計方向に付勢されると共にＥ
リング３３によりスラスト止めされ、先端の穴部
１７ｃにはねじ３４が挿入され、該ねじにはその
先端部にナツト３５と共にロツド３６がねじ部３
６ａを介して固着され、該ロツドの穴部３６ｂに
は送り杆３７のピン部３７ａが挿入されＥリング
３８によりスラスト止めされている。前記送り杆
はその軸部３７ｂが台板６の穴部６ｂ及び６ｃに
挿通されＥリング３９によりスラスト止めされる
と共に軸部３７ｂでこれらの穴部間に位置する部
分には選択腕４０がボス部４０ａを介して嵌装さ
れ、該ボス部の外周に配設されたばね４１により
同図の時計方向に付勢され、そのピン部４０ｂが
送りカム１６ａに下方から従動させられるように
なつている。選択腕４０のねじ部４０ｃにナツト
４２と共に取り付けられたねじ４３の下端は送り
杆３７の上部面３７ｃと後記するように普通縫選
択時に接触し、送り杆３７の第３図におる時計方
向への回動を制限している。つまみ３が固着され
た軸４４には該軸の回動操作時にアーム機枠に対
して摩擦力を与えるための波形座金４５及びＥリ
ング４６が取り付けられており、また溝カム部４
７ａが形成された送り調節カム４７がその穴部４
７ｂ及び４７ｃを介して嵌装され、ねじ４８によ
り固着されている。 Referring again to FIG. 3, the automatic feed arm 17 is connected to the selection plate 13 via its boss portion 17b.
E
It is thrust-stopped by a ring 33, and a screw 34 is inserted into the hole 17c at the tip, and a rod 36 and a nut 35 are attached to the tip of the screw.
A pin portion 37a of a feed rod 37 is inserted into a hole 36b of the rod and is thrust-locked by an E-ring 38. The shaft portion 37b of the feed rod is inserted into the holes 6b and 6c of the base plate 6 and thrust-stopped by an E-ring 39, and a selection arm 40 is provided with a boss at the portion of the shaft portion 37b located between these holes. The pin part 40b is fitted through the boss part 40a and biased clockwise in the figure by a spring 41 disposed around the outer periphery of the boss part, so that the pin part 40b is driven by the feed cam 16a from below. . The lower end of the screw 43 attached to the threaded portion 40c of the selection arm 40 together with the nut 42 comes into contact with the upper surface 37c of the feed rod 37 during normal stitch selection as will be described later, and moves the feed rod 37 clockwise in FIG. rotation is restricted. A corrugated washer 45 and an E-ring 46 are attached to the shaft 44 to which the knob 3 is fixed, for applying a frictional force to the arm machine frame when the shaft is rotated, and the grooved cam portion 4
The feed adjustment cam 47 with the hole 4
7b and 47c, and is fixed with screws 48.
４９は送り調節腕で、穴部４９ａ及び４９ｂが
台板６のピン部６ｄが挿通し、Ｅリング５０によ
りスラスト止めされ、ピン部４９ｃが溝カム部４
７ａに係合しており、つまみ３の回動操作により
送り調節カム４７が回動させられ、送り調節腕４
９が揺動させられるように構成されている。 Reference numeral 49 is a feed adjustment arm, through which the pin portion 6d of the base plate 6 is inserted into the holes 49a and 49b, thrust-stopped by an E ring 50, and the pin portion 49c is inserted into the grooved cam portion 4.
7a, and when the knob 3 is rotated, the feed adjustment cam 47 is rotated, and the feed adjustment arm 4 is engaged with the feed adjustment cam 47.
9 is configured to be swung.
送り杆３７の穴部３７ｄには、中間付近に長溝
５１ａが形成された送り腕５１が一端のピン部５
１ｂを介して枢支され、Ｅリング５２によりスラ
スト止めされ、長溝５１ａには送り調節腕４９の
ピン部４９ｄが挿通し、他端のピン部５１ｃには
ロツド５３が穴部５３ａを介して接続されＥリン
グ５４によりスラスト止めされると共に該ロツド
の長溝５３ｂに送り調節板５５のピン部５５ａが
挿入され、Ｅリング５６によりスラスト止めされ
ている。 In the hole 37d of the feed rod 37, a feed arm 51 having a long groove 51a formed near the middle has a pin portion 5 at one end.
