JPS598693Y2 - Balance drive adjustment device - Google Patents
Balance drive adjustment deviceInfo
- Publication number
- JPS598693Y2 JPS598693Y2 JP1979073299U JP7329979U JPS598693Y2 JP S598693 Y2 JPS598693 Y2 JP S598693Y2 JP 1979073299 U JP1979073299 U JP 1979073299U JP 7329979 U JP7329979 U JP 7329979U JP S598693 Y2 JPS598693 Y2 JP S598693Y2
- Authority
- JP
- Japan
- Prior art keywords
- thread
- take
- tension
- guide section
- upper shaft
- 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
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
この考案はミシンに用いられる天秤の駆動調節装置（ご
関するものである。[Detailed description of the invention] This invention relates to a drive adjustment device for a take-up lever used in a sewing machine.
二本環縫いすくい縫いミシン等においてルーパ糸と針糸
とのタイミングを天秤によってとりながら、ルーパ糸を
引きだしたリルーパ糸にはりやたるみを与えて糸の目飛
びや糸切れ等を防止していることは周知で゛ある。In a double chain stitch blind stitch sewing machine, etc., the timing of the looper thread and needle thread is controlled by a balance, and the relooper thread that is pulled out of the looper thread is given tension and slack to prevent thread skipping and thread breakage. This is well known.
この考案はミシンの上軸に装着したコロによって上軸の
回転運動をクランクを介して天秤の往復運動に換え、か
つこの天秤に張られる糸の張り経路の位置を糸が天秤に
かけられる前後において容易に変更しうるようになし、
もって適度な糸の張りおよび弛みを設定しうる天秤の駆
動調節装置を提供することを目的とする。This idea uses rollers attached to the upper shaft of the sewing machine to convert the rotational movement of the upper shaft into reciprocating motion of the thread take-up via a crank, and the position of the tension path for the thread on the thread take-up can be easily adjusted before and after the thread is put on the thread take-up. so that it can be changed to
It is an object of the present invention to provide a drive adjustment device for a thread take-up that can set appropriate thread tension and slack.
以下この考案による天秤の駆動調節装置の一実施例を図
面にもとづき説明する。An embodiment of the balance drive adjustment device according to this invention will be described below with reference to the drawings.
図中符号１はミシンの上軸を示し、この上軸１の所定位
置には上軸１の回転に従って回転運動するカム２が装置
されている。Reference numeral 1 in the figure indicates an upper shaft of the sewing machine, and a cam 2 that rotates as the upper shaft 1 rotates is provided at a predetermined position on the upper shaft 1. As shown in FIG.
また、上軸１の上軸ケース（アーム）３には固定板４が
とりつけられ、この固定板４の端部の枢軸５には一側を
回動可能に軸支されて他側を上軸ケース３の切欠部６を
径て前記カム２に係合するクランク７が設けられている
。Further, a fixed plate 4 is attached to the upper shaft case (arm) 3 of the upper shaft 1, and one side is rotatably supported on a pivot shaft 5 at the end of the fixed plate 4, and the other side is rotatably supported on the upper shaft. A crank 7 is provided that extends through a notch 6 of the case 3 and engages with the cam 2.
このクランク７の前記一側の先端所定位置にはカム２と
の接触面に潤滑油等を供給する油供給｛Ｌ２５が形威さ
れるとともに、この油供給孔２５に外部より油を注入す
るための注入孔２６が上軸ケース３の所定位置に設けら
れている。An oil supply {L25 for supplying lubricating oil etc. to the contact surface with the cam 2 is formed at a predetermined position at the tip of the one side of the crank 7, and an oil supply hole 25 is provided for injecting oil from the outside. An injection hole 26 is provided at a predetermined position in the upper shaft case 3.
さらに、クランク７に一体に設けられた取付板８には天
秤９がその下端部に形或された長孔１０を介してビス１
１止めされている。Furthermore, a thread take-up lever 9 is attached to a mounting plate 8 integrally provided with the crank 7 through a long hole 10 formed at its lower end.
1 is stopped.
天秤９の先端部は、上軸ケース３の上方に突出した位置
でクランク７の往復運動の一方向に向けて折曲されてい
る。The distal end of the balance 9 is bent toward one direction of the reciprocating motion of the crank 7 at a position protruding above the upper shaft case 3.
この天秤９の先端は、往復運動の一方側に開口するよう
に切り欠かれ、係止部１２とされている。The tip of the balance 9 is cut out to open on one side of the reciprocating movement, and serves as a locking portion 12.
