JPS56129584A - Speed controlling device for motor on sewing machine - Google Patents
Speed controlling device for motor on sewing machineInfo
- Publication number
- JPS56129584A JPS56129584A JP3152780A JP3152780A JPS56129584A JP S56129584 A JPS56129584 A JP S56129584A JP 3152780 A JP3152780 A JP 3152780A JP 3152780 A JP3152780 A JP 3152780A JP S56129584 A JPS56129584 A JP S56129584A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- turned
- output
- sewing machine
- time
- 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 title abstract 3
- 230000000994 depressogenic effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Sewing Machines And Sewing (AREA)
- Motor And Converter Starters (AREA)
Abstract
PURPOSE:To increase the working efficiency for the subject sewing machine by a method wherein the sewing machine is driven at the low speed set in advance for the fixed period of time immediately after the start or stop switch is depressed. CONSTITUTION:When an ON position is given to a power source switch 2, the output 14 of a J-K flip-flop 61 goes up to a high level. Consequently, transistors 53 and 55 are turned to OFF position and transistors 52 and 54 are turned to ON, no gate current is supplied to a thyristors 17 and 18, and a motor 16 is placed in the state of nondriven condition. Then, when a start and stop switch 60 is depressed, the output 14 of the J-K flip-flop 61 is turned to a low level, the output 10 of a monostable multivibrator 63 goes up to a high level for a fixed period of time and an output 11 goes up to a high level after the lapse of a fixed period of time. Therefore, thylistors 17 and 18 are turned to ON at the continuity angle determined by a current IG1 and a motor 16 runs at a low speed and after lapse of a fixed time, the motor 16 is turned to ON position at the continuity angle to be determined by a current IG2 and the motor runs at the prescribed speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3152780A JPS56129584A (en) | 1980-03-14 | 1980-03-14 | Speed controlling device for motor on sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3152780A JPS56129584A (en) | 1980-03-14 | 1980-03-14 | Speed controlling device for motor on sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56129584A true JPS56129584A (en) | 1981-10-09 |
Family
ID=12333655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3152780A Pending JPS56129584A (en) | 1980-03-14 | 1980-03-14 | Speed controlling device for motor on sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56129584A (en) |
-
1980
- 1980-03-14 JP JP3152780A patent/JPS56129584A/en active Pending
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