Clip actuated latch mechanism for retractable writing instrument

Details Clip actuated latch mechanism for retractable writing instrument Clip actuated latch mechanism for retractable writing instrument

1989-04-12

1990-11-27

Johnson, Richard J.

Coating implements with material supply

Projectable and retractable tool

Clasp associated with project-retract means or with latch

401106, B43K 2106, B43K 2404

Patent

active

049731793

ABSTRACT:
Mechanism for putting the head of a shaft into and out of the head of an outer sleeve comprised of an outer sleeve (1), a long hole (2) formed in the outer sleeve (1), and a clip (3) to be put into and out of the outer sleeve (1) through the long hole (2). A shaft (4) is inserted in the outer sleeve (1), and a cam mechanism (8) cooperates with the clip (3) in a manner that causes the cam mechanism (8) to move forward and backward in an axial direction according to in and out movement of the clip (3). A spring (6) spring-biases the shaft (4) toward the cam mechanism.

REFERENCES:
patent: 2583142 (1952-01-01), Frentzel
patent: 3071112 (1963-01-01), Lovejoy
patent: 4717275 (1988-01-01), Burkhardt
patent: 4790678 (1988-12-01), Araki

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