发明名称 |
Dot line printer having improved comb yoke |
摘要 |
A hammer bank assembly including a hammer base, a plurality of leaf spring type printing hammers, permanent magnets, a comb yoke and electromagnetic coils. The comb yoke has a base portion positioned on the permanent magnets and police portions secured by the base portion and extending from the base portion toward the rear faces of the printing hammers. The pole portions are made of a material capable of providing highly saturated magnetic flux density, and the base portion comprising a plurality of metal plates laminated together and containing another material which provides low saturated magnetic flux density.
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申请公布号 |
US5192148(A) |
申请公布日期 |
1993.03.09 |
申请号 |
US19910704149 |
申请日期 |
1991.05.22 |
申请人 |
HITACHI KOKI CO., LTD. |
发明人 |
SUEMATSU, SHIGENORI;MATSUMOTO, YOSHIKANE;SAKAMOTO, SHINICHI;KOBAYASHI, HIROTAKA |
分类号 |
B41J2/245;B41J2/235;B41J2/28;B41J9/38 |
主分类号 |
B41J2/245 |
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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