この係止部１２は、後述する糸案内部によって掛け渡さ
れる糸を、天秤の運動方向に向けて突くものである。This locking part 12 is used to poke a thread that is stretched by a thread guide part, which will be described later, in the direction of movement of the thread take-up.
一方、互いに対向するように新曲された折曲面１３．１
３に糸孔１４，１４をそれぞれ形威した断面コ字状の糸
案内部１５を一側に有し、糸孔１６を設けた突条部１７
を他側に有するとともにこの突条部１７の近傍に貫通孔
１８を形戊した調節部材１９は、上記上軸ケース３にと
りつけた糸調子２０の糸調子軸２１に上記貫通孔１８が
嵌め込まれ、この糸調子軸２１を支点として回動自在に
とりつけられている。On the other hand, newly curved bent surfaces 13.1 facing each other
3 has thread guide parts 15 each having a U-shaped cross section in the form of thread holes 14, 14 on one side, and a protruding part 17 provided with thread holes 16.
The adjustment member 19 has a through hole 18 formed in the vicinity of the protrusion 17 on the other side, and the through hole 18 is fitted into the thread tension shaft 21 of the thread tension 20 attached to the upper shaft case 3. , is rotatably mounted around this thread tension shaft 21 as a fulcrum.
このとき調節部材１９の案内部１５は天秤９の係止部１
２に跨るように配設される。At this time, the guide portion 15 of the adjusting member 19 is connected to the locking portion 1 of the balance 9.
It is arranged so as to straddle the two.
これによって糸案内部１５の２個の糸孔１４，１４は、
天秤９の係止部１２の左右に配置される。As a result, the two thread holes 14, 14 of the thread guide section 15 are
They are arranged on the left and right sides of the locking portion 12 of the balance 9.
そしてこの糸案内部１５は、糸調子軸２１を支点として
調整部材１９を回動ずると、上記クランク７による天秤
９の、第４図中矢印Ｂで示す往復運動の方向に略沿って
、第４図中矢印Ｂで示すように移動される。When the adjusting member 19 is rotated about the thread tension shaft 21 as a fulcrum, the thread guide section 15 moves approximately along the direction of the reciprocating movement of the thread take-up lever 9 by the crank 7, as shown by the arrow B in FIG. It is moved as shown by arrow B in Figure 4.
また糸調子軸２１の廻りに回動する調節部材１９の回動
量を指示させるために、調節部材１９の所定部には針状
の指示部２３が一体に形戊さ１れるとともにこの指示部
２３に対応した位置の上軸ケース３に目盛板２４が設け
られている。Further, in order to indicate the amount of rotation of the adjusting member 19 that rotates around the thread tension shaft 21, a needle-shaped indicating portion 23 is integrally formed in a predetermined portion of the adjusting member 19. A scale plate 24 is provided on the upper shaft case 3 at a position corresponding to .
なお、糸調子軸２１には周知のように調節ナット２２が
螺合され糸調子軸２１内にはめこまれたバネ（図示せず
）を介して糸調子２０を調節するとともに上記調節部材
１９を回動可能にとりつけているものである。As is well known, an adjustment nut 22 is screwed onto the thread tension shaft 21, and the thread tension 20 is adjusted via a spring (not shown) fitted into the thread tension shaft 21, and the adjustment member 19 is It is attached so that it can rotate.
以上の構或を有する天秤の駆動調節装置の一実施例につ
きその作用を説明する。The operation of one embodiment of the balance drive adjustment device having the above structure will be explained.
まず、糸巻きの糸を調節部材１９の突条部１７に形或さ
れた糸孔１６に挿通し、この糸の先端を糸調子２０を介
して調節部材１９の糸孔１４（第１図において右側の糸
孔）に通して係止部１２にかけわたしさらに図において
左側の糸孔１４に通す。First, the thread of the bobbin is inserted into the thread hole 16 formed on the protrusion 17 of the adjusting member 19, and the tip of this thread is passed through the thread tension 20 to the thread hole 14 of the adjusting member 19 (on the right side in FIG. Thread it through the thread hole 14 on the left side in the figure, hang it over the locking part 12, and then pass it through the thread hole 14 on the left side in the figure.
この糸を針棒ケースを径由してルーパに通しておく。This thread is passed through the needle bar case and passed through the looper.
その後ミシンの上軸１を回転させると上軸１に一体的に
とりつけられたカム２も上軸１の回転とともに回転し、
このカムに連動するクランク７を枢軸５の廻りに往復運
動させる。Then, when the upper shaft 1 of the sewing machine is rotated, the cam 2 integrally attached to the upper shaft 1 also rotates with the rotation of the upper shaft 1.
