Side knock type mechanical pencil

A side-knock mechanical pencil comprising:

• a generally cylindrical barrel having an inner diameter;
• a knock lever disposed within a side of said barrel;
• chuck means disposed within said barrel to advance a pencil lead out of a front end of said barrel upon side-knock operation of said knock lever;
• a generally elongated slide member disposed within said barrel in a manner to be axially movable relative to said barrel, said slide member being connected at a front end thereof to said chuck means and having a lead passageway communicating with said chuck means and a large-diameter portion serving as guide means for the replenishment of at least one pencil lead, said large-diameter portion having an outer diameter slightly smaller than the inner diameter of said barrel;
• a biasing member disposed within said barrel to bias an assembly comprising said chuck means and said slide member backward;
• and
• means on said slide member contacting said knock lever for facilitating forward sliding of said assembly against the biasing action of said biasing member when said knock lever is pressed, said means on said slide member contacting said knock lever comprising a slanted portion having a surface that is angled relative to a longitudinal axis of said lead passageway.