1b, and is thrust-stopped by an E-ring 52. A pin portion 49d of the feed adjustment arm 49 is inserted into the long groove 51a, and a rod 53 is connected to the pin portion 51c at the other end through a hole 53a. The pin portion 55a of the feed adjustment plate 55 is inserted into the long groove 53b of the rod, and the rod is thrust-stopped by an E-ring 56.
送り調節器５７のボス部５７ａには送り調節板
５５のボス部５５ｂが嵌装され、該送り調節器は
ピン部５７ｂに一端が係止されたばね５８により
同図の時計方向に付勢され、送り調節板５５のね
じ部５５ｃにナツト５９と共に取り付けられたね
じ６０の下端にその上面５７ｃが当接させられ、
回転方向が規制されており、該送り調節器は軸６
１に枢着され該軸はブツシユ６２及びねじ６３に
よりアーム機枠に取り付けられている。前記した
ように、送り調節器５７はそのピン部５７ｂを介
してばね５８により第３図の時計方向に付勢さ
れ、上面５７ｃに当接するねじ６０を介して送り
調節板５５を時計方向に付勢しており、ロツド５
３を介して送り腕５１を送り調節腕４９のピン部
４９ｄを中心に同図の時計方向に付勢し、ピン部
５１ｂを介して送り杆３７を軸部３７ｂを中心に
時計方向に付勢している。 The boss portion 55b of the feed adjusting plate 55 is fitted into the boss portion 57a of the feed adjuster 57, and the feed adjuster is biased clockwise in the figure by a spring 58 whose one end is locked to the pin portion 57b. The upper surface 57c of the screw 60 is brought into contact with the lower end of the screw 60 attached to the threaded portion 55c of the feed adjustment plate 55 together with the nut 59,
The direction of rotation is regulated, and the feed adjuster is connected to the shaft 6.
1, and the shaft is attached to the arm machine frame by a bush 62 and a screw 63. As described above, the feed adjuster 57 is biased clockwise in FIG. 3 by the spring 58 via its pin portion 57b, and the feed adjusting plate 55 is urged clockwise via the screw 60 that abuts the upper surface 57c. It is in full swing and Rod5
3, the feed arm 51 is urged clockwise in the figure centering on the pin portion 49d of the feed adjustment arm 49, and the feed rod 37 is urged clockwise around the shaft portion 37b via the pin portion 51b. are doing.
更に再び第３図を参照しながら説明すると、制
限板６５はその穴部６５ａを介して選択板１３の
軸部１３ｄに嵌装され、Ｅリング６６によりスラ
スト止めされ、先端にはフツク部６５ｂが形成さ
れている。選択板１３には制限板６５を適宜な位
置に停止させるための突片１３ｄ及び後記する送
り制限腕６７のピン部６７ｄと当接し得る突部１
３ｅが夫々形成されている。送り制限腕６７は送
り調節カム４７に隣接して軸部４４にその穴部６
７ａ及び６７ｂを介して嵌装され、ねじ６８によ
り固着されており、送り制限腕６７にはピン部６
７ｃ及び６７ｄが固着されており、ピン部６７ｃ
には制限板６５のフツク部６５ｂが係合し得るよ
うに、ピン部６７ｄには選択板１３の突部１３ｅ
が当接し得るように夫々構成されている。 Referring again to FIG. 3, the limiting plate 65 is fitted into the shaft part 13d of the selection plate 13 through the hole 65a, is thrust-stopped by an E-ring 66, and has a hook part 65b at the tip. It is formed. The selection plate 13 has a projection 13d for stopping the restriction plate 65 at an appropriate position and a projection 1 that can come into contact with a pin portion 67d of a feed restriction arm 67, which will be described later.
3e are formed respectively. The feed limiting arm 67 is adjacent to the feed adjusting cam 47 and has its hole 6 in the shaft portion 44.
