| 摘要 |
<p>This writing instrument comprises: - a connecting part (7) able to rotate freely with respect to the body (1) and connected in translational movement to it; - an operating member (5), accessible by the user from the outside of the writing instrument and fixed to the connecting part (7); - means for so coupling the connecting part (7) with the writing block (3) that a rotation of this connecting part in a particular direction brings about a lengthwise movement of the writing block (3) also in a particular direction; and - means for providing the rotational union of the writing block (3) with, and its freedom of translational movement from, the body (1). <IMAGE></p> |
