| 摘要 |
<p>The only pen of its kind: it is automatic, with a shutter system that requires only one finger to operate. The nib can be retracted at the push of button which operates a shutter system (fig. 1;d) and is therefore protected from contact with the atomosphere and consequent evaporation of ink. The mechanism consists of: a flexible, malleable shutter which can be made of plastic or rubber (fig. 6;b) which slides in a groove on the inside of the upper part of the pen (fig. 6;h), an external sliding button (fig. 7), an inner plastic or metal strip, with its own groove (fig. 8;g,e) attached to the ink-pad on the inside by a hook which guides the ink-pad down on retraction of the nib. In this way there is no further need for a protective cap: the nib lasts longer as it is always retracted after use. The security is at the most: never there is the danger, for children and adults, to ingest the cap.</p> |
