JPS6168078A - Cloth feeder of sewing machine - Google Patents
Cloth feeder of sewing machineInfo
- Publication number
- JPS6168078A JPS6168078A JP18907684A JP18907684A JPS6168078A JP S6168078 A JPS6168078 A JP S6168078A JP 18907684 A JP18907684 A JP 18907684A JP 18907684 A JP18907684 A JP 18907684A JP S6168078 A JPS6168078 A JP S6168078A
- Authority
- JP
- Japan
- Prior art keywords
- feed
- cloth
- shaft
- sewing machine
- feeding device
- 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.)
- Pending
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は下方布送り装置と上方布送り装置とを有する
ミシンの布速シ装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cloth speeding device for a sewing machine having a lower cloth feeding device and an upper cloth feeding device.
第６図は従来のこの種の布送り装置を示す斜視図であり
、□□□において、１はミシン機枠に回動可能に軸支さ
れた主軸で、その一端のグーリ２を介して公知手段によ
り駆動される。６は主軸１に嵌着された布送り系統の偏
心カムであり、この偏心カム６には伝動ロッド４の基端
眼環部が遊嵌されている。伝動ロッド４の先端部は縫目
調節機ａ７の掃勧り／り６に連動されている。FIG. 6 is a perspective view showing a conventional cloth feeding device of this type. driven by means. Reference numeral 6 denotes an eccentric cam of the cloth feeding system fitted to the main shaft 1, and a proximal eye ring portion of the transmission rod 4 is loosely fitted into the eccentric cam 6. The distal end of the transmission rod 4 is interlocked with the sweep/removal 6 of the stitch adjuster a7.
さらに詳しく述べると、縫目調節機構７は、主軸１に平
行する支軸９を介してミシン機枠に揺回動自在に支承さ
れ次縫目調節腕７Ａと、この縫目調節腕７Ａに支軸９と
の偏心位置で主軸１と平行する縫目調節ピン８を介して
揺回動自在に支承されｔ二叉状の揺動リンク６とを有し
、との揺動リンク６の二又腕部６ａ 、６ｂに主軸１と
平行する揺動ピン５を介して前記伝動ロッド４の先端部
が回動自在に連結されている。縫目調節腕７Ａは縫目調
節操作系統のリンク１６と調節カム１０を介して調節ダ
イヤル１５に連動させである６調節カム１０に主軸１に
平行する軸１３によってミシン機枠に回動可能に支持き
れているもので、主軸１と平行する端面に正送りカム面
１１と逆送りカム面１２が略Ｖ字状に形成されている。More specifically, the stitch adjustment mechanism 7 is rotatably supported on the sewing machine frame via a support shaft 9 parallel to the main shaft 1, and is supported by the next stitch adjustment arm 7A and this stitch adjustment arm 7A. It has a two-pronged swinging link 6 which is rotatably supported via a stitch adjustment pin 8 parallel to the main shaft 1 at an eccentric position with respect to the shaft 9, and a two-pronged swinging link 6 with The distal end of the transmission rod 4 is rotatably connected to the arms 6a and 6b via a swing pin 5 parallel to the main shaft 1. The stitch adjustment arm 7A is linked to the adjustment dial 15 through the link 16 of the stitch adjustment operation system and the adjustment cam 10, and is rotatable to the sewing machine frame by the six adjustment cams 10 and a shaft 13 parallel to the main shaft 1. It is fully supported, and has a normal feed cam surface 11 and a reverse feed cam surface 12 formed in a substantially V-shape on the end surface parallel to the main shaft 1.
調節ダイヤル１５は主軸１の軸線と直交する軸線のねじ
軸１４を有し、このねじ軸１４を支軸としてミシン機枠
の前面側からその内部にねじ込み調整自在に挿通した状
態に取付けられている。そして、前記ねじ軸１４の先端
は、リンク１６を常に上方へ付勢しているバネ１７の作
用で前記正送りカム面１１に常時当接している。The adjustment dial 15 has a screw shaft 14 whose axis is perpendicular to the axis of the main shaft 1, and is screwed into the sewing machine frame from the front side of the machine frame using the screw shaft 14 as a support shaft so as to be freely adjustable. . The tip of the screw shaft 14 is always in contact with the normal feed cam surface 11 due to the action of a spring 17 that always urges the link 16 upward.
