| 摘要 |
A mechanism for driving a recording pen in an automatic drafting machine, an X-Y plotter, etc., comprising a moving coil which is operated unitarily with the recording pen, magnetic circuits in which a center pole, permanent magnets and legs are arranged so as to interlink magnetic fluxes to the moving coil, a holder which holds the recording pen, and a supporting shaft and bearings which support the holder, the moving coil being supplied with current to drive the recording pen.
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