| 摘要 |
PURPOSE:To provide a low-cost multiple writing tool which can select between writing elements to allow a selected writing elements to pop up from the tip orifice of a tip shaft with the rotation of a rear shaft against an intermediate shaft, and also enables the popping-up of an eraser with the rotation of the rear end part of an eraser feed element against the rear shaft. CONSTITUTION:Main parts are constituted of resin moldings. A spiral cylinder 34 and an inner cylinder 38, with an engagement part 53 fixed to the rear end of a cylinder cam 5 or the inner hole surface of a rear shaft 4, which can only rotate but is prevented from slipping off, are provided. In addition, a slit part 44 is formed behind the inner cylinder and an eraser 54 is held by a slider 47 with a protrusion 22 provided on the lateral surface. The protrusion penetrates the slit part and becomes engaged with a spiral groove 35. The protrusion is guided into the slit part, and the-slider slides in an axial direction by rotating the rear end part of an eraser feed element against the rear shaft. Thus the eraser pops up from the rear end of the spiral cylinder. |
