| 摘要 |
PROBLEM TO BE SOLVED: To enable smooth projection and withdrawal of writing end parts and to prevent clothes or the like from being stained by a method wherein writing bodies are moved forward and backward along helical grooves provided in a holder tube and are projected selectively by rotating a cap and portions connecting ink storing parts and the wiring end parts are formed of bendable parts. SOLUTION: When a cap 34 is rotated in one direction, slidable projecting parts 25 of sliders 21a and 21b slide along helical grooves 32b provided in the inner peripheral surface of a holder tube 30, one of the sliders moves forward, while the other moves backward, and the writing end part of a writing body 1a or 1b on the forward moving side is projected from the fore end opening of the holder tube 30. The writing end part is projected and withdrawn smoothly from the fore end opening, since a flexible bendable part 4 is provided in a writing front portion, although the shape of ink storing parts of the writing bodies 1a and 1b is unvaried. In a state wherein one writing body 1a is projected, besides, a ball part 39 of a clip 38 and a bulge part 33 of the peripheral surface of the holder tube 30 engage with each other and bring about a state wherein the clip 38 can not be put on a breast pocket or the like, and thus clothes or the like can be prevented from being stained. |