１８は下方布送り装置で、主軸１に平行してミシン機枠
に回動可能に軸支された水平送り軸１８ａを有している
。この水平送り軸１８ａＫは、入力側送り腕２０と上方
布送り側出力腕２７と下方布送り側出力腕２２のそれぞ
れが嵌着されている。Reference numeral 18 denotes a downward cloth feeding device, which has a horizontal feeding shaft 18a that is parallel to the main shaft 1 and rotatably supported on the sewing machine frame. The horizontal feed shaft 18aK has an input side feed arm 20, an upper cloth feed side output arm 27, and a lower cloth feed side output arm 22 fitted therein.
下方布送り側出力腕２２には送り歯２３が連動させであ
る。そして、入力側送り腕２０には、縫目調節機構７の
揺動ピン５に一端が遊嵌され次伝動リンク１９の他端部
がピン２１で回動自在に連結されている。A feed dog 23 is interlocked with the lower cloth feed side output arm 22. One end of the input side feed arm 20 is loosely fitted into the swing pin 5 of the stitch adjustment mechanism 7, and the other end of the next transmission link 19 is rotatably connected to the input side feed arm 20 by a pin 21.
２６は上方布送り装置で、主軸１に平行してミシン機枠
に揺回動自在に支持された送り軸２６ａと、これに嵌着
された入力腕２８と、前記送り軸２６ａに一体連結され
た針棒支工２５とを有し、入力腕２８は前記上方布送り
側出力腕２７に伝動リンク２９を介して連動されている
。針棒支工２５は主軸１の回転時にクランク機構６６を
介して上下運動する針棒２４を支持している。Reference numeral 26 designates an upper cloth feed device, which includes a feed shaft 26a supported swingably on the sewing machine frame parallel to the main shaft 1, an input arm 28 fitted onto this, and integrally connected to the feed shaft 26a. The input arm 28 is interlocked with the upper cloth feed side output arm 27 via a transmission link 29. The needle bar support 25 supports the needle bar 24 which moves up and down via a crank mechanism 66 when the main shaft 1 rotates.
従来の布送り装置は上記のように構成さ几、調節ダイヤ
ル１５を操作してそのねじ込み量を調節すると、調節カ
ム１０の正送りカム面１１が軸１６を支点に回動し、こ
れにより縫目調節リンク１６を介して縫目調節腕７＆が
軸９を支点に揺回動しピン２１と揺動ビン５を結ぶ延長
線上より偏倚した位置に縫目調節ビン８が移行させられ
てその位置で保持されろ。The conventional cloth feeding device is constructed as described above, and when the adjustment dial 15 is operated to adjust the screwing amount, the normal feed cam surface 11 of the adjustment cam 10 rotates about the shaft 16, thereby sewing. The stitch adjustment arm 7& swings around the shaft 9 via the stitch adjustment link 16, and the stitch adjustment bin 8 is moved to a position offset from the extension line connecting the pin 21 and the swing bin 5. be held in
この状態において、主軸１が一方向に回動すると、偏心
カム乙の作用により伝動ロッド４を介して揺動ビン５が
縫目調節ビン８を支点に揺回動する。その揺回動によっ
てリンク１９に上下方向の運動が生じ入力側送り腕２０
を介して水平送り軸１８ａが揺回動する。この水平送り
軸１８ａの揺回動は送り歯２６に布送り水平運動を与え
る。又一方斜棒支工２５は、上方布送り側出力腕２７、
伝動リンク２９、入力腕２８を介して送り軸２６ａの軸
線を中心として揺回動し針棒２４を介して送り歯２６と
同調した布送りを行う０
即ち、ビン２１と揺動ピン２５の延長線より偏倚する位
置に回動する縫目調節ビン８の軸部９を中心とする回動
量に応じて、送り歯２６と同調して針棒２４の針送り量
が決まる０
〔発明が解決しようとする問題点〕
上記のような従来の布送り装置では、上方布送り装置２
６を下方送り装置１８に同調させる手段として上方布送
り装置２６の送りＪＡ ２６ ａを下方布送り装置１８
の送り軸１８ａに連動式せているので、針棒２４、針棒
支工２５、送り軸２６ａ。In this state, when the main shaft 1 rotates in one direction, the swing pin 5 swings around the stitch adjustment pin 8 via the transmission rod 4 due to the action of the eccentric cam O. The swinging motion causes the link 19 to move in the vertical direction, and the input side feed arm 20
The horizontal feed shaft 18a swings through. This swinging movement of the horizontal feed shaft 18a gives the feed dog 26 a horizontal cloth feed movement. On the other hand, the diagonal bar support 25 has an upper cloth feed side output arm 27,
The transmission link 29 swings around the axis of the feed shaft 26a via the input arm 28, and feeds the cloth in synchronization with the feed dog 26 via the needle bar 24. In other words, the bin 21 and the swing pin 25 are extended. The amount of needle feed of the needle bar 24 is determined in synchronization with the feed dog 26 according to the amount of rotation about the shaft portion 9 of the stitch adjustment bin 8, which rotates to a position deviating from the line. In the conventional cloth feeding device as described above, the upper cloth feeding device 2
As a means for synchronizing the feed JA 26a of the upper cloth feeder 26 with the lower cloth feeder 18,
The needle bar 24, needle bar support 25, and feed shaft 26a are interlocked with the feed shaft 18a.
