| 摘要 |
<p>The writing implement has step-by-step refill advance. It has conical guide tongs, which are longitudinally displaceable within a guide sleeve with actuating button. The tongs have a cylindrical guide at one end, with two or more flexible clamp arms, merging into a tension cone as in 2731330. Each of the flexible tongue arms (28) has a stop rib (18), which projects through a longitudinal slot in the guide sleeve. The sides of the ribs facing the tension cone (15) are angled, and the front stop (17') of the ribs and an angled stop surface, extending in the same direction.</p> |
