The present invention clear distinction between the projected state and the storage state of the distal end portion are possible, and to provide a structure of a writing instrument that can easily select the knock of the stroke width.
The present invention provides a writing instrument of the knock system, it is placed around the outside of the core storage mechanical unit or ballpoint pen refill holder 2 of the mechanical pencil, and while providing the outer pipe or outside post 3 is bonded to these, after end binds the button 5 are possible rush and fitted in the middle portion of the bar 4 with respect to the barrel 6 having a flexural modulus which is fixed to the barrel 6, button 5, at the stage of projecting from the barrel 6 , the tip of the bar 4 is capable of abutting the rear end of the outer pipe or outer posts 3, and at the stage of the button 5 is fitted into the barrel 6, the front side surface of the button 5, the outer pipe or the outer struts 3 writing instrument capable of achieving the above objects by the rear end and can abut against the.
.TECHNICAL