入力腕２８、伝動リンク２９、上方布送り側出力腕２７
等の上方布速シ装置２６の揺回動負荷が送り歯２３を含
む下方布送り装置１８の揺回動負荷に加算して入力側送
り腕２０、ビン２１、伝動リンク１９等に加わるため、
これら部品の剛性を高める必要が生じそのため装置全体
が大形化し、高速性、耐久性が劣るなどの問題点があっ
た。これら欠点を克服するため上方布送り装置専用に縫
目調節腕７を含む縫目調節機構を配置するものもあるが
、この場合にあっても構成が複雑化し高価となるという
問題点かあつ念。Input arm 28, transmission link 29, upper cloth feed side output arm 27
Since the swinging load of the upper cloth speeding device 26 is added to the swinging load of the lower cloth feeding device 18 including the feed dog 23 and is applied to the input side feed arm 20, bin 21, transmission link 19, etc.
It became necessary to increase the rigidity of these parts, which led to problems such as an increase in the size of the entire device and a decrease in high speed and durability. In order to overcome these drawbacks, some devices are equipped with a stitch adjustment mechanism including a stitch adjustment arm 7 exclusively for the upper cloth feeding device, but even in this case, there is a problem that the configuration becomes complicated and expensive. .
この発明は、かかる問題点を解決するためになされたも
ので、下方布送り装置が下方布送り装置との同調を確保
しながら、上方布送り装置の揺回動負荷が下方布送り装
置の系統に作用しないミシンの布送り装置を得ることを
目的とする。This invention was made to solve this problem, and while ensuring the synchronization of the lower cloth feeder with the lower cloth feeder, the swinging load of the upper cloth feeder is reduced to the system of the lower cloth feeder. The purpose of the present invention is to obtain a cloth feeding device for a sewing machine that does not act on the fabric.
この発明に係るミシンの布送り装置は、縫目調節機構の
揺動リンクに上方布送り装置と下方布送り装置のそれぞ
れを個々に連動させたものである。In the cloth feeding device of a sewing machine according to the present invention, an upper cloth feeding device and a lower cloth feeding device are each individually linked to a swing link of a stitch adjustment mechanism.
この発明においては、揺動リンクの揺回動によジ上万重
送り装置と下万重送！ｌｌ装置のそれぞれが個々に直接
駆動式れろので、それら相互の揺回動負荷が加算さｎて
いずれか一方の重送ジ装置に集中作用するのが阻止され
ろ。In this invention, the swinging movement of the swinging link allows the upper and lower multi-layer feeding devices to be connected to each other. Since each of the devices is individually directly driven, their mutual swinging loads are prevented from adding up and acting concentratedly on either one of the multiple feeding devices.
以下、この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図はこの発明の一実施例を示す斜視図、第２図は第
１図を右側からみた要部の拡大側面図、第３図は第２図
の■−■線断面図、第４図および第５図は第２図の動作
説明図であり、上記従来装置との同一・狩号に同一部分
または相当部分を示す。Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is an enlarged side view of the main part of Fig. 1 seen from the right side, Fig. 3 is a sectional view taken along the line FIG. 5 and FIG. 5 are explanatory diagrams of the operation of FIG. 2, and the same or equivalent parts are indicated by the same symbols as those of the conventional device described above.