A crank 7 interlocked with this cam is caused to reciprocate around a pivot shaft 5.
クランク７に取り付けられた天秤９は、これに従って往
復運動し、天秤９の係止部１２は、ここに掛け渡された
糸を、その往復運動方向の一方に向けて突き、周知のよ
うに縫針の作動と連動してたるましたりあるいは張った
りする。The thread take-up 9 attached to the crank 7 reciprocates in accordance with this, and the locking part 12 of the thread take-up 9 thrusts the thread stretched therein in one direction of the reciprocating movement, as is well known in the art. It sag or tighten in conjunction with the operation of.
この際、糸の張りを増すには調節部材１９を貫通孔１８
のまわりに第１図において反時計方向に回動させて第４
図に矢印Ａにて示される天秤９の係止部１２の往復運動
方向Ａに略沿って糸案内部１５を移動し、糸案内部１５
の糸孔１４，１４と、往復運動する係止部１２の一方の
移動限位置（この例にあっては、第３図中左方の位置）
との相対位置を近づければ良〈、逆の場合即ち糸のたる
みを増すには調節部材１９を第１図において時計方向に
回動さして遠ざければよい。At this time, in order to increase the tension of the thread, the adjusting member 19 is inserted into the through hole 18.
Rotate counterclockwise in Figure 1 around the 4th
The thread guide section 15 is moved approximately along the reciprocating direction A of the locking section 12 of the thread take-up lever 9, which is indicated by the arrow A in the figure.
The thread holes 14, 14 and one of the movement limit positions of the reciprocating locking part 12 (in this example, the left position in FIG. 3)
In the opposite case, that is, to increase the slack of the thread, the adjusting member 19 can be rotated clockwise in FIG. 1 to move it away.
この調節部材１９の回動量は指示部２３が示す目盛板２
４の目盛によって確認することができる。The amount of rotation of the adjustment member 19 is determined by the scale plate 2 indicated by the indicator 23.
It can be confirmed by the scale of 4.
このような構造の天秤駆動調整装置にあっては、往復運
動する天秤９の先端部に係止部１２を設け、この係止部
１２によって、ここに掛け渡され糸を天秤の運動方向の
一方に向けて突くようになし、さらにこの係止部１２に
糸を掛け渡す調節部材１９の糸案内部１５を、天秤９の
往復運動方向に略沿って移動可能としたので、糸の張り
、たるみの調節が、糸案内部１５を移動して、糸案内部
１５の糸孔１４，１４と往復運動する係止部１２の一方
の移動限位置との相対位置を近づけあるいは遠ざけるこ
とで、容易に行える。In the lever drive adjustment device having such a structure, a locking portion 12 is provided at the tip of the take-up lever 9 that moves reciprocatingly, and the locking portion 12 allows the thread to be suspended in one direction in the movement direction of the take-up. Furthermore, the thread guide section 15 of the adjusting member 19, which threads the thread around the locking section 12, is movable approximately in the direction of the reciprocating movement of the thread take-up 9, thereby reducing the tension and slack of the thread. can be easily adjusted by moving the thread guide section 15 to bring the relative positions of the thread holes 14, 14 of the thread guide section 15 closer or further away from the movement limit position of one of the reciprocating locking sections 12. I can do it.
また、糸調子軸２１に回動可能に取り付けられた調節部
材１９の一側に、天秤９の係止部１２に糸を案内する糸
案内部１５を設け、これによって糸案内部１５が天秤９
の往復運動方向Ａに略沿って移動可能となるようになし
たので、糸の張りあるいはたるみを縫合される布、革等
の材質、厚さなどに応じて調節するために、糸案内部１
５の位置を移動するには、調節部材１９を糸調子軸２１
を支点として回動すれば良い。Further, a thread guide section 15 for guiding the thread to the locking section 12 of the thread take-up lever 9 is provided on one side of the adjustment member 19 rotatably attached to the thread tension shaft 21, so that the thread guide section 15 is connected to the thread take-up lever 9.
Since the thread guide section 1 can be moved substantially along the reciprocating direction A of the thread guide section 1, the tension or slack of the thread can be adjusted according to the material and thickness of the cloth, leather, etc.
To move the adjusting member 19 to the position 5, move the adjusting member 19 to the thread tension shaft 21.
All you have to do is rotate using it as a fulcrum.