7a and 67b, and is fixed with a screw 68, and the feed limiting arm 67 has a pin portion 6.
7c and 67d are fixed, and the pin part 67c
The protrusion 13e of the selection plate 13 is attached to the pin portion 67d so that the hook portion 65b of the restriction plate 65 can be engaged with the pin portion 67d.
They are each configured so that they can come into contact with each other.
（作用）
次に上記のように構成された本考案の作用につ
いて説明する。本考案の送り量調節装置によれ
ば、ダイアル２の回動操作によりジグザグ縫等の
普通模様を選択した場合には、つまみ３の回動操
作により各縫模様に固有の布送り量を中心値とし
て、適宜の割合例えば±50％の範囲内で連続的に
布送り量を変化させることができる。即ち、ダイ
アル２を回動させて前記したように普通縫模様を
選択すると、選択腕４０のピン部４０ｂがその普
通縫模様に固有の布送りを与える送りカム１６ａ
に従動する。この選択状態でつまみ３をその調節
範囲の中央に設定した第６図において、前記した
ようにばね５８により間接的に送り調節腕４９の
ピン部４９ｄを中心に同図の時計方向に付勢され
ている送り腕５１は、ピン部５１ｂにより軸部３
７ｂを中心に時計方向に付勢された送り杆３７の
上部面３７ｃがねじ４３の下端に当接する位置に
位置決めされる。この状態において送り腕３７の
軸部３７ｂの中心と送り調節腕４９のピン部４９
ｄの中心とが一致し、送り腕５１はそのピン部５
１ｃがピン部４９ｄを中心に送り調節器５７に送
り量０を与える位置からθ１だけ傾斜させられ、
ある一定の前進側の布送り量が得られる。(Operation) Next, the operation of the present invention configured as described above will be explained. According to the feed amount adjusting device of the present invention, when a normal pattern such as zigzag stitching is selected by rotating the dial 2, the cloth feed amount specific to each sewing pattern is adjusted to the center value by rotating the knob 3. As a result, the amount of cloth feed can be changed continuously within an appropriate ratio, for example, within a range of ±50%. That is, when the dial 2 is rotated to select a normal sewing pattern as described above, the pin portion 40b of the selection arm 40 moves the feed cam 16a to feed the cloth specific to the normal sewing pattern.
Follow. In FIG. 6, in which the knob 3 is set at the center of its adjustment range in this selected state, the spring 58 indirectly biases the feed adjustment arm 49 clockwise around the pin portion 49d, as described above. The feeding arm 51 is connected to the shaft portion 3 by the pin portion 51b.
The upper surface 37c of the feed rod 37, which is biased clockwise around 7b, is positioned at a position where it abuts the lower end of the screw 43. In this state, the center of the shaft portion 37b of the feed arm 37 and the pin portion 49 of the feed adjustment arm 49
d coincides with the center, and the feed arm 51
1c is tilted by θ 1 from a position that gives a feed amount of 0 to the feed adjuster 57 around the pin portion 49d,
A certain amount of cloth feed on the forward side can be obtained.
次に第７図に示すように送り調節用のつまみ３
を＋（プラス）の向きに、その調節範囲の最大位
置まで回動すると、送り調節カム４７が回動し送
り調節腕４９が同図に示すようにピン部６ｄを中
心にβ１だけ回動させられるのでピン部４９ｄが
長溝５１ａ内を同図に示すように移動させられ、
それによつて送り腕５１はそのピン部５１ｃがピ
ン部４９ｄを中心に第６図に示す状態より更にα
１だけ傾斜させられ、布送り量は第６図の状態に
対して前進送り側にある割合増加する。 Next, as shown in Figure 7, turn the feed adjustment knob 3.
When rotated in the + (plus) direction to the maximum position of its adjustment range, the feed adjustment cam 47 rotates and the feed adjustment arm 49 rotates by β 1 around the pin portion 6d as shown in the figure. As a result, the pin portion 49d is moved within the long groove 51a as shown in the figure.
As a result, the pin portion 51c of the feed arm 51 is further α than the state shown in FIG. 6 with the pin portion 49d as the center.
