Patent ID: 6749354
Filing Date: 2004-06-15
Classification: B43K

Abstract:
A composite writing implement comprising:a barrel; a pencil lead feeder unit axially slidably placed in the barrel; a ballpoint refill unit disposed behind and coaxially with the pencil lead feeder unit in the barrel; an interlocking means for interlocking the pencil lead feeder unit and the ballpoint refill unit; and a cap capable of being used as a stylus, for covering a ballpoint tip of the ballpoint refill, wherein the pencil lead feeder unit includes a lead tank containing pencil leads, a chuck fixedly connected to the lead tank, a chuck spring urging the lead tank backward together with the chuck, and a chuck ring capable of closely engaging with a front chucking part of the chuck to make the chuck hold a lead; the ballpoint refill unit includes a ballpoint refill, and a ballpoint refill case fixedly holding the ballpoint refill therein; the interlocking mechanism includes a rotary cam member having a back end part interlocked with a front end part of the ballpoint refill case and a front end part provided with a face cam engaging with a back end of the lead tank of the pencil lead feeder unit; the cap is connected to the back end part of the ballpoint refill case such that the cap is unable to turn relative to the ballpoint refill case, is able to turn together with the ballpoint refill case, and can be removed from the ballpoint refill case; and the rotary cam member is turned together with the ballpoint refill case by turning the cap to make the pencil lead feeder unit feed a lead.