Writing instrument

Details Writing instrument Writing instrument

1994-05-31

1995-05-09

Bratlie, Steven A.

Coating implements with material supply

Projectable and retractable tool

Including retraction spring and projected-position retainer

401111, 401104, B43K 712, B43K 2408

Patent

active

054134285

ABSTRACT:
A writing instrument including; a front casing having a throughhole extending longitudinally therethrough; a refill extending in the throughhole; and a cam body located in the throughhole. The cam body has at least one cam groove formed on the inner periphery thereof, at least one cam surface provided at the end thereof, and a shoulder portion connecting the cam grooves. A rotating cam engages the edge of the cam grooves and receives an end of the refill. A cam bar having at least one projection is adapted to be inserted in the cam grooves so as to slide along the cam grooves to a shoulder portion. The cam bar is able to push the rotating cam forwardly to cause the rotating cam to rotate. An elastic body pushes the refill toward the rotating cam. rear casing is aligned with the front casing and is fixed at the cam bar.

REFERENCES:
patent: 3318289 (1967-05-01), Marynissen

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