1 , the cloth feed amount increases by a certain percentage on the forward feed side with respect to the state of FIG.
次に第８図に示すように送り調節用のつまみ３
を−（マイナス）の向きにその調節範囲の最大位
置まで回動すると、送り調節カム４７が回動し送
り調節腕４９が同図に示すようにピン部６ｄを中
心にβ２だけ回動させられるのでピン部４９ｄが
長溝５１ａ内を同図に示すように移動させられ、
それによつて送り腕５１はそのピン部５１ｃがピ
ン部４９ｄを中心に第６図に示す状態よりα２だ
け傾斜が減少させられ、布送り量は第６図の状態
に対してある割合減少させられる。つまみ３は連
続的な回動操作ができるので、送り腕５１の傾斜
角は上記した例におけるθ１＋α１とθ１−α２
の範囲内で連続的に調節することができ、送り量
を所望の値に設定することができる。 Next, as shown in Figure 8, turn the feed adjustment knob 3.
When rotated in the - (minus) direction to the maximum position of its adjustment range, the feed adjustment cam 47 rotates and the feed adjustment arm 49 rotates by β2 around the pin portion 6d as shown in the figure. Since the pin portion 49d is moved within the long groove 51a as shown in the figure,
As a result, the inclination of the feeding arm 51 with its pin portion 51c centered around the pin portion 49d is reduced by α2 compared to the state shown in FIG. 6, and the cloth feeding amount is reduced by a certain percentage compared to the state shown in FIG. It will be done. Since the knob 3 can be rotated continuously, the inclination angle of the feed arm 51 is θ 1 +α 1 and θ 1 −α 2 in the above example.
can be continuously adjusted within the range of , and the feed amount can be set to a desired value.
また本考案の送り量調節装置によれば、スーパ
ー縫模様選択時において、つまみ３の回動操作に
より、前後進の送り量と一定の割合で前後に拡大
あるいは縮小させることができる。 Further, according to the feed amount adjusting device of the present invention, when selecting a super sewing pattern, by rotating the knob 3, it is possible to enlarge or reduce the feed amount forward and backward at a constant rate with the forward and backward feed amount.
即ち、ダイアル２を回動してスーパー縫模様を
選択すると、前記したようにその縫模様に対する
カムがカム群１１の中から選択されると共に選択
板１３が選択カム１６ｂによりピン部１３ｂを介
して第３図においてカム軸８を中心に反時計方向
に回動させられるので自動送り腕１７が下降し、
従動子部１７ａがカム１２に当接させられ、更に
選択腕４０がボス部４０ａを中心に選択カム１６
ａによりピン部４０ｂを介して時計方向に回動さ
せられ、送り腕１７にねじ３４、ロツド３６を介
して接続された送り杆３７は、その上部面３７ｃ
が選択腕４０に固着されたねじ４３の下端と、非
接触の状態で前記カム１２により揺動させられ、
送り腕５１は送り杆３７によりピン部５１ｂを介
して送り調節腕４９のピン部４９ｄを中心として
揺動させられる。 That is, when the dial 2 is rotated to select a super sewing pattern, the cam for that sewing pattern is selected from the cam group 11 as described above, and the selection plate 13 is selected by the selection cam 16b via the pin portion 13b. In FIG. 3, the automatic feed arm 17 descends as it is rotated counterclockwise around the camshaft 8.
The follower portion 17a is brought into contact with the cam 12, and the selection arm 40 is moved around the selection cam 16 around the boss portion 40a.
The feed rod 37, which is rotated clockwise by a pin portion 40b and connected to the feed arm 17 via a screw 34 and a rod 36, has an upper surface 37c.
is swung by the cam 12 in a non-contact state with the lower end of the screw 43 fixed to the selection arm 40,
The feed arm 51 is swung around the pin portion 49d of the feed adjustment arm 49 by the feed rod 37 via the pin portion 51b.
この選択状態でつまみ３をその調節範囲の中央
に設定すると第９図、第１０図に示すように一定
の前後進の布送りが得られる。 In this selected state, if the knob 3 is set to the center of its adjustment range, constant forward and backward cloth feeding can be obtained as shown in FIGS. 9 and 10.
