Mechanical pencil

Details Mechanical pencil Mechanical pencil

2005-06-21

2005-06-21

Walczak, David J. (Department: 3751)

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including holder

C401S086000, C401S087000

Reexamination Certificate

active

06908246

ABSTRACT:
A mechanical pencil includes a barrel, a lead feeding mechanism disposed in the barrel to tighten and feed a lead, and a lead holder disposed between the lead feeding mechanism and a tip end of the barrel. The lead holder includes a through hole through which the lead penetrates, holding portions for holding the lead, and a contact portion for contacting an inner peripheral face of the barrel. The holding portions include a first holding portion at a front portion of the lead holder and a second holding portion at a rear portion of the lead holder. When a length of the lead becomes shorter than a distance between the lead feeding mechanism and the tip end of the barrel, the first holding portion holds the short lead and the second holding portion holds a next lead tightened by the lead feeding mechanism.

REFERENCES:
patent: 4714365 (1987-12-01), Kageyama et al.
patent: 5462376 (1995-10-01), Kageyama et al.
patent: 6234697 (2001-05-01), Kanari et al.
patent: 0 709 233 (1996-05-01), None

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