| 摘要 |
PURPOSE: A writing tool is provided to simplify the constitution, to lower the manufacturing cost and to allow the pre-stored advertising sound to be outputted if a pencil lead is withdrawn. CONSTITUTION: A writing tool comprises a writing part(100) which projects or withdraws a pencil lead(120) by pushing the rear part; and a sound output part(200) which comprises a speaker(210), a PCB(220) for generating the electrical signal to be outputted as sound, a battery(230), and a switching terminal(222) for switching the supply of power from the battery, wherein the sound output part is pushed from the rear part to project or withdraw the pencil lead with switching the switching terminal simultaneously, thereby outputting sound by the PCB. |
