Importance

Loading Importance Indicators...

Abstract

A mechanical pencil comprises a main body, a lead-feeding mechanism disposed in the main body for gripping a lead at a lead-gripping position and for feeding the lead to an advanced position, and a mouthpiece connected to the main body. A slider is slidably fitted in the mouthpiece. A lead-holding member is disposed in the slider for frictionally holding the lead fed to the advanced position. A slider-resisting member is disposed in contact with the slider for applying a frictional resistance to the slider larger than a frictional resistance of the lead-holding member. Control portions are provided for controlling the frictional resistance applied to the slider by the slider-resisting member to bring the slider-resisting member in slight contact with or non-contact with the slider so that the frictional resistance of the slider-resisting member is smaller than the frictional resistance of the lead-holding member in a region corresponding to a return amount of the lead when the lead fed to the advanced position by the lead-feeding mechanism returns to the lead-gripping position.

Loading the Abstract Image...

First Claim