しかも、調節部材１９は、糸調子軸２１のみによって回
動可能に支持されているので、調節部材１９０回動は、
ドライバー等の工具を用いずに、片手で、ワンタッチで
容易に行うことができる。Moreover, since the adjustment member 19 is rotatably supported only by the thread tension shaft 21, the rotation of the adjustment member 190 is as follows.
It can be easily done with one touch without using any tools such as a screwdriver.
このため、糸の張りあるいはたるみの調節が、適時、例
えば運針中でも、短時間で容易に行える。Therefore, the tension or slack of the thread can be easily adjusted in a short period of time, for example, while the needle is moving.
さらに指示部２３と目盛板２４を設けたので、その再現
も良好なものとなる。Furthermore, since the indicator 23 and scale plate 24 are provided, the reproduction is also good.
また、調節部材１９を、その一側の糸案内部１５と、こ
の糸案内部１５に糸を導く他側の糸孔１６との間で、糸
調子２０が配置′される糸調子軸２１に嵌め込む構造な
ので、糸の張りあるいはたるみを調節するために、糸案
内部１５を所望角度移動させても、糸調子２０を中心に
糸孔１６も同一角度移動する。Further, the adjusting member 19 is attached to a thread tension shaft 21 on which the thread tension 20 is disposed between the thread guide section 15 on one side and the thread hole 16 on the other side that guides the thread to the thread guide section 15. Because of the fitting structure, even if the thread guide section 15 is moved by a desired angle in order to adjust the tension or slack of the thread, the thread hole 16 will also move by the same angle around the thread tension 20.
このため糸調子２０に掛ける糸の距離は変化せず、従っ
て、糸案内部１５を移動して糸の張り、たるみを調節し
ても、糸調子２１によって与えられる糸のテンションは
一定に保たれるので、糸調子２１を再調整する必要がな
い。Therefore, the distance of the thread applied to the thread tension 20 does not change, and therefore, even if the thread guide section 15 is moved to adjust the tension and slack of the thread, the thread tension given by the thread tension 21 remains constant. Therefore, there is no need to readjust the thread tension 21.
さらに、調節部材１９と糸調子２０とは、同一の糸調子
軸２１に取付けられるので、これらを組み立てた後、上
軸ケース３に取り付けることができる。Furthermore, since the adjusting member 19 and the thread tension 20 are attached to the same thread tension shaft 21, they can be attached to the upper shaft case 3 after being assembled.
従って、糸調子２０の高さと、糸孔１４，１４．１６の
高さとの調整作業を、上軸ケース３に取り付ける前に行
なうことができる。Therefore, the height of the thread tension 20 and the height of the thread holes 14, 14, 16 can be adjusted before being attached to the upper shaft case 3.
このため、従来のように、上軸ケース３等に糸調子や、
これに糸を案内する部材を別々に取り付けた後これら相
互の位置を調整するといった作業を行う必要がなくなり
、ミシンの組立工程を簡素化することができる。For this reason, as in the past, the thread tension is adjusted on the upper shaft case 3, etc.
There is no need to separately attach thread guiding members to this and then adjust their relative positions, thereby simplifying the assembly process of the sewing machine.
以上説明したように、この考案の天秤の駆動調整装置は
、ミシンの上軸の回転に連動して往復運動せしめられる
天秤の先端部に天秤の運動方向に糸を突く係止部を設け
ると共に、この係止部に糸を送り出す糸孔と係止部を通
過した糸を受ける糸孔とを上記天秤の係止部の左右に配
する断面コ字状の糸案内部を一側に有し、他側にこの糸
案内部に糸を導くための糸孔が設けられた突条部を有す
る略長杆状の調節部材を、上記糸案内部が上記天秤の運
動方向に略沿って移動可能となるように、上記突条部近
傍において、糸調子を装着する糸調子軸に回動可能に取
り付けたものなので、調節部材を回動して糸案内部を移
動することによって、糸の張りやたるみ具合の調節が容
易に短時間で行える。As explained above, the take-up lever drive adjustment device of this invention is provided with a locking part that thrusts the thread in the direction of movement of the take-up lever at the tip of the take-up lever, which is caused to reciprocate in conjunction with the rotation of the upper shaft of the sewing machine. A thread guide portion having a U-shaped cross section is provided on one side, and a thread hole for feeding the thread to the locking portion and a thread hole for receiving the thread passing through the locking portion are arranged on the left and right sides of the locking portion of the thread take-up; The thread guide part is movable substantially along the movement direction of the thread take-up lever, and the thread guide part is movable substantially along the movement direction of the thread take-up. Since the thread tensioner is rotatably attached to the thread tension shaft near the protrusion, the tension and slack of the thread can be adjusted by rotating the adjustment member and moving the thread guide part. Conditions can be easily adjusted in a short time.
