Mechanical pencil

Details Mechanical pencil Mechanical pencil

1998-10-19

2000-07-04

Walczak, David J.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 67, B43K 2116

Patent

active

060829168

ABSTRACT:
In a mechanical pencil capable of double-chuck and side-knock type lead control functions, a slide member is axially slidably fitted in a barrel fixedly provided at its front end with a head cap, a knocking member is pivotally supported in an opening formed in the barrel to operate the slide member so that a lead projecting back chuck on which a chuck ring is loosely fitted is advanced against the resilience of a chuck spring biasing the lead projecting back chuck backward to project a lead, a sleeve is fitted on the back chuck, an inner barrel is fitted on the sleeve, and a lead holding front chuck is placed in the head cap and is biased backward by a spring.

REFERENCES:
patent: 5702193 (1997-12-01), Kageyama et al.

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