| 摘要 |
<p>The change-over device for alternate advance of pencil leads or ink refills in a multi-colour pen comprise a plastic housing (7) with parallel longitudinal grooves (11, 12) guiding two springs (22) and their central connecting portion (23). In the housing is an extension (13) forming a sliding guide for two refill carriers (14, 15) which are in the form of slide blocks and to which are attached actuating keys (17, 18). The end of the extension stops the refill carrier in the writing position, with simultaneous release of the other refill carrier. Corresponding opposed edges (14d, 15d) are formed in the refill carriers.</p> |
