TUBE–TIGE D ACCESSOIRE D ECRITURE AYANT UN DISPOSITIF AUXILIAIRE DE SUPPORT

N° de brevet: EP1894742 (A1)
Date de publication: 2008-03-05
Inventeur(s): YOKOUCHI NOBUO [JP];HENMI TOSHIRO [JP];MIYASHITA YASUSHI [JP];YOSHIHARA NAOTO [JP];
Demandeur(s): PENTEL KK [JP];
Classification: B43K3/00;B43K23/012;
N° de demande: EP20060745627 20060424 
Numéro(s) de priorité: WO2006JP308549 20060424;JP20050128737 20050426;JP20050314185 20051028;JP20050346100 20051130 
The invention is to provide a shaft cylinder of a writing tool permitting stable support of the writing tool without being affected by the way in which the user grips it or by his or her gripping force, making it possible to achieve a sufficient writing load with a relatively small gripping force and superiority in portability and handling ease. To address this requirement, the shaft cylinder of a writing tool according to the invention is characterized in that an inter-finger contact lever is formed in the intermediate part of the shaft cylinder in the lengthwise direction and a grip is disposed ahead of the inter-finger contact lever, the shaft cylinder of a writing tool having an aid formed by arranging the inter-finger contact lever to be accommodable into the shaft cylinder. 



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