第１図〜第５図において、６０は上方布送り装置２６の
送り軸２６ａと揺動リンク６を連動している伝動リンク
で、その一端は前記送り軸２６ａの入力腕２８にビン６
１で、かつ他端は揺動ビン５にそれぞれ回動自在に連結
てれている０上記のように構成され友重送シ装置は、主
軸１の一方向回動により揺動リンク６が揺回動すると、
伝動リンク１９を介して水平送り軸１８が揺回動する。1 to 5, reference numeral 60 denotes a transmission link that interlocks the feed shaft 26a of the upper cloth feed device 26 and the swing link 6, one end of which connects the input arm 28 of the feed shaft 26a to the bin 6.
1, and the other end is rotatably connected to the swinging bin 5.0 In the double feeder constructed as described above, the swinging link 6 swings when the main shaft 1 rotates in one direction. When rotated,
The horizontal feed shaft 18 swings via the transmission link 19.
このことは上記従来装置でも述べたが、この場合の動作
を一層詳しく述べると、第４図において水平送り軸１８
が時計方向に揺回勅するとき（破線状態から実線状態）
図示しない公知の送り歯上下装置により送り歯２６が上
昇し、前記水平送９軸１８の時計方向回動により送り歯
２６が実効水平布送りを行い、水平送り軸１８が反時計
方向に揺回動するとき（実線状態から破線状態）図示し
ない公知の送り歯上下装置により送り歯２６は下降した
状態で送り歯２６の水平復帰を行う公知の４送り運動を
行う。This was also mentioned in the above conventional device, but to explain the operation in more detail in this case, the horizontal feed shaft 18 is shown in FIG.
When rotates clockwise (from broken line state to solid line state)
The feed dog 26 is raised by a known feed dog up/down device (not shown), the feed dog 26 performs effective horizontal cloth feed by clockwise rotation of the horizontal feed 9 shaft 18, and the horizontal feed shaft 18 swings counterclockwise. When moving (from the solid line state to the broken line state), the feed dog 26 performs a known four-feed movement in which the feed dog 26 is returned to the horizontal state in a lowered state by a known feed dog up-and-down device (not shown).
前述の揺動ビン５の揺回動によシ伝動リンク６０にも上
下方向の運動が生じこれにより送り軸２６ａが揺回動す
る。The above-mentioned swinging movement of the swinging bin 5 also causes the transmission link 60 to move in the vertical direction, thereby causing the feed shaft 26a to swing.
即ち第４図において針送り軸２６ａが反時計方向に回動
するとき（破線状態から実線状態へ）下降状態にある針
棒２４に針棒支工２５により前記送り歯２６が協働・同
調して実効針送り運動を行う０
送り軸２６ａが時計方向に揺回動するとき（実線状態か
ら破線状態）上昇状態にある針棒２４に、針棒支工２５
により水平復帰を行う第５図は公知の逆送り手動操作に
より調節ダイヤ／Ｌ／１５の先端と送り調節カム１０の
逆送りカム面１２に当接させたとき、縫目調節ビン８を
ビン２１と揺動ビン５を結ぶ延長線上よｆ）第２図に示
す反対側へ偏倚させた逆送り状態となろ０
なお、上記実施例では上方布送り装置として針送り装置
を備えたミシンについて示したが針送り装置以外の上方
布送り装置と下方布送り装置を備えたミシンに実施して
もよい０
〔発明の効果〕
この発明は以上説明したとおり、縫目調節機構の揺動リ
ンクに上方布送り装置と下方布送り装置のそれぞれを個
々に連動させたので、それらの布速り装置を前記揺動リ
ンクの揺回動で個々に直接駆動させることができ、この
ため、両方の布速り装置の同調を確保しながら、それら
の布速り装置相互の揺回動負荷が加算きれて一方の布速
り装置に集中作用するようなことがなくなる０従って、
前記各布速り装置の部品剛性を前記負荷に対応させるべ
く高める必要がなく、装置全体を小型化できて高速性、
耐久性が得られるなどの効果がある。That is, in FIG. 4, when the needle feed shaft 26a rotates counterclockwise (from the broken line state to the solid line state), the feed dog 26 cooperates and synchronizes with the needle bar 24 in the lowered state by the needle bar support 25. 0 When the feed shaft 26a swings clockwise (from the solid line state to the broken line state), the needle bar support 25 moves to the needle bar 24 in the raised state.
