Recorder with a pencil pen and method therefor

A recorder with a pencil pen having a plurality of pencil leads therein adapted to be driven out one at a time for use in recording, comprising:

• (a) the pencil pen including a lead chuck mechanism for holding and releasing the pencil lead, and a pencil lead displacement mechanism for holding the pencil lead with an appropriate friction force, said pencil lead displacement mechanism being displaceable relative to the pencil pen;
• (b) a pen block for holding the pencil pen and recording data on a record medium by the pencil pen;
• (c) a storage pen holder for storing a plurality of pencil pens or other recording pens and allowing exchange of pens with said pen block;
• (d) lead feed/eject means including first engagement means for holding the pencil pen and engaging with the knock mechanism of the pencil pen to cause the lead chuck mechanism to hold and release the pencil lead through the knock mechanism, and second engagement means for engaging with the pencil lead displacement mechanism of the pencil pen to displace the pencil lead displacement mechanism relative to the pencil pen, for ejecting an unnecessary pencil lead of the pencil pen and drive out a new pencil lead;
• and
• (e) means for alternately activating said first engagement means and said second engagement means while the pencil pen is held by said lead feed/eject means.

A recorder with a pencil pen having a plurality of pencil leads therein adapted to be driven out one at a time for use in recording, comprising:

• (a) the pencil pen including a lead chuck mechanism for holding and releasing the pencil lead, and a pencil lead displacement mechanism for holding the pencil lead with an appropriate friction force, said pencil lead displacement mechanism being displaceable relative to the pencil pen;
• (b) a pen block for holding the pencil pen and recording data on a record medium by the pencil pen;
• (c) a storage pen holder for storing a plurality of pencil pens or other recording pens and allowing exchange of pens with said pen block;
• (d) lead feed/eject means including first engagement means for holding the pencil pen and engaging with the knock mechanism of the pencil pen to cause the lead chuck mechanism to hold and release the pencil lead through the knock mechanism, and second engagement means for engaging with the pencil lead displacement mechanism of the pencil pen to displace the pencil lead displacement mechanism relative to the pencil pen, for ejecting an unnecessary pencil lead of the pencil pen and drive out a new pencil lead, and further including a movable member movable back and forth relative to said storage pen holder;
• (e) means for alternately activating said first engagement means and said second engagement means while the pencil pen is held by said lead feed/eject means, and for coupling the activation of said first engagement means and said second engagement means to the back and forth motion of the movable member of said lead feed/eject means by a cam.