第９図、第１０図において、前記したように選
択腕40のねじ43は送り杆３７から離れ、選択カム
１６ｂにより選択板１３が反時計方向に回動させ
られるので、自動送り腕１７の従動子部１７ａは
カム１２に従動し送り量はカム１２により与えら
れる。これらの状態でつまみ３をその調節範囲の
中央に設定すると、送り杆３７の軸部３７ｂの中
心と送り調節腕４９のピン部４９ｄの中心とが一
致する。第９図において従動子部１７ａがカム１
２の谷に従動しており、送り腕５１はピン部４９
ｄを中心にして、送り腕１７、ねじ３４、ロツド
３６、送り杆３７を介してそのピン部５１ｃが送
り調節器５７に送り量０を与える位置から時計方
向にε１だけ傾斜させられ、ある一定の前進送り
が得られる。第１０図において、従動子部１７ａ
がカム１２の山に従動しており、送り腕５１はピ
ン部４９ｄを中心にして、送り腕１７、ねじ３
４、ロツド３６、送り杆３７を介して、そのピン
部５１ｃが送り調節器５７に送り量０を与える位
置から反時計方向にε２だけ傾斜させられ、ある
一定の前進送りが得られる。前記したε１とε２
とは設計上等しくとることができるから、この場
合には前後進の送り量の等しいスーパー縫いを行
うことができる。 9 and 10, as described above, the screw 43 of the selection arm 40 is separated from the feed rod 37, and the selection plate 13 is rotated counterclockwise by the selection cam 16b, so that the automatic feed arm 17 is driven. The child portion 17a is driven by the cam 12, and the feed amount is given by the cam 12. When the knob 3 is set to the center of its adjustment range in these conditions, the center of the shaft portion 37b of the feed rod 37 and the center of the pin portion 49d of the feed adjustment arm 49 coincide. In FIG. 9, the follower part 17a is connected to the cam 1.
The feeding arm 51 is driven by the pin part 49.
Centering on point d, the pin portion 51c is tilted clockwise by ε 1 from the position where the feed amount is 0 to the feed adjuster 57 via the feed arm 17, screw 34, rod 36, and feed rod 37. A constant forward feed can be obtained. In FIG. 10, the follower part 17a
is driven by the peak of the cam 12, and the feed arm 51 is centered around the pin portion 49d, and the feed arm 17 and the screw 3
4. Through the rod 36 and the feed rod 37, the pin portion 51c is tilted counterclockwise by ε2 from the position where the feed amount 0 is given to the feed adjuster 57, so that a certain forward feed is obtained. The above ε 1 and ε 2
can be set equal in terms of design, so in this case super stitching can be performed in which the forward and backward feed amounts are equal.
第９図、第１０図に示す状態からつまみ３を＋
（プラス）側に回動調節すると、第11図に示すよ
うに軸４４を介して送り調節カム４７が同図の時
計方向に回動させられ、送り調節腕４９がピン部
６ｄを中心に回動させられピン部４９ｄが送り腕
５１の長溝５１ａ内を移動するので、従動子部１
７ａがカム１２の谷に従動している第１１図の場
合には、ピン部５１ｃは第９図の状態に対して更
にα１だけ傾斜が増加し、前進送りが拡大させら
れる。また従動子部１７ａがカム１２の山部に従
動するようになると、第１２図に示すように第１
０図の状態に対して更にα２だけ傾斜が増加し、
後進送りが拡大させられる。設計上α１とα２と
は等しくとることができるから前後進の送り量を
等しくして前後に拡大することができる。 From the state shown in Figures 9 and 10, turn knob 3 +
When the rotation is adjusted to the (plus) side, the feed adjustment cam 47 is rotated clockwise through the shaft 44 as shown in FIG. 11, and the feed adjustment arm 49 is rotated around the pin portion 6d. Since the pin portion 49d moves within the long groove 51a of the feed arm 51, the follower portion 1
In the case of FIG. 11 where 7a is driven by the valley of the cam 12, the slope of the pin portion 51c is further increased by α1 compared to the state of FIG. 9, and the forward feed is expanded. Moreover, when the follower part 17a comes to follow the peak part of the cam 12, the first part as shown in FIG.
