IT1254641B - Testa stampante a matrice di aghi del tipo costruttivo ad armatura incernierata - Google Patents
Testa stampante a matrice di aghi del tipo costruttivo ad armatura incernierataInfo
- Publication number
- IT1254641B IT1254641B ITMI920422A ITMI920422A IT1254641B IT 1254641 B IT1254641 B IT 1254641B IT MI920422 A ITMI920422 A IT MI920422A IT MI920422 A ITMI920422 A IT MI920422A IT 1254641 B IT1254641 B IT 1254641B
- Authority
- IT
- Italy
- Prior art keywords
- magnetic
- anchor
- column
- magnetic yoke
- needle
- Prior art date
Links
- 239000011159 matrix material Substances 0.000 title abstract 2
- 238000010276 construction Methods 0.000 abstract 1
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
In una testa stampante a matrice di aghi del tipo costruttivo ad armatura incernierata, in un alloggiamento (1) è associato a ciascun ago stampante (2) un giogo magnetico (3), su una colonna (3a) del giogo magnetico è disposta una bobina elettromagnetica (4), e un primo circuito magnetico (9) viene richiuso attraverso un'ancora (5), che forma l'azionamento dell'ago stampante (2).Per poter generare con la massa più piccola possibile dell'ancora (5) e quindi con lo spessore più piccolo possibile, ciononostante, una forza magnetica elevata, viene proposto che oltre al primo circuito magnetico (9) che si estende attraverso il giogo magnetico (3) e l'ancora (5), sia previsto un secondo circuito magnetico (10) addizionale, collegato in parallelo, e che il secondo circuito magnetico (10) si estenda attraverso una colonna (3a) del giogo magnetico, l'ancora (5), un'altra riluttanza magnetica (11) e di ritorno nell'ancora (5) e attraverso l'altra colonna (3b) del giogo magnetico.Fig. 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4113802A DE4113802A1 (de) | 1991-04-24 | 1991-04-24 | Matrixnadeldruckkopf in klappankerbauart |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI920422A0 ITMI920422A0 (it) | 1992-02-26 |
ITMI920422A1 ITMI920422A1 (it) | 1993-08-26 |
IT1254641B true IT1254641B (it) | 1995-09-28 |
Family
ID=6430488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI920422A IT1254641B (it) | 1991-04-24 | 1992-02-26 | Testa stampante a matrice di aghi del tipo costruttivo ad armatura incernierata |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPH05138903A (it) |
DE (1) | DE4113802A1 (it) |
FR (1) | FR2675738A1 (it) |
GB (1) | GB2257659A (it) |
IT (1) | IT1254641B (it) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214836A (en) * | 1978-03-24 | 1980-07-29 | Digital Equipment Corporation | Impact print head |
JPS5579178A (en) * | 1978-12-12 | 1980-06-14 | Citizen Watch Co Ltd | Driving mechanism for printing needle |
JPS59218871A (ja) * | 1983-05-27 | 1984-12-10 | Matsushita Electric Works Ltd | ドツトプリンタ用電磁石装置 |
IT1163942B (it) * | 1983-09-27 | 1987-04-08 | Honeywell Inf Systems | Gruppo elettromagnetico di stampa per stampante a mosaico |
JPS61268458A (ja) * | 1985-05-23 | 1986-11-27 | Seikosha Co Ltd | プリンタヘツド |
DE68917414T2 (de) * | 1988-10-18 | 1994-12-01 | Seiko Epson Corp | Druckkopf für Anschlagpunktdrucker. |
-
1991
- 1991-04-24 DE DE4113802A patent/DE4113802A1/de not_active Ceased
-
1992
- 1992-02-26 IT ITMI920422A patent/IT1254641B/it active
- 1992-04-16 FR FR9204699A patent/FR2675738A1/fr active Pending
- 1992-04-21 JP JP4128226A patent/JPH05138903A/ja active Pending
- 1992-04-23 GB GB9208806A patent/GB2257659A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE4113802A1 (de) | 1992-10-29 |
GB2257659A (en) | 1993-01-20 |
GB9208806D0 (en) | 1992-06-10 |
FR2675738A1 (fr) | 1992-10-30 |
ITMI920422A0 (it) | 1992-02-26 |
JPH05138903A (ja) | 1993-06-08 |
ITMI920422A1 (it) | 1993-08-26 |
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