发明名称 |
BALLASTIC TYPE WIRE PRINTING HEAD |
摘要 |
A ballistic type wire printing head comprises a metal front support (11) for guiding the printing wires (23) and supporting a group of actuating electromagnetic units (37, 39, 41) associated with the wires. The armatures (41) of the electromagnetic units are pre-assembled on a disc (40) of plastics material. A rear cover (59) which is also of metal encloses the electromagnetic units and in its interior supports spring spider (58) which co-operates with all the armatures of the electromagnetic units. The electromagnetic units have a common internal, ferromagnetic support (35) from which heat is conducted to the front support (11) and cooling fins (25). In a second embodiment, the printing head also comprises a second group of electromagnetic units associated with another series of printing wires. In that case, an intermediate metal member acts as a cover member for the first group of electromagnetic units and as a support for the second group of electromagnetic units. |
申请公布号 |
DE3379898(D1) |
申请公布日期 |
1989.06.29 |
申请号 |
DE19833379898 |
申请日期 |
1983.10.12 |
申请人 |
ING. C. OLIVETTI & C., S.P.A. |
发明人 |
PREVIGNANO, PAOLO;PERETTI, ARMANDO;BERNARDIS, FRANCESCO;ADAMOLI, CONTARDO |
分类号 |
B41J2/275;B41J2/235;B41J29/377;(IPC1-7):B41J3/12 |
主分类号 |
B41J2/275 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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