Patent ID: 6379067
Filing Date: 2002-04-30
Classification: B43K

Abstract:
A double-chuck mechanical pencil, comprising:an outer tube; a tip fitting provided in a front of the outer tube, and including a tip; a tip chuck, located at the tip of the tip fitting, for holding and releasing a lead when in a forward position and urged rearwardly in an axial direction; and a delivery chuck for delivering the lead, the delivery chuck being movable forwardly to deliver the lead after the tip chuck has been moved forwardly to release the lead, wherein at least one of the tip chuck and the delivery chuck is formed of a synthetic resin material, wherein said tip chuck holds with a pressure and releases with a lesser pressure said lead so as not to drop the lead, and wherein said delivery chuck is urged rearwardly by a first spring and said tip chuck is urged rearwardly by a second spring, said second spring having a smaller elastic resilient force than that of said first spring.