Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 15, 2009
Patent Application Number
11920199
Date Filed
May 11, 2006
Patent Primary Examiner
Patent abstract
A mechanical pencil includes an advancing mechanism and a slider both incorporated in a main body. The advancing mechanism has a chuck and a chuck ring (collar for fastening the chuck) for holding a lead, so as to advance the lead. The slider is slidable relative to the main body and has a lead guide and a lead friction member. The lead friction member is to friction with the lead and is made of thermoplastic elastomer.
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