JPS62139481U - - Google Patents
Info
- Publication number
- JPS62139481U JPS62139481U JP2893286U JP2893286U JPS62139481U JP S62139481 U JPS62139481 U JP S62139481U JP 2893286 U JP2893286 U JP 2893286U JP 2893286 U JP2893286 U JP 2893286U JP S62139481 U JPS62139481 U JP S62139481U
- Authority
- JP
- Japan
- Prior art keywords
- release
- sewing
- thread
- resistance
- apply
- 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
- 238000009958 sewing Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009964 serging Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
第１図ａはこの発明の一実施例を示す図、第１
図ｂは第１図ａに示す糸調子器１０６の分解斜視
図、第２図は本考案の孔かがりミシンにおける上
糸掛けの一例を示す図、第３図は第１の縫い目形
成に用いる糸緩め押し棒駆動カムの一例を示す図
、第４図は従来の孔かがりミシンにおける上糸掛
けの一例を示す図、第５図は従来の糸ゆるめ機構
の要部斜視図、第６図ａおよびｂは第１の縫目お
よび第２の縫目の平面図である。
FIG. 1a is a diagram showing an embodiment of the present invention.
Fig. b is an exploded perspective view of the thread tension device 106 shown in Fig. 1a, Fig. 2 is a view showing an example of needle threading in the overlock sewing machine of the present invention, and Fig. 3 is a thread used to form the first seam. FIG. 4 is a diagram showing an example of the needle threading in a conventional overlocking sewing machine; FIG. 5 is a perspective view of a main part of the conventional thread loosening mechanism; FIG. 6a and b is a plan view of the first stitch and the second stitch.
Claims (1)
部とからなる所定縫目数のボタン孔を形成するボ
タン孔かがりミシンにおいて、 上糸に抵抗を付与／解除するように作動可能と
した第１糸調子器４と、第１糸調子器よりも弱い
抵抗を上糸に付与／解除するように作動可能とし
た第２，第３糸調子器２，１０６と、上糸への抵
抗をボタン孔の種類に応じて閂止め部の縫製時に
付与又は解除し停止時は解除するように第１糸調
子器を作動する第１タイミング制御手段Ｕ１と、
上糸への抵抗を縫製時に付与し停止時は解除する
ように第２糸調子器を作動する第２タイミング制
御手段Ｕ２と、上糸への抵抗をボタン孔の種類に
応じて閂止め部の縫製時に付与又は解除し停止時
は解除するように第３糸調子器を作動する第３タ
イミング制御手段Ｕ３とを設けたことを特徴とす
るボタン孔かがりミシンの上糸張力調節装置。[Scope of Claim for Utility Model Registration] A buttonhole sewing machine that forms a buttonhole with a predetermined number of stitches consisting of a parallel part and a bartacking part by controlling the swinging of the needle and the fabric feed, which provides resistance to the upper thread. A first thread tension device 4 operable to apply/release resistance, and second and third thread tension devices 2 operable to apply/release resistance to the upper thread, which is weaker than the first thread tension device. , 106, and a first timing control means U1 for operating a first thread tension device so as to apply or release resistance to the upper thread when sewing a bar tacking portion depending on the type of buttonhole, and release it when sewing is stopped. ,
a second timing control means U2 that operates a second thread tension device to apply resistance to the upper thread during sewing and release it when sewing is stopped; and a bar tacking unit that applies resistance to the upper thread according to the type of buttonhole. A needle thread tension adjusting device for a buttonhole sewing machine, characterized in that a third timing control means U3 is provided for operating a third thread tension device so as to apply or release tension during sewing and release it when sewing is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2893286U JPS62139481U (en) | 1986-02-28 | 1986-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2893286U JPS62139481U (en) | 1986-02-28 | 1986-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62139481U true JPS62139481U (en) | 1987-09-02 |
Family
ID=30832351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2893286U Pending JPS62139481U (en) | 1986-02-28 | 1986-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62139481U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53111858A (en) * | 1977-03-11 | 1978-09-29 | Brother Ind Ltd | Device for pulling upper yarn of button holding machine |
-
1986
- 1986-02-28 JP JP2893286U patent/JPS62139481U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53111858A (en) * | 1977-03-11 | 1978-09-29 | Brother Ind Ltd | Device for pulling upper yarn of button holding machine |
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