Composite writing utensil

Details Composite writing utensil Composite writing utensil

2006-07-25

2006-07-25

Walczak, David J. (Department: 3751)

Coating implements with material supply

Plural tools including projectable and retractable tool

Selective individual projection by single actuator

C401S032000, C401S030000

Reexamination Certificate

active

07080949

ABSTRACT:
A composite writing utensil for housing a plurality of writing members, at least one of which is a propelling pencil writing member, comprises a front shaft, a rear shaft which is rotatable relative to the front shaft, and a guide shaft for guiding the writing member in the back-and-forth direction. An annular engaging stepped portion projecting in the direction of inner diameter is formed on an inner peripheral surface of the rear shaft, and a plurality of engaging pieces formed at the rear end portion of the guide shaft to pass through an inner diameter-side hollow portion defined by the annular engaging stepped portion of the rear shaft and to be engaged with the engaging stepped portion of the rear shaft. A lead guiding member rotatable relative to the rear shaft is disposed between the plurality of the engaging pieces. The lead guiding member includes a lead guiding portion which further extends forward and communicates to an aperture at the rear end of the lead case of the propelling pencil writing member, and is formed with a plurality of concave portions on its peripheral surface to be fitted with the plurality of the engaging pieces.

REFERENCES:
patent: 4283151 (1981-08-01), Sekiguchi
patent: 5749663 (1998-05-01), Takahashi
patent: 5909975 (1999-06-01), Kobayashi
patent: 6315477 (2001-11-01), Kuhn et al.
patent: 11-314491 (1999-11-01), None

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