| 摘要 |
PROBLEM TO BE SOLVED: To provide a writing implement in which a new cartridge can be pushed out on a writable position on the tip of an outer cylinder by knocking an inner cylinder protruded from the rear end of the outer cylinder. SOLUTION: A writing implement is composed of an outer cylinder 2 with a core guide hole 21 on its tip end, and a stopper 22 on its rear end, an inner cylinder 3 inserted slidably in the axial direction in the outer cylinder through an operation space 23, a plurality of writing cartridges 4 disposed and stored serially movably in the axial direction, with at least two cartridges stored in the operation space and the core guide hole, and a returnable spring fitted between the outer periphery of the inner cylinder and the inner periphery of the outer cylinder, biassing the inner cylinder backward always to the backward. Out of at least two cartridges stored in the operation space and the core guide hole, at least a part of the front cartridge 4 is fit into the core guide hole of the outer cylinder, and the rear end of the rear cartridge is eccentrically tilted to the axial line of the inner cylinder, when the writing implement 1A is held in the state of facing downward. |
