JPS57165267A - Wire matrix type printing head and assembling method thereof - Google Patents
Wire matrix type printing head and assembling method thereofInfo
- Publication number
- JPS57165267A JPS57165267A JP4930781A JP4930781A JPS57165267A JP S57165267 A JPS57165267 A JP S57165267A JP 4930781 A JP4930781 A JP 4930781A JP 4930781 A JP4930781 A JP 4930781A JP S57165267 A JPS57165267 A JP S57165267A
- Authority
- JP
- Japan
- Prior art keywords
- gap
- armature
- core
- armature body
- printing head
- 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
- B41J2/275—Actuators for print wires of clapper type
Landscapes
- Impact Printers (AREA)
Abstract
PURPOSE:To provide a subject head which has a simple structre and a high perfomance, by a method wherein a printing magnet assembly unit consists of an armature for operating a wire, a core for attracting the armature, and two magnetic plates in which the cores are monolithically secured to both sides thereof. CONSTITUTION:An armature body 212 is supported through the medium of a pin 211 so that it can pivot in directions of arrow marks d and e of a hole in a plate. In case a coil 206 is not energized, a minute gap is formed in a circular shape centering around the pin 211 of the armature body 212 and between the armature body 212 and the core 203, and even if the armature body 212 pivots, a constant gap width is always kept. A gap 218 is further provided between the armature body 218 and a working gear 203, and the gap 218 functions as a working gap. This forms a magnetic circuit f which forms a circuit from the core 203 to the gap 217, the armature body 218, the gap 218, and the core 203.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4930781A JPS57165267A (en) | 1981-04-03 | 1981-04-03 | Wire matrix type printing head and assembling method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4930781A JPS57165267A (en) | 1981-04-03 | 1981-04-03 | Wire matrix type printing head and assembling method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57165267A true JPS57165267A (en) | 1982-10-12 |
Family
ID=12827282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4930781A Pending JPS57165267A (en) | 1981-04-03 | 1981-04-03 | Wire matrix type printing head and assembling method thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57165267A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03190755A (en) * | 1989-12-18 | 1991-08-20 | Mannesmann Ag | Dot matrix printer head |
-
1981
- 1981-04-03 JP JP4930781A patent/JPS57165267A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03190755A (en) * | 1989-12-18 | 1991-08-20 | Mannesmann Ag | Dot matrix printer head |
US5290112A (en) * | 1989-12-18 | 1994-03-01 | Mannesmann Aktiengesellschaft | Matrix print head, in particular serial matrix pin print head |
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