Push-out-type writing implement
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United States of America Patent
Stats
-
Apr 1, 2003
Grant Date -
Nov 28, 2002
app pub date -
May 15, 2002
filing date -
May 22, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A click-type writing implement with reduced diameter by suppressed swerving of writing element during advancing and with improved easiness of assembling and improved ornamental appearance, comprising manipulator pieces on outside; actuator pieces respectively advanced or retracted by the manipulator pieces; a main shaft arranging writing elements as forward and rearward slidable; springs respectively applying rearward stress on the actuator pieces. The each actuator piece has a first and second projecting portions, which protrude laterally respectively at forefront portion and at a rearward portion distanced from the forefront portion. The main shaft has an inner face comprised of a small-internal-diameter portion in vicinity of rearmost retracted position of the second projecting portion. The second projecting portion has a cam face for creating outward propelling force when two of the second projecting portions axially bear with each other.
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