しかも、調節部材を糸調子軸を支点に回動可能としたの
で、糸案内部を移動しても糸調子を再調節する必要がな
い。Furthermore, since the adjusting member is rotatable about the thread tension shaft, there is no need to readjust the thread tension even if the thread guide section is moved.
さらにこの天秤の駆動調整装置を組立て、調整した後、
ミシンアームに組み付けることができるので、ミシンの
組立工程を簡素化し得る等の種々の効果を有するもので
ある。Furthermore, after assembling and adjusting the drive adjustment device for this balance,
Since it can be assembled to the sewing machine arm, it has various effects such as simplifying the assembly process of the sewing machine.
第１図はこの考案の天秤の駆動調節装置をミシンにとり
つけた一実施例を示す平面図、第２図は同じく第１図の
ＩＩ − ＩＩ線に沿う断面図、第３図は第２図のＩＩ
Ｉ−ＩＩＩ線に沿う断面図、第４図は天秤の係止部と調
節部材の折曲部との位置関係を示す斜視図である。
１・・・・・・上軸、３・・・・・・上軸ケース（アー
ム）、９・・・・・・天秤、１２・・・・・・係止部、
１４・・・・・・糸孔、１５・・・・・・糸案内部、１
６・・・・・・糸孔、１７・・・・・・突条部、１８・
・・・・・貫通孔、１９・・・・・・調節部材、２０・
・・・・・糸調子、２１・・・・・・糸調子軸 Ａ・・
・・・・・往復運動方向。Fig. 1 is a plan view showing an embodiment of the lever drive adjustment device of this invention attached to a sewing machine, Fig. 2 is a sectional view taken along line II-II of Fig. 1, and Fig. 3 is a cross-sectional view of Fig. 2. II
FIG. 4 is a cross-sectional view taken along the line I-III, and a perspective view showing the positional relationship between the locking portion of the balance and the bent portion of the adjusting member. 1... Upper shaft, 3... Upper shaft case (arm), 9... Balance, 12... Locking part,
14... Thread hole, 15... Thread guide section, 1
6... Thread hole, 17... Projection, 18.
...Through hole, 19...Adjustment member, 20.
...Thread tension, 21...Thread tension axis A...
・・・・・・Direction of reciprocating motion.
Claims (1)
秤の先端部に天秤の運動方向に糸を突く係止部を設ける
と共に、この係止部に糸を送り出す糸部と係止部を通過
した糸を受ける糸孔とを上記天秤の係止部の左右に配す
る断面コ字状の糸案内部を一側に有し、他側にこの糸案
内部に糸を導くための糸孔が設けられた突条部を有する
略長杆状の調節部材を、上記糸案内部が上記天秤の運動
方向に略沿って移動可能とするように、上記突条部近傍
において、糸調子を装着する糸調子軸に回動可能に取り
付けたことを特徴とする天秤の駆動調節装置。The tip of the thread take-up, which is caused to reciprocate in conjunction with the rotation of the upper shaft of the sewing machine, is provided with a locking part that thrusts the thread in the direction of movement of the thread. A thread guide section having a U-shaped cross section is provided on one side, and a thread hole for receiving the thread is arranged on the left and right sides of the locking section of the thread take-up, and a thread hole is provided on the other side for guiding the thread to the thread guide section. A thread tensioner is attached to a substantially long rod-shaped adjustment member having a protrusion in the vicinity of the protrusion so that the thread guide section can move substantially along the movement direction of the thread take-up. A drive adjustment device for a take-up lever, characterized in that it is rotatably attached to a thread tension shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979073299U JPS598693Y2 (en) | 1979-05-31 | 1979-05-31 | Balance drive adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979073299U JPS598693Y2 (en) | 1979-05-31 | 1979-05-31 | Balance drive adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55172172U JPS55172172U (en) | 1980-12-10 |
| JPS598693Y2 true JPS598693Y2 (en) | 1984-03-17 |
Family
ID=29306914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979073299U Expired JPS598693Y2 (en) | 1979-05-31 | 1979-05-31 | Balance drive adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS598693Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0333341Y2 (en) * | 1986-01-22 | 1991-07-15 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4873052U (en) * | 1971-12-16 | 1973-09-12 | ||
| JPS51139045U (en) * | 1975-04-30 | 1976-11-09 |
-
1979
- 1979-05-31 JP JP1979073299U patent/JPS598693Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55172172U (en) | 1980-12-10 |
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