| 摘要 |
PURPOSE: To make operation easy for an operator with small hands by a method in which the end of a core body is pushed to protrude from a pen point opening by sliding a slider associated with knocking a knock part, and the end of the core body is pulled back associated with the rotation of the knock part. CONSTITUTION: When a complex writing complement is slanted so that each core body 3 is positioned to be on the lower side, the end 12b of a rod-shaped pendulum 12b attached to a slider 8 is brought down so that the end 12b faces the head part 3a of the desired core body 3. In this state, when a knock part 2 is knocked to be moved to the pen point side against the energization force of the second spring 13, the slider 8 moves in a guide cylinder 12b. Since the pendulum 12 advances to the pen point side, the optional head part of the core body is pressed so that the core body 3 is extruded against the energization force of the first spring 5 to protrude the end from the opening of a body 1. Besides, when the knock part 2, etc., are restored to their original positions by the energization force of both springs 5, 13, the end of the core body 3 is pulled back to enable carrying. |