The slope further increases by α 2 compared to the state in figure 0,
Reverse feed is expanded. Since α 1 and α 2 can be set equal in design, the forward and backward feed amounts can be made equal and expanded forward and backward.
従つてスーパー縫の例としてストレツチ縫
（〓）やハニー模様（〓）を縫成する場合、特に
伸縮性の大きな布地や厚い布地であると従来の欠
点であつた前後進の送りが十分に得られないとい
つた問題を解決することができる。つまみ３を−
（マイナス）側に回動調節すると上記したのと同
様に前後進の送り量が等しい状態で前後に縮小す
ることができる。 Therefore, when sewing a stretch stitch (〓) or a honey pattern (〓) as an example of super stitching, the forward and backward feed, which was a conventional drawback, can be sufficiently achieved, especially when sewing fabrics with large stretch or thick fabrics. You can solve problems that you say you can't solve. Knob 3 -
By adjusting the rotation to the (minus) side, it is possible to reduce the forward and backward movement with the forward and backward feed amounts being equal, in the same way as described above.
次に第１３図に示すように、第７図の状態、即
ち送り調節用つまみ３が＋の向きに、その調節範
囲の最大位置まで回動した状態からダイアル２を
回動してスーパー縫を選択すると、選択板１３が
ピン部１３ｂを介して選択カム１６ｂにより反時
計方向に回動する。すると送り調節カム４７が送
り制限腕６７のピン部６７ｃと係合している制限
板６５のフツク部６５ｂを介して反時計方向にγ
１だけ回動し、その結果送り腕５１の傾斜角はα
1′（＜α１）となり、布送り量は第７図の状態に
対して前進送り側にある割合減少する。 Next, as shown in Fig. 13, from the state shown in Fig. 7, that is, the state in which the feed adjustment knob 3 has been rotated in the + direction to the maximum position of its adjustment range, the dial 2 is rotated to perform super stitching. When selected, the selection plate 13 is rotated counterclockwise by the selection cam 16b via the pin portion 13b. Then, the feed adjusting cam 47 moves γ counterclockwise via the hook portion 65b of the limiting plate 65 that is engaged with the pin portion 67c of the feed limiting arm 67.
As a result, the inclination angle of the feed arm 51 is α
1 '(<α 1 ), and the cloth feed amount decreases by a certain percentage on the forward feed side compared to the state shown in FIG.
次に第１４図に示すように、第８図の状態即ち
送り調節用つまみ３が−の向きに、その調節範囲
の最大位置まで回動した状態からダイアル２を回
動してスーパー縫を選択すると、選択板１３は第
１３図と同様反時計方向に回動する。すると送り
調節カム４７が送り制限腕６７のピン部６７ｄと
当接する選択板１３の突部１３ｅによつて時計方
向にγ２だけ回動し、その結果送り腕５１の傾斜
角はα2′（＜α２）となり、布送り量は第８図の
状態に対して後進送り側にある割合減少する。 Next, as shown in Fig. 14, from the state shown in Fig. 8, that is, the state in which the feed adjustment knob 3 has been rotated in the - direction to the maximum position of its adjustment range, rotate the dial 2 to select super stitching. Then, the selection plate 13 rotates counterclockwise as in FIG. 13. Then, the feed adjustment cam 47 is rotated clockwise by γ2 by the protrusion 13e of the selection plate 13 that comes into contact with the pin portion 67d of the feed limiter arm 67, and as a result, the inclination angle of the feed arm 51 is α2 '( <α 2 ), and the cloth feed amount decreases by a certain percentage on the backward feed side compared to the state shown in FIG.
