JPH01111581U - - Google Patents
Info
- Publication number
- JPH01111581U JPH01111581U JP736688U JP736688U JPH01111581U JP H01111581 U JPH01111581 U JP H01111581U JP 736688 U JP736688 U JP 736688U JP 736688 U JP736688 U JP 736688U JP H01111581 U JPH01111581 U JP H01111581U
- Authority
- JP
- Japan
- Prior art keywords
- drive roller
- needle
- needle thread
- upper thread
- thread
- 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 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
図面は本考案の一実施例を示すもので、第１図
は自動上糸供給装置の上面図、第２図は上記自動
上糸供給装置が組込まれたミシンの外観正面図、
第３図は上記自動上糸供給装置の電気的構成を示
すブロツク図である。
図中、２２は針、３０は天秤、４８はパルスモ
ータ、５８は駆動ローラ、７０は従動ローラ、８
２は上糸、９０は制御装置である。
The drawings show an embodiment of the present invention; FIG. 1 is a top view of an automatic needle thread supply device, FIG. 2 is an external front view of a sewing machine incorporating the automatic needle thread supply device, and FIG.
FIG. 3 is a block diagram showing the electrical configuration of the automatic needle thread supply device. In the figure, 22 is a needle, 30 is a balance, 48 is a pulse motor, 58 is a driving roller, 70 is a driven roller, 8
2 is an upper thread, and 90 is a control device.
Claims (1)
に至る上糸経路中の上糸供給源と上糸取上装置３
０との間に設けられ、前記上糸供給源から上糸取
上装置３０に向つて上糸８２を供給するために、
前記上糸経路中に設けられた駆動ローラ５８と、 その駆動ローラ５８に作動的に連結され駆動ロ
ーラ５８を回転させる駆動手段４８と、 前記駆動ローラ５８に前記上糸８２を押圧する
ために、駆動ローラ５８に向つて付勢させる複数
の従動ローラ７０，７０と、 加工布上に縫目を形成するために必要な上糸供
給量を前記駆動ローラ５８の回転量として演算し
、その演算結果に従つて前記駆動ローラ５８が回
転するように前記針２２の上下運動と同期して、
前記駆動手段４８へ電力供給を行うための制御手
段９０と、 を備えたことを特徴とするミシンの自動上糸供
給装置。[Scope of claim for utility model registration] From the needle thread supply source to the needle 22 via the needle thread take-up device 30
Needle thread supply source and needle thread take-up device 3 in the needle thread path leading to
0, for supplying the upper thread 82 from the upper thread supply source to the upper thread take-up device 30,
a drive roller 58 provided in the upper thread path; a drive means 48 operatively connected to the drive roller 58 for rotating the drive roller 58; and for pressing the upper thread 82 against the drive roller 58. A plurality of driven rollers 70, 70 are urged toward the drive roller 58, and the needle thread supply amount necessary to form a stitch on the work cloth is calculated as the rotation amount of the drive roller 58, and the calculation result is calculated. synchronously with the vertical movement of the needle 22 so that the drive roller 58 rotates accordingly;
An automatic needle thread supply device for a sewing machine, comprising: a control means 90 for supplying power to the drive means 48.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP736688U JPH01111581U (en) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP736688U JPH01111581U (en) | 1988-01-22 | 1988-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01111581U true JPH01111581U (en) | 1989-07-27 |
Family
ID=31212316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP736688U Pending JPH01111581U (en) | 1988-01-22 | 1988-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01111581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6167826B1 (en) | 1998-04-20 | 2001-01-02 | Brother Kogyo Kabushiki Kaisha | Device for supplying upper thread of sewing machine |
-
1988
- 1988-01-22 JP JP736688U patent/JPH01111581U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6167826B1 (en) | 1998-04-20 | 2001-01-02 | Brother Kogyo Kabushiki Kaisha | Device for supplying upper thread of sewing machine |
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