be set to be smaller than the distance c it is then supposed that the writing is stopped and the lower end of the slider 9 is moved away from the surface of paper or the like after the slider is moved up by the distance c under the pressure of the writing as a result the slider 9 is moved down by the resilient force of the second resilient member 18 and the lead s is pulled by the prescribed frictional force of the friction causing inner cylinder 92 of the slider since the lead s is pinched by the lead chuck 61 the chuck is moved down together with the lead however the moved down length of the lead chuck is very small and the chuck stops the pinching of the lead s after the moving down of the chuck in other words the balls 63 on the lower portion of the lead chuck 61 are in rolling contact with the inside tapered surface 64a of the metal cylinder 64 at the time of the moving down of the lead chuck so that the lead pinching force of the chuck weakens along with the moving down thereof to make it possible to move out the lead s as a result the mechanical pencil is returned to a state shown in fig1 the slider 9 is in the position shown therein for the upper half portion thereof as to fig1 the lead s is thus automatically moved out so that writing can be performed again with the mechanical pencil continuously up to the moved up.