发明公开
EP0601377A3 Printer hammer-spring 失效
打印机锤子弹簧

Printer hammer-spring
摘要:
The specification sets forth a hammerspring (24) for a dot matrix printer having a plurality of such hammersprings (24) spaced along a hammerbank (10) with permanent magnetics to draw said hammersprings (24) into a retracted and uniformly stressed mode through a spring portion which are released by overcoming the magnetic retention, the hammerspring (24) formed with a base portion connected to the hammerbank (10) with a spring portion extending from said base portion having a decreasing transverse cross sectional area extending to an enlarged end portion for improved magnetic retention against said permanent magnets (66).
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