Writing or drawing instrument has receiver displaceable along longitudinal axis of housing for preset stroke, with pre-stressing springs

摘要

The writing or drawing instrument has a receiver (5) which can be displaced along an axis parallel to the longitudinal axis (L) of the housing (8) for a preset stroke (A). There are adjustable-force springs (12) to pre-stress the receiver at the beginning of its axial stroke, where the writing tip (4) is at maximum projection from the underside of the housing