Slider for mechanical pencil

Details Slider for mechanical pencil Slider for mechanical pencil

1995-04-28

1998-03-31

Bratlie, Steven A.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 80, B43K 21027

Patent

active

057330573

ABSTRACT:
A slider for a mechanical pencil comprises: a slider body provided with a through bore through which a lead is passed and disposed in the tip of a barrel so as to be axially slidable in a predetermined range; a lead guide concentrically fixed to the slider body so as to let the lead slide therethrough; a sliding part concentrically connected to the outer circumference of the rear end of the slider body so as to extend forward and to be able to slide against a predetermined frictional resistance relative to the inner circumference of the tip; and a lead guiding part disposed in one end of the slider body and capable of expansion and of applying a frictional resistance smaller than that applied to the sliding part by the inner circumference of the tip to the lead.

REFERENCES:
patent: 4281939 (1981-08-01), Mitsuya
patent: 4714365 (1987-12-01), Kageyama et al.
patent: 4884910 (1989-12-01), Kageyama et al.

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