Shield for doctor blade holder

B - Operations – Transporting – 41 – F

Patent

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Details

B41F 31/02 (2006.01) B41F 9/10 (2006.01) B41F 31/00 (2006.01) B41F 31/07 (2006.01)

Patent

CA 2499206

For use with an ink chamber housing of a printing machine, a combination includes a doctor blade adapted to be secured to the ink chamber housing (10) so as to extend outwardly therefrom, the doctor blade including a doctoring plate (16) having a rear portion to be secured to the ink chamber housing and a front doctoring edge in contact with the outer surface of the roll (12) to meter ink thereto, and a chamber doctor blade shield (22) having one end fixed to the doctor blade in spaced relation from the doctoring edge and a second opposite free end unsecured to the doctoring plate, so as to cover the outer surface of the ink chamber housing to prevent ink from depositing thereon when the combined doctor blade and chamber doctor blade shield is clamped to the chamber housing.

L'invention concerne une combinaison s'utilisant avec un corps de chambre d'encrage de machine à imprimer, qui comprend une racle conçue pour être fixée audit corps de manière à s'étendre vers l'extérieur depuis celui-ci. La racle comprend une plaque de raclage comportant une partie arrière se fixant au corps de chambre d'encrage, et un bord de raclage avant en contact avec la surface extérieure du rouleau pour alimenter ce dernier en encre ; et un dispositif de protection de racle de chambre qui présente une extrémité fixée à la racle, de manière espacée par rapport au bord de raclage ; et une seconde extrémité libre opposée non fixée à la plaque de raclage, qui couvre la surface extérieure du corps de chambre d'encrage afin d'empêcher l'encre de se déposer sur celle-ci lorsque la combinaison racle et dispositif de protection de racle de chambre est fixée par serrage au corps de la chambre.

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