In FIG. 5, when the tip of the adjustment dial L/15 is brought into contact with the reverse feed cam surface 12 of the feed adjustment cam 10 by a known reverse feed manual operation, the stitch adjustment bin 8 is moved to the bin 21. f) On the extension line connecting the oscillating bin 5 with This invention may be implemented in a sewing machine equipped with an upper cloth feeder and a lower cloth feeder other than the needle feeder. Since the feeding device and the downward cloth feeding device are individually linked, these cloth speeding devices can be individually and directly driven by the swinging movement of the swinging link, and therefore both cloth speeds can be directly driven. While ensuring the synchronization of the devices, the oscillating loads of the cloth speeding devices can be added together, and the concentrated effect on one cloth speeding device can be avoided.
There is no need to increase the rigidity of the parts of each of the cloth speeding devices in order to cope with the load, and the entire device can be made smaller and faster.
It has the effect of increasing durability.
篇１図はこの発明の一実施例を示す斜視図、第２図は第
１図の右側からみた要部の拡大側面図、第８図は第２図
の［−１１［線断面図、第４図および第５図は第２図の
動作説明図、第６図は従来例を示す斜視図である。
１は主軸、６は揺動リンク、７は縫目調節機構、１８は
下方布送り装置、２６は上方布送り装置。
なお、各図中同一符号は同一または相当部分を示す。Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is an enlarged side view of the main parts seen from the right side of Fig. 1, and Fig. 8 is a sectional view taken along the line [-11] of Fig. 2. 4 and 5 are explanatory diagrams of the operation of FIG. 2, and FIG. 6 is a perspective view showing a conventional example. 1 is a main shaft, 6 is a swing link, 7 is a stitch adjustment mechanism, 18 is a lower cloth feeder, and 26 is an upper cloth feeder. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (2)
クを有する縫目調節機構と、その揺動リンクに伝動リン
クを介して連動させた下方布送り装置と、この下方布送
り装置に同調作動させる上方布送り装置とを備えたミシ
ンの布送り装置において、上方布送り装置を縫目調節機
構の揺動リンクに連動させたことを特徴とするミシンの
布送り装置。(1) A main shaft of the sewing machine, a stitch adjustment mechanism having a swing link linked to the main shaft, a downward cloth feed device linked to the swing link via a transmission link, and What is claimed is: 1. A cloth feeding device for a sewing machine comprising an upper cloth feeding device that operates in synchronization, the upper cloth feeding device being interlocked with a swing link of a stitch adjustment mechanism.
送り軸を有し、これらの送り軸に嵌着された送り腕と縫
目調節機構の揺動リンクの自由端側とが共に伝動リンク
で連結されていることを特徴とする特許請求の範囲第１
項記載のミシンの布送り装置。(2) The upper cloth feed device and the lower cloth feed device each have a horizontal feed shaft, and the feed arm fitted on these feed shafts and the free end side of the swing link of the stitch adjustment mechanism are both transmission links. The first claim characterized in that
Cloth feeding device of the sewing machine mentioned in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18907684A JPS6168078A (en) | 1984-09-10 | 1984-09-10 | Cloth feeder of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18907684A JPS6168078A (en) | 1984-09-10 | 1984-09-10 | Cloth feeder of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6168078A true JPS6168078A (en) | 1986-04-08 |
Family
ID=16234902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18907684A Pending JPS6168078A (en) | 1984-09-10 | 1984-09-10 | Cloth feeder of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003024671A (en) * | 2001-07-19 | 2003-01-28 | Juki Corp | Needle feeding sewing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4413821Y1 (en) * | 1966-02-09 | 1969-06-10 | ||
| JPS5613897U (en) * | 1979-07-04 | 1981-02-05 |
-
1984
- 1984-09-10 JP JP18907684A patent/JPS6168078A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4413821Y1 (en) * | 1966-02-09 | 1969-06-10 | ||
| JPS5613897U (en) * | 1979-07-04 | 1981-02-05 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003024671A (en) * | 2001-07-19 | 2003-01-28 | Juki Corp | Needle feeding sewing machine |
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