（効果）
以上のように本考案によれば、ジグザグ縫の普
通模様縫と前後進の送りが自動的に与えられるス
ーパー模様縫との両機能を備えたミシンにおい
て、第１に単一の送り調節用のつまみにより、前
記普通模様縫の選択用のダイアルの操作軸に固着
した送りカムにより与えられた縫模様に固有の固
定的な送り量をその回動操作により一定の範囲内
で増減させることができ、前記スーパー模様縫の
選択時には自動送り用のカムにより与えられる前
後進の送り量を前記つまみの回動操作により前後
に一定の範囲内で拡大、縮小できるという効果が
得られ、第２には布地の条件等に合わせて送り量
を調節することにより常に好ましい状態で普通縫
及びスーパー縫いが行えるという効果が得られ
る。また、第３にはつまみを最大限に回動した状
態で、模様選択用のダイアル操作によりスーパー
模様縫を選択した場合、つまみが自動的に回動し
つまみの調節範囲を制限することができるので、
常に好ましい状態でスーパー縫が行えるという効
果が得られる。(Effects) As described above, according to the present invention, in a sewing machine that has both functions of normal pattern sewing of zigzag stitch and super pattern sewing in which forward and backward feeds are automatically given, the first advantage is that the single feed By rotating the adjustment knob, the fixed feed amount specific to the sewing pattern given by the feed cam fixed to the operating shaft of the dial for selecting the normal pattern sewing can be increased or decreased within a certain range. When the super pattern stitch is selected, the forward and backward feed amount given by the automatic feed cam can be enlarged or reduced within a certain range forward and backward by rotating the knob. 2. By adjusting the feed amount in accordance with the conditions of the fabric, normal stitching and super stitching can always be carried out under favorable conditions. Thirdly, if you select super pattern sewing by operating the pattern selection dial with the knob rotated to its maximum, the knob will automatically rotate to limit the adjustment range of the knob. So,
The effect is that super stitching can always be performed under favorable conditions.
第１図から第１２図は本考案の実施例に係り、
第１図は送り調節装置を組み込んでなるミシンの
外観斜視図、第２図は主要機構部を示す斜視図、
第３図は主要機構部を示す分解斜視図、第４図、
第５図は夫々第２図Ａ矢視になる主要機構の部分
を示す図である。第６図から第８図は普通模様縫
選択時における各制御状態を示す図で、第６図は
つまみをその調節範囲の中央に設定した状態、第
７図はつまみを＋の向きにその調節範囲の最大位
置まで回動操作した状態、第８図はつまみを−の
向きにその調節範囲の最大位置まで回動操作した
状態を夫々示す。第９図から第１２図はスーパー
模様縫選択時における各制御状態を示す図で、第
９図、第１０図はつまみをその調節範囲の中央に
設定した状態で、夫々この順に自動送り用のカム
による前進送り状態、後進送り状態を示す。第１
１図、第１２図はつまみを第９図、第１０図に示
す位置から＋側に回動操作した状態で、夫々この
順に前記カムによる前進送り状態、後進送り状態
を示す。第１３図はつまみを＋の向きに、第１４
図はつまみを−の向きに夫々その調節範囲の最大
位置まで回動した状態から、ダイアルを回動して
スーパー模様縫を選択した状態を示す。
図中、２はダイアル、３はつまみ、１３は選択
板、１３ｂ，１３ｅは該選択板のピン部及び突
部、１４は軸、１６ｂは選択カム、４４は軸、６
５は制限板、６５ｂは該制限板のフツク部、６７
は送り制限腕、６７ｃ，６７ｄは該送り制限腕の
ピン部である。
1 to 12 relate to embodiments of the present invention,
Fig. 1 is an external perspective view of a sewing machine incorporating a feed adjustment device, Fig. 2 is a perspective view showing the main mechanism,
Figure 3 is an exploded perspective view showing the main mechanism parts; Figure 4;
FIG. 5 is a diagram showing the main mechanism portions as viewed from the arrow A in FIG. 2, respectively. Figures 6 to 8 are diagrams showing each control state when normal pattern stitching is selected. Figure 6 shows the state in which the knob is set at the center of its adjustment range, and Figure 7 shows the state in which the knob is adjusted in the + direction. FIG. 8 shows a state in which the knob has been rotated to the maximum position of its adjustment range, and FIG. 8 shows a state in which the knob has been rotated in the - direction to the maximum position of its adjustment range. Figures 9 to 12 are diagrams showing each control state when super pattern stitching is selected. Figures 9 and 10 show the automatic feed control states in this order with the knob set at the center of its adjustment range. It shows the forward feeding state and backward feeding state by the cam. 1st
1 and 12 show the forward feeding state and backward feeding state by the cam in this order, respectively, with the knob rotated in the positive direction from the position shown in FIGS. 9 and 10. Figure 13 shows the knob in the + direction.
