JPS5749573A - Print needle driver - Google Patents
Print needle driverInfo
- Publication number
- JPS5749573A JPS5749573A JP12440280A JP12440280A JPS5749573A JP S5749573 A JPS5749573 A JP S5749573A JP 12440280 A JP12440280 A JP 12440280A JP 12440280 A JP12440280 A JP 12440280A JP S5749573 A JPS5749573 A JP S5749573A
- Authority
- JP
- Japan
- Prior art keywords
- print needle
- driving
- permanent magnet
- magnetic flux
- needle
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
- B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
- B41J2/27—Actuators for print wires
- B41J2/285—Actuators for print wires of plunger type
Landscapes
- Impact Printers (AREA)
Abstract
PURPOSE:To raise the respondence of a print needle driver with consumption of lesser electric power as well as eliminate the need for a buckling preventing means for the print needle for simplifying the structure of the driver by using a plate spring for the driving of the print needle instead of electromagnetism and also using a short needle of small mass. CONSTITUTION:When a coil 10 is not energized electrically, a print needle 2 is attracted by a core 6 by means of the magnetism of a permanent magnet 8 through a plunger 1 against the force of a plate spring 3. When the coil 10 is electrically energized in such a way as to generate a magnetic flux directed in the opposite direction of the magnetic flux generated in the permanent magnet 8 by a printing command, the magnetic flux of the permanent magnet 8 is erased, and the print needle 2 is driven toward a recording paper 13 by means of the force of the plate spring 3. Thus, driving force at the beginning of driving is maximized but minimized at the end of driving, and the high-speed movement of standing object is made advantageously. Also, the print needle can be made shorter because it is not pierced through the core 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12440280A JPS5749573A (en) | 1980-09-08 | 1980-09-08 | Print needle driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12440280A JPS5749573A (en) | 1980-09-08 | 1980-09-08 | Print needle driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5749573A true JPS5749573A (en) | 1982-03-23 |
Family
ID=14884552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12440280A Pending JPS5749573A (en) | 1980-09-08 | 1980-09-08 | Print needle driver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5749573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021020192A1 (en) * | 2019-07-26 | 2021-02-04 | 日立オートモティブシステムズ株式会社 | Damping force adjustment-type shock absorber |
-
1980
- 1980-09-08 JP JP12440280A patent/JPS5749573A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021020192A1 (en) * | 2019-07-26 | 2021-02-04 | 日立オートモティブシステムズ株式会社 | Damping force adjustment-type shock absorber |
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