| abstract |
An erasable ink writing instrument (10) comprising a body (12) extending along an axis (X), the body (12) having a first end (12A) and a second end (12B) opposed to the first end (12A) along the axis (X), the first end (12A) being provided with a writing tip (14) and with an eraser (16), wherein the writing tip (14) is fed with erasable ink, wherein the writing tip (14) is fixed with regard to the body (12) and the eraser (16) is movable along the axis (X) with regard to the body (12), and the erasable ink writing instrument (10) further comprising a helical-cam propelling mechanism (18) configured to move the eraser (16) along the axis (X) between a retracted position and a protruding position. |