The figure shows a state in which the knobs have been turned in the negative direction to the maximum position of their respective adjustment ranges, and then the dial has been turned to select super pattern stitching. In the figure, 2 is a dial, 3 is a knob, 13 is a selection plate, 13b, 13e are pins and projections of the selection plate, 14 is a shaft, 16b is a selection cam, 44 is a shaft, 6
5 is a restriction plate, 65b is a hook portion of the restriction plate, 67
is a feed limiting arm, and 67c and 67d are pin portions of the feed limiting arm.
Claims (1)
的に与えられるスーパー模様縫とを選択できる如
く軸１４に固着された模様選択用のダイアル２
と、該ダイアルを固着する操作軸１４に設けた選
択カム１６ｂによつて回動せしめられ選択板１３
を介して主軸４に連動する自動送り用カム１２に
係脱する自動送り腕１７を設け、前記ダイアルに
よつて選択された各縫模様に固有の布送り量を中
心値として適宜の割合で連続的に布送り量を変化
させることができるつまみ３を固着した軸４４に
送り調節カム４７と送り制限腕６７とを固着し、
該送り調節カムに形成の溝カム部４７ａに台板６
に枢着された送り調節腕４９の一端に固着のピン
部４９ｃが係合され、該送り調節腕の他端に設け
たピン部４９ｄが送り腕５１の長溝５１ａに挿通
し、前記つまみ３の回動範囲を選択された模様に
応じて制限するように前記送り制限腕６７に設け
たピン６７ｃに前記選択板１３に枢着した制限板
６５のフツク部６５ｂを係止せしめることを特徴
とするミシンの布送り量調節装置。 A dial 2 for pattern selection is fixed to the shaft 14 so that the normal pattern sewing of zigzag sewing and the super pattern sewing in which forward and backward feed is automatically given can be selected.
The selection plate 13 is rotated by a selection cam 16b provided on the operating shaft 14 to which the dial is fixed.
An automatic feed arm 17 is provided which engages and disengages from an automatic feed cam 12 that is linked to the main shaft 4 through the dial. A feed adjustment cam 47 and a feed limiting arm 67 are fixed to a shaft 44 to which a knob 3 that can change the amount of cloth feed is fixed,
A base plate 6 is attached to the groove cam portion 47a formed on the feed adjustment cam.
A fixed pin portion 49c is engaged with one end of the feed adjustment arm 49, which is pivotally connected to the feed adjustment arm, and a pin portion 49d provided at the other end of the feed adjustment arm is inserted into the long groove 51a of the feed arm 51, and the knob 3 is A hook portion 65b of a limiting plate 65 pivotally connected to the selection plate 13 is locked to a pin 67c provided on the feed limiting arm 67 so as to limit the rotation range according to the selected pattern. Cloth feed adjustment device for sewing machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8640481U JPS6219338Y2 (en) | 1981-06-12 | 1981-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8640481U JPS6219338Y2 (en) | 1981-06-12 | 1981-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57200179U JPS57200179U (en) | 1982-12-20 |
| JPS6219338Y2 true JPS6219338Y2 (en) | 1987-05-18 |
Family
ID=29881633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8640481U Expired JPS6219338Y2 (en) | 1981-06-12 | 1981-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6219338Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60210284A (en) * | 1984-04-02 | 1985-10-22 | ブラザー工業株式会社 | Limit apparatus for adjusting stitch line forming position in sewing machine |
-
1981
- 1981-06-12 JP JP8640481U patent/JPS6219338Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57200179U (en) | 1982-12-20 |
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