US 12,246,554 B2
Writing instruments
Georgios Katsikas, Anoixi (GR); and Dimitrios Efthimiadis, Anoixi (GR)
Assigned to BIC Violex Single Member S.A., Anoixi (GR)
Filed by BIC Violex Single Member S.A., Anoixi (GR)
Filed on Dec. 22, 2023, as Appl. No. 18/394,734.
Claims priority of application No. 22216150 (EP), filed on Dec. 22, 2022.
Prior Publication US 2024/0208260 A1, Jun. 27, 2024
Int. Cl. B43K 24/08 (2006.01)
CPC B43K 24/082 (2013.01) 18 Claims
OG exemplary drawing
 
1. A writing instrument comprising:
a barrel having a longitudinal axis,
a cartridge,
a writing tip provided at one end of the cartridge,
a self-retracting system configured to slide the cartridge axially inside the barrel between a first extended forward position wherein the writing tip extends outside the barrel and a second retracted rearward position wherein the writing tip is retracted inside the barrel from the first extended forward position along an axial rearward direction, the self-retracting system comprising:
a button configured to, when actuated, move the cartridge into the first extended forward position, and when not actuated, move the cartridge into the second retracted rearward position, and
wherein the self-retracting system further comprises a linkage that connects the button and the cartridge, the linkage being configured to convert an actuation of the button into a linear motion of the cartridge along the longitudinal axis, and wherein the linkage comprises a first sliding end configured to slide against an inclined surface of the cartridge, the linkage and the cartridge being configured so that upon actuation of the button, the first sliding end exerts pressure on the inclined surface so as to move the cartridge frontward.