WRITING IMPLEMENT WITH IMPROVED CARTRIDGE HOLDER

摘要

The refill cartridge of a writing implement is retained in a hollow tubular assembly having an interior frustoconical portion at one end to receive and retain a tapered split collar portion of a cartridge retaining tip. The tapered split collar has an interior surface which may include at least one interior radial surface which along with friction between the collar interior surface and the refill cartridge locks the refill in proper position when stressed inwardly by insertion of the tapered split collar in the frustoconical